[Gel filtration analysis of the protein antigens of Dermatophagoides pteronyssinus ticks].

Gel filtration analysis was used to study the antigenous composition and molecular weight of the culture extract from the ticks D. pteronyssinus. The highest allergenic and immunochemical activity was shown by elution fractions I and II taken together.

[Adrenergic and cholinergic structures of guinea pig lungs under normal conditions and in experimental bronchial asthma].

Fluorescent and histochemical methods were applied to the study of the morpho-functional condition of the adrenergic and cholinergic nervous system of the bronchopumonary apparatus in guinea pigs under normal conditions and during sensitization (subcutaneous and inhalant) with tick Dermatophagoides pteronyssinus ticks. There was revealed a marked excitation of the adrenergic nervous system, and a reduction of the acetylcholine esterase activity in the bronchopulmonary tissue during the animal sensitization.