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Associations of tea consumption with blood pressure progression and hypertension incidence

Journal of Geriatric Cardiology 2021年第8期18卷 645-653页

作者： Xiao-Ge NIU Can CAI Fang-Chao LIU Jian-Xin LI Ke-Yong HUANG Xue-Li YANG Jie CAO Shu-feng CHEN Hong-Fan LI Chong SHEN Ying-Xin ZHAO dong-Sheng HU Shu-Jun gu Jian-feng HUANG Xiang-feng LU dong-feng gu Department of Epidemiology State Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Tianjin Key Laboratory of Environment Nutrition and Public HealthDepartment of Occupational and Environmental HealthSchool of Public HealthTianjin Medical UniversityTianjinChina Department of Epidemiology and Biostatistics School of Public HealthNanjing Medical UniversityNanjingChina Cardio-Cerebrovascular Control and Research Center Institute of Basic MedicineShandong First Medical University(Shandong Academy of Medical Sciences)JinanChina Department of Epidemiology and Health Statistics College of Public HealthZhengzhou UniversityHenanChina Department of Biostatistics and Epidemiology School of Public HealthShenzhen University Health Science CentreShenzhenChina Changshu Center for Disease Control and Prevention JiangsuChina School of Medicine Southern University of Science and TechnologyShenzhenChina

BACKGROUND Association between tea consumption and incident hypertension remains *** study conducted to examine the health effects of tea consumption on blood pressure progression and hypertension *** A population-based cohort of 38,913 Chinese participants without hypertension at baseline were included in the current *** on tea consumption was collected through standardized *** of tea consump-tion with blood pressure progression and incident hypertension were analyzed using logistic regression models and Cox propor-tional hazards regression models,*** During a median follow-up of 5.9 years,17,657 individuals had experienced progression to a higher blood pressure stage and 5,935 individuals had developed *** multivariate analyses,habitual tea drinkers(≥3 times/week for at least six months)had a 17%lower risk for blood pressure progression[odds ratio(OR)=0.83,95%CI:0.79-0.88]and a 14%de-creased risk for incident hypertension[hazard ratio(HR)=0.86,95%CI:0.80-0.91]compared with non-habitual tea ***-dividuals in different baseline blood pressure groups could obtain similar benefit from habitual tea *** terms of tea con-sumption amount,an inverse,linear dose-response relation between monthly consumption of tea leaves and risk of blood pres-sure progression was observed,while the risk of incident hypertension did not reduce further after consuming around 100 g of tea leaves per *** Our study demonstrated that habitual tea consumption could provide preventive effect against blood pres-sure progression and hypertension incidence.

关键词： hypertension progression consuming

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Multimorbidity and mortality among older patients with coronary heart disease in Shenzhen,China

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Journal of Geriatric Cardiology 2024年第1期21卷 81-89页

作者： Fu-Rong LI Shuang WANG Xia LI Zhi-Yuan CHENG Cheng JIN Chun-Bao MO Jing ZHENG feng-Chao LIANG dong-feng gu Shenzhen Key Laboratory of Cardiovascular Health and Precision Medicine Southern University of Science and TechnologyShenzhenGuangdongChina School of Public Health and Emergency Management Southern University of Science and TechnologyShenzhenGuangdongChina Shenzhen Health Development Research and Data Management Center ShenzhenChina School of Medicine Southern University of Science and TechnologyShenzhenGuangdongChina

