中老年人群血脂水平对新发颈动脉斑块的预测作用

目的 了解2002年至2007年中老年人群颈动脉斑块的变化情况,评价基线血脂水平对新发颈动脉斑块的预测作用.方法 研究样本来自中美队列中的石景山人群和多省市队列中的北京大学社区人群.2002年9月对这两个人群进行基线颈动脉超声检查和心血管病危险因素调查,2007年9至10月复查颈动脉超声.以两次颈动脉检查数据完整的2000名中老年人为研究对象,对基线血脂水平与颈动脉斑块的关系进行分析.结果 (1)2002年至2007年,颈动脉斑块患病率男性从30.3%增加到62.2%,女性从21.5%增加到51.5%;新发斑块率男性为41.8%,女性为34.1%.(2)男女两性颈动脉新发斑块率随着基线总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、非高密度脂蛋白胆固醇(non-HDL-C)及总胆固醇与HDL-C比值(TC/HDL-C)水平的增高而增加,其变化趋势差异均有统计学意义(P＜0.05或P＜0.01).(3)交叉分析显示,LDL-C,HDL-C,甘油三酯对斑块发生率有协同作用.(4)多因素分析显示,高LDL-C、高non-HDL-C和高TC/HDL-C是男女两性新发颈动脉斑块的独立影响因素(男性OR值分别为1.44、1.45、1.59,女性OR值分别为1.47、1.35、1.64,均P＜0.05).结论 2002年至2007年,中老年人群颈动脉斑块患病率在快速增长.高LDL-C、nonHDL-C和TC/HDL-C水平是中老年人群新发颈动脉斑块的独立预测指标.     

Aerobic exercise and lipids and lipoproteins in patients with cardiovascular disease: a meta-analysis of randomized controlled trials

PURPOSE: Use the meta-analytic approach to examine the effects of aerobic exercise on lipids and lipoproteins in adults with cardiovascular disease (CVD). METHODS: Studies were retrieved via electronic databases, review of reference lists from retrieved articles, including reviews, and hand searching. Inclusion criteria were: (1) randomized controlled trials, (2) aerobic exercise >or=4 weeks as an intervention, (3) studies published in English language only between January 1, 1955 and January 1, 2005, (4) studies published in journals or as dissertations or master's theses, (5) human subjects >or=18 years, (6) all subjects diagnosed with some type of CVD, and (7) pre and post data available for total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and/or triglycerides (TG). Random-effects models were used for data analysis. RESULTS: Of the more than 3,000 studies reviewed, a total of 10 representing 1,260 subjects (580 exercise, 680 control) were included in our analysis. There was a statistically significant increase of 9% in HDL-C (mean +/- SEM, 3.7 +/- 1.3 mg/dL; 95% CI, 1.2 to 6.1 mg/dL) and a statistically significant decrease of 11% in TG (-19.3 +/- 5.4 mg/dL; 95% CI, -30.1 to -8.5 mg/dL), but no statistically significant decreases in TC or LDL-C (TC, -8.8 +/- 6.8 mg/dL; 95% CI, -22.3 to 4.7 mg/dL; LDL-C, -7.7 +/- 6.0 mg/dL; 95% CI, -19.5 to 4.2 mg/dL). CONCLUSIONS: The present findings suggest that chronic aerobic exercise increases HDL-C and decreases TG in adults, especially men, with CVD.     

低密度与高密度脂蛋白胆固醇比值对冠心病的诊断价值

目的 探讨低密度脂蛋白胆固醇(LDL-C)和高密度脂蛋白胆固醇(HDL-C)浓度的比值与冠心病(CHD)的相关性。方法 对68例胸痛患者行冠状动脉造影,并同时测定其血脂成分。结果CHD组总胆固醇(TC)、血清甘油三酯(TG)、LDL-C、TC/HDL-C、TG/HDL-C、LDL-C/HDL-C高于对照组,HDL-C(低于对照组。LDL-C/HDL-C与CHD的相关性最强(OR=3.79,OR95％Cl=1.88-6.14)。结论 CHD患者存在多种血脂异常,LDL-C/HDL-C是一项有较好使用价值的CHD预测指标。     

Aerobic exercise and lipids and lipoproteins in children and adolescents: a meta-analysis of randomized controlled trials

