Evidence map›Paper›PMID 26167679›Full record

ArticlePloS one2015

Mutation in BMPR2 Promoter: A 'Second Hit' for Manifestation of Pulmonary Arterial Hypertension?

Rebecca Rodríguez Viales, Christina A Eichstaedt, Nicola Ehlken, Christine Fischer, Mona Lichtblau, Ekkehard Grünig, Katrin Hinderhofer

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.3field-weighted citation impact, top 8% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Genes · 2020
    Article
  5. Article
  6. Epigenetic Inheritance Underlying Pulmonary Arterial Hypertension.Arteriosclerosis, thrombosis, and vascular biology · 2019
    Review
  7. Insights on the epigenetic mechanisms underlying pulmonary arterial hypertension.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2018
    Review
  8. Article
  9. Article
  10. Article
  11. Genetics of Pulmonary Arterial Hypertension.Seminars in respiratory and critical care medicine · 2017
    Review
  12. Article
  13. Article
  14. Article
  15. 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

7 authors at 2 institutions in 1 country.

Rebecca Rodríguez VialesUniversity Hospital Heidelberg, Centre for pulmonary hypertension of the Thoraxclinic Heidelberg, Heidelberg, Germany; Heidelberg University, Institute of Human Genetics, Heidelberg, Germany.
Christina A EichstaedtUniversity Hospital Heidelberg, Centre for pulmonary hypertension of the Thoraxclinic Heidelberg, Heidelberg, Germany.
Nicola EhlkenUniversity Hospital Heidelberg, Centre for pulmonary hypertension of the Thoraxclinic Heidelberg, Heidelberg, Germany.
Christine FischerHeidelberg University, Institute of Human Genetics, Heidelberg, Germany.
Mona LichtblauUniversity Hospital Heidelberg, Centre for pulmonary hypertension of the Thoraxclinic Heidelberg, Heidelberg, Germany.
Ekkehard GrünigUniversity Hospital Heidelberg, Centre for pulmonary hypertension of the Thoraxclinic Heidelberg, Heidelberg, Germany.
Katrin HinderhoferHeidelberg University, Institute of Human Genetics, Heidelberg, Germany.
Heidelberg University · DEUniversity Hospital Heidelberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHereditary pulmonary arterial hypertension (HPAH) can be caused by autosomal dominant inherited mutations of TGF-β genes, such as the bone morphogenetic protein receptor 2 (BMPR2) and Endoglin (ENG) gene. Additional modifier genes may play a role in disease manifestation and severity. In this study we prospectively assessed two families with known BMPR2 or ENG mutations clinically and genetically and screened for a second mutation in the BMPR2 promoter region.

methodsWe investigated the BMPR2 promoter region by direct sequencing in two index-patients with invasively confirmed diagnosis of HPAH, carrying a mutation in the BMPR2 and ENG gene, respectively. Sixteen family members have been assessed clinically by non-invasive methods and genetically by direct sequencing.

resultsIn both index patients with a primary BMPR2 deletion (exon 2 and 3) and Endoglin missense variant (c.1633G>A, p.(G545S)), respectively, we detected a second mutation (c.-669G>A) in the promoter region of the BMPR2 gene. The index patients with 2 mutations/variants were clinically severely affected at early age, whereas further family members with only one mutation had no manifest HPAH.

conclusionThe finding of this study supports the hypothesis that additional mutations may lead to an early and severe manifestation of HPAH. This study shows for the first time that in the regulatory region of the BMPR2 gene the promoter may be important for disease penetrance. Further studies are needed to assess the incidence and clinical relevance of mutations of the BMPR2 promoter region in a larger patient cohort.

Indexed as

MutationPromoter Regions, GeneticAdultBone Morphogenetic Protein Receptors, Type IICardiac CatheterizationEchocardiography, DopplerFemaleHumansHypertension, PulmonaryMalePedigreeBMPR2 protein, humanBone Morphogenetic Protein Receptors, Type II

Identifiers

PMID26167679
PMCPMC4500409
OpenAlexW1492971607

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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.