脂联素基因SNP276多态性与儿童青少年肥胖的相关性研究

目的研究脂联素（APM1）基因SNP276 G/T多态性与儿童青少年单纯性肥胖及其代谢指标的相关性。方法以2004至2006年于复旦大学附属儿科医院内分泌门诊就诊的单纯性肥胖或超重儿童青少年分别作为肥胖组和超重组;选择某中学正常体重学生作为正常对照组。分别测量身高和体重,计算体重指数（BMI）。测定血清空腹葡萄糖（FPG）、空腹胰岛素（FIns）、三酰甘油（TG）和总胆固醇（TC）水平。计算胰岛素抵抗指数（HOMA-IR）和胰岛素敏感指数（QUICKI）。抽提外周血基因组DNA,采用Taqman-MGB探针技术检测APM1基因SNP276 G/T多态性,分析不同基因型与代谢指标和BMI间的关联性。结果肥胖组纳入227例,超重组纳入231例,正常对照组纳入216名。①肥胖＋超重组的BMI、FPG、FIns、TG和HOMA-IR均显著高于正常对照组。②基因分布频率符合Hardy-Weinberg平衡。③肥胖组、超重组和正常对照组的G等位基因频率分别为71.4%、72.5%和69.7%,GG基因型频率分别为50.2%、52.4%和45.8%,GT基因型频率分别为42.3%、40.3%和47.7%;各组差异均无统计学意义（P均〉0.05）。④SNP276 GG、GT和TT基因型的BMI、FPG、FIns、TG、TC、HOMA-IR和QUICKI差异均无统计学意义（P=0.49～0.99）。⑤肥胖＋超重组IFG儿童青少年中GG＋GT型有70例,TT型4例;正常对照组IFG儿童青少年中GG＋GT型有10例,TT型0例;两组差异无统计学意义（P=0.45）。结论APM1基因SNP276 G/T多态性与青少年儿童单纯性肥胖及其代谢指标间无显著关联性,提示该SNP位点可能存在种族特异性。     

2型糖尿病患者视网膜病变与视黄醇结合蛋白4和胰岛素抵抗的相关性研究

目的:探讨糖尿病患者视网膜病变(DR)与视黄醇结合蛋白4(RBP4)和胰岛素抵抗(IR)的关系。方法:选取163例2型糖尿病(T2DM)患者作为研究对象,其中包括单纯T2DM 41例(T2DM组),非增生性DR 40例(NPDR组),增生性DR 42例(PDR组),另选40例健康人群作为对照组(NC组)。常规方法检测各组空腹血糖(FBG)、空腹胰岛素(FINS);酶联免疫吸附法测定血清RBP4水平;稳态模型评估IR指数(HOMA-IR)。统计学分析各组上述指标水平差异及视网膜病变程度与RBP4和IR的相关性。结果:与NC组比较,T2DM组、NPDR组、PDR组FBG、FINS、HOMA-IR、RBP4均显著升高(P0.05,P0.01);与T2DM组比较,NPDR组FBG、HOMAIR显著升高,PDR组FBG、HOMA-IR、RBP4亦升高(P均0.05);与NPDR组比较,PDR组RBP4显著升高(P0.05)。DR程度与RBP4、HOMA-IR呈正相关(r=0.200、0.172,P0.05)。结论:RBP4、HOMA-IR水平变化与DR程度密切相关,降低RBP4和抑制IR可能改善DR。     

精神分裂症伴发代谢综合征患者血清视黄醇结合蛋白4水平的研究

目的探讨精神分裂症伴发代谢综合征(MS)患者血清视黄醇结合蛋白4(RBP4)水平及其与MS的关系。方法测定诊断为MS的精神分裂症患者(病例组,n=40)血清RBP4水平、体质量指数(BMI)、空腹血糖(FPG)、血脂、血压,以TyG指数评定受试者胰岛素抵抗水平,同时与不伴MS的精神分裂症患者(对照组,n=40)进行对照。结果①与对照组比较,病例组血清RBP4水平显著增高(t=4.856,P0.01);②以血清RBP4的中位数分组,血清RBP4水平高值组MS及MS各组分异常(包括肥胖、高血糖、血脂紊乱、高血压)的发生率显著高于血清RBP4水平低值组(χ2=5.333~24.261,P0.05~0.01),高血清RBP4水平与MS及MS各组分异常的发生存在关联性(OR=3.0~12.0,95%CI=1.2~34.5);③血清RBP4水平与TyG指数、BMI、FPG、TG正相关(r=0.319~0.394,P0.05~0.01),与HDL-C负相关(r=-0.333,P0.05)。结论精神分裂症伴发MS患者血清RBP4增高,并可能与精神分裂症患者中MS的发生有关。     

