@article{marinello_gillera_han_richardson_st armour_horman_patisaul_2023, title={Gestational exposure to FireMaster® 550 (FM 550) disrupts the placenta-brain axis in a socially monogamous rodent species, the prairie vole (<i>Microtus ochrogaster</i>)}, volume={576}, ISSN={["1872-8057"]}, DOI={10.1016/j.mce.2023.112041}, abstractNote={Gestational flame retardant (FR) exposure has been linked to heightened risk of neurodevelopmental disorders, but the mechanisms remain largely unknown. Historically, toxicologists have relied on traditional, inbred rodent models, yet those do not always best model human vulnerability or biological systems, especially social systems. Here we used prairie voles (Microtus ochrogaster), a monogamous and bi-parental rodent, leveraged for decades to decipher the underpinnings of social behaviors, to examine the impact of fetal FR exposure on gene targets in the mid-gestational placenta and fetal brain. We previously established gestational exposure to the commercial mixture Firemaster 550 (FM 550) impairs sociality, particularly in males. FM 550 exposure disrupted placental monoamine production, particularly serotonin, and genes required for axon guidance and cellular respiration in the fetal brains. Effects were dose and sex specific. These data provide insights on the mechanisms by which FRs impair neurodevelopment and later in life social behaviors.}, journal={MOLECULAR AND CELLULAR ENDOCRINOLOGY}, author={Marinello, William P. and Gillera, Sagi Enicole A. and Han, Yoonhee and Richardson, Jason R. and St Armour, Genevieve and Horman, Brian M. and Patisaul, Heather B.}, year={2023}, month={Oct} }
 @article{newell_kapps_cai_rai_st armour_horman_rock_witchey_greenbaum_patisaul_2023, title={Maternal organophosphate flame retardant exposure alters the developing mesencephalic dopamine system in fetal rat}, volume={191}, ISSN={["1096-0929"]}, DOI={10.1093/toxsci/kfac137}, abstractNote={Abstract}, number={2}, journal={TOXICOLOGICAL SCIENCES}, author={Newell, Andrew J. and Kapps, Victoria A. and Cai, Yuheng and Rai, Mani Ratnam and St Armour, Genevieve and Horman, Brian M. and Rock, Kylie D. and Witchey, Shannah K. and Greenbaum, Alon and Patisaul, Heather B.}, year={2023}, month={Feb}, pages={357–373} }
 @article{witchey_doyle_fredenburg_st armour_horman_odenkirk_aylor_baker_patisaul_2022, title={Impacts of Gestational FireMaster 550 (FM 550) Exposure on the Neonatal Cortex are Sex Specific and Largely Attributable to the Organophosphate Esters}, volume={9}, ISSN={["1423-0194"]}, DOI={10.1159/000526959}, abstractNote={<b><i>Introduction:</i></b> Flame retardants (FRs) are common bodily and environmental pollutants, creating concern about their potential toxicity. We and others have found that the commercial mixture FireMaster® 550 (FM 550) or its individual brominated (BFR) and organophosphate ester (OPFR) components are potential developmental neurotoxicants. Using Wistar rats, we previously reported that developmental exposure to FM 550 or its component classes produced sex- and compound-specific effects on adult socioemotional behaviors. The underlying mechanisms driving the behavioral phenotypes are unknown. <b><i>Methods:</i></b> To further mechanistic understanding, here we conducted transcriptomics in parallel with a novel lipidomics approach using cortical tissues from newborn siblings of the rats in the published behavioral study. Inclusion of lipid composition is significant because it is rarely examined in developmental neurotoxicity studies. Pups were gestationally exposed via oral dosing to the dam to FM 550 or the BFR or OPFR components at environmentally relevant doses. <b><i>Results:</i></b> The neonatal cortex was highly sexually dimorphic in lipid and transcriptome composition, and males were more significantly impacted by FR exposure. Multiple adverse modes of action for the BFRs and OPFRs on neurodevelopment were identified, with the OPFRs being more disruptive than the BFRs via multiple mechanisms including dysregulation of mitochondrial function and disruption of cholinergic and glutamatergic systems. Disrupted mitochondrial function by environmental factors