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  • Title: A whole blood method for measuring mitogen-induced transformation of sheep lymphocytes.
    Author: Larsen HJ.
    Journal: Res Vet Sci; 1979 Nov; 27(3):334-8. PubMed ID: 542722.
    Abstract:
    A simple and reproducible micromethod for determination of in vitro mitogenic responses of sheep peripheral blood lymphocytes is described. The test uses (i) whole blood diluted in RPMI 1640 medium to give a cell count of 0.5 x 106-1 x 106 lymphocytes/ml, (ii) mitogens in the range of 5-20 micrograms of phytohaemagglutinin/ml, 20-80 micrograms of lipopolysaccharide/ml or 20-80 microliters of poke weed mitogen/ml, and (iii) a stimulation time of 42 to 90 h. A considerable variation in mitogenic response was observed both between animals and on different occasions in the same animal. Because of the large periodic variation it was suggested that the test should be repeated using blood drawn at different times in order to determine the mitogenic response of an animal.
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