TABLE 2.

PERCENTAGES OF CELL TYPES IN BRONCHOALVEOLAR LAVAGE FLUID 1 d AND 14 d AFTER INHALATION

	Neutrophil	Lymphocyte	Eosinophil	Macrophage
Sal/sal (1 d)	0.09 ± 0.09	1.25 ± 0.83	0.00 ± 0.00	98.65 ± 0.92
Sal/sal (14 d)	0.00 ± 0.00	0.52 ± 0.24	0.28 ± 0.28	98.93 ± 0.59
Sal/MWCNT (1 d)	11.31 ± 2.21*	1.37 ± 0.38	1.21 ± 0.55	86.09 ± 2.42†
Sal/MWCNT (14 d)	0.00 ± 0.00	0.54 ± 0.16	0.00 ± 0.00	99.3 ± 0.32
OVA/sal (1 d)	11.22 ± 9.55	2.20 ± 0.98	14.48 ± 12.63	72.35 ± 16.56
OVA/sal (14 d)	0.83 ± 0.42	2.02 ± 1.12	1.37 ± 0.57	95.77 ± 2.02
OVA/MWCNT (1 d)	28.34 ± 7.91‡	2.13 ± 0.38	14.22 ± 6.56	55.30 ± 8.42§
OVA/MWCNT (14 d)	0.08 ± 0.08	2.92 ± 1.25	2.55 ± 1.67	94.45 ± 2.88

Definition of abbreviations: MWCNT, multiwalled carbon nanotubes; OVA, ovalbumin.

Data are mean ± SEM for 4 animals (sal/sal at 1 d) or 5 animals (all others).

^*P < 005 compared with sal/sal neutrophil count at 1 d.

^†P < 005 compared with sal/sal macrophage count at 1 d.

^‡P < 01 compared with sal/MWCNT neutrophil count at 1 d.

^§P < 005 compared with sal/MWCNT macrophage count at 1d.