[The ratio of the contributions from the direct and indirect actions of UV radiation in changing the functional properties of the complement system].

Abstract

Ionole antioxidant (5 x 10(-6) M) was administered to haemolytic complement system and its components (i.e. suspension of erythrocytes sensitized by rabbit antibodies and blood serum). The general effect of the complement system photoinactivation (4.53 x 10(2) J/m2) was attributed to the direct effect of UV-light on the blood serum proteins (approximately 68%) and indirect effect via radical products (approximately 32%).