Tryptophan aminotransferase activity in rat liver

Tryptophan aminotransferase activity in rat liver.

By using an antiserum raised against rat liver tyrosine aminotransferase, it was shown that about 60% of tryptophan aminotransferase activity in rat liver extracts is catalysed by this enzyme. Induction of tryptophan aminotransferase activity by intraperitoneal injections of tryptophan or triamcinolone can be entirely attributed to the effects of these agents on tyrosine aminotransferase. The o...

Determination of tryptophan pyrrolase activity in rat liver homogenates.

Tryptophan catabolism by tryptophan pyrrolase in rat liver. The effect of tryptophan loads and changes in tryptophan pyrrolase activity.

We investigated how changes in tryptophan pyrrolase activity and tryptophan loads affect the breakdown of tryptophan was estimated by injecting rats with [ring-2-14-C]tryptophan and measuring respiratory 14-CO2. We concluded, contrary to previous reports, that induction of tryptophan pyrrolase definitely will increase the rate of tryptophan breakdown. Tryptophan loads also increase tryptophan b...

Tryptophan Catabolism by Tryptophan Pyrrolase in Rat Liver THE EFFECT OF TRYPTOPHAK LOADS AKD CHAKGES IN TRYPTOPHAN PYRROLASE ACTIVITY*

We investigated how changes in tryptophan pyrrolase activity and tryptophan loads affect the breakdown of tryptophan by tryptophan pyrrolase. Breakdown of tryptophan was estimated by injecting rats with [ring-ZJ%]tryptophan and measuring respiratory 14C02. We concluded, contrary to previous reports, that induction of tryptophan pyrrolase definitely will increase the rate of tryptophan breakdown...

Antioxidant Activity of Eclipta alba L. in Normal Rat Liver

The present study investigates the antioxidant potential of the ethyl acetate fraction of the aerial parts Eclipta alba L. Hassk (EAEA) which was widely used as hepatoprotective plant. EAEA was orally administered at doses of 50, 100 and 200 mg/kg for 7 days in male Charles Foster rats. The extent of hepatoprotective potential of E . alba was studied by assessing the biochemical para...