@article{hassan_2022, title={Inception of redox cycling and its impact in biology and medicine}, volume={4}, DOI={10.1016/j.abb.2022.109256}, journal={Archives of Biochemistry and Biophysics}, publisher={Elsevier BV}, author={Hassan, Hosni M.}, year={2022}, month={Apr}, pages={109256} } @article{peacock_hassan_2021, title={Role of the Mn-Catalase in Aerobic Growth of Lactobacillus plantarum ATCC 14431}, DOI={10.3390/applmicrobiol1030040}, journal={Applied Microbiology}, author={Peacock, Trent and Hassan, Hosni M.}, year={2021}, month={Dec} } @article{troxell_mendoza_ali_koci_hassan_2020, title={Attenuated Salmonella enterica Serovar Typhimurium, Strain NC983, Is Immunogenic, and Protective against Virulent Typhimurium Challenges in Mice}, volume={8}, ISBN={2076-393X}, DOI={10.3390/vaccines8040646}, number={4}, journal={VACCINES}, author={Troxell, Bryan and Mendoza, Mary and Ali, Rizwana and Koci, Matthew and Hassan, Hosni}, year={2020}, month={Dec} } @article{hassan_mendoza_rezvani_koci_dickey_scholl_2020, title={Complete Genome Sequences of Lactobacillus Strains C25 and P38, Isolated from Chicken Cecum}, volume={9}, DOI={10.1128/MRA.00501-20}, number={39}, journal={Microbiology Resource Announcements}, publisher={American Society for Microbiology}, author={Hassan, Hosni M. and Mendoza, Mary and Rezvani, Morvarid and Koci, Matthew D. and Dickey, Allison N. and Scholl, Elizabeth H.}, editor={Rasko, DavidEditor}, year={2020}, month={Sep} } @article{meinders_mendoza_dickey_scholl_hassan_2020, title={Complete Genome Sequences of Six Lactobacilli Isolated from American Quarter Horses}, volume={9}, ISBN={2576-098X}, DOI={10.1128/MRA.00997-20}, number={47}, journal={MICROBIOLOGY RESOURCE ANNOUNCEMENTS}, publisher={American Society for Microbiology}, author={Meinders, Rachael I. and Mendoza, Mary and Dickey, Allison N. and Scholl, Elizabeth H. and Hassan, Hosni M.}, editor={Rasko, DavidEditor}, year={2020}, month={Nov} } @article{azcarate-peril_butz_cadenas_koci_ballou_mendoza_ali_hassan_2018, title={An attenuated salmonella enterica serovar typhimurium strain and galacto-oligosaccharides accelerate clearance of Salmonella infections in poultry through modifications to the gut microbiome}, volume={84}, DOI={10.1128/aem.02526-17}, number={5}, journal={Applied and Environmental Microbiology}, author={Azcarate-Peril, M. A. and Butz, N. and Cadenas, M. B. and Koci, Matthew and Ballou, A. and Mendoza, M. and Ali, R. and Hassan, Hosni}, year={2018} } @article{allali_arnold_roach_cadenas_butz_hassan_koci_ballou_mendoza_ali_et al._2017, title={A comparison of sequencing platforms and bioinformatics pipelines for compositional analysis of the gut microbiome}, volume={17}, DOI={10.1186/s12866-017-1101-8}, journal={BMC Microbiology}, author={Allali, I. and Arnold, J. W. and Roach, J. and Cadenas, M. B. and Butz, N. and Hassan, Hosni and Koci, Matthew and Ballou, A. and Mendoza, M. and Ali, R. and et al.}, year={2017} } @article{hughes_ali_mendoza_hassan_koci_2017, title={Impact of Dietary Galacto-Oligosaccharide (GOS) on Chicken’s Gut Microbiota, Mucosal Gene Expression, and Salmonella Colonization}, volume={4}, ISSN={2297-1769}, url={http://dx.doi.org/10.3389/fvets.2017.00192}, DOI={10.3389/fvets.2017.00192}, journal={Frontiers in Veterinary Science}, publisher={Frontiers Media SA}, author={Hughes, Rebecca-Ayme and Ali, Riawana A. and Mendoza, Mary A. and Hassan, Hosni M. and Koci, Matthew D.}, year={2017}, month={Nov} } @article{troxell_fink_dickey_scholl_hassan_2016, title={Complete Genome Sequence of NC983, a Live Attenuated Strain of Salmonella enterica Serovar Typhimurium}, volume={4}, ISSN={2169-8287}, url={http://dx.doi.org/10.1128/genomeA.01074-16}, DOI={10.1128/genomeA.01074-16}, abstractNote={ABSTRACT Foodborne infections caused by Salmonella enterica serovars are a significant problem worldwide. Presented here is the genome sequence of the nontyphoidal S. enterica serovar Typhimurium mutant strain NC983, a potential vaccine candidate. }, number={5}, journal={Genome Announcements}, publisher={American Society for Microbiology}, author={Troxell, Bryan and Fink, Ryan C. and Dickey, Allison N. and Scholl, Elizabeth H. and Hassan, Hosni M.}, year={2016}, month={Oct} } @book{hassan_2016, title={Designer Probiotic Lactobacilli for use in Farm Animals and Methods for Enrichment and Isolation from any Animal Species or Human}, number={17-063}, author={Hassan, H.}, year={2016}, month={Sep} } @article{ballou_ali_mendoza_ellis_hassan_croom_koci_2016, title={Development of the Chick Microbiome: How Early Exposure Influences Future Microbial Diversity}, volume={3}, ISSN={2297-1769}, url={http://dx.doi.org/10.3389/fvets.2016.00002}, DOI={10.3389/fvets.2016.00002}, journal={Frontiers in Veterinary Science}, publisher={Frontiers Media SA}, author={Ballou, Anne L. and Ali, Rizwana A. and Mendoza, Mary A. and Ellis, J. C. and Hassan, Hosni M. and Croom, W. J. and Koci, Matthew D.}, year={2016}, month={Jan} } @article{rezvani_mendoza_koci_daron_levy_hassan_2016, title={Draft Genome Sequence of Lactobacillus crispatus C25 Isolated from Chicken Cecum}, volume={4}, ISSN={2169-8287}, url={http://dx.doi.org/10.1128/genomeA.01223-16}, DOI={10.1128/genomeA.01223-16}, abstractNote={ABSTRACT Lactic acid bacteria are important members of the gut microbiota of humans and animals. Here, we present the genome sequence of Lactobacillus crispatus strain C25, originally isolated from the cecum of 4-week-old chicken fed a standard diet. This isolate represents a potential probiotic strain for poultry. }, number={6}, journal={Genome Announcements}, publisher={American Society for Microbiology}, author={Rezvani, Morvarid and Mendoza, Mary and Koci, Matthew D. and Daron, Caitlyn and Levy, Josh and Hassan, Hosni M.}, year={2016}, month={Dec} } @article{rezvani_mendoza_koci_daron_levy_hassan_2016, title={Draft Genome Sequences of Lactobacillus animalis Strain P38 and Lactobacillus reuteri Strain P43 Isolated from Chicken Cecum}, volume={4}, ISSN={2169-8287}, url={http://dx.doi.org/10.1128/genomeA.01229-16}, DOI={10.1128/genomeA.01229-16}, abstractNote={ABSTRACT Here, we present the genome sequence of Lactobacillus animalis strain P38 and Lactobacillus reuteri strain P43, both isolated from the cecum content of a 4-week old chicken fed a diet supplemented with the prebiotic β(1-4)galacto-oligosaccharide (GOS). These indigenous Lactobacillus isolates are potential probiotic organisms for poultry. }, number={6}, journal={Genome Announcements}, publisher={American Society for Microbiology}, author={Rezvani, Morvarid and Mendoza, Mary and Koci, Matthew D. and Daron, Caitlyn and Levy, Josh and Hassan, Hosni M.}, year={2016}, month={Dec} } @book{hassan_troxell_2016, title={Engineered Salmonella Serovar Typhimurium Strains, Compositions Thereof, and Methods of Use}, number={62/368,507}, author={Hassan, H.M. and Troxell, S.B.}, year={2016}, month={Jul} } @inbook{troxell_hassan_2016, place={Hoboken, New Jersey}, title={Interplay Between O2 and Iron in Gene Expression: Environmental Sensing by FNR, ArcA, and Fur in Bacteria}, ISBN={9781119004813 9781119004882}, url={http://dx.doi.org/10.1002/9781119004813.ch105}, DOI={10.1002/9781119004813.ch105}, booktitle={Stress and Environmental Regulation of Gene Expression and Adaptation in Bacteria, I&II}, publisher={John Wiley & Sons, Inc.}, author={Troxell, B. and Hassan, H.M.}, editor={de Bruijn, Frans J.Editor}, year={2016}, month={Aug}, pages={1079–1089} } @inproceedings{hassan_2016, title={The Chicken Gut Microbiome and Salmonella}, author={Hassan, H.M.}, year={2016} } @misc{hassan_2016, title={Use of Probiotics and prebiotics in Poultry}, author={Hassan, H}, year={2016}, month={Oct} } @book{hassan_2016, title={Utilization of Hydroxyl Radicalfor Accelerated Shelf-life Testing}, number={16-275}, author={Hassan, H.}, year={2016}, month={Apr} } @article{leite_troxell_bruno-bárcena_hassan_2015, title={Biology of reactive oxygen species, oxidative stress, and antioxidants in lactic acid bacteria}, DOI={10.21775/9781910190098.14}, journal={Probiotics and Prebiotics: Current Research and Future Trends}, author={Leite, M. C. T. and Troxell, B. and Bruno-Bárcena, José M and Hassan, Hosni}, year={2015}, pages={205–218} } @article{caldwell_pérez-díaz_sandeep_simunovic_harris_osborne_hassan_2015, title={Mitochondrial DNA Fragmentation as a Molecular Tool to Monitor Thermal Processing of Plant-Derived, Low-Acid Foods, and Biomaterials}, volume={80}, ISSN={0022-1147}, url={http://dx.doi.org/10.1111/1750-3841.12937}, DOI={10.1111/1750-3841.12937}, number={8}, journal={Journal of Food Science}, publisher={Wiley}, author={Caldwell, Jane M. and Pérez-Díaz, Ilenys M. and Sandeep, KP and Simunovic, Josip and Harris, Keith and Osborne, Jason A. and Hassan, Hosni M.}, year={2015}, month={Jul}, pages={M1804–M1814} } @article{caldwell_pérez-díaz_harris_hassan_simunovic_sandeep_2015, title={Mitochondrial DNA Fragmentation to Monitor Processing Parameters in High Acid, Plant-Derived Foods}, volume={80}, ISSN={0022-1147}, url={http://dx.doi.org/10.1111/1750-3841.13139}, DOI={10.1111/1750-3841.13139}, number={12}, journal={Journal of Food Science}, publisher={Wiley}, author={Caldwell, Jane M. and Pérez-Díaz, Ilenys M. and Harris, Keith and Hassan, Hosni M. and Simunovic, Josip and Sandeep, K.P.