ObjectiveTo study the levels of Tau protein and β amyloid protein(Aβ) in cerebrospinal fluid(CSF) in patients with mild cognitive impairment(MCI) and their significance of diagnosis. MethodsSensitive enzyme linked immunosorbent assay were performed to detect the CSF levels of Tau protein and Aβ in 32 patients with MCI and 15 healthy controls. ResultsSignificant elevation of the level of Tau protein and decrease of the level of the Aβ were observed in patients with MCI compared with healthy controls.ConclusionThe assays of the CSF Tau and Aβprotein levels can provide valuable biological marker for the diagnoses and treatment of MCI.
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