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妊娠期糖尿病孕妇脐血流S/D比值和超声参数Z-评分对宫内生长受限胎儿的预测价值 被引量:25
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作者 安黎明 蔡冬燕 +1 位作者 史秀丽 宫俊英 《川北医学院学报》 CAS 2020年第4期633-636,共4页
目的:探讨妊娠期糖尿病(GDM)孕妇脐血流收缩期最大血流峰值/舒张期最小血流峰值(S/D)比值和超声参数Z-评分对宫内生长受限胎儿(FGR)的预测价值。方法:回顾性分析110例FGR孕妇临床资料,根据孕妇是否合并GDM分为GDM组(n=36)和非GDM组(n=7... 目的:探讨妊娠期糖尿病(GDM)孕妇脐血流收缩期最大血流峰值/舒张期最小血流峰值(S/D)比值和超声参数Z-评分对宫内生长受限胎儿(FGR)的预测价值。方法:回顾性分析110例FGR孕妇临床资料,根据孕妇是否合并GDM分为GDM组(n=36)和非GDM组(n=74),并收集同期正常妊娠孕妇110例临床资料作为对照组。比较各组不同孕周时孕妇脐S/D比值、超声生长参数(腹围、头腹围比值、腹围的Z-评分、头腹围比值的Z-评分),评估S/D比值对单纯FGR、GDM合并FGR的诊断效能,并绘制ROC曲线。结果:(1)GDM组和非GDM孕妇合并FGR者总S/D比值及28~32周、>32周时S/D比值均高于对照组(P<0.05),GDM组孕妇合并FGR者总S/D比值及不同孕周时S/D比值均高于非GDM孕妇合并FGR者(P<0.05);(2)GDM组孕妇合并FGR者、非GDM组孕妇合并FGR者及对照组不同孕周时腹围、头腹围比值、腹围Z-评分、头腹围比值Z-评分比较,差异均有统计学意义(P<0.05);(3)S/D比值诊断GDM合并FGR的灵敏度、阴性预测值高于S/D比值诊断FGR,准确率、阳性预测值均低于S/D比值诊断FGR,两者诊断特异度相同;(4)S/D比值诊断FGR的曲线下面积最高为0.935(95%CI:0.894~0.964),S/D比值诊断FGR合并GDM的曲线下面积最高为0.826(95%CI:0.769~0.873)。结论:脐血流S/D比值及超声参数Z-评分均是预测单纯FGR和GDM孕妇FGR的有效指标,脐血流S/D比值预测效能良好。 展开更多
关键词 宫内生长受限 妊娠期糖尿病 孕妇脐血流 超声生长参数 Z-评分
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生地黄汤对卵巢早衰大鼠卵巢保护作用及机制的实验研究 被引量:22
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作者 郭东艳 周桦 +4 位作者 范妤 程江雪 史亚军 邹俊波 张小飞 《中国中药杂志》 CAS CSCD 北大核心 2019年第21期4698-4703,共6页
观察生地黄汤对卵巢早衰大鼠卵巢功能的影响,探究其作用机制。48只成年雌性SD大鼠,随机分为空白组,模型组,阳性对照组,生地黄汤高、中、低剂量组。除空白组外,其余各组大鼠每日灌胃雷公藤多苷片75 mg·kg-1造模,连续14 d。从第15天... 观察生地黄汤对卵巢早衰大鼠卵巢功能的影响,探究其作用机制。48只成年雌性SD大鼠,随机分为空白组,模型组,阳性对照组,生地黄汤高、中、低剂量组。除空白组外,其余各组大鼠每日灌胃雷公藤多苷片75 mg·kg-1造模,连续14 d。从第15天开始,模型组灌胃生理盐水2 m L·kg-1;阳性对照组灌胃补佳乐1 mg·kg-1;生地黄汤高、中、低剂量组灌胃生地黄汤12,6,3 g·kg-1,每日1次,连续给药21 d。观察大鼠动情周期,测定卵巢指数、子宫指数;放免法检测血清中性激素水平;HE染色法观察卵巢、子宫形态学变化,检测血清SOD活力、MDA含量;SABC法检测卵巢、子宫组织中ERα的表达;Western blot法检测子宫组织中ERα蛋白表达。与模型组比较,生地黄汤高、中剂量组子宫指数、卵巢指数均增加(P<0. 05),血清中E2,P水平升高(P<0. 01,P<0. 05),LH水平降低(P<0. 01);卵巢内生长卵泡数量增多,子宫内膜增厚,腺体发达增强;血清中SOD活性增强,MDA含量下降;卵泡颗粒细胞及子宫腺上皮细胞中ERα的表达增多,子宫组织中ERα蛋白表达水平上调。与模型组比较,各组血清FSH水平无统计学差异。生地黄汤能够改善子宫和卵巢的形态及功能,缓解卵巢的过早衰竭。其作用可能是通过增强抗氧化能力,促进血清雌、孕激素分泌,增加子宫黏膜腺上皮细胞和卵巢颗粒细胞ER的表达来实现。 展开更多
关键词 生地黄汤 卵巢早衰 性激素 雌激素受体 活性氧
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2015—2017年耐碳青霉烯类肺炎克雷伯菌耐药变迁及流行调查 被引量:21
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作者 李继红 时东彦 +3 位作者 李媛媛 范士英 孙倩 张琳 《中国抗生素杂志》 CAS CSCD 2018年第5期572-576,共5页
目的了解河北医科大学第二医院2015—2017年耐碳青霉烯类肺炎克雷伯菌(carbapenem-resistant Klebsiella pneumoniae,CRKP)变迁及流行特征,并进行流行病学分析。方法采用Vitek 2-Compact进行细菌鉴定和药物敏感试验测定,使用Whonet 5.6... 目的了解河北医科大学第二医院2015—2017年耐碳青霉烯类肺炎克雷伯菌(carbapenem-resistant Klebsiella pneumoniae,CRKP)变迁及流行特征,并进行流行病学分析。方法采用Vitek 2-Compact进行细菌鉴定和药物敏感试验测定,使用Whonet 5.6软件及SPSS 5.0进行数据统计分析,PCR扩增碳青霉烯酶基因blaKPC-2和blaNDM-1;对有流行病学意义的菌株进行多位点序列分型(MLST),目的产物经基因测序和BLAST网上比对确定其基因型。结果 2015—2017年共检出肺炎克雷伯菌非重复菌株4076株。其中,CRKP 831株,占比为20.4%,CRKP主要来源为痰、尿、血,以腹腔引流液耐碳青霉烯肺炎克雷伯菌检出率最高,为22.4%~55.5%;3年间其对亚胺培南耐药率分别为19.3%、24.2%和22.4%,美罗培南耐药率为18.5%、23.1%和21.2%。CRKP对所测试全部抗菌药物耐药率均显著高于碳青霉烯类敏感肺炎克雷伯菌(CSKP)。氨基糖苷类、复方磺胺甲噁唑、头孢替坦对CRKP相对敏感,其他抗菌药物耐药率均高于90%,CS-KP对所测试全部抗菌药物耐药率均低于40%;2016年神经外科耐碳青霉烯肺炎克雷伯菌检出率由2015年3%上升至8%,集中在重症监护室(ICU),耐碳青霉烯酶基因型均为blaKPC-2型,选取神经外科ICU 10d内分离的5株CRKP进行MLST分型,均属于STll型。结论 3年间我院肺炎克雷伯菌耐药情况的变化及2016年在神经外科ICU病房出现的克隆传播,提示我们需采取有效的医院感染防控措施,进一步规范控制抗菌药物使用。 展开更多
关键词 肺炎克雷伯菌 耐药监测 碳青霉烯酶 同源性
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A New Flavonoid in Pine Needles of Cedrus deodara 被引量:15
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作者 LIU dong-yan1,2,shi Xiao-feng1,WANG dong-dong1,2,MA Qu-huan1,ZHANG Jun-min1,2,LI Chong2 1.Gansu Academy of Medical Science,Lanzhou 730050,China 2.School of Pharmacy,Lanzhou University,Lanzhou 730030,China 《Chinese Herbal Medicines》 CAS 2011年第1期5-6,共2页
