Evidence map›Paper›PMID 23002110›Full record

ArticleMolecular human reproduction2013

The maternal HLA-G 1597ΔC null mutation is associated with increased risk of pre-eclampsia and reduced HLA-G expression during pregnancy in African-American women.

Dagan A Loisel, Christine Billstrand, Kathleen Murray, Kristen Patterson, Tinnakorn Chaiworapongsa, Roberto Romero, Carole Ober

Open access · bronzeAbstract read
In one paragraph

Article in Molecular human reproduction, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 2 pooled it
1.3field-weighted citation impact, top 21% 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

28 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

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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

7 authors at 3 institutions in 1 country.

Dagan A LoiselDepartment of Human Genetics, The University of Chicago, 920 E 58th St., Chicago, IL 60637, USA.
Christine Billstrand
Kathleen Murray
Kristen Patterson
Tinnakorn Chaiworapongsa
Roberto Romero
Carole Ober
University of Chicago · USEunice Kennedy Shriver National Institute of Child Health and Human Development · USUnited States Department of Health and Human Services · US

Funding

The Role Of Subclinical Infection And Cytokines In Preterm ParturitionZIAHD002400 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI ROMERO, ROBERTO · 2009 to 2025
$254.4M
TRANSLATIONAL RESEARCH UNIVERSITY OF CHICAGO: CLINICAL TRIALSUL1RR024999 · NCRR · UNIVERSITY OF CHICAGO · PI SOLWAY, JULIAN · 2007 to 2011
$25.3M
RESEARCH TRAINING IN RESPIRATORY BIOLOGYT32HL007605 · NHLBI · UNIVERSITY OF CHICAGO · PI Yun Fang, Gokhan M. Mutlu · 1985 to 2026
$18.1M
TISSUE PROCUREMENT AND GENOTYPING COREP01HD049480 · NICHD · UNIVERSITY OF KANSAS MEDICAL CENTER · PI HUNT, JOAN SHERAR · 2007 to 2011
$4.9M
Sex-specific genetic architecture of asthma risk in childrenF32HL095268 · NHLBI · UNIVERSITY OF CHICAGO · PI LOISEL, DAGAN A. · 2009 to 2010
$77k
NCRR NIH HHS UL1 RR024999NCRR NIH HHS UL1RR024999NHLBI NIH HHS F32 HL095268NHLBI NIH HHS F32HL095268NHLBI NIH HHS T32 HL007605NICHD NIH HHS P01 HD049480NICHD NIH HHS P01HD049480
6 · The paper itself

Abstract

The non-classical major histocompatibility complex molecule, human leukocyte antigen (HLA)-G, is thought to contribute to maternal immune tolerance and successful placentation during pregnancy. Genetic polymorphisms in HLA-G are known to influence expression levels as well as the relative expression of individual protein isoforms. As diminished or aberrant HLA-G expression patterns may contribute to the development of certain pregnancy complications, we sought to investigate the association between functional HLA-G polymorphisms and the risk of pre-eclampsia (PE) in African-American women. The association between maternal and fetal genotype at six HLA-G polymorphisms and risk of PE was assessed in 372 pregnancies (314 normotensive; 58 pre-eclamptic). We observed an elevated risk of PE (P = 0.00027) in pregnancies where the mother carried the 1597ΔC allele, a null allele that abolishes expression of full-length HLA-G isoforms. Furthermore, the frequency of the maternal 1597ΔC allele was highest in the subset of pre-eclamptic pregnancies that were delivered preterm, suggesting an association between the null allele and the severity of PE. We then replicated the association between higher maternal 1597ΔC allele frequency and increased severity of PE (P = 0.038) in an independent sample of 533 African-American women. Finally, to investigate the mechanistic basis of this association, we measured circulating soluble HLA-G (sHLA-G) concentrations in maternal serum collected during pregnancy in 51 healthy, normotensive African-American control women and found significantly lower levels in women carrying the 1597ΔC allele (P = 0.012). These results demonstrate that maternal HLA-G genotype is significantly associated with risk of PE in African-American women and is predictive of circulating sHLA-G levels during pregnancy.

Indexed as

AllelesBlack or African AmericanGene DeletionAdultBiomarkersCase-Control StudiesFemaleGene Expression RegulationGene FrequencyGenetic Predisposition to DiseaseHLA-G AntigensHumansInfant, NewbornPolymorphism, GeneticPre-EclampsiaPregnancyBiomarkersHLA-G Antigens

Identifiers

PMID23002110
PMCPMC3579410
OpenAlexW2104359085

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.