The development of the pharynx of the guinea pig with special emphasis on the fate of the ultimobranchial body

Klapper, C.E.

doi:10.1002/aja.1000790303

Cited by 9 publications

(2 citation statements)

References 17 publications

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“…Politzer [1936] and Norris [1937] believed that the UBB converts into thyroid parenchyma. It has been reported that in the guinea pig [Klapper, 1946], mouse [ Wetzel and Wollman, 1969] and rat Wollman and Neve, 1971;Krupp, 1972;Calvert, 1975] the UBB gives rise to ultimobranchial cysts. Cordier et al [1976] believed that these cysts in dwarf mice are the endodermal remnants of the UBB after the migration of parafollicular cells.…”

Section: Unusual Folliclesmentioning

confidence: 99%

Thyroid Calcitonin Cells and Unusual Follicles in the Fox

Srivastav¹,

Swarup²

1982

Cells Tissues Organs

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The thyro-parathyroid complex of foxes was cut into serial sections. For demonstration of calcitonin (C) cells the sections were stained by hematoxylin and eosin, PAS-hematoxylin, Davenport’s silver impregnation and lead hematoxylin. The C cells are oval and rounded in shape and unevenly distributed. The isthmus and the parathyroid glands are completely devoid of C cells. Certain unusual follicles are seen in the thyroid of the fox.

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Section: Unusual Folliclesmentioning

confidence: 99%

Thyroid Calcitonin Cells and Unusual Follicles in the Fox

Srivastav¹,

Swarup²

1982

Cells Tissues Organs

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“…However, in a variety of animals, includ ing homo, a third cell population, obviously differing from the two mentioned, has been described [e.g., Woilman and Neve, 1971b;Godwin, 1937;Van Dyke, 1945;KetelbantBallase and Neve, 1976;Klapper, 1946;Fraser and Duckworth, 1979]. This cell population forms the lining of follicular structures usually referred to as ultimobranchial follicles [Neve and Wollman, 1971;Petko, 1975], ultimobranchial cysts [Sato et al, 1966;Zelander and Kirkeby, 1977] or second kind of follicles [ Wetzel and Woilman, 1969;Ketelbant-Ballase and Neve, 1976].…”

Section: Introductionmentioning

confidence: 99%

Morphology of the Second Kind of Follicle in the Guinea Pig Thyroid Gland

Juhl¹

1981

Cells Tissues Organs

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The second type of follicle (S follicle) was studied in the thyroid gland of young and mature guinea pigs. A marked activity to non-specific esterase was used as a marker system for the S follicle. Usually a single S follicle was situated in the upper central two-thirds of each lobe occupying 0.5–2.7 mm of the length of the lobe. The S follicle could in both animal groups be divided into three parts, an upper, a middle, and a lower part. The upper tubular part consisted of cuboidal and cylindrical, strong-reacting cells completely separated from the thyroid follicles by connective tissue. The middle part was further subdivided into an irregular follicle without contact to the thyroid follicles, and a distended follicle with several contact areas to the thyroid follicles. An increasing amount of flattened, weak-reacting cells interpreted as thyroid follicle cells were encountered in the S follicle wall adjacent to the contact areas. In young animals the lower part had a tubular appearance like that seen in the upper part, while the lower part of the S follicle in mature animals were more follicle like.

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Effects of vitamin A deficiency on ultimobranchial tissue in the rat thyroid

Krupp¹

1972

Anat. Rec.

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Ultimobranchid follicles in the thyroid glands of young Wistar rats, 4 to 12 weeks old, are lined by non-keratinized stratified squamous epithelium and contain desquamated cellular material. Mitoses are observed in the epithelium of these follicles which are variable in size, shape and frequency. Thyroid glands of young vitamin A deficient rats also contain ultimobranchid follicles. These follicles differ from those found in animals on a stock diet in that the stratified squamous epithelium produces keratinized concentric whorls of non-nucleated luminal debris. After placing vitamin A deficient rats on a stock diet desquamated cellular material is no longer keratinized and resembles that seen in the control animals. Vitamin A deficient diet apparently keratinizes the stratified squamous epithelium of pre-existing ultimobranchid follicles rather than solely having a metaplastic effect on thyroid-like follicles of ultimobranchid tissue origin.

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The development of the pharynx of the guinea pig with special emphasis on the fate of the ultimobranchial body

Cited by 9 publications

References 17 publications

Thyroid Calcitonin Cells and Unusual Follicles in the Fox

Thyroid Calcitonin Cells and Unusual Follicles in the Fox

Morphology of the Second Kind of Follicle in the Guinea Pig Thyroid Gland

Effects of vitamin A deficiency on ultimobranchial tissue in the rat thyroid

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