RESUMO
Under LPS-stimulus, platelets can activate macrophagesby a cell-to-cell contact or through cytokine degranulation. Rebound effects of anti-thrombotic agents, such as prostanoids and COX inhibitors can lead to thrombosis, infarct, and stroke. Aspirin has been prescribed for decades due to its powerful antiplatelet action, but it is also related to paradoxical effects such as withdrawal syndrome peaks, resistance, and thrombogenesis. Ultra-diluted aspirin can also produce the same effect in one hour, regardless of Cox-2, by still unknown pathways. Antithrombotic effects of aspirin are also reversed by its high dilutions.Aims: This study aims to characterize the effects of aspirin 15cH on macrophages challenged with LPS, a Cox-2 activator.Methodology: RAW 264.7 macrophages were sown in 24 wells plates using R10medium, boosted with 1µg/ml LPS,and treated with aspirin 15 cH and controls. The activity was evaluated after 24 hours. Supernatants were evaluated for cytokines, nitric oxide, and dielectric oscillations, through solvatochromic dyes (Cartwright's method).Results and discussion: macrophage spreading was increased by aspirin 15 cH, anLPS-like effect. Paradoxically, a significant reduction of this effect was noted when both, LPS and aspirin 15 cH, were added. Succussed water reversed the effect of LPS, leading to TNF (p<0.05) production close to baseline levels. Also, the single treatment with succussed water inhibited IL-10 production (p<0.05), but aspirin 200 µg/mL (positive control) highly increased it (p<0.0001), showing the validity of the model. Nitric oxide production was strengthened by LPS presence (p<0.0001), as expected, but partially downregulated after treatment with aspirin 200 µg/mL, water and succussed water. A pilot study with solvatochromic dyes showed no significant difference among treatments.Conclusion: The main data suggest that aspirin 15 cH increases macrophage activity but presents a paradoxal effect when mixed with LPS. On the other hand, succussed water itself has modulatory effects on macrophages.
Assuntos
Escalas de Preparação , Aspirina/uso terapêutico , Ativação de MacrófagosRESUMO
La relación entre hormesis y Homeopatía resulta hoy en día controvertida. Por un lado, sus primeros fundamentos fueron enunciados con el objeto de explicar los efectos de la Homeopatía. Por otro lado, la mayoría de los trabajos realizados que muestran efectos horméticos fueron realizados a concentraciones mucho mayores que las utilizadas en Homeopatía. El presente trabajo muestra varios puntos de contacto entre la Homeopatía y el concepto de hormesis, y muestra la relación que existe entre los trabajos realizados sobre los efectos de la aspirina 15CH y los distintos tipos de hormesis.
Assuntos
Humanos , Aspirina , Hormese , Homeopatia , Posologia HomeopáticaRESUMO
A través de las seguientes páginas, el connotado médico homeópata argentino Francisco Xavier Eizayaga (Santa Fe, Argentina, 23 de enero de 1923 - Buenos Aires, Argentina, 25 de junio de 2001) efectúa un recorrido a través de las ideas de autores como Armando Grosso, Tomás Pablo Paschero, Proceso Sánchez Ortega, James Tyler Kent y Samuel hahnemann, para reunir sus opiniones en cuanto al campo de acción de la Homeopatía. Forman parte de a discusión factores como el grado de evolución de la enfermedad, las características psicológicas del paciente, los miasmas, el fondo constitucional, las lesiones patológicas locales, la sintomatología general y el medicamento simillimum entre otros.
Over the following pages, the noted Argentine homeopath Francisco Xavier Eiza¬yaga (Santa Fe, Argentina, January 23, 1923 - Buenos Aires, Argentina, June 25, 2001) takes a look through the ideas of writers Iike Armando Grosso, Tomás Pablo Paschero, Proceso Sanchez Ortega, James Tyler Kent and Samuel Hahnemann, to gather their views on the scope of homeopathy. The degree of evolution of the disease, the patient's psychological characteristics, the miasma, the constitutional background, local pathological lesions, the general symptoms and the medication simillimum are part of the discussion factors as among others.