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  • Title: [Association of plasma homocysteine and cystathionine beta-synthase polymorphism with cerebral thrombosis].
    Author: Shao Y, Zhang CG, Cui JH.
    Journal: Di Yi Jun Yi Da Xue Xue Bao; 2005 Mar; 25(3):351-3. PubMed ID: 15772012.
    Abstract:
    OBJECTIVE: To study the association of plasma homocysteine (Hcy) and polymorphism and cystathionine beta-synthase (CBS) with cerebral thrombosis. METHODS: Eighty-seven patients with first-ever acute cerebral thrombosis and 80 control subjects were examined for plasma Hcy levels using high-performance liquid chromatography-fluorescence detection and for CBS polymorphism determined by amplification refractory mutation system. RESULTS: The fasting plasma Hcy level was l5.28 micromol/L (95% CI 14.37-16.19 micromol/L) in the patient group, higher than that in the control group (11.32 micromol/L, 95% C1 10.47-12.16 micromol/L, P<0.001). Plasma Hcy levels varied with different genotypes. No difference in genotype or allele frequencies was noted between patient group and control group (P>0.05). CONCLUSION: Common mutations in CBS G919A and CBS T833C lead to hyperhomocysteinemia, which, instead of common mutations in CBS, is more directly associated with increased risk of cerebral thrombosis.
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