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PMID: 6203875 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't

Histochemical identification of side chain substituted O-acylated sialic acids: the PAT-KOH-Bh-PAS and the PAPT-KOH-Bh-PAS procedures.

The Histochemical journal ·Vol. 16 ·No. 6 ·1984-06-00 ·Pages 623-39

Reid PE, Dunn WL, Ramey CW, Coret E, Trueman L, Clay MG

Abstract

Two new methods, based on the original periodic acid-Thionin Schiff-saponification-periodic acid-Basic Fuchsin Schiff (PAT-KOH-PAS) technique of Culling et al. (1976), have been devised for the histochemical identification of side-chain O-acylated sialic acids. In the first of these, the periodic acid-Thionin Schiff-saponification-borohydride reduction-periodic acid-Basic Fuchsin Schiff (PAT-KOH-Bh-PAS) procedure, the specificity of the original PAT-KOH-PAS technique was improved by: (a) extending, when necessary, the initial period of periodate oxidation, (b) increasing the period of exposure to Thionin Schiff reagent from 30 min to 4 h, (c) using a Thionin Schiff reagent prepared by a different method, (d) interposing a borohydride reduction step between the saponification and PAS steps and, (e) extending the period of oxidation in the final PAS step from 10 to 30 min. In the second procedure, the periodic acid-phenylhydrazine-Thionin Schiff-borohydride reduction-periodic acid-Basic Fuchsin Schiff (PAPT-KOH-Bh-PAS), based on the periodic acid-phenylhydrazine-Schiff (PAPS) technique of Spicer (1961), blue Thionin Schiff staining was confined to sialic acid residues with oxidizable side chain vicinal diols by interposing a treatment with 0.5% (w/v) aqueous phenylhydrazine hydrochloride for 2 h at room temperature between the initial periodic acid oxidation and the Thionin Schiff steps of the PAT-KOH-Bh-PAS procedure. These procedures are discussed within the general framework of the methods available for the histochemical identification of side-chain O-acylated sialic acids.

MeSH Terms
Animals Borohydrides Gastric Mucosa/metabolism Histocytochemistry Humans Intestinal Mucosa/metabolism Liver/metabolism Oxidation-Reduction Periodic Acid-Schiff Reaction Phenylhydrazines Rabbits Rats Sialic Acids/analysis Staining and Labeling Sulfhydryl Compounds Tissue Distribution
Chemicals
Borohydrides Phenylhydrazines Sialic Acids Sulfhydryl Compounds sodium borohydride thioacetic acid
Authors & Affiliations
6 authors, click to expand affiliations / ORCID
Reid P E
Dunn W L
Ramey C W
Coret E
Trueman L
Clay M G
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40 references, click to expand
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Article Info
Journal
The Histochemical journal
Abbr.
Histochem J
ISSN
0018-2214
DOI
10.1007/BF01003390
Published
1984-06-00
Pages
623-39
Language
English
Region
Netherlands
NLM ID
0163161
Subset
IM
External Links
PubMed source DOI: 10.1007/BF01003390
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