Evidence map›Paper›PMID 31703578›Full record

ArticleJournal of biomedical science2019

Analysis of polymorphisms, promoter methylation, and mRNA expression profile of maternal and placental P53 and P21 genes in preeclamptic and normotensive pregnant women.

Mahdiyeh Harati-Sadegh, Leila Kohan, Batool Teimoori, Mehrnaz Mehrabani, Saeedeh Salimi

Open access · diamondAbstract read
In one paragraph

Article in Journal of biomedical science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.2field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 19 citations in OpenAlex.

  1. Trial
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  4. Preeclampsia as a Study Model for Aging: The Klotho Gene Paradigm.International journal of molecular sciences · 2025
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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

5 authors at 3 institutions in 1 country.

Mahdiyeh Harati-SadeghGenetic of Non-Communicable Disease Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
Leila KohanDepartment of Biology, Arsanjan Branch, Islamic Azad University, Arsanjan, Iran.
Batool TeimooriDepartment of Obstetrics and Gynecology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran.
Mehrnaz MehrabaniPhysiology Research Center, Institute of Basic and Clinical Physiology Sciences, Kerman University of Medical Sciences, Kerman, Iran.
Saeedeh SalimiDepartment of Clinical Biochemistry, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran. sasalimi@yahoo.com.
Zahedan University of Medical Sciences · IRIslamic Azad University of Arsanjan · IRKerman University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPreeclampsia (PE), as a multisystem disorder, is associated with maternal hypertension and proteinuria. Apoptosis seems to be involved in the pathophysiology of PE, although its precise pathogenic mechanisms are not well established. In this study, we aimed to identify the association between maternal TP53-rs1042522, P21-rs1801270, and P21-rs1059234 polymorphisms and PE. In addition, we examined the effects of promoter methylation and TP53 and P21 polymorphisms on placental mRNA expression in PE women.

methodsThe blood of 226 PE women and 228 normotensive pregnant women was examined in this study. In addition, the placentas were genotyped in 109 PE and 112 control women. The methylation status was assessed by a methylation-specific PCR assay, while mRNA expression was examined via Quantitative Real Time PCR.

resultsThe maternal and placental P21-rs1801270 CA genotype had a significant association with the reduced risk of PE. In the dominant, recessive, and allelic models, maternal/placental P21-rs1059234 polymorphism had no statistically significant association with the risk of PE. On the other hand, the reduced risk of PE was associated with maternal, but not placental TP53-rs1042522 polymorphism in the dominant and recessive models. The maternal and placental P21-rs1801270 polymorphism was associated with PE risk. The maternal P21 T

conclusionIn conclusion, P21-rs1801270 and TP53-rs1042522 polymorphisms were involved in reduced risk of PE. P21-rs1801270 was associated with decreased P21 mRNA expression. The hyper-methylation of P21 and TP53 genes in the promoter region was associated with a higher PE risk.

Indexed as

DNA MethylationPolymorphism, Single NucleotideTranscriptomeAdultCyclin-Dependent Kinase Inhibitor p21FemaleHumansPlacentaPre-EclampsiaPregnancyPromoter Regions, GeneticRNA, MessengerTumor Suppressor Protein p53Young AdultCyclin-Dependent Kinase Inhibitor p21RNA, MessengerTP53 protein, humanTumor Suppressor Protein p53MethylationP21P53PlacentaPolymorphismPreeclampsia

Identifiers

PMID31703578
PMCPMC6842146
OpenAlexW2984689747

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Registered trials

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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.