Evidence map›Paper›PMID 23884563›Full record

ArticleJournal of molecular histology2013

Gestational protein restriction induces alterations in placental morphology and mitochondrial function in rats during late pregnancy.

Hércules Jonas Rebelato, Marcelo Augusto Marreto Esquisatto, Camila Moraes, Maria Esmeria Corezola Amaral, Rosana Catisti

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of molecular histology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 7% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Amino Acids in Reproductive Nutrition and Health.Advances in experimental medicine and biology · 2020
    Review
  14. Placental mitochondria adapt developmentally and in response to hypoxia to support fetal growth.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  15. Article
  16. Low-protein diet does not alter reproductive, biochemical, and hematological parameters in pregnant Wistar rats.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2018
    Article
  17. Impact of Obesity and Hyperglycemia on Placental Mitochondria.Oxidative medicine and cellular longevity · 2018
    Article
  18. Review
  19. Article
  20. 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

5 authors at 1 institution in 1 country.

Hércules Jonas RebelatoBiomedical Sciences Graduate Program, Centro Universitário Hermínio Ometto, UNIARARAS, Av Maximiliano Baruto, 500, Araras, SP, 13607-339, Brazil.
Marcelo Augusto Marreto Esquisatto
Camila Moraes
Maria Esmeria Corezola Amaral
Rosana Catisti
Centro Universitário Herminio Ometto de Araras · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The placenta acts a regulator of nutrient composition and supply from mother to fetus and is the source of hormonal signals that affect maternal and fetal metabolism. Thus, appropriate development of the placenta is crucial for normal fetal development. We investigated the effect of gestational protein restriction (GPR) on placental morphology and mitochondrial function on day 19 of gestation. Pregnant dams were divided into two groups: normal (NP 17 % casein) or low-protein diet (LP 6 % casein). The placentas were processed for biochemical, histomorphometric and ultrastructural analysis. The integrity of rat placental mitochondria (RPM) isolated by conventional differential centrifugation was measured by oxygen uptake (Clark-type electrode). LP animals presented an increase in adipose tissue and triacylglycerol and a decrease in serum insulin levels. No alterations were observed in body, liver, fetus, or placenta weight. There was also no change in serum glucose, total protein, or lipid content. Gestational protein restriction had tissue-specific respiratory effects, with the observation of a small change in liver respiration (~13 %) and considerable respiratory inhibition in placenta samples (~37 %). The higher oxygen uptake by RPM in the LP groups suggests uncoupling between respiration and oxidative phosphorylation. In addition, ultrastructural analysis of junctional zone giant cells from LP placenta showed a disorganized cytoplasm, with loss of integrity of most organelles and intense vacuolization. The present results led us to hypothesize that GPR alters placental structure and morphology, induces sensitivity to insulin, mitochondrial abnormalities and suggests premature aging of the placenta. Further studies are needed to test this hypothesis.

Indexed as

AnimalsDiet, Protein-RestrictedFemaleFetal DevelopmentGestational AgeMitochondriaOxygen ConsumptionPlacentaPregnancyRats

Identifiers

PMID23884563
OpenAlexW2024887680

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.