Cited by 41Thyroid Disorders and TreatmentsGrowth Hormone and Insulin-like Growth FactorsThyroid and Parathyroid Surgery

Thyromimetic effects of 3,5,3'-triiodothyronine sulfate in hypothyroid rats

Santini, F, Hurd, R E, Lee, B, Chopra, I J·1993·Endocrinology

Abstract

Several parameters of the effects of thyroid hormone were examined in hypothyroid thyroidectomized (Tx) rats treated with T3 sulfate (T3S) or T3 [0.46 (low dose) or 2.3 (high dose) nmol/day for 10 days, ip]. Tx rats showed a marked degree of growth retardation, which improved significantly after treatment with both doses of T3S and T3. The mean serum GH level was markedly reduced in Tx rats, and it improved significantly to similar levels after treatment with the high dose of T3S and the low dose of T3. Type I monodeiodinase (MD) activity was markedly reduced in liver and kidney tissues of Tx rats. It increased significantly in Tx rats treated with the high dose of T3S; the latter values were similar to those observed in Tx rats treated with the low dose of T3. Hepatic and renal type I MD activities increased to supranormal levels in Tx rats treated with the high dose of T3. Cardiac outer ring (5') monodeiodination of 3',5'-diiodothyronine to 3'-monoiodothyronine was also significantly reduced in Tx rats, but it improved significantly only after treatment with the high dose of T3. Type III 5-MD activity was significantly reduced in the cerebral cortex of Tx rats. It was restored to normal in Tx rats treated with the high dose of T3S and both doses of T3. Serum TSH, markedly elevated in Tx rats, was appreciably reduced only in rats treated with the high dose of T3. In another study, significant suppression of serum TSH was observed when Tx rats were treated with T3S (11.5 nmol…

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Crossref · 10.1210/endo.133.1.8319558

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  • Preclinical studies in hypothyroid rats revealed that T3-S administered through gavage could be converted back to T3 and was capable of triggering systemic thyromimetic effects.

    “Preclinical studies done in hypothyroid rats revealed that T3-S administered through gavage could be converted back to T3 and was capable of triggering systemic thyromimetic effects (60).”

    From Emerging Therapies in Hypothyroidism (2024) · cites this paper as [60]

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Authors
Santini, F., Hurd, R. E., Lee, B., & Chopra, I. J.
Affiliations
University of California, Los Angeles (US)
Venue
Endocrinology
Published
1993-07
Volume
133
Issue
1
Pages
105-110
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W1993158686
Cited by
41
References
24
Citations by year
2023: 1 · 2022: 3 · 2021: 2 · 2019: 3 · 2018: 1 · 2015: 1 · 2014: 2 · 2013: 2
FWCI
1.20
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion)
Funders
  • National Institutes of Health (5r01dk016155-19, 2s07rr005354-31)
  • National Institute of Diabetes and Digestive and Kidney Diseases (DK-16155)
  • National Center for Research Resources (NSS2-S07-RR-05354)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Thyroid Disorders and Treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Growth Hormone and Insulin-like Growth Factors
  • Health Sciences › Medicine › Surgery › Thyroid and Parathyroid Surgery
Keywords
triiodothyronine, hypothyroidism, thyroidectomy, growth retardation, growth hormone, type I deiodinase, type III deiodinase, 3,5-diiodothyronine, thyroid-stimulating hormone, cerebral cortex, liver, kidney
MeSH terms
Animals, Hypothyroidism, Iodide Peroxidase, Kidney, Kinetics, Liver, Male, Growth Hormone, Thyroidectomy, Thyrotropin, Triiodothyronine, Rats, Sprague-Dawley, Rats

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