1
|
Urias E, Chen VL. Screening for At-Risk Nonalcoholic Fatty Liver Disease in the Primary Care Setting. Semin Liver Dis 2023; 43:133-141. [PMID: 37105224 PMCID: PMC10668862 DOI: 10.1055/a-2082-5203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
While nonalcoholic fatty liver disease is a leading cause of end-stage liver disease, most patients with nonalcoholic fatty liver disease do not develop cirrhosis and its complications. Therefore, risk stratification using inexpensive, noninvasive screening modalities is critical to avoid overdiagnosis and overtreatment of a large proportion of the population. In this review, we discuss the data supporting screening and current professional society recommendations on this topic. Screening for at-risk nonalcoholic fatty liver disease is recommended in patients with risk factors including diabetes, the metabolic syndrome, hepatic steatosis, and elevated aminotransferases. Screening typically consists of noninvasive testing using serum biomarkers followed by elastography using specialized imaging modalities. This sequential screening approach accurately identifies both high- and low-risk patients and is cost-effective when applied to at-risk populations. In conclusion, screening for advanced nonalcoholic fatty liver disease in the primary care setting is a crucial part of identifying high-risk patients who may benefit from aggressive intervention while avoiding overtreatment of patients at low risk of liver-related complications.
Collapse
Affiliation(s)
- Esteban Urias
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| | - Vincent L Chen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan
| |
Collapse
|
2
|
Understanding NAFLD: From Case Identification to Interventions, Outcomes, and Future Perspectives. Nutrients 2023; 15:nu15030687. [PMID: 36771394 PMCID: PMC9921401 DOI: 10.3390/nu15030687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 01/25/2023] [Accepted: 01/28/2023] [Indexed: 02/01/2023] Open
Abstract
While non-alcoholic fatty liver disease (NAFLD) is a prevalent and frequent cause of liver-related morbidity and mortality, it is also strongly associated with cardiovascular disease-related morbidity and mortality, likely driven by its associations with insulin resistance and other manifestations of metabolic dysregulation. However, few satisfactory pharmacological treatments are available for NAFLD due in part to its complex pathophysiology, and challenges remain in stratifying individual patient's risk for liver and cardiovascular disease related outcomes. In this review, we describe the development and progression of NAFLD, including its pathophysiology and outcomes. We also describe different tools for identifying patients with NAFLD who are most at risk of liver-related and cardiovascular-related complications, as well as current and emerging treatment options, and future directions for research.
Collapse
|
3
|
Non-alcoholic fatty liver disease in adults 2021: A clinical practice guideline of the Italian Association for the Study of the Liver (AISF), the Italian Society of Diabetology (SID) and the Italian Society of Obesity (SIO). Eat Weight Disord 2022; 27:1603-1619. [PMID: 34914079 PMCID: PMC9123074 DOI: 10.1007/s40519-021-01287-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 07/29/2021] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a common and emerging liver disease in adults, paralleling the epidemic of obesity and diabetes and leading to worrisome events (hepatocellular carcinoma and end-stage liver disease). In the past years, mounting evidence added insights about epidemiology, natural history, diagnosis and lifestyle-based or drug treatment of NAFLD. In this rapidly evolving scenario, members of the Associazione Italiana per lo Studio del Fegato, the Società Italiana di Diabetologia and the Società Italiana dell'Obesità reviewed current knowledge on NAFLD. The quality of the published evidence is graded, and practical recommendations are made following the rules and the methodology suggested in Italy by the Centro Nazionale per l'Eccellenza delle cure and Istituto Superiore di Sanità. Whenever possible, recommendations are placed within the context the Italian Healthcare system, with reference to specific experience and local diagnostic and management resources.Level of evidence Level of evidence of recommendations for each PICO question were reported according to available evidence.
Collapse
|
4
|
Sebastiani G, Patel K, Ratziu V, Feld JJ, Neuschwander-Tetri BA, Pinzani M, Petta S, Berzigotti A, Metrakos P, Shoukry N, Brunt EM, Tang A, Cobbold JF, Ekoe JM, Seto K, Ghali P, Chevalier S, Anstee QM, Watson H, Bajaj H, Stone J, Swain MG, Ramji A. Current considerations for clinical management and care of non-alcoholic fatty liver disease: Insights from the 1st International Workshop of the Canadian NASH Network (CanNASH). CANADIAN LIVER JOURNAL 2022; 5:61-90. [PMID: 35990786 PMCID: PMC9231423 DOI: 10.3138/canlivj-2021-0030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 09/07/2021] [Indexed: 08/30/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) affects approximately 8 million Canadians. NAFLD refers to a disease spectrum ranging from bland steatosis to non-alcoholic steatohepatitis (NASH). Nearly 25% of patients with NAFLD develop NASH, which can progress to liver cirrhosis and related end-stage complications. Type 2 diabetes and obesity represent the main risk factors for the disease. The Canadian NASH Network is a national collaborative organization of health care professionals and researchers with a primary interest in enhancing understanding, care, education, and research around NAFLD, with a vision of best practices for this disease state. At the 1st International Workshop of the CanNASH network in April 2021, a joint event with the single topic conference of the Canadian Association for the Study of the Liver (CASL), clinicians, epidemiologists, basic scientists, and community members came together to share their work under the theme of NASH. This symposium also marked the initiation of collaborations between Canadian and other key opinion leaders in the field representative of international liver associations. The main objective is to develop a policy framework that outlines specific targets, suggested activities, and evidence-based best practices to guide provincial, territorial, and federal organizations in developing multidisciplinary models of care and strategies to address this epidemic.
