2014. Evidence of higher levels of testosterone during the velvet period in muntjac than in other cervids. Theriogenology, 81(3): 403-406.Evidence of higher levels of testosterone during the velvet period in muntjac than in other cervids[J] . Chiu-Shuang Lin,Kurtis Jai-Chyi Pei,Paulus S....
Cliff swallows of both sexes show the highest testosterone levels during the period of nest establishment and pair formation (Smith et al. 2005), but apparently this phase of the annual cycle (our ‘early’ stage) is not energetically challenging enough to cause increased corticosterone and thus ...
The testosterone level decreased significantly over the seven consecutive bleedings of the hourly sampling period in five weeks and a significant interaction between breed of ram and testosterone level of consecutive bleedings was observed in three weeks. The results show that testosterone levels in ...
randomized, double-blind, placebo-controlled study to assess the effects of testosterone supplementation on functional mobility, cognition, bone mineral density, body composition, lipids, quality of life, and safety parameters in older men with low normal testosterone levels during a period of 6 ...
Estrogen levels rise and fall throughout your life. During puberty, estrogen shoots up to help your body make physical changes, such as breast development. Levels change during your menstrual cycle: rising during ovulation, when your body produces an egg, and dropping during your period. It also...
During periods of sexual inactivity, plasma testosterone values fell to a low of about 200 ng/100 ml. The results demonstrate a correlation between seasonal breeding activity and increased levels of circulating testosterone in the rhesus monkey, and are supportive of the postulate that other ...
During prenatal brain development, sex hormones like testosterone organize the brain in permanent ways. But research suggests thattestosterone levelsduring another developmental period—puberty—may have long-lasting effects on brain function, too.
A direct relationship between the variation of the amount of feeding activity and the variation of the period of the free running rhythm was also established. During a seasonal breeding cycle, this change in circadian organization would lead to a slower advance of feeding activity, allowing the ...
Elevated testosterone levels during nonbreeding-season territoriality in a fall-breeding lizard, Sceloporus jarrovi the sex steroid hormones testosterone, progesterone, and estradiol indicated that testosterone levels in both sexes are elevated when territorial behavior is expressed, even during the period of...
Changes in sex hormone-binding globulin and testosterone during weight loss and weight maintenance in abdominally obese men with the metabolic syndrome Mild hypoandrogenism in men, usually defined by low levels of testosterone, is a peculiar feature of abdominal obesity that independently predicts the...