Evidence map›Paper›PMID 26406887›Full record

ArticlePloS one2015

Maternal Nutrient Restriction Alters Ca2+ Handling Properties and Contractile Function of Isolated Left Ventricle Bundles in Male But Not Female Juvenile Rats.

Thomas J Harvey, Robyn M Murphy, Janna L Morrison, Giuseppe S Posterino

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
8.0field-weighted citation impact, top 3% 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

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

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Review
  6. Effects of Sex Hormones on Vascular Reactivity in Boys With Hypospadias.The Journal of clinical endocrinology and metabolism · 2024
    Article
  7. Review
  8. Effects of intrauterine growth restriction on CaJournal of physiology and biochemistry · 2020
    Article
  9. Article
  10. Prenatal hypoxia impairs cardiac mitochondrial and ventricular function in guinea pig offspring in a sex-related manner.American journal of physiology. Regulatory, integrative and comparative physiology · 2018
    Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. At the heart of accelerated old matter.The Journal of physiology · 2017
    Article
  16. 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

4 authors at 2 institutions in 1 country.

Thomas J HarveyDepartment of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, Vic, Australia.
Robyn M MurphyDepartment of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Vic, Australia.
Janna L MorrisonSchool of Pharmacy and Medical Science, Sansom Institute for Health Research, University of South Australia, Adelaide, Australia.
Giuseppe S PosterinoDepartment of Physiology, Anatomy and Microbiology, La Trobe University, Melbourne, Vic, Australia.
La Trobe University · AUUniversity of South Australia · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Intrauterine growth restriction (IUGR), defined as a birth weight below the 10th centile, may be caused by maternal undernutrition, with evidence that IUGR offspring have an increased risk of cardiovascular disease (CVD) in adulthood. Calcium ions (Ca2+) are an integral messenger for several steps associated with excitation-contraction coupling (ECC); the cascade of events from the initiation of an action potential at the surface membrane, to contraction of the cardiomyocyte. Any changes in Ca2+ storage and release from the sarcoplasmic reticulum (SR), or sensitivity of the contractile apparatus to Ca2+ may underlie the mechanism linking IUGR to an increased risk of CVD. This study aimed to explore the effects of maternal nutrient restriction on cardiac function, including Ca2+ handling by the SR and force development by the contractile apparatus. Juvenile Long Evans hooded rats born to Control (C) and nutrient restricted (NR) dams were anaesthetized for collection of the heart at 10-12 weeks of age. Left ventricular bundles from male NR offspring displayed increased maximum Ca2+-activated force, and decreased protein content of troponin I (cTnI) compared to C males. Furthermore, male NR offspring showed a reduction in rate of rise of the caffeine-induced Ca2+ force response and a decrease in the protein content of ryanodine receptor (RYR2). These physiological and biochemical findings observed in males were not evident in female offspring. These findings illustrate a sex-specific effect of maternal NR on cardiac development, and also highlight a possible mechanism for the development of hypertension and hypertrophy in male NR offspring.

Indexed as

Calcium SignalingMyocytes, CardiacSex CharacteristicsAnimalsCalciumFemaleHeart VentriclesMaleMyocardial ContractionRatsRats, Long-EvansRyanodine Receptor Calcium Release ChannelCalciumRyanodine Receptor Calcium Release Channel

Identifiers

PMID26406887
PMCPMC4583465
OpenAlexW2339120898

What OpenQuestion holds

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LicenceCC BY
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.