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Sociedade Brasileira de Nefrologia

Instructions to Authors



The Brazilian Journal of Nephrology (JBN) - ISSN 0101-2800 - 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. In addition to the regular numbers, JBN also publishes annual supplements that include JBNEducational, primarily addressing clinical practice. 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. 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. Review articles, updates, or letters should be rewritten in Portuguese or English. The article should refer to one of the various categories for review articles.



An in-depth critical commentary prepared as a response to an Editors 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These should present unpublished results from research, constituting complete studies that contain all relevant information so that the reader may reproduce the study or evaluate its results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. The use of subtitles is particularly recommended in the discussion section. 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. Short communications should be sent only in Portuguese.

Review Articles

Reviews are preferentially solicited by the Editors to a specialist in a particular area. The objective of these articles is to express and critically evaluate the knowledge available on a determined 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 Introduction, a Discussion section, a Conclusion, and other subdivisions, when appropriate (e.g., "Clinical Application", "Treatment"). These manuscripts should present an Abstract, however, not 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: 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 of a journal; 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. 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/JBN 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.


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

Forum in Nephrology

Articles that have the objective to present informations about some issue of clinical relevance in nephrology. Each article should have a maximum of 4.500 words and preferably 60 references.


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 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, 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 jointly by the SBN;

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, profesional, 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, if possible, 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).The title in English should also be presented; b) Names of the authors; c) Institution or sector of Institution to which each author is affiliated, accompanied by the respective addresses (personal titles, and positions occupied should not be specified); d) Name of the department and or 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: original articles, short communications, review articles, and updates, written in Portuguese should include, on the second page an abstract in Portuguese and English. 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, Discussion, 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 the DeCS (Descritores em Ciências da Saúde) published by Bireme, which is a translation of MeSH (Medical Subject Headings) of the National Library of Medicine and available on the site: These should be presented in both Portuguese and English.

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)

Almeida OP. Authors of scientific articles: What do such authors do? Rev Bras Psiquiatr 1998;20:113-6.

Articles of periodicals (more that six authors)

Slatopolsky E, Weerts C, Lopez-Hilker S et al. Calcium carbonate as a phosphate binder in patients with chronic renal failure undergoing dialysis. N Engl J Med 1986;315:157-61.

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 in congresses

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, 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 in Portuguese, English and short-title.


( ) The article type is presented (Original, Review, Case Report, (Update, 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).
( ) Abstract is in Portuguese and English (except Letter).


( ) Integrates the vocabulary of Decs (Bireme-Lilacs).
( ) Words are presented in Portuguese and English.


( ) 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.


( ) 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.


The papers must be submitted in Portuguese or English only by electronic means through the URL: Accessing this link, the system will request your username and password. If you are not registered, click on the button "I want to register" and follow the steps to register before following the article submission. In case of forgetting the password, click on the link "Remember password", the system will send you the login and access password for accessing the system on the informed e-mail.

The rules for article formatting can be found at the URL Studies involving human beings or animals must mandatorily inform the protocol approval number of the study by the Ethics Committee of the institution where it was developed.

The electronic submission process by SGP is composed by eight steps, whose are:

1st: Area and Classification

2nd: Title and Keywords

3rd: Authors and Co-Authors

4th: Abstract and Comments

5th: Manuscript

6th: Images

7th: Copyright (Assignment of Rights)

8th: Author's Approval

By the end of the submission process, the system will give the option of saving a copy of the paper in the ".doc" extension for personal control. The journal strongly recommends the authors to submit papers previously prepared in WordPerfect, Microsoft Word or Pages, once that in the 5th step "Manuscript", there is a text editor that simulates Word, where is possible to copy and paste contents of any text editor, including tables. Images and graphics have their own rules, wich will be described on the 6th step.

Text formatting is unnecessary, for it shall be done automatically by the SGP System, and posteriorly in case of approval, will receive the standard JBN formatting pattern during the designing process for printing.

