Table 4. EPC number in peripheral blood from animals of different groups.

	Group	Baseline (n = 6)	0 h (n = 6)	24 h (n = 6)	72 h (n = 5–6)	168 h (n = 5–6)
CD34+KDR+ cells(cells/ml)	Con	1164±799	955±536	1238±643	1166±685	1032±634
	ARDS	1145±703	975±637	1094±416	1176±603	1024±330
	G-CSF	1160±440	966±539	1430±1011	4097±1468*	5715±3505*
	iNO	1151±277	955±375	2163±454*	2198±671*	2100±794* †
CD34+KDR+CD133+ cells (cells/ml)	Con	424±314	478±381	497±268	400±216	455±287
	ARDS	404±275	423±278	453±273	366±191	313±198
	G-CSF	416±225	377±127	451±230	797±323	901±506*
	iNO	435±125	382±74	1140±494* †	822±321	739±303
KDR+CD133+ cells(cells/ml)	Con	486±364	509±375	544±303	498±276	507±227
	ARDS	459±300	356±202	429±244	468±249	406±281
	G-CSF	446±264	360±182	553±375	867±488	1420±572*
	iNO	514±175	442±113	1302±413* †	1056±347*	952±272*

Values are means ± SD.

^* P<0.05 vs. ARDS;

^† P<0.05 vs. G-CSF.