PMID- 24395372 OWN - NLM STAT- MEDLINE DCOM- 20150202 LR - 20140701 IS - 1097-0010 (Electronic) IS - 0022-5142 (Linking) VI - 94 IP - 11 DP - 2014 Aug TI - Murraya koenigii (L.) Spreng. ameliorates insulin resistance in dexamethasone-treated mice by enhancing peripheral insulin sensitivity. PG - 2282-8 LID - 10.1002/jsfa.6555 [doi] AB - BACKGROUND: Murraya koenigii (L.) Spreng. is an important medicinal plant used traditionally as an antiemetic, antidiarrhoeal agent and blood purifier and as a medicine for a variety of ailments. This study investigated the effects of ethanolic extract of M. koenigii (MK) on diabetes-associated insulin resistance induced in mice by chronic low-dose injection of dexamethasone. RESULTS: Mice treated with dexamethasone exhibited hyperglycaemia and impaired glucose tolerance. Treatment with MK reduced the extent of dexamethasone-induced hyperglycaemia and decreased insulin resistance as indicated by improved glucose tolerance and increased insulin-stimulated AKT phosphorylation in skeletal muscle tissue. Further evaluation in clonal skeletal muscle cell lines suggested that MK increased glucose uptake in L6 skeletal muscle cells by increasing cell surface GLUT4 density via an AKT-mediated pathway. CONCLUSION: MK can ameliorate dexamethasone-induced hyperglycaemia and insulin resistance in part by increasing glucose disposal into skeletal muscle. CI - (c) 2014 Society of Chemical Industry. FAU - Pandey, Jyotsana AU - Pandey J AD - Division of Biochemistry, CSIR-Central Drug Research Institute, Lucknow, 226001, India. FAU - Maurya, Ranjani AU - Maurya R FAU - Raykhera, Rahul AU - Raykhera R FAU - Srivastava, Mahendra N AU - Srivastava MN FAU - Yadav, Prem P AU - Yadav PP FAU - Tamrakar, Akhilesh K AU - Tamrakar AK LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140213 PL - England TA - J Sci Food Agric JT - Journal of the science of food and agriculture JID - 0376334 RN - 0 (Blood Glucose) RN - 0 (Glucose Transporter Type 4) RN - 0 (Insulin) RN - 0 (Plant Extracts) RN - 7S5I7G3JQL (Dexamethasone) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) SB - IM MH - Animals MH - Blood Glucose/*metabolism MH - Dexamethasone MH - Glucose Intolerance/blood/chemically induced/*drug therapy MH - Glucose Transporter Type 4/metabolism MH - Hyperglycemia/blood/chemically induced/*drug therapy MH - Insulin/blood MH - *Insulin Resistance MH - Male MH - Mice MH - *Murraya MH - Muscle Fibers, Skeletal/*drug effects/metabolism MH - Phosphorylation MH - *Phytotherapy MH - Plant Extracts/pharmacology/therapeutic use MH - Plant Leaves MH - Proto-Oncogene Proteins c-akt/metabolism OTO - NOTNLM OT - Murraya koenigii OT - dexamethasone OT - glucose uptake OT - insulin resistance EDAT- 2014/01/08 06:00 MHDA- 2015/02/03 06:00 CRDT- 2014/01/08 06:00 PHST- 2013/08/21 00:00 [received] PHST- 2013/11/19 00:00 [revised] PHST- 2014/01/06 00:00 [accepted] PHST- 2014/01/08 06:00 [entrez] PHST- 2014/01/08 06:00 [pubmed] PHST- 2015/02/03 06:00 [medline] AID - 10.1002/jsfa.6555 [doi] PST - ppublish SO - J Sci Food Agric. 2014 Aug;94(11):2282-8. doi: 10.1002/jsfa.6555. Epub 2014 Feb 13.