The first volume of the Endocrine Function of the Human Testis overviews the feedback system between the testis and the central nervous system. The testis secretes androgens which act at the hypothalamus and pituitary to modulate secretion of hypothalamic releasing factors and pituitary gonadotrophins. LH and FSH influence testicular androgen secretion and sperm formation. This volume is the pr...

PURPOSE Retractile testis is considered to be a variant of normal testis in prepubertal boys. There is no agreed-upon management of retractile testis. The aim of this study was to provide data on the long-term outcomes of patients with retractile testis. MATERIALS AND METHODS This study retrospectively reviewed the medical record of 43 boys who were referred for suspected undescended or retra...

In neonates (0 to 3-4 months), the testis contained a mean number of 4.6 X 10(6) Leydig cells representing 4.2 % of its volume; Leydig cell cytoplasm contained 10.2 % of SER. In infants (up to 45 months), Leydig cells regressed but their number increased; their volume density did not change. Leydig cell cytoplasmic volume (454 microns3 ), which was about 2.5-fold less than in neonates (1 119 mi...

Background and Objective: It is conceivable that caffeine consumption would induce gonadal changes. The aim of this study is to assess the impact of embryonic caffeine exposure on rat testis and prostate. Materials and Methods: Female rats were divided into (n=7): A control, only received drinking water. B and C groups received caffeine low dose (26 mg/kg) and high dose (45 mg/kg) respectively...

background: γ-aminobutyric acid (gaba) is considered to be the predominant inhibitory neurotransmitter in mammalian central nervous systems (cns). there are two major classes of gaba receptors: gabaars and gababrs. the gabaa receptor is derived from various subunits such as alpha1-alpha 6, beta1-beta 3, gamma1-gamma 4, delta, epsilon, pi, and rho1-3. intensive research has been performed to un...

BACKGROUND Busulfan(Bus) is a chemotherapy drug that is widely used for cancer treatment. However, administration of busulfan may cause temporary or permanent sterility in male patients. Therefore, reduction of this side is necessary. OBJECTIVE evaluation of the protective effects of L-carnitine and testis homogenized tissue(THT) on sperm parameters and the testis structure after busulfan tre...

Information regarding the domestic cat as a model animal in biomedical research has not been widely carried out. This study was aimed to see correlation between testicular weight, volume and total sperm count left testicle, right testicle both testes. In addition, this examine effect of weight on quantitative histomorphometry testes cats Indonesia. The results showed that there no difference Te...

objective(s) in recent years concerns have been raised regarding the incidence of male reproductive disorders from exposure to endocrine disruptors. so, chronic effects of di(2-ethylhexyl)phthalate were studied on histological and stereological structure of testis in adult wistar rats. materials and methods thirty two adult wistar rats were randomly divided in four equal experiment groups; oil ...