@article{meurs_montgomery_friedenberg_williams_gilger_2021, title={A defect in the NOG gene increases susceptibility to spontaneous superficial chronic corneal epithelial defects (SCCED) in boxer dogs}, volume={17}, ISSN={1746-6148}, url={http://dx.doi.org/10.1186/s12917-021-02955-1}, DOI={10.1186/s12917-021-02955-1}, abstractNote={Abstract}, number={1}, journal={BMC Veterinary Research}, publisher={Springer Science and Business Media LLC}, author={Meurs, Kathryn M. and Montgomery, Keith and Friedenberg, Steven G. and Williams, Brian and Gilger, Brian C.}, year={2021}, month={Jul} } @article{meurs_williams_deprospero_friedenberg_malarkey_ezzell_keene_adin_defrancesco_tou_2021, title={A deleterious mutation in the ALMS1 gene in a naturally occurring model of hypertrophic cardiomyopathy in the Sphynx cat}, volume={16}, ISSN={["1750-1172"]}, DOI={10.1186/s13023-021-01740-5}, abstractNote={Abstract}, number={1}, journal={ORPHANET JOURNAL OF RARE DISEASES}, author={Meurs, Kathryn M. and Williams, Brian G. and DeProspero, Dylan and Friedenberg, Steven G. and Malarkey, David E. and Ezzell, J. Ashley and Keene, Bruce W. and Adin, Darcy B. and DeFrancesco, Teresa C. and Tou, Sandra}, year={2021}, month={Feb} } @article{hedgespeth_birkenheuer_friedenberg_olby_meurs_2021, title={A novel missense mutation of the NAT10 gene in a juvenile Schnauzer dog with chronic respiratory tract infections}, volume={35}, ISSN={["1939-1676"]}, url={https://doi.org/10.1111/jvim.16100}, DOI={10.1111/jvim.16100}, abstractNote={Abstract}, number={3}, journal={JOURNAL OF VETERINARY INTERNAL MEDICINE}, author={Hedgespeth, Barry A. and Birkenheuer, Adam J. and Friedenberg, Steven G. and Olby, Natasha J. and Meurs, Kathryn M.}, year={2021}, month={May}, pages={1542–1546} } @article{herrmann_linder_meurs_friedenberg_cullen_olby_bizikova_2021, title={Canine junctional epidermolysis bullosa due to a novel mutation in LAMA3 with severe upper respiratory involvement}, volume={32}, ISSN={["1365-3164"]}, url={https://doi.org/10.1111/vde.12972}, DOI={10.1111/vde.12972}, abstractNote={BackgroundJunctional epidermolysis bullosa (JEB) is a group of congenital blistering skin diseases characterized by clefting through the lamina lucida of the basement membrane zone.}, number={4}, journal={VETERINARY DERMATOLOGY}, author={Herrmann, Ina and Linder, Keith E. and Meurs, Kathryn M. and Friedenberg, Steven G. and Cullen, Jonah and Olby, Natasha and Bizikova, Petra}, year={2021}, month={Aug}, pages={379-+} } @article{williams_friedenberg_keene_tou_defrancesco_meurs_2021, title={Use of whole genome analysis to identify shared genomic variants across breeds in canine mitral valve disease}, volume={6}, ISSN={["1432-1203"]}, DOI={10.1007/s00439-021-02297-w}, abstractNote={Familial mitral valve prolapse in human beings has been associated with several genetic variants; however, in most cases, a known variant has not been identified. Dogs also have a naturally occurring form of familial mitral valve disease (MMVD) with similarities to the human disease. A shared genetic background and clinical phenotype of this disease in some dog breeds has indicated that the disease may share a common genetic cause. We evaluated DNA from 50 affected dogs from five different dog breeds in a whole genome sequencing approach to identify shared variants across and within breeds that could be associated with MMVD. No single causative genetic mutation was found from the 50 dogs with MMVD. Ten variants were identified in 37/50 dogs around and within the MED13L gene. These variants were no longer associated with MMVD when evaluated with a larger cohort including both affected and unaffected dogs. No high/moderate impact variants were identified in 10/10 miniature poodles, one was identified in 10/10 Yorkshire Terriers and 10/10 dachshunds, respectively, 14 were identified in 10/10 Miniature schnauzers, and 19 in 10/10 CKCS. Only one of these could be associated with the cardiac valve (Chr12:36801705, COL12A1; CKCS) but when evaluated in an additional 100 affected CKCS the variant was only identified in 84/100 affected dogs, perhaps indicating genetic heterogeneity in this disease. Our findings indicate that development of MMVD in the dog may be related to a combination of genetic and environmental factors that impact specific molecular pathways rather than a single shared genetic variant across or within breeds.