Leptin concentration in seminal plasma of infertile men and relationship to semen parameters.
INTRODUCTION: Leptin is a 167 - amino acid polypeptide hormone, identified in 1994 by positional cloning in the mouse and human. This hormone is secreted by the white adipose tissue in proportion to body energy (fat) stored. Leptin functions as a satiety factor in the regulation of body weight. So far, many studies have pointed to a direct role of ... إقراء المزيد