Parkinson Hastalığı ve Çoklu Sistem Atrofisinde Kromogranin A'nın Serebrospinal Sıvı Seviyeleri.

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BackgroundChromogranin A (CgA) and other peptides from the chromogranin-secretogranin family have been recently studied as potential biomarkers of various neurodegenerative diseases, including Parkinson's disease (PD).MethodsWe measured CgA in the cerebrospinal fluid (CSF) of 119 PD patients, 18 multiple system atrophy (MSA) patients, and 31 age-matched controls. We also correlated the values with disease duration and levodopa dose equivalent.ResultsIn the PD patients, CSF CgA tended to be lower than the control group (median 124.5 vs. 185.2 µg/L; p = 0.057); however, the results did not reach statistical significance. CSF CgA levels in MSA were significantly lower compared to the control group (median 104.4 vs. 185.2; p = 0.014). There was no significant difference in CSF CgA between PD and MSA patients (p = 0.372). There was no association between CSF CgA and disease duration or levodopa dose equivalent in PD or in MSA.ConclusionsWe observed a tendency toward lower CSF CgA levels in both PD and MSA compared to the control group; however, the difference reached statistical significance only in MSA. Based on these results, CgA may have potential as a biomarker in PD and MSA, but further studies on larger numbers of patients are needed to draw conclusions.

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