Peer Review History
| Original SubmissionJune 20, 2025 |
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PONE-D-25-33355Metabolic Syndrome, Social Isolation, and Sarcopenia in Mild Cognitive Impairment: A Multi-Faceted Analysis of Risk Factors and Mediating PathwaysPLOS ONE Dear Dr. Guo, Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process. ============================== ACADEMIC EDITOR: Major revision ============================== Please submit your revised manuscript by Sep 21 2025 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org . When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file. Please include the following items when submitting your revised manuscript:
If you would like to make changes to your financial disclosure, please include your updated statement in your cover letter. Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter. If applicable, we recommend that you deposit your laboratory protocols in protocols.io to enhance the reproducibility of your results. Protocols.io assigns your protocol its own identifier (DOI) so that it can be cited independently in the future. For instructions see: https://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols . Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols . We look forward to receiving your revised manuscript. Kind regards, Marwan Salih Al-Nimer, MD, PhD Academic Editor PLOS ONE Journal Requirements: When submitting your revision, we need you to address these additional requirements. 1. Please ensure that your manuscript meets PLOS ONE's style requirements, including those for file naming. The PLOS ONE style templates can be found at https://journals.plos.org/plosone/s/file?id=wjVg/PLOSOne_formatting_sample_main_body.pdf and 2. Thank you for uploading your study's underlying data set. Unfortunately, the repository you have noted in your Data Availability statement does not qualify as an acceptable data repository according to PLOS's standards. At this time, please upload the minimal data set necessary to replicate your study's findings to a stable, public repository (such as figshare or Dryad) and provide us with the relevant URLs, DOIs, or accession numbers that may be used to access these data. For a list of recommended repositories and additional information on PLOS standards for data deposition, please see https://journals.plos.org/plosone/s/recommended-repositories . 3. Your ethics statement should only appear in the Methods section of your manuscript. If your ethics statement is written in any section besides the Methods, please move it to the Methods section and delete it from any other section. Please ensure that your ethics statement is included in your manuscript, as the ethics statement entered into the online submission form will not be published alongside your manuscript. 4. Please include a caption for figure 1 to 4. 5. Please include captions for your Supporting Information files at the end of your manuscript, and update any in-text citations to match accordingly. Please see our Supporting Information guidelines for more information: http://journals.plos.org/plosone/s/supporting-information. 6. Please remove all personal information, ensure that the data shared are in accordance with participant consent, and re-upload a fully anonymized data set. Note: spreadsheet columns with personal information must be removed and not hidden as all hidden columns will appear in the published file. Additional guidance on preparing raw data for publication can be found in our Data Policy (https://journals.plos.org/plosone/s/data-availability#loc-human-research-participant-data-and-other-sensitive-data) and in the following article: http://www.bmj.com/content/340/bmj.c181.long. 7. If the reviewer comments include a recommendation to cite specific previously published works, please review and evaluate these publications to determine whether they are relevant and should be cited. There is no requirement to cite these works unless the editor has indicated otherwise. Additional Editor Comments: This interesting article includes new ideas and results. It requires the following clarifications 1: Why the collected data was of 2015? 2: The statistical analysis section needs more clarification 3: The indirect (mediation) effect is simple determined by using Sobel test. Why the authors not applied this test? [Note: HTML markup is below. Please do not edit.] Reviewers' comments: Reviewer's Responses to Questions Comments to the Author 1. Is the manuscript technically sound, and do the data support the conclusions? The manuscript must describe a technically sound piece of scientific research with data that supports the conclusions. Experiments must have been conducted rigorously, with appropriate controls, replication, and sample sizes. The conclusions must be drawn appropriately based on the data presented. Reviewer #1: Partly Reviewer #2: Yes ********** 2. Has the statistical analysis been performed appropriately and rigorously? Reviewer #1: Yes Reviewer #2: Yes ********** 3. Have the authors made all data underlying the findings in their manuscript fully available? The PLOS Data policy requires authors to make all data underlying the findings described in their manuscript fully available without restriction, with rare exception (please refer to the Data Availability Statement in the manuscript PDF file). The data should be provided as part of the manuscript or its supporting information, or deposited to a public repository. For example, in addition to summary statistics, the data points behind means, medians and variance measures should be available. If there are restrictions on publicly sharing data—e.g. participant privacy or use of data from a third party—those must be specified. Reviewer #1: Yes Reviewer #2: Yes ********** 4. Is the manuscript presented in an intelligible fashion and written in standard English? PLOS ONE does not copyedit accepted manuscripts, so the language in submitted articles must be clear, correct, and unambiguous. Any typographical or grammatical errors should be corrected at revision, so please note any specific errors here. Reviewer #1: Yes Reviewer #2: Yes ********** 5. Review Comments to the Author Please use the space provided to explain your answers to the questions above. You may also include additional comments for the author, including concerns about dual publication, research ethics, or publication ethics. (Please upload your review as an attachment if it exceeds 20,000 characters) Reviewer #1: This