}, year={2015}, month={Nov}, pages={M2892–M2898} } @article{troxell_petri_daron_pereira_mendoza_hassan_koci_2015, title={Poultry body temperature contributes to invasion control through reduced expression of salmonella pathogenicity island 1 genes in Salmonella enterica serovars typhimurium and enteritidis}, volume={81}, DOI={10.1128/aem.02622-15}, number={23}, journal={Applied and Environmental Microbiology}, author={Troxell, B. and Petri, N. and Daron, C. and Pereira, R. and Mendoza, M. and Hassan, Hosni and Koci, Matthew}, year={2015}, pages={8192–8201} } @book{hassan_2014, title={A vector for vaccination against Lyme Disease and other insect transmitted diseases using a live Salmonella vaccine}, author={Hassan, H.}, year={2014}, month={May} } @inproceedings{allali_cadenas_ballou_mendoza_ali_hassan_koci_azcarate-peril_2014, title={Comparative analysis of 16S amplicon sequencing data from Roche 454 and Ion Torrent PGM platforms}, author={Allali, Imane and Cadenas, Maria Belen and Ballou, Anne and Mendoza, Mary and Ali, Rizwana and Hassan, Hosni and Koci, Matthew and Azcarate-Peril, M. Andrea}, year={2014}, month={May} } @inproceedings{ballou_ali_mendoza_hassan_koci_2014, title={Development of the chick microbiome: How early exposure influences future microbial diversity}, author={Ballou, A.L. and Ali, R. and Mendoza, M. and Hassan, H. and Koci, M.D.}, year={2014} } @article{husain_jones-carson_liu_song_saah_troxell_mendoza_hassan_vazquez-torresa_2014, title={Ferric uptake regulator-dependent antinitrosative defenses in salmonella enterica serovar typhimurium pathogenesis}, volume={82}, DOI={10.1128/iai.01201-13}, number={1}, journal={Infection and Immunity}, author={Husain, M. and Jones-Carson, J. and Liu, L. and Song, M. and Saah, J. R. and Troxell, B. and Mendoza, M. and Hassan, Hosni and Vazquez-Torresa, A.}, year={2014}, pages={333–340} } @article{troxell_zhang_bourret_zeng_blum_gherardini_hassan_yang_2014, title={Pyruvate Protects Pathogenic Spirochetes from H2O2 Killing}, volume={9}, ISSN={1932-6203}, url={http://dx.doi.org/10.1371/journal.pone.0084625}, DOI={10.1371/journal.pone.0084625}, number={1}, journal={PLoS ONE}, publisher={Public Library of Science (PLoS)}, author={Troxell, Bryan and Zhang, Jun-Jie and Bourret, Travis J. and Zeng, Melody Yue and Blum, Janice and Gherardini, Frank and Hassan, Hosni M. and Yang, X. Frank}, editor={Wooten, Ronald MarkEditor}, year={2014}, month={Jan}, pages={e84625} } @inproceedings{hassan_2014, title={The Chicken Gut Microbiome and Salmonella}, author={Hassan, H.M.}, year={2014}, month={Oct} } @book{hassan_fink_evans_2013, title={Attenuated FNR deficient enterobacteria}, number={US8435506B2}, author={Hassan, H. and Fink, R.C. and Evans, M.R.}, year={2013}, month={May} } @article{troxell_hassan_2013, title={Transcriptional regulation by Ferric Uptake Regulator (Fur) in pathogenic bacteria}, volume={3}, DOI={10.3389/fcimb.2013.00059}, journal={Frontiers in Cellular and Infection Microbiology}, author={Troxell, B. and Hassan, Hosni}, year={2013} } @book{hassan_fink_evans_2012, title={Attenuated FNR Deficient Enterobacteria}, number={8,101,168}, author={Hassan, H. and Fink, R.C. and Evans, M.R.}, year={2012}, month={Jan} } @article{qiu_croom_ali_ballou_smith_ashwell_hassan_chiang_koci_2012, title={Direct fed microbial supplementation repartitions host energy to the immune system}, volume={90}, DOI={10.2527/jas.2011-4611}, number={8}, journal={Journal of Animal Science}, author={Qiu, R. and Croom, J. and Ali, R. A. and Ballou, A. L. and Smith, C. D. and Ashwell, Christopher and Hassan, Hosni and Chiang, C. C. and Koci, Matthew}, year={2012}, pages={2639–2651} } @article{evans_fink_vazquez-torres_porwollik_jones-carson_mcclelland_hassan_2011, title={Analysis of the ArcA regulon in anaerobically grown Salmonella enterica sv. Typhimurium}, volume={11}, DOI={10.1186/1471-2180-11-58}, journal={BMC Microbiology}, author={Evans, M. R. and Fink, R. C. and Vazquez-Torres, A. and Porwollik, S. and Jones-Carson, J. and McClelland, M. and Hassan, Hosni}, year={2011} } @article{troxell_sikes_fink_vazquez-torres_jones-carson_hassan_2011, title={Fur negatively regulates hns and is required for the expression of HilA and Virulence in Salmonella enterica Serovar Typhimurium}, volume={193}, DOI={10.1128/jb.00942-10}, number={2}, journal={Journal of Bacteriology}, author={Troxell, B. and Sikes, M. L. and Fink, R. C. and Vazquez-Torres, A. and Jones-Carson, J. and Hassan, Hosni}, year={2011}, pages={497–505} } @article{troxell_fink_porwollik_mcclelland_hassan_2011, title={The Fur regulon in anaerobically grown Salmonella enterica sv. Typhimurium: identification of new Fur targets}, volume={11}, DOI={10.1186/1471-2180-11-236}, journal={BMC Microbiology}, author={Troxell, B. and Fink, R. C. and Porwollik, S. and McClelland, M. and Hassan, Hosni}, year={2011} } @article{dobrogosz_peacock_hassan_2010, title={Evolution of the probiotic concept: from conception to validation and acceptance in medical science}, volume={72}, DOI={10.1016/s0065-2164(10)72001-3}, journal={Advances in applied microbiology, vol 72}, author={Dobrogosz, W. J. and Peacock, T. J. and Hassan, Hosni}, year={2010}, pages={1–41} } @article{bruno-bárcena_azcarate-peril_hassan_2010, title={Role of antioxidant enzymes in bacterial resistance to organic acids}, volume={76}, DOI={10.1128/aem.02718-09}, number={9}, journal={Applied and Environmental Microbiology}, author={Bruno-Bárcena, José M and Azcarate-Peril, M. A. and Hassan, Hosni}, year={2010}, pages={2747–2753} } @article{clare_zheng_hassan_swaisgood_catignani_2008, title={Antimicrobial properties of milkfat globule membrane fractions}, volume={71}, DOI={10.4315/0362-028X-71.1.126}, number={1}, journal={Journal of Food Protection}, author={Clare, D. A. and Zheng, Z. and Hassan, Hosni and Swaisgood, H. E. and Catignani, G. L.}, year={2008}, pages={126–133} } @article{kreske_bjornsdottir_breidt_hassan_2008, title={Effects of pH, dissolved oxygen, and ionic strength on the survival of Escherichia coli O157:H7 in organic acid solutions}, volume={71}, DOI={10.4315/0362-028X-71.12.2404}, number={12}, journal={Journal of Food Protection}, author={Kreske, A. C. and Bjornsdottir, K. and Breidt, F. and Hassan, Hosni}, year={2008}, pages={2404–2409} } @article{carroll_andrus_bruno-bárcena_klaenhammer_hassan_threadgill_2007, title={Anti-inflammatory properties of Lactobacillus gasseri expressing manganese superoxide dismutase using the interleukin 10-deficient mouse model of colitis}, volume={293}, DOI={10.1152/ajpgi.00132.2007}, number={4}, journal={American Journal of Physiology. Gastrointestinal and Liver Physiology}, author={Carroll, I. M. and Andrus, J. M. and Bruno-Bárcena, José M and Klaenhammer, T. R. and Hassan, Hosni and Threadgill, D. S.}, year={2007}, pages={G729–738} } @article{fink_evans_porwollik_vazquez-torres_jones-carson_troxell_libby_mcclelland_hassan_2007, title={FNR is a global regulator of virulence and anaerobic metabolism in Salmonella enterica serovar typhimurium (ATCC 14028s)}, volume={189}, DOI={10.1128/JB.00726-06}, number={6}, journal={Journal of Bacteriology}, author={Fink, R. C. and Evans, M. R. and Porwollik, S. and Vazquez-Torres, A. and Jones-Carson, J. and Troxell, B. and Libby, S. J. and McClelland, M. and Hassan, Hosni}, year={2007}, pages={2262–2273} } @article{azcarate-peril_bruno-bárcena_hassan_klaenhammer_2006, title={Transcriptional and functional analysis of oxalyl-coenzyme A (CoA) decarboxylase and formyl-CoA transferase genes from Lactobacillus acidophilus}, volume={72}, DOI={10.1128/AEM.72.3.1891-1899.2006}, number={3}, journal={Applied and Environmental Microbiology}, author={Azcarate-Peril, M. A. and Bruno-Bárcena, José M and Hassan, Hosni and Klaenhammer, T. R.}, year={2006}, pages={1891–1899} } @article{bruno-bárcena_azcarate-peril_klaenhammer_hassan_2005, title={Marker-free chromosomal integration of the manganese superoxide dismutase gene (sodA) from Streptococcus thermophilus into Lactobacillus gasseri}, volume={246}, ISBN={0378-1097}, DOI={10.1016/j.femsle.2005.03.044}, number={1}, journal={FEMS Microbiology Letters}, author={Bruno-Bárcena, José M and Azcarate-Peril, M. A. and Klaenhammer, T. R. and Hassan, Hosni}, year={2005}, pages={91–101} } @article{bruno-bárcena_andrus_libby_klaenhammer_hassan_2004, title={Expression of a heterologous manganese superoxide dismutase gene in intestinal lactobacilli provides protection against hydrogen peroxide toxicity}, volume={70}, DOI={10.1128/AEM.70.8.4702-4710.2004}, number={8}, journal={Applied and Environmental Microbiology}, author={Bruno-Bárcena, José M and Andrus, J. M. and Libby, S. L. and Klaenhammer, T. R. and Hassan, Hosni}, year={2004}, pages={4702–4710} } @article{kong_bates_hulsmann_hassan_smith_oliver_2004, title={Role of catalase and oxyR in the viable but nonculturable state of Vibrio vulnificus}, volume={50}, DOI={10.1016/j.femsec.2004.06.004}, number={3}, journal={FEMS Microbiology Ecology}, author={Kong, I. S. and Bates, T. C. and Hulsmann, A. and Hassan, Hosni and Smith, B. E. and Oliver, J. D.}, year={2004}, pages={133–142} } @article{passos_fleming_hassan_mcfeeters_2003, title={Effect of malic acid on the growth kinetics of Lactobacillus plantarum}, volume={63}, DOI={10.1007/s00253-003-1375-7}, number={2}, journal={Applied Microbiology and Biotechnology (Internet)}, author={Passos, F. V. and Fleming, H. P. and Hassan, Hosni and McFeeters, R. F.