Table 3.
Effects of metformin and/or glyburide on prolactin serum level and other metabolic profile in patients with type 2 diabetes mellitus
| Variables | Metformin | Glyburide | Combination | A | B | C | ANOVA |
|---|---|---|---|---|---|---|---|
| n | 29 | 30 | 21 | ||||
| BMI (kg/m2) | 30.10±3.81 | 31.45±3.66 | 30.40±2.98 | NS | NS | NS | 0.32 |
| SBP (mmHg) | 145.79±4.64 | 150.75±5.90 | 146.79±4.48 | 0.001* | NS | 0.02× | 0.001 |
| DBP (mmHg) | 88.95±7.67 | 95.11±5.22 | 90.39±5.29 | 0.0009* | NS | 0.02× | 0.0009 |
| MAP (mmHg) | 107.89±6.68 | 113.65±5.83 | 109.19±4.81 | 0.001* | NS | 0.02× | 0.001 |
| FBG (mg/dl) | 144.52±7.65 | 141.22±6.11 | 133.11±5.22 | NS | 0.0001* | 0.0001* | 0.0001 |
| HbA1c | 8.6±2.32 | 9.99±2.56 | 7.11±2.12 | NS | NS | 0.0002* | 0.0003 |
| FSI (mIU/l) | 16.81±3.22 | 19.33±3.66 | 17.84±3.11 | 0.01× | NS | NS | 0.01 |
| HOMA-IR | 2.39±1.01 | 2.72±1.05 | 2.49±1.01 | NS | NS | NS | NS |
| HOMA-β% | 66.4±4.95 | 76.4±7.95 | 80.3±5.29 | 0.0001* | 0.0001* | NS | 0.0001 |
| TG (mg/dL) | 188.24±12.5 | 201.63±13.85 | 182.71±12.63 | 0.0005* | NS | 0.0001* | 0.00001 |
| TC (mg/dL) | 191.61±11.8 | 207.12±13.92 | 199.73±13.43 | 0.0001* | NS | NS | 0.0001 |
| LDL (mg/dL) | 110.14±9.71 | 126.83±10.49 | 114.44±9.47 | 0.0001* | NS | 0.0001* | 0.0001 |
| HDL (mg/dL) | 43.82±7.83 | 39.96±5.53 | 48.74±4.12 | 0.04× | 0.01× | 0.0001* | 0.00001 |
| VLDL (mg/dL) | 37.64±5.56 | 40.32±6.39 | 36.54±3.47 | NS | NS | 0.04× | 0.03 |
| AI | 0.27±0.01 | 0.34±0.02 | 0.21±0.01 | 0.0001* | 0.0001* | NS | 0.0001 |
| CRP (mg/L) | 2.61±1.82 | 3.96±1.94 | 2.33±0.41 | 0.006* | NS | 0.002* | 0.0009 |
| Prolactin (ng/ml) | 32.88±5.85 | 38.71±6.79 | 35.89±6.51 | 0.002* | NS | NS | 0.003 |
*P<0.01, ×P<0.05. BMI: Body mass index, SBP: Systolic blood pressure, DBP: Diastolic blood pressure, MAP: Mean arterial pressure, FSI: Fasting serum insulin, FBG: Fasting blood glucose, HbA1c: Glycated hemoglobin, HOMA-IR: Homeostatic model assessment-insulin resistance, β%: β-cell function, S%: Insulin sensitivity, TG: Triglyceride, TC: Total cholesterol, LDL: Low-density lipoprotein, HDL: High-density lipoprotein, VLDL: Very low-density lipoprotein, AI: Atherogenic index, CRP: C-reactive protein, NS: Not significant, A: Metformin versus glyburide, B: Metformin versus combination, C: Glyburide versus combination, ANOVA: Analysis of variance