BACKGROUND The current understanding of the magnitude and consequences of multimorbidity in Chinese older adults with coronary heart disease(CHD)is *** aimed to assess the association and population-attributable fractions(PAFs)between multimorbidity and mortality among hospitalized older patients who were diagnosed with CHD in Shenzhen,*** We conducted a retrospective cohort study of older Chinese patients(aged≥65 years)who were diagnosed with *** proportional hazards models were used to estimate the associations between multimorbidity and all-cause and cardiovascular disease(CVD)*** also calculated the *** The study comprised 76,455 older hospitalized patients who were diagnosed with CHD between January 1,2016,and August 31,*** them,70,217(91.9%)had multimorbidity,defined as the presence of at least one of the predefined 14 chronic *** with cancer,hemorrhagic stroke and chronic liver disease had the worst overall death risk,with adjusted HRs(95%CIs)of 4.05(3.77,4.38),2.22(1.94,2.53),and 1.85(1.63,2.11),*** CVD mortality,the highest risk was observed for hemorrhagic stroke,ischemic stroke,and chronic kidney disease;the corresponding adjusted HRs(95%CIs)were 3.24(2.77,3.79),1.91(1.79,2.04),and 1.81(1.64,1.99),***-cause mortality was mostly attributable to cancer,heart failure and ischemic stroke,with PAFs of 11.8,10.2,and 9.1,*** for CVD mortality,the leading PAFs were heart failure,ischemic stroke and diabetes;the corresponding PAFs were 18.0,15.7,and 6.1,*** Multimorbidity was common and had a significant impact on mortality among older patients with CHD in Shenzhen,***,heart failure,ischemic stroke and diabetes are the primary contributors to ***,prioritizing improved treatment and management of these comorbidities is essential for the survival prognosis of CHD patients from a holistic public health perspective.

关键词： patients morbidity mortality

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Life's essential 8 and risk of subclinical atherosclerosis progression: a prospective cohort study

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Journal of Geriatric Cardiology 2024年第7期21卷 751-759页

作者： Shi-Yu ZHOU Fang-Chao LIU Shu-feng CHEN Jian-Xin LI Jie CAO Ke-Yong HUANG Zheng-Hao TANG feng-Chao LIANG dong-Sheng HU Lian-Cheng ZHAO Ying LI Jian-feng HUANG Xiang-feng LU Bin LU dong-feng gu Department of Epidemiology&Key Laboratory of Cardiovascular Epidemiology State Key Laboratory of Cardiovas-cular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijingChina School of Public Health and Emergency Management School of Medi-cineSouthern University of Science and TechnologyShenzhenChina Department of Epidemiology and Health Stat-istics School of Public HealthZhengzhou UniversityZhengzhouChina Department of Biostatistics and Epidemi-ology School of Public HealthShenzhen University Health Science CenterShenzhenChina Department of Radi-ology State Key Laboratory of Cardiovascular DiseaseFuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences&Peking Union Medical CollegeBeijingChina

BACKGROUND Previous studies have demonstrated the benefits of ideal cardiovascular health(CVH) in reducing cardiovascular ***,its role in subclinical atherosclerosis(SA) progression remains *** aim to examine the association of CVH,estimated by the American Heart Association's new Life's Essential 8(LE8),with the progression of *** This prospective cohort study was conducted among 972 asymptomatic Chinese participants and followed up for5.7 *** LE8 score(range,0–100) consisted of blood pressure,lipids,glucose,body mass index,smoking status,diet health,physical activity and sleep health was evaluated in 1998 and 2008–*** of SA was determined by carotid plaque and coronary artery calcification(CAC) in 2008–2009 and 2013–***-binomial regression model was used to estimate the association of LE8 score with SA *** Each 10 points increment in LE8 score was associated with 15.2%(RR:0.848,95% CI:0.797–0.902),17.7%(RR:0.823,95% CI:0.766–0.884) and 12.0%(RR:0.880,95% CI:0.845–0.916) lower risks of carotid plaque,CAC and overall SA progression,*** with participants with non-ideal CVH at both visits,the participants with ideal CVH at both visits had39.1%(RR:0.609,95% CI:0.494–0.752),41.0%(RR:0.590,95% CI:0.456–0.764) and 29.7%(RR:0.703,95% CI:0.598–0.825) lower risks of carotid plaque,CAC and overall SA progression,*** Higher LE8 scores were associated with lower risks of SA ***,long-term maintenance of optimal CVH was more beneficial to prevent SA progression.

