Localization and function of myocardial lipolysis.

Abstract:

:Mobilization of triacylglycerol stored in heart cells is accomplished by the combined action of lysosomal (acid) lipase and microsomal monoacylglycerol lipase or carboxylesterase. Non(heparin)-releasable neutral or alkaline lipase is similar to non(readily)-releasable lipoprotein lipase (LPL). The enzyme is mainly localized extracellularly. Non(readily)-releasable LPL probably represents LPL in caveola or vacuolae of vascular endothelium and/or LPL on myocardial interstitium. It contributes to the uptake of lipoprotein constituents in heart cells. Glycerol, an endproduct of lipolysis, is not a reliable marker for the net mobilization of lipid stored in heart cells. It is formed both intra- and extracellularly, and does not reflect the rate of oxidation of part of free fatty acids formed.

journal_name

Basic Res Cardiol

authors

Hülsmann WC,Stam H,Jansen H

doi

10.1007/BF01908026

subject

Has Abstract

pub_date

1984-05-01 00:00:00

pages

268-73

issue

3

eissn

0300-8428

issn

1435-1803

journal_volume

79

pub_type

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