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Atrial specific granules of the rat heart: light microscopic staining and histochemical reactions

AJ de Bold, JJ Raymond and SA Bencosme

An investigation was carried out to determine general staining and histochemical properties of rat atrial specific granules. It was found that these granules may be demonstrated using aldehyde fuchsin after pretreatments which involve oxidation or thiosulfation. This new way of demonstrating atrial granules is compared to other staining methods in terms of sensitivity and selectivity as well as to the nature of reactive groups that may be involved in the staining reactions. No lipid or carbohydrate were detected histochemically. Overall assessment of reactions suggests that atrial granules are a site of storage for a protein or polypeptide. Some of the tests indicate that these may contain tryptophan and sulfur-containing amino acids.

Volume 26, Issue 12, pp. 1094-1102, 12/01/1978
Copyright © 1978 by The Histochemical Society


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R Eskay, Z Zukowska-Grojec, M Haass, J. Dave, and N Zamir
Circulating atrial natriuretic peptides in conscious rats: regulation of release by multiple factors
Science, May 2, 1986; 232(4750): 636 - 639.
[Abstract] [PDF]



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