The Mayo Clinic Study of Aging. This region- and sex-specific difference in the social modulation of cell proliferation may be consistent with the sexually-dimorphic functions of the POA and IF. We then exposed the gonadectomized and implanted frogs to a conspecific mating chorus or a control stimulus random tones and assessed the number of proliferating cells via BrdU-immunoreactivity.
Newhouse P, Dumas J. GoldsteinPh. The cognitive neuroscience of ageing. Diethylstilbestrol Zearalenone. Skip to content Chapter The endocrine system can be exploited for illegal or unethical purposes. Sex steroidsalso known as gonadocorticoids and gonadal steroidsare steroid hormones that interact with vertebrate steroid hormone receptors.
Future investigations would benefit from studying additional cognitive domains that may be sensitive to early age-related decline. Support Center Support Center. Obstet Gynecol Clin North Am. The HPG axis is highly conserved in the animal kingdom. Starvation from anorexia nervosa or bulimia causes the HPG axis to deactivate causing women's ovarian and uterine cycles to stop.
The Journal of steroid biochemistry and molecular biology. At the behavioral level, performance on PFC-dependent memory tasks is enhanced by cyclic estradiol administration in aged female macaques Kohama et al. Long-term consequences of estrogens administered in midlife on female cognitive aging.
Further, exogenous testosterone has been shown to increase cell survival in the rat hippocampus [ Spritzer and Galea, ] and amygdala voles [ Fowler et al. What may be driving these socially induced changes in cell proliferation or survival is beyond the scope of this study.
Mol Cell Endocrinol , 32— Seasonal plasma sex steroid levels in the female Rana esculenta. The output of the board connected to a computer with custom-designed software that counted each male subject's calls.