introduction: different methods have been used to evaluate the beneficial effect of varicocelectomy; these include semen parameters and pregnancy rate. due to high biological variability of semen parameters, sperm functional test has been considered an efficient end point in assessment of fertility. therefore, the aim of this study was to evaluate the effect of varicocelectomy on semen paramete...

BACKGROUND Given the lack of consensus about the effect of traffic-derived pollutants on male fertility, we evaluated semen quality in men occupationally exposed to traffic. METHODS Semen quality was investigated in 85 men employed at motorway tollgates and in 85 age-matched men living in the same area. Semen, circulating sex hormones, methaemoglobin, sulphaemoglobin, carboxyhaemoglobin, lead...

brucellosis is one of the most common zoonotic diseases in iran and human brucellosis is endemic in all parts of the country. growth of brucella is slow and blood culture of these bacteria by use of classical methods is time-consuming. furthermore, in endemic area culture is required for definitive diagnosis. in the present study, direct urease test and acridine orange staining were tried on th...

In Vitro Fertilization (IVF) is the penetration of ovum cells by spermatozoa in a culture system and reproductive technique that useful for increasing efficiency sperm utilization. vitro fertilization applied to overcome problem infertility prevent birth defects. The success IVF influenced quality spermatozoa. order fulfill this, it necessary select spermatozoa, which separate good from total p...

Objective(s): Melatonin, an important hormone secreted by the epiphysis, is a powerful anti-oxidant with a high potential to neutralize medical toxins. The goal of this study was to demonstrate the beneficial effect of melatonin on epididymal sperm and reproductive parameters in mice treated with acetylsalicylic acid (ASA). Materials and Methods: Male adult mice were divided into four treatment...

Objective(s): Nicotine as a toxic substance leads to impairment of the reproductive system function. The aim of this study was to evaluate effects of melatonin on testicular alterations, sperm nuclear integrity, and epididymal sperm parameters in mice treated with nicotine.Materials and Methods: Male mice were divided into four groups. Group A received the vehicle, group B received nicotine 0.1...

It has long been known that certain organic dyes can photosensitize cells, leading to cellular damage or death. Recently, studies were performed on one such dye, Toluidine Blue, to determine the mechanism of its lethal photosensitization of bacteria (M. M. Mathews, J. Bacteriol. 85:322, 1963). These studies showed that the cellular site of the lethal action was the cytoplasmic membrane and its ...

Background: It is showed that methamphetamine has harmful effects on male reproductive system. The aim of this study was to investigate the effects of methamphetamine administration on testis weight, sperm count, sperm morphology, and chromatin status as well as sperm apoptotis followed by the cytochemical tests in a mouse model. Materials and Methods: Twenty four NMRI male mice were divided in...

OBJECTIVE The aim of this study was to determine whether Acridine Orange (AO) can be used as a routine procedure in a physician's office to detect sperm deoxyribonucleic acid (DNA) fragmentation in patients with varicoceles. MATERIAL AND METHODS Forty-five patients with a mean age of 30.4 years, who had been diagnosed with varicoceles by physical examination and 30 healthy males with a mean a...