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Ethanol extracts of the aerial parts of six Hypericum species, H. barbatum, H. androsaemum, H. richerii, H. hirsutum, H. perforatum and H. perforatum cultivated on mountain Tara were tested for antiinflammatory activity in comparison with indomethacin (IND) using the carrageenan-induced rat paw edema test. It was found that all examined extracts produced antiinflammatory activity, particularly those from H. hirsutum, and both wild and cultivated H. perforatum. A dose-dependent antiinflammatory effect was especially pronounced in extracts showing some lower antiinflammatory activity. There was no correlation between the amount of hypericin in the extracts and their antiinflammatory activity.
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Šavikin et al. (2006) studied this question.
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