scholarly journals Independent Association of Physical Activity with Nonalcoholic Fatty Liver Disease and Alanine Aminotransferase Levels

2019 ◽  
Vol 8 (7) ◽  
pp. 1013 ◽  
Author(s):  
Jang ◽  
Lee ◽  
Lee ◽  
Kim
Keyword(s):  
Physical Activity ◽  
Liver Disease ◽  
Fatty Liver ◽  
Nonalcoholic Fatty Liver Disease ◽  
Alanine Aminotransferase ◽  
Fatty Liver Disease ◽  
Hepatocellular Injury ◽  
Nonalcoholic Fatty Liver ◽  
Independent Association ◽  
Lean Nafld

The aim of the current study was to examine the independent association of physical activity with nonalcoholic fatty liver disease (NAFLD) and aminotransferases while adjusting for obesity and diet. Cross-sectional data from 32,391 participants aged ≥ 20 years in the Korea National Health and Nutrition Examination Surveys (KNHANES) was analyzed by logistic regression models and general linear models. Physical activity was assessed from the questionnaire by health-enhancing physical activity (HEPA). The physical activity was negatively associated with NAFLD and lean NAFLD after adjustment for multiple factors with an odds ratio of 0.7 (95% CI, 0.6–0.8) and 0.5 (95% CI, 0.4–0.7) comparing the most active (HEPA active) and the least active (inactive) participants. Among the participants with NAFLD, physical activity also showed an independent negative association with alanine aminotransferase (ALT) levels but not with aspartate aminotransferase levels. These independent associations were not observed when comparing the minimally active and inactive participants except for the risk of lean NAFLD. Physical activity is independently associated with the degree of hepatocellular injury in patients with NAFLD as well as the risk of NAFLD and lean NAFLD in the general population. Sufficiently active physical activity greater than a minimally active level may be needed to lower the risk of NAFLD and ALT levels.

scholarly journals Lean Nonalcoholic Fatty Liver Disease and Risk of Incident Diabetes in a Euglycemic Population Receiving Health Checkups: A Cohort Study

2020 ◽  
Author(s):  
Limin Wei ◽  
Xin Cheng ◽  
Yulong Luo ◽  
Rongxuan Yang ◽  
Zitong Lei ◽  
...  
Keyword(s):  
Cohort Study ◽  
Liver Disease ◽  
Fatty Liver ◽  
Nonalcoholic Fatty Liver Disease ◽  
Fatty Liver Disease ◽  
Incident Diabetes ◽  
Benign Condition ◽  
Nonalcoholic Fatty Liver ◽  
Increased Risk ◽  
Lean Nafld

Abstract Background: Although recent evidence suggests that nonalcoholic fatty liver disease (NAFLD) is associated with insulin resistance and an increased risk of diabetes, the association between lean NAFLD and incident diabetes is unclear. This study aimed to investigate whether lean NAFLD and overweight/obese NAFLD have similar or dissimilar effects on the risk of new-onset diabetes.Methods: A longitudinal study was performed in 14,482 euglycemic adults who participated in a health check-up program. Fatty liver was diagnosed by abdominal ultrasonography. The outcome of interest was incident diabetes.Cox proportional hazards regression models were applied to calculate HRs with 95% CIs for future diabetes risk.Results: During the median 6.0 years of follow-up, 356 cases of diabetes occurred. Despite a low probability of hepatic fibrosis indicated by the BAAT score, lean NAFLD was positively associated with an increased risk of diabetes. Moreover, after adjusting for sociodemographic and potential confounders, the fullyadjusted HRs (95% CIs) for incident diabetes between lean NAFLD and overweight/obese NAFLD to the reference (lean without NAFLD) were 2.58 (95% CI 1.68 to 3.97) and 2.52 (95% CI 1.79 to 3.55), respectively. In post hoc analysis, the HR (95% CI) for diabetes comparing lean NAFLD to obese/overweight NAFLD was 1.02 (95% CI 0.68 to 1.54, p = 0.909). The results were robust to challenges in multiple subgroup analyses and appeared to be more pronounced for female participants (p for interaction = 0.005).Conclusions: In this cohort study, lean patients with NAFLD had a risk of incident type 2 diabetes similar to that of overweight/obese ones with NAFLD. These findings suggest that lean NAFLD is not a benign condition. Further investigations are needed to gain a better understanding of the pathogenesis and natural history of NAFLD in lean subjects.