Collapse
Affiliation(s)
- Giada Sebastiani
- Division of Gastroenterology and Hepatology, Royal Victoria Hospital, McGill University Health Centre, Montréal, Québec, Canada
| | - Keyur Patel
- Toronto Centre for Liver Disease, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
| | - Vlad Ratziu
- Assistance Publique-Hôpitaux de Paris, Hôpital Pitié Salpêtrière, Sorbonne University, Paris, France
| | - Jordan J Feld
- Toronto Centre for Liver Disease, Toronto General Hospital, University of Toronto, Toronto, Ontario, Canada
| | | | - Massimo Pinzani
- UCL Institute for Liver and Digestive Health, Division of Medicine - Royal Free Hospital, London, UK
| | - Salvatore Petta
- Section of Gastroenterology and Hepatology, PROMISE, Università di Palermo, Palermo, Italy
| | - Annalisa Berzigotti
- Hepatology, University Clinic for Visceral Surgery and Medicine, Inselspital, University Hospital of Bern, University of Bern, Switzerland
| | - Peter Metrakos
- Cancer Research Program, McGill University Health Centre Research Institute, Montréal, Québec, Canada
| | - Naglaa Shoukry
- Centre de Recherche du Centre hospitalier de l'Université de Montréal, Montréal, Québec, Canada
| | | | - An Tang
- Department of Radiology, Centre Hospitalier de l'Université de Montréal (CHUM), Québec, Canada
| | - Jeremy F Cobbold
- Department of Gastroenterology, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Jean-Marie Ekoe
- Montreal Institute for Clinical Research, Division of Endocrinology and Department of Nutrition, Université de Montréal, Montréal, Québec, Canada
| | - Karen Seto
- Canadian Liver Foundation, Markham, Ontario, Canada
| | - Peter Ghali
- University of Florida, Gainesville, Florida, USA
| | | | - Quentin M Anstee
- Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | | | - Harpreet Bajaj
- LMC Diabetes and Endocrinology, Brampton, Ontario, Canada
| | - James Stone
- Libin Cardiovascular Institute, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Mark G Swain
- Calgary Liver Unit, Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Alnoor Ramji
- Division of Gastroenterology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| |
Collapse
|
5
|
Non-alcoholic fatty liver disease in adults 2021: A clinical practice guideline of the Italian Association for the Study of the Liver (AISF), the Italian Society of Diabetology (SID) and the Italian Society of Obesity (SIO). Dig Liver Dis 2022; 54:170-182. [PMID: 34924319 DOI: 10.1016/j.dld.2021.04.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/22/2021] [Accepted: 04/21/2021] [Indexed: 12/11/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a common and emerging liver disease in adults, paralleling the epidemic of obesity and diabetes, and leading to worrisome events (hepatocellular carcinoma and end-stage liver disease). In the last years, mounting evidence added insights about epidemiology, natural history, diagnosis and lifestyle-based or drug treatment of NAFLD. In this rapidly evolving scenario, members of the Associazione Italiana per lo Studio del Fegato (AISF), the Società Italiana di Diabetologia (SID) and the Società Italiana dell'Obesità (SIO) reviewed current knowledge on NAFLD. The quality of the published evidence is graded, and practical recommendations are made following the rules and the methodology suggested in Italy by the Centro Nazionale per l'Eccellenza delle cure (CNEC) and Istituto Superiore di Sanità (ISS). Whenever possible, recommendations are placed within the context the Italian Healthcare system, with reference to specific experience and local diagnostic and management resources. Level of evidence: Level of evidence of recommendations for each PICO question were reported according to available evidence.
Collapse
|
6
|
Segura-Azuara NDLÁ, Varela-Chinchilla CD, Trinidad-Calderón PA. MAFLD/NAFLD Biopsy-Free Scoring Systems for Hepatic Steatosis, NASH, and Fibrosis Diagnosis. Front Med (Lausanne) 2022; 8:774079. [PMID: 35096868 PMCID: PMC8792949 DOI: 10.3389/fmed.2021.774079] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 12/10/2021] [Indexed: 12/12/2022] Open
Abstract
Metabolic dysfunction-associated fatty liver disease (MAFLD), formerly known as nonalcoholic fatty liver disease, is the most prevalent liver disorder worldwide. Historically, its diagnosis required biopsy, even though the procedure has a variable degree of error. Therefore, new non-invasive strategies are needed. Consequently, this article presents a thorough review of biopsy-free scoring systems proposed for the diagnosis of MAFLD. Similarly, it compares the severity of the disease, ranging from hepatic steatosis (HS) and nonalcoholic steatohepatitis (NASH) to fibrosis, by contrasting the corresponding serum markers, clinical associations, and performance metrics of these biopsy-free scoring systems. In this regard, defining MAFLD in conjunction with non-invasive tests can accurately identify patients with fatty liver at risk of fibrosis and its complications. Nonetheless, several biopsy-free scoring systems have been assessed only in certain cohorts; thus, further validation studies in different populations are required, with adjustment for variables, such as body mass index (BMI), clinical settings, concomitant diseases, and ethnic backgrounds. Hence, comprehensive studies on the effects of age, morbid obesity, and prevalence of MAFLD and advanced fibrosis in the target population are required. Nevertheless, the current clinical practice is urged to incorporate biopsy-free scoring systems that demonstrate adequate performance metrics for the accurate detection of patients with MAFLD and underlying conditions or those with contraindications of biopsy.
Collapse
|
7
|
Marchesini G, Bugianesi E, Burra P, Marra F, Miele L, Alisi A, Vajro P, Masarone M, Petta S, Persico M, Svegliati-Baroni G, Valenti L, Federici M, Purrello F, Sasso FC, Targher G, Busetto L, Petroni ML, Santini F, Cammà C, Colli A. Non-alcoholic fatty liver disease in adults 2021: A clinical practice guideline of the Italian Association for the Study of the Liver (AISF), the Italian Society of Diabetology (SID) and the Italian Society of Obesity (SIO). Nutr Metab Cardiovasc Dis 2022; 32:1-16. [PMID: 34924246 DOI: 10.1016/j.numecd.2021.04.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 04/28/2021] [Indexed: 02/06/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a common and emerging liver disease in adults, paralleling the epidemic of obesity and diabetes, and leading to worrisome events (hepatocellular carcinoma and end-stage liver disease). In the last years, mounting evidence added insights about epidemiology, natural history, diagnosis and lifestyle-based or drug treatment of NAFLD. In this rapidly evolving scenario, members of the Associazione Italiana per lo Studio del Fegato (AISF), the Società Italiana di Diabetologia (SID) and the Società Italiana dell'Obesità (SIO) reviewed current knowledge on NAFLD. The quality of the published evidence is graded, and practical recommendations are made following the rules and the methodology suggested in Italy by the Centro Nazionale per l'Eccellenza delle cure (CNEC) and Istituto Superiore di Sanità (ISS). Whenever possible, recommendations are placed within the context the Italian Healthcare system, with reference to specific experience and local diagnostic and management resources. Level of evidence: Level of evidence of recommendations for each PICO question were reported according to available evidence.
Collapse
|
8
|
Mowry CJ, Alonso C, Iruarrizaga-Lejarreta M, Ortiz P, Levitsky J, Rinella M. Utility of Metabolomic Biomarkers to Identify Nonalcoholic Fatty Liver Disease in Liver Transplant Recipients. Transplant Direct 2021; 7:e784. [PMID: 34778544 PMCID: PMC8580200 DOI: 10.1097/txd.0000000000001227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 08/06/2021] [Indexed: 11/25/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a rising indication for liver transplantation (LT). Identification of NAFLD recurrence and those at risk for more progressive disease after LT remains elusive as the diagnosis requires biopsy, which is invasive and impractical for serial monitoring. We therefore aimed to identify metabolites in the blood associated with recurrent NAFLD that could potentially be used for detection and monitoring.
