PMID- 8025536 OWN - NLM STAT- MEDLINE DCOM- 19940810 LR - 20190830 IS - 0197-0186 (Print) IS - 0197-0186 (Linking) VI - 24 IP - 3 DP - 1994 Mar TI - Accumulation of a 50 kDa N-terminal fragment of beta-APP695 in Alzheimer's disease hippocampus and neocortex. PG - 281-8 AB - Proteolytic processing of beta-amyloid precursor protein (beta-APP) is a key event in the formation of beta-amyloid deposits in Alzheimer's disease (AD) brains and is likely to be accompanied by the accumulation of cleavage products other than the beta/A4 protein. Using a beta-APP695-specific monoclonal antibody in quantitative immunoblotting, a 50 kDa N-terminal fragment of beta-APP695 was detected in neocortex, hippocampus and cerebellum of AD patients and control individuals. The mean level of this fragment was higher in AD hippocampus and neocortex as compared to controls, suggesting that beta-APP695 fragments are generated in various brain regions but that the proteolytic processing is increased in pathologically affected brain areas. FAU - Loffler, J AU - Loffler J AD - Pharma Division, Preclinical Research, F. Hoffmann-La Roche Ltd., Basel, Switzerland. FAU - Langui, D AU - Langui D FAU - Probst, A AU - Probst A FAU - Huber, G AU - Huber G LA - eng PT - Journal Article PL - England TA - Neurochem Int JT - Neurochemistry international JID - 8006959 RN - 0 (Amyloid beta-Protein Precursor) RN - 0 (Antibodies, Monoclonal) RN - 0 (Peptide Fragments) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Alzheimer Disease/*metabolism MH - Amyloid beta-Protein Precursor/*metabolism MH - Antibodies, Monoclonal MH - Cerebral Cortex/*metabolism MH - Female MH - Hippocampus/*metabolism MH - Humans MH - Immunoblotting MH - Male MH - Peptide Fragments/*metabolism EDAT- 1994/03/01 00:00 MHDA- 1994/03/01 00:01 CRDT- 1994/03/01 00:00 PHST- 1994/03/01 00:00 [pubmed] PHST- 1994/03/01 00:01 [medline] PHST- 1994/03/01 00:00 [entrez] AID - 10.1016/0197-0186(94)90086-8 [doi] PST - ppublish SO - Neurochem Int. 1994 Mar;24(3):281-8. doi: 10.1016/0197-0186(94)90086-8.