in order to determine the relative importance of the two proteinase inhibitors , alpha 1-proteinase inhibitor ( alpha 1 pi ) and alpha 2-macroglobulin ( alpha 2m ) , in defending the infant lung against proteolytic attack , we measured concentrations of alpha 1pi and alpha 2m in both serum and lung secretions of infants intubated for respiratory insufficiency .
C0024109
lung
C0034088
respiratory insufficiency