Planta Med 2002; 68(6): 561-564
DOI: 10.1055/s-2002-32566
Letter
© Georg Thieme Verlag Stuttgart · New York

Phagnalon rupestre as a Source of Compounds Active on Contact Hypersensitivity

Luis Góngora1 , Rosa María Giner1 , Salvador Máñez1 , María del Carmen Recio1 , José Luis Ríos1
  • 1Departament de Farmacologia, Universitat de València, Burjassot, Spain
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Publikationsverlauf

June 25, 2001

January 20, 2002

Publikationsdatum:
01. Juli 2002 (online)

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Abstract

The effect of Phagnalon rupestre MeOH extract on dinitrofluorobenzene- and sheep red blood cells-induced hypersensitivity was investigated. Eight compounds were identified: three dimethylallyl-hydroquinone glucosides (1 - 3), 3,5- and 4,5-di-O-caffeoylquinic acid methyl esters (4 and 5), their free carboxyl analogues (6 and 7), and luteolin 7-O-β-glucoside (8). All were tested for dinitrofluorobenzene-induced contact hypersensitivity inhibitory activity. Flavonoid 8 was the most active (49 % and 79 % inhibition at 24 and 96 h, respectively). The hydroquinones 1, 2 and 3 were effective at 96 h after challenge (62 %, 73 % and 60 % inhibition, respectively), while some of the dicaffeoylquinic derivatives (4 and 7) produced slightly lower reduction of the inflammatory reaction.

References

Prof. José L. Ríos Cañavate

Departament Farmacologia

Universitat de València

Avda. Vicent Andrés Estellés s/n

46100 Burjassot

Spain

Telefon: /Fax: +34-963864973

eMail: riosjl@uv.es