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电子垃圾拆解区铅污染对赤子爱胜蚓(Eisenia foetida)的毒性效应
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作者 曾旋 陈玉珍 +5 位作者 吴佳莉 朱佳雯 吴启航 刘至能 李书慧 杨群华 《山东化工》 CAS 2024年第13期244-247,共4页
以赤子爱胜蚓(Eisenia foetida)为受试生物,研究不同质量浓度(0,100,250,500,1000和2500 mg/kg)铅土对蚯蚓存活率、生长抑制率以及体内抗氧化酶(POD酶、CAT酶、GST酶)和消化酶(ACP酶、AKP酶)活性的影响。试验结果表明:7 d急性暴露试验中... 以赤子爱胜蚓(Eisenia foetida)为受试生物,研究不同质量浓度(0,100,250,500,1000和2500 mg/kg)铅土对蚯蚓存活率、生长抑制率以及体内抗氧化酶(POD酶、CAT酶、GST酶)和消化酶(ACP酶、AKP酶)活性的影响。试验结果表明:7 d急性暴露试验中,各浓度铅污染对蚯蚓存活与生长均不存在显著性影响;14 d生长试验中,w(Pb(NO_(3))_(2))为2500 mg/kg时,铅对赤子爱胜蚓的生长产生了显著的抑制作用;在7 d和14 d生长试验中,暴露浓度和暴露天数在对赤子爱胜蚓的生长抑制率的影响中的交互作用较显著;14 d暴露试验中,w(Pb(NO_(3))_(2))为1000和2500 mg/kg时,重金属铅对赤子爱胜蚓体内两种消化酶(ACP酶、AKP酶)和三种抗氧化酶(POD酶、CAT酶、GST酶)均产生了显著的抑制作用。本研究从个体水平到分子水平综合评价了铅对蚯蚓的毒性作用,为电子垃圾拆解区的土壤铅污染监测提供新的理论基础。 展开更多
关键词 赤子爱胜蚓 急性毒性 抗氧化酶 消化酶
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Evaluation of Acute and Sub-Acute Oral Toxicities of Momordica foetida Schumach. (Cucurbitaceae) Leaves Methanol Extract in Wistar Rats
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作者 Cedric Laurel Cidjeu Pouaha Landry Lienou Lienou +6 位作者 Fabrice Fabien Dongho Dongmo Colette Elysée Aboudi Etono Raphael Tchientcheu Azaber Masoohe Mamoune Sandrine Suzanne Beack Bayengue Rebecca Madeleine Ebelle Etame Rosalie Anne Ngono Ngane 《Journal of Biosciences and Medicines》 CAS 2023年第1期123-142,共20页
Momordica foetida is a plant widely used in tropical Africa to manage gastroenteric diseases. Previous studies demonstrated interesting antibacterial activity against human pathogenic bacteria. However, the security o... Momordica foetida is a plant widely used in tropical Africa to manage gastroenteric diseases. Previous studies demonstrated interesting antibacterial activity against human pathogenic bacteria. However, the security or toxicity of methanol leaf extract has not been determined yet. The aim of this study was to evaluate the acute and sub-acute toxicity of the leaf extract of Momordica foetida. In the acute toxicity study, a single oral dose of 5000 mg/kg body weight was administered to rats which were observed for 14 days in order to identify signs of toxicity or death. In the sub-acute toxicity, the animals were treated with 250, 500 and 1000 mg/kg of the extract for 28 consecutive days. Body weights and behavior were noted throughout the experiment. Upon treatment, blood and urine were collected for hematological and biochemical analysis. Liver, lungs, heart, kidneys, testes and ovaries were analyzed for relative weights and histopathology. The acute toxicity study of M. foetida leaf extract revealed no signs of toxicity related to the treatment, indicating that the median-lethal-dose (LD50) value is greater than 5000 mg/Kg of body weight. In the sub-acute toxicity assay, the extract did not affect the general behavior of animals, meanwhile, it led to a significant increase in the levels of red blood cells, platelets, hemoglobin, granulocytes and Mid-Cells (MIDs). Biochemical parameters showed an increase in total cholesterol, HDL