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New insights on the effects of formulation type and compositional mixtures over the antioxidant and cytotoxic activities of dietary supplements based-on hepatoprotective plants

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Resumo:Artichoke (A), borututu (B) and milk thistle (M) are included in several supplements to provide beneficial effects. Different formulations (infusions, pills and syrups), as also different proportions of A, B and M (1:1:1, 2:1:1, 1:2:1, 1:1:2) within each formulation were assayed to optimize the desired benefits. The antioxidant activity, anti-hepatocellular carcinoma activity, hepatotoxicity and bioactive compounds contents were evaluated. Syrups tended to be the formulation with highest antioxidant activity and total phenolics and flavonoids content; otherwise, pills were the worst formulation. In what concerns A:B:M ratios, the results did not reveal so pronounced differences. None of the assayed mixtures resulted to be toxic (up to the maximum assayed dose) for liver primary cells (PLP2), but some samples, especially infusions, showed toxicity for the hepatocellular carcinoma cell line (HepG2). With no exception, the mixtures for all formulations gave synergistic effects in antioxidant activity, when compared to the activity of single plants.
Autores principais:Pereira, Carla
Outros Autores:Barreira, João C.M.; Calhelha, Ricardo C.; Queiroz, Maria João R.P.; Barros, Lillian; Ferreira, Isabel C.F.R.
Assunto:Dietary supplements Formulation Compositional mixture Bioactivity Citotoxicity Synergism
Ano:2014
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Bragança
Idioma:inglês
Origem:Biblioteca Digital do IPB

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