background: the prevalence of vitamin d deficiency and its causative factors has been estimated more frequently in elder popula­tion, women, and patients with osteoporosis in different countries, but this issue is less defined in male population within different age groups especially in asian countries. therefore, we studied the role of effective factors in vitamin d defi­ciency and its prevale...

conclusions the inhibition of mini-puberty period in male rats was demonstrated to have an effect on their testicular function to some extent. results serum t and lh levels peaked at two hours after birth, while fsh peaked at hour 0, and bilateral testicular weight peaked at four hours after birth. the rats that underwent ether inhalation five minutes after birth had markedly reduced serum horm...

results results showed that dex 1 significantly increased, while dex 30 and groups treated with zinc 10 mg/kg and zinc 20 mg/kg decreased total immobility time as compared to that of saline group. also there was a significant decrease of total immobility time when zinc administered to rats already received dex 1, compared with that of control group. conclusions the current study findings sugges...

background: azoospermia is the medical condition of a man not having any measurable level of sperm in his semen. follicle stimulating hormone (fsh) is a member of the glycoprotein hormone family that plays an important role in human reproduction because of its essential role in normal spermatogenesis. various single nucleotide polymorphisms (snps) have been reported within fsh receptor (fshr) g...

background: globozoospermia is a severe form of teratozoospermia (incidence < 0.1%) in infertile men that is characterized by round headed sperm and acrosomeless in semen. objective: to compare the semen parameters, protamine deficiency, and apoptosis in ejaculated spermatozoa between globozoospermic and normozoospermic men. materials and methods: thirty six semen samples were divided into two ...

background: pentoxifylline (px) is a methyl xanthine derivative that influences the sperm motion characteristics and l-carnitine (l-c) is an amino acid that is naturally produced in the body. in general, separate administration of px and l-c has been reported to be effective on preserving sperm motility in vitro, and also when is consumed orally by the idiopathic oligoasthenoteratozoospermia (i...

infertility is one of the most stressful conditions amongst married couples. male factor infertility is implicated in almost half of these cases. recent advances in the field of reproductive medicine have focused the attention of many researchers to consider reactive oxygen species (ros) as one of the mediators of infertility causing sperm dysfunction. although, ros is involved in many physiolo...

background: previous researches about the effect of smoking on semen quality are contradictory, and the mechanism behind the harmful effect of smoking on semen quality still remains unclear until today. objective: the objectives of this study are evaluation of the relationship between smoking and fertility, investigation of the effects of cigarette smoking on sperm parameters and detection of p...

aim and background: insomnia, one of the prevalent disorders, in many cases is considered as a sign associated with physical and mental disorders. the present study aimed to investigate the effectiveness of cognitive-behavioral group therapy on these symptoms among male prisoners. methods and materials: subjects of this experimental study were 28 male prisoners in central prison of shiraz who w...