}, journal={HUMAN GENETICS}, author={Williams, Brian and Friedenberg, Steven G. and Keene, Bruce W. and Tou, Sandy P. and DeFrancesco, Teresa C. and Meurs, Kathryn M.}, year={2021}, month={Jun} } @article{olby_friedenberg_meurs_deprospero_guevar_lau_yost_guo_shelton_2020, title={A mutation in MTM1 causes X-Linked myotubular myopathy in Boykin spaniels}, volume={30}, ISSN={0960-8966}, url={http://dx.doi.org/10.1016/j.nmd.2020.02.021}, DOI={10.1016/j.nmd.2020.02.021}, abstractNote={The purpose of this study was to report the findings of clinical and genetic evaluation of a 3-month old male Boykin spaniel (the proband) that presented with progressive weakness. The puppy underwent a physical and neurological examination, serum biochemistry and complete blood cell count, electrophysiological testing, muscle biopsy and whole genome sequencing. Clinical evaluation revealed generalized neuromuscular weakness with tetraparesis and difficulty holding the head up and a dropped jaw. There was diffuse spontaneous activity on electromyography, most severe in the cervical musculature. Nerve conduction studies were normal, the findings were interpreted as consistent with a myopathy. Skeletal muscle was grossly abnormal on biopsy and there were necklace fibers and abnormal triad structure localization on histopathology, consistent with myotubular myopathy. Whole genome sequencing revealed a premature stop codon in exon 13 of MTM1 (ChrX: 118,903,496 C > T, c.1467C>T, p.Arg512X). The puppy was humanely euthanized at 5 months of age. The puppy's dam was heterozygous for the variant, and 3 male puppies from a subsequent litter all of which died by 2 weeks of age were hemizygous for the variant. This naturally occurring mutation in Boykin spaniels causes a severe form of X-linked myotubular myopathy, comparable to the human counterpart.}, number={5}, journal={Neuromuscular Disorders}, publisher={Elsevier BV}, author={Olby, Natasha J. and Friedenberg, Steven and Meurs, Kathryn and DeProspero, Dylan and Guevar, Julien and Lau, Jeanie and Yost, Oriana and Guo, Ling T. and Shelton, G. Diane}, year={2020}, month={Mar}, pages={353–359} } @article{meurs_friedenberg_kolb_saripalli_tonino_woodruff_olby_keene_adin_yost_et al._2019, title={A missense variant in the titin gene in Doberman pinscher dogs with familial dilated cardiomyopathy and sudden cardiac death}, volume={138}, ISSN={0340-6717 1432-1203}, url={http://dx.doi.org/10.1007/s00439-019-01973-2}, DOI={10.1007/s00439-019-01973-2}, abstractNote={The dog provides a large animal model of familial dilated cardiomyopathy for the study of important aspects of this common familial cardiovascular disease. We have previously demonstrated a form of canine dilated cardiomyopathy in the Doberman pinscher breed that is inherited as an autosomal dominant trait and is associated with a splice site variant in the pyruvate dehydrogenase kinase 4 (PDK4) gene, however, genetic heterogeneity exists in this species as well and not all affected dogs have the PDK4 variant. Whole genome sequencing of a family of Doberman pinchers with dilated cardiomyopathy and sudden cardiac death without the PDK4 variant was performed. A pathologic missense variant in the titin gene located in an immunoglobulin-like domain in the I-band spanning region of the molecule was identified and was highly associated with the disease (p < 0.0001). We demonstrate here the identification of a variant in the titin gene highly associated with the disease in this spontaneous canine model of dilated cardiomyopathy. This large animal model of familial dilated cardiomyopathy shares many similarities with the human disease including mode of inheritance, clinical presentation, genetic heterogeneity and a pathologic variant in the titin gene. The dog is an excellent model to improve our understanding of the genotypic phenotypic relationships, penetrance, expression and the pathophysiology of variants in the titin gene.}, number={5}, journal={Human Genetics}, publisher={Springer Science and Business Media LLC}, author={Meurs, Kathryn M. and Friedenberg, Steven G. and Kolb, Justin and Saripalli, Chandra and Tonino, Paola and Woodruff, Kathleen and Olby, Natasha J. and Keene, Bruce W. and Adin, Darcy B. and Yost, Oriana L. and et al.