Alterations in the DTI-ALPS index and choroid plexus volume are associated with clinical symptoms in participants with narcolepsy type 1

被引：1

作者：

Hu, Pengxin ^{[1
,2
]}

Yuan, Yuqing ^{[3
]}

Zou, Yu ^{[1
,2
]}

Xiong, Ruifang ^{[1
,2
]}

Dai, Jiankun ^{[4
]}

Zhao, Xihai ^{[5
]}

Xie, Liang ^{[3
]}

Tang, Xiaoping ^{[1
,2
,5
]}

机构：

[1] Nanchang Univ, Affiliated Hosp 2, Jiangxi Med Coll, Dept Radiol, Nanchang 330006, Peoples R China

[2] Intelligent Med Imaging Jiangxi Key Lab, Nanchang 330006, Peoples R China

[3] Nanchang Univ, Affiliated Hosp 2, Jiangxi Med Coll, Dept Neurol, Nanchang 330006, Peoples R China

[4] GE Healthcare, MR Res, Beijing 100000, Peoples R China

[5] Tsinghua Univ, Biomed Imaging Res Ctr, Sch Med, Beijing 100084, Peoples R China

来源：

SLEEP MEDICINE | 2024年 / 124卷

关键词：

Glymphatic system; DTI-ALPS; Choroid plexus; Narcolepsy type 1; BRAIN;

D O I：

10.1016/j.sleep.2024.10.019

中图分类号：

R74 [神经病学与精神病学];

学科分类号：

摘要：

Background: Narcolepsy type 1 (NT1) is a sleep disorder characterized by excessive daytime sleepiness accompanied by cataplexy. Sleep disorders have been shown to affect the glymphatic system. This study aimed to evaluate changes in the diffusion tensor imaging along the perivascular space (DTI-ALPS) index and choroid plexus (CP) volume in NT1 participants, and to further explore their clinical significance. Methods: We prospectively enrolled participants diagnosed with NT1 based on cerebrospinal fluid hypocretin-1 concentration and multiple sleep latency tests at our hospital. All participants underwent MRI to allow analysis of the DTI-ALPS index and CP volume. We subsequently performed correlation analyses between the DTI-ALPS index, CP volume, and important clinical parameters, including the Epworth Sleepiness Scale (ESS) score, Narcolepsy Severity Scale (NSS) score, stage rapid eye movement sleep (REM) ratio, stage 1 non-REM (N1) ratio, stage 2 non-REM (N2) ratio, and stage 3 non-REM (N3) ratio, among the NT1 participants. Inter-group and correlation analyses of DTI-ALPS index and CP volume were performed using age, sex, body mass index, and lateral ventricle volume as covariates. Results: This study enrolled 41 NT1 participants and 42 healthy controls (HC). The DTI-ALPS index of NT1 participants was significantly lower than HC (1.444 +/- 0.119 vs.1.661 +/- 0.135, P < 0.001), while the CP volume of NT1 participants was significantly larger than those of HC (0.831 +/- 0.146 vs. 0.645 +/- 0.137, P < 0.001). The DTI-ALPS index was negatively correlated with both the ESS (PFDR-corrected<0.001) and NSS scores (PFDR-corrected = 0.010), but positively correlated with the Stage N3 ratio (PFDR-corrected = 0.033). The CP volume of NT1 participants was positively correlated with ESS (PFDR-corrected = 0.047) and NSS scores (PFDR-corrected = 0.047), but negatively correlated with the stage N3 ratio (PFDR-corrected = 0.047). Conclusion: Our study suggests that the DTI-ALPS index was lower and CP volume was larger in NT1 participants. The DTI-ALPS index and CP volume in the NT1 participants were related to disease severity and sleep structure. These findings may provide new insights into the mechanisms underlying NT1.

引用

页码：471 / 478

页数：8