The pharmacokinetic parameters of thirteen compounds in rat plasma after intravenous administration of EBI with high and low dosages (mean ± SD, n = 6).
Analyte | Group | t 1/2 (h) | AUC0–t (h ng mL−1) | Vd (L) | Cl (L h−1) | MRT0–t (h) |
---|---|---|---|---|---|---|
5-CQA | Low | 0.32 ± 0.08 | 172.34 ± 77.29 | 0.16 ± 0.05 | 0.35 ± 0.14 | 0.26 ± 0.08 |
High | 0.75 ± 0.32 | 943.72 ± 201.44 | 0.29 ± 0.13 | 0.27 ± 0.05 | 0.37 ± 0.04 | |
3-CQA | Low | 0.33 ± 0.08 | 166.55 ± 72.23 | 0.15 ± 0.06 | 0.32 ± 0.13 | 0.3 ± 0.08 |
High | 0.48 ± 0.29 | 846.20 ± 156.52 | 0.17 ± 0.09 | 0.26 ± 0.04 | 0.41 ± 0.04 | |
4-CQA | Low | 0.65 ± 0.29 | 202.53 ± 83.05 | 0.26 ± 0.16 | 0.26 ± 0.09 | 0.41 ± 0.14 |
High | 0.66 ± 0.34 | 873.70 ± 163.41 | 0.24 ± 0.14 | 0.26 ± 0.04 | 0.42 ± 0.05 | |
4-CDOA | Low | 0.44 ± 0.09 | 459.32 ± 163.96 | 0.19 ± 0.05 | 0.30 ± 0.12 | 0.42 ± 0.08 |
High | 0.41 ± 0.12 | 2187.22 ± 293.22 | 0.16 ± 0.06 | 0.26 ± 0.03 | 0.47 ± 0.04 | |
Caffeic acid | Low | 0.23 ± 0.03 | 75.22 ± 43.75 | 0.16 ± 0.07 | 0.48 ± 0.21 | 0.14 ± 0.04 |
High | 0.22 ± 0.07 | 392.91 ± 144.63 | 0.13 ± 0.06 | 0.41 ± 0.13 | 0.20 ± 0.07 | |
1,3-diCQA | Low | 0.67 ± 0.20 | 55.08 ± 36.85 | 0.23 ± 0.09 | 0.26 ± 0.14 | 0.34 ± 0.17 |
High | 0.56 ± 0.30 | 232.15 ± 19.59 | 0.21 ± 0.10 | 0.27 ± 0.02 | 0.45 ± 0.12 | |
Scutellarin | Low | 1.24 ± 0.64 | 1514.18 ± 574.10 | 0.90 ± 0.54 | 0.51 ± 0.20 | 0.39 ± 0.09 |
High | 2.51 ± 0.95 | 6862.12 ± 989.25 | 1.63 ± 0.65 | 0.45 ± 0.06 | 0.45 ± 0.10 | |
3,4-diCQA | Low | 0.53 ± 0.20 | 650.03 ± 236.17 | 0.25 ± 0.11 | 0.34 ± 0.12 | 0.37 ± 0.13 |
High | 0.46 ± 0.13 | 3259.07 ± 444.77 | 0.18 ± 0.06 | 0.28 ± 0.03 | 0.36 ± 0.02 | |
3,5-diCQA | Low | 0.60 ± 0.24 | 482.00 ± 164.95 | 0.14 ± 0.04 | 0.17 ± 0.06 | 0.42 ± 0.16 |
High | 0.80 ± 0.38 | 1871.50 ± 228.63 | 0.22 ± 0.10 | 0.19 ± 0.02 | 0.48 ± 0.07 | |
Erigoster B | Low | 4.21 ± 1.50 | 2275.72 ± 597.88 | 1.16 ± 0.72 | 0.18 ± 0.063 | 0.68 ± 0.32 |
High | 4.16 ± 1.28 | 7484.27 ± 953.92 | 1.37 ± 0.28 | 0.24 ± 0.03 | 0.72 ± 0.17 | |
3,4-diCDOA (or 4,9-diCDOA) | Low | 2.50 ± 0.43 | 1570.16 ± 465.15 | 0.93 ± 0.43 | 0.25 ± 0.07 | 0.64 ± 0.18 |
High | 3.23 ± 1.04 | 4847.40 ± 642.09 | 1.53 ± 0.38 | 0.34 ± 0.04 | 0.44 ± 0.14 | |
A-7-O-G | Low | 0.26 ± 0.10 | 215.61 ± 119.28 | 0.24 ± 0.08 | 0.70 ± 0.29 | 0.19 ± 0.09 |
High | 0.66 ± 0.44 | 1422.05 ± 324.88 | 0.35 ± 0.19 | 0.41 ± 0.09 | 0.25 ± 0.07 | |
4,5-diCQA | Low | 0.34 ± 0.13 | 582.02 ± 279.04 | 0.26 ± 0.08 | 0.58 ± 0.23 | 0.26 ± 0.12 |
High | 0.46 ± 0.22 | 2331.32 ± 479.31 | 0.42 ± 0.24 | 0.61 ± 0.11 | 0.40 ± 0.07 | |
Concentration sum method | Low | 5.86 ± 2.36 | 6524.01 ± 1891.26 | 2.57 ± 1.40 | 0.30 ± 0.08 | 1.20 ± 1.36 |
High | 6.24 ± 1.32 | 23 900.04 ± 3290.67 | 3.25 ± 0.70 | 0.36 ± 0.05 | 0.59 ± 0.04 | |
AUC integrated method | Low | 6.63 ± 2.36 | 1716.01 ± 406.14 | 2.16 ± 1.05 | 0.22 ± 0.04 | 1.43 ± 1.72 |
High | 8.02 ± 2.21 | 5478.38 ± 714.25 | 3.65 ± 0.97 | 0.32 ± 0.04 | 0.66 ± 0.06 |