Instructions to Authors

General instructions for submission online


The Brazilian Journal of Nephrology (Jornal Brasileiro de Nefrologia) - ISSN 0101-2800 (online) and 2175-8239 (printed version) - is a quarterly publication (March, June, September and December) of the Brazilian Society of Nephrology (SBN) designed for publication of original works from all relevant areas in the field of nephrology. The online journal has open and free access. In addition to the regular numbers, BJN also publishes annual supplements, primarily addressing clinical practice. The authors are free of submission charge. For selection of articles, originality, topic relevance, and quality of scientific methodology are evaluated, as well as adherence to the adopted editorial regulations. All articles are anonymously peer reviewed, and acceptance notification is normally sent within three months of receipt by the journal. Copyright for articles will be automatically transferred to the Brazilian Journal of Nephrology (Jornal Brasileiro de Nefrologia). The content of the material sent for publication may not be previously published or submitted to other journals. To publish, even in part, in another journal, written approval from the editors is necessary. The concepts and declarations contained in the referred manuscripts are the complete responsibility of the authors.


The Brazilian Journal of Nephrology (Jornal Brasileiro de Nefrologia) accepts papers written in Portuguese and English, preferably in English. Papers submitted in Portuguese also requires the author to provide title, description and summary in English, in addition to Portuguese. While papers in English do not require the author to send metadata in Portuguese.




An in-depth critical commentary prepared as a response to an Editor invitation and/or submitted by a person with noteworthy experience on the subject. Editorials may contain up to 900 words and 5 references.

Original Articles

These should present unpublished results from research, constituting complete studies that contain all relevant information so that the reader may reproduce the study or evaluate its results and conclusions. The manuscripts may contain up to 5,000 words. The formal structure should contain Introduction, Methods, Results, Discussion, and Conclusion sections. Clinical implications and limitations of the study should be highlighted. It is also suggested that, when appropriate, the Methods section be detailed regarding the study design, location, participants, clinical outcomes of interest, and intervention. These manuscripts should contain an Abstract with an Introduction, Objective(s), Methods, Results, and Conclusion section.

Short Communication

These are original articles, however, less substantial than the regular article, and are of particular interest in the area of nephrology, presenting preliminary results or results of immediate relevance. Short communications should contain up to 1,500 words. The manuscript should have an Abstract followed by the model for original articles, and at maximum, one Table or Figure, as well as a maximum of 15 bibliographical references.

Review Articles

Reviews are preferentially solicited by the Editor to a specialist in a particular area. The objective of these articles is to express and critically evaluate the knowledge available on a specific topic, commenting on studies from other authors and using a broad reference base, or on occasion, responding to a spontaneous demand concerning a specific topic. These should contain up to 6,000 words. The text should contain an Abstract, - Introduction, Discussion section, Conclusion, and other subdivisions, when appropriate (e.g., "Clinical Application", "Treatment"). Abstract of these manuscripts do not need to be -necessarily structured. A broad reference list, however, not excessive, should appear at the end of the manuscript; preferably up to 80 references for this type of article.

Update Articles

To address current information relevant to the clinical practice, less complete than the review articles. These should be preferentially, a response to the editors' invitation, and occasionally upon spontaneous demand. Updates should contain up to 2,000 words, and present an Abstract, not necessarily structured, and preferably up to 40 bibliographical references.

Case Reports

Presentation of professional experience, based on a study of a peculiar case and succinct comments of interest for the practice of other professionals in the area. The report should contain up to 1,500 words. The structure should contain at minimum the following sections: Abstract, not necessarily structured, Introduction, explaining the relevance of the case; Structured presentation of the case (i.e., identification of the patient, complaints and previous history, personal and familial antecedent, clinical exam), and Discussion.

Clinical Trials

All materials related to human and animal research must have prior approval from the Institutional Review Boards - IRBs from the institution where the work was done in accordance with the recommendations of the Declaration of Helsinki (1964 and versions from 1975, 1983, and 1989), the International Standards for the Protection of Animals, and the resolution 196/96 of the Brazilian National Health Council on Research Involving Humans. Each manuscript must contain the number of this protocol.


