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The present study was conducted to clarify the therapeutic effect of cornuside on experimental autoimmune encephalomyelitis (EAE) and its influence on T helper 17 (Th17) cell and regulatory T (Treg) cell infiltration into the central nervous system. Rats were randomly placed into four treatment groups: control, EAE, EAE+cornuside, and EAE+prednisolone. The neurological function scores of rats were assessed daily. On the second day after EAE rats began to show neurological deficit symptoms, the four groups were treated with normal saline, normal saline, cornuside (150 mg/kg), and prednisolone (5 mg/kg), respectively. The treatment was discontinued after two weeks, and the spinal cord was obtained for hematoxylin and eosin (H&E) and luxol fast blue staining, as well as retinoic acid receptor-related orphan receptor γ (RORγ) and forkhead box protein P3 (Foxp3) immunohistochemical staining. Blood was collected for Th17 and Treg cell flow cytometry testing, and the serum levels of interleukin (IL)-17A, IL-10, transforming growth factor-β (TGF-β), IL-6, IL-23, and IL-2 were measured via enzyme-linked immunosorbent assay (ELISA). Compared with rats in the EAE group, rats in the EAE+cornuside and EAE+prednisolone groups began to recover from neurological deficits earlier, and had a greater degree of improvement of symptoms. Focal inflammation, demyelination, and RORγ-positive cell infiltration were reduced by cornuside or prednisolone treatment, whereas the Foxp3-positive cell numbers were not significantly different. Meanwhile, the number of Th17 cells and the IL-17A, IL-6, and IL-23 levels were lower in the blood after cornuside or prednisolone treatment, whereas the number of Treg cells or the levels of IL-10, TGF-β, and IL-2 were not markedly different. Cornuside can alleviate symptoms of EAE neurological deficits through its anti-inflammatory and immunosuppressive effects, and Th17 cells may be one of its therapeutic targets.
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Objective:To clarify the infection and epidemic characteristics of the human metapneumovirus (HMPV) in Chinese patients with febrile respiratory syndrome (FRS), and to provide important baseline data for clinical diagnosis, treatment, prevention and control of HMPV-induced respiratory tract diseases in China.Methods:FRS cases from January 2009 to June 2021 in 9 provinces in China, including Beijing, Hebei, Jilin, Shandong, Shaanxi, Xinjiang, Anhui, Guangdong, Hunan were retrospectively analyzed for their respiratory samples, clinical and epidemic data.The respiratory samples were detected for HMPV by quantitative real-time PCR.Results:A total of 11 660 cases were tested for HMPV, involving 296 (2.54%) HMPV-positive cases.Among 296 HMPV-positive cases, 218 were single HMPV infection, and 78/296 (26.35%) were co-infected with one or more respiratory viruses.HMPV mainly affected children under 5 years of age (3.10%), and in this population, the proportion of pneumonia in HMPV co-infection cases was significantly higher than that of single HMPV infection.HMPV could be detected all year round, which was more popular in winter and spring, with the peak of HMPV epidemic in March.Conclusions:HMPV is one of the important pathogens causing acute respiratory infection in children, showing a clear seasonal epidemic.HMPV can be infected alone or in combination with other respiratory viruses, which may increase the risk of pneumonia in children.
