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Phytopharmacological evaluation and anti-asthmatic activity of Ficus religiosa leaves 被引量:3
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作者 Megha Kapoor Nidhi Jasani +2 位作者 Niyati Acharya Sanjeev Acharya Vimal Kumar 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2011年第8期642-644,共3页
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
关键词 FICUS religiosa Peepal anti-asthmatic BRONCHODILATOR MAST cell stabilizing
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Phytochemistry, anti-asthmatic and antioxidant activities of Anchomanes difformis(Blume) Engl. leaf extract
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作者 Ovuakporie-Uvo Oghale Mac Donald Idu 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2016年第3期225-231,共7页
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
关键词 anti-asthmatic anti-OXIDANT PHYTOCHEMISTRY Anchomanes difformis
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A study on utilization of anti-asthmatic drugs at a medical college hospital in India
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作者 Shalini Ravichandran Vipin Mathew +4 位作者 Vijesh Shaheer Noushad Abdul Nazer Ali Ravichandran Veerasamy 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2010年第1期70-73,共4页
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
关键词 Drug utilization anti-asthmatics NON-COMPLIANCE COUNSELING
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The expression of CD40 and CD40L on the surface of peripheral blood mononuclear cells in asthmatic rats and the effect of anti-CD40L McAb on Th1 and Th2 cytokines
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作者 Keying Xue Shengdao Xiong +3 位作者 Weining Xiong Yongming Zhou Xiang Long Yan Li 《Journal of Nanjing Medical University》 2006年第3期162-165,共4页
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
关键词 asthmatic rats peripheral blood mononuclear cells CD40 CD40L anti-CD40L McAb CYTOKINE
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基于3,5-二溴水杨醛席夫碱镍配合物-氧化石墨烯电化学免疫传感器检测Anti-IgG含量的研究 被引量:2
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作者 赖丽燕 刘峥 +2 位作者 李巍 周昱 黄红霞 《分析科学学报》 CAS CSCD 北大核心 2014年第4期481-484,共4页
应用物理吸附法将羊抗人IgG抗原直接固定于3,5-二溴水杨醛席夫碱镍配合物-氧化石墨烯修饰的金电极表面,制备电化学免疫传感器。采用循环伏安法和交流阻抗法对传感器进行表征,结果表明该传感器适合检测Anti-IgG浓度。同时探讨了缓冲液pH... 应用物理吸附法将羊抗人IgG抗原直接固定于3,5-二溴水杨醛席夫碱镍配合物-氧化石墨烯修饰的金电极表面,制备电化学免疫传感器。采用循环伏安法和交流阻抗法对传感器进行表征,结果表明该传感器适合检测Anti-IgG浓度。同时探讨了缓冲液pH值、扫描速度、免疫反应温度、抗原与抗体配比对循环伏安峰电流的影响,结果表明在5-100mV/s扫速范围内,峰电流与扫速呈线性。孵育最优条件为25℃,h-IgG与Anti-IgG配比为1∶1。循环伏安法研究还表明Anti-IgG浓度在0.01-260μg/L范围内,线性关系良好,相关系数r^2=0.993,检出限(S/N=3)为0.006μg/L,据此建立了检测Anti-IgG浓度的新方法。 展开更多
关键词 氧化石墨烯 3 5-二溴水杨醛席夫碱镍配合物 anti—IgG 电化学免疫传感器
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信号分子IRAK1/4在antiβ-2GPI/β2GPI复合物诱导THP-1细胞表达TF中的作用探讨 被引量:1
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作者 文海平 周红 +4 位作者 许国莹 郭东琳 周芳 陈东东 解鸿翔 《中国免疫学杂志》 CAS CSCD 北大核心 2011年第4期295-299,共5页