Opinions or commentaries about the content, editorial views, or relevant scientific topics-. The text should be brief, with a maximum of 500 words. The manuscript may be a commentary about published material, or may bring new data and clinical observation. Only one Table and one Figure are permitted, and a maximum of 5 references. All authors (maximum of five) should sign the letter. No need for a summary.

Nephrological Consultation in 10 Minutes: mandatory by invitation from the editors, this section was created to offer the reader a rapid expertise on day to day topics in nephrology. The text should contain, on average 630 words, only one Table and one Figure, and a maximum of 5 references.

Supplements /BJN Educational

These are by invitation from the Editors. Supplements refer to specific themes relevant to the clinical practice, composed of an editorial or a presentation of current articles, and should contain up to 2,000 words, have an Abstract, not necessarily structured, and preferentially up to 40 bibliographical references.

Nephrology History

Historic documentation of subjects related to nephrology, historic point of view.



The following should be sent:

a) Word file (.doc or .rtf), double-space type, 12 point font, margin of 3 cm on each side, with numbered pages in numerals characters, beginning each section on a new page, in the following sequence: title page, Abstract and key-words, text, acknowledgements, references, Tables and Legends - images, which should be sent in .jpg or .tiff format;

b) Permission for reproduction of manuscript;

c) Approval from the Institutional Review Board at which the study was performed, when referring to interventions (diagnostic or therapeutic) on humans;

d) A letter signed by all authors stating a novel and unpublished study. The lack of signature of an author will be interpreted as disinterest or disapproval of publication, and the persons name will be, therefore, editorially excluded;

e) Complete address of the corresponding author.



Dear Editor,

By the present, we, the undersigned authors, submit this manuscript (name of study), hereby written by us and presented as an article (type - Original; Review; Update; Case Report; etc.) to the Editorial Board of the Brazilian Journal of Nephrology (Jornal Brasileiro de Nefrologia) for publication. In accordance with the regulations contained in the "Authors Instructions", we inform that:

a) the referred study was performed at (name of institution);

b) the protocol was approved by the institution IRB;

c) informed consent was obtained for studies that involved humans;

d) copyright transfer; we irrevocably concede to the Brazilian Society of Nephrology (BSN), in the case of acceptance for publication, the authors rights to the study that we are hereby submitting, recognizing that any total or partial reproduction is forbidden without prior and necessary authorization requested in writing and obtained from the BSN.

e) we have kept a copy of the present submitted manuscript; and

f) the study was supported financially by (names of the institutions that gave support for the study).

With respect to the imperative ethics- underscoring any possible factors that may influence or bias the results of this study- we acknowledge the following conflicts of interest; (explain, if any, relationships that involve, professional, financial, or direct or indirect beneficiary conflicts of interest, or explicitly declare the inexistence of such associations).

To facilitate correspondence exchange, the following author was designated as correspondence author. (Name of chosen author, followed by the name of the institution, complete postal address, telephone and, electronic address).

We presently submit and await manifestation of notification.


(Date and location, followed by signatures and respective full names)



Identification page: The first page should contain: a) Title of the Article, which should be complete and concise, describing the subject to which it refers (superfluous words should be omitted); b) Names of the authors; c) Institution and sector of Institution to which each author is affiliated, and position at the Institution, accompanied by the respective addresses; d) Name of the department and institution at which the study was performed; e) Indication of the corresponding author; f) If the study was funded, the name of the funding agency should be indicated; g) If the study was based on an academic thesis, the title, year, and institution at which it was presented should be identified; h) If the study was presented at a scientific meeting, indicate the name of the event, location and date.

Abstract and keywords: Abstracts should identify the objectives, procedures, and conclusions of the study (maximum 250 words for abstracts that should be structured). Structured abstracts should present, at the beginning of each paragraph, the name of the subdivisions that compose the formal structure of the article (Introduction, Methods, Results and Conclusion). Key words, expressions that represent the subject of the study, should be presented in numbers of 3 to 10, supplied by the author, based on MeSH (Medical Subject Headings) of the National Library of Medicine and available on the site:

Text: The text should be written in accordance with the structure designated for the appropriate category of the article. Citations and referenced cited in the legends of table and figures should be numbered consecutively in the order that they appear in the text (numerical index). The references should be cited in the text without parentheses, exponentially, following the example: References1.