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Objective:To discuss the application and effectiveness of the flipped classroom based on Wechat platform in the teaching of neurology.Methods:clinical students of grade 2014 of binjiang college of Zhejiang Chinese Medical University were selected as teaching subject. The students were divided into experimental group which contained a total of 74 students in class one and class three and the control group which contained a total of 38 students in class two. Peripheral neuropathy and neuromuscular-junction disease were selected as teaching contents. The experimental group adopted flipped classroom as the teaching mode and Wechat platform for pre-class preparation, after-school review and interactive communication. The control group was taught by traditional teaching mode. Before and after class, students in the two groups had a small-scale test and were surveyed by questionnaire, respectively. Students in the two groups took the same final exam which included case analysis when the course was over. The scores of the final exam and the results of the case analysis of each group were recorded and analyzed. All data were processed with statistical software SPSS 20.0, and t-test or chi-square test was used. Results:Students in the experimental group had significantly higher test scores in the after-class small-scale test than those in the control group ( P=0.038). Their final exam scores were higher than those in the control group ( P=0.046), and their scores of case analysis in the final exam were higher than those in the control group ( P=0.026). The results of pre-class questionnaire survey showed that the proportion of students who chose "good" in the experimental group was higher than that in the control group on the understanding of the learning content and the preparation ( P<0.05). In the after-class questionnaire survey, the proportion of students who chose "excellent" and "good" in the evaluation of learning interest in the experimental group was higher than those in the control group ( P<0.05), the proportion of students in the experimental chose "good" in evaluating their self-learning ability was higher than that in the control group ( P<0.05), the proportion of "excellent" on clinical thinking ability and teaching satisfaction was higher in the experimental group than that in the control group ( P<0.05), and the overall proportion of students who chose "excellent" and "good" in all items in the experimental group were higher than that in the control group ( P<0.05). In the experimental group, the overall proportion of students who selected "excellent" and "good" in on the evaluation of their learning interest was significantly increased in the after-class questionnaire survey compared with the pre-class questionnaire survey ( P<0.01). Conclusions:The application of flipped classroom based on Wechat platform is feasible and effective in the teaching of neurology. It can make up for the deficiency of traditional teaching methods. It is helpful to improve students' learning interest and self-learning ability, and is also helpful to exercise their clinical thinking ability. Thus this method deserves further popularization.
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OBJECTIVE@#To investigate the effect of curcumin on dopamine neurons in Parkinson's disease (PD) and its mechanism.@*METHODS@#SH-SY5Y human neuroblastoma cells were treated with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) to establish the PD cell model. The model cells were treated with curcumin and/or autophagy inhibitor 3-MA. After 48 h of drug treatment, the number of surviving dopamine neurons was detected by tyrosine hydroxylase immunofluorescence method. Western blotting was used to detect protein expression of α-Synuclein (α-Syn), transcription factor EB (TFEB) and autophagy-related proteins lysosome-associated membrane protein 2A (LAMP2A) and microtubule-associated protein 1 light chain 3-Ⅱ(LC3-Ⅱ); RT-PCR was used to detect mRNA expression of α-Syn.@*RESULTS@#Compared with MPTP model group, curcumin increased the number of surviving dopamine neurons(<0.01), decreased both protein expression and mRNA expression of α-Syn (all <0.01), and increased protein expression of TFEB, LAMP2A and LC3-Ⅱ (all <0.01). When curcumin and 3-MA were given concurrently, the number of surviving dopamine neurons, protein expression of TFEB, LAMP2A and LC3-Ⅱ increased (<0.05 or <0.01), and both protein expression and mRNA expression of α-Syn decreased (<0.05 or <0.01) compared with MPTP model group; but the number of surviving dopamine neurons and protein expression of LAMP2A and LC3-Ⅱ decreased compared with curcumin group (all <0.05).@*CONCLUSIONS@#Curcumin exerts protective effect on dopamine neurons in PD, which may be associated with enhancing autophagy and promoting the clearance of α-Syn.
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Animals , Humans , Mice , Cell Line , Curcumin , Pharmacology , Dopaminergic Neurons , Mice, Inbred C57BL , Parkinson Disease , alpha-Synuclein , MetabolismABSTRACT