OBJECTIVE: Use the meta-analytic approach to examine the effects of aerobic exercise on total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglycerides (TG) in children and adolescents. STUDY DESIGN: Randomized controlled trials which were limited to aerobic exercise >or=4 weeks in children and adolescents 5-19 years of age. RESULTS: Twelve outcomes representing 389 subjects were available for pooling. Using random-effects modeling, a trend for statistically significant decreases of 12% was found for TG (X +/-S.E.M., -11.0+/-6.1mg/dl; 95% CI, -22.8-0.8 mg/dl) with no statistically significant changes for TC, HDL-C, and LDL-C. Decreases in LDL-C were associated with increased training intensity (r=-0.89; 99% CI, -0.99 to -0.04) and older age (r=-0.90; 99% CI, -0.99 to -0.25) while increases in HDL-C were associated with lower initial HDL-C (r=-0.75; 99% CI, -0.94 to -0.80). Statistically significant decreases in TG were observed in overweight/obese subjects with a trend for increases in HDL-C (TG, X +/-S.E.M., -23.9+/-7.0mg/dl; 95% CI, -37.6 to -10.1mg/dl; HDL-C, X +/-S.E.M., 4.0+/-2.3mg/dl; 95% CI, -0.5-8.5mg/dl). CONCLUSIONS: Aerobic exercise decreases TG in overweight/obese children and adolescents.     

Lipid levels and risk of new-onset atrial fibrillation: A systematic review and dose-response meta-analysis

Lipid levels are closely associated with health, but whether lipid levels are associated with atrial fibrillation (AF) remains controversial. We thought that blood lipid levels may influence new-onset AF. Here, we used a meta-analysis to examine the overall association between lipid levels and new-onset AF. PubMed and EMBASE databases were searched up to 20 December 2019. We conducted a systematic review and quantitative meta-analysis of prospective studies to clarify the association between lipid levels and the risk of new-onset AF. Sixteen articles with data on 4 032 638 participants and 42 825 cases of AF were included in this meta-analysis. The summary relative risk (RR) for a 1 mmol/L increment in total cholesterol (TC) was 0.95 (95% CI 0.93-0.96, I² = 74.6%, n = 13). Subgroup analyses showed that follow-up time is a source of heterogeneity; for low-density lipoprotein cholesterol (LDL-C), RR was 0.95 (95% CI 0.92-0.97, I² = 71.5%, n = 10). Subgroup analyses indicated that adjusting for heart failure explains the source of heterogeneity; for high-density lipoprotein cholesterol (HDL-C), RR was 0.97 (95% CI 0.96-0.99, I² = 26.1%, n = 11); for triglycerides (TGs), RR was 1.00 (95% CI 0.96-1.03, I² = 81.1%, n = 8). Subgroup analysis showed that gender, age, follow-up time, and adjustment for heart failure are sources of heterogeneity. Higher levels of TC, LDL-C, and HDL-C were associated with lower risk of new-onset AF. TG levels were not associated with new-onset AF in all subjects.     

Low-density lipoprotein cholesterol: association with mortality and hospitalization in hemodialysis patients

BACKGROUND/AIMS: Hypocholesterolemia is a common finding in hospitalized elderly people, critically ill surgical patients, septic patients and end-stage renal disease patients. The different effect of lipid subfractions on patients with end-stage renal disease has never been demonstrated. We aim to study the effect of lipid subfractions on hospitalization and mortality in maintenance hemodialysis (MHD) patients. METHODS: Lipid subfractions, including total cholesterol (TC), triglycerides (TG), high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C) were measured in 210 patients with MHD in a single dialysis center. Patients were stratified into three groups based on the tertiles of lipid levels, and differences in patient characteristics and survival were evaluated. RESULTS: Of a total of 22 deceased patients in our MHD cohort, infection-related mortality (50%) was higher than cardiovascular-related mortality (18.2%). Significant differences (p < 0.05) in the duration and frequency of hospitalization and in mortality events were observed when patients were divided into different subgroups according to the tertiles of baseline TC and LDL-C levels. Patients with lower LDL had significantly lower levels of albumin, TC and TG. The LDL-C tertiles were similar in terms of age, hypertension, diabetes, biochemical results, hematocrit, adequacy of hemodialysis and normalized protein catabolism rate. Both TC and LDL-C predicted survival (p < 0.001), but not TG and HDL-C in the Kaplan-Meier model. The Cox proportional hazard model demonstrated that baseline serum LDL-C was the best lipid subfraction in predicting all-cause death with an adjusted hazard ratio (95% confidence interval) for each 10 mg/dl of 0.752 (0.631-0.898; p = 0.002). CONCLUSIONS: We firstly demonstrated that lipid subfractions, including TC and LDL-C, predict poor outcomes in a MHD cohort with high infection-related mortality.     

