THE LIFE CYCLE OF HEN ERYTHROCYTES DETERMINED BY LABELLING WITH RADIOACTIVE PHOSPHORUS
When radioactive phosphorus is injection into a hen the isotope is incorporated in the red cell deoxyribo nucleic acid (DNX) during the DNA formation only, prior to mitosis. One day after the injection the red cell DNA in the blood stream is inactive, thus indicating the metabolic stability of the DNA in the mature cells. A few days later, the labelled cells appear in the blood tion which the cells spend in the bone marrow. About 30 days later a precipitous fall in the specific activity of the DNA in the blood stream indicates that the strongly radioactive cells which were formed during the first days after the injection terminates their lifespan and disappears from the blood stream. The average time s. (auth)
- Research Organization:
- Copenhagen Univ.
- NSA Number:
- NSA-13-006220
- OSTI ID:
- 4266447
- Report Number(s):
- A/CONF.15/P/1512
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-59
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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