Antimicrobial activity of Piper arboreum and Piper tuberculatum (Piperaceae) against opportunistic yeasts
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Proteomic profile of Piper tuberculatum (Piperaceae).
Piper tuberculatum (Piperaceae) is a species that accumulates especially amides as secondary metabolites and several biological activities was previously reported. In this article, we report a proteomic study of P. tuberculatum. Bidimensional electrophoresis (2D SDS-PAGE) and mass spectrometry (ESI-Q-TOF) were used in this study. Over a hundred spots and various peptides were identified in this...
متن کاملAntinociceptive effect of crude extract, fractions and three alkaloids obtained from fruits of Piper tuberculatum.
This study investigated the possible antinociceptive effect of the crude extract, fractions and pure compounds (three alkaloids) obtained from fruits of Piper tuberculatum JACQ. (Piperaceae) in acetic acid-induced visceral pain in mice. Oral administration of crude extract and fractions (CH(2)Cl(2), EtOAc, methanol and hexane) (3-300 mg kg(-1)) caused a dose-related and significant inhibition o...
متن کاملEssential oils of leaves of Piper species display larvicidal activity against the dengue vector, Aedes aegypti (Diptera: Culicidae)
The mosquito Aedes aegypti is the vector of the dengue virus, an endemic arbovirus from tropical and subtropical regions of the world. The increasing resistance of mosquitoes to commercial insecticides impairs regular control programs; therefore, chemical prospecting originating from the Amazonian flora is promising for potential new insecticides. Several Piper species are, notably, rich in phe...
متن کاملHydrolysis of Methyl Benzoate from Piper arboreum by Naupactus bipes Beetle
O 3-geranil-4-hidroxibenzoato de metila (1), um novo produto natural, foi isolado das folhas de Piper arboreum (Piperaceae). O metabolismo das folhas de P. arboreum pelo besouro Naupactus bipes (Germar, 1824 Coleoptera: Curculionidae) resultou na biotransformação de 1 para o ácido 3-geranil-4-hidroxibenzoico (2). As estruturas dos metabólitos 1 e 2 foram determinadas com base na interpretação d...
متن کاملOVICIDAL EFFECT OF PIPERACEAE SPECIES ON Biomphalaria glabrata, Schistosoma mansoni HOST
Schistosomiasis is a neglected disease with public health importance in tropical and subtropical regions. An alternative to the disease control is the use of molluscicides to eliminate or reduce the intermediate host snail population causing a reduction of transmission in endemic regions. In this study nine extracts from eight Piperaceae species were evaluated against Biomphalaria glabrata embr...
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تاریخ انتشار 2017