Table 1.

Analyses of splenocytes and determination of lymphocytes and myeloid cells by flow cytometry at parasitemia between 15 and 20%.

Young (Average values)				Old (Average values)
	Cells	Total No	Percentage	Cells	Total No	Percentage	t-test Young vs. Old, p-values
N40	Splenocytes	89446.8	89.4	Splenocytes	89891.0	89.9
	F4/80	16187.0	18.1	F4/80	7832.3	8.71	0.0286(*)
	Nk1.1/FcR+	38793.6	43.4	Nk1.1/FcR+	36438.8	40.5	0.0407(*)
	CD19	2548.6	2.83	CD19	12855.7	14.3	<0.0001(****)
	CD3	6299.6	7.04	CD3	4073.3	4.53	0.0117(*)
	CD8a	1311.2	1.46	CD8a	1661.3	1.85	0.7278(NS)
	CD4	2333.4	2.59	CD4	3780.0	4.20	0.2127(NS)
N40+Bm	Splenocytes	90755.6	90.8	Splenocytes	92252.6	92.3
	F4/80	26300.0	28.9	F4/80	6901.3	7.48	<0.0001(****)
	Nk1.1/FcR+	37486.8	41.3	Nk1.1/FcR+	38820.0	42.1	0.2876(NS)
	CD19	2742.0	3.02	CD19	7679.0	8.32	0.0063(**)
	CD3	10599.0	11.7	CD3	3091.3	3.35	<0.0001(****)
	CD8a	2225.8	2.45	CD8a	1750.3	1.89	0.4594(NS)
	CD4	4459.4	4.91	CD4	3062.5	3.32	0.5896(NS)
Bm	Splenocytes	90480.2	90.5	Splenocytes	98637.2	98.6
	F4/80	25000.6	27.6	F4/80	9461.5	9.59	0.0008(***)
	Nk1.1/FcR+	37720.8	41.7	Nk1.1/FcR+	41822.2	42.4	0.1853(NS)
	CD19	3107.8	3.44	CD19	11047.4	11.2	0.0130(*)
	CD3	9758.7	10.8	CD3	3915.9	3.97	0.0001(***)
	CD8a	2104.0	2.32	CD8a	1361.2	1.38	0.0716(NS)
	CD4	4192.4	4.64	CD4	3166.3	3.21	0.1251(NS)
Naïve	Splenocytes	82605.6	82.6	Splenocytes	85431	85.4
	F4/80	6436.7	7.79	F4/80	5007	5.86
	Nk1.1/FcR+	30209.4	36.5	Nk1.1/FcR+	15922	28.7
	CD19	1876.0	2.26	CD19	4268	4.99
	CD3	3507.7	4.24	CD3	4678	5.47
	CD8a	837.3	1.01	CD8a	1364	1.59
	CD4	3319.2	4.02	CD4	2857	3.34

Statistical analyses: (

^*p < 0.05,

^**p < 0.01,

^***p < 0.001,

^****p < 0.0001, NS-Not significant).