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World J Diabetes. Jun 15, 2026; 17(6): 120010
Published online Jun 15, 2026. doi: 10.4239/wjd.120010
Published online Jun 15, 2026. doi: 10.4239/wjd.120010
Improvement in glycemic control after bariatric surgery beyond weight loss
Maria Alejandra Cisneros, Natalia Portilla, Diana Parra, Carlos Llanos, Endocrinology Program, Universidad Militar Nueva Granada, Bogota 110221, Colombia
Oswaldo Rincon, Mauricio Alvarez, Isaac Guzman, Department of Endocrinology, Hospital Militar Central, Bogota 110221, Colombia
Catalina Uscategui, Department of Epidemiology, Hospital Militar Central, Bogota 110221, Colombia
Ian Romero, Medicine Program, Universidad Militar Nueva Granada, Bogota 110221, Colombia
Author contributions: Cisneros MA, Portilla N, Rincon O, and Uscategui C design and performed research, drafting and critical revision of the manuscript; Alvarez M, Guzan I, and Parra D contributed to analytic tools; Llanos C and Romero I contributed to interpretaron of results and helped with the writing. All authors have read and approved the final version of the manuscript and agree to be accountable for all aspects of the work.
AI contribution statement: During the writing and revision process, we used tools such as ChatGPT only as support for language editing. These tools helped us improve the English wording, reorganize some paragraphs, assist with translation, and make parts of the text clearer and easier to read, including sections of the response to reviewers. All study-related decisions, data analysis, interpretation of the findings, and final conclusions were carried out entirely by the authors. The scientific content of the manuscript was written, reviewed, and approved by all authors, and no AI tool was used to generate data or make scientific interpretations. In addition, no figures, images, or graphical material generated by AI were included in the manuscript.
Institutional review board statement: The study was conducted in accordance with the Declaration of Helsinki and approved by the Institutional Ethics Committee of the Hospital Militar Central (Act No. 05, March 28, 2025). Additionally, the protocol received institutional approval from the Research Committee (Act No. 06, May 7, 2025) and the Sub-directorate of Teaching and Scientific Investigation under Project Code 2025009.
Informed consent statement: Patient consent was waived by the Institutional Ethics Committee due to the retrospective, observational nature of the study. The research involved the analysis of existing medical records and did not pose any risk to the participants, ensuring the confidentiality and anonymity of all personal data in compliance with institutional and national ethical guidelines.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
STROBE statement: The authors have read the STROBE Statement-checklist of items, and the manuscript was prepared and revised according to the STROBE Statement- checklist of items.
Data sharing statement: No additional data are available.
Corresponding author: Mauricio Alvarez, Affiliate Associate Professor, Department of Endocrinology, Hospital Militar Central, Tv. 3C No. 49-02, Bogota 110221, Colombia.
Received: February 13, 2026
Revised: March 11, 2026
Accepted: May 13, 2026
Published online: June 15, 2026
Processing time: 119 Days and 9.8 Hours
Revised: March 11, 2026
Accepted: May 13, 2026
Published online: June 15, 2026
Processing time: 119 Days and 9.8 Hours
Core Tip
Core Tip: Obesity is a chronic disease with high prevalence and is associated with multiple metabolic comorbidities, including type 2 diabetes mellitus, dyslipidemia, and arterial hypertension. Bariatric surgery has been established as an effective therapeutic strategy; however, in Colombia, there is limited descriptive information on the clinical and metabolic characteristics of patients undergoing this procedure and their early postoperative follow-up.