Adipocyte Lipases and Defect of Lipolysis in Human Obesity
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چکیده
منابع مشابه
Adipocyte lipases and defect of lipolysis in human obesity.
The mobilization of fat stored in adipose tissue is mediated by hormone-sensitive lipase (HSL) and the recently characterized adipose triglyceride lipase (ATGL), yet their relative importance in lipolysis is unknown. We show that a novel potent inhibitor of HSL does not inhibit other lipases. The compound counteracted catecholamine-stimulated lipolysis in mouse adipocytes and had no effect on r...
متن کاملSplanchnic lipolysis in human obesity.
Elevated FFA concentrations have been shown to reproduce some of the metabolic abnormalities of obesity. It has been hypothesized that visceral adipose tissue lipolysis releases excess FFAs into the portal vein, exposing the liver to higher FFA concentrations. We used isotope dilution/hepatic vein catheterization techniques to examine whether intra-abdominal fat contributes a greater portion of...
متن کاملRegulation of adipocyte lipolysis.
In adipocytes the hydrolysis of TAG to produce fatty acids and glycerol under fasting conditions or times of elevated energy demands is tightly regulated by neuroendocrine signals, resulting in the activation of lipolytic enzymes. Among the classic regulators of lipolysis, adrenergic stimulation and the insulin-mediated control of lipid mobilisation are the best known. Initially, hormone-sensit...
متن کاملRegulation of forearm lipolysis in different types of obesity. In vivo evidence for adipocyte heterogeneity.
UNLABELLED Forearm and systemic adipose tissue free fatty acid (FFA) release was measured in eight nonobese, six lower-body obese, and eight upper-body obese women under basal, hyperinsulinemic, and hypoinsulinemic conditions to determine whether forearm fat is regulated in a similar manner as whole body fat. RESULTS Adipose tissue palmitate release was greater from forearm than whole body (5...
متن کاملAdipocyte triglyceride lipase expression in human obesity.
We have investigated the gene and protein expression of adipose triglyceride lipase (ATGL) and triglyceride (TG) lipase activity from subcutaneous and visceral adipose tissue of lean and obese subjects. Visceral and subcutaneous adipose tissue was obtained from 16 age-matched lean and obese subjects during abdominal surgery. Tissues were analyzed for mRNA expression of lipolytic enzymes by real...
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ژورنال
عنوان ژورنال: Diabetes
سال: 2005
ISSN: 0012-1797,1939-327X
DOI: 10.2337/diabetes.54.11.3190