Objective To investigate whether curcumin protects dopamine neurons in Parkinson's disease (PD) by activating autophagy and discuss its specific mechanism.Methods In vitro,SH-SY5Y human neuroblastoma cells were treated with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPP+) to induce PD cell models.In vivo,C57BL/6 male mice were performed intraperitoneal injection of 30 mg/kg 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) once daily for 7 d continuously to establish PD models.SH-SY5Y human neuroblastoma cells and C57BL/6 male mice were,respectively,divided into normal control group,model group,curcumin group,curcumin and 3-methyladenine (3-MA) group,and 3-MA group.Curcumin was used as intervention treatment,and 3-MA,an autophagy inhibitor,was used individually or concurrently with curcumin as intervention controls:curcumin (40 μmol/L),curcumin (40 μmol/L)+3-MA (4 mmol/L),and 3-MA (4 mmol/L) were added into the cells of curcumin group,curcumin and 3-MA group,and 3-MA group at the time of MPP+ addition;curcumin (80 mg/kg),curcumin (80 mg/kg)+3-MA (2 mg/kg),and 3-MA (2 mg/kg) were added into the mice of curcumin group,curcumin and 3-MA group,and 3-MA group at the time of MPTP injection once daily.In the normal control group,sterile saline was injected into the abdomen simultaneously (30 rmL/kg).In cell groups,after 48 h of drug treatment,the number of surviving dopamine neurons was detected by tyrosine hydroxylase (TH) immunofluorescence;Western blotting was used to detect protein expressions of α-synuclein (α-Syn),and autophagy related proteins lysosome-associated membrane protein 2A (LAMP2A) and microtubule-associated protein 1 light chain 3 (LC3);transcription factor EB (TFEB) levels in the cytoplasm and nucleus were detected separately by Western blotting;reverse transcription (RT)-PCR was used to detect the α-Syn mRNA expression.In mice groups,14 d after the last injection,mice were sacrificed and sections ofmidbrain nigra were gained for detection of TH level by immunohistochemistry,expressions of α-Syn and LC3 were detected by Western blotting.Results (1) As compared with model group,curcumin group had significantly larger number of surviving dopamine neurons both in vitro and in vivo,significantly decreased α-Syn protein and mRNA expressions in vitro,and significantly decreased α-Syn protein expression in vivo (P<0.05);curcumin group had statistically increased LAMP2A and LC3-Ⅱ protein expressions in vitro and LC3-Ⅱ protein expression in vivo as compared with model group (P<0.05).(2) As compared with curcumin group,curcumin and 3-MA group had statistically smaller number of surviving dopamine neurons in vitro and in vivo,and statistically increased α-Syn protein expression in vitro (P<0.05).(3) In vitro,as compared with model group,curcumin group had significantly increased TFEB protein expression in nucleus (P<0.05),and curcumin and 3-MA group had statistically increased TFEB protein expression in cytoplasm and statistically decreased TFEB protein expression in nucleus (P<0.05).Conclusion Curcumin has protective effect on dopamine neurons of PD;one of the main mechanisms is that curcumin can activate the autophagy function and promote the clearance of α-Syn;increasing the TFEB expression,promoting the transfer of TFEB to nucleus to perform the transcription function,and then promoting the synthesis of autolysosome may be the main ways to activate the autophagy function.
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Objective To investigate the autophagy level of Ana-1 cells after ingesting melanized Penicillium marneffei (PM),and to explore the feasibility of rapamycin in killing the bacteria by inducing macrophages autophagy.Methods Melanized PM was cultivated and isolated from the medium containing dopamine.The expression of microtubule-associated protein 1 light chain 3 Ⅱ (LC3 Ⅱ) in Ana-1 cells stimulated by conventional or melanized PM was detected by western blot.The expression levels of LC3 Ⅱ protein in Ana-1 cells treated with rapamycin and incubated with melanized PM was detected.Then,the localization of LC3 Ⅱ in Ana-1 cells which contained melanized PM was observed by immunofluorescence staining.Finally,the direct sterilization effect of rapamycin on melanized PM were detected,and the sterilization effect of Ana-1 cells treated with or without rapamycin on melanized PM was measured.Results No significant change was found in the LC3 Ⅱ level of Ana-1 cells after ingesting melanized PM (P>0.05),while LC3 Ⅱ level in Ana-1 cells treated with rapamycin which contained melanized PM was significantly increased (P=0.009).The colocalization of LC3 Ⅱ with melanized PM in cytoplasm of Ana-1 cells was observed.For Ana-1 cells treated with rapamycin,3 h and 6 h after incubated with melanized PM,the survival rates of melanized PM both were significantly reduced (P=0.026,0.014).No significant sterilization effect of Ana-1 cells or rapamycin was observed under the same conditions.Conclusion Melanized PM can suppress the activation of macrophage autophagy,and rapamycin can improve sterilization effect of Ana-1 cells by inducing the activation of autophagy.
