Ivanov A A, Shvets V N, Boĭko M I
Kosm Biol Aviakosm Med. 1983;17(1):66-7.
The experiments with sexually immature (about 3 years) primates Macaca mulatta exposed to head-down tilt and clinostatic hypokinesia showed an increase in the complementary activity of serum and a decrease of heterophil antibodies in the first case. It is inferred that an increase in the complement content reflects an adaptive reaction to head-down tilt and a decrease in heterophil antibodies indicates an inhibition of antibody-forming cells (B-lymphocytes).
