Evidence map›Paper›PMID 21884699›Full record

ArticleExperimental neurology2011

High-mobility group box-1 impairs memory in mice through both toll-like receptor 4 and Receptor for Advanced Glycation End Products.

Andréy Mazarati, Mattia Maroso, Valentina Iori, Annamaria Vezzani, Mirjana Carli

Registry-linked trialAbstract read
In one paragraph

Article in Experimental neurology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07469748 (Development, Validity and Reliability Study of the Health Belief Model Scale Regarding Disability and Abilities in Vestibular Migraine Patients), which is not on this map. Cited by 84 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 1 pooled it
6.2field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07469748 nacompletednot on this mapstarted 2024, after this paper: background citation

Development, Validity and Reliability Study of the Health Belief Model Scale Regarding Disability and Abilities in Vestibular Migraine Patients

TypeinterventionalSponsorIstanbul Aydın UniversityRan2024 to 2026Enrolled213ConditionsVestibular MigraineArmsVestibular Migraine Education / Awareness Session
3 · Its place in the literature

Who cites it

84 citing papers in PubMed, 1 synthesis or guideline pooled it, 181 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Blood-Based Biomarkers for Post-Stroke Cognitive Impairment.Current issues in molecular biology · 2026
    Review
  4. Clinical and biochemical assessments of circulating High Mobility Group Box Protein1 in children with epilepsy: relation to cognitive function and drug responsiveness.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Article
  5. Review
  6. Review
  7. Article
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  12. Review
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  17. Cattle BileFrontiers in pharmacology · 2022
    Article
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  20. Article

24 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Andréy MazaratiDepartment of Pediatrics, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095-1752, USA. mazarati@ucla.edu
Mattia Maroso
Valentina Iori
Annamaria Vezzani
Mirjana Carli
Mario Negri Institute for Pharmacological Research · ITUniversity of California, Los Angeles · US

Funding

Mechanisms of comorbidity between epilepsy and depressionR01NS065783 · NINDS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MAZARATI, ANDREY M · 2010 to 2017
$2.9M
Neurobiological basis of Depression as a Comorbidity in EpilepsyR21MH079933 · NIMH · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MAZARATI, ANDREY M · 2009 to 2010
$443k
NIMH NIH HHS MH079933NIMH NIH HHS R21 MH079933NINDS NIH HHS NS065783NINDS NIH HHS R01 NS065783
6 · The paper itself

Abstract

High-mobility group box-1 (HMGB1) is a nuclear protein with cytokine-type functions upon its extracellular release. HMGB1 activates inflammatory pathways by stimulating multiple receptors, chiefly toll-like receptor 4 (TLR4) and Receptor for Advanced Glycation End Products (RAGE). TLR4 and RAGE activation has been implicated in memory impairments, although the endogenous ligand subserving these effects is unknown. We examined whether HMGB1 induced memory deficits using novel object recognition test, and which of the two receptor pathways was involved in these effects. Non-spatial long-term memory was examined in wild type, TLR4 knockout, and RAGE knockout mice. Recombinant HMGB1 (10μg, intracerebroventricularly, i.c.v.) disrupted memory encoding equipotently in wild type, TLR4 knockout and RAGE knockout animals, but affected neither memory consolidation, nor retrieval. Neither TLR4 knockout nor RAGE knockout mice per se, exhibited memory deficits. Blockade of TLR4 in RAGE knockout mice using Rhodobacter sphaeroides lipopolysaccharide (LPS-Rs; 20 μg, i.c.v.) prevented the detrimental effect of HMGB1 on memory. These data show that elevated brain levels of HMGB1 induce memory abnormalities which may be mediated by either TLR4, or RAGE. This mechanism may contribute to memory deficits under various neurological and psychiatric conditions associated with the increased HMGB1 levels, such as epilepsy, Alzheimer's disease and stroke.

Indexed as

AnimalsBrain DiseasesHMGB1 ProteinLipopolysaccharidesMaleMemory DisordersMiceMice, Inbred C57BLMice, KnockoutReceptor for Advanced Glycation End ProductsReceptors, ImmunologicRecognition, PsychologyRecombinant ProteinsToll-Like Receptor 4HMGB1 ProteinLipopolysaccharidesReceptor for Advanced Glycation End ProductsReceptors, ImmunologicRecombinant ProteinsTlr4 protein, mouseToll-Like Receptor 4

Identifiers

PMID21884699
PMCPMC3202022
OpenAlexW2039813398

What OpenQuestion holds

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Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.