scholarly journals Prevalence of dyslipidemia and gene polymorphisms of ABCB1 and SLCO1B1 in Han, Uygur, Kazak, Hui, Tatar, Kirgiz, and Sibe populations with coronary heart disease in Xinjiang, China

2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Tingting Wang ◽  
Li Sun ◽  
Li Xu ◽  
Ting Zhao ◽  
Jie Feng ◽  
...  

Abstract Background Dyslipidemia is a predisposing factor for coronary heart disease (CHD). High-intensity statin therapy is recommended as secondary prevention. ABCB1 and SLCO1B1 genes influence the efficacy and safety of statins. Xinjiang is a multi-ethnic area; however, little is known about the prevalence of dyslipidemia and gene polymorphisms of ABCB1 and SLCO1B1 in minority groups with CHD. Objective To measure levels of lipid and apolipoprotein and the prevalence of dyslipidemia and gene polymorphisms of ABCB1, SLCO1B1 in Han, Uygur, Kazak, Hui, Tatar, Kirgiz, and Sibe populations with CHD in Xinjiang. Methods This descriptive retrospective study compares lipid levels in ethnic groups using Kruskal-Wallis test or analysis of variance. The study compared gene polymorphisms and the prevalence of dyslipidemia among different ethnic groups using the chi-square test. The lipid profiles in plasma were measured before lipid-lowering therapy using commercially available kits. Genotyping of SLCO1B1 and ABCB1 variants was performed using sequencing by hybridization. Results A total of 2218 patients were successfully screened, including 1044 Han, 828 Uygur, 113 Kazak, 138 Hui, 39 Tatar, 36 Kirgiz, and 20 Sibe patients. The overall mean age was 61.8 ± 10.8 years, and 72.5% of participants were male. Dyslipidemia prevalence in these ethnic groups was 42.1, 49.8, 52.2, 40.6, 48.7, 41.7, and 45.0%, respectively. The prevalence of dyslipidemia, high total cholesterol (TC), high triglycerides (TG), and high low density lipoprotein cholesterol (LDL-C) differed significantly among the groups (P = 0.024; P < 0.001; P < 0.001; P < 0.001, respectively). For the Han group, high LDL-C, high TC, and high TG prevalence differed significantly by gender (P = 0.001, P = 0.022, P = 0.037, respectively). The prevalence of high TC, high TG, and low high density lipoprotein cholesterol (HDL-C) differed significantly by gender in the Uygur group (P = 0.006, P = 0.004, P < 0.001, respectively). The prevalence of high TC in Hui patients significantly differed by gender (P = 0.043). These findings suggest that polymorphisms in ABCB1 and C3435T differ significantly across ethnicities (P < 0.001). Conclusions The prevalences of dyslipidemia, high TC, high TG, and high LDL-C in Han, Uygur, Kazak, Hui, Tatar, Kirgiz, and Sibe CHD patients in Xinjiang differed concerning ethnicity. Ethnic, gender, and lifestyle were the key factors that affected the lipid levels of the population. The prevalence of polymorphisms of ABCB1 and C3435T significantly differed across ethnicities. These findings will aid the selection of precision lipid-lowering medications and prevention and treatment of CHD according to ethnicity in Xinjiang.

2018 ◽  
Vol 38 (1) ◽  
Author(s):  
Qing-Hui Zhang ◽  
Rui-Xing Yin ◽  
Wu-Xian Chen ◽  
Xiao-Li Cao ◽  
Yu-Ming Chen

