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EP0385118A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Use of compounds containing or binding sialic acid to neutralize bacterial toxins

Assignee: Snow Brand Milk Products Co Ltd
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Filing: 1990-01-30
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Granted: —
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Expires: 2010-01-30
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Abstract

Abstract Sialic acid binding proteins, sialic acid-­binding peptides and sialic acid containing oligo­saccharides that are effective components of a baterial enterotoxin neutralizer according to the present invention all interfere with the binding of enterotoxins, including the cholera toxin, to receptors so as to exert an effect of neutralziing the toxicity, thus being utilized as an effective neutralizer. Furthermore, all the components according to the present invention are confirmed to be safe and, moreover, available cheaply and abundantly from waste matter produced during processes of cow's milk or the like, which makes the present invention economically advantageous for practical use.

Inventors

  • 👤 Hiroko 503 De Le Sion Kyowa Isoda
  • 👤 Yoshihiro Kawasaki
  • 👤 Morimasa Tanimoto
  • 👤 Shunichi Dosako
  • 👤 Tadashi Idota

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 08:06
CPC Classifications
A; A61; A61K; A61K38/00; A61K38/16; A61K38/17; A61K38/40; A61K31/00; A61K31/70; A61K38/1703; A61K38/1709; A61P; A61P31/00; A61P31/04; A61P39/00; A61P39/02; Y; Y02; Y02A; Y02A50/00; Y02A50/30

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 47 words
A bacterial enterotoxin neutralizer which contains as an effective component(s) one or more kinds of sialic acid-containing substances selected from the group consisting of sialic acid-binding proteins derived from cow's milk, sialic acid-binding peptides obtained by treating said sialic acid-binding proteins with protease and sialic acid-containing oligosaccharides.
Claim 2
Dependent Claim 47 words
A bacterial enterotoxin neutralizer which contains as an effective component(s) one or more kinds of sialic acid-containing substances selected from the group consisting of sialic acid-binding proteins derived from cow's milk, sialic acid-binding peptides obtained by treating said sialic acid-binding proteins with protease and sialic acid-containing oligosaccharides.
Claim 3
Dependent Claim 20 words
A bacterial enterotoxin neutralizer as set forth in claim 1, in which said sialic acid-binding protein is lactoferrin or kappa-casein.
Claim 4
Dependent Claim 19 words
A bacterial enterotoxin neutralizer as set forth in claim 1, in which said sialic acid-binding peptide is kappa-casein glycomacropeptide.
Claim 5
Dependent Claim 18 words
A bacterial enterotoxin neutralizer as set forth in claim 1, in which said sialic acid-binding oligosaccharide is sialyllactose.
Claim 6
Dependent Claim 21 words
A bacterial enterotoxin neutralizer as set forth in claim 2, which is a tablet containing 100 mg of lactoferrin per tablet.
Claim 7
Dependent Claim 27 words
A bacterial enterotoxin neutralizer as set forth in claim 3, which is a powdered preparation for injection, containing said kappa-casein glycomacro­peptide at a rate of 10% (w/v).
Claim 8
Dependent Claim 41 words
A bacterial enterotoxin neutralizer as set forth in claim 1, which is a capsular preparation prepared by mixing ganglioside G D3 , lactoferrin, kappa-­casein glycomacropeptide and sialyllactose, at rates of 10%, 50%, 30% and 10%, respectively, and granulating the resultant mixture.
Claim 9
Independent Claim 58 words
A method of neutralizing bacterial enterotoxins characterized in that a sialic acid-containing sub­stance(s) selected from the group consisting of sialic acid-binding proteins, sialic acid-binding peptides obtained by treating said sialic acid-binding proteins with protease and sialic acid-containing oligosaccharide is(are) administered singly or as a mixture at a dose of 6 to 300 mg par day for an adult.
Claim 10
Independent Claim 58 words
A method of neutralizing bacterial enterotoxins characterized in that a sialic acid-containing sub­stance(s) selected from the group consisting of sialic acid-binding proteins, sialic acid-binding peptides obtained by treating said sialic acid-binding proteins with protease and sialic acid-containing oligosaccharide is(are) administered singly or as a mixture at a dose of 6 to 300 mg par day for an adult.

References Cited (Backward Citations)

JPS5572819A Cited
JPS56500138A Cited
JPS59918A Cited
JPS59181497A Cited
JPS59184197A Cited
JPS6112695A Cited
JPS61145200A Cited
JPS63284199A Cited
JPS63284133A Cited

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