ArticleJournal of pregnancy2021
Histological Changes Observed in Placentas Exposed to Medication-Assisted Treatment.
Article in Journal of pregnancy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled 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.
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.
Who cites it
11 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.
- Risk Factors and Outcomes Associated With Delayed Villous Maturation in Placenta: A Systematic Review and Meta-Analysis.BJOG : an international journal of obstetrics and gynaecology · 2026Pooled it
- Maternal opioid use and hepatitis C infection disrupt the placental immune landscape and structure.JCI insight · 2026Article
- Delineating the effects of prenatal oxycodone exposure and melatonin treatment on placental and fetal outcomes in pregnant rats.bioRxiv : the preprint server for biology · 2026Article
- Placental MRI texture features in prenatal exposure to opioids and tobacco.Scientific reports · 2025Article
- The placenta as a window into neonatal brain injury.Seminars in perinatology · 2025Review
- Prenatal fentanyl exposure affects social dominance and myelination patterns in the adult mouse brain.Neuropharmacology · 2025Article
- Maternal opioid use with and without hepatitis C infection disrupts the structure and immune landscape of the maternal-fetal interface.bioRxiv : the preprint server for biology · 2025Article
- Effects of oxycodone on placental lineages: Evidence from the transcriptome profile of mouse trophoblast giant cells.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Placental volume in pregnant women with opioid use: prenatal MRI assessment.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2023Article
- The impact of opioids on the transcriptional landscape of human villous trophoblasts.Placenta · 2023Article
- The placenta as a target of opioid drugs†.Biology of reproduction · 2022Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionTo compare the effects of medication-assisted treatment on the placenta in pregnant women with opioid use disorder and uncomplicated pregnancies.
methodsThis is a case-controlled study of pregnant women utilizing medication-assisted treatment, buprenorphine or methadone, which were matched to healthy uncomplicated controls by gestational age. Placental evaluations and neonatal outcomes were evaluated. Data analysis performed standard statistics and relative risk analysis with a
resultsThere were 143 women who met the inclusion criteria: 103 utilizing MAT, 41 buprenorphine and 62 methadone, and 40 uncomplicated matched healthy controls. The incidence of delayed villous maturation was 36% in the medication-assisted group compared with 10% in controls (RR 3.6: 95% CI 1.37-9.43;
conclusionMedication-exposed pregnancies have a greater incidence of delayed villous maturation, a larger placental size, and a decreased fetoplacental weight ratio compared to the healthy controls. Larger long-term follow-up studies to evaluate outcomes with the presence of delayed villous maturation are needed.
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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.