Evidence map›Paper›PMID 8571955›Full record

ArticleAmerican journal of human genetics1996

Modulation of the phenotype in dominant erythropoietic protoporphyria by a low expression of the normal ferrochelatase allele.

L Gouya, J C Deybach, J Lamoril, V Da Silva, C Beaumont, B Grandchamp, Y Nordmann

Open access · greenAbstract read
In one paragraph

Article in American journal of human genetics, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

25 citing papers in PubMed, 102 citations in OpenAlex.

  1. Review
  2. Erythropoietic protoporphyrias: Pathogenesis, diagnosis and management.Liver international : official journal of the International Association for the Study of the Liver · 2025
    Review
  3. Article
  4. Review
  5. Review
  6. Heme biosynthesis and the porphyrias.Molecular genetics and metabolism · 2019
    Review
  7. Mutation in humanProceedings of the National Academy of Sciences of the United States of America · 2017
    Article
  8. Review
  9. Genetic modifiers and oligogenic inheritance.Cold Spring Harbor perspectives in medicine · 2015
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
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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 1 institution in 1 country.

L GouyaCentre Français des Porphyries, INSERM U409, Hôpital Louis Mourier, Colombes, France.
J C Deybach
J Lamoril
V Da Silva
C Beaumont
B Grandchamp
Y Nordmann
Inserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Erythropoietic protoporphyria (EPP) is a monogenic inherited disorder of the heme biosynthetic pathway due to ferrochelatase (FC) deficiency. EPP is generally considered to be transmitted as an autosomal dominant disease with incomplete penetrance, although autosomal recessive inheritance has been documented at the enzymatic and molecular level in some families. In the dominant form of EPP, statistical analysis of FC activities documented a significantly lower mean value in patients than in asymptomatic carriers, suggesting a more complex mode of inheritance. To account for these findings, we tested a multiallelic inheritance model in one EPP family in which the enzymatic data were compatible with this hypothesis. In this EPP family, the specific FC gene mutation was an exon 10 skipping (delta Ex10), resulting from a G deletion within the exon 10 consensus splice donor site. The segregation of all FC alleles within the family was followed using the delta Ex10 mutation and a new intragenic dimorphism (1520 C/T). mRNAs transcribed from each FC allele were then subjected to relative quantification by a primer extension assay and to absolute quantification by a ribonuclease protection assay. The data support the hypothesis that in this family the EPP phenotype results from the coinheritance of a low output normal FC allele and a mutant delta Ex10 allele.

Indexed as

Base SequenceCells, CulturedDNA PrimersElectrophoresis, Polyacrylamide GelFemaleFerrochelataseGene ExpressionGenes, DominantGenotypeHemeHumansMaleMolecular Sequence DataMutationPedigreePhenotypeDNA PrimersFerrochelataseHeme

Identifiers

PMID8571955
PMCPMC1914527
OpenAlexW1591206419

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.