PMID- 31121167 OWN - NLM STAT- MEDLINE DCOM- 20190924 LR - 20190925 IS - 1528-0012 (Electronic) IS - 0016-5085 (Linking) VI - 157 IP - 3 DP - 2019 Sep TI - Liver Fibrosis and Metabolic Alterations in Adults With alpha-1-antitrypsin Deficiency Caused by the Pi*ZZ Mutation. PG - 705-719.e18 LID - S0016-5085(19)40894-9 [pii] LID - 10.1053/j.gastro.2019.05.013 [doi] AB - BACKGROUND & AIMS: Alpha-1 antitrypsin deficiency (AATD) is among the most common genetic disorders. Severe AATD is caused by a homozygous mutation in the SERPINA1 gene that encodes the Glu342Lys substitution (called the Pi*Z mutation, Pi*ZZ genotype). Pi*ZZ carriers may develop lung and liver diseases. Mutation-associated lung disorders have been well studied, but less is known about the effects in liver. We assessed the liver disease burden and associated features in adults with this form of AATD. METHODS: We collected data from 554 Pi*ZZ adults (403 in an exploratory cohort, 151 in a confirmatory cohort), in 9 European countries, with AATD who were homozygous for the Pi*Z mutation, and 234 adults without the Pi*Z mutation (controls), all without pre-existing liver disease. We collected data on demographic parameters, comorbidities, lung- and liver-related health, and blood samples for laboratory analysis. Liver fibrosis was assessed non-invasively via the serum tests Aspartate Aminotransferase to Platelet Ratio Index and HepaScore and via transient elastography. Liver steatosis was determined via transient elastography-based controlled attenuation parameter. We performed histologic analyses of livers from transgenic mice that overexpress the AATD-associated Pi*Z variant. RESULTS: Serum levels of liver enzymes were significantly higher in Pi*ZZ carriers vs controls. Based on non-invasive tests for liver fibrosis, significant fibrosis was suspected in 20%-36% of Pi*ZZ carriers, whereas signs of advanced fibrosis were 9- to 20-fold more common in Pi*ZZ carriers compared to non-carriers. Male sex; age older than 50 years; increased levels of alanine aminotransferase, aspartate aminotransferase, or gamma-glutamyl transferase; and low numbers of platelets were associated with higher liver fibrosis burden. We did not find evidence for a relationship between lung function and liver fibrosis. Controlled attenuation parameter >/=280 dB/m, suggesting severe steatosis, was detected in 39% of Pi*ZZ carriers vs 31% of controls. Carriers of Pi*ZZ had lower serum concentrations of triglyceride and low- and very-low-density lipoprotein cholesterol than controls, suggesting impaired hepatic secretion of lipid. Livers from Pi*Z-overexpressing mice had steatosis and down-regulation of genes involved in lipid secretion. CONCLUSIONS: In studies of AATD adults with the Pi*ZZ mutation, and of Pi*Z-overexpressing mice, we found evidence of liver steatosis and impaired lipid secretion. We identified factors associated with significant liver fibrosis in patients, which could facilitate hepatologic assessment and counseling of individuals who carry the Pi*ZZ mutation. ClinicalTrials.gov Number NCT02929940. CI - Copyright (c) 2019 AGA Institute. Published by Elsevier Inc. All rights reserved. FAU - Hamesch, Karim AU - Hamesch K AD - Coordinating Center for Alpha1-Antitrypsin Deficiency-Related Liver Disease of the European Reference Network "Rare Liver" and the European Association for the Study of the Liver Registry Group "Alpha1-Liver," University Hospital Aachen, Aachen, Germany; Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Mandorfer, Mattias AU - Mandorfer M AD - Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University Vienna, Vienna, Austria. FAU - Pereira, Vitor M AU - Pereira VM AD - Department of Gastroenterology, Centro Hospitalar do Funchal, Madeira, Portugal. FAU - Moeller, Linda S AU - Moeller LS AD - Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark. FAU - Pons, Monica AU - Pons M AD - Liver Unit, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute, Universitat Autonoma de Barcelona, Barcelona, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Hepaticas y Digestivas, Instituto de Salud Carlos III, Madrid, Spain. FAU - Dolman, Grace E AU - Dolman GE AD - Department of