The training goal for this ambitious proposal is to provide the fellow, in a stepwise fashion, with increasing levels of independence and responsibility in an interdisciplinary study of complex disease. The research goal of this proposal is to identify the genetic variants which confer susceptibility to type 2 diabetes mellitus (T2DM) in African Americans and gain insight into their mechanism of action. This goal will be attained through 1) Replication of significant findings identified from the genome wide association (GWA) analysis of >650,000 SNPs for association with T2DM, 2) Validation of T2DM associations and exploration of the physiological mechanism through which these variants modulate T2DM susceptibility in additional populations, 3) Fine mapping of the genomic regions consistently showing association with T2DM and identifying trait predisposing variants and ultimately 4) Utilize molecular biology techniques to determine the biological mechanism through which identified T2DM-susceptibility variants exert their effects in vivo. These experiments will provide confirmation of involvement in disease progression and determine the role of these loci in vivo. Taken together, this proposal integrates modern genomic approaches, clinical methodologies and biochemical assays to increase the likelihood of identifying genes which contribute to T2DM susceptibilty. With this approach, the fellow will be supported to develop independence through a comprehensive network of interactive researchers in the fields of epidemiology, statistics, biochemistry, physiology. This will provide the skills and experience to independently direct an interdisciplinary study of the genetics of common disease.

Agency
National Institute of Health (NIH)
Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Type
Research Transition Award (R00)
Project #
4R00DK081350-02
Application #
8066818
Study Section
Special Emphasis Panel (NSS)
Program Officer
Mckeon, Catherine T
Project Start
2010-07-01
Project End
2013-06-30
Budget Start
2010-07-01
Budget End
2011-06-30
Support Year
2
Fiscal Year
2010
Total Cost
$245,400
Indirect Cost
Name
Wake Forest University Health Sciences
Department
Biochemistry
Type
Schools of Medicine
DUNS #
937727907
City
Winston-Salem
State
NC
Country
United States
Zip Code
27157
Gao, Chuan; Langefeld, Carl D; Ziegler, Julie T et al. (2018) Genome-Wide Study of Subcutaneous and Visceral Adipose Tissue Reveals Novel Sex-Specific Adiposity Loci in Mexican Americans. Obesity (Silver Spring) 26:202-212
Gao, Chuan; Tabb, Keri L; Dimitrov, Latchezar M et al. (2018) Exome Sequencing Identifies Genetic Variants Associated with Circulating Lipid Levels in Mexican Americans: The Insulin Resistance Atherosclerosis Family Study (IRASFS). Sci Rep 8:5603
Liu, Ching-Ti; Raghavan, Sridharan; Maruthur, Nisa et al. (2016) Trans-ethnic Meta-analysis and Functional Annotation Illuminates theĀ Genetic Architecture of Fasting Glucose and Insulin. Am J Hum Genet 99:56-75
Palmer, Nicholette D; Ng, Maggie C Y; Langefeld, Carl D et al. (2015) Lack of Association of the APOL1 G3 Haplotype in African Americans with ESRD. J Am Soc Nephrol 26:1021-5
Gao, Chuan; Wang, Nan; Guo, Xiuqing et al. (2015) A Comprehensive Analysis of Common and Rare Variants to Identify Adiposity Loci in Hispanic Americans: The IRAS Family Study (IRASFS). PLoS One 10:e0134649
Wessel, Jennifer; Chu, Audrey Y; Willems, Sara M et al. (2015) Low-frequency and rare exome chip variants associate with fasting glucose and type 2 diabetes susceptibility. Nat Commun 6:5897
Palmer, Nicholette D; Musani, Solomon K; Yerges-Armstrong, Laura M et al. (2013) Characterization of European ancestry nonalcoholic fatty liver disease-associated variants in individuals of African and Hispanic descent. Hepatology 58:966-75
Bailey, Jessica N Cooke; Lu, Lingyi; Chou, Jeff W et al. (2013) The Role of Copy Number Variation in African Americans with Type 2 Diabetes-Associated End Stage Renal Disease. J Mol Genet Med 7:61
Cooke, Jessica N; Ng, Maggie C Y; Palmer, Nicholette D et al. (2012) Genetic risk assessment of type 2 diabetes-associated polymorphisms in African Americans. Diabetes Care 35:287-92
Palmer, Nicholette D (see original citation for additional authors) (2012) A genome-wide association search for type 2 diabetes genes in African Americans. PLoS One 7:e29202

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