Evidence map›Paper›PMID 9399888›Full record

ArticleAmerican journal of human genetics1997

Linkage of bipolar affective disorder to chromosome 18 markers in a new pedigree series.

F J McMahon, P J Hopkins, J Xu, M G McInnis, S Shaw, L Cardon, S G Simpson, D F MacKinnon, O C Stine, R Sherrington and 2 more

Abstract readMulticenter Study
In one paragraph

Article in American journal of human genetics, 1997. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
–field-weighted citation impact
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

29 citing papers in PubMed.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Article
  6. Genetics of bipolar disorder.Dialogues in clinical neuroscience · 2008
    Review
  7. Genetics of major mood disorders.Psychiatry (Edgmont (Pa. : Township)) · 2004
    Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. 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

12 authors.

F J McMahonJohns Hopkins University School of Medicine, Baltimore, MD, USA. fmcm@welchlink.welch.jhu.edu
P J Hopkins
J Xu
M G McInnis
S Shaw
L Cardon
S G Simpson
D F MacKinnon
O C Stine
R Sherrington
D A Meyers
J R DePaulo

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several groups have reported evidence suggesting linkage of bipolar affective disorder (BPAD) to chromosome 18. We have reported data from 28 pedigrees that showed linkage to marker loci on 18p and to loci 40 cM distant on 18q. Most of the linkage evidence derived from families with affected phenotypes in only the paternal lineage and from marker alleles transmitted on the paternal chromosome. We now report results from a series of 30 new pedigrees (259 individuals) genotyped for 13 polymorphic markers spanning chromosome 18. Subjects were interviewed by a psychiatrist and were diagnosed by highly reliable methods. Genotypes were generated with automated technology and were scored blind to phenotype. Affected sib pairs showed excess allele sharing at the 18q markers D18S541 and D18S38. A parent-of-origin effect was observed, but it was not consistently paternal. No robust evidence of linkage was detected for markers elsewhere on chromosome 18. Multipoint nonparametric linkage analysis in the new sample combined with the original sample of families supports linkage on chromosome 18q, but the susceptibility gene is not well localized.

Indexed as

BaltimoreBipolar DisorderChromosomes, Human, Pair 18Disease SusceptibilityGenetic LinkageGenotypeHumansIowaPedigreePhenotypeSingle-Blind Method

Identifiers

PMID9399888
PMCPMC1716088

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.