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Lipolysis / l ɪ ˈ p ɒ l ɪ s ɪ s / is the metabolic pathway through which lipid triglycerides are hydrolyzed into a glycerol and free fatty acids. It is used to mobilize stored energy during fasting or exercise , and usually occurs in fat adipocytes .
A diagrammatic illustration of the process of lipolysis (in a fat cell) induced by high epinephrine and low insulin levels in the blood. Epinephrine binds to a beta-adrenergic receptor in the cell membrane of the adipocyte, which causes cAMP to be generated inside the cell.
Vertebrates (including humans) use both sources of fat to produce energy for organs such as the heart to function. [6] Since lipids are hydrophobic molecules, they need to be solubilized before their metabolism can begin. Lipid metabolism often begins with hydrolysis, [7] which occurs with the help of various enzymes in the digestive system. [2]
This article features a BMI chart for women 18 and older. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach us. Sign in. Mail. 24/7 Help. For ...
In humans, the healthy amount of white adipose tissue varies with age, but composes between 6–25% of body weight in adult men and 14–35% in adult women. [ 1 ] [ additional citation(s) needed ] Its cells contain a single large fat droplet , which forces the nucleus to be squeezed into a thin rim at the periphery.
16956 Ensembl ENSG00000175445 ENSMUSG00000015568 UniProt P06858 P11152 RefSeq (mRNA) NM_000237 NM_008509 RefSeq (protein) NP_000228 NP_032535 Location (UCSC) Chr 8: 19.9 – 19.97 Mb Chr 8: 69.33 – 69.36 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Lipoprotein lipase Identifiers EC no. 3.1.1.34 CAS no. 9004-02-8 Databases IntEnz IntEnz view BRENDA BRENDA entry ExPASy NiceZyme ...
Until recently, inspiring representations of women over 40 in fiction or on screen were thin on the ground. But the middle-aged heroine is having a moment – and, far from glossing over her age ...
The Framingham Heart Study and other epidemiological studies have found a correlation between lipoproteins and cardiovascular disease (CVD). [7] Lipoproteins are generally a major target of study in lipidology since lipids are transported throughout the body in the form of lipoproteins.