Ativação de macrófagos por produtos naturais obtidos da Achillea millefolium L. (Asteraceae)
Alternative titleMacrophage activation by natural products from Achillea millefolium L.(Asteraceae)
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Plants are a valuable source of natural products for the maintenance of human health. The purpose of this paper was the study of immunologic activity of yarrow (Achillea millefolium L.), a largely used plant in popular medicine that has many different properties such as: antiinflammatory, astringent, antiseptic and antispasmodic. Macrophages stimulation was evaluated by the determination of H2O2, NO and TNF-α in supernatants of peritoneal macrophages cultures of mice in the presence of the yarrow leaves extract. The thin layer chromatography of extract was also analyzed, showing rutin. All concentrations showed a moderate release of H2O2 and the concentrations of 6, 8 and 10mg/mL had a higher release of NO. The TNF-a was produced in all concentrations, but the best result was obtained at 4mg/mL. Analyzing the results, it is suggested that the yarrow ethanolic extract can modulate the macrophages activation.
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