The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.
Reduced dopamine-beta-hydroxylase activity in Alzheimer's disease
Open accessAbstract
The activity of the noradrenergic marker enzyme dopamine-beta-hydroxylase was measured in brains removed postmortem from control patients and patients with Alzheimer's disease. Enzyme activity was decreased in the frontal and temporal cortices and hippocampus in patients with Alzheimer's disease, but was within the normal range in patients with depression, multiinfarct dementia, and terminal coma. The decrease in enzyme activity in Alzheimer's disease may reflect an abnormality of cortical noradrenergic fibres in some patients with the disease.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Observations on the brains of demented old people
Tomlinson, B. E., Blessed, G., & Roth, M. (1970) · Journal of the Neurological Sciences · doi:10.1016/0022-510x(70)90063-8 · Cited by 2,084
Self-citation
Cited by
Bartus, R. T. (2000) · Experimental Neurology · doi:10.1006/exnr.2000.7397 · Cited by 829
Katzman, R. (1986) · New England Journal of Medicine · doi:10.1056/nejm198604103141506 · Cited by 801
Neurochemical characteristics of early and late onset types of Alzheimer's disease.
Rossor, M. N., Iversen, L. L., Reynolds, G. P., Mountjoy, C. Q., & Roth, M. (1984) · BMJ · doi:10.1136/bmj.288.6422.961 · Cited by 417
The neurobiologie consequences of down syndrome
Coyle, J. T., Oster-Granite, M. L., & Gearhart, J. D. (1986) · Brain Research Bulletin · doi:10.1016/0361-9230(86)90074-2 · Cited by 248
Neuron loss in key cholinergic and aminergic nuclei in Alzheimer disease: a meta-analysis
Lyness, S. (2003) · Neurobiology of Aging · doi:10.1016/s0197-4580(02)00057-x · Cited by 240
Metadata
- Authors
- Cross, A. J., Crow, T. J., Perry, E. K., Perry, R. H., Blessed, G., & Tomlinson, B. E.
- Venue
- BMJ
- Publisher
- BMJ
- Published
- 1981-01-10
- Volume
- 282
- Issue
- 6258
- Pages
- 93-94
- ISSN
- 0007-1447 (ISSN-L)
- 0267-0623
- 1468-5833
- OpenAlex
- W1971794055
- Cited by
- 267
- References
- 1
- FWCI
- 21.78
- Type
- journal article
- Language
- en
- Open access
- bronze
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Reduced dopamine-beta-hydroxylase activity in Alzheimer's disease. https://app.cochat.ai/papers/10.1136/bmj.282.6258.93
- The paper
- Cross, A. J., Crow, T. J., Perry, E. K., Perry, R. H., Blessed, G., & Tomlinson, B. E. (1981). Reduced dopamine-beta-hydroxylase activity in Alzheimer's disease. BMJ. https://doi.org/10.1136/bmj.282.6258.93
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.