目的:探讨IRAK1和IRAK4在antiβ-2GPI/β2GPI复合物诱导单核细胞株THP-1表达组织因子(TF)中的作用。方法:利用荧光定量PCR(Real-time PCR)、TF活性试剂盒分别检测THP-1细胞表达TF mRNA及TF活性;Western blot检测anti-β2GPI/β2GPI复合... 目的:探讨IRAK1和IRAK4在antiβ-2GPI/β2GPI复合物诱导单核细胞株THP-1表达组织因子(TF)中的作用。方法:利用荧光定量PCR(Real-time PCR)、TF活性试剂盒分别检测THP-1细胞表达TF mRNA及TF活性;Western blot检测anti-β2GPI/β2GPI复合物诱导THP-1细胞表达IRAK1、磷酸化-IRAK1(p-IRAK1)、IRAK4情况;观察IRAK1/4抑制物是否干预anti-β2GPI/β2GPI复合物诱导THP-1表达TF。结果:Antiβ-2GPI/β2GPI复合物(100μg/ml)诱导THP-1细胞表达TF显著增加(P<0.05 vs control);Antiβ-2GPI/β2GPI复合物(100μg/ml)刺激THP-1细胞表达IRAK1、p-IRAK1、IRAK4(蛋白)显著升高(P<0.05 vscontrol);IRAK1/4抑制物(50μmol/L)能够阻断antiβ-2GPI/β2GPI复合物(100μg/ml)诱导THP-1表达TF及IRAK1磷酸化的效应。结论:antiβ-2GPI/β2GPI复合物诱导THP-1细胞表达TF过程中,信号分子IRAK1/4被激活进而发挥重要作用。 展开更多
关键词 抗磷脂综合征 antiβ-2GPI/β2GPI IRAK1 IRAK4 组织因子
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三维Anti de Sitter空间中Lorentzian曲面的S_t^1×S_s^1-值光锥Gauss映射的奇点分类
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作者 于海鸥 高瑞梅 +1 位作者 孔令令 裴东河 《东北师大学报(自然科学版)》 CAS CSCD 北大核心 2010年第4期35-45,共11页
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
关键词 Lorentzian曲面 三维anti DE SITTER空间 St1×Ss1-值光锥Gauss映射 Lorentzian光维高度函数
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Constituents of the anti-asthma herbal formula ASHMI^(TM) synergistically inhibit IL-4 and IL-5 secretion by murine Th2 memory cells,and eotaxin by human lung fibroblasts in vitro 被引量:16
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作者 Bolleddula Jayaprakasam Nan Yang +4 位作者 Ming-Chun Wen Rong Wang Joseph Goldfarb Hugh Sampson Xiu-Min Li 《Journal of Integrative Medicine》 SCIE CAS CSCD 2013年第3期195-205,共11页
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
关键词 medicine Chinese traditional medicine herbal plant extracts anti-asthma herbal medicine intervention (ASHMI) anti-asthmatic agents chemokine CCL11 INTERLEUKIN-4 interleukin -5 in vitro
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On the Construction of Deepening Anti - corruption Mechanism
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作者 Ding Huanxiang Xuliang 《学术界》 CSSCI 北大核心 2018年第3期260-272,共13页
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
关键词 anti - CORRUPTION MECHANISM CONSTRUCTION CONNOTATION and definition val-ue analysis prevention and control MECHANISM
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Anti-Bacterial and Flame Retardant for Cotton Fabric by One-Bath Finishing
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作者 朱平 隋淑英 +1 位作者 王炳 孙铠 《Journal of China Textile University(English Edition)》 EI CAS 1998年第2期82-84,共3页
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
关键词 cotton fabric flame - RETARDING FINISHING anti - BACTERIAL FINISHING one - BATH
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Testing of Anti-stripping Property of Friction Spun Core Yarn
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作者 丁辛 宋允 《Journal of China Textile University(English Edition)》 EI CAS 1998年第3期66-69,共4页
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
关键词 FRICTION SPUN CORE YARN anti - STRIPPING PROPERTY STRIPPING resistance testing.