study touches on a relevant and important topic in geriatric nutrition. However, to elevate the quality, the manuscript needs a clearer rationale, more rigorous statistical and conceptual handling, better control for confounders, and more in-depth discussion of findings. The authors need to address the following comments: The abstract lacks clarity and flow. The objective, methods, and results are present but feel disjointed. It reads more like a bullet-pointed summary than a cohesive snapshot of the study. The authors should consider revising it to better highlight the main message and research significance. The rationale for the study is weakly developed in the introduction. While the authors mention aging and anemia, the connection between anemia and functional decline (grip strength, performance) could be better explained with reference to physiological pathways or previous evidence. There is limited justification for the specific outcome measures chosen. While hand grip strength and SPPB are valid tools, the rationale for choosing these as indicators of physical performance in this specific rural elderly population is not elaborated. Cultural or lifestyle relevance should be discussed. The study design is cross-sectional, yet some conclusions sound causal. Statements like "anemia impacts muscle strength and performance" are not appropriate for a cross-sectional study. The language needs to be more cautious and accurate throughout the paper. Sampling strategy lacks detail and representativeness. The authors mention “a selected village” but provide no justification for why this village was chosen or how generalizable the findings are to the broader rural elderly population of South India. Operational definitions and cut-offs used for anemia are not fully explained. It would strengthen the study if authors clarified how “nutritional anemia” was differentiated from other forms of anemia (e.g., anemia of chronic disease), especially in the elderly where multiple etiologies are common. Dietary intake data are surprisingly underutilized. The paper collects information on iron and protein intake, yet these variables are barely discussed in the results and not integrated meaningfully into the conclusions. This represents a missed opportunity to strengthen the nutritional focus of the paper. Confounding factors are not properly controlled. Age and gender are included, but other critical variables such as comorbidities, medications, physical activity level, and inflammation status are not considered. These could significantly affect both anemia and functional outcomes. Grip strength and SPPB data are presented but not deeply interpreted. The results could be more insightful if the authors explored gender-wise differences, thresholds of clinical relevance (e.g., sarcopenia cut-offs), and how these values compare to normative data. Some statistical results lack transparency. The regression analysis outputs (e.g., Table 4) are not fully explained. The confidence intervals and adjusted models could be better presented and interpreted in terms of their practical implications. Discussion is limited and lacks depth. Much of it rehashes results without integrating them with broader literature. There's a need to compare and contrast with similar studies in Indian or global rural elderly populations to frame the findings properly. Public health implications are mentioned vaguely. The conclusion refers to early identification and screening but doesn’t offer any specific recommendations, policies, or programmatic suggestions based on the study findings. The study does not address the potential bidirectional relationship. Poor nutritional status can lead to anemia and reduced physical performance, but physical inactivity or chronic illness could also lead to anemia. This complex interplay should be acknowledged. Language and grammar issues persist throughout. Some sentences are awkward or ambiguous, affecting clarity. A thorough language revision is needed to improve readability, especially in the introduction and discussion sections. Ethical considerations are mentioned but need more detail. While ethical clearance is noted, there’s no mention of whether data confidentiality, informed consent procedures, and data storage protocols were adequately maintained; important in elderly populations. Reviewer #2: Abstract: Well-written & adequate. Introduction: Well-written and adequate. There are some technical issues with long sentences that could be improved by a proof reader. There are also lack of a space after a full stop (.) or a semicolon (;) seen consistently throughout the manuscript. Good research question. Methodologies: Generally well-written. There are different tenses use (past & present). suggest to use the correct tense accordingly. The experimental model was good and well thought out. interesting that analysis on muscle function was not considered. may be this needs to be explained in the discussion. Results: Generally well-written. The figures provided are unclear (blurry), suggest to provide 300dpi images. Figures need clearer labelling and proper captioning. Discussion & conclusion: Well-written and adequate ********** 6. PLOS authors have the option to publish the peer review history of their article (what does this mean? ). If published, this will include your full peer review and any attached files. If you choose “no”, your identity will remain anonymous but your review may still be made public. Do you want your identity to be public for this peer review? For information about this choice, including consent withdrawal, please see our Privacy Policy . Reviewer #1: No Reviewer #2: Yes: INTAN SUHANA ZULKAFLI ********** [NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.] While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com/ . PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Registration is free. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email PLOS at figures@plos.org . Please note that Supporting Information files do not need this step. |
| Revision 1 |
