Comparative Studies on the Pancreatic Islets

Epple, August

doi:10.1507/endocrj1954.15.107

Cited by 20 publications

(1 citation statement)

References 47 publications

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“…The largest distribution of islets had been reported in the head of the human pancreas (Ciark, 1913 ). Whilst the greatest concentration has been reported in the body of the rat's pancreas (Overholser, 1925) and in the pancreas of rabbit (Jaffe, 19 51) the greatest distribution occurs in the tail of the avian pancreas in all species investigated so far (Epple, 1968).…”

Section: Islet Distribution In Regions Of Pancreasmentioning

confidence: 99%

Quantitative estimation of islet tissue of pancreas in possums (Trichosurus vulpecula)

Edwin

1982

Journal of Zoology

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The pancreas of six possums, both male andi female were isolated. The relationship between the weight of the pancreas and the weight of the animal was then calculated. Sections were stained with haemotoxylin and eosin and islet tissue mass estimated using a linear scanning technique in each of the regions of the pancreas: head neck, body and tail. A uniform distribution was shown. The relationship between the average islet mass and body weight was calculated. Sections were stained with aldehyde fuchsin in each of the regions, head, neck, body and tail using a Wild‐M501 semiautomatic sampling microscope. Beta Grimelius' silver nitrate stain in each of the regions: head, neck, body and tail. The alpha cells were also estimated by using a Wild‐M501 sampling microscope and a uniform distribution was shown.

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Section: Islet Distribution In Regions Of Pancreasmentioning

confidence: 99%

Quantitative estimation of islet tissue of pancreas in possums (Trichosurus vulpecula)

Edwin

1982

Journal of Zoology

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Pancreatic islets of the Coturnix quail. A light and electron microscopic study with special reference to the islet organ of the splenic lobe

Smith

1974

Anat. Rec.

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The endocrine pancreas of the Coturnix quail consists of two major islet configurations. Islets containing B and D cells are found in all four lobes of the pancreas, but islets consisting of A and D cells occur with regularity only in the third and splenic lobes. Pancreatic islets comprise only a small percentage of the tissue volume in the ventral, dorsal and third lobes. In the splenic lobe, however, one or more A islets surrounded by numerous small B islets may constitute more than 50% of the total cellular mass.Secretory granules of the B cells are aldehyde fuchsin-positive and show three distinct profiles at the ultrastructural level. The PTAH-positive A granules are usually round or teardrop shaped and are of uniform electron density. D cells are argyrophilic; their secretory granules are of heterogeneous densities. These cells are located at the peripheries of the B islets, but are freely dispersed in the A islets. At the electron microscopic level, Type IV cells, previously not reported in avian islets, are found mainly in the A islets of this species. This unusual cell type contains granules of differing densities, but, unlike those of the D cell, they are often rod-shaped and biconcave in profile.

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Growth Pattern of Pancreatic Islets in Animals

Hellerström

1977

The Diabetic Pancreas

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Comparative Studies on the Pancreatic Islets

Cited by 20 publications

References 47 publications

Quantitative estimation of islet tissue of pancreas in possums (Trichosurus vulpecula)

Quantitative estimation of islet tissue of pancreas in possums (Trichosurus vulpecula)

Pancreatic islets of the Coturnix quail. A light and electron microscopic study with special reference to the islet organ of the splenic lobe

Growth Pattern of Pancreatic Islets in Animals

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