Objective:To discuss phytopharmacological potential and anti-asthmatic activity of Ficus religiosa(F.religiosa)(L.).Methods:Fresh leaves of F.religiosa were obtained from Vastrapur Lake,Ahmedabad,and dried to obtain p...Objective:To discuss phytopharmacological potential and anti-asthmatic activity of Ficus religiosa(F.religiosa)(L.).Methods:Fresh leaves of F.religiosa were obtained from Vastrapur Lake,Ahmedabad,and dried to obtain powder.Histamine and acetylcholine were used to guinea pigs to establish bronchospasm model.In in vivo study,the aqueous extract of F.religiosa leaves (AEFR) at doses of 150 and 300 mg/ kg was administrated to guinea pigs,and the broncho-protective activity of AEFR was compared with aminophylline at 25 mg/kg.While in in vitro study,and 10 g/mL,20 g/mL,30 g/mL of AEFRL was administrated to guinea pigs,respectively, and mast cell stabilizing activity of AEFR was compared with ketotifen at 10 g/mL.Results: In the in-vivo model,pre-treatment with aminophylline(25 mg/kg,ip.) could significantly delay the onset of histamine induced pre-convulsive dyspnea,compared with vehicle control. Administration of AEFRL(150 and 300 mg/kg,ip.) also produced significant effect on latency to develop histamine & acetylcholine induced pre-convulsive dyspnea.In the mast cell stabilizing model,AEFRL at 10,20 and 30μg/mL could significantly increase the number of intact cells. Conclusions:It can be concluded that AEFRL is effective on histamine & acetylcholine induced bronchospasm in guinea pigs.In addition,AEFRL can potentiate the number of intact cells in the mast cell stabilizing model._____________________________________________________展开更多
Objective: To study the phytochemistry, anti-asthmatic and antioxidant activities of the aqueous leaf extract of Anchomanes difformis(Blume) Engl.(A. difformis) and to verify claims of use in folk medicine.Methods: Fo...Objective: To study the phytochemistry, anti-asthmatic and antioxidant activities of the aqueous leaf extract of Anchomanes difformis(Blume) Engl.(A. difformis) and to verify claims of use in folk medicine.Methods: For anti-asthmatic activity, male and female guinea pigs with average body weight of(451.4 ± 118.1) g were divided into six groups of six animals each. Group 1served as control(distilled water); Group 2 was administered with salbutamol(reference drug) only; Group 3 served as ovalbumin sensitized group, Group 4, 5 and 6 were treated with A. difformis extract at doses of 100, 200 and 400 mg/kg, respectively. Described methods were used to test fluid viscosity, fluid volume and quantitative phytochemistry analysis. Absorbance was read using a UV–Vis spectrophotometer and results computed in percentage. Total antioxidant assays [2, 2-diphenyl-1-picrylhydrazyl(DPPH) and lipid peroxidation assay], were carried out using reported procedures.Results: The anti-asthmatic evaluation showed that protection from asthma of the animals in Group 6(400 mg/kg, 32.7%) were similar to that in Group 2(salbutamol, 33.0%).Excised trachea was free of mucus secretion in Group 5(200 mg/kg) as was observed in the control group. Fluid volume increase in Groups 3 and 6 indicated mucus secretion.DPPH radical scavenging activity of extract was effective as ascorbic acid which served as standard at 20 mg/m L. But, the extract elicited low lipid peroxidation activity compared with the reference(tocopherol) at concentrations tested.Conclusions: A. difformis aqueous leaf extract is safe and possesses positive antiasthmatic and antioxidant activities as claimed by traditional herbal practitioners in Delta State.展开更多
