homeostasis/metabolism
• serum concentrations were significantly lower (25%) than in wild-type mice
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• peak absorption of radioactive T3 occurs 1 hour post-injection then sharply decreases in homozygotes compared to a peak in absorption at 4 hours then slow decrease in wild-type mice
• however, there is no difference in serum radioactivity at 8 hours after injection
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• serum concentrations were significantly lower (13%) than in wild-type mice
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growth/size/body
N |
• despite decreases in circulating thyroid hormone levels, growth rate is not different from wild-type
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endocrine/exocrine glands
N |
• despite decreases in circulating thyroid hormone levels no histological defects are detected in the pituitary or thyroid gland
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hearing/vestibular/ear
N |
• despite association of point mutations in this gene to deafness in humans, no hearing deficits are detected
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cardiovascular system
N |
• on a low iodide diet no difference in heart rate is detected
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