Evidence map›Paper›PMID 35940219›Full record

ArticleLife sciences2022

Expression of CYP450 enzymes in human fetal membranes and its implications in xenobiotic metabolism during pregnancy.

Ananth Kumar Kammala, Ryan C V Lintao, Natasha Vora, Angela Mosebarger, Kamil Khanipov, George Golovko, Jerome L Yaklic, Morgan R Peltier, Thomas P Conrads, Ramkumar Menon

Open access · greenAbstract read
In one paragraph

Article in Life sciences, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
8.4field-weighted citation impact, top 2% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
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  15. Placenta: an old organ with new functions.Frontiers in immunology · 2024
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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

10 authors at 4 institutions in 2 countries.

Ananth Kumar KammalaDivision of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555-1062, United States of America.
Ryan C V LintaoDivision of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555-1062, United States of America; Department of Biochemistry and Molecular Biology, College of Medicine, University of the Philippines Manila, 547 Pedro Gil St., Manila 1000, Philippines.
Natasha VoraDivision of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555-1062, United States of America.
Angela MosebargerDivision of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555-1062, United States of America.
Kamil KhanipovDepartment of Pharmacology & Toxicology, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555-1062, United States of America.
George GolovkoDepartment of Pharmacology & Toxicology, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555-1062, United States of America.
Jerome L YaklicDepartment of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555-1062, United States of America.
Morgan R PeltierDepartment of Foundations of Medicine, New York University Long Island School of Medicine, 101 Mineola Blvd., Mineola, NY 11501, United States of America.
Thomas P ConradsWomen's Health Research Integrated System, Inova Health System, 8110 Gatehouse Road, Falls Church, VA 22042, United States of America; Department of Gynecologic Surgery and Obstetrics, F. Edward Hebert School of Medicine Uniformed Services University of the Health Sciences, 4301 Jones Bridge Rd, Bethesda, MD 20814, United States of America.
Ramkumar MenonDivision of Basic Science and Translational Research, Department of Obstetrics & Gynecology, The University of Texas Medical Branch at Galveston, 301 University Blvd., Galveston, TX 77555-1062, United States of America. Electronic address: ra2menon@utmb.edu.
The University of Texas Medical Branch at Galveston · USLong Island University · USUniformed Services University of the Health Sciences · USUniversity of the Philippines Manila · PH

Funding

Intercellular interactions define cell migrations and transitions that maintain fetal membrane homeostasisR01HD100729 · NICHD · UNIVERSITY OF TEXAS MED BR GALVESTON · PI HAN, ARUM, MENON, RAMKUMAR · 2020 to 2024
$2.6M
NICHD NIH HHS R01 HD100729
6 · The paper itself

Abstract

backgroundEnvironmental exposure to toxicants is a major risk factor for spontaneous preterm birth (PTB, <37 weeks). Toxicants and drugs administered to patients are metabolized primarily by the cytochrome P450 (CYP450) system. Along with the adult and fetal liver, the placenta, a critical feto-maternal interface organ, expresses CYP450 enzymes that metabolize these xenobiotics. However, the contribution of the fetal membranes, another tissue of the feto-maternal interface, to the expression of CYP450 enzymes and the detoxification of xenobiotics remains unknown.

aimsThis study characterized CYP450 expression and determined the functional activity of CYP450 enzymes in fetal membranes. MAIN

methodsRNA sequencing (RNA-Seq) of placental and fetal membrane tissues and cells was done. Differential expressions of CYP450 genes were compared and validated via reverse transcription-quantitative polymerase chain reaction (RT-qPCR) between the two tissues. The functional activity of major CYP450 enzymes was determined using a fluorophore-based enzymatic assay in the presence and absence of their corresponding inhibitors. KEY

findingsWith the exception of genes that regulate cholesterol metabolism, the expression profile of CYP450 genes was similar between placental and fetal membranes tissues/cells. RT-qPCR analysis confirmed these findings with significant levels of mRNA for major CYP450 genes being detectable in amnion epithelial cells (AECs) and chorion trophoblasts cells (CTCs). Biochemical analyses revealed significant CYP450 enzymatic activities that were sensitive to specific inhibitors for both AECs and CTCs, suggesting that the genes were expressed as functional enzymes. SIGNIFICANCE: This is the first study to determine global expression of CYP450 enzymes in fetal membranes which may play a role in xenobiotic metabolism during pregnancy. Given that many women are exposed to environmental toxins or require medications during pregnancy, a better understanding of their role in metabolism is required to develop safer therapeutics and prevent adverse outcomes.

Indexed as

Premature BirthXenobioticsAdultCholesterolCytochrome P-450 Enzyme SystemExtraembryonic MembranesFemaleHumansInfant, NewbornPlacentaPregnancyRNA, MessengerCholesterolCytochrome P-450 Enzyme SystemRNA, MessengerXenobioticsCytochrome P450Drug metabolismFetal membranePharmacokineticsPlacentaPregnancyToxicant metabolism

Identifiers

PMID35940219
PMCPMC12358170
OpenAlexW4290047300

What OpenQuestion holds

Textmetadata
LicenceTDM
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.