Kiran K. Soma

PhD

Affiliate Investigator, BC Children's Hospital

Steroids are powerful molecules that regulate a wide variety of physiological processes. My research examines how steroids are synthesized and regulated in the body.

Academic Affiliations

  • Professor, , Department of Psychology, Faculty of Arts, University of British Columbia
  • Research Theme: Healthy Starts
  • Research Group(s): Origins of Child Health and Disease

Contact Information

Assistant

Lisa-Marie Candeias

lcandeias@phsa.ca

Location

Room F154, 2136 West Mall, Vancouver, BC, Canada, V6T 1Z4

Neonatal lipopolysaccharide administration causes long-term changes in mouse immunosteroids

American Journal of Physiology-Regulatory, Integrative and Comparative Physiology

Melody Salehzadeh and Anna Mazurenko and Kiran K. Soma

DOI: 10.1152/ajpregu.00135.2025

02 / 2026

Estrogen profiling in blood and brain: Effects of season and an aggressive interaction in a songbird

PLOS One

Cecilia Jalabert and Irfan Ahmad Bhat and Megan Q. Liu and Kiran K. Soma

DOI: 10.1371/journal.pone.0326727

12 / 2025

Lipopolysaccharide differentially alters systemic and brain glucocorticoid levels in neonatal and adult mice

Journal of Neuroendocrinology

Hamden, J.E. and Salehzadeh, M. and Bajaj, H. and Li, M.X. and Soma, K.K.

DOI: 10.1111/jne.13481

Prenatal exposure to dietary levels of glyphosate disrupts metabolic, immune, and behavioral markers across generations in mice

Science of the Total Environment

Barnett, J.A. and Josephson, J.K. and Yuzbashian, E. and Haskey, N. and Hart, M.M. and Soma, K.K. and Verdugo, A. and McComb, C.J. and Bandy, M.L. and Ghosh, S. and Letef, C. and Copp, A. and Ishida, R. and Gibon, J. and Ye, J. and Giebelhaus, R.T. and Murch, S.J. and Jung, M.M. and Gibson, D.L.

DOI: 10.1016/j.scitotenv.2025.180437

Maternal sucrose consumption alters steroid levels in the mother, placenta and fetus

Journal of Endocrinology

Seib, D.R. and Jung, M.M. and Soma, K.K.

DOI: 10.1530/JOE-24-0238

Prenatal exposure to dietary levels of glyphosate disrupts metabolic, immune, and behavioral markers across generations in mice.

Biorxiv

Barnett, J.A. and Josephson, J.K. and Haskey, N. and Hart, M.M. and Soma, K.K. and Verdugo, A. and McComb, C.J. and Bandy, M.L. and Ghosh, S. and Letef, C. and Copp, A. and Ishida, R. and Yuzbashian, E. and Gibon, J. and Ye, J. and Giebelhaus, R.T. and Murch, S.J. and Jung, M.M. and Gibson, D.L.

DOI: 10.1101/2024.08.27.609990

Steroid profiling in human primary teeth via liquid chromatography-tandem mass spectrometry for long-term retrospective steroid measurement

PLoS ONE

Wu, R.S. and Hamden, J.E. and Salehzadeh, M. and Li, M.X. and Poudel, A. and Schmidt, K.L. and Kobor, M.S. and Soma, K.K.

DOI: 10.1371/journal.pone.0309478

Evolution of a novel adrenal cell type that promotes parental care

Nature

Niepoth, N. and Merritt, J.R. and Uminski, M. and Lei, E. and Esquibies, V.S. and Bando, I.B. and Hernandez, K. and Gebhardt, C. and Wacker, S.A. and Lutzu, S. and Poudel, A. and Soma, K.K. and Rudolph, S. and Bendesky, A.

DOI: 10.1038/s41586-024-07423-y

An Aggressive Interaction Rapidly Increases Brain Androgens in a Male Songbird during the Non-breeding Season

Journal of Neuroscience

Jalabert, C. and Gray, S.L. and Soma, K.K.

DOI: 10.1523/JNEUROSCI.1095-23.2024

Effect of a Territorial Challenge on the Steroid Profile of a Juvenile Songbird

Neuroscience

Gray, S.L. and Lam, E.K. and Henao-Diaz, L.F. and Jalabert, C. and Soma, K.K.

DOI: 10.1016/j.neuroscience.2024.01.008

Brain and circulating steroids in an electric fish: Relevance for non-breeding aggression

PLoS ONE

Zubizarreta, L. and Jalabert, C. and Silva, A.C. and Soma, K.K. and Quintana, L.

DOI: 10.1371/journal.pone.0289461

Neurosteroids and the mesocorticolimbic system

Neuroscience and Biobehavioral Reviews

Seib, D.R. and Tobiansky, D.J. and Meitzen, J. and Floresco, S.B. and Soma, K.K.

DOI: 10.1016/j.neubiorev.2023.105356

Measurement of Steroids in the Placenta, Maternal Serum, and Fetal Serum in Humans, Rats, and Mice: A Technical Note

Separations

Price, H.R. and Jalabert, C. and Seib, D.R. and Ma, C. and Lai, D. and Soma, K.K. and Collier, A.C.

DOI: 10.3390/separations10040221

Maternal sucrose consumption alters steroid levels in the mother, placenta, and fetus

Biorxiv

Seib, D.R. and Jung, M.M. and Soma, K.K.