Little is known about the association of the TIMD4 (T-cell immunoglobulin and mucin domain 4 gene)-HAVCR1 (hepatitis A virus cellular receptor 1) variants and lipid metabolism, the risk of coronary heart disease (CHD) and ischemic stroke (IS). The present study aimed to determine the TIMD4-HAVCR1 variants, their haplotypes and gene–environment interactions on serum lipid levels, the risk of CHD and IS, and the lipid-lowering efficacy of atorvastatin in a southern Chinese Han population. Genotypes of three variants in 622 controls, 579 CHD, and 546 IS patients were determined by the Snapshot technology. Atorvastatin calcium tablet (20 mg/day) was given in 724 hyperlipidemic patients for 8 weeks after genotyping. The rs12522248 genotypic and allelic frequencies were different between controls and patients, and were associated with the risk of CHD and IS. The rs1501908G-rs12522248T-rs2036402T haplotype was associated with an increased risk of CHD; the G-C-T haplotype was associated with lower risk of CHD; and the C-C-C haplotype was associated with an increased risk of IS. Variants and their haplotypes in controls were associated with triglyceride (rs1501908), low-density lipoprotein cholesterol (LDL-C, rs1501908, G-T-T), high-density lipoprotein cholesterol (HDL-C, rs12522248, C-C-C) and the ratio of total cholesterol (TC) to HDL-C (C-C-C). Interactions of rs1501908- and rs2036402-alcohol (HDL-C); rs1501908- and rs12522248-high body mass index (hBMI, ≥24 kg/m2; TC); and TIMD4-HAVCR1 variants-atorvastatin on several lipid parameters were detected. Interactions of rs12522248TC/CC-hBMI, G-T-T-, and C-C-C-smoking on the risk of CHD; and C-C-C-smoking, C-C-C-, and G-C-T-hBMI on the risk of IS were also observed. These findings suggest that the TIMD4-HAVCR1 variants may be the genetic risk factors for CHD and IS.


2008 ◽  
Vol 9 (10) ◽  
pp. 1475-1486 ◽  
Author(s):  
Tuomo Nieminen ◽  
Mika Kähönen ◽  
Leena E Viiri ◽  
Paula Grönroos ◽  
Terho Lehtimäki

2005 ◽  
Vol 39 (2) ◽  
pp. 329-334 ◽  
Author(s):  
Stacy A Lauderdale ◽  
Amy Heck Sheehan

OBJECTIVE: To describe current data evaluating the use of intensive lipid-lowering therapy in patients with coronary heart disease. DATA SOURCES: A literature search using MEDLINE (1966–September 2004) was conducted using the search terms lipoproteins, low-density lipoprotein cholesterol (LDL-C), hydroxymethylglutaryl-coenzyme A reductase inhibitors, coronary arteriosclerosis, and coronary disease to identify published trials comparing the effects of intensive and conventional lipid-lowering therapy. DATA SYNTHESIS: Intensive lipid-lowering therapy reduces LDL-C levels significantly more than conventional treatment and appears to reduce cardiovascular morbidity and mortality in patients who have recently experienced acute coronary syndrome (ACS). However, evidence suggesting clinical benefits in patients with stable coronary heart disease is currently lacking. CONCLUSIONS: Although data are limited, patients with ACS may benefit from intensive lipid-lowering therapy. Several studies are underway to determine the appropriate role of intensive lipid-lowering therapy.


2021 ◽  
Vol 10 (4) ◽  
pp. 886
Author(s):  
Pier Luigi Temporelli ◽  
Marcello Arca ◽  
Laura D’Erasmo ◽  
Raffaele De Caterina

Hyperlipidemia is a powerful risk factor for coronary heart disease (CHD). It has been known for a long time that lipid-lowering drugs significantly reduce morbidity from CHD, thus proving a causal role for cholesterol in coronary events. Conversely, the relationship between low-density lipoprotein cholesterol (LDL-C) levels and stroke has been less clear and debated for many years. Recent data conclusively demonstrate not only the inverse epidemiological relationship of blood LDL-C with stroke, but also the efficacy of different strategies to attain cholesterol-lowering on stroke. They also dissipate lingering doubts about the possibility that lipid-lowering is linked to an increase in hemorrhagic stroke. However, despite current international lipid guidelines now strongly recommend aggressive lipid-lowering therapy in patients with atherosclerotic cardiovascular disease, including CHD and cerebrovascular disease (CeVD), secondary prevention patients are often undertreated with lipid-lowering therapies in routine clinical practice. This review highlights that patients with CHD and concomitant CeVD do not receive aggressive lipid-lowering therapy despite being at very high risk and with clear evidence of benefit from lowering LDL-C levels below current targets.


