نتایج جستجو برای: rare mutations
تعداد نتایج: 402573 فیلتر نتایج به سال:
BACKGROUND Plasma triglyceride levels are heritable and are correlated with the risk of coronary heart disease. Sequencing of the protein-coding regions of the human genome (the exome) has the potential to identify rare mutations that have a large effect on phenotype. METHODS We sequenced the protein-coding regions of 18,666 genes in each of 3734 participants of European or African ancestry i...
congenital recessive myotonia is a rare genetic disorder caused by mutations in clcn1, which codes for the main skeletal muscle chloride channel clc-1. more than 120 mutations have been found in this gene. the main feature of this disorder is muscle membrane hyperexcitability. here, we report a 59-year male patient suffering from congenital myotonia. he had transient generalized myotonia, which...
neonatal diabetes mellitus (ndm) is a rare kind of diabetes characterized by hyperglycemia and low levels of insulin. clinically, it is categorized into two main types: transient ndm (tndm) and permanent ndm (pndm). these types are diagnosed based on duration of insulin dependence early in the disease. in tndm, diabetes begins in the first few weeks of life with remission in a few months. howev...
Premature ovarian failure (POF) is a heterogeneous disorder, defined as menopause under age 40 years. The prevalence is 1%; POF before age 30 years is much less common. Chromosomal causes have long been recognized - visible deletions of the X chromosome, 45,X/46,XX mosaicism, and autosomal rearrangements (balanced translocations). Toxins or iatrogenic causes (e.g., chemotherapeutic agents) are ...
Myocardial infarction (MI), a leading cause of death around the world, displays a complex pattern of inheritance1,2. When MI occurs early in life, the role of inheritance is substantially greater1. Previously, rare mutations in low-density lipoprotein (LDL) genes have been shown to contribute to MI risk in individual families3–8 whereas common variants at more than 45 loci have been associated ...
Desmoid tumours are rare soft tissue tumours. The a locally invasive monoclonal fibroblastic proliferation leading to variable clinical course. Abnormal functioning of the Wnt/APC/Beta catenin pathway accounts for large proportion desmoid There currently two genetic subtypes: sporadic resulting from somatic CTNNB1 mutations in exon 3 and associated with germline pathogenic variants APC. APC tho...
BACKGROUND Mitochondrial DNA (mtDNA) diseases are rare disorders whose prevalence is estimated around 1 in 5000. Patients are usually tested only for deletions and for common mutations of mtDNA which account for 5-40% of cases, depending on the study. However, the prevalence of rare mtDNA mutations is not known. METHODS We analysed the whole mtDNA in a cohort of 743 patients suspected of mani...
many factors including genetic, environmental, and acquired are involved in breast cancer development across various societies. among all of these factors in families with a history of breast cancer throughout several generations, genetics, like predisposing genes to develop this disease, should be considered more. early detection of mutation carriers in these genes, in turn, can play an import...
background: mutations in β -globin gene may result in β-thalassemia major, which is one of the most common genetic disorders in iran and some other countries. knowing the beta-globin mutation spectrum improves the efficiency of prenatal diagnosis in the affected fetuses (major β-thalassemia) of heterozygote couples. methods: couples with high hemoglobin a 2 and low mean corpuscular volume we...
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