DOI: 10.1101/2023.10.31.565065

Androgen synthesis inhibition increases behavioural flexibility and mPFC tyrosine hydroxylase in gonadectomized male rats

Journal of Neuroendocrinology

Tomm, R.J. and Seib, D.R. and Kachkovski, G.V. and Schweitzer, H.R. and Tobiansky, D.J. and Floresco, S.B. and Soma, K.K.

DOI: 10.1111/jne.13128

Isoflurane stress induces region-specific glucocorticoid levels in neonatal mouse brain

Journal of Endocrinology

Hamden, J.E. and Gray, K.M. and Salehzadeh, M. and Soma, K.K.

DOI: 10.1530/JOE-22-0049

Ultrasensitive Quantification of Multiple Estrogens in Songbird Blood and Microdissected Brain by LC-MS/MS

eNeuro

Jalabert, C. and Shock, M.A. and Ma, C. and Bootsma, T.J. and Liu, M.Q. and Soma, K.K.

DOI: 10.1523/eneuro.0037-22.2022

Steroid profiling in brain and plasma of adult zebra finches following traumatic brain injury

Journal of Neuroendocrinology

Gray, S.L. and Soma, K.K. and Duncan, K.A.

DOI: 10.1111/jne.13151

Editorial: Recent Progress and Perspectives in Neurosteroid Research

Frontiers in Endocrinology

Vaudry, H. and Ubuka, T. and Soma, K.K. and Tsutsui, K.

DOI: 10.3389/fendo.2022.951990

Differential effects of lipopolysaccharide on cognition, corticosterone and cytokines in socially-housed vs isolated male rats

Behavioural Brain Research

Russell, B. and Hrelja, K.M. and Adams, W.K. and Zeeb, F.D. and Taves, M.D. and Kaur, S. and Soma, K.K. and Winstanley, C.A.

DOI: 10.1016/j.bbr.2022.114000

Glucocorticoid Production in Lymphoid Organs: Acute Effects of Lipopolysaccharide in Neonatal and Adult Mice

Endocrinology

Salehzadeh, M. and Hamden, J.E. and Li, M.X. and Bajaj, H. and Wu, R.S. and Soma, K.K.

DOI: 10.1210/endocr/bqab244

Steroid profiling of glucocorticoids in microdissected mouse brain across development.

Developmental neurobiology

Hamden JE and Gray KM and Salehzadeh M and Kachkovski GV and Forys BJ and Ma C and Austin SH and Soma KK

DOI: 10.1002/dneu.22808 PubMed: 33420760

01 / 2021

Glucocorticoid production in the thymus and brain: Immunosteroids and neurosteroids

Brain, Behavior, and Immunity - Health

Salehzadeh, M. and Soma, K.K.

DOI: 10.1016/j.bbih.2021.100352

Androgen synthesis inhibition but not gonadectomy reduces persistence during strategy set-shifting and reversal learning in male rats

bioRxiv

Tomm, R.J. and Seib, D.R. and Kachkovski, G.V. and Schweitzer, H.R. and Tobiansky, D.J. and Floresco, S.B. and Soma, K.K.

DOI: 10.1101/2021.08.11.456005

Isoflurane stress induces glucocorticoid production in mouse lymphoid organs

Journal of Endocrinology

Hamden, J.E. and Salehzadeh, M. and Gray, K.M. and Forys, B.J. and Soma, K.K.

DOI: 10.1530/JOE-21-0154

Sex-specific effects of neonatal oral sucrose treatment on growth and liver choline and glucocorticoid metabolism in adulthood

American journal of physiology. Regulatory, integrative and comparative physiology

Ramrez-Contreras, C.Y. and Mehran, A.E. and Salehzadeh, M. and Mussai, E.-X. and Miller, J.W. and Smith, A. and Ranger, M. and Holsti, L. and Soma, K.K. and Devlin, A.M.

DOI: 10.1152/ajpregu.00091.2021

Maternal sucrose consumption alters behaviour and steroids in adult rat offspring

The Journal of endocrinology

Tobiansky, D.J. and Kachkovski, G.V. and Enos, R.T. and Schmidt, K.L. and Murphy, E.A. and Floresco, S.B. and Soma, K.K.

DOI: 10.1530/JOE-21-0166

Neuroendocrine Mechanisms Underlying Non-breeding Aggression: Common Strategies Between Birds and Fish

Frontiers in Neural Circuits

Quintana, L. and Jalabert, C. and Fokidis, H.B. and Soma, K.K. and Zubizarreta, L.

DOI: 10.3389/fncir.2021.716605

SteroidXtract: Deep Learning-Based Pattern Recognition Enables Comprehensive and Rapid Extraction of Steroid-Like Metabolic Features for Automated Biology-Driven Metabolomics

Analytical Chemistry

Xing, S. and Jiao, Y. and Salehzadeh, M. and Soma, K.K. and Huan, T.

DOI: 10.1021/acs.analchem.0c04834

Profiling of systemic and brain steroids in male songbirds: Seasonal changes in neurosteroids.

Journal of neuroendocrinology

Jalabert C and Ma C and Soma KK

DOI: 10.1111/jne.12922 PubMed: 33314446

11 / 2020

Sucrose consumption alters steroid and dopamine signalling in the female rat brain

Journal of Endocrinology

Daniel J Tobiansky and George V Kachkovski and Reilly T Enos and Kim L Schmidt and E Angela Murphy and Kiran K Soma

DOI: 10.1530/joe-19-0386

05 / 2020

Effects of aging on testosterone and androgen receptors in the mesocorticolimbic system of male rats

Hormones and Behavior

Katelyn L. Low and Ryan J. Tomm and Chunqi Ma and Daniel J. Tobiansky and Stan B. Floresco and Kiran K. Soma

DOI: 10.1016/j.yhbeh.2020.104689

04 / 2020

Reprint of Concepts derived from the Challenge Hypothesis

Hormones and Behavior

Wingfield, J.C. and Goymann, W. and Jalabert, C. and Soma, K.K.