cholesterol, serum urea, serum and urinary glucose and a decrease in urinary proteins, serum creatinine, urinary urea levels, serum activities of AST, ALT and proteins levels, as well as increases in lung, spleen and ovaries relative weight were noticed, all compared to control animals. Histological analysis revealed a normal architecture of kidneys, liver, heart, lung, ovaries and testes. This study provides valuable data on the safety of per os administration of Momordica foetida leaf methanol extract that could be very useful for future assays. 展开更多
关键词 Momordica foetida Acute Toxicity Sub-Acute Toxicity Biochemical Parameters Hematological Parameters
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Overview of Pharmaceutical Research on Passiflora foetida L. 被引量:1
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作者 张月 张小伟 +6 位作者 司珂瑜 胡家华 宇磊 陈洪卫 李洪珠 巩江 倪士峰 《Agricultural Science & Technology》 CAS 2014年第7期1113-1116,共4页
Based on extensive literature search,the composition,pharmacology,clini cal applications of Passiflora foetida L,ecological characteristics were summarized with the aim to provide scientific data for further research ... Based on extensive literature search,the composition,pharmacology,clini cal applications of Passiflora foetida L,ecological characteristics were summarized with the aim to provide scientific data for further research and exploitation. 展开更多
关键词 Passiflora foetida L. COMPOSITION PHARMACOLOGY Clinical applications Reprehensive dietary Ecological characteristics
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毒死蜱、马拉硫磷和氰戊菊酯对赤子爱胜蚓(Eisenia foetida)的急性毒性 被引量:17
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作者 刘伟 朱鲁生 +2 位作者 王军 谢慧 王金花 《生态毒理学报》 CAS CSCD 2009年第4期597-601,共5页
采用滤纸接触法和土壤培养法研究了毒死蜱(Chlorpyrifos)、马拉硫磷(Malathion)和氰戊菊酯(Fenvalerate)对赤子爱胜蚓(Eisenia foetida)的急性毒性效应.滤纸接触法试验浓度分别设置为,毒死蜱:3.14、6.28、9.42、12.56、15.70、18.84μg&... 采用滤纸接触法和土壤培养法研究了毒死蜱(Chlorpyrifos)、马拉硫磷(Malathion)和氰戊菊酯(Fenvalerate)对赤子爱胜蚓(Eisenia foetida)的急性毒性效应.滤纸接触法试验浓度分别设置为,毒死蜱:3.14、6.28、9.42、12.56、15.70、18.84μg·cm-2;马拉硫磷:3.10、6.20、12.40、18.60、24.80、31.40μg·cm-2;氰戊菊酯:0.31、0.62、1.24、1.86、2.48、3.14μg·cm-2.土壤培养法试验浓度分别设置为,毒死蜱:100、125、150、175、200、225、250mg·kg-1;马拉硫磷:350、400、450、500、550、600mg·kg-1;氰戊菊酯:20、30、40、50、60、70、80mg·kg-1.结果表明:采用滤纸接触法测得的各农药对蚯蚓48h的半数致死浓度(LC50)分别为毒死蜱12.26μg·cm-2、马拉硫磷19.61μg·cm-2、氰戊菊酯1.03μg·cm-2;采用土壤培养法测得的各农药对蚯蚓7d的LC50分别为毒死蜱427.67mg·kg-1、马拉硫磷742.53mg·kg-1、氰戊菊酯81.81mg·kg-1,14d的LC50分别为毒死蜱182.21mg·kg-1、马拉硫磷497.29mg·kg-1、氰戊菊酯37.46mg·kg-1.根据《化学农药环境安全评价试验准则》,这3种农药对蚯蚓的毒性均为低毒级. 展开更多
关键词 毒死蜱 马拉硫磷 氰戊菊酯 赤子爱胜蚓 急性毒性
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10种常用农药对赤子爱胜蚓(Eisenia foetida)的急性毒性效应 被引量:9
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作者 赵学平 王彦华 +5 位作者 吴声敢 俞瑞鲜 吴长兴 陈丽萍 苍涛 王强 《生态毒理学报》 CAS CSCD 2011年第4期435-440,共6页