Objective:To study the usage of anti-asthmatic dugs and enumerate the patients’ noncompliance. Methods:The study was conducted from 5th Feb,2006 to 5th Mar,2006.The samples were from the general medicine ward.All pat...Objective:To study the usage of anti-asthmatic dugs and enumerate the patients’ noncompliance. Methods:The study was conducted from 5th Feb,2006 to 5th Mar,2006.The samples were from the general medicine ward.All patients with respiratory tract infection who received anti-asthmatic drugs were included in the study.Data were collected from clinical notes and structured patient’s data,and patient interview utilizing a piloted questionnaire data collection form.The questionnaire included patient demographics,anti-asthmatics prescribed, dose,frequency and previous treatment if any and its duration,concomitant medications etc. Results:26.31%of patients were 61-70 years old.Among 57 patients,91.23%of patients received multi-therapy,8.77%of patients received mono-therapy,59.65%of patients took over the counter(OTC) drugs and 57.89%of patients were non compliant.Anti-asthmatic drugs were prescribed to asthmatic patients as oral,inhalation and others(injections),and more than one route were used for administration of drugs.Conclusion:The anti-asthmatics are used to treat breathing difficulties such as allergy.Poor compliance to treatment is common among the patients,which makes it difficult to manage asthma and increases both morbidity and mortality.It is suggested that interventions have to be done by providing counseling and improving the current prescribing trend for better and rational utilization.展开更多
Objective: To investigate the expression of CD40 and CD40 ligand (CD4OL) on the surface of peripheral blood mononuclear cells(PBMCs) in asthmatic rats and the effect of anti-CD40L McAb on cytokines of PBMCs. Meth...Objective: To investigate the expression of CD40 and CD40 ligand (CD4OL) on the surface of peripheral blood mononuclear cells(PBMCs) in asthmatic rats and the effect of anti-CD40L McAb on cytokines of PBMCs. Methods: Flow cytometry and RT-PCR were used to detect the expression of CD40 and CD40L of PBMCs in asthmatic rats. After the PBMCs was treated with anti-CD40L McAb, ELISA was used to detect the IL-4 and IFN-γ levels of culture supernatants. Results: Compared with the normal control group, the expression of CD40 and CD40L of PBMCs in asthmatic rats increased (P 〈 0.05). Compared with the untreated group, the level of IL-γ and the ratio of IL-4/IFN-γ decreased after the PBMCs was treated with anti-CD40L McAb(P 〈 0.05). Conclusion: The expression of CD40 and CD40L on the surface of PBMCs in asthmatic rats was up-regulated. Anti-CD40L McAb can rectify the imbalance of Th1 and Th2 cytokines.展开更多
利用Arnol'd的Legendrian理论,对三维Anti de Sitter空间中Lorentzian曲面进行了研究.引入光维高度函数概念研究了三维Anti de Sitter空间Lorentzian曲面的S1t×S1s-值、光锥Gauss映射的奇点,进行了奇点分类,揭示了类光Causs-kr...利用Arnol'd的Legendrian理论,对三维Anti de Sitter空间中Lorentzian曲面进行了研究.引入光维高度函数概念研究了三维Anti de Sitter空间Lorentzian曲面的S1t×S1s-值、光锥Gauss映射的奇点,进行了奇点分类,揭示了类光Causs-kronecker曲率之间的关系;并研究了Lorentzian曲面的一些基本几何性质.展开更多
OBJECTIVE: Anti-asthma herbal medicine intervention (ASHMITM), a combination of three tradi- tional Chinese medicinal herbs developed in our laboratory, has demonstrated efficacy in both mouse models of allergic as...OBJECTIVE: Anti-asthma herbal medicine intervention (ASHMITM), a combination of three tradi- tional Chinese medicinal herbs developed in our laboratory, has demonstrated efficacy in both mouse models of allergic asthma, and a double-blind placebo-controlled clinical trial in patients with asthma. This study was designed to determine if the anti-inflammatory effects of individual herbal constituents of ASHMITM exhibited synergy. METHODS: Effects of ASHMI and its components aqueous extracts of Lingzhi (Ganoderma lucidum), Kushen (Sophora flavescens) and Gancao (Glycyrrhiza uralensis), on Th2 cytokine secretion by murine memory Th2 cells (D10.G4.1) and eotaxin-1 secretion by human lung fibroblast (HLF-1) cells were determined by measuring levels in culture supernatants by enzyme- linked immunosorbent assay. Potential synergistic effects were determined by computing interaction indices from concentration-effect curve parameters. RESULTS: Individual Lingzhi, Kushen and Gancao extracts and ASHMI (the combination of individual extracts) inhibited production of interleukin (IL)-4 and IL-5 by murine memory Th2 cells and eotaxin-1 production by HLF-1 cells. The mean 25%-inhibitory-concentration (IC2s) values (mg/mL) forASHMI, Lingzhi, Kushen and Gancao for IL-4 production were 30.9, 79.4, 123, and 64.6, respectively; for IL-5 production