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UPLC-MS/MS法测定止咳平喘中药制剂中16种非法添加化学药物 被引量:11
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作者 汪瑾彦 梁祈 +1 位作者 庄玥 蔡霞 《中成药》 CAS CSCD 北大核心 2022年第1期127-131,共5页
目的建立UPLC-MS/MS法测定止咳平喘类中药制剂中16种非法添加化学药物。方法样品甲醇提取物的分析采用Waters ACQUITY UPLC BEH C;色谱柱(2.1 mm×100 mm, 1.7μm);流动相乙腈-10 mmol/L甲酸铵(0.1%甲酸),梯度洗脱;在电喷雾离子化... 目的建立UPLC-MS/MS法测定止咳平喘类中药制剂中16种非法添加化学药物。方法样品甲醇提取物的分析采用Waters ACQUITY UPLC BEH C;色谱柱(2.1 mm×100 mm, 1.7μm);流动相乙腈-10 mmol/L甲酸铵(0.1%甲酸),梯度洗脱;在电喷雾离子化正负离子模式下,以多反应监测模式(MRM)检测。结果 16种药物在各自范围内线性关系良好(r>0.999 0);检出限固体制剂0.05~0.17 mg/g,液体制剂0.08~0.25 mg/mL;定量限固体制剂0.17~0.50 mg/g,液体制剂0.25~0.75 mg/mL,平均回收率82.8%~125.4%,RSD 0.7%~13.2%。42批样品中有13批检出非法添加了12种药物。结论该方法简便,准确,可用于止咳平喘中药制剂中16种非法添加化学药物的测定。 展开更多
关键词 中药制剂 止咳平喘 化学药物 非法添加 UPLC-MS/MS
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降气平喘中药对哮喘患者可溶性IL-2受体表达及气道高反应性的影响 被引量:1
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作者 韩建平 李桂兰 《天津医药》 CAS 2000年第7期405-406,共2页
目的:观察降气平喘中药对哮喘患者可溶性白细胞介素-2受体(sIL-2R)表达及气道高反应性的影响。方法:60例缓解期哮喘患者分为中药组、强的松组、β-2受体组,分别于服药前后抽血,采用双抗体夹心ELASA测定sIL-2R,采用乙酰甲胆碱吸入法测定... 目的:观察降气平喘中药对哮喘患者可溶性白细胞介素-2受体(sIL-2R)表达及气道高反应性的影响。方法:60例缓解期哮喘患者分为中药组、强的松组、β-2受体组,分别于服药前后抽血,采用双抗体夹心ELASA测定sIL-2R,采用乙酰甲胆碱吸入法测定气道反应性。结果:中药组与强的松组sIL-2R与气道高反应性明显降低,治疗前后有非常显著性差异(P<0.01)。两组治疗后相比无统计学意义(P>0.05)。β_2组治疗前后的sIL-2R及气道反应性无明显变化(P>0.05)。结论:中药平喘剂通过降低患者sIL-2R及气道高反应性发挥抗炎平喘作用。 展开更多
关键词 降气平喘中药 哮喘 SIL-2 支气管高反应性
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Antipyretic and Anti-Asthmatic Activities of Traditional Chinese Herb-Pairs, Ephedra and Gypsum 被引量:13
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作者 梅芬 邢学锋 +5 位作者 汤庆发 陈飞龙 郭阳 宋帅 谭晓梅 罗佳波 《Chinese Journal of Integrative Medicine》 SCIE CAS CSCD 2016年第6期445-450,共6页
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
关键词 Ephedra-Gypsum herb-pair antipyretic effect anti-asthmatic activity Chinese medicine
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UPLC-MS/MS同时测定止咳平喘类保健食品和中成药中的25种非法添加化学成分 被引量:3
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作者 张珊珊 贾昌平 郑佳新 《中南药学》 CAS 2023年第12期3293-3298,共6页