为了评价农药对土壤无脊椎动物种群的生态风险,采用OECD标准滤纸法和人工土壤法测定了10种常用农药对蚯蚓(Eisenia foetida)的急性毒性效应。采用滤纸法,48h测定结果表明,4种氨基甲酸酯类(异丙威、甲萘威、速灭威和丁硫克百威)和2种有... 为了评价农药对土壤无脊椎动物种群的生态风险,采用OECD标准滤纸法和人工土壤法测定了10种常用农药对蚯蚓(Eisenia foetida)的急性毒性效应。采用滤纸法,48h测定结果表明,4种氨基甲酸酯类(异丙威、甲萘威、速灭威和丁硫克百威)和2种有机磷类(毒死蜱和哒嗪硫磷)农药对蚯蚓的急性毒性(其LC50值为3.50(2.77~4.44)~72.42(59.58~88.05)μg·cm-2)明显高于3种昆虫生长调节剂(噻嗪酮、虫酰肼和呋喃虫酰肼)和吡蚜酮对蚯蚓的急性毒性(其LC50值>629.1μg·cm-2)。采用人工土壤法,14d测定结果表明,上述4种氨基甲酸酯类农药对蚯蚓的急性毒性(其LC50值为59.61(55.13~64.44)~134.1(127.0~141.5)mg·kg-1)明显高于上述2种有机磷类农药和其他农药对蚯蚓的急性毒性(其LC50值为193.0(180.1~206.8)~386.4(359.7~414.2)mg·kg-1)。上述结果表明,不同类型的农药对蚯蚓的毒性存在较大差异,且同一类型的不同农药品种对蚯蚓的毒性也存在较大差异。总体来看,氨基甲酸酯类农药比其他类型的农药对蚯蚓具有更高的毒性。根据《化学农药环境安全评价试验准则》,本研究采用人工土壤法测定的所有农药对蚯蚓均为低毒级。 展开更多
关键词 有机磷类农药 氨基甲酸酯类农药 赤子爱胜蚓 急性毒性
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纳米ZnO与TiO_2对赤子爱胜蚓(Eisenia foetida)的毒性效应 被引量:6
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作者 胡长伟 崔益斌 +3 位作者 李丁生 高香玉 杨柳燕 李梅 《生态毒理学报》 CAS CSCD 2011年第2期200-206,共7页
以赤子爱胜蚓(Eisenia foetida)为受试生物,研究纳米TiO2与ZnO两种纳米颗粒的毒理学效应及环境释放风险。实验采用滤纸法(浓度组:0、0.15、0.75、1.5和3.0mg.cm-2)和溶液法(浓度组:0、10、50和100mg·mL-1),染毒时间为48h,以抗氧化... 以赤子爱胜蚓(Eisenia foetida)为受试生物,研究纳米TiO2与ZnO两种纳米颗粒的毒理学效应及环境释放风险。实验采用滤纸法(浓度组:0、0.15、0.75、1.5和3.0mg.cm-2)和溶液法(浓度组:0、10、50和100mg·mL-1),染毒时间为48h,以抗氧化系统的响应和DNA损伤作为毒理效应的评价指标。结果表明:0-3.0mg.cm-2浓度范围内,纳米颗粒以滤纸法染毒48h未引起蚯蚓死亡;浓度为1.5mg.cm-2的纳米ZnO处理后,蚯蚓体内丙二醛(MDA)含量和谷胱甘肽过氧化物酶(GPX)活性较空白组显著上升(p<0.05),分别升高58.25%和43.30%;而对于TiO2处理组,过氧化氢酶(CAT)与GPX活性和MDA含量均出现低浓度促进和高浓度抑制的现象。溶液法中,经浓度为0-100mg·mL-1的TiO2或ZnO处理后,MDA和各抗氧化酶活性未出现明显的变化趋势(p>0.05),但彗星实验结果发现,分别以100mg·mL-1的TiO2和ZnO染毒48h,蚯蚓均出现明显DNA损伤。实验结果说明:纳米TiO2与ZnO在较低浓度下对蚯蚓无明显毒性效应;在溶液法最高的实验浓度(100mg·mL-1)下,纳米ZnO对蚯蚓产生一定程度的毒性;DNA损伤可作为检测环境中纳米污染物对蚯蚓胁迫程度较为灵敏的指标。 展开更多
关键词 纳米材料 赤子爱胜蚓 毒性 抗氧化 DNA损伤
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农药助剂对蚯蚓(Eisenia foetida)的急性毒性 被引量:3
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作者 张灿光 杜军辉 +2 位作者 李华 李北兴 刘峰 《生态毒理学报》 CAS CSCD 北大核心 2014年第3期593-602,共10页
为评价农药助剂对土壤生物的毒性效应,分别采用滤纸接触法和人工土壤法测定了不同类别农药助剂对赤子爱胜蚓(Eisenia foetida)的急性毒性。结果表明:19种非离子表面活性剂中,烷基酚聚氧乙烯醚与脂肪醇聚氧乙烯醚毒性较高,滤纸法48 h-... 为评价农药助剂对土壤生物的毒性效应,分别采用滤纸接触法和人工土壤法测定了不同类别农药助剂对赤子爱胜蚓(Eisenia foetida)的急性毒性。结果表明:19种非离子表面活性剂中,烷基酚聚氧乙烯醚与脂肪醇聚氧乙烯醚毒性较高,滤纸法48 h-LC50为7.630~39.65μg·cm-2,人工土壤法14 d-LC50为876.5~2 786.6 mg·kg-1,其它类型非离子表面活性剂毒性较低。5种阴离子表面活性剂中,十二烷基硫酸钠、十二烷基苯磺酸钙毒性高于木质素磺酸钠、木质素磺酸钙、亚甲基双萘磺酸钠,滤纸法48 h-LC50为6.575~41.89μg·cm-2,人工土壤法14 d-LC50为1 195.0~1 911.7 mg·kg-1。13种溶剂中,二甲苯、乙苯、甲苯、正丁醇、环己酮表现出较高的毒性,滤纸法48 h-LC50为6.587~57.62μg·cm-2,密封人工土壤法48 h-LC50为181.9~781.5 mg·kg-1。采用两种方法测得的5种填料高岭土、白炭黑、硅藻土、凹凸棒土和轻质碳酸钙的毒性均较低。采用两种方法测得的毒性系统偏差接近,重现性均较好,并且滤纸接触法测得的毒力高于人工土壤法。 展开更多
关键词 表面活性剂 溶剂 填料 蚯蚓 急性毒性
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壬基酚聚氧乙烯醚暴露下赤子爱胜蚓(Eisenia foetida)的生理损伤 被引量:3
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作者 卜元卿 单正军 +2 位作者 智勇 张凯 姜锦林 《生态与农村环境学报》 CAS CSSCI CSCD 北大核心 2013年第6期749-754,共6页
利用急性接触试验和人工土壤试验分别研究了壬基酚聚氧乙烯醚(NPEO)对赤子爱胜蚓(Eisenia foetida)的致死性和氧化损伤。急性接触试验结果显示,NPEO对赤子爱胜蚓的48 h毒性半致死剂量ρ(48 h,LD50)为0.58 mg·L-1;人工土壤试验结果... 利用急性接触试验和人工土壤试验分别研究了壬基酚聚氧乙烯醚(NPEO)对赤子爱胜蚓(Eisenia foetida)的致死性和氧化损伤。急性接触试验结果显示,NPEO对赤子爱胜蚓的48 h毒性半致死剂量ρ(48 h,LD50)为0.58 mg·L-1;人工土壤试验结果显示,NPEO可诱导赤子爱胜蚓CAT酶活力、GST酶活力、GSH含量和氧化产物(MDA)含量上升,暴露28 d时,NPEO浓度与赤子爱胜蚓CAT酶活力、GST酶活力、GSH含量和MDA含量呈正相关,且均存在显著的剂量-效应关系(P<0.05),NPEO剂量增加对赤子爱胜蚓SOD酶活性和Cu-Zn SOD酶活性有轻微抑制作用。以上结果表明NPEO在亚致死暴露浓度下(<0.50 mg·kg-1)会对赤子爱胜蚓产生生理胁迫并导致一定程度的氧化损伤。 展开更多
