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Objective: To investigate the expression of resistin gene in diet-induced obesity (DIO) and diet resistance (DR) rats. Methods: DIO and DR models were prepared with male SD rats after 6 weeks feeding by a diet of relatively high fat, sucrose, and caloric content (HE diet). Body-weight, fat mass, and the concentration of serum insulin were measured, and the expression of resistin and Peroxisome proliferator-activated receptory-7(PPAR-7) gene in whit adipose tissue (WAT) was also detected by RT-PCR. Results: ① Body weight, fat mass and the concentration of serum insulin were significantly increased in DIO rats and decreased in DR rats. ② The expression of resistin and PPAR7 gene was upregulated in DIO group and supressed in DR group, but the expression of resistin was not detectable in all samples within three groups. Conclusion: Resistin may serve as a link between obesity and insulin resistance, but the individual difference is enormous.  相似文献
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