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Title: [Effects of compound whole grain-soybean on insulin resistance and serum adipocytokines in impared fasting glucose population].
Author: Han S, Zhang H, Chi J, Liu Y, Zhou S, Zhai C.
Journal: Zhonghua Yu Fang Yi Xue Za Zhi; 2014 Jan; 48(1):23-7. PubMed ID: 24713286.
Abstract:
OBJECTIVE: To evaluate the effects of compound whole grain-soybean on insulin resistance and serum adipocytokines levels in impared fasting glucose population. METHODS: According to inclusion and exclusion criteria, 163 cases of impared fasting glucose (IFG) Chinese Han population from the age of 40 to 75 years old, were screened from 12 community health centers of three main districts of Nanjing city by the multi-stage cluster and simple randomization method from March to September, 2008. The IFG subjects were randomly divided into the intervention group (87 individuals) and control group (76 individuals) by quasi-experimental design. The intervention group was provided with compound whole grain-soybean and health education, while only health education was provided for the control group. Body mass index (BMI), waist-to-hip ratio (WHR), lipid profiles, fasting blood glucose (FBG), fasting insulin (FINS) and homeostasis model assessment of insulin resistance (HOMA-IR), adipocytokines including leptin, lipocalin 2 (LCN-2) and adiponectin (ADP) levels were measured before and after the half a year intervention period. Chi square test was used to analyze the distribution differences. Two-sample t-test was used to compare the differences of the two groups before and after the half a year intervention period, and paired t-test was used to compare the differences between before and after intervention in the intervention group or control group. Wilcoxon rank sum test was used to compare the differences of all indexes between after and before dietary intervention. RESULTS: After dietary intervention for half a year on the IFG population, BMI ((24.87 ± 3.69) kg/m(2)), FBG((6.27 ± 0.24) mmol/L), FINS((7.14 ± 1.05) mU/L) , HOMA-IR (1.99 ± 0.31), leptin ((13.07 ± 2.22) µg /L), LCN-2 ((67.42 ± 18.20) µg/L) of intervention group were decreased significantly compared to the levels of BMI ((25.16 ± 4.07) kg/m(2)), FBG((6.40 ± 0.28) mmol/L), FINS ((7.32 ± 1.54) mU/L), HOMA-IR (2.08 ± 0.45), leptin ((13.43 ± 2.52) µg/L), LCN-2((74.87 ± 17.81) µg/L) before dietary intervention, t values were 4.48, 7.08, 2.05, 3.39, 3.28 and 6.36, respectively, and all P values were < 0.05, while ADP ((5.07 ± 1.51) mg/L) of intervention group after dietary intervention was increased significantly compared to the level of ADP ((4.92 ± 1.53) mg/L) before dietary intervention, t = -2.47 and P < 0.05. The medians (P25, P 75) of differences after and before dietary intervention in the intervention group were BMI (-0.25(-0.68, 0.02) kg/m(2)), FBG (-0.08 (-0.20, 0.00) mmol/L), FINS (-0.15(-0.32, 0.00) mU/L), HOMA-IR (-0.07(-0.12, -0.03)), leptin (-0.36(-0.77, 0.12) µg/L), LCN-2 (-5.85(-14.29, -0.71) µg/L) and ADP (0.15(-0.13, 0.36) mg/L), and the medians of differences of after and before dietary intervention in the control group were BMI (0.00(-0.23, 0.29) kg/m(2)), FBG (0.00(-0.03, 0.04) mmol/L), FINS (-0.01(-0.13, 0.04) mU/L), HOMA-IR (-0.01(-0.05, 0.02)), leptin (-0.07 (-0.57, 0.46) µg/L), LCN-2 (-0.85(-5.39, 1.63) µg/L) and ADP (0.02(-0.19, 0.13) mg/L). There were significantly statistical differences between them (Z values were -3.65, -4.88, -3.08, -5.23, -2.16, -4.43 and 3.05, all P values were <0.05). CONCLUSION: Dietary intervention of compound whole grain-soybean can improves glucose level, increase insulin sensitivity and ameliorate insulin resistance state of IFG population.

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