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Seet, R.C. et al.

Raymond C. S. Seet, Katherine Kasiman, Jan Gruber, Soon-Yew Tang, Meng-Cheong Wong, Hui-Meng Chang, Yiong-Huak Chan, Barry Halliwell, Christopher P. Chen,

Is uric acid protective or deleterious in acute ischemic stroke? A prospective cohort study.

Contrasting observations have been made between serum urate and ischemic stroke outcomes in studies involving Caucasian populations. To assess the hypothesis that urate is associated with stroke outcomes, a prospective follow-up study was performed in a cohort of Asian patients with ischemic stroke. Patients diagnosed with transient ischemic attack, first or recurrent ischemic stroke were included in this study. Serum urate, measured using high-performance liquid chromatography, was correlated with 12-month functional and vascular stroke outcomes. Poor functional outcome was defined as a modified Rankin scale exceeding 2 and vascular outcome was defined as a composite of recurrent stroke, myocardial infarction or vascular death during the study period. A total of 503 patients of mean age 63 (SD 12) years were included. A U-shaped relationship between urate quartiles and poor functional outcomes was demonstrated. More patients with low (<280microM) and high (>410microM) urate levels had poor functional outcomes (36% and 27% respectively), compared to those with urate levels between 340 and 410microM (14%). No significant relationship was observed between urate and vascular outcomes. Depending on its level, serum urate may exhibit protective and deleterious effects on stroke outcomes.[1]

References

Is uric acid protective or deleterious in acute ischemic stroke? A prospective cohort study. Seet, R.C., Kasiman, K., Gruber, J., Tang, S.Y., Wong, M.C., Chang, H.M., Chan, Y.H., Halliwell, B., Chen, C.P. Atherosclerosis (2010) [Pubmed]

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