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The antileishmanial activity assessment of unusual flavonoids from Kalanchoe pinnata.
The importance of flavonoids for the antileishmanial activity of Kalanchoe pinnata was previously demonstrated by the isolation of quercitrin, a potent antileishmanial flavonoid. In the presentExpand
Screening of antifungal agents using ethanol precipitation and bioautography of medicinal and food plants.
In the search for bioactive compounds, bioautography and ethanol precipitation of macromolecules (proteins, polysaccharides, etc.) of plant aqueous extracts were associated in an antifungalExpand
Antinociceptive and anti-inflammatory kaempferol glycosides from Sedum dendroideum.
AIM OF THE STUDY To identify the compounds responsible for the antinociceptive and anti-inflammatory effects previously described for Sedum dendroideum, through bioassay-guided fractionationExpand
Genotoxic and mutagenic effects of guarana (Paullinia cupana) in prokaryotic organisms.
Aqueous extracts of Paullinia cupana (guarana), a species that belongs to the Sapindaceae family, were analyzed for the presence of genotoxic activities in bacterial cells. The extracts of guaranaExpand
In vitro anti-rotavirus activity of some medicinal plants used in Brazil against diarrhea.
Acute diarrhea, especially in children, is a very common disease with worldwide distribution and with a significant public health impact. Rotaviruses have been recognized as the major agents ofExpand
Cooccurrence of Mycotoxins in Maize and Poultry Feeds from Brazil by Liquid Chromatography/Tandem Mass Spectrometry
The objective of this study was to quantitatively evaluate mycotoxins in samples of maize and poultry feed produced in Brazil. A multimycotoxin method based on HPLC-MS/MS was applied to investigateExpand
Oral metabolism and efficacy of Kalanchoe pinnata flavonoids in a murine model of cutaneous leishmaniasis.
Leishmaniasis is a parasitic disease that threatens 350 million people worldwide. In a search for new antileishmanial drugs, the in vitro activity of flavonoids from Kalanchoe pinnata (Crassulaceae)Expand
Flavonol monoglycosides isolated from the antiviral fractions of Persea americana (Lauraceae) leaf infusion
An infusion of Persea americana leaves (Lauraceae) strongly inhibited herpes simplex virus type 1 (HSV‐1), Aujeszky's disease virus (ADV) and adenovirus type 3 (AD3) in cell cultures. ItsExpand
Flavonol robinobiosides and rutinosides from Alternanthera brasiliana (Amaranthaceae) and their effects on lymphocyte proliferation in vitro
The extract of the medicinal species Alternanthera brasiliana Kuntze afforded six di- and triglycosyl kaempferol and quercetin derivatives. Their structures were elucidated based on the 1H- andExpand
Patuletin acetylrhamnosides from Kalanchoe brasiliensis as inhibitors of human lymphocyte proliferative activity.
The fractionation of the juice of fresh stems and leaves of Kalanchoe brasiliensis was monitored by an assay measuring lymphocyte proliferative activity and allowed the isolation and identificationExpand