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A Research Study On Restless Legs Syndrome

Decent Essays

1. Describe the “phenotype” that is being studied in this analysis and the specific prior evidence that suggests that any further work will reveal a genetic factor. Restless legs syndrome is a condition characterized by four general criteria. i. Impulsiveness to move limbs regardless or paresthesia ii. Subjects experience worsening symptoms at rest iii. Partial relief of symptoms associated with movement iv. Symptoms tend to worsen in the evening Although the exact cause is unknown, this study illustrates a positive correlation derived from pathology studies of reduced intracellular iron stores and familial history upwards of 65% denoting possible inheritance of genetic attributes. Previous studies show that RLS symptoms may improve with dopaminergic medication suggesting a possible mechanism pertaining to the dopaminergic system. 2. Why did this study examine ONLY people from “North America” in conducting this specific linkage analysis? Why not other populations? Baylor College of Medicine ran this study to examine multiplex RLS presence in 15 separate families. Since the goal is to examine heritable factors, this study required willing and related participants, which happened to be 453 subjects accessioned at the Movement Disorders Clinic by Baylor in Texas. Furthermore, the introduction claims that the RLS phenomena is more prevalent in populations of European ancestry compared to Asians and Africans. Thus, these studies are specifically for families with a history of

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