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Blood pressure is a quantitative trait affected by both genetic and environmental factors. Stanford-Asian Pacific Program in Hypertension and Insulin Resistance (SAPPHIRe) is an international genetic study, which intends to map the major genetic loci underlying hypertension in sibpairs of Asian-Pacific Chinese and Japanese origin.
Success in genetic studies may depend on many factors including the selection of the patient population, the identification of intermediate phenotypes, the disease subsets, and the genetic strategy and methodologies employed.
In order to reduce heterogeneity of the genetic and environmental background, we will focus our investigation on the Chinese population. Furthermore, besides the variables associated with insulin resistance, which were collected and studied in year 1 through 5 of SAPPHIRe, some more variables from echocardiographic examination and multi-detector row computed tomography (MDCT) will be collected and studied.
Hypertension is a major risk factor for stroke, myocardial infraction and renal disease. Hypertension often occurs in combination with other metabolic complications such as hyperlipidemia, obesity and insulin resistance. The combined disorder is often called the metabolic syndrome.
Our general approach is to continue analyzing candidate genes as well as perform a complete genome search based on the exiting genome-wide scan data together with old and new phenotype variables. Our objective is to identify susceptible gene for hypertension through incorporating intermediate phenotypes and to find gene markers for developing useful screening tools for the high risk group in order to prevent or early detect cardiovascular disorder patients.
Observational Model: Family-Based, Time Perspective: Retrospective
Division of Biostatistics and Bioinformatics, NHRI
National Health Research Institutes, Taiwan
Published on BioPortfolio: 2014-08-27T03:32:19-0400
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Hypertension is frequently studied in surveys; however, prehypertension, a new blood pressure status between normotension and hypertension, is rarely reported.
Heterogeneous causes can determinate hypertension.
A condition in pregnant women with elevated systolic (>140 mm Hg) and diastolic (>90 mm Hg) blood pressure on at least two occasions 6 h apart. HYPERTENSION complicates 8-10% of all pregnancies, generally after 20 weeks of gestation. Gestational hypertension can be divided into several broad categories according to the complexity and associated symptoms, such as EDEMA; PROTEINURIA; SEIZURES; abnormalities in BLOOD COAGULATION and liver functions.
Hypertension due to RENAL ARTERY OBSTRUCTION or compression.
Increased pressure within the cranial vault. This may result from several conditions, including HYDROCEPHALUS; BRAIN EDEMA; intracranial masses; severe systemic HYPERTENSION; PSEUDOTUMOR CEREBRI; and other disorders.
Familial or idiopathic hypertension in the PULMONARY CIRCULATION which is not secondary to other disease.
The active alterations of vascular wall structures, often leading to elevated VASCULAR RESISTANCE. It is associated with AGING; ATHEROSCLEROSIS; DIABETES MELLITUS; HYPERTENSION; PREGNANCY; PULMONARY HYPERTENSION; and STROKE, but is also a normal part of EMBRYOGENESIS.
Cardiovascular disease (CVD)
Acute Coronary Syndromes (ACS) Blood Cardiovascular Dialysis Hypertension Stent Stroke Vascular Cardiovascular disease (CVD) includes all the diseases of the heart and circulation including coronary heart disease (angina...
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...
Pulmonary arterial hypertension (PAH) is a chronic, life-threatening disorder characterized by abnormally high blood pressure in the arteries between the heart and lungs of affected individuals. Symptoms can range from mild breathles...