title: Genetic Associations of PPARGC1A with Type 2 Diabetes: Differences among Populations with African Origins.
abstract: The aim of this study was to assess the differences in correlation of PPARGC1A polymorphisms with type 2 diabetes (T2D) risk in adults of African origins: African Americans and Haitian Americans. The case-control study consisted of >30 years old, self-identified Haitian Americans (n = 110 cases and n = 116 controls) and African Americans (n = 124 cases and n = 122 controls) living in South Florida with and without T2D. Adjusted logistic regression indicated that both SNP rs7656250 (OR = 0.22, P = 0.005) and rs4235308 (OR = 0.42, P = 0.026) showed protective association with T2D in Haitian Americans. In African Americans, however, rs4235308 showed significant risk association with T2D (OR = 2.53, P = 0.028). After stratification with sex, in Haitian Americans, both rs4235308 (OR = 0.38, P = 0.026) and rs7656250 (OR = 0.23, P = 0.006) showed protective association with T2D in females whereas in African American males rs7656250 had statistically significant protective effect on T2D (OR = 0.37, P = 0.043). The trends observed for genetic association of PPARGC1A SNPs, rs4235308, and rs7656250 for T2D between Haitian Americans and African Americans point out differences in Black race and warrant replicative study with larger sample size.
authors.affiliation: Department of Dietetics and Nutrition, Robert Stempel College of Public Health, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA.
authors.forename: Amanpreet K
authors.initials: AK
authors.lastname: Cheema
authors.affiliation: Department of Biostatistics, Robert Stempel College of Public Health, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA.
authors.forename: Tan
authors.initials: T
authors.lastname: Li
authors.affiliation: Department of Dietetics and Nutrition, Robert Stempel College of Public Health, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA.
authors.forename: Juan P
authors.initials: JP
authors.lastname: Liuzzi
authors.affiliation: Department of Dietetics and Nutrition, Robert Stempel College of Public Health, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA.
authors.forename: Gustavo G
authors.initials: GG
authors.lastname: Zarini
authors.affiliation: School of Health Sciences, Liverpool Hope University, Hope Park, Liverpool L16 9JD, UK.
authors.forename: Mehmet T
authors.initials: MT
authors.lastname: Dorak
authors.affiliation: Department of Dietetics and Nutrition, Robert Stempel College of Public Health, Florida International University, 11200 SW 8th Street, Miami, FL 33199, USA.
authors.forename: Fatma G
authors.initials: FG
authors.lastname: Huffman
mesh_terms: D000328:Adult; D000368:Aged; D044383:Black People / Q000208:ethnology / Q000235:genetics*; D015992:Body Mass Index; D016022:Case-Control Studies; D003924:Diabetes Mellitus, Type 2 / Q000208:ethnology / Q000235:genetics*; D005260:Female; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D008297:Male; D008875:Middle Aged; D000071248:Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha; D020641:Polymorphism, Single Nucleotide; D012737:Sex Factors; D014157:Transcription Factors / Q000235:genetics*; D001741:Black or African American
chemical_list: C486497:PPARGC1A protein, human; D000071248:Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha; D014157:Transcription Factors