Brief Article
Copyright ©2009 The WJG Press and Baishideng.
World J Gastroenterol. Dec 21, 2009; 15(47): 5992-5999
Published online Dec 21, 2009. doi: 10.3748/wjg.15.5992
Table 1 Parameters of the 6 major DCQD components in rat plasma QC samples (%, n = 6)
Spiked amount (ng/mL)Intra-day
Inter-day
Extract
RSDAcRSDAcRecoveryRSD
Rhein39.13.76104.603.53107.94104.603.76
1565.55100.325.52106.87100.325.55
6255.31101.075.56105.36101.075.31
37504.24101.246.2398.37101.244.24
Chrysophanol6.12.3799.44.4698.6799.392.36
24.44.38104.174.88101.14104.174.37
97.71.6496.663.3398.0996.661.64
5863.78103.984.44101.13103.983.78
Rheochrysidin39.15.6997.705.72100.7897.695.68
1563.3399.894.13101.1499.893.33
6253.22105.923.73104.37105.923.22
37504.75103.074.84103.49103.074.75
Magnolol6.15.51102.135.07106.33102.135.51
24.42.39104.785.7999.86104.782.39
97.75.51107.814.92106.23102.475.51
5863.77105.975.33105.29105.973.77
Hesperidin6.14.1295.964.8298.4995.964.12
24.45.8399.525.10100.2999.525.83
97.74.21100.143.9599.72100.164.21
5862.7797.134.9198.5297.132.76
Naringin6.12.6695.664.2699.2995.672.657
24.42.82102.463.95103.37102.452.82
97.73.81100.783.96100.66100.783.81
5865.2498.275.5999.3298.275.24
Table 2 Stability of the 6 major DCQD compositions in rat plasma QC samples (%, n = 3)
Spiked amount(ng/mL)Bench-top bias
Long-term bias
Freeze-thaw bias
Extract bias
Autosampler bias
2 h4 h7 d14 d128 h24 h6 h12 h
Rhein39.1-1.32-4.57-1.15-4.27-1.15-2.546.06-4.54-5.25-5.33
156-2.50-5.39-2.36-0.43-2.360.432.282.48-1.29-1.07
6255.28-1.211.60-2.821.60-2.93-0.903.40-0.48-0.27
37502.065.52-4.460.09-4.46-0.171.501.32-1.54-3.60
Chrysophanol6.1-0.671.002.423.542.420.904.733.190.732.36
24.45.044.62-2.74-2.61-2.74-6.40-2.82-4.42-3.39-3.52
97.7-0.325.80-5.390.27-5.39-1.52-2.340.00-3.410.00
568.0-0.72-2.002.01-2.132.01-2.47-2.92-0.970.632.42
Rheochrysidin6.11.59-2.59-4.11-3.78-4.11-5.18-3.93-6.27-6.33-5.10
24.44.09-0.650.00-4.030.00-1.27-0.433.24-0.42-3.18
97.7-0.86-4.45-0.380.59-0.38-2.43-0.58-0.320.38-2.49
568.02.80-5.52-3.40-2.09-3.40-2.182.041.16-1.66-3.66
Magnolol6.1-1.581.33-5.23-4.34-5.23-3.09-2.72-2.14-5.18-4.60
24.45.760.840.42-2.490.420.28-1.951.531.25-0.83
97.71.821.171.48-1.101.480.904.231.47-3.211.35
568.0-2.02-3.03-1.60-4.43-1.60-2.210.23-5.01-3.82-6.14
Hesperidin6.1-4.294.85-0.48-1.27-0.48-3.081.012.34-3.98-1.54
24.4-2.03-3.110.410.000.41-1.361.461.46-4.214.76
97.73.42-1.690.110.390.111.372.672.332.705.12
568.0-3.00-0.81-4.73-2.25-4.73-3.553.750.62-2.760.23
Naringin6.1-1.652.70-1.961.63-1.96-4.90-1.73-0.492.61-2.83
24.43.954.90-4.56-2.73-4.56-2.731.042.86-4.69-6.12
97.70.072.03-5.11-0.96-5.111.58-4.46-2.31-0.450.93
568.0-4.101.68-4.52-1.45-4.52-4.811.20-3.06-2.08-1.56
Table 3 Twelve-hour pharmacokinetic parameters of DCQD components in rats of the two groups (n = 6)
T1/2α (h)CL/F (L∙h per kg)AUC(0-∞) (μg/L per hour)MRT(0-t) (h)Tmax (h)Cmax (μg/L)
Rhein
Sham0.33 ± 0.134.03 ± 1.384720 ± 15148.86 ± 0.620.36 ± 0.11510 ± 283
AP4.367 ± 2.330.133 ± 0.062870 ± 5637.82 ± 3.371.75 ± 1.25479 ± 126
t4.27216.91062.80540.75132.72420.2448
P0.001600.01860.46980.02140.8116
Rheochrysidin
Sham0.354 ± 0.3020.356 ± 0.1416.047 ± 6.084.189 ± 0.4630.569 ± 0.263.86 ± 1.09
AP1.464 ± 0.4490.328 ± 0.10916.63 ± 5.064.34 ± 0.291.5 ± 0.552.58 ± 0.58
t5.02470.38660.1790.69293.75972.5511
P0.00050.70720.86150.50410.00370.0288
Chrysophanol
Sham0.38 ± 0.2724.32 ± 9.65461.3 ± 188.78.49 ± 0.930.59 ± 0.2453.02 ± 21.9
AP0.89 ± 0.480.095 ± 0.035115.8 ± 34.8910 ± 5.11.33 ± 0.5217.59 ± 10.5
t2.26836.09944.39650.70883.1653.4855
P0.04670.00010.00130.49470.01010.0059
Table 4 Twelve-hour pharmacokinetic parameters of DCQD components in rats of the two groups (n = 6)
T1/2α (h)AUC(0-∞) (μg/L per hour)MRT(0-t) (h)Tmax (h)Cmax (μg/L)
Magnolol
Sham1.58 ± 1.0624.89 ± 9.876.6 ± 1.850.71 ± 0.253.47 ± 2.13
AP1.11 ± 0.485.739 ± 1.8889.202 ± 2.270.428 ± 0.2821.491 ± 0.596
t1.08214.62042.21561.83292.2431
P0.30460.0010.05110.09670.0487
Hesperidin
Sham0.45 ± 0.25479.39 ± 225.945.62 ± 2.450.67 ± 0.1389.38 ± 25.02
AP0.69 ± 0.36162.98 ± 69.764.93 ± 2.2331.25 ± 0.5953.7 ± 22.026
t1.34133.29530.51332.31412.5744
P0.20950.00810.61890.04320.0277
Naringin
Sham1.47 ± 1.57623.24 ± 332.556.43 ± 2.10.64 ± 0.2488.23 ± 23.66
AP1.1 ± 0.7267.68 ± 53.657.12 ± 1.960.83 ± 0.1345.13 ± 9.59
t0.52722.58520.56591.7324.0511
P0.60950.02720.58390.11390.0023