Leptin and leptin-receptor polymorphisms in fertile and infertile men

A Comparative Study of Serum and Follicular Fluid Leptin Concentrations among Explained Infertile, Unexplained Infertile and Fertile Women

Background The relationship between metabolism and reproduction has been always considered as an important topic in female endocrinology. It seems that leptin is one of the involved factors in infertility. Leptin, in addition to regulating body weight plays an important role in regulation of endocrine, reproductive and immune systems. The aim of this stduy is to compare serum and follicular flu...

Leptin concentrations, leptin receptor polymorphisms, and colorectal adenoma risk.

Obesity has been shown to be associated with an increased risk of both colorectal cancer and adenomatous polyps. One mechanism underlying this relationship may involve the growth-promoting effects of the circulating hormones associated with obesity, such as leptin. We conducted a gastroenterology clinic-based, case-control study to evaluate the relationship between circulating leptin concentrat...

Expression of leptin and leptin receptor transcript in ovine corpus luteum

Background: Leptin, the product of the obesity (ob) gene, acts as a signaling adipokine for modulating food intake, energy metabolism and reproductive functions in mammals. Leptin’s effects on the reproductive system at various levels of the hypothalamic-pituitary-gonadal axis have been established. Moreover, the direct and local effect of leptin on bovine oocyte maturation and corpus luteum fu...

Detection of leptin and leptin receptor mRNA expression in the bovine t

Comparison of leptin concentrations between infertile women with polycystic ovary syndrome and fertile women

BACKGROUND Some studies propose that changes in leptin concentrations (above or under the normal range) result in infertility. Therefore, we investigated serum and follicular fluid leptin concentrations in infertile women with polycystic ovary syndrome (PCOS). OBJECTIVE To study serum and follicular fluid leptin concentrations in infertile women with PCOS. MATERIALS AND METHODS We conducted...