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Year : 2020  |  Volume : 52  |  Issue : 1  |  Page : 31-38

Effect of chromium citrate on the mechanism of glucose transport and insulin resistance in Buffalo rat liver cells

1 School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
2 School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang, Jiangsu, China
3 School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, China

Correspondence Address:
Dr. Liuqing Yang
School of Chemistry and Chemical Engineering, Jiangsu University, 301 Xuefu Rd., 212013 Zhenjiang, Jiangsu
Weijie Zhang
Associate Researcher, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Rd., 212013, Zhenjiang, Jiangsu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijp.IJP_608_18

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OBJECTIVE: Our published literature indicated that chromium citrate could regulate the glycemic index in alloxaninduced diabetic mice. The present study investigated the mechanism of chromium citrate in insulin resistance (IR) buffalo rat liver (BRL) cells. MATERIALS And METHODS: Chromium citrate was synthesized in our laboratory. BRL cells were purchased from the Chinese Academy of Sciences Cell Bank. The glucose transport and IR affected by chromium citrate in BRL cells were examined. The Thiazolyl Blue Tetrazolium Bromide (MTT) and glucose assay experiments were measured by microplate ELISA reader. The protein kinase B (Akt), glucose transporter-4 (Glut4), and phosphor-AMP-activated protein kinase β1 levels were tested by Western blot, and the mRNA expression of glucose transport proteins (Akt2, Glut4, and AMPactivated protein kinase α2 (AMPKα2)) and insulin sensitivity proteins (insulin receptor substrate1 (IRS-1), phosphatidylinositol 3 kinase (PI3K), and peroxisome proliferator-activated receptor γ (PPARγ)) was measured by reverse transcription–polymerase chain reaction. RESULTS: The results indicated that the glucose absorption level of chromium citrate groups was higher than model group significantly. It demonstrated that chromium citrate could significantly improve glucose absorption in IR BRL cells. The Akt, Glut4, and phosphor-AMPKβ1 levels in chromium citrate groups (at doses of 0.4, 0.2, and 0.1 μg Cr/mL) were markedly improved when compared with the other experiment groups, and chromium citrate could more effectively increase the Akt level than chromium trichloride. In addition, the mRNA expression of Akt2, Glut4, and AMPKα2 in chromium citrate groups was significantly improved when contrasted with model group. CONCLUSION: The consequences illustrated that chromium citrate can affect the IR BRL cells' ameliorating glucose transport and IR.


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