Evidence map›Paper›PMID 20399866›Full record

ArticleJournal of structural biology2010

Ion-abrasion scanning electron microscopy reveals distorted liver mitochondrial morphology in murine methylmalonic acidemia.

Gavin E Murphy, Bradley C Lowekamp, Patricia M Zerfas, Randy J Chandler, Rajesh Narasimha, Charles P Venditti, Sriram Subramaniam

Open access · greenAbstract read
In one paragraph

Article in Journal of structural biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

19 citing papers in PubMed, 30 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
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  7. Article
  8. Article
  9. Review
  10. Review
  11. Focused ion beams in biology.Nature methods · 2015
    Review
  12. Article
  13. Review
  14. Analysis of lipid droplets in cardiac muscle.Methods in cell biology · 2013
    Article
  15. Review
  16. Electron tomography of cells.Quarterly reviews of biophysics · 2012
    Review
  17. Article
  18. Review
  19. 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

7 authors at 5 institutions in 1 country.

Gavin E MurphyLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, NIH, Bethesda, MD 20892, USA.
Bradley C Lowekamp
Patricia M Zerfas
Randy J Chandler
Rajesh Narasimha
Charles P Venditti
Sriram Subramaniam
National Cancer Institute · USCenter for Cancer Research · USGeorge Washington University · USNational Human Genome Research Institute · USOffice of Research Services · US

Funding

Investigations of Methylmalonic Acidemia and Related DisordersZIAHG200318 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI VENDITTI, CHARLES P · 2009 to 2025
$29.7M
Technology Development for 3D Electron MicroscopyZIABC010826 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 2009 to 2019
$9.1M
Imaging cellular assemblies with three-dimensional electron microscopyZIABC010278 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 2009 to 2019
$8.0M
Investigations of Methylmalonic Acidemia and Related DisordersZ01HG200318 · NHGRI · NATIONAL HUMAN GENOME RESEARCH INSTITUTE · PI BIESECKER, LESLIE · 2004 to 2008
$1.6M
Imaging cellular assemblies with three-dimensional EMZ01BC010278 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI SUBRAMANIAM, SRIRAM · 1999 to 2008
$1.1M
Intramural NIH HHS Z01 BC010278Intramural NIH HHS Z01 HG200318Intramural NIH HHS Z99 HG999999Intramural NIH HHS ZIA BC010826
6 · The paper itself

Abstract

Methylmalonic acidemia is a lethal inborn error of metabolism that causes mitochondrial impairment, multi-organ dysfunction and a shortened lifespan. Previous transmission electron microscope studies of thin sections from normal (Mut(+/+)) and diseased (Mut(-/-)) tissue found that the mitochondria appear to occupy a progressively larger volume of mutant cells with age, becoming megamitochondria. To assess changes in shape and volume of mitochondria resulting from the mutation, we carried out ion-abrasion scanning electron microscopy (IA-SEM), a method for 3D imaging that involves the iterative use of a focused gallium ion beam to abrade the surface of the specimen, and a scanning electron beam to image the newly exposed surface. Using IA-SEM, we show that mitochondria are more convoluted and have a broader distribution of sizes in the mutant tissue. Compared to normal cells, mitochondria from mutant cells have a larger surface-area-to-volume ratio, which can be attributed to their convoluted shape and not to their elongation or reduced volume. The 3D imaging approach and image analysis described here could therefore be useful as a diagnostic tool for the evaluation of disease progression in aberrant cells at resolutions higher than that currently achieved using confocal light microscopy.

Indexed as

Microscopy, Electron, ScanningAmino Acid Metabolism, Inborn ErrorsAnimalsBlotting, WesternMethylmalonic AcidMiceMicroscopy, ConfocalMitochondria, LiverModels, BiologicalOxidative PhosphorylationMethylmalonic Acid

Identifiers

PMID20399866
PMCPMC2885563
OpenAlexW2040956954

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.