A Short History of Clinical Pathology

Toreson, Wilfred E.

doi:10.1093/ajcp/40.3.312b

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“…Vacuolation of the beta cells in the islets of Langerhans in human subjects or animals with experimental diabetes has been considered to represent a degenerative process due to exhaustion of the cells and has been designated as vacuolar or hydropic degeneration (Weichselbaum and Stangl, 1901;Allen, 1922;Ham and Haist, 1941;Luckens and Dohan, 1942). In subsequent years, Toreson (1951), Lazarus andVolk (1957, 1958 a, b) have ascribed the lesion to a mere glycogen infiltration which was found in the renal tubules, myocardium or other tissues of diabetic animals as a manifestation of hyperglycemia, since glycogen was demonstrable in the vacuolated cytoplasm of beta cells with no regressive changes in their nuclei and since a similar infiltration of glycogen was also observed in the duct epithelium. In the present study the nuclei of beta cells with extensive vacuolation did show regressive changes and not infrequently contained less glycogen, while a large amount of glycogen was found in the beta cells with minimal cytoplasmic vacuolation and without nuclear degeneration.…”

Section: Discussionmentioning

confidence: 98%

Histochemical Studies on Steroid Diabetes of Guinea Pigs With Special Reference to Langerhans Islets of Pancreas

Aoki

1968

Endocrinol Japon

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The islets of Langerhans in guinea pigs with steroid-induced diabetes (by injecting 5mg of cortisol twice daily) were studied histologically and histochemically at various time intervals. The islets in those animals marked hypertrophy with hyperplasia. Hydropic degeneration and glycogen infiltration were also observed in the beta cells in various degrees. The alpha cells of the animals with prolonged severe diabetes also showed degranulation and glycogen infiltration, which had not yet been reported and represented unique findings in steroid-induced diabetes. Histochemical studies showed a definite increase of glucose-6phosphatase activity after 3 days of cortisol treatment. The activities of glucose-6-phosphate dehydrogenase and lactic dehydrogenase increased in both alpha and beta cells. In the early stage of diabetes acid phosphatase activity was either normal or slightly increased, but later decreased in both alpha and beta cells. These altered enzymatic activities returned to normal one week after cessation of steroid treatment. Several other enzymes examined histochemically showed no significant changes. The histochemical findings in the alpha and beta cells in this experiment suggest a new interpretation of the functional correlation between the two types of cells. The significance of these enzymes and their possible role in the functional activity of the islet cells are discussed.

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Section: Discussionmentioning

confidence: 98%

Histochemical Studies on Steroid Diabetes of Guinea Pigs With Special Reference to Langerhans Islets of Pancreas

Aoki

1968

Endocrinol Japon

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A Short History of Clinical Pathology

Cited by 1 publication

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Histochemical Studies on Steroid Diabetes of Guinea Pigs With Special Reference to Langerhans Islets of Pancreas

Histochemical Studies on Steroid Diabetes of Guinea Pigs With Special Reference to Langerhans Islets of Pancreas

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