Evidence map›Paper›PMID 33112812›Full record

ArticleEndocrine connections2020

Metformin decreases miR-122, miR-223 and miR-29a in women with polycystic ovary syndrome.

Pernille Bækgaard Udesen, Dorte Glintborg, Anja Elaine Sørensen, Rikke Svendsen, Nanna Louise Skov Nielsen, Marie Louise Muff Wissing, Marianne Skovsager Andersen, Anne Lis Mikkelsen Englund, Louise Torp Dalgaard

Open access · goldAbstract read
In one paragraph

Article in Endocrine connections, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.7field-weighted citation impact, top 16% 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

19 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. MicroRNA Crossroads in PCOS and Endometriosis.Reproductive sciences (Thousand Oaks, Calif.) · 2026
    Review
  3. Review
  4. Article
  5. Article
  6. MicroRNAs as Biomarkers for Metabolic Disorders in Polycystic Ovary Syndrome (PCOS): A Review.Medical science monitor : international medical journal of experimental and clinical research · 2024
    Review
  7. The Beneficial Effects ofInternational journal of molecular sciences · 2024
    Article
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  10. Review
  11. Article
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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

9 authors at 5 institutions in 1 country.

Pernille Bækgaard UdesenThe Fertility Clinic, Department of Gynecology and Obstetrics, Zealand University Hospital, Køge, Denmark.
Dorte GlintborgDepartment of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark.ORCID 0000-0002-8338-8025
Anja Elaine SørensenDepartment of Science and Environment, Roskilde University, Roskilde, Denmark.
Rikke SvendsenDepartment of Science and Environment, Roskilde University, Roskilde, Denmark.
Nanna Louise Skov NielsenDepartment of Science and Environment, Roskilde University, Roskilde, Denmark.
Marie Louise Muff WissingAleris Hamlet Hospital Group, The Fertility Clinic, Søborg, Denmark.
Marianne Skovsager AndersenDepartment of Endocrinology and Metabolism, Odense University Hospital, Odense, Denmark.
Anne Lis Mikkelsen EnglundThe Fertility Clinic, Department of Gynecology and Obstetrics, Zealand University Hospital, Køge, Denmark.
Louise Torp DalgaardDepartment of Science and Environment, Roskilde University, Roskilde, Denmark.ORCID 0000-0002-3598-2775
Roskilde University · DKOdense University Hospital · DKZealand University Hospital Køge · DKAleris Hamlet Hospital · DKNæstved Sygehus · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metformin is associated with increased insulin sensitivity, whereas oral contraceptive pills (OCP) could increase the risk for type 2 diabetes (T2D) in women with polycystic ovary syndrome (PCOS). Certain miRNAs might serve as biomarkers for the risk of T2D. The aim of this study was to investigate changes in circulating miRNA levels during treatment with metformin and OCP in women with PCOS. Sixty-five women with PCOS according to Rotterdam criteria were randomized to metformin (2 g/day), metformin + OCP (150 mg desogestrel + 30 µg ethinylestradiol) or OCP alone for 12 months. Serum miRNA analysis was performed with individual RT-qPCR or Taqman low density array cards of 22 selected miRNAs previously related to PCOS, glucose and/or lipid metabolism. miR-122 and miR-29a levels were decreased after treatment with metformin compared with metformin + OCP and OCP group: miR-122: log2 difference -0.7 (P = 0.01) and -0.7 (P = 0.02), miR-29a: log2 difference -0.5 (P = 0.01) and -0.4 (P = 0.04), while miR-223 levels were decreased in the metformin + OCP group after treatment: log2 difference -0.5 (P = 0.02). During the treatment period, a significant weight loss was observed in the metformin group compared with the OCP group. In the OCP group, miRNA levels were unchanged during the treatment period. Levels of circulating miRNAs associated with lipid and glucose metabolism decreased during metformin treatment. Changes in miRNA levels in the metformin group could be explained by the simultaneous weight loss in the same group. These results support the notion that metformin treatment alone may be superior for metabolic health compared with OCP.

Indexed as

biomarkersmetforminmicroRNAmiR-122polycystic ovary syndrome

Identifiers

PMID33112812
PMCPMC7774773
OpenAlexW3090440902

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.