Hepatology, Cambridge University Hospitals National Health Service Foundation Trust, Cambridge, UK. FAU - Reichert, Matthias C AU - Reichert MC AD - Department of Medicine II, Saarland University Medical Center, Saarland University, Homburg, Germany. FAU - Schneider, Carolin V AU - Schneider CV AD - Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Woditsch, Vivien AU - Woditsch V AD - Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Voss, Jessica AU - Voss J AD - Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Lindhauer, Cecilia AU - Lindhauer C AD - Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Fromme, Malin AU - Fromme M AD - Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Spivak, Igor AU - Spivak I AD - Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Guldiken, Nurdan AU - Guldiken N AD - Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Zhou, Biaohuan AU - Zhou B AD - Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Arslanow, Anita AU - Arslanow A AD - Department of Medicine II, Saarland University Medical Center, Saarland University, Homburg, Germany; Department of Internal Medicine I, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany. FAU - Schaefer, Benedikt AU - Schaefer B AD - Department of Internal Medicine I, Medical University Innsbruck, Innsbruck, Austria. FAU - Zoller, Heinz AU - Zoller H AD - Department of Internal Medicine I, Medical University Innsbruck, Innsbruck, Austria. FAU - Aigner, Elmar AU - Aigner E AD - Department of Internal Medicine I, Paracelsus Medical University, Salzburg, Austria. FAU - Reiberger, Thomas AU - Reiberger T AD - Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University Vienna, Vienna, Austria. FAU - Wetzel, Martin AU - Wetzel M AD - Department of Medicine I, Charite-Universitaetsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany. FAU - Siegmund, Britta AU - Siegmund B AD - Department of Medicine I, Charite-Universitaetsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany. FAU - Simoes, Carolina AU - Simoes C AD - Gastroenterology Department, Centro Hospitalar Lisboa Norte, Lisbon, Portugal. FAU - Gaspar, Rui AU - Gaspar R AD - Gastroenterology Department, Centro Hospitalar de Sao Joao, Faculty of Medicine of Porto University, Porto, Portugal. FAU - Maia, Luis AU - Maia L AD - Gastroenterology Department, Centro Hospitalar do Porto, Porto, Portugal. FAU - Costa, Dalila AU - Costa D AD - Gastroenterology Department, Hospital de Braga, Braga, Portugal. FAU - Bento-Miranda, Mario AU - Bento-Miranda M AD - Gastroenterology Department, Hospital Universitario de Coimbra, Coimbra, Portugal. FAU - van Helden, Josef AU - van Helden J AD - Medical Care Centre, Dr Stein and Colleagues, Moenchengladbach, Germany. FAU - Yagmur, Eray AU - Yagmur E AD - Medical Care Centre, Dr Stein and Colleagues, Moenchengladbach, Germany. FAU - Bzdok, Danilo AU - Bzdok D AD - Department of Psychiatry, Psychotherapy and Psychosomatics, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany; Julich Aachen Research Alliance-Brain, Aachen, Germany. FAU - Stolk, Jan AU - Stolk J AD - Clinic for Pulmonology, Leiden University Medical Center, Leiden, The Netherlands. FAU - Gleiber, Wolfgang AU - Gleiber W AD - Clinic for Pulmonology, University Hospital Frankfurt, Frankfurt, Germany. FAU - Knipel, Verena AU - Knipel V AD - Department of Pneumology, Cologne Merheim Hospital, Kliniken der Stadt Koln gGmbH, Witten/Herdecke University, Faculty of Health/School of Medicine, Cologne, Germany. FAU - Windisch, Wolfram AU - Windisch W AD - Department of Pneumology, Cologne Merheim Hospital, Kliniken der Stadt Koln gGmbH, Witten/Herdecke University, Faculty of Health/School of Medicine, Cologne, Germany. FAU - Mahadeva, Ravi AU - Mahadeva R AD - Department of Respiratory Medicine, Cambridge National Institute for Health Research, Biomedical Research Centre, University of Cambridge, Cambridge, UK. FAU - Bals, Robert AU - Bals R AD - Department of Medicine V, Saarland University Medical Center, Saarland University, Homburg, Germany. FAU - Koczulla, Rembert AU - Koczulla R AD - Clinic for Pneumology, Marburg University Hospital, Marburg, Germany; Institute for Pulmonary Rehabilitation Research, Schoen Clinic