The stage in the development of humans and other primates marked by maturing of the reproductive organs and by the start of menstruation in females and sperm production in males. During puberty, the production of sex hormones causes other physical changes, including breast development in females and...
Tanner stage of pubertal development was delayed >2SD relative to chronologic age but not to bone age in 79% of patients. Testosterone (T), Δ4-androstenedione (Δ4), dehydro-epiandrosterone (DHEA), DHEA sulfate (DS), and urinary 17 keto steroids were normal when related to pubertal stage...
Delayed puberty is defined as the lack of secondary sexual characteristics from the age of 13 years in females and 14 years in males. The most common cause is constitutional delay in growth and puberty. It is more common in boys and most cases are familial, usually occurring in the same-...
We concluded that the development of adult patterns of social behavior in this genus is not climactic, but occurs slowly one to two years after physiological puberty has been reached. 展开 关键词: puberty mating aggression play courtship males Macaca fuscata ...
Earlier age of puberty has detrimental consequences for many aspects of health. Here, for the first time, we assessed the association of earlier puberty with sleep duration observationally and with validation using Mendelian Randomization. In the “Children of 1997” birth cohort (n = 8,327...
As age and morphological development increased, and males peripheralised, social behaviours (grooming and play) decreased, involvement in aggression increased, and sexual behaviour increased per time that males spent with the social group. Behavioural changes were gradual and male peripheralisation was ...
The age for the onset of puberty in this skeletal sample from Moundville, including both males and females, was estimated to be 14.95 卤 2.53 years. These results represent an initial application of this methodology to a small data set. The application of this method on a larger scale may ...
At 42 d of age, cloacal gland area (CAREA) and volume (CVOL), proportion of individuals that produced cloacal gland foam (PICF), and intensity of cloacal gland foam production (CFP) were examined in 60 representatives from each of these quail lines. CFP was quantified by subjective ...
In subject area: Veterinary Science and Veterinary Medicine Precocious puberty is defined as pubertal development occurring below the limits of age set for normal onset of puberty. From: Endocrine Secrets (Sixth Edition), 2013 About this pageAdd to MendeleySet alert ...
Our results indicate that puberty in WS occurred earlier than in published population controls; specifically, 90% of menstruating females reached menarche and 83% of pubertal males showed Tanner III pubic hair development prior to the age of 12 years. The sequence of pubertal development was normal...