Objective To study the chemical constituents of flavonoids in pine needles of Cedrus deodara.Methods Flavonoids were isolated and purified from ethyl acetate extract of pine needles by chromatography on silica gel and... Objective To study the chemical constituents of flavonoids in pine needles of Cedrus deodara.Methods Flavonoids were isolated and purified from ethyl acetate extract of pine needles by chromatography on silica gel and Sephadex LH-20.Their structures were identified on the basis of spectroscopic analysis and chemical evidence.Results Five flavonoids were isolated and purified.Their structures were identified as cedrusone A(1),myricetin (2),2R,3R-dihydromyricetin(3),quercetin(4),and 2R,3R-dihydroquercetin(5).Conclusion Compound 1 is a new compound.Compounds 2-5 are isolated from pine needles of this genus for the first time. 展开更多
关键词 cedrusone A FLAVONOIDS MYRICETIN pine needles of Cedrus deodara QUERCETIN
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基于SPOC的混合式教学模式探究——以《中药药剂学》课程为例 被引量:15
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作者 郭东艳 程江雪 +4 位作者 王露 史亚军 邹俊波 张小飞 王晶 《现代中药研究与实践》 CAS 2019年第4期71-74,共4页
目的探讨基于SPOC的混合式教学模式在中药药剂学课程教学中的应用。方法采用基于SPOC的混合式教学模式对课前、课中及课后进行教学过程设计及组织实施。结果该教学模式提高了学生学习的积极性、主动性,学生综合运用知识的能力明显增强... 目的探讨基于SPOC的混合式教学模式在中药药剂学课程教学中的应用。方法采用基于SPOC的混合式教学模式对课前、课中及课后进行教学过程设计及组织实施。结果该教学模式提高了学生学习的积极性、主动性,学生综合运用知识的能力明显增强。结论基于SPOC的混合式教学模式,充分体现了'以学生为中心'的教学理念,值得在中药药剂学及相关课程教学中推广及应用。 展开更多
关键词 SPOC 问题式 翻转课堂 混合式 中药药剂学
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生地黄汤不同配伍比例干预“肾虚血瘀”型崩漏的实验研究 被引量:14
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作者 郭东艳 范妤 +3 位作者 程江雪 张小飞 史亚军 邹俊波 《中南药学》 CAS 2020年第2期182-188,共7页
目的观察不同比例生地黄配伍大黄对大鼠"肾虚血瘀"型崩漏的治疗作用,筛选两者配伍比例,初步探讨其配伍规律。方法采用羟基脲+氢化可的松制备大鼠"肾虚血瘀"模型,筛选造模成功的56只大鼠随机分为8组:空白对照组,模型... 目的观察不同比例生地黄配伍大黄对大鼠"肾虚血瘀"型崩漏的治疗作用,筛选两者配伍比例,初步探讨其配伍规律。方法采用羟基脲+氢化可的松制备大鼠"肾虚血瘀"模型,筛选造模成功的56只大鼠随机分为8组:空白对照组,模型组,宫血宁组,生地黄组,大黄组,生地黄-大黄60∶1组、30∶1组、15∶1组,每组7只。除空白对照组与模型组外,其余各组于造模成功后第2日开始灌胃治疗药物,连续8 d。观察各组大鼠子宫、卵巢体质量及组织病理变化,测定血液流变学、凝血四项相关指标、大鼠血浆中超氧化物歧化酶(SOD1)、过氧化脂质(LPO)、血栓素A2(TXA2)、前列腺素E2(PGE2)、雌激素受体β(ESR2)、肌酐(Cr)、雌二醇(E2)、孕酮(P)含量的变化以及免疫组化法检测对子宫、卵巢雌激素受体蛋白α表达的影响。结果与模型组比较,生地黄-大黄配伍30∶1组可显著延长凝血酶原时间(PT)、活化部分凝血酶原时间(APTT),降低凝血酶时间(TT),降低高、中、低切黏度(P<0.01);显著性升高SOD1、ESR2、TXA2、E2、P(P<0.01),降低LPO、Cr、PGE2(P<0.01);HE染色下观察大鼠卵巢结构显示:30∶1组卵巢发育期卵泡数量较多,多以次级卵泡多见,卵泡细胞、黄体细胞中ER表达明显;30∶1组与模型组比较,子宫内膜均增厚明显,腺体多,基质细胞肥大;ERα在子宫显著表达。结论生地黄-大黄配伍后,对"肾虚血瘀"模型大鼠各项指标改善作用显著,优于单用生地黄及大黄,其最佳配伍比例为生地黄-大黄(30∶1)。止血作用的机制可能与改善血液流变学性能、抗炎、抗氧化及对肾功能、子宫修复等多方面的作用有关。 展开更多
关键词 生地黄汤 崩漏 肾虚血瘀 配伍 血液流变学 雌激素
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粒子设计技术在中药粉体领域的实践应用研究 被引量:11
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作者 邹俊波 封亮 +3 位作者 张小飞 郭东艳 史亚军 贾晓斌 《中国中药杂志》 CAS CSCD 北大核心 2021年第23期6011-6019,共9页
中药固体制剂在中药剂型中累计占比超过50%,中药粉体是中药固体制剂的重要加工原料,其粉体学性质直接影响固体制剂的质量,乃至临床安全性及有效性。基于中药粉体特征的粒子设计技术是改善、提升制剂质量的重要手段。对近年来粒子设计技... 中药固体制剂在中药剂型中累计占比超过50%,中药粉体是中药固体制剂的重要加工原料,其粉体学性质直接影响固体制剂的质量,乃至临床安全性及有效性。基于中药粉体特征的粒子设计技术是改善、提升制剂质量的重要手段。对近年来粒子设计技术的相关原理、方法、特点、分类、设备等要素进行综述,并对其在中药粉体领域应用过程中所存在的难点进行分析,同时结合计算机数据挖掘相关技术进展提出相应的解决策略,以期为粒子设计在中药粉体领域的适宜性应用提供参考。 展开更多
关键词 粒子设计 表面改性 粒子复合 中药粉体 数据挖掘
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HPLC法同时测定雪松果中槲皮素、山柰酚和异鼠李素的含量 被引量:9
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作者 张莉霞 刘东彦 +1 位作者 石晓峰 王斌利 《中华中医药杂志》 CAS CSCD 北大核心 2018年第4期1540-1542,共3页
目的:建立同时测定雪松果中槲皮素、山柰酚和异鼠李素含量的高效液相色谱(HPLC)法。方法:雪松果用60%甲醇回流提取,提取液加10%盐酸水解。采用Agilent TC-C18(250mm×4.6mm,5μm)色谱柱,流动相为[甲醇-0.1%磷酸(50∶50)]-[乙腈-0.1... 目的:建立同时测定雪松果中槲皮素、山柰酚和异鼠李素含量的高效液相色谱(HPLC)法。方法:雪松果用60%甲醇回流提取,提取液加10%盐酸水解。采用Agilent TC-C18(250mm×4.6mm,5μm)色谱柱,流动相为[甲醇-0.1%磷酸(50∶50)]-[乙腈-0.1%磷酸(40∶60)](80∶20),流速1.0m L/min,检测波长360nm,柱温为25℃。结果:雪松果中槲皮素和异鼠李素在0.2-2.4μg/m L、山柰酚在0.6-7.0μg/m L浓度范围内呈良好线性关系(r≥0.9991),加样回收率RSD(n=6)依次为2.86%、1.24%、1.61%。雪松果中槲皮素、山奈酚和异鼠李素的含量依次为0.054、0.301、0.161mg/g。结论:该方法简单、快速、高效,可用于雪松果中3个黄酮类化合物的含量测定。 展开更多
