Endotoxins release histamine by complement activation and potentiate bacteria-induced histamine release

The histamine-releasing capability of bacterial lipopolysaccharides (LPS) was examined in human leukocyte suspensions. LPS alone did not release histamine, but it was found to enhance the histamine release caused by bacteria in basophils from persons sensitized to these bacteria. In the presence of...

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Published in:Agents and Actions 1986-04, Vol.18 (1-2), p.149-152
Main Authors: Norn, S, Jensen, C, Dahl, B T, Stahl Skov, P, Baek, L, Permin, H, Jarløv, J O, Sørensen, H
Format: Article
Language:English
Subjects:
Bacteria - immunology
Blood Physiological Phenomena
Complement Activation - drug effects
Elapid Venoms - pharmacology
Endotoxins - pharmacology
Histamine Release - drug effects
Humans
In Vitro Techniques
Lipopolysaccharides - pharmacology
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container_issue 1-2
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creator Norn, S
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description The histamine-releasing capability of bacterial lipopolysaccharides (LPS) was examined in human leukocyte suspensions. LPS alone did not release histamine, but it was found to enhance the histamine release caused by bacteria in basophils from persons sensitized to these bacteria. In the presence of serum, LPS was able to release histamine through complement activation. It is speculated that endotoxins reinforce release of histamine caused by bacteria in persons sensitized to these microorganisms, and a direct mediator release via complement activation might play a role in septic conditions.
doi_str_mv 10.1007/BF01988007
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subjects Bacteria - immunology
Blood Physiological Phenomena
Complement Activation - drug effects
Elapid Venoms - pharmacology
Endotoxins - pharmacology
Histamine Release - drug effects
Humans
In Vitro Techniques
Lipopolysaccharides - pharmacology
title Endotoxins release histamine by complement activation and potentiate bacteria-induced histamine release
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