Influence of medical exercise on rehabilitation of patients suffering from chronic obstructive pulmonary disease / 中国康复理论与实践

@# ObjectiveTo observe the influence of medical exercise on rehabilitation of patients suffering from chronic obstructive pulmonary disease (COPD).Methods26 COPD patients who were organized in the form of training class practised medical exercise for three months. Respiratory function, exercise capacity and psychological health level were assessed respectively before and after exercise.ResultsValues of forced vital capacity(FVC), forced expiratory volume in one second (FEV1), FVC% , FEV1/ FVC and 6-minute walking distance (6MD) were significantly higher after medical exercise than before(P<0.01). Anxiety and depression scores also notably dropped after medical exercise than before(P<0.01).Conclusions Medical exercise can remarkably improve respiratory and moving capacity and decrease anxiety and depression of patients suffering from chronic obstructive pulmonary disease.

Effects of HMGA1 silence by RNA interference on the apoptosis and cell cycle of hepatocarcinoma cells / 中国免疫学杂志

Objective:To develop HMGA1-silencing SMMC-7721 cell and investigate its impacts on apoptosis and cell cycle in tumor cells.Methods:Constructing HMGA1-silencing SMMC-7721 cell through G418 selection of RNAi plasmid transfected cells;surveying the apoptosis,prliferation and cell cycle of the tumor cells by FACS and MTT.Results:Stable HMGA1-silencing cells were obtained successfully.The apoptosis percentage in RNAi group(29.46?3.04%) was significantly higher than that in the negative control (1.96?0.76%) or control (2.04?0.70%)within each P

The study of malignant transformation of NIH3T3 cells induced by transfection of HMGA1 gene / 中国免疫学杂志

Objective:To establish a mouse fibroblastic cell line stably transfected with HMGA1 gene,and to use the cell line to investigate the role of HMGA1 in tumor development and progression.Methods:Eukaryotic expression vector pcDNA3.0-HMGA1 was transfected into NIH3T3 by lipofectamine-mediation.Stable transfectants were selected by G418.The expression of extraneous HMGA1 gene was analyzed by RT-PCR and DNA sequencing.Cell growth was measured through MTT and the cell cycle by FCM.Soft agar colony formation was employed to analyze the ability of anchorage-independent growth.The expression of the immune inhibition factors of VEGF and FasL mRNA was detected by RT-PCR.Results:NIH3T3 cell lines stably expressing HMGA1 gene were successfully established.Comparing with controls,the HMGA1 gene-transfected cells grew faster,acquired the ability of anchorage-independent growth and expressed the immune inhibition factors of VEGF and FasL mRNA.Conclusion:Extraneous expression of HMGA1 gene can induce malignant transformation of NIH3T3 and modulate mRNA expression of immune inhibition factors.HMGA1 gene plays a key role in tumor development,progression and immune escape.