Yan Shao1, Cheng-Guo Zhang, Jin-Huan Cui. 1. Department of Neurology, First People's Hospital of Foshan City, Foshan 528000, China. shaoyan2001@21cn.com
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.
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 CBSG919A and CBST833C lead to hyperhomocysteinemia, which, instead of common mutations in CBS, is more directly associated with increased risk of cerebral thrombosis.