The association of blood lipid parameters variability with ischemic stroke in hypertensive patients

Background and aimsThe relationship between lipid variability and stroke among patients with hypertension were inconclusive. We aimed to investigate the association of lipid variability with ischemic stroke in hypertensive patients.Methods and resultsThis retrospective cohort study included 4995 individuals with hypertension between 2013 and 2015, and recorded their status of ischemic stroke until the end of 2018. The variability in total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) were measured using the standard deviation (SD), coefficient of variation (CV), variability independent of the mean (VIM) and average absolute difference between successive values (ASV). Multivariate Cox proportional hazards models with hazard ratios (HRs) and 95% confidence interval (CI) were performed. There were 110 cases of ischemic stroke during a median follow up of 4.2 years. The multivariable adjusted HRs and 95% CIs comparing the highest versus the lowest quartiles of SD of TC, LDL-C, HDL-C and TG were 4.429 (95% CI: 2.292, 8.560), 2.140 (95% CI: 1.264, 3.621), 1.368 (95% CI: 0.793, 2.359) and 1.421 (95% CI: 0.800, 2.525), respectively. High variability in TC and LDL-C were associated with a higher risk for ischemic stroke. Similarly, the results were consistent when calculating variability of TC and LDL-C using CV, ASV and VIM, and in various subgroup analyses.ConclusionHigher variability of TC and LDL-C associated with the risk of ischemic stroke among hypertensive patients. These findings suggest reducing variability of lipid parameters may decrease adverse outcomes.     

Exploring the causal pathway from omega-6 levels to coronary heart disease: A network Mendelian randomization study

Background and aimsEvidence on the effect of omega-6 fats on coronary heart disease (CHD) risk remains inconclusive. We applied a network MR framework to determine the causal effects between omega-6 levels and CHD and the potential cholesterol metabolic risk factors (Total cholesterol, TC; Low-density lipoprotein cholesterol, LDL-C; High-density lipoprotein cholesterol, HDL-C; Triglycerides, TG) which might act as mediators in the link between omega-6 levels and CHD by integrating summary-level genome wide association study (GWAS) data.Methods and resultsNetwork MR analysis-an approach using genetic variants as the instrumental variables for both the exposure and mediator to infer causality was performed to examine the causal effects between omega-6 levels and CHD and cholesterol metabolic risk factors. Summary statistics from the Kettunen et al. ’s consortium were used (n = 13506) for omega-6, CARDIoGRAMplusC4D consortium data were used (n = 184305) for CHD, and GLGC consortia data were used (n = 108363) for TC, LDL-C, HDL-C, and TG. The IVW method estimate indicated that the odds ratio (OR) (95% confidence interval [CI]) for CHD was 1.210 (1.118–1.310) per standard deviation increase in omega-6. Results were consistent in MR Egger method (OR, 1.418; 95% CI, 1.087–1.851; P = 0.050) and weighted median methods (OR, 1.239; 95% CI, 1.125–1.364; P = 0.000). Omega-6 was positively causal associated with TC, LDL-C, and TG but was not associated with HDL-C. Moreover, TC, LDL-C, and TG were positively associated with CHD.ConclusionsUsing a network MR framework, we provided evidence supporting a positive causal relationship between omega-6 and CHD, which might be partially mediated by TC, LDL-C, and TG.     

