Effect and mechanism of heat shock protein inhibitors on cell proliferation and apoptosis in human nasopharyngeal carcinoma / 中国耳鼻咽喉头颈外科

OBJECTIVE To study the effect of different concentrations of 17-AAG and EGCG monotherapy or in combination on the induced apoptosis in human nasopharyngeal carcinoma, and to explore new molecular targets for the treatment of nasopharyngeal carcinoma. METHODS MTT colorimetric method and fluorescent staining were used to detect the change of CNE proliferation inhibition rate and cell morphology. And furthermore, the expression level of Bcl-2, Bax, Caspase-3 were detected by RT-PCR. RESULTS 1. 17-AAG or EGCG alone had inhibitory effect on the human nasopharyngeal carcinoma CNE cells at 24 h, 48h and 72 h, and it was related with time and dose(P<0.01). The inhibition effect of combination of 17-AAG and EGCG was significantly increased,which was time and dose dependent(P<0.01). 2. RT-PCR was used to detect the mRNA expression level of Bcl-2, Bax and caspase-3. The level of Caspase-3 and Bax mRNA expression after treated by 17-AAG and EGCG was significantly higher, and the level of bcl-2 mRNA expression was lower than that after treated by 17-AAG or EGCG alone. CONCLUSION Our investigation implied that 17-AAG and EGCG in combination can effectively inhibit the proliferation of human nasopharyngeal carcinoma CNE cells. The involved mechanisms may be associated with the upregulation of Bax and Caspase-3 expression.

Application of diary therapy for out-of-hospital rehabiditation of schizophrenia patients with first hospitalization / 中国实用护理杂志

Objective We discussed the influence of diary therapy for out-of-hospital rehabilitation of schizophrenia patients with first hospitalization. Methods Ninety schizophrenia patients with first hospitaliza-tion and who were during rehabilitation period were randomized into the intervention group and the control group with 45 cases in each group.The two groups both received systemic antipsychotics medication.The control group adopted general health education while the intervention group got diary therapy based upon general health education.The treatment effect was evaluated by medical and nursing staff with abundant experience using the self-medication compliance questionnaire,the brief psychiatric rating scale(BPRS)and social disability screening schedule(SDSS)at the first day,6th month and first year after intervention. Results The total score of BPRS,SDSS,medication compliance and relapse rate in the intervention group was statistically better than those of the control group. Conclusions Diary therapy could facilitate the recovery of racial function,improve the medica-tion compliance,reduce the relapse rate and increase life quality for schizophrenia patients.