both experimental protocols showed that serum elastase-inhibiting capacity ( primarily caused by alpha 1-proteinase inhibitor ) is more susceptible to inactivation by aqueous solutions of cigarette smoke than is leukocyte elastase , suggesting that elastase inhibition ( rather than elastase activity ) may be predominantly suppressed by cigarette smoke inhalation in vivo .
C0064833
leukocyte elastase
C0030306
elastase