Abstract
The liposomal form of isonicotinic acid hydrazide conjugate with oxidized dextran (liposomeencapsulated dextrazide, LEDZ) injected intraperitoneally for 3 months to BALB/c mice with chronic BCG-induced granulomatosis (6 month after infection) down-regulated activities of protease (MMP) and antiprotease (TIMP-1, TIMP-2, α2-macroglobulin) components of the regulation system, which indicates a drop of destructive and inflammatory potential of BCGinduced granulomatosis. The persistent enhanced hyaluronidase activity in the liver and its reduced (normalized to control level) activity in the lungs after administration of LEDZ indicates a greater hydrolysis of hyaluronan in the liver than in the lungs. LEDZ-induced changes in MMP/TIMP system in mouse liver and lungs are characterized with relative elevation of protease activity over that of antiprotease one.
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