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<div>PONE-D-25-33355R1Metabolic Syndrome, Social Isolation, and Sarcopenia in Mild Cognitive Impairment: A Multi-Faceted Analysis of Risk Factors and Mediating PathwaysPLOS ONE Dear Dr. Zhongqiang Guo, Thank you for submitting your manuscript to PLOS ONE. After careful consideration, we feel that it has merit but does not fully meet PLOS ONE’s publication criteria as it currently stands. Therefore, we invite you to submit a revised version of the manuscript that addresses the points raised during the review process. ============================== ACADEMIC EDITOR: Minor revision ============================== Please submit your revised manuscript by Oct 25 2025 11:59PM. If you will need more time than this to complete your revisions, please reply to this message or contact the journal office at plosone@plos.org . When you're ready to submit your revision, log on to https://www.editorialmanager.com/pone/ and select the 'Submissions Needing Revision' folder to locate your manuscript file. Please include the following items when submitting your revised manuscript:
If you would like to make changes to your financial disclosure, please include your updated statement in your cover letter. Guidelines for resubmitting your figure files are available below the reviewer comments at the end of this letter. If applicable, we recommend that you deposit your laboratory protocols in protocols.io to enhance the reproducibility of your results. Protocols.io assigns your protocol its own identifier (DOI) so that it can be cited independently in the future. For instructions see: https://journals.plos.org/plosone/s/submission-guidelines#loc-laboratory-protocols . Additionally, PLOS ONE offers an option for publishing peer-reviewed Lab Protocol articles, which describe protocols hosted on protocols.io. Read more information on sharing protocols at https://plos.org/protocols?utm_medium=editorial-email&utm_source=authorletters&utm_campaign=protocols . We look forward to receiving your revised manuscript. Kind regards, Marwan Salih Al-Nimer, MD, PhD Academic Editor PLOS ONE Journal Requirements: 1. If the reviewer comments include a recommendation to cite specific previously published works, please review and evaluate these publications to determine whether they are relevant and should be cited. There is no requirement to cite these works unless the editor has indicated otherwise. 2. Please review your reference list to ensure that it is complete and correct. If you have cited papers that have been retracted, please include the rationale for doing so in the manuscript text, or remove these references and replace them with relevant current references. Any changes to the reference list should be mentioned in the rebuttal letter that accompanies your revised manuscript. If you need to cite a retracted article, indicate the article’s retracted status in the References list and also include a citation and full reference for the retraction notice. Additional Editor Comments: Check the typing of references 15 and 19 [Note: HTML markup is below. Please do not edit.] [NOTE: If reviewer comments were submitted as an attachment file, they will be attached to this email and accessible via the submission site. Please log into your account, locate the manuscript record, and check for the action link "View Attachments". If this link does not appear, there are no attachment files.] While revising your submission, please upload your figure files to the Preflight Analysis and Conversion Engine (PACE) digital diagnostic tool, https://pacev2.apexcovantage.com/ . PACE helps ensure that figures meet PLOS requirements. To use PACE, you must first register as a user. Registration is free. Then, login and navigate to the UPLOAD tab, where you will find detailed instructions on how to use the tool. If you encounter any issues or have any questions when using PACE, please email PLOS at figures@plos.org . Please note that Supporting Information files do not need this step. |
| Revision 2 |
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Metabolic Syndrome, Social Isolation, and Sarcopenia in Mild Cognitive Impairment: A Multi-Faceted Analysis of Risk Factors and Mediating Pathways PONE-D-25-33355R2 Dear Dr. Zhongqiang Guo, 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. An invoice will be generated when your article is formally accepted. Please note, if your institution has a publishing partnership with PLOS and your article meets the relevant criteria, all or part of your publication costs will be covered. Please make sure your user information is up-to-date by logging into Editorial Manager at Editorial Manager® and clicking the ‘Update My Information' link at the top of the page. For questions related to billing, please contact billing support . If your institution or institutions have a press office, please notify them about your upcoming paper to help maximize its impact. If they’ll be preparing press materials, please inform our press team as soon as possible -- no later than 48 hours after receiving the formal acceptance. 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. Kind regards, Marwan Salih Al-Nimer, MD, PhD Academic Editor PLOS ONE Additional Editor Comments (optional): No comments Reviewers' comments: |
| Formally Accepted |
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PONE-D-25-33355R2 PLOS ONE Dear Dr. Guo, I'm pleased to inform you that your manuscript has been deemed suitable for publication in PLOS ONE. Congratulations! Your manuscript is now being handed over to our production team. At this stage, our production department will prepare your paper for publication. This includes ensuring the following: * All references, tables, and figures are properly cited * All relevant supporting information is included in the manuscript submission, * There are no issues that prevent the paper from being properly typeset You will receive further instructions from the production team, including instructions on how to review your proof when it is ready. Please keep in mind that we are working through a large volume of accepted articles, so please give us a few days to review your paper and let you know the next and final steps. Lastly, 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. You will receive an invoice from PLOS for your publication fee after your manuscript has reached the completed accept phase. If you receive an email requesting payment before acceptance or for any other service, this may be a phishing scheme. Learn how to identify phishing emails and protect your accounts at https://explore.plos.org/phishing. If we can help with anything else, please email us at customercare@plos.org. Thank you for submitting your work to PLOS ONE and supporting open access. Kind regards, PLOS ONE Editorial Office Staff on behalf of Professor Marwan Salih Al-Nimer Academic Editor PLOS ONE |
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