Table 2.

Down-regulation of erythroblast Fas/FasL in pregnant mice

	Fas-positive cells, %			FasL-positive cells, %
	Control*; n = 5	Pregnancy; n = 5	P†	Control*; n = 5	Pregnancy; n = 5	P†
Spleen
ProE	35 ± 8	16 ± 5	—	55 ± 6	40 ± 4	—
Ery.A	36 ± 3	25 ± 3	.022	73 ± 5	59 ± 3	.042
Ery.B	4 ± 1	1.5 ± 0.2	—	17 ± 5	9 ± 2	—
Ery.C	0.6 ± 0.2	0.4 ± 0.1	—	2 ± 1.5	0.8 ± 0.4	—
Non-Ery	30 ± 4	33 ± 5	—	5 ± 0.6	5 ± 1	—
Bone marrow
ProE	18 ± 4	12 ± 4	—	43 ± 10	16 ± 4	—
Ery.A	13 ± 1	9 ± 1	.044	59 ± 8	28 ± 3	.013
Ery.B	0.7 ± 0.1	0.7 ± 0.1	—	7 ± 2	4 ± 2	—
Ery.C	0.3 ± 0.1	0.4 ± 0.1	—	1 ± 0.5	0.6 ± 0.4	—
Non-Ery	20 ± 2	24 ± 5	—	9 ± 2	12 ± 1	—

— indicates not significant.

^*Age- and strain-matched (Balb/C) mice.

^†Two-tailed Student t test, unequal variance, only for statistically significant differences at P < .05.