Evidence map›Paper›PMID 22387883›Full record

ArticleBiochimica et biophysica acta2012

Dynamin-related protein 1 heterozygote knockout mice do not have synaptic and mitochondrial deficiencies.

Maria Manczak, Hiromi Sesaki, Yusuke Kageyama, P Hemachandra Reddy

Abstract read
In one paragraph

Article in Biochimica et biophysica acta, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

38 citing papers in PubMed, 74 citations in OpenAlex.

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  15. Article
  16. Defective mitophagy in Alzheimer's disease.Ageing research reviews · 2020
    Review
  17. Review
  18. Article
  19. Mitochondrial Function and Dysfunction in Dilated Cardiomyopathy.Frontiers in cell and developmental biology · 2020
    Review
  20. Review
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

4 authors at 2 institutions in 1 country.

Maria ManczakNeurogenetics Laboratory, Neuroscience Division, Oregon National Primate Research Center, Oregon Health & Science University, 505 NW 185th Avenue, Beaverton, OR 97006, USA.
Hiromi Sesaki
Yusuke Kageyama
P Hemachandra Reddy
Johns Hopkins University · USOregon National Primate Research Center · US

Funding

YR 50 PROJ- ROBERTS PRIMATE ISLETP51RR000163 · NCRR · OREGON REGIONAL PRIMATE RESEARCH CENTER · PI FRUH, KLAUS J · 1985 to 2011
$140.8M
Mitochondrial Fusion and DivisionR01GM089853 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI SESAKI, HIROMI · 2010 to 2014
$2.1M
Abeta Toxicity, ROS and Mitochondrial Dysfunction in Aging/Alzheimer's DiseaseR01AG028072 · NIA · OREGON HEALTH & SCIENCE UNIVERSITY · PI REDDY, P. HEMACHANDRA · 2007 to 2011
$1.5M
REPRODUCTIVE STEROIDS AND EXPERIMENTAL STROKEK01RR000163 · NCRR · OREGON HEALTH AND SCIENCE UNIVERSITY · PI MURPHY, STEPHANIE J · 2000 to 2004
$479k
NCRR NIH HHS K01 RR000163NCRR NIH HHS P51 RR000163NCRR NIH HHS RR000163NIA NIH HHS AG028072NIA NIH HHS R01 AG028072NIGMS NIH HHS GM089853NIGMS NIH HHS R01 GM089853
6 · The paper itself

Abstract

The objective of this study was to elucidate the effect of partial reduction of the mitochondrial fission protein, dynamin-related protein 1 (Drp1) on mitochondrial activity and synaptic viability. Recent knockout studies of Drp1 revealed that homozygote Drp1 knockout mice are embryonic lethal due to reduced mitochondrial fission, and that this reduced fission leads to developmental defects in the brain. In contrast, heterozygote Drp1 knockout mice appear to be normal in terms of lifespan, fertility, and viability, and phenotypically these animals are not different from wild-type mice. However, the effects of partial Drp1 reduction on mitochondrial function and synaptic activity are not well understood. In the present study, we sought to characterize synaptic, dendritic and mitochondrial proteins, and mitochondrial function and GTPase enzymatic activity, in Drp1 heterozygote knockout mice. Interestingly, we found no significant changes in synaptic, dendritic, and mitochondrial proteins in the Drp1 heterozygote knockout mice compared to the wild-type mice. Further, mitochondrial function and GTPase enzymatic activity appeared to be normal. However, H(2)O(2) and lipid peroxidation levels were significantly reduced in the Drp1 heterozygote knockout mice compared to the wild-type mice. These findings suggest that partial Drp1 reduction does not affect mitochondrial and synaptic viability and may have therapeutic use in treating patients with Alzheimer's disease and Huntington's disease.

Indexed as

Oxidative StressAnimalsBrainCells, CulturedDynaminsElectron Transport Complex IVGTP PhosphohydrolasesHydrogen PeroxideLipid PeroxidesMiceMice, KnockoutMitochondriaMitochondrial ProteinsSynapsesDnm1l protein, mouseDynaminsElectron Transport Complex IVGTP PhosphohydrolasesHydrogen PeroxideLipid PeroxidesMitochondrial Proteins

Identifiers

PMID22387883
PMCPMC3338881
OpenAlexW2093831424

What OpenQuestion holds

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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.