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@ARTICLE{Rostampour:1048884,
author = {Rostampour, Masoumeh and Apter, Daryna and Rostampour, Ali
and Khosravi-Bayangani, Shayesteh and Elberse, Jorik D. and
Sharafkhaneh, Amir and Khazaie, Habibolah and Tahmasian,
Masoud},
title = {{A}lterations of neurofluid transport in patients with
obstructive sleep apnea and insomnia disorder},
journal = {Sleep medicine},
volume = {138},
issn = {1389-9457},
address = {Amsterdam [u.a.]},
publisher = {Elsevier},
reportid = {FZJ-2025-04989},
pages = {108687 -},
year = {2026},
abstract = {Sleep appears to modulate brain-wide neurofluid transport,
encompassing the movement and exchange of cerebrospinal and
interstitial fluids via perivascular pathways. However,
neurofluid transport in common sleep disorders, such as
insomnia disorder and obstructive sleep apnea, requires
further assessment. In this study, we recruited 159
participants: patients with moderate to severe obstructive
sleep apnea (n = 36) or chronic insomnia disorder (n = 62),
and healthy controls (n = 61). Participants underwent
structural magnetic resonance imaging, polysomnography, the
Pittsburgh Sleep Quality Index, and the STOP-Bang
questionnaires. Here, neurofluid transport is indirectly
assessed using two noninvasive MRI indices (i.e., the
perivascular space volume fraction and diffusion tensor
imaging along perivascular spaces). Patients with
obstructive sleep apnea exhibited a significantly larger
perivascular space volume fraction compared with patients
with insomnia disorder (p = 0.042) and healthy controls (p =
0.032), whereas no group differences were observed for the
diffusion-based index. Partial correlation analyses,
adjusted for age, sex, and body mass index, revealed that in
obstructive sleep apnea, a larger perivascular space volume
fraction was associated with less sleep disturbance (r =
−0.35, p = 0.04), and diffusion measures increased with
snoring severity (r = 0.38, p = 0.03). In insomnia disorder,
a larger perivascular space volume fraction was associated
with a higher nocturnal wake index (r = 0.38, p = 0.006) and
an elevated risk of blood pressure (r = 0.50, p < 0.001),
while inversely relating to subjective sleep quality (r =
−0.35, p = 0.01). Our results highlight different patterns
of neurofluid transport alterations across obstructive sleep
apnea and insomnia disorder.},
cin = {INM-7},
ddc = {610},
cid = {I:(DE-Juel1)INM-7-20090406},
pnm = {5251 - Multilevel Brain Organization and Variability
(POF4-525)},
pid = {G:(DE-HGF)POF4-5251},
typ = {PUB:(DE-HGF)16},
doi = {10.1016/j.sleep.2025.108687},
url = {https://juser.fz-juelich.de/record/1048884},
}