Changes in Functional Connectivity of Hippocampal Subregions in Patients with Obstructive Sleep Apnea after Six Months of Continuous Positive Airway Pressure Treatment

Previous studies have shown that the structural and functional impairments of hippocampal subregions in patients with obstructive sleep apnea (OSA) are related to cognitive impairment. Continuous positive airway pressure (CPAP) treatment can improve the clinical symptoms of OSA. Therefore, this stud...

Full description

Bibliographic Details
Main Authors: Ling Huang, Haijun Li, Yongqiang Shu, Kunyao Li, Wei Xie, Yaping Zeng, Ting Long, Li Zeng, Xiang Liu, Dechang Peng
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Brain Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3425/13/5/838
_version_ 1797600785719099392
author Ling Huang
Haijun Li
Yongqiang Shu
Kunyao Li
Wei Xie
Yaping Zeng
Ting Long
Li Zeng
Xiang Liu
Dechang Peng
author_facet Ling Huang
Haijun Li
Yongqiang Shu
Kunyao Li
Wei Xie
Yaping Zeng
Ting Long
Li Zeng
Xiang Liu
Dechang Peng
author_sort Ling Huang
collection DOAJ
description Previous studies have shown that the structural and functional impairments of hippocampal subregions in patients with obstructive sleep apnea (OSA) are related to cognitive impairment. Continuous positive airway pressure (CPAP) treatment can improve the clinical symptoms of OSA. Therefore, this study aimed to investigate functional connectivity (FC) changes in hippocampal subregions of patients with OSA after six months of CPAP treatment (post-CPAP) and its relationship with neurocognitive function. We collected and analyzed baseline (pre-CPAP) and post-CPAP data from 20 patients with OSA, including sleep monitoring, clinical evaluation, and resting-state functional magnetic resonance imaging. The results showed that compared with pre-CPAP OSA patients, the FC between the right anterior hippocampal gyrus and multiple brain regions, and between the left anterior hippocampal gyrus and posterior central gyrus were reduced in post-CPAP OSA patients. By contrast, the FC between the left middle hippocampus and the left precentral gyrus was increased. The changes in FC in these brain regions were closely related to cognitive dysfunction. Therefore, our findings suggest that CPAP treatment can effectively change the FC patterns of hippocampal subregions in patients with OSA, facilitating a better understanding of the neural mechanisms of cognitive function improvement, and emphasizing the importance of early diagnosis and timely treatment of OSA.
first_indexed 2024-03-11T03:53:52Z
format Article
id doaj.art-8a84a65cdf074846bfec4e79ad0dac1b
institution Directory Open Access Journal
issn 2076-3425
language English
last_indexed 2024-03-11T03:53:52Z
publishDate 2023-05-01
publisher MDPI AG
record_format Article
series Brain Sciences
spelling doaj.art-8a84a65cdf074846bfec4e79ad0dac1b2023-11-18T00:43:35ZengMDPI AGBrain Sciences2076-34252023-05-0113583810.3390/brainsci13050838Changes in Functional Connectivity of Hippocampal Subregions in Patients with Obstructive Sleep Apnea after Six Months of Continuous Positive Airway Pressure TreatmentLing Huang0Haijun Li1Yongqiang Shu2Kunyao Li3Wei Xie4Yaping Zeng5Ting Long6Li Zeng7Xiang Liu8Dechang Peng9Medical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaMedical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaMedical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaMedical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaMedical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaMedical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaMedical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaMedical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaMedical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaMedical Imaging Center, The First Affiliated Hospital of Nanchang University, Nanchang 330000, ChinaPrevious studies have shown that the structural and functional impairments of hippocampal subregions in patients with obstructive sleep apnea (OSA) are related to cognitive impairment. Continuous positive airway pressure (CPAP) treatment can improve the clinical symptoms of OSA. Therefore, this study aimed to investigate functional connectivity (FC) changes in hippocampal subregions of patients with OSA after six months of CPAP treatment (post-CPAP) and its relationship with neurocognitive function. We collected and analyzed baseline (pre-CPAP) and post-CPAP data from 20 patients with OSA, including sleep monitoring, clinical evaluation, and resting-state functional magnetic resonance imaging. The results showed that compared with pre-CPAP OSA patients, the FC between the right anterior hippocampal gyrus and multiple brain regions, and between the left anterior hippocampal gyrus and posterior central gyrus were reduced in post-CPAP OSA patients. By contrast, the FC between the left middle hippocampus and the left precentral gyrus was increased. The changes in FC in these brain regions were closely related to cognitive dysfunction. Therefore, our findings suggest that CPAP treatment can effectively change the FC patterns of hippocampal subregions in patients with OSA, facilitating a better understanding of the neural mechanisms of cognitive function improvement, and emphasizing the importance of early diagnosis and timely treatment of OSA.https://www.mdpi.com/2076-3425/13/5/838obstructive sleep apneacontinuous positive airway pressureresting-state fMRIhippocampus subregionsfunctional connectivitycognitive impairment
spellingShingle Ling Huang
Haijun Li
Yongqiang Shu
Kunyao Li
Wei Xie
Yaping Zeng
Ting Long
Li Zeng
Xiang Liu
Dechang Peng
Changes in Functional Connectivity of Hippocampal Subregions in Patients with Obstructive Sleep Apnea after Six Months of Continuous Positive Airway Pressure Treatment
Brain Sciences
obstructive sleep apnea
continuous positive airway pressure
resting-state fMRI
hippocampus subregions
functional connectivity
cognitive impairment
title Changes in Functional Connectivity of Hippocampal Subregions in Patients with Obstructive Sleep Apnea after Six Months of Continuous Positive Airway Pressure Treatment
title_full Changes in Functional Connectivity of Hippocampal Subregions in Patients with Obstructive Sleep Apnea after Six Months of Continuous Positive Airway Pressure Treatment
title_fullStr Changes in Functional Connectivity of Hippocampal Subregions in Patients with Obstructive Sleep Apnea after Six Months of Continuous Positive Airway Pressure Treatment
title_full_unstemmed Changes in Functional Connectivity of Hippocampal Subregions in Patients with Obstructive Sleep Apnea after Six Months of Continuous Positive Airway Pressure Treatment
title_short Changes in Functional Connectivity of Hippocampal Subregions in Patients with Obstructive Sleep Apnea after Six Months of Continuous Positive Airway Pressure Treatment
title_sort changes in functional connectivity of hippocampal subregions in patients with obstructive sleep apnea after six months of continuous positive airway pressure treatment
topic obstructive sleep apnea
continuous positive airway pressure
resting-state fMRI
hippocampus subregions
functional connectivity
cognitive impairment
url https://www.mdpi.com/2076-3425/13/5/838
work_keys_str_mv AT linghuang changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment
AT haijunli changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment
AT yongqiangshu changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment
AT kunyaoli changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment
AT weixie changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment
AT yapingzeng changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment
AT tinglong changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment
AT lizeng changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment
AT xiangliu changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment
AT dechangpeng changesinfunctionalconnectivityofhippocampalsubregionsinpatientswithobstructivesleepapneaaftersixmonthsofcontinuouspositiveairwaypressuretreatment