title: 3-Methylethergalangin isolated from Alpinia officinarum inhibits pancreatic lipase.
abstract: The pancreatic lipase inhibitory activity of the rhizome of Alpinia officinarum (AO) and its antihyperlipidemic activity were measured. When the water extract of AO was fractionated stepwise with organic solvents, the ethyl acetate fraction exhibited the most potent inhibition. 3-Methylethergalangin was isolated from that fraction as an inhibitor of pancreatic lipase with an IC(50) value of 1.3 mg/ml (triolein as a substrate). AO and its ethyl acetate fraction significantly inhibited the serum TG level in corn oil feeding-induced triglyceridemic mice, and serum triglyceride (TG) and cholesterol in Triton WR-1339-induced hyperlipidemic mice. However, this compound and the AO ethyl acetate fraction did not show hypolipidemic activity in high cholesterol diet-induced hyperlipidemic mice. The results suggest that the hypolipidemic activity of AO and 3-methylethergalangin is due to the inhibition of pancreatic lipase.
authors.affiliation: Department of Food Science, Kyung Hee University, 1 Hoegi, Dongdaemun-ku, Seoul 130-701, Republic of Korea.
authors.forename: Ji-Eun
authors.initials: JE
authors.lastname: Shin
authors.forename: Myung
authors.initials: M
authors.lastname: Joo Han
authors.forename: Dong-Hyun
authors.initials: DH
authors.lastname: Kim
mesh_terms: D032429:Alpinia / Q000737:chemistry*; D000818:Animals; D001578:Benzopyrans / Q000302:isolation & purification / Q000494:pharmacology / Q000627:therapeutic use*; D002784:Cholesterol / Q000097:blood; D004195:Disease Models, Animal; D004365:Drugs, Chinese Herbal / Q000302:isolation & purification / Q000494:pharmacology / Q000627:therapeutic use*; D006949:Hyperlipidemias / Q000188:drug therapy*; D008049:Lipase / Q000037:antagonists & inhibitors*; D008075:Lipoproteins, HDL / Q000097:blood; D008077:Lipoproteins, LDL / Q000097:blood; D008297:Male; D051379:Mice; D008813:Mice, Inbred ICR; D010179:Pancreas / Q000201:enzymology*; D014280:Triglycerides / Q000097:blood
chemical_list: C480203:3-methylethergalangin; D001578:Benzopyrans; D004365:Drugs, Chinese Herbal; D008075:Lipoproteins, HDL; D008077:Lipoproteins, LDL; D014280:Triglycerides; D002784:Cholesterol; D008049:Lipase