Document Detail


Genetic variants in serum and glucocortocoid regulated kinase 1, a regulator of the epithelial sodium channel, are associated with ischaemic stroke.
MedLine Citation:
PMID:  21430556     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Serum and glucocorticoid regulated kinase 1 (SGK1) expression is increased by aldosterone and is a key regulator of the amiloride-sensitive sodium channel (ENaC) in the distal nephron. We have previously shown that two SNPs in SGK1 (rs1057293 and rs1743966) are associated with blood pressure variation and blood pressure progression in the general population. Therefore, we tested the association of these variants with ischaemic stroke.
METHODS: Using logistic regression, we analysed rs1057293 and rs1743966 for association with ischaemic stroke in two independent age-matched and sex-matched case-control groups from the twin cities of Lund (cases n=1837 and controls n=947) and Malmö (cases n=888 and controls n=893) in the Scania region of southern Sweden.
RESULTS: In additive models adjusted for hypertension, smoking and diabetes, the major allele (G) of rs1057293 was associated (odds ratio, 95% confidence interval; P value) with ischaemic stroke with similar effect size in both studies; in Lund (1.35, 1.11-1.64; P=0.002) and Malmö (1.30, 1.03-1.65; P=0.027). When the two studies were pooled, the overall association was 1.32, 1.14-1.52; P<0.001. The major allele of rs1743966 (A), which was in linkage disequilibrium with rs1057293, showed a similar trend as rs1057293 G-allele but with slightly weaker effect size and P value.
CONCLUSION: In two independent but ethnically similar populations, we observed an association between genetic variants in SGK1 and ischaemic stroke. Interestingly, the association seems to be at least partially independent of blood pressure. This could imply that cerebrovascular ENaC or other SGK1-regulated proteins may be of importance for development of ischaemic stroke.
Authors:
Jonas Dahlberg; Gustav Smith; Bo Norrving; Peter Nilsson; Bo Hedblad; Gunnar Engström; Håkan Lövkvist; Joyce Carlson; Arne Lindgren; Olle Melander
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of hypertension     Volume:  29     ISSN:  1473-5598     ISO Abbreviation:  J. Hypertens.     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-04-08     Completed Date:  2011-07-29     Revised Date:  2011-11-02    
Medline Journal Info:
Nlm Unique ID:  8306882     Medline TA:  J Hypertens     Country:  England    
Other Details:
Languages:  eng     Pagination:  884-9     Citation Subset:  IM    
Copyright Information:
© 2011 Wolters Kluwer Health | Lippincott Williams & Wilkins
Affiliation:
Clinical Research Center (CRC), Entrance 72, Bldg 91, Floor 12, Malmö University Hospital, SE 205 02 Malmö, Sweden.
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MeSH Terms
Descriptor/Qualifier:
Aged
Aged, 80 and over
Brain Ischemia / genetics*
Case-Control Studies
Epithelial Sodium Channel / physiology*
Female
Humans
Immediate-Early Proteins / genetics*,  physiology
Logistic Models
Male
Middle Aged
Protein-Serine-Threonine Kinases / genetics*,  physiology
Stroke / genetics*
Chemical
Reg. No./Substance:
0/Epithelial Sodium Channel; 0/Immediate-Early Proteins; EC 2.7.11.1/Protein-Serine-Threonine Kinases; EC 2.7.11.1/serum-glucocorticoid regulated kinase

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