has been linked to a higher risk of autism spectrum disorders and neurodegenerative disorders. Impacted lipid classes included ceramides, sphingomyelins, and triacylglycerides. Robust ceramide upregulation in the OPFR females could suggest a heightened risk of brain metabolic disease. <b><i>Conclusions:</i></b> This study reveals multiple mechanisms by which the components of a common FR mixture are developmentally neurotoxic and that the OPFRs may be the compounds of greatest concern. }, journal={NEUROENDOCRINOLOGY}, author={Witchey, S. K. and Doyle, M. G. and Fredenburg, J. D. and St Armour, G. and Horman, B. and Odenkirk, M. T. and Aylor, D. L. and Baker, E. S. and Patisaul, H. B.}, year={2022}, month={Sep} }
 @article{rock_st armour_horman_phillips_ruis_stewart_jima_muddiman_stapleton_patisaul_2020, title={Effects of Prenatal Exposure to a Mixture of Organophosphhate Flame Ritardants on Placental Gene Expression and Serotonergic Innervaion in the Fetal Rat Brain}, volume={176}, ISSN={["1096-0929"]}, DOI={10.1093/toxsci/kfaa046}, abstractNote={Abstract}, number={1}, journal={TOXICOLOGICAL SCIENCES}, author={Rock, Kylie D. and St Armour, Genevieve and Horman, Brian and Phillips, Allison and Ruis, Matthew and Stewart, Allison K. and Jima, Dereje and Muddiman, David C. and Stapleton, Heather M. and Patisaul, Heather B.}, year={2020}, month={Jul}, pages={203–223} }
 @article{everett_huang_zhou_carbone_lyman_arya_geisz_ma_morgante_st armour_et al._2020, title={Gene expression networks in the Drosophila Genetic Reference Panel}, volume={30}, ISSN={["1549-5469"]}, DOI={10.1101/gr.257592.119}, abstractNote={A major challenge in modern biology is to understand how naturally occurring variation in DNA sequences affects complex organismal traits through networks of intermediate molecular phenotypes. This question is best addressed in a genetic mapping population in which all molecular polymorphisms are known and for which molecular endophenotypes and complex traits are assessed on the same genotypes. Here, we performed deep RNA sequencing of 200 Drosophila Genetic Reference Panel inbred lines with complete genome sequences and for which phenotypes of many quantitative traits have been evaluated. We mapped expression quantitative trait loci for annotated genes, novel transcribed regions, transposable elements, and microbial species. We identified host variants that affect expression of transposable elements, independent of their copy number, as well as microbiome composition. We constructed sex-specific expression quantitative trait locus regulatory networks. These networks are enriched for novel transcribed regions and target genes in heterochromatin and euchromatic regions of reduced recombination, as well as genes regulating transposable element expression. This study provides new insights regarding the role of natural genetic variation in regulating gene expression and generates testable hypotheses for future functional analyses.}, number={3}, journal={GENOME RESEARCH}, author={Everett, Logan J. and Huang, Wen and Zhou, Shanshan and Carbone, Mary Anna and Lyman, Richard F. and Arya, Gunjan H. and Geisz, Matthew S. and Ma, Junwu and Morgante, Fabio and St Armour, Genevieve and et al.}, year={2020}, month={Mar}, pages={485–496} }
 @article{garlapow_everett_zhou_gearhart_fay_huang_morozova_arya_turlapati_st armour_et al., title={Genetic and genomic response to selection for food consumption in Drosophila melanogaster}, volume={47}, number={2}, journal={Behavior Genetics}, author={Garlapow, M. E. and Everett, L. J. and Zhou, S. S. and Gearhart, A. W. and Fay, K. A. and Huang, W. and Morozova, T. V. and Arya, G. H. and Turlapati, L. and St Armour, G. and et al.}, pages={227–243} }
 @article{shorter_dembeck_everett_morozova_arya_turlapati_st armour_schal_mackay_anholt, title={Obp56h modulates mating behavior in Drosophila melanogaster}, volume={6}, number={10}, journal={G3-Genes Genomes Genetics}, author={Shorter, J. R. and Dembeck, L. M. and Everett, L. J. and Morozova, T. V. and Arya, G. H. and Turlapati, L. and St Armour, G. E. and Schal, C. and Mackay, T. F. C. and Anholt, R. R. H.}, pages={3335–3342} }