Membrane oxygen enrichment gives advantage over other oxygen source when applied to medical healthcare for being curative,safe,economical,convenient,small,light,durable,easy to operated,reliable and free from side-effect.The products related,for instance membrane oxygen enricher,membrane oxygen-bar air-conditioner,mobile oxygen-bar and so on,are the best sources of oxygen supply for long-term oxygen therapy,healthcare for healthy people and oxygen enriched room at high altitude.

Objective To study the computed tomograhpy (CT) features of non-tuberculous mycobacteria (NTM) and multidrug-resistant pulmonary tuberculosis (MDR-TB), and to improve the differential diagnosis of the disease. Methods The CT imaging data of 67 patients diagnosed with NTM pulmonary disease (NTM lung disease group) and 103 patients with MDR-TB (MDR-TB group) were selected from January 2010 to December 2015 in our hospital. The imaging findings and differences in lesion location were compared between two groups. Results Lesions of NTM lung disease occurred in the posterior segment of the posterior and posterior lumbar dorsal (Ⅰarea), clustered lobular central nodules, accompanied by bronchiectasis and subpleural thin wall empty, rare bronchial foci. MDR-TB lesions occurred in the middle lobe of the right lung and the upper lobe of the left lung (Ⅱarea). The upper lung of the lungs were patch, nodules and caseous lesions, with thick wall and chronic lung inflammation, showing thick wall empty, pulmonary consolidation, atelectasis, calcification (lung), hilar mediastinal lymph node calcification, lung volume reduction, pleural thickening and pleural effusion. Conclusion Chest CT images are similar in NTM lung disease and MDR-TB, but there are differences. The detailed analysis of image features can provide a basis for clinical differential diagnosis.

AIM:To evaluate the inhibitory effect of FRNK on the phosphorylation of FAK and apoptosis in hepatic stellate cells (HSCs). METHODS: After stimulated with fibronectin, HSCs was transfected with FRNK plasmid by cationic liposome method. The apoptosis of FRNK-induced HSCs was examined by Annexin-V/propidium iodide double-labeled flow cytometry (FCM), gel electrophoresis and transmission electron microscope. The protein levels of FRNK, FAK and p-FAK (Tyr397) in HSCs were assayed by Western blotting, and RT-PCR was used to detect the expression of mRNA. RESULTS: The expression of FRNK was enhanced and the phosphorylation of FAK was inhibited after FRNK was transiently transfected into HSCs in vitro. The apoptotic rate in HSCs exposed to FRNK plasmid for 48 h was higher than that in the non-FRNK plasmid group [(25.37?1.92) % vs (9.28?1.05) %, P

Objective To investigate the effect and mechanism of FRNK on the proliferation of Hepatic Stellate Cells in vitro.Methods FRNK plasmid mediated by cationic liposome was transfected into HSCs.The proliferation of HSCs was evaluated by modified MTT assay.The level of FRNK,FAK,p-FAK(Tyr397),ERK1 and p-ERK in HSCs were assayed by Western blot and RT-PCR.Results Compared with nFRNK plasmid group,FRNK inhibited the proliferation of HSCs and the inhibition rates at 12,24 and 48 h were 20.07%,26.16% and 29.77%(P

OBJECTIVE To investigate the correlations on hepatitis B virus(HBV)preS1-antigen(preS1-Ag)and HBV-DNA,HBV markers in patients with hepatitis B.METHODS The markers,preS1-Ag and HBV-DNA were determined by ELISA and PCR in 406 patients with hepatitis B and 80 healthy persons.RESULTS The positive rates of preS1-Ag in 160 patients with HBsAg(+)and HBeAg(+)were 84.4%.The positive rates of preS1-Ag in 246 patients with HBsAg(+)and HBeAg(-)were 42.3%;the difference between them was significant(?2=70.9,P

AIM: To study the influence of basic fibroblast growth factor(bFGF) on treating ed palatal perforation in rats. METHODS: bFGF was given to the early palatal perforation in rat. The granulation tissues in perforations were grossly and pathologically obserVed. RESULTS: The the of wound healing was significantly in- crease in the bFGF group (P

