Assertion: putrescine modified catalase | /r/CapableOf | maintain its activity
Facets:
value: after parenteral administration
type: TEMPORAL
Source sentences:
text: In this connection, it must be mentioned that the putrescine-modified catalase has been reported to exhibit an augmented blood-brain barrier permeability property while maintaining its activity comparable to that of native catalase with intact delivery to the central nervous system after parenteral administration .