DOI: 10.1016/j.yhbeh.2020.104802

Phenotypic flexibility of glucocorticoid signaling in skeletal muscles of a songbird preparing to migrate

Hormones and Behavior

Devaleena S. Pradhan and Raymond Van Ness and Cecilia Jalabert and Jordan E. Hamden and Suzanne H. Austin and Kiran K. Soma and Marilyn Ramenofsky and Barney A. Schlinger

DOI: 10.1016/j.yhbeh.2019.104586

11 / 2019

Concepts derived from the Challenge Hypothesis.

Hormones and behavior

Wingfield JC and Goymann W and Jalabert C and Soma KK

DOI: 10.1016/j.yhbeh.2019.06.014 PubMed: 31265826

06 / 2019

Measurement of 11-dehydrocorticosterone in mice, rats and songbirds: Effects of age, sex and stress.

General and comparative endocrinology

Hamden JE and Salehzadeh M and Jalabert C and O'Leary TP and Snyder JS and Gomez-Sanchez CE and Soma KK

DOI: 10.1016/j.ygcen.2019.05.018 PubMed: 31145891

05 / 2019

Pubertal development of estradiol-induced hypothalamic progesterone synthesis.

Hormones and behavior

Mohr MA and Wong AM and Tomm RJ and Soma KK and Micevych PE

DOI: 10.1016/j.yhbeh.2018.12.007 PubMed: 30552874

12 / 2018

Preparing to migrate: expression of androgen signaling molecules and insulin-like growth factor-1 in skeletal muscles of Gambel's white-crowned sparrows.

Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology

Pradhan DS and Ma C and Schlinger BA and Soma KK and Ramenofsky M

DOI: 10.1007/s00359-018-1308-7 PubMed: 30535830

12 / 2018

Neuropeptide Y and orexin immunoreactivity in the sparrow brain coincide with seasonal changes in energy balance and steroids.

The Journal of comparative neurology

Fokidis HB and Ma C and Radin B and Prior NH and Adomat HH and Guns ES and Soma KK

DOI: 10.1002/cne.24535 PubMed: 30225913

10 / 2018

Effects of aging on executive functioning and mesocorticolimbic dopamine markers in male Fischer 344- brown Norway rats.

Neurobiology of Aging

DOI: 10.1016/j.neurobiolaging.2018.08.020 PubMed: 30245243

08 / 2018

Androgen Regulation of the Mesocorticolimbic System and Executive Function.

Frontiers in Endocrinology

DOI: 10.3389/fendo.2018.00279 PubMed: 29922228

06 / 2018

Rapid effects of 17-estradiol on aggressive behavior in songbirds: Environmental and genetic influences.

Hormones and Behavior

DOI: 10.1016/j.yhbeh.2018.03.010 PubMed: 29605636

04 / 2018

Rapid effects of estradiol on aggression depend on genotype in a species with an estrogen receptor polymorphism.

Hormones and Behavior

DOI: 10.1016/j.yhbeh.2017.11.014 PubMed: 29277700

02 / 2018

Testosterone and Corticosterone in the Mesocorticolimbic System of Male Rats: Effects of Gonadectomy and Caloric Restriction.

Endocrinology

DOI: 10.1210/en.2017-00704 PubMed: 29069423

01 / 2018

Aggressive Behavior

Reference Module in Biomedical Sciences

Cecilia Jalabert and Kathleen M. Munley and Gregory E. Demas and Kiran K. Soma

DOI: 10.1016/B978-0-12-801238-3.64591-9

Differential activation of endocrine-immune networks by arthritis challenge: Insights from colony-specific responses.

Scientific Reports

DOI: 10.1038/s41598-017-00652-4 PubMed: 28386080

04 / 2017

Tyramide Signal Amplification Permits Immunohistochemical Analyses of Androgen Receptors in the Rat Prefrontal Cortex.

The Journal of Histochemistry and Cytochemistry

DOI: 10.1369/0022155417694870 PubMed: 28438093

03 / 2017

A maternal high-fat, high-sucrose diet has sex-specific effects on fetal glucocorticoids with little consequence for offspring metabolism and voluntary locomotor activity in mice.

PloS One

DOI: 10.1371/journal.pone.0174030 PubMed: 28301585

03 / 2017

Rapid Effects of Estrogens on Avian Brain and Social Behavior

Hormones, Brain and Behavior

L. Remage-Healey and S.A. Heimovics and K.K. Soma and C.A. Cornil

DOI: 10.1016/B978-0-12-803592-4.00032-8

Early-life antibiotic treatment enhances the pathogenicity of CD4+ T cells during intestinal inflammation.

Journal of Leukocyte Biology

DOI: 10.1189/jlb.3ma0716-334rr PubMed: 28034915

12 / 2016

Local glucocorticoid production in lymphoid organs of mice and birds: Functions in lymphocyte development.

Hormones and Behavior

DOI: 10.1016/j.yhbeh.2016.10.022 PubMed: 27818220

11 / 2016

Lymphoid organs of neonatal and adult mice preferentially produce active glucocorticoids from metabolites, not precursors.

