饮食、C反应蛋白与2型糖尿病颈动脉内膜厚度的关系

目的比较2型糖尿病颈动脉内膜增厚与未增厚患者的营养摄入特点及C反应蛋白（CRP）水平差异,分析饮食、CRP与颈动脉内膜厚度的关系。方法2007年2月至9月在广州市第一医院门诊或住院治疗的2型糖尿病患者60例,平均年龄（59．5±7．27）岁,根据颈动脉内膜是否增厚分为两组（n=30）,进行膳食调查、人体测量,检测血高敏CRP、尿微量白蛋白、血糖、C肽、血脂、糖化血红蛋白、肾功能等指标,并比较两组结果。结果2型糖尿病颈动脉内膜未增厚组的日均蔬菜类、水果类、水产类和维生素C摄入量均明显高于颈动脉内膜增厚组（P〈0．05）,颈动脉内膜增厚组的高敏CRP明显高于2型糖尿病颈动脉内膜未增厚组（P=0．000）,两组其余实验室指标的差异均无统计学意义。2型糖尿病患者高敏CRP与颈动脉内膜厚度呈正相关（r=0．36,P=0．004）;血清CRP水平与蔬菜水果的摄入量呈负相关（r=-0．334,P=0．01）,与水产类的摄入量呈负相关（r=-0．315,P=0．016）,与膳食维生素C的摄入量呈负相关（r=-0．2786,P=0．038）;水果摄入量与内膜厚度呈负相关（0=-0．33,P=0．01）。结论膳食中蔬果类、水产类食物、维生素C可能是2型糖尿病动脉粥样硬化的保护因子,增加摄入可能有利于糖尿病患者预防动脉粥样硬化,CRP与2型糖尿病动脉粥样硬化的发生发展相关联。

Association of diet and C-reactive protein with atherosclerosis in type 2 diabetes mellitus patients

Objective To compare the characteristics of food and nutrition intake in type 2 diabetes mellitus (T2DM) patients with or without carotid atherosclerosis and analyze the relationship between diets/C-reactive protein (CRP) and carotid intima-media thickness (C-IMT). Methods Sixty patients with T2DM were enrolled and divided into two groups based on C-IMT: group A (C-IMT ＜ 1 mm, n=30) and group B (C-IMT≥1 mm, n=30). All subjects were investigated with questionnaires including 3-day food recall They all took somatometric measurement. Blood and urine samples were collected in all subjects to examine the levels of high sensitive-CRP,C-peptide, blood glucose, glycosylated hemoglobin, blood lipid, renal function, urine microalbumin, and other indicators. Results The intakes of vegetables, fruits, and aquatic products were significantly higher in group A than in group B ( P ＜ 0. 05 ). The intake of vitamin C in group A was significantly higher than that in group B ( P ＜0. 05 ). The levels of CRP in group B was significant higher than that in group A (P = 0. 000). Positive correlation was found between CRP level and C-IMT in T2DM patients ( r = 0. 36, P = 0. 004). Furthermore, CRP was negatively correlated with the intakes of vegetables and fruits ( r = - 0. 334, P = 0. 01 ), aquatic products ( r = -0. 315, P = 0. 016), and vitamin C ( r = - 0. 2786, P = 0. 038 ), respectively. The intake of fruits was negatively correlated with C-IMT (r, = -0. 33, P = 0. 01 ). Conclusions T2DM patients without carotid atherosclerosis intake more vegetables, fruits, aquatic products and vitamin C than those with atherosclerosis. Vegetables, fruits,sea foods and vitamin C may be the protective factors against atherosclerosis in T2DM patients. CRP is associated with the development of atherosclerosis in T2DM patients.