Bothrops envenomation is complex and provokes prominent local tissue damage systemic disturbances, but little known about their effects on the male reproductive system. After intratesticular injection, bioactive peptide fraction (Bj-PF) obtained from jararaca snake venom changes structure of different stages seminiferous epithelium cycle in adult mice. For first time, we investigated whether Bj...

Background Ginseng is often referred to as the King of all herbs, and is found to be a promising agent to improve general well-being. Ginseng has also been reputed as an aphrodisiac, a disused to treat sexual dysfunction as well as to enhance sexual behavior. MaterialsAndMethods In this trial, thirty three adult male rats were divided into three groups. Experimental groups received gensing oral...

Although the goat is an economically important domestic mammal, there are very few data available in the literature for male reproductive biology in this species, mainly data related to testis morphometry obtained with high-quality light microscopy. Work recently developed in our laboratory found that the duration of the seminiferous epithelium cycle in goats is 10.6 days (França et al., 1999),...

UNLABELLED The testis is a radiosensitive tissue. It contains a large number of lobules, which in turn are composed of convoluted seminiferous tubules. The epithelium inside each tubule consists of a complex mosaic of supporting cells and germ cells of different sizes and degrees of maturation. These cells are known to have diverse sensitivity to radiation, those with the highest sensitivity be...

Objective Crocin, a carotenoid isolated from Crocus sativus L. (saffron), is a pharmacologically active component of saffron. Nicotine consumption can decrease fertility in males through induction of oxidative stress and DNA damage. The aim of this study is to determine the effects of crocin on reproductive parameter damages in male mice exposed to nicotine. MaterialsAndMethods In this experime...

Abstract The Chinese soft‐shelled turtle ( Pelodiscus sinensis ) is a reptile that undergoes seasonal reproduction. To produce enough spermatozoa during the mating season, immature can be quickly released from testis. Cell morphological changes related to maturation process are then completed in epididymis. In this way, develop simultaneously epithelium and lumen of seminiferous tubules, making...

The testis is the primary organ involved in male germ cell production. It is under the control of the hypothalamus, which regulates the secretion of the pituitary gonadotropins, luteinizing hormone (LH) and follicle stimulating hormone (FSH). The testis is composed of numerous thin, tightly coiled ducts known as the seminiferous tubules, which comprise about 90 percent of the testicular mass. T...