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[Screening of Molluscacidal Microorganisms against Oncomelania hupensis and Their Effect].
Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi
June 2015
Fifteen soil samples were collected from Oncomelania hupensis culture pond in Miluo Schistosomiasis Control and Prevention Base, Hunan Province. Four strains of bacteria were identified to have molluscacidal effects, numbered as B8, B27, B36 and B59. Compared with the fermentation broth groups and bacteria suspension groups, the fermentation supernatant groups of the four strains showed the strongest molluscacidal effect.
View Article and Find Full Text PDF[Spatial distribution and elimination of Schistosome japonicum intermediate hosts Oncomelania hupensis in mountainous regions].
Zhonghua Yu Fang Yi Xue Za Zhi
August 2008
Department of Epidemiology, School of Public Health, Fudan University-Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China.
Objective: To explore the spatial distribution and elimination of Oncomelania hupensis in mountainous regions.
Methods: Puge County in Tezi township was selected as the study site and the quadratus were placed randomly to investigate snail. The two sods with water were selected as the sites of snail elimination.
New 1,3-benzoxazin-2-ones or thiones of molluscacidal activity.
Pharmazie
June 2000
National Research Centre, Dokki, Cairo, Egypt.
A facile synthetic approach towards 3-aryl, alkyl or beta-glucopyranosyl-1,3-benzoxazin-2-ones and their thio-analogues 3 was adopted via the reaction of the easily available 3-(2-hydroxyaryl)-2-propen-1-ones 1 with a variety of isocyanates or isothiocyanates. The isolation of the open-chain carbamates 2 and then independent cyclization to the corresponding 1,3-benzoxazines 3 confirms the reaction sequence. Molluscacidal activity of the products was screened.
View Article and Find Full Text PDF[Molluscacidal activity of Paraiso (Melia azedarach L.) (Meliaceae) on Lymnaea cubensis, host snail of fascioliasis].
Rev Saude Publica
June 1998
Departamento de Ciencias Farmacéuticas, Facultad de Ingeniería Química-Farmacial, Universidad de Camaguey (FIQF/UC), Cuba.
Introduction: Fasciolosis is a source of serious economic loss in various regions of Brazil and when control measures of its host (molluscs) are not taken under favorable ecological conditions, isolated cases of human Fasciolosis may occur. Among the alternative measures for its control is the use of vegetable extracts and the purpose of this project is the assessment of the use of juice extracted from the fruit and seeds of the Paraiso plant (Melia azedarach L.) in the control of Lymnaea cubensis, the main vector of Fasciolosis in Cuba.
View Article and Find Full Text PDF[Molluscacidal activity of spiro-alpha-methylene-gamma-butyrolactone].
Arch Pharm (Weinheim)
December 1993
Pharmazeutisches Institut, Rheinischen Friedrich-Wilhelms-Universität Bonn.
The alpha-methylene-gamma-butyrolactones 1-28 were tested in vitro for molluscicidal activity against Biomphalaria glabrata. The racemic compound 25 shows the best activity. The synthesis was carried out by modified Reformatzky reaction of the corresponding carbonyl compounds and bromomethylacrylic acid ethyl ester.
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