The current study aimed to detect specific types of ADAM proteins in the bovine sperm. Histology tissue male reproduction was involved with testis, head, body, and tail epididymis. Results showed that testis composed parenchyma contained seminiferous tubules which are surrounded by two layers externally tunica vaginalis internally albuginea. PAS positive lumen, epithelium body epididymis, Where...

background: in most mammals, the testis is always maintained at a lower temperature than that in the abdomen, and exposure of the testis to body temperature causes degeneration of germ cells. objective: in this research, the long effect of heat exposure on sperm parameters and microstructure of mouse testis were investigated. cryptorchid mouse were induced by exposure to abdominal heat. materia...

Theory predicts that males adapt to sperm competition by increasing their investment in testis mass to transfer larger ejaculates. Experimental and comparative data support this prediction. Nevertheless, the relative importance of sperm competition in testis size evolution remains elusive, because experiments vary only sperm competition whereas comparative approaches confound it with other vari...

introduction: cyclophosphamide (cp) is used for the treatment of various cancers. in spite of its therapeutic importance, a wide range of adverse effects such as reproductive toxicity has been observed following the administration of this drug in human and experimental animals. in the current study, we have investigated the adverse effects of cp on morphology and histology of testis rats. metho...

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 t...

background: ginger rhizome (zingiber officinale r., family: zingiberaceae) is used medicinally and as a culinary spice. objective: medicinal use of ginger dates back to ancient china and india. ginger and its constituents are stated to have antiemetic, antithrombotic, antihepatotoxic, anti-inflammatory, stimulant, cholagogue and antioxidant. it has been used since ancient time as medicinal and ...

channel activities, particularly those of calcium channels, have vital roles in the process of sperm maturation, motility and sperm-egg interaction. a group of the recently discovered ion channels associated with these processes is four novel channel-like proteins known as catsper (cation channel sperm) gene family. catsper1 and catsper2 show sperm specific expression patterns. however, neither...

the effect of subcutaneous injections of vitamin c on the seminal characteristics of markhoz bucks (2–4-year-old) was studied. the bucks, trained to serve an artificial vagina, were randomly allotted into three equal groups (n = 4) and received daily either zero (1 ml normal saline; control group), or 20 (vitc20 group) or 40 (vitc40 group) mg per kg body weight vitamin c from july 06, 2006 to o...

background: about 10% to 15% of infertile men have azoospermia, which could be obstructive or non-obstructive. diagnostic biopsy from the testis and recently testicular sperm extraction (tese) are the most precise investigations in these patients. testicular biopsy can be done unilaterally or bilaterally. the worth of unilateral or bilateral testicular biopsy in men with azoospermia is controve...

BACKGROUND Nicotine consumption can decrease fertility drive in males by inducing oxidative stress and DNA damage. Urtica dioica L (U.dioica) is a multipurpose herb in traditional medicine for which some anti-oxidative and anti-inflammatory properties have been identified. OBJECTIVE The main goal is to investigate whether the U.dioica could inhibit nicotine adverse effects on sperm cells viab...