关键词 壬基酚聚氧乙烯醚(NPEO) 赤子爱胜蚓 急性毒性 生理损伤
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Analgesic and anti-inflammatory activities of Passiflora foetida L. 被引量:7
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作者 Sasikala V Saravanan S Parimelazhagan T 《Asian Pacific Journal of Tropical Medicine》 SCIE CAS 2011年第8期600-603,共4页
Objective:To investigate the analgesic and anti-inflammatory activities of ethanol extract of Passiflora foetida(P.foetida) leaves.Methods:Ethanol extract of P.foetida leaf was evaluated for analgesic action by acetic... Objective:To investigate the analgesic and anti-inflammatory activities of ethanol extract of Passiflora foetida(P.foetida) leaves.Methods:Ethanol extract of P.foetida leaf was evaluated for analgesic action by acetic acid-induced writhing and hot plate method in albino mice.The anti-inflammatory property of ethanolic leaf extract was tested by carrageenan induced acute paw edema and histamine induced acute paw edema in rats.Results:The dose 200 mg/kg of P. foetida leaf extract exhibited highest significant analgesic activity[(13.50±0.43) min]at a reaction time of 20 min in hot plate method in mice.The ethanol extract of leaf dose 100 mg/kg produced a highly significant anti inflammatory effect[(1.302±0.079) mL]in rats.Conclusions:It is very clear that P.foetida also has analgesic and anti-inflammatory activities for the pharmaceuticals. 展开更多
关键词 PASSIFLORA foetida CARRAGEENAN HISTAMINE ANALGESIC ANTI-INFLAMMATORY
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HPLC analysis of camptothecin content in various parts of Nothapodytes foetida collected on different periods 被引量:2
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作者 AG Namdeo A Sharma 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2012年第5期389-393,共5页
Objective:To investigate the content of topoisomerase I-DNA inhibitor alkaloid camptothecin(CPT) from various parts of Nothapodytes foetida(N.foetida) collected from the month of October to February.Methods:The conten... Objective:To investigate the content of topoisomerase I-DNA inhibitor alkaloid camptothecin(CPT) from various parts of Nothapodytes foetida(N.foetida) collected from the month of October to February.Methods:The content of CPT was quantified in the methanolic extract of various parts of N.foetida using high performance liquid chromatography(UPLC).Quantification was performed with the regression analysis and the method was validated as per ICH guidelines. Results:The results revealed that maximum concentrations of camptothecin were found in root(2.62%) collected in the month of February followed by fruits(January,1.22%),stem(January,0.81%) and leaves(February,0.70%).Roots were found to have 3-fold higher concentration of CPT than the leaves and stem,while the fruits showed 2-fold higher concentration.Maximum concentration of camptothecin in fruits was observed in month of January,when they were not fully mature, which was 2-fold higher than that of young and fully mature fruits.Conclusions:These findings indicate that the synthesis of CPT differs in different parts of N.foetida and the content varies periodically. 展开更多
