Objective To analyze the diagnosis, therapy and prognosis of the most severe type ulcerative colitis or critical ulcerative colitis. Methods Forty cases of severe ulcerative colitis in recent 18 years in our hospital were reviewed. Based on the criteria from literatures, a self generated criterion was used to identify the critical ulcerative colitis, i.e.: ① bloody stool≥9 times/d;② body temperature≥38?C;③ pulse rate≥90 beats/min;④ Hb

Objective: To detect the levels of plasminogen activator inhibitor-I (PAI-1), transforming growth factor-β (TGF-β)and tumor necrosis factor-α (TNF-α) in the pleural fluid before and after intrapleural injection of Kanglaite combined with Cisplatin, and the mechanisms thereof. Methods: Patients were randomly divided into three groups, the Kanglaite combined with Cisplatin group (combination treatment group), Kangkaite group and Cisplatin group. The levels of PAl-1, TGF-β and TNF-α were determined by ELISA in pleural effusion 24 h and 48 h before and after intrapleural injection of medicine. Results: The levels of PAI-1, TGF-βand TNF-αawere higher 24 h and 48 h after treatment compared with those of pre-treatment in three groups (P＜0.05). There were no statistical significances in levels of PAI-1 and TGF-β24 h after injection medicine in three groups. But the level of TNF-α was higher in the combination treatment group than that in Kangkaite and Cisplatin groups(P＜0.05). After injection medicine 48 h, the levels of PAl-I, GF-β and TNF-α were higher in the combination treatment group than those in Kangkaite group (P＜0.05). Conclusion: The treatment of Kanglaite combined with Cisplatin activates PAI-1, TGF-β and TNF-αcytokines and causes inflammatory, suppresses fibrinolytic activity. These cytokines promote fibrin and induce pleural adhesion.

Objective To investigate the correlation of left ventricular ejection fraction (LVEF) as well as serum levels of NT-proBNP, Hcy and D-Dimer (D-D) with different traditional Chinese medicine (TCM) syndrome types of chronic heart failure (CHF). Methods A total of 178 CHF patients were divided into heart function normal ejection fracture group (HF?NEF, n=86) and heart function reduction (HFREF, n=92) according to their LVEF performance. Another 35 cases with nor?mal cardiac function were included in control group. All CHF patients was also divided into 3 TCM syndrome types:both de?ficiency of Qi and Yin syndrome group(n=64),Qi asthenia causing blood stasis syndrome group(n=59) andYang defi?ciency water stop group (n=55). All patients were examined with cardiac color doppler and LVEF values were recorded. And serum NT-proBNP、Hcyand D-D levels were all quantified. Results As to serum levels of NT-proBNP, Hcy and D-D, they were higher in HFREF group than those in HFNEF group than those in control group. On the other hand, LVEF was lowest in HFREF group but highest in control group. All differences were statistically significant (P<0.05). Among patient in HFNEF group, LVEF in theYang deficiency water stop groupwas lower than that inboth deficiency of Qi and Yin syn?drome group(P<0.05). Serum levels of NT-proBNP, Hcy, and D-D were not significantly different between different TCM syndrome groups. By contrast, among patients in HFREF group, LVEF values did not differ significantly between different TCM syndrome groups. Serum level of NT-proBNP was lower inboth deficiency of Qi and Yin syndrome groupthan that inQi asthenia causing blood stasis syndrome group than that in Yang deficiency water stop group. As to serum levels of Hcy and D-D, they are higher inYang deficiency water stop groupthat those inboth deficiency of Qi and Yin syndrome group and Qi asthenia causing blood stasis syndrome group(P<0.05). Conclusion Patients with different TCM syn?drome types of CHF present different levels of serum NT-proBNP, Hcy, D-D level and LVEF. Changes of indicators in HFREF groups are more obvious than they did in HFNEF group.

Breathing gas carries important physiological information. Technology for detection of breathing gas has become a research focus because of the advantages of nondestructive sampling and convenient operation. Proton transfer reaction mass spectrometry (PTR-MS) plays an irreplaceable role because of the advantages of high sensitivity, fast response and good specificity. In this paper, the principle of PTR-MS is introduced first, followed by research progress of PTR-MS in the field of breathing gas detection. Factors influencing the test results are analyzed. Finally, future prospects of development for PTR-MS in the field of breathing gas detection are discussed.
Gases ; isolation & purification ; Mass Spectrometry ; methods ; Protons

Objective To observe the antimicrobial effect of a kind of Chinese medicine Qingre compound preparation on the common pathogenic bacteria of upper respiratory tract infection (URTI). Methods A total of 163 common pathogen?ic bacteria of URTI was selected in this study, including 74 non extended-spectrum β- lactamases (ESBLs)-producing Gram-negative bacteria (33 Escherichia coli, 24 Klebsiella pneumonia and 17 Pseudomonas aeruginosa), 10 ESBLs-produc?ing Gram-negative bacteria (6 Escherichia coli and 4 Klebsiella pneumoniae) and 79 Gram-positive bacteria [11 methicil?lin-resistant Staphylococcus aureus (MRSA), 46 methicillin-sensitive Staphylococcus aureus and 22 Streptococcus pneu?moniae]. Agar dilution method was adopted to perform the quantitative drug sensibility test. Agar plates that contained differ?ent concentrations of Qingre compound preparation were prepared. The bacterial suspension was planted on the plates. Then we observed the plates after incubation, and recorded the minimum inhibitory concentration (MIC). Results The antimicro?bial rates of Qingre compound preparation were 88, 176 and 22 g/L for MIC90 of Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa. The antimicrobial effects of Qingre compound preparation were coincident on the MIC 90 of ES?BLs-producing strains and non ESBLs-producing strains. The accumulated antibacterial rates of different concentrations of medicine to Pseudomonas aeruginosa were the highest. The MIC90 values of Qingre compound preparation were 11, 11 and 22 g/L for MSSA, MRSA and Streptococcus pneumoniae. The MIC90 of MRSA was coincident with MSSA, but MIC50 of MRSA was slightly higher than that of MSSA. The accumulated antibacterial rates of different concentrations of medi cine to MSSA and MRSA were all higher than those of Streptococcus pneumonia. The accumulated antibacterial rate of MSSA was similar with that of MRSA. Conclusion The Chinese medicine Qingre compound preparation could restrain common patho?genic bacteria of URTI except Klebsiella pneumoniae. The antibacterial effect of Qingre compound preparation is significant?ly better in Ggram-positive bacteria than that of Gram-negative bacteria.

【Objective】 To use Fab segments of autoantibodies to bind to autoantigens on red blood cells in order to block the binding of intact autoantibodies to the autoantigens. 【Methods】 The pure autoantibodies were obtained from the serum of patients by absorption and elution test, then Fab segments were obtained by hydrolyzing IgG autoantibodies at 37℃ overnight with papain enzyme. The Fab segments were used to bind the corresponding autoantigens specifically, thus blocking the binding of intact autoantibodies to autoantigens. 【Results】 The pure autoantibodies obtained through absorption and elution test were all hydrolyzed by papain to generate Fab fragments. When mixed with intact autoantibodies in their respective elution solutions, these Fab fragments were able to block the binding of intact autoantibodies to red blood cell autoantigens. Among the three samples, there was a mutual blocking effect between sample 1 and sample 2, while no mutual blocking effect was observed between sample 2 and sample 3. 【Conclusion】 Fab segment of autoantibody can eliminate the agglutination of intact autoantibodies and erythrocyte autoantigens, and can be applied to clinical practice to solve clinical problems.