Evidence map›Paper›PMID 17350747›Full record

ArticleEuropean journal of obstetrics, gynecology, and reproductive biology2008

Determination of metformin transfer across the human placenta using a dually perfused ex vivo placental cotyledon model.

Michal Kovo, Simon Haroutiunian, Noa Feldman, Amnon Hoffman, Marek Glezerman

Registry-linked trialAbstract read
PubMed Publisher
In one paragraph

Article in European journal of obstetrics, gynecology, and reproductive biology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06064669 (Effect of Metformin on Healthy Live Birth After In-vitro Fertilization in Women With Prediabetes Mellitus), which is not on this map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
3.6field-weighted citation impact, top 8% 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.

NCT06064669 narecruitingstarted 2024, after this paper: background citation

Effect of Metformin on Healthy Live Birth After In-vitro Fertilization in Women With Prediabetes Mellitus: a Multicenter Double-blind Placebo Controlled Randomized Trial

Ran2024Enrolled988Registered outcomes26Posted comparisons0ConditionsIn-Vitro Fertilization, Metformin, PrediabetesArmsMetformin pretreatment before endometrial preparation for frozen embryo transfer, Metformin pretreatment before ovarian stimulation, Placebo pretreatment before endometrial preparation for frozen embryo transfer, Placebo pretreatment before ovarian stimulation
Open the trial in the graph
3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 81 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  7. Frontiers in pharmacology · 2024
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  8. Review
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  14. Neonatal outcomes in women with gestational diabetes mellitus treated with metformin in compare with insulin: A randomized clinical trial.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2014
    Article
  15. Review
  16. Review
  17. Article
  18. Gestational diabetes mellitus: Non-insulin management.Indian journal of endocrinology and metabolism · 2011
    Article
  19. Antibiotic Treatment of Dogs and Cats during Pregnancy.Veterinary medicine international · 2010
    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 3 institutions in 1 country.

Michal KovoDepartment of Obstetrics and Gynecology, the E. Wolfson Medical Center, Holon, and Sackler School of Medicine, Tel Aviv University, Israel.
Simon Haroutiunian
Noa Feldman
Amnon Hoffman
Marek Glezerman
Hebrew University of Jerusalem · ILWolfson Medical Center · ILTel Aviv University · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe aim of the study was to quantify and characterize metformin transfer across the human placenta using an ex vivo placental perfusion model. STUDY

designPlacentas were obtained from vaginal deliveries or caesarean sections and selected cotyledons were cannulated and dually perfused. Metformin (1 microg/ml) and a permeability reference marker, antipyrine (50 microg/ml), were added to the maternal circulation. Each perfusion experiment was conducted for 180 min while samples were taken from the maternal and fetal compartments. The integrity and viability of the placenta were determined by measuring the flow rates, fetal artery inflow pressure, and hCG production during the experiments.

resultsSix complete experimental set-ups were completed. The maternal-fetal transport rates for metformin and antipyrine were 10.61+/-2.85% and 30.98+/-5.62%, respectively. The clearance index, calculated as the ratio between the permeabilities of metformin and antipyrine, was 0.34+/-0.05.

conclusionThe results indicate that metformin is able to cross the mature human placenta; thus, fetal exposure must be considered when treating pregnant women with metformin.

Indexed as

Maternal-Fetal ExchangeAnti-Inflammatory Agents, Non-SteroidalAntipyrineFemaleHumansHypoglycemic AgentsMetforminModels, BiologicalPlacentaPregnancyAnti-Inflammatory Agents, Non-SteroidalAntipyrineHypoglycemic AgentsMetformin

Identifiers

PMID17350747
OpenAlexW2110145701

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.