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Studies with radioactively labelled fibrinogen given to elderly and young injured
patients subjected to reparative surgery showed that:—
- 1.The actual amount of labelled protein (mg. per kg.) catabolized per day was increased to between 2 and 3 times normal, in both the young and elderly patients.
- 2.In elderly injured patients more radioactivity was found outside the active circulation than found outside the circulation of young injured patients or in normal persons. This radioactivity outside the circulation had a longer biological half-life than that of the plasma fibrinogen, suggesting that the non-circulating radioactivity was attached to fibrin.
- 3.The rate of synthesis of fibrinogen was increased in both the young and elderly injured patients.
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© 1970 Published by Elsevier Inc.