Results: 11

Development, characterization and anti - Mycobacterium tuberculosis activity of solid lipid nanoparticles for oral Piper corcovadensis roots extract delivery

The present study thus aimed at the development and physicochemical characterization of solid lipid nanoparticles loaded with crude extract of Piper corcovadensis roots (SLN - CEPc) and chitosan - coated solid lipid nanoparticles loaded with crude extract of P. corcovadensis roots (...

Composición química y actividad Butirilcolinesterasa selectiva del aceite esencial de Piper arboreum Aubl. de Ecuador

The aim of this study was to identify the chemical composition of the Piper arboreum Aubl. essential oil (EO), and to evaluate its inhibitory activity in vitro against the enzymes butyrylcholinesterase (BuChE) and acetylcholinesterase (AChE). The EO was obtained by steam distillation of t...

Phytochemistry and anti-inflammatory activities of Piper kadsura (Choisy) Ohwi – a review

Piper kadsura (Choisy) Ohwi which belongs to the family Piperaceae, is a well-known medicinal plant possessing high medicinal and various therapeutic properties. It is widely used in traditional Chinese medicine for the treatment of asthma and rheumatic arthritis. Numerous studies on this species have al...

Aporphine alkaloids from Piper erecticaule and acetylcholinesterase inhibitory activity

Chemical constituents and biological activities of the aerial parts of Piper erecticaule C.DC. have been studied for the first time. Fractionation and purification of the extracts afforded aristolactam AII (1), aristolactam BII (2), piperolactam A (3), piperolactam C (4), piperolactam D (5), together wit...

Antiplasmodial and antileishmanial activities of compounds from Piper tuberculatum Jacq fruits

Abstract INTRODUCTION This study assessed the activity of compounds from Piper tuberculatum against Plasmodium falciparum and Leishmania guyanensis. METHODS The effects of compounds from P. tuberculatum fruits on P. falciparum and L. guyanensis promastigote growth in vitro were determined. Hemolytic ...

Proteomic profile of Piper tuberculatum (Piperaceae)

Braz. j. biol; 78 (1), 2018
Abstract 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 (...

Biological Activity of Piper aduncum extracts on Anticarsia gemmatalis (Hübner) (Lepidoptera: Erebidae) and Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)

An. acad. bras. ciênc; 89 (3), 2017
ABSTRACT Piper aduncum found naturally in the Amazon and southeastern Brazil, is known for its secondary metabolites that have activity on insects. Anticarsia gemmatalis and Spodoptera frugiperda are among the major insect pests associated with agricultural production. This research evaluated the biologi...

Piper aduncum against Haemonchus contortus isolates: cross resistance and the research of natural bioactive compounds

Abstract The anthelminthic activity of the essential oil (EO) of Piper aduncum L. was tested in vitro on eggs and larvae of resistant (Embrapa2010) and susceptible (McMaster) isolates of Haemonchus contortus. The EO was obtained by steam distillation and its components identified by chromatography. EO co...

Determinación del efecto cicatrizante de Piper aduncum (matico) en fibroblastos humanos

RESUMEN Objetivos. Evaluar el efecto cicatrizante del extracto hidroetanólico de Piper aduncum, en una línea celular de fibroblastos Dermales Adultos Humanos (hDFa). Materiales y métodos. El extracto se obtuvo mediante extracción sólido-líquido, fue concentrado y liofilizado. Se purificaron las...

Concentraciones de alcaloides, glucósidos cianogénicos, polifenoles y saponinas en plantas medicinales seleccionadas en Ecuador y su relación con la toxicidad aguda contra Artemia salina

Rev. biol. trop; 64 (3), 2016
ResumenEntre los principales compuestos químicos sintetizados por las plantas, pero considerados no esenciales para su metabolismo básico, están los alcaloides, los polifenoles, los glucósidos cianogénicos y las saponinas que tienen diversas funciones en las plantas y reconocidas propiedades medicin...