TABLE 1.

CD4⁺ T-cell viability after 2 weekly stimulations of MLR cocultured with L. paracasei NCC2461^a

Culture conditionsc	4 days after restimulationb			7 days after restimulationb
	Total no. of cells (106)	% of CD4+ cells	No. of CD4+ cells (105)	Total no. of cells (106)	% of CD4+ cells	No. of CD4+ cells (105)
Medium	1.2	14.87	1.78	1.1	38.88	4.28
NCC2461 (107 CFU/ml)	1.2	11.88	1.43	1.0	19.9	1.99
NCC2461 (106 CFU/ml)	1.2	8.94	1.07	1.1	24.09	2.65
LPS (1 μg/ml)	1.5	12.26	1.84	1.2	21.81	2.62
aIL-4 (10 μg/ml)	1.5	11.03	1.65	0.9	31.84	2.87

^aValues are mean of triplicate cultures from one representative experiment. The SEM (not shown) did not exceed 12% of the means. 

^bCD4⁺ T cells were harvested, and viability was assessed by trypan blue exclusion 4 and 7 days after the second weekly restimulation. 

^cCulture conditions during the first 2 weeks of culture.