APOM and early-onset autosomal dominant Alzheimer disease: Studies of the cerebrospinal fluid (CSF) from patients with neurodegenerative disorders detected the differential expression of matrix Gla protein precursor, haptoglobin precursor in Alzheimer’s disease, APOM and DBP precursor in Parkinson’s disease, and nucleobindin-1 precursor in dementia with Lewy body30.