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Positive effects of testosterone and immunochallenge on energy allocation to reproductive organs
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Positive effects of testosterone and immunochallenge on energy allocation to reproductive organs
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Journal Article
Positive effects of testosterone and immunochallenge on energy allocation to reproductive organs
2005
Overview
A number of studies have suggested the incompatibility of simultaneous increases in immune and reproductive functions. Other research has indicated that immune responses may be modulated depending on the relative benefits of increased survival and prospects for current and future reproduction. We tested the hypothesis that energy allocation to reproductive and other organ systems is not affected by testosterone level and energy expenditure on immune functions. Adult male white-footed mice (Peromyscus leucopus) with or without elevated testosterone levels and with or without immunochallenges were tested. Testosterone treatment was associated with reduced humoral immune response indicating immunosuppressive effects, reduced masses of gastrointestinal organs, reduced corticosterone level, increased kidney and seminal vesicle masses, and increased hematocrit. Immunochallenge was associated with increased resting metabolic rate and testes and seminal vesicle masses. Reproductive organ masses were greatest in immunochallenged mice with exogenous testosterone. Simultaneous increases in energy allocation to immune and reproductive structures may be an adaptive response that would enhance survival and current prospects for reproduction.
Publisher
Berlin/Heidelberg : Springer-Verlag,Springer Nature B.V
Subject
/ Animals
/ Antibody Formation - drug effects
/ Antibody Formation - physiology
/ Energy Metabolism - drug effects
/ Immunity, Cellular - drug effects
/ Immunity, Cellular - physiology
/ Kidney - anatomy & histology
/ Male
/ Phytohemagglutinins - immunology
/ Rodents
/ Seminal Vesicles - anatomy & histology
/ Seminal Vesicles - drug effects
/ Seminal Vesicles - metabolism
/ Stomach - anatomy & histology
