1,125 research outputs found
Alterações químicas de ácidos húmicos promovidas por sistemas de manejo em solos subtropicais.
Avaliação do valor nutritivo da silagem de capim elefante "Pennisetum purpureum" com diferentes níveis de subproduto do maracujá "Passiflora edulis"
Particulate soil organic carbon and stratification ratio increases in response to crop residue decomposition under no-till
Clientes, cidadãos, pacientes: reflexões sobre as múltiplas lógicas de cuidado na atenção à saúde
Adaptação de um questionário de autoconfiança relacionado a situações-problema em Odontopediatria
Evaluation of the genotoxic and antigenotoxic potential of Melissa officinalis in mice
Melissa officinalis (L.) (Lamiaceae), a plant known as the lemon balm, is native to the east Mediterranean region and west Asia. Also found in tropical countries, such as Brazil, where it is popularly known as “erva-cidreira” or “melissa”, it is widely used in aqueous- or alcoholic-extract form in the treatment of various disorders. The aim was to investigate in vivo its antigenotoxicity and antimutagenicity, as well as its genotoxic/mutagenic potential through comet and micronucleus assaying. CF-1 male mice were treated with ethanolic (Mo-EE) (250 or 500 mg/kg) or aqueous (Mo-AE) (100 mg/kg) solutions of an M. officinalis extract for 2 weeks, prior to treatment with saline or Methyl methanesulfonate (MMS) doses by intraperitoneal injection. Irrespective of the doses, no genotoxic or mutagenic effects were observed in blood and bone-marrow samples. Although Mo-EE exerted an antigenotoxic effect on the blood cells of mice treated with the alkylating agent (MMS) in all the doses, this was not so with Mo-AE. Micronucleus testing revealed the protector effect of Mo-EE, but only when administered at the highest dose. The implication that an ethanolic extract of M. officinalis has antigenotoxic/antimutagenic properties is an indication of its medicinal relevance
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