Figures and Graphs: All illustrations (photographs, graphs, drawings etc.) should be submitted individually, in JPG format (in high resolution - 300 dpi). They should be numbered sequentially in the order that they were mentioned in the text, and be clear enough to allow reproduction. Legends for the figures should be sent in a separate file. Photocopies will not be accepted. If any figures have been extracted from other previously published studies, the authors should have prior permission in writing for their reproduction. This authorization should accompany the submitted manuscript.

Statistical analysis: The authors should demonstrate that the statistical procedures utilized were not only appropriate to test the hypothesis of the study, but also correctly interpreted. The levels of statistical significance (e.g., p<0.05; p<0.01; p<0.001) should be identified.

Abbreviations: The abbreviations should be indicated in the text upon the first utilization. Thereafter, the full name should not be repeated.

Name of medication: the generic name should be used.

Citation of machines and equipment: all machines and equipment cited should include the model and name, state and country of manufacturer.

Acknowledgements: Should include the collaboration of persons, groups or institutions that deserve recognition, but are not included as authors; acknowledgement for financial support, technical assistance, etc, should appear before the references.

References: References should be numbered sequentially, in the same order that they were mentioned in the text and identified with numerical characters. The presentation should be based on the "Vancouver Style" format, according the following example, and the titles and periodicals should be abbreviated according to the style presented by the List of Journal Indexed in Index Medicus, of the National Library of Medicine available at: The authors should certify that the cited references in the text are contained in the list of references with the correct dates and authors names. The accuracy of the bibliographical references is the authors' responsibility. Personal communications, unpublished studies, or ongoing studies should be cited only when absolutely necessary, but should not be included in the list of references; only mentioned in the text with a footer.



Articles from periodicals (up to six authors)

Soltani A, Argani H, Rahimipour H, Soleimani F, Rahimi F, Kazerouni F. Oxidized LDL: As a risk factor for cardiovascular disease in renal transplantation. J. Bras. Nefrol. 2016;38(2):147-152

Articles of periodicals (more that six authors)

Bastos JA, Andrade LCF, Ferreira AP, Barroso EA, Daibert PC, Barreto PLS, et al. Serum levels of vitamin D and chronic periodontitis in patients with chronic kidney disease. J. Bras. Nefrol. 2013;35(1):20-26

Articles without the name of author

Cancer in South Africa [editorial]. S Afr Med J 1994;84:15.

Entire books

Ringsven MK, Bond D. Gerontology and leadership skills for nurses. 2nd ed. Albany (NY): Delmar Publishers; 1996.

Book Chapters

Phillips SJ, Whisnant JP. Hypertension and stroke. In: Laragh JH, Brenner BM, editors. Hypertension: pathophysiology, diagnosis, and management. 2nd ed. New York: Raven Press; 1995. p. 465-78.

Books for which the editors (organizers) are authors

Norman IJ, Redfern SJ, editors. Mental health care for elderly people. New York: Churchill Livingstone; 1996.


Kaplan SJ. Post-hospital home health care: the elderly's access and utilization [dissertation]. St. Louis (MO): Washington Univ.; 1995.

Papers presented at Meetings

Bengtsson S, Solheim BG. Enforcement of data protection, privacy and security in medical informatics. In: Lun KC, Degoulet P, Piemme TE, Rienhoff O, editors. MEDINFO 92. Proceedings of the 7th World Congress on Medical Informatics; 1992 Sep 6-10; Geneva, Switzerland. Amsterdam: North-Holland;1992. p. 1561-5.

Periodical in electronic format

Morse SS. Factors in the emergence of infectious diseases. Emerg Infect Dis [serial online] 1995 Jan-Mar [cited 1996 Jun 5];1(1):[24 screens]. Available from website: URL:

Other types of references should follow the document of the International Committee of Medical Journal Editors (Vancouver), available at the website:, October 2004.



