Student or educator? Sign up with your school email and get 6 months of Pro free.
Cited by 325

The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.

Changes in the levels of cerebral and extracerebral sterols in the brain of patients with Alzheimer's disease

Open access
Heverin, Maura, Bogdanovic, Nenad, Lütjohann, Dieter, Bayer, Thomas, Pikuleva, Irina, Bretillon, Lionel, Diczfalusy, Ulf, Winblad, Bengt, Björkhem, Ingemar·2004·Journal of Lipid Research

Abstract

24S-hydroxycholesterol is a side-chain oxidized oxysterol formed in the brain that is continuously crossing the blood-brain barrier to reach the circulation. There may be an opposite flux of 27-hydroxycholesterol, which is formed to a lower extent in the brain than in most other organs. Here we measured cholesterol, lathosterol, 24S- and 27-hydroxycholesterol, and plant sterols in four different brain areas of deceased Alzheimer's disease (AD) patients and controls. 24S-hydroxycholesterol was decreased and 27-hydroxycholesterol increased in all the brain samples from the AD patients. The difference was statistically significant in four of the eight comparisons. The ratio of 27-hydroxycholesterol to 24S-hydroxycholesterol was significantly increased in all brain areas of the AD patients and also in the brains of aged mice expressing the Swedish Alzheimer mutation APP751. Cholesterol 24S-hydroxylase and 27-hydroxylase protein was not significantly different between AD patients and controls. A high correlation was observed between the levels of 24S-hydroxycholesterol and lathosterol in the frontal cortex of the AD patients but not in the controls. Most probably the high levels of 27-hydroxycholesterol are due to increased influx of this steroid over the blood-brain barrier and the lower levels of 24S-hydroxycholesterol to decreased production. The high correlation between lathosterol and 24-hydroxycholesterol is consistent with a close coupling between synthesis and metabolism of cholesterol in the frontal cortex of the AD brain.

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.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1194/jlr.m300320-jlr200

Cites

8 of 8 references verified0 citation errors · 0 not checkable

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.

A few free checks a day · papers already verified open instantly · results are public

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

Show all 8 references

Cited by

See all 325

Metadata

Authors
Heverin, M., Bogdanovic, N., Lütjohann, D., Bayer, T., Pikuleva, I., Bretillon, L., Diczfalusy, U., Winblad, B., & Björkhem, I.
Venue
Journal of Lipid Research
Publisher
Elsevier BV
Published
2004-01
Volume
45
Issue
1
Pages
186-193
ISSN
0022-2275 (ISSN-L)
OpenAlex
W2017274978
Cited by
325
References
8
FWCI
8.17
Type
journal article
Language
en
Open access
hybrid

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: Changes in the levels of cerebral and extracerebral sterols in the brain of patients with Alzheimer's disease. https://app.cochat.ai/papers/10.1194/jlr.m300320-jlr200
The paper
Heverin, M., Bogdanovic, N., Lütjohann, D., Bayer, T., Pikuleva, I., Bretillon, L., Diczfalusy, U., Winblad, B., & Björkhem, I. (2004). Changes in the levels of cerebral and extracerebral sterols in the brain of patients with Alzheimer's disease. Journal of Lipid Research. https://doi.org/10.1194/jlr.m300320-jlr200

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.