conclusions it is concluded that dietary supplementation of l-carnitine has no effect on serum levels of estrogen, progesterone and testosterone in cats following ovariohysterectomy. long-term study is recommended. background the benefits of the addition of l-carnitine to the diet of cats to control weight gain after the removal of their ovaries have been highlighted recently. it is also used i...

objective: in this study aimed at evaluating the antifertility effect of the methanolic extract of abelmoschus esculentus (okro) fruit using albino wistar rat. methods: fifty adult male rats weighing 200g to 300g were weighed and divided into five groups of five rats each. group1 served as the control and were given water and normal rat chaw while groups 2, 3, 4 and 5 served as the test groups ...

the aims of the present study were to evaluate luteal activity in abadeh ecotype goat during summer and winter and also the effect of a single dose kisspeptin-10 injection on the secretion of luteinizing hormone (lh) in female anestrous goats. in the first study, progesterone (p4) concentration in 10 goats in summer (n = 6) and winter (n = 4) were measured every other day. moreover, in summer g...

introduction: follicle stimulating hormone (fsh) is one of the pituitary glycoproteines that it consists of two subunits alpha and beta. the beta subunit is responsible for the biological activity of fsh. the aim of present study was isolation of the β subunit coding sequence containing its signal sequence from human genome and then cloning of the isolated sequence in ppic9 shuttle vector under...

nitric oxide (no) is a simple ubiquitous signaling molecule and plays important roles in almost every biological system. recent evidences suggest that no may act as an endocrine molecule. the aim of this review is considering available literature on endocrine roles of no and/or its metabolites, i.e. nitrite and nitrate. existing data suggest the idea that no is a hormone that after production i...

background: estrogens include estoril (e3), estradiol and estrone (e1). these chemicals are produced in human and animal bodies as well as in synthetic chemicals (drugs). estrogens can enter water sources in different ways. when these chemicals enter the human body through water and wastewater, they have the ability to mimic or disrupt the normal estrogen activities in humans and animals. estro...

resistance to thyroid hormone is an uncommon condition. we report the clinical and laboratory findings of a case with both resistance to thyroid hormone and, a reduced capacity to produce and respond to thyroid hormone. rth is a disorder characterized by elevated circulating thyroid hormones, state of non-suppressed pituitary tsh secretion and refractoriness to hormone action in peripheral tiss...