The effects of inanition and The effects of inanition and malnutrition upon growth and structure effectsofinaniti00jack Year: 1925 mm y Fig. 114.—A portion of a section of the thyroid gland in an albino rat () held at constant body weight by underfeeding from 3 to 10 weeks of age. This area shows advanced stages of follicular degeneration, with cells in various stages of degeneration and disintegration. There is a .tendency to desquamation of the epithelium, with destruction of the colloid and obliteration of the follicular lumen. Some of the nuclei appear karyolytic, although karyopyc
The effects of inanition and The effects of inanition and malnutrition upon growth and structure effectsofinaniti00jack Year: 1925 mm y Fig. 114.—A portion of a section of the thyroid gland in an albino rat () held at constant body weight by underfeeding from 3 to 10 weeks of age. This area shows advanced stages of follicular degeneration, with cells in various stages of degeneration and disintegration. There is a .tendency to desquamation of the epithelium, with destruction of the colloid and obliteration of the follicular lumen. Some of the nuclei appear karyolytic, although karyopyc- nosis predominates and karyorrhexis frequently appears. X750. Technique, etc. as in Fig. 113, which is to be compared. (Jackson '16.) ('20) described various grades of atrophic regressive changes in the thyroid follicles of hibernating bats, involving in extreme cases a complete destruction of the follicles. Upon the awakening in the spring, new follicles develop from the remaining interfollicular cell-masses. In hibernating hedgehogs, similar but less marked changes were found.
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