目的 建立超高效液相色谱-串联质谱法(UPLC-MS/MS)同时测定止咳平喘保健食品和中成药中25种非法添加的化学成分。方法 样品采用甲醇超声提取,经色谱柱分离,以甲醇(含0.1%甲酸)-0.1%甲酸溶液梯度洗脱,采用电喷雾离子源正负离子模式,多反... 目的 建立超高效液相色谱-串联质谱法(UPLC-MS/MS)同时测定止咳平喘保健食品和中成药中25种非法添加的化学成分。方法 样品采用甲醇超声提取,经色谱柱分离,以甲醇(含0.1%甲酸)-0.1%甲酸溶液梯度洗脱,采用电喷雾离子源正负离子模式,多反应监测(MRM)模式检测。结果 25种止咳平喘药物在各自线性范围内与测定值线性关系良好,相关系数均≥0.9990;检测限为1.5~37.2 ng·g^(-1),平均回收率72.0%~109.8%,RSD为0.10%~8.7%。应用该方法对10批样品进行筛查,共有2批中成药胶囊剂中检出标识外成分,其中1批检出茶碱,另1批检出那可丁和盐酸麻黄碱。结论 该方法操作简便,具有良好的选择性、灵敏度及准确度,能够用于止咳平喘类保健食品和中成药中非法添加药物的测定。 展开更多
关键词 止咳平喘 保健食品 中成药 非法添加 超高效液相色谱-串联质谱法
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<i>In Vivo</i>and <i>in Vitro</i>Evaluation of Anti Diabetic and Insulin Secretagogue Activities of <i>Capparis zeylanica</i>
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作者 Umamahesh Balekari Ciddi Veeresham 《Pharmacology & Pharmacy》 2015年第7期311-320,共10页
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
关键词 anti DIABETIC INSULIN Secretagogue MIN6-β Cells KATP Channel
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Exact Traveling Wave Solutions of Nano-Ionic Solitons and Nano-Ionic Current of MTs Using the exp(-φ (ξ ))-Expansion Method
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作者 Emad H. M. Zahran 《Advances in Nanoparticles》 2015年第2期25-36,共12页
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
关键词 The exp(-φ )) -Expansion Method Nano-Solitons of IONIC Wave’s Propagation along Microtubules in Living Cells Nano-Ionic Currents of MTS Traveling WAVE SOLUTIONS KINK and anti KINK WAVE SOLUTIONS
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中麻黄的化学成分研究 被引量:1
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作者 范锡玲 曹彦刚 +2 位作者 焦新棉 郑晓珂 冯卫生 《天然产物研究与开发》 CAS CSCD 北大核心 2024年第3期415-422,484,共9页
研究中麻黄(Ephedra intermedia Schrenk et C.A.Mey.)干燥草质茎的化学成分及其抗哮喘活性。应用硅胶柱色谱、Sephadex LH-20柱色谱、Toyopreal HW-40C柱色谱以及半制备型高效液相色谱等多种手段对中麻黄草质茎的50%丙酮提取物进行化... 研究中麻黄(Ephedra intermedia Schrenk et C.A.Mey.)干燥草质茎的化学成分及其抗哮喘活性。