Serum Exosomal MicroRNAs as Potential Biomarkers for Centrally Mediated Abdominal Pain Syndrome

• Published in: The journal of pain Vol. 25; no. 11; p. 104616
• Main Authors: Yuming, Tang, Ying, Zhu, Jiani, Song, Weiyan, Yao, Duowu, Zou
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.11.2024
• Subjects: Centrally mediated abdominal pain syndrome; disorder of gut-brain interaction; exosome; functional gastrointestinal disorder; microRNA; functional gastrointestinal disorder; microRNA; Centrally mediated abdominal pain syndrome; disorder of gut-brain interaction; exosome
• ISSN: 1526-5900; 1528-8447; 1528-8447
• DOI: 10.1016/j.jpain.2024.104616

Centrally mediated abdominal pain syndrome (CAPS) has generated a heavy disease burden worldwide. This study aimed to explore the serum exosomal microRNAs (miRNAs) as potential diagnostic biomarkers for CAPS. From September 2022 to October 2023, 97 patients with CAPS and 96 healthy subjects were enrolled. Differentially expressed serum exosomal miRNAs between patients with CAPS and healthy controls were identified by high-throughput sequencing and quantitative real-time polymerase chain reaction. The receiver operating characteristic curves and multivariate logistic regression analysis were used to evaluate the diagnostic value of the serum exosomal miRNAs. MiR-6850-5p, miR-194-5p, miR-199a-3p, and miR-4525 were significantly downregulated in serum exomes of CAPS patients compared with healthy controls, which yielded the area under curve (AUC) values of .914 (95% confidence interval (CI), .873–.954), .767 (95% CI, .695–.839), .617 (95% CI, .527–.708), and .561 (95% CI, .465–.656), respectively, to distinguish CAPS patients from healthy subjects. And AUC of the integration of the above 4 miRNAs was .931 (95% CI, .896–.966). Multivariate logistic regression indicated that hsa-miR-6850-5p (odds ratio (OR) = .046, P < .001), anxiety (OR = 7.670, P = .025), and depression (OR = 22.967, P = .008) were the independent predictors of CAPS. Serum exosomal miR-6850-5p is a promising diagnostic biomarker for CAPS. This study may be the first to explore serum exosomal miRNAs as new diagnostic biomarkers for CAPS, and the findings may help clinicians to access comprehensive understanding and accurate diagnosis of CAPS. •The study may be the first to seek biomarkers for centrally mediated abdominal pain syndrome (CAPS).•This study also explored the relations between anxiety, depression, and CAPS.•The findings will provide a more comprehensive understanding of CAPS for clinicians.