目的:探讨非酒精性脂肪肝(NAFLD)与超敏C反应蛋白(hsCRP)、胰岛素抵抗的关系。方法:从2006年10月至12月在湘雅二医院健康体检的长沙某企业职工中随机抽样,其中NAFLD组243例,无脂肪肝组361例,进行问卷调查、体格检查、空腹血糖、血脂、谷丙转氨酶(ALT)、血尿酸、空腹胰岛素和hsCRP检测以及腹部B超检查。结果:与轻度脂肪肝比较,中度脂肪肝血清hsCRP,胰岛素抵抗指数(HOMA—IR)增高显著(P〈0.01)。胰岛素抵抗NAFLD患者hsCRP,ALT水平明显高于无胰岛素抵抗患者(P〈0.05)。血清hsCRP高浓度组NAFLD患病风险是低浓度组的5.937倍。采用多因素logistic回归分析,调整了性别、年龄和多项代谢成分后,NAFLD与hsCRP,HOMA—IR独立相关(OR值分别为2.044,7.896,P〈0.01)。结论:血清hsCRP、胰岛素抵抗与NAFLD存在关联,是发生NAFLD的独立危险因素。全身系统性炎症和胰岛素抵抗在NAFLD发生发展中起重要作用。
Objective To explore the relationship among non-acoholic fatty liver disease (NAFLD) , high sensitivity reactive C protein (hsCRP) and insulin resistance. Methods Workers of an enterprise in Changsha for health examination in Second Xiangya Hospital from October to December, 2006, NAFLD group (243 patients) and a control group without fatty liver disease (361 patients) were randomly drawn. Questionnaire, physical examination, fasting plasma glucose, serum lipid-profile, alanine aminotransferase (ALT) , blood uric acid, and abdominal uhrasonographic exmination were undertaken in the 2 groups. Results The moderate NAFLD group had significantly higher hsCRP concentration and homeostasis model assessment of insulin resistance ( HOMA-IR ) as compared with the mild NAFLD group ( P 〈0.01 ). The patients with insulin resistance had significantly higher hsCRP concentration and ALT level compared with NAFLD patients without insulin resistance ( P 〈 0.05 ). The NAFLD patients were divided into 2 groups ( low and high ) according to the hsCRP concentration ( 〈 1 mg/L or ≥ 1 mg/L). Compared with the low concentration group, the odds ratio of the high concentration group for prevalence of NAFLD was 5. 937 ( P 〈 0. 001 ). Multi-factor logistic regression analysis demonstrated that NAFLD was independently correlated with hsCRP or HOMA-IR after adjustment for sex, age and metabolic components ( OR = 2. 044, 7. 896, P 〈 0.01 ). Conclusion NAFLD is closely correlated with hsCRP and HOMA-IR. Insulin resistance and elevated hsCRP concentration are the independent risk factors for the presence of NAFLD.