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  • Title: Reversal by cimetidine of histamine-induced inhibition of true chemotaxis in neutrophil polymorphonuclears.
    Author: Patrone F, Dallegri F, Lanzi G, Sacchetti C.
    Journal: Res Exp Med (Berl); 1980; 176(3):201-5. PubMed ID: 6102784.
    Abstract:
    The effects of histamine and cimetidine on neutrophil locomotion were studied in vitro in experimental conditions able to dissociate random from truly directional motility. Histamine 10(-4) mol/l inhibited the true chemotactic response. Cimetidine was able to reverse the histamine-induced inhibition of true chemotaxis. Since histamine-induced inhibition of neutrophil chemotaxis may play a role in allergic patients with repeated infections, and since cimetidine has been shown to enhance cell-mediated immunity in vivo, often impaired in such cases, the use of cimetidine is suggested for the prevention of recurrences in these patients.
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