Gallic acid improves glucose tolerance and triglyceride concentration in diet-induced obesity mice

Eun Jung Bak, Jinmoon Kim, Sungil Jang, Gye Hyeong Woo, Ho Geun Yoon, Yun Jung Yoo, Jeong Heon Cha

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Gallic acid, a phenolic phytochemical, has been shown to exert a variety of effects, including anti-oxidative, anti- carcinogenic, anti-allergic, and anti-inflammatory effects. In this study, we attempted to determine whether gallic acid affects metabolic syndrome such as obesity and diabetes. Diet-induced obesity mice were treated intraperitoneally once per day with gallic acid (10 mg/kg/day). After 2 weeks of treatment, the mice were sacrificed to collect the blood for metabolic parameter assessments, and the adipose tissues and liver to weigh and analyze. The triglyceride concentrations were significantly improved in the gallic acid group relative to those measured in the control group. And most importantly, the blood glucose concentrations in the gallic acid group were significantly improved. In the epididymal white adipose tissue of the gallic acid group, adipocyte size was reduced, PPARγ expression was induced, and the Akt signaling pathway was activated. Our results demonstrate that gallic acid improves glucose tolerance and lipid metabolism in the obesity mice, thereby showing evidence of anti-hyperglycemic activity. The findings of an upregulation of PPARγ expression and Akt activation also contribute to our current understanding of the mechanisms underlying the effects of gallic acid on glucose metabolism.

Original languageEnglish
Pages (from-to)607-614
Number of pages8
JournalScandinavian Journal of Clinical and Laboratory Investigation
Volume73
Issue number8
DOIs
Publication statusPublished - 2013 Dec 1

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Clinical Biochemistry

Cite this