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Schweber AB, Agarunov E, Brooks C, Hur C, Gonda TA. Prevalence, Incidence, and Risk of Progression of Asymptomatic Pancreatic Cysts in Large Sample Real-world Data. Pancreas 2021; 50:1287-1292. [PMID: 34860813 DOI: 10.1097/mpa.0000000000001918] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
OBJECTIVES Using large-sample, real-world administrative claims data, we evaluated the prevalence of putatively asymptomatic pancreatic cysts, the historical growth in their incident diagnosis, and their risk of malignant progression. METHODS Data were sourced from IBM MarketScan administrative claims databases of more than 200 million patients. Period prevalence was assessed using 700,000 individuals without conditions that predispose to pancreatic cyst. The standardized cumulative incidence was compared with the cross-sectional abdominal imaging rate from 2010-2017. The risk of progression to pancreatic cancer for 14,279 newly diagnosed patients with a cyst was estimated using Kaplan-Meier analysis. RESULTS Standardized prevalence increased exponentially with age and was 1.84% (95% confidence interval, 1.80%-1.87%) for patients older than 45. Standardized incidence nearly doubled from 2010-2017 (6.3 to 11.4 per 10,000), whereas the imaging rate changed from only 8.0% to 9.4%. The cumulative risk of pancreatic cancer at 7 years was 3.0% (95% confidence interval, 2.4%-3.5%), increasing linearly (R2 = 0.991) with an annual progression risk of 0.47%. CONCLUSIONS Using large-sample data, we show a significant burden of asymptomatic pancreatic cysts, with an annual risk of progression to cancer of 0.47% for 7 years. Rapid growth in cyst diagnosis over the last decade far outpaced increases in the imaging rate.
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Affiliation(s)
- Adam B Schweber
- From the Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Irving Medical Center
| | - Emil Agarunov
- Division of Gastroenterology and Hepatology, New York University, New York, NY
| | - Christian Brooks
- Larner College of Medicine, University of Vermont, Burlington, VT
| | - Chin Hur
- From the Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Irving Medical Center
| | - Tamas A Gonda
- From the Department of Medicine, Division of Digestive and Liver Diseases, Columbia University Irving Medical Center
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102
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Lazarus JV, Anstee QM, Hagström H, Cusi K, Cortez-Pinto H, Mark HE, Roden M, Tsochatzis EA, Wong VWS, Younossi ZM, Zelber-Sagi S, Romