Related Experiment Video
Updated: Jan 23, 2026

Tear-Derived Exosomal miR-15a as New Diagnostic Tool for Diabetic Retinopathy
Published on: December 30, 2025
Urinary Exosome miR-424 and miR-218 as Biomarkers for Type 1 Diabetes in Children
Insights
Urinary exosomal microRNAs miR-424 and miR-218 show promise as biomarkers for detecting Type 1 diabetes (T1D) in children. These microRNAs may also help predict T1D prognosis in pediatric patients.
Area of Science:
- Biochemistry
- Molecular Biology
- Pediatrics
Background:
- Exosomes are emerging as critical biomarkers for various diseases.
- Type 1 diabetes (T1D) is increasingly prevalent in children globally.
- Understanding urinary exosomal microRNAs (miRNAs) in pediatric T1D is crucial.
Purpose of the Study:
- To investigate the role of urinary exosomal miRNAs in pediatric Type 1 diabetes.
- To identify potential miRNA biomarkers for T1D detection in children.
Main Methods:
- Urinary samples collected from 30 healthy children and 30 children with T1D.
- Exosomes isolated via centrifugation and characterized using electron microscopy and western blot.
- Urinary exosomal miRNAs sequenced and validated using real-time quantitative PCR; diagnostic accuracy assessed by ROC analysis.
Main Results:
- Elevated urinary exosomal miR-424 and miR-218 expression observed in children with T1D compared to healthy controls.
- Urinary exosomal miR-424 and miR-218 demonstrated high accuracy in diagnosing T1D in children.
Conclusions:
- Urinary exosomal miR-424 and miR-218 serve as potential biomarkers for T1D detection in pediatric populations.
- These miRNAs may offer predictive value for T1D prognosis in children.
Background:
Exosomes are potential markers for several diseases and health problems. Type 1 diabetes (T1D) has increasingly been reported in children and the world T1D has become the main type of diabetes in children. This study aimed to understand the function of urinary exosomal miRNAs in T1D in children.
Methods:
We collected urinary samples from 30 healthy controls and 30 T1D in children. All exosomes were isolated with a combined centrifugation and were characterized by electron microscopy and western blot. The small RNA sequence was used to detect the urinary exosomal miRNAs, and miRNA markers were validated by real-time quantitative PCR. Two exosome diagnostic miRNAs were confirmed by receiver operating characteristic analyses.
Results:
In this study, we found higher urinary exosomal miR-424 and miR-218 expression in T1D in children than in healthy controls. Urinary exosomal miR-424 and miR-218 showed better accuracy for T1D diagnose in children.
Conclusions:
Our results suggest that urinary exosomal miR-424 and miR-218 are biomarkers for T1D detection in children; miR-424 and miR-218 may be predictive of T1D prognosis in children.
Related Concept Videos
Diabetes Mellitus: Type 2 and Gestational
Diabetes Mellitus: Overview and Type I Subtype
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Overview of Exosomes
Stahl et al. discovered exosomes in 1983, but the exosomes were initially considered waste products released from the...
Pathophysiology of Diabetes
Type 1 diabetes is characterized by autoimmune-mediated destruction of pancreatic β cells, with environmental factors potentially triggering this process in genetically susceptible individuals. Despite many not having a family history, certain genes increase susceptibility,...
Introduction to Urinary System
The kidneys are bean-shaped organs located in the retroperitoneal space, on either side of the vertebral column, between the T12 and L3 vertebrae. They are partially protected by the rib cage and surrounded by perirenal fat, which provides cushioning. They are responsible for urine formation and play critical roles in regulating blood pressure, electrolyte levels, and hormone production. The ureters...
Urinary Bladder
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...

