Evidence map›Paper›PMID 8389097›Full record

ArticleAmerican journal of human genetics1993

Molecular genetic and genetic correlations in sodium channelopathies: lack of founder effect and evidence for a second gene.

J Wang, J Zhou, S M Todorovic, W G Feero, F Barany, R Conwit, I Hausmanowa-Petrusewicz, A Fidzianska, K Arahata, H B Wessel

Abstract readCase Reports
In one paragraph

Article in American journal of human genetics, 1993. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Sodium Channelopathies of Skeletal Muscle.Handbook of experimental pharmacology · 2018
    Review
  3. Potassium Channels in Epilepsy.Cold Spring Harbor perspectives in medicine · 2016
    Review
  4. Article
  5. Article
  6. Article
  7. Investigation of muscle disease.Journal of neurology, neurosurgery, and psychiatry · 1996
    Review
  8. Article
  9. Article
  10. Article
  11. 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

10 authors at 1 institution in 1 country.

J WangDepartment of Molecular Genetics and Biochemistry, University of Pittsburgh School of Medicine, PA 15261.
J Zhou
S M Todorovic
W G Feero
F Barany
R Conwit
I Hausmanowa-Petrusewicz
A Fidzianska
K Arahata
H B Wessel
University of Pittsburgh · US

Funding

MOLECULAR BASIS FOR PERIODIC PARALYSISR01AR041025 · NIAMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI HOFFMAN, ERIC P · 1991 to 1993
–
NIAMS NIH HHS AR41025NIGMS NIH HHS GM41337
6 · The paper itself

Abstract

We present a correlation of molecular genetic data (mutations) and genetic data (dinucleotide-repeat polymorphisms) for a cohort of seven hyperkalemic periodic paralysis (HyperPP) and two paramyotonia congenita (PC) families from diverse ethnic backgrounds. We found that each of three previously identified point mutations of the adult skeletal muscle sodium-channel gene occurred on two different dinucleotide-repeat haplotypes. These results indicate that dinucleotide-repeat haplotypes are not predictive of allelic heterogeneity in sodium channelopathies, contrary to previous suggestions. In addition, we identified a HyperPP pedigree in which the dominant disorder was not linked to the sodium-channel gene. Thus, a second locus can give rise to a similar clinical phenotype. Some individuals in this pedigree exhibited a base change causing the nonconservative substitution of an evolutionarily conserved amino acid. Because this change was not present in 240 normal chromosomes and was near another HyperPP mutation, is fulfilled the most commonly used criteria for being a mutation rather than a polymorphism. However, linkage studies using single-strand conformation polymorphism-derived and sequence-derived haplotypes excluded this base change as a causative mutation: these data serve as a cautionary example of potential pitfalls in the delineation of change-of-function point mutations.

Indexed as

AdultChild, PreschoolCohort StudiesFemaleHaplotypesHumansInfantMaleMiddle AgedMusclesMyotonia CongenitaOligodeoxyribonucleotidesParalyses, Familial PeriodicPedigreePolymorphism, GeneticRepetitive Sequences, Nucleic AcidOligodeoxyribonucleotidesSodium Channels

Identifiers

PMID8389097
PMCPMC1682261
OpenAlexW1526006015

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.