搜索结果: 1-14 共查到“sexual maturation”相关记录14条 . 查询时间(0.085 秒)
Sexual maturation effect on physical fitness in girls: a longitudinal study
flexibility motor development sprint velocity standing long jump
2010/9/16
The purpose of the present longitudinal study was to find associations between sexual maturation dynamics and improvement in performance of fitness tests. 34 11- to 13- year-old girls performed standi...
The changing profiles of L-ornithine decarboxylase and S-adenosyl-L-methionine decarboxylase activities in testicular cell types during sexual maturation of male rats
L-ornithine decarboxylase S-adenosyl-L-methionine testicular cell types
2009/2/23
To understand the involvement of polyamines in testicular maturation and spermatogenesis, the activity of two enzymes involved in the polyamine synthetic pathway, L-ornithine decarboxylase (ODC) a...
Sexual maturation in underfed weight-matched rats. A test of the“critical body weight”theory of pubertal timing in males
Sexual maturation underfed weight-matched rats critical body weight
2009/2/23
A popular current theory proposes that the timing of puberty is related to attainment of a critical level of body weight or body fatness. These critical body weight and critical body fat theories ha...
Concentrations of free testosterone, total testosterone, and androgen binding protein in the peripheral serum of male rats during sexual maturation
free testosterone total testosterone androgen binding protein peripheral serum male rats
2009/2/23
To investigate the relationship between free testosterone and sexual maturation in the male rat, animals were decapitated every 5 days from 25 through 75 days of life. Serum was assayed for androgen...
Temporal relation between leptin and various indices of sexual maturation in the male rat
Puberty adipose tissue testosterone gonadotropins
2009/2/18
Recent studies in humans and rhesus monkeys have suggested the possibility that the adipose tissue hormone leptin has a stimulatory and/or permissive effect on the onset of puberty in the male. We...
Transforming growth factor-beta1（TGF-beta1）in penile and prostate growth in the rat during sexual maturation
Penis androgen receptors
2009/2/17
The goal of this study was to determine whether transforming growth factor-beta1 (TGF-beta1) may contribute to the arrest of penile growth and the down-regulation of androgen receptors (AR) that occ...
Temporal appearance of antisperm antibodies during sexual maturation of rats after obstruction of the vas deferens
Autoantibodies spermatozoa vas deferens sparmatic
2009/2/13
The appearance of serum antisperm antibodies was studied during the maturation of rats in which the vas deferens was obstructed prepubertally. Vasa deferentia were ligated and divided bilaterally in...
Segment-Specific Decrease of Both Catecholamine Concentration and Acetylcholinesterase Activity Are Accompanied by Nerve Refinement in the Rat Cauda Epididymis During Sexual Maturation
Segment-Specific Catecholamine Concentration Acetylcholinesterase Activity Nerve Refinement Rat
2008/12/30
In the present work, histochemical and biochemical studies were conducted to analyze changes in the pattern of autonomic innervation during sexual maturation, using the rat epididymis as a model....
Leptin secretion from the epididymal fat pad is increased by the sexual maturation of the male rat
epididymal fat pad sexual maturation male rat
2008/12/26
FloridaAlthough leptin has been implicated as an important factor in triggering the onset of puberty in females, much less is known about the role of this adipose tissue hormone in the sexual maturati...
Serotonin Concentration, Synthesis, Cell Origin, and Targets in the Rat Caput Epididymis During Sexual Maturation and Variations Associated With Adult Mating Status：Morphological and Biochemical Studies
5-hydroxytryptamine tryptophan hydroxylase neuroendocrine cells male reproduction serotonin receptor spermatozoa
2008/12/24
The caput epididymis of some mammals contains large quantities of serotonin whose origin, targets, and physiological variations have been poorly studied. We combined morphological and biochemical...
Segment-Specific Decrease of Both Catecholamine Concentration and Acetylcholinesterase Activity Are Accompanied by Nerve Refinement in the Rat Cauda Epididymis During Sexual Maturation
Autonomic innervation male reproductive tract development neurons age
2008/12/3
In the present work, histochemical and biochemical studies were conducted to analyze changes in the pattern of autonomic innervation during sexual maturation, using the rat epididymis as a model. ...
期刊信息
篇名
L-prostaglandin D synthase expression and regulation in mouse testis and epididymis during sexual maturation and testosterone treatment after castration.
语种
英文
撰写或编译
作者
Zhu H,Ma H,Ni H,Ma XH,M...
Effect of the chronological age and sexual maturation on the time to exhaustion at maximal aerobic speed
Maximal oxygen uptake Running Children
2010/9/16
The purposes of this study were: a) to verify the effect of chronological age and sexual maturation on the time to exhaustion at VO2max (tlim) and; b) to examine the reproducibility of tlim in boys ag...
Effect of Temperature on Development, Sexual Maturation Time, Food Consumption and Body Weight of Schistocerca gregaria Forsk. (Orthoptera: Acrididae)
S. gregaria development sexual maturation food consumption body weight
2010/3/30
This study was carried out to determine the effect of temperature on the development, sexual maturation time, food consumption and body weight of S. gregaria, Forsk., at 25 and 30ºC. The insects ...