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Objective To explore the infiltration and apoptosis of eosinophilia(EOS)and the influence of death receptor(Fas) and B cell lymphoma-2 (Bcl-2) expression after Belamcanda and Ephedra Decoction on asthma rats.Methods40 healthy rats of Holland were selected as the research subjects,they were divided into four groups: control group,asthma model group, dexamethasone group,Belamcanda and Ephedra Decoction group with 10 rats in each group.Rat asthma model was prepared by repeated stimulation of egg protein,the symptoms of asthma in each group were evaluated;the number of EOS infiltration in lung tissue was detected by staining method;EOS apoptosis was detected by methyl thiazolyl tetrazolium(MTT) method;Blot Western was used to detect the expression of Fas and Bcl-2 protein;the flow cytometry was used to detect the apoptosis of EOS in rat.ResultsCompared with the rats in the model group, dexamethasone group, Belamcanda and Ephedra Decoction group rats asthma symptoms were significantly reduced, scores were significantly lower (P< 0.05),there was no significant difference between Dexamethasone group and sheganmahuang Decoction group.In the asthma model group,the number of EOS infiltration and EOS% in venous blood and lung tissue were significantly higher than those in control group,EOS apoptosis rate was significantly lower than that of the control group (P< 0.05).In Dexamethasone group,Belamcanda and Ephedra Decoction group infiltration number of EOS and EOS% were significantly lower than that of model group but higher than the control group, the apoptosis rate of EOS protein was significantly higher than the model group and the control group (P< 0.05),there was no significant difference between Dexamethasone group and sheganmahuang Decoction group.The expression of Fas in dexamethasone group,Belamcanda and Ephedra Decoction group was significantly higher than the control group and model group (P< 0.05),Bcl-2 protein was significantly lower than the control group and model group (P< 0.05),there was no significant difference between Dexamethasone group and sheganmahuang Decoction group.Cell flow cytometry showed that the control group had no cell apoptosis,a large number of apoptotic cells were appeared after Belamcanda and Ephedra Decoction treat with.ConclusionBelamcanda and Ephedra decoction can induce apoptosis of EOS expression,it may be associated with the upregulation of Fas, downregulation of Bcl-2 expression.
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Objective To investigate the effects of clinical pathway-based teaching methods in clinical teaching of hematology. Methods Interns, which studied in department of hematology, were classified non-randomized into two groups. The interns in experimental group received idiopathic thrombocytopenic purpura (ITP) clinical pathway-based teaching. And the interns in the control group received the seventh edition textbook of medicine-based traditional teaching. All interns were oral tested when they finished two weeks period clinical studied of hematology. Meanwhile, a questionnaire designed for clinical pathway-based teaching was included in this test only for the experimental group. Results There were 32 interns recruited in the group of clinical pathway-based teaching and 38 interns in the control group of traditional teaching. There were statistically significant differences between the two groups in the fields of the key points about history of diseases ( = 0.0017), assessment of diagnostic criteria and differential diagnosis ( =0.0074), selection of laboratory examination items ( <0.0001) for ITP. The group of clinical pathway-based teaching achieved higher scores than the control group. However, there was no statistically significant difference between the two groups in the field of selection of first-line treatment measure of ITP ( = 0.1155) . Moreover, the control group achieved higher scores than the group of clinical pathway-based teaching in the field of how to treat ITP patients with first-line treatment failure ( =0.0003) . In addition,there were 93.8%interns in the experimental group accepted the new clinical pathway-based teaching tool in the survey. The open-ended question survey showed the clinical pathway teaching method was more simple, intuitive and standardizing than the traditional one. Conclusion The ITP clinical pathway, as an interns teaching tool of hematology, is helpful for understanding more clearly the diagnosis and treatment of ITP. However, an in-depth explanation is necessary combination with textbook of medicine study in the clinical teaching of ITP.
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Objective To examine the efficacy and adverse reactions of bortezomib-based chemotherapy in treatment of multiple myeloma (MM).Methods Twenty-eight patients with multiple myeloma received a joint chemotherapy containing bortezomib.The efficacy was determined according to EBMT criteria.Results 28 patients received the chemotherapy,20 patients were newly diagnosed and 8 patients were relapsed or refractory.25 patients can be evaluateed efficacy.The total response rate was 100 ％ (25/25),consisting of 5 patients with complete response (CR),10 patients with almost complete remission (nCR),10 patients with partial remission (PR).The main side effects include peripheral neuropathy,thrombocytopenia,gastrointestinal disorders and viral infections.These side effects were improved by symptomatic treatment and generally did not affect the treatment.Conclusion For the newly diagnosed and relapsed or refractory multiple myeloma cases,bortezomib-based chemotherapy is a safe and effective therapeutic drug with rapid onset,high treatment response rate,and adverse reaction can be tolerated.
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Objective To construct multiple myeloma mucin MUC1-2VNTR gene eukaryotic expressing vector,which provided the basic material for further study of multiple myeloma DNA vaccine.Methods MUC1-2VNTR coding gene as target gene,and a KOZAK sequence was inserted before it.Hind Ⅲ and Xba Ⅰ restriction enzyme site were inserted on both ends.Then the whole sequence was synthesized and cloned into pcDNA3.1/myc-his B vector,and the recombinant vector was identified by restriction enzyme digestion and DNA sequencing.Results Synthesized MUC1-2VNTR gene was 140 bp.Restriction enzyme digestion and DNA sequencing confirmed pcDNA3.1/MUC1-2VNTR/myc-his B including the whole exact translation frame region and MUC1-2VNTR gene.Condnsion The pcDNA3.1/MUC1-2VNTR/myc-his B has been successfully constructed,which provides the basic material for further studies of MUC1 mucin function and multiple myloma DNA vaccine.