ABSTRACT
Objective To compare the pharmacokinetics of borneolum syntheticum(BS)and borneol in compound Danshen dropping pills in rats.Method Rats were administrated orally with BS or Danshen dropping pills containing equal amount of borneol in a single dose.The blood contents of borneol at a series of time points were assayed by GC-MS and GC-FID after administration.The drug-time curve was estimated by PK Solution 2.0 pharmacokinetic software(USA).Results The pharmacokinetic parameters are quite different between the single dose of BS and the borneol in the compound Danshen dropping pills:the velocity constants of absorption(2.630h-1),distribution(1.788 h-1)and elimination(0.273 h-1)of BS were much greater than those(1.635h-1,0.784h-1,0.116h-1)of the same quantity of borneol in compound Danshen dropping pills,while the Tmax(0.5 h)of former was shorter than that(0.75 h)in the latter,and the Cmax(16.8 ?g/mL)in the former was about half of the latter(31.02 ?g/mL).And,at the 18h after administration,the former blood concentration(0.043 ?g/mL)was approximately one tenth of the latter.Conclusion It is suggested that we should pay attention to the influence of other ingredients on the main objective component in the study of pharmacokinetics of compound traditional chinese drug.
ABSTRACT
AIM:To analyze the chemical constituents of essential oils from three different parts of Alpinia zerumbet.METHODS:The oils were extracted by steam distillation.The chemical compounds were separated and identified by GC-MS.The relative content of each component was determined by area normalization.RESULTS:Fifty-five,sixty-seven,and sixty-six compounds from seed pericarp and capsule of Alpinia zerumbet were identified respectively.The ratios of identification of total compounds were 99.86%,95.83% and 95.52%,respectively.CONCLUSION:There are some differences among three different parts of Alpinia zerumbet.It provides the research base for advanced research and development.