Evidence map›Paper›PMID 22527997›Full record

ArticleMetabolic brain disease2012

Effect of maternal separation on mitochondrial function and role of exercise in a rat model of Parkinson's disease.

Sharief Hendricks, Edward Ojuka, Lauriston A Kellaway, Musa V Mabandla, Vivienne A Russell

Open access · hybridAbstract read
In one paragraph

Article in Metabolic brain disease, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
0.5field-weighted citation impact, top 33% 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

8 citing papers in PubMed, 14 citations in OpenAlex.

  1. Article
  2. Article
  3. Early Life Stress AffectsInternational journal of molecular sciences · 2022
    Review
  4. Article
  5. Review
  6. Aerobic Exercise Training Alleviates Renal Injury by Interfering with Mitochondrial Function in Type-1 Diabetic Mice.Medical science monitor : international medical journal of experimental and clinical research · 2018
    Article
  7. Article
  8. 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

5 authors at 3 institutions in 1 country.

Sharief HendricksMRC/UCT Exercise Science and Sports Medicine Research Unit, Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa. sharief.hendricks@uct.ac.za
Edward Ojuka
Lauriston A Kellaway
Musa V Mabandla
Vivienne A Russell
Sports Science Institute of South Africa · ZAUniversity of Cape Town · ZAUniversity of KwaZulu-Natal · ZA

Funding

Development Stress, Exercise, and Vulnerability to Neuronal InjuryR01TW008040 · FIC · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ZIGMOND, MICHAEL J · 2007 to 2010
$800k
FIC NIH HHS R01 TW008040FIC NIH HHS R01TW008040
6 · The paper itself

Abstract

Early life stress, such as maternal separation, causes adaptive changes in neural mechanisms that have adverse effects on the neuroplasticity of the brain in adulthood. As a consequence, children who are exposed to stress during development may be predisposed to neurodegenerative disorders in adulthood. A possible mechanism for increased vulnerability to neurodegeneration may be dysfunctional mitochondria. Protection from neurotoxins, such as 6-hydroxydopamine (6-OHDA), has been observed following voluntary exercise. The mechanism of this neuroprotection is not understood and mitochondria may play a role. The purpose of this study was to determine the effects of maternal separation and exercise on mitochondrial function in a rat model of Parkinson's disease. Maternally separated (pups separated from the dam for 3 h per day from postnatal day (P) 2-14) and non-separated rats were placed in individual cages with or without attached running wheels for 1 week prior to unilateral infusion of 6-OHDA (5 μg/4 μl, 0.5 μl/min) into the left medial forebrain bundle at P60. After 2 h recovery, rats were returned to their cages and wheel revolutions recorded for a further 2 weeks. On P72, the rats' motor function was assessed using the forelimb akinesia test. On P74, rats were sacrificed for measurement of mitochondrial function. Exercise increased the respiratory control index (RCI) in the non-lesioned hemisphere of 6-OHDA-lesioned rats. This effect was evident in the striatum of non-separated rats and the prefrontal cortex of maternally separated rats. These results suggest that early life stress may reduce the adaptive response to exercise in the striatum, a major target of dopamine neurons, but not the prefrontal cortex in this model of Parkinson's disease.

Indexed as

Maternal DeprivationAnimalsBrain Diseases, MetabolicCorpus StriatumDisease Models, AnimalFemaleMaleMitochondrial DiseasesParkinsonian DisordersPhysical Conditioning, AnimalRatsRats, Sprague-DawleyStress, Psychological

Identifiers

PMID22527997
PMCPMC3402666
OpenAlexW2006783794

What OpenQuestion holds

Textmetadata
LicenceTDM
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.