冠心病患者血脂异常与冠状动脉病变的相关性分析

目的探讨冠心病患者冠状动脉病变范围及狭窄程度与血脂的关系。方法 9847例疑诊冠心病并行诊断性冠状动脉造影的住院患者中,确诊冠心病6419例(65.2%),排除3428例(34.8%),以冠状动脉造影阳性(主要血管直径狭窄≥50%)作为诊断冠心病的标准。冠状动脉造影病变程度采用Gensini积分评价。术前进行甘油三酯(TG)、总胆固醇(TC)、高密度脂蛋白(HDL-C)、低密度脂蛋白(LDL-C)检查,对比分析冠心病组冠状动脉狭窄程度及范围与血脂的关系。结果对6419例冠心病患者进行统计学分析显示TC、LDL-C随着冠状动脉病变支数及病变程度(冠状动脉病变Gensini积分)的增加而升高,并与之成明显的负相关(P<0.001);而高密度脂蛋白则随着病变支数和病变程度(冠状动脉病变Gensini积分)的增加而降低,呈明显的负相关(P<0.001),进一步多元线性回归分析显示HDL-C(β=-0.075,OR值-5.580,95%CI:-7.541～-3.618,P<0.001)与冠状动脉病变程度成独立正相关,低密度脂蛋白(β=0.067,OR值2.712,95%CI:0.943～4.481,P=0.003)与冠状动脉病变程度成独立正相关,而与TG(β=0.002,OR值0.067,95%CI:-0.689～0.822,P=0.863)、TC(β=0.034,OR值1.080,95%CI:-0.392～2.553,P=0.150)无独立相关性。结论 TG、TC、LDL-C可以作为冠心病的危险因素,而HDL-C与冠状动脉病变程度成独立负相关,LDL-C与冠状动脉病变程度成独立正相关。虽然TG和TC在本研究中未体现出与冠状动脉病变程度存在独立相关性,但因本研究为横断面研究,研究结果存在一定的局限性,应结合临床具体分析。所以积极控制血脂对防止冠心病有积极意义。     

Lipid levels and the risk of hemorrhagic stroke: A dose–response meta-analysis

Background and aimsHemorrhagic stroke (HS) could damage human health and impose heavy social and economic burden around the world. An accumulating number of studies revealed the effect of lipid levels on HS, whereas the results were inconsistent. Therefore, we conducted a dose–response meta-analysis to evaluate the relationship between lipid levels and HS.Methods and resultsWe searched the databases for relative cohort studies, which were published before April 2020. We pooled adjusted effect size and performed the dose–response analysis by random-effect model. 31 eligible studies with 2,291,643 participants and 12,147 hemorrhagic stroke cases were included. An inverse association was observed between the risk of hemorrhagic stroke and total cholesterol (TC) (RR: 0.72; 95% CI: 0.64–0.82) or low-density lipoprotein cholesterol (LDL-C) (RR: 0.69; 95% CI: 0.53–0.89). Additionally, in dose–response analysis, the non-linear trend was also found between TC, high-density lipoprotein cholesterol (HDL-C), and risk of HS. When the level of TC and HDL-C was about 6 and 1.3 mmol/L separately, the risk of HS was decreased to the lowest. And we found a linear trend that for every 1 mmol/L triglyceride (TG) increase, the risk of HS decreased by 7%.ConclusionTC and LDL-C were both inversely related to the risk of HS. In dose–response analysis of TG, we also found the inverse linear trend. Furthermore, the non-linear trend suggested the level of TC and HDL-C was about 6 and 1.3 mmol/L separately could lead to the lowest risk of HS.     

Total cholesterol/HDL cholesterol ratio vs LDL cholesterol/HDL cholesterol ratio as indices of ischemic heart disease risk in men: the Quebec Cardiovascular Study.

BACKGROUND: Total cholesterol (TC)/high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C)/HDL-C ratios are used to predict ischemic heart disease risk. There is, however, no consensus on which of these 2 indices is superior. The objective of the present study was to present evidence that the LDL-C/HDL-C ratio may underestimate ischemic heart disease risk in overweight hyperinsulinemic patients with high triglyceride (TG)-low HDL-C dyslipidemia. METHODS: A total of 2103 middle-aged men in whom measurements of the metabolic profile were performed in the fasting state were recruited from 7 suburbs of the Quebec metropolitan area. RESULTS: The relationship of LDL-C/HDL-C to TC/HDL-C ratios was examined among men in the Quebec Cardiovascular Study classified into tertiles of fasting TG levels. For any given LDL-C/HDL-C ratio, the TC/HDL-C ratio was higher among men in the top TG tertile (>168 mg/dL [>1.9 mmol/L]) than in men in the first and second TG tertiles. Adjustment of the TC/HDL-C ratio for LDL-C/HDL-C by covariance analysis generated significant differences in average TC/HDL-C ratios among TG tertiles (P<.001). Greater differences in features of the insulin resistance syndrome (insulinemia, apolipoprotein B, and LDL size) were noted across tertiles of the TC/HDL-C ratio than tertiles of the LDL-C/HDL-C ratio. CONCLUSION: Variation in the TC/HDL-C ratio may be associated with more substantial alterations in metabolic indices predictive of ischemic heart disease risk and related to the insulin resistance syndrome than variation in the LDL-C/HDL-C ratio.     

