Biomaterial Database

Effects of repeated aggressive encounters on approach to a female and plasma testosterone in male mice. 2004

Natalia N Kudryavtseva, and Tamara G Amstislavskaya, and Sergej Kucheryavy

Neurogenetics of Social Behaviors Sector, Institute of Cytology and Genetics SD RAS, Novosibirsk 630090, Russia. natnik@bionet.nsc.ru

Effects of repeated experience of aggression accompanied by social victories or social defeat in 10 daily agonistic confrontations on testosterone levels in and the behavioral response of CBA/Lac male mice exposed to a receptive female from behind a perforated transparent partition have been examined. Testosterone levels were not changed significantly in the mice that had consistently been victorious over 10 days (winners) or in the mice that had consistently been defeated over 10 days (losers). Losers and controls (mice that had been caged individually for 5 days) responded with increased levels of behavioral activity near the partition and elevated testosterone. Winners showed a significantly poorer behavioral and hormonal response. It is concluded that the repeated display of aggression by male mice led to a reduction in both their behavioral and neuroendocrine responses to an estrous female.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D011214	Practice, Psychological	Performance of an act one or more times, with a view to its fixation or improvement; any performance of an act or behavior that leads to learning.	Practice (Psychology),Practice, Psychology,Practicing, Psychological,Practicing, Psychology,Psychological Practice,Psychological Practicing,Psychology Practice,Psychology Practicing
D004291	Dominance-Subordination	Relationship between individuals when one individual threatens or becomes aggressive and the other individual remains passive or attempts to escape.	Dominance Subordination,Dominance-Subordinations
D005260	Female		Females
D000374	Aggression	Behavior which may be manifested by destructive and attacking action which is verbal or physical, by covert attitudes of hostility or by obstructionism.	Aggressions
D000704	Analysis of Variance	A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.	ANOVA,Analysis, Variance,Variance Analysis,Analyses, Variance,Variance Analyses
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001070	Appetitive Behavior	Animal searching behavior. The variable introductory phase of an instinctive behavior pattern or sequence, e.g., looking for food, or sequential courtship patterns prior to mating.	Searching Behavior,Appetitive Behaviors,Behavior, Appetitive,Behavior, Searching,Behaviors, Appetitive,Behaviors, Searching,Searching Behaviors
D012726	Sexual Behavior, Animal	Sexual activities of animals.	Mating Behavior, Animal,Sex Behavior, Animal,Animal Mating Behavior,Animal Mating Behaviors,Animal Sex Behavior,Animal Sex Behaviors,Animal Sexual Behavior,Animal Sexual Behaviors,Mating Behaviors, Animal,Sex Behaviors, Animal,Sexual Behaviors, Animal
D012919	Social Behavior	Any behavior caused by or affecting another individual or group usually of the same species.	Sociality,Behavior, Social,Behaviors, Social,Social Behaviors