Sarcopenia in Patients with Chronic Kidney Disease

An abstract should be submitted with all submissions except for Letters to the Editor. The abstract of Original Articles should be structured with subheadings (Objective, Materials and Methods, Results, and Conclusion). Please check Table 1 below for word count specifications.

Turkish Journal of Nephrology (Turk J Nephrol) is a doubleblind peer-reviewed, open access, an international online-only publication of the Turkish Society of Nephrology. The journal is a quarterly publication, published in January, April, July and October. The publication language of the journal is English.
Turkish Journal of Nephrology aims to contribute to the literature by publishing manuscripts at the highest scientific level in the fields of nephrology, dialysis and transplantation. The journal publishes original articles, rare case reports, reviews, and letters to the editor that are prepared in accordance with the ethical guidelines.
The scope of the journal includes but not limited to; remarkable clinical and experimental investigations conducted in all fields of nephrology. The target audience of the journal includes specialists and professionals working and interested in all disciplines of nephrology and kidney care.
The editorial and publication processes of the journal are shaped in accordance with the guidelines of the International Committee of Medical Journal Editors (ICMJE), World Association of Medical Editors (WAME), Council of Science Editors (CSE), Committee on Publication Ethics (COPE), European Association of Science Editors (EASE), and National Information Standards Organization (NISO). The journal is in conformity with the Principles of Transparency and Best Practice in Scholarly Publishing (doaj.org/bestpractice).
Turkish Journal of Nephrology is currently indexed in Web of Science-Emerging Sources Citation Index, Scopus, EBSCO, and TUBITAK ULAKBIM TR Index.
Processing and publication are free of charge with the journal. No fees are requested from the authors at any point throughout the evaluation and publication process. All manuscripts must be submitted via the online submission system, which is available at www.turkjnephrol.org. The journal guidelines, technical information, and the required forms are available on the journal's web page.
All expenses of the journal are covered by the Turkish Society of Nephrology. Potential advertisers should contact the Editorial Office. Advertisement images are published only upon the Editor-in-Chief's approval.
Statements or opinions expressed in the manuscripts published in the journal reflect the views of the author(s) and not the opinions of the Turkish Society of Nephrology, editors, editorial board, and/ or publisher; the editors, editorial board, and publisher disclaim any responsibility or liability for such materials. Originality, high scientific quality, and citation potential are the most important criteria for a manuscript to be accepted for publication. Manuscripts submitted for evaluation should not have been previously presented or already published in an electronic or printed medium. The journal should be informed of manuscripts that have been submitted to another journal for evaluation and rejected for publication. The submission of previous reviewer reports will expedite the evaluation process. Manuscripts that have been presented in a meeting should be submitted with detailed information on the organization, including the name, date, and location of the organization.
Manuscripts submitted to Turkish Journal of Nephrology will go through a double-blind peer-review process. Each submission will be reviewed by at least two external, independent peer reviewers who are experts in their fields in order to ensure an unbiased evaluation process. The editorial board will invite an external and independent editor to manage the evaluation processes of manuscripts submitted by editors or by the editorial board members of the journal. The Editor in Chief is the final authority in the decision-making process for all submissions.
An approval of research protocols by the Ethics Committee in accordance with international agreements (World Medical Association Declaration of Helsinki "Ethical Principles for Medical Research In-volving Human Subjects," amended in October 2013, www.wma.net) is required for experimental, clinical, and drug studies and for some case reports. If required, ethics committee reports or an equivalent official document will be requested from the authors. For manuscripts concerning experimental research on humans, a statement should be included that shows that written informed consent of patients and volunteers was obtained following a detailed explanation of the procedures that they may undergo. For studies carried out on animals, the measures taken to prevent pain and suffering of the animals should be stated clearly. Information on patient consent, the name of the ethics committee, and the ethics committee approval number should also be stated in the Materials and Methods section of the manuscript. It is the authors' responsibility to carefully protect the patients' anonymity. For photographs that may reveal the identity of the patients, signed releases of the patient or of their legal representative should be enclosed and the publication approval must be provided in the Materials and Methods section.
All submissions are screened by a similarity detection software (iThenticate by CrossCheck).
In the event of alleged or suspected research misconduct, e.g., plagiarism, citation manipulation, and data falsification/fabrication, the Editorial Board will follow and act in accordance with COPE guidelines.
Each individual listed as an author should fulfill the authorship criteria recommended by the International Committee of Medical Journal Editors (ICMJE -www.icmje.org). The ICMJE recommends that authorship be based on the following 4 criteria: 1 Substantial contributions to the conception or design of the work; or the acquisition, analysis, or interpretation of data for the work; AND 2 Drafting the work or revising it critically for important intellectual content; AND 3 Final approval of the version to be published; AND 4 Agreement to be accountable for all aspects of the work in ensuring that questions related to the accuracy or integrity of any part of the work are appropriately investigated and resolved.
In addition to being accountable for the parts of the work he/she has done, an author should be able to identify which co-authors are responsible for specific other parts of the work. In addition, authors

