Evidence map›Paper›PMID 20830737›Full record

ArticleMolecular reproduction and development2010

Role of AMPK throughout meiotic maturation in the mouse oocyte: evidence for promotion of polar body formation and suppression of premature activation.

Stephen M Downs, Ru Ya, Christopher C Davis

Abstract read
In one paragraph

Article in Molecular reproduction and development, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
3.0field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 26 citations in OpenAlex.

  1. Effect of Anti-Müllerian Hormone on Oocytes In Vitro Maturation in Sheep.International journal of molecular sciences · 2026
    Article
  2. Review
  3. Review
  4. Article
  5. Review
  6. Roles of AMP-Activated Protein Kinase (AMPK) in Mammalian Reproduction.Frontiers in cell and developmental biology · 2020
    Review
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. 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

3 authors at 1 institution in 1 country.

Stephen M DownsDepartment of Biological Sciences, Marquette University, Milwaukee, Wisconsin, USA. stephen.downs@marquette.edu
Ru Ya
Christopher C Davis
Marquette University · US

Funding

Regulation of Mammalian Oocyte MaturationR15HD061858 · NICHD · MARQUETTE UNIVERSITY · PI DOWNS, STEPHEN M · 2010 to 2010
$224k
NICHD NIH HHS R15 HD061858
6 · The paper itself

Abstract

This study was conducted to assess the role of AMPK in regulating meiosis in mouse oocytes from the germinal vesicle stage to metaphase II. Exposure of mouse cumulus cell-enclosed oocytes (CEO) and denuded oocytes (DO) during spontaneous maturation in vitro to AMPK-activating agents resulted in augmentation of the rate and frequency of polar body formation. Inhibitors of AMPK had an opposite, inhibitory effect. In addition, the AMPK inhibitor, compound C (Cmpd C) increased the frequency of oocyte activation. The stimulatory action of the AMPK-activating agent, AICAR, and the inhibitory action of Cmpd C were diminished if exposure was delayed, indicating an early action of AMPK on polar body formation. The frequency of spontaneous and Cmpd C-induced activation in CEO was reduced as the period of hormonal priming was increased, and AMPK stimulation eliminated the activation response. Immunostaining of oocytes with antibody to active AMPK revealed an association of active kinase with chromatin, spindle poles, and midbody during maturation. Immunolocalization of the α1 catalytic subunit of AMPK showed an association with condensed chromatin and the meiotic spindle but not in the spindle poles or midbody; α2 stained only diffusely throughout the oocyte. These data suggest that AMPK is involved in a regulatory capacity throughout maturation and helps promote the completion of meiosis while suppressing premature activation.

Indexed as

MeiosisOocytesSpindle ApparatusAminoimidazole CarboxamideAMP-Activated Protein KinasesAnalysis of VarianceAnimalsCumulus CellsEnzyme ActivatorsEnzyme InhibitorsFemaleImmunohistochemistryMiceMice, Inbred C57BLPyrazolesPyrimidinesAICA ribonucleotideAminoimidazole CarboxamideAMP-Activated Protein KinasesdorsomorphinEnzyme ActivatorsEnzyme InhibitorsPyrazolesPyrimidinesRibonucleotides

Identifiers

PMID20830737
PMCPMC3995477
OpenAlexW2125585441

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.