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Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
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When more than one gene is responsible for a given phenotype, the trait is considered polygenic. Human height is a polygenic trait. Studies have uncovered hundreds of loci that influence height, and there are believed to be many more. Due to the high number of genes involved, as well as environmental and nutritional factors, height varies significantly within a given population. The distribution of height forms a bell-shaped curve, with relatively few individuals in the population at the...
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Pharmacogenetic Phenotypes: Alterations in Pharmacokinetics, Drug Targets and Biologic Milieu01:29

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Coronary Artery Disease II: Pathophysiology01:26

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A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
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[Ischemic stroke as a complex polygenic disease].

B V Titov, N A Matveeva, M Yu Martynov

    Molekuliarnaia Biologiia
    |June 13, 2015
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    Summary
    This summary is machine-generated.

    Genetic factors contribute to ischemic stroke (IS), a major health issue. Identifying these genetic predispositions is challenging due to inconsistent results, requiring studies in homogeneous populations.

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    Area of Science:

    • Genetics
    • Neurology
    • Public Health

    Context:

    • Acute cerebrovascular accidents, particularly ischemic stroke (IS), represent a significant global health challenge.
    • IS is a complex, multifactorial polygenic disease influenced by genetic components and environmental risk factors.
    • Current research employs candidate gene and genome-wide association studies to identify genetic predispositions to IS.

    Purpose:

    • To review existing literature on the genetic susceptibility to ischemic stroke.
    • To assess the progress and challenges in identifying genetic risk factors for IS.
    • To highlight future research directions for understanding IS pathophysiology.

    Summary:

    • The review indicates progress in identifying genetic factors for IS but notes significant challenges in replicating findings.
    • The polygenic nature of IS, involving interactions between genes and risk factors, complicates genetic association studies.
    • Low replication rates hinder the development of reliable genetic risk prediction models for IS.

    Impact:

    • Advances in understanding IS genetic susceptibility can inform the study of its molecular mechanisms.
    • Improved identification of genetic risk factors may lead to personalized IS prognosis.
    • Focusing on ethnically homogeneous populations and specific IS subtypes could improve research reproducibility.