Collapse
Affiliation(s)
| | | | | | - Pablo Ortiz
- OWL Metabolomics, Bizkaia Technology Park, Derio, Spain
| | - Josh Levitsky
- Division of Gastroenterology and Hepatology, Northwestern University the Feinberg School of Medicine, Chicago, IL
| | - Mary Rinella
- Division of Gastroenterology and Hepatology, Northwestern University the Feinberg School of Medicine, Chicago, IL
| |
Collapse
|
9
|
EASL Clinical Practice Guidelines on non-invasive tests for evaluation of liver disease severity and prognosis - 2021 update. J Hepatol 2021; 75:659-689. [PMID: 34166721 DOI: 10.1016/j.jhep.2021.05.025] [Citation(s) in RCA: 671] [Impact Index Per Article: 223.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 02/07/2023]
Abstract
Non-invasive tests are increasingly being used to improve the diagnosis and prognostication of chronic liver diseases across aetiologies. Herein, we provide the latest update to the EASL Clinical Practice Guidelines on the use of non-invasive tests for the evaluation of liver disease severity and prognosis, focusing on the topics for which relevant evidence has been published in the last 5 years.
Collapse
|
10
|
Abstract
The clinical phenotypes of nonalcoholic fatty liver disease (NAFLD) encompass from simple steatosis to nonalcoholic steatohepatitis (NASH) with varying degrees of fibrosis or cirrhosis. Liver biopsy has been the standard to diagnose NASH. However, there has been strong need for precise and accurate noninvasive tests because of invasiveness and sampling variability of biopsy. Metabolomics has drawn attention as a promising diagnostic methodology in the field of NAFLD, particularly to unravel metabolic alterations which plays relevant roles in the progression of NASH. There have been numerous metabolomics researches to find new biomarker of NASH in the last decade, fueled by the recent advances in the metabolomics methodology. This review briefly covers recent research advances on the lipidomics, amino acids and bile acid metabolomics regarding continuing attempts to discover relevant biomarkers for NASH.
Collapse
Affiliation(s)
- Hwi Young Kim
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Korea
| |
Collapse
|
11
|
Muzurović E, Mikhailidis DP, Mantzoros C. Non-alcoholic fatty liver disease, insulin resistance, metabolic syndrome and their association with vascular risk. Metabolism 2021; 119:154770. [PMID: 33864798 DOI: 10.1016/j.metabol.2021.154770] [Citation(s) in RCA: 98] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 03/25/2021] [Accepted: 03/27/2021] [Indexed: 02/07/2023]
Abstract
The prevalence of non-alcoholic fatty liver disease (NAFLD), one of the most common liver diseases, is rising. About 25% of adults worldwide are probably affected by NAFLD. Insulin resistance (IR) and fat accumulation in the liver are strongly related. The association between NAFLD, metabolic syndrome (MetS) and IR is established, but an independent impact of NAFLD on vascular risk and progression of cardiovascular (CV) disease (CVD) still needs to be confirmed. This narrative review considers the evidence regarding the link between NAFLD, IR and CVD risk. There is strong evidence for a "concomitantly rising incidence" of NAFLD, IR, MetS and CVD but there is no definitive evidence regarding whether NAFLD is, or is not, an independent and significant risk factor the development of CVD. There are also considerations that type 2 diabetes mellitus (T2DM) may be a common link between NAFLD/non-alcoholic steatohepatitis (NASH) and CVD. NAFLD may be associated with widespread abnormal peri-organ or intra-organ fat (APIFat) deposition (e.g. epicardial adipose tissue) which may further contribute to CV risk. It is clear that NAFLD patients have a greater CV risk (independent or not) which needs to be addressed in clinical practice.
Collapse
Affiliation(s)
- Emir Muzurović
- Department of Internal Medicine, Endocrinology Section, Clinical Centre of Montenegro, Ljubljanska bb, 81000 Podgorica, Montenegro; Faculty of Medicine, University of Montenegro, Kruševac bb, 81000 Podgorica, Montenegro.
| | - Dimitri P Mikhailidis
- Department of Clinical Biochemistry, Royal Free Hospital Campus, University College London Medical School, University College London (UCL), Pond Street, London NW3 2QG, UK; Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, United Arab Emirates
| | - Christos Mantzoros
- Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA; Section of Endocrinology, Boston VA Healthcare System, Harvard Medical School, Boston, MA 02115, USA
| |
Collapse
|
12
|
Koc ÖM, Robaeys G, Topal H, Bielen R, Busschots D, Fevery J, Koek GH, Nevens F. Outcome in Caucasian patients with hepatitis B e antigen negative chronic infection: A long-term observational cohort study. J Med Virol 2020; 92:3373-3380. [PMID: 32343427 PMCID: PMC7687269 DOI: 10.1002/jmv.25950] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 04/20/2020] [Accepted: 04/23/2020] [Indexed: 12/17/2022]
Abstract
Sensitive polymerase chain reaction assays to measure hepatitis B virus (HBV) DNA became only available the last decade. Hence, the long-term outcome of Caucasian patients in Western Europe with hepatitis B e antigen (HBeAg)-negative chronic infection, especially with a baseline HBV DNA level ⩾2000 IU/mL, is still unclear. Out of a cohort of 1936 chronic HBV patients, 413 Caucasian individuals were identified with HBeAg-negative chronic infection, defined as persistently normal alanine aminotransferase (ALT) levels and HBV DNA levels <20 000 IU/mL. During a mean follow-up of 12 years, 366 (88.6%) maintained an HBeAg-negative chronic infection status, whereas 25 (6.1%) developed chronic active hepatitis (CAH). In total, Nine of these 25 CAH cases were related to immunosuppression. In total, 22 (5.3%) individuals had ALT > 2 × upper limit of normal due to non-HBV-related causes. The cumulative probability of spontaneously developing CAH after 10 years was almost exclusively seen in patients with baseline HBV DNA level ⩾2000 IU/mL (11.7% vs 1.2%; P < .001). Advanced liver disease developed significantly more in patients with baseline HBV DNA level ⩾2000 IU/mL (5.2% vs 1.5%; P = .018) and occurred especially in patients with obesity (16.7% vs 4.2%; P = .049). The incidence of hepatocellular carcinoma was 0.0%. Caucasian patients with HBeAg-negative chronic infection and baseline HBV DNA level <2000 IU/mL have an excellent long-term prognosis in the absence of immunosuppressive therapy. However, patients with baseline HBV DNA level ⩾2000 IU/mL are at risk to develop advanced liver disease.