2018 ◽  
Vol 25 (18) ◽  
pp. 1950-1963 ◽  
Author(s):  
Kian-Keong Poh ◽  
Baishali Ambegaonkar ◽  
Carl A Baxter ◽  
Philippe Brudi ◽  
Wacin Buddhari ◽  
...  

Background As mortality due to cardiovascular disease increases throughout the world, accurate data on risk factors such as hyperlipidemia are required. This is lacking in the Asia-Pacific region. Design The observational Dyslipidemia International Study (DYSIS) II was established to quantify the extent of hyperlipidemia in adults with acute and stable coronary heart disease globally. Methods Patients with stable coronary heart disease or hospitalised with an acute coronary syndrome were enrolled across nine Asia-Pacific countries from July 2013 to October 2014. Lipid-lowering therapy and low-density lipoprotein cholesterol target attainment (<70 mg/dL) were assessed. The acute coronary syndrome cohort was followed up 4 months post-discharge. Results Of the 4592 patients enrolled, 2794 had stable coronary heart disease and 1798 were admitted with an acute coronary syndrome. In the coronary heart disease cohort, the mean low-density lipoprotein cholesterol level was 86.9 mg/dL, with 91.7% using lipid-lowering therapy and 31% achieving low-density lipoprotein cholesterol of less than 70 mg/dL. In the acute coronary syndrome cohort at admission, the corresponding values were 103.2 mg/dL, 63.4% and 23.0%, respectively. Target attainment was significantly higher in lipid-lowering therapy-treated than non-treated patients in each cohort (32.6% vs. 12.9% and 31.1% vs. 9.0%, respectively). Mean atorvastatin-equivalent dosages were low (20 ± 15 and 22 ± 18 mg/day, respectively), with little use of non-statin adjuvants (13.0% and 6.8%, respectively). Low-density lipoprotein cholesterol target attainment had improved by follow-up for the acute coronary syndrome patients, but remained low (41.7%). Conclusions Many patients in Asia at very high risk of recurrent cardiovascular events had a low-density lipoprotein cholesterol level above the recommended target. Although lipid-lowering therapy was common, it was not used to its full potential.


Author(s):  
Karl J. Krobot ◽  
Donald D. Yin ◽  
Evo Alemao ◽  
Elisabeth Steinhagen-Thiessen

Background Determinants of the real-world effectiveness of lipid-lowering therapy have been rarely assessed in an unselected observational coronary heart disease (CHD) community cohort over time. Design Randomly drawn patients (n = 605) from randomly drawn practices (n = 62) were retrospectively followed for a median of 3.6 years (1998-2002) on lipid-lowering therapy (98% statins). Methods Coronary heart disease population-averaged estimates and variances accounting for repeated measurements within patients were obtained using generalized estimating equations. Results Post-treatment low-density lipoprotein-cholesterol (LDL-C) was 124 mg/dl in men and 141 mg/dl in women and was independently associated (all P<0.05) with pre-treatment LDL-C (+ 3.7 mg/dl per 10 mg/dl increment), female sex (+ 14.0 mg/dl), coronary bypass (-9.5 mg/dl), drug-treated diabetes mellitus (-6.8 mg/dl), and era 2002/2001 versus 1999/2000 (- 6.4 mg/dl) in age-adjusted multivariate analyses. Holding pre-treatment LDL-C constant post-treatment LDL-C was associated with pre-treatment Framingham CHD risk in men (- 13.9 mg/dl per doubling of risk), whereas LDL-C control in women resembled that in low-risk men. The likelihood of attaining LDL-C < 100 mg/dl was 0.28 in men and 0.17 in women and was likewise associated with the above factors. Conclusion Low-density lipoprotein-cholesterol control remained low despite lipid-lowering therapy across a wide range of pre-treatment LDL-C and pre-treatment CHD risk. Low-density lipoprotein-cholesterol control in women was inferior to that in men, a finding that warrants attention and clarification. Eur J Cardiovasc Prev Rehabil 12:37-45 © 2005 The European Society of Cardiology