关键词 CAMPTOTHECIN HPLC Nothapodytes foetida ICACINACEAE
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Cytotoxic Cycloartane Triterpenoid Saponins from the Rhizomes of Cimicifuga foetida 被引量:6
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作者 Jing Lu Xing‑Rong Peng +2 位作者 Da‑Shan Li Qiang‑Qiang Shi Ming‑Hua Qiu 《Natural Products and Bioprospecting》 CAS 2019年第4期303-310,共8页
To enrich the bioactive cycloartane triterpenoid glycoside named actein and find out more cytotoxic cycloartane triterpenes,a phytochemical study of Cimicifuga foetida was conducted.113 g(0.17%)actein was purified by ... To enrich the bioactive cycloartane triterpenoid glycoside named actein and find out more cytotoxic cycloartane triterpenes,a phytochemical study of Cimicifuga foetida was conducted.113 g(0.17%)actein was purified by recrystallization while eight cycloartane-type triterpenes(1-8)were isolated from the mother liquid.The chemical structures of new compounds(1-4)were elucidated by 1D and 2D NMR and HRESIMS spectroscopic analyses.Moreover,new compounds showed moderate and broad-spectrum cytotoxicity against 5 human cancer cell lines with IC_(50) values ranging from 4.02 to 15.80μM. 展开更多
关键词 Cimicifuga foetida Cycloartane triterpenoid saponins Cytotoxic activity
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Six New 9,19-Cycloartane Triterpenoids from Cimicifuga foetida L. 被引量:5
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作者 Guo-Lei Zhu Di-Fan Zhu +5 位作者 Luo-Sheng Wan Xing-Rong Peng Ni-Man Bao Zhi-Run Zhang Lin Zhou Ming-Hua Qiu 《Natural Products and Bioprospecting》 CAS 2016年第4期187-193,共7页
Six new 9,19-cycloartane triterpene derivatives,as well as 3 known analogues(7–9),were isolated from the roots of Cimicifuga foetida L.Their structures were established on the basis of extensive spectroscopic analyse... Six new 9,19-cycloartane triterpene derivatives,as well as 3 known analogues(7–9),were isolated from the roots of Cimicifuga foetida L.Their structures were established on the basis of extensive spectroscopic analyses(IR,UV,ORD,HRESIMS,1D and 2D NMR). 展开更多
关键词 Cimicifuga foetida 9 19-Cycloartane triterpenoids Cycloartane-type
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Cycloartane Glycosides from the Roots of Cimicifuga foetida with Wnt Signaling Pathway Inhibitory Activity 被引量:3
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作者 Di-Fan Zhu Guo-Lei Zhu +4 位作者 Ling-Mei Kong Ni-Man Bao Lin Zhou Yin Nian Ming-Hua Qiu 《Natural Products and Bioprospecting》 CAS 2015年第2期61-67,共7页
Four new 9,19-cycloartane triterpenoids,cimilactone E(1),cimilactone F(2),20-O-(E)-butenoyl-23-epi-26-deoxyactein(3),and 20,12b-O-diacetylcimiracemonol-3-O-b-D-xylopyranoside(4),together with four known constituents(5... Four new 9,19-cycloartane triterpenoids,cimilactone E(1),cimilactone F(2),20-O-(E)-butenoyl-23-epi-26-deoxyactein(3),and 20,12b-O-diacetylcimiracemonol-3-O-b-D-xylopyranoside(4),together with four known constituents(5–8)were isolated from the roots of Cimicifuga foetida.The new structures were elucidated by extensive spectroscopic analysis.In addition,compounds 7 and 8 showed significant Wnt signaling pathway inhibitory activity,with IC50 values of 3.33 and 13.34 lM,respectively,using the luciferase reporter gene assay. 展开更多
