Evidence map›Paper›PMID 34206212›Full record

ArticlePharmaceutics2021

Detection of Microplastic in Human Placenta and Meconium in a Clinical Setting.

Thorsten Braun, Loreen Ehrlich, Wolfgang Henrich, Sebastian Koeppel, Ievgeniia Lomako, Philipp Schwabl, Bettina Liebmann

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Pharmaceutics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT05070715 (Comparison of Microplastic Levels in Placenta and Cord Blood Samples of Pregnant Women With Fetal Growth Retardation and Healthy Pregnant Women), which is not on this map. Cited by 129 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
129citing papers in PubMed, 6 pooled it
15.1field-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.

NCT05070715 unknown statusnot on this mapstarted 2022, after this paper: background citation

Comparison of Microplastic Levels in Placenta and Cord Blood Samples of Pregnant Women With Fetal Growth Retardation and Healthy Pregnant Women

TypeobservationalSponsorKutahya Health Sciences UniversityRan2022 to 2023Enrolled40ConditionsMicroplastic Levels in Placenta and Cord BloodArmsAnalyzing of microplastic level
3 · Its place in the literature

Who cites it

129 citing papers in PubMed, 6 syntheses or guidelines pooled it, 445 citations in OpenAlex.

  1. Pooled it
  2. Micro and Nanoplastics and Obstetric Outcomes in Humans and Animals: A Systematic Review.International journal of environmental research and public health · 2026
    Pooled it
  3. Health impacts of micro- and nanoplastics in humans: systematic review of in vivo evidence.Environmental health : a global access science source · 2026
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Human Exposure to Micro- and Nanoplastics:Environment & health (Washington, D.C.) · 2026
    Review
  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Review
  16. Article
  17. Investigating the Impact of Carboxylated Polystyrene Nanoplastics in the Liver Using Cell Lines and Precision-Cut Liver Slices.Liver international : official journal of the International Association for the Study of the Liver · 2026
    Article
  18. Article
  19. Review
  20. Article

69 more citing papers are in PubMed but not listed here.

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

7 authors at 3 institutions in 2 countries.

Thorsten BraunClinic of Obstetrics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität und Humboldt-Universität zu Berlin, Augustenburgerplatz 1, 13507 Berlin, Germany.ORCID 0000-0002-1989-9920
Loreen EhrlichDivision of Experimental Obstetrics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität und Humboldt-Universität zu Berlin, Augustenburgerplatz 1, 13507 Berlin, Germany.
Wolfgang HenrichClinic of Obstetrics, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität und Humboldt-Universität zu Berlin, Augustenburgerplatz 1, 13507 Berlin, Germany.
Sebastian KoeppelEnvironment Agency Austria (Umweltbundesamt GmbH), 1090 Vienna, Austria.
Ievgeniia LomakoEnvironment Agency Austria (Umweltbundesamt GmbH), 1090 Vienna, Austria.
Philipp SchwablDivision of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University of Vienna, 1090 Vienna, Austria.ORCID 0000-0002-7183-8076
Bettina LiebmannEnvironment Agency Austria (Umweltbundesamt GmbH), 1090 Vienna, Austria.
Environment Agency Austria · ATHumboldt-Universität zu Berlin · DEMedical University of Vienna · AT

Funding

University research fund of Charité - Universitätsmedizin Berlin, Germany intern
6 · The paper itself

Abstract

Environmental pollution with microplastics (MPs) is a major and worldwide concern. Involuntary exposure to MPs by ingestion or inhalation is unavoidable. The effects on human health are still under debate, while in animals, cellular MP translocation and subsequent deleterious effects were shown. First reports indicate a potential intrauterine exposure with MPs, yet readouts are prone to contamination.

methodTo establish a thorough protocol for the detection of MPs in human placenta and fetal meconium in a real-life clinical setting, a pilot study was set up to screen for MPs > 50 µm in placental tissue and meconium sampled during two cesarean sections for breech deliveries. After chemical digestion of non-plastic material, Fourier-transform infrared (FTIR) microspectroscopy was used to analyze the presence of 10 common types of microplastic in placenta and stool samples.

resultsHuman placenta and meconium samples were screened positive for polyethylene, polypropylene, polystyrene, and polyurethane, of which only the latter one was also detected as airborne fallout in the operating room-thus representing potential contamination.

conclusionWe found MPs > 50 µm in placenta and meconium acquired from cesarean delivery. Critical evaluation of potential contamination sources is pivotal and may guide future clinical studies to improve the correct detection of MPs in organ tissue. Studies investigating nano-sized plastics in human tissue are warranted.

Indexed as

fetusmicroplasticsplacentapolystyrenepregnancy

Identifiers

PMID34206212
PMCPMC8308544
OpenAlexW3177096097

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.