Evidence map›Paper›PMID 34079518›Full record

ReviewFrontiers in endocrinology2021

Dimming the Powerhouse: Mitochondrial Dysfunction in the Liver and Skeletal Muscle of Intrauterine Growth Restricted Fetuses.

Alexander L Pendleton, Stephanie R Wesolowski, Timothy R H Regnault, Ronald M Lynch, Sean W Limesand

Open access · goldAbstract readReview
In one paragraph

Review in Frontiers in endocrinology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
12.7field-weighted citation impact, top 1% 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

35 citing papers in PubMed, 48 citations in OpenAlex.

  1. Article
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  6. Slow-twitch oxidative myofiber proportions and capillary number per myofiber are reduced in growth-restricted fetal sheep.American journal of physiology. Regulatory, integrative and comparative physiology · 2025
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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

5 authors at 3 institutions in 2 countries.

Alexander L PendletonSchool of Animal and Comparative Biomedical Sciences, The University of Arizona, Tucson, AZ, United States.
Stephanie R WesolowskiDepartment of Pediatrics, University of Colorado School of Medicine, Aurora, CO, United States.
Timothy R H RegnaultDepartment of Physiology and Pharmacology, Western University, London, ON, Canada.
Ronald M LynchSchool of Animal and Comparative Biomedical Sciences, The University of Arizona, Tucson, AZ, United States.
Sean W LimesandSchool of Animal and Comparative Biomedical Sciences, The University of Arizona, Tucson, AZ, United States.
University of Arizona · USUniversity of Colorado Denver · USWestern University · CA

Funding

PILOT STUDY--SUBSTRATE METABOLISM IN EXTREMELY LOW BIRTH WEIGHT INFANTSP30DK048520 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI Edward L Melanson · 1995 to 2026
$32.6M
PHYSIOLOGYT32HL007249 · NHLBI · UNIVERSITY OF ARIZONA · PI Brett A Colson, JOHN P KONHILAS · 1985 to 2026
$12.5M
Prevention of Placental Insufficiency Improves Beta-Cells FunctionR01DK084842 · NIDDK · UNIVERSITY OF ARIZONA · PI SEAN W LIMESAND · 2009 to 2026
$5.6M
Nutrient and Insulin Metabolic Actions in IUGR Fetal LiverR01DK108910 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI Stephanie R Wesolowski · 2017 to 2026
$4.3M
NHLBI NIH HHS T32 HL007249NIDDK NIH HHS P30 DK048520NIDDK NIH HHS R01 DK084842NIDDK NIH HHS R01 DK108910
6 · The paper itself

Abstract

Intrauterine growth restriction (IUGR) of the fetus, resulting from placental insufficiency (PI), is characterized by low fetal oxygen and nutrient concentrations that stunt growth rates of metabolic organs. Numerous animal models of IUGR recapitulate pathophysiological conditions found in human fetuses with IUGR. These models provide insight into metabolic dysfunction in skeletal muscle and liver. For example, cellular energy production and metabolic rate are decreased in the skeletal muscle and liver of IUGR fetuses. These metabolic adaptations demonstrate that fundamental processes in mitochondria, such as substrate utilization and oxidative phosphorylation, are tempered in response to low oxygen and nutrient availability. As a central metabolic organelle, mitochondria coordinate cellular metabolism by coupling oxygen consumption to substrate utilization in concert with tissue energy demand and accretion. In IUGR fetuses, reducing mitochondrial metabolic capacity in response to nutrient restriction is advantageous to ensure fetal survival. If permanent, however, these adaptations may predispose IUGR fetuses toward metabolic diseases throughout life. Furthermore, these mitochondrial defects may underscore developmental programming that results in the sequela of metabolic pathologies. In this review, we examine how reduced nutrient availability in IUGR fetuses impacts skeletal muscle and liver substrate catabolism, and discuss how enzymatic processes governing mitochondrial function, such as the tricarboxylic acid cycle and electron transport chain, are regulated. Understanding how deficiencies in oxygen and substrate metabolism in response to placental restriction regulate skeletal muscle and liver metabolism is essential given the importance of these tissues in the development of later lifer metabolic dysfunction.

Indexed as

AnimalsCitric Acid CycleFemaleFetal Growth RetardationHumansInfant, NewbornLiverMitochondriaMitochondrial DiseasesMuscle, SkeletalOxidative PhosphorylationOxygenPlacental InsufficiencyPregnancyOxygenintrauterine growth restriction (IUGR)mitochondrial metabolismoxidative phosphorylationplacental insufficiencytricarboxylic acid (TCA) cycle

Identifiers

PMID34079518
PMCPMC8165279
OpenAlexW3162558234

What OpenQuestion holds

Textmetadata
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.