Hepatic Inflammation and Physical Performance in Patients With NASH (HELP)

Influence of Hepatic Inflammation and Hepatocellular Apoptosis on Physical Performance and Training Effect in Patients With Non - Alcoholic Steatohepatitis

The aim of the study is to examine the influence of hepatic inflammation or damage on physical performance (maximal oxygen uptake, VO2max) depending on the histologic state of the liver. The study population are patients with fatty liver disease and non-alcoholic steatohepatitis (NASH). All study participants obtain an individual training plan with individual and group training sessions for a period of 8 weeks. At the beginning and end of the training phase a sport physiological examination is carried out. In the study group the effect of regular examinations is surveyed by surrogate parameters of liver inflammation.

The study is planned over a period of 24 months. Study participants should be twice examined sport physiologically in a period of 12 weeks. In the study group the influence of regular exercise on surrogate parameters of liver inflammation is investigated over a study period of 8 weeks. Before the exercise all study participants are subjected to a first physiological examination (about 3 hours). This includes a physical examination with detection of body weight, waist circumference and body fat analysis, venous blood, oral glucose tolerance test, ultrasonography of the liver and determination of endothelial function (flow-mediated vasodilatation, FMD) by Doppler analysis. Within 4 weeks after the first examination a sport physical examination is carried out at the Institute of Sports Science at the University of Mainz. This examination contains identification of physical fitness and individual lactate performance diagnostics. In addition, indirect calorimetry is carried out under exercise conditions using spiroergometry to determine the maximal oxygen uptake (VO2max) with special emphasis on the fat metabolism rate at low physical activity. Subsequently to the examination an 8-week training period based on individual training / performance plans is followed. The training plans include independently running exercises for 30-45 minutes two to three times a week. Every two weeks group training sessions are offered accompanied by a sports physician. Within the planed four groups training sessions blood samples will be taken to determinate free circulating DNA and assess lactate values under exercise conditions. After the training phase, a second sport physical examination including physical performance and a final physiological examination including surrogate parameters of liver inflammation are carried out. For statistical analysis, the physical performance of the study participants is examined. Hence patients with histologically proven NASH (NAS score) and confirmed inflammation (increased M30 antigen) are compared to age and gender matched patients with histologically proven fatty liver without inflammation reaction as well as to retrospective data of healthy subjects.

Patients will be offered an individual training program. Physical performance and surrogate parameters of liver inflammation will assessed in physical examinations before and after the training phase.

Training period of 8 weeks: Independently running exercises for 30-45 minutes two to three times a week. Every two weeks group training sessions are offered accompanied by a sports physician.

Inclusion Criteria: histologically proven NASH or fatty liver disease Exclusion Criteria: bariatric surgery within the last 5 years BMI< 18,5 kg/m2 or > 45 kg/m2 heart attack or stroke within the last 6 months higher-grade coronary artery disease (CAD III-IV) chronic obstructive pulmonary disease (asthma , COPD) renal insufficiency uncontrolled hypertension or metabolic abnormalities alcohol consumption > 30 g / day (male) and > 20 g / day (female) pregnancy concomitant medication able to cause a secondary NASH (eg tamoxifen , corticosteroids ) concomitant medication able to affect inflammation (eg TNF antagonists) concomitant anticoagulant medication (eg phenprocoumon, NOAC) other immunological or inflammatory diseases (eg, systemic lupus erythematosus) musculoskeletal disorders, preventing sport physiological investigations

Clark JM. The epidemiology of nonalcoholic fatty liver disease in adults. J Clin Gastroenterol. 2006 Mar;40 Suppl 1:S5-10. doi: 10.1097/01.mcg.0000168638.84840.ff.

Blachier M, Leleu H, Peck-Radosavljevic M, Valla DC, Roudot-Thoraval F. The burden of liver disease in Europe: a review of available epidemiological data. J Hepatol. 2013 Mar;58(3):593-608. doi: 10.1016/j.jhep.2012.12.005.

Vernon G, Baranova A, Younossi ZM. Systematic review: the epidemiology and natural history of non-alcoholic fatty liver disease and non-alcoholic steatohepatitis in adults. Aliment Pharmacol Ther. 2011 Aug;34(3):274-85. doi: 10.1111/j.1365-2036.2011.04724.x. Epub 2011 May 30.

Sanyal AJ. NASH: A global health problem. Hepatol Res. 2011 Jul;41(7):670-4. doi: 10.1111/j.1872-034X.2011.00824.x.

Mehal WZ. The Gordian Knot of dysbiosis, obesity and NAFLD. Nat Rev Gastroenterol Hepatol. 2013 Nov;10(11):637-44. doi: 10.1038/nrgastro.2013.146. Epub 2013 Aug 20.

Schattenberg JM, Schuppan D. Nonalcoholic steatohepatitis: the therapeutic challenge of a global epidemic. Curr Opin Lipidol. 2011 Dec;22(6):479-88. doi: 10.1097/MOL.0b013e32834c7cfc.

Fargion S, Porzio M, Fracanzani AL. Nonalcoholic fatty liver disease and vascular disease: state-of-the-art. World J Gastroenterol. 2014 Oct 7;20(37):13306-24. doi: 10.3748/wjg.v20.i37.13306.