Berchtesgadener Land, Member of the Deutsches Zentrum fur Lungenforschung, Schonau am Konigssee, Germany. FAU - Barrecheguren, Miriam AU - Barrecheguren M AD - Department of Pneumology, Vall d'Hebron University Hospital, Centro de Investigacion Biomedica en Red de Enfermedades Respiratorias, Barcelona, Spain. FAU - Miravitlles, Marc AU - Miravitlles M AD - Department of Pneumology, Vall d'Hebron University Hospital, Centro de Investigacion Biomedica en Red de Enfermedades Respiratorias, Barcelona, Spain. FAU - Janciauskiene, Sabina AU - Janciauskiene S AD - Clinic for Pneumology, German Center for Lung Research, Medical University Hannover, Hannover, Germany. FAU - Stickel, Felix AU - Stickel F AD - Department of Gastroenterology and Hepatology, University Hospital of Zurich, Zurich, Switzerland. FAU - Lammert, Frank AU - Lammert F AD - Department of Medicine II, Saarland University Medical Center, Saarland University, Homburg, Germany. FAU - Liberal, Rodrigo AU - Liberal R AD - Gastroenterology Department, Centro Hospitalar de Sao Joao, Faculty of Medicine of Porto University, Porto, Portugal. FAU - Genesca, Joan AU - Genesca J AD - Liver Unit, Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute, Universitat Autonoma de Barcelona, Barcelona, Spain; Centro de Investigacion Biomedica en Red de Enfermedades Hepaticas y Digestivas, Instituto de Salud Carlos III, Madrid, Spain. FAU - Griffiths, William J AU - Griffiths WJ AD - Department of Hepatology, Cambridge University Hospitals National Health Service Foundation Trust, Cambridge, UK. FAU - Trauner, Michael AU - Trauner M AD - Division of Gastroenterology and Hepatology, Department of Internal Medicine III, Medical University Vienna, Vienna, Austria. FAU - Krag, Aleksander AU - Krag A AD - Department of Gastroenterology and Hepatology, Odense University Hospital, Odense, Denmark. FAU - Trautwein, Christian AU - Trautwein C AD - Coordinating Center for Alpha1-Antitrypsin Deficiency-Related Liver Disease of the European Reference Network "Rare Liver" and the European Association for the Study of the Liver Registry Group "Alpha1-Liver," University Hospital Aachen, Aachen, Germany; Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. FAU - Strnad, Pavel AU - Strnad P AD - Coordinating Center for Alpha1-Antitrypsin Deficiency-Related Liver Disease of the European Reference Network "Rare Liver" and the European Association for the Study of the Liver Registry Group "Alpha1-Liver," University Hospital Aachen, Aachen, Germany; Medical Clinic III, Gastroenterology, Metabolic Diseases and Intensive Care, University Hospital Rheinisch-Westfalische Technische Hochschule Aachen, Aachen, Germany. Electronic address: pstrnad@ukaachen.de. CN - European Alpha1-Liver Study Group LA - eng SI - ClinicalTrials.gov/NCT02929940 PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20190520 PL - United States TA - Gastroenterology JT - Gastroenterology JID - 0374630 RN - 0 (SERPINA1 protein, human) RN - 0 (alpha 1-Antitrypsin) SB - IM CIN - Transl Gastroenterol Hepatol. 2019 Dec 12;4:82. PMID: 32039287 MH - Adult MH - Age Factors MH - Aged MH - Animals MH - Case-Control Studies MH - Elasticity Imaging Techniques MH - Europe MH - Fatty Liver/blood/diagnosis/*etiology MH - Female MH - Genetic Predisposition to Disease MH - Homozygote MH - Humans MH - *Lipid Metabolism MH - Liver/diagnostic imaging/*metabolism/pathology MH - Liver Cirrhosis/blood/diagnosis/*etiology MH - Liver Function Tests MH - Male MH - Mice, Transgenic MH - Middle Aged MH - *Mutation MH - Phenotype MH - Risk Factors MH - Sex Factors MH - alpha 1-Antitrypsin/*genetics MH - alpha 1-Antitrypsin Deficiency/*complications/diagnosis/enzymology/genetics OTO - NOTNLM OT - ALT OT - AST OT - Rare Liver Disease OT - TE EDAT- 2019/05/24 06:00 MHDA- 2019/09/26 06:00 CRDT- 2019/05/24 06:00 PHST- 2018/05/19 00:00 [received] PHST- 2019/05/07 00:00 [revised] PHST- 2019/05/09 00:00 [accepted] PHST- 2019/05/24 06:00 [pubmed] PHST- 2019/09/26 06:00 [medline] PHST- 2019/05/24 06:00 [entrez] AID - S0016-5085(19)40894-9 [pii] AID - 10.1053/j.gastro.2019.05.013 [doi] PST - ppublish SO - Gastroenterology. 2019 Sep;157(3):705-719.e18. doi: 10.1053/j.gastro.2019.05.013. Epub 2019 May 20.