血脂与冠心病慢性心力衰竭患者预后的关系

目的研究血脂与冠心病慢性心力衰竭(心衰)患者预后的关系。方法选择冠心病慢性心衰患者381例。按血脂TC、TG、HDL-C、LDL-C四分位间距将各血脂指标分为4组,TC低水平组(94例)、较低水平组(99例)、较高水平组(95例)和高水平组(93例)。TG低水平组(93例)、较低水平组(100例)、较高水平组(95例)和高水平组(93例)。HDL-C低水平组(95例)、较低水平组(99例)、较高水平组(93例)和高水平组(94例)。LDL-C低水平组(94例)、较低水平组(98例)、较高水平组(96例)和高水平组(93例)。采用COX回归分析血脂等因素对生存时间的影响。结果 HDL-C较高水平组、高水平组LVEF是预后的保护因素,年龄是预后的危险因素,而HDL-C较低水平组及TC、TG、LDL-C各水平组均对预后无明显影响(P0.05)。与存活患者比较,死亡患者年龄大,LVEF低,合并陈旧性心肌梗死、心房颤动、贫血和肾功能衰竭的比例高。结论调脂治疗对改善冠心病心衰患者的短期预后作用不明显。     

Relationship between plasma lipids and all-cause mortality in nondemented elderly

OBJECTIVES: To investigate the relationship between plasma lipids and risk of death from all causes in nondemented elderly. DESIGN: Prospective cohort study. SETTING: Community-based sample of Medicare recipients, aged 65 years and older, residing in northern Manhattan. PARTICIPANTS: Two thousand two hundred seventy-seven nondemented elderly, aged 65 to 98; 672 (29.5%) white/non-Hispanic, 699 (30.7%) black/non-Hispanic, 876 (38.5%) Hispanic, and 30 (1.3%) other. MEASUREMENTS: Anthropometric measures: fasting plasma total cholesterol, triglyceride, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and non-HDL-C, body mass index, and apolipoprotein E (APOE) genotype. clinical measures: neuropsychological, neurological, medical, and functional assessments; medical history of diabetes mellitus, heart disease, hypertension, stroke, and treatment with lipid-lowering drugs. Vital status measure: National Death Index date of death. Survival methods were used to examine the relationship between plasma lipids and subsequent mortality in younger and older nondemented elderly, adjusting for potential confounders. RESULTS: Nondemented elderly with levels of total cholesterol, non-HDL-C, and LDL-C in the lowest quartile were approximately twice as likely to die as those in the highest quartile (rate ratio (RR)=1.8, 95% confidence interval (CI)=1.3-2.4). These results did not vary when analyses were adjusted for body mass index, APOE genotype, diabetes mellitus, heart disease, hypertension, stroke, diagnosis of cancer, current smoking status, or demographic variables. The association between lipid levels and risk of death was attenuated when subjects with less than 1 year of follow-up were excluded (RR=1.4, 95% CI=1.0-2.1). The relationship between total cholesterol, non-HDL-C, HDL-C, and triglycerides and risk of death did not differ for older (>or=75) and younger participants (>75), whereas the relationship between LDL-C and risk of death was stronger in younger than older participants (RR=2.4, 95% CI=1.2-4.9 vs RR=1.6, 95% CI=1.02-2.6, respectively). Overall, women had higher mean lipid levels than men and lower mortality risk, but the risk of death was comparable for men and women with comparable low lipid levels. CONCLUSION: Low cholesterol level is a robust predictor of mortality in the nondemented elderly and may be a surrogate of frailty or subclinical disease. More research is needed to understand these associations.     

