摘要
目的:探讨糖耐量正常的腹型肥胖男青年丙二醛( mDA)、总体抗氧化能力( T-Aoc)、25-羟维生素D3〔25-( OH) D3〕水平及其与胰岛素抵抗( IR)的关系。方法采用随机数字表法选取2012年11月-2013年2月在秦皇岛市第一医院体检中心进行体检的25~45岁糖耐量正常男青年81例,并以腰围≥90 cm作为腹型肥胖诊断标准,将其分为腹型肥胖者39例(病例组)和腰围正常者42例(对照组)。测量血压〔收缩压( SBP)和舒张压(DBP)〕、腰围、体质指数(BmI)、空腹血糖(FPG)、空腹胰岛素(FINS)、三酰甘油(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、mDA、T-Aoc、25-(OH)D3、餐后2 h血糖(2 hPG)、餐后2 h胰岛素(2 hINS)。采用Pearson线性相关分析和多元线性回归分析mDA、T-Aoc、25-(OH)D3水平与胰岛素抵抗指数( HOmA-IR)的关系。结果两组的TC、LDL-C、FPG、2 hPG水平比较,差异均无统计学意义(P﹥0.05)。病例组腰围、BmI、SBP、DBP、TG、FINS、2 hINS、mDA水平及HOmA-IR均高于对照组,而HDL-C、T-Aoc、25-(OH)D3水平均低于对照组(P﹤0.05)。Pearson线性相关分析显示,T-Aoc与BmI、腰围、DBP、HOmA-IR呈负相关(r=-0.451、-0.472、-0.430、-0.462,P﹤0.05),与HDL-C、25-(OH)D3呈正相关(r=0.474、0.472,P﹤0.05);mDA与BmI、腰围、2 hPG 、HOmA-IR呈正相关(r=0.402、0.495、0.504、0.566, P﹤0.05),与25-(OH)D3呈负相关(r=-0.459,P﹤0.05)。多元线性回归分析显示,25-(OH)D3、mDA与HOmA-IR相关性最强,HOmA-IR与25-(OH)D3呈负相关,与 mDA 呈正相关(标准化偏回归系数=-0.383、0.356,P﹤0.05)。结论糖耐量正常的腹型肥胖男青年易发生mDA水平升高、T-Aoc及维生素D水平下降,且mDA及维生素D是IR的主要影响因素,为今后的临床研究提供了参考价值。
Objective To investigate the levels of malondialdehyde (MDA), total antioxidant capacity (T- Aoc), 25 -hydroxy vitamin D3 [25 - (OH) D3 ] and their relationship to insulin resistance (IR) in obese young men with normal glucose tolerance (NGT). Methods Eighty - one young men with NGT having physical examinations in the First Hospital of Qinhuangdao from November 2012 to February 2013 were divided, taking WC ≥90 cm as diagnostic criteria of abdominal - obesity, into groups obesity (n=39), control (n =42). SBP, DBP, WC, BMI, FPG, FINS, TG, TC, HDL-C, LDL- C, MDA, T - Aoc, 25 - (OH) D3, 2 hPG, 2 hINS were determined. Pearson linear correlation analysis and multiple linear regression analysis were used to analyze the relationship of MDA, T-Aoc, 25- (OH) D3 to insulin resistance index ( HOMA - IR). Results There was no significant difference in levels of TC, LDL - C, FPG, 2 hPG between 2 groups (P 〉 0.05). WC, BMI, SBP, DBP, TG, FINS, 2 hlNS, MDA, HOMA - IR were higher in obesity group than in control group , HDL - C, T - Aoc, 25 - (OH) D3 lower (P 〈 0. 05). By Pearson linear correlation analysis, T - Aoc was negatively corre- lated with BMI, WC, DBP, HOMA - IR (r = - 0. 451, - 0. 472, - 0. 430, - 0. 462, P 〈 0.05), positively with HDL -C, 25- (OH) D3 (r=0.474, 0.472, P 〈0.05); MDA was positively correlated with BMI, WC, 2 hPG, HOMA-IR (r=0.402, 0.495, 0.504, 0.566, P〈0.05), negatively with 25- (OH) D3 (r=-0.459, P〈0.05). By multiple linear regression analysis, the correlation between 25 - (OH) D3, MDA and HOMA -IR was the strongest, HOMA- IR was negatively correlated with 25 - (OH) D3, positively with MDA ( standardized partial regression coefficient = - 0. 383, 0. 356, P 〈 0.05 ). Conclusion MDA increases, T- Aoe and vitamin D decrease in abdominal- obesity young men with NGT, MDA and vitamin D are the main influencing factors of IR, and provides a reference value for future clinical research.
出处
《中国全科医学》
CAS
CSCD
北大核心
2014年第20期2341-2344,共4页
Chinese General Practice
关键词
腹型肥胖
丙二醛
抗氧化能力
维生素D
氧化应激
胰岛素抵抗
Abdominal obesity
Malondialdehyde
Antioxidant
Vitamin D
Oxidative stress
Insulin resistance