title: Adiponectin gene variants and abdominal obesity in an Iranian population.
abstract: BACKGROUND
  Waist-to-height ratio (WHtR) can be effective for the diagnosis of abdominal obesity and the risk of type 2 diabetes. The role of genetic factors in the development of obesity has been broadly recognized. Adiponectin's level is inversely correlated with body fat percentage and is reduced in obesity and type 2 diabetes. The aim of this study is to investigate the association between WHtR and adiponectin gene polymorphisms in Iranian population.
  
  
  METHODS
  This study was conducted on 610 subjects from two Iranian populations. Anthropometric characteristics were measured by routine methods. Blood samples were collected in tubes (3-5 mL) containing EDTA and were stored at 20 °C. After DNA extraction, genotyping was performed using PCR-RFLP technique.
  
  
  RESULTS
  There were statistically significant differences in genotype frequencies of -11391 G/A in centrally obese (WHtR >0.5) and noncentrally obese (WHtR ≤0.5) subjects (P value <0.044). In the former, the frequencies of GG and GA + AA genotypes were 89.4 and 10.6 %, respectively, while the frequencies of GG and GA + AA genotypes were 95.9 and 4.1 %, respectively, in noncentrally obese subjects.
  
  
  CONCLUSIONS
  The frequency of GG genotype was significantly increased in subjects with WHtR >0.5 compared to the other group. After adjustment for diabetes, abdominal obesity was significantly associated with the -11391 G/A polymorphism.
authors.affiliation: Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Shariati Hospital, 5th Floor, North Kargar Ave, 1411413137, Tehran, Iran.
authors.forename: Moloud
authors.initials: M
authors.lastname: Payab
authors.affiliation: Metabolic Disorders Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran. amolimm@sina.tums.ac.ir.
authors.forename: Mahsa M
authors.initials: MM
authors.lastname: Amoli
authors.affiliation: Department of Community Medicine, Alborz University of Medical Sciences, Karaj, Iran.|Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Mostafa
authors.initials: M
authors.lastname: Qorbani
authors.affiliation: Obesity and Eating Habits Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Shariati Hospital, 5th Floor, North Kargar Ave, 1411413137, Tehran, Iran. Sh_ha-sani@sina.tums.ac.ir.|Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran. Sh_ha-sani@sina.tums.ac.ir.
authors.forename: Shirin
authors.initials: S
authors.lastname: Hasani-Ranjbar
mesh_terms: D052242:Adiponectin / Q000235:genetics*; D003430:Cross-Sectional Studies; D005260:Female; D005787:Gene Frequency; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D007492:Iran; D008297:Male; D008875:Middle Aged; D056128:Obesity, Abdominal / Q000235:genetics*; D020641:Polymorphism, Single Nucleotide
chemical_list: D052242:Adiponectin
keywords: Abdominal obesity; Adiponectin; Diabetes; Metabolic syndrome; Obesity; Polymorphism; Waist-to-height ratio