Objective To discuss the influence of respiratory training and prompting effective discharging of sputum for chronic obstructive pulmonary disease (COPD) patients in acute aggravation period. Methods 50 patients were randomized into the intervention group and the control group with 25 cases in each group.The intervention group received respiratory training and prompting effective discharging of sputum while the control was only given routine treatment and nursing.The ratio of first second expiration volume to forced vital capacity, oxygen partial pressure (PaO2),carben dioxide partial pressure (PaCO2) ,blood oxygen saturation (SpO2)and the in-hospital days were compared between the two groups. Results The clinical effect in the intervention group was superior to that of the control group with shorter in-hospital days (P<0.01).Conclusion Better results could be obtained by application of respiratory training and prompting effective discharging of sputum for COPD patients in acute aggravation period.

ObjectiveTo explore the mental health level of family members of stroke patient and related factors.Methods34 stroke patients' family members were tested with the Symptom Checklist-90(SCL-90), and compared with norms; SCL-90 factor scores, which were higher than that of norms, were analyzed for related factors.ResultsScores of 4 factors in the SCL-90 (somatization, depression, anxiety and phobia) were higher than norms in the family members of stroke patients. Scores of somatization factor correlated with the education background; depression factor correlated with the family income variable; anxiety factor correlated with the cognitive impairment variable of patients. In the correlation analysis with patient's activities of daily living (ADL) scores, somatization factor negatively correlated with total score of ADL and hygiene, feeding, bowel management, locomotion, bathing scores; both depression factor scores and positive item numbers negatively correlated with feeding and bowel management scores; phobia anxiety factor scores with hygiene, feeding, bowel management, communication, locomotion, bathing and total scores.ConclusionThe mental health level of family members of stroke patient is lower, and it is related to family income reduction, patient's cognitive impairment, and especially with the patient\s ADL level.

OBJECTIVETo explore effects of Tongxinluo Capsule (TC) on platelet activating factor (PAF), vascular endothelial function, thrombolysis in myocardial infarction (TIMI) blood flow, and heart function in acute myocardial infarction (AMI) patients after delayed percutaneous coronary intervention (PCI).

METHODSTotally 80 AMI inpatients were recruited at Department of Cardiology, People's Hospital of Jiangxi Province, from Jan. 2008 to Sep.2013. Those in line with inclusion criteria were randomly assigned to TC treatment group and the conventional treatment group by random digit table, 40 in each group. Besides, another 40 healthy subjects from examinees at Outpatient Department were recruited as a healthy control group. PCI was performed after 1-week treatment. Then blood samples were collected, and then blood contents of CD62P, CD63, GP II b/III a, ET-1, NO, and plasma von Willebrand factor (vWF) levels were detected. Coronary TIMI blood flow and corrected TIMI frame count (CTFC) were determined during PCI. Meanwhile, noninvasive blood pressure (BP) and heart rate (HR) were recorded before and after PCI, and cardiac function measured. They were compared with the healty control group.

RESULTSCompared with the healthy control group, blood contents of CD62p, CD63, GP II b/IIIa receptor compound, vWF, and ET-1 significantly increased, but NO significantly decreased in AMI patients (all P < 0.05). After 1-week intervention of TC, blood contents of CD62p, CD63, GP II b/IIIa receptor compound, vWF, NO, and ET-1 significantly decreased (P < 0.05, P < 0.01). Compared with the conventional treatment group at the same time point, blood contents of CD62p, CD63, GP II b/IIIa receptor compound, vWF, and ET-1 decreased more significantly in the TC group (P < 0.05, P < 0.01), increased NO levels were also more obviously seen (P < 0.01). The aforesaid parameters changed more obviously at day 30, as compared with those changes at week 1 (P < 0.05, P < 0.01). The TIMI blood flow grade and CTFC were more obviously improved after PCI in the two treatment groups. Better TIMI blood flow was seen in the TC group. TIMI level 3 blood flow rate was higher in the TC group than in the conventional treatment group with statistical difference (P < 0.05). The left ventricular ejective factor (LVEF) after PCI was obviously elevated in the TC group and the conventional treatment group (P < 0.01), and the improvement was more obviously seen in the TC group (P < 0.05). There were 6 cases of recurrent angina, 3 cases of ventricular tachycardial (VT)/ventricular fibrillation (VF), 6 cases of heart failure (HF), 1 case of cardiac sudden death in the conventional treatment group, with the total incidence of cardiovascular events being 40% (16/40). There were 2 cases of recurrent angina, 2 cases of VT/VF, 2 cases of HF, no cardiac sudden death in the TC treatment group, with the total incidence of cardiovascular events being 15% (6/40). There was statistical difference in the recurrent rate of cardiovascular events between the two groups (χ² = 2.27, P < 0.05).

