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- Title
Similar Weight Loss Induces Greater Improvements in Insulin Sensitivity and Liver Function among Individuals with NAFLD Compared to Individuals without NAFLD.
- Authors
Sookthai, Disorn; Gonzalez Maldonado, Sandra; Sowah, Solomon A.; Grafetstätter, Mirja; Johnson, Theron; Kaaks, Rudolf; Kühn, Tilman; Schübel, Ruth; Nonnenmacher, Tobias; von Stackelberg, Oyunbileg; Schlett, Christopher L.; Kauczor, Hans-Ulrich; Nattenmüller, Johanna; Nabers, Diana; Kirsten, Romy; Ulrich, Cornelia M.
- Abstract
Background: Preliminary evidence suggests that weight loss among obese has differential metabolic effects depending on the presence of non-alcoholic fatty liver disease (NAFLD). We assessed whether NAFLD predisposes to differential changes in liver fat content, liver function, and metabolic parameters upon diet-induced weight loss in a 50-week intervention trial. Methods: 143 overweight and obese non-smokers underwent a 12-week dietary intervention and a 38-week follow-up. Diet-induced changes in anthropometric measures, circulating biomarkers, and magnetic resonance (MR)-derived liver fat content and adipose tissue volumes were evaluated by mixed linear models stratifying by NAFLD at baseline. Results: The prevalence of NAFLD at baseline was 52%. Diet-induced weight loss after 12 (NAFLD: 4.8 ± 0.5%, No NAFLD: 5.1 ± 0.5%) and 50 weeks (NAFLD: 3.5 ± 0.7%, No NAFLD: 3.5 ± 0.9%) was similar in both groups, while the decrease in liver fat was significantly greater in the NAFLD group (week 12: 32.9 ± 9.5% vs. 6.3 ± 4.0%; week 50: 23.3 ± 4.4% vs. 5.0 ± 4.2%). Decreases in biomarkers of liver dysfunction (GGT, ALT, AST) and HOMA IR were also significantly greater in the NAFLD group. Other metabolic parameters showed no significant differences. Conclusion: Our data suggest that individuals with NAFLD show greater improvements of liver function and insulin sensitivity after moderate diet-induced weight loss than individuals without NAFLD.
- Subjects
LIVER physiology; REDUCING diets; ADIPOSE tissues; ANTHROPOMETRY; BIOMARKERS; FATTY liver; INSULIN sensitivity; LIVER; MAGNETIC resonance imaging; WEIGHT loss; RANDOMIZED controlled trials; TREATMENT duration; DESCRIPTIVE statistics; DIAGNOSIS
- Publication
Nutrients, 2019, Vol 11, Issue 3, p544
- ISSN
2072-6643
- Publication type
Article
- DOI
10.3390/nu11030544