关键词： atherosclerosis prospective cardiovascular

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Lifestyle improvement and the reduced risk of cardiovascular disease:the China-PAR project

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Journal of Geriatric Cardiology 2023年第11期20卷 779-787页

作者： Ying-Ying JIANG Fang-Chao LIU Chong SHEN Jian-Xin LI Ke-Yong HUANG Xue-Li YANG Ji-Chun CHEN Xiao-Qing LIU Jie CAO Shu-feng CHEN Ling YU Ying-Xin ZHAO Xian-Ping WU Lian-Cheng ZHAO Ying LI dong-Sheng HU Jian-feng HUANG Xiang-feng LU dong-feng gu Department of Epidemiology Center for Global HealthSchool of Public HealthNanjing Medical UniversityNanjingChina Department of Epidemiology Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Key Laboratory of Cardiovascular Epidemiology Chinese Academy of Medical SciencesBeijingChina Research Units of Cohort Study on Cardiovascular Diseases and Cancers Chinese Academy of Medical SciencesBeijingChina Tianjin Key Laboratory of Environment Nutrition and Public HealthDepartment of Occupational and Environmental HealthSchool of Public HealthTianjin Medical UniversityTianjinChina Division of Epidemiology Guangdong Provincial People's Hospital and Cardiovascular InstituteGuangzhouChina Department of Cardiology Fujian Provincial HospitalFuzhouChina Cardio-Cerebrovascular Control and Research Center Institute of Basic MedicineShandong Academy of Medical SciencesJinanChina Sichuan Center for Disease Control and Prevention ChengduChina Department of Epidemiology and Health Statistics College of Public HealthZhengzhou UniversityZhengzhouChina Department of Epidemiology and Health Statistics School of Public HealthShenzhen University Health Science CenterShenzhenChina School of Medicine Southern University of Science and TechnologyShenzhenChina

BACKGROUND The benefits of healthy lifestyles are well recognized. However, the extent to which improving unhealthy lifestyles reduces cardiovascular disease(CVD) risk needs to be discussed. We evaluated the impact of lifestyle improvement on CVD incidence using data from the China-PAR project(Prediction for Atherosclerotic Cardiovascular Disease Risk in China).METHODS A total of 12,588 participants free of CVD were followed up for three visits after the baseline examination. Changes in four lifestyle factors(LFs)(smoking, diet, physical activity, and alcohol consumption) were assessed through questionnaires from the baseline to the first follow-up visit. Cox proportional hazard models were used to estimate hazard ratios(HRs) and corresponding 95% confidence intervals(CIs). The risk advancement periods(RAPs: the age difference between exposed and unexposed participants reaching the same incident CVD risk) and population-attributable risk percentage(PAR%) were also *** A total of 909 incident CVD cases occurred over a median follow-up of 11.14 years. Compared with maintaining 0-1healthy LFs, maintaining 3–4 healthy LFs was associated with a 40% risk reduction of incident CVD(HR = 0.60, 95% CI: 0.45–0.79)and delayed CVD risk by 6.31 years(RAP:-6.31 [-9.92,-2.70] years). The PAR% of maintaining 3–4 unhealthy LFs was 22.0%compared to maintaining 0-1 unhealthy LFs. Besides, compared with maintaining two healthy LFs, improving healthy LFs from 2to 3–4 was associated with a 23% lower risk of CVD(HR = 0.77, 95% CI: 0.60–0.98).CONCLUSIONS Long-term sustenance of healthy lifestyles or improving unhealthy lifestyles can reduce and delay CVD risk.

关键词： hazard maintaining alcohol

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Effects of the total physical activity and its changes on incidence, progression, and remission of hypertension

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Journal of Geriatric Cardiology 2021年第3期18卷 175-184页

作者： Can CAI Fang-Chao LIU Jian-Xin LI Ke-Yong HUANG Xue-Li YANG Ji-Chun CHEN Xiao-Qing LIU Jie CAO Shu-feng CHEN Chong SHEN Ling YU Fang-Hong LU Xian-Ping WU Lian-Cheng ZHAO Ying LI dong-Sheng HU Jian-feng HUANG Xiao-Yang ZHOU Xiang-feng LU dong-feng gu Department of Cardiology Renmin Hospital of Wuhan UniversityWuhan 430060China Key Laboratory of Cardiovascular Epidemiology&Department of Epidemiology Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100037China Tianjin Key Laboratory of Environment Nutrition and Public HealthDepartment of Occupational and Environmental HealthSchool of Public HealthTianjin Medical UniversityTianjin 300070China Division of Epidemiology Guangdong Provincial People’s Hospital and Cardiovascular InstituteGuangzhou 510080China Department of Epidemiology and Biostatistics School of Public HealthNanjing Medical UniversityNanjing 211166China Department of Cardiology Fujian Provincial HospitalFuzhou 350014China Cardio-Cerebrovascular Control and Research Center Institute of Basic MedicineShandong Academy of Medical SciencesJinan 250062China Sichuan Center for Disease Control and Prevention Chengdu 610041China Department of Epidemiology and Health Statistics School of Public HealthShenzhen University Health Science CenterShenzhen 518060China

