Evidence map›Paper›PMID 21573907›Full record

SynthesisDiabetologia2011

Genome-wide association study of type 2 diabetes in a sample from Mexico City and a meta-analysis of a Mexican-American sample from Starr County, Texas.

E J Parra, J E Below, S Krithika, A Valladares, J L Barta, N J Cox, C L Hanis, N Wacher, J Garcia-Mena, P Hu and 6 more

Abstract readMeta-Analysis
In one paragraph

Synthesis in Diabetologia, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 12 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 12 pooled it
–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

65 citing papers in PubMed, 12 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Pooled it
  10. Pooled it
  11. Pooled it
  12. Pooled it
  13. Trial
  14. Trial
  15. Exploring the Association ofBiomolecules · 2025
    Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article

5 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

16 authors.

E J ParraDepartment of Anthropology, University of Toronto at Mississauga, 3359 Mississauga Road North, Mississauga, ON, Canada, L5L 1C6. esteban.parra@utoronto.ca
J E Below
S Krithika
A Valladares
J L Barta
N J Cox
C L Hanis
N Wacher
J Garcia-Mena
P Hu
M D Shriver
Diabetes Genetics Replication and Meta-analysis (DIAGRAM) Consortium
J Kumate
P M McKeigue
J Escobedo
M Cruz

Funding

Genome-wide Association Mapping of Metabolic, Lung and Cardiovascular PhenotypesU01HL084715 · NHLBI · UNIVERSITY OF CHICAGO · PI COX, NANCY J · 2006 to 2008
$836k
CIHRNHLBI NIH HHS U01 HL084715
6 · The paper itself

Abstract

aims/hypothesisWe report a genome-wide association study of type 2 diabetes in an admixed sample from Mexico City and describe the results of a meta-analysis of this study and another genome-wide scan in a Mexican-American sample from Starr County, TX, USA. The top signals observed in this meta-analysis were followed up in the Diabetes Genetics Replication and Meta-analysis Consortium (DIAGRAM) and DIAGRAM+ datasets.

methodsWe analysed 967 cases and 343 normoglycaemic controls. The samples were genotyped with the Affymetrix Genome-wide Human SNP array 5.0. Associations of genotyped and imputed markers with type 2 diabetes were tested using a missing data likelihood score test. A fixed-effects meta-analysis including 1,804 cases and 780 normoglycaemic controls was carried out by weighting the effect estimates by their inverse variances.

resultsIn the meta-analysis of the two Hispanic studies, markers showing suggestive associations (p < 10(-5)) were identified in two known diabetes genes, HNF1A and KCNQ1, as well as in several additional regions. Meta-analysis of the two Hispanic studies and the recent DIAGRAM+ dataset identified genome-wide significant signals (p < 5 × 10(-8)) within or near the genes HNF1A and CDKN2A/CDKN2B, as well as suggestive associations in three additional regions, IGF2BP2, KCNQ1 and the previously unreported C14orf70. CONCLUSIONS/

interpretationWe observed numerous regions with suggestive associations with type 2 diabetes. Some of these signals correspond to regions described in previous studies. However, many of these regions could not be replicated in the DIAGRAM datasets. It is critical to carry out additional studies in Hispanic and American Indian populations, which have a high prevalence of type 2 diabetes.

Indexed as

AdultAgedDiabetes Mellitus, Type 2FemaleGenome-Wide Association StudyGenotypeHispanic or LatinoHumansMaleMexican AmericansMexicoMiddle AgedPolymorphism, Single NucleotideTexasYoung Adult

Identifiers

PMID21573907
PMCPMC3818640

What OpenQuestion holds

Textmetadata
LicenceTDM
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.