The authoress gives fundamentals of fluorescence microscopy, discusses the principles of fluorescence reactions, as well as the process of sera marking; a number of examples are quoted to illustrate the application of the method in parasitology, particularly in studies on toxoplasmosis and trichinellosis.
The authors tried to determine the role of TH lymphocytes in the course of muscular trichinellosis in mice. The investigations were carried out on the CFW mice infected with 200 Trichinella spiralis larvae and treated with Cyclosporine A to suppresse TH1 lymphocytes. In animals treated with the drug more numerous cells inside the larval capsules and more numerous granulomas compared to control were seen. At the same time the mean number of larvae was lower (69,2%) than in control. The results show that TH1 lymphocytes do not play the significant role in the destruction of muscular larvae. This is the first conclusion and requires of course futher investigations.
The inflammatory infiltration cells penetrating through the larval capsule walls were observed. The observation were carried out in the masseter muscle of the mice infected with Trichinella spiralis larvae only (control) or infected and treated with PHA-P, TFX or dexamethason. The more numerous cells, than in the control, in the mice treated with PHA-P and TFX were seen. Opposite, the fever numerous cells inside the capsula walls in the mice that received dexamethason were found. The authors supposed that the phenomenon of inflammatory cells penetration through larval capsule play an important role in the defence mechanisms of the host.