Analysis of Sphingolipids in Pediatric Patients with Cholelithiasis-A Preliminary Study

Area of Science:

• Biochemistry
• Pediatric Gastroenterology
• Metabolomics

Background:

• Sphingolipid metabolism disturbances are linked to various diseases.
• No prior data existed on sphingolipids and ceramides in pediatric cholelithiasis.
• This study investigates serum sphingolipid profiles in children with gallstones.

Purpose of the Study:

• To evaluate serum sphingolipid concentrations in pediatric patients with gallstones.
• To identify specific sphingolipids associated with cholelithiasis.
• To explore relationships between sphingolipids and anthropometric/biochemical parameters.

Main Methods:

• Quantitative analysis of serum sphingolipids using ultra-high-performance liquid chromatography-tandem mass spectrometry.
• Prospective study design comparing 48 pediatric patients with gallstones to 38 controls.
• Statistical analysis including adjustments for age, gender, obesity, and lipid levels.

Main Results:

• Significant differences in total cholesterol, sphinganine, various ceramides, and lactosylceramides between patients and controls.
• Adjusted analysis identified key differentiating sphingolipids: decreased sphinganine, C14:0-Cer, C16:0-Cer, C24:1-LacCer, C24:0-LacCer, and increased C20:0-Cer, C24:1-Cer, C16:0-LacCer, C18:1-LacCer.
• C16:0-Cer demonstrated the highest diagnostic accuracy (AUC, specificity, sensitivity) for cholelithiasis.

Conclusions:

• Serum sphingolipid profiles are significantly altered in pediatric cholelithiasis.
• Specific sphingolipids, particularly C16:0-Cer, show potential as diagnostic biomarkers.
• Further research may establish sphingolipids as valuable indicators in pediatric gallstone disease.