Krasnoff JB, Painter PL, Wallace JP, Bass NM, Merriman RB. Health-related fitness and physical activity in patients with nonalcoholic fatty liver disease. Hepatology. 2008 Apr;47(4):1158-66. doi: 10.1002/hep.22137.

Noakes TD. Maximal oxygen uptake: "classical" versus "contemporary" viewpoints: a rebuttal. Med Sci Sports Exerc. 1998 Sep;30(9):1381-98. doi: 10.1097/00005768-199809000-00007.

Chalasani N, Younossi Z, Lavine JE, Diehl AM, Brunt EM, Cusi K, Charlton M, Sanyal AJ. The diagnosis and management of non-alcoholic fatty liver disease: practice Guideline by the American Association for the Study of Liver Diseases, American College of Gastroenterology, and the American Gastroenterological Association. Hepatology. 2012 Jun;55(6):2005-23. doi: 10.1002/hep.25762. No abstract available.

Sreenivasa Baba C, Alexander G, Kalyani B, Pandey R, Rastogi S, Pandey A, Choudhuri G. Effect of exercise and dietary modification on serum aminotransferase levels in patients with nonalcoholic steatohepatitis. J Gastroenterol Hepatol. 2006 Jan;21(1 Pt 1):191-8. doi: 10.1111/j.1440-1746.2005.04233.x.

Fealy CE, Haus JM, Solomon TP, Pagadala M, Flask CA, McCullough AJ, Kirwan JP. Short-term exercise reduces markers of hepatocyte apoptosis in nonalcoholic fatty liver disease. J Appl Physiol (1985). 2012 Jul;113(1):1-6. doi: 10.1152/japplphysiol.00127.2012. Epub 2012 May 10.

Bae JC, Suh S, Park SE, Rhee EJ, Park CY, Oh KW, Park SW, Kim SW, Hur KY, Kim JH, Lee MS, Lee MK, Kim KW, Lee WY. Regular exercise is associated with a reduction in the risk of NAFLD and decreased liver enzymes in individuals with NAFLD independent of obesity in Korean adults. PLoS One. 2012;7(10):e46819. doi: 10.1371/journal.pone.0046819. Epub 2012 Oct 22.

Kistler KD, Brunt EM, Clark JM, Diehl AM, Sallis JF, Schwimmer JB; NASH CRN Research Group. Physical activity recommendations, exercise intensity, and histological severity of nonalcoholic fatty liver disease. Am J Gastroenterol. 2011 Mar;106(3):460-8; quiz 469. doi: 10.1038/ajg.2010.488. Epub 2011 Jan 4.

Swain MG. Fatigue in liver disease: pathophysiology and clinical management. Can J Gastroenterol. 2006 Mar;20(3):181-8. doi: 10.1155/2006/624832.

Brun P, Castagliuolo I, Di Leo V, Buda A, Pinzani M, Palu G, Martines D. Increased intestinal permeability in obese mice: new evidence in the pathogenesis of nonalcoholic steatohepatitis. Am J Physiol Gastrointest Liver Physiol. 2007 Feb;292(2):G518-25. doi: 10.1152/ajpgi.00024.2006. Epub 2006 Oct 5.

Wigg AJ, Roberts-Thomson IC, Dymock RB, McCarthy PJ, Grose RH, Cummins AG. The role of small intestinal bacterial overgrowth, intestinal permeability, endotoxaemia, and tumour necrosis factor alpha in the pathogenesis of non-alcoholic steatohepatitis. Gut. 2001 Feb;48(2):206-11. doi: 10.1136/gut.48.2.206.

Miura K, Ohnishi H. Role of gut microbiota and Toll-like receptors in nonalcoholic fatty liver disease. World J Gastroenterol. 2014 Jun 21;20(23):7381-91. doi: 10.3748/wjg.v20.i23.7381.

Zhu L, Baker SS, Gill C, Liu W, Alkhouri R, Baker RD, Gill SR. Characterization of gut microbiomes in nonalcoholic steatohepatitis (NASH) patients: a connection between endogenous alcohol and NASH. Hepatology. 2013 Feb;57(2):601-9. doi: 10.1002/hep.26093. Epub 2013 Jan 8.

Huber Y, Pfirrmann D, Gebhardt I, Labenz C, Gehrke N, Straub BK, Ruckes C, Bantel H, Belda E, Clement K, Leeming DJ, Karsdal MA, Galle PR, Simon P, Schattenberg JM. Improvement of non-invasive markers of NAFLD from an individualised, web-based exercise program. Aliment Pharmacol Ther. 2019 Oct;50(8):930-939. doi: 10.1111/apt.15427. Epub 2019 Jul 25.

Pfirrmann D, Huber Y, Schattenberg JM, Simon P. Web-Based Exercise as an Effective Complementary Treatment for Patients With Nonalcoholic Fatty Liver Disease: Intervention Study. J Med Internet Res. 2019 Jan 2;21(1):e11250. doi: 10.2196/11250.

Pfirrmann D, Haller N, Huber Y, Jung P, Lieb K, Gockel I, Poplawska K, Schattenberg JM, Simon P. Applicability of a Web-Based, Individualized Exercise Intervention in Patients With Liver Disease, Cystic Fibrosis, Esophageal Cancer, and Psychiatric Disorders: Process Evaluation of 4 Ongoing Clinical Trials. JMIR Res Protoc. 2018 May 22;7(5):e106. doi: 10.2196/resprot.8607.