关键词 Cimicifuga foetida 9 19-Cycloartane triterpenoids Cimilactone-type Wnt signal pathway Luciferase activity
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Paederia foetida- a promising ethno-medicinal tribal plant of northeastern India 被引量:1
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作者 Silpi ChandaDept.of Pharmacy Jaypee University of Information Technology +2 位作者 Indira P Sarethy Biplab De Kuldeep Singh 《Journal of Forestry Research》 SCIE CAS CSCD 2013年第4期801-808,共8页
The northeastern region of India constitutes one of the biodi- versity hotspots of the world. The ethnic groups inhabiting this region practice their distinctive traditional knowledge systems using biodiver- sity for ... The northeastern region of India constitutes one of the biodi- versity hotspots of the world. The ethnic groups inhabiting this region practice their distinctive traditional knowledge systems using biodiver- sity for food, shelter and healthcare. Among the less-studied plants, Paederia foetida has been used by various ethnic tribes as food and medicine. Many of its therapeutic properties relate to the gastrointestinal system and suggest its potential utility for gastrointestinal ailments. This is a review of the ethnobotanical uses, phytochemistry and therapeutic properties of P. foetida compiled from various reports. P. foetida is promising as a remedy for life-style related conditions, especially treat- ment of ulcers. Its utility highlights the need for proper evaluation of tribal plants as medicines and the species could be considered for devel- opment of new drugs. 展开更多
关键词 Paederia foetida Tribal medicine ETHNOBOTANY phyto-chemistry THERAPEUTIC ULCER
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赤子爱胜蚓(Eisenia foetida)内切型纤维素酶组分鉴定及纯化
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作者 武金霞 张永阔 田志鹏 《河北大学学报(自然科学版)》 CAS 北大核心 2011年第1期63-68,共6页
从赤子爱胜蚓(Eisenia foetida)匀浆液中提取出粗酶液,利用DNS法分析粗酶液中内切型纤维素酶(也称Cx酶)的活力.用刚果红染色法确定了赤子爱胜蚓含有3种内切型纤维素酶,将其分别称作Cx酶Ⅰ、Cx酶Ⅱ和Cx酶Ⅲ.经DEAE-Cellulose-52离子交换... 从赤子爱胜蚓(Eisenia foetida)匀浆液中提取出粗酶液,利用DNS法分析粗酶液中内切型纤维素酶(也称Cx酶)的活力.用刚果红染色法确定了赤子爱胜蚓含有3种内切型纤维素酶,将其分别称作Cx酶Ⅰ、Cx酶Ⅱ和Cx酶Ⅲ.经DEAE-Cellulose-52离子交换层析分离内切型纤维素酶,得到0.15~0.20mol/L NaCl洗脱峰含有活性组分.以制备电泳得到了Cx酶Ⅰ和Cx酶Ⅱ,并用SDS-PAGE测定它们的分子质量分别为33 400u和28 800u.用DNS法测得在粗酶液中内切型纤维素酶的最适反应温度为40℃,最适反应pH值为7.0. 展开更多
关键词 赤子爱胜蚓 内切型纤维素酶 离子交换层析 刚果红染色
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壬基酚对赤子爱胜蚯蚓(Eisenia foetida)的生态胁迫及茶多酚的缓解作用
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作者 陈建华 张碧尧 +3 位作者 李丹佩 陈世红 谢艳颖 王国红 《福建农业学报》 CAS CSCD 北大核心 2020年第11期1271-1279,共9页