}, year={2003}, pages={207–211} } @article{andrus_bowen_klaenhammer_hassan_2003, title={Molecular characterization and functional analysis of the manganese-containing superoxide dismutase gene (sodA) from Streptococcus thermophilus AO54}, volume={420}, DOI={10.1016/j.abb.2003.09.007}, number={1}, journal={Archives of Biochemistry and Biophysics}, author={Andrus, J. M. and Bowen, S. W. and Klaenhammer, T. R. and Hassan, Hosni}, year={2003}, pages={103–113} } @article{hulsmann_rosche_kong_hassan_beam_oliver_2003, title={RpoS-dependent stress response and exoenzyme production in Vibrio vulnificus}, volume={69}, DOI={10.1128/AEM.69.10.6114-6120.2003}, number={10}, journal={Applied and Environmental Microbiology}, author={Hulsmann, A. and Rosche, T. M. and Kong, I. S. and Hassan, Hosni and Beam, D. M. and Oliver, J. D.}, year={2003}, pages={6114–6120} } @article{caldwell_hassan_2002, title={Azotobacter chroococcum does not contain sodA or its gene product Mn-superoxide dismutase}, volume={48}, DOI={10.1139/W02-003}, number={2}, journal={Canadian Journal of Microbiology}, author={Caldwell, J. and Hassan, H.M.}, year={2002}, month={Feb}, pages={183–187} } @article{qurollo_bishop_hassan_2001, title={Characterization of the iron superoxide dismutase gene of Azotobacter vinelandii: sodB may be essential for viability}, volume={47}, DOI={10.1139/cjm-47-1-63}, number={1}, journal={Canadian Journal of Microbiology}, author={Qurollo, B. A. and Bishop, P. E. and Hassan, Hosni}, year={2001}, pages={63–71} } @misc{hassan_2001, title={Oxygen Radical Toxicity}, author={Hassan, H.}, year={2001}, month={May} } @article{lee_lee_kim_choi_hassan_chung_1998, title={Mechanism of regulation of 8-hydroxyguanine endonuclease by oxidative stress: Roles of fnr, arcA, and fur}, volume={24}, DOI={10.1016/S0891-5849(97)00427-9}, number={7-8}, journal={Free Radical Biology & Medicine}, author={Lee, H. S. and Lee, Y. S. and Kim, H. S. and Choi, J. Y. and Hassan, Hosni and Chung, M. H.}, year={1998}, pages={1193–1201} } @article{chang_hassan_1997, title={Characterization of superoxide dismutase in Streptococcus thermophilus}, volume={63}, number={9}, journal={Applied and Environmental Microbiology}, author={Chang, S. K. and Hassan, H. M.}, year={1997}, pages={3732–3735} } @inbook{hassan_1997, place={New York}, series={Lung Biology series}, title={Cytotoxicity of oxyradicals and the evolution of superoxide dismutases}, booktitle={Oxygen, gene expression and cellular function}, publisher={Marcel Dekker}, author={Hassan, H.M.}, editor={Massaro, D. and Clerch, L.Editors}, year={1997}, pages={26–51}, collection={Lung Biology series} } @article{sammour_hassan_1996, title={Enhancement of the antibacterial activity of ampicillin by liposome encapsulation}, volume={3}, ISSN={1071-7544 1521-0464}, url={http://dx.doi.org/10.3109/10717549609029460}, DOI={10.3109/10717549609029460}, number={4}, journal={Drug Delivery}, publisher={Informa UK Limited}, author={Sammour, Omima A. and Hassan, Hosni M.}, year={1996}, month={Jan}, pages={273–278} } @article{presutti_hassan_1995, title={Binding of integration host factor (IHF) to the Escherichia coli sodA gene and its role in the regulation of a sodA-lacZ fusion gene}, volume={246}, ISSN={0026-8925 1432-1874}, url={http://dx.doi.org/10.1007/bf00294686}, DOI={10.1007/bf00294686}, number={2}, journal={Molecular and General Genetics MGG}, publisher={Springer Science and Business Media LLC}, author={Presutti, David G. and Hassan, Hosni M.}, year={1995}, month={Mar}, pages={228–235} } @misc{hassan_1995, title={Metals in Biology}, author={Hassan, H.M.}, year={1995} } @inbook{hassan_1994, place={NY}, title={Regulation of the biosynthesis of manganese-superoxide dismutase in Escherichia coli in response to iron and manganese}, booktitle={Frontiers of reactive oxygen species in biology and medicine}, publisher={Elsevier Science}, author={Hassan, H.M.}, editor={Asada, K. and Yoshikawa, T.Editors}, year={1994}, pages={245–250} } @article{hassan_schrum_1994, title={Roles of manganese and iron in the regulation of the biosynthesis of manganese-superoxide dismutase inEscherichia coli}, volume={14}, ISSN={0168-6445 1574-6976}, url={http://dx.doi.org/10.1111/j.1574-6976.1994.tb00105.x}, DOI={10.1111/j.1574-6976.1994.tb00105.x}, number={4}, journal={FEMS Microbiology Reviews}, publisher={Oxford University Press (OUP)}, author={Hassan, Hosni M. and Schrum, Laura W.}, year={1994}, month={Aug}, pages={315–323} } @article{schrum_hassan_1994, title={Stability of Escherichia coli sodA mRNA and identification of the transcriptional start site(s) under different environmental and oxidative stresses}, volume={17}, ISSN={0891-5849}, url={http://dx.doi.org/10.1016/0891-5849(94)90076-0}, DOI={10.1016/0891-5849(94)90076-0}, number={3}, journal={Free Radical Biology and Medicine}, publisher={Elsevier BV}, author={Schrum, Laura W. and Hassan, Hosni M.}, year={1994}, month={Sep}, pages={209–213} } @article{schrum_hassan_1994, title={The Effects of fur on the Transcriptional and Post-transcriptional Regulation of MnSOD Gene (sodA) in Escherichia coli}, volume={309}, ISSN={0003-9861}, url={http://dx.doi.org/10.1006/abbi.1994.1115}, DOI={10.1006/abbi.1994.1115}, number={2}, journal={Archives of Biochemistry and Biophysics}, publisher={Elsevier BV}, author={Schrum, L.W. and Hassan, H.M.}, year={1994}, month={Mar}, pages={288–292} } @article{bowen_hassan_1993, title={Characterization of cis-Acting Regulatory Mutations Causing Anaerobic Expression of the sodA Gene in Escherichia coli}, volume={302}, ISSN={0003-9861}, url={http://dx.doi.org/10.1006/abbi.1993.1226}, DOI={10.1006/abbi.1993.1226}, number={2}, journal={Archives of Biochemistry and Biophysics}, publisher={Elsevier BV}, author={Bowen, S.W. and Hassan, H.M.}, year={1993}, month={May}, pages={372–379} } @article{beaumont_hassan_1993, title={Characterization of regulatory mutations causing anaerobic derepression of the sodA gene in Escherichia coli K12: cooperation between cis- and trans-acting regulatory loci}, volume={139}, ISSN={0022-1287}, url={http://dx.doi.org/10.1099/00221287-139-11-2677}, DOI={10.1099/00221287-139-11-2677}, number={11}, journal={Journal of General Microbiology}, publisher={Microbiology Society}, author={Beaumont, M. D. and Hassan, H. M.}, year={1993}, month={Nov}, pages={2677–2684} } @article{roy_klaenhammer_hassan_1993, title={Cloning and expression of the manganese superoxide dismutase gene of Escherichia coli in Lactococcus lactis and Lactobacillus gasseri}, volume={239}, ISSN={0026-8925 1432-1874}, url={http://dx.doi.org/10.1007/bf00281598}, DOI={10.1007/bf00281598}, number={1-2}, journal={Molecular and General Genetics MGG}, publisher={Springer Science and Business Media LLC}, author={Roy, Dipika G. and Klaenhammer, Todd R. and Hassan, Hosni M.}, year={1993}, month={May}, pages={33–40} } @article{passos_ollis_fleming_hassan_felder_1993, title={Modeling the cucumber fermentation: Growth ofLactobacillus plantarum}, volume={12}, ISSN={0169-4146 1476-5535}, url={http://dx.doi.org/10.1007/bf01584212}, DOI={10.1007/bf01584212}, number={3-5}, journal={Journal of Industrial Microbiology}, publisher={Oxford University Press (OUP)}, author={Passos, F. V. and Ollis, D. F. and Fleming, H. P. and Hassan, H. M. and Felder, R. M.}, year={1993}, month={Sep}, pages={341–345} } @article{passos_fleming_ollis_hassan_felder_1993, title={Modeling the specific growth rate of Lactobacillus plantarum in cucumber extract}, volume={40}, ISSN={0175-7598 1432-0614}, url={http://dx.doi.org/10.1007/bf00170443}, DOI={10.1007/bf00170443}, number={1}, journal={Applied Microbiology and Biotechnology}, publisher={Springer Science and Business Media LLC}, author={Passos, F.V. and Fleming, H.P. and Ollis, D.F. and Hassan, H.M. and Felder, R.M.}, year={1993}, month={Oct} } @article{schrum_hassan_1993, title={Transcriptional activation of Mn-superoxide dismutase gene (sodA) of Escherichia coli by MnCl2}, volume={1216}, ISSN={0167-4781}, url={http://dx.doi.org/10.1016/0167-4781(93)90143-2}, DOI={10.1016/0167-4781(93)90143-2}, number={2}, journal={Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression}, publisher={Elsevier BV}, author={Schrum, Laura W. and Hassan, Hosni M.}, year={1993}, month={Nov}, pages={186–190} } @article{beaumont_hassan_1992, title={Characterization oftrans-acting regulatory elements affecting the expression of Mn-superoxide dismutase (sodA) inEscherichia coli}, volume={25}, ISSN={0343-8651 1432-0991}, url={http://dx.doi.org/10.1007/bf01571021}, DOI={10.1007/bf01571021}, number={3}, journal={Current Microbiology}, publisher={Springer Science and Business Media LLC}, author={Beaumont, Mark D. and Hassan, Hosni M.}, year={1992}, month={Sep}, pages={135–141} } @article{rivers_hassan_1992, title={Isolation and characterization of an Escherichia coli mutant elevated in manganese-containing superoxide dismutase biosynthesis}, volume={11}, journal={Biochem. (Life Sci. Adv.)}, author={Rivers, J.C. and Hassan, H.M.}, year={1992}, pages={23–30} } @article{hassan_sun_1992, title={Regulatory roles of Fnr, Fur, and Arc in expression of manganese-containing superoxide dismutase in Escherichia coli.}, volume={89}, ISSN={0027-8424 1091-6490}, url={http://dx.doi.org/10.1073/pnas.89.8.3217}, DOI={10.1073/pnas.89.8.3217}, number={8}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Hassan, H. M. and Sun, H. C.}, year={1992}, month={Apr}, pages={3217–3221} } @article{schrum_hassan_1992, title={Transcriptional regulation of Mn-superoxide dismutase gene (sodA) of Escherichia coli is stimulated by DNA gyrase inhibitors}, volume={299}, ISSN={0003-9861}, url={http://dx.doi.org/10.1016/0003-9861(92)90261-t}, DOI={10.1016/0003-9861(92)90261-t}, number={1}, journal={Archives of Biochemistry and Biophysics}, publisher={Elsevier BV}, author={Schrum, Laura W. and Hassan, Hosni M.