Altered Dynamics of Brain Spontaneous Activity and Functional Networks Associated With Cognitive Impairment in Patients With Type 2 Diabetes

被引:2
作者
Fu, Linqing [2 ]
Zhang, Wen [2 ,3 ,4 ]
Bi, Yan [5 ]
Li, Xin [2 ]
Zhang, Xin [2 ,3 ,4 ]
Shen, Xinyi [2 ]
Li, Qian [2 ]
Zhang, Zhou [5 ]
Yang, Sijue [5 ]
Yu, Congcong [5 ]
Zhu, Zhengyang [2 ]
Zhang, Bing [1 ,2 ,3 ,4 ,6 ]
机构
[1] Nanjing Univ, Nanjing Drum Tower Hosp, Affiliated Hosp, Dept Radiol,Med Sch, Nanjing 210008, Peoples R China
[2] Nanjing Univ, Nanjing Drum Tower Hosp, Affiliated Hosp, Dept Radiol,Med Sch, Nanjing, Peoples R China
[3] Nanjing Univ, Inst Med Imaging & Artificial Intelligence, Nanjing, Peoples R China
[4] Nanjing Univ, Nanjing Drum Tower Hosp, Affiliated Hosp, Med Imaging Ctr,Med Sch, Nanjing, Peoples R China
[5] Nanjing Univ, Nanjing Drum Tower Hosp, Affiliated Hosp, Dept Endocrinol,Med Sch, Nanjing, Peoples R China
[6] Nanjing Univ, Inst Brain Sci, Nanjing, Peoples R China
基金
中国国家自然科学基金;
关键词
type; 2; diabetes; cognitive impairment; dynamic functional connectivity; sliding window method; dynamic regional homogeneity; MRI DATA; CONNECTIVITY; DEMENTIA; STATES; RISK;
D O I
10.1002/jmri.29306
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
Background: Cognitive impairment is increasingly recognized as an important comorbidity and complication of type 2 diabetes (T2D), affecting patients' quality of life and diabetes management. Dynamic brain activity indicators can reflect changes in key neural activity patterns of cognition and behavior. Purpose: To investigate dynamic functional connectivity (DFC) changes and spontaneous brain activity based on resting-state functional magnetic resonance imaging (rs-fMRI) in patients with T2D, exploring their correlations with clinical features. Study Type: Retrospective. Subjects: Forty-five healthy controls (HCs) (22 males and 23 females) and 102 patients with T2D (57 males and 45 females). Field Strength/Sequence3.0 T/T1-weighted imaging and rs-fMRI with gradient-echo planar imaging sequence. Assessment: Functional networks were created using independent component analysis. DFC states were determined using sliding window approach and k-means clustering. Spontaneous brain activity was assessed using dynamic regional homogeneity (dReHo) variability. Statistical TestsOne-way analysis of variance and post hoc analysis were used to compare the essential information including demographics, clinical data, and features of DFC and dReHo among groups. Diagnostic performance was assessed using receiver operating characteristic (ROC) curve. P-values <0.05 were taken to indicate statistical significance. Results: T2D group had significantly decreased mean dwell time and fractional windows in state 4 compared to HC. T2D with mild cognitive impairment showed significantly increased dReHo variability in left superior occipital gyrus compared to T2D with normal cognition. Mean dwell time and number of fractional windows of state 4 both showed significant positive correlations with the Montreal cognitive assessment scores (r = 0.309; r = 0.308, respectively) and the coefficient of variation of dReHo was significantly positively correlated with high-density lipoprotein cholesterol (r = 0.266). The integrated index had an area under the curve of 0.693 (95% confidence interval = 0.592-0.794). Data Conclusion: Differences in DFC and dynamic characteristic of spontaneous brain activity associated with T2D-related functional impairment may serve as indicators for predicting symptom progression and assessing cognitive dysfunction.
引用
收藏
页码:2547 / 2561
页数:15
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