1st Step: Area and Classification

In this moment the author must choose and inform the article area, among the available ones in the journal database, which are: Cronical Kidney Disease, Diabetic Kidney Disease and Kidney Disease in Obesity and Metabolic Syndrome, Epidemiology, Glomerulopathies and Tubule-Interstitial Disease, Arterial Hipertension, Acute Kidney Failure, Nephrology of Children and Adolescents, Experimental Nephrology, Nephrology Perspectives, Renal Transplant and Dialysis.

Inform the classification that best suits your article among the following:

Review Article, Original Article, Update Article, Letter, Brief Communication, 10-minute Nephrology Appointment, Editorial, Clinical Trials, Mini-Review, Pro-Memory and Case Report.

2nd Step: Title and Keywords

In this step you must inform your article's English title, Portuguese title and summary title. In this moment the keywords must be related.

IMPORTANT: The keywords must be part of the DeCS and MeSH indexes, which can be easily consulted on every SGP screen.

3rd Step: Authors and Co-Authors

In this step it is invaluable to have the complete data of every author and co-author of the article. To register them, it is mandatory to inform full name, position, titration and institution on which every author is bound, only the document number can be posteriorly informed, however we highlight the importance of filling all the data on the first article submission opportunity, in order to assure the owned copyrights for every contributor. The co-author order can be easily modified using the "arrow" icons showed on the screen.

The system will not accept duplicated papers by the same name of the main author. In the hypothesis that the same work is submitted by different authors, JBN keeps the right to delete all of them form the system.

4th Step: Resumo, Abstract and Comments

The Resumo and Abstract should mandatorily contain the maximum amount of words allowed by the article classification. They also must be structured by: Introduction, Objective, Methods, Results e Conclusion.

In this step the following should be informed: Study harboring institution, name and corresponding address, Financial support and the letter to the editor, beign the last optional.

5th Step: Manuscript

In this step it is showed a Word simulator, with all the text formatting functionalities, characteristic to that editor. To insert your text on this area, simply select all your work, including tables (text format), copy and paste on the manuscript's arranging area. Do not copy and paste the images, they will be sent on the 6th step and inserted automatically by the end of the submission.

It is extremely important that ALL THE TABLES part of the article are in text format, NOT IMAGE.

PS: In no hypothesis put the author or co-author names, or any other information that can identify where the study was developed (Institution, Hospital, etc.), this demand is due to the double-blind review process. The unfulfillment of this demand will result in the devolution of your article with a "NON-COMPLIANT" indication, to be corrected, and consequently delaying the final publishment, in case of approval.

6th Step: Images

The images must be in the JPG or TIFF formats, have at least a 1000 pixels width and a 300 DPI resolution. If you need to change your image's format, access the download section of SGP and download one of the Freeware programs offered for image edition.

The system sends groups of up to 5 images a time, if the need to submit more images rises, just click on the button "Send more images".

After the remittance, miniatures will be shown. Select the icon beside the image to edit the title and subtitle of each.

7th Step: Copyright (Assignment of Rights)

The SGP System provides the option of printing this copyright term, selecting the link "Print Copyright Transfer Statement", before printing, confirm if the two questions by the end of the term are answered.

After that this document must be sent to the Sociedade Brasileira de Nefrologia's head office by post or to the FAX: +55 (11) 5573-6000.

8th Step: Author's Approval

This is the last step to complete the article's submission, the author will have the option to preview his paper on the system and save a ".doc" version in his computer.

It is very important that the author select the link "Complete submission/Review" for his work to be referred to SBN's Secretariat for conference and submission confirmation.


By the end of your paper's submission, a message will be sent to the author's registered e-mail, informing if the submission was successful and the flux code of the article. If the article is "Non-compliant", the author can correct it accessing the system by the URL

It is possible to follow the processing of your article at any moment through the flux code automatically generated by the SGP, or even by your article's title.

IMPORTANT: The system generates e-mails automatically as your article is processed. It is invaluable that the SPAM filters are turned off in their respective providers, or that the e-mail account be configured to ACCEPT any message of the JBN's domain. For more information about how to configure your spam filter, please contact your access provider.


In the hypothesis of your article containing any spread sheet, convert it to a table using Word (or Wordperfect), copy and paste it on the 5th step submission screen.

If your article have any graphics, convert them to JPG image format or TIFF using the specifications indicated on the 6th step.