INFLUENCE OF TOTAL-BODY X-IRRADIATION ON NUCLEOSIDE PHOSPHORYLASE IN RAT ERYTHROCYTES
Single-dose whole-body irradiation of rats with 100 to 1000 r inhibited erythrocyte nucleoside phosphorylase from 28 to 77% at 96 hours postirradiation. Subsequently, complete recovery of enzyme activity was observed in erythrocytes from rats exposed to 100, 250, and 500 r of x rays, partial recovery of activity after 750 r, and no recovery after 1000 r. Erythrocytes from young rats contained a higher activity of nucleoside phosphorylase, but the inhibition of enzyme activity after whole-body x irradiation was the same as in the older rat erythrocytes when compared on a per cent basis. (auth)
- Research Organization:
- Univ. of Texas, Galveston
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-18-008174
- OSTI ID:
- 4104521
- Journal Information:
- Radiation Res., Journal Name: Radiation Res. Vol. Vol: 21
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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