Evidence map›Paper›PMID 11309679›Full record

ArticleAmerican journal of human genetics2001

MECP2 mutations in sporadic cases of Rett syndrome are almost exclusively of paternal origin.

R Trappe, F Laccone, J Cobilanschi, M Meins, P Huppke, F Hanefeld, W Engel

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 93 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
93citing papers in PubMed, 1 pooled it
8.7field-weighted citation impact, top 2% 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

93 citing papers in PubMed, 1 synthesis or guideline pooled it, 283 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Review
  6. Article
  7. Rett syndrome.Nature reviews. Disease primers · 2024
    Review
  8. Article
  9. Parental age effects and Rett syndrome.American journal of medical genetics. Part A · 2024
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. A case of JOAG in a patient with Rett syndrome.American journal of ophthalmology case reports · 2023
    Article
  16. Review
  17. Article
  18. Article
  19. Rett Syndrome andNeuropsychiatric disease and treatment · 2022
    Review
  20. Article

33 more citing papers are in PubMed but not listed here.

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.

R TrappeInstitute of Human Genetics, Georg-August Universität Göttingen, Germany.
F Laccone
J Cobilanschi
M Meins
P Huppke
F Hanefeld
W Engel
University of Göttingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rett syndrome (RTT) is an X-linked neurodevelopmental disorder that apparently is lethal in male embryos. RTT almost exclusively affects female offspring and, in 99.5% of all cases, is sporadic and due to de novo mutations in the MECP2 gene. Familial cases of RTT are rare and are due to X-chromosomal inheritance from a carrier mother. We analyzed the parental origin of MECP2 mutations in sporadic cases of RTT, by analysis of linkage between the mutation in the MECP2 gene and intronic polymorphisms in 27 families with 15 different mutations, and we found a high predominance of mutations of paternal origin in 26 of 27 cases (P<.001). The paternal origin was independent of type of mutation and was found for single-base exchanges as well as for deletions. Parents were not of especially advanced age. We conclude that de novo mutations in RTT occur almost exclusively on the paternally derived X chromosome and that this is most probably the cause for the high female:male ratio observed in patients with RTT. Affected males recently have been described in a few cases of familial inheritance. Identification of the parental origin may be useful to distinguish between the sporadic form of RTT and a potentially familial form. This distinction will allow geneticists to offer more-specific counseling and discriminate between higher (maternal origin) and lower (paternal origin) recurrence risk.

Indexed as

Chromosomal Proteins, Non-HistoneRepressor ProteinsAdultAllelesBase SequenceDNA-Binding ProteinsDNA Mutational AnalysisFemaleGene FrequencyGenetic CounselingGenetic LinkageGenetic Predisposition to DiseaseGenotypeHumansIntronsMaleChromosomal Proteins, Non-HistoneDNA-Binding ProteinsMECP2 protein, humanMethyl-CpG-Binding Protein 2Repressor Proteins

Identifiers

PMID11309679
PMCPMC1226090
OpenAlexW2049128446

What OpenQuestion holds

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Read underepoch 390

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.