Instruction to Authors
should have confidence in the integrity of the contributions of their co-authors.
All those designated as authors should meet all four criteria for authorship, and all who meet the four criteria should be identified as authors. Those who do not meet all four criteria should be acknowledged in the title page of the manuscript.
Turkish Journal of Nephrology requires corresponding authors to submit a signed and scanned version of the authorship contribution form (available for download through turkjnephrol.org) during the initial submission process in order to act appropriately on authorship rights and to prevent ghost or honorary authorship. If the editorial board suspects a case of "gift authorship," the submission will be rejected without further review. As part of the submission of the manuscript, the corresponding author should also send a short statement declaring that he/she accepts to undertake all the responsibility for authorship during the submission and review stages of the manuscript.
Turkish Journal of Nephrology requires and encourages the authors and the individuals involved in the evaluation process of submitted manuscripts to disclose any existing or potential conflicts of interests, including financial, consultant, and institutional, that might lead to potential bias or a conflict of interest. Any financial grants or other support received for a submitted study from individuals or institutions should be disclosed to the Editorial Board. To disclose a potential conflict of interest, the ICMJE Potential Conflict of Interest Disclosure Form should be filled in and submitted by all contributing authors. Cases of a potential conflict of interest of the editors, authors, or reviewers are resolved by the journal's Editorial Board within the scope of COPE and ICMJE guidelines.
The Editorial Board of the journal handles all appeal and complaint cases within the scope of COPE guidelines. In such cases, authors should get in direct contact with the editorial office regarding their appeals and complaints. When needed, an ombudsperson may be assigned to resolve cases that cannot be resolved internally. The Editor in Chief is the final authority in the decision-making process for all appeals and complaints.
Turkish Journal of Nephrology requires each submission to be accompanied by a Copyright License Agreement (available for download turkjnephrol.org). When using previously published content, including figures, tables, or any other material in both print and electronic formats, authors must obtain permission from the copyright holder. Legal, financial and criminal liabilities in this regard belong to the author(s). By signing the Copyright License Agreement, authors agree that the article, if accepted for publication by the Turkish Journal of Nephrology, will be licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Statements or opinions expressed in the manuscripts published in
Turkish Journal of Nephrology reflect the views of the author(s) and not the opinions of the editors, the editorial board, or the publisher; the editors, the editorial board, and the publisher disclaim any responsibility or liability for such materials. The final responsibility in regard to the published content rests with the authors.