胰岛素抵抗综合征患者血视黄醇结合蛋白4和脂联素的相关性研究

目的：研究超重或肥胖（OW/OB）、糖调节受损（IGR）及2型糖尿病（T2DM）患者血浆视黄醇结合蛋白4（RBP4）的变化及与脂联素（APN）、糖脂代谢、胰岛素敏感性等的相关性。方法:采用酶联免疫吸附法测定了22例对照组、30例OW/OB、30例IGR和35例T2DM患者血浆RBP4和APN水平，测定空腹血糖、胰岛素、血脂，量腰围、臀围，计算腰臀比，测身高及体重，计算体重指数。结果:RBP4在OW/OB组、IGR组和T2DM组均较正常组高（P<0.01），IGR组较OW/OB组高（P<0.01），但IGR组和T2DM组间差异无显著。相关分析显示RBP4与W、WHR、FPG、HOMA-IR、TG显著相关（相关系数分别为r=0.550、0.444、0.552、0.545、0.555）；多元逐步回归分析显示，FPG、TG、WHR、HOMA-IR是RBP4的独立相关因素（决定系数分别为r2=0.457、0.308、0.531、0.558）。无论是研究对象总体还是各亚组，RBP4与APN均无相关。结论:胰岛素抵抗综合征患者血浆RBP4水平显著升高。RBP4与APN无相关，表明调节不同的脂肪细胞因子分泌的信号是不同的。     

成都地区汉族人群PPARGC1A基因Thr394Thr位点G/A多态性与2型糖尿病及胰岛素抵抗的相关性研究

目的 了解中国成都地区汉族人群过氧化物酶体增殖物激活受体γ辅助激活因子-1α基因(peroxisome proliferator-activated receptor gamma,coactivator 1 alpha,PPARGC1A;又名PGC-1α)Thr394Thr位核苷酸G/A的基因型分布,探讨该多态性与2型糖尿病(type 2 diabetes mellitus,T2DM)、胰岛素抵抗及其他代谢异常的关系.方法 应用聚合酶链反应-限制性片段长度多态性技术检测151例无亲缘关系的T2DM患者和156名糖耐量正常对照者PPARGC1A基因Thr394Thr位核苷酸G/A多态性.所有研究对象均测定血糖、胰岛素、血脂,测量身高、体重、腰围、血压.结果 与正常对照组相比,T2DM组的体重指数、腰围、血压、甘油三酯水平均显著增高(P＜0.05),而高密度脂蛋白胆固醇(high density lipoprotein-cholesterol,HDL-C)水平显著降低(P＜0.05).A等位基因的频率在T2DM及正常对照组分别为22.5%、18.6%,AG基因型频率在两组分别为43.7%、37.2%,差异无统计学意义.在T2DM组中,AA+AG基因型的空腹胰岛素、稳态模型评估法胰岛素抵抗指数(homeostasis model aseessment-insulin resistance,HOMA-IR)及腰围明显高于GG基因型,HDL-C显著低于GG基因型(P＜0.05).无论T2DM和正常对照,A等位基因携带者HOMA-IR明显高于GG者.结论 PPARGC1A基因Thr394Thr位核苷酸G/A多态性与胰岛素抵抗存在明显相关,并可能与T2DM患者中心性肥胖及低HDL-C水平相关,其与T2DM发病的关系有待进一步研究.     

