Abstract
Tγ and Tμ lymphocytes and haemolytic plaque-forming cells (PFC) were quantitatively determined in peripheral blood and uterine draining lymph nodes (DLN) from 36 nonpregnant and 45 pregnant sows. A considerable increase in the number of Tγ cells occurred both in the blood and the DLN during pregnancy ( P < 0.001). This increase was higher at the beginning of pregnancy (20th–40th day) and lower at the end (80th–110th day). No significant quantitative changes were found in Tμ cells. During pregnancy there was a marked drop in the number of cells in the peripheral blood manifesting direct erythrocytolytic activity (DECA), as well as of haemolysin-producing cells.
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