Benzodiazepines inhibit neutrophil chemotaxis and superoxide production in a stimulus dependent manner; PK-11195 antagonizes these effects
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Sedation & immunomodulation
2011, Anesthesiology ClinicsCitation Excerpt :However, chronic dosing produces a consistent immune depressant effect46,47 with depression of polymorphonuclear cell phagocytosis, adherence, and chemotaxis.47 Further in vitro studies suggest that midazolam and diazepam suppress neutrophil oxidative burst by action at the peripheral benzodiazepine receptor.48–50 The interaction of benzodiazepines with lymphocyte function requires further investigation although preliminary evidence shows impairment of humoral responses following long-term (60 days or greater) dosing in mice.46
Sedation & Immunomodulation
2009, Critical Care ClinicsCitation Excerpt :However, chronic dosing produces a consistent immune depressant effect46,47 with depression of polymorphonuclear cell phagocytosis, adherence, and chemotaxis.47 Further in vitro studies suggest that midazolam and diazepam suppress neutrophil oxidative burst by action at the peripheral benzodiazepine receptor.48–50 The interaction of benzodiazepines with lymphocyte function requires further investigation although preliminary evidence shows impairment of humoral responses following long-term (60 days or greater) dosing in mice.46
Effects of acute and long-term diazepam administrations on neutrophil activity: A flow cytometric study
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1996, Progress in Neuro-Psychopharmacology and Biological PsychiatryFlow cytometry evaluation of the in vitro influence of four i.v. anaesthetics on respiratory burst of neutrophils
1996, British Journal of Anaesthesia