关键词 雪松果 黄酮类化合物 槲皮素 山柰酚 异鼠李素 含量测定 高效液相色谱法
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Progress in hepatitis B virus-related acute-on-chronic liver failure treatment in China:A large,multicenter,retrospective cohort study using a propensity score matching analysis 被引量:7
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作者 Lan-Lan Xiao Xiao-Xin Wu +5 位作者 Jia-Jia Chen dong yan dong-yan shi Jian-Rong Huang Xiao-Wei Xu Lan-Juan Li 《Hepatobiliary & Pancreatic Diseases International》 SCIE CAS CSCD 2021年第6期535-541,共7页
Background:Hepatitis B virus-related acute-on-chronic liver failure(HBV-ACLF)has a high short-term mortality.However,the treatment progression for HBV-ACLF in China in the past decade has not been well characterized.T... Background:Hepatitis B virus-related acute-on-chronic liver failure(HBV-ACLF)has a high short-term mortality.However,the treatment progression for HBV-ACLF in China in the past decade has not been well characterized.The present study aimed to determine whether the HBV-ACLF treatment has significantly improved during the past decade.Methods:This study retrospectively compared short-term(28/56 days)survival rates of two different nationwide cohorts(cohort I:2008-2011 and cohort II:2012-2015).Eligible HBV-ACLF patients were enrolled retrospectively.Patients in the cohorts I and II were assigned either to the standard medical therapy(SMT)group(cohort I-SMT,cohort II-SMT)or artificial liver support system(ALSS)group(cohort IALSS,cohort II-ALSS).Propensity score matching analysis was conducted to eliminate baseline differences,and multivariate logistic regression analysis was used to explore the independent factors for 28-day survival.Results:Short-term(28/56 days)survival rates were significantly higher in the ALSS group than those in the SMT group(P<0.05)and were higher in the cohort II than those in the cohort I(P<0.001).After propensity score matching,short-term(28/56 days)survival rates were higher in the cohort II than those in the cohort I for both SMT(60.7%vs.53.0%,50.0%vs.39.8%,P<0.05)and ALSS(66.1%vs.56.5%,53.0%vs.44.4%,P<0.05)treatments.The 28-day survival rate was higher in patients treated with nucleos(t)ide analogs than in patients without such treatments(P=0.046).Multivariate logistic regression analysis revealed that ALSS(OR=0.962,95%CI:0.951-0.973,P=0.038),nucleos(t)ide analogs(OR=0.927,95%CI:0.871-0.983,P=0.046),old age(OR=1.028,95%CI:1.015-1.041,P<0.001),total bilirubin(OR=1.002,95%CI:1.001-1.003,P=0.004),INR(OR=1.569,95%CI:1.044-2.358,P<0.001),COSSH-ACLF grade(OR=2.683,95%CI:1.792-4.017,P<0.001),and albumin(OR=0.952,95%CI:0.924-0.982,P=0.002)were independent factors for 28-day mortality.Conclusions:The treatment for patients with HBV-ACLF has improved in the past decade. 展开更多
关键词 Hepatitis B virus-related acute-on-chronic liver failure Propensity score matching analysis Short-term survival rate Standard medical therapy Artificial liver support system
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甘肃产不同品种松针的抗氧化活性研究
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作者 刘东彦 石晓峰 +2 位作者 王信 马趣环 沈薇 《林产工业》 北大核心 2024年第1期39-44,共6页
以甘肃产白皮松、雪松、油松、落叶松、樟子松和华山松6个树种的松针为研究对象,采用DPPH法、ABTS法和铜离子还原能力测定其不同浓度乙醇提取物的体外抗氧化活性,并采用熵值法综合评价遴选出抗氧化活性强的松针资源,为松针的进一步开发... 以甘肃产白皮松、雪松、油松、落叶松、樟子松和华山松6个树种的松针为研究对象,采用DPPH法、ABTS法和铜离子还原能力测定其不同浓度乙醇提取物的体外抗氧化活性,并采用熵值法综合评价遴选出抗氧化活性强的松针资源,为松针的进一步开发利用提供参考。研究表明:采用不同浓度乙醇提取时,40%乙醇提取物的抗氧化活性最好;不同品种松针中,雪松松针的抗氧化活性最好,其中天水产雪松松针40%乙醇提取物的评分最高达99.52%,表明其可以作为进一步研究松针抗衰老研究的资源。 展开更多
