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  • Title: Biodistribution of 99mTc-O4Na changes in adult rats whose mothers were malnourished during lactation.
    Author: Passos MC, Ramos CF, Dutra SC, Bernardo-Filho M, Moura EG.
    Journal: J Nucl Med; 2002 Jan; 43(1):89-91. PubMed ID: 11801710.
    Abstract:
    UNLABELLED: 99mTc-O4Na biodistribution changes in malnourished adults rats. We evaluated this biodistribution in rats whose mothers were malnourished during lactation. METHODS: On the first day of lactation the mothers were separated into 3 groups: control (C) group, protein-restricted (PR) group, and energy-restricted (ER) group. After weaning all pups received a control diet until 60 d, when they were injected with 99mTc-O4Na and killed after 30 min. We evaluated the absolute percentage injected dose (%ID) and the %ID per gram (%ID/g) in thyroid, stomach, heart, bone, kidney, lung, liver, brain, and testes. RESULTS: In the PR group, the %ID and %ID/g were significantly higher in the stomach and lower in the thyroid than in the C group. In the ER pups, the %ID and %ID/g were higher in the liver, stomach, and testes than in the C group. CONCLUSION: The mother's nutritional status during lactation affects the biodistribution of 99mTc-O4Na in the offspring, and this condition must be considered when nuclear medicine examinations are indicated.
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