title: Association of peroxisome proliferator activated receptor-γ gene with non-alcoholic fatty liver disease in Asian Indians residing in north India.
abstract: BACKGROUND
  Genetics of non-alcoholic fatty liver (NAFLD) in Asian Indians has been inadequately studied. We investigated the association of polymorphisms C161T and Pro12Ala of peroxisome proliferator-activated receptor gamma (PPARγ) with clinical and biochemical parameters in Asian Indians with NAFLD.
  
  
  METHODS
  In this case-control study, 162 NAFLD cases and 173 controls were recruited. Abdominal ultrasound, clinical and biochemical profiles, fasting insulin levels and value of homeostasis model assessment of insulin resistance were determined. Polymerase chain reaction-restriction fragment length polymorphisms of two polymorphisms were performed. The association of these polymorphisms with clinical and biochemical parameters was analysed.
  
  
  RESULTS
  Higher frequency of Ala and T alleles of PPARγ was obtained in cases. Ala/Ala genotype of PPARγ (Pro12Ala) was associated with significantly higher serum triglycerides (TG), alkaline phosphatase (ALK) and waist-hip ratio in cases as compared to controls. In C161T polymorphism, TT genotype was significantly increased TG (p=0.04), total cholesterol (p=0.01), ALK (p=0.04) and gamma-glutamyl transpeptidase (p=0.007) in cases. The linkage disequilibrium for these two single-nucleotide polymorphisms of PPARγ was differed in cases (D1=0.1; p=0.006) and controls (D1=0.07; p=0.1). Using a multivariate analysis after adjusting for age, sex and body mass index, the presence of NAFLD was linked to these two polymorphisms (odds ratio 1.64 (95% CI: 1.09-2.45, p=0.05)].
  
  
  CONCLUSIONS
  Asian Indians in north India carrying the alleles Ala and T of PPARγ (Pro12Ala and C161T) polymorphisms are predisposed to develop NAFLD.
authors.affiliation: Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India.
authors.forename: Surya Prakash
authors.initials: SP
authors.lastname: Bhatt
authors.forename: Priyanka
authors.initials: P
authors.lastname: Nigam
authors.forename: Anoop
authors.initials: A
authors.lastname: Misra
authors.forename: Randeep
authors.initials: R
authors.lastname: Guleria
authors.forename: Kalpana
authors.initials: K
authors.lastname: Luthra
authors.forename: Ravindra Mohan
authors.initials: RM
authors.lastname: Pandey
authors.forename: M A Qadar
authors.initials: MA
authors.lastname: Pasha
mesh_terms: D000328:Adult; D000483:Alleles; D044466:Asian People / Q000235:genetics*; D016022:Case-Control Studies; D005234:Fatty Liver / Q000175:diagnosis / Q000235:genetics*; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D007194:India; D008875:Middle Aged; D065626:Non-alcoholic Fatty Liver Disease; D047495:PPAR gamma / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide; D012307:Risk Factors
chemical_list: D047495:PPAR gamma