2型糖尿病合并高血压患者抵抗素与动脉粥样硬化的相关性研究

为探讨2型糖尿病合并高血压患者抵抗素与动脉粥样硬化(AS)的相关性,用彩色多普勒超声技术观察2型糖尿病(A组)29例患者,2型糖尿病合并高血压(B组)23例患者及20名对照组的颈动脉内中膜厚度(IMT)及斑块的变化;应用ELISA测定血浆抵抗素水平。结果表明:A组和B组抵抗素水平较对照组显著升高(P<0.01),且B组抵抗素较A组显著升高(P<0.05);抵抗素与IMT、SBP、FBG、HOMA-IR显著正相关,与FINS显著负相关;IMT与抵抗素、年龄、BMI、SBP、FBG、FINS、HbA1c、HOMA-IR显著正相关。本文提示抵抗素参与胰岛素抵抗(IR),在AS发生及发展中起着重要作用。     

肥胖女童血清apelin、chemerin水平及其与胰岛素抵抗的关系

目的: 探讨肥胖女童血清apelin、chemerin水平及其与胰岛素抵抗的关系。方法: 35名女童参加本研究,肥胖组20人,年龄(9.73±2.08)岁,对照组15人,年龄(10.61±1.93)岁,两组年龄无显著差异(P>0.05)。采用ELISA法检测血清apelin和chemerin水平。空腹血脂和空腹血糖通过生化检测测定。空腹胰岛素通过化学发光法检测。计算每个个体的体重指数(BMI)、体重指数Z积分(BMI-SDS)及胰岛素抵抗指数(HOMA-IR)。结果: 肥胖组和对照组BMI存在明显差异(24.02±3.90 vs 16.46±1.93,P<0.01)。与对照组相比,肥胖组患者具有较高的甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)、空腹胰岛素(FINS)和HOMA-IR水平(均P<0.05)。肥胖女童血清apelin水平较对照组高 ,血清chemerin水平明显较对照组高 。对所有参与研究者相关因素分析发现,血清apelin水平与BMI-SDS(r=0.356, P<0.05)、TG (r=0.548, P<0.01)、FINS(r=0.54 , P<0.01)及HOMA-IR(r= 0.55, P<0.01)呈正相关。血清chemerin水平与年龄呈负相关(r=-0.362,P<0.05),与BMI-SDS (r= 0.315, P< 0.01)、TG (r= 0.28, P< 0.05) 、FINS (r=0.38, P< 0.01)及HOMA-IR (r= 0.41, P< 0.01) 均呈正相关。血清apelin与chemerin水平呈正相关(r=0.34, P<0.05)。结论: 女童血清apelin、chemerin水平与胰岛素抵抗密切相关,apelin和chemerin可能参与儿童肥胖的代谢改变。     

2型糖尿病胰岛素抵抗和胆固醇酯转运蛋白基因多态性的关联研究

目的 探讨胆固醇酯转运蛋白(cholesteyl ester transfer protein，CETP)基因多态性与2型糖尿病胰岛素抵抗的关系。方法 采用聚合酶链反应和酶切电泳方法对108例2型糖尿病患者进行CETP-TaqIB基因型分型，同时测定血脂、空腹胰岛素、胰岛素敏感指数和胰岛素抵抗指数。结果 正常对照组与2型糖尿病组等位基因频率和基因型分布无统计学意义；2型糖尿病甘油三酯(triglyceride，TG)、总胆固醇(total cholesterol，TC)、低密度脂蛋白胆固醇(low density lipoprotein cholesterol，LDL-C)和载脂蛋白B(apolipoprotein B，apoB)浓度各基因型间差异无统计学意义，而高密度脂蛋白胆固醇(high density lipoprotein cholesterol，HDL-C)、载脂蛋白A1(apolipoprotein A1，apoA1)、空腹胰岛素(fasting insulin，FINS)、胰岛素敏感性指数(insulin sensitivity index，ISI)和HOMA模型胰岛素抵抗指数(homeostasis model assessment-insulin resistance，HOMA-IR)各基因型间差异有统计学意义，HDL-C、apoA，和ISI B2B2型显著高于B1B1型，FINS和HOMA-IR B2B2型显著低于B1B1型；以胰岛素敏感性指数和HOMA-模型胰岛素抵抗指数为因变量进行多元回归分析，ISI和HOMA-IR与体重指数、收缩压、TC、HDL及基因型分型密切相关。结论 CETP-Taq IB基因多态性与2型糖尿病脂代谢及胰岛素抵抗密切关联，可能是胰岛素抵抗的重要遗传因素。     

