Endocrine Abstracts

Hypothalamic neuropeptide PACAP is a potent endogenous stimulator of adenylate cyclase synthesis in gonadotrope cells. Previously we found that, in contrast to GnRH, also Cu–GnRH complex is able to induce cAMP/PKA pathway activity.The aim of the study was to determine whether Cu–GnRH can act via GnRH-R and/or PAC-1 receptors to stimulate cAMP/PKA intracellular signaling. Moreover, we compared PACAP and Cu–GnRH ability to activate cGMP/PKG ...

Introduction: Interleukin 18 (IL-18) is a proinflammatory and proatherogenic cytokine which is associated with obesity, insulin resistance and cardiovascular disease. It is supposed that insulin has anti-inflammatory action. The aim of the present study was to estimate serum IL-18 concentration in young healthy population, its regulation by hyperinsulinemia and relationship with insulin sensitivity and glucose and lipid oxidation.Methods: We studied 36 h...

Introduction: Numerous studies indicate an association between low-grade chronic inflammation and predisposition to type 2 diabetes and atherosclerosis. IL12 is a proinflammatory cytokine with proatherogenic properties. IL12 is a disulfide-linked, 70 kDa (p70) heterodimeric glycoprotein composed of a 40 kDa (p40) subunit and a 35 kDa (p35) subunit. Many data reported higher levels of p40 subunit than total IL12. The aim of the present study was to investigate the influence of ...

Introduction: Visfatin is a protein secreted by adipose tissue which was discovered as a protein with insulin-mimetic properties. Experimental and clinical studies demonstrated that visfatin can be involved in the pathogenesis of insulin resistance. It was demonstrated that plasma visfatin is elevated in insulin resistant states i.e. obesity, type two diabetes mellitus, PCOS. In vitro study showed that insulin inhibits visfatin release from adipocytes. The aim of the pr...