Altered functional connectivity of the locus coeruleus in Alzheimer's disease patients with depression symptoms

被引：6
作者：
Dai, Min [1 ,2 ]
Guo, Zhongwei [3 ]
Chen, Jinming [4 ]
Liu, Hao [3 ]
Li, Jiapeng [3 ]
Zhu, Mengxiao [5 ]
Liu, Jian [6 ,7 ]
Wei, Fuquan [3 ]
Wang, Lijuan [3 ,8 ]
Liu, Xiaozheng [1 ,2 ,9 ]
机构：
[1] Wenzhou Med Univ, Affiliated Hosp 2, Wenzhou 325027, Zhejiang, Peoples R China
[2] Wenzhou Med Univ, Yuying Childrens Hosp, Wenzhou 325027, Zhejiang, Peoples R China
[3] Tongde Hosp Zhejiang Prov, Hangzhou 310012, Zhejiang, Peoples R China
[4] Hebei Gen Hosp, Dept Neurol, Shijiazhuang 050050, Hebei, Peoples R China
[5] Zhejiang Chinese Med Univ, Clin Med Coll 2, Hangzhou 310000, Zhejiang, Peoples R China
[6] Seventh Hosp Hangzhou, Hangzhou 310013, Zhejiang, Peoples R China
[7] Anhui Med Univ, Clin Inst Mental Hlth Hangzhou, Hangzhou 310013, Zhejiang, Peoples R China
[8] Tongde Hosp Zhejiang Prov, Dept Psychiat, Hangzhou 310012, Zhejiang, Peoples R China
[9] Wenzhou Med Univ, Affiliated Hosp 2, Dept Radiol, Wenzhou 325027, Peoples R China
来源：
EXPERIMENTAL GERONTOLOGY | 2023年 / 179卷
关键词：
Alzheimer's disease; Depression; Locus coeruleus; Functional magnetic resonance imaging; Functional connectivity; SUPERIOR FRONTAL GYRUS; SOMATIC SYMPTOMS; CERULEUS; CAUDATE; BRAIN; PATTERNS; SYSTEM; CORTEX; MEMORY;
D O I：
10.1016/j.exger.2023.112252
中图分类号：
R592 [老年病学]; C [社会科学总论];
学科分类号：
03 ; 0303 ; 100203 ;
摘要：
Studies have shown that functional abnormalities in the locus coeruleus (LC) are strongly associated with depressive symptoms, but the pattern of LC functional connectivity in Alzheimer's disease patients with depressive symptoms (D-AD) remains unclear. The current study aimed to investigate the characteristics of LC functional connectivity (FC) in D-AD using resting-state functional magnetic resonance imaging (rsfMRI). We obtained rsfMRI data in 24 D-AD patients (aged 66-76 years), 14 non-depressive AD patients (nD-AD) (aged 69-79 years) and 20 normal controls (aged 67-74 years) using a 3 T scanner. We used the FC approach to investigate abnormalities in the LC brain network of D-AD patients. One-way ANCOVA and post-hoc two-sample t-tests were performed to compare the strength of functional connectivity from the LC among the three groups. Our results showed that, compared with normal controls, D-AD showed decreased left LC FC with the right caudate and left fusiform gyrus, whereas nD-AD showed decreased left LC FC with the right caudate, right middle frontal gyrus and left fusiform gyrus. Compared to nD-AD, D-AD showed increased left LC FC with right superior frontal gyrus and right precentral gyrus. These findings contribute to our understanding of the neural mecha-nisms of D-AD.
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页数：6
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