关键词 松针 不同浓度乙醇提取物 抗氧化活性 熵值法 综合评价
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Protective effect of DNA-mediated immunization with liposome-encapsulated GRA4 against infection of Toxoplasma gondii 被引量:6
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作者 Rui CHEN Shao-hong LU +5 位作者 Qun-bo TONG Di LOU dong-yan shi Bing-bing JIA Guo-ping HUANG Jin-fu WANG 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2009年第7期512-521,共10页
The dense granule protein 4 (GRA4) is a granular protein from Toxoplasma gondii, and is a candidate for vaccination against this parasite. In this study, the plasmid pcDNA3, 1-GRA4 (pGRA4), encoding for the GRA4 a... The dense granule protein 4 (GRA4) is a granular protein from Toxoplasma gondii, and is a candidate for vaccination against this parasite. In this study, the plasmid pcDNA3, 1-GRA4 (pGRA4), encoding for the GRA4 antigen, was incorporated by the dehydration-rehydration method into liposomes composed of 16 mmol/L egg phosphatidylcholine (PC), 8 mmol/L dioleoyl phosphatidylethanolamine (DOPE), and 4 mmol/L 1,2-diodeoyl-3-(trimethylammonium) propane (DOTAP). C57BL/6 mice and BALB/c mice were immunized intramuscularly three times with liposome-encapsulated pGRA4 to determine whether DNA immunization could elicit a protective immune response to T. gondii. Enzyme-linked immunosorbent assay (ELISA) of sera from immunized mice showed that liposome-encapsulated pGRA4 generated high levels of IgG antibodies to GRA4. Production of primary interferon (IFN)-7 and interleukin (IL)-2 in GRA4-stimulated splenocytes from vaccinated mice suggested a modulated Th 1-type response. 72.7% of C57BL/6 mice immunized with liposome-encapsulated pGRA4 survived the challenge with 80 tissue cysts of ME49 strain, whereas C57BL/6 mice immunized with pGRA4 had only a survival rate of 54.5%. When immunized BALB/c mice were intraperitoneally challenged with 103 tachyzoites of the highly virulent RH strain, the survival time of mice immunized with liposome-encapsulated pGRA4 was markedly longer than that of other groups. Our observations show that liposome-encapsulated pGRA4 enhanced the protective effect against infection of T. gondii. 展开更多
关键词 DNA vaccine Granule protein 4 (GRA4) LIPOSOME Toxoplasma gondii
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肝巨噬细胞与肝星状细胞交互作用对肝纤维化发生与逆转的影响 被引量:5
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作者 陶山 李倩 +5 位作者 陈阳 范妤 郭东艳 翟秉涛 史晓燕 段丽芳 《生命科学》 CSCD 北大核心 2021年第3期363-373,共11页
肝纤维化是由各种病因所导致的肝脏病理性反应,是发展成肝硬化甚至肝癌的必经途径。以往研究发现,肝纤维化甚至是肝硬化早期都可以通过一定的干预治疗抑制与逆转病情,该过程有多种肝实质以及非实质细胞参与,肝星状细胞(hepatic stellate... 肝纤维化是由各种病因所导致的肝脏病理性反应,是发展成肝硬化甚至肝癌的必经途径。以往研究发现,肝纤维化甚至是肝硬化早期都可以通过一定的干预治疗抑制与逆转病情,该过程有多种肝实质以及非实质细胞参与,肝星状细胞(hepatic stellate cell,HSC)与肝巨噬细胞是肝纤维化进程中关键的细胞类型。HSCs是肝纤维化的核心细胞,而肝巨噬细胞是肝纤维化进程中的主要调控细胞,HSCs与巨噬细胞间可通过分泌趋化因子、炎症因子以及凋亡因子诱导双方细胞的活化、分化、增殖和凋亡,并且能够调节细胞外基质(ECM)的生成与降解,进而影响肝纤维化的发生发展与抑制逆转。该文立足于HSCs与肝巨噬细胞的各自特征性功能,通过对它们之间的相互影响的阐述,探究两者在促进与逆转肝纤维化中的作用,以期探究肝纤维化复杂病理过程中的机制,为治疗逆转肝纤维化提供新的思路和有效靶点。 展开更多
关键词 肝纤维化 肝星状细胞 肝内巨噬细胞 相互作用 促进 逆转
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不同配伍配比对赤芍-当归药对中10个成分溶出量的影响研究 被引量:5
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作者 程江雪 唐志书 +4 位作者 郭东艳 史亚军 邹俊波 王晶 王鹏 《药物分析杂志》 CAS CSCD 北大核心 2019年第9期1597-1604,共8页
