吉林地区农村中老年体脂肪分布与血脂水平的关系

目的 分析中老年人体脂肪分布与血脂水平的相关性.方法 2010 ～2011年吉林农村整群抽样1 332名40 ～70岁朝鲜族和汉族中老年进行体检,采用日本TANITA株式会社生产的BC-600型体成分计测定体脂肪指标,检测血脂指标,分析体质指数(BMI)、腰臀比(WHR)、体脂肪率(BFP)与血脂异常的相关性.结果 血脂异常患病率为46.4％,朝鲜族高于汉族(P =0.001),血脂异常组体脂肪指标和血脂指标均高于正常组(P＜0.01).BMI、WHR和BFP均与甘油三酯(TG)、总胆固醇(TC)和低密度脂蛋白胆固醇(LDL-C)呈正相关,与高密度脂蛋白胆固醇(HDL-C)呈负相关.腹型肥胖组血脂异常患病率明显高于全身肥胖组(P＜0.05).腹型肥胖组TG异常检出率高于全身肥胖组,而HDL-C异常检出率低于全身性肥胖组(P＜0.05).结论 血脂异常患病率存在民族差异,体脂肪分布与血脂异常指标和血脂水平有关.     

体脂分布与血脂代谢的相关性研究

目的:利用双能X线吸收法(dual-energy X-ray absorptiometry,DEXA)测量体脂分布,分析冠心病与对照组男、女两性不同体脂分布及脂代谢特点。方法:将85位受试者分为冠心病组及对照组,逐一测量身高、体质量、腰围(WC)、臀围(WH)、计算体质量指数(BMI)及腰臀比(WHR);利用DEXA法记录不同部位脂肪含量,计算全身脂肪比例(Total Fat%),腰臀部脂肪比(A/G);检测总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)及低密度脂蛋白胆固醇(LDL-C)各项血脂指标。比较2组间体脂、血脂测量指标差异,并分别比较2组间及冠心病组内男性和女性的体脂分布差异,行体脂与血脂的相关性分析。结果:冠心病组的WC、A/G均高于对照组,差异有统计学意义(P<0.05)。冠心病组男性的BMI、WC、WHR及A/G高于健康人组男性,差异有统计学意义(P<0.05),2组女性间比较各体脂指标之间差异无统计学意义。冠心病组内男性WC、WHR高于女性,差异有统计学意义(P<0.05)。男性HDL-C与A/G、WHR呈显著负相关(P<0.05)。结论:男、女两性体脂分布特点不同,男性更易患腹型肥胖,引起高TG、低HDL为特点的脂代谢紊乱,与冠心病密切相关。     

2型糖尿病老年女性与肥胖、糖脂代谢关系

测60例患T2DM老年女性病例组和40例正常对照组的BMI和WHR及血脂血糖;双能X线吸收仪DEXA精确的测量身体脂肪的分布.结果1、T2DM组的体重、血压、BMI、WHR、TC、TG、LDL-C、水平高于对照组;前组的Lp(a)、HDL-C则低于后组,差别有统计学意义(P＜0.05).2、肥胖组(WHR＞0.85)的TG、2hPG、ApoB均值大于非肥胖组(WHR≤0.85);前组的HDL-C、Lp(a)均值小于后组(P＜0.05).3、WHR与LDL-C、TC、ApoB、TG、2hPG呈显著正相关,而与HDL-C呈显著负相关(P＜0.05);BMI仅与TG、2hPG呈正相关(P＜0.05).4、T2DM组与对照组比较,前者的上半身脂肪量、体脂肪率、上下半身脂肪率比均高于后者,下半身脂肪率却明显低,两组差别有显著性统计意义(P＜0.05).结论高脂血症老年女性患者的身体脂肪分布呈现上半身型,且易发生糖尿病;2型糖尿病老年女性患者糖代谢紊乱与脂代谢紊乱及肥胖有密切关系.     

