Procognitive Effects of Adjunctive D-Cycloserine to Intermittent Theta-Burst Stimulation in Major Depressive Disorder: Effets procognitifs de la D-cyclosérine en traitement complémentaire par la stimulation thêta-burst intermittente dans le trouble dépressif caractérisé.
Marilena M DeMayo, Jaeden Cole, Myren N Sohn, Signe L Bray, Ashley D Harris, Scott B Patten, Alexander McGirr
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引用次数: 0
Abstract
Objective: Major depressive disorder (MDD) is associated with cognitive impairments that persist despite successful treatment. Transcranial magnetic stimulation is a noninvasive treatment for MDD that is associated with small procognitive effects on working memory and executive function. We hypothesized that pairing stimulation with N-methyl-D-aspartate (NMDA) receptor agonism would enhance the effects of stimulation and its procognitive effects.
Method: The effect of NMDA receptor agonism (D-cycloserine, 100 mg) on cognitive performance was tested in two randomized double-blind placebo-controlled trials: (1) acute effects of in the absence of stimulation (n = 20 healthy participants) and (2) a treatment study of individuals with MDD (n = 50) randomized to daily intermittent theta-burst stimulation (iTBS) with placebo or D-cycloserine for 2 weeks. Cognitive function was measured using the THINC-it battery, comprised of the Perceived Deficits Questionnaire, the Choice Reaction Time, the Trail Making Test, the Digit Symbol Substitution Test, and the 1-Back tests.
Results: D-cycloserine had no acute effect on cognition compared to placebo. iTBS + D-cycloserine was associated with significant improvements in subjective cognitive function and correct responses on the 1-Back when compared to iTBS + placebo. Improvements in subjective cognition paralleled depressive symptoms improvement, however 1-Back improvements were not attributable to improvement in depression.
Conclusions: An intersectional strategy pairing iTBS with NMDA receptor agonism may restore cognitive function in MDD.
期刊介绍：
Established in 1956, The Canadian Journal of Psychiatry (The CJP) has been keeping psychiatrists up-to-date on the latest research for nearly 60 years. The CJP provides a forum for psychiatry and mental health professionals to share their findings with researchers and clinicians. The CJP includes peer-reviewed scientific articles analyzing ongoing developments in Canadian and international psychiatry.
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