Peer Review History

Original SubmissionAugust 24, 2021
Decision Letter - Giannicola Iannella, Editor

PONE-D-21-27488Effect of obstructive sleep apnea on cerebrovascular compliance and cerebral small vessel diseasePLOS ONE

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Additional Editor Comments:

Well written study. Reviewers suggest minor revisions

[Note: HTML markup is below. Please do not edit.]

Reviewers' comments:

Reviewer's Responses to Questions

Comments to the Author

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Reviewer #1: Yes

Reviewer #2: Yes

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2. Has the statistical analysis been performed appropriately and rigorously?

Reviewer #1: Yes

Reviewer #2: Yes

**********

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Reviewer #1: Yes

Reviewer #2: Yes

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Reviewer #1: Yes

Reviewer #2: Yes

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5. Review Comments to the Author

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Reviewer #1: Interesting paper, minor corrections to improve the quality:

Introduction

-line 55, Subcortical ischemic vascular dementia (SIVD) is very common among older people, but has no approved treatment. A recent randomized study has shown that remote ischemic conditioning (RIC) reduces the recurrence of ischemic stroke and is an effective therapy for patients with SIVD. please cite doi: 10.1186/s12883-019-1435-y.

- line 60, elderly patients are known to have an increased risk of OSAS, with a prevalence of more severe forms after 65 than younger patients. The same severity of obstructive sleep apnea has also been shown to be related to olfactory disorders in the patient with obstructive sleep apnea, the origin of which could be attributed to disorders of the central nervous system. please cite doi:10.1007/s00405-020-06316-w.

line 70, please cite doi:10.14639/0392-100X-895

Methods and results well structured and clearly expressed

Discussion

line 311, also surgical approaches demonstrated improvement of obstructive sleep apnea syndrome (OSAS) and changes in high sensitivity C-reactive protein (hs-CRP) concentrations have been reported after transfer pharyngoplasty (RP), an elevated variant of uvulopalatopharyngoplasty, reducing cardiovascular risk in subjects with obstructive sleep apnea.

please cite doi:10.1177/0194599810395104 and doi:10.1007/s00405-020-05883-2

Reviewer #2: The paper examined an interesting topic. I support its approval suggesting some minor corrections to improve the quality:

Introduction:

Line 60: Reported incidence of OSA is from 5.6% to 60% in people over 65 (cite doi: 10.3390/ijerph17031120) while SVD presents an increased one from 6% at age 60 to 28% at age 80 (cite doi: 10.3390/ijerph17031120).

Line 70: The endothelial dysfunction, may be related to the consequent generation of reactive oxygen species (ROS) and pro-inflammatory molecules, resulting in microvascular damage in OSA patients (cite doi.org/10.3390/jcm10020277).

Methods: clearly expressed and structured

Results: well written and exhaustive.

Discussion:

Line 295: A recent meta-analysis reported that moderate to severe OSA is positively associated with WMH and SBI but not CMBs or PVS (cite doi: 10.1093/sleep/zsz264).

In all paper put the dots after the brackets.

**********

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Reviewer #1: No

Reviewer #2: No

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Revision 1

Effect of obstructive sleep apnea on cerebrovascular compliance and cerebral small vessel disease

Manuscript No.: PONE-D-21-27488

We are grateful for the thorough review and kind advices that were of great help to improve the quality of our manuscript. The manuscript was revised to clarify the issues raised by the reviewers. The changes and authors’ opinions according to the reviewers’ comments are summarized below. We also enabled the "track changes" feature in the manuscript.

REVIEWER #1:

General Comments:

Interesting paper, minor corrections to improve the quality

Specific Comments:

#1. Introduction

-Line 55, Subcortical ischemic vascular dementia (SIVD) is very common among older people, but has no approved treatment. A recent randomized study has shown that remote ischemic conditioning (RIC) reduces the recurrence of ischemic stroke and is an effective therapy for patients with SIVD. please cite doi: 10.1186/s12883-019-1435-y.

Line 60, elderly patients are known to have an increased risk of OSAS, with a prevalence of more severe forms after 65 than younger patients. The same severity of obstructive sleep apnea has also been shown to be related to olfactory disorders in the patient with obstructive sleep apnea, the origin of which could be attributed to disorders of the central nervous system. please cite doi:10.1007/s00405-020-06316-w.

Line 70, please cite doi:10.14639/0392-100X-895

**Response: We thank the reviewer for this discerning advices and recommendation of important up-to-date articles regarding the pathomechanism of OSA. We revised the relevant sentences in the Introduction and added the articles the reviewer has recommended.

