PMID- 1899691 OWN - NLM STAT- MEDLINE DCOM- 19910315 LR - 20190630 IS - 0022-3042 (Print) IS - 0022-3042 (Linking) VI - 56 IP - 3 DP - 1991 Mar TI - Analysis and quantitation of the beta-amyloid precursor protein in the cerebrospinal fluid of Alzheimer's disease patients with a monoclonal antibody-based immunoassay. PG - 1037-42 AB - One of the major clinical findings in Alzheimer's disease (AD) is the formation of deposits of beta-amyloid protein in amyloid plaques, derived from the beta-amyloid precursor protein (beta-APP). To determine the possible use of beta-APP as a diagnostic marker for AD in CSF, a monoclonal antibody-based immunoassay specific for this protein was developed. The assay does not differentiate between beta-APP695 and beta-APP751 forms but does preferentially recognize beta-APP751 complexed with a protease. Of the two sets of CSF samples tested, one set, obtained from living patients, gave a slightly lower level of beta-APP in AD and Parkinson's disease patients relative to controls, whereas the other set, composed of postmortem samples, showed no significant differences between the AD and control groups. FAU - Henriksson, T AU - Henriksson T AD - Athena Neurosciences, Inc., South San Francisco, California 94080. FAU - Barbour, R M AU - Barbour RM FAU - Braa, S AU - Braa S FAU - Ward, P AU - Ward P FAU - Fritz, L C AU - Fritz LC FAU - Johnson-Wood, K AU - Johnson-Wood K FAU - Chung, H D AU - Chung HD FAU - Burke, W AU - Burke W FAU - Reinikainen, K J AU - Reinikainen KJ FAU - Riekkinen, P AU - Riekkinen P AU - et al. LA - eng PT - Journal Article PL - England TA - J Neurochem JT - Journal of neurochemistry JID - 2985190R RN - 0 (Amyloid beta-Peptides) RN - 0 (Amyloid beta-Protein Precursor) RN - 0 (Antibodies, Monoclonal) RN - 0 (Protein Precursors) SB - IM MH - Alzheimer Disease/*cerebrospinal fluid MH - Amyloid beta-Peptides/*cerebrospinal fluid MH - Amyloid beta-Protein Precursor MH - *Antibodies, Monoclonal MH - Enzyme-Linked Immunosorbent Assay/*methods MH - Humans MH - Protein Precursors/*cerebrospinal fluid MH - Reference Values EDAT- 1991/03/01 00:00 MHDA- 1991/03/01 00:01 CRDT- 1991/03/01 00:00 PHST- 1991/03/01 00:00 [pubmed] PHST- 1991/03/01 00:01 [medline] PHST- 1991/03/01 00:00 [entrez] AID - 10.1111/j.1471-4159.1991.tb02026.x [doi] PST - ppublish SO - J Neurochem. 1991 Mar;56(3):1037-42. doi: 10.1111/j.1471-4159.1991.tb02026.x.