Brain, Behavior, and Immunity

DOI: 10.1016/j.bbi.2016.05.003 PubMed: 27165988

05 / 2016

Context-dependent effects of testosterone treatment to males on pair maintenance behaviour in zebra finches

Animal Behaviour

Nora H. Prior and Kang Nian Yap and Tian Qi D. Liu and Clementine Vignal and Kiran K. Soma

DOI: 10.1016/j.anbehav.2016.01.023

04 / 2016

Identification of Avian Corticosteroid-binding Globulin (SerpinA6) Reveals the Molecular Basis of Evolutionary Adaptations in SerpinA6 Structure and Function as a Steroid-binding Protein.

The Journal of Biological Chemistry

DOI: 10.1074/jbc.M116.714378 PubMed: 27026706

03 / 2016

Sex steroid profiles in zebra finches: Effects of reproductive state and domestication.

General and Comparative Endocrinology

DOI: 10.1016/j.ygcen.2016.02.018 PubMed: 26899721

02 / 2016

Rapid Effects of an Aggressive Interaction on Dehydroepiandrosterone, Testosterone and Oestradiol Levels in the Male Song Sparrow Brain: a Seasonal Comparison.

Journal of Neuroendocrinology

DOI: 10.1111/jne.12345 PubMed: 26648568

02 / 2016

Neuroendocrine regulation of long-term pair maintenance in the monogamous zebra finch

Hormones and Behavior

Nora H. Prior and Kiran K. Soma

DOI: 10.1016/j.yhbeh.2015.04.014

11 / 2015

Sex steroid profiles and pair-maintenance behavior of captive wild-caught zebra finches (Taeniopygia guttata).

Journal of Comparative Physiology A

DOI: 10.1007/s00359-015-1050-3 PubMed: 26610331

11 / 2015

Neuronal Gonadotrophin-Releasing Hormone (GnRH) and Astrocytic Gonadotrophin Inhibitory Hormone (GnIH) Immunoreactivity in the Adult RatHippocampus

Journal of Neuroendocrinology

J. K. Ferris and M. T. Tse and D. K. Hamson and M. D. Taves and C. Ma and N. McGuire and L. Arckens and G. E. Bentley and L. A. M. Galea and S. B. Floresco and K. K. Soma

DOI: 10.1111/jne.12307

09 / 2015

Locally elevated cortisol in lymphoid organs of the developing zebra finch but not Japanese quail or chicken.

Developmental and comparative immunology

DOI: 10.1016/j.dci.2015.09.004 PubMed: 26366679

09 / 2015

Transient and permanent effects of suboptimal incubation temperatures on growth, metabolic rate, immune function and adrenocortical responses in zebra finches

Journal of Experimental Biology

H. Wada and B. Kriengwatana and N. Allen and K. L. Schmidt and K. K. Soma and S. A. MacDougall-Shackleton

DOI: 10.1242/jeb.114108

07 / 2015

A low carbohydrate, high protein diet suppresses intratumoral androgen synthesis and slows castration-resistant prostate tumor growth in mice

The Journal of Steroid Biochemistry and Molecular Biology

H. Bobby Fokidis and Mei Yieng Chin and Victor W. Ho and Hans H. Adomat and Kiran K. Soma and Ladan Fazli and Ka Mun Nip and Michael Cox and Gerald Krystal and Amina Zoubeidi and Emma S. Tomlinson Guns

DOI: 10.1016/j.jsbmb.2015.03.006

06 / 2015

Rapid Effects of Estradiol on Aggression in Birds and Mice: The Fast and the Furious

Integrative and Comparative Biology

Sarah A. Heimovics and Brian C. Trainor and Kiran K. Soma

DOI: 10.1093/icb/icv048

05 / 2015

Non-invasive administration of 17-estradiol rapidly increases aggressive behavior in non-breeding, but not breeding, male song sparrows

Hormones and Behavior

Sarah A. Heimovics and Jennifer K. Ferris and Kiran K. Soma

DOI: 10.1016/j.yhbeh.2014.11.012

03 / 2015

Steroid Profiling Reveals Widespread Local Regulation of Glucocorticoid Levels During Mouse Development

Endocrinology

Matthew D. Taves and Adam W. Plumb and Benjamin A. Sandkam and Chunqi Ma and Jessica Grace Van Der Gugten and Daniel T. Holmes and David A. Close and Ninan Abraham and Kiran K. Soma

DOI: 10.1210/en.2013-1606

02 / 2015

DHEA effects on brain and behavior: Insights from comparative studies of aggression

The Journal of Steroid Biochemistry and Molecular Biology

Kiran K. Soma and Nikki M. Rendon and Rudy Boonstra and H. Elliott Albers and Gregory E. Demas

DOI: 10.1016/j.jsbmb.2014.05.011

01 / 2015

Regulation of local steroidogenesis in the brain and in prostate cancer: Lessons learned from interdisciplinary collaboration

Frontiers in Neuroendocrinology

H. Bobby Fokidis and Hans H. Adomat and Geetanjali Kharmate and Elham Hosseini-Beheshti and Emma S. Guns and Kiran K. Soma

DOI: 10.1016/j.yfrne.2014.08.005

01 / 2015

Colony-Specific Differences in Endocrine and Immune Responses to an Inflammatory Challenge in Female Sprague Dawley Rats

Endocrinology

Tamara S. Bodnar and Lesley A. Hill and Matthew D. Taves and Wayne Yu and Kiran K. Soma and Geoffrey L. Hammond and Joanne Weinberg

