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[Changed body composition by increased total body fat content in experimentally hypothyroid rats]
Endokrinologie
|May 1, 1978
Summary
Hypothyroidism significantly increases total body fat content in rats, altering body composition. This indicates a highly disturbed lipid metabolism in thyroid hormone deficiency.
Area of Science:
- Endocrinology
- Metabolic Research
- Animal Physiology
Context:
- Thyroid hormones regulate metabolism.
- Hypothyroidism is associated with metabolic changes.
- Wistar rats are a common model for physiological studies.
Purpose:
- To investigate the impact of induced hypothyroidism on body composition in rats.
- To quantify changes in total body fat content and the fat:protein:water ratio.
- To compare the effects of different anti-thyroid treatments.
Summary:
- Three groups of male Wistar rats were rendered hypothyroid using Methimazol, Methyl-thiouracil, or radiothyroidectomy.
- All induced hypothyroid groups exhibited extreme hypothyroidism, confirmed by clinical signs, growth, cholesterol levels, and thyroid gland analysis.
- A significant increase in total body fat content was observed in all hypothyroid groups, changing the body composition ratio from 1:2:6 (fat:protein:water) to 1:1:3.
Impact:
- Demonstrates a direct link between thyroid hormone deficiency and increased body fat accumulation.
- Highlights a severely disturbed lipid metabolism in hypothyroid states.
- Provides quantitative data on body composition alterations in experimental hypothyroidism.