}, year={1992}, month={Nov}, pages={185–192} } @inbook{hassan_schiavone_1991, place={NY}, title={The role of oxygen free radicals in biology and evolution}, ISBN={0412333600; 9780412333606}, booktitle={Metazoan Life Without Oxygen}, publisher={Chapman and Hall}, author={Hassan, H.M. and Schiavone, J.R.}, editor={Bryant, C.Editor}, year={1991}, pages={19–37} } @article{mcdonald_hassan_fleming_daeschel_1991, title={Use of continuous culture for internal pH determination of lactic acid bacteria}, volume={8}, ISSN={0740-0020}, url={http://dx.doi.org/10.1016/0740-0020(91)90006-n}, DOI={10.1016/0740-0020(91)90006-n}, number={2}, journal={Food Microbiology}, publisher={Elsevier BV}, author={McDonald, L.C. and Hassan, H.M. and Fleming, H.P. and Daeschel, M.A.}, year={1991}, month={Jun}, pages={137–142} } @article{mcdonald_fleming_hassan_1990, title={Acid Tolerance of Leuconostoc mesenteroides and Lactobacillus plantarum}, volume={56}, ISSN={0099-2240 1098-5336}, url={http://dx.doi.org/10.1128/aem.56.7.2120-2124.1990}, DOI={10.1128/aem.56.7.2120-2124.1990}, abstractNote={ In this study, we determined the internal cellular pH response of Leuconostoc mesenteroides and Lactobacillus plantarum to the external pH created by the microorganisms themselves or by lactic or acetic acids and their salts added to the growth medium. Growth of Leuconostoc mesenteroides stopped when its internal pH reached 5.4 to 5.7, and growth of L. plantarum stopped when its internal pH reached 4.6 to 4.8. Variation in growth medium composition or pH did not alter the growth-limiting internal pH reached by these microorganisms. L. plantarum maintained its pH gradient in the presence of either 160 mM sodium acetate or sodium lactate down to an external pH of 3.0 with either acid. In contrast, the ΔpH of Leuconostoc mesenteroides was zero at pH 4.0 with acetate and 5.0 with lactate. No differences were found between d -(−)- and l -(+)-lactic acid for the limiting internal pH for growth of either microorganism. The comparatively low growth-limiting internal pH and ability to maintain a pH gradient at high organic acid concentration may contribute to the ability of L. plantarum to terminate vegetable fermentations. }, number={7}, journal={Applied and Environmental Microbiology}, publisher={American Society for Microbiology}, author={McDonald, L. C. and Fleming, H. P. and Hassan, H. M.}, year={1990}, month={Jul}, pages={2120–2124} } @inbook{hassan_scandalios_1990, place={NY}, series={Plant Biology}, title={Superoxide dismutases in aerobic organisms}, ISBN={0471568104; 9780471568100}, booktitle={Stress Responses in Plants: Adaptation and Acclimation Mechanisms}, publisher={Wiley-Liss}, author={Hassan, H.M. and Scandalios, J.G.}, editor={Alscher, R.G. and Cumming, J.R.Editors}, year={1990}, pages={175–199}, collection={Plant Biology} } @article{naik_hassan_1990, title={Use of site-directed mutagenesis to identify an upstream regulatory sequence of sodA gene of Escherichia coli K-12.}, volume={87}, ISSN={0027-8424 1091-6490}, url={http://dx.doi.org/10.1073/pnas.87.7.2618}, DOI={10.1073/pnas.87.7.2618}, number={7}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Naik, S. M. and Hassan, H. M.}, year={1990}, month={Apr}, pages={2618–2622} } @article{schellhorn_pou_moody_hassan_1989, title={An electron spin resonance study of oxyradical generation in superoxide dismutase- and catalase-deficient mutants of Escherichia coli K-12}, volume={271}, ISSN={0003-9861}, url={http://dx.doi.org/10.1016/0003-9861(89)90282-8}, DOI={10.1016/0003-9861(89)90282-8}, number={2}, journal={Archives of Biochemistry and Biophysics}, publisher={Elsevier BV}, author={Schellhorn, Herb E. and Pou, Sovitj and Moody, Carmella and Hassan, Hosni M.}, year={1989}, month={Jun}, pages={323–331} } @inbook{hassan_1989, place={Basel, Switzerland}, series={Forum of Nutrition}, title={Attenuation of Antioxidant Enzymes in Response to Oxidative Stresses1}, ISBN={9783805548489 9783318036015}, ISSN={1660-0347 1662-2987}, url={http://dx.doi.org/10.1159/000416712}, DOI={10.1159/000416712}, booktitle={Nutritional Impact of Food Processing. 25th Symposium of the Group of European Nutritionists, Reykjavik, September 1987}, publisher={S. Karger AG}, author={Hassan, Hosni M.}, editor={Somogyi, J.C. and Müller, H.R.Editors}, year={1989}, pages={278–287}, collection={Forum of Nutrition} } @article{hassan_lee_1989, title={Effect of temperature andhtpRon the biosynthesis of superoxide dismutase inEscherichia coli}, volume={58}, ISSN={0378-1097 1574-6968}, url={http://dx.doi.org/10.1111/j.1574-6968.1989.tb03033.x}, DOI={10.1111/j.1574-6968.1989.tb03033.x}, number={2-3}, journal={FEMS Microbiology Letters}, publisher={Oxford University Press (OUP)}, author={Hassan, Hosni M. and Lee, Fang-Jen S.}, year={1989}, month={Apr}, pages={133–137} } @inbook{hassan_1989, title={Microbial Superoxide Dismutases}, ISBN={9780120176267}, ISSN={0065-2660}, url={http://dx.doi.org/10.1016/s0065-2660(08)60223-0}, DOI={10.1016/s0065-2660(08)60223-0}, booktitle={Advances in Genetics}, publisher={Elsevier}, author={Hassan, Hosni M.}, year={1989}, pages={65–97} } @article{schiavone_hassan_1988, title={An assay for the detection of superoxide dismutase in individual Escherichia coli colonies}, volume={168}, ISSN={0003-2697}, url={http://dx.doi.org/10.1016/0003-2697(88)90343-0}, DOI={10.1016/0003-2697(88)90343-0}, number={2}, journal={Analytical Biochemistry}, publisher={Elsevier BV}, author={Schiavone, Joan R. and Hassan, Hosni M.}, year={1988}, month={Feb}, pages={455–461} } @article{andersson_daeschel_hassan_1988, title={Antibacterial activity of plantaricin SIK-83, a bacteriocin produced by Lactobacillus plantarum}, volume={70}, ISSN={0300-9084}, url={http://dx.doi.org/10.1016/0300-9084(88)90211-8}, DOI={10.1016/0300-9084(88)90211-8}, number={3}, journal={Biochimie}, publisher={Elsevier BV}, author={Andersson, Rolf E. and Daeschel, Mark A. and Hassan, Hosni M.}, year={1988}, month={Mar}, pages={381–390} } @article{bowen_hassan_1988, title={Induction of the manganese-containing superoxide dismutase in Escherichia coli is independent of the oxidative stress (oxyR-controlled) regulon.}, volume={263}, ISSN={0021-9258}, url={http://dx.doi.org/10.1016/s0021-9258(18)68110-4}, DOI={10.1016/s0021-9258(18)68110-4}, number={29}, journal={Journal of Biological Chemistry}, publisher={Elsevier BV}, author={Bowen, S W and Hassan, H M}, year={1988}, month={Oct}, pages={14808–14811} } @article{schellhorn_hassan_1988, title={Isolation and characterization of respiratory-deficient mutants of Escherichia coli K-12}, volume={170}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.170.1.78-83.1988}, DOI={10.1128/jb.170.1.78-83.1988}, abstractNote={Several mutants of Escherichia coli K-12 defective in aerobic metabolism were isolated. One such mutant was found to be deficient in cytochromes, heme, and catalase. Aerobically grown cells did not consume oxygen and could grow only on fermentable carbon sources. Supplementation of the growth medium with delta-aminolevulonic acid, protoporphyrin IX, or hemin did not restore aerobic metabolism. The lack of heme and catalase in mutant cells grown on glucose was not due to catabolite repression, since the addition of exogenous cyclic AMP did not restore the normal phenotype. When grown aerobically on complex medium containing glucose, the mutant produced lactic acid as the principal fermentation product. This pleotropic mutation was attributed to an inability of the cells to synthesize heme, and preliminary data mapped the mutation to between 8 and 13 min on the E. coli genome.}, number={1}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Schellhorn, H E and Hassan, H M}, year={1988}, month={Jan}, pages={78–83} } @article{hassan_1988, title={Regulation and synthesis of superoxide dismutase}, volume={5}, journal={Free Radical Biology and Medicine}, author={Hassan, H.M.}, year={1988}, pages={377–385} } @article{schellhorn_hassan_1988, title={Response of hydroperoxidase and superoxide dismutase deficient mutants of Escherichia coli K-12 to oxidative stress}, volume={34}, ISSN={0008-4166 1480-3275}, url={http://dx.doi.org/10.1139/m88-206}, DOI={10.1139/m88-206}, abstractNote={ In Escherichia coli, the coordinate action of two antioxidant enzymes, superoxide dismutase and hydroperoxidase (catalase), protect the cell from the deleterious effects of oxyradicals generated during normal aerobic respiration. To evaluate the relative importance of these two classes of enzymes, strains of E. coli deficient in superoxide dismutase and (or) hydroperoxidase were constructed by generalized transduction and their physiological responses to oxygen and oxidant stress examined. Superoxide dismutase was found to be more important than hydroperoxidase in preventing oxygen-dependent growth inhibition and mutagenesis, and in reducing sensitivity to redox-active compounds known to generate the superoxide anion. However, both types of enzymes were required for an effective defense against chemical oxidants that generate superoxide radicals and hydrogen peroxide. }, number={10}, journal={Canadian Journal of Microbiology}, publisher={Canadian Science Publishing}, author={Schellhorn, Herb E. and Hassan, Hosni M.