J Clin Neurol.  2008 Mar;4(1):17-22. 10.3988/jcn.2008.4.1.17.

beta-Fibrinogen Gene -455 G/A Polymorphism in Korean Ischemic Stroke Patients

• Lee SH
• Kim MK
• Park MS
• Choi SM
• Kim JT
• Kim BC
• Cho KH

• KMID: 2287680
• DOI: http://doi.org/10.3988/jcn.2008.4.1.17

Abstract

Background and Purpose
We investigated the relationship between the beta-fibrinogen gene (FGB) -455 G/A polymorphism and plasma fibrinogen levels in Korean ischemic stroke patients. We also determined whether the frequency of the -455 G/A polymorphism differed between two subtypes of noncardioembolic stroke: large-artery atherosclerosis (LAA) and small-vessel occlusion (SVO). Methods: A total of 267 patients with noncardioembolic stroke were enrolled. Plasma fibrinogen and other risk factors for stroke were evaluated. FGB -455 G/A genotypes were determined by polymerase chain reaction with restrictive enzyme Hae III and automatic DNA sequencing. Results: The FGB -455 G/A polymorphism was significantly associated with an elevated plasma fibrinogen level (p<0.001). The frequency of the A allele in Korean stroke patients was 16.7%. However, the frequency of the -455 G/A polymorphism did not differ between LAA and SVO. Conclusions: The plasma fibrinogen level might be affected by the -455 G/A polymorphism in noncardioembolic stroke patients. However, the LAA and SVO subtypes of ischemic stroke were not affected by the -455 G/A polymorphism.

Keyword

Fibrinogen; Polymorphism; Stroke

MeSH Terms

Alleles
Atherosclerosis
Fibrinogen
Genotype
Humans
Plasma
Polymerase Chain Reaction
Risk Factors
Sequence Analysis, DNA
Stroke
Fibrinogen

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