Altered Spontaneous Neural Activity in Peripartum Depression: A Resting-State Functional Magnetic Resonance Imaging Study

Frontiers in Psychology

article

Kaili Che¹  Yinghong Shi¹  Haizhu Xie¹  Ning Mao¹  Yuna Li¹  Meijie Liu²  Heng Ma¹  Wei Bai¹  Xiao Xu³  Jianjun Dong¹  Ying Li⁴ 

[1] Department of Radiology, Yantai Yuhuangding Hospital, Qingdao University;Clinical Medical College, Binzhou Medical University;Medical Imaging Department, Weifang Medical University;Department of Radiology, The First Affiliated Hospital of Zhengzhou University

关键词: peripartum depression;    fractional amplitude of low-frequency fluctuation;    regional homogeneity;    resting-state functional MRI;    dorsolateral prefrontal cortex;   

DOI  :  10.3389/fpsyg.2020.00656

学科分类：社会科学、人文和艺术（综合）

来源: Frontiers

【 摘 要 】

Abnormalities related to peripartum depression (PPD) have been detected in several brain regions through tasking-state functional magnetic resonance imaging (fMRI). In this study, we used the two markers of resting-state fMRI (rs-fMRI) to investigate changes in spontaneous neural activity of PPD and their correlation with depression severity. A total of 16 individuals with PPD were compared with 16 age- and education-matched healthy controls (HCs) by using rs-fMRI. Two-sample t -test was used to compare the fractional amplitudes of low-frequency fluctuation (fALFF) and regional homogeneity (ReHo) values between groups. Pearson correlation analysis was used to determine the correlation between the fALFF and ReHo of the abnormal brain region and the Hamilton Depression Scale (HAMD) and Edinburgh Postnatal Depression Scale scores. The spontaneous neural activity of the PPD group significantly increased mainly in the left middle frontal gyrus, left precuneus, left inferior parietal lobule, and left dorsolateral prefrontal cortex (DLPFC) and decreased mainly in the bilateral precentral gyrus and right inferior occipital gyrus compared with those of the HCs. The fALFF value of the left DLPFC was negatively correlated with the HAMD score in PPD. This rs-fMRI study suggests that changes in the spontaneous neural activity of these regions are related to emotional responses. PPD cases with low fALFF values in the left DLPFC have severe depression.

【 授权许可】

CC BY