잠시만 기다려 주세요. 로딩중입니다.

Clove and Its Active Compound Attenuate Free Fatty Acid-Mediated Insulin Resistance in Skeletal Muscle Cells and in Mice

Journal of Medicinal Food 2017년 20권 4호 p.335 ~ 344
Ghaffar Safina, Afridi Shabbir Khan, Aftab Meha Fatima, Murtaza Munazza, Hafizur Rahman M., Sara Sara, Begum Sabira, Waraich Rizwana Sanaullah,
소속 상세정보
 ( Ghaffar Safina ) - University of Karachi International Center for Chemical and Biological Sciences
 ( Afridi Shabbir Khan ) - University of Karachi International Center for Chemical and Biological Sciences
 ( Aftab Meha Fatima ) - University of Karachi International Center for Chemical and Biological Sciences
 ( Murtaza Munazza ) - University of Karachi International Center for Chemical and Biological Sciences
 ( Hafizur Rahman M. ) - University of Karachi International Center for Chemical and Biological Sciences
 ( Sara Sara ) - University of Karachi International Center for Chemical and Biological Sciences
 ( Begum Sabira ) - University of Karachi International Center for Chemical and Biological Sciences
 ( Waraich Rizwana Sanaullah ) - University of Karachi International Center for Chemical and Biological Sciences

Abstract


Several reports indicate anti-hyperglycemic effects of Syzygium aromaticum. In the present study, we report for the first time that clove extract (SAM) and its compound nigricin (NGC) decreases free fatty acid-mediated insulin resistance in mouse myoblasts. In addition, NGC was able to diminish insulin resistance in a diabetic mouse model. We observed that SAM and its compound NGC exhibited significant antioxidant activity in murine skeletal muscle cells. They also modulated stress signaling by reducing p38 MAP kinase phosphorylation. NGC and SAM treatments enhanced proximal insulin signaling by decreasing serine phosphorylation of insulin receptor substrate-1 (IRS-1) and increasing its tyrosine phosphorylation. SAM and NGC treatments also modified distal insulin signaling by enhancing protein kinase B (PKB) and glycogen synthase kinase-3-beta (GSK-3 beta) phosphorylation in muscle cells. Glucose uptake was enhanced in muscle cells after treatment with SAM and NGC. We observed increased glucose tolerance, glucose-stimulated insulin secretion, decreased insulin resistance, and increased beta cell function in diabetic mice treated with NGC. The results of our study demonstrate that clove extract and its active agent NGC can be potential therapeutic agents for alleviating insulin resistance.

키워드

clove; diabetes; insulin resistance; insulin signaling; phosphorylation

원문 및 링크아웃 정보

등재저널 정보