DOI: 10.1210/en.2015-1497

Effects of nutritional stress during different developmental periods on song and the hypothalamic"pituitary"adrenal axis in zebra finches

Hormones and Behavior

B. Kriengwatana and H. Wada and K.L. Schmidt and M.D. Taves and K.K. Soma and S.A. MacDougall-Shackleton

DOI: 10.1016/j.yhbeh.2013.12.013

03 / 2014

Acute and chronic effects of an aromatase inhibitor on pair-maintenance behavior of water-restricted zebra finch pairs

General and Comparative Endocrinology

Nora H. Prior and Kang Nian Yap and Kiran K. Soma

DOI: 10.1016/j.ygcen.2013.10.018

01 / 2014

Developmental programming of the HPA and HPG axes by early-life stress in male and female song sparrows

General and Comparative Endocrinology

Kim L. Schmidt and Elizabeth A. MacDougall-Shackleton and Kiran K. Soma and Scott A. MacDougall-Shackleton

DOI: 10.1016/j.ygcen.2013.11.014

01 / 2014

Effects of Corticosterone and DHEA on Doublecortin Immunoreactivity in the Song Control System and Hippocampus of Adult Song Sparrows

Developmental Neurobiology

Wada, H. and Newman, A. E. M. and Hall, Z. J. and Soma, K. K. and MacDougall-Shackleton, S. A.

DOI: 10.1002/dneu.22132

Gonadotropin releasing hormone (GnRH) and gonadotropin inhibitory hormone (GnIH) in the songbird hippocampus: Regional and sex differences in adult zebra finches

Peptides

McGuire, N. and Ferris, J. K. and Arckens, L. and Bentley, G. E. and Soma, K. K.

DOI: 10.1016/j.peptides.2013.05.007

Year-round territorial aggression is independent of plasma DHEA in the European nuthatch Sitta europaea

Hormones and Behavior

Landys, M.M. and Goymann, W. and Soma, K.K. and Slagsvold, T.

DOI: 10.1016/j.yhbeh.2012.10.002

Inhibition of Hippocampal Aromatization Impairs Spatial Memory Performance in a Male Songbird

Endocrinology

Bailey, D. J. and Ma, C. Q. and Soma, K. K. and Saldanha, C. J.

DOI: 10.1210/en.2013-1684

Sex Steroid Levels and AD-Like Pathology in 3xTgAD Mice

Journal of Neuroendocrinology

Overk, C. R. and Perez, S. E. and Ma, C. and Taves, M. D. and Soma, K. K. and Mufson, E. J.

DOI: 10.1111/j.1365-2826.2012.02374.x

Effects of water restriction on reproductive physiology and affiliative behavior in an opportunistically-breeding and monogamous songbird, the zebra finch

Hormones and Behavior

Prior, N. H. and Heimovics, S. A. and Soma, K. K.

DOI: 10.1016/j.yhbeh.2012.12.010

Corticosterone and fitness: effects of incubation temperature

Integrative and Comparative Biology

Wada, H. and Allen, N. R. and Kriengwatana, B. and Schmidt, K. L. and Soma, K. K. and Macdougall-Shackleton, S. A.

Stress in the wild: Chronic predator pressure and acute restraint affect plasma DHEA and corticosterone levels in a songbird

Stress-the International Journal on the Biology of Stress

Newman, A. E. M. and Zanette, L. Y. and Clinchy, M. and Goodenough, N. and Soma, K. K.

DOI: 10.3109/10253890.2012.723076

Fasting Increases Aggression and Differentially Modulates Local And Systemic Steroid Levels in Male Zebra Finches

Endocrinology

Fokidis, H. B. and Prior, N. H. and Soma, K. K.

DOI: 10.1210/en.2013-1171

Brain Aromatase and Territorial Aggression Across the Seasons in Male Song Sparrows

Brain Aromatase, Estrogens, and Behavior

Sarah A. Heimovics and H. Bobby Fokidis and Kiran K. Soma

DOI: 10.1093/acprof:oso/9780199841196.003.0011

10 / 2012

Regulation of 3-HSD activity in the songbird brain

DOI: 10.1007/s10336-011-0808-9

08 / 2012

Non-breeding feather concentrations of testosterone, corticosterone and cortisol are associated with subsequent survival in wild house sparrows

Proceedings of the Royal Society B: Biological Sciences

Koren, L. and Nakagawa, S. and Burke, T. and Soma, K.K. and Wynne-Edwards, K.E. and Geffen, E.

DOI: 10.1098/rspb.2011.2062

Rapid and widespread effects of 17-estradiol on intracellular signaling in the male songbird brain: a seasonal comparison

Endocrinology

Heimovics, S.A. and Prior, N.H. and Maddison, C.J. and Soma, K.K.

DOI: 10.1210/en.2011-1525

Sample preparation and liquid chromatography-tandem mass spectrometry for multiple steroids in mammalian and avian circulation

PLoS ONE

Koren, L. and Ng, E.S.M. and Soma, K.K. and Wynne-Edwards, K.E.

DOI: 10.1371/journal.pone.0032496

Effects of Water Restriction on Zebra Finch Reproductive Physiology and Pair-maintenance Behavior

Integrative and Comparative Biology

Prior, N. H. and Heimovics, S. A. and Soma, K. K.

Soft song during aggressive interactions: Seasonal changes and endocrine correlates in song sparrows

Hormones and Behavior

Maddison, C.J. and Anderson, R.C. and Prior, N.H. and Taves, M.D. and Soma, K.K.