妊娠期糖尿病孕妇血清视黄醇结合蛋白4、内脂素水平的变化及其临床意义

目的探讨妊娠期糖尿病(GDM)患者血清视黄醇结合蛋白4(RBP4)、内脂素水平变化的意义,研究视黄醇结合蛋白4和内脂素与胰岛素抵抗(IR)的相关性。方法采用稳态模型评估法评估正常糖耐量孕妇(NGT)、糖耐量减低孕妇(GIGT)和妊娠期糖尿病孕妇(GDM)的胰岛素抵抗指数,采用酶联免疫吸附法检测所有受试者的空腹血糖(FPG)、空腹胰岛素(FINS)、RBP4和内脂素水平。结果 GDM组和GIGT组血清RBP4、内脂素和胰岛素抵抗指数(HO-MA-IR)均显著高于NGT组(P<0.01)。血清RBP4、内脂素与HOMA-IR均呈显著正相关。结论妊娠期糖尿病患者存在胰岛素抵抗,RBP4、内脂素可影响妊娠期糖尿病患者IR的程度。     

健康体检人群血清视黄醇结合蛋白4升高的临床意义

目的 探讨健康体检人群中测定血清视黄醇结合蛋白4(RBP4)升高的相关因素,以便进行早期有效干预.方法 应用免疫透射比浊法检测健康人群血清RBP4水平.结果 RBP4升高组水平明显高于对照组(P<0.001);BMI、血压血脂指标(TG、Tc、LDL-C)均高于RBP4正常组(P <0.05),RBP24升高与BMI、TG、FPG、SBP、DBP正相关,TG为其独立相关因素.结论 健康人群中RBP4升高与高血压、肥胖、高脂血症密切相关.     

Insulin Resistance Is an Important Risk Factor for Cognitive Impairment in Elderly Patients with Primary Hypertension

Purpose

Insulin resistance plays a role in the development of dementia and hypertension. We investigated a possible relationship between cognitive impairment and insulin resistance in elderly Chinese patients with primary hypertension.

Materials and Methods

One hundred and thirty-two hypertensive elderly patients (>60 years) were enrolled in this study, and assigned into either the cognitive impairment group (n=61) or the normal cognitive group (n=71). Gender, age, education, body mass index (BMI), waist hip ratio (WHR), total cholesterol (TC), triglyceride (TG), C-reactive protein (CRP), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), creatinine (Cr), fasting plasma glucose (FPG), fasting insulin (FINS), homeostasis model of assessment for insulin resistance index (HOMA-IR), systolic blood pressure, diastolic blood pressure, smoking history, atherosclerosis and the proportion of uncontrolled hypertension were compared between the two groups. Multi-factorial logistic regression analysis was performed.

Results

No significant differences were found in gender, age, TC, CRP, HDL-C, LDL-C, Cr, BP, smoking history, atherosclerosis and the proportion of uncontrolled hypertension between the two groups. The cognitive impairment group had lower education levels, and higher BMI, WHR, TG, FPG, FINS, and HOMA-IR levels than the control group. Logistic regression analysis revealed the levels of education, BMI, WHR, and HOMA-IR as independent factors that predict cognitive impairment in patients.

Conclusion

Our study demonstrates that poor education and increased BMI, WHR, and HOMA-IR are independent risk factors for cognitive impairment in elderly patients with hypertension. Insulin resistance plays an important role in the development of cognitive impairment in primary elderly hypertensive patients.     

Retinol binding protein 4 correlates with and is an early predictor of carotid atherosclerosis in type 2 diabetes mellitus patients

The association of retinol binding protein 4 (RBP4) with atherosclerosis of the carotid artery in type 2 diabetes mellitus (T2DM) remains undefined. We aimed to investigate the correlation of RBP4 expression with atherosclerosis of the carotid artery in T2DM. A total of 1,076 subjects were investigated for intima-media thickness of the bilateral common carotid arteries, and they were divided into three groups: in group I, patients had normal neck vascular ultrasound, in group II, intimal carotid artery media thickness was equal to or more than 1 mm, and in group III, carotid artery plaque was present. Height, weight, blood pressure (BP), fasting plasma glucose (FPG), hemoglobin A1c (HbA1c), total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), apolipoprotein A-1 (apoA-1), apolipoprotein B (apoB) and lipoprotein (a) [Lp(a)] were determined by routine laboratory methods. RBP4 and high sensitivity C reactive protein (HsCRP) were measured by an enzyme-linked immuno-sorbent assay, and insulin concentration was measured by an electrochemiluminescence sandwich immunoassay. Duration of diabetes, waist and BP, FPG, HbA1c, TG, TC, LDL-C, APOB, Lp(a), HsCRP, RBP4 and homeostasis model assessment insulin resistance index (HOMA-IR) were significantly lower in group I than in the other two groups (P<0.01, P<0.01). Plasma levels of HbA1c, RBP4, LDL-C, TC, HOMA-IR, HsCRP and Lp(a), waist and BP were significantly increased in group III than in group II (P<0.01). Multivariate logistic regression analysis showed that there were seven factors associated with the occurrence of carotid artery atherosclerosis and its risks in descending order were: high LDL-C, high waist, high HsCRP, duration of diabetes, high HOMA-IR, HbA1c and high RBP4. Our finding supported that RBP4 was positively correlated with carotid atherosclerosis in patients with T2DM and could be used as an early predictor of cardiovascular disease.     