OBJECTIVES Moderate to vigorous physical activity is recommended to prevent hypertension according to the current ***,the degree to which the total physical activity(TPA)and its changes benefit normotensives and hypertensives is *** aimed to examine the effects of TPA and its changes on the incidence,progression,and remission of hypertension in the large-scale prospective *** A total of 73,077 participants(55,101 normotensives and 17,976 hypertensives)were eligible for TPA *** a mean follow-up of 7.16 years(394,038 person-years),12,211 hypertension cases were *** was estimated as metabolic equivalents and categorized into *** proportional hazards regression and multivariable logistic regression were used to estimate associations of TPA and changes in TPA with incident hypertension and progression/remission of *** Compared with the lowest quartile of TPA,normotensives at the third and the highest quartile had a decreased risk of incident hypertension,with hazard ratios(HRs)of 0.86[95%confidence interval(CI):0.81−0.91]and 0.81(95%CI:0.77−0.86),*** at the highest quartile of TPA demonstrated a decreased risk of progression of hypertension[odds ratio(OR)=0.87,95%CI:0.79−0.95],and an increased probability of hypertension remission(OR=1.17,95%CI:1.05−1.29).Moreover,getting active from a sedentary lifestyle during the follow-up period could reduce 25%(HR=0.75,95%CI:0.58−0.96)risk of incident hypertension,whereas those becoming sedentary did not achieve benefit from initially being *** Our findings indicated that increasing and maintaining TPA levels could benefit normotensives,whereas higher TPA levels were needed to effectively control progression and improve remission of *** activity played undoubtedly an essential role in both primary and secondary prevention of hypertension.

关键词： hypertension remission prevention

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Common SNPs of APM1 Gene Are Not Associated With Hypertension or Obesity in Chinese Population

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Biomedical and Environmental Sciences 2006年第3期19卷 179-184页

作者： WEI-LI YAN SHU-feng CHEN JIAN-feng HUANG YAN SHENA BO-QIN QIANG dong-HAI LIU dong-feng gu Division of Population Genetics and Prevention Cardiovascular Institute and Fuwai Hospital Chinese Academy of Medical Sciences and Peking Union Medical College 167 Beilishi Road Beijing 100037 China National Human Genome Center North Yongchang Rd 3-707 Beijing 100176 China

Objective To investigate whether the common variants 45T/G and 276G/T in APM1 gene were associated with hypertension combined with obesity （HO） and related clinical features in Chinese Han population. Methods A case-control study design was applied. Common polymorphisms of 45T/G and 276G/T were genotyped by PCR product sequencing in 484 cases with HO and 502 controls with normal blood presure and BMI 〈 25. Results The genotype and allele frequencies of 45T/G, 276G/T, and haplotype defined by the two variants in cases did not differ from those in controls. The means of blood pressure, BMI and waist-hip ratio did not differ among genotypes of the two polymorphisms and haplotypes. Among lipid profiles, only serum high-density lipoprotein cholesterol （HDL-C） levels were significantly lower in T allele carders than that in non-T carriers after adjusting possible confounding factors （1.21 vs 1.32 mmol/L, P=0.0001）. Condusion Polymorphisms of 45T/G and 276G/T in APM1 gene are not associated with hypertension or obesity, or their clinical features in Chinese Han population. Common polymorphism of 45T/G might be associated with serum HDL-C levels in Chinese.