Relation of Physical Activity to Prevalence of Nonalcoholic Fatty Liver Disease Independent of Cardiometabolic Risk

2015 ◽  
Vol 115 (1) ◽  
pp. 34-39 ◽  
Author(s):  
Ebenezer T. Oni ◽  
Rohan Kalathiya ◽  
Ehimen C. Aneni ◽  
Seth S. Martin ◽  
Michael J. Blaha ◽  
...  
Keyword(s):  
Physical Activity ◽  
Liver Disease ◽  
Fatty Liver ◽  
Nonalcoholic Fatty Liver Disease ◽  
Fatty Liver Disease ◽  
Cardiometabolic Risk ◽  
Nonalcoholic Fatty Liver

scholarly journals Physical Activity Is Prospectively Associated With Adolescent Nonalcoholic Fatty Liver Disease

2016 ◽  
Vol 62 (1) ◽  
pp. 110-117 ◽  
Author(s):  
Emma L. Anderson ◽  
Abigail Fraser ◽  
Laura D. Howe ◽  
Mark P. Callaway ◽  
Naveed Sattar ◽  
...  
Keyword(s):  
Physical Activity ◽  
Liver Disease ◽  
Fatty Liver ◽  
Nonalcoholic Fatty Liver Disease ◽  
Fatty Liver Disease ◽  
Nonalcoholic Fatty Liver

scholarly journals Noninvasive Markers of Improvement of Liver Steatosis Achieved by Weight Reduction in Patients with Nonalcoholic Fatty Liver Disease

2015 ◽  
Vol 53 (1) ◽  
pp. 56-64 ◽  
Author(s):  
Ionel Copaci ◽  
Ioana Lupescu ◽  
Elena Caceaune ◽  
Grethi Chiriac ◽  
G. Ismail
Keyword(s):  
Physical Activity ◽  
Liver Disease ◽  
Waist Circumference ◽  
Fatty Liver ◽  
Nonalcoholic Fatty Liver Disease ◽  
Weight Reduction ◽  
Fatty Liver Disease ◽  
Liver Steatosis ◽  
Moderate Intensity ◽  
Nonalcoholic Fatty Liver

Abstract Nonalcoholic fatty liver disease (NAFLD) is strongly associated with insulin resistance and metabolic syndrome, which are linked to obesity. The aim of the study was to assess if weight reduction through 12 months of lifestyle intervention and exercise would lead to improvement of steatosis. Methods. In a prospective observational study 86 overweight subjects (51 men, 35 women) with steatosis were recruited, after excluding other etiologies. Patients were assigned a caloric goal and a daily fat goal. Physical activity focused on moderate-intensity activities. Blood samples (biochemistry, HOMA-IR, cytokine levels, steatotest) were collected at entry and months 6 and 12. All subjects underwent abdominal CT scan before commencement and after 12 months to assess visceral and subcutaneous adipose tissue (VAT/SAT) area. Results. After 12 months baseline descriptive characteristics (weight, BMI, waist circumference) decreased significantly. Biochemical parameters that decreased significantly were: GGT (40.0 ± 18.0 vs 31.1 ± 13; p = 0.01), ALT (58.5 ± 23.5 vs 32,7 ± 14.8; p = 0.001), cholesterol (236.4 ± 54.8 vs 204.8 ± 91; p = 0.05), LDL (160.1 ± 47.4 vs 125.3 ± 40; p = 0.05) and HOMA-R (4.86 ± 0.63 vs 3 ± 0.41; p = 0.018). Steatotest improved significantly (0.68 ± 0.16 vs 0.38 ± 0.14; p = 0.02). Modification of adipocytokines was significant for leptin (p = 0.018) and adiponectin (p = 0.003). Factors associated with regression of steatosis were weight, BMI, ALT, waist circumference, GGT, HOMA, leptin, VAT and steatotest. Multivariate logistic regression showed the following factors related to improved steatosis: BMI < 25 kg/m2, ALT < 42 U/L, leptin < 10.5 ng/ml and adiponectin > 8.4 μg/ml. Conclusions. Overweight persons who achieve significant reductions in body weight through 12 months of physical activity and low caloric diet can decrease liver fat, VAT and SAT. Even in those with minimal weight loss ALT levels, steatosis, adipokines and cardiovascular risk factors improved.

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