Hormones are a vital component of reproductive processes, intimately acting on both sexes through proteins of pituitary origin that affect the gonads, and steroids of gonadal origin that affect the accessory organs and secondary sexual characters. Reproductive behavioral success is the capability of an organism to outcompete other organisms for a mate and to achieve copulation. Aside from its c...

The laboratory rat, a non-photoperiodic rodent, exhibits seasonal fluctuations of melatonin. Melatonin has been found to be readily transferred from the maternal to the fetal circulation. No data exist on the possible influence of maternal pineal gland upon seasonal variations of the offspring. The aim of the present study was to asses the influence of the maternal melatonin rhythm on the offsp...

the inability to have a child is a baleful event for millions of couples in their life, and a large percentage of them have a personal frustration. the problem of infertility in couples is distributed equitably between the two sexes. among different methods, medicinal plants have been used in many nations to treat male infertility problems. these medicinal herbs are used to treat sperm disorder...

During the Islamic lunar month of Ramadan millions of Muslims abstain from drinking and eating from dawn to sunset. The objective of this study was to investigate the effect of intermittent Islamic fasting on reproductive function, hypothalamic-pituitary-thyroid axis and the peripheral metabolism of thyroid hormones in men. We measured serum levels of FSH, LH, testosterone, prolactin, TSH,...

During the Islamic lunar month of Ramadan millions of Muslims abstain from drinking and eating from dawn to sunset. The objective of this study was to investigate the effect of intermittent Islamic fasting on reproductive function, hypothalamic-pituitary-thyroid axis and the peripheral metabolism of thyroid hormones in men. We measured serum levels of FSH. LH, testosterone, prolactin, FSH, T4...