were 30.2, 263, 123.2 and 100, respectively; for eotaxin-1 were 13.2, 16.2, 30.2, and 25.1, respectively. The IC50values (mg/mL) for ASHMI, Lingzhi, Kushen and Gancao for IL-4 production were 158.5, 239.9, 446.7, and 281.8, respectively; for eotaxin-1 were 38.1, 33.1, 100, and 158.5, respectively. The interaction indices of ASHMI constituents at IC25 were 0.35 for IL-4, 0.21 for IL-5 and 0.59 for eotaxin-l. The interaction indices at IC^0 values were 0.50 for IL-4 and 0.62 for eotaxin-1 inhibition. Inhibition of IL-5 did not reach IC^0 values. All interaction indices were below 1 which indicated synergy. CONCLUSION: By comparing the interaction index values, we find that constituents in ASHMITM synergistically inhibited eotaxin-1 production as well as Th2 cytokine production.展开更多
It needs the foundation of system and the guarantee of organizational system for anti-corruption,but it is more necessary to build and form an effective anti-corruption mechanism,so that the anti-corruption can be rea...It needs the foundation of system and the guarantee of organizational system for anti-corruption,but it is more necessary to build and form an effective anti-corruption mechanism,so that the anti-corruption can be really put into practice. Anti-corruption mechanism refers to a organic operation system of the interaction,interconnection and constraint between the constituent elements( parts) and elements of national anti-corruption,and as a system,anti-corruption mechanism should have the characteristics of system aticness,comprehensiveness,transparency,legalization,public participation,scientific dynam ic,and internationalism. The construction of deepening anti-corruption mechanism is the need for reconstructing the ruling legitimacy of the party and the governm ent. Adhering to the principle of treating both root causes and symptoms is necessary in the construction of anti-corruption m echanism,com bating and punishing corruption is an important part of anti-corruption,and the prevention and control of corruption is the basic project of anti-corruption. Therefore,the construction of prevention and control mechanism in the anti-corruption mechanism has a more far-reaching significance.展开更多
A research on the process of cotton fabric flame-re-tarding,anti-bacterial finishing and one-bath finish-ing of anti-bacterial and flame-retarding is discussed.The flame retardant agent was phosphorous-contained,and t...A research on the process of cotton fabric flame-re-tarding,anti-bacterial finishing and one-bath finish-ing of anti-bacterial and flame-retarding is discussed.The flame retardant agent was phosphorous-contained,and the bacteriostatic finishing agent named SFR-1 wassynthesized.The flame retardancy of the fabric finishedcan meet the DOC FF3-71 Children Sleepwear Stan-dard.Its bacterial inhibiting capacity can meet and ex-ceed the requirements of similar products展开更多
Friction spun core yarn has two components: filament core and staple fiber sheath. Under axial rubbing action, the failure mode of the core yarn is the stripping of the sheath from the core. This paper introduces a me...Friction spun core yarn has two components: filament core and staple fiber sheath. Under axial rubbing action, the failure mode of the core yarn is the stripping of the sheath from the core. This paper introduces a method to test the anti - stripping property of the core yarn. With a modified Universal Testing Machine, the stripping resistance of friction spun core yarn can be continuously measured. Some factors Influencing the measurements are discussed in detail. The testing results are compared with those from a Y731 Yarn Abrasion Tester and fur - ther confirmed by weaving practice.展开更多
