objectives: the prevalence of consanguineous marriage is about 30 % in iran and this can increase the probability of incidence of genetic impairments such as hearing impairments. hearing impairment in comparison with other hereditary disorders is the most incident. the purpose of this survey is to identify the prevalence of consanguinity among the parents of sensoryneural hearing impaired stude...

during hibernation period from mid october to late march, we removed testis of laudakia caucasia. based on histological and statistical analyses we obtained two phases in spermatogenesis in this lizard as follows: (a) from october to december, in which the spermatogenesis is inactive and (b) from january to march, in which the spermatogenesis is active. spermatogenesis during late hibernation o...

Effect of ginger (Zingiber officinale R.) on metiram-inhibited spermatogenesis and induced apoptosis in albino miceSaber A. Sakr, Gamal M. Badawy

PURPOSE To review the acute and chronic pathological effects of sulfur mustard on the genitourinary system and male fertility. MATERIALS AND METHODS We searched PubMed and Google Scholar to find studies related to the sulfur mustard-induced genitourinary effects and male infertility. Information in the abstracts of non-English related papers as well as those in the proceedings of congresses o...

To investigate the effect of pentoxifylline (PTX) on spermatogenesis dysfunction induced by intermittent hypobaric hypoxia (IHH) and unveil the underlying mechanism, experimental animals were assigned to Control, IHH+Vehicle, and IHH+PTX groups and exposed to 4 cycles of 96 h of hypobaric hypoxia followed by 96 h of normobaric normoxia for 32 days. PTX was administered for 32 days. Blood and ti...

OBJECTIVE To describe clinical and histological features observed in the setting of an unusual complex translocation involving three autosomes (9, 13, and 14) identified in an otherwise healthy male referred for infertility consultation. MATERIALS AND METHODS The patient was age 30 and no family history was available (adopted). Total azoospermia was confirmed on multiple semen analyses. Perip...

I investigated the seasonal testicular histology and acystic lobular spermatogenesis in Western Lesser Siren, Siren intermedia nettingi, from periodic sampling of this salamander over a span 21 yr (1994-2015) northeastern Arkansas. My results include following general findings: 1) largest lobules occurred primarily January-February during spermiogenesis spermatozoa maturation; 2) regression spe...

Objective: To determine the impact of Covid-19 vaccines on sperm quality. Study Design: Case control study Place and Duration Study: Department Diabetes & Endocrinology, Chandka Medical College Hospital Larkana from 1st July 2022 to 31st December 2022. Methodology: Patients were enrolled as 50 those who had PCR confirmed Covid 19 history never got Covid-19. On this basis cases a placed in g...

BACKGROUND Irradiation or chemotherapy that suspend normal spermatogenesis is commonly used to treat various cancers. Fortunately, spermatogenesis in many cases can be restored after such treatments but knowledge is limited about the re-initiation process. Earlier studies have described the cellular changes that happen during recovery from irradiation by means of histology. We have earlier gene...

Mammalian reproduction is dynamically regulated by the pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH). These hormones are synthesized in the pituitary gland following stimulation by the gonadotropin-releasing hormone (GnRH) and act by stimulating steroid production and gametogenesis in both males and females. Male adult Sprague-Dawley rats (120 - 140 g)...