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Published on: June 6, 2014
THE VALUE OF MALLORY'S CONNECTIVE TISSUE STAIN FOR THE DEMONSTRATION OF VARIATION IN THYROID COLLOID
1Pathological Department of the University of Wisconsin, Madison.
Insights
Mallory
Area of Science:
- Histology and Biochemistry
- Thyroid Physiology
Background:
- The thyroid gland's colloid stores iodine, crucial for hormone synthesis.
- Understanding iodine dynamics in the thyroid is vital for metabolic research.
Purpose of the Study:
- To evaluate Mallory's stain for detecting thyroid colloid iodine.
- To investigate the relationship between heart activity and thyroid iodine levels.
Main Methods:
- Utilized Mallory's connective tissue stain with Zenker's fluid or bichloride of mercury fixation.
- Correlated staining results with chemical iodine determinations, iodine feeding studies, and in vitro experiments.
Main Results:
- Mallory's stain effectively demonstrates the presence or absence of iodine in thyroid colloid.
- Increased heart activity correlated with a significant loss of thyro-iodine from the thyroid colloid.
Conclusions:
- Mallory's stain is a viable method for assessing thyroid iodine content in experimental settings.
- Thyroid iodine levels are inversely related to cardiac activity, suggesting a physiological link.
- The technique shows potential for future thyroid research, though not immediately for clinical application.
Abstract:
1. Mallory's connective tissue stain used in connection with fixation of tissue by Zenker's fluid or bichloride of mercury demonstrates the presence or absence of iodin in the thyroid colloid, as is evidenced by parallel chemical determinations, iodin feeding, and test-tube experiments. 2. Greatly increased activity of the heart is accompanied by a loss of thyro-iodin from the colloid of the thyroid. 3. This method, while apparently not adaptable to clinical use, may prove of value in further experimental work on the thyroid.
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