初发甲状腺功能异常患者与血脂和肥胖的相关性

目的探讨初发甲状腺功能异常患者与血脂变化和肥胖的相关性。方法选取76例初发甲状腺功能减退症患者(甲减组)、45例初发甲状腺功能亢进症患者(甲亢组)和50例健康成人(对照组)。对甲减组患者服用左甲状腺素钠,甲亢组患者服用甲巯咪唑治疗6个月。测定治疗前后体重、身高、体重指数(BMI)、腰围(WC)、腰围/臀围比值(WHR)、血压、肝功以及血清中甲状腺功能〔游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺激素(TSH)、甲状腺球蛋白抗体(TGAb)、甲状腺过氧化物酶抗体(TPOAb)〕、血脂〔甘油三酯(TC)、总胆固醇(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)〕的水平;并对各组及治疗前后进行比较与相关性分析。结果甲减组患者BMI、WC、WHR、TC、TG、LDL-C、TSH、TGAb、TPOAb水平显著高于对照组(P0.01),FT3、FT4水平显著低于对照组(P0.01);甲亢组患者BMI、WC、WHR、TC、TG、LDL-C、TSH水平显著低于对照组(P0.01),FT3、FT4、TGAb、TPOAb水平显著高于对照组(P0.01);甲状腺功能异常患者治疗前后相比BMI、WC、WHR、TC、TG、LDL-C、TSH、FT3、FT4相比差异显著(P0.01)。甲状腺功能异常患者WC、WHR与TPOAb具有显著相关性(P0.05)。结论甲状腺功能异常患者存在血脂代谢紊乱,甲状腺自身抗体与腹型肥胖存在关联。     

2型糖尿病患者超声定量肝脏脂肪含量的临床意义

目的 分析超声定量检测T2DM患者肝脏脂肪含量(LFC)和各临床资料及血脂组分的相关性. 方法 采用超声定量检测306例住院T2DM患者LFC,分别记录性别、年龄、体重、BMI、WC、臀围(HC)、WHR及病程等临床资料,并检测TC、TG、HDL-C、LDL-C,根据LFC三分位分为Q1～Q3组,分析其与各临床资料及血脂组分的相关性. 结果 随LFC增加,各组体重、BMI、WC、HC、WHR、TG均逐步增加,而年龄和病程逐步递减(P＜0.05).校正性别、年龄、BMI后,偏相关分析显示,LFC与TG呈线性正相关(r=0.216,P=0.000). 结论 T2DM患者超声定量检测LFC对非酒精性脂肪性肝病诊治有一定的临床应用价值,其与体重、BMI、WC、HC、WHR有关,与血清TG水平呈正相关.     

4784例老年男性血脂分布的特点及与体质指数关系的研究

目的 了解老年男性血脂分布的规律及与体质指数(BMI)的关系,从血脂紊乱的角度探讨老年男性的体质量控制问题.方法 对4784例老年男性体检者进行调查并测定血脂水平,按年龄分为60～69岁组、70～79岁组和80～96岁组,按BMI水平分为低体质量组(BMI<18.5 kg/m2),正常体质量组(BMI:18.5～23.9 kg/m2),超质量组(BMI:24.0～27.9 kg/m2),肥胖组(BMI≥28.0 kg/m2).结果 4784例老年男性总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)分别为(5.1±0.9)mmol/L、(3.0±0.8)mmol/L、(1.5±1.0)rmmol/L、(1.3±0.3)mmol/L,血脂异常的检出率为44.8%(2141例),其中TC、TG、HDL-C异常的检出率分别为10.4%(497例)、9.3%(445例)、29.8%(1425例)和19.4%(928例).不同年龄组随增龄TG水平降低,HDL-C水平升高(均P<0.01),80～96岁组的TC和LDL-C水平有降低趋势(P<0.05).老年男性超体质量占46.8%(2239例),肥胖占15.5%(740例).随BMI水平的升高,TG水平亦升高,而HDL-C则随BMI升高降低,不同体质量组TC和LDL-C比较差异无统计学意义.80～96岁组亦以高TG和低HDL-C为主要类型的血脂异常,其血脂分布特点与70～79岁组相似.80～96岁组肥胖和超体质量的检出率最低,分别为44.6%(228例)和11.9%(61例).结论 老年男性血脂异常以高TG和低HDL-C为主,TC升高的检出率高于2002年全国普查的结果;超体质量、肥胖的检出率接近发达国家水平;老年男性随增龄TC和LDL-C水平下降,而HDL-C水平有上升趋势.     