关键词： Adiponectin HDL-C Hypertension Obesity

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Beneficial effects of moderate to vigorous physical activity on cardiovascular disease among Chinese adults

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Journal of Geriatric Cardiology 2020年第2期17卷 85-95页

作者： Qiong LIU Fang-Chao LIU Ke-Yong HUANG Jian-Xin LI Xue-Li YANG Xin-Yan WANG Ji-Chun CHEN Xiao-Qing LIU Jie CAO Chong SHEN Ling YU Fang-Hong LU Xian-Ping WU Lian-Cheng ZHAO Ying LI dong-Sheng HU Xiang-feng LU Jian-feng HUANG dong-feng gu Key Laboratory of Cardiovascular Epidemiology Chinese Academy of Medical SciencesBeijingChina Department of Epidemiology Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Division of Epidemiology Guangdong Provincial People’s Hospital and Cardiovascular InstituteGuangzhouChina Department of Epidemiology and Biostatistics School of Public HealthNanjing Medical UniversityNanjingChina Department of Cardiology Fujian Provincial HospitalFuzhouChina Cardio-Cerebrovascular Control and Research Center Institute of Basic MedicineShandong Academy of Medical SciencesJinanChina Sichuan Center for Disease Control and Prevention ChengduChina Department of Prevention Medicine Shenzhen University School of MedicineShenzhenChina

Background In China,lack of evidence remains a significant challenge for the national initiative to promote physical activity(PA).We aimed to quantify the beneficial effects of meeting or maintaining the recommended PA level[150 minutes per week(min/wk)of moderate PA or 75 min/wk of vigorous PA or an equivalent combination]on incident cardiovascular disease(CVD)among Chinese *** We included 100,560 participants without history of CVD from three cohorts in the Prediction for Atherosclerotic Cardiovascular Disease Risk in China(China-PAR)*** proportional hazards models were used to estimate hazard ratios(HRs)and 95%confidence intervals(CIs)for CVD events and its subtypes,including stroke,coronary heart disease,heart failure,and CVD *** During a median follow-up of 7.3 years(range:6–15 years),777,163 person-years and 4693 incident CVD events were *** with participants who were inactive at baseline,the multivariable adjusted HR(95%CI)of developing CVD was 0.74(0.69–0.79)for those who met recommended moderate to vigorous physical activity(MVPA)level at ***,the risk of CVD incidence was reduced with increment of MVPA(Ptrend<0.001),and the HR(95%CI)of highly-active versus inactive category was 0.62(0.56–0.68).Compared with individuals who were inactive both at the baseline and follow-up,those keeping active over the period of follow-up had a substantial lower risk of incident CVD with the HR(95%CI)of 0.57(0.43–0.77).Conclusions The findings demonstrated that meeting and maintaining the recommended MVPA level could reduce the cardiovascular *** adoption of the PA recommendations would have considerable health impacts to the Chinese population.

关键词： Cardiovascular disease China Cohort study Physical activity

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监狱监管安全事故的综合测定研究——监管安全事故的月度实发指数的编制

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河北法学 2006年第12期24卷 22-30页

作者：董逢谷上海财经大学上海200433

首先在阐述编制事故实发指数意义的基础上,给出实发指数的数学定义及其多角度评估监管安全整体状况的作用;其次就编制实发指数的具体统计技术进行较为详尽的介绍,包括监管安全事故的界定与数据采集、事故类型与级别区分、数据的整理描... 详细信息

首先在阐述编制事故实发指数意义的基础上,给出实发指数的数学定义及其多角度评估监管安全整体状况的作用;其次就编制实发指数的具体统计技术进行较为详尽的介绍,包括监管安全事故的界定与数据采集、事故类型与级别区分、数据的整理描述、事故分值的汇总、事故的季节变动分析、各种实发指数的编制与实证;最后指明建设监管安全预警系统的路径。

关键词：监管安全事故事故实发指数综合测定研究

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Genetic variants in the ADD1 and GNB3 genes and bloodpressure response to potassium supplementation

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Frontiers of Medicine 2010年第1期4卷 59-66页

作者： Dai-Hai YU De-Pei LIU Lai-Yuan WANG Jing CHEN Cashell E.JAQUISH Dabeeru C.RAO James E.HIXSON Jian-feng HUANG Chung-Shiuan CHEN Charles gu Ji-Chun CHEN Jie CAO Shu-feng CHEN Paul K.WHELTON Jiang HE dong-feng gu Department of Evidence-based Medicine and Population Genetics Cardiovascular Institute and Fu Wai HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100037China Institute of Basic Medical Sciences Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100005China Chinese National Human Genome Center at Beijing Beijing 100176China Department of Epidemiology Tulane University School of Public Health and Tropical MedicineNew OrleansLA 70112USA Department of Medicine Tulane University School of MedicineNew OrleansLA 70112USA National Heart Lungand Blood InstituteNational Institute of HealthBethesdaMD 20892USA Washington University in St.Louis School of Medicine St.LouisMO 63110USA University of Texas School of Public Health HoustonTX 77030USA Loyola University Medical Center MaywoodIL 60153USA