【目的】研究壬基酚(NP)对赤子爱胜蚯蚓(Eisenia foetida)的生态胁迫效应,并探讨茶多酚对NP引发蚯蚓生态胁迫的缓解作用。【方法】采用自然土壤法研究壬基酚(NP)对赤子爱胜蚯蚓的生态胁迫效应,通过在NP基础液中添加不同质量分数的茶多酚... 【目的】研究壬基酚(NP)对赤子爱胜蚯蚓(Eisenia foetida)的生态胁迫效应,并探讨茶多酚对NP引发蚯蚓生态胁迫的缓解作用。【方法】采用自然土壤法研究壬基酚(NP)对赤子爱胜蚯蚓的生态胁迫效应,通过在NP基础液中添加不同质量分数的茶多酚,探讨茶多酚对NP胁迫下蚯蚓生活状态的影响、致死毒性、回避行为及生长抑制的缓解作用,同时采用HE组织切片染色法初步探讨NP毒性的作用机理。【结果】400 mg·kg^-1 NP对蚯蚓具有强烈的致死毒性,100~200 mg·kg^-1NP对蚯蚓具有一定的致死毒性,其致死毒性与染毒时间、染毒量呈正相关;NP为200 mg·kg^-1时对蚯蚓生长抑制率达34%,具有显著差异;通过组织切片试验证实,NP胁迫下,蚯蚓空泡化腺细胞减少,环肌层变薄,角质层脱落,表皮层增厚;蚯蚓对12.5~200 mg·kg^-1的NP具有回避反应。在壬基酚基础液中添加70~700μg·kg^-1的茶多酚后,蚯蚓致死率和生长抑制率均有显著下降。0.7~7.0μg·kg^-1的茶多酚能明显缓解蚯蚓的回避反应。与NP对照组相比,添加0.7~700.0μg·kg^-1茶多酚后蚯蚓体壁环肌层厚度增加,角质层恢复光滑完整。【结论】100~400 mg·kg^-1的NP对赤子爱胜蚯蚓具有生态毒性作用,0.7~700.0μg·kg^-1的茶多酚对NP胁迫蚯蚓生态毒性具有缓解作用。 展开更多
关键词 壬基酚 蚯蚓 茶多酚 生态毒性 缓解作用
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Quantitative determination of vitexin in Passiflora foetida Linn. leaves using HPTLC
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作者 Aussavashai Shuayprom Donruedee Sanguansermsri +2 位作者 Phanchana Sanguansermsri Ian Hamilton Fraser Nalin Wongkattiya 《Asian Pacific Journal of Tropical Biomedicine》 SCIE CAS 2016年第3期216-220,共5页
Objective: To establish a simple, rapid, precise and accurate high performance thin layer chromatography(HPTLC) method with densitometric detection for the determination of vitexin in Passiflora foetida Linn.(P. foeti... Objective: To establish a simple, rapid, precise and accurate high performance thin layer chromatography(HPTLC) method with densitometric detection for the determination of vitexin in Passiflora foetida Linn.(P. foetida).Methods: Ethanolic extract of the plant leaf powder was used for the experimental work.Separation was performed on silica gel 60 F254 HPTLC plates with ethyl acetate:methanol: distilled water: formic acid in the proportion of 50:2:3:6(v/v), as the mobile phase. The determination was carried out using the densitometric absorbance mode at340 nm.Results: Vitexin response was linear over the range of 2.5–17.5 mg/m L with a correlation coefficient of 0.996. Intraday and interday precision studies showed the relative SD was< 3%. Accuracy of the method was determined and the average recovery was 100.3%.The limit of quantitation and limit of detection were 0.879 and 0.290 mg/m L, respectively.The contents of vitexin in P. foetida leaf extracts were within the range of 0.030%–0.310%.Conclusions: The method was evaluated for sensitivity, accuracy, precision and reproducibility. Each analysis by HPTLC is less expensive than current methods. This method is suitable for routine quality control of raw material of the leaves of P. foetida extract and its products. 展开更多
关键词 HPTLC Thin layer CHROMATOGRAPHY VITEXIN PASSIFLORA foetida LINN
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Impact of Preparation Process on the Protein Structure and on the Volatile Compounds in <i>Eisenia foetida</i>Protein Powders
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作者 Elias Bou-Maroun Camille Loupiac +5 位作者 Aurélie Loison Bernadette Rollin Philippe Cayot Nathalie Cayot Elil Marquez Ana Luisa Medina 《Food and Nutrition Sciences》 2013年第11期1175-1183,共9页