血脂水平对胰岛功能的影响在2型糖尿病和正常人群中存在差异

研究血脂对胰岛功能的影响在2型糖尿病及正常人群中是否表现不同。结果表明,在正常人群中,处置指数(DI)0与高密度脂蛋白胆固醇(HDL-C)呈正相关,DI30与总胆固醇( TC)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)呈负相关,DI120与 TC、LDL-C 呈负相关;在2型糖尿病中,DI0与 TC、LDL-C 呈负相关,DI30与 TC、TG、LDL-C、TG/ HDL-C 呈负相关,DI120与 TC、TG、LDL-C、TG/ HDL-C 呈负相关。     

东莞市东部地区35岁以上居民血脂水平及分布特征

目的探讨东莞市东部地区35岁以上居民血脂水平及分布特征。方法 2011年7月至2012年4月,采用整群抽样的方法,对东莞市横沥镇35岁及以上的19 058户籍居民进行问卷调查及总胆固醇(total cholesterol,TC)、三酰甘油(triacylglycerol,TG)、高密度脂蛋白胆固醇(high-density lipoprotein cholesterol,HDL-C)和低密度脂蛋白胆固醇(low-density lipoprotein cholesterol,LDL-C)检测。结果完成问卷调查、血脂检测共9 921人。血脂异常标化患病率为35.47%。TC、TG、HDL-C、LDL-C浓度分别为(5.20±1.02)mmol/L、(1.56±1.34)mmol/L、(1.49±0.38)mmol/L、(3.03±0.90)mmol/L。血脂异常类型以高TG、高TC为主。男性49岁以下年龄段组的TC、LDL-C浓度及LDL-C血症患病率较女性同年龄段组高,50岁以上较女性低,差异有统计学意义(P<0.05)。男女间TC、TG、HDL-C浓度及高TC、高TG、低HDL-C血症患病率比较,差异均有统计学意义(P<0.05)。结论东莞市东部地区35岁以上居民TC、TG、LDL-C浓度及高TC、高TG、高LDL-C患病率较高;血脂异常类型以高TG、高TC为主;中年男性及更年期以后女性血脂水平较高。     

单纯性肥胖病中学生患者血清脂联素与脂代谢异常相关性研究

目的探讨单纯性肥胖男中学生的血清脂联素(APN)水平与脂代谢异常的相关性。方法调查辽宁省沈阳市部分地区13~18岁男中学生共386例,测量体重指数(BMI)、腰围(WC)及体重,按BMI将其分成正常组(204例)和肥胖组(182例)。采用放射免疫分析法测定两组人群的血清APN水平,分析APN与丙氨酸氨基转移酶(ALT)、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)和胰岛素抵抗指数(HOMA-IR)的关系。结果肥胖组BMI、WC、ALT、LDL-C、TG和HOMA-IR均高于正常组;肥胖组血清APN水平为(16.14±10.08)μg/mL,低于正常组的(21.60±12.90)μg/mL。相关分析显示,血浆血清APN与BMI、WC、ALT、LDL-C、TC、TG和HOMA-IR之间呈负相关,与HDL-C呈正相关。结论单纯性肥胖男中学生的血清APN水平较体重正常者明显降低,APN可能与脂代谢异常密切相关。     

社区中老年人血脂异常情况调查分析

对本社区中老年人血清总胆固醇（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）进行筛查,统计不同性别血脂异常发生率。结果：血脂异常检出率为35.13%,男性TG异常、LDL-C异常、HDL-C异常发生率明显高于女性,两者比较差异有统计学意义（P〈0.05）;男性的TC、TG、LDL-C水平明显高于女性,而男性HDLC水平明显低于女性,两组血脂水平比较差异有统计学意义（P〈0.05）。结论：本社区中老年人血脂异常检出率高,尤其男性,需加强防治工作。     

Excess accumulation of body fat is related to dyslipidemia in normal-weight subjects

