ABSTRACT
The research on fingerprint pharmacokinetics will help entirely explore the internal diversity information of drugs especially natural products, and also can combine with the drug effect. Using fingerprint technology to study pharmacokinetics will more literally reflect the entirety of drugs and find the diversity regularity of the absorption, distribution, metabolism, and egestion of drugs. Using fingerprint technology to study pharmacokinetics of Chinese materia medica (CMM) is one of the critical technologies in modernization of CMM, and these researches will push the study on administration mechanism and development of CMM. Therefore, we propose to construct the "fingerprint pharmacokinetics" in our research. This thesis fairly analyzses the formation, research situation, application analysis, and application prospect of "fingerprint pharmacokinetics".
ABSTRACT
At present, fingerprint has become an effective mean recognized internationally in controlling the quality of Chinese materia medica (CMM) or natural products. In recent years, there are some exploratory studies on the fingerprint of natural product, while only the injection of CMM has taken the fingerprint as one of the quality criteria. Other fingerprint studies on natural products were all staying in the researching phase. There are many reasons for the bottleneck of natural product fingerprint research, such as the component complexity of natural product. There are always a lot of impurity peaks in the analytic result of fingerprint, while it is very difficult to dissociate these impurity peaks by forthcoming analytic methods. Therefore we propose to construct the "interval fingerprint". The studies and analyses on the construction program, approach, model, and application problem of the "interval fingerprint" have been carried out with Shen'an Granule as the example.
ABSTRACT
<p><b>OBJECTIVE</b>To study the factors affecting cyclodextrin (CD) inclusion of the volatile components in compound traditional Chinese medicines and evaluate the stability of the inclusion compound.</p><p><b>METHODS</b>This study took Gengnian compound as an example to examine the factors affecting the inclusion process according to the inclusion compound utilization ratio. Orthogonal design method was employed optimize the parameters in the inclusion process. The moisture absorption rate of the beta-CD inclusion compound was determined in different humidity and Q10 was used to predict its.</p><p><b>RESULTS</b>The inclusion method, inclusion compound dosage, temperature, inclusion time, and the drying method could all obviously influence the inclusion process. The results of orthogonal design study showed that the optimal beta-CD inclusion of Gengnian compound volatile components could be achieved by adding 8-fold volume of beta-CD and stirring for 3 h at room temperature. Stability experiment showed that the humility did not significantly influence the inclusion compound, which can be stable for 1.26 years.</p><p><b>CONCLUSION</b>This study comprehensively examines the factors affecting the inclusion process and the stability of the inclusion compound, and provides experimental basis for application and study of the inclusion technology.</p>