Antiobesity effects of quercetin-rich onion peel extract on the differentiation of 3T3-L1 preadipocytes and the adipogenesis in high fat-fed rats
- Authors
- Moon, Jiyoung; Do, Hyun-Ju; Kim, Oh Yoen; Shin, Min-Jeong
- Issue Date
- 8월-2013
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Onion peel extract; Quercetin; 3T3-L1; High-fat diet; Adipogenesis; Antiobesity
- Citation
- FOOD AND CHEMICAL TOXICOLOGY, v.58, pp.347 - 354
- Indexed
- SCIE
SCOPUS
- Journal Title
- FOOD AND CHEMICAL TOXICOLOGY
- Volume
- 58
- Start Page
- 347
- End Page
- 354
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/102525
- DOI
- 10.1016/j.fct.2013.05.006
- ISSN
- 0278-6915
- Abstract
- The aim of the present study was to examine the effect of quercetin-rich onion peel extract (OPE) on anti-differentiation in 3T3-L1 preadipocytes and the antiobesity in high-fat fed rats. We found that lipid accumulations and TG contents in 3T3-L1 cells were markedly suppressed by OPE. The mRNA levels of activating protein (AP2) were down-regulated and those of carnitine palmitoyl transferase-1 alpha (CPT-1 alpha) and fatty acid binding protein 4 (FABP4) were up-regulated by 75 and 100 mu g/ml OPE. Body weight, retroperitoneal and mesenteric fat weights of SD rats were significantly lower in the 8 week high fat (HF) diet + 0.72% OPE group than in the HF group. Peroxisome proliferator-activated receptor (PPAR)gamma mRNA levels were down-regulated in the epididymal fat of OPE than those of control and HF, and significant down-regulation of CCAAT/enhancer binding protein (C/EBP)alpha mRNA levels in OPE was also observed than the control. The mRNA levels of CPT-1 alpha and uncoupling protein-1 (UCP-1) were up-regulated by the OPE, while those of fatty acid synthase (FAS) and acetyl-CoA carboxylase (ACC) were down-regulated in HF and OPE groups compared to control group. These results suggest that quercentin-enriched OPE may have antiobesity effects by suppressing preadipocyte differentiation and inhibiting adipogenesis. (C) 2013 Elsevier Ltd. All rights reserved.
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Collections - College of Health Sciences > School of Biosystems and Biomedical Sciences > 1. Journal Articles
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