应用硅胶柱色谱、Sephadex LH-20柱色谱、Toyopreal HW-40C柱色谱以及半制备型高效液相色谱等多种手段对中麻黄草质茎的50%丙酮提取物进行化学成分研究,从中分离鉴定了22个化合物,根据其理化性质和波谱学数据鉴定其结构,分别为4-甲氧基肉桂酸(1)、肉桂酸(2)、ω-hydroxypropioguaiacone(3)、threo-8 S-7-methoxysyringylglycerol(4)、3-(2,4′-dihydroxy-3′,5′-dimethoxyphenyl)propanoic acid(5)、8-hydroxy-9-methyl-7-(4-hydroxy-3,5-dimethoxyphenyl)-7-propanone(6)、3-羟基-1-(4-羟基-3,5-二甲氧基苯基)-1-丙酮(7)、2-羟基-1-(4-羟基-3-甲氧基)苯基-1-丙酮(8)、异咖啡酸甲酯(9)、trans-syringin(10)、cis-syringin(11)、(4 R)-4-hydroxy-4-(2-hydroxypropan-2-yl)cyclo-hex-1-ene-1-carboxylic acid(12)、7-羟基-α-松油醇(13)、去氢吐叶醇(14)、脱落酸(15)、黑麦草素内脂(16)、(E)-3-(3-hydroxybut-1-enyl)-2,4,4-trimethylcyclohexa-2,5-dienone(17)、3-(3′-hydroxybutyl)-2,4,4-trimethylcyclohexa-2,5-dienone(18)、对异丙基苯甲酸(19)、p-cymen-7-ylβ-D-glucopyranoside(20)、acyclic 7-hydroxygeranic acid(21)、7,7-dimethylbicyclo[3.1.1]hept-2-ene-1-carboxylic acid(22),其中化合物3~6、8、10~14、17~19、21、22为首次从该植物中分离得到,同时经体外抗哮喘活性筛选,结果显示化合物11和14能够显著抑制β-氨基己糖苷酶的释放。 展开更多
关键词 麻黄属 中麻黄 结构鉴定 抗哮喘活性
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基于网络药理学探讨固本平喘剂治疗支气管哮喘的作用机制
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作者 鲍鑫宇 周庆伟 《河南中医》 2024年第2期217-223,共7页
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
关键词 固本平喘剂 支气管哮喘 网络药理学 分子对接 作用机制
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完全控制支气管哮喘患者用药情况及其对哮喘急性发作的影响研究 被引量:23
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作者 刘琳琳 杨巧玉 +4 位作者 何青 聂汉祥 黄毅 丁续红 胡苏萍 《中国全科医学》 CAS CSCD 北大核心 2015年第31期3818-3821,共4页
目的了解完全控制哮喘患者的用药情况,并探讨不同用药情况对哮喘急性发作的影响。方法选取2007年1月—2013年12月在武汉大学人民医院呼吸内科门诊就诊或治疗后出院的501例完全控制哮喘患者为研究对象。根据用药情况,以单纯采用吸入药... 目的了解完全控制哮喘患者的用药情况,并探讨不同用药情况对哮喘急性发作的影响。方法选取2007年1月—2013年12月在武汉大学人民医院呼吸内科门诊就诊或治疗后出院的501例完全控制哮喘患者为研究对象。根据用药情况,以单纯采用吸入药物进行治疗的患者为吸入治疗组,以联合采用15服药物和吸入药物进行治疗的患者为联合治疗组。入组后两组患者均维持达到完全控制时的治疗方案,随访24周。记录患者随访期间的临床表现、哮喘控制测试量表(ACT)得分、肺功能以及因哮喘急性发作退出试验的病例数、存在1次及以上急性发作的病例数、累计急性发作次数。结果共有371例患者按要求完成了24周随访,吸入治疗组和联合治疗组分别为208例(占56.1%)和163例(占43.9%)。两组完成24周随访患者的性别、平均年龄、第1秒用力呼气容积(FEV1)占预计值百分比、第1秒用力呼气容积占用力肺活量百分比(FEV1/FVC)及FEV,改善率比较,差异均无统计学意义(P〉0.05);而25%一75%用力肺活量时呼吸流速(FEF25%~75%)占预计值百分比比较,差异有统计学意义(P〈0.05)。163例联合采用口服药物和吸入药物进行治疗的患者中,131例(占80.4%)的口服药物为茶碱缓释片,124例(占76.1%)为吸入大剂量糖皮质激素未获得完全控制者。吸入治疗组和联合治疗组因哮喘急性发作退出试验的病例数比较,差异有统计学意义(P〈0.05);完成24周随访的患者中,急性发作次数≥1次的病例数比较,差异有统计学意义(P〈0.05);累计急性发作次数比较,差异亦有统计学意义(P〈0.05)。结论吸入药物疗法仍然是目前控制哮喘的主要治疗方法,对于单纯采用吸入疗法无法达到完全控制的患者,可适当联合采用口服药物进行治疗,茶碱缓释片是目前常用的口服治疗哮喘药物。与单纯采用吸入药物进行治疗的患者相比,联合采用口服药物和吸入药物进行治疗的患者哮喘急性发作水平较低。 展开更多
关键词 哮喘 抗哮喘药 急性发作
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