Tyrosinase Immobilized within Artificial Cells for Detoxification in Liver Failure: Ii. in Vivo Studies in Fulminant Hepatic Failure Rats

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Abstract
Galactosamine-induced fulminant hepatic failure rats were used for in vivo studies of the removal of tyrosine and total free phenol by means of hemoperfusion over immobilized tyrosinase within artificial cells. The elevated plasma tyrosine level was decreased to about half the value after one hour of hemoperfusion. The studies of tyrosine clearance suggest that it is efficient and remains constant throughout the one-hour hemoperfusion. In those galactosamine-induced fulminant hepatic failure rats with increased total free phenol levels hemoperfusion over tyrosinase artificial cells significantly lowered the level.