CONCLUSIONTC not only could prevent coronary embolism of AMI patients after delayed PCI, attenuate vascular endothelial injury, but also could improve TIMI blood flow, and strengthen cardiac systolic function.

Angioplasty, Balloon, Coronary ; Blood Pressure ; Drugs, Chinese Herbal ; therapeutic use ; Endothelium, Vascular ; drug effects ; Fibrinolytic Agents ; therapeutic use ; Heart ; drug effects ; Heart Rate ; Humans ; Myocardial Infarction ; drug therapy ; surgery ; Percutaneous Coronary Intervention ; Platelet Activating Factor ; metabolism ; Regional Blood Flow ; von Willebrand Factor ; metabolism

OBJECTIVE To report the investigation on validating clinical moist sterilizer by applying wireless thermo-loggers in accordance with the advanced Euro and British standards.METHODS The validation had been implemented with microbiological tests and thermometric tests to measure the temperature distribution of the chamber of sterilizer,the temperature and time relation inside the tested package of small and challenge loads,the pressure of the chamber and the temperature beside the drainage.RESULTS The measurements presented the relation between temperature and time measurements of the spots inside the chamber of the tested sterilization loads.CONCLUSIONS The measurement results indicate directly the operation condition and the temperature-time relation inside sterilization loads.These measurements are helpful for controlling sterilization quality.The results of microbiological tests are negative,which are consistent with that of thermomeric tests.

HIV-1 integrase (IN) is a key enzyme for the viral replication. The protein-protein interaction (PPI) between HIV-1 IN and a cellular cofactor lens epithelium-derived growth factor (LEDGF/p75) is a validated target for anti-HIV drug discovery. In order to build the platform for screening inhibitor against PPI between IN and LEDGF/p75, the vector containing the LEDGF/p75 protein cDNA was constructed and expressed in Escherichia coli and the function of the LEDGF/p75 protein was assayed. The LGDGF/p75 encoding gene optimized according to the preference codon usage of E. coli, was synthesized and cloned into the expression vector pGEX-4T-1 to form a recombined plasmid, then transformed into host cell E. coli BL21 (DE3). The recombined clones were identified and confirmed by BamH I/Sal I digestion and sequencing, the successfully recombined plasmid in the host cell was induced by IPTG and the condition of the expression was optimized. The expressed protein was purified by the Ni2+ affinity chromatography column and SDS-PAGE was used to analyze the molecular weight and specificity. In addition, ELISA assay was used to analyze the function of the recombinant protein. The recombinant LGDGF/p75 was soluble, and expressed highly and stably in E. coli. The protein was proved to enhance HIV-1 IN strand transfer activity in vitro by ELISA. It will be helpful to build the platform of screening inhibitors against PPI between IN and LEDGF/p75.
Cloning, Molecular ; Escherichia coli ; metabolism ; HIV Integrase ; metabolism ; HIV-1 ; physiology ; Humans ; Intercellular Signaling Peptides and Proteins ; biosynthesis ; Protein Binding ; Virus Replication

Objective To explore the therapeutic effects and the mechanisms of Faecalibacterium prausnitzii (Fp) on trinitro-benzene-sulfonic acid-induced colitis.Methods Sixty Sprague-Dawley rats were divided into healthy control group, colitis model control group, Fp pretreated group,Fp supernatant pretreated group,Fp treated group and Fp supernatant treated group.Disease activity index (DAI),histological injury of colonic tissue,the content of butyrate in feces,forkhead box protein 3 (Foxp3) regulatory T cells (Treg) in peripheral blood and spleen and the level of interlenkin (IL)-17 and IL-6 in serum were evaluated.All the data were statistical analyzed by single factor analysis of variance. Results Compared with colitis model control group, DAI significantly lowered and histological injury obviously improved in Fp pretreated group, Fp supernatant pretreated group,Fp treated group and Fp supernatant treated group.The effects of Fp pretreated group were better than those of Fp treated group and Fp supernatant pretreated group were better than Fp supernatant treated group.The concentration of butyrate in Fp pretreated group,Fp supernatant pretreated group,Fp treated group and Fp supernatant treated group was (3091.08 ±485.50) × 106 mol/L,(1714.64 ± 351.25) × 10(-8) mol/L,(2064.75 ± 295.04) × 10-6 mol/L and (1089.13±321.23) × 10-6 mol/L respectively,there was significant difference between Fp pretreated group and other groups (F=49.796,P＜0.01).The peripheral blood level of Foxp3+ Treg in Fp supernatant pretreated group was highest.The spleen level of Foxp3+ Treg in Fp pretreated group and Fp supernatant pretreated group were significantly higher than that of other groups.The serum level of IL-17 and IL-6 in Fp pretreated group,Fp supernatant pretreated group,Fp treated group and Fp supernatant treated group was significantly lower than that of colitis model group.Conclustons Fp plays a role in promoting the repair of intestinal inflammatory reaction in colitis model rats.The mechanism may be related with butyrate producing,the peripheral blood and spleen level of Foxp3+ Treg up-regulating,suppressing the secretion of proinflammatory cytokine IL-17 and IL-6.Rebuilding the balance of Treg/Th17 to reduce local intestinal inflammation.