}, year={2019}, month={Feb}, pages={515–524} } @article{friedenberg_brown_meurs_law_2018, title={Lymphocyte Subsets in the Adrenal Glands of Dogs With Primary Hypoadrenocorticism}, volume={55}, ISSN={["1544-2217"]}, DOI={10.1177/0300985816684914}, abstractNote={ Primary hypoadrenocorticism, or Addison’s disease, is an autoimmune condition common in certain dog breeds that leads to the destruction of the adrenal cortex and a clinical syndrome involving anorexia, gastrointestinal upset, and electrolyte imbalances. Previous studies have demonstrated that this destruction is strongly associated with lymphocytic-plasmacytic inflammation and that the lymphocytes are primarily T cells. In this study, we used both immunohistochemistry and in situ hybridization to characterize the T-cell subtypes involved. We collected postmortem specimens of 5 dogs with primary hypoadrenocorticism and 2 control dogs and, using the aforementioned techniques, showed that the lymphocytes are primarily CD4+ rather than CD8+. These findings have important implications for improving our understanding of the pathogenesis and in searching for the underlying causative genetic polymorphisms. }, number={1}, journal={VETERINARY PATHOLOGY}, author={Friedenberg, S. G. and Brown, D. L. and Meurs, K. M. and Law, J. McHugh}, year={2018}, month={Jan}, pages={177–181} } @inproceedings{talley_zimmer_bolotnov_2016, title={Coalescence prevention algorithm for level set method}, DOI={10.1115/fedsm2016-7608}, abstractNote={The application of interface tracking methods to bubbly flow modeling has grown in recent years due to improvements in computing performance and development of more efficient solvers. However, the standard formulation of most interface tracking methods is not designed to physically handle the interface interactions at reasonable grid sizes. Regardless of the method used, a high grid resolution is required in the liquid film region in order to properly model drainage process during bubble interaction, which in certain conditions prevents the coalescence. This makes large scale (many bubbles) simulations unaffordable. One of the popular interface tracking approached is the level-set (LS) method. To simulate realistic bubble coalescence behavior in the LS method an algorithm with the capability of delaying or preventing the process of multiple simultaneous coalescence events has been developed.}, booktitle={Proceedings of the asme fluids engineering division summer meeting, 2016, vol 1b}, author={Talley, M. L. and Zimmer, M. D. and Bolotnov, I. A.}, year={2016} } @article{friedenberg_strange_guillaumin_vangundy_crouser_papenfuss_2016, title={Effect of disrupted mitochondria as a source of damage-associated molecular patterns on the production of tumor necrosis factor alpha by splenocytes from dogs}, volume={77}, number={6}, journal={American Journal of Veterinary Research}, author={Friedenberg, S. G. and Strange, H. R. and Guillaumin, J. and VanGundy, Z. C. and Crouser, E. D. and Papenfuss, T. L.}, year={2016}, pages={604–612} } @article{friedenberg_meurs_2016, title={Genotype imputation in the domestic dog}, volume={27}, ISSN={["1432-1777"]}, DOI={10.1007/s00335-016-9636-9}, abstractNote={Application of imputation methods to accurately predict a dense array of SNP genotypes in the dog could provide an important supplement to current analyses of array-based genotyping data. Here, we developed a reference panel of 4,885,283 SNPs in 83 dogs across 15 breeds using whole genome sequencing. We used this panel to predict the genotypes of 268 dogs across three breeds with 84,193 SNP array-derived genotypes as inputs. We then (1) performed breed clustering of the actual and imputed data; (2) evaluated several reference panel breed combinations to determine an optimal reference panel composition; and (3) compared the accuracy of two commonly used software algorithms (Beagle and IMPUTE2). Breed clustering was well preserved in the imputation process across eigenvalues representing 75 % of the variation in the imputed data. Using Beagle with a target panel from a single breed, genotype concordance was highest using a multi-breed reference panel (92.4 %) compared to a breed-specific reference panel (87.0 %) or a reference panel containing no breeds overlapping with the target panel (74.9 %). This finding was confirmed using target panels derived from two other breeds. Additionally, using the multi-breed reference panel, genotype concordance was slightly higher with IMPUTE2 (94.1 %) compared to Beagle; Pearson correlation coefficients were slightly higher for both software packages (0.946 for Beagle, 0.961 for IMPUTE2). Our findings demonstrate that genotype imputation from SNP array-derived data to whole genome-level genotypes is both feasible and accurate in the dog with appropriate breed overlap between the target and reference panels.