| Studied parameter | 
        Normal weight healthy subjects    (n=41) | 
        Overweight healthy subjects (n=27) | 
        Obese healthy subjects(n=40) | 
       
      
        | Fasting serum NS    glucose  (mg/dl) | 
        89.45 ± 17.04 | 
        87.81 ± 9.82 | 
        89.95 ± 13.55 | 
       
      
        | Serum irisin (ng/ml) | 
        42.76 ± 14.28 | 
        45.97 ± 6.03▲▲ | 
        49.58 ± 7.55▲ | 
       
      
        | Insulin (µIU/ml) NS | 
        20.9 ± 8.1 
          (n=23) | 
          | 
        22.45 ± 7.1 
          (n=30) | 
       
      
        | Leptin (ng/ml) | 
        23.3 ± 15.1 
          (n=23) | 
          | 
        28.9 ± 20.9● 
          (n=30) | 
       
     
    ANOVA and t-test revealed, NS no significant differences in fasting glucose and insulin among the groups, ▲; t-test showed significant difference between the obese and normal weight groups (P=0.001), ▲▲; t-test revealed significant difference between overweight and normal weight groups (P=0.009), ●; t-test showed significant difference between obese and normal weight groups (P=0.001). |