IDENTIFICATION OF GLYCOGEN IN ELECTRON MICROGRAPHS OF THIN TISSUE SECTIONS

Revel , Jean Paul; Napolitano , Leonard; Fawcett , Don W.

doi:10.1083/jcb.8.3.575

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Article| December 01 1960

IDENTIFICATION OF GLYCOGEN IN ELECTRON MICROGRAPHS OF THIN TISSUE SECTIONS

Jean Paul Revel,

Jean Paul Revel

From the Departments of Anatomy, Harvard Medical School, Boston, and the University of Pittsburgh, School of Medicine. The work was initiated while the authors were at the Anatomy Department, Cornell University Medical College, New York City. Dr. Revel is Post Doctoral Fellow of the Helen Hay Whitney Foundation, 1957–1958

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Leonard Napolitano,

Leonard Napolitano

From the Departments of Anatomy, Harvard Medical School, Boston, and the University of Pittsburgh, School of Medicine. The work was initiated while the authors were at the Anatomy Department, Cornell University Medical College, New York City. Dr. Revel is Post Doctoral Fellow of the Helen Hay Whitney Foundation, 1957–1958

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Don W. Fawcett

From the Departments of Anatomy, Harvard Medical School, Boston, and the University of Pittsburgh, School of Medicine. The work was initiated while the authors were at the Anatomy Department, Cornell University Medical College, New York City. Dr. Revel is Post Doctoral Fellow of the Helen Hay Whitney Foundation, 1957–1958

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Author and Article Information

Jean Paul Revel

From the Departments of Anatomy, Harvard Medical School, Boston, and the University of Pittsburgh, School of Medicine. The work was initiated while the authors were at the Anatomy Department, Cornell University Medical College, New York City. Dr. Revel is Post Doctoral Fellow of the Helen Hay Whitney Foundation, 1957–1958

Leonard Napolitano

From the Departments of Anatomy, Harvard Medical School, Boston, and the University of Pittsburgh, School of Medicine. The work was initiated while the authors were at the Anatomy Department, Cornell University Medical College, New York City. Dr. Revel is Post Doctoral Fellow of the Helen Hay Whitney Foundation, 1957–1958

Don W. Fawcett

From the Departments of Anatomy, Harvard Medical School, Boston, and the University of Pittsburgh, School of Medicine. The work was initiated while the authors were at the Anatomy Department, Cornell University Medical College, New York City. Dr. Revel is Post Doctoral Fellow of the Helen Hay Whitney Foundation, 1957–1958

Received: May 23 1960

1960

J Biophys and Biochem Cytol (1960) 8 (3): 575–589.

https://doi.org/10.1083/jcb.8.3.575

The electron microscopic appearance of glycogen has been studied in the organs of several animal species. Glycogen almost always appears as roughly circular granules from 150 to 400 A in diameter. The intrinsic electron density of glycogen varies from tissue to tissue; however, treatment with lead hydroxide as described by Watson deeply stains the granules. Glycogen pellets were isolated from some of the tissues studied by centrifugation. Such pellets were shown to be glycogen by chemical and histochemical criteria. When thin sections of the pellet are examined under the electron microscope they can be seen to consist of densely packed granules similar to those found in the intact tissues. Such pellets are also stained for electron microscopy by short exposure to lead hydroxide.

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