Collapse
Affiliation(s)
- Özgür M. Koc
- Department of Gastroenterology and HepatologyZiekenhuis Oost‐LimburgGenkBelgium
- Faculty of Medicine and Life SciencesHasselt UniversityHasseltBelgium
- Department of Medical Microbiology, Medical CentreMaastricht UniversityMaastrichtThe Netherlands
- School of Nutrition and Translational Research in Metabolism (NUTRIM)Maastricht UniversityMaastrichtThe Netherlands
| | - Geert Robaeys
- Department of Gastroenterology and HepatologyZiekenhuis Oost‐LimburgGenkBelgium
- Faculty of Medicine and Life SciencesHasselt UniversityHasseltBelgium
- Department of Gastroenterology and HepatologyUniversity Hospitals KU LeuvenLeuvenBelgium
| | - Halit Topal
- Department of Abdominal SurgeryUniversity Hospitals KU LeuvenLeuvenBelgium
| | - Rob Bielen
- Department of Gastroenterology and HepatologyZiekenhuis Oost‐LimburgGenkBelgium
- Faculty of Medicine and Life SciencesHasselt UniversityHasseltBelgium
| | - Dana Busschots
- Department of Gastroenterology and HepatologyZiekenhuis Oost‐LimburgGenkBelgium
- Faculty of Medicine and Life SciencesHasselt UniversityHasseltBelgium
| | - Johan Fevery
- Department of Gastroenterology and HepatologyUniversity Hospitals KU LeuvenLeuvenBelgium
| | - Ger H. Koek
- School of Nutrition and Translational Research in Metabolism (NUTRIM)Maastricht UniversityMaastrichtThe Netherlands
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Medical CentreMaastricht UniversityMaastrichtThe Netherlands
- Department of Visceral Surgery and TransplantationUniversity Hospital of the RWTHAachenGermany
| | - Frederik Nevens
- Department of Gastroenterology and HepatologyUniversity Hospitals KU LeuvenLeuvenBelgium
| |
Collapse
|
13
|
Mosca A, Panera N, Crudele A, Alisi A. Noninvasive diagnostic tools for pediatric NAFLD: where are we now? Expert Rev Gastroenterol Hepatol 2020; 14:1035-1046. [PMID: 32715793 DOI: 10.1080/17474124.2020.1801413] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Nonalcoholic fatty liver disease (NAFLD) is a leading cause of liver disease in the pediatric population. It is a significant liver complication of obesity that also prominently affects children. Over the past decade, several noninvasive methods have been investigated for replacing liver biopsy to identify which children with NAFLD have nonalcoholic steatohepatitis (NASH) and fibrosis. These methods that aim to differentiate the type and extent of liver damage are based on two main different methodologies: a 'biological' approach centered on the quantification of circulating biomarkers; and a 'physical' approach established by analyzing different imaging data. AREAS COVERED In this review, we illustrate the state of the art and recent discoveries on noninvasive methods for the diagnosis of NAFLD, NASH, and advanced fibrosis. EXPERT OPINION Currently, noninvasive tests cannot diagnose NASH or determine the degree of fibrosis. However, several lines of evidence have suggested that if these tests are used in a complementary way with other laboratory tests and imaging they have the potential to be used to monitor progression of disease and response to therapy in pediatric NAFLD. Future scientific research will focus on combining these methods with multiple potential predictors of genetic susceptibility.
Collapse
Affiliation(s)
- Antonella Mosca
- Hepatology Gastroenterology and Nutrition, Bambino Gesù Children's Hospital , Rome, Italy
| | - Nadia Panera
- Research Unit of Molecular Genetics of Complex Phenotypes, Bambino Gesù Children's Hospital, IRCCS , Rome, Italy
| | - Annalisa Crudele
- Research Unit of Molecular Genetics of Complex Phenotypes, Bambino Gesù Children's Hospital, IRCCS , Rome, Italy
| | - Anna Alisi
- Research Unit of Molecular Genetics of Complex Phenotypes, Bambino Gesù Children's Hospital, IRCCS , Rome, Italy
| |
Collapse
|
14
|
Adams LA, Chan WK. Noninvasive Tests in the Assessment of NASH and NAFLD Fibrosis: Now and Into the Future. Semin Liver Dis 2020; 40:331-338. [PMID: 32526784 DOI: 10.1055/s-0040-1713006] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Noninvasive serum and imaging methods offer accessible, accurate, and safe assessment of fibrosis severity in nonalcoholic fatty liver disease. In contrast, current serum and imaging methods for the prediction of nonalcoholic steatohepatitis are not sufficiently accurate for routine clinical use. Serum fibrosis markers that incorporate direct measures of fibrogenesis (for example, hyaluronic acid) or fibrinolysis are generally more accurate than biomarkers not incorporating direct measures of fibrogenesis. Elastography methods are more accurate than serum markers for fibrosis assessment and particularly for the determination of cirrhosis, but have a significant failure and/or unreliability rate in obese individuals. To overcome this, combining serum and elastography methods in a sequential manner minimizes indeterminate results and maintains accuracy. The accuracy of current noninvasive methods for monitoring fibrosis response to treatment are limited; however, new tools derived from "omic" methodologies offer promise for the future.
Collapse
Affiliation(s)
- Leon A Adams
- Medical School, Faculty of Medicine and Health Sciences, The University of Western Australia, Nedlands, Western Australia, Australia.,Department of Hepatology, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
| | - Wah-Kheong Chan
- Department of Medicine, Gastroenterology and Hepatology Unit, University of Malaysia, Kuala Lumpur, Malaysia
| |
Collapse
|
15
|
Long MT, Gandhi S, Loomba R. Advances in non-invasive biomarkers for the diagnosis and monitoring of non-alcoholic fatty liver disease. Metabolism 2020; 111S:154259. [PMID: 32387227 PMCID: PMC7529729 DOI: 10.1016/j.metabol.2020.154259] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/29/2020] [Accepted: 05/01/2020] [Indexed: 12/11/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is now the most common chronic liver disease in the United States, affecting approximately 1 out of every 4 Americans. NAFLD is a spectrum of disorders including simple steatosis, characterized by the presence of hepatic steatosis with minimal inflammation, and nonalcoholic steatohepatitis (NASH), characterized by the presence of hepatic steatosis with lobular inflammation, ballooning with or without peri-sinusoidal fibrosis. NASH may lead to progressive fibrosis, and therefore, Individuals with NASH and, in particular, hepatic fibrosis are at increased risk for both liver- and cardiovascular-related outcomes compared to those with steatosis alone. New treatments for NASH and hepatic fibrosis are emerging, so now, more than ever, it is important to identify individuals with more advanced disease who may be candidates for therapy. Noninvasive methods to accurately diagnosis, risk stratify, and monitor both NASH and fibrosis are critically needed. Moreover, since clinically relevant outcomes, such as developing end stage liver disease or liver cancer, take many years to develop, reliable surrogate markers of outcome measures are needed to identify and evaluate potential therapies. In this review, we discuss methods to noninvasively diagnosis and monitor both NASH and fibrosis.
