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A high ratio of chromogranin A to synaptin/synaptophysin is a common feature of brains in Alzheimer and Pick disease.

Abstract
Chromogranin A and synaptin/synaptophysin were characterized by immunological methods in human autopsy brain tissue from patients with Alzheimer's and Pick's disease. In immunoblots there was no qualitative difference between the antigens in control and diseased brain, but significant quantitative differences were found. In all Alzheimer cases there was a significantly lower level of synaptin/synaptophysin, whereas chromogranin A was higher in 4 out of 5 cases and in all cases relative to synaptin/synaptophysin. An analogous finding was obtained for Pick's disease. Immunohistologically a consistent staining of neuritic plaques for chromogranin A, but not for secretogranin II was found in Alzheimer cases. In Pick's disease the characteristic Pick bodies showed an analogous specific immunostaining.
AuthorsR Weiler, H Lassmann, P Fischer, K Jellinger, H Winkler
JournalFEBS letters (FEBS Lett) Vol. 263 Issue 2 Pg. 337-9 (Apr 24 1990) ISSN: 0014-5793 [Print] England
PMID2110534 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
Chemical References
  • CHGA protein, human
  • Chromogranin A
  • Chromogranins
  • Membrane Proteins
  • Nerve Tissue Proteins
  • Synaptophysin
  • synaptin
Topics
  • Aged
  • Aged, 80 and over
  • Alzheimer Disease (metabolism)
  • Brain (metabolism)
  • Chromogranin A
  • Chromogranins (metabolism)
  • Dementia (metabolism)
  • Dementia, Multi-Infarct (metabolism)
  • Female
  • Humans
  • Immunoblotting
  • Immunoenzyme Techniques
  • Longitudinal Studies
  • Male
  • Membrane Proteins (metabolism)
  • Middle Aged
  • Nerve Tissue Proteins (metabolism)
  • Synaptophysin

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