OBJECTIVE: To assess the relationship of fat mass (FM) and its distribution to hypertension and dyslipidemia in normal-weight Japanese individuals. DESIGN: Cross-sectional study. SUBJECTS: Apparently healthy Japanese subjects with a body mass index (BMI) between 20 and 23.5 kg/m(2) (265 males and 741 females, age 21-69 y). MEASUREMENTS: BMI, waist circumference (WC), waist-hip ratio (WHR), systolic and diastolic blood pressure, serum levels of total cholesterol (TC), high-density lipoprotein-cholesterol (HDL-C) and triglyceride (TG) were measured. Low-density lipoprotein-cholesterol (LDL-C) was calculated by the Friedewald formula. Percentage fat mass (%FM) and trunk fat mass-leg fat mass ratio (FM(trunk)/FM(legs)) were obtained by dual-energy X-ray absorptiometry. RESULTS: WC, WHR, %FM and FM(trunk)/FM(legs) were significantly correlated with TC, LDL-C, HDL-C and TG with the tendency of FM(trunk)/FM(legs) to show the strongest correlations. For %FM and FM(trunk)/FM(legs) in both sexes, odds ratios (ORs) of the third tertiles with respect to the first tertiles increased for LDL-C elevation, TG elevation and dyslipidemia. In males, ORs of the third tertiles of WC were significantly high for LDL-C elevation and dyslipidemia whereas those of WHR were high for TG elevation and dyslipidemia. ORs of the third tertiles of WC and WHR were significantly high for TG elevation in females. BMI was not associated with the risk of abnormal lipid levels. ORs for hypertension showed significant increases in none of the variables of obesity. CONCLUSIONS: Excess accumulation of FM, especially to the upper body, was related to dyslipidemia in normal-weight subjects. Simple anthropometric variables, WC and WHR, may be useful for screening and management of dyslipidemia in these subjects.     

Liver fat is not a marker of metabolic risk in lean premenopausal women

We examined the independent associations among abdominal adipose tissue (AT) depots, liver fat, cardiorespiratory fitness (CRF), and metabolic risk factors in 86 lean premenopausal women. We measured abdominal AT and liver fat by computed tomography (CT), and CRF by a maximal treadmill exercise test. Liver fat was not related to any abdominal AT depot, metabolic risk factor, or CRF (P > .10). Visceral AT mass (kilograms) remained a significant (P < .05) predictor of total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), TC/high-density lipoprotein cholesterol (HDL-C), and LDL-C/HDL-C after statistical adjustment for CRF. Abdominal subcutaneous AT mass was also a significant (P < .05) correlate of TC/HDL-C and LDL-C/HDL-C after control for CRF. Visceral AT remained a significant predictor (P < .05) of TC and LDL-C after control for abdominal subcutaneous AT. Conversely, subcutaneous AT did not remain a significant correlate after control for visceral AT. However, the deep subcutaneous AT depot remained significantly associated with LDL-C, TC/HDL-C, and LDL-C/HDL-C after control for visceral AT. In contrast, visceral AT remained correlated with triglycerides (TG) alone, after control for the deep subcutaneous AT. These observations suggest that liver fat is not a determinant of metabolic risk in lean women. Conversely, both visceral and the deep subcutaneous depot are determinants of metabolic risk in premenopausal woman despite the absence of obesity.     

The relationship of abdominal fat mass assessed by helical or conventional computed tomography to serum leptin concentration

In the present study, we focused on the relationship of intra-abdominal visceral fat (VF) or subcutaneous fat (SF) mass to serum leptin levels, and also on the relationship of leptin to serum lipid and lipoprotein concentration. Subjects with obesity (26 men, 26 women) were recruited for this study. We obtained helical CT scans with a tube current of 150 mA, voltage of 120 kV and 2:1 pitch (table speed in relation to slice thickness), starting at the upper edge of the liver and continuing to the pelvis. The intra-abdominal visceral fat (VF) volume was measured by drawing a line within the muscle wall surrounding the abdominal cavity. The abdominal SF volume was calculated by subtracting the VF volume from the total abdominal fat volume. By comparison, the abdominal VF and SF areas were determined at the umbilical level by the established slice-by-slice CT scanning technique. We found: 1) abdominal SF mass, either as volume or area, was a more important determinant of serum leptin than was VF mass; 2) among TC, TG, HDL-C and LDL-C, only TG had a positive correlation to serum leptin levels in men, whereas in women no lipid parameters had any relationship with leptin; and 3) VF mass had a positive correlation to serum TC and TG in men, whereas SF did not.The present study provides considerable evidence on the relationship between abdominal fat mass and serum leptin, and shows that the relationships between serum leptin and serum lipids and lipoproteins are not straightforward. We also suggest that fat area measured by conventional CT is a better indicator than its corresponding volume assessed by helical CT, based on the present results showing its closer association to serum lipids.     