385 C/A polymorphism of the fatty acid amide hydrolase gene is associated with metabolic syndrome in the Chinese Han population

Introduction

The endocannabinoid system participates in food intake, energy balance and lipid and glucose metabolism. The biological effects of cannabinoids are limited by the activation of the endocannabinoid degrading enzyme fatty acid amide hydrolase (FAAH). This study aims to analyse whether 385 C/A polymorphism of FAAH is associated with metabolic syndrome (MetS) in the Chinese Han population.

Material and methods

A total of 112 subjects at risk for MetS and 80 healthy controls from Fuzhou, China were genotyped for 385 C/A polymorphism of FAAH using TaqMan assay. Anthropometric measurements and biochemical assessments such as BMI, waist circumference, blood pressure, serum triglycerides (TG), serum total cholesterol, high-density lipoprotein-cholesterol, low-density lipoprotein-cholesterol, fasting plasma glucose, and plasma insulin levels were performed.

Results

CA and AA genotypes of FAAH had higher incidence in MetS subjects than in control subjects. CA and AA genotypes of FAAH in subjects with MetS had relatively elevated levels of waist circumference, body mass index, homeostasis model assessment of insulin resistance (HOMA-IR) and serum triglycerides, and lowered level of high-density lipoprotein cholesterol (HDL-c) compared with CC genotype in MetS subjects.

Conclusions

Results suggest that 385 C/A polymorphism of the FAAH gene may confer an increased risk of MetS in the Chinese Han population.     

精神分裂症共病代谢综合征患者血清同型半胱氨酸的对照研究

目的对精神分裂症共病代谢综合征(MS)患者血清同型半胱氨酸(Hcy)水平进行对照研究。方法 33例首次确诊为MS的精神分裂症患者作为观察组,33例不伴有MS的精神分裂症患者作为对照组,分别测定其空腹血清Hcy水平;同时测定腰围、体质量指数(BMI)、空腹血糖(FBG)、血脂[总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)]、血压[收缩压(SBP)/舒张压(DBP)]等MS相关指标。结果①观察组血清Hcy水平显著高于对照组,两组比较差异有统计学意义(t=-2.775,P0.01);②观察组高Hcy血症的发生率显著高于对照组,两组比较差异有统计学意义(χ2=6.061,P0.05);③观察组的血清Hcy水平与HDL-C、LDL-C具有相关性(r=-0.346,0.373;P0.05),而与腰围、BMI、FBG、TC、TG、SBP、DBP均无显著的相关;对照组的血清Hcy水平与腰围、BMI、FBG、TC、TG、HDL-C、LDL-C、SBP、DBP均无显著的相关性。结论与不伴发MS的精神分裂症患者相比,伴发MS的精神分裂症患者血清Hcy水平显著增高;伴发MS的精神分裂症患者的血清Hcy水平与HDL-C、LDL-C有关。     

Association of serum retinol binding protein 4 with adiposity and pubertal development in Korean children and adolescents

Retinol binding protein 4 (RBP4) has been postulated to provide a new link between obesity and insulin resistance. We aimed to assess the relationship between serum RBP4 and insulin resistance by investigating serum RBP4 levels in children and adolescents according to degree of obesity and pubertal stage. A total of 103 (30 lean, 39 overweight, 34 obese) were evaluated for serum RBP4, adiponectin, insulin, glucose and lipid profiles. RBP4 levels of obese and overweight groups were higher than those of lean group. RBP4 level was higher in pubertal group than in prepubertal group. RBP4 was positively correlated with age, height, weight, body mass index (BMI), abdominal circumference, systolic blood pressure, fasting insulin, homeostatic model assessment of insulin resistance (HOMA-IR), total cholesterol and triglyceride, and inversely with adiponectin. In the multiple linear regression analysis, RBP4 was found to be independently associated with pubertal stage, BMI and triglyceride but not with HOMA-IR. In conclusion, serum RBP4 level is related with degree of adiposity and pubertal development. The association of RBP4 with insulin resistance is supposed to be secondary to the relation between RBP4 and adipose tissue in children and adolescents.     