女性原发性高血压患者绝经前后脂蛋白(a)及血脂水平变化的研究

目的　观察女性原发性高血压患者绝经前后脂蛋白 (a) [L p(a) ]及血脂水平的变化 ,探讨其对女性冠心病发病情况可能存在的影响。方法　女性原发性高血压患者 12 1例 ,测定 L p(a)、总胆固醇 (TC)、三酰甘油 (TG)、低密度脂蛋白胆固醇 (L DL- C)和高密度脂蛋白胆固醇 (HDL- C)。对比绝经前后 L p(a)及血脂水平的变化 ,并与女性健康体检者 (对照组 )进行对比。结果　高血压组 L p(a)、TC、TG、L DL - C均显著高于对照组 ,而 HDL - C及 HDL - C/TC则明显低于对照组 ,在所有原发性高血压患者中 ,绝经后的患者 L p(a)、TC、TG、L DL - C显著高于绝经前患者 ,而 HDL - C/ TC则前者低于后者。结论　绝经后原发性高血压患者 L p(a)、TC、L DL - C均明显高于绝经前患者 ,而HDL- C/ TC则低于绝经前患者 ,提示绝经后女性原发性高血压患者 L p(a)及血脂水平增高与内源性雌激素水平下降有关 ,是绝经后冠心病发病率明显上升的重要原因。     

糖尿病人群中高敏C反应蛋白与新发心脑血管事件关系的前瞻性研究

目的 探讨基线血清高敏C反应蛋白(hsCRP)水平对糖尿病人群新发心脑血管事件的预测价值.方法 本研究采用前瞻性队列研究方法,以参加2006年7月至2007年10月健康查体的101 510名开滦集团职工中空腹血糖≥7.0 mmoL/L或＜7.0 mmol/L但已确诊为糖尿病,正在使用降糖药物的7865例糖尿病者作为观察队列,随访38～53(48.02±3.14)个月,随访期间每半年收集1次新发心脑血管事件情况.分析基线血清hsCRP水平对糖尿病人群新发心脑血管事件的预测价值.结果 (1)随着基线hsCRP水平的增高,发生总心脑血管事件、脑梗死和心肌梗死事件率均逐渐增高,差异有统计学意义(P＜0.01);多变量Cox比例风险回归分析表明校正年龄、性别、收缩压、舒张压、总胆固醇、甘油三酯、低密度脂蛋白胆固醇、高密度脂蛋白胆固醇、体质指数及吸烟因素后,基线hsCRP最高四分位数组(hsCRP≥2.50 mg/L)发生总心脑血管事件、脑梗死和心肌梗死的相对危险(RR)分别为最低四分位数组(hsCRP＜0.41 mg/L)的1.64倍(95% CI:1.20～2.24,P=0.002),1.52倍(95% CI:1.03～2.24,P=0.034)和2.57倍(95% CI:1.34～4.91,P=0.004).(2)随着基线hsCRP水平的增高,研究对象的平均年龄逐渐增高;女性在人群中比例逐渐增多;体质指数、收缩压、舒张压、空腹血糖、甘油三酯、总胆固醇、低密度脂蛋白胆固醇水平增高,差异均有统计学意义(P＜0.05);高密度脂蛋白胆固醇水平降低,差异有统计学意义(P＜0.05).结论 基线hsCRP可预测糖尿病人群发生心脑血管事件,hsCRP水平较高者发生临床心脑血管事件的危险增加,尤其是脑梗死和心肌梗死的危险.

Abstract：

Objective To evaluate the predictive value of baseline serum high sensitivity C-reactive protein for the first cardio-cerebral vascular event in the population with diabetes. Method In this prospective cohort study, a total of 101 510 employees of Kai Luan Group, who received healthy examination from July 2006 to October 2007, were screened and 7865 subjects with fasting plasma glucose ≥ 7. 0 mmol/L or known diabetes mellitus and under insulin or hypoglycemic drugs therapy were followed up for 38 - 53 (48. 02 ± 3. 14) months. Results ( 1 ) Incidence rates of total cardio-cerebral vascular events, cerebral infarction and myocardial infarction increased in proportion to increased levels of baseline hsCRP ( P ＜ 0. 01 ). After adjusting for age, gender, body mass index ( BMI), systolic blood pressure( SBP), diastolic blood pressure (DBP), total cholesterol(TC), triglyceride(TG), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and cigarette smoking, multivariate Cox's proportional hazards regression analysis indicated that the individuals in the highest quartile of hsCRP levels group (hsCRP≥2. 50 mg/L) had an increased risk of total cardio-cerebral vascular events (RR: 1.64, 95% CI:1.20-2.24), cerebral infarction (RR: 1.52, 95% CI: 1.03-2.24), myocardial infarction (RR: 2.57,95% CI: 1.34 -4. 91 ) compared with those in the lowest quartile group( hsCRP ＜ 0. 41 mg/L). (2) Higher baseline hsCRP levels were associated with aging, female gender, higher BMI, SBP, DBP, fasting blood glucose, TC, TG, LDL-C levels and lower HDL-C levels ( all P ＜ 0. 05 ). Conclusion Baseline hsCRP level is associated with increased first cardio-cerebral vascular event in the population with diabetes.     

