Results: 9

Atractylenolide III alleviates sepsis-mediated lung injury via inhibition of FoxO1 and VNN1 protein

Acta cir. bras; 36 (8), 2021
ABSTRACT Purpose: To evaluate the influence of atractylenolide (Atr) III on sepsis-induced lung damage. Methods: We constructed a mouse sepsis model through cecal ligation and puncture. These mice were allocated to the normal, sepsis, sepsis + Atr III-L (2 mg/kg), as well as Atr III-H (8 mg/kg) group. ...

Lapiferin protects against H1N1 virus-induced pulmonary inflammation by negatively regulating NF-kB signaling

Braz. j. med. biol. res; 53 (10), 2020
H1N1 virus-induced excessive inflammatory response contributes to severe disease and high mortality rates. There is currently no effective strategy against virus infection in lung. The present study evaluated the protective roles of a natural compound, lapiferin, in H1N1 virus-induced pulmonary inflammat...

Antibacterial and antiproliferative activities of the fresh leaf essential oil of Psidium guajava L. (Myrtaceae)

Braz. j. biol; 79 (4), 2019
Abstract This study evaluated the antibacterial and antiproliferative activities of the essential oil of Psidium guajava leaves (PG-EO), traditionally used in folk medicine. The essential oil was obtained from fresh leaves by hydrodistillation, using a modified Clevenger apparatus. The major PG-EO chemi...

Effects of huperzine A on hippocampal inflammatory response and neurotrophic factors in aged rats after anesthesia

Acta cir. bras; 34 (12), 2019
Abstract Purpose To investigate the effects of huperzine A (HupA) on hippocampal inflammatory response and neurotrophic factors in aged rats after anesthesia. Methods Thirty-six Sprague Dawley rats (20-22 months old) were randomly divided into control, isofluran, and isoflurane+HupA groups; 12 rats i...

Identificación y determinación estructural de un sesquiterpeno de las hojas de Tessaria integrifolia Ruiz & Pav. y evaluación de su actividad leishmanicida

RESUMEN Objetivos. Identificar y determinar la estructura del fitoconstituyente de hojas de Tessaria integrifolia Ruiz & Pav con efecto leishmanicida. Materiales y métodos. Se preparó un extracto fluido de hojas de Tessaria integrifolia Ruiz & Pav. que fue concentrado a extracto blando y se...

Chemical Composition and Antibacterial Activity of the Essential Oil of Vitex agnus-castus L. (Lamiaceae)

An. acad. bras. ciênc; 89 (4), 2017
ABSTRACT Abnormal multiplication of oral bacteria causes dental caries and dental plaque. These diseases continue to be major public health concerns worldwide, mainly in developing countries. In this study, the chemical composition and antimicrobial activity of the essential oil of Vitex agnus-castus lea...

Effects of budlein A on human neutrophils and lymphocytes

J. appl. oral sci; 24 (3), 2016
ABSTRACT Sesquiterpene lactones (SLs) are the active constituents of a variety of medicinal plants used in traditional medicine for the treatment of inflammatory diseases and other ailments. Objective In this study, we evaluated whether budlein A modulates the activation of innate and adaptive immune c...

Effect of (+)-dehydrofukinone on GABAA receptors and stress response in fish model

Braz. j. med. biol. res; 49 (1), 2016
(+)-Dehydrofukinone (DHF) is a major component of the essential oil of Nectandra grandiflora (Lauraceae), and exerts a depressant effect on the central nervous system of fish. However, the neuronal mechanism underlying DHF action remains unknown. This study aimed to investigate the action of DHF on GABAA...

Sesquiterpene lactones from Vernonia

Mem. Inst. Oswaldo Cruz; 86 (supl.2), 1991
Some informations about the sesquiterpene lactones isolated from Brazilian species of Vernonia are described, as well the results of tests developed with such compounds with respect to their anti-feedant, molluscicide, antimicrobial and analgesic properties....