Predictors of hepatic steatosis in HBeAg-negative chronic hepatitis B patients and their diagnostic values in hepatic fibrosis

Objective: To investigate predictors of hepatic steatosis in HBeAg-negative chronic hepatitis B (CHB) patients and their diagnostic values in hepatic inflammation and fibrosis. Methods: A total of 106 HBeAg-negative CHB patients with clinically and pathologically proven steatosis and 98 patients without steatosis were recruited into this study. The levels of fasting blood glucose (FBG), fasting insulin (FINS), triglyceride (TG), cholesterol (CHOL), alanine aminotransferase (ALT), aspartate aminotransferase (AST), albumin (Alb), globulin (Glb), HBV DNA, body mass index (BMI), homeostatic model assessment of insulin resistance (HOMA-IR) and pathological changes of the liver in inflammation, fibrosis and fatty deposition were examined in all patients. Results: The levels of BMI, HOMA-IR, FBG, insulin, TG, and CHOL were significantly higher in patients with steatosis than those without steatosis (all P<0.05). But ALT, AST and HBV DNA levels were significantly lower in patients with steatosis (all P<0.05). Logistic regression analysis showed that only FINS was a significant predictor for hepatic steatosis (P<0.05); FINS and Glb were significant predictors for hepatic inflammation (all P<0.05); BMI and TC were significant predictors for hepatic fibrosis (all P<0.05). Conclusions: Hepatic steatosis, a common disease in HBeAg-negative CHB patients, was positively associated with BMI, FBG, FINS, TG, TC, GGT, ALP and HOMA-IR. In these patients, the prevalence of hepatic inflammation and fibrosis was also increased.     

Association of the rs7395662 SNP in the MADD-FOLH1 and Several Environmental Factors with Serum Lipid Levels in the Mulao and Han Populations

Background: The rs7395662 single nucleotide polymorphism (SNP) in the MADD-FOLH1 has been associated with serum lipid traits, but the results are inconsistent in different populations. The present study was undertaken to investigate the association of rs7395662 SNP and several environmental factors with serum lipid levels in the Guangxi Mulao and Han populations.Method: A total of 721 subjects of Mulao and 727 subjects of Han Chinese were randomly selected from our previous stratified randomized samples. Genotyping of the SNP was performed by polymerase chain reaction and restriction fragment length polymorphism combined with gel electrophoresis, and confirmed by direct sequencing.Results: Serum apolipoprotein (Apo) B levels were higher in Mulao than in Han (P < 0.01). The allelic and genotypic frequencies in Han were different between males and females (P < 0.05 for each), but there was no difference between Mulao and Han or between Mulao males and females. The levels of low-density lipoprotein cholesterol (LDL-C) and ApoB in Mulao females were different among the genotypes (P < 0.05), the G allele carriers had higher LDL-C and ApoB levels than the G allele non-carriers. The levels of total cholesterol (TC), triglyceride (TG), LDL-C and ApoB in Han males and TC, TG and high-density lipoprotein cholesterol (HDL-C) in Han females were different among the genotypes (P < 0.05-0.01), the subjects with GG genotype in Han males had higher TC, TG, and ApoB and lower LDL-C levels than the subjects with AA or AG genotype, and the G allele carriers in Han females had lower TC and HDL-C levels than the G allele non-carriers. The levels of LDL-C and ApoB in Mulao females were correlated with the genotypes (P < 0.05 for each). The levels of HDL-C and ApoAI in Han males and HDL-C in Han females were correlated with genotypes (P < 0.05-0.001). Serum lipid parameters were also correlated with several environmental factors in both ethnic groups (P < 0.05-0.01).Conclusion: The association of rs7395662 SNP and serum lipid levels is different between the Mulao and Han populations, and between males and females in both ethnic groups.