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Objective To explore the effect of exercise on the expression of the LINGO-1 gene after intra cerebral hemorrhage (ICH).Methods Seventy-two Sprague-Dawley rats were randomly divided into a sham operation group,a control group and an exercise training group,each of 24.The three groups were further divided into 1 d,3 d,7 d and 14 d groups.ICH was induced using intra-parenchymal injection of autologous blood.The exercise training group was then forced to exercise on a treadmill.Any recovery of neurological functional was evaluated using Longa scoring,and the expression of LINGO-1 mRNA and protein were detected using the reverse transcription-polymerase chain reaction and western blotting.Results The sham operation group displayed no obvious neurological deficiency,with little expression of LINGO-1 mRNA or protein at any time point.The control group's average Longa score reached a maximum of 3 seven days after the operation,decreasing to 2 after another 7 days.The average expression of LINGO-1 mRNA and protein in that group peaked at 1.335±0.393 three days after the ICH,then decreased to 0.429±0.035 on the 7th day and 0.371±0.038 on the 14th day.In the exercise training group the average Longa score on the 7th day was 2,the average LINGO-1 mRNA level was 0.257±0.042 and the average protein level was 1.142±0.287,all significantly lower than in the control group.Moreover,in the exercise group there was a significant positive correlation between LINGO-1 protein expression and the Longa scores.Conclusion Exercise can decrease the expression of LINGO-1 mRNA and protein and promote the recovery of neural function after ICH.
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Objective To explore the effect of exercise on the expression of the LINGO-1 gene after intra cerebral hemorrhage (ICH).Methods Seventy-two Sprague-Dawley rats were randomly divided into a sham operation group,a control group and an exercise training group,each of 24.The three groups were further divided into 1 d,3 d,7 d and 14 d groups.ICH was induced using intra-parenchymal injection of autologous blood.The exercise training group was then forced to exercise on a treadmill.Any recovery of neurological functional was evaluated using Longa scoring,and the expression of LINGO-1 mRNA and protein were detected using the reverse transcription-polymerase chain reaction and western blotting.Results The sham operation group displayed no obvious neurological deficiency,with little expression of LINGO-1 mRNA or protein at any time point.The control group's average Longa score reached a maximum of 3 seven days after the operation,decreasing to 2 after another 7 days.The average expression of LINGO-1 mRNA and protein in that group peaked at 1.335±0.393 three days after the ICH,then decreased to 0.429±0.035 on the 7th day and 0.371±0.038 on the 14th day.In the exercise training group the average Longa score on the 7th day was 2,the average LINGO-1 mRNA level was 0.257±0.042 and the average protein level was 1.142±0.287,all significantly lower than in the control group.Moreover,in the exercise group there was a significant positive correlation between LINGO-1 protein expression and the Longa scores.Conclusion Exercise can decrease the expression of LINGO-1 mRNA and protein and promote the recovery of neural function after ICH.
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Objective To investigate the effects of rapamycin which is an autophagy inducer and 3-adenine (3-MA) which is an autophagy inhibitor on motor behavior and autophagy related protein LC3 in C57BL/6 mice of Parkinson's disease(PD).Methods 40 C57BL/6 male mice were randomly divided into control group and experimental groups which consist of MPTP model group,rapamycin group and 3-MA group,with 10 in each group.Mice in experimental groups received intraperitoneal injection with MPTP to establish PD models,and mice in control group received intraperitoneal injection with the same amount of saline solution for 1 week.Mice in rapamycin group received intraperitoneal injection with rapamycin and mice in 3-MA group received intraperitoneal injection with 3-MA at the same time when MPTP was injected.Animal behavior detections were carried out on the 1 th,7th and 14th day after the last injection.After the last injection,mice were sacrificed and sections of midbrain nigra were gained for the detection of expression of autophagy specificity protein LC3 by Western Blot.Results Compared with MPTP model group,rapamycin could improve the general condition and behavioral manifestation of mice in pole test((14.89± 1.14) s vs (16.24±1.39) s,P<0.05;(15.18±1.36) s vs(17.93±1.11s),P<0.01),traction test((1.7±0.5) vs (1.2±0.4),P< 0.05;(1.5±0.5)vs (1.1±0.3),P<0.05) and open field test which contained total activity distance((5 875.3 ± 1148.9) cm vs (5 061.5±773.1) cm,P<0.05;(5 753.2± 1 106.7) cm vs (4 669.3±969.1) cm,P<0.01) and average speed((19.29±2.35) cm/s vs (16.47±3.01) cm/s,P<0.05;(18.71±2.71)cm/s vs (15.80±2.50) cm/s,P<0.01),while 3-MA aggravated behavioral deficits of mice in pole test(19.92± 1.61s vs 17.93± 1.11 s,P<0.05),and both total activity distance((3 879.7±575.0) cm vs (4 669.3±969.1) cm,P<0.05) and average speed((13.34± 1.87) cm/s vs (15.80±2.50) cm/s,P<0.05) in open field test were decreased.The results of Western Blot confirmed that rapamycin could increase the expression of LC3-Ⅱ,however 3-MA could re duce the expression of LC3-Ⅱ.Conclusion This study confirmed that rapamycin could alleviate behavioral symptoms of PD model mice and increase the level of LC3 in midbrain nigra,while 3-MA could exacerbate behavioral symptoms in PD model mice and decrease the level of LC3 in midbrain nigra.Thus it can be speculated that drugs which can regulate autophagy may be potential treatment protocols for PD.