DOI: 10.1016/j.yhbeh.2012.08.002

Aggressive interactions differentially modulate local and systemic levels of corticosterone and DHEA in a wild songbird

DOI: 10.1016/j.yhbeh.2011.07.007

09 / 2011

DHEA and Aggression

DOI: 10.1201/b11019-40

07 / 2011

Multiple measures elucidate glucocorticoid responses to environmental variation in predation threat

Oecologia

Clinchy, M. and Zanette, L. and Charlier, T.D. and Newman, A.E.M. and Schmidt, K.L. and Boonstra, R. and Soma, K.K.

DOI: 10.1007/s00442-011-1915-2

Rapid effects of aggressive interactions on aromatase activity and oestradiol in discrete brain regions of wild male white-crowned sparrows

Journal of Neuroendocrinology

Charlier, T.D. and Newman, A.E.M. and Heimovics, S.A. and Po, K.W.L. and Saldanha, C.J. and Soma, K.K.

DOI: 10.1111/j.1365-2826.2011.02170.x

Extra-adrenal glucocorticoids and mineralocorticoids: Evidence for local synthesis, regulation, and function

American Journal of Physiology - Endocrinology and Metabolism

Taves, M.D. and Gomez-Sanchez, C.E. and Soma, K.K.

DOI: 10.1152/ajpendo.00100.2011

Measurement of Steroid Concentrations in Brain Tissue: Methodological Considerations

DOI: 10.3389/fendo.2011.00039

DHEA and estradiol levels in brain, gonads, adrenal glands, and plasma of developing male and female European starlings

Journal of Comparative Physiology A: Neuroethology, Sensory, Neural, and Behavioral Physiology

Shah, A.H. and Chin, E.H. and Schmidt, K.L. and Soma, K.K.

DOI: 10.1007/s00359-011-0655-4

Corticosterone and dehydroepiandrosterone have opposing effects on adult neuroplasticity in the avian song control system

Journal of Comparative Neurology

Newman, A.E.M. and MacDougall-Shackleton, S.A. and An, Y.-S. and Kriengwatana, B. and Soma, K.K.

DOI: 10.1002/cne.22395

17-Estradiol levels in male zebra finch brain: Combining Palkovits punch and an ultrasensitive radioimmunoassay

General and Comparative Endocrinology

Charlier, T.D. and Po, K.W.L. and Newman, A.E.M. and Shah, A.H. and Saldanha, C.J. and Soma, K.K.

DOI: 10.1016/j.ygcen.2010.02.002

Corticosterone and cortisol binding sites in plasma, immune organs and brain of developing zebra finches: Intracellular and membrane-associated receptors

Brain, Behavior, and Immunity

Schmidt, K.L. and Malisch, J.L. and Breuner, C.W. and Soma, K.K.

DOI: 10.1016/j.bbi.2010.02.008

Steroid concentrations in plasma, whole blood and brain: Effects of saline perfusion to remove blood contamination from brain

PLoS ONE

Taves, M.D. and Schmidt, K.L. and Ruhr, I.M. and Kapusta, K. and Prior, N.H. and Soma, K.K.

DOI: 10.1371/journal.pone.0015727

Elevated corticosterone levels in stomach milk, serum, and brain of male and female offspring after maternal corticosterone treatment in the rat

Developmental Neurobiology

Brummelte, S. and Schmidt, K.L. and Taves, M.D. and Soma, K.K. and Galea, L.A.M.

DOI: 10.1002/dneu.20805

Aggressive interactions rapidly increase androgen synthesis in the brain during the non-breeding season

Hormones and Behavior

Pradhan, D.S. and Newman, A.E.M. and Wacker, D.W. and Wingfield, J.C. and Schlinger, B.A. and Soma, K.K.

DOI: 10.1016/j.yhbeh.2010.01.008

3-HSD in songbird brain: Subcellular localization and rapid regulation by estradiol

Journal of Neurochemistry

Pradhan, D.S. and Lau, L.Y.M. and Schmidt, K.L. and Soma, K.K.

DOI: 10.1111/j.1471-4159.2010.06954.x

Corticosterone and dehydroepiandrosterone in songbird plasma and brain: Effects of season and acute stress

European Journal of Neuroscience

Newman, A.E.M. and Soma, K.K.

DOI: 10.1111/j.1460-9568.2009.06748.x

Effects of aggressive encounters on plasma corticosteroid-binding globulin and its ligands in white-crowned sparrows

Hormones and Behavior

Charlier, T.D. and Underhill, C. and Hammond, G.L. and Soma, K.K.

DOI: 10.1016/j.yhbeh.2009.06.012

Aggressive encounters differentially affect serum dehydroepiandrosterone and testosterone concentrations in male Siberian hamsters (Phodopus sungorus)

Hormones and Behavior

Scotti, M.-A.L. and Schmidt, K.L. and Newman, A.E.M. and Bonu, T. and Soma, K.K. and Demas, G.E.

DOI: 10.1016/j.yhbeh.2009.07.004

Cortisol and corticosterone in immune organs and brain of European starlings: Developmental changes, effects of restraint stress, comparison with zebra finches

American Journal of Physiology - Regulatory Integrative and Comparative Physiology

Schmidt, K.L. and Chin, E.H. and Shah, A.H. and Soma, K.K.

DOI: 10.1152/ajpregu.90964.2008

Novel mechanisms for neuroendocrine regulation of aggression

DOI: 10.1016/j.yfrne.2007.12.003

10 / 2008

Neuroprogesterone: Key to estrogen positive feedback?