The submissions should be done on-line at the website It is essential that copyright transfer, letters of approval from the ethics committee (when referring to interventional studies on humans-diagnostic or therapeutic), and the authors affirmation of the novelty of the study be sent by fax to the SBN (fax number: +55 11 5573-6000) or scanned and sent by email to



Before sending any manuscript for publication in the Brazilian Journal of Nephrology (Jornal Brasileiro de Nefrologia), authors should verify if the material complies with the following criteria:


( ) First and last name of the authors are presented.
( ) Institutions to which each author is affiliated are listed.
( ) Letter of presentation complies with ethical requirements signed by all authors, mentioning existing conflicts of interest, cited funding sources and/or financial support, etc.).


( ) Should be presented with Short title.


( ) The article type is presented (Original, Review, Case Report, and others)


( ) Abstract is structured and contains up to 250 words (Original Article, Short Communication and Case Report).
( ) Contains up to 150 words (Review and Update Article).


( ) Integrates the vocabulary of Decs (Bireme).


( ) Follow the norms of the Vancouver group (e.g., Vega KJ, Pina I, Krevsky B. Heart transplantation is associated with an increased risk for pancreatobiliary disease. Ann Intern Med 1996;124:980-3.
( ) Are numbered in the same order that they appear in the text.
( ) Are identified by numerals, superscript ie, "according to Johnson1".
( ) Complies, preferentially with, the limit of 40 for Original Articles, 15 for Short Communications, 15 for Case Reports, 80 for Review Articles, and 40 for Update Articles.


( ) If the paper is in Portuguese it should have title, description and summary in both languages (Portuguese and English).
( ) In the electronic version, the study is retyped into one file in .doc or .rtf format (Microsoft Word).
( ) The Tables and Figures do not exceed, together, the maximum of 6 units.
( ) In the electronic version, the tables are presented in .doc format (Microsoft Word), or .xlsx (Microsoft Excel).
( ) In the electronic version the illustrations (photographs, graphs, drawings, etc.) should be sent individually, in .jpg format (in high resolution - 300 dpi).



According to the Uniform Requirements for Manuscripts Submitted to Biomedical Journals (International Committee of Medical Journal Editors - February 2006).



Public trust in the peer review process and the credibility of published articles depend in part on how well conflict of interest is handled during writing, peer review, and editorial decision making. Conflict of interest exists when an author (or the author's institution), reviewer, or editor has financial or personal relationships that inappropriately influence (bias) his or her actions (such relationships are also known as dual commitments, competing interests, or competing loyalties). These relationships vary from those with negligible potential to those with great potential to influence judgment, and not all relationships represent true conflict of interest. The potential for conflict of interest can exist whether or not an individual believes that the relationship affects his or her scientific judgment. Financial relationships (such as employment, consultancies, stock ownership, honoraria, paid expert testimony) are the most easily identifiable conflicts of interest and the most likely to undermine the credibility of the journal, the authors, and of science itself. However, conflicts can occur for other reasons, such as personal relationships, academic competition, and intellectual passion.



Patients have a right to privacy that should not be infringed without informed consent. Identifying information, including patients' names, initials, or hospital numbers, should not be published in written descriptions, photographs, and pedigrees unless the information is essential for scientific purposes and the patient (or parent or guardian) gives written informed consent for publication. Informed consent for this purpose requires that a patient who is identifiable be shown the manuscript to be published. Authors should identify Individuals who provide writing assistance and disclose the funding source for this assistance.

Identifying details should be omitted if they are not essential. Complete anonymity is difficult to achieve, however, and informed consent should be obtained if there is any doubt. For example, masking the eye region in photographs of patients is inadequate protection of anonymity. If identifying characteristics are altered to protect anonymity, such as in genetic pedigrees, authors should provide assurance that alterations do not distort scientific meaning and editors should so note.

The requirement for informed consent should be included in the journal's instructions for authors. When informed consent has been obtained it should be indicated in the published article.



When reporting experiments on human subjects, authors should indicate whether the procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2000. If doubt exists whether the research was conducted in accordance with the Helsinki Declaration, the authors must explain the rationale for their approach, and demonstrate that the institutional review body explicitly approved the doubtful aspects of the study. When reporting experiments on animals, authors should be asked to indicate whether the institutional and national guide for the care and use of laboratory animals was followed.

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