Evidence map›Paper›PMID 32433500›Full record

ArticleScientific reports2020

Role of metformin in epigenetic regulation of placental mitochondrial biogenesis in maternal diabetes.

Shaoning Jiang, April M Teague, Jeanie B Tryggestad, Mary E Jensen, Steven D Chernausek

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 39 citations in OpenAlex.

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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 1 institution in 1 country.

Shaoning JiangDepartment of Pediatrics, Section of Diabetes and Endocrinology, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA. shaoning-jiang@ouhsc.edu.
April M TeagueDepartment of Pediatrics, Section of Diabetes and Endocrinology, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
Jeanie B TryggestadDepartment of Pediatrics, Section of Diabetes and Endocrinology, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
Mary E JensenDepartment of Pediatrics, Section of Diabetes and Endocrinology, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
Steven D ChernausekDepartment of Pediatrics, Section of Diabetes and Endocrinology, Harold Hamm Diabetes Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
University of Oklahoma Health Sciences Center · US

Funding

Proteomics CoreP20GM103447 · NIGMS · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI David W Dyer · 2012 to 2026
$60.2M
Pilot Project ProgramP30GM122744 · NIGMS · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI LE, YUN ZHENG · 2017 to 2021
$5.5M
In utero exposure to diabetes and future cardiometabolic risk: the role of miRNAK23DK106533 · NIDDK · UNIVERSITY OF OKLAHOMA HLTH SCIENCES CTR · PI TRYGGESTAD, JEANIE BEATRICE · 2016 to 2021
$638k
NIDDK NIH HHS K23 DK106533NIGMS NIH HHS P20 GM103447NIGMS NIH HHS P30 GM122744
6 · The paper itself

Abstract

Adverse maternal environments, such as diabetes and obesity, impair placental mitochondrial function, which affects fetal development and offspring long-term health. The underlying mechanisms and effective interventions to abrogate such effect remain unclear. Our previous studies demonstrated impaired mitochondrial biogenesis in male human placenta of diabetic mothers. In the present studies, epigenetic marks possibly related to mitochondrial biogenesis in placentae of women with diabetes (n = 23) and controls (n = 23) were analyzed. Effects of metformin were examined in human placental explants from a subgroup of diabetic women and in a mouse model of maternal high fat diet feeding. We found that maternal diabetes was associated with epigenetic regulation of mitochondrial biogenesis in human placenta in a fetal sex-dependent manner, including decreased histone acetylation (H3K27 acetylation) and increased promoter methylation of peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α). In male placenta, the levels of H3K27 acetylation and PGC-1α promoter methylation correlated significantly with the activity of AMP-activated protein kinase (AMPK). Metformin treatment on male diabetic placental explant activated AMPK and stimulated PGC-1α expression, concomitant with increased H3K27 acetylation and decreased PGC-1α promoter methylation. In vivo, we show that maternal metformin treatment along with maternal high fat diet significantly increased mouse placental abundance of PGC-1α expression and downstream mitochondrial transcription factor A (TFAM) and inhibited maternal high fat diet-impaired placental efficiency and glucose tolerance in offspring. Together, these findings suggest the capability of metformin to stimulate placental mitochondrial biogenesis and inhibit the aberrant epigenetic alterations occurring in maternal diabetes during pregnancy, conferring protective effects on offspring.

Indexed as

Epigenesis, GeneticOrganelle BiogenesisAcetylationAdultAMP-Activated Protein KinasesAnimalsCohort StudiesDiabetes, GestationalDiet, High-FatDNA MethylationFemaleHistonesHumansMaleMetforminMiceAMP-Activated Protein KinasesHistonesMetforminPeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaPPARGC1A protein, human

Identifiers

PMID32433500
PMCPMC7239922
OpenAlexW3027452003

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.