Social isolation during peri-adolescence or adulthood: effects on sexual motivation, testosterone and corticosterone response under conditions of sexual arousal in male rats.
نویسندگان
چکیده
Reproductive functions in adult organism are known to be affected by different factors. Effects of social environment at the postnatal ontogenesis attract particular attention since it has deep impact on the development of physiological and emotional state of an individual. Effects of chronic social isolation at different ages on male sexual motivation, testosterone and corticosterone response under conditions of sexual arousal were studied in Wistar rats. After weaning at the 21st [corrected] day of age, rats of one group were isolated for six weeks and after that they were housed in groups of five per cage for ten weeks (Iso3-9). Rats of the second group were housed in groups of five animals per cage till 13 weeks of age, and then they were isolated for six weeks (Iso13-19). Rats of the control group were housed in groups during the experiment. Adult 19 week- old male rats were tested under conditions of sexual arousal. The expression of sexual motivation was estimated as the behavioral activity of a male at the transparent perforated partition separating a receptive female. Isolation of adult male rats reduced the number of approaches to the partition, while the period of time a male spent at the partition was not changed and testosterone response was enhanced as compared to control rats. Chronic social isolation during peri-adolescence reduced sexual motivation and prevented arousal-induced elevation of testosterone. Plasma corticosterone increases at sexual arousal in the two groups of isolated rats did not differ from that in controls. Our results are evidence that social isolation during the post-maturity stage (Iso13-19) did not diminish the manifestation of sexual motivation and hormonal response to a receptive female, while isolation during peri-adolescence attenuated behavioral and hormonal expression of sexual arousal in adult males.
منابع مشابه
Effect of Hydro-Methanolic Extract of Xylopia Aethiopica on Sexual Behaviour in Male Wister Rats
This study aims to investigate the effect of xylopia aethiopica on the sexual behavior of adult male rats. Fort eight adult male wistar rats were used for the study. They were randomly divided into four groups of 6 animals each: group 1 was control, while groups 2, 3 and 4 were test groups treated daily with 0.5, 2 and 10 mg/kg body weight respectively of hydro-methanolic fruit extract...
متن کاملThe Effects of Lead Acetate on Sexual Behavior and the Level of Testosterone in Adult Male Rats
متن کامل
Effect of Hydro-Methanolic Extract of Xylopia Aethiopica on Sexual Behaviour in Male Wister Rats
This study aims to investigate the effect of xylopia aethiopica on the sexual behavior of adult male rats. Fort eight adult male wistar rats were used for the study. They were randomly divided into four groups of 6 animals each: group 1 was control, while groups 2, 3 and 4 were test groups treated daily with 0.5, 2 and 10 mg/kg body weight respectively of hydro-methanolic fruit extract...
متن کاملDeficits in male sexual behavior in adulthood after social instability stress in adolescence in rats.
There is increasing evidence that exposure to stressors in adolescence has long-lasting effects on emotional and cognitive behavior, but little is known as to whether reproductive functions are affected. We investigated appetitive and consummatory aspects of sexual behavior in male rats that were exposed to chronic social instability stress (SS, n=24) for 16 days in mid-adolescence compared to ...
متن کاملThe effects of subchronic social and isolation stresses on learning and memory trend in male rats
Introduction: Psychological stresses influence brain functions such as learning and memory. Environmental factors like types and durations of stress affect brain responsiveness. This study investigated the effects of two subchronic social and isolation stresses on learning, memory, adrenal glands weight and corticosterone levels in the hippocampus and frontal cortex. Methods: Eighteen male ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- The Chinese journal of physiology
دوره 56 1 شماره
صفحات -
تاریخ انتشار 2013