title: Relationship Between Parathormone and Obesity-Linked Disorders.
abstract: BACKGROUND
  In this study, we aimed to investigate whether high parathormone (PTH) levels in obese patients contribute to the metabolic complications of obesity.
  
  
  METHODS
  A total of 400 obese subjects aged 18-65 years were included. Anthropometric bioelectrical bioimpedance measures, blood tests, and 75 gram oral glucose tolerance test results were evaluated.
  
  
  RESULTS
  Of the 400 obese subjects, 335 were female. The mean age was 39 ± 10 years. The median body mass index was 36 (interquartile range 34-41). Subjects were divided into quartiles according to blood PTH levels. Groups included quartile 1 [n = 100, median PTH; 42 (range 36-45)], quartile 2 [n = 100, median PTH; 55 (51-59)], quartile 3 [n = 100, median PTH; 73 (68-78)], and quartile 4 [n = 100, median PTH; 99 (89-125)]. Quartiles were evaluated with a generalized linear model adjusted for age, sex, and season of recruitment. Systolic and diastolic blood pressure, fasting glucose, homeostatic model assessment-estimated insulin resistance, insulin sensitivity index, triglyceride level, and high-density lipoprotein cholesterol (HDL-C) were not different among quartiles. PTH and 25 hydroxyvitamin D (25(OH)D) were not associated with higher odds of prevalent metabolic syndrome in obese subjects (odds ratio, OR, 0.99 [95% confidence interval, CI, 0.981.00], P = 0.38 and 0.99 95% CI 0.96-1.01], P = 0.46, respectively). Decreased 25(OH)D levels were significantly correlated with higher odds of low HDL-C (OR 0.96 [95% CI 0.93-0.99], P = 0.04).
  
  
  CONCLUSIONS
  PTH does not contribute to the occurrence of metabolic components of obesity, but there is a positive correlation between 25(OH)D and HDL-C.
authors.affiliation: 1 Department of Endocrinology and Metabolic Diseases, Kartal Dr. Lutfi Kirdar Training and Research Hospital , Istanbul, Turkey .
authors.forename: Sule
authors.initials: S
authors.lastname: Temizkan
authors.affiliation: 2 Department of Family Medicine, Kartal Dr. Lutfi Kirdar Training and Research Hospital , Istanbul, Turkey .
authors.forename: Sevin
authors.initials: S
authors.lastname: Demir
authors.affiliation: 1 Department of Endocrinology and Metabolic Diseases, Kartal Dr. Lutfi Kirdar Training and Research Hospital , Istanbul, Turkey .
authors.forename: Kadriye
authors.initials: K
authors.lastname: Aydin
authors.affiliation: 1 Department of Endocrinology and Metabolic Diseases, Kartal Dr. Lutfi Kirdar Training and Research Hospital , Istanbul, Turkey .
authors.forename: Aysenur
authors.initials: A
authors.lastname: Ozderya
authors.affiliation: 2 Department of Family Medicine, Kartal Dr. Lutfi Kirdar Training and Research Hospital , Istanbul, Turkey .
authors.forename: Hilal Toplu
authors.initials: HT
authors.lastname: Ozturk
authors.affiliation: 2 Department of Family Medicine, Kartal Dr. Lutfi Kirdar Training and Research Hospital , Istanbul, Turkey .
authors.forename: Mehmet
authors.initials: M
authors.lastname: Sargin
mesh_terms: D050154:Adiposity; D000293:Adolescent; D000328:Adult; D000368:Aged; D015415:Biomarkers / Q000097:blood; D001786:Blood Glucose / Q000032:analysis; D015992:Body Mass Index; D016009:Chi-Square Distribution; D008076:Cholesterol, HDL / Q000097:blood; D016208:Databases, Factual; D017097:Electric Impedance; D005260:Female; D005951:Glucose Tolerance Test; D006801:Humans; D007118:Immunoassay; D007328:Insulin / Q000097:blood; D016014:Linear Models; D008297:Male; D024821:Metabolic Syndrome / Q000097:blood* / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology; D008875:Middle Aged; D015999:Multivariate Analysis; D009765:Obesity / Q000097:blood* / Q000175:diagnosis / Q000453:epidemiology / Q000503:physiopathology; D016017:Odds Ratio; D010281:Parathyroid Hormone / Q000097:blood*; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors; D014421:Turkey / Q000453:epidemiology; D014807:Vitamin D / Q000031:analogs & derivatives / Q000097:blood; D055815:Young Adult
chemical_list: D015415:Biomarkers; D001786:Blood Glucose; D008076:Cholesterol, HDL; D007328:Insulin; C470125:PTH protein, human; D010281:Parathyroid Hormone; D014807:Vitamin D; C104450:25-hydroxyvitamin D