Evidence map›Paper›PMID 23200460›Full record

ArticleNeurobiology of aging2013

Adenosine monophosphate-activated protein kinase overactivation leads to accumulation of α-synuclein oligomers and decrease of neurites.

Peizhou Jiang, Ming Gan, Abdul Shukkur Ebrahim, Monica Castanedes-Casey, Dennis W Dickson, Shu-Hui C Yen

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 2 pooled it
3.5field-weighted citation impact, top 8% 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

54 citing papers in PubMed, 2 syntheses or guidelines pooled it, 93 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Exploring the impacts of type 2 diabetes and metformin use on Parkinson's disease: Mendelian randomization analysis and a national cohort study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Article
  6. Brain-muscle axis regulation of neuroinflammation and sarcopenia in Parkinson's disease: the bridging role of lactylation.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
    Review
  7. Article
  8. Review
  9. CK and LRRK2 Involvement in Neurodegenerative Diseases.International journal of molecular sciences · 2024
    Review
  10. Metformin role in Parkinson's disease: a double-sword effect.Molecular and cellular biochemistry · 2024
    Review
  11. NADJournal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
    Article
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  13. Review
  14. Article
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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

6 authors at 2 institutions in 1 country.

Peizhou JiangDepartment of Neuroscience, Mayo Clinic College of Medicine, Jacksonville, FL 32224, USA.
Ming Gan
Abdul Shukkur Ebrahim
Monica Castanedes-Casey
Dennis W Dickson
Shu-Hui C Yen
Jacksonville College · USMayo Clinic in Florida · US

Funding

Genetics and Molecular Biology of ParkinsonismP50NS040256 · NINDS · MAYO CLINIC JACKSONVILLE · PI DICKSON, DENNIS WILLIAM · 2004 to 2009
$8.9M
NINDS NIH HHS P50 NS040256NINDS NIH HHS P50-NS40256
6 · The paper itself

Abstract

Neuronal inclusions of α-synuclein (α-syn), termed Lewy bodies, are a hallmark of Parkinson disease (PD). Increased α-syn levels can occur in brains of aging human and neurotoxin-treated mice. Because previous studies have shown increased brain lactate levels in aging brains, in PD affected subjects when compared with age-matched controls, and in mice treated with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine(MPTP), we tested the effects of lactate exposure on α-syn in a cell-based study. We demonstrated that (1) lactate treatment led to α-syn accumulation and oligomerization in a time- and concentration-dependent manner; (2) such alterations were mediated via adenosine monophosphate-activated protein kinase (AMPK) and associated with increasing cytoplasmic phosphorylated AMPK levels; (3) AMPK activation facilitated α-syn accumulation and phosphorylation; (4) lactate treatment or overexpression of the active form of AMPK decreased α-syn turnover and neurite outgrowth; and (5) Lewy body-bearing neurons displayed abnormal cytoplasmic distribution of phosphorylated AMPK, which normally is located in nuclei. Together, our results suggest that chronic neuronal accumulation of α-syn induced by lactate-triggered AMPK activation in aging brains might be a novel mechanism underlying α-synucleinopathies in PD and related disorders.

Indexed as

alpha-SynucleinAMP-Activated Protein Kinase KinasesAnimalsCells, CulturedDimerizationEnzyme ActivationHumansMiceNeuritesProtein KinasesUp-Regulationalpha-SynucleinAMP-Activated Protein Kinase KinasesProtein Kinases

Identifiers

PMID23200460
PMCPMC3570625
OpenAlexW2132684477

What OpenQuestion holds

Textmetadata
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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.