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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.
Diabetologia 54, 2038-2046 (2011)
AIMS/HYPOTHESIS: We 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. METHODS: We 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. RESULTS: In 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/INTERPRETATION: We 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.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
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6.973
1.801
70
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Anmerkungen
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Genome-wide association; Hispanics; Meta-analysis; Type 2 diabetes
Sprache
englisch
Veröffentlichungsjahr
2011
HGF-Berichtsjahr
2011
ISSN (print) / ISBN
0012-186X
e-ISSN
1432-0428
Zeitschrift
Diabetologia
Quellenangaben
Band: 54,
Heft: 8,
Seiten: 2038-2046
Verlag
Springer
Verlagsort
Berlin ; Heidelberg [u.a.]
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Epidemiology (EPI)
Research Unit Molecular Epidemiology (AME)
Institute of Genetic Epidemiology (IGE)
Institute of Human Genetics (IHG)
Research Unit Molecular Epidemiology (AME)
Institute of Genetic Epidemiology (IGE)
Institute of Human Genetics (IHG)
POF Topic(s)
30202 - Environmental Health
30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
30503 - Chronic Diseases of the Lung and Allergies
30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
30503 - Chronic Diseases of the Lung and Allergies
Forschungsfeld(er)
Genetics and Epidemiology
PSP-Element(e)
G-504000-002
G-504200-001
G-504100-001
G-503900-001
G-500700-001
G-504200-001
G-504100-001
G-503900-001
G-500700-001
PubMed ID
21573907
Erfassungsdatum
2011-12-31