Collapse
Affiliation(s)
- Michelle T Long
- Section of Gastroenterology, Boston Medical Center, Boston University School of Medicine, Boston, MA, United States of America.
| | - Sanil Gandhi
- Boston University, Boston, MA, United States of America
| | - Rohit Loomba
- Division of Gastroenterology, Department of Medicine, University of California at San Diego, La Jolla, CA, United States of America; NAFLD Research Center, University of California at San Diego, La Jolla, CA, United States of America; Division of Epidemiology, Department of Family and Preventive, University of California at San Diego, La Jolla, CA, United States of America.
| |
Collapse
|
16
|
Tincopa MA. Diagnostic and interventional circulating biomarkers in nonalcoholic steatohepatitis. Endocrinol Diabetes Metab 2020; 3:e00177. [PMID: 33102798 PMCID: PMC7576258 DOI: 10.1002/edm2.177] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 06/17/2020] [Accepted: 07/18/2020] [Indexed: 12/17/2022] Open
Abstract
INTRODUCTION In the setting of the obesity epidemic, nonalcoholic fatty liver disease (NAFLD) has become one of the most prevalent forms of chronic liver disease worldwide. Approximately 25% of adults globally have NAFLD which includes those with NAFL, or simple steatosis, and individuals with nonalcoholic steatohepatitis (NASH) where inflammation, hepatocyte injury and potentially hepatic fibrosis are found in conjunction with steatosis. Individuals with NASH, particularly those with hepatic fibrosis, have higher rates of liver-related and overall mortality, making this distinction of significant clinical importance. One of the core challenges in current clinical practice is identifying this subset of individuals with NASH without the use of liver biopsy, the gold standard for both diagnostics and staging disease severity. Identifying noninvasive biomarkers, an accurately measured and reproducible parameter, would aide in identifying patients eligible for NASH pharmacotherapy clinical trials and to help tailor intensity of monitoring required. METHODS RESULTS AND CONCLUSIONS In this review, we highlight both the currently available and novel diagnostic and interventional circulating biomarkers under investigation for NASH, underscoring their accuracy and limitations relevant to our patient population and current clinical practice.
Collapse
Affiliation(s)
- Monica A. Tincopa
- Division of Gastroenterology and HepatologyDepartment of Internal MedicineUniversity of MichiganAnn ArborMichiganUSA
| |
Collapse
|
17
|
Rosato V, Masarone M, Aglitti A, Persico M. The diagnostic conundrum in non-alcoholic fatty liver disease. EXPLORATION OF MEDICINE 2020. [DOI: 10.37349/emed.2020.00018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become the most common liver alteration worldwide. It encompasses a spectrum of disorders that range from simple steatosis to a progressive form, defined non-alcoholic steatohepatitis (NASH), that can lead to advanced fibrosis and eventually cirrhosis and hepatocellular carcinoma. On liver histology, NASH is characterized by the concomitant presence of significant fat accumulation and inflammatory reaction with hepatocellular injury. Until now, liver biopsy is still required to differentiate simple steatosis from NASH and evaluate the degree of liver fibrosis. Unfortunately, this technique has well-known limitations, including invasiveness and expensiveness. Moreover, it may be biased by sampling error and intra- or inter-observed variability. Furthermore, due to the increasing prevalence of NAFLD worldwide, to program a systematic screening with liver biopsy is not imaginable. In recent years, different techniques were developed and validated with the aim of non-invasively identifying NASH and assess liver fibrosis degrees. The non-invasive tests range from simple blood-tests analyses to composite scores and complex imaging techniques. Nevertheless, even if they could represent cost-effective strategies for diagnosing NASH, advanced fibrosis and cirrhosis, their accuracy and consequent usefulness are to be discussed. With this aim, in this review the authors summarize the current state of non-invasive assessment of NAFLD. In particular, in addition to the well-established tests, the authors describe the future perspectives in this field, reporting the latest tests based on OMICS, gut-miocrobioma and micro-RNAs. Finally, the authors provide an accurate assessment of how these non-invasive tools perform in clinical practice depending on the clinical context, with the aim of giving the clinicians a useful tool to try to resolve the diagnostic conundrum of NAFLD.
