Observational Study
Copyright ©The Author(s) 2024. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Clin Pediatr. Mar 9, 2024; 13(1): 90755
Published online Mar 9, 2024. doi: 10.5409/wjcp.v13.i1.90755
Gut microbiota predicts the diagnosis of ulcerative colitis in Saudi children
Mohammad El Mouzan, Ahmed Al Sarkhy, Asaad Assiri
Mohammad El Mouzan, Ahmed Al Sarkhy, Asaad Assiri, Department of Pediatrics, Gastroenterology Unit, King Saud University, Riyadh 11461, Saudi Arabia
Author contributions: El Mouzan M designed and supervised the study and wrote the manuscript; Al Sarkhy A and Assiri A participated equally in recruiting participants and revising the manuscript draft; All authors have read and approved the final manuscript.
Supported by Researchers Supporting Project, King Saud University, Riyadh, Saudi Arabia, No. RSPD2024R864.
Institutional review board statement: The study was approved by the Institutional Board Review of the College of Medicine, King Saud University in Riyadh, Kingdom of Saudi Arabia [No: 10/2647/IRB,26/6/2010]. Guardians and/or children signed informed consent and/or assent before enrollment in the study.
Informed consent statement: Guardians and/or children signed informed consent and/or assent before enrollment in the study.
Conflict-of-interest statement: All authors have no conflicts of interest to disclose.
Data sharing statement: Datasets are available from the corresponding author at email: drmouzan@gmail.com.
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.
Open-Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Mohammad El Mouzan, MD, Full Professor, Department of Pediatrics, King Saud University, 1, King Abdullah Street, Riyadh 11461, Saudi Arabia. melmouzan@ksu.edu.sa
Received: December 12, 2023
Peer-review started: December 12, 2023
First decision: December 19, 2023
Revised: January 1, 2024
Accepted: February 6, 2024
Article in press: February 6, 2024
Published online: March 9, 2024
ARTICLE HIGHLIGHTS
Research background

Microbiota dysbiosis has been reported in patients with ulcerative colitis (UC).

Research motivation

The role of the microbiota in predicting UC has rarely been reported.

Research objectives

To evaluate the predictive power of fecal bacteria and bacteriophages for diagnosing UC in children.

Research methods

Metagenomic analysis of bacterial and bacteriophage DNA in the stool of children with newly diagnosed UC. The area under the curve (AUC) was calculated to evaluate the predictive power of the total bacteria and bacteriophages, and random forest analysis was used to identify important microbes for distinguishing UC patients from controls.

Research results

The discriminatory power of the entire bacterial species (AUC: 89.5%) and bacteriophages (AUC: 87.4%) was very high. The random forest classification algorithm analysis revealed the excellent predictive power of important bacterial species (AUC: 97.6%) and bacteriophages (AUC: 94.5%).

Research conclusions

The very high to excellent AUCs of fecal bacterial and viral species indicate the potential for the development of noninvasive microbiota-based tests for the diagnosis of UC in children. In addition, the identification of important bacteria and bacteriophages whose abundance is reduced in children with UC suggests the potential of preventive and adjuvant microbial therapy for UC.

Research perspectives

Future research in this area with larger sample sizes is needed to clarify the role of the microbiota in the diagnosis, prevention, and treatment of UC.