Objective: Mahuang-Shigao herb-pair is a famous formula composed of Ephedra and Gypsum. The herb-pair is frequently used for treating cold symptoms and bronchial asthma in the clinical practice of Chinese medicine ...Objective: Mahuang-Shigao herb-pair is a famous formula composed of Ephedra and Gypsum. The herb-pair is frequently used for treating cold symptoms and bronchial asthma in the clinical practice of Chinese medicine (CM). In the present study, we evaluated evidence for the benefit of combined use of Ephedra and Gypsum by analyzing the antipyretic and anti-asthmatic activities of Ephedra-Gypsum. Methods: The antipyretic effects of Ephedra-Gypsum were evaluated in yeast-induced hyperthermia test. Thirty male Wistar rats were randomly divided into 5 groups, including control group, standard aspirin group, and 3 Ephedra- Gypsum groups of different doses (6, 12, 24 g/kg). Ephedra-Gypsum extract and asprin were administered orally 6 h after the injection of yeast solution and body temperature was measured every 1 h for 8 h. The anti- asthmatic effects of Ephedra-Gypsum were evaluated using an ovalbumin (OVA)-induced asthmatic rat model. Thirty-six male SD rats were randomly divided into 6 groups. Rats were alternately sensitized and OVA+Al(OH)3 challenged by exposure to mists of ovalbumin. Ephedra-Gypsum extracts (6, 12, 24 g/kg) or dexamethasone were administered 45 min prior to the allergen challenge for 8 days. Latent period and the weight of wet to dry ratio of lung were determined. In addition, the eosinophils in blood and white blood cell (WBC) were counted by an YZ-Hemavet Analyzer. Results: The Ephedra-Gypsum extracts at test dose (6, 12, 24 g/kg) significantly and dose-dependently attenuated yeast-induced fever in rats. The Ephedra-Gypsum extracts also prolonged the latent period, reduced OVA-induced increases in eosinophils and WBC, and decreased the wet and dry weight ratio of the lungs in the anti-asthmatic test. Conclusions: These findings indicate that the Ephedra-Gypsum extract has antipyretic and anti-asthmatic properties. Hence, the results support additional scientific evidence in prescriptions.展开更多
Since ancient times, traditional medicines have been in the usage for the treatment of Diabetes mellitus. An edible fruit from traditional medicinal plant Capparis zeylanica (CZ) was studied for its anti diabetic, ins...Since ancient times, traditional medicines have been in the usage for the treatment of Diabetes mellitus. An edible fruit from traditional medicinal plant Capparis zeylanica (CZ) was studied for its anti diabetic, insulin secretagogue activities and mechanisms involved in it. In Streptozotocin induced diabetes rats, oral administration of Capparis zeylanica methanolic extract (CZME) (200 mg/kg body weight) for 28 days showed a significant reduction in blood glucose levels by 35.53% and enhanced circulating insulin levels by 81.82% than the diabetic control rats. The insulin secretagogue activity mechanisms of the extract were evaluated by using mouse insulinoma beta cell line (MIN6-β). The extract stimulated insulin release in dependent manner of glucose concentration (3 - 16.7 mM) and extract dose (5 - 500 μg/mL). The insulin releasing effect of the extract was significantly enhanced by 3-isobutyl-1-methyl xanthine, glibenclamide, elevated extracellular calcium and K+ depolarized media. This insulin release was significantly reduced in calcium blocking conditions (by nifedipine and EGTA), in the presence of potassium channel opener (diazoxide). Hence, anti diabetic activity of CZME might be a result of its stimulatory effect on insulin release from pancreatic beta cells via KATP channel dependent and independent ways. These results indicate that CZ fruits have the potential to use in diabetes therapy.展开更多
In this work, the exp(-φ (ξ )) -expansion method is used for the first time to investigate the exact traveling wave solutions involving parameters of nonlinear evolution equations. When these parameters are taken to...In this work, the exp(-φ (ξ )) -expansion method is used for the first time to investigate the exact traveling wave solutions involving parameters of nonlinear evolution equations. When these parameters are taken to be special values, the solitary wave solutions are derived from the exact traveling wave solutions. The validity and reliability of the method are tested by its applications to Nano-ionic solitons wave’s propagation along microtubules in living cells and Nano-ionic currents of MTs which play an important role in biology.展开更多
