NRGN and Cognitive impairment: BackgroundMarkers of synaptic degeneration and neuroinflammation have been investigated in memory clinic cohorts, but less is known about their role in community-dwelling subjects.ObjectiveTo investigate baseline cerebrospinal fluid (CSF) levels of neurogranin and YKL-40 in community-dwelling subjects with mild cognitive impairment (MCI) who had not yet sought help for their cognitive decline.MethodsWe recruited and characterized 107 subjects, who at the clinical baseline examination were found to have MCI.