Navegando por Assunto "Mikania lindleyana"

Agora exibindo 1 - 4 de 4

Acesso aberto (Open Access)
Anti-inflammatory and opioid-like activities in methanol extract of Mikania lindleyana, sucuriju
(2012-02) VANDERLINDE, Frederico Argollo; ROCHA, Fabio Fagundes da; MALVAR, David do Carmo; FERREIRA, Raquel Teixeira; COSTA, Elson Alves; FLORENTINO, Iziara Ferreira; GUILHON, Giselle Maria Skelding Pinheiro; LIMA, Thereza Christina Monteiro de
Mikania lindleyana DC., Asteraceae (sucuriju), grows in the Amazon region, where is frequently used to treat pain, inflammatory diseases and scarring. This study was carried out to investigate phytochemical profile accompanied by in vivo antinociceptive and anti-inflammatory screening of n-hexane (HE), dichloromethane (DME) and methanol (ME) extracts obtained from the aerial parts of the plant. The oral administration of ME (0.1, 0.3, 1 g/kg) caused a dose-related reduction (16.2, 42.1 e 70.2%) of acetic acid-induced abdominal writhing while HE and DME (1 g/kg, p.o.) were ineffective. In the hot plate test, ME (300 mg/kg, p.o.) increased the latency of heat stimulus between 30 and 120 min and inhibited the first (45%) and second (60%) phases of nociception in the formalin test. The antinociception induced by ME or positive control fentanyl (150 µg/kg, s.c.) in hot plate and formalin tests was prevented by naloxone (3 mg/kg, s.c.). When submitted to the carrageenan-induced peritonitis test, ME (0.5, 1.0, 2.0 g/kg, p.o.) impaired leukocyte migration into the peritoneal cavity by 46.8, 59.4 and 64.8% respectively, while positive control dexamethasone (2 mg/kg, s.c.), inhibited leukocyte migration by 71.1%. These results indicate that the antinociception obtained after oral administration of methanol extract of M. lindleyana involves anti-inflammatory mechanisms accompanied with opioid-like activity which could explain the use of the specie for pain and inflammatory diseases.
Acesso aberto (Open Access)
Avaliação da atividade antinociceptiva e anti-inflamatória de Mikania lindleyana DC: validação do uso na medicina popular
(Universidade Federal do Pará, 2011-06-20) SILVA, Andressa Santa Brigida da; BARBOSA, Wagner Luiz Ramos; http://lattes.cnpq.br/1372405563294070; SOUSA, Pergentino José da Cunha; http://lattes.cnpq.br/9909053957915090
Mikania lindleyana DC. (Asteraceae), popularly named sucuriju, is a common plant in Brazilian Amazonia. Ethnopharmacological studies show a diversity of uses of this species such in treatment of gastritis, infection, pain and inflammation. To validate the claim form and use was decided to study the acute toxicity and the antinociceptive and anti-inflammatory activities in experimental animal models and the chemical composition of lyophilized crude aqueous extract of Mikania lindleyana (AEML). The phytochemical screening of AEML showed the presence of saponins, proteins, amino acids, phenols, tannins, organic acids and flavonoids. On the thin layer chromatography (TLC) blues fluorescence characteristics of the coumaric acid were identifieds. The analisis on high-performance liquid chromatography coupled to mass spectrometry (HPLC-DAD-MS) seems compounds highly glycosylated. The dose 5000mg/kg of EAML did not cause death in animals. The AEML, at doses 125, 250, 500, 750, 1000 and 1500mg/kg, significantly inhibited (in a dose-dependant way) the number of contortions induced by acetic acid on writhing test. The median effective dose (ED50) of 692.6 mg/kg did not prolong the latency-time in the hot plate. The AEML showed activity in both first and second phase of formalin-induced licking response decreasing of the lick paw of mice, where this effect was reversed by the opioid antagonist naloxone. The AEML was able to inhibite the erythema formation when compared to control group, but did not inhibite the paw edema formation induced by dextran. The AEML inhibited the paw edema carrageenan-induced from 2nd hour and reduced neutrophil migration to peritoneal cavity. Our results indicate that AEML demonstrate an antinociceptive effect with probable involvement of the opioid system, and anti-inflammatory activity through inhibition of prodution of inflammatory mediators as PGs, and also on adhesion molecules with involvement of cytokines.
