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Thyrotropin secretion patterns in health and disease
Ferdinand Roelfsema1, Johannes D Veldhuis
1Leiden University Medical Center, Department of Endocrinology and Metabolic Diseases, PO Box 9600, 2300 RC Leiden, The Netherlands. f.roelfsema@lumc.nl.
Endocrine Reviews
|April 12, 2013
Summary
This review explores the 24-hour thyroid-stimulating hormone (TSH) concentration profiles, examining how diurnal rhythms are regulated in health and disease. Novel analytical methods offer new insights into thyroid axis function under various pathophysiological conditions.
Area of Science:
- Endocrinology
- Neuroendocrinology
- Metabolic Research
Background:
- Thyroid hormones are crucial for metabolism, development, and growth.
- The hypothalamo-pituitary-thyroid axis precisely regulates thyroid hormone levels.
- Existing knowledge largely stems from animal studies and human genetic mutations.
Purpose of the Study:
- To review the hypothalamo-pituitary-thyroid axis, focusing on 24-hour serum TSH concentration profiles.
- To analyze TSH diurnal rhythms in physiological and pathophysiological states.
- To explore novel techniques for assessing TSH regulation.
Main Methods:
- Review of existing literature on the hypothalamo-pituitary-thyroid axis.
- Analysis of 24-hour serum TSH concentration profiles.
- Application of advanced analytical techniques like operator-independent deconvolution and approximate entropy.
Main Results:
- Diurnal TSH rhythms are altered in various conditions including obesity, hypothyroidism, pituitary diseases, psychiatric, and neurological disorders.
- Novel techniques enable precise analysis of TSH concentration profiles.
- These methods provide indirect insights into the regulatory mechanisms of the thyroid axis.
Conclusions:
- Understanding TSH diurnal rhythms is key to comprehending thyroid axis regulation.
- Advanced analytical techniques offer valuable tools for studying thyroid pathophysiology.
- Further research using these methods can illuminate disease mechanisms and inform therapeutic strategies.
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