Objective To investigate the protective effects and mechanism of Faecalibacterium prausnitzii (Fp) and its products in 2,4,6-trinitrobenzene sulfonic acid (TNBS) induced colitis rats.Methods A total of 40 Sprague-Dawley rats were divided into healthy control group,colitis model group,Fp supernatant group,Fp bacteria group and Bifidobacterium longum (B.longum) group.The rats of the later four groups were enemaed with TNBS to establish the model.At five days before and one day after modeling,the rats were gavaged with phosphate buffer saline (PBS),the supernatant of Fp,live Fp bacteria and live B.longum respectively.Rats were executed at 48 hour after modeling.The colon tissues were taken for pathology examination.The content of short-chain fatty acids (SCFA) in fecal was tested by gas chromatography.The plasma level of interleukin-10 (IL- 10),interleukin-12 ( IL-12),interleukin-17 (IL-17) and interleukin-23 (IL-23) were detected by enzyme-linked immunosorbnent assay (ELISA) and the expression of IL-17 in intestinal mucosal tissues was measured by immunohistochemistry.The data were analyzed by one way ANOVA.Results Compared with the healthy control group,the rats of colitis group suffered serious weight loss and their intestinal pathology score increased [(193.57±14) g vs (170.25±19.18) g,(1.00±0.99) vs (3.34±0.38),t=2.83 and 7.55,all P value＜0.05].The Fp supernatant group showed protective effects in terms of weight and intestinal pathology score [(187.00± 14.67) g,(2.50±0.44),t=2.1 and 2.9,all P＜0.05].Compared with healthy control group,the plasma and colon tissue IL-17 concentration of colitis model group increased (16.61 pg/ml±2.45 pg/ml vs 20.47 pg/ml± 1.45 pg/ml,0.83±0.98 vs 5.14±0.90) (all P＜0.05).Compared with the colitis model group,the plasma and colon tissue IL-17 concentration of Fp supernatant group decreased ( 17.54 pg/ml± 1.51 pg/ml and 2.86±0.69).Conclusion Fp can regulate immune response and suppress rat colonic inflammation,which may be related with the expression of IL-17.

