Abnormal Dynamic Functional Connectivity of the Left Rostral Hippocampus in Predicting Antidepressant Efficacy in Major Depressive Disorder

Shao-Wei Xue; Changxiao Kuai; Yang Xiao; Lei Zhao; Zhihui Lan

doi:10.30773/pi.2021.0386

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자료유형: 학술저널

저자정보: Shao-Wei Xue (Center for Cognition and Brain Disorders The Affiliated Hospital and Institutes of Psychological Sc) Changxiao Kuai (Center for Cognition and Brain Disorders The Affiliated Hospital and Institutes of Psychological Sc) Yang Xiao (Center for Cognition and Brain Disorders The Affiliated Hospital and Institutes of Psychological Sc) Lei Zhao (Center for Cognition and Brain Disorders The Affiliated Hospital and Institutes of Psychological Sc) Zhihui Lan (Center for Cognition and Brain Disorders The Affiliated Hospital and Institutes of Psychological Sc)

저널정보: 대한신경정신의학회 PSYCHIATRY INVESTIGATION PSYCHIATRY INVESTIGATION 제19권 제7호

발행연도: 2022.7

수록면: 562 - 569 (8page)

DOI: 10.30773/pi.2021.0386

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Objective Some pharmacological treatments are ineffective in parts of patients with major depressive disorder (MDD), hence this needs prediction of effective treatment responses. The study aims to examine the relationship between dynamic functional connectivity (dFC) of the hippocampal subregion and antidepressant improvement of MDD patients and to estimate the capability of dFC to predict antidepressant efficacy.Methods The data were from 70 MDD patients and 43 healthy controls (HC); the dFC of hippocampal subregions was estimated by sliding-window approach based on resting-state functional magnetic resonance imaging (R-fMRI). After 3 months treatment, 36 patients underwent second R-fMRI scan and were then divided into the response group and non-response group according to clinical responses.Results The result manifested that MDD patients exhibited lower mean dFC of the left rostral hippocampus (rHipp.l) compared with HC. After 3 months therapy, the response group showed lower dFC of rHipp.l compared with the non-response group. The dFC of rHipp.l was also negatively correlated with the reduction rate of Hamilton Depression Rating Scale.Conclusion These findings highlighted the importance of rHipp in MDD from the dFC perspective. Detection and estimation of these changes might demonstrate helpful for comprehending the pathophysiological mechanism and for assessment of treatment reaction of MDD.

#Major depressive disorder #Dynamic functional connectivity #R-fMRI #Hippocampus #Antidepressant efficacy.

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