Clinical Laboratory Techniques ; Drug Resistance, Bacterial ; Humans ; Microbial Sensitivity Tests ; Mycobacterium tuberculosis ; drug effects ; Tuberculosis ; diagnosis

Humans ; Recurrence ; Respiratory Tract Infections

Antitubercular Agents ; pharmacology ; Drug Resistance, Bacterial ; Humans ; Microbial Sensitivity Tests ; Mycobacterium tuberculosis ; drug effects ; isolation & purification ; Tuberculosis, Multidrug-Resistant ; diagnosis ; microbiology

AIM: To investigate the role of NF-κB in diabetic neuropathy.METHODS: The diabetic rats were induced by intraperitoneal injection of streptozocin ( STZ) .The pain behavior test was used to detect the mechanical and thermal withdraw threshold of the rats’ bilateral hind paws.The protein levels of p-NF-κB and t-NF-κB in the rats’ L4 and L5 dorsal root ganglions ( DRG) were determined by Western blotting.The expression of Nav1.7 in DRG of diabetic neuropathy rats with or without NF-κB inhibitor PDTC was detected by the method of immunohistochemistry.RESULTS:The mechanical and thermal withdraw threshold of bilateral hind paws in the diabetic rats was decreased from 4 weeks to 12 weeks after injection of STZ.The protein levels of p-NF-κB in L4 and L5 DRG were significantly increased in the rats with diabetic neuropathy.Intrathecal administration of NF-κB inhibitor PDTC attenuated the increase in p-NF-κB and Nav1.7 in L4 and L5 DRG.Pain behaviors were also alleviated by PDTC.CONCLUSION:The increase in p-NF-κB is closely rela-ted to the generation of diabetic neuropathy.Inhibition of NF-κB blocks pain behaviors and the over-expression of Nav1.7 in DRG.

Objective To observe the clinical efficacy of Qingjinchangfei drink for treating AECOPD.Methods We Used random number table to separate 84 patients in to two groups:treatment group and control group.The treatment group used western medicine conventional treatment and Chinese medicine decoction Qingjinchangfei drink.The control group used western medicine conventional treatment.Both two groups were 14 days treatment.We recorded the improvement of symptoms and signs everyday.We compared the lung function,inflammatory cytokines,such as IL-8、IL-2 before and after treatment in the two groups.Results The total efficient in treatment group was obviously better than that in control group.The indicators such as clinical symptoms,signs,pulmonary function indicators were obviously better than that in control group.Compared with before treatment,IL-8,ET,MDA and TNF-? in sputum and blood were obviously lower but IL-2 was obviously higher.Conclusion Qingjinchangfei drink plus western medicine conventional treatment for treating AECOPD was obviously better than western medicine conventional treatment.

Objective To identify a unique protein as a novel genetic marker for rapid molecular typing of Mycobacteriutn tuberculosis Beijing genotype strains by comparing the proteome of Beijing genotype strains with non-Beijing strains.Methods Fifty-six clinical isolates of Mycobacterium tuber- culosis were analyzed by spoligotyping to determine genotypes.The two-dimensional electrophoresis (2 DE)was used to compare the global protein patterns between Beijing genotype strains and non Bei jing strains.Differential expressed proteins were measured by matrix assisted laser desorption ioniza tion lime of flight mass spectrometry(MALDI-TOF-MS).The data obtained from peptide mass fingerprinting were compared in protein database.The genes encoding differential expressed proteins and their upstream were sequenced.Results Forty nine of the 56 isolates were Beijing genotype strains and 7 isolates were non-Beijing strains.A unique protein Rv0927c was identified,which is absent in Beijing genotype strains compared with 7 non Beijing strains and H37Rv.There were two characteristic mutations in Beijing genotype strains,a deletion of AGC at nucleotide position 421 of Rv0927c and a 127 G→A muta- tion in the upstream of Rv0927c.but not in non Beijing strains and H37Rv.Conclusion Characteris tic mutations of Rv0927c in Beijing genotype strains can be used as a novel genetic marker for rapid molecular typing of Mycobacteriuln tuberculosis Beijing genotype strains and non Beijing strains.

