Table 1. Enzyme activities in the plasma at different time intervals after single and repeated blast exposures at 21 psi with and without protective vest.

	AST (Units/L)	ALT (Units/L)	LDH (Units/L)	CK (Units/L)
Sham	144.57±52.86	44.14±22.52	935.14±384.36	734.00±469.38
1 blast, 6 h, no vest	2739.33±1281.63*	5786.00±3845.01*	31776.33±24597.79*	2318.33±894.89*
3 blasts, 1 h, no vest	2708.33±1490.17*	3924.33±2049.52*	26399.67±8146.89*	4765.66±27.37*
3 blasts, 6 h, no vest	2940.66±1075.15*	5216.50±2165.76*	32135.17±4153.18*	1855.83±968.52*
3 blasts, 6 h, with vest	147.20±63.40	91.00±44.23	978.80±333.81	676.80±267.65
3 blasts, 24 h, no vest	392.80±156.25*	1133.40±1010.11*	2627.60±2307.97	548.20±270.07

Mean ± SEM values of different blast exposure groups were compared to those of sham. AST, aspartate aminotransferase; ALT, alanine aminotransferase; LDH, lactate dehydrogenase; CK, creatine kinase; Statistical analysis was carried out by ANOVA test (n = 7).

^*p<0.05.