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Articles 1 - 4 of 4
Full-Text Articles in Physiology
A Test Of The Effects Of Androgens On Immunity: No Relationship Between 11-Keto Testosterone And Immune Performance In Bluegill Sunfish (Lepomis Macrochirus), John W. Loggie
Electronic Thesis and Dissertation Repository
The posited immunosuppressive effects of androgens are a key component of the immunocompetence handicap hypothesis (ICHH). My thesis uses bluegill sunfish (Lepomis macrochirus) to test two predictions arising from this hypothesis: (1) natural concentrations of the androgen 11-keto testosterone (11-KT) will be negatively related with immunity, and (2) an immunochallenge will lower 11-KT concentration. I found no evidence for a relationship between natural 11-KT concentration and measures of immunity (leukocyte counts, respiratory burst, cytokine gene expression), and an immunochallenge with Vibrio vaccine did not affect 11-KT concentration. I performed a meta-analysis of immunochallenge studies to help interpret my …
Female Social Rank And Steroid Production In Semi-Free Ranging Lemur Catta On St. Catherines Island, Georgia, Tiffany Burgess
Female Social Rank And Steroid Production In Semi-Free Ranging Lemur Catta On St. Catherines Island, Georgia, Tiffany Burgess
Electronic Theses and Dissertations
Many mammalian species live in complex social groups that profoundly affect the behavior and ecology of their members. In ring-tailed lemurs (Lemur catta) these groups are characterized by female dominance, where females have priority over males for food, grooming, and space. Among females there is also a linear dominance hierarchy. L. catta have a strong matrilineal social core due to females staying within their natal group and males dispersing at sexual maturity. Daughters “inherit” their mother’s social rank. However, it is not known if the matrilineal lines are maintained through learned dominant/aggressive behavior or inherited via genetically determined hormonal …
3b-Hydroxy-5a-Androst-1-En-17-One Increases Testosterone Bioavailability Through Downregulation Of Sex Hormone Binding Globulin Protein, Lisa T. Jansen, Jorge Granados, Halie Harton, Matthew R. Kuennen
3b-Hydroxy-5a-Androst-1-En-17-One Increases Testosterone Bioavailability Through Downregulation Of Sex Hormone Binding Globulin Protein, Lisa T. Jansen, Jorge Granados, Halie Harton, Matthew R. Kuennen
International Journal of Exercise Science: Conference Proceedings
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3-Hydroxy-5alpha-Androst-1-En-17-One Enhances Muscular Gains But Impairs The Cardio-Metabolic Health Of Resistance Trained Males., Jorge Granados, Trevor Gillum, Cammie Hodges, Matthew Kuennen
3-Hydroxy-5alpha-Androst-1-En-17-One Enhances Muscular Gains But Impairs The Cardio-Metabolic Health Of Resistance Trained Males., Jorge Granados, Trevor Gillum, Cammie Hodges, Matthew Kuennen
International Journal of Exercise Science: Conference Proceedings
No abstract provided.