目的:建立赤芍-当归药对中没食子酸、氧化芍药苷、香草酸、芍药内酯苷、芍药苷、阿魏酸、1,2,3,4,6-O-五没食子酰葡萄糖、苯甲酰芍药苷、丹皮酚、藁本内酯10个成分的含量测定方法,考察不同配伍比例及配伍方式对赤芍-当归药对中10个主要... 目的:建立赤芍-当归药对中没食子酸、氧化芍药苷、香草酸、芍药内酯苷、芍药苷、阿魏酸、1,2,3,4,6-O-五没食子酰葡萄糖、苯甲酰芍药苷、丹皮酚、藁本内酯10个成分的含量测定方法,考察不同配伍比例及配伍方式对赤芍-当归药对中10个主要活性成分溶出量的影响。方法:采用Wonda Cract ODS-2色谱柱(4.6mm×250 mm,5μm),以乙腈-0.1%磷酸水溶液为流动相,梯度洗脱,流速1.0 mL·min-1,柱温25℃,变换波长检测赤芍-当归药对中10个成分,检测波长为210、230、260、274、275、325、350 nm。进一步测定赤芍-当归药对的单煎液、单煎合并液(1∶1)以及不同配比的合煎液(1∶1,1∶2,1∶3,2∶1,3∶1)中上述10个主要活性成分的含量。结果:没食子酸、氧化芍药苷、香草酸、芍药内酯苷、芍药苷、阿魏酸、1,2,3,4,6-O-五没食子酰葡萄糖、苯甲酰芍药苷、丹皮酚、藁本内酯质量浓度分别在1.49~74.50μg·m L-1(r=0.996 0)、2.88~144.00μg·m L-1(r=0.996 4)、2.96~147.99μg·m L-1(r=0.997 6)、2.94~147.00μg·m L-1(r=0.997 9)、2.99~149.50μg·m L-1(r=0.998 1)、2.24~111.99μg·m L-1(r=0.997 8)、3.01~150.50μg·m L-1(r=0.997 8)、2.98~148.99μg·m L-1(r=0.998 4)、2.79~139.50(r=0.997 3)、6.00~300.00(r=0.998 2)μg·m L-1范围内与峰面积呈良好的线性关系。精密度良好,RSD小于2.0%;回收率良好,3个加样浓度的平均回收率(n=9)为83.7%~100.4%,RSD为2.5%~7.2%。当赤芍-当归比例为2∶1时,各成分含量明显大于单煎液中含量,且多种成分在该比例中含量最高。当赤芍-当归比例为1∶1时,合煎液中含量较高的5个成分的溶出量明显多于单煎合并液。结论:本研究所建立的测定方法,结果可靠准确,操作简便,可用于赤芍-当归药对中10个成分的含量测定;赤芍-当归(2∶1)的配伍比例以及合煎的配伍方式有利于10个成分在水中的溶出。 展开更多
关键词 赤芍 当归 单煎 合并 合煎 高效液相色谱法 配伍 含量测定
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丹皮酚凝胶剂对角叉菜胶致大鼠足跖肿胀抗炎作用研究 被引量:4
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作者 李倩 范妤 +2 位作者 郭东艳 史晓燕 段丽芳 《中南药学》 CAS 2020年第11期1842-1845,共4页
目的观察丹皮酚凝胶剂外用给药对角叉菜胶致大鼠足跖肿胀抗炎作用的影响,并初步探讨其作用机制。方法制备丹皮酚凝胶,并在(25±1)℃条件下储存21 d检测其物理稳定性。48只SD雄性大鼠随机分为空白组,模型组,复方醋酸地塞米松乳膏对照... 目的观察丹皮酚凝胶剂外用给药对角叉菜胶致大鼠足跖肿胀抗炎作用的影响,并初步探讨其作用机制。方法制备丹皮酚凝胶,并在(25±1)℃条件下储存21 d检测其物理稳定性。48只SD雄性大鼠随机分为空白组,模型组,复方醋酸地塞米松乳膏对照组(醋酸地塞米松15 mg·mg^-1),丹皮酚凝胶高、中、低剂量组(12,6,3 mg·mL^-1)。除空白组和模型组外,其余各组取0.1 g丹皮酚凝胶均匀涂抹于大鼠左侧后足处,并用胶布固定,1次·d^-1,连续给药7 d。末次给药1 h后,除空白组外,其余各组于左后足跖皮下注射1%角叉菜胶溶液0.1 mL,3 h后处死大鼠。排水法测量足跖容积计算足肿胀度;计算脾指数、胸腺指数;检测血清中SOD活性、MDA含量;ELISA法检测足跖皮下组织中IL-1β、IL-6、TNF-α、PGE2的含量。结果与模型组比较,丹皮酚凝胶高、中剂量组能够减轻足肿胀程度(P<0.05 或P<0.01);脾指数和胸腺指数降低(P<0.05);血清中SOD活性显著升高(P<0.01),MDA含量显著降低(P<0.01);足跖皮下组织中IL-1β、TNF-α、PGE2的含量降低(P<0.05或P<0.01);丹皮酚凝胶高剂量组IL-6的含量降低(P<0.05)。结论丹皮酚凝胶可显著改善角叉菜胶诱导的足肿胀程度,其作用机制可能与清除自由基、减轻脂质过氧化损伤,抑制炎症局部组织中炎症因子的合成与释放密切相关。 展开更多
关键词 丹皮酚凝胶剂 抗炎 抗氧化
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太白楤木总皂苷对H_(2)O_(2)诱导LO_(2)细胞损伤的修复作用及机制研究
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作者 任思思 李倩 +5 位作者 陶山 范妤 郭东艳 程江雪 史晓燕 段丽芳 《中国新药与临床杂志》 CAS CSCD 北大核心 2023年第9期593-600,共8页
目的观察太白楤木总皂苷(TSAT)对H_(2)O_(2)诱导的LO_(2)细胞损伤的修复作用,并探讨其作用机制。方法将培养的LO_(2)细胞分为对照组、H_(2)O_(2)模型组和TSAT不同浓度处理组,通过MTT法进行TSAT浓度筛选,检测TSAT对LO_(2)细胞增殖的影响... 目的观察太白楤木总皂苷(TSAT)对H_(2)O_(2)诱导的LO_(2)细胞损伤的修复作用,并探讨其作用机制。方法将培养的LO_(2)细胞分为对照组、H_(2)O_(2)模型组和TSAT不同浓度处理组,通过MTT法进行TSAT浓度筛选,检测TSAT对LO_(2)细胞增殖的影响,倒置显微镜下观察LO_(2)细胞形态变化,检测TSAT对LO_(2)细胞丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)、超氧化物歧化酶(SOD)、谷胱甘肽(GSH)、丙二醛(MDA)和乳酸脱氢酶(LDH)水平的影响,Hoechst染色观察LO_(2)细胞核改变,流式细胞术检测凋亡率,Western blot法检测凋亡蛋白Bcl-2、Bax、caspase 9和caspase 3的表达。结果当TSAT浓度小于20μg·mL^(-1)时对细胞具有保护作用,选用10、15、20μg·mL^(-1)TSAT进行后续实验。与对照组相比,H_(2)O_(2)模型组LO_(2)细胞存活率明显下降(P<0.01),ALT、AST及MDA、LDH水平显著升高(P<0.05),SOD、GSH水平降低(P<0.05);给予10、15、20μg·mL^(-1)TSAT干预后,LO_(2)细胞存活率显著增加,ALT、AST及MDA、LDH水平下降,SOD、GSH水平增高,与H_(2)O_(2)模型组具有显著差异(P<0.05)。TSAT处理后核内染色质碎裂的细胞数量显著减少。10、20μg·mL^(-1)TSAT组与H_(2)O_(2)模型组相比,LO_(2)细胞中Bcl-2表达增加,Bcl-2/Bax比值升高(P<0.05)。TSAT各浓度组均可降低LO_(2)细胞caspase 9与caspase 3的蛋白表达(P<0.05)。结论TSAT对H_(2)O_(2)诱导的LO_(2)细胞损伤具有一定的保护和修复作用,其作用机制可能与TSAT调控线粒体凋亡途径抑制细胞凋亡有关。 展开更多
关键词 太白楤木 皂苷类 氧化应激 细胞凋亡 线粒体
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Systematic evaluation and meta-analysis of the efficacy and safety of cinobufagin injection combined with western medicine in the treatment of liver cancer
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作者 REN Si-si FAN Yu +4 位作者 GUO dong-yan ZHAI Bing-tao LI Jing-tao shi Xiao-yan DUAN Li-fang 《Journal of Hainan Medical University》 CAS 2023年第6期51-61,共11页