目的:基于网络药理学方法筛选固本平喘剂(补骨脂、地龙、防风)中的主要活性成分,探讨其治疗支气管哮喘的作用机制。方法:通过中药系统药理学数据库TCMSP数据库、中药与化学成分数据库,筛选固本平喘剂的活性成分及靶标。利用Genecards、O...目的:基于网络药理学方法筛选固本平喘剂(补骨脂、地龙、防风)中的主要活性成分,探讨其治疗支气管哮喘的作用机制。方法:通过中药系统药理学数据库TCMSP数据库、中药与化学成分数据库,筛选固本平喘剂的活性成分及靶标。利用Genecards、OMIM数据库获得支气管哮喘的潜在靶标基因。将两者靶基因进行映射后通过Cytoscape3.6.1软件构建“成分-靶标”网络、结合String数据库构建蛋白质相互作用网络扩充核心靶点。依托功能注释生物信息学分析平台DAVID数据库对固本平喘剂的作用靶点进行基因本体(gene ontology,GO)生物学过程和基因组百科全书(kyoto encyclopedia of genes and genomes,KEGG)通路富集注释分析,通过Autodock vina软件进行分子对接以验证结果。结果:符合筛选条件的共有53个活性成分,补骨脂18个,地龙17个,防风18个,筛选得到固本平喘剂关键成分,包括补骨脂黄酮类、补骨脂查耳酮类、汉黄芩素、补骨脂酚、β-谷甾醇等;通过GenCards、OMIM数据库剔除重复后,共收集支气管哮喘潜在靶点2358个。将固本平喘剂和支气管哮喘靶点进行映射取交集共得到237个交叉靶点,即固本平喘剂治疗支气管哮喘潜在作用靶点。以degree值大于二倍均值的靶点为PTGS2、ESR1、ACHE、ESR2、PTGS1、DPP4、ADORA3,degree值排名前5的靶蛋白为PIK3CA、MAPK3、MAPK1、TP53、AKT1。主要涉及PI3K-Akt信号通路、TNF信号通路、趋化因子信号通路、FoxO信号通路、MAPK信号通路、Toll样受体信号通路、T细胞受体信号通路等。结论:固本平喘剂治疗支气管哮喘潜在作用靶点有PTGS2、ESR1、ACHE、ESR2、PTGS1、DPP4、ADORA3、PIK3CA、MAPK3、MAPK1、TP53、AKT1,可能通过抗感染、调节免疫、抑制气道重塑等发挥作用。展开更多
文摘Objective:To discuss phytopharmacological potential and anti-asthmatic activity of Ficus religiosa(F.religiosa)(L.).Methods:Fresh leaves of F.religiosa were obtained from Vastrapur Lake,Ahmedabad,and dried to obtain powder.Histamine and acetylcholine were used to guinea pigs to establish bronchospasm model.In in vivo study,the aqueous extract of F.religiosa leaves (AEFR) at doses of 150 and 300 mg/ kg was administrated to guinea pigs,and the broncho-protective activity of AEFR was compared with aminophylline at 25 mg/kg.While in in vitro study,and 10 g/mL,20 g/mL,30 g/mL of AEFRL was administrated to guinea pigs,respectively, and mast cell stabilizing activity of AEFR was compared with ketotifen at 10 g/mL.Results: In the in-vivo model,pre-treatment with aminophylline(25 mg/kg,ip.) could significantly delay the onset of histamine induced pre-convulsive dyspnea,compared with vehicle control. Administration of AEFRL(150 and 300 mg/kg,ip.) also produced significant effect on latency to develop histamine & acetylcholine induced pre-convulsive dyspnea.In the mast cell stabilizing model,AEFRL at 10,20 and 30μg/mL could significantly increase the number of intact cells. Conclusions:It can be concluded that AEFRL is effective on histamine & acetylcholine induced bronchospasm in guinea pigs.In addition,AEFRL can potentiate the number of intact cells in the mast cell stabilizing model._____________________________________________________
文摘Objective: To study the phytochemistry, anti-asthmatic and antioxidant activities of the aqueous leaf extract of Anchomanes difformis(Blume) Engl.(A. difformis) and to verify claims of use in folk medicine.Methods: For anti-asthmatic activity, male and female guinea pigs with average body weight of(451.4 ± 118.1) g were divided into six groups of six animals each. Group 1served as control(distilled water); Group 2 was administered with salbutamol(reference drug) only; Group 3 served as ovalbumin sensitized group, Group 4, 5 and 6 were treated with A. difformis extract at doses of 100, 200 and 400 mg/kg, respectively. Described methods were used to test fluid viscosity, fluid volume and quantitative phytochemistry analysis. Absorbance was read using a UV–Vis spectrophotometer and results computed in percentage. Total antioxidant assays [2, 2-diphenyl-1-picrylhydrazyl(DPPH) and lipid peroxidation assay], were carried out using reported procedures.Results: The anti-asthmatic evaluation showed that protection from asthma of the animals in Group 6(400 mg/kg, 32.7%) were similar to that in Group 2(salbutamol, 33.0%).Excised trachea was free of mucus secretion in Group 5(200 mg/kg) as was observed in the control group. Fluid volume increase in Groups 3 and 6 indicated mucus secretion.DPPH radical scavenging activity of extract was effective as ascorbic acid which served as standard at 20 mg/m L. But, the extract elicited low lipid peroxidation activity compared with the reference(tocopherol) at concentrations tested.Conclusions: A. difformis aqueous leaf extract is safe and possesses positive antiasthmatic and antioxidant activities as claimed by traditional herbal practitioners in Delta State.
