title: Is vaspin related to cardio-metabolic status and autonomic function in early stages of glucose intolerance and in metabolic syndrome?
abstract: BACKGROUND
  This study aims to assess serum vaspin in early stages of glucose intolerance and in the presence of metabolic syndrome (MetS); and to evaluate vaspin correlation to different cardio-metabolic parameters and autonomic tone in these subjects.
  
  
  METHODS
  185 subjects (80 males and 105 females) of mean age 45.8 ± 11.6 years and mean BMI 31.2 ± 6.3 kg/m(2), divided into groups according to: glucose tolerance, presence of MetS and cardio-vascular autonomic dysfunction (CAD), were enrolled. Glucose tolerance was studied during OGTT. Anthropometric indices, blood pressure, HbA1c, serum lipids, hsCRP, fasting immunoreactive insulin and serum vaspin were measured. Body composition was estimated by impedance analysis. AGEs were assessed by skin fluorescence. CAD was assessed by ANX-3.0.
  
  
  RESULTS
  There was no difference in vaspin levels between the groups according to glucose tolerance, presence of MetS, and CAD. Regression analysis revealed independent association between serum vaspin and total body fat in newly diagnosed type 2 diabetes (NDT2D) group, and between serum vaspin and age and total body fat in MetS group. Vaspin negatively correlated with both sympathetic and parasympathetic activity in normal glucose tolerance (NGT) and just with parasympathetic tone in NGT without MetS.
  
  
  CONCLUSIONS
  Our results demonstrate no overt fluctuations in vaspin levels in the early stages of glucose intolerance and in MetS. Total body fat seems to be related to vaspin levels in MetS and NDT2D. Our data show negative correlation between vaspin and autonomic function in NGT, as vaspin is associated with parasympathetic activity even in the absence of MetS.
authors.affiliation: Department of Diabetology, Clinical Center of Endocrinology, Medical University Sofia, 2, Zdrave Str., Sofia, 1431 Bulgaria.
authors.forename: Rumyana
authors.initials: R
authors.lastname: Dimova
authors.affiliation: Department of Diabetology, Clinical Center of Endocrinology, Medical University Sofia, 2, Zdrave Str., Sofia, 1431 Bulgaria.
authors.forename: Tsvetalina
authors.initials: T
authors.lastname: Tankova
authors.affiliation: Department of Radioimmunology Laboratory, Clinical Center of Endocrinology, Medical University Sofia, Sofia, Bulgaria.
authors.forename: Georgi
authors.initials: G
authors.lastname: Kirilov
authors.affiliation: Department of Diabetology, Clinical Center of Endocrinology, Medical University Sofia, 2, Zdrave Str., Sofia, 1431 Bulgaria.
authors.forename: Nevena
authors.initials: N
authors.lastname: Chakarova
authors.affiliation: Department of Diabetology, Clinical Center of Endocrinology, Medical University Sofia, 2, Zdrave Str., Sofia, 1431 Bulgaria.
authors.forename: Lilia
authors.initials: L
authors.lastname: Dakovska
authors.affiliation: Department of Diabetology, Clinical Center of Endocrinology, Medical University Sofia, 2, Zdrave Str., Sofia, 1431 Bulgaria.
authors.forename: Greta
authors.initials: G
authors.lastname: Grozeva
keywords: Cardio-vascular autonomic function; Glucose tolerance; Metabolic syndrome; Vaspin