Evidence map›Paper›PMID 26846412›Full record

ArticleBMC pregnancy and childbirth2016

Ancestry informative markers and selected single nucleotide polymorphisms in immunoregulatory genes on preterm labor and preterm premature rupture of membranes: a case control study.

Bruna Ribeiro de Andrade Ramos, Niele Dias Mendes, Aline Aki Tanikawa, Marcos Antônio Trindade Amador, Ney Pereira Carneiro dos Santos, Sidney Emanuel Batista dos Santos, Erick C Castelli, Steven S Witkin, Márcia Guimarães da Silva

Open access · goldAbstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 10% 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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pharmacogenomic diversity in Amazonian Indigenous populations: implications for Berlin-Frankfurt-Münster acute lymphoblastic leukemia therapy.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
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  5. Association ofDiseases (Basel, Switzerland) · 2026
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  9. Protective Effect ofInternational journal of molecular sciences · 2024
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  10. Role ofJournal of clinical medicine · 2024
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  11. Review
  12. Article
  13. Article
  14. Article
  15. Pharmacogenomic Profile of Amazonian Amerindians.Journal of personalized medicine · 2022
    Article
  16. Article
  17. Systematic review of preterm birth multi-omic biomarker studies.Expert reviews in molecular medicine · 2022
    Review
  18. Article
  19. Article
  20. Article
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

9 authors at 3 institutions in 2 countries.

Bruna Ribeiro de Andrade RamosDepartment of Pathology, Botucatu Medical School, São Paulo State University - UNESP, Distrito de Rubião Júnior, 18618-970, Botucatu, São Paulo, Brazil. bru_rar@hotmail.com.
Niele Dias MendesDepartment of Pathology, Botucatu Medical School, São Paulo State University - UNESP, Distrito de Rubião Júnior, 18618-970, Botucatu, São Paulo, Brazil. nieledm@gmail.com.
Aline Aki TanikawaBlood Transfusion Center, Botucatu Medical School, São Paulo State University - UNESP, Botucatu, São Paulo, Brazil. alineaki@gmail.com.
Marcos Antônio Trindade AmadorDepartment of Genetics, Biological Sciences Institute, Pará Federal University - UFPA, Belém, Pará, Brazil. marcosmata52@yahoo.com.br.
Ney Pereira Carneiro dos SantosDepartment of Genetics, Biological Sciences Institute, Pará Federal University - UFPA, Belém, Pará, Brazil. sidneysantos@ufpa.br.
Sidney Emanuel Batista dos SantosDepartment of Genetics, Biological Sciences Institute, Pará Federal University - UFPA, Belém, Pará, Brazil. sidneysantos@ufpa.br.
Erick C CastelliDepartment of Pathology, Botucatu Medical School, São Paulo State University - UNESP, Distrito de Rubião Júnior, 18618-970, Botucatu, São Paulo, Brazil. erick.castelli@gmail.com.
Steven S WitkinDepartment of Obstetrics and Gynecology, Weill Cornell Medical College, New York, NY, USA. switkin@med.cornell.edu.
Márcia Guimarães da SilvaDepartment of Pathology, Botucatu Medical School, São Paulo State University - UNESP, Distrito de Rubião Júnior, 18618-970, Botucatu, São Paulo, Brazil. mgsilva@fmb.unesp.br.
Universidade Estadual Paulista (Unesp) · BRUniversidade Federal do Pará · BRCornell University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundA genetic predisposition to Preterm Labor (PTL) and Preterm Premature Rupture of Membranes (PPROM) has been suggested; however the relevance of polymorphisms and ancestry to susceptibility to PTL and PPROM in different populations remains unclear. The aim of this study was to evaluate the contribution of maternal and fetal SNPs in the IL1B, IL6, IL6R, TNFA, TNFR, IL10, TLR2, TLR4, MMP9, TIMP1 and TIMP2 genes and the influence of ancestry background in the susceptibility to PTL or PPROM in Brazilian women.

methodsCase-control study conducted at a tertiary hospital in São Paulo State, Brazil. We included women with PTL or PPROM and their babies (PTL: 136 women and 88 babies; PPROM: 65 women and 44 babies). Control group included 402 mother-babies pairs of term deliveries. Oral swabs were collected for identification of AIMs by fragment analysis and SNPs by Taqman® SNP Genotyping Assays and PCR. Linkage Disequilibrium and Hardy-Weinberg proportions were evaluated using Genepop 3.4. Haplotypes were inferred using the PHASE algorithm. Allele, genotype and haplotype frequencies were compared by Fisher's exact test or χ (2) and Odds Ratio. Logistic regression was performed. Clinical and sociodemographic data were analyzed by Fisher's exact test and Mann-Whitney.

resultsPTL was associated with European ancestry and smoking while African ancestry was protective. The fetal alleles IL10-592C (rs800872) and IL10-819C (rs1800871) were also associated with PTL and the maternal haplotype TNFA-308G-238A was protective. Maternal presence of IL10-1082G (rs1800896) and TLR2A (rs4696480) alleles increased the risk for PPROM while TNFA-238A (rs361525) was protective. Family history of PTL/PPROM was higher in cases, and time to delivery was influenced by IL1B-31T (rs1143627) and TLR4-299G (rs4986790).

conclusionThere is an association between European ancestry and smoking and PTL in our Brazilian population sample. The presence of maternal or fetal alleles that modify the inflammatory response increase the susceptibility to PTL and PPROM. The family history of PTL/PPROM reinforces a role for genetic polymorphisms in susceptibility to these outcomes.

Indexed as

PedigreePolymorphism, Single NucleotideAdultAllelesBlack PeopleBrazilCase-Control StudiesCytokinesFemaleGenetic MarkersHaplotypesHumansInfant, NewbornInterleukin-10Obstetric Labor, PrematurePregnancyCytokinesGenetic MarkersIL10 protein, humanInterleukin-10TLR2 protein, humanTNF protein, humanToll-Like Receptor 2Tumor Necrosis Factor-alpha

Identifiers

PMID26846412
PMCPMC4743423
OpenAlexW2270829663

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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.