Familial hypertrophic cardiomyopathy: basic concepts and future molecular diagnostics.
نویسندگان
چکیده
Familial hypertrophic cardiomyopathies (FHC) are the most common genetic heart diseases in the United States, affecting nearly 1 in 500 people. Manifesting as increased cardiac wall thickness, this autosomal dominant disease goes mainly unnoticed as most affected individuals are asymptomatic. Up to 1-2% of children and adolescents and 0.5-1% adults with FHC die of sudden cardiac death, making it critical to quickly and accurately diagnose FHC to institute therapy and potentially reduce mortality. However, due to the heterogeneity of the genetic defects in mainly sarcomere proteins, this is a daunting task even with current diagnostic methods. Exciting new methods utilizing high-throughput microarray technology to identify FHC mutations by a method known as array-based resequencing has recently been described. Additionally, next generation sequencing methodologies may aid in improving FHC diagnosis. In this review, we discuss FHC pathophysiology, the rationale for testing, and discuss the limitations and advantages of current and future diagnostics.
منابع مشابه
The importance of genetic counseling, DNA diagnostics, and cardiologic family screening in left ventricular noncompaction cardiomyopathy.
BACKGROUND Left ventricular (LV) noncompaction (LVNC) is a distinct cardiomyopathy featuring a thickened bilayered LV wall consisting of a thick endocardial layer with prominent intertrabecular recesses with a thin, compact epicardial layer. Similar to hypertrophic and dilated cardiomyopathy, LVNC is genetically heterogeneous and was recently associated with mutations in sarcomere genes. To con...
متن کاملBasic science MYOCARDIAL MOLECULAR BIOLOGY: AN INTRODUCTION
The recent publication of draft copies of the human genome sequence from both public and private sector consortia has fuelled anticipation that eventually, once all genes have been identified, we will be able to ascertain which of them are involved in human diseases, including those affecting the cardiovascular system. Understanding the molecular biology behind both inherited and acquired disor...
متن کاملGenetic factors in familial hypertrophic cardiomyopathy: does molecular cardiology offer new perspectives?
متن کامل
Progress in familial hypertrophic cardiomyopathy: molecular genetic analyses in the original family studied by Teare.
In this journal in 1958 Donald Teare reported the pathological findings in a series of eight unrelated young adults who died suddenly and who at necropsy had manifested gross asymmetrical hypertrophy of the heart.' In a footnote, he noted the recent sudden death of the brother of one of the original cases, thus identifying the familial nature of this condition. The subsequent report2 of two gen...
متن کاملMolecular Diagnostics of Cardiomyopathies The Future Is Here Richard
Major advances have been made in defining the genetic basis of inherited cardiac diseases. There are now 40 cardiovascular diseases in which a genetic cause has been identified, ranging from the inherited cardiomyopathies, such as hypertrophic cardiomyopathy (HCM) and dilated cardiomyopathy (DCM), to primary arrhythmogenic disorders, such as familial long QT syndrome.1–3 The successful identifi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Clinical biochemistry
دوره 42 9 شماره
صفحات -
تاریخ انتشار 2009