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CSF tau protein phosphorylated at threonine 231 correlates with cognitive decline in MCI subjects
K Buerger1, S J Teipel, R Zinkowski
1Dementia Research Section and Memory Clinic, Alzheimer Memorial Center, Department of Psychiatry, Ludwig-Maximilian University, Munich, Germany. katharina.buerger@psy.med.uni-muenchen.de
Abstract:
In this longitudinal study of 77 patients with mild cognitive impairment (MCI), the authors analyzed whether levels of tau protein phosphorylated at threonine 231 (p-tau(231)) in CSF correlate with progression of cognitive decline. High CSF p-tau(231) levels at baseline, but not total tau protein levels, correlated with cognitive decline and conversion from MCI to AD. Independently, old age and APOE-epsilon 4 carrier status were predictive as well. Our data indicate that an increased p-tau(231) level is a potential risk factor for cognitive decline in patients with MCI.