Evidence map›Paper›PMID 25543533›Full record

ArticleJournal of ovarian research2014

Primordial follicle activation in the ovary of Ames dwarf mice.

Augusto Schneider, Xu Zhi, Fabiana Moreira, Thomaz Lucia, Rafael Gianella Mondadori, Michal M Masternak

Open access · goldAbstract read
In one paragraph

Article in Journal of ovarian research, 2014. 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
2.9field-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

19 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. The Interconnections Between Somatic and Ovarian Aging in Murine Models.The journals of gerontology. Series A, Biological sciences and medical sciences · 2021
    Review
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  13. GH and ageing: Pitfalls and new insights.Best practice & research. Clinical endocrinology & metabolism · 2017
    Review
  14. Article
  15. Article
  16. Article
  17. Healthspan and longevity can be extended by suppression of growth hormone signaling.Mammalian genome : official journal of the International Mammalian Genome Society · 2016
    Review
  18. The somatotropic axis and aging: Benefits of endocrine defects.Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society · 2016
    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

6 authors at 3 institutions in 3 countries.

Augusto SchneiderFaculdade de Nutrição, Universidade Federal de Pelotas, Rua Gomes Carneiro, 1 Sala 239, CEP 96020-220, Pelotas, RS, Brazil. augusto.schneider@ufpel.edu.br.
Xu ZhiCollege of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA. zhixujp@hotmail.com.
Fabiana MoreiraFaculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brazil. fabimorvet@gmail.com.
Thomaz LuciaFaculdade de Veterinária, Universidade Federal de Pelotas, Pelotas, RS, Brazil. tluciajr@gmail.com.
Rafael Gianella MondadoriInstituto de Biologia, Universidade Federal de Pelotas, Pelotas, RS, Brazil. rgmondadori@gmail.com.
Michal M MasternakCollege of Medicine, Burnett School of Biomedical Sciences, University of Central Florida, 6900 Lake Nona Blvd., Orlando, FL, 32827, USA. michal.masternak@ucf.edu.
Universidade Federal de Pelotas · BRGreater Poland Cancer Center · PLUniversity of Central Florida · US

Funding

The Somatotropic Axis and Health Aging: A Search for MechanismsP01AG031736 · NIA · SOUTHERN ILLINOIS UNIVERSITY SCH OF MED · PI KIRKLAND, JAMES L. · 2009 to 2013
$8.4M
Dietary fat, visceral fat depots and agingR01AG032290 · NIA · UNIVERSITY OF CENTRAL FLORIDA · PI MASTERNAK, MICHAL MATEUSZ · 2010 to 2014
$1.5M
NIA NIH HHS P01 AG031736NIA NIH HHS P01AG031736NIA NIH HHS R01 AG032290NIA NIH HHS R01AG032290
6 · The paper itself

Abstract

backgroundThe insulin receptor substrate 1 (IRS1), phosphoinositide 3-kinase (Pi3k), protein kinase B (Akt1), Forkhead Box O3a (FOXO3a) pathway is directly involved in aging and ovarian activation of follicle growth. Therefore, the aim of this work was to measure the expression of genes related to the ovarian pathway for activation of primordial follicles and FOXO3a protein phosphorylation between young and old female Ames dwarf (df/df) and normal (N) mice.

methodsFor this study ovaries from N (n = 10) and df/df (n = 10) female mice were collected at 5-6 months of age and at 21-22 months of age. For immunohistochemistry ovaries from 12 month-old and df/df mice were used.

resultsThe expression of Irs1, Pi3k, Akt1, mammalian target of rapamycin (Mtor), suppressor of cytokine signaling -2 (Socs2), Socs3 was lower (P < 0.05) in older than younger N mice and not different (P > 0.05) between young and old df/df mice. The expression of Foxo3a was also lower (P < 0.05) in old than younger N and df/df mice and was higher (P < 0.05) in old df/df than N mice. Expression of Amh was lower (P < 0.05) in old than young N and df/df mice and was higher (P = 0.0009) in df/df than N mice. Imunnostaining for p-FOXO3 was lower in df/df than N mice (P < 0.001), although FOXO3 immunostaining was not different (P > 0.05) between df/df and N mice.

conclusionsIn sum, the present study indicates that lower expression of Irs1, Socs2, Socs3, Akt1, Pi3k, Mtor and Foxo3a mRNA in the ovaries of older mice of both genotypes is associated to a reduced ovarian activity revealed by lower expression of Amh mRNA. At the same time, ovaries of old df/df mice maintained higher expression of Foxo3a mRNA, which was associated to higher ovarian activity. We have shown that df/df females have a lower level of p-FOXO3 in oocytes from primordial/primary follicles, an important activator of follicular growth. Therefore, this study strongly indicates that Prop1(df) mutation causes delayed ovarian aging.

Indexed as

AnimalsFemaleForkhead Box Protein O3Forkhead Transcription FactorsGene ExpressionInsulin Receptor Substrate ProteinsMice, TransgenicOvarian FolliclePhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktAkt1 protein, mouseForkhead Box Protein O3Forkhead Transcription FactorsFoxO3 protein, mouseInsulin Receptor Substrate ProteinsIrs1 protein, mousePhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-akt

Identifiers

PMID25543533
PMCPMC4354747
OpenAlexW2101218401

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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.