2018 ◽  
Vol 25 (18) ◽  
pp. 1966-1976 ◽  
Author(s):  
Jean Ferrieres ◽  
Gaetano Maria De Ferrari ◽  
Michel P. Hermans ◽  
Moses Elisaf ◽  
Peter P. Toth ◽  
...  

Background Patients with coronary heart disease (CHD) and survivors of acute coronary syndrome (ACS) are at very high risk for adverse cardiovascular events. Lowering low-density lipoprotein cholesterol (LDL-C) can reduce the risk, with effective lipid-lowering therapy (LLT) readily available; however, dyslipidemia remains prevalent throughout Europe. Design The observational Dyslipidemia International Study II (DYSIS II) aimed to identify unmet treatment needs in adult ACS and CHD patients. Data for the seven participating European countries are presented herein. Methods The study was carried out from December 2012 to November 2014. Use of LLT and attainment of European-guideline-recommended LDL-C targets were assessed. For ACS patients, changes in lipid levels and LLT were evaluated 4 months post-hospitalization. Results Of the 4344 patients enrolled, 2946 were attending a physician visit for the assessment of stable CHD, while 1398 had been hospitalized for an ACS event. In both patient sets, mean LDL-C levels were high (89.5 and 112.5 mg/dl, respectively) and <70 mg/dl target attainment extremely poor. The mean daily statin dosage (normalized to atorvastatin potency) was 27 ± 20 mg for CHD and 22 ± 17 mg for ACS patients. Treatment was intensified slightly for ACS subjects after hospitalization, with the dosage reaching 35 ± 24 mg/day. LDL-C target attainment was higher by the end of the 4-month follow up (30.9% and 41.5% for patients on LLT and without LLT at baseline, respectively; p < 0.05). Conclusion Elevated blood cholesterol levels are highly prevalent across Europe, with low numbers of coronary patients reaching their recommended LDL-C target. While use of LLT is widespread, there is significant scope for intensifying treatment.


2018 ◽  
Vol 21 (01) ◽  
pp. 084-093
Author(s):  
Munir Ahmed

… Objectives: This study was conducted to determine serum lipid profile in childrenof premature coronary heart disease patients and compare results between children havingparents with one, two or three risk factors. Study Design: A cross sectional comparative study.Patients and Methods: Ninety seven (97) subjects having parents with one risk factor, sixty three(63) subjects having parents with two risk factors and sixty five (65) subjects having parents withthree risk factors were selected from Punjab Institute of Cardiology Lahore. Fifty (50) age and sexmatched subjects of parents without a history of coronary heart disease were also selected. Theserum total cholesterol, serum triglycerides, serum low density lipoprotein cholesterol andserum high density lipoprotein cholesterol was performed and results were compared. Results:Offsprings of parents having more number of risk factors had statistically significantly high totalcholesterol and low density lipoprotein cholesterol as compared with offsprings of parentshaving one risk factor. Triglycerides and high density lipoprotein cholesterol of offsprings ofparents having one, two, three or more than three risk factors were comparable. Offsprings ofparents having premature coronary heart disease (CHD) had abnormal lipid levels as comparedwith control group. Conclusions: Coronary heart disease risk factors are significant regardingabnormal lipid levels. Offsprings of premature CHD patients are prone to develop CHD ascompared to normal control group. Genetic predisposition seems to be important indevelopment of CHD.


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