冠心病患者血清γ-谷氨酰转移酶水平变化及临床意义

目的 研究冠心病患者血清γ-谷氨酰转移酶（GGT）与冠心病严重程度及主要危险因素的关系。方法 对笔者医院888例冠心病患者行冠状动脉造影、超声检查,并检测血清GGT、丙氨酸氨基转移酶（ALT）、天冬氨酸氨基转移酶（AST）、总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白(HDL-C)和低密度脂蛋白(LDL-C)水平。结果 与GGT正常组相比,GGT升高组ALT、AST增加,TG上升,HDL-C下降,LVEF下降,Gensini评分升高。且GGT与ALT、AST、TC、TG、LDL-C和Gensini评分呈正相关,与LVEF和HDL-C呈负相关。结论 冠心病患者血清GGT水平与冠心病严重程度及冠心病的主要危险因素有关。     

Relationship of paraoxonase and serum lipids in Taiwan

Paraoxonase (PON) is structurally associated with the high-density lipoprotein fraction of serum, suggesting a role for this enzyme in lipoprotein metabolism. In Chinese Singaporeans, triglycerides (TG) had significant positive correlation with PON but high-density lipoprotein cholesterol (HDL-C) did not. Our paper investigates the influence of PON on serum lipids under controlling confounding factors in Taiwanese. Blood samples and questionnaires were collected from 476 Taiwanese with no participant excluded for any reason. Cases were examined for biochemistry, PON, TG, cholesterol (TC), low-density lipoprotein cholesterol (LDL-C) and HDL-C. PON phenotypes were determined by Hardy-Weinberg equilibrium. We compared median differences in PON, TG, TC, HDL-C and LDL-C between genders by means of the Wilcoxon Rank Sums test. Relationships among PON, TG, TC, HDL-C and LDL-C were represented by Pearson's correlation. A rank multiple regression analysis was also used to analyze the association between PON, TG, TC, HDL-C and LDL-C adjusted for age, gender and diabetes mellitus, since no uremia, acute myocardial infarction or peripheral neuropathy was present in our cases. Median TG and LDL-C were higher in males than in females, but median HDL-C was higher in females. For women and the total group, TC and HDL-C showed a significant positive correlation with PON. Only HDL-C showed a positive correlation with PON adjusted for age, gender and diabetes mellitus. PON is influenced by many confounding factors. Only after adjusting for the confounding factors in this study, HDL-C is positively correlated to PON like the structural relationship.     

Triglyceride predicts cardiovascular mortality and its relationship with glycaemia and obesity in Chinese type 2 diabetic patients

BACKGROUND: To examine the lipid profile in Chinese type 2 diabetic patients and their relationship with anthropometric parameters, glycaemic control and cardiovascular mortality. METHODS: A consecutive cohort of 562 newly referred patients with type 2 diabetes to a hospital-based diabetes centre were examined in 1996. Subjects treated with lipid lowering drugs at the time of referral were excluded. A total of 517 subjects were followed up over a mean (+/-SD) period of 4.6 +/- 0.9 years. Glycated haemoglobin (HbA1c), fasting insulin and lipid profile and anthropometric parameters were documented at the time of recruitment. Cardiovascular mortality, mainly due to coronary heart disease and stroke, was ascertained using death registry and review of hospital case notes in 2001. RESULT: Of the 517 subjects (mean age of 54.0 +/- 14.0 years), 42.6% were men. In this cohort, 63.3% of subjects were either overweight (BMI > or = 23 kg/m2) or obese (BMI > or = 25 kg/m2) using Asian criteria. The mean (+/-SD) total cholesterol (TC), LDL-Cholesterol (LDL-C), HDL-Cholesterol (HDL-C) and geometric mean (x// antilog SD) of triglycerides (TG) were 5.6 +/- 1.3 mmol/L, 3.6 +/- 1.1 mmol/L, 1.3 +/- 0.3 mmol/L and 1.46x//1.90 mmol/L respectively. TC and LDL-C correlated positively with HbA1c, HDL-C negatively with BMI and WC (waist circumference), while TG positively with HbA1c, BMI, WC and HOMA (insulin resistance estimated using the homeostasis model assessment). During the 4.6 years follow-up period, there were 61 deaths giving a total mortality rate of 11.4%, of which 15 (25%) were because of cardiovascular events. Apart from age and disease duration, logarithm of TG was significantly associated with increased risk of cardiovascular mortality (p = 0.049, relative risk = 2.97, 95% CI 1.00-8.77). CONCLUSIONS: Chinese type 2 diabetic patients had a lower prevalence of obesity, lower TG and higher HDL-C than Caucasian patients. Despite the low incidence of cardiovascular death, TG, which was closely associated with obesity indexes, was significantly associated with cardiovascular death in these patients.     