AIM: This study was conducted to evaluate the bone repairing ability of coral artificial bone(CAB) composite of human recombinant bone morphogenetic protein-2(rhBMP-2-CAB) implanted into extraction sockets. METHODS: 12 adult dogs served as the experimental animals. Immediately after extraction of the upper second and third incisors, rhBMP-2-CAB and CAB were respectively implanted into each site of extraction sockets. The bone repairing ability of the two grafts was analyzed with histology, image analysis system and radionuclide bone imagining at 4th, 8th and 12th week, respectively. RESULTS: rhBMP-2-CAB were absorbed gradually after implanted into alveolar bone defect and were replaced completely by bone at 12 weeks. The ratio of new bone formation of rhBMP-2-CAB was significantly higher than that of CAB at different time( P

Objective:To synthesize substituted pyridine propynyl carbamates and to test their antimicrobial activities. Methods: Eight novel compounds were designed and synthesized. Antimicrobial tests in vitro were carried out with 8 common mildews (Aspergullus niger, Aspergillus flavus, Aspergillus versicolor, Trichoderma viride, Paecilomium varioti Bainier, Chaetomium globsum, Penicillium citrinum, Cladochytrium clodospoium) and 5 bacteria (Escherichia coli, Pseudomonas fluorescens, Bacillus fluorescens, Bacillus megatherium). Results: All compounds synthesized showed antimicrobial activity, especially the compound 1f, whose activity was more potent than that of compound 3-iodo-2-propynyl-butyl-carbamate (IPBC). Conclusion: Compound 1f is worth further studying and exploration.

AIM: To investigate the effect of FAK - related non - kinase ( FRNK) on the expression of membrane - type matrix metalloproteinase -1 ( MT1 - MMP) in hepatic stellate cells ( HSC). METHODS:FRNK were trans-fected into HSCs by cationic liposome method. The protein levels of FRNK in HSC were assayed by Western blotting. The levels of MT1 - MMP were determined by RT - PCR for mRNA and by Western blotting for protein, respectively. RESULTS: The up -regulated expression of FRNK protein was observed and it was at 48 h after transfection that the FRNK protein content was the highest ( P < 0.05 ). The expressions of MT1 - MMP mRNA and protein were also up - regulated by the transfection of FRNK, and it was at 48 h after transfection that the MT1 - MMP protein content was significantly increased. CONCLUSION: The mRNA and protein of FRNK were over - expressed in HSC transfected with the gene of FRNK. The inhibitory effect of FRNK on the collagen synthesis in HSC may be through the up - regulation of MT1 - MMP.

Objective To study the protective effect of intraaortic protamine injection on lung in infants undergwent opening heart operation by cardiopulmonary bypass surgery. Methods Sixty infants (age ≤ 1 year,weight ≤ 10 kg)who accepted opening heart operation by cardiopulmonary bypass surgery were randomly assigned into 2 groups ( n = 30 in each group) reciving intra-aortic and intra-venous protamine injection respectively. P-peak, P-plate, CL, Oxygenation Index, the number of WBC and neutrophil segregated in lungs were compared between two groups before injecting protamine and 10 minutes, 1 hour, 3 hours after injecting protamine. The time of mechanical ventilation were compared as well. Results P-peak, P-plate, the number of WBC and neutrophil segregated in lungs of intra-aortic injection group significantly decreased than intra-venous injection group at 1 hour, 3 hours after injecting protamine (t =2.743, 3.512; 3.218, 3.469; 3.716, 5.243; 3.853,4. 783 respectively, Ps ＜ 0. 05 ), while the CL and Oxygenation Index increased significantly ( t = 3. 976,4. 267; 4. 557,4. 265 respectively, P ＜ 0. 05 ). The duration of mechanical ventilation follow operation in intraaortic injection group ( [8. 03 ± 5. 14] h ) was shorter compared with intra-venous injection group ( [10. 56 ±6.95]h) (t =2.599,P＜0.05). Conclusion By intra-aortic protamine injection the lung injury decreased significantly. It shows good protective effect on lung in infants underwent opening heart operation by cardiopulmonary bypass surgery.