}, number={9-10}, journal={MAMMALIAN GENOME}, author={Friedenberg, S. G. and Meurs, K. M.}, year={2016}, month={Oct}, pages={485–494} } @article{friedenberg_chdid_keene_sherry_motsinger-reif_meurs_2016, title={Use of RNA-seq to identify cardiac genes and gene pathways differentially expressed between dogs with and without dilated cardiomyopathy}, volume={77}, ISSN={["1943-5681"]}, DOI={10.2460/ajvr.77.7.693}, abstractNote={Abstract}, number={7}, journal={AMERICAN JOURNAL OF VETERINARY RESEARCH}, author={Friedenberg, Steven G. and Chdid, Lhoucine and Keene, Bruce and Sherry, Barbara and Motsinger-Reif, Alison and Meurs, Kathryn M.}, year={2016}, month={Jul}, pages={693–699} } @article{meurs_weidman_rosenthal_lahmers_friedenberg_2016, title={Ventricular arrhythmias in Rhodesian Ridgebacks with a family history of sudden death and results of a pedigree analysis for potential inheritance patterns}, volume={248}, ISSN={["1943-569X"]}, DOI={10.2460/javma.248.10.1135}, abstractNote={Abstract}, number={10}, journal={JAVMA-JOURNAL OF THE AMERICAN VETERINARY MEDICAL ASSOCIATION}, author={Meurs, Kathryn M. and Weidman, Jess A. and Rosenthal, Steven L. and Lahmers, Kevin K. and Friedenberg, Steven G.}, year={2016}, month={May}, pages={1135–1138} } @article{friedenberg_buhrman_chdid_olby_olivry_guillaumin_o’toole_goggs_kennedy_rose_et al._2015, title={Evaluation of a DLA-79 allele associated with multiple immune-mediated diseases in dogs}, volume={68}, ISSN={0093-7711 1432-1211}, url={http://dx.doi.org/10.1007/s00251-015-0894-6}, DOI={10.1007/s00251-015-0894-6}, abstractNote={Immune-mediated diseases are common and life-threatening disorders in dogs. Many canine immune-mediated diseases have strong breed predispositions and are believed to be inherited. However, the genetic mutations that cause these diseases are mostly unknown. As many immune-mediated diseases in humans share polymorphisms among a common set of genes, we conducted a candidate gene study of 15 of these genes across four immune-mediated diseases (immune-mediated hemolytic anemia, immune-mediated thrombocytopenia, immune-mediated polyarthritis (IMPA), and atopic dermatitis) in 195 affected and 206 unaffected dogs to assess whether causative or predictive polymorphisms might exist in similar genes in dogs. We demonstrate a strong association (Fisher’s exact p = 0.0004 for allelic association, p = 0.0035 for genotypic association) between two polymorphic positions (10 bp apart) in exon 2 of one allele in DLA-79, DLA-79*001:02, and multiple immune-mediated diseases. The frequency of this allele was significantly higher in dogs with immune-mediated disease than in control dogs (0.21 vs. 0.12) and ranged from 0.28 in dogs with IMPA to 0.15 in dogs with atopic dermatitis. This allele has two non-synonymous substitutions (compared with the reference allele, DLA-79*001:01), resulting in F33L and N37D amino acid changes. These mutations occur in the peptide-binding pocket of the protein, and based upon our computational modeling studies, are likely to affect critical interactions with the peptide N-terminus. Further studies are warranted to confirm these findings more broadly and to determine the specific mechanism by which the identified variants alter canine immune system function.}, number={3}, journal={Immunogenetics}, publisher={Springer Science and Business Media LLC}, author={Friedenberg, Steven G. and Buhrman, Greg and Chdid, Lhoucine and Olby, Natasha J. and Olivry, Thierry and Guillaumin, Julien and O’Toole, Theresa and Goggs, Robert and Kennedy, Lorna J. and Rose, Robert B. and et al.}, year={2015}, month={Dec}, pages={205–217} } @article{friedenberg_brooks_monnig_cooper_2013, title={Successful treatment of a dog with massive 5-fluorouracil toxicosis}, volume={23}, number={6}, journal={Journal of Veterinary Emergency and Critical Care (San Antonio, Tex. : 2001)}, author={Friedenberg, S. G. and Brooks, A. C. and Monnig, A. A. and Cooper, E. S.}, year={2013}, pages={643–647} } @article{friedenberg_meurs_mackay, title={Evaluation of artificial selection in Standard Poodles using whole-genome sequencing}, volume={27}, number={11-12}, journal={Mammalian Genome}, author={Friedenberg, S. G. and Meurs, K. M. and Mackay, T. F. C.}, pages={599–609} }