Track topics on Twitter Track topics that are important to you
Hypertension is a multifactorial disease with genetic and environmental factors contributing to the disease process. HYPGENE will investigate gene-fitness and gene-obesity interactions that relate to the development of hypertension during adulthood. The study uses the cohort of the Aerobics Center Longitudinal Study (ACLS) at the Cooper Clinic.
The HYPGENE Study is a collaborative effort between the Pennington Biomedical Research Center, the Cooper Institute, and Washington University in St. Louis. The aim of the study is to investigate the contributions of DNA sequence variation in candidate genes as well as their interactions with cardiorespiratory fitness and obesity to the risk of hypertension in participants of the Aerobics Center Longitudinal Study (ACLS). In the first phase (as of 12/01/03), a group of 1000 subjects, who were normotensive and free of cardiovascular disease and diabetes at the time of their first preventive medical examination (from 01/1987 to 02/2001) will be selected from the ACLS cohort. Half of these subjects (n=500) developed hypertension during the follow-up period (duration 2 to 16 years), whereas the other half remained normotensive. In the second phase (from 12/03 to 11/05), the sample size will be increased to 1500 subjects (750 cases and 750 controls). Cases are defined as individuals who were normotensive at baseline but developed essential hypertension during follow-up. Comparison individuals are those who also were normotensive at baseline and remained normotensive during follow-up. The ascertainment of the case-control status will be done during the subjects' return visits to the Cooper Clinic. A panel of biallelic single nucleotide polymorphisms in candidate gene loci will be typed. The candidate genes are selected based on their putative roles in the physiological pathways pertaining to the regulation of blood pressure by fitness and obesity, or on evidence of linkages and associations in previous studies. The candidates include endothelial factors contributing to vasodilation and vasoconstriction, beta-adrenergic receptors and their kinases, which mediate the effects of autonomic nervous system on cardiac function and vascular tone, the renin angiotensin system, and signaling molecules that mediate the effects of laminar shear stress on vascular wall enzyme activity and gene expression. Logistic regression modeling and classification and regression trees methodology will be used to analyze the contribution of genotype, fitness level and obesity, as well as their interactions, to the risk of hypertension. The HYPGENE study will produce novel data on the effects of genetic factors in the presence of either high or low cardiorespiratory fitness level or obesity or normal body weight on the development of hypertension. These data could ultimately lead to more efficient use of physical activity and body weight control in the primary and secondary prevention of hypertension.
National Heart, Lung, and Blood Institute (NHLBI)
Published on BioPortfolio: 2014-08-27T03:54:20-0400
Human immunodeficiency virus (HIV) infection has been associated with a variety of cardiovascular diseases. Even most industrialised countries exhibit a growing and aging population of HIV...
This study evaluates the effects of different volumes of aerobic exercise training in cardiovascular parameters of patients with cardiovascular diseases enrolled in a cardiac rehabilitatio...
The purpose of this study is to better understand the association between the postprandial biomarker responses after a food challenge with the development of cardiovascular diseases in hea...
To develop a comprehensive protocol for assessing cardiovascular reactivity to stressors, for use in epidemiological and clinical investigations of cardiovascular diseases in healthy popul...
The Silesian Cardiovascular Database is an observational study of all patients hospitalized due to cardiovascular diseases. The date include information on the clinical characteristics, tr...
To examine the trend of cardiovascular diseases (CVD) risk factors among a Middle Eastern population with prevalent CVD during a median follow up of 12 years.
Cardiovascular diseases are life-threatening illnesses with high morbidity and mortality. Suppressed vagal (parasympathetic) activity and increased sympathetic activity are involved in these diseases....
The aim of the present study was to examine the relation between understanding of emotions and cardiovascular related diseases, namely coronary heart disease, diabetes mellitus and obesity. The unique...
Epicardial fat (EPI) plays important role in development of metabolic and cardiovascular diseases. According to population studies EPI represents independent risk factor of cardiovascular diseases (CV...
Pathological conditions involving the CARDIOVASCULAR SYSTEM including the HEART; the BLOOD VESSELS; or the PERICARDIUM.
Methods and procedures for the diagnosis of diseases or dysfunction of the cardiovascular system or its organs or demonstration of their physiological processes.
Diseases of long duration and generally slow progression. The four main types of noncommunicable diseases are CARDIOVASCULAR DISEASES (e.g., heart attacks and stroke), CANCER, chronic respiratory diseases (e.g., CHRONIC OBSTRUCTIVE PULMONARY DISEASE and ASTHMA) and DIABETES MELLITUS.
Unexpected rapid natural death due to cardiovascular collapse within one hour of initial symptoms. It is usually caused by the worsening of existing heart diseases. The sudden onset of symptoms, such as CHEST PAIN and CARDIAC ARRHYTHMIAS, particularly VENTRICULAR TACHYCARDIA, can lead to the loss of consciousness and cardiac arrest followed by biological death. (from Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 7th ed., 2005)
Dental care for patients with chronic diseases. These diseases include chronic cardiovascular, endocrinologic, hematologic, immunologic, neoplastic, and renal diseases. The concept does not include dental care for the mentally or physically disabled which is DENTAL CARE FOR DISABLED.
Women's Health - key topics include breast cancer, pregnancy, menopause, stroke Follow and track Women's Health News on BioPortfolio: Women's Health News RSS Women'...
The United States Food and Drug Administration (FDA) has approved on October 8th 2013 Adempas® (riociguat) tablets for: (i) the treatment of adults with persistent/recurrent chronic thromboembolic pulmonary hypertension (CTEPH) (WHO* Group 4) after ...
Cardiology is a specialty of internal medicine. Cardiac electrophysiology : Study of the electrical properties and conduction diseases of the heart. Echocardiography : The use of ultrasound to study the mechanical function/physics of the h...