Objective To investigate the increased expression of microRNA-146a(miR-146a) in peripheral blood mononuclear cells (PBMC) of patients with chronic immune thrombocytopenic purpura (ITP) and its clinical significance. Methods Twenty-eight patients with chronic ITP and 28 healthy controls matched with age and gender were enrolled in this study. Fluorescent quantitative PCR reaction was used to detect the relative expression of miR-146a in their PBMC. The serum concentration of TNF-α, IL-2,IL-1 β and IFN-γ were measured by ELISA. CCK-8 method was used to detect the proliferation ability of PBMC , which transfected with miR-146a mimics or inhibitor and then stimulated with platelet . Results The relative expression of miR-146a in ITP patients was higher than that of healthy controls. The increased expression of miR-146a was negatively correlated with the serum TNF-α, IL-2 and IFN-γ. The PBMC transfected with miR-146a mimics had reduced expression of IL-2 and proliferation when stimulated with platelet.In contrast, the opposite effect was observed with the miR-146a inhibitors transfection. Conclusion MiR146a was involved in the pathogenesis of chronic ITP by controlling IL-2 production and PBMC proliferation.Thus, it may be a potential therapy target for chronic ITP.

Adult ; Fracture Fixation, Internal ; Fractures, Ununited ; surgery ; Humans ; Male ; Scaphoid Bone ; injuries ; surgery

Objective To identify the effect of SBAR (situation, background, assessment, recom-mendation) in OR (operating room)nursing teaching rounds. Methods According to internship turns, rou-tine group (even number, Group A:68 students) and SBAR group (odd number, Group B:70 students) were chosen by drawing lots. Group A used conventional mode for history report, while Group B used SBAR mode. Students' performance was evaluated by OR nurse students' rounds standard scale and the reporting time was recorded. Each nurse students filled in Communication Self-efficacy Evaluation Form on the fifth week in OR. The information was input into excel. The results of the two groups were compared with SPSS 11, and the data were analyzed by chi square test and t test. Results The average reporting quality score was 16.74 for Group A, and 18.66 for Group B. The average score of Group B was higher than that of Group A. Compared with the cases scores above 18 between the two groups, the result was statistically significant, P=0.039. The average score of communication Self-efficacy in Group A was 42.88, while it was 44.94 in Group B, which showed that Group B had better score than that of Group A. Significant differences was found between the two groups when compared the cases with score above 45, P=0.010. The average reporting time was (2.42±1.16) minutes for Group A and (2.32±1.21) for Group B, and there is no significant differences between the 2 groups. Conclusion SBAR is helpful for improving students communication Self-efficacy, and making progress on nursing round reporting quality,and it is worth promoting in clinical teaching.

Objective To observe hypoxia-induced pulmonary arterial endothelial-to-mesenchymal transition and investigate the role of transforming growth factor β1 (TGF-β1) in the process. Methods Pulmonary arterial cells improved by adherence method were cultured in normoxia (containing 21%O2,5%CO2 and 74%N2) or hypoxia (containing 1%O2,5%CO2 and 94%N2) for 1,4,or 7 days,respectively. Endothelial-to-mesenchymal transition was confirmed with morphological observation and expression of α-smooth muscle actin (α-SMA) by immunocytochemistry. Expression of TGF-β1 was evaluated by RT-PCR and Western blot,and α-SMA by Western blot. Results Hypoxia-induced paving-stone-like pulmonary arterial endothelial cells transdifferentiating to polygonal cells with high-expression of α-SMA. TGF-β1 expression was increased significantly after 7 days of hypoxia. TGF-β1 stimulating alone increasedα-SMA expression of pulmonary arterial en-dothelial cells;while,SD-208,inhibitor of TGF-β1,abolished the above effect. Conclusion Hypoxia can induce endothelial-to-mesenchymal transition. And TGF-β1 plays an important role in the process.