文摘Objective:To study the usage of anti-asthmatic dugs and enumerate the patients’ noncompliance. Methods:The study was conducted from 5th Feb,2006 to 5th Mar,2006.The samples were from the general medicine ward.All patients with respiratory tract infection who received anti-asthmatic drugs were included in the study.Data were collected from clinical notes and structured patient’s data,and patient interview utilizing a piloted questionnaire data collection form.The questionnaire included patient demographics,anti-asthmatics prescribed, dose,frequency and previous treatment if any and its duration,concomitant medications etc. Results:26.31%of patients were 61-70 years old.Among 57 patients,91.23%of patients received multi-therapy,8.77%of patients received mono-therapy,59.65%of patients took over the counter(OTC) drugs and 57.89%of patients were non compliant.Anti-asthmatic drugs were prescribed to asthmatic patients as oral,inhalation and others(injections),and more than one route were used for administration of drugs.Conclusion:The anti-asthmatics are used to treat breathing difficulties such as allergy.Poor compliance to treatment is common among the patients,which makes it difficult to manage asthma and increases both morbidity and mortality.It is suggested that interventions have to be done by providing counseling and improving the current prescribing trend for better and rational utilization.
文摘Objective: To investigate the expression of CD40 and CD40 ligand (CD4OL) on the surface of peripheral blood mononuclear cells(PBMCs) in asthmatic rats and the effect of anti-CD40L McAb on cytokines of PBMCs. Methods: Flow cytometry and RT-PCR were used to detect the expression of CD40 and CD40L of PBMCs in asthmatic rats. After the PBMCs was treated with anti-CD40L McAb, ELISA was used to detect the IL-4 and IFN-γ levels of culture supernatants. Results: Compared with the normal control group, the expression of CD40 and CD40L of PBMCs in asthmatic rats increased (P 〈 0.05). Compared with the untreated group, the level of IL-γ and the ratio of IL-4/IFN-γ decreased after the PBMCs was treated with anti-CD40L McAb(P 〈 0.05). Conclusion: The expression of CD40 and CD40L on the surface of PBMCs in asthmatic rats was up-regulated. Anti-CD40L McAb can rectify the imbalance of Th1 and Th2 cytokines.
文摘利用Arnol'd的Legendrian理论,对三维Anti de Sitter空间中Lorentzian曲面进行了研究.引入光维高度函数概念研究了三维Anti de Sitter空间Lorentzian曲面的S1t×S1s-值、光锥Gauss映射的奇点,进行了奇点分类,揭示了类光Causs-kronecker曲率之间的关系;并研究了Lorentzian曲面的一些基本几何性质.
基金supported by NIH/NCCAM center grant # 1P01 AT002644725-01"Center for Chinese Herbal Therapy(CHT) for Asthma"to Dr.Xiu-Min Li
文摘OBJECTIVE: Anti-asthma herbal medicine intervention (ASHMITM), a combination of three tradi- tional Chinese medicinal herbs developed in our laboratory, has demonstrated efficacy in both mouse models of allergic asthma, and a double-blind placebo-controlled clinical trial in patients with asthma. This study was designed to determine if the anti-inflammatory effects of individual herbal constituents of ASHMITM exhibited synergy. METHODS: Effects of ASHMI and its components aqueous extracts of Lingzhi (Ganoderma lucidum), Kushen (Sophora flavescens) and Gancao (Glycyrrhiza uralensis), on Th2 cytokine secretion by murine memory Th2 cells (D10.G4.1) and eotaxin-1 secretion by human lung fibroblast (HLF-1) cells were determined by measuring levels in culture supernatants by enzyme- linked immunosorbent assay. Potential synergistic effects were determined by computing interaction indices from concentration-effect curve parameters. RESULTS: Individual Lingzhi, Kushen and Gancao extracts and ASHMI (the combination of individual extracts) inhibited production of interleukin (IL)-4 and IL-5 by murine memory Th2 cells and eotaxin-1 production by HLF-1 cells. The mean 25%-inhibitory-concentration (IC2s) values (mg/mL) forASHMI, Lingzhi, Kushen and Gancao for IL-4 production were 30.9, 79.4, 123, and 64.6, respectively; for IL-5 production were 30.2, 263, 123.2 and 100, respectively; for eotaxin-1 were 13.2, 16.2, 30.2, and 25.1, respectively. The IC50values (mg/mL) for ASHMI, Lingzhi, Kushen and Gancao for IL-4 production were 158.5, 239.9, 446.7, and 281.8, respectively; for eotaxin-1 were 38.1, 33.1, 100, and 158.5, respectively. The interaction indices of ASHMI constituents at IC25 were 0.35 for IL-4, 0.21 for IL-5 and 0.59 for eotaxin-l. The interaction indices at IC^0 values were 0.50 for IL-4 and 0.62 for eotaxin-1 inhibition. Inhibition of IL-5 did not reach IC^0 values. All interaction indices were below 1 which indicated synergy. CONCLUSION: By comparing the interaction index values, we find that constituents in ASHMITM synergistically inhibited eotaxin-1 production as well as Th2 cytokine production.
