homeostasis/metabolism
• serum bicarbonate is significantly reduced
• acid loading by adding ammonium chloride to drinking water leads to a further drop on serum bicarbonate
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• elevation of serum TSH after P14
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• mice show decreased intrathyroidal concentrations of both thyroglobulin-bound and free thyroid hormones (T4 and T3) suggesting defective thyroglobulin iodination and thyroid hormone biosynthesis rather than impaired secretion
• reduction of T4 is more severe than of T3
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• low serum T4 levels at P14
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• low T3 levels after P14
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endocrine/exocrine glands
• thyroid shows enlarged follicles with excess colloid lined by normal or tall follicular epithelium
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• goiter is evident from P14 onwards, with 1.7-fold increase in thyroid weight at P14 and 21.5-fold increase at P90
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• mice are hypothyroid
• males supplemented with 30 ug iodide/day show partial reversal of hypothyroidism, with reduced TSH and increased T3 levels, and after 6 weeks of treatment, TSH and T3, but not T4, levels are comparable to controls
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renal/urinary system
digestive/alimentary system
• gastric acid secretion significantly reduced (46 mEq/g vs 75 mEq/g for controls)
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Mouse Models of Human Disease |
DO ID | OMIM ID(s) | Ref(s) | |
congenital hypothyroidism | DOID:0050328 |
OMIM:PS275200 |
J:325346 |