Plasma Homosistein, B12 Vitamini ve Parkinson Hastalığında Folat Özellikleri: Güncellenmiş Bir Meta-Analiz.

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BackgroundMany studies have shown that the levels of homocysteine (Hcy), vitamin B12 (Vit B12), and folate (FA) are abnormal in patients with Parkinson's disease (PD), but the results have not been consistent. Therefore, we conducted this meta-analysis to summarize the features of Hcy, Vit B12, and FA in PD patients.MethodsA systematic literature search was conducted on PubMed, Cochrane Library, Web of Science, and Embase databases.ResultsA total of 71 studies were included. The analysis showed the following. (1) PD patients had significantly increased Hcy level (standardized mean difference [SMD] 0.80, 95% confidence interval [CI] [0.61, 0.99]; p p p p p p = 0.001) and FA levels (SMD -0.17, 95% CI [-0.29, -0.04]; p = 0.009) than those with no cognitive impairment. (4) PD patients with neuropathy had significantly increased Hcy level (SMD 0.87, 95% CI [0.43, 1.31]; p p = 0.049) compared to PD patients with no neuropathy.ConclusionsIn conclusion, PD patients may have higher Hcy levels and lower Vit B12 and FA levels than the healthy population. Thus, Hcy, Vit B12, and FA may play a role in cognitive impairment and neuropathy in PD patients.

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