#2. Line 311, also surgical approaches demonstrated improvement of obstructive sleep apnea syndrome (OSAS) and changes in high sensitivity C-reactive protein (hs-CRP) concentrations have been reported after transfer pharyngoplasty (RP), an elevated variant of uvulopalatopharyngoplasty, reducing cardiovascular risk in subjects with obstructive sleep apnea.

please cite doi:10.1177/0194599810395104 and doi:10.1007/s00405-020-05883-2

**Response: We again thank the reviewer for this comment. We revised the Discussion section and added the articles the reviewer has recommended.

REVIEWER #2:

General Comments:

The paper examined an interesting topic. I support its approval suggesting some minor corrections to improve the quality.

Specific Comments:

1. Introduction:

Line 60: Reported incidence of OSA is from 5.6% to 60% in people over 65 (cite doi: 10.3390/ijerph17031120) while SVD presents an increased one from 6% at age 60 to 28% at age 80 (cite doi: 10.3390/ijerph17031120).

Line 70: The endothelial dysfunction, may be related to the consequent generation of reactive oxygen species (ROS) and pro-inflammatory molecules, resulting in microvascular damage in OSA patients (cite doi.org/10.3390/jcm10020277).

**Response: We thank the reviewer for this comments and recommendation of important up-to-date articles regarding the pathomechanism of OSA. We revised the relevant sentences in the Introduction and added the articles the reviewer has recommended.

2. Line 295: A recent meta-analysis reported that moderate to severe OSA is positively associated with WMH and SBI but not CMBs or PVS (cite doi: 10.1093/sleep/zsz264).

**Response: We thank the reviewer for informing us about this article. According to the reviewer’s recommendation, we revised the relevant sentences and added the articles the reviewer has recommended.

3. In all paper put the dots after the brackets.

**Response: We applied the changes the reviewer has requested, throughout the manuscript.

Once again, we thank the editor and the reviewers for the thoughtful comments about our work. We hope that this revision will meet the reviewers' approval.

Sincerely,

Yong-Seok Lee, MD, PhD

Department of Neurology, College of Medicine Seoul National University, Seoul National University-Seoul Metropolitan Government Boramae Medical Center

Dongjak-gu, Shindaebang-dong, Boramae 5 Road 20, 156-707, Seoul, Republic of Korea

Tel: 82-2-870-2476, Fax: 82-2-831-2826, E-mail: mercades@snu.ac.kr

And

Hyun-Woo Nam, MD, PhD

Department of Neurology, College of Medicine Seoul National University, Seoul National University-Seoul Metropolitan Government Boramae Medical Center

Dongjak-gu, Shindaebang-dong, Boramae 5 Road 20, 156-707, Seoul, Republic of Korea

Tel: 82-2-870-2471, Fax: 82-2-831-2826, E-mail: hwnam85@gmail.com

Attachments
Attachment
Submitted filename: PONE-D-21-27488-Response to Reviewer Comments.docx
Decision Letter - Giannicola Iannella, Editor

Effect of obstructive sleep apnea on cerebrovascular compliance and cerebral small vessel disease

PONE-D-21-27488R1

Dear Dr. Lee,

We’re pleased to inform you that your manuscript has been judged scientifically suitable for publication and will be formally accepted for publication once it meets all outstanding technical requirements.

Within one week, you’ll receive an e-mail detailing the required amendments. When these have been addressed, you’ll receive a formal acceptance letter and your manuscript will be scheduled for publication.

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Kind regards,

Academic Editor

PLOS ONE

Additional Editor Comments (optional):

interesting and well-structured paper, I find it useful to clarify some aspects related to the complications of OSA. the authors improved the text in accordance with the reviewers' suggestions. Well done. Compliments

Reviewers' comments:

-

Formally Accepted
Acceptance Letter - Giannicola Iannella, Editor

PONE-D-21-27488R1

Effect of obstructive sleep apnea on cerebrovascular compliance and cerebral small vessel disease

Dear Dr. Lee:

I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now with our production department.

If your institution or institutions have a press office, please let them know about your upcoming paper now to help maximize its impact. If they'll be preparing press materials, please inform our press team within the next 48 hours. Your manuscript will remain under strict press embargo until 2 pm Eastern Time on the date of publication. For more information please contact onepress@plos.org.

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Kind regards,

PLOS ONE Editorial Office Staff

on behalf of

Dr. Giannicola Iannella

Academic Editor

PLOS ONE

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