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Published on: March 12, 2013
KCNK17 genetic variants in ischemic stroke.
Sophie Domingues-Montanari1, Israel Fernández-Cadenas, Alberto Del Río-Espinola
1Neurovascular Research Laboratory and Neurovascular Unit, Neurology and Medicine Departments-Universitat Autònoma de Barcelona, Vall d'Hebron Hospital, Passeig Vall d'Hebron 119-129, Barcelona, Spain.
The A allele of the KCNK17 gene variant rs10947803 is linked to a higher risk of ischemic stroke (IS). This genetic factor also increases KCNK17 gene expression, suggesting potential diagnostic and therapeutic targets for IS.
Area of Science:
- Genetics
- Neurology
- Molecular Biology
Background:
- Genetic factors play a role in ischemic stroke (IS) development.
- Genome-wide association studies (GWAS) have identified potential stroke susceptibility variants.
Purpose of the Study:
- To identify genetic susceptibility variants for ischemic stroke (IS).
- To investigate the role of specific single nucleotide polymorphisms (SNPs) in IS etiology.
- To elucidate the functional impact of identified variants on gene expression.
Main Methods:
- Analysis of 12 single nucleotide polymorphisms (SNPs) in a White population including IS patients and controls.
- Stratification by stroke etiology and adjustment for confounding variables.
- Functional studies including gene expression analysis of KCNK17 mRNA levels.
Main Results:
- The KCNK17 gene variant rs10947803 (A allele) was significantly associated with an increased risk of IS (p=0.003).
- KCNK17 mRNA levels were elevated in IS patients during the acute phase compared to controls (p=0.002).
- KCNK17 RNA levels correlated with rs10947803 SNP alleles in control and chronic IS groups.
Conclusions:
- The rs10947803 variant in the KCNK17 gene is associated with increased IS risk and elevated KCNK17 gene expression.
- The potassium channel gene KCNK17 presents potential diagnostic and therapeutic avenues for IS.
- Further research is warranted to explore the role of KCNK17 in ischemic stroke.
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