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  • Title: Development of glucose active transport in embryonic chick intestine. Influence of thyroxine and hydrocortisone.
    Author: Black BL.
    Journal: Comp Biochem Physiol A Comp Physiol; 1988; 90(3):379-86. PubMed ID: 2901307.
    Abstract:
    1. Glucose active transport is detectable in 12-day-old embryonic chick duodenum and increases at least 11-fold after 4 days of postnatal life. 2. Glucose active transport develops at the in vivo rate in 72-hr cultures of 14-day embryonic duodenum. 3. In the presence of either 1 nM thyroxine or 1 microM hydrocortisone in vitro, glucose active transport reaches levels approximately 200% of control values (equivalent to 18-19 day levels in vivo). 4. Thyroxine and hydrocortisone act by different mechanisms based on their antagonistic interaction and differences in time course of action, requirement for protein synthesis and modulation by extracellular calcium.
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