Sintomas Depressivos estão Associados a Níveis Séricos Elevados de Colesterol de Lipoproteína de Baixa Densidade em Idosos com Diabetes Mellitus Tipo 2

Background Type 2 Diabetes Mellitus (T2DM) is common in older adults, who also present a high level of risk factors for cardiovascular disease (CVD), such as dyslipidemia. However, the role of depression in T2DM patients and its relationship with CVD risk factors are understudied.Objective The present study aimed to investigate the relationship between depressive symptoms (DS) and known cardiovascular risk factors in community dwelling older adults with T2DM.Methods This is a cross sectional study, in which 85 community-dwelling older adults with T2DM were assessed. DS was assessed using the Yesavage Geriatric Depression Scale - short version (GDS-15). The following cardiovascular risk factors were evaluated: systolic (SBP) and diastolic blood pressure (DBP), fasting plasma glucose (FPG), lipid profile (serum triglycerides - TG, serum total cholesterol - TC, serum low-density lipoprotein cholesterol - LDL-C, and serum high-density lipoprotein cholesterol - HDL-C) and body mass index (BMI). Poisson multiple regression was performed to test the association between DS and each cardiovascular risk factor adjusted by sex, age, time spent in moderate physical activity, and functional status. The significance level adopted for the analysis was 5%.Results Among all the analyzed risk factors, only high levels of LDL-C were related to high DS (PR=1.005, CI 95% 1.002-1.008). A significant association was observed between HDL-C levels (PR=0.99, CI 95% 0.98-0.99) and SBP (PR=1.009, CI 95% 1.004-1.014).Conclusion In older adults with T2DM, the presence of DS was associated with LDL-C, HDL-C levels and SBP, even after adjusting for sex, age, physical activity level and functional capacity. (Arq Bras Cardiol. 2020; 115(3):462-467)     

Suboptimal lipid levels in clinical practice among Portuguese adults with dyslipidemia under lipid-lowering therapy: Data from the DISGEN-LIPID study

IntroductionCardiovascular disease (CVD) is the leading cause of morbidity and mortality in Portugal. Hypercholesterolemia has a causal role in atherosclerotic CVD. Guidelines recommend that cardiovascular (CV) risk reduction should be individualized and treatment goals identified. Low-density lipoprotein cholesterol (LDL-C) is the primary treatment target.MethodsDISGEN-LIPID was a cross-sectional observational study conducted in 24 centers in Portugal in dyslipidemic patients aged ≥40 years, on lipid-lowering therapy (LLT) for at least three months and with an available lipid profile in the previous six months.ResultsA total of 368 patients were analyzed: 48.9% men and 51.1% women (93.9% postmenopausal), of whom 73% had a SCORE of high or very high CV risk. One quarter had a family history of premature CVD; 31% had diabetes; 26% coronary heart disease; 9.5% cerebrovascular disease; and 4.1% peripheral arterial disease. Mean baseline lipid values were total cholesterol (TC) 189 mg/dl, LDL-C 116 mg/dl, high-density lipoprotein cholesterol (HDL-C) 53.5 mg/dl, and triglycerides (TG) 135 mg/dl. Women had higher TC (p<0.001), LDL-C (non-significant) and HDL-C (p<0.001), and lower TG (p=0.002); 57% of men and 63% of women had LDL-C>100 mg/dl (p=0.28), and 58% of men and 47% of women had LDL-C>70 mg/dl (p=0.933).ConclusionThese observational data show that, despite their high-risk profile, more than half of patients under LLT, both men and women, did not achieve the recommended target levels for LDL-C, and a large proportion also had abnormal HDL-C and/or TG. This is a renewed opportunity to improve clinical practice in CV prevention.