Evidence map›Paper›PMID 38366932›Full record

ArticleToxicological sciences : an official journal of the Society of Toxicology2024

Quantitation and identification of microplastics accumulation in human placental specimens using pyrolysis gas chromatography mass spectrometry.

Marcus A Garcia, Rui Liu, Alex Nihart, Eliane El Hayek, Eliseo Castillo, Enrico R Barrozo, Melissa A Suter, Barry Bleske, Justin Scott, Kyle Forsythe and 3 more

Open access · greenAbstract read
In one paragraph

Article in Toxicological sciences : an official journal of the Society of Toxicology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed, 3 pooled it
26.9field-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

102 citing papers in PubMed, 3 syntheses or guidelines pooled it, 202 citations in OpenAlex.

  1. Pooled it
  2. Health impacts of micro- and nanoplastics in humans: systematic review of in vivo evidence.Environmental health : a global access science source · 2026
    Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Microplastics in the Female Genital Tract and Fetoplacental Continuum: A Lesion-Based Framework for Pathophysiological Interpretation.Pathophysiology : the official journal of the International Society for Pathophysiology · 2026
    Review
  7. Microplastics and Nanoplastics in Food: Dietary Toxicology Beyond Particle Counts.Comprehensive reviews in food science and food safety · 2026
    Review
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  20. Tracking of [Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article

42 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

13 authors at 3 institutions in 1 country.

Marcus A GarciaDepartment of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences, Albuquerque, New Mexico 87106, USA.
Rui LiuDepartment of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences, Albuquerque, New Mexico 87106, USA.
Alex NihartDepartment of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences, Albuquerque, New Mexico 87106, USA.
Eliane El HayekDepartment of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences, Albuquerque, New Mexico 87106, USA.ORCID 0000-0003-1129-2419
Eliseo CastilloDivision of Gastroenterology and Hepatology, Department of Internal Medicine, University of New Mexico School of Medicine, Albuquerque, New Mexico 87106, USA.ORCID 0000-0002-5083-560X
Enrico R BarrozoDivision of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas 77030, USA.
Melissa A SuterDivision of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas 77030, USA.
Barry BleskeDepartment of Pharmacy Practice and Administrative Sciences, College of Pharmacy, University of New Mexico Health Sciences, Albuquerque, New Mexico 87106, USA.
Justin ScottSchool of Civil & Environmental Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
Kyle ForsytheSchool of Civil & Environmental Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
Jorge Gonzalez-EstrellaSchool of Civil & Environmental Engineering, Oklahoma State University, Stillwater, Oklahoma 74078, USA.
Kjersti M AagaardDivision of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Baylor College of Medicine and Texas Children's Hospital, Houston, Texas 77030, USA.
Matthew J CampenDepartment of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences, Albuquerque, New Mexico 87106, USA.
University of New Mexico · USBaylor College of Medicine · USOklahoma State University · US

Funding

University of New Mexico Center for Metals in Biology and Medicine - equipment supplementP20GM130422 · NIGMS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI Priscilla Marie De La Cruz · 2020 to 2026
$20.4M
FAIR Data Competency and Machine Learning Readiness for Biomedical ScientistsK12GM088021 · NIGMS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI REBECCA S. HARTLEY, Diane Lidke · 2009 to 2026
$16.4M
Project 2: Disparities-Aware Classifiers for Maternal and Infant HealthP50MD015496 · NIMHD · BAYLOR COLLEGE OF MEDICINE · PI SYMANSKI, ELAINE · 2020 to 2024
$7.2M
Role of open dumping and open burning of solid waste in the generation of microplastics and products of incomplete combustion on tribal landsP50MD015706 · NIMHD · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI MACKENZIE, DEBRA · 2020 to 2024
$6.8M
Mechanisms of Vascular Toxicity from Inhaled ToxicantsR01ES014639 · NIEHS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI CAMPEN, MATTHEW J · 2008 to 2023
$6.7M
Diversity Supplement - Diego RuizR01ES032037 · NIEHS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI Eliseo F Castillo · 2022 to 2026
$2.0M
Supplement for Role of Environmental Weathering and Gastrointestinal Digestion on the Bioavailability and Toxicity of Microplastic and Cadmium MixturesR15ES034901 · NIEHS · OKLAHOMA STATE UNIVERSITY STILLWATER · PI GONZALEZ ESTRELLA, JORGE · 2023 to 2023
$665k
Defining the Harmful Effects of Microplastics on Gastrointestinal HealthR56ES032037 · NIEHS · UNIVERSITY OF NEW MEXICO HEALTH SCIS CTR · PI CASTILLO, ELISEO F · 2020 to 2020
$112k
NIEHS NIH HHS R01 ES014639NIEHS NIH HHS R01 ES032037NIEHS NIH HHS R15 ES034901NIGMS NIH HHS K12 GM088021NIGMS NIH HHS P20 GM130422NIH HHS P20 GM130422NIMHD NIH HHS P50 MD015496NIMHD NIH HHS P50 MD015706
6 · The paper itself

Abstract

The exponential increase in global plastic usage has led to the emergence of nano- and microplastic (NMP) pollution as a pressing environmental issue due to its implications for human and other mammalian health. We have developed methodologies to extract solid materials from human tissue samples by saponification and ultracentrifugation, allowing for highly specific and quantitative analysis of plastics by pyrolysis-gas chromatography and mass spectrometry (Py-GC-MS). As a benchmark, placenta tissue samples were analyzed using fluorescence microscopy and automated particle count, which demonstrated the presence of >1-micron particles and fibers, but not nano-sized plastic particles. Analyses of the samples (n = 10) using attenuated total reflectance-Fourier transform infrared spectroscopy indicated presence of rayon, polystyrene, polyethylene, and unclassified plastic particles. By contrast, among 62 placenta samples, Py-GC-MS revealed that microplastics were present in all participants' placentae, with concentrations ranging widely from 6.5 to 685 µg NMPs per gram of placental tissue, averaging 126.8 ± 147.5 µg/g (mean±SD). Polyethylene was the most prevalent polymer, accounting for 54% of total NMPs and consistently found in nearly all samples (mean 68.8 ± 93.2 µg/g placenta). Polyvinyl chloride and nylon each represented approximately 10% of the NMPs by weight, with the remaining 26% of the composition represented by 9 other polymers. Together, these data demonstrate advancements in the unbiased quantitative resolution of Py-GC-MS applied to the identification and quantification of NMP species at the maternal-fetal interface. This method, paired with clinical metadata, will be pivotal to evaluating potential impacts of NMPs on adverse pregnancy outcomes.

Indexed as

Gas Chromatography-Mass SpectrometryMicroplasticsPlacentaAdultEnvironmental MonitoringFemaleHumansPregnancyPyrolysisMicroplasticsDOHaDenvironmental exposuresgas chromatography/mass spectrometrygestationmicroplasticsnanoplasticspyrolysis

Identifiers

PMID38366932
PMCPMC11057519
OpenAlexW4391897050

What OpenQuestion holds

Textmetadata
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.