Research Article Details

Article ID: A21926
PMID: 24961681
Source: Pediatr Obes
Title: Oral fructose absorption in obese children with non-alcoholic fatty liver disease.
Abstract: BACKGROUND: Fructose intake is associated with non-alcoholic fatty liver disease (NAFLD) development. OBJECTIVE: The objective of this study was to measure fructose absorption/metabolism in paediatric NAFLD compared with obese and lean controls. METHODS: Children with histologically proven NAFLD, and obese and lean controls received oral fructose (1&#8201;g&#8201;kg(-1) ideal body weight). Serum glucose, insulin, uric acid, and fructose, urine uric acid, urine fructose, and breath hydrogen levels were measured at baseline and multiple points until 360&#8201;min after fructose ingestion. RESULTS: Nine NAFLD (89% Hispanic, mean age 14.3 years, mean body mass index [BMI] 35.3&#8201;kg&#8201;m(-2)), six obese controls (67% Hispanic, mean age 12.7 years, mean BMI 31.0&#8201;kg&#8201;m(-2)) and nine lean controls (44% Hispanic, mean age 14.3 years, mean BMI 19.4&#8201;kg&#8201;m(-2)) were enrolled. Following fructose ingestion, NAFLD vs. lean controls had elevated serum glucose, insulin and uric acid (P&#8201;<&#8201;0.05), higher urine uric acid (P&#8201;=&#8201;0.001), but lower fructose excretion (P&#8201;=&#8201;0.002) and lower breath hydrogen 180-min AUC (P&#8201;=&#8201;0.04). NAFLD vs. obese controls had similar post-fructose serum glucose, insulin, urine uric acid and breath hydrogen, but elevated serum uric acid (P&#8201;<&#8201;0.05) and lower urine fructose excretion (P&#8201;=&#8201;0.02). CONCLUSIONS: Children with NAFLD absorb and metabolize fructose more effectively than lean subjects, associated with an exacerbated metabolic profile following fructose ingestion.
DOI: 10.1111/ijpo.238