Role of nitric oxide signaling in the antidepressant mechanism of action of ketamine: A randomized controlled trial
JOURNAL OF PSYCHOPHARMACOLOGY(2021)
摘要
Ketamine is an N-methyl-D-aspartate receptor antagonist with rapid antidepressant effects. Studies suggest that inhibition of nitric oxide synthesis plays a role in the mechanism of action of ketamine. This randomized, placebo-controlled study investigated whether co-administration of sodium nitroprusside, a nitric oxide donor, compared to placebo, would attenuate the antidepressant and dissociative effects of ketamine. Sixteen ketamine responders were randomized to a double-blind infusion of ketamine co-administered with placebo or sodium nitroprusside. Our findings show no difference between the two conditions suggesting that the nitric oxide pathway may not play a primary role in ketamine's antidepressant or dissociative effects. The study is registered at clinicaltrials.gov (NCT03102736).
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关键词
Depression,antidepressant,dissociation,ketamine,glutamate,N-methyl-D-aspartate receptor,nitric oxide,sodium nitroprusside
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