Abstract Title:

Eriobotrya japonica improves hyperlipidemia and reverses insulin resistance in high-fat-fed mice.

Abstract Source:

Phytother Res. 2010 Dec;24(12):1769-80. PMID: 20564460

Abstract Author(s):

Chun-Ching Shih, Cheng-Hsiu Lin, Jin-Bin Wu

Article Affiliation:

Institute of Pharmaceutical Science and Technology, College of Health Science, Central Taiwan University of Science and Technology, No. 666, Buzih Road, Beitun Road, Beitun District, Taichung City 40601, Taiwan, ROC. ccshih@ctust.edu.tw


The effect of Eriobotrya japonica Lindl. (loquat) on insulin resistance was examined in mice fed a high-fat (HF) diet. First, the mice were divided randomly into two groups: the control (CON) group was fed a low-fat diet, whereas the experimental group was fed with a 45% HF diet for 10 weeks. After 6 weeks of induction, the HF group was subdivided into five groups and was given orally loquat or not for 4 weeks afterward. It was demonstrated that loquat was effective in ameliorating the HF diet-induced hyperglycemia, hyperleptinemia, hyperinsulinemia and hypertriglyceridemia, as well as in decreasing the levels of free fatty acid (FFA), but increasing the adipose PPARγ (peroxisomal proliferator-activated receptor γ) and hepatic PPARα mRNA levels. Loquat significantly decreased the body weight gain, weights of white adipose tissue and visceral fat accompanying the suppressed leptin mRNA levels. Loquat not only suppressed the hepatic mRNA levels of enzymes involved in fatty acid and triacylglycerol synthesis and lowered the sterol regulatory element binding protein-1c (SREBP-1c) mRNA level, but also affected fatty acid oxidation enzyme levels. These regulations may contribute to triacylglycerol accumulation in white adipose tissue. The findings provide anutritional basis for the use of loquat as a functional food factor that may have benefits for the prevention of hyperlipidemia and diabetes.

Study Type : Animal Study

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