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Objective To explore the cognition impairment of Parkinson's disease (PD) subtypes and the risk factors for cognitive dysfunction.Methods Totally56 patients with PD and 30 control subjects were selected.All patients were assessed by Mini-Mental State Examination (MMSE),the Montreal cognitive assessment scale (MoCA),digital span test scale (DS),block design test scale (BD).The cognition impairment status of PD subtype was compared between the two groups.Risk factors for cognitive impairment in Parkinson's disease were analyzed by the multiple regression analysis.Results The scores (or accuracy) of visuospatial / executive function,memory,repeat,attention,animal naming,understanding,calculation,orientation in PD patients and control group were (29.84±13.78) and (44.63±10.95),(17.64±3.00) and (21.93±2.12),(1.64±0.90) and (2.40±0.62),64.29% and 86.67%,(2.25±0.77) and (2.70±0.47),(2.66± 0.67) and (2.93±0.25),(3.98±1.17) and (4.93±0.25),(9.59±0.68) and (9.93±0.25) respectively,and there were statistically significant differences in above indictors between two groups (t=-5.080,-7.707,-4.571,-3.374,-2.710,-5.844,-3.367,respectively,x2 =4.86,all P<0.05).Pearson correlation analysis showed that the cognitive function had a positive correlation with education status,had negative correlations with duration of disease,Unified Parkinson's Disease Rating Scale (UPDRS)-Ⅲ,Hoehn and Yahr (H-Y) staging,Hamilton Anxiety Scale (HAMA),Hamilton Rating Scale for Depression (HRSD) (MMSE:r=0.488,-0.682,-0.478,-0.465,-0.611,-0.538,respectively,all P<0.05,MoCA:r=0.553,-0.583,-0.396,-0.384,0.499,-0.444,respectively,all P<0.05),and had no correlation with gender,age,age of onset.Taking the duration of disease,education status,UPDRS-Ⅲ,H-Y grade,HAMA,HRSD as the independent variable,MMSE,MoCA as the dependent variable,multiple linear regression analysis showed that only the duration of disease and education status had effects on cognitive dysfunction in PD (MMSE:β=-0.042,0.196,both P=0.000,MoCA:β=-0.052,0.367,both P<0.05).Conclusions The key points of cognition impairment in PD patients are the impairments in visuospatial/ executive function,memory,repeat,attention,animal naming,understanding,calculation and orientation.The duration of disease and low level of education are the risk factors for cognitive dysfunction in patients with Parkinson's disease.
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Objective To explore the clinical applications of the PCT and hs-CRP in inflammatory diseases.Methods The sera of 79 infectious patients were randomly collected.54 samples were bacterial infectious patients,25 samples were nonbacterial infectious patients.The serum levels of PCT and hsCRP in 79 infectious cases were detected by immune fluorescence and Immunoturbidimetry respectively.Results The positive rate of PCT in bacterial infectious patients were much higher than that in nonbacterial infectious patients (x2 =48.337,P < 0.01),and the sensitivity was 92.5%,the specificity was 88.0% ;The positive rate of hs-CRP in bacterial infectious patients were much higher than that in nonbacterial infectious patients (x2 =22.347,P < 0.01),and the specificity was 88.9%,the specificity was 56.0%.The positive predictive value (88.9%) and negative predictive value (70.0%) of hs-CRP were lower than those of PCT (positive predictive values of 94.3% and negative predictive value of 84.6%).Conclusion Theserum levels of PCT in inflammatory diseases were significantly increased with an high sensitivity and high specificity.Thus,it may be used as a new marker of inflammatory,which can be helpful in the early evaluation of infectious disease and the observation of curative efficacy.
