In vitro immunological degranulation of human basophils is modulated by lung histamine and Apis mellifica.

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Abstract
1. The effect of high dilutions of two homeopathic drugs Lung histamine (Lung his) and Apis mellifica (Apis mel) used for the treatment of allergic diseases has been assessed on in vitro human basophil degranulation. Experiments were conducted blind. 2. Basophil degranulation induced by 1.66 × 10(‐9) M anti‐IgE antibody was significantly inhibited in the presence of 5 Lung his (5th centesimal dilution of Lung his) and 15 Lung his (15th centesimal dilution of Lung his) by 28.8% and 28.6% respectively and by 65.8% in the presence of 9 Apis mel (9th centesimal dilution of Apis mel). Basophil degranulation induced by 1.66 × 10(‐16) to 1.66 × 10(‐18) M anti‐IgE antibody was also inhibited by high dilutions of Lung his and Apis mel with an inhibition of nearly 100% with 18 Lung his (18th centesimal dilution of Lung his) and 10 Apis mel (10th centesimal dilution of Apis mel). An alternance of inhibition, inactivity and stimulation was observed when basophils were incubated in the presence of serial dilutions of Lung his and Apis mel. 3. The investigation of the clinical efficacy of high dilutions of Lung his and Apis mel should be envisaged in allergic diseases in parallel with in vitro and ex vivo biological assays.