Acesso aberto (Open Access)
Avaliação de minerais em plantas medicinais amazônicas
(2009-06) MARTINS, Alexsandro Sozar; ALVES, Claudio Nahum; LAMEIRA, Osmar Alves; SANTOS, Alberdan Silva; MÜLLER, Regina Celi Sarkis
The Amazonian Brazilian offers an appreciable potential of plants with therapeutic properties, although most are little known. In this way, with the objective of verifying the potentiality nutritional of medicinal herbs, a work was developed to determine the concentration of Ca, Mg, Fe, Cu and Zn in the leaves and in the teas of these species: Piper callosum Ruiz & Pav., Piperaceae, Mikania lindleyana DC., Asteraceae e Arrabidaea chica (Humb. & Bonpl.) B. Verl., Bignoniaceae. After the plants samples have been processed, they were submitted to digestion and soon afterwards the metals were analyzed in an spectrophotometer of Atomic Absorption. The results showed the follow yields: for the tea of Arrabidaea chica Ca were detected (6955 to 20058 mg/L), Mg (2390 to 3094 mg/L) and Fe (40 to 61 mg/L). For the tea of Mikania lindleyana besides the presence of high values of Ca (17722 to 22336 mg/L), Mg (4531 to 9370 mg/L) and Fe (20 to 87 mg/L) they were found from 7 to 16 mg/L of Cu and 9 to 41 mg/L of Zn. The tea of the Piper callosum presented 2036 to 4344 mg/L of Ca, 618 to 4023 mg/L of Mg and 39 to 60 mg/L of Fe. Being compared the results of the minerals with the values recommended by the Health World Organization, is possible that the present metals in the teas of the plants could contribute in the complementation of the people's alimentary diets that use these medicinal plants.
Acesso aberto (Open Access)
Desenvolvimento de um método para caracterização do extrato hidroetanólico das folhas de Mikania lindleyana DC por Cromatografia Líquida de Alta Eficiência (CLAE)
(Universidade Federal do Pará, 2011) OWITI, Alex Oselu; BARBOSA, Wagner Luiz Ramos; http://lattes.cnpq.br/1372405563294070
Mikania lindleyana DC (Asteraceae), vernacular “Sucuriju”, is a creeping, shrubby, perennial, evergreen plant, growing in the Amazon region where it is used as diuretic, anti-hypertensive, anti-inflammatory and anti-ulcerous medicine. The main aim of this study was to develop a method for characterization of hydro-ethanolic extract (tincture) from the leaves of M. lindleyana DC, using UV and High performance Liquid Chromatography (HPLC). The hydro-ethanolic extract (tincture) was prepared based on Brazilian Pharmacopeia V, 2010 and its dry residue was submitted to phytochemical analyses, Thin Layer Chromatography (TLC) and High Performance Liquid chromatography (HPLC). Among the substances observed in the phytochemical analysis was coumarin, alkaloids, amino acids, reducing sugars, phenols, tannins, steroids, terpenes, saponins and organic acids. TLC test was done by applying hexanic, chloroformic and ethyl acetate Fractions together with Crude hydro-ethanolic extract and aqueous solution of coumarin Aldrich® 0,1mg/ml on the same plate using toluene/dichloromethane/acetone (45:25:30) as the eluent system. The chromatogram was then sprayed with an alcoholic solution of KOH 5%, and then observed under UV light at 254nm and 365 nm, revealing a light green band at an RF-0.61 for chloroformic fraction, crude hydro-ethanolic extract and for coumarin samples. The HPLC analysis was conducted using methanol/water 53:47 as the eluent system. The chloroformic fraction(CL), coumarin and the crude hydro-ethanolic extract (CHE) showed peaks at Retention time around 6.00minutes and spectra with maximum absorptions between 270nm and 300nm.This clearly demonstrate the presence of coumarins in the samples (CL= 0.209mg/mL and CHE= 0.014mg/mL).