MANUSCRIPT PREPARATION
The manuscripts should be prepared in accordance with ICMJE-Recommendations for the Conduct, Reporting, Editing, and Publication of Scholarly Work in Medical Journals (updated in December 2018 -http://www.icmje.org/icmje-recommendations.pdf). Authors are required to prepare manuscripts in accordance with the CONSORT guidelines for randomized research studies, STROBE guidelines for observational original research studies, STARD guidelines for studies on diagnostic accuracy, PRISMA guidelines for systematic reviews and meta-analysis, ARRIVE guidelines for experimental animal studies, TREND guidelines for non-randomized public behavior, and KDIGO guidelines for the terminology on the fields of nephrology, dialysis and transplantation (https://kdigo.org/wp-content/uploads/2018/10/Nomenclature-Conference-Report.pdf).
Manuscripts can only be submitted through the journal's online manuscript submission and evaluation system, available at turkjnephrol.org. Manuscripts submitted via any other medium will not be evaluated.
Manuscripts submitted to the journal will first go through a technical evaluation process where the editorial office staff will ensure that the manuscript has been prepared and submitted in accordance with the journal's guidelines. Submissions that do not conform to the journal's guidelines will be returned to the submitting author with technical correction requests.
Authors are required to submit the following: Keywords: Each submission must be accompanied by a minimum of three to a maximum of six keywords for subject indexing at the end of the abstract. The keywords should be listed in full without abbreviations. The keywords should be selected from the National Library of Medicine, Medical Subject Headings database (https:// www.nlm.nih.gov/mesh/MBrowser.html).
Main Points: All submissions except letters to the editor should be accompanied by 3 to 5 "main points" which should emphasize the most noteworthy results of the study and underline the principle message that is addressed to the reader. This section should be structured as itemized to give a general overview of the article. Since "Main Points" targeting the experts and specialists of the field, each item should be written as plain and straightforward as possible. (i) how the statistical assumptions are tested (e.g. Histogram and q-q plots were examined, Shapiro-Wilk's test was used to assess the data normality.);

Manuscript Types
(ii) which statistical methods are used for which purposes (e.g. To compare the miRNA levels of patients with and without CKD, a two-sided independent samples t test was applied.); (ii) how the data values are expressed (e.g. Values are expressed as mean±SD or median(1st-3rd quartiles.); (iv) which statistical software was used to analyze the data (e.g. Analyses were conducted using TURCOSA (Turcosa Analytics, Turkey) statistical software.).
Additionally, the study design (e.g. retrospective case-control, cross-sectional, cohort, etc.) and the sample size calculation procedure (power analysis) should also be detailed in the Materials and Methods section.
Units should be prepared in accordance with the International System of Units (SI).
Editorial Comments: Editorial comments aim to provide a brief critical commentary by reviewers with expertise or with high reputation in the topic of the research article published in the journal. Authors are selected and invited by the journal to provide such comments. Abstract, Keywords, and Tables, Figures, Images, and other media are not included.
Review Articles: Reviews prepared by authors who have extensive knowledge on a particular field and whose scientific background has been translated into a high volume of publications with a high citation potential are welcomed. These authors may even be invited by the journal. Reviews should describe, discuss, and evaluate the current level of knowledge of a topic in clinical practice and should guide future studies.

Tables
Tables should be included in the main document, presented after the reference list, and they should be numbered consecutively in the order they are referred to within the main text. A descriptive title must be placed above the tables. Abbreviations used in the tables should be defined below the tables by footnotes (even if they are defined within the main text). Tables should be created using the "insert table" command of the word processing software and they should be arranged clearly to provide easy reading. Data presented in the tables should not be a repetition of the data presented within the main text but should be supporting the main text. All acronyms and abbreviations used in the manuscript should be defined at first use, both in the abstract and in the main text. The abbreviation should be provided in parentheses following the definition.

Figures and Figure Legends
When a drug, product, hardware, or software program is mentioned within the main text, product information, including the name of the product, the producer of the product, and city and the country of the company (including the state if in USA), should be provided in parentheses in the following format: "Discovery St PET/CT scanner (General Electric, Milwaukee, WI, USA)" All references, tables, and figures should be referred to within the main text, and they should be numbered consecutively in the order they are referred to within the main text.
Limitations, drawbacks, and the shortcomings of original articles should be mentioned in the Discussion section before the conclusion paragraph.

References
Both in-text citations and the references must be prepared according to the AMA Manual of style. While citing publications, preference should be given to the latest, most up-to-date publications.
If an ahead-of-print publication is cited, the DOI number should be provided. The authors are responsible for the accuracy of referenc- Table 1. Limitations for each manuscript type Type of manuscript Word limit Abstract word limit Reference limit