Collapse
Affiliation(s)
- Valerio Rosato
- Internal Medicine and Hepatology Unit, Department of Medicine, Surgery and Odontostomatology “Scuola Medica Salernitana”- University of Salerno, Street Salvador Allende, 43, Fisciano, 84084 Campania, Italy
| | - Mario Masarone
- Internal Medicine and Hepatology Unit, Department of Medicine, Surgery and Odontostomatology “Scuola Medica Salernitana”- University of Salerno, Street Salvador Allende, 43, Fisciano, 84084 Campania, Italy
| | - Andrea Aglitti
- Internal Medicine and Hepatology Unit, Department of Medicine, Surgery and Odontostomatology “Scuola Medica Salernitana”- University of Salerno, Street Salvador Allende, 43, Fisciano, 84084 Campania, Italy
| | - Marcello Persico
- Internal Medicine and Hepatology Unit, Department of Medicine, Surgery and Odontostomatology “Scuola Medica Salernitana”- University of Salerno, Street Salvador Allende, 43, Fisciano, 84084 Campania, Italy
| |
Collapse
|
18
|
Vali Y, Lee J, Boursier J, Spijker R, Löffler J, Verheij J, Brosnan MJ, Böcskei Z, Anstee QM, Bossuyt PM, Zafarmand MH, Levick C, Duffin K, Hyde C, Bauer T, Bedossa P, Leeming D, Daly A, Hanf R, Ortiz P, Oresic M, Schuppan D, Hanauer G, Chen Y, Shumbayawonda E, Bjerring PN, Zwinderman K. Enhanced liver fibrosis test for the non-invasive diagnosis of fibrosis in patients with NAFLD: A systematic review and meta-analysis. J Hepatol 2020; 73:252-262. [PMID: 32275982 DOI: 10.1016/j.jhep.2020.03.036] [Citation(s) in RCA: 165] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 03/18/2020] [Accepted: 03/20/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS The enhanced liver fibrosis (ELF) test has been proposed for the non-invasive assessment of advanced fibrosis in patients with non-alcoholic fatty liver disease (NAFLD). We performed a systematic review to estimate the accuracy of this test against biopsy. METHODS In this systematic review, we searched MEDLINE, Embase, Web of Science and the Cochrane Library for studies that included patients with NAFLD and that used both liver biopsy (as the reference standard) and the ELF test. Two authors independently screened the references, extracted the data and assessed the quality of included studies. Due to the variation in reported thresholds, we used a multiple thresholds random effects model for meta-analysis (diagmeta R-package). RESULTS The meta-analysis of 11 studies reporting advanced fibrosis and 5 studies reporting significant fibrosis showed that the ELF test had a sensitivity of >0.90 for excluding fibrosis at a threshold of 7.7. However, as a diagnostic test at high thresholds, the test only achieved specificity and positive predictive value >0.80 in very high prevalence settings (>50%). To achieve a specificity of 0.90 for advanced and significant fibrosis, thresholds of 10.18 (sensitivity: 0.57) and 9.86 (sensitivity: 0.55) were required, respectively. CONCLUSION The ELF test showed high sensitivity but limited specificity to exclude advanced and significant fibrosis at low cut-offs. The diagnostic performance of the test at higher thresholds was found to be more limited in low-prevalence settings. We conclude that clinicians should carefully consider the likely disease prevalence in their practice setting and adopt suitable test thresholds to achieve the desired performance. LAY SUMMARY The enhanced liver fibrosis test has been suggested as a non-invasive blood test to aid the diagnosis of severe liver fibrosis in patients with non-alcoholic fatty liver disease (NAFLD). Our study results showed that the test has a high negative predictive value, especially in populations with low disease prevalence (likely encountered in primary care); so, it can exclude advanced fibrosis in patients with NAFLD. However, when prevalence is low, the positive predictive value of the enhanced liver fibrosis test is low, suggesting that additional strategies may be needed to make a positive diagnosis in such settings.
Collapse
Affiliation(s)
- Yasaman Vali
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, University of Amsterdam, The Netherlands.
| | - Jenny Lee
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, University of Amsterdam, The Netherlands
| | - Jérôme Boursier
- Hepato-Gastroenterology Department, Angers University Hospital, Angers, France; HIFIH Laboratory, UPRES EA3859, Angers University, Angers, France
| | - René Spijker
- Medical Library AMC, Amsterdam, the Netherlands; Cochrane Netherlands, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | | | - Joanne Verheij
- Department of Pathology, Academic Medical Center, Amsterdam, The Netherlands
| | - M Julia Brosnan
- Internal Medicine Research Unit, Pfizer Inc, Cambridge, MA, USA
| | - Zsolt Böcskei
- Sanofi R&D, Translational Sciences Unit, Chilly Mazarin, France
| | - Quentin M Anstee
- The Newcastle Liver Research Group, Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK; Newcastle NIHR Biomedical Research Centre, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Patrick M Bossuyt
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, University of Amsterdam, The Netherlands
| | - Mohammad Hadi Zafarmand
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Amsterdam UMC, University of Amsterdam, The Netherlands
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Data on Adiponectin from 2010 to 2020: Therapeutic Target and Prognostic Factor for Liver Diseases? Int J Mol Sci 2020; 21:ijms21155242. [PMID: 32718097 PMCID: PMC7432057 DOI: 10.3390/ijms21155242] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 07/15/2020] [Accepted: 07/22/2020] [Indexed: 12/13/2022] Open
Abstract
The review describes the role of adiponectin in liver diseases in the presence and absence of surgery reported in the literature in the last ten years. The most updated therapeutic strategies based on the regulation of adiponectin including pharmacological and surgical interventions and adiponectin knockout rodents, as well as some of the scientific controversies in this field, are described. Whether adiponectin could be a potential therapeutic target for the treatment of liver diseases and patients submitted to hepatic resection or liver transplantation are discussed. Furthermore, preclinical and clinical data on the mechanism of action of adiponectin in different liver diseases (nonalcoholic fatty disease, alcoholic liver disease, nonalcoholic steatohepatitis, liver cirrhosis and hepatocellular carcinoma) in the absence or presence of surgery are evaluated in order to establish potential targets that might be useful for the treatment of liver disease as well as in the practice of liver surgery associated with the hepatic resections of tumors and liver transplantation.
Collapse
|
20
|
The Role of Noninvasive Tests for Differentiating NASH From NAFL and Diagnosing Advanced Fibrosis Among Patients With NAFLD. J Clin Gastroenterol 2020; 54:107-113. [PMID: 31789757 PMCID: PMC7945957 DOI: 10.1097/mcg.0000000000001284] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Assessing for the presence of non-alcoholic steatohepatitis (NASH) and the presence of advanced fibrosis is vital among patients with non-alcoholic fatty liver disease (NAFLD) as each is predictive of disease outcomes. A liver biopsy is the gold standard method for doing so but is impossible to perform among all patients with NAFLD. Reliable methods for noninvasively detecting for the presence of NASH and advanced fibrosis are thus a pressing need. The search for noninvasive tests has been more successful for advanced fibrosis than for NASH. Clinical prediction models and elastography have acceptable accuracy for ruling out advanced fibrosis; when used together, as in a fibrosis prediction algorithm presented in this review, it can avoid the need for liver biopsy among many patients with NAFLD. Several biomarkers for identifying the presence of NASH have been studied but none are sufficiently accurate or validated. Of those studied, the most promising include CK-18 fragments, lipodomic and metabolomics candidates, and magnetic resonance elastography with proton density fat fraction. However, none are ready for clinical use and ultimately large multicenter prospective cohort studies are needed to validate select novel biomarkers.
