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Research paper

Secondary Metabolites of Hypericum L. Species as Xanthine Oxidase Inhibitors

By
Andrija Šmelcerović ,
Andrija Šmelcerović
Žaklina Šmelcerović ,
Žaklina Šmelcerović
Katarina Tomović ,
Katarina Tomović
Gordana Kocić ,
Gordana Kocić
Aleksandra Đorđević
Aleksandra Đorđević

Abstract

Summary Nine Hypericum species (H. barbatum, H. hirsutum, H. linarioides, H. olympicum, H. perforatum, H. rochelii, H. rumeliacum, H. tetrapterum and H. umbellatum) collected in Serbia were assayed for inhibitory potential against xanthine oxidase in vitro, on the commercial enzyme, and compared with allopurinol. Seven studied Hypericum species (H. barbatum, H. rochelii, H. rumeliacum, H. umbellatum, H. perforatum, H. tetrapterum and H. olympicum) inhibit commercial xanthine oxidase with an IC50 below 100 μg/mL. H. barbatum exerted the most potent inhibitory effect (IC50 = 31.84 ± 6.64 μg/mL), followed closely by H. perforatum (IC50 = 37.12 ± 4.06 μg/mL).

References

1.
Spiteller M, Özen T, Smelcerovic A, Zuehlke S, Mimica-Dukić N. Phenolic constituents and the in vitro antioxidant activity of the flowers of Hypericum venustum. Fitoterapia. 2008;79(3):191–3.

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