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OBJECTIVE：To study the sta bility，in vivo release characteristics and tissue distribution of docetaxel （DTX）- dihydroartemisinin（DHA）conjugated prodrug self-assembled nanoparticles （DTX-S-S-DHA NPs ）. METHODS ：HPLC method was adopted to analyze DTX-S-S-DHA in vitro . The phycial and long-term stability of DTX-S-S-DHA NPs in mediums [water ， saline，phosphate buffer （PBS，pH 7.4）and RPMI 1640 medium] were investigated by using particle size ，polydispersity index （PDI）and encapsulation efficiency （EE）as evaluation indexes. The in vitro release characteristics of DTX-S-S-DHA released from DTX-S-S-DHA NPs was also investigated with small glass method ，using 30％ ethanol solution with or without 10 mmol/L dithiothreitol（DTT）as medium. The small live animal imager was adopted to investigate the tissue distribution and tumor targeting capability of DiR-labeled DTX-S-S-DHA NPs （DTX-S-S-DHA/DiR NPs ）in breast cancer bearing mice. RESULTS ：In stability test，there was no statistical difference in particle size ，PDI and EE of DTX-S-S-DHA NPs incubated in water ，normal saline ，PBS and RPMI 1640 medium for 24 h. When stored at 4 ℃，with the increase of storage time ，the particle size of DTX-S-S-DHA NPs in normal saline gradually increased ，while those in PBS gradually decreased ；EE of both gradually decreased to less than 75％， but there was no significant change in particle size ，PDI and EE of DTX-S-S-DHA NPs in water and RPMI 1640 medium. In the in vitro release experiments ，DTX-S-S-DHA in DTX-S-S-DHA NPs was not released in the release medium containing 10 mmol/L DTT；at 24 h，the cumulative release rate of DTX-S-S-DHA released from DTX-S-S-DHA NPs in release medium without DTT was about 83％，which was in line with first-order kinetic model. In tissue distribution test ，the distribution of DTX-S-S-DHA/DiR NPs in tumor sites of mice was significantly more than in other tissues （heart，liver，spleen，lung and kidney ）. CONCLUSIONS ： DTX-S-S-DHA NPs show good physical stability in different mediums ，especially have good long-term stability in water and RPMI ； 1640 medium；they can quickly release the parent drug in the reduction environment and has good tumor targeting.
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OBJECTIVE:To investigate new thought and method for improving the practice teaching effect of pharmacy under-graduates under the collaboration of medicine and education. METHODS:The training objectives of pharmacist team,the current sit-uations and problems of teaching that existing in the institute of pharmacy and the requirement of talents in the work were summa-rized and investigated,and then reform targets and measures were put forward. RESULTS:Training for pharmacists tream gradual-ly movedcloser to clinical pharmacists in China.The teaching work in the pharmacy department of our hospital was relatively com-plete,including relevant teaching system,practice systems and processes,training program for clinical pharmacists and develop-ment of workflow;however,there still remained some problems,including lacking of professional quality training,suitable cours-es,effective interactive medical and education scientific assessment mode and no attention for the training of clinical thinking and school-university research thinking. The above-mentioned problems needed to be solved by reforming internship tutorial system and improving the contents,establishing the school-hospital united system,emphasizing the connection between schools and teaching bases,establishing integrated teaching evaluation system and assessment criteria,strengthening clinical experience and training for clinical thinking by the teaching mode of physicians and pharmacists. CONCLUSIONS:Strengthening the collaboration of medicine and education and improving the training standards and evaluation system are helpful for improving the practice teaching quality of pharmacy undergraduates.
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Objective To explore the clinical efficacy of Ebastine joint Compound Glycyrrhizin in treatment of acute and chronic urticarial, and its effect on serum IgE levels.Methods Eighty cases of a-cute and chronic urticaria patients were collected from January 2010 to June 2014 in our hospital for treat-ment.They were randomly divided into control group and observation group, 40 cases in each group, the patients in the control group oral ebastine 10mg 1 times /day, patients in the observation group were given Compound Glycyrrhizin on 75mg and oral ebastine 10mg, 1 times /d, acute urticaria patients were treated for one week of continuous treatment, patients with chronic urticaria were treated for 4 weeks in a row;IgE level was measured by ELISA.Results After treatment, effective rate of patients with acute urticaria was 94.44%in the observation group, the control group was 68.42%; patients with chronic urticaria observa-tion group was 95.45%, the control group was 71.43%, a significant difference ( P <0.05 ) between the observation group and control group.IgE levels in both groups after treatment were reduced compared with before treatment ( P <0.01), after treatment IgE levels of patients had higher degree of improvement in the observation group, differences were statistically significant ( P <0.05).Conclusions The clinical effica-cy of ebastine joint Compound Glycyrrhizin on treatment of acute and chronic urticaria are better than single ebastine, two drugs used in conjunction with synergistic effect by regulating the body's immune function, re-duce allergy strength, improve efficacy.
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To carry out the tutorial system for medical undergraduates,the students were allowed to participate in scientific research after class.They learned to consult technical data,to raise the task by themselves,practice the scientific work and to write the paper.Which is significant for training undergraduates' ability of scientific research and the sense of innovation sense.