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Objective To study the effect of polysaccharide of Cipangopaludina chinensis on gray human cervix cancer cells(Hela cells) in vitro. Methods Polysaccharide of Cipangopaludina chinensis gray was extracted by water extraction. MTT assay and microscope were used to observe its effect on the growth inhibition of Hela cells at different concentrations of the polysaccharide. Results Polysaccharide of Cipangopaludina chinensis could more significantly inhibit the growth of Hela cells. Conclusion Polysaccharide of Cipangopaludina chinensis could inhibit human cervix cancer cells in vitro
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Objective To explore the influence of bacteria lipopolysaccharide on the cytokine production of flour mite allergic rhinitis patients. Methods 8 cases with perennial allergic rhinitis were selected. Then the heparin anticoagulation venous blood was taken from the same patient and was added to fetal calf serum,with ultimate volume 1 ml. The two experimental groups were added 10μg LPS and 1 μg LPS respectively, forming the high LPS dose group and low LPS dose group,while the control group was added nothing. Results The contents of IL-4、IL-5、IL-10、IL-12、IFN-γwere tested by enzyme-linked immunosorbent assay. The findings were that there was significant difference in the productive contents of IL-4、IL-5、IL-10、IL-12 and no significant difference in that of IFN-γ between the high LPS dose group and the low LPS dose group. When compared in two groups,significant difference was found in the productive contents of IL-4 ,IL-10 and IL-12 between the two experimental groups and between the high LPS dose group and the control group, while no obvious difference existed between the low LPS group and control group. However, significant difference was altogether found in the productive content of IL-5 when compared one with another among the three groups,and the result was that low dose of LPS obviously promoted the production of cytokine while high dose of LPS restrained the production of cytokine; no significant difference was found in the production of IFN-γ in all comparisons between the three groups. Conclusion This research, through the experiments in vitro, proved that LPS could effectively adjust the cytokine production of perennial flour mite allergic rhinitis patients and the balance of Th1/Th2 ,whose effect depends on the dose of LPS. This research suggested that the practical future in which special cytokine target treatment will be adopted on perennial flour mite allergic rhinitis patients.
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Objective To investigate the effect of livzon weisanlian(bismuth agent 0.22g,bid+tinidazole,0.5g,bid+clarithromycin 0.25g,bid) for 7 days for eradication of H.pylori and infection of patients suffering from chronic gastritis and peptic ulcer in Huannai area.Methods Four pieces of gastric mucosa were taken out by gastroscopy,two pieces of them from gastric antrum 3~5cm near pylori and the others from gastric body.All of them were detected for H.pylori and biopsy and smear.If both the former and the one of the later are all positive the patient was diagnosed with H.pylori and treated with livzon weisanlian.Results The positive of CSG is 81.6%,CAG is 63%,GU is 90.8% and DU is 93.3%.Conclusion The positive rate of patients suffering from chronic gastritis and peptic ulcer in Huainan area is high.The eradicative rate with livzon weisanlian is also high and it shows that livzon weisanlian is feasible to treat chronic gastritis and peptic ulcer.
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Objective To explore the relationship between the concentrations of dust mite allergen and lipopolysaccharide (LPS) in the working place and home for the workers. Methods 30 workers were selected as the experimental group in June, 2005, divided into A and B groups, 15 workers of flour processing in A and 15 workers of leather processing in B respectively, at the same season, 20 teachers from a college were selected as the control group (C group). 360 dust specimen were collected, the concentrations of allergen Der p1, Der f1 were determined by ELISA and the LPS concentration were determined by a kinetic Limulus assay. Results Concentration of allergen Der p1 and Der f1 (median:335.1 and 118.8, 350.0 and 174.1, 31.1and 3.4, 81.5 and 9.6 ?g/g in different sites respectively) in A group was the highest, LPS in B group was the highest (median: 234, 268, 104, 54 EU/mg in different sites respectively). The concentration of allergen in the suspending dust was correlated with those in mattress and floor dust (rs=0.661, P
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Proteins in coagulative and fibrinolytic systems were measured in 50 type 2 diabetic patients and 50 normal controls. Proteins related with fibrinolytic system in the diabetic patients were significantly higher than those in normal controls. The concentration of soluble thrombomodulin (sTM) was negatively correlated with the activity of protein C and positively correlated with plasmin-? 2 -antiplasmin complex in type 2 diabetic patients, suggesting that the increase of sTM is associated with hypercoagulability and enhanced fibrinolysis.