}, year={1988}, month={Oct}, pages={1171–1176} } @article{whiteside_hassan_1988, title={Role of oxyradicals in the inactivation of catalase by ozone}, volume={5}, ISSN={0891-5849}, url={http://dx.doi.org/10.1016/0891-5849(88)90101-3}, DOI={10.1016/0891-5849(88)90101-3}, number={5-6}, journal={Free Radical Biology and Medicine}, publisher={Elsevier BV}, author={Whiteside, Catherine and Hassan, Hosni M.}, year={1988}, month={Jan}, pages={305–312} } @article{lee_hassan_1988, title={Stability and expression of a plasmid-containing killer toxin cDNA in batch and chemostat cultures ofsaccharomyces cerevisiae}, volume={31}, ISSN={0006-3592 1097-0290}, url={http://dx.doi.org/10.1002/bit.260310804}, DOI={10.1002/bit.260310804}, number={8}, journal={Biotechnology and Bioengineering}, publisher={Wiley}, author={Lee, Fang-Jen S. and Hassan, H. M.}, year={1988}, month={May}, pages={783–789} } @inproceedings{hassan_schellhorn_1988, title={Superoxide dismutase: an antioxidant defense enzyme}, volume={82}, booktitle={UCLA Symposia on Molecular and Cellular Biology}, author={Hassan, H.M. and Schellhorn, H.E.}, year={1988}, pages={183–193} } @article{schiavone_hassan_1988, title={The role of redox in the regulation of manganese-containing superoxide dismutase biosynthesis in Escherichia coli.}, volume={263}, ISSN={0021-9258}, url={http://dx.doi.org/10.1016/s0021-9258(18)68920-3}, DOI={10.1016/s0021-9258(18)68920-3}, number={9}, journal={Journal of Biological Chemistry}, publisher={Elsevier BV}, author={Schiavone, J R and Hassan, H M}, year={1988}, month={Mar}, pages={4269–4273} } @article{schellhorn_hassan_1988, title={Transcriptional regulation of katE in Escherichia coli K-12}, volume={170}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.170.9.4286-4292.1988}, DOI={10.1128/jb.170.9.4286-4292.1988}, abstractNote={Escherichia coli produces two distinct species of catalase, hydroperoxidases I and II, which differ in kinetic properties and regulation. To further examine catalase regulation, a lacZ fusion was placed into one of the genes that is involved in catalase synthesis. Transductional mapping revealed the fusion to be either allelic with or very close to katE, a locus which together with katF controls the synthesis of the aerobically inducible hydroperoxidase (hydroperoxidase II). katE was expressed under anaerobic conditions at levels that were approximately one-fourth of those found in aerobically grown cells and was found to be induced to higher levels in early-stationary-phase cells relative to levels of exponentially growing cells under both anaerobic and aerobic conditions. katE was fully expressed in air and was not further induced when the growth medium was sparged with 100% oxygen. Expression of katE was unaffected by the addition of hydrogen peroxide or by the presence of additional lesions in oxyR or sodA, indicating that it is not part of the oxyR regulon. When katF::Tn10 was introduced into a katE::lacZ strain, beta-galactosidase synthesis was largely eliminated and was no longer inducible, suggesting that katF is a positive regulator of katE expression.}, number={9}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Schellhorn, H E and Hassan, H M}, year={1988}, month={Sep}, pages={4286–4292} } @article{lee_hassan_1987, title={Biosynthesis of superoxide dismutase and catalase in chemostat culture of Saccharomyces cerevisiae}, volume={26}, ISSN={0175-7598 1432-0614}, url={http://dx.doi.org/10.1007/bf00253027}, DOI={10.1007/bf00253027}, number={6}, journal={Applied Microbiology and Biotechnology}, publisher={Springer Science and Business Media LLC}, author={Lee, Fang-Jen S. and Hassan, Hosni M.}, year={1987}, month={Sep}, pages={531–536} } @article{schiavone_hassan_1987, title={Biosynthesis of superoxide dismutase in eight prokaryotes: Effects of oxygen, paraquat and an iron chelator}, volume={42}, ISSN={0378-1097 1574-6968}, url={http://dx.doi.org/10.1111/j.1574-6968.1987.tb02295.x}, DOI={10.1111/j.1574-6968.1987.tb02295.x}, number={1}, journal={FEMS Microbiology Letters}, publisher={Oxford University Press (OUP)}, author={Schiavone, Joan R. and Hassan, Hosni M.}, year={1987}, month={Jun}, pages={33–38} } @article{lee_hassan_1987, title={Effect of oxygen tension on stability and expression of a killer toxin chimeric plasmid in a chemostat culture of Saccharomyces cerevisiae}, volume={27}, ISSN={0175-7598 1432-0614}, url={http://dx.doi.org/10.1007/bf00257256}, DOI={10.1007/bf00257256}, number={1}, journal={Applied Microbiology and Biotechnology}, publisher={Springer Science and Business Media LLC}, author={Lee, Fang-JenS. and Hassan, H.M.}, year={1987}, month={Oct}, pages={72–74} } @misc{hassan_1987, title={Free Radicals in Health and Disease}, author={Hassan, H}, year={1987}, month={Sep} } @article{whiteside_hassan_1987, title={Induction and inactivation of catalase and superoxide dismutase of Escherichia coli by ozone}, volume={257}, ISSN={0003-9861}, url={http://dx.doi.org/10.1016/0003-9861(87)90591-1}, DOI={10.1016/0003-9861(87)90591-1}, number={2}, journal={Archives of Biochemistry and Biophysics}, publisher={Elsevier BV}, author={Whiteside, Catherine and Hassan, Hosni M.}, year={1987}, month={Sep}, pages={464–471} } @article{hassan_moody_1987, title={Regulation of manganese-containing superoxide dismutase in Escherichia coli. Anaerobic induction by nitrate.}, volume={262}, ISSN={0021-9258}, url={http://dx.doi.org/10.1016/s0021-9258(18)45506-8}, DOI={10.1016/s0021-9258(18)45506-8}, number={35}, journal={Journal of Biological Chemistry}, publisher={Elsevier BV}, author={Hassan, H M and Moody, C S}, year={1987}, month={Dec}, pages={17173–17177} } @inbook{hassan_kao_1986, title={An alternate defense mechanism against paraquat toxicity in Escherichia coli}, booktitle={Superoxide and Superoxide Dismutase in Chemistry, Biology and Medicine}, publisher={Elsevier Science}, author={Hassan, H.M. and Kao, S.}, editor={Rotilio, G.Editor}, year={1986}, pages={354–357} } @article{lee_hassan_1986, title={Biosynthesis of superoxide dismutase and catalase inSaccharomyces cerevisiae: effects of oxygen and cytochromec deficiency}, volume={1}, ISSN={0169-4146 1476-5535}, url={http://dx.doi.org/10.1007/bf01569271}, DOI={10.1007/bf01569271}, number={3}, journal={Journal of Industrial Microbiology}, publisher={Oxford University Press (OUP)}, author={Lee, Fang-Jen and Hassan, Hosni M.}, year={1986}, month={Jul}, pages={187–193} } @article{himelbloom_hassan_1986, title={Effects of cysteine on growth, protease production, and catalase activity of Pseudomonas fluorescens}, volume={51}, ISSN={0099-2240 1098-5336}, url={http://dx.doi.org/10.1128/aem.51.2.418-421.1986}, DOI={10.1128/aem.51.2.418-421.1986}, abstractNote={Cysteine inhibits growth of and protease production by Pseudomonas fluorescens NC3. Catalase activity in P. fluorescens NC3 was increased by cysteine. The addition of exogenous hydrogen peroxide did not increase catalase activity, thus suggesting a role for the endogenous generation of hydrogen peroxide via the autoxidation of cysteine.}, number={2}, journal={Applied and Environmental Microbiology}, publisher={American Society for Microbiology}, author={Himelbloom, B H and Hassan, H M}, year={1986}, month={Feb}, pages={418–421} } @inbook{hassan_lee_1986, title={Effects of cytochrome c deficiency, paraquat and copper on the biosynthesis of copper zinc superoxide dismutase and catalase in Saccharomyces cerevisiae}, booktitle={Superoxide and Superoxide Dismutase in Chemistry, Biology and Medicine}, publisher={Elsevier Science}, author={Hassan, H.M. and Lee, F.J.}, editor={Rotilio, G.Editor}, year={1986}, pages={300–303} } @inbook{hassan_moody_1986, title={Regulation of the synthesis of superoxide dismutase in procaryotes}, booktitle={Superoxide and Superoxide Dismutase in Chemistry, Biology and Medicine}, publisher={Elsevier Science}, author={Hassan, H.M. and Moody, C.S.}, editor={Rotilo, G.Editor}, year={1986}, pages={274–279} } @inproceedings{hassan_1986, title={Role of Superoxide Dismutase in Cellular Protection}, author={Hassan, H.}, year={1986} } @article{kao_hassan_1985, title={Biochemical characterization of a paraquat-tolerant mutant of Escherichia coli.}, volume={260}, ISSN={0021-9258}, url={http://dx.doi.org/10.1016/s0021-9258(19)85108-6}, DOI={10.1016/s0021-9258(19)85108-6}, number={19}, journal={Journal of Biological Chemistry}, publisher={Elsevier BV}, author={Kao, S M and Hassan, H M}, year={1985}, month={Sep}, pages={10478–10481} } @article{lee_hassan_1985, title={Biosynthesis of superoxide dismutase in Sacchromyces cerevisiae: Effects of paraquat and copper}, volume={1}, ISSN={0748-5514}, url={http://dx.doi.org/10.1016/0748-5514(85)90138-2}, DOI={10.1016/0748-5514(85)90138-2}, number={4}, journal={Journal of Free Radicals in Biology & Medicine}, publisher={Elsevier BV}, author={Lee, Fang-Jen and Hassan, Hosni M.}, year={1985}, month={Jan}, pages={319–325} } @article{kao_hassan_1985, title={Isolation of paraquat-resistant mutants ofEscherichia coli: lack of correlation between resistance and the activity of superoxide dismutase}, volume={28}, ISSN={0378-1097 1574-6968}, url={http://dx.doi.org/10.1111/j.1574-6968.1985.tb00771.x}, DOI={10.1111/j.1574-6968.1985.tb00771.x}, number={1}, journal={FEMS Microbiology Letters}, publisher={Oxford University Press (OUP)}, author={Kao, Su Mei and Hassan, Hosni M.