2型糖尿病并内脏型肥胖患者内脏脂肪面积的分析

目的探讨2型糖尿病（T2DM）并内脏型肥胖患者的临床特点及内脏脂肪面积的相关性分析。 方法本研究收集2018年5月至2018年9月在山西大同大学第一附属医院住院的共350例T2DM患者的临床资料,测量内脏脂肪面积(VFA)和皮下脂肪面积( SFA),以VFA≥100 cm²作为内脏型肥胖的诊断标准。根据VFA值分为单纯2型糖尿病对照组(VFA<100 cm²)和糖尿病合并内脏型肥胖观察组(VFA≥100 cm²),测定所有患者的身高、体重、体质量指数（BMI）、腰臀比（WHR）及血糖、血脂、肾功能等指标,比较两组间差异。 结果T2DM并内脏型肥胖组中身高、体重、BMI、头围、颈围、腰围、臀围、WHR、VFA、SFA、甘油三脂（TG）、总胆固醇（TC）、血尿酸（UA）、舒张压均高于对照组（P<0.05）,以VFA为应变量,其他各因素为自变量,进行多元线性回归分析：体重、BMI、腰围、TG、舒张压被纳入回归方程,是T2DM并内脏型肥胖的独立危险因素。 结论体重、BMI、腰围、TG、舒张压的增高是VFA的危险因素,与T2DM并腹型肥胖相关。     

The impact of diabetes on cardiovascular risk factors and outcomes in a native Canadian population.

We measured cardiovascular disease (CVD) risk factors and their relationship to glucose intolerance in a Native Canadian population with very high rates of Type 2 diabetes mellitus. Five hundred and twenty five study-eligible Ojibwa-Cree individuals age 18 and over in the community of Sandy Lake, Canada who had participated in a population-based survey were studied. Diabetes status, plasma concentrations of total cholesterol (TC), triglycerides (TG), high density lipoprotein cholesterol (HDL-C), calculated low density lipoprotein-cholesterol (LDL-C), waist/hip ratio (WHR), BMI, systolic and diastolic BP, and history of smoking were compared to a standard national population. Extremely high rates of obesity (BMI and WHR) were identified in the study population and were associated with increasing glucose intolerance for both males and females. Rates of smoking exceeded 70 and 80% in females and males, respectively. Interestingly, despite obesity individuals who had normal glucose tolerance had significantly lower rates of high risk TC, TG, LDL-C, and HDL-C levels compared to a national Canadian population survey. However, with worsening glucose intolerance, TC, TG, LDL-C and HDL-C dramatically deteriorated in comparison to nationally published levels. These changes in cardiovascular risk factors, as a consequence of diabetes, appear to result in increased clinical outcomes. Admission to hospital for Ischemic Heart Disease (IHD) for Sandy Lake residents increased from a rate of 34.8/10,000 to 109.1/10,000 in 15 years. Although this and similar populations have historically reported low rates of CVD, the impact of diabetes on lipid risk factor is having devastating consequences on cardiovascular outcomes. This trend is expected to continue unless the high rates of diabetes can be modified.     

Cardiovascular disease risk factors in males with normal body weight and high waist-to-hip ratio.