Dietary potassium-supplementation has been associated with a decreased risk of hypertension and other cardiovascular ***,blood pressure(BP)responses to potassium supplementation vary among *** study was designed to examine the association between 12 single nucleotide polymorphisms(SNPs)in the adducin 1 alpha(ADD1)and guanine nucleotide binding protein(G protein)beta polypeptide 3(GNB3)genes and systolic BP(SBP),diastolic BP(DBP),and mean arterial pressure(MAP)responses to *** conducted a 7-day high-sodium intervention(307.8 mmol sodium/day)followed by a 7-day high-sodium with potassium-supplementation(60 mmol potassium/day)among 1906 Han Chinese participants from rural north *** measurements were obtained at the end of each intervention period using a random-zero *** identiﬁed signiﬁcant associations between ADD1 variant rs17833172 and SBP,DBP,and MAP responses to potassium-supplementation(all P<0.0001)that remained signiﬁcant after adjustment for multiple *** participants that were heterozygous or homozygous for the G allele of this marker,SBP,DBP,and MAP response to potassium-supplementation were–3.52(–3.82,–3.21),–1.41(–1.66,–1.15)and–2.12(–2.37,–1.87),respectively,as compared to the corresponding responses of 1.99(0.25,3.73),–0.65(–0.10,–0.21),and–0.23(–0.37,0.83),respectively,for those who were homozygous for A *** addition,participants with at least one copy of the G allele of rs12503220 of the ADD1 gene had significantly increased DBP and MAP response to potassium-supplementation(P=0.0041 and 0.01,respectively),which was also significant after correction for multiple *** and MAP responses to potassiumsupplementation were–1.36(–1.63,–1.10)and–2.07(–2.32,–1.82)for those with at least G allele compared to corresponding responses of 0.86(–0.68,2.40)and–0.45(–1.74,0.84)for those who were homozygous for A *** summary,our study identified novel associations between

关键词： blood pressure genetics polymorphism dietary potassium potassium sensitivity adducin 1 alpha(ADD1) guanine nucleotide binding protein beta polypeptide 3(GNB3)

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Association of the Apolipoprotein B Gene Polymorphisms With Essential Hypertension in Northern Chinese Han Population

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Biomedical and Environmental Sciences 2007年第3期20卷 260-264页

作者： WEI-YAN ZHAO JIAN-feng HUANG LAI-YUAN WANG HONG-FAN LI PENG-HUA ZHANG QI ZHAO SHU-feng CHEN dong-feng gu Department of Evidence Based Medicine and Division of Population Genetics Cardiovascular Institute and Fuwai Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing 100037 China National Human Genome Center Beijing 100176 China

Objective To study the association of the apolipoprotein B gene polymorphisms with essential hypertension in Northern Chinese Han population. Methods XbaI and EcoRl polymorphisms of the apolipoprotein B （APOB） gene were genotyped by polymerase chain reaction （PCR） and restriction fragment-length polymorphism （RFLP） method in 503 unrelated hypertensive patients and 490 healthy controls recruited from international collaborative study of cardiovascular disease in Asia （InterAsia）. Results The difference in the genotypic distributions could be neglected across the groups. The prevalence of X＋ allele in healthy controls （4.8%） was less frequent in Chinese, and there was no significant difference in the frequency of the X＋ allele between cases （5.7%） and controls （P=0.38）. The observed E- allele frequencies were closely similar among groups （5.9% in cases vs 5.0% in controls, P=0.39）. Logitstic regression analyses revealed that the lack of association still persisted after adjustment of other environmental factors. Haplotype analysis showed that X-E＋ was most frequent and no haplotype could significantly contribute to essential hypertension. Conclusion The APOB gene XbaI and EcoRI polymorphisms are not associated with essential hypertension in the Northern Chinese Han population. Future studies on single nucleotide polymorphisms in larger samples are needed to further investigate the possible contribution of the APOB gene to essential hypertension.

关键词： Essential hypertension APOB gene Polymorphisms Case-control study

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