}, year={1985}, month={Jun}, pages={93–97} } @inbook{hassan_1985, place={Florida, US}, title={Manipulation of Superoxide Dismutase Levels in Procaryotes}, booktitle={CRC Handbook of Methods for Oxygen Radical Research}, publisher={CRC Press Inc.}, author={Hassan, H.M.}, editor={Greenwald, R.Editor}, year={1985}, pages={353–358} } @article{himelbloom_hassan_1985, title={Optimization of the hide powder azure assay for quantitating the protease of Pseudomonas fluorescens}, volume={4}, ISSN={0167-7012}, url={http://dx.doi.org/10.1016/0167-7012(85)90021-1}, DOI={10.1016/0167-7012(85)90021-1}, number={2}, journal={Journal of Microbiological Methods}, publisher={Elsevier BV}, author={Himelbloom, Brian H. and Hassan, Hosni M.}, year={1985}, month={Aug}, pages={59–66} } @article{hancock_hassan_1985, title={Regulation of the manganese-containing superoxide dismutase is independent of the inducible DNA repair system in Escherichia coli.}, volume={260}, ISSN={0021-9258}, url={http://dx.doi.org/10.1016/s0021-9258(17)38818-x}, DOI={10.1016/s0021-9258(17)38818-x}, number={24}, journal={Journal of Biological Chemistry}, publisher={Elsevier BV}, author={Hancock, L C and Hassan, H M}, year={1985}, month={Oct}, pages={12954–12956} } @article{moody_hassan_1984, title={Anaerobic biosynthesis of the manganese containing superoxide dismutase in Escherichia coli}, volume={259}, DOI={10.1016/S0021-9258(18)90820-3}, number={20}, journal={Journal of Biological Chemistry}, author={Moody, C.S. and Hassan, H.M.}, year={1984}, month={Oct}, pages={12821–12825} } @inbook{hassan_1984, title={Chemistry and Biochemistry of Oxygen and of Its Partially Reduced Derivatives}, booktitle={Oxygen: An In Depth Study of Its Pathophysiology}, publisher={Undersea Medical Society, Inc}, author={Hassan, H.M.}, editor={Totter, J.R. and Gottlieb, S.F. and Longmuir, I.S.Editors}, year={1984}, pages={307–340} } @article{hassan_moody_1984, title={Induction of the manganese-containing superoxide dismutase inEscherichia coliby nalidixic acid and by iron chelators}, volume={25}, ISSN={0378-1097 1574-6968}, url={http://dx.doi.org/10.1111/j.1574-6968.1984.tb01463.x}, DOI={10.1111/j.1574-6968.1984.tb01463.x}, number={2-3}, journal={FEMS Microbiology Letters}, publisher={Oxford University Press (OUP)}, author={Hassan, Hosni M. and Moody, Carmella S.}, year={1984}, month={Dec}, pages={233–236} } @inbook{hassan_fridovich_1984, place={North Holland}, title={Oxygen toxicity in prokaryotes}, booktitle={The Biology and Chemistry of Active Oxygen}, publisher={Elsevier}, author={Hassan, H.M. and Fridovich, I.}, editor={Bannister, J.V.Editor}, year={1984}, pages={128–138} } @inbook{hassan_1984, place={NY}, title={Superoxide Dismutase: An Antioxidant Defense Enzyme. In Free Radicals in Molecular Biology, Aging and Disease}, ISBN={0881670480 9780881670486}, booktitle={Free Radicals in Molecular Biology, Aging and Disease}, publisher={Raven Press}, author={Hassan, H.M.}, editor={Armstrong, D. and Sohal, R.S. and Cutler, R.G. and Slater, T.F.Editors}, year={1984}, pages={77–85} } @article{hassan_bhatti_white_1984, title={Superoxide dismutase, catalase and peroxidase in four strains of Neisseria meningitidis of different virulence}, volume={25}, ISSN={0378-1097 1574-6968}, url={http://dx.doi.org/10.1111/j.1574-6968.1984.tb01378.x}, DOI={10.1111/j.1574-6968.1984.tb01378.x}, number={1}, journal={FEMS Microbiology Letters}, publisher={Oxford University Press (OUP)}, author={Hassan, H.M. and Bhatti, A.R. and White, L.A.}, year={1984}, month={Nov}, pages={71–74} } @inbook{hassan_moody_1984, place={San Diego, CA}, series={Methods in Enzymology}, title={[30] Determination of the mutagenicity of oxygen free radicals using microbial systems}, ISBN={9780121820053}, ISSN={0076-6879}, url={http://dx.doi.org/10.1016/s0076-6879(84)05033-3}, DOI={10.1016/s0076-6879(84)05033-3}, booktitle={Oxygen Radicals in Biological Systems}, publisher={Academic Press/Elsevier}, author={Hassan, Hosni M. and Moody, Carmella S.}, editor={Packer, LesterEditor}, year={1984}, pages={254–263}, collection={Methods in Enzymology} } @inbook{hassan_1984, place={San Diego, CA}, series={Methods in Enzymology}, title={[53] Determination of microbial damage caused by oxygen free radicals, and the protective role of superoxide dismutase}, ISBN={9780121820053}, ISSN={0076-6879}, url={http://dx.doi.org/10.1016/s0076-6879(84)05056-4}, DOI={10.1016/s0076-6879(84)05056-4}, booktitle={Oxygen Radicals in Biological Systems}, publisher={Academic Press/Elsevier}, author={Hassan, Hosni M.}, editor={Packer, LesterEditor}, year={1984}, pages={404–412}, collection={Methods in Enzymology} } @inbook{hassan_1984, place={San Diego, CA}, series={Methods in Enzymology}, title={[69] Exacerbation of superoxide radical formation by Paraquat}, ISBN={9780121820053}, ISSN={0076-6879}, url={http://dx.doi.org/10.1016/s0076-6879(84)05072-2}, DOI={10.1016/s0076-6879(84)05072-2}, booktitle={Oxygen Radicals in Biological Systems}, publisher={Academic Press/Elsevier}, author={Hassan, Hosni M.}, editor={Packer, LesterEditor}, year={1984}, pages={523–532}, collection={Methods in Enzymology} } @misc{hassan_1983, title={Antioxidant Enzymes and Aging}, author={Hassan, H.}, year={1983}, month={Oct} } @misc{hassan_1983, title={Oxygen}, author={Hassan, H.}, year={1983}, month={Jun} } @inbook{hassan_1983, place={Holland}, title={Oxygen toxicity and mutagenicity in procaryotes}, volume={1}, booktitle={Oxy Radicals and Their scavengers Systems: Molecular Aspects}, publisher={Elsevier}, author={Hassan, H.M.}, editor={Cohen, G. and Greenwald, R.Editors}, year={1983}, pages={198–206} } @article{von stein_barber_hassan_1982, title={Biosynthesis of oxygen-detoxifying enzymes in Bdellovibrio stolpii}, volume={152}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.152.2.792-796.1982}, DOI={10.1128/jb.152.2.792-796.1982}, abstractNote={Axenically grown Bdellovibrio stolpii (i.e., grown independently of the host) was examined for superoxide dismutase, catalase, and peroxidase activities. Kinetics of enzyme synthesis were determined for aerobically grown cultures and for cultures exposed to 100% oxygen. Enzymatic activities varied with the age of the culture. Normally grown cultures exhibited maximum activity during the first 10 h of growth and again as the stationary phase was approached, beginning at about 48 h. Polyacrylamide gel electropherograms of cell-free extracts revealed that B. stolpii contained one major band (1) and two minor bands (II, III) of superoxide dismutase activity. Each of these enzymes was inactivated by H2O2, indicating that they were iron-containing enzymes. Manganese-containing superoxide dismutase was not detected in B. stolpii. Increased oxygenation did not appreciably stimulate enzyme synthesis, for only superoxide dismutase was induced, reaching maximum activity at 10 h and then rapidly falling to normal levels. Superoxide dismutase appears to be the main enzymatic defense against oxygen toxicity in B. stolpii. Induction of superoxide dismutase with 100% oxygen was manifested as an increase in the intensities of the two minor bands of activity, suggesting that isozyme I is constitutive, whereas isozymes II and III are inducible. The induction of isozymes II and III by 100% oxygen was prevented by an inhibitor of protein biosynthesis, chloramphenicol.}, number={2}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Von Stein, R S and Barber, L E and Hassan, H M}, year={1982}, month={Nov}, pages={792–796} } @inbook{hassan_fridovich_1982, place={Oxford, UK}, title={Exacerbations of Oxygen Toxicity by Redox Active Compounds}, ISBN={9780080244211}, url={http://dx.doi.org/10.1016/b978-0-08-024421-1.50011-2}, DOI={10.1016/b978-0-08-024421-1.50011-2}, booktitle={Oxidases and Related Redox Systems}, publisher={Pergamon/Elsevier}, author={Hassan, H. Moustafa and Fridovich, Irwin}, editor={King, Tsso E. and Mason, Howard S. and Morrison, MartinEditors}, year={1982}, pages={151–167} } @article{moody_hassan_1982, title={Mutagenicity of oxygen free-radicals}, volume={79}, DOI={10.1073/pnas.79.9.2855}, number={9}, journal={Proceedings of the National Academy of Sciences of the United States of America}, author={Moody, C. S. and Hassan, Hosni}, year={1982}, pages={2855–2859} } @article{hassan_moody_1982, title={Superoxide dismutase protects against paraquat-mediated dioxygen toxicity and mutagenicity: studies in Salmonella typhimurium}, volume={60}, ISSN={0008-4212 1205-7541}, url={http://dx.doi.org/10.1139/y82-204}, DOI={10.1139/y82-204}, abstractNote={ Paraquat is univalently reduced to the relatively stable, but oxygen-sensitive, paraquat radical (PQ∙+}, number={11}, journal={Canadian Journal of Physiology and Pharmacology}, publisher={Canadian Science Publishing}, author={Hassan, Hosni M. and Moody, Carmella S.}, year={1982}, month={Nov}, pages={1367–1373} } @article{hassan_fridovich_1981, title={Chemistry and biochemistry of superoxide dismutases}, volume={4}, journal={European Journal of Rheumatology and Inflammation}, author={Hassan, H.M. and Fridovich, I.}, year={1981}, pages={160–172} } @inbook{hassan_1981, place={Boston}, title={Superoxide and superoxide dismutases in Escherichia coli: threat and defense}, ISBN={0884163091 9780884163091}, booktitle={Membranes, Molecules, Toxins, and Cells}, publisher={PSG Inc}, author={Hassan, H.M.}, editor={Bloch, K. and Bolis, L. and Tosteson, D.C. and Wright, J.Editors}, year={1981}, pages={123–133} } @book{hassan_hassan_1981, title={Vacuum Drum Planters}, number={US4306509A}, author={Hassan, A.E. and Hassan, H.