BACKGROUND The reproductive system is one of the organs that are affected by lead. Lead can cause loss of libido and fertility in men, and menstrual disturbances and spontaneous abortion in woman. OBJECTIVE The purpose of this cross-sectional study was assessment of dose-response relationship between blood lead level (BLL) and sex hormones levels in lead exposed male workers. MATERIALS AND ...

Hormones have an influence on many tissues and organs, including the cardio-vascular system (CVS). Depending on their activity on CVS, they can be divided into 4 groups: having hypertensive or hypotensive influence and chronotropic positive or negative action. Endocrine regulation in CVS may occur in many ways. Apart from hormones usually connected with CVS regulation, other more recently, disc...

An animal-borne blood sampler with data-logging functions was developed for phocid seals, which collected two blood samples for the comparison of endocrinological/biochemical parameters under two different conditions. The sampler can be triggered by preset hydrostatic pressure, acceleration (descending or ascending), temperature, and time, and also manually by light. The sampling was reliable w...

the aim of this study was to show the effect of four feeding regimes on thyroid hormones concentrations, growth performance and food coefficient in rainbow trout applied through 4 treatments and 3 replications in winter 2006. in this research, samples of rainbow trout with an initial mean weight (so) 47.19±0.42 used in each rearing unite. fish were fed twice a day ad libitum as follows: treatme...

Allostatic load (AL) is a complex clinical construct, providing a unique window into the cumulative impact of stress. However, due to its inherent complexity, AL presents two major measurement challenges to conventional statistical modeling (the field's dominant methodology): it is comprised of a complex causal network of bioallostatic systems, represented by an even larger set of dynamic bioma...

Cimetidine is effective drugs on male reproductive system by its effect semen characteristic or parameters such as sperm motility, morphology and count, also cimetidine sexual hormones, were testosterone, FSH LH. In this investigation, 20 rats randomly classified into two groups, Control group(G1): This group contain 10 receiving normal saline group( G2): 100mg/kg. B.W. from group, during the p...

background: hormonal changes as a factor influencing the emotional state of women have an important role in the incidence of suicide. the aim of this study is to investigate changes in fsh-lh, estrogen, and progesterone hormones in women attempting suicide by drugs and chemicals. methods: in this cross-sectional study, women of reproductive diagnosed with drug and chemical poisoning who were ho...

Minerals and vitamins play an important role in animal nutrition with beneficial effects on animal reproductive performance. To investigate this issue, 44 Ghezel ewes weighing 55±  2 kg (Mean±SD) and 2-3 years old were randomly divided into groups (n=11), to investigate the effect of the selenium and vitamin E supplementation on blood hormones and metabolites and possible reproductive performan...

The objective: to study the concentration of estradiol, progesterone, follicle-stimulating and luteinizing hormones, testosterone, prolactin cortisol in women with abnormal uterine bleeding (AUB) chronic psycho-emotional stress.Materials methods. We examined 100 reproductive age AUB stress (main group) 50 patients without (comparison group). 30 were included control group. diagnosis was made on...

Several clinical and experimental studies have demonstrated gender dimorphism in immune and organ responsiveness and in the susceptibility to and morbidity from shock, trauma, and sepsis. In this respect, cell-mediated immune responses have been shown to be depressed in males following trauma-hemorrhage, whereas they were aintained/enhanced in proestrus females. Furthermore, sex hormones have b...