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单词 adiponectin
释义

adiponectin


ad·i·po·nec·tin

A5091800 (ăd′ə-pə-nĕk′tĭn)n. A polypeptide hormone that is secreted by fat cells and regulates glucose and lipid metabolism, especially by increasing insulin sensitivity and muscle uptake of glucose and by decreasing glucose production in the liver.
[Latin adeps, adip-, fat + Latin nectere, to bind; see ned- in Indo-European roots + -in.]
EncyclopediaSeeadipocyte

adiponectin


ad·i·po·nec·tin

(ad'i-pō-nek'tin), Protein hormone produced and secreted by adipocytes into the systemic blood circulation; causes sensitivity of peripheral tissues to insulin. [adipo- + L. necto, to fasten, + -in]

adiponectin

(ăd′ə-pə-nĕk′tĭn)n. A polypeptide hormone that is secreted by fat cells and regulates glucose and lipid metabolism, especially by increasing insulin sensitivity and muscle uptake of glucose and by decreasing glucose production in the liver.

Adiponectin

A circulating protein encoded by ADIPOQ on chromosome 3q27, which is secreted exclusively by mature adipocytes. It is a key adipokine in the control of fat metabolism and insulin sensitivity, and has direct anti-diabetic, anti-atherogenic and anti-inflammatory activities. It stimulates AMPK phosphorylation and activation in the liver and skeletal muscle, enhancing glucose utilisation and fatty acid hydrolysis. It antagonises TNF-alpha by down-regulating its expression in the liver, macrophages and elsewhere, and by counteracting its direct effects. It inhibits endothelial NF-kappa-B signalling by a cAMP-dependent pathway. It may play a role in cell growth, angiogenesis and tissue remodelling by binding and sequestering various growth factors with distinct binding affinities, depending on complex size—low, medium, or high molecular weight.

ad·i·po·nec·tin

(ad'i-pō-nek'tin) Protective adipokine that reduces lipid accumulation and endothelial adhesion resulting from vascular injury; increases skeletal muscle oxidation of free fatty acids; reduces hepatic glucose output; increases peripheral insulin sensitivity. [adipo- + L. necto, to fasten, + -in]

adiponectin

A cytokine derived from adipose tissue that has antidiabetic and antiatherosclerotic properties.
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