}, year={1981}, month={Dec} } @inbook{hassan_fridovich_1980, place={North Holland}, title={Impermeability of the Escherichia coli cell envelope to superoxide radical}, volume={11B}, booktitle={Developments in Biochemistry: Biological and Clinical Aspects of Superoxide and Superoxide Dismutase}, publisher={Elsevier North Holland}, author={Hassan, H.M. and Fridovich, I.}, editor={Bannister, W.H. and Bannister, J.V.Editors}, year={1980}, pages={57–71} } @article{hassan_dougherty_fridovich_1980, title={Inhibitors of superoxide dismutases: A cautionary tale}, volume={199}, ISSN={0003-9861}, url={http://dx.doi.org/10.1016/0003-9861(80)90290-8}, DOI={10.1016/0003-9861(80)90290-8}, number={2}, journal={Archives of Biochemistry and Biophysics}, publisher={Elsevier BV}, author={Hassan, H.Moustafa and Dougherty, Harry and Fridovich, Irwin}, year={1980}, month={Feb}, pages={349–354} } @article{hassan_fridovich_1980, title={Mechanism of the antibiotic action pyocyanine}, volume={141}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.141.1.156-163.1980}, DOI={10.1128/jb.141.1.156-163.1980}, abstractNote={Exposure of Escherichia coli growing in a rich medium to pyocyanine resulted in increased intracellular levels of superoxide dismutase and of catalase. When these adaptive enzyme syntheses were prevented by nutritional paucity, the toxic action of pyocyanine was augmented. The antibiotic action of pyocyanine was dependent upon oxygen and was diminished by superoxide dismutase and by catalase, added to the suspending medium. Pyocyanine slightly augmented the respiration of E. coli suspended in a rich medium, but greatly increased the cyanide-resistant respiration. Pyocyanine was able to cause the oxidation of reduced nicotinamide adenine dinucleotide, with O2- production, in the absence of enzymatic catalysis. It is concluded that pyocyanine diverts electron flow and thus increases the production of O2- and H2O2 and that the antibiotic action of this pigment is largely a reflection of the toxicity of these products of oxygen reduction.}, number={1}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H M and Fridovich, I}, year={1980}, month={Jan}, pages={156–163} } @inbook{hassan_1980, place={Amsterdam}, series={Ciba Foundation Symposium}, title={Superoxide Dismutases}, ISBN={9780470720622 9780444901774}, ISSN={1935-4657}, url={http://dx.doi.org/10.1002/9780470720622.ch7}, DOI={10.1002/9780470720622.ch7}, booktitle={Biological Roles of Copper}, publisher={Excerpta Medica/John Wiley & Sons, Ltd.}, author={Hassan, Hosni Moustafa}, editor={Evered, David and Lawrenson, GeralynEditors}, year={1980}, month={May}, pages={125–142}, collection={Ciba Foundation Symposium} } @inbook{hassan_fridovich_1980, place={San Diego, CA}, title={Superoxide Dismutases: Detoxication of a Free Radical}, ISBN={9780123800015}, url={http://dx.doi.org/10.1016/b978-0-12-380001-5.50021-9}, DOI={10.1016/b978-0-12-380001-5.50021-9}, booktitle={Enzymatic Basis of Detoxication}, publisher={Academic Press/Elsevier}, author={Hassan, H. Moustafa and Fridovich, Irwin}, editor={Jakoby, William B.`Editor}, year={1980}, pages={311–332} } @misc{hassan_1980, title={Superoxide and Superoxide Dismutases}, author={Hassan, H.}, year={1980}, month={Jun} } @misc{hassan_1979, title={Clinical Application of Superoxide Dismutase}, author={Hassan, H.}, year={1979}, month={Oct} } @article{hassan_fridovich_1979, title={Intracellular production of superoxide radical and of hydrogen peroxide by redox active compounds}, volume={196}, ISSN={0003-9861}, url={http://dx.doi.org/10.1016/0003-9861(79)90289-3}, DOI={10.1016/0003-9861(79)90289-3}, number={2}, journal={Archives of Biochemistry and Biophysics}, publisher={Elsevier BV}, author={Hassan, H.Moustafa and Fridovich, Irwin}, year={1979}, month={Sep}, pages={385–395} } @inbook{hassan_krinsky_morris_pfenning_schlegel_shilo_vogels_weser_wolfe_kuenen_1979, place={NY}, title={Oxygen toxicity}, booktitle={Strategy of Microbial Life in Extreme Environments}, publisher={Dahlem Konferenzen, Verlag Chemie}, author={Hassan, H.M. and Krinsky, N.I. and Morris, J.G. and Pfenning, N. and Schlegel, H. and Shilo, M. and Vogels, G.D. and Weser, U. and Wolfe, R. and Kuenen, J.G.}, editor={Shilo, M.Editor}, year={1979}, pages={223–241} } @article{hassan_fridovich_1979, title={Paraquat and Escherichia coli. Mechanism of production of extracellular superoxide radical.}, volume={254}, ISSN={0021-9258}, url={http://dx.doi.org/10.1016/s0021-9258(19)86598-5}, DOI={10.1016/s0021-9258(19)86598-5}, number={21}, journal={Journal of Biological Chemistry}, publisher={Elsevier BV}, author={Hassan, H.M. and Fridovich, I.}, year={1979}, month={Nov}, pages={10846–10852} } @article{fridovich_hassan_1979, title={Paraquat and the exacerbation of oxygen toxicity}, volume={4}, ISSN={0968-0004}, url={http://dx.doi.org/10.1016/0968-0004(79)90395-5}, DOI={10.1016/0968-0004(79)90395-5}, number={5}, journal={Trends in Biochemical Sciences}, publisher={Elsevier BV}, author={Fridovich, Irwin and Hassan, H.Moustafa}, year={1979}, month={May}, pages={113–115} } @inbook{hassan_fridovich_1979, place={NY}, title={Superoxide dismutase and its role for survival in the presence of oxygen}, booktitle={Strategy of Microbial Life in Extreme Environments}, publisher={DahlemKonferenzen, Verlag Chemie [Wiley-VCH]}, author={Hassan, H.M. and Fridovich, I.}, editor={Shilo, M.Editor}, year={1979}, pages={179 193} } @article{hassan_fridovich_1979, title={Superoxide, Hydrogen Peroxide, and Oxygen Tolerance of Oxygen-Sensitive Mutants of Escherichia coli}, volume={1}, ISSN={1058-4838 1537-6591}, url={http://dx.doi.org/10.1093/clinids/1.2.357}, DOI={10.1093/clinids/1.2.357}, number={2}, journal={Clinical Infectious Diseases}, publisher={Oxford University Press (OUP)}, author={Hassan, H. M. and Fridovich, I.}, year={1979}, month={Mar}, pages={357–369} } @article{hassan_fridovich_1978, title={Regulation and Role of Superoxide Dismutase}, volume={6}, ISSN={0300-5127 1470-8752}, url={http://dx.doi.org/10.1042/bst0060356}, DOI={10.1042/bst0060356}, number={2}, journal={Biochemical Society Transactions}, publisher={Portland Press Ltd.}, author={Hassan, H. Moustafa and Fridovich, Irwin}, year={1978}, month={Apr}, pages={356–361} } @article{hassan_fridovich_1978, title={Regulation of the synthesis of catalase and peroxidase in Escherichia coli.}, volume={253}, ISSN={0021-9258}, url={http://dx.doi.org/10.1016/s0021-9258(19)46953-6}, DOI={10.1016/s0021-9258(19)46953-6}, number={18}, journal={Journal of Biological Chemistry}, publisher={Elsevier BV}, author={Hassan, H.M. and Fridovich, I.}, year={1978}, month={Sep}, pages={6445–6450} } @misc{hassan_1978, title={Strategies of Microbial Life in Extreme Environment}, author={Hassan, H.}, year={1978}, month={Nov} } @article{hassan_fridovich_1978, title={Superoxide radical and the oxygen enhancement of the toxicity of paraquat in Escherichia coli.}, volume={253}, ISSN={0021-9258}, url={http://dx.doi.org/10.1016/s0021-9258(17)34373-9}, DOI={10.1016/s0021-9258(17)34373-9}, number={22}, journal={Journal of Biological Chemistry}, publisher={Elsevier BV}, author={Hassan, H.M. and Fridovich, I.}, year={1978}, month={Nov}, pages={8143–8148} } @article{hassan_pratt_1977, title={Biochemical and physiological properties of alkaline phosphatases in five isolates of marine bacteria}, volume={129}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.129.3.1607-1612.1977}, DOI={10.1128/jb.129.3.1607-1612.1977}, abstractNote={The alkaline phosphatase activities of five unique isolates of marine bacteria were found to be associated with the periplasmic space; however, the enzymes from these isolates differed with respect to their repressibility, the apparent number of isoenzymes, the necessity for Mg2 for activity, and the conditions required for their release. With three of the isolates, the enzyme was released when cells that had been washed in 0.5 M NaCl were suspended in sucrose; however, with the other two isolates, one required the additional presence of tris(hydroxymethyl)aminomethane and the other required the presence of lysozyme and ethylenediaminetetraacetic acid. In two isolates the activity was constitutive, in two it was partially repressed, and in one it was completely repressed by inorganic phosphate. The repression of activity was associated with corresponding changes of activity bands as seen by acrylamide gel electrophoresis.}, number={3}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H M and Pratt, D}, year={1977}, month={Mar}, pages={1607–1612} } @article{hassan_fridovich_1977, title={Enzymatic defenses against the toxicity of oxygen and of streptonigrin in Escherichia coli}, volume={129}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.129.3.1574-1583.1977}, DOI={10.1128/jb.129.3.1574-1583.1977}, abstractNote={Anaerobically grown Escherichia coli K-12 contain only one superoxide dismutase and that is the iron-containing isozyme found in the periplasmic space. Exposure to oxygen caused the induction of a manganese-containing superoxide dismutase and of another, previously undescribed, superoxide dismutase, as well as of catalase and peroxidase. These inductions differed in their responsiveness towards oxygen. Thus the very low levels of oxygen present in deep, static, aerobic cultures were enough for nearly maximal induction of the manganese-superoxide dismutase. In contrast, induction of the new superoxide dismutase, catalase, and peroxidase required the much higher levels of oxygen achieved in vigorously agitated aerobic cultures. Anaerobically grown cells showed a much greater oxygen enhancement of the lethality of streptonigrin than did aerobically grown cells, in accord with the proposal that streptonigrin can serve as an intracellular source of superoxide. Anaerobically grown cells in which enzyme inductions were prevented by puromycin were damaged by exposure to air. This damage was evidenced both as a decline in viable cell count and as structural abnormalities evident under an electron microscope.