The effect of Minthostachys verticillata essential oil on the immune response of patients allergic to dust mites
; Moser, Marina ; Andrada, Melisa ; Demo, Mirta Susana ; Zygadlo, Julio Alberto
; Sabini, Liliana Ines ; Maldonado, Ana Maria Otros responsables
Fecha
12/2009
Editorial
Soc Fitoquimica Latinoamericana
Revista
Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas
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0717-7917
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El aceite esencial de hojas de M. verticillata fue obtenido por destilación en corriente de vapor y analizado por cromatografía gaseosa. Células mononucleares de sangre periférica de pacientes alérgicos, fueron estimuladas con aceite esencial. La proliferación fue ensayada mediante método colorimétrico del MTT o 3,(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl tetrazolium bromide. Se cuantificaron células CD4 + , CD8 + y B en cultivos de linfocitos y en sobrenadantes, IFN- γ e IL-13. Se determinó la liberación de la enzima β -hexosaminidasa de basófilos adicionados de aceite esencial, y desafiados con el alergeno. Los efectos del aceite esencial fueron comparados con los de drogas antialérgicas. Los principales constituyentes identificados fueron pulegona, mentona y limoneno. Aceite esencial incrementó los valores de células CD4 + , CD8 + y B (p<0.002), estimuló la síntesis de IFN- γ y redujo los niveles de IL-13. El aceite esencial disminuyó la liberación de β -hexosaminidasa de basófilos (p<0.0001) con mayores efectos que los de las drogas ensayadas. Aceite esencial estimuló la desviación Th1 y redujo la liberación de la enzima β -hexosaminidasa de basófilos de pacientes alérgicos.
The essential oil from leaves of Minthostachys verticillata was obtained by steam distillation and analyzed by gas chromatography. Peripheral blood mononuclear cells from allergic patients were stimulated with essential oil. By application of MTT or 3,(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl tetrazolium bromide colorimetric test the proliferation was assayed. In lymphocyte cultures CD4+, CD8+ and B cells were quantified, and in supernatants, IFN-γ and IL-13. The liberation of β-hexosaminidase enzyme was determined for basophils with essential oil added and challenged with allergen and its effects were compared with those of anti-allergic drugs. The main constituents identified were pulegone, menthone and limonene. Essential oil increased absolute values of CD4+, CD8+ and B cells (p<0.002), stimulated IFN-γ synthesis and reduced IL-13 levels. Essential oil diminished β-hexosaminidase liberation by basophils (p<0.0001), with effects majors to those of the drugs tested. Essential oil stimulated the Th1 deviation and reduced β-hexosaminidase enzyme liberation by basophils from allergic patients
The essential oil from leaves of Minthostachys verticillata was obtained by steam distillation and analyzed by gas chromatography. Peripheral blood mononuclear cells from allergic patients were stimulated with essential oil. By application of MTT or 3,(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl tetrazolium bromide colorimetric test the proliferation was assayed. In lymphocyte cultures CD4+, CD8+ and B cells were quantified, and in supernatants, IFN-γ and IL-13. The liberation of β-hexosaminidase enzyme was determined for basophils with essential oil added and challenged with allergen and its effects were compared with those of anti-allergic drugs. The main constituents identified were pulegone, menthone and limonene. Essential oil increased absolute values of CD4+, CD8+ and B cells (p<0.002), stimulated IFN-γ synthesis and reduced IL-13 levels. Essential oil diminished β-hexosaminidase liberation by basophils (p<0.0001), with effects majors to those of the drugs tested. Essential oil stimulated the Th1 deviation and reduced β-hexosaminidase enzyme liberation by basophils from allergic patients
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