Objective:To evaluate the clinical efficacy and safety of cinobufagin injection in the treatment of liver cancer.Methods:PubMed database,Embase database and Cochrane Library database,CNKI,Wanfang database,VIP database... Objective:To evaluate the clinical efficacy and safety of cinobufagin injection in the treatment of liver cancer.Methods:PubMed database,Embase database and Cochrane Library database,CNKI,Wanfang database,VIP database and Sinomed database were used to search for the randomized controlled trials of cinobufagin injection combined with Western medicine in the treatment of primary liver cancer.The retrieval time was from the establishment to December 15,2020.Two independent researchers conducted systematic screening,literature inclusion and quality assessment of the articles according to the inclusion criteria,respectively.Meta-analysis of the data was performed using RevMan 5.4 software.Results:A total of 30 studies with a total of 2355 patients were included.Compared with conventional western medicine treatment,the clinical effective rate of Hububutin injection combined with western medicine was significantly higher[RR=1.16,95%CI=(1.11,1.22),P<0.00001].It could effectively reduce the tumor size[RR=1.33,95%CI=(1.17,1.51),P<0.00001],prolong the survival time of patients[RR=1.41,95%CI=(1.31,1.52),P<0.00001],improve the quality of life[RR=1.37,95%CI=(1.19,1.57),P<0.00001],improve the liver function of patients[RR=-14.52,95%CI=(-16.15,-12.88),P<0.00001],and reduce the occurrence of adverse reactions[RR=0.94,95%CI=(0.85,1.42),P=0.25]such as bone marrow suppression[RR=0.44,95%CI=(0.31,0.62),P<0.00001].Conclusion:Cinobufagin injection combined with western medicine therapy can effectively improve the clinical symptoms of primary liver cancer,and the safety is good.However,the methodological quality of the included literature is low,which affects the objectivity of the outcome,and it still needs to be verified by multi-sample,multi-center,randomized double-blind controlled trial. 展开更多
关键词 Cinobufagin injection Primary liver cancer META-ANALYSIS EFFECTIVENESS SECURITY
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Preclinical transplantation and safety of HS/PCs expanded from human umbilical cord blood 被引量:4
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作者 Chun-Juan Guo Ying Gao +5 位作者 Di Hou dong-yan shi Xiang-Min Tong Dan Shen Yong-Mei Xi Jin-Fu Wang 《World Journal of Stem Cells》 2011年第5期43-52,共10页
AIM: To expand hematopoietic/progenitor stem cells (HS/PCs) from umbilical cord blood (UCB) and prepare the HS/PC product, and analyze preclinical transplantation and safety of HS/PC product. METHODS: Human bone marr... AIM: To expand hematopoietic/progenitor stem cells (HS/PCs) from umbilical cord blood (UCB) and prepare the HS/PC product, and analyze preclinical transplantation and safety of HS/PC product. METHODS: Human bone marrow-derived mesenchymal stem cells (MSCs) were used as feeder cells to expand HS/PCs from UCB in a serum-free culture system. The proliferation potential of HS/PCs was analyzed. The expanded HS/PCs were suspended in the L-15 medium to prepare the HS/PC product. The contamination of bacteria, fungi and mycoplasmas, the infection of exogenous virus, the concentration of bacterial endotoxin, and the SCF residual in HS/PC product were determined. Finally, cells from the HS/PC product with or without bone marrow-derived mesenchymal stem cells (BM-MSCs) were transplanted into the irradiated NOD/SCID mice to determine the in vivo engraftment potential. RESULTS: After co-culture for 10 d, the total nuclear cells (TNCs) increased 125-fold, and CD34 + cells increased 43-fold. The granulocyte-macrophage colonyforming