Evidence map›Paper›PMID 19500376›Full record

ArticleMolecular neurodegeneration2009

Oxidative modifications, mitochondrial dysfunction, and impaired protein degradation in Parkinson's disease: how neurons are lost in the Bermuda triangle.

Kristen A Malkus, Elpida Tsika, Harry Ischiropoulos

Open access · goldAbstract read
In one paragraph

Article in Molecular neurodegeneration, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 68 papers.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed
9.3field-weighted citation impact, top 2% 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

68 citing papers in PubMed, 142 citations in OpenAlex.

  1. Article
  2. Oxidative Stress andInternational journal of molecular sciences · 2026
    Review
  3. Article
  4. Article
  5. α-Synuclein Pathology Spreads in a Midbrain-Hindbrain Assembloid Model.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  6. Genetic mutations in kinases: a comprehensive review on marketed inhibitors and unexplored targets in Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Review
  7. Review
  8. Review
  9. Neuroprotective potential of Afzelin: A novel approach for alleviating catalepsy and modulating Bcl-2 expression in Parkinson's disease therapy.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2024
    Article
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  11. Review
  12. Review
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  20. Review

8 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

3 authors at 2 institutions in 2 countries.

Kristen A MalkusThe Joseph Stokes Jr Research Institute, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA. ischirop@mail.med.upenn.edu.
Elpida Tsika
Harry Ischiropoulos
Children's Hospital of Philadelphia · USUniversity of Pennsylvania · US

Funding

Translational Research Support CoreP30ES013508 · NIEHS · UNIVERSITY OF PENNSYLVANIA · PI Rebecca A Simmons · 2006 to 2026
$35.3M
PEROXYNITRITE IN NEURODEGENERATIVE DISEASES OF AGINGR01AG013966 · NIA · UNIVERSITY OF PENNSYLVANIA · PI ISCHIROPOULOS, HARRY · 1997 to 2014
$4.4M
NIA NIH HHS R01 AG013966NIEHS NIH HHS P30 ES013508
6 · The paper itself

Abstract

While numerous hypotheses have been proposed to explain the molecular mechanisms underlying the pathogenesis of neurodegenerative diseases, the theory of oxidative stress has received considerable support. Although many correlations have been established and encouraging evidence has been obtained, conclusive proof of causation for the oxidative stress hypothesis is lacking and potential cures have not emerged. Therefore it is likely that other factors, possibly in coordination with oxidative stress, contribute to neuron death. Using Parkinson's disease (PD) as the paradigm, this review explores the hypothesis that oxidative modifications, mitochondrial functional disruption, and impairment of protein degradation constitute three interrelated molecular pathways that execute neuron death. These intertwined events are the consequence of environmental exposure, genetic factors, and endogenous risks and constitute a "Bermuda triangle" that may be considered the underlying cause of neurodegenerative pathogenesis.

Identifiers

PMID19500376
PMCPMC2701947
OpenAlexW2161639623

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

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.