Leptin as a mediator between obesity and cardiac dysfunction

A Review of the Relationship between Obesity and Some Sexual Dysfunction in Men and Women

Introduction: Obesity, one of the major growing problems of the present century is reaching pandemic proportions. Today, a large percentage of men and women of all ages suffer from obesity. The relationship between obesity and its effect on sexual dysfunction through different mechanisms has been documented. Obesity, a risk factor for cardiovascular and metabolic diseases with impaired immune s...

Leptin-induced endothelial dysfunction in obesity.

Hyperleptinemia accompanying obesity affects endothelial nitric oxide (NO) and is a serious factor for vascular disorders. NO, superoxide (O(2)(-)), and peroxynitrite (ONOO(-)) nanosensors were placed near the surface (5+/-2 microm) of a single human umbilical vein endothelial cell (HUVEC) exposed to leptin or aortic endothelium of obese C57BL/6J mice, and concentrations of calcium ionophore (C...

obesity, leptin and leptin receptors

Hepcidin in obese children as a potential mediator of the association between obesity and iron deficiency.

CONTEXT Obesity and iron deficiency are two of the most common nutritional disorders worldwide. Several studies found higher rates of iron deficiency in obese than in normal-weight children. Hepcidin represents the main inhibitor of intestinal iron absorption, and its expression is increased in adipose tissue of obese patients. Leptin is able, in vitro, to raise hepcidin expression. OBJECTIVE...

Reduction of obesity, as induced by leptin, reverses endothelial dysfunction in obese (Lep(ob)) mice.

Obesity is a major health care problem and is associated with significant cardiovascular morbidity. Leptin, a neuroendocrine hormone released by adipose tissue, is important in modulating obesity by signaling satiety and increasing metabolism. Moreover, leptin receptors are expressed on vascular endothelial cells (ECs) and mediate angiogenesis. We hypothesized that leptin may also play an impor...