cells (GM-CFCs) and erythroid colony-forming cells (E-CFCs) increased 3.3and 4.7-fold respectively. The expanded cells were collected and prepared as the expanded product of HS/PCs by re-suspending cells in L-15 medium. For preclinical safety, the HS/PC product was analysed for contamination by bacteria, fungi and mycoplasmas, the bacterial endotoxin concentration and the SCF content. The results showed that the HS/PC product contained no bacteria, fungi or mycoplasmas. The bacterial endotoxin concentration was less than the detection limit of 6 EU/mL, and residual SCF was 75 pg/mL. Based on clinical safety, the HS/PC product was qualified for clinical transplantation. Finally, the HS/PC product was transplanted the irradiated mice where it resulted in rapid engraftment of hematopoietic cells. CONCLUSION: HSPC product prepared from UCB in the serum-free culture system with hMSCs as feeder cells should be clinically safe and effective for clinical transplantation. 展开更多
关键词 HEMATOPOIETIC stem cells EX VIVO expansion PRECLINICAL safeties TRANSPLANTATION
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Annexin A2 silencing enhances apoptosis of human umbilical vein endothelial cells in vitro 被引量:4
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作者 Shu-Le Jiang dong-yan Pan +2 位作者 Chao Gu Hai-Feng Qin shi-Hong Zhao 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2015年第11期929-933,共5页
Objective:To study the effects of inhibited Annexin A2(ANXA2) on human umbilical vein endothelial cells(HUVECs) in vitro.Methods:Short hairpin RNA(shRNA) targeting ANXA2 was designed and cloned into double marked lent... Objective:To study the effects of inhibited Annexin A2(ANXA2) on human umbilical vein endothelial cells(HUVECs) in vitro.Methods:Short hairpin RNA(shRNA) targeting ANXA2 was designed and cloned into double marked lentvirial vector GV248 for RNAi to generate the recombinant expression plasmids,which were stably transfected into HUVECs.The protein and mRNA expression levels of ANXA2 were analyzed by western blotting and realtime polymerase chain reaction,respectively.Cell proliferation(cell counting kit-8 assay),apoptosis(flow cytometry analysis),the expression(western blotting) and the activity of easpases(enzyme-linked immunosorbent assay) were used to assess the effects of silencing ANXA2 on HUVECs in vitro.Results:The plasmids to express ANXA2-specific shRNA were constructed and were infected into HUVEC resulting in the stably transfected experimental(ANXA2-shRNA),control(eontrol-shRNA) and mock(no plasmid) cell lines,which were verified with western blot and real-time PCR.HUVEC/ANXA2-shRNA showed an inhibition rate 91.89%of ANXA2 expression compared to the mock HUVEC.ANXA2 silencing cell strain obviously presented a lower cell proliferation activity compared to the control and mock HUVECs,with an inhibition rate 82.35%on day 7 in vitro.FACS analysis indicated that the HUVEC/ANXA2-shRNA cells undergoing apoptosis increased by 102.61%compared to the mock HUVECs(P<0.01).Moreover,the activity levels of caspase-3,caspase-8 and caspase-9in HUVEC/ANXA2-shRNA cells were increased and the activated cleaved caspase-3,cleaved Caspase-8 and cleaved caspase-9 were upregulated evidently compared with that of the control and mock HUVECs by 56.29%,89.59%and 144.58%(P<0.01).Conclusions:shRNAmediated silencing of ANX A2 could not only be able to suppress HUVECs:proliferation but to upregulate the enzyme activity of easpases,which bring to an increase of cell apoptosis This work suggested that ANX A2 may represent a useful target of future molecular therapies. 展开更多
