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Association of Homocysteine with Aysmptomatic Intracranial and Extracranial Arterial Stenosis in Hypertension Patients.

Association of Homocysteine with Aysmptomatic Intracranial and Extracranial Arterial Stenosis in Hypertension Patients.
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Wang Y, Zhang J, Qian Y, Tang X, Ling H, Chen K, Li Y, Gao P, Zhu D,


Wang Y, Zhang J, Qian Y, Tang X, Ling H, Chen K, Li Y, Gao P, Zhu D, (click to view)

Wang Y, Zhang J, Qian Y, Tang X, Ling H, Chen K, Li Y, Gao P, Zhu D,

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Scientific reports 2018 01 128(1) 595 doi 10.1038/s41598-017-19125-9
Abstract

Elevated plasma homocysteine (Hcy) is suggested as an independent risk factor for stroke. We aimed to investigate the association of Hcy concentration with intracranial atherosclerosis (ICAS) and extracranial AS (ECAS) in hypertensive patients without stroke in Chinese population and to explore modified effect of methylenetetrahydrofolate reductase (MTHFR) C677T on their relationship. The stenosis of intracranial and extracranial arteries were evaluated in a total of 929 subjects through computerized tomographic angiography (CTA) from aortic arch to the skull base. Hcy concentration showed significantly association with both ICAS (OR: 1.105; 95% CI: 1.057-1.155) and ECAS (OR: 1.096; 95% CI: 1.047-1.146) for 1 µmol/L increment in Hcy. Meanwhile, hyperhomocysteinemia (≥15 µmol/L) was also displayed association with ICAS (OR: 1.587; 95% CI: 1.029-2.446) and ECAS (OR: 2.164; 95% CI: 1.392-3.364) after fully adjustment. Furthermore, in the subgroup analysis, such association remained significant only in the subjects that were younger, with normal renal function and with MTHFR 677 C allele. Our study showed the significant association of Hcy with ECAS and ICAS in asymptomatic hypertension patients. Hcy played a universal effect on the cervico-cerebral atherosclerosis. Such association was modified by the MTHFR C677T genotype.

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