1972
DOI: 10.1254/jjp.22.325
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Histamine Release From Isolated Rat Mast Cells in Metal Ion-Free Medium

Abstract: It is generally recognized that the histamine release from mast cells induced by a number of histamine releasers including compound 48/80 or by antigen-antibody reaction is ac companied by extracellular discharge of granules (degranulation), though this is not always the case (1-3). Uvnäs and Thon (4, 5) proposed a hypothesis that the mechanism of histamine release from mast cells by compound 48/80 consists of two consecutive steps: the one being the process of extracellular discharge of granules, and the… Show more

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Cited by 10 publications
(6 citation statements)
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“…keeping with the results of Thon & Uvnas (1967) and Yamasaki & Sugiyama (1972), there was still a significant, corrected release of histamine in the absence of any added metal cations. The spontaneous release of histamine was verv high uLnder these conditions but was mUch reduced by low concentrations of divalent cations.…”
supporting
confidence: 86%
“…keeping with the results of Thon & Uvnas (1967) and Yamasaki & Sugiyama (1972), there was still a significant, corrected release of histamine in the absence of any added metal cations. The spontaneous release of histamine was verv high uLnder these conditions but was mUch reduced by low concentrations of divalent cations.…”
supporting
confidence: 86%
“…Spontaneous histamine re lease was 5.2 ± 2.5% (n = 75). Basic secreta gogues are able to release histamine in the absence of extracellular calcium or in the pres ence of a low concentration of calcium (3,14,15). Under our conditions, the values of hista mine release percentage induced by compound 48/80, bradykinin, PEI6 and substance P in the presence of 0.3 mM calcium were 62.2 ± 3.2 (n = 16), 42.9 ± 3.2 (n = 8), 34.7 ± 3.1 (n = 10) and 24.1 ± 1.6 (n = 8), respec tively.…”
Section: Preparation Of Purified Mast Cellsmentioning
confidence: 99%
“…Unlike IgE-depend ent activation, the activation by non-immunologic stimuli is independent of IgE receptors, extracellular calcium and phosphatidylserine (10), but is dependent on Gi-like G protein activation (11)(12)(13)(14). Compound 48/80, substance P and bradykinin are basic secretagogues.…”
mentioning
confidence: 99%