Objective To observe the effect of traditional Chinese medicine combined with ambroxol aerosol inhalation on patients with chronic obstructive pulmonary disease(COPD) in an acute stage. Methods 70 patients with COPD in an acute stage were randomly recruited into a control group and a treament group. The control group was treated with conventional western medical treatment and the treatment group was treated with traditional Chinese medicine combined with ambroxol aerosol inhalation based on the conventional western medical treatment Lung function (FEV1 and FVC) and clinical symptoms were observed after treatment. Results Compared with the control group, lung function (FEV1 FVC) and clinical symptoms in the treatment group were apparently improved after the treatment (P<0.05) .Conclusion Traditional Chinese medicine combined with ambroxol aerosol inhalation may improve clinical symptoms and lung function of COPD patients in an acute stage.

Objective To investigate the liver damage caused by single high-dose intake of ethanol in mice. Methods Twenty-four male Kunming mice were randomized into 2 groups. The mice in ethanol group were treated with single dose of ethanol (50%,V/V,12 ml/kg),while the control mice received distilled water. The serum biochemical indices were determined 16 h after ethanol exposure. The hepatic triglyceride (TG) and free fatty acid (FFA) levels and the histological changes were examined to evaluate the fat accumulation,while the Ca2+-induced mitochondrial permeability transition (MPT) was detected for the mitochondrial function assay. The liver and mitochondrial malondialdehyde (MDA) and glutathione (GSH) levels were determined to assess the lipid peroxidation level. The activities and the protein expression of the CYP2E1,1A2,3A were determined. Results Slow response,ataxia and righting reflex disappearance were gradually emerged,which disappeared at about 3 h later. Compared with the control group,the liver index,the serum ALT and AST activities,the hepatic TG,FFA,and MDA levels,and the activity and protein level of the CYP2E1 significantly increased,while the liver GSH level significantly decreased (P0.05). In addition,A540 of ethanol group was higher than that of control group (P

Objective To learn the effect on carcinoma xenograft in nude mice by inhibiting human papillomavirus 16(HPV16) E6 gene expression in CaSki cell. Methods The recombinant plasmids expressing HPV16 E6 small interference RNA (siRNA) were transfected into CaSki cell. The cells expressing recombinant plasmid was screened out with G418. The expression of E6 mRNA was determined by RT-PCR. The cells were inoculated into BALB/c nude mice subcutaneouly and the growth of the xenograft carcinoma was observed. After the pGensil-CH2 recombinant was injected into the carcinoma, the growth of carcinoma and pathological changes of carcinoma were observed. Results The CaSki cell expressing E6 siRNA was obtained, and HPV16 E6 mRNA expression in CaSki cell was down-regulated. The oncogenicity of the CaSki cell expressing E6 siRNA was degraded, the inhibition rate was up to 71.4% as compared with that of control group. The growth of tumor in nude mice was inhibited after the E6 siRNA plasmids were injected into the nude mice. The volume and weight of the tumor treated by siRNA were smaller than that of control group significantly. More necrotic area and less cell division phase were observed under light microscope in the E6 siRNA treated tumor. Conclusion The oncogenicity of the CaSki cell was degraded after silencing HPV16 E6 gene in CaSki cell by E6 siRNA.

Objective　To investigate the association between gene polymorphism of the plasminogen activator inhibitor-1 (PAI-1) and myocardial infarction (MI) in Chinese. Methods　PAI-1 genotyping with polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and allele specific polymerase chain reaction (ASPCR) was performed in 87 myocardial infarction patients and 92 unrelated healthy controls. All subjects'clinical features and PAI-1 activity were tested. Results　There were two polymorphisms within the promoter, a G/A single base substitution polymorphism upstream at -844*!bp, and a single guanosine deletion/insertion 4G/5G polymorphism -675*!bp upstream from the start of transcription. Significant differences between the patients and the controls were observed neither for the frequencies of the GG, GA and AA genotypes nor for the PAI-1 activities of these three types. But for the 4G/5G polymorphism, there were significant differences between patients and controls for the frequencies of the 4G/4G, 4G/5G and 5G/5G genotypes (P<0.05). In the MI group, the PAI-1 activity of the 4G/4G type was significantly higher than that of the 5G/5G type (P<0.05). Further more, a positive correlation between the glucose level and PAI-1 activity was found (r=0.34, P=0.02). Conclusion　This study indicates that the 4G/5G gene polymorphism of PAI-1 is associated with myocardial infarction, that 4G/4G type is probably an important hereditary risk factor, and that glucose has functional importance in regulating PAI-1 activity.