关键词 RETINAL NEOVASCULARIZATION ANNEXIN A2 RNA interfer
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Exploring the scientific rationality of“Different dosage forms of the same prescription”base on Q-markers of pulvis and pill of Chuanxiong Chatiao Prescription
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作者 Ying Liu Xiao-Fei Zhang +3 位作者 dong-yan Guo Bing-Tao Zhai Jun-Bo Zou Ya-Jun shi 《TMR Modern Herbal Medicine》 2023年第3期10-24,共15页
Objective:To predict and analyze the potential Q-markers of Chuanxiong Chatiao Prescription,and the pharmacokinetic properties of pulvis and pills in vivo were studied,which provided a basis for the rational evaluatio... Objective:To predict and analyze the potential Q-markers of Chuanxiong Chatiao Prescription,and the pharmacokinetic properties of pulvis and pills in vivo were studied,which provided a basis for the rational evaluation of the phenomenon of“Different Dosage Forms of the Same Prescription”.Methods and Material:Q-markers analysis of Chuanxiong Chatiao Prescription based on the“Five Principles”(traceability and transmissibility,specificity,effectiveness,prescription compatibility and testability).The content determination method of Q-markers in Chuanxiong Chatiao Prescription was established by UPLC,and the content difference of Q-markers in the two dosage forms ware determined and compared.The Q-markers in rabbit plasma was determined by LC-MS/MS method,and the pharmacokinetic parameters of Q-markers in pulvis and pills were analyzed.Results:A total of 16 potential Q-markers from the“Five Principles”were used,nine components of tetramethylprazine,ferulic acid,glycyrrhizin,glycyrrhizic acid,luteolin,cimicifugoside,senkyunolideⅠ,isoimperatorin,nodakenin were identified as Q-markers of Chuanxiong Chatiao Presciption.The content of tetramethylprazine and other components in the pulvis form was found to be significantly higher than that in the pills,while the content of senkyunolideⅠwas lower than that in the pills,which may be related to the preparation process of the dosage form and the physicochemical properties of the components.Compared with pulvis,the Tmax and t_(1/2)of ferulic acid and other components in pills were significantly prolonged.To a certain extent,it can explain the classical theory of traditional Chinese medicine“Components in pulvis release quickly and take effect in fast-acting manner,while in pills release slowly and take effect in slow-acting”.Meanwhile,the Cmax and AUC0-t of tetramethylprazine and other components in pills were higher than those in pulvis,which showed unexpected pharmacokinetic characteristics,indicating the complexity of compounding and the importance of dosa 展开更多
关键词 Chuanxiong Chatiao Prescription Q-marker different doses forms of the same presciption PHARMACOKINETICS pulvis PILL
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HPLC法同时测定不同品种、产地、部位松树中莽草酸的含量
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作者 刘东彦 石晓峰 +3 位作者 王信 王新娣 马趣环 张家旭 《林产工业》 北大核心 2023年第9期39-43,共5页
研究采用HPLC法同时测定不同品种、产地、部位松树中莽草酸的含量,以期为开发莽草酸资源提供参考。色谱柱为Agilent Eclipse Plus C_(18)(250 mm×4.6 mm,5 m),流动相为甲醇/0.1%磷酸水溶液(体积比为10∶90),检测波长为217 nm,柱温... 研究采用HPLC法同时测定不同品种、产地、部位松树中莽草酸的含量,以期为开发莽草酸资源提供参考。色谱柱为Agilent Eclipse Plus C_(18)(250 mm×4.6 mm,5 m),流动相为甲醇/0.1%磷酸水溶液(体积比为10∶90),检测波长为217 nm,柱温为30℃。采用直观分析结合聚类分析对不同品种、产地、部位松树中莽草酸含量的差异性进行统计分析。结果表明:莽草酸的线性关系良好(r=0.9995),平均加样回收率为100.4%(n=6),RSD为1.71%。6种松树中的莽草酸含量由高到低依次为雪松、华山松、白皮松、油松、樟子松、落叶松。其中,天水雪松松针中的莽草酸含量最高,达31.47 mg/g。通过聚类分析发现,6种松树中的莽草酸可划分为3类。 展开更多
关键词 松针 松枝 莽草酸 含量测定 聚类分析
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