Research Article

Serum Concentrations of Betatrophin and Its Association with Indirect Indices of Insulin Resistance and Beta Cell Function in Women with Polycystic Ovary Syndrome

Table 1

Clinical and biochemical characteristics of the studied groups.

Control group ()PCOS ()

Age (years)24.3 ± 4.125.3 ± 4.5
BMI (kg/m2)22.8 ± 3.024.5 ± 3.1
Waist circumference (cm)80.3 ± 7.985.2 ± 10.7
Hip circumference (cm)99.7 ± 7.3101.6 ± 8.4
FFM (kg)45.5 ± 5.146.7 ± 6.0
FM (kg)18.6 ± 6.622.6 ± 7.2
LDL cholesterol (mg/dl)86.9 ± 20.4100.5 ± 40.9
TG (mg/dl)70.4 ± 17.178.7 ± 39.7
Glucose 0′ OGTT (mg/dl)89 ± 6.888.2 ± 6.6
Glucose 30′ OGTT (mg/dl)128.5 ± 24.6145 ± 28.5
Glucose 60′ OGTT (mg/dl)97 ± 22.7123.5 ± 35.8
Glucose 120′ OGTT (mg/dl)92 ± 15.695.7 ± 21.6
Insulin 0′ OGTT (μIU/ml)11.9 ± 5.511.5 ± 4.7
Insulin 30′ OGTT (μIU/ml)63.7 ± 28.589.3 ± 56.7
Insulin 60′ OGTT (μIU/ml)58.6 ± 49.284.4 ± 51.5
Insulin 120′ OGTT (μIU/ml)35.8 ± 16.956.4 ± 49.6
HOMA-IR2.6 ± 1.22.5 ± 1.0
HOMA-B175.1 ± 80.7193 ± 186.3
Matsuda index5.37 ± 1.74.8 ± 2.1
Follicle-stimulating hormone (IU/l)5.8 ± 2.84.5 ± 1.4
Luteinizing hormone (IU/l)3.7 ± 1.36.3 ± 3.9
Total testosterone (ng/ml)0.5 ± 0.20.8 ± 0.4
SHBG (nmol/l)48.0 ± 19.145.4 ± 22.6
FAI4.3 ± 2.28.4 ± 5.9
Prolactin (ng/ml)14.4 ± 6.815.2 ± 9.0
Betatrophin 0′ (ng/ml)0.92 ± 0.350.85 ± 0.33
Betatrophin 120′ (ng/ml)1.15 ± 0.42#0.88 ± 0.32

Data are presented as mean ± SD. Differences between the groups are derived from nonparametric Mann–Whitney U test. BMI: body mass index; TG: triglycerides; FM: fat mass; FFM: fat-free mass; OGTT: oral glucose tolerance test; HOMA-IR: homeostasis model assessment insulin resistance; HOMA-B: homeostasis model assessment β cell function; FAI: free-androgen index; SHBG: sex hormone-binding globulin; in PCOS women versus control group; # versus the baseline state.