Document Detail

Passive cutaneous anaphylaxis in guinea pigs elicited by gastric absorption of dextran induced by acetylsalicylic acid.
MedLine Citation:
PMID:  965109     Owner:  NLM     Status:  MEDLINE    
Passive cutaneous anaphylaxis (PCA) was elicited in guinea pigs sensitized with rabbit antidextran by the absorption of dextran macromolecules from the stomach induced by intragastric acetylsalicylic acid. The gastric contents had a pH sufficiently low to maintain the acid mainly in the unionized form since it is the latter which alters gastric permeability. The acid concentration required to induce PCA was below that which caused mucosal cell loss or bleeding. The maximal molecular weight of the absorbed dextran was approximately 25,000. Dextran was chosen as antigen because of its well-characterized physical and immunological properties. It is suggested that ingestion of acetylsalicylic acid may contribute to sensitization and allergic reactions to antigenic food materials by facilitating their absorption from the stomach.
G Flemström; N V Marsden; W Richter
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International archives of allergy and applied immunology     Volume:  51     ISSN:  0020-5915     ISO Abbreviation:  Int. Arch. Allergy Appl. Immunol.     Publication Date:  1976  
Date Detail:
Created Date:  1976-11-21     Completed Date:  1976-11-21     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0404561     Medline TA:  Int Arch Allergy Appl Immunol     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  627-36     Citation Subset:  IM    
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MeSH Terms
Aspirin / pharmacology*
Dextrans / metabolism*
Gastric Mucosa / metabolism*
Guinea Pigs
Molecular Weight
Passive Cutaneous Anaphylaxis*
Reg. No./Substance:
50-78-2/Aspirin; 9004-54-0/Dextrans

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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