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23 September 2017 : Clinical Research  

Aldehyde Dehydrogenase 2 (ALDH2) Glu504Lys Polymorphism Affects Collateral Circulation and Short-Term Prognosis of Acute Cerebral Infarction Patients

Yun Qu12E, Huilong Zhang3C, Haiyong Li3A, Limei Yu3C, Ying Sun3G, Yuguo Chen1F*

DOI: 10.12659/MSM.905206

Med Sci Monit 2017; 23:4559-4566

Abstract

BACKGROUND: Acute cerebral infarction is a major clinical subtype of ischemic stroke that has become a leading cause of death and disability worldwide. Aldehyde dehydrogenase 2 (ALDH2) is an important oxidative enzyme in alcohol metabolism. The polymorphism of ALDH2 Glu504Lys polymorphism modifies the activity of this enzyme. However, the potential association between the allelic variation of ALDH2 Glu504Lys with collateral circulation and short-term prognosis of acute cerebral infarction remains unclear.

MATERIAL AND METHODS: A total of 394 patients with acute cerebral infarction were recruited for ALDH2 genotyping using direct sequencing. Cerebrovascular stenosis and collateral circulation were evaluated by digital subtraction angiography (DSA). Short-term prognosis was assessed in accordance with the modified Ranking Scale (mRS).

RESULTS: We identified 297 as EAS and 394 as IAS. There were more patients with occluded blood vessel in the opened group and far fewer in the unopened group. ALDH2 polymorphism was significantly different among the primary, secondary, and tertiary opened groups. ALDH2 gene Glu504Lys was significantly associated with short-term prognosis. The genotype GA+AA of ALDH2 gene Glu504Lys locus was an independent risk factor of poor 90-day prognosis.

CONCLUSIONS: ALDH2 Glu504Lys could be a risk factor for collateral circulation and a negative predictor for short-term prognosis in acute cerebral infarction in Han Chinese. ALDH2 Glu504Lys could be a new therapeutic target for patients with acute cerebral infarction.

Keywords: atherosclerosis, Prognosis, Stroke

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750