Abstract
Malva sylvestris has been used since ancient times for its emollient, laxative and anti-inflammatory properties, being extensively used as salads, soups and teas. The preset study evaluated the topical anti-inflammatory action of M. sylvestris hydroalcoholic extract (HE) and its compounds in mice ear inflammation caused by 12-O-tetradecanoylphorbol-acetate in mice. The LC-MS analysis of the HE confirmed the presence of scopoletin, quercetin and malvidin 3-glucoside compounds in the HE of M. sylvestris. Topical application of the HE reduced ear oedema, polymorphonuclear cells influx (myeloperoxydase activity and histological analysis) and interleukin-1β levels in the tissue. The topical application of the compound present in the HE, malvidin 3-glucoside was also able to inhibit ear oedema and leukocytes migration. The other tested compounds, scopoletin, quercetin and malvidin 3,5-glucoside were able to prevent the formation of oedema and cell infiltration, but with less effectiveness when compared to HE and malvidin 3-glucoside. Therefore, these results consistently support the notion that M. sylvestris leaves possesses topical anti-inflammatory activity, the compound malvidin 3-glucoside seems to be major responsible for this effect, with the participation of other anti-inflammatory compounds in the extract. Thus, as recommended by population, M. sylvestris can be used as a future treatment to skin disorders.
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