Collapse
|
21
|
Accuracy of proton magnetic resonance for diagnosing non-alcoholic steatohepatitis: a meta-analysis. Sci Rep 2019; 9:15002. [PMID: 31628409 PMCID: PMC6802098 DOI: 10.1038/s41598-019-51302-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 09/28/2019] [Indexed: 12/19/2022] Open
Abstract
Liver biopsy is the reference standard test to differentiate between non-alcoholic steatohepatitis (NASH) and simple steatosis (SS) in non-alcoholic fatty liver disease (NAFLD), but noninvasive diagnostics are warranted. The diagnostic accuracy in NASH using MR imaging modality have not yet been clearly identified. This study was assessed the accuracy of magnetic resonance imaging (MRI) method for diagnosing NASH. Data were extracted from research articles obtained after a literature search from multiple electronic databases. Random-effects meta-analyses were performed to obtain overall effect size of the area under the receiver operating characteristic(ROC) curve, sensitivity, specificity, likelihood ratios(LR), diagnostic odds ratio(DOR) of MRI method in detecting histopathologically-proven SS(or non-NASH) and NASH. Seven studies were analyzed 485 patients, which included 207 SS and 278 NASH. The pooled sensitivity was 87.4% (95% CI, 76.4–95.3) and specificity was 74.3% (95% CI, 62.4–84.6). Pooled positive LR was 2.59 (95% CI, 1.96–3.42) and negative LR was 0.17 (95% CI, 0.07–0.38). DOR was 21.57 (95% CI, 7.27–63.99). The area under the curve of summary ROC was 0.89. Our meta-analysis shows that the MRI-based diagnostic methods are valuable additions in detecting NASH.
Collapse
|
22
|
Aksoy GK, Artan R, Aksoy C, Özdem S, Atalay A, Yılmaz A. Role of Soluble Adiponectin Receptor 2 in Non-Alcoholic Fatty Liver Disease in Children. Pediatr Gastroenterol Hepatol Nutr 2019; 22:470-478. [PMID: 31555572 PMCID: PMC6751103 DOI: 10.5223/pghn.2019.22.5.470] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 02/02/2019] [Accepted: 02/07/2019] [Indexed: 12/18/2022] Open
Abstract
PURPOSE The incidence of non-alcoholic fatty liver disease (NAFLD) in children is gradually increasing. The aim of this study was to investigate the use of serum adiponectin and soluble adiponectin receptor 2 (soluble Adipo R2) levels for the diagnosis of fatty liver disease in obese and overweight children. METHODS The study included 51 obese and overweight children between the ages of 6 and 18 years diagnosed with NAFLD using ultrasonography and 20 children without fatty liver disease. Patients whose alanine transaminase level was two times higher than normal (≥80 U/L) were included in the non-alcoholic steatohepatitis (NASH) group. RESULTS NASH was observed in 11 (21.6%) of the patients with NAFLD. The incidence of obesity was higher in patients with NASH (80% and 45%, p=0.021). While the adiponectin levels were similar in patients with NAFLD and those without, they were below the normal level in the whole study group. Adiponectin and soluble Adipo R2 levels of patients with NASH were lower than those in patients without NASH; however, this difference was not statistically significant (p=0.064 and p=0.463). Soluble Adipo R2 levels in obese patients with NAFLD were higher than those in obese children without NAFLD (p<0.001). CONCLUSION Soluble adiponectin receptor 2 level is a noninvasive marker that can be used for the diagnosis of NAFLD in obese children.
Collapse
Affiliation(s)
- Gulsah Kaya Aksoy
- Department of Pediatrics, Akdeniz University Medical Faculty, Antalya, Turkey
| | - Reha Artan
- Department of Pediatric Gastroenterology, Akdeniz University Medical Faculty, Antalya, Turkey
| | - Cihat Aksoy
- Department of Radiology, Akdeniz University Medical Faculty, Antalya, Turkey
| | - Sebahat Özdem
- Department of Biochemistry, Akdeniz University Medical Faculty, Antalya, Turkey
| | - Atike Atalay
- Department of Pediatric Gastroenterology, Akdeniz University Medical Faculty, Antalya, Turkey
| | - Aygen Yılmaz
- Department of Pediatric Gastroenterology, Akdeniz University Medical Faculty, Antalya, Turkey
| |
Collapse
|
23
|
Noninvasive Evaluation of Liver Function in Morbidly Obese Patients. Gastroenterol Res Pract 2019; 2019:4307462. [PMID: 30863439 PMCID: PMC6378040 DOI: 10.1155/2019/4307462] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 12/30/2018] [Indexed: 12/12/2022] Open
Abstract
Background More than half of the obese patients develop nonalcoholic fatty liver disease (NAFLD), which may further progress to nonalcoholic steatohepatitis (NASH) and cirrhosis. The aim of this study was to assess alterations in liver function in obese patients with a noninvasive liver function test. Methods In a prospective cohort study 102 morbidly obese patients undergoing bariatric surgery were evaluated for their liver function. Liver function capacity was determined by the LiMAx® test (enzymatic capacity of cytochrome P450 1A2). Liver biopsy specimens were obtained intraoperatively and classified according to the NAFLD Activity Score (NAS). NASH clinical score was additionally calculated from laboratory and clinical parameters. Results Median liver function capacity was 286 (IQR = 141) μg/kg/h. 27% of patients were histologically categorized as definite NASH, 39% as borderline, and 34% as not NASH. A significant correlation was observed between liver function capacity and NAS (r = −0.492; p < 0.001). The sensitivity and specificity of the LiMAx® test to distinguish between definite NASH and not NASH were 85.2% and 82.9% (AUROC 0.859), respectively. According to the NASH clinical scoring system, 14% were classified as low risk, 31% as intermediate, 26% as high, and 29% as very high risk. Liver function capacity is also significantly correlated with the NASH clinical scoring system (r = −0.411; p < 0.001). Conclusions Obese patients show a diminished liver function capacity, especially those suffering from type 2 diabetes. The liver function capacity correlates with histological and clinical scoring systems. The LiMAx® test may be a valuable tool for noninvasive screening for NASH in obese patients.