}, number={3}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H M and Fridovich, I}, year={1977}, month={Mar}, pages={1574–1583} } @article{hassan_fridovich_1977, title={Physiological function of superoxide dismutase in glucose-limited chemostat cultures of Escherichia coli}, volume={130}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.130.2.805-811.1977}, DOI={10.1128/jb.130.2.805-811.1977}, abstractNote={Conditions for continuous culture of Escherichia coli K-12 His- Thi- under glucose limitation were established. Both the capacity for respiration, at D greater than 0.2/h, and specific activity of superoxide dismutase increased as a function of specific growth rate, whereas peroxidase and catalase were either invariant with or inversely related to this growth rate. The abrupt increase in the availability of glucose, as a means of elevating the growth rate, was followed by an increase in superoxide dismutase, which reached a plateau before there was a significant increase in the growth rate. Thus, an increase in superoxide dismutase appeared to be a prerequisite for an increase in the rate of growth. Cells that had higher levels of superoxide dismutase, because of varying specific growth rates, were more resistant to the toxicity of hyperbaric oxygen. Superoxide dismutase thus behaved like an essential defense against the toxicity of oxygen. Sensitivity towards streptonigrin increased with specific growth rate in the range of 0.09 to 0.25/h but decreased with further increases in the growth rate. Since this antibiotic has been shown to shunt electrons to oxygen, with concomitant production of O2-, these results indicated a progressive deficiency of reducing power at growth rates below 0.25/h and a surfeit of reducing power with progressively greater protection against O2- by superoxide dismutase at growth rates greater than 0.25/h.}, number={2}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H M and Fridovich, I}, year={1977}, month={May}, pages={805–811} } @article{hassan_fridovich_1977, title={Regulation of superoxide dismutase synthesis in Escherichia coli: glucose effect}, volume={132}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.132.2.505-510.1977}, DOI={10.1128/jb.132.2.505-510.1977}, number={2}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H Moustafa and Fridovich, I}, year={1977}, month={Nov}, pages={505–510} } @article{hassan_fridovich_1977, title={Regulation of the synthesis of superoxide dismutase in Escherichia coli. Induction by methyl viologen.}, volume={252}, ISSN={0021-9258}, url={http://dx.doi.org/10.1016/s0021-9258(17)41019-2}, DOI={10.1016/s0021-9258(17)41019-2}, number={21}, journal={Journal of Biological Chemistry}, publisher={Elsevier BV}, author={Hassan, H.M. and Fridovich, I.}, year={1977}, month={Nov}, pages={7667–7672} } @article{hassan_1976, title={Diminution of outer membrane permeability by Mg2+ in a marine pseudomonad}, volume={125}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.125.3.910-915.1976}, DOI={10.1128/jb.125.3.910-915.1976}, number={3}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H Moustafa}, year={1976}, month={Mar}, pages={910–915} } @inbook{hassan_belyea_hassan_1975, title={Characterization of methane production from poultry manure}, booktitle={Managing Livestock Wastes}, publisher={American Society of Agricultural Engineers}, author={Hassan, H.M. and Belyea, D.A. and Hassan, A.E.}, year={1975}, pages={244–247, 251} } @inbook{hassan_hassan_smith_1975, place={Michigan, US}, title={Energy recovery and feed production from poultry waste}, booktitle={Energy, Agriculture and Waste Management}, publisher={Ann Arbor Science Publishers Inc.}, author={Hassan, A.E. and Hassan, H.M. and Smith, N.}, editor={Jewell, W.J.Editor}, year={1975}, pages={289–305} } @article{hassan_macleod_1975, title={Kinetics of Na+-dependent K+ ion transport in a marine pseudomonad}, volume={121}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.121.1.160-164.1975}, DOI={10.1128/jb.121.1.160-164.1975}, abstractNote={The effect of external Na plus concentration on the transport of K plus was studied using K plus-depleted cells of a marine pseudomonad. K plus transport was found to be a saturable process and requires Na plus. The initial rates for K plus transport over a range of external K plus concentrations were measured in suspensions containing various fixed concentrations of Na plus. Reciprocals of the initial rates for K plus transport were plotted against reciprocals of the external concentration of K plus or Na plus to yield two primary Lineweaver-Burk plots. The experimental data were found to fit bisubstrate enzyme kinetics, with a sequential type mechanism. However, the initial rate data did not allow distinction between ordered or random mechanisms. The results suggest that Na plus and K plus form a ternary complex with a specific K plus carrier molecule on the outer surface of the membrane prior to translocation and the release of K plus inside the cell.}, number={1}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H M and MacLeod, R A}, year={1975}, month={Jan}, pages={160–164} } @article{ingram_hassan_1975, title={The resistance of Pseudomonas aeruginosa to chloramphenicol}, volume={21}, ISSN={0008-4166 1480-3275}, url={http://dx.doi.org/10.1139/m75-177}, DOI={10.1139/m75-177}, abstractNote={ A strain of Pseudomonas aeruginosa, which was resistant to 400 μg/ml of chloramphenicol (CM), was isolated. The generation time of the resistant strain was the same in the presence or absence of CM and similar to that of the parent strain growing in the absence of chloramphenicol. Resistance is eliminated by treatment with acridine dyes, mitomycin C, and sodium dodecyl sulfate, suggesting that resistance may be expressed by a plasmid. The resistant strain does not produce the pigment pyocyanine and the addition of pyocyanine to this strain eliminates the resistance factor. A strain sensitive to CM was isolated. This strain does not produce the enzyme acetyl CoA: chloramphenicol transacetylase whereas the resistant strain does. The sensitive strain accumulates 14}, number={8}, journal={Canadian Journal of Microbiology}, publisher={Canadian Science Publishing}, author={Ingram, J. M. and Hassan, H. Moustafa}, year={1975}, month={Aug}, pages={1185–1191} } @article{ismail_el salam_hassan_1973, title={Effect of milk solids concentration on buffalo and cow soft cheese}, volume={21}, journal={Alexandria Journal of Agricultural Research}, author={Ismail, A.A. and El Salam, N.A. and Hassan, H.M.}, year={1973}, pages={383–389} } @article{ismail_el salam_hassan_1973, title={Some technological aspects of buffalo and cow soft cheese}, volume={21}, journal={Alexandria Journal of Agricultural Research}, author={Ismail, A.A. and El Salam, N.A. and Hassan, H.M.}, year={1973}, pages={391–396} } @article{hassan_collins_1969, title={Effects of Selected Food Additives on Growth of Pseudomonas fragi}, volume={52}, ISSN={0022-0302}, url={http://dx.doi.org/10.3168/jds.s0022-0302(69)86557-4}, DOI={10.3168/jds.s0022-0302(69)86557-4}, number={3}, journal={Journal of Dairy Science}, publisher={American Dairy Science Association}, author={Hassan, H. Moustafa and Collins, E.B.}, year={1969}, month={Mar}, pages={335–340} } @article{hassan_collins_1969, title={Molar Growth Yield of Streptococcus faecalis on Pyruvate}, volume={97}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.97.3.1496-1497.1969}, DOI={10.1128/jb.97.3.1496-1497.1969}, number={3}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H. Moustafa and Collins, E. B.}, year={1969}, month={Mar}, pages={1496–1497} } @article{collins_hassan_1969, title={Sensory and Shelf-Life Evaluations of Cottage Cheese Treated with Potassium Sorbate}, volume={52}, ISSN={0022-0302}, url={http://dx.doi.org/10.3168/jds.s0022-0302(69)86584-7}, DOI={10.3168/jds.s0022-0302(69)86584-7}, number={4}, journal={Journal of Dairy Science}, publisher={American Dairy Science Association}, author={Collins, E.B. and Hassan, H. Moustafa}, year={1969}, month={Apr}, pages={439–442} } @article{hassan_collins_1968, title={Molar Growth Yields of Certain Lactic Acid Bacteria as Influenced by Autolysis}, volume={96}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.96.1.117-125.1968}, DOI={10.1128/jb.96.1.117-125.1968}, number={1}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H. Moustafa and Collins, E. B.}, year={1968}, month={Jul}, pages={117–125} } @article{hassan_collins_1968, title={Role of Galactose or Glucose-1-Phosphate in Preventing the Lysis of Streptococcus diacetilactis}, volume={95}, ISSN={0021-9193 1098-5530}, url={http://dx.doi.org/10.1128/jb.95.2.592-602.1968}, DOI={10.1128/jb.95.2.592-602.1968}, number={2}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Hassan, H. Moustafa and Collins, E. B.}, year={1968}, month={Feb}, pages={592–602} }