Evidence map›Paper›PMID 22773138›Full record

ArticleMolecular neurobiology2012

Tauroursodeoxycholic acid prevents MPTP-induced dopaminergic cell death in a mouse model of Parkinson's disease.

M Castro-Caldas, A Neves Carvalho, E Rodrigues, C J Henderson, C R Wolf, C M P Rodrigues, M J Gama

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in Molecular neurobiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03840005 (A Phase II, Placebo Controlled, Double Blind, Randomised Clinical Trial To Assess The Safety And Tolerability Of 30mg/kg Daily Ursodeoxycholic Acid), 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
4.1field-weighted citation impact, top 6% 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.

NCT03840005 phase2completednot on this mapstarted 2018, after this paper: background citation

A Phase II, Placebo Controlled, Double Blind, Randomised Clinical Trial To Assess The Safety And Tolerability Of 30mg/kg Daily Ursodeoxycholic Acid (UDCA) In Patients With Parkinson's Disease (PD)

TypeinterventionalSponsorSheffield Teaching Hospitals NHS Foundation TrustRan2018 to 2021Enrolled31ConditionsParkinson's DiseaseArmsUrsonorm
3 · Its place in the literature

Who cites it

84 citing papers in PubMed, 1 synthesis or guideline pooled it, 152 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. A Double-Blind, Randomized, Placebo-Controlled Trial of Ursodeoxycholic Acid (UDCA) in Parkinson's Disease.Movement disorders : official journal of the Movement Disorder Society · 2023
    Trial
  4. Trial
  5. Article
  6. Review
  7. Review
  8. Neuroprotection in Parkinson Disease.Neurology and therapy · 2025
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Review
  20. Research progress on intranasal treatment for Parkinson's disease.Neuroprotection (Chichester, England) · 2024
    Review

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

7 authors at 4 institutions in 2 countries.

M Castro-CaldasResearch Institute for Medicines and Pharmaceutical Sciences, University of Lisbon, Av. Prof. Gama Pinto, 1649-003 Lisbon, Portugal.
A Neves Carvalho
E Rodrigues
C J Henderson
C R Wolf
C M P Rodrigues
M J Gama
University of Lisbon · PTNinewells Hospital · GBAssociation for Innovation and Biomedical Research on Light and Image · PTUniversidade Nova de Lisboa · PT

Funding

Cancer Research UK 10822
6 · The paper itself

Abstract

Mitochondrial dysfunction and oxidative stress are implicated in the neurodegenerative process in Parkinson's disease (PD). Moreover, c-Jun N-terminal kinase (JNK) plays an important role in dopaminergic neuronal death in substantia nigra pars compacta. Tauroursodeoxycholic acid (TUDCA) acts as a mitochondrial stabilizer and anti-apoptotic agent in several models of neurodegenerative diseases. Here, we investigated the role of TUDCA in preventing 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced neurodegeneration in a mouse model of PD. We evaluated whether TUDCA modulates MPTP-induced degeneration of dopaminergic neurons in the nigrostriatal axis, and if that can be explained by regulation of JNK phosphorylation, reactive oxygen species (ROS) production, glutathione S-transferase (GST) catalytic activation, and Akt signaling, using C57BL/6 glutathione S-transferase pi (GSTP) null mice. TUDCA efficiently protected against MPTP-induced dopaminergic degeneration. We have previously demonstrated that exacerbated JNK activation in GSTP null mice resulted in increased susceptibility to MPTP neurotoxicity. Interestingly, pre-treatment with TUDCA prevented MPTP-induced JNK phosphorylation in mouse midbrain and striatum. Moreover, the anti-oxidative role of TUDCA was demonstrated in vivo by impairment of ROS production in the presence of MPTP. Finally, results herein suggest that the survival pathway activated by TUDCA involves Akt signaling, including downstream Bad phosphorylation and NF-κB activation. We conclude that TUDCA is neuroprotective in an in vivo model of PD, acting mainly by modulation of JNK activity and cellular redox thresholds, together with activation of the Akt pro-survival pathway. These results open new perspectives for the pharmacological use of TUDCA, as a modulator of neurodegeneration in PD.

Indexed as

1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridineAnimalsbcl-Associated Death ProteinCell DeathDisease Models, AnimalDopaminergic NeuronsHSP27 Heat-Shock ProteinsI-kappa B ProteinsIntracellular SpaceJNK Mitogen-Activated Protein KinasesMiceMice, Inbred C57BLMice, KnockoutNerve DegenerationNeuroprotective AgentsNF-kappa B1-Methyl-4-phenyl-1,2,3,6-tetrahydropyridinebcl-Associated Death ProteinHSP27 Heat-Shock ProteinsI-kappa B ProteinsJNK Mitogen-Activated Protein KinasesNeuroprotective AgentsNF-kappa BNF-KappaB Inhibitor alphaNfkbia protein, mouseReactive Oxygen SpeciesTaurochenodeoxycholic Acidursodoxicoltaurine

Identifiers

PMID22773138
OpenAlexW2034424279

What OpenQuestion holds

Textmetadata
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.