文摘It needs the foundation of system and the guarantee of organizational system for anti-corruption,but it is more necessary to build and form an effective anti-corruption mechanism,so that the anti-corruption can be really put into practice. Anti-corruption mechanism refers to a organic operation system of the interaction,interconnection and constraint between the constituent elements( parts) and elements of national anti-corruption,and as a system,anti-corruption mechanism should have the characteristics of system aticness,comprehensiveness,transparency,legalization,public participation,scientific dynam ic,and internationalism. The construction of deepening anti-corruption mechanism is the need for reconstructing the ruling legitimacy of the party and the governm ent. Adhering to the principle of treating both root causes and symptoms is necessary in the construction of anti-corruption m echanism,com bating and punishing corruption is an important part of anti-corruption,and the prevention and control of corruption is the basic project of anti-corruption. Therefore,the construction of prevention and control mechanism in the anti-corruption mechanism has a more far-reaching significance.
基金The project serial number 92B0716Shanghai Natural Science Foundation
文摘A research on the process of cotton fabric flame-re-tarding,anti-bacterial finishing and one-bath finish-ing of anti-bacterial and flame-retarding is discussed.The flame retardant agent was phosphorous-contained,and the bacteriostatic finishing agent named SFR-1 wassynthesized.The flame retardancy of the fabric finishedcan meet the DOC FF3-71 Children Sleepwear Stan-dard.Its bacterial inhibiting capacity can meet and ex-ceed the requirements of similar products
文摘Friction spun core yarn has two components: filament core and staple fiber sheath. Under axial rubbing action, the failure mode of the core yarn is the stripping of the sheath from the core. This paper introduces a method to test the anti - stripping property of the core yarn. With a modified Universal Testing Machine, the stripping resistance of friction spun core yarn can be continuously measured. Some factors Influencing the measurements are discussed in detail. The testing results are compared with those from a Y731 Yarn Abrasion Tester and fur - ther confirmed by weaving practice.
基金Supported by the National Natural Science Foundation of China(No.81030066)
文摘Objective: Mahuang-Shigao herb-pair is a famous formula composed of Ephedra and Gypsum. The herb-pair is frequently used for treating cold symptoms and bronchial asthma in the clinical practice of Chinese medicine (CM). In the present study, we evaluated evidence for the benefit of combined use of Ephedra and Gypsum by analyzing the antipyretic and anti-asthmatic activities of Ephedra-Gypsum. Methods: The antipyretic effects of Ephedra-Gypsum were evaluated in yeast-induced hyperthermia test. Thirty male Wistar rats were randomly divided into 5 groups, including control group, standard aspirin group, and 3 Ephedra- Gypsum groups of different doses (6, 12, 24 g/kg). Ephedra-Gypsum extract and asprin were administered orally 6 h after the injection of yeast solution and body temperature was measured every 1 h for 8 h. The anti- asthmatic effects of Ephedra-Gypsum were evaluated using an ovalbumin (OVA)-induced asthmatic rat model. Thirty-six male SD rats were randomly divided into 6 groups. Rats were alternately sensitized and OVA+Al(OH)3 challenged by exposure to mists of ovalbumin. Ephedra-Gypsum extracts (6, 12, 24 g/kg) or dexamethasone were administered 45 min prior to the allergen challenge for 8 days. Latent period and the weight of wet to dry ratio of lung were determined. In addition, the eosinophils in blood and white blood cell (WBC) were counted by an YZ-Hemavet Analyzer. Results: The Ephedra-Gypsum extracts at test dose (6, 12, 24 g/kg) significantly and dose-dependently attenuated yeast-induced fever in rats. The Ephedra-Gypsum extracts also prolonged the latent period, reduced OVA-induced increases in eosinophils and WBC, and decreased the wet and dry weight ratio of the lungs in the anti-asthmatic test. Conclusions: These findings indicate that the Ephedra-Gypsum extract has antipyretic and anti-asthmatic properties. Hence, the results support additional scientific evidence in prescriptions.
