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To identify new dilated cardiomyopathy genes by genetic linkage and mutational analyses.
Dilated cardiomyopathy (DCM) is a heritable, genetically heterogeneous disorder causing congestive heart failure. Current medical therapy has minimal impact on prognosis and cardiac transplantation is the only definitive treatment for end-stage disease. The molecular and cellular mechanisms underlying DCM are poorly defined, but the importance of single gene defects in disease pathogenesis is becoming increasingly apparent.
The genetic epidemiology study will identify novel dilated cardiomyopathy genes using genetic linkage and mutational analyses. The first aim is to determine the chromosomal location of novel familial dilated cardiomyopathy genes. This will be accomplished by genome-wide genotyping and genetic linkage analyses in three large families with autosomal dominant dilated cardiomyopathy. Previously identified dilated cardiomyopathy genes have been excluded in these families. The second aim is to identify mutations in novel genes that cause familial dilated cardiomyopathy by linkage and sequence analyses of candidate genes mapping to dilated cardiomyopathy loci. Once novel genes for familial dilated cardiomyopathy are identified, the third aim will be to determine the role of these genes in a large cohort of unrelated patients with familial and sporadic dilated cardiomyopathy. High throughput DNA sequence analyses will be performed to identify additional inherited and de novo mutations.
National Heart, Lung, and Blood Institute (NHLBI)
Published on BioPortfolio: 2014-08-27T03:55:46-0400
The purpose of this study is to determine whether a larger dose of the aldosterone antagonist spironolactone combined with a lower dose of an ACE inhibitor is more effective in reverse lef...
Intracoronary infusion of bone marrow derived progenitor cells into the LAD in patients with non ischemic dilated cardiomyopathy.
This study will evaluate the prognostic utility of novel ECG markers of electrical instability in patients with cardiomyopathy.
Dilated cardiomyopathy is a heart muscle disorder characterized by systolic dysfunction and dilation of the left or both ventricles.Dilated cardiomyopathy can develop in people of any age ...
The primary aim of this study is to assess the changes on the shape and function of the left ventricle in patients with severe mitral valve regurgitation due to congestive heart failure an...
Dilated Cardiomyopathy is a serious heart disorder that may induce sudden cardiac death and heart failure. Significant progress has been made in understanding the molecular basis of dilated cardiomyop...
Takotsubo cardiomyopathy (TTC) is a stress-related transient cardiomyopathy. Life threatening arrhythmias (LTA) can occur and worsen prognosis.
Takotsubo cardiomyopathy or stress cardiomyopathy is characterized by transient left ventricular apical ballooning in the absence of coronary occlusion. The underlying pathophysiological mechanism is ...
Stimulant abuse is associated with cardiomyopathy, but cardiomyopathy rates with therapeutic use of stimulants for attention-deficit/hyperactivity disorder (ADHD) are poorly characterized. Labels for ...
Cirrhotic cardiomyopathy is characterized by an attenuated contractile response to stress. Long-term exposure of β-adrenergic receptors to persistently high levels of catecholamines has been implicat...
A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).
Disease of CARDIAC MUSCLE resulting from chronic excessive alcohol consumption. Myocardial damage can be caused by: (1) a toxic effect of alcohol; (2) malnutrition in alcoholics such as THIAMINE DEFICIENCY; or (3) toxic effect of additives in alcoholic beverages such as COBALT. This disease is usually manifested by DYSPNEA and palpitations with CARDIOMEGALY and congestive heart failure (HEART FAILURE).
An autosomal dominant inherited form of HYPERTROPHIC CARDIOMYOPATHY. It results from any of more than 50 mutations involving genes encoding contractile proteins such as VENTRICULAR MYOSINS; cardiac TROPONIN T; ALPHA-TROPOMYOSIN.
An autoimmune disorder of the EYE, occurring in patients with Graves disease. Subtypes include congestive (inflammation of the orbital connective tissue), myopathic (swelling and dysfunction of the extraocular muscles), and mixed congestive-myopathic ophthalmopathy.
A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION; (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY).
Organ transplantation is the moving of an organ from one body to another or from a donor site to another location on the patient's own body, for the purpose of replacing the recipient's damaged or absent organ. The emerging field of regenerative ...
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...