Planta Med 2014; 80(12): 961-968
DOI: 10.1055/s-0034-1382876
Biological and Pharmacological Activity
Original Papers
Georg Thieme Verlag KG Stuttgart · New York

An Aqueous Extract of Ilex paraguariensis Reduces Carrageenan-Induced Edema and Inhibits the Expression of Cyclooxygenase-2 and Inducible Nitric Oxide Synthase in Animal Models of Inflammation

Guillermo Schinella
1   Cátedra de Farmacología Básica, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
4   Comisión de Investigaciones Científicas (CIC), Provincia de Buenos Aires, La Plata, Argentina
,
Elisa Neyret
2   Departament de Farmacología, Universitat de València, Burjassot, Spain
,
Gloria Cónsole
3   Cátedra de Citología, Histología y Embriología B, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
4   Comisión de Investigaciones Científicas (CIC), Provincia de Buenos Aires, La Plata, Argentina
,
Horacio Tournier
1   Cátedra de Farmacología Básica, Facultad de Ciencias Médicas, Universidad Nacional de La Plata, La Plata, Argentina
4   Comisión de Investigaciones Científicas (CIC), Provincia de Buenos Aires, La Plata, Argentina
,
José M. Prieto
5   Centre for Pharmacognosy and Phytotherapy, Department of Pharmaceutical and Biological Chemistry, University College of London School of Pharmacy, London, United Kingdom
,
José-Luis Ríos
2   Departament de Farmacología, Universitat de València, Burjassot, Spain
,
Rosa María Giner
2   Departament de Farmacología, Universitat de València, Burjassot, Spain
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Weitere Informationen

Publikationsverlauf

received 14. April 2014
revised 06. Juni 2014

accepted 13. Juni 2014

Publikationsdatum:
04. August 2014 (online)

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Abstract

Mate (Ilex paraguariensis) is a highly popular herbal beverage in South America due to its high content of caffeine. Its hypolipidemic and antioxidant properties are of increasing interest in the treatment of cardiovascular disorders and for weight control. In the present study, we show for the first time both the local and systemic anti-inflammatory effects of an aqueous extract of mate in three classic in vivo models, namely acute and chronic 12-O-tetradecanoylphorbol 13-acetate-induced mouse ear edema and acute carrageenan-induced mouse paw edema. Caffeine, rutin, chlorogenic acid, 3,5-dicafeoyl quinic acid, and 4,5-dicafeoyl quinic acid, accompanied by a complex mixture of other simple phenolic acids, were identified in the extract by HPLC-UV analyses. In the acute edema model, mate extract applied topically (1 mg/ear) halved the 12-O-tetradecanoylphorbol 13-acetate-induced acute edema (50 %) and almost suppressed neutrophil infiltration (93 %), while in the 12-O-tetradecanoylphorbol 13-acetate-induced subchronic inflammation, the edema was significantly reduced by 62 % (1 mg/ear/day × seven doses). The oral administration of the mate extract (250 mg/kg) significantly reduced the carrageenan-induced edema at all time points, an effect which was accompanied by a 43 % and 53 % reduction of the expression of cyclooxygenase-2 and inducible nitric oxide synthase, respectively. Histological analyses confirmed a reduction of epithelium thickness, dermis with mild inflammation, hair follicles with some secretory cells of sebaceous glands, and hypodermic adipocytes. In conclusion, mate is endowed with in vivo preventative or therapeutic anti-inflammatory effects in both local and systemic inflammatory processes.