Diabetes Genetics Initiative

Study (initial methods released Feb 2007)

Sample inclusion and exclusion criteria:

Cases: Cases were selected according to ADA (2003) definitions of type 2 diabetes (fasting plasma glucose > 7.0 mM or 2 hour postload glucose during an OGTT >11.1 mM). To avoid confounding with type 1 diabetes, GAD Ab positive patients were excluded. To exclude MODY diabetes, subjects from families with mutations in known MODY diabetes genes and diabetic individuals with onset age < 35 years were excluded.

Plotting Genome-Wide Association Results

The interpretation of genome-wide association results can be greatly facilitated by visualization.

Study

Sample inclusion and exclusion criteria:

Cases: Cases were selected according to ADA (2003) definitions of type 2 diabetes (fasting plasma glucose > 7.0 mM or 2 hour postload glucose during an OGTT >11.1 mM). To avoid confounding with type 1 diabetes, GAD Ab positive patients were excluded. To exclude MODY diabetes, subjects from families with mutations in known MODY diabetes genes and diabetic individuals with onset age < 35 years were excluded.

References

i Fan JB, Oliphant A, Shen R, Kermani BG, Garcia F, Gunderson KL, Hansen M, Steemers F, Butler SL, Deloukas P, Galver L, Hunt S, McBride C, Bibikova M, Rubano T, Chen J, Wickham E, Doucet D, Chang W, Campbell D, Zhang B, Kruglyak S, Bentley D, Haas J, Rigault P, Zhou L, Stuelpnagel J, Chee MS (2003) Highly parallel SNP genotyping. Cold Spring Harb Symp Quant Biol. 68, 69-78.

Study Design and Methods

Characteristics of cases and controls

Summary

We do not find significant evidence for association anywhere in the genome:

A Whole Genome Admixture Scan for Type 2 Diabetes in African Americans

Project leaders

David Reich, Broad Institute, Harvard (principal investigator)
Jim Wilson, Jackson Heart Study (principal investigator)
Herman Taylor, Jackson Heart Study
Brian Henderson, Multi-Ethnic Cohort
Laurence Kolonel, Multi-Ethnic Cohort

Project Members

Gavin McDonald, Broad Institute
Meggie (Ermekgul) Akylbekova. Jackson Heart Study