DOI: 10.1016/j.brainresrev.2007.06.009

03 / 2008

3-HSD activates DHEA in the songbird brain

DOI: 10.1016/j.neuint.2007.05.003

03 / 2008

Analysis of steroids in songbird plasma and brain by coupling solid phase extraction to radioimmunoassay

General and Comparative Endocrinology

Newman, A.E.M. and Chin, E.H. and Schmidt, K.L. and Bond, L. and Wynne-Edwards, K.E. and Soma, K.K.

DOI: 10.1016/j.ygcen.2007.08.007

Sex differences in DHEA and estradiol during development in a wild songbird: Jugular versus brachial plasma

Hormones and Behavior

Chin, E.H. and Shah, A.H. and Schmidt, K.L. and Sheldon, L.D. and Love, O.P. and Soma, K.K.

DOI: 10.1016/j.yhbeh.2008.02.014

Plasma DHEA levels in wild, territorial red squirrels: Seasonal variation and effect of ACTH

General and Comparative Endocrinology

Boonstra, R. and Lane, J.E. and Boutin, S. and Bradley, A. and Desantis, L. and Newman, A.E.M. and Soma, K.K.

DOI: 10.1016/j.ygcen.2008.05.004

Cortisol and corticosterone in the songbird immune and nervous systems: Local vs. systemic levels during development

American Journal of Physiology - Regulatory Integrative and Comparative Physiology

Schmidt, K.L. and Soma, K.K.

DOI: 10.1152/ajpregu.00002.2008

Rapid estrogen regulation of DHEA metabolism in the male and female songbird brain

Journal of Neurochemistry

Pradhan, D.S. and Yu, Y. and Soma, K.K.

DOI: 10.1111/j.1471-4159.2007.04953.x

Dehydroepiandrosterone and corticosterone are regulated by season and acute stress in a wild songbird: Jugular versus brachial plasma

Endocrinology

Newman, A.E.M. and Pradhan, D.S. and Soma, K.K.

DOI: 10.1210/en.2007-1363

Neurosteroids, immunosteroids, and the Balkanization of endocrinology

General and Comparative Endocrinology

Schmidt, K.L. and Pradhan, D.S. and Shah, A.H. and Charlier, T.D. and Chin, E.H. and Soma, K.K.

DOI: 10.1016/j.ygcen.2008.03.025

Effects of blood collection on wild birds: An update

Journal of Avian Biology

Sheldon, L.D. and Chin, E.H. and Gill, S.A. and Schmaltz, G. and Newman, A.E.M. and Soma, K.K.

DOI: 10.1111/j.0908-8857.2008.04295.x

Novel mechanisms underlying neuroendocrine regulation of aggression: A synthesis of rodent, avian, and primate studies

Handbook of Neurochemistry and Molecular Neurobiology: Behavioral Neurochemistry, Neuroendocrinology and Molecular Neurobiology

Demas, G.E. and Cooper, M.A. and Albers, H.E. and Soma, K.K.

DOI: 10.1007/978-0-387-30405-2_8

Testosterone and aggression: Berthold, birds and beyond

Journal of Neuroendocrinology

Soma, K.K.

DOI: 10.1111/j.1365-2826.2006.01445.x

Recent advances in behavioral neuroendocrinology: Insights from studies on birds

DOI: 10.1016/j.yhbeh.2005.04.005

11 / 2005

Neural responses to aggressive challenge correlate with behavior in nonbreeding sparrows

DOI: 10.1097/01.wnr.0000183898.47160.15

10 / 2005

Cross-modal integration in a dart-poison frog

Proceedings of the National Academy of Sciences of the United States of America

Narins, P.M. and Grabul, D.S. and Soma, K.K. and Gaucher, P. and Hdl, W.

DOI: 10.1073/pnas.0406407102

Neurosteroids and female reproduction: Estrogen increases 3-HSD mRNA and activity in rat hypothalamus

Endocrinology

Soma, K.K. and Sinchak, K. and Lakhter, A. and Schlinger, B.A. and Micevych, P.E.

DOI: 10.1210/en.2005-0569

Territorial aggression and hormones during the non-breeding season in a tropical bird

DOI: 10.1016/j.yhbeh.2003.08.002

01 / 2004

Dehydroepiandrosterone metabolism by 3-hydroxysteroid dehydrogenase/5-4 isomerase in adult zebra finch brain: Sex difference and rapid effect of stress

Endocrinology

Soma, K.K. and Alday, N.A. and Hau, M. and Schlinger, B.A.

DOI: 10.1210/en.2003-0883

Estrogen Contributes to Seasonal Plasticity of the Adult Avian Song Control System

Journal of Neurobiology

Soma, K.K. and Tramontin, A.D. and Featherstone, J. and Brenowitz, E.A.

DOI: 10.1002/neu.10288

Brain aromatase, 5a-reductase, and 5-reductase change seasonally in wild male song sparrows: Relationship to aggressive and sexual behavior

Journal of Neurobiology

Soma, K.K. and Schlinger, B.A. and Wingfield, J.C. and Saldanha, C.J.

DOI: 10.1002/neu.10225

Dehydroepiandrosterone (DHEA) increases territorial song and the size of an associated brain region in a male songbird

Hormones and Behavior

Soma, K.K. and Wissman, A.M. and Brenowitz, E.A. and Wingfield, J.C.

DOI: 10.1006/hbeh.2001.1750

Spring and autumn territoriality in song sparrows: Same behavior, different mechanisms?