BACKGROUND: Learning memory disorder is one of the major manifestations of aging. The model of aging induced by D-galactose is a commonly used animal model in recent years, and long-term D-galactose exposure may cause nerve cell morphological changes in animals.OBJETCIVE: To observe spatial learning memory behavior during Dgalactose-induced aging process in order to further explore in vivo evoked long-term potentiation in hippocampus dentate gyrus and synaptic morphological changes in hippocampal CA3 region.DESIGN: Randomized controlled observation.SETTING: Anatomical Teaching and Research Secti , Shanghai Second Medical University; Department of Physiology, Shanghai Traditional Chinese Medicine University.MATERIALS: The experiment was carried out at the Physiological Laboratory of Shanghai Traditional Chinese Medicine University between August 2000 and April 2001. Totally 22 male Wistar rats of 3-month birth age were included and randomized into normal group and D-galactose group with 11 rats in each group. D-galactose was produced by Shanghai No. 2 Chemical Reagent Factory, Morris water maze was home-made by the Institute of Geriatrics, Shanghai Traditional Chinese Medicine university.METHODS: Rats were subjected to hypodermic injection of 1 mL normal saline every day in normal group, or D-galactose of 800 mg/kg daily for 6consecutive weeks in D-galactose group. Rat spatial learning memory behavior was assessed by the latency of Morris water maze; hippocampal dentate gyrus community potentials evoked by monopulse stimulation on perforating fibers were recordedin vivo; meanwhile, the amplitude of monopulse evoked potentials was determined before and after high frequency stimulation, with the amplitude before high frequency stimulation taken as baseline. Transmission electromicroscope was applied in combination with imaging analysis to observe synaptic morphology and structure in rat hippocampal CA3 region. Water labyrinth latency was compared using the variance analysis of repetitive survey design, t-test was used to compare the differences of peak potential latency of community potentials at various time points after long-term potentiation. Moreover, inducing rate of longterm potentiation was compared by χ2-test, XY-540 type biological imaging processing system was used to analyze electromicroscopic pictures, and all available data were analyzed with t-test.MAN OUTCOME MEASURES: [1] Main outcomes: Changes of Morris water maze latency, as well as inducing rate of long-term potentiation and community potentials. [2] Secondary outcomes: Synaptic morphological and structural changes in hippocampal CA3 region.RESULTS: Totally 22 rats were enrolled in this study, with no one lost during water labyrinth test, but one rat in both normal group and D-galactose group died during electrophysiological experiment. Finally 3 rats were randomly selected from each group for electromicroscopic observation. [1]Comparison of the latency for Morris water maze: In contrast with that of normal group, latency for seeking submarine platform was obviously prolonged in D-galactose group [(14.77±10.10), (51.36±12.45) s, P ＜ 0.05].[2] Comparison of evoked potential in hippocampus dentate before high frequency stimulation: The two groups did not obviously differ in community potential amplitude and community potential latency [(1.05±0.47),(0.91±0.41) mV; (5.46±2.09), (5.38±2.26) ms; P ＞ 0.05]. [3] Inducing rate of long-term potentiation in hippocampal dentate gyrus: Compared to that of normal group, inducing rate in D-galactose group obviously reduced after high frequency stimulation (80%, 20%, χ2=7.20, P ＜ 0.01). [4] Comparison of community potential ratio at different time points after high frequency stimulation: Compared to that of normal group, it was notably reduced in D-galactose group at post-stimulation 20, 30, 60 minutes, respectively (1.104±0.196, 0.919±0.162; 1.354±0.212, 0.999±0.219; 1.236±0.174,0.875±0.311; P ＜ 0.05). [5] Comparison of synaptic struc tural parameters in hippocampal CA3 region: Compared to that of normal group, postsynaptic dense bodies became thickened in hippocampal CA3 region of D-galactose group [(40.60±18.26), (26.35±8.15) nm, P ＜ 0.05], the synapse gap increased [(17.69±6.28), (26.95±5.67) nm, P ＜ 0.05] while synaptic active zone was shortened [(265.13±76.50), (229.13±90.68) nm, P ＜ 0.05].CONCLUSION: Hypodermic injection of D-galactose does harm to rat spatial learning memory by reducing the long-term potentiation, inducing rate in rat hippocampal dentate gyrus, attenuating the increase of long-term potentiation-evoked potential amplitude, and even remarkably changing the synaptic ultrastructure in rat hippocampal CA3 region. It suggests that Dgalactose inhibits the long-term potentiation at hippocampal dentate gyrus and affects synaptic structure in hippocampal CA3 region, which is considered as the basis of spatial learning memory behavioral disorder.

OBJECTIVE: To investigate the pathological factors of syndrome pathomechanism through studying the correlation between syndromes of posthepatitic cirrhosis and biological parameters. METHODS: Clinical information of three hundred and fifty-five patients with posthepatitic cirrhosis was collected and the database was established. Parameters with statistical significance were analyzed with multi-factor regression analysis to investigate the main influencing factors of the syndromes of posthepatitic cirrhosis. RESULTS: Formulae of six syndromes, including syndrome of yin deficiency of liver and kidney, syndrome of damp heat, syndrome of stagnated heat smoldering, syndrome of yang deficiency of spleen and kidney, syndrome of stagnation of liver qi and spleen deficiency and syndrome of blood stasis due to qi deficiency, were established with stepwise regression analysis. CONCLUSIONS: One of the pathophysiological bases of syndrome of blood stasis due to qi deficiency in cirrhosis is synthetic dysfunction of hepatocytes. The pathophysiological basis of syndrome of damp heat is inflammatory injury, which is also syndrome of stagnated heat smoldering in cirrhosis patients. The relationship between syndrome of yin deficiency of liver and kidney and stasis and damp heat may be the pathophysiological basis of the posthepatitic cirrhosis..