REM density predicts rapid antidepressant response to ketamine in individuals with treatment-resistant depression.

IF 6.6 1区 医学 Q1 NEUROSCIENCES
Mina Kheirkhah, Wallace C Duncan, Qiaoping Yuan, Philip R Wang, Hamidreza Jamalabadi, Lutz Leistritz, Martin Walter, David Goldman, Carlos A Zarate, Nadia S Hejazi
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引用次数: 0

Abstract

Abnormalities during rapid eye movement (REM) sleep contribute to the pathophysiology of major depressive disorder (MDD), but few studies have explored the relationship between REM sleep and treatment-resistant depression (TRD). In MDD, REM sleep abnormalities often manifest as alterations in total night REM Density (RD), RD in the first REM period (RD1), and REM Latency (RL). Among these, RD1 is notably considered a potential endophenotype of depression. This study compared REM sleep markers between 63 drug-free individuals with TRD (39 F/24 M) and 41 healthy volunteers (25 F/16 M). It also investigated the effects of ketamine, an N-methyl-D-aspartate (NMDA) receptor antagonist, on these REM sleep variables. Specifically, the study investigated whether RD1 could predict antidepressant response to ketamine. TRD participants showed higher RD1 and shorter RL at baseline compared to HVs, as assessed via non-parametric tests, but Total Night RD did not differ between the two groups. Ketamine treatment decreased RD1 in TRD participants but did not affect Total Night RD or RL. As assessed via the Support Vector Machine (SVM) algorithm, baseline RD1 level moderately predicted antidepressant response to ketamine versus non-response (area under the receiver operating characteristic (ROC) curve (AUC) = 0.73, with a median accuracy of 0.75), wherein TRD participants with higher baseline RD1 were more likely to respond to ketamine. These results underscore the utility of RD1 for identifying individuals most likely to benefit from ketamine treatment, enabling more targeted and effective therapeutic strategies. Clinical Trials Identifier: NCT00088699, NCT01204918.

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来源期刊
Neuropsychopharmacology
Neuropsychopharmacology 医学-精神病学
CiteScore
15.00
自引率
2.60%
发文量
240
审稿时长
2 months
期刊介绍: Neuropsychopharmacology is a reputable international scientific journal that serves as the official publication of the American College of Neuropsychopharmacology (ACNP). The journal's primary focus is on research that enhances our knowledge of the brain and behavior, with a particular emphasis on the molecular, cellular, physiological, and psychological aspects of substances that affect the central nervous system (CNS). It also aims to identify new molecular targets for the development of future drugs. The journal prioritizes original research reports, but it also welcomes mini-reviews and perspectives, which are often solicited by the editorial office. These types of articles provide valuable insights and syntheses of current research trends and future directions in the field of neuroscience and pharmacology.
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