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Blood tests for lipase may be used to help investigate and diagnose acute pancreatitis and other disorders of the pancreas. [32] Measured serum lipase values may vary depending on the method of analysis. [citation needed] Lipase assist in the breakdown of fats in those undergoing pancreatic enzyme replacement therapy (PERT).
Lipase inhibitors can be found naturally in plants and can also be produced as pharmaceutical drugs.Some lipase inhibitors have been identified in Panax ginseng. [5] [6] Some active compounds with chalcone scaffold found in Glycyrrhiza glabra, Cassia mimosoides, Glycyrrhiza uralensis, Boesenbergia rotunda, apples and Morus alba also had strong effect against lipase.
CT, MRI, abdominal ultrasound or endoscopic ultrasound can be used for diagnosis. Amylase and lipase are 2 enzymes produced by the pancreas. Elevations in lipase are generally considered a better indicator for pancreatitis as it has greater specificity and has a longer half life. [31] However, both enzymes can be elevated in other disease states.
A similar mixture of enzymes is sold as pancrelipase, which contains more active lipase enzyme than does pancreatin. The trypsin found in pancreatin works to hydrolyze proteins into oligopeptides; amylase hydrolyzes starches into oligosaccharides and the disaccharide maltose; and lipase hydrolyzes triglycerides into fatty acids and glycerols.
Lipoprotein lipase has been shown to interact with LRP1. [ 51 ] [ 52 ] [ 53 ] It is also a ligand for α2M , GP330 , and VLDL receptors. [ 23 ] LPL has been shown to be a ligand for LRP2 , albeit at a lower affinity than for other receptors; however, most of the LPL-dependent VLDL degradation can be attributed to the LRP2 pathway. [ 23 ]
When lipase enzymes are phosphorylated, they can access lipid droplets and through multiple steps of hydrolysis, breakdown triglycerides into fatty acids and glycerol. Each step of hydrolysis leads to the removal of one fatty acid. The first step and the rate-limiting step of lipolysis is carried out by adipose triglyceride lipase (ATGL).
Hormone-sensitive lipase (EC 3.1.1.79, HSL), also previously known as cholesteryl ester hydrolase (CEH), [5] sometimes referred to as triacylglycerol lipase, is an enzyme that, in humans, is encoded by the LIPE gene, [6] and catalyzes the following reaction: (1) diacylglycerol + H 2 O = monoacylglycerol + a carboxylate
Hepatic lipase (HL), also called hepatic triglyceride lipase (HTGL) or LIPC (for "lipase, hepatic"), is a form of lipase, catalyzing the hydrolysis of triacylglyceride. Hepatic lipase is coded by chromosome 15 and its gene is also often referred to as HTGL or LIPC . [ 5 ]