Alternation and Significance of P-selectin in Plasma During Rats Traumatic Shock / 中国医师杂志

ABSTRACT

Objective To investigate the alternation and significance of P-selectin in plasma during traumatic shock.Methods 24 rats were randomly assigned to three groups;control group, shock group and L-Arg group. The rats were subjected to induce traumatic shock ,and to determine the plasma P-selectin with ELISA after shock 30 min and 4 hour.Results P-selectin was expression in plasma of normal rats. 30 min after shock, P-selectin in sera was higher than in the control nontraumatized,but no statistical significance;4h after shock, the P-selectin was significantly increased. The P-selectin of L-Arg group in L-Arg group was obviously decreased than those of shock group.Conclusions Traumatic shock could induce P-selectin hyperexpression.It is related to remarkable microcirculatory perturbation and endothelial dysfunction during shock.L-Arg maybe decrease the expression of P-selectin through promoting the synthesis of the endothelial NO.