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Cited by 536

The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.

Evidence for a membrane defect in Alzheimer disease brain.

Open access
Nitsch, R M, Blusztajn, J K, Pittas, A G, Slack, B E, Growdon, J H, Wurtman, R J·1992·Proceedings of the National Academy of Sciences

Abstract

To determine whether neurodegeneration in Alzheimer disease brain is associated with degradation of structural cell membrane molecules, we measured tissue levels of the major membrane phospholipids and their metabolites in three cortical areas from postmortem brains of Alzheimer disease patients and matched controls. Among phospholipids, there was a significant (P less than 0.05) decrease in phosphatidylcholine and phosphatidylethanolamine. There were significant (P less than 0.05) decreases in the initial phospholipid precursors choline and ethanolamine and increases in the phospholipid deacylation product glycerophosphocholine. The ratios of glycerophosphocholine to choline and glycerophosphoethanolamine to ethanolamine were significantly increased in all examined Alzheimer disease brain regions. The activity of the glycerophosphocholine-degrading enzyme glycerophosphocholine choline-phosphodiesterase was normal in Alzheimer disease brain. There was a near stoichiometric relationship between the decrease in phospholipids and the increase of phospholipid catabolites. These data are consistent with increased membrane phospholipid degradation in Alzheimer disease brain. Similar phospholipid abnormalities were not detected in brains of patients with Huntington disease, Parkinson disease, or Down syndrome. We conclude that the phospholipid abnormalities described here are not an epiphenomenon of neurodegeneration and that they may be specific for the pathomechanism of Alzheimer disease.

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Metadata

Authors
Nitsch, R. M., Blusztajn, J. K., Pittas, A. G., Slack, B. E., Growdon, J. H., & Wurtman, R. J.
Venue
Proceedings of the National Academy of Sciences
Published
1992-03
Volume
89
Issue
5
Pages
1671-1675
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1995954863
Cited by
536
References
28
FWCI
14.01
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Evidence for a membrane defect in Alzheimer disease brain. https://app.cochat.ai/papers/10.1073/pnas.89.5.1671
The paper
Nitsch, R. M., Blusztajn, J. K., Pittas, A. G., Slack, B. E., Growdon, J. H., & Wurtman, R. J. (1992). Evidence for a membrane defect in Alzheimer disease brain. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.89.5.1671

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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