Table 2 Effects of maca root extract, Chinese chive extract and combined extracts on testosterone, NO and cGMP levels (mean ± SD)
From: Effects of combined extracts of Lepidium meyenii and Allium tuberosum Rottl. on erectile dysfunction
Groups | Serum | Penis | |||
|---|---|---|---|---|---|
Testosterone (nmol/L) | NO (μmol/L) | cGMP (μmol/L) | NO (μmol/L) | cGMP (μmol/L) | |
Group 1 (control) | 15.93 ± 2.11 | 82.26 ± 12.19 | 6.17 ± 1.09 | 116.20 ± 0.014 | 12.14 ± 1.97 |
Group 2 (maca root extract, 200 mg/kg/d, b.w) | 15.86 ± 2.06 | 94.25 ± 8.92 | 6.81 ± 1.77 | 118.05 ± 0.026 | 12.86 ± 1.04 |
Group 3 (Chinese chive extract, 200 mg/kg/d, b.w) | 15.72 ± 4.56 | 98.94 ± 14.48* | 7.03 ± 1.58 | 136.90 ± 1.81 | 13.21 ± 1.81 |
Group 4 (combined extracts, 200 mg/kg/d, b.w) | 15.83 ± 2.20 | 104.69 ± 8.83** | 7.23 ± 1.44 | 143.18 ± 0.023* | 15.01 ± 1.89* |
Group 5 (Viagra, 14 mg/kg once before mating experiment) | 15.57 ± 3.30 | 116.62 ± 15.19* | 8.26 ± 1.69* | 149.73 ± 0.022* | 15.39 ± 2.19* |