Integrative and Comparative Biology

Wingfield, J.C. and Soma, K.K.

DOI: 10.1093/icb/42.1.11

Dehydroepiandrosterone in Songbird Plasma: Seasonal Regulation and Relationship to Territorial Aggression

DOI: 10.1006/gcen.2001.7657

08 / 2001

Neurosteroids and brain sexual differentiation

DOI: 10.1016/S0166-2236(00)01855-5

08 / 2001

Advances in Avian Behavioral Endocrinology

DOI: 10.2307/4089791

04 / 2001

Avoiding the 'costs' of testosterone: Ecological bases of hormone-behavior interactions

Brain, Behavior and Evolution

Wingfield, J.C. and Lynn, S.E. and Soma, K.K.

DOI: 10.1159/000047243

Hippocampal volume does not change seasonally in a non food-storing songbird

NeuroReport

Lee, D.W. and Smith, G.T. and Tramontin, A.D. and Soma, K.K. and Brenowitz, E.A. and Clayton, N.S.

Testosterone and Year-Round Territorial Aggression in a Tropical Bird

DOI: 10.1006/gcen.1999.7390

01 / 2000

Acute and chronic effects of an aromatase inhibitor on territorial aggression in breeding and nonbreeding male song sparrows

Journal of Comparative Physiology - A Sensory, Neural, and Behavioral Physiology

Soma, K.K. and Sullivan, K.A. and Tramontin, A.D. and Saldanha, C.J. and Schlinger, B.A. and Wingfield, J.C.

DOI: 10.1007/s003590000129

Oestrogen regulates male aggression in the non-breeding season

Proceedings of the Royal Society B: Biological Sciences

Soma, K.K. and Tramontin, A.D. and Wingfield, J.C.

Combined Aromatase Inhibitor and Antiandrogen Treatment Decreases Territorial Aggression in a Wild Songbird during the Nonbreeding Season

DOI: 10.1006/gcen.1999.7334

09 / 1999

Androgen-metabolizing enzymes show region-specific changes across the breeding season in the brain of a wild songbird

Journal of Neurobiology

Soma, K.K. and Bindra, R.K. and Gee, J. and Wingfield, J.C. and Schlinger, B.A.

DOI: 10.1002/(SICI)1097-4695(19991105)41:2u003C176::AID-NEU2u003E3.0.CO;2-2

Testosterone, aggresssion, and communication: Ecological bases of endocrine phenomena

Design of Animal Communication

Wingfield, J. C. and Jacobs, J. D. and Soma, K. and Maney, D. L. and Hunt, K. and Wisti-Peterson, D. and Meddle, S. and Ramenofsky, M. and Sullivan, K.

Seasonal changes in androgen receptor immunoreactivity in the song nucleus HVc of a wild bird

Journal of Comparative Neurology

Soma, K.K. and Hartman, V.N. and Wingfield, J.C. and Brenowitz, E.A.

DOI: 10.1002/(SICI)1096-9861(19990628)409:2u003C224::AID-CNE4u003E3.0.CO;2-V

The hypothalamus and adrenal regulate modulation of corticosterone release in redpolls (Carduelis flammea - An arctic-breeding song bird)

General and Comparative Endocrinology

Romero, L.M. and Soma, K.K. and Wingfield, J.C.

DOI: 10.1006/gcen.1997.7048

Hypothalamic-pituitary-adrenal axis changes allow seasonal modulation of corticosterone in a bird

American Journal of Physiology - Regulatory Integrative and Comparative Physiology

Romero, L.M. and Soma, K.K. and Wingfield, J.C.

Hormones and territorial behavior during breeding in snow buntings (Plectrophenax nivalis): An arctic-breeding songbird

Hormones and Behavior

Romero, L.M. and Soma, K.K. and O\'Reilly, K.M. and Suydam, R. and Wingfield, J.C.

DOI: 10.1006/hbeh.1997.1432

Changes in pituitary and adrenal sensitivities allow the snow bunting (Plectrophenax nivalis), an Arctic-breeding song bird, to modulate corticosterone release seasonally

Journal of Comparative Physiology - B Biochemical, Systemic, and Environmental Physiology

Romero, L.M. and Soma, K.K. and Wingfield, J.C.

DOI: 10.1007/s003600050154

Territorial behavior, hormonal changes, and body condition in an arctic-breeding song bird, the redpoll (carduelis flammea)

Behaviour

Romero, L.M. and Soma, K.K. and O\'Reilly, K.M. and Suydam, R. and Wingfield, J.C.

Androgen regulation of hypothalamic neurons containing gonadotropin-releasing hormone in a cichlid fish: Integration with social cues

Hormones and Behavior

Soma, K.K. and Francis, R.C. and Wingfield, J.C. and Fernald, R.D.

DOI: 10.1006/hbeh.1996.0026

Social regulation of the brain-pituitary-gonadal axis

Proceedings of the National Academy of Sciences of the United States of America

Francis, R.C. and Soma, K. and Fernald, R.D.

SOCIAL REGULATION OF THE BRAIN PITUITARY-GONADAL AXIS

Proceedings of the National Academy of Sciences of the United States of America

Francis, R. C. and Soma, K. and Fernald, R. D.

DOI: 10.1073/pnas.90.16.7794
Grants

CIHR Operating Grant

NSERC Discovery Grant

CFI Leaders Fund

Honours & Awards

CIHR New Investigator (2004-2009), MSFHR Scholar (2004-2009)

AAAS Fellow (2015)

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