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Common variation in PHACTR1 is associated with susceptibility to cervical artery dissection
Ist Teil von
Nature genetics, 2015-01, Vol.47 (1), p.78-83
Ort / Verlag
New York: Nature Publishing Group US
Erscheinungsjahr
2015
Quelle
MEDLINE
Beschreibungen/Notizen
Stéphanie Debette and colleagues report the results of a genome-wide association study of cervical artery dissection, a major cause of ischemic stroke in young adults. They show that common variation in
PHACTR1
, previously associated with lower risk of migraine and increased risk of myocardial infarction, is associated with reduced risk of cervical artery dissection.
Cervical artery dissection (CeAD), a mural hematoma in a carotid or vertebral artery, is a major cause of ischemic stroke in young adults although relatively uncommon in the general population (incidence of 2.6/100,000 per year)
1
. Minor cervical traumas, infection, migraine and hypertension are putative risk factors
1
,
2
,
3
, and inverse associations with obesity and hypercholesterolemia are described
3
,
4
. No confirmed genetic susceptibility factors have been identified using candidate gene approaches
5
. We performed genome-wide association studies (GWAS) in 1,393 CeAD cases and 14,416 controls. The rs9349379[G] allele (
PHACTR1
) was associated with lower CeAD risk (odds ratio (OR) = 0.75, 95% confidence interval (CI) = 0.69–0.82;
P
= 4.46 × 10
−10
), with confirmation in independent follow-up samples (659 CeAD cases and 2,648 controls;
P
= 3.91 × 10
−3
; combined
P
= 1.00 × 10
−11
). The rs9349379[G] allele was previously shown to be associated with lower risk of migraine and increased risk of myocardial infarction
6
,
7
,
8
,
9
. Deciphering the mechanisms underlying this pleiotropy might provide important information on the biological underpinnings of these disabling conditions.