Evidence map›Paper›PMID 34331619›Full record

ArticleJournal of assisted reproduction and genetics2021

Mitochondrial content, activity, and morphology in prepubertal and adult human ovaries.

Rossella Masciangelo, Maria Costanza Chiti, Alessandra Camboni, Christiani Andrade Amorim, Jacques Donnez, Marie-Madeleine Dolmans

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of assisted reproduction and genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.4field-weighted citation impact, top 41% 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

9 citing papers in PubMed, 10 citations in OpenAlex.

  1. Article
  2. NMN Can Restore Ovarian Reserve in Aged Mice by Upregulating NADReproductive sciences (Thousand Oaks, Calif.) · 2026
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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 1 country.

Rossella MasciangeloPôle de Recherche en Gynécologie, Institut de Recherche Expérimentale Et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200, Brussels, Belgium.
Maria Costanza ChitiPôle de Recherche en Gynécologie, Institut de Recherche Expérimentale Et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200, Brussels, Belgium.
Alessandra CamboniPôle de Recherche en Gynécologie, Institut de Recherche Expérimentale Et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200, Brussels, Belgium.
Christiani Andrade AmorimPôle de Recherche en Gynécologie, Institut de Recherche Expérimentale Et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200, Brussels, Belgium.
Jacques DonnezSociété de Recherche Pour L'Infertilité, Avenue Grandchamp 143, 1150, Brussels, Belgium.
Marie-Madeleine DolmansPôle de Recherche en Gynécologie, Institut de Recherche Expérimentale Et Clinique, Université Catholique de Louvain, Avenue Mounier 52, bte. B1.52.02, 1200, Brussels, Belgium. marie-madeleine.dolmans@uclouvain.be.ORCID http://orcid.org/0000-0002-6331-3026
UCLouvain · BECliniques Universitaires Saint-Luc · BEPour la Solidarité · BE

Funding

EOS 30443682EOS 5/4/150/5Fonds De La Recherche Scientifique - FNRS T.0077.14Fonds De La Recherche Scientifique - FNRS (BE) 7.4590.16
6 · The paper itself

Abstract

purposeTo investigate whether mitochondrial content, activity, and morphology differ in prepubertal versus adult ovarian follicles.

methodsOvarian tissue was collected from 7 prepubertal girls (age 1-10 years) and 6 adult women (age 20-35 years). Primordial and primary follicles were isolated from frozen-thawed prepubertal and adult ovarian tissue and their viability was assessed. Mitochondrial content was investigated by TOMM20 immunostaining of prepubertal and adult ovarian tissue, while mitochondrial activity in isolated follicles was analyzed by MitoTracker CM-H2XRos and JC-1. Frozen-thawed ovarian tissue from the same patients was also evaluated by transmission electron microscopy to examine mitochondrial morphology.

resultsHigher TOMM20 staining was detected in prepubertal follicles compared to their adult counterparts, indicating the presence of more mitochondria in prepubertal follicles. Analysis of mitochondrial activity by MitoTracker showed higher fluorescence intensity in prepubertal follicles, suggesting that follicles in this group are more active than adult follicles. JC-1 analysis did not reveal any statistically significant difference in the inactive/active ratio between the two groups. Moreover, ultrastructural analysis by TEM detected morphological differences in the shape and cristae of prepubertal mitochondria, probably suggesting a mechanism of response to autophagy.

conclusionDifferences in the number, activity, and morphology of mitochondria were reported, suggesting that consequential modifications might occur during puberty, which could be the window of opportunity required by mitochondria to undergo changes needed to reach maturity, and hence the capacity for ovulation and fertilization.

Indexed as

AdultCase-Control StudiesChildChild, PreschoolCryopreservationFemaleHumansInfantMicroscopy, Electron, TransmissionMitochondriaMitochondrial ProteinsOvarian DiseasesOvarian FollicleOvaryPubertyYoung AdultMitochondrial ProteinsFollicle isolationMitochondriaPrepubertal ovarian tissueTransmission electron microscopy

Identifiers

PMID34331619
PMCPMC8581107
OpenAlexW3184274884

What OpenQuestion holds

Textmetadata
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.