SDS: Khatri Sikh Diabetes Study Dharambir K. Sanghera, University of Oklahoma, Principal Investigator SDS PublicationsGenome-wide linkage scan to identify loci associated with type 2 diabetes and blood lipid phenotypes in the Sikh Diabetes Study.TCF7L2 polymorphisms are associated with type 2 diabetes in Khatri Sikhs from North India: genetic variation affects lipid levels.The Khatri Sikh Diabetes Study (SDS): study design, methodology, sample collection, and initial results.