PMID- 22925829 OWN - NLM STAT- MEDLINE DCOM- 20131031 LR - 20131121 IS - 1873-3700 (Electronic) IS - 0031-9422 (Linking) VI - 84 DP - 2012 Dec TI - Studies of naturally occurring friedelane triterpenoids as insulin sensitizers in the treatment type 2 diabetes mellitus. PG - 116-24 LID - S0031-9422(12)00348-2 [pii] LID - 10.1016/j.phytochem.2012.07.025 [doi] AB - Type 2 diabetes mellitus (T2DM) is a rapidly expanding public epidemic and frequently results in severe vascular complications. In an attempt to find anti-diabetic agents, we report herein on the isolation, structural elucidation and bioactivity of nine friedelane-type triterpenes (1-9) and twenty two known ones (10-31) from the root barks of Celastrus vulcanicola and Maytenus jelskii. Their structures were elucidated on the basis of spectroscopic analysis, including 1D and 2D NMR techniques. Two compounds from this series (1 and 3) exhibited increased insulin-mediated signalling, which suggests these friedelane triterpenes have potential therapeutic use in insulin resistant states. CI - Copyright (c) 2012 Elsevier Ltd. All rights reserved. FAU - Ardiles, Alejandro E AU - Ardiles AE AD - Instituto Universitario de Bio-Organica Antonio Gonzalez and Departamento de Quimica Organica, Universidad de La Laguna, Avenida Astrofisico Francisco Sanchez 2, 38206 La Laguna, Tenerife, Spain. FAU - Gonzalez-Rodriguez, Agueda AU - Gonzalez-Rodriguez A FAU - Nunez, Marvin J AU - Nunez MJ FAU - Perestelo, Nayra R AU - Perestelo NR FAU - Pardo, Virginia AU - Pardo V FAU - Jimenez, Ignacio A AU - Jimenez IA FAU - Valverde, Angela M AU - Valverde AM FAU - Bazzocchi, Isabel L AU - Bazzocchi IL LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120825 PL - England TA - Phytochemistry JT - Phytochemistry JID - 0151434 RN - 0 (Antineoplastic Agents, Phytogenic) RN - 0 (Biological Products) RN - 0 (Triterpenes) RN - 0 (friedelane) SB - IM MH - Antineoplastic Agents, Phytogenic/isolation & purification/*pharmacology/therapeutic use MH - Biological Products/chemistry/isolation & purification/*pharmacology/therapeutic use MH - Celastrus/chemistry MH - Cell Line, Tumor MH - Cell Survival/drug effects MH - Diabetes Mellitus, Type 2/*drug therapy MH - Dose-Response Relationship, Drug MH - Drug Screening Assays, Antitumor MH - Humans MH - *Insulin Resistance MH - Maytenus/chemistry MH - Models, Molecular MH - Molecular Conformation MH - Plant Bark/chemistry MH - Plant Roots/chemistry MH - Stereoisomerism MH - Structure-Activity Relationship MH - Triterpenes/chemistry/isolation & purification/*pharmacology/therapeutic use EDAT- 2012/08/29 06:00 MHDA- 2013/11/01 06:00 CRDT- 2012/08/29 06:00 PHST- 2012/06/05 00:00 [received] PHST- 2012/07/26 00:00 [revised] PHST- 2012/07/30 00:00 [accepted] PHST- 2012/08/29 06:00 [entrez] PHST- 2012/08/29 06:00 [pubmed] PHST- 2013/11/01 06:00 [medline] AID - S0031-9422(12)00348-2 [pii] AID - 10.1016/j.phytochem.2012.07.025 [doi] PST - ppublish SO - Phytochemistry. 2012 Dec;84:116-24. doi: 10.1016/j.phytochem.2012.07.025. Epub 2012 Aug 25.