[Radioimmunologic dosage of total IgE serum in various helminthiases and protozoan infections (author's transl)].

The both purposes of our investigation were to determine initially the level of total serum IgE in various parasitic infections and the variations of this level after the initiation of specific treatment. In the study, III sera from black race patients with a clinical and biological diagnosis of helmintic or protozoal infections and without allergic diseases were tested by the commercially available "Radioimmunosorbent test" (Pharmacia Laboratories). In helmintic infections: the IgE concentration was higher than normal level: --in 100% of patients infested with ankylostoma, trichocephalus (mean concentration m: 2,961 UI/ml) or schistosoma (m: 1,578 UI/ml); --in 70% of patients infested with ascaris (m: 1,110 UI/ml). In protozoal infections: the abnormal IGE level was found only in 44% and 14% of cases respectively of malaria (m = 704 UI/ml) and of leishmaniasis (441 UI/ml). The time course of total serum IgE determined after the treatment initiation showed that: a) in patients with intracellular helminthiasis and protozoal infections serum IgE concentrations were gradually increased in a statistically highly significant way; b) in cases with intestinal helminthiasis, high levels disappeared ane returned rapidly to normal values.