Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0024523 (malabsorption)
 7,319 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Single blind administration of EPA-rich omega-3 fatty acids at 3 dose levels of 3g, 6g and 12g/d (each dose lasting 3 weeks was separated by 2 weeks on placebo) lowered plasma TG levels and lecithin cholesterol acyltransferase-molar esterification rate (LCAT-MER) activity (6.12g/d). Lipolytic enzymes activity (LPL and HL) remained unchanged at these doses. Fat malabsorption was unlikely because of unmodified plasma beta-carotene, retinol and alpha-tocopherol levels.
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PMID:Hypotriglyceridemic action of omega-3 fatty acids in healthy subjects does not occur by enhanced lipoprotein lipase and hepatic lipase activities. 258 47

In vitro experiments were conducted to characterize the activity and the stability of lipase from animal (crude porcine, CPL; lyophilized porcine, LPL), fungal (Rhizopus arrhizus, RAL; Aspergillus niger, ANL), and bacterial (two Pseudomonas spp., PL1, PL2; and Chromobacterium viscosum, CVL) sources when exposed to conditions associated with the glandular stomach. Activity was measured at pH 3 to 8, 40 C and then monitored in response to temperature (40 C), time of exposure (0 and 30 min), pH (3 and 7), and pepsin level (5, 50, and 500 U/mL). All lipases except ANL and CVL had maximum activity at pH 7 to 8. The optimal pH for ANL and CVL were 5 and 6 to 8, respectively. Exposure of lipases to 40 C and pH 7 for 30 min reduced the activity of all lipases except ANL. In contrast, 40 C increased ANL activity 2.5-fold. Although activity of all lipases was reduced by exposure to pH 3, it was nearly eliminated for CPL and LPL. Pepsin concentration had only minor effects on lipase activity and then only at high concentration. The results demonstrate that bacterial lipases (PL1, PL2, and CVL) and ANL are more stable under conditions that approximate the glandular stomach and may explain why dietary porcine lipase has been ineffective in preventing fat malabsorption in previous in vivo studies.
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PMID:Stability of porcine and microbial lipases to conditions that approximate the proventriculus of young birds. 983 41