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Inhibitory activities of microalgal extracts against Epstein-Barr virus DNA release from lymphoblastoid cells

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第5期12卷 335-345页

作者： Yih-Yih KOK Wan-Loy CHU Siew-Moi PHANG Shar Mariam MOHAMED Rakesh NAIDU pey-jiun lai Shui-Nyuk LING Joon-Wah MAK Patricia Kim-Chooi LIM Pauline BALRAJ Alan Soo-Beng KHOO Division of Human Biology International Medical University Institute of Biological Sciences Faculty of Scienceand Institute of Ocean and Earth Sciences(IOES)University of Malaya Faculty of Medicine University of Malaya School of Medicine and Health Sciences Monash University Molecular Pathology Unit Institute for Medical ResearchJalan Pahang

This study aimed to assess the inhibitory activities of methanol extracts from the microalgae Ankistrodesmus convolutus,Synechococcus elongatus,and Spirulina platensis against Epstein-Barr virus(EBV) in three Burkitt's lymphoma(BL) cell lines,namely Akata,B95-8,and *** antiviral activity was assessed by quantifying the cell-free EBV DNA using real-time polymerase chain reaction(PCR) *** methanol extracts from Ankistrodesmus convolutus and Synechococcus elongatus displayed low cytotoxicity and potent effect in re-ducing cell-free EBV DNA(EC5028 000).After fractionation by column chromatography,the fraction from Synechococcus elongatus(SEF1) reduced the cell-free EBV DNA most effectively(EC50=2.9 μg/ml,therapeutic index>69).Upon further fractionation by high performance liquid chromatography(HPLC),the sub-fraction SEF1'a was most active in reducing the cell-free EBV DNA(EC50=1.38 μg/ml,therapeutic index>14.5).This study suggests that microalgae could be a potential source of antiviral compounds that can be used against EBV.

关键词： Microalgae Ankistrodesmus convolutus Synechococcus elongatus Spirulina platensis Lymphoblastoid cells Epstein-Barr virus(EBV)

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Reappraisal of endoscopic papillary balloon dilation for the management of common bile duct stones

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World Journal of Gastrointestinal Endoscopy 2015年第2期7卷 77-86页

作者： Kwok-Hung lai Hoi-Hung Chan Tzung-jiun Tsai Jin-Shiung Cheng Ping-I Hsu Division of Gastroenterology Department of Internal Medicine Kaohsiung Veterans General Hospital School of Medicine National Yang-Ming University

Although endoscopic sphincterotomy(EST) is still considered as a gold standard treatment for common bile duct(CBD) stones in western guideline, endoscopic papillary balloon dilation(EPBD) is commonly used by the endoscopists in Asia as the first-line treatment for CBD stones. Besides the advantages of a technical easy procedure, endoscopic papillary large balloon dilation(EPLBD) can facilitate the removal of large CBD *** indication of EPBD is now extended from removal of the small stones by using traditional balloon, to removal of large stones and avoidance of lithotripsy by using large balloon alone or after EST. According to the reports of antegrade papillary balloon dilatation, balloon dilation itself is not the cause of pancreatitis. On the contrary, adequate dilation of papillary orifice can reduce the trauma to the papilla and pancreas by the basket or lithotripter during the procedure of stone extraction. EPLBD alone is as effective as EPLBD with limited EST. Longer ballooning time may be beneficial in EPLBD alone to achieve adequate loosening of papillary orifice. The longer ballooning time does not increase the risk of pancreatitis but may reduce the bleeding episodes in patients with coagulopathy. Slowly inflation of the balloon, but not exceed the diameter of bile duct and tolerance of the patients are important to prevent the complication of perforation. EPBLD alone or with EST are not the sphincter preserved procedures, regular follow up is necessary for early detection and management of CBD stones recurrence.

关键词： Common bile duct stones Complications Endoscopic balloon dilation Endoscopic large balloondilation Endoscopic sphincterotomy

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桃核承气汤改善四氯化碳诱导的大鼠肝损伤(英文)

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中西医结合学报 2010年第1期8卷 49-55页

作者：赖东渊翁宜君郭薇雯陈立民钟侑庭林岳民蔡辅仁李春兴钟绮雯赖易成黄志扬叶玉兰台湾中国医药大学学士后中医系台湾中国医药大学附设医院中医部台湾中国医药大学基础医学所台湾中国医药大学生科所台湾国军台中总医院社医部台湾中国医药大学附设医院急诊部台湾彰化基督教医院病理科台湾中国医药大学附设医院小儿遗传科基因医学部中国中医科学院西苑医院中医心血管疾病研究室北京100091 台湾中国医药大学中医所台湾台中医院厚生肿瘤中心台湾亚洲大学保健营养生技系

目的:探讨桃核承气汤对四氯化碳诱导的大鼠肝损伤的保护作用。方法:30只大鼠分为正常对照组,模型组,大、小剂量桃核承气汤组和水飞蓟素组。桃核承气汤组灌胃桃核承气汤(0 .3 g/kg或0 .5 g/kg) ,水飞蓟素组灌胃水飞蓟素25 mg/kg。灌胃后... 详细信息

目的:探讨桃核承气汤对四氯化碳诱导的大鼠肝损伤的保护作用。方法:30只大鼠分为正常对照组,模型组,大、小剂量桃核承气汤组和水飞蓟素组。桃核承气汤组灌胃桃核承气汤(0 .3 g/kg或0 .5 g/kg) ,水飞蓟素组灌胃水飞蓟素25 mg/kg。灌胃后1 h腹腔注射四氯化碳1 .5 mL/kg。注射24 h后将大鼠处死,检测肝组织病理学改变,血液中天门冬氨酸氨基转移酶(aspartateamino transferase ,AST)、丙氨酸氨基转移酶(alanine aminotransferase ,ALT)活性及脂质过氧化程度。结果:桃核承气汤不仅明显降低血液中AST及ALT活性,抑制四氯化碳引起的肝脏脂质过氧化,并且增加肝脏中谷胱甘肽含量;组织病理分析发现桃核承气汤可抑制脂质堆积,肝细胞坏死及淋巴细胞浸润。结论:桃核承气汤具有类抗氧化物之作用,对肝损伤有保护作用,甚至功能优于水飞蓟素。

关键词：中药四氯化碳抗氧化剂桃核承气汤大鼠

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