Protein powders from Eisenia foetida were prepared using different drying processes and fractionation. Differential scanning calorimetry was used to show that heat denaturation occurred during the drying process above... Protein powders from Eisenia foetida were prepared using different drying processes and fractionation. Differential scanning calorimetry was used to show that heat denaturation occurred during the drying process above 42°C. Protein solubility was also studied. The addition of dissociating reagents allowed concluding that solubility was decreased during oven drying due to thermo denaturation including hydrogen bonds. The volatile compounds of the different powders were extracted by solid phase micro-extraction and identified by mass spectrometry. Volatile compounds were related to lipid oxidation and Maillard reactions occurring during the preparation of the powders. High drying temperatures led to more volatile compounds resulting from Maillard reactions. In the protein powder preparation process, a fractionation step led to a “pulp fraction” and a “juice fraction” of earthworms. The “pulp fraction” contained less odorant volatile compounds resulting from Maillard reactions than the “juice fraction” did. 展开更多
关键词 Eisenia foetida PROTEIN POWDER DRYING Process PROTEIN Structure VOLATILE Compounds HS-SPME/GC-MS
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NEW CYCLOARTANE TRITERPENOID CIMISIDE E FROM CIMICIFUGA FOETIDA L.
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作者 Cong Jun LIYing He LI Di Hua CHEN Pei Gen XIAO Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Beijing 100094 《Chinese Chemical Letters》 SCIE CAS CSCD 1993年第11期957-958,共2页
This paper relates to the structural elucidation of a new cycloartane triterpene glycoside, namely cimiside E(1), which was newly isolatea from the rnizomes of Cimicifuga foetida L.. Based on spectral evidence, its st... This paper relates to the structural elucidation of a new cycloartane triterpene glycoside, namely cimiside E(1), which was newly isolatea from the rnizomes of Cimicifuga foetida L.. Based on spectral evidence, its structure has been established as 25-anhydrocimigenol-3-O-β-D-xylopyranoside(23R, 24S). 展开更多
关键词 CHEN NEW CYCLOARTANE TRITERPENOID CIMISIDE E FROM CIMICIFUGA foetida L
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莠去津对赤子爱胜蚓(Eisenia foetida)体腔细胞DNA损伤的研究 被引量:3
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作者 孟琰 王金花 +3 位作者 朱鲁生 王军 谢慧 贾文涛 《安全与环境学报》 CAS CSCD 北大核心 2009年第5期24-29,共6页
为评价莠去津在土壤中的遗传毒性,以赤子爱胜蚓(Eiseniafoetida)为研究对象,以质量比为0 mg/kg、0.1 mg/kg、0.5 mg/kg、2.5mg/kg莠去津对蚯蚓进行暴露染毒,在第7 d、14 d、21 d、28 d、35 d,利用彗星实验技术,取其DNA尾长和尾部DNA百... 为评价莠去津在土壤中的遗传毒性,以赤子爱胜蚓(Eiseniafoetida)为研究对象,以质量比为0 mg/kg、0.1 mg/kg、0.5 mg/kg、2.5mg/kg莠去津对蚯蚓进行暴露染毒,在第7 d、14 d、21 d、28 d、35 d,利用彗星实验技术,取其DNA尾长和尾部DNA百分数作为DNA损伤的指标,研究了莠去津对蚯蚓体腔细胞DNA的损伤。结果表明:1)0.1mg/kg及以上质量比莠去津持续暴露35 d均会对赤子爱胜蚓体腔细胞DNA产生影响,与对照组相比,暴露染毒组体腔细胞DNA均受到损伤且损伤存在显著性差异(p<0.01);2)在长期暴露条件下,0.1~2.5 mg/kg莠去津对赤子爱胜蚓体腔细胞DNA的影响具有明显的剂量-效应关系;3)同一质量比莠去津处理下,暴露时间的延长增加了蚯蚓体腔细胞DNA的损伤程度;4)相同处理时间下,不同质量比莠去津处理组间差异显著(p<0.01)。 展开更多
关键词 生态毒理学 莠去津 赤子爱胜蚓 DNA损伤 彗星实验
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