background: many studies have been carried out on the relationship between testosterone levels and depression in the elderly. due to the different results of these studies and the importance of depression in old age, this study seems to be necessary. methods: this cross- sectional study is a part of the amirkola health and aging project (ahap) that involves people aged 60 and above living in am...

Background: Spermatogenesis is the major factor of male fertility which is pendent on hormones specially testostrone. Testostrone signalling leads to activation of some kinases which are required for progression and maintaining of spermatogenesis. On the other hand, oxidative stress, as the most prevalent factor, influences on fertility. Also, it was shown that chronic oxidative stress in rat t...

background polycystic ovarian syndrome (pcos) is the most common hormonal disorder in reproductive-age women. this syndrome is associated with many complications, so treatment of the disorder is usually warranted. objectives to evaluate the effects of a combined low-dose oral contraceptive (ld) and vitex agnus on the improvement of clinical and paraclinical parameters of pcos. methods this trip...

previous studies have indicated that fish oil intake wi1l improve semen quality in some mammals and birds. the aim of this study was to investigate the effect of dietary fish oil on reproductive performance in ram. eight zandi rams were divided into two groups and fed either a control diet or a supplemented diet with fish oil. both of the diets were isocaloric and isonitrogenous and formulated ...

Background: Various investigations have established that carbon tetrachloride (CCl4), a clear, colourless, volatile, heavy and nonflammable liquid, causes generation of free radicals in many tissues such as testis. a wide range of side effects such as reproductive toxicity has been observed following the administration of this liquid in experimental animals. Numerous studies have shown that amo...