Cited by 187Alzheimer's disease research and treatmentsNeuroinflammation and Neurodegeneration MechanismsEstrogen and related hormone effects

Estradiol or genistein prevent Alzheimer's disease-associated inflammation correlating with an increase PPARγ expression in cultured astrocytes

Valles, Soraya L., Dolz-Gaiton, Pablo, Gambini, Juan, Borras, Consuelo, LLoret, Ana, Pallardo, Federico V., Viña, Jose·2010·Brain Research

Abstract

Inflammation has been implicated in neurodegenerative disorders such as Alzheimer's disease (AD). The main inflammatory players in AD are the glial cells which initiate the inflammatory response. One of the earliest neuropathological changes in AD is the accumulation of astrocytes at sites of A beta deposition. It is desirable to find methods of tipping the balance towards anti-inflammatory state. Estrogenic compounds have shown anti-inflammatory and also antioxidant activity. Astrocytes were pretreated with 17-beta estradiol or with genistein, and 48 h later treated with 5 microM amyloid beta (A beta) for 24 h. We found that A beta induces inflammatory mediators, such as cyclooxygenase 2 (COX-2), inducible nitric oxide synthase (iNOS), interleukin 1 beta (IL-1 beta) and tumor necrosis factor alpha (TNF-alpha). All these effects were prevented when cells were pretreated with estradiol or genistein, demonstrating anti-inflammatory effects of estradiol or genistein in astrocytes in primary culture. The A beta-stimulated expression of pro-inflammatory genes in cells is antagonized by the action of the PPARs (peroxisome proliferator activated receptors). Here we detected an increase in PPAR-gamma expression in astrocytes in primary culture treated with A beta and estradiol or soy isoflavone genistein. Thus, some of the anti-inflammatory effects of estrogenic compounds may be mediated and activated by PPARs suppressing a diverse array of inflammatory responses caused by A beta in astrocytes in primary culture.

Integrity signals

Registry

Crossref · 10.1016/j.brainres.2009.11.044

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Valles, S. L., Dolz-Gaiton, P., Gambini, J., Borras, C., LLoret, A., Pallardo, F. V., & Viña, J.
Affiliations
Universitat de València (ES)
Venue
Brain Research
Publisher
Elsevier BV
Published
2010-02
Volume
1312
Pages
138-144
ISSN
0006-8993 (ISSN-L)
OpenAlex
W2069905837
Cited by
186
References
45
Citations by year
2026: 4 · 2025: 2 · 2024: 10 · 2023: 11 · 2022: 16 · 2021: 14 · 2020: 14 · 2019: 10 · 2018: 11 · 2017: 9 · 2016: 13 · 2015: 9 · 2014: 15 · 2013: 11 · 2012: 18
FWCI
7.95
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
local and national government of Spain (GVcs2007-AP-001, BFU 2005/230, BFU 2007 6583/BFI)
Topics
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
Alzheimer's disease, astrocytes, estradiol, genistein, amyloid-beta, neuroinflammation, PPARγ, estrogenic compounds, cyclooxygenase-2, inducible nitric oxide synthase, IL-1β, TNF-α, soy isoflavones, anti-inflammatory activity
MeSH terms
Animals, Astrocytes, Cells, Cultured, Cerebral Cortex, Dose-Response Relationship, Drug, Drug Interactions, Enzyme-Linked Immunosorbent Assay, Estradiol, Estrogens, Gene Expression Regulation, Peptide Fragments, Tumor Necrosis Factor-alpha, Amyloid beta-Peptides, Genistein, Protein Kinase Inhibitors, PPAR gamma, Rats, Cyclooxygenase 2, Nitric Oxide Synthase Type II, Interleukin-1beta

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