BACKGROUND: Overweight and the distribution of body fat are both associated with the development of cardiovascular diseases (CVD). The relation of abdominal body fat distribution to CVD may depend on the degree of obesity. OBJECTIVE: The purpose of the present study was to evaluate the cardiovascular disease risk factor levels in males with high waist-to-hip ratio (WHR) in the absence of overweight. DESIGN: Cross-sectional study of 231 male subjects (21-69 years old). METHODS: Anthropometric measurements (height, weight, BMI, fat%, skinfolds, waist circumference, WHR), systolic and diastolic blood pressure (BPsyst, BPdiast), serum lipids and lipoproteins (CHOL, HDL-C, LDL-C, TG), glucose (GL), and physical working capacity. A questionnaire was drawn up to evaluate physical activity level and lifestyle patterns. RESULTS: Subjects with WHR > or = 0.9, BMI < 27.0 and with WHR > or = 0.9, BMI > or = 27.0 showed statistically significant differences in all measured anthropometric and blood pressure values in comparison with the control group (WHR < 0.9, BMI < 27.0). Compared with the controls, subjects with WHR > or = 0.9, BMI > or = 27.0 had significantly higher risk (OR) for hypertension and elevated LDL-C. Physical activity was a significant determinant of the high WHR. CONCLUSIONS: WHR has independent associations with some CVD risk factors, but the effect increases with weight.     

Contributions of regional adipose tissue depots to plasma lipoprotein concentrations in overweight men and women: possible protective effects of thigh fat

Anthropometry and dual-photon absorptiometry (DPA) were used to examine associations of regional adiposity with plasma lipid, lipoprotein, and lipoprotein subfraction mass concentrations in moderately overweight men and women. Among 130 women, waist to thigh girth ratio (WTR) correlated with triglycerides (TG) (r = .33, P less than .0001) and negatively with high-density lipoprotein (HDL)-cholesterol (HDL-C) (r = -.37, P less than .0001) concentration, as expected. While WTR did not correlate with low-density lipoprotein (LDL)-cholesterol (LDL-C) it correlated positively with the mass subfraction of small (Sfo, 0 to 7) LDL (r = .38, P less than .0001), and negatively with large (Sfo, 7 to 12) LDL (r = -.31, P less than .01). Among 133 men, similar though weaker relationships were found. Thigh girth correlated positively with HDL and HDL2-C and mass, and with LDL particle size among women. Multivariate analysis suggests that association of WTR with lipoprotein values known to carry risk of coronary heart disease (CHD) are due at least as much to effects of thigh girth as to deleterious effects of waist girth. Estimates of fat weight in thigh and abdominal regions by DPA support thigh fat as contributing to these effects of thigh girth. Thigh fat may contribute to lipoprotein profiles that predict lower risk of cardiovascular disease.     

Lipoprotein abnormalities are associated with insulin resistance in South Asian Indian women

South Asian Indians are at increased risk of coronary heart disease (CHD), possibly related to dyslipidemia characterized by high triglyceride (TG) and low high-density lipoprotein cholesterol (HDL-C) concentrations. The importance of differences in insulin resistance as compared to abdominal obesity in the development of this atherogenic lipoprotein profile is not clear, and the current cross-sectional study was initiated to examine this issue. Consequently, we defined the relationship between differences in insulin-mediated glucose uptake (IMGU), abdominal obesity, and various measures of lipoprotein metabolism known to increase CHD risk in 52 apparently healthy women of South Asian Indian ancestry. IMGU was quantified by determining the steady-state plasma glucose (SSPG) concentration during the insulin suppression test and abdominal obesity was assessed by measurement of waist circumference (WC), and the population was divided into tertiles on the basis of their SSPG results. Results indicated that although there were significant differences in SSPG, TG, and HDL-C values, there were no differences in age, blood pressure, total cholesterol, low-density lipoprotein cholesterol, body mass index, or WC between the highest and lowest tertiles. SSPG concentrations were significantly correlated with both log TG (r = 0.44, P = .001) and HDL-C (r = -0.44, P < .001) concentration, whereas TG and HDL-C concentrations were not significantly related to WC. Furthermore, the relationships between SSPG concentration and TG and HDL-C remained significant when adjusted for age and WC. Finally, a more extensive lipoprotein analysis indicated that the most insulin resistant tertile had higher TG concentrations, lower concentrations of HDL-C and HDL-C subclasses, and smaller and denser low-density lipoprotein particles than the most insulin sensitive tertile, despite the 2 groups not being different in age, BMI, or WC. These results indicate that a highly atherogenic lipoprotein profile seen in South Asian Indian women is significantly associated with insulin resistance independent of differences in WC.     