Collapse
|
24
|
Portal lymphadenopathy predicts non-alcoholic steatohepatitis and advanced fibrosis in non-alcoholic fatty liver disease. PLoS One 2018; 13:e0207479. [PMID: 30500848 PMCID: PMC6267957 DOI: 10.1371/journal.pone.0207479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 10/31/2018] [Indexed: 01/11/2023] Open
Abstract
Background and aim The progression of non-alcoholic fatty liver disease (NAFLD) to non-alcoholic steatohepatitis (NASH) is believed to be the driver for future development of fibrosis and cirrhosis. Nevertheless, there remains a clear deficit in non-invasive methods for the diagnosis of NASH. The aim of the present study was to evaluate the prevalence of portal lymphadenopathy (PL) in biopsy- proven NAFLD patients and to determine whether PL correlates with NAFLD stage and severity. Methods A retrospective study included biopsy-proven NAFLD patients with up to date (within one year) abdominal imaging by computed tomography (CT) and/or magnetic resonance imaging (MRI). Patients were clustered into three groups based on their NAFLD Activity Score (NAS): NAS1-2 (mild), NAS3-4 (moderate) and NAS≥5 (advanced). We Assessed for association between PL and other clinical and laboratory findings with NAS, NAS components and fibrosis. Results Seventy-five patients with NAFLD and no other competing etiologies for liver diseases or PL were included. The mean age was 50.7±14.84 years with male predominance (N = 47, 62.7%). Twenty-five (33.3%), 37 (49.3%) and 13 (17.3%) patients had mild, moderate and advanced NAS, respectively. PL significantly correlated with advanced NAS ≥ 5 (Fisher’s (F) 9.5, P = 0.009). Correlation was driven mainly by a link to hepatocytes ballooning (F of 5.9, P = 0.043). In addition, PL significantly correlated with portal inflammation (F 4.29, P = 0.038). As for hepatic fibrosis, the F test wasn’t significant, though spearman’s coefficient (SC) was significant (0.277, P = 0.012). On multivariate analysis, PL was identified as a sole predictor of advanced NAS score (Odds ratio of 2.68, P = 0.002). Incorporation of PL into noninvasive fibrosis scores improved their diagnostic yield. Conclusion PL predicts severity of NAFLD. Its presence may serve as a novel radiological marker for NAFLD/NASH differentiation and disease progression.
Collapse
|
25
|
The effect of complex treatment of patients with non-alcoholic steatohepatitis in combination with type 2 diabetes on the course of the inflammatory process: adiponectin and proinflammatory cytokines. Fam Med 2018. [DOI: 10.30841/2307-5112.3.2018.146359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
26
|
Soti S, Corey KE, Lake JE, Erlandson KM. NAFLD and HIV: Do Sex, Race, and Ethnicity Explain HIV-Related Risk? Curr HIV/AIDS Rep 2018; 15:212-222. [PMID: 29671204 PMCID: PMC6003864 DOI: 10.1007/s11904-018-0392-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Here, we review the epidemiology, diagnosis, and management of non-alcoholic fatty liver disease (NAFLD) in the general population, discuss HIV-specific differences in NAFLD pathogenesis, and summarize what is known regarding differences in NAFLD by race/ethnicity and sex. RECENT FINDINGS The reported prevalence of NAFLD among people living with HIV varies by age, body mass index, comorbidity, and method of NAFLD diagnosis, but is generally thought to be greater among HIV-infected compared to HIV-uninfected populations. Minorities and women tend to experience poorer HIV treatment outcomes (Meditz et al. J Infect Dis. 203(4):442-51, 2011; Beer et al. Medicine (Baltimore). 95(13):e 3171, 2016; Gant et al. MMWR Morb Mortal Wkly Rep. 66(40):1065-72, 2017; Millett et al. Lancet. 380(9839):341-8, 2012; Wejnert et al. J Infect Dis. 213(5):776-83, 2016), and are at the greatest risk for significant weight gain with HIV treatment (Erlandson et al. Medicine (Baltimore). 95(46):e 5399, 2016). Thus, women and minorities living with HIV may be at a higher risk of developing NAFLD and progressive liver disease. Disparities in the diagnosis, progression, and prognosis of NAFLD and HIV-associated NAFLD may be, in part, explained by genetic and sex differences; however, data is limited.
Collapse
Affiliation(s)
- Subada Soti
- School of Medicine, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Kathleen E Corey
- Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jordan E Lake
- University of Texas Health Sciences Center, Houston, TX, USA
| | - Kristine M Erlandson
- Department of Medicine, Division of Infectious Diseases, University of Colorado-Anschutz Medical Campus, 12700 E. 19th Avenue, Mail Stop B168, Aurora, CO, 80045, USA.
| |
Collapse
|
27
|
Yoo W, Gjuka D, Stevenson HL, Song X, Shen H, Yoo SY, Wang J, Fallon M, Ioannou GN, Harrison SA, Beretta L. Fatty acids in non-alcoholic steatohepatitis: Focus on pentadecanoic acid. PLoS One 2017; 12:e0189965. [PMID: 29244873 PMCID: PMC5731750 DOI: 10.1371/journal.pone.0189965] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 12/05/2017] [Indexed: 02/07/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common form of liver disease and ranges from isolated steatosis to NASH. To determine whether circulating fatty acids could serve as diagnostic markers of NAFLD severity and whether specific fatty acids could contribute to the pathogenesis of NASH, we analyzed two independent NAFLD patient cohorts and used the methionine- and choline-deficient diet (MCD) NASH mouse model. We identified six fatty acids that could serve as non-invasive markers of NASH in patients with NAFLD. Serum levels of 15:0, 17:0 and 16:1n7t negatively correlated with NAFLD activity scores and hepatocyte ballooning scores, while 18:1n7c serum levels strongly correlated with fibrosis stage and liver inflammation. Serum levels of 15:0 and 17:0 also negatively correlated with fasting glucose and AST, while 16:1n7c and 18:1n7c levels positively correlated with AST and ferritin, respectively. Inclusion of demographic and clinical parameters improved the performance of the fatty acid panels in detecting NASH in NAFLD patients. The panel [15:0, 16:1n7t, 18:1n7c, 22:5n3, age, ferritin and APRI] predicted intermediate or advanced fibrosis in NAFLD patients, with 82% sensitivity at 90% specificity [AUROC = 0.92]. 15:0 and 18:1n7c were further selected for functional studies in vivo. Mice treated with 15:0-supplemented MCD diet showed reduced AST levels and hepatic infiltration of ceroid-laden macrophages compared to MCD-treated mice, suggesting that 15:0 deficiency contributes to liver injury in NASH. In contrast, 18:1n7c-supplemented MCD diet didn’t affect liver pathology. In conclusion, 15:0 may serve as a promising biomarker or therapeutic target in NASH, opening avenues for the integration of diagnosis and treatment.
Collapse
Affiliation(s)
- Wonbeak Yoo
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Donjeta Gjuka
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Heather L. Stevenson
- Department of Pathology, University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Xiaoling Song
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Hong Shen
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Suk Young Yoo
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
| | - Michael Fallon
- Division of Gastroenterology, The University of Texas Health Science Center at Houston, Houston, Texas, United States of America
| | - George N. Ioannou
- Division of Gastroenterology, Veterans Affairs Puget Sound Health Care System and University of Washington, Seattle, Washington, United States of America
| | - Stephen A. Harrison
- Department of Medicine, Brooke Army Medical Center, San Antonio, Texas, United States of America
| | - Laura Beretta
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, United States of America
- * E-mail:
| |
Collapse
|