文摘Since ancient times, traditional medicines have been in the usage for the treatment of Diabetes mellitus. An edible fruit from traditional medicinal plant Capparis zeylanica (CZ) was studied for its anti diabetic, insulin secretagogue activities and mechanisms involved in it. In Streptozotocin induced diabetes rats, oral administration of Capparis zeylanica methanolic extract (CZME) (200 mg/kg body weight) for 28 days showed a significant reduction in blood glucose levels by 35.53% and enhanced circulating insulin levels by 81.82% than the diabetic control rats. The insulin secretagogue activity mechanisms of the extract were evaluated by using mouse insulinoma beta cell line (MIN6-β). The extract stimulated insulin release in dependent manner of glucose concentration (3 - 16.7 mM) and extract dose (5 - 500 μg/mL). The insulin releasing effect of the extract was significantly enhanced by 3-isobutyl-1-methyl xanthine, glibenclamide, elevated extracellular calcium and K+ depolarized media. This insulin release was significantly reduced in calcium blocking conditions (by nifedipine and EGTA), in the presence of potassium channel opener (diazoxide). Hence, anti diabetic activity of CZME might be a result of its stimulatory effect on insulin release from pancreatic beta cells via KATP channel dependent and independent ways. These results indicate that CZ fruits have the potential to use in diabetes therapy.
文摘In this work, the exp(-φ (ξ )) -expansion method is used for the first time to investigate the exact traveling wave solutions involving parameters of nonlinear evolution equations. When these parameters are taken to be special values, the solitary wave solutions are derived from the exact traveling wave solutions. The validity and reliability of the method are tested by its applications to Nano-ionic solitons wave’s propagation along microtubules in living cells and Nano-ionic currents of MTs which play an important role in biology.
文摘目的:基于网络药理学方法筛选固本平喘剂(补骨脂、地龙、防风)中的主要活性成分,探讨其治疗支气管哮喘的作用机制。方法:通过中药系统药理学数据库TCMSP数据库、中药与化学成分数据库,筛选固本平喘剂的活性成分及靶标。利用Genecards、OMIM数据库获得支气管哮喘的潜在靶标基因。将两者靶基因进行映射后通过Cytoscape3.6.1软件构建“成分-靶标”网络、结合String数据库构建蛋白质相互作用网络扩充核心靶点。依托功能注释生物信息学分析平台DAVID数据库对固本平喘剂的作用靶点进行基因本体(gene ontology,GO)生物学过程和基因组百科全书(kyoto encyclopedia of genes and genomes,KEGG)通路富集注释分析,通过Autodock vina软件进行分子对接以验证结果。结果:符合筛选条件的共有53个活性成分,补骨脂18个,地龙17个,防风18个,筛选得到固本平喘剂关键成分,包括补骨脂黄酮类、补骨脂查耳酮类、汉黄芩素、补骨脂酚、β-谷甾醇等;通过GenCards、OMIM数据库剔除重复后,共收集支气管哮喘潜在靶点2358个。将固本平喘剂和支气管哮喘靶点进行映射取交集共得到237个交叉靶点,即固本平喘剂治疗支气管哮喘潜在作用靶点。以degree值大于二倍均值的靶点为PTGS2、ESR1、ACHE、ESR2、PTGS1、DPP4、ADORA3,degree值排名前5的靶蛋白为PIK3CA、MAPK3、MAPK1、TP53、AKT1。主要涉及PI3K-Akt信号通路、TNF信号通路、趋化因子信号通路、FoxO信号通路、MAPK信号通路、Toll样受体信号通路、T细胞受体信号通路等。结论:固本平喘剂治疗支气管哮喘潜在作用靶点有PTGS2、ESR1、ACHE、ESR2、PTGS1、DPP4、ADORA3、PIK3CA、MAPK3、MAPK1、TP53、AKT1,可能通过抗感染、调节免疫、抑制气道重塑等发挥作用。