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Peer-Review Record

Resting-State EEG Alpha Rhythms Are Related to CSF Tau Biomarkers in Prodromal Alzheimer’s Disease

Int. J. Mol. Sci. 2025, 26(1), 356; https://doi.org/10.3390/ijms26010356
by Claudio Del Percio 1, Roberta Lizio 1,2,*, Susanna Lopez 1, Giuseppe Noce 3, Matteo Carpi 1, Dharmendra Jakhar 1, Andrea Soricelli 3,4, Marco Salvatore 3, Görsev Yener 5,6, Bahar Güntekin 7,8, Federico Massa 9,10, Dario Arnaldi 9,11, Francesco Famà 9,11, Matteo Pardini 9, Raffaele Ferri 2, Filippo Carducci 1,2, Bartolo Lanuzza 2, Fabrizio Stocchi 12,13, Laura Vacca 12, Chiara Coletti 12, Moira Marizzoni 14, John Paul Taylor 15, Lutfu Hanoğlu 16, Nesrin Helvacı Yılmaz 17, İlayda Kıyı 18, Yağmur Özbek-İşbitiren 18, Anita D’Anselmo 19, Laura Bonanni 19, Roberta Biundo 20,21, Fabrizia D’Antonio 22, Giuseppe Bruno 22, Angelo Antonini 21, Franco Giubilei 23, Lucia Farotti 24, Lucilla Parnetti 25, Giovanni B. Frisoni 26,27 and Claudio Babiloni 1,28add Show full author list remove Hide full author list
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Int. J. Mol. Sci. 2025, 26(1), 356; https://doi.org/10.3390/ijms26010356
Submission received: 21 October 2024 / Revised: 13 December 2024 / Accepted: 25 December 2024 / Published: 3 January 2025

Round 1

Reviewer 1 Report

Comments and Suggestions for Authors

Relationship between Posterior Resting-State Electroencephalographic Alpha Rhythms and Cerebrospinal Fluid Biomarkers of Neuropathology in Patients with Alzheimer’s Disease Mild Cognitive Impairment

The study is an interesting exploratory retrospective resting state EEG investigation on AD and MCI.  In the introduction, I suggest removing or make a brief reference to the consortium, and I suggest focusing more on the results. The section is well-written and clear and the hypotheses are stated in a good way at the end of the introduction.

The method is well explained and clear. However, I have some suggestions and commentaries:

The authors used GDS to assess depression/depressive symptoms in the patients. It should be interesting to see if patients have experienced MDD or mood disorders during adulthood. Moreover, the MRI was collected using different fields (1.5 and 3T), and they are from Siemens, GE, and Philips. More info about the scanners is needed, as well as the number of patients/controls collected at 1.5T and 3T. I suppose that no differences have been found, but a check is needed. Please, add this information.

Moreover, it is not clear if a 32 or 64 channels EEG system was used. You reported that 19 electrodes were considered for the analysis, but you need to specify the system that you used for resting state EEG. However, I suggest to add more information about the lasting of the EEG data collection, since you mentioned 150 epochs lasting 2 secs each.

I don’t know if you took into consideration to study EEG coherence, but it is only a suggestion and not a request to perform further analysis.

I agree with the statistical analysis and the tests that you have applied. The results are complex and I supposed that the authors selected the best option to describe them.  

In the discussion, I agree that there is little info about aging and EEG (overall rsEEG), and about the speculative tone, but I suggest discussing better the role played by parietal lobe in healthy and pathological aging.

 

 

 

Author Response

Please see the attachment

Author Response File: Author Response.pdf

Reviewer 2 Report

Comments and Suggestions for Authors

To whom it may concern,

I enjoyed reading your manuscript. Still, some aspects could be improved (please see below my remarks):

1. The title is too long; it should be changed and be more catchy to the future reader.

2. The abstract should be structured (background; materials and method; results; conclusion)

3. In the introduction, you should add a new paragraph on mild cognitive impairment - definitions, types, current challenges. Also, the paragraphs on rEEG could be rephrased and shorten.

4. In the materials and method section, I suggest you add a new subchapter on "ethical consent". 

5. In the discussion section, you could also make some speculations on the future research direction on this topic, based on your preliminary results of the study. 

6. I suggest you make the conclusion section more compact, containing only two paragraphs (one summarizing the results of your work, the other suggesting future research directions). 

Author Response

Please see the attachment

Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

Comments and Suggestions for Authors

The authors have addressed all my concerns and suggestions as I requested. 

Reviewer 2 Report

Comments and Suggestions for Authors

The authors have addressed all of my inquiries in the correct way. The final version of the manuscript does not need any other modifications in my opinion. 

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