不同冠状动脉病变程度冠心病患者血浆脂联素水平及其相关性研究

目的:了解不同冠状动脉(冠脉)病变程度的冠心病(CHD)患者血浆脂联素(APN)水平及其与胰岛素抵抗(IR)、血糖(FPG)、血脂、血压、肥胖、冠脉病变程度的关系.方法:选取冠脉造影检查者共128例作为研究对象,根据冠脉病变支数,分为单支病变组32例、双支病变组30例、多支病变组32例和冠脉造影正常的对照组34例.测量血压、身高、体重、腰围(WC)和臀围.采空腹静脉血,测定血浆APN、胰岛素(FINS)、FPG、TC、TG、HDL-C、LDL-C、载脂蛋白A1(apo-A1)和载脂蛋白B(apo-B).计算体质指数(BMI)、腰臀比(WHR)、胰岛素敏感指数(ISI)和Gensini积分.结果:CHD各组血浆APN水平低于对照组(P＜0.01).血浆APN水平与收缩压、舒张压、WC、BMI、WHR、TC、LDL-C、FINS、Gensini积分均呈负相关(P＜0.05或0.01),与ISI呈正相关(P＜0.01).均衡年龄、血压、FPG、血脂、肥胖等影响后,APN仍与Gensini积分、FINS、ISI存在相关性(P＜0.01).回归分析显示,ISI、WC和Gensini积分是影响血浆APN水平的独立因素.结论:CHD患者血浆APN水平降低并与冠脉病变程度密切相关,与IR、血脂、血压和肥胖存在一定的相关性.     

Lipids, lipoproteins, lifestyle, adiposity and fat-free mass during middle age: the Fels Longitudinal Study

INTRODUCTION: Although lipid profiles tend to worsen with age, it is not fully known if such age-related changes are influenced primarily by body composition and lifestyle or by other aspects of aging. OBJECTIVE: We investigated the extent to which the fat and fat-free components of body mass index (BMI) and lifestyle factors influence patterns of change in lipids independent of age. DESIGN: Serial data were analyzed using sex-specific longitudinal models. These models use serial data from individuals to assume a general pattern of change over time, while allowing baseline age and the rate of change to vary among individuals. SUBJECTS: Serial data were obtained from 940 examinations of 269 healthy white participants (126 men, 143 women), aged 40-60 years, in the Fels Longitudinal Study. MEASUREMENTS: Measurements included age, the fat (FMI) and fat-free mass (FFMI) components of BMI, high-density lipoprotein (HDL-C), low-density lipoprotein (LDL-C), triglycerides (TG), total cholesterol (TC), fasting glucose and insulin, physical activity, alcohol use and smoking, and women's menopausal status and estrogen use. RESULTS: In both sexes, increased FMI was significantly associated with increased LDL-C, TG and TC, and decreased HDL-C. Increased FFMI was significantly related to decreased HDL-C and increased TG. Independent age effects remained significant only for LDL-C and TC in men and TC in women. Increased insulin was significantly related to increased TG in women. Moderate alcohol consumption was associated with higher HDL-C in men. Physical activity lowered male LDL-C and TC levels, and increased female HDL-C levels. Menopause was associated with increases in LDL-C. Premenopausal women not using estrogen had significantly lower HDL-C, TG, and TC than postmenopausal women taking estrogen. CONCLUSIONS: (1) Age is an important independent predictor for LDL-C and TC in men, and TC in women, but it is not as influential as body composition and lifestyle on HDL-C and TG in men and women, and LDL-C in women. (2) Increasing FMI is the major contributor to elevated TC, LDL-C and TG levels, and decreased HDL-C levels in men and women. (3) FFMI significantly influences HDL and TG levels in both sexes. (4) Maintaining a lower BMI via a reduced fat component may be more beneficial in lowering CVD risks than other factors.