Urinary bile acids in population screening for inapparent liver disease

Area of Science:

• Hepatology and Gastroenterology
• Biochemistry
• Diagnostic Medicine

Background:

• Latent liver disease poses a significant public health challenge.
• Early detection of liver disease is crucial for effective management.
• Non-invasive biomarkers are needed for widespread screening.

Purpose of the Study:

• To evaluate the diagnostic potential of urinary bile acids for detecting latent liver disease.
• To compare radioimmunoassay and enzymatic methods for measuring urine bile acids.
• To assess the utility of urine bile acids in screening for sub-clinical hepatitis C.

Main Methods:

• Prospective cohort study of 151 adults attending a health fair.
• Measurement of urinary bile acids using radioimmunoassay and enzymatic assays.
• Correlation of urine bile acid levels with routine liver profiles and serum bile acids.

Main Results:

• Urine bile acids correctly predicted liver test outcomes in 89% of subjects.
• Urine bile acid testing showed accuracy comparable to serum ALT/AST for predicting anti-HCV status.
• Urinary bile acids demonstrated a high correlation with serum bile acids (r=0.76-0.96).

Conclusions:

• Urinary bile acids are a valuable tool for population-based screening of latent liver disease.
• This non-invasive method offers a promising alternative for detecting sub-clinical hepatitis C.
• Urine bile acids serve as reliable surrogate markers for liver disease assessment.