Evidence map›Paper›PMID 24462621›Full record

ArticleNeuropharmacology2014

Tolfenamic acid downregulates BACE1 and protects against lead-induced upregulation of Alzheimer's disease related biomarkers.

Lina Adwan, Gehad M Subaiea, Nasser H Zawia

Abstract read
In one paragraph

Article in Neuropharmacology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-weighted citation impact, top 12% 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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 45 citations in OpenAlex.

  1. Review
  2. Analysis of Tolfenamic Acid using a Simple, Rapid, and Stability-indicating Validated HPLC Method.Anti-inflammatory & anti-allergy agents in medicinal chemistry · 2024
    Article
  3. Review
  4. Microglia as a cellular target of diclofenac therapy in Alzheimer's disease.Therapeutic advances in neurological disorders · 2023
    Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. PeerJ · 2019
    Article
  12. Article
  13. Article
  14. Article
  15. Inflammasomes as therapeutic targets for Alzheimer's disease.Brain pathology (Zurich, Switzerland) · 2017
    Review
  16. Article
  17. Review
  18. Article
  19. Article
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

3 authors at 1 institution in 1 country.

Lina AdwanDepartment of Biomedical & Pharmaceutical Sciences, University of Rhode Island, Kingston, RI, USA.
Gehad M SubaieaDepartment of Biomedical & Pharmaceutical Sciences, University of Rhode Island, Kingston, RI, USA.
Nasser H ZawiaDepartment of Biomedical & Pharmaceutical Sciences, University of Rhode Island, Kingston, RI, USA; Interdisciplinary Neuroscience Program, University of Rhode Island, Kingston, RI, USA. Electronic address: nzawia@uri.edu.
University of Rhode Island · US

Funding

Training CoreP20GM103430 · NIGMS · UNIVERSITY OF RHODE ISLAND · PI Bongsup P Cho · 2012 to 2026
$63.6M
UNDERGRADUATE RESEARCH AND SEMINARSP20RR016457 · NCRR · UNIVERSITY OF RHODE ISLAND · PI SHAKARIAN, ALISON M · 2001 to 2011
$35.5M
Occupational exposure and the developmental-basis of ADR01ES015867 · NIEHS · UNIVERSITY OF RHODE ISLAND · PI ZAWIA, NASSER HUSSEIN · 2009 to 2012
$1.2M
A novel therapeutic approach to lowering tau and its impact on tauopathiesR21AG042695 · NIA · UNIVERSITY OF RHODE ISLAND · PI ZAWIA, NASSER HUSSEIN · 2013 to 2014
$408k
Occupational exposure and the developmental-basis of ADR56ES015867 · NIEHS · UNIVERSITY OF RHODE ISLAND · PI ZAWIA, NASSER HUSSEIN · 2008 to 2008
$186k
Neonatal exposure &neurodegeneration of the aged brainR03AG027246 · NIA · UNIVERSITY OF RHODE ISLAND · PI ZAWIA, NASSER HUSSEIN · 2005 to 2006
$121k
Intramural NIH HHSNCRR NIH HHS P20 RR016457NIA NIH HHS AG042695NIA NIH HHS R03 AG027246NIA NIH HHS R21 AG042695NIEHS NIH HHS ES015867NIEHS NIH HHS R01 ES015867NIEHS NIH HHS R56 ES015867NIGMS NIH HHS 8 P20 GM103430-12NIGMS NIH HHS P20 GM103430
6 · The paper itself

Abstract

Environmental exposure to lead (Pb) early in life results in a latent upregulation of genes and products associated with Alzheimer's disease (AD), particularly the plaque forming protein amyloid beta (Aβ). Furthermore, animals exposed to Pb as infants develop cognitive decline and memory impairments in old age. Studies from our lab demonstrated that tolfenamic acid lowers the levels of the amyloid β precursor protein (APP) and its aggregative cleavage product Aβ by inducing the degradation of the transcription factor specificity protein 1 (Sp1). These changes were accompanied by cognitive improvement in transgenic APP knock-in mice. In this study, we examined the effects of tolfenamic acid on beta site APP cleaving enzyme 1 (BACE1) which is responsible for Aβ production and tested its ability to reverse Pb-induced upregulation in the amyloidogenic pathway. Mice were administered tolfenamic acid for one month and BACE1 gene expression as well as its enzymatic activity were analyzed in the cerebral cortex. Tolfenamic acid was also tested for its ability to reverse changes in Sp1, APP and Aβ that were upregulated by Pb in vitro. Differentiated SH-SY5Y neuroblastoma cells were either left unexposed, or sequentially exposed to Pb followed by tolfenamic acid. Our results show that tolfenamic acid reduced BACE1 gene expression and enzyme activity in mice. In neuroblastoma cells, Pb upregulated Sp1, APP and Aβ, while tolfenamic acid lowered their expression. These results along with previous data from our lab provide evidence that tolfenamic acid, a drug that has been used for decades for migraine, represents a candidate which can reduce the pathology of AD and may mitigate the damage of environmental risk factors associated with this disease.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesAnimalsAspartic Acid EndopeptidasesBiomarkersCell Line, TumorCell SurvivalCerebral CortexFemaleHumansLeadLead Poisoning, Nervous SystemMiceMice, TransgenicAmyloid beta-PeptidesAmyloid beta-Protein PrecursorAmyloid Precursor Protein SecretasesAPP protein, humanAspartic Acid EndopeptidasesBACE1 protein, humanBace1 protein, mouseBiomarkersLeadNeuroprotective Agentsortho-AminobenzoatesSp1 Transcription Factortolfenamic acidAlzheimer's diseaseAmyloid betaBACE1PbSp1Tolfenamic acid

Identifiers

PMID24462621
PMCPMC7057722
OpenAlexW2017178741

What OpenQuestion holds

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Registered trials

None linked

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.