[The immunomodulating action of polyunsaturated phospholipids]

Intravenous injection of essential to Wistar rats stimulates the immune response to sheep's red cells and also induces the appearance of heavy red cells in animal's blood, thus causing the secretion of immunomodulating factor by sticking spleen's cells to glass. Physical training (swimming) suppresses the immune response to sheep's red cells. This effect is connected with light red cells. Essential injection to swimming rats normalizes the immune response and prevents the appearance of light red cells in blood of animals which possess the immunosuppressing activity.