After making 120 albino mice of both sexes skin contused and then killing them from 2 minutes to 4 hours in batches, we observed the activity changes of ANAE, ATP-ase, ACP and AKP.

• 发现挫伤2分钟内受伤局部真皮胶元纤维中有ANAE酶活性增高,但此酶在死后挫伤的小白鼠也出现阳性,因此它不能区别生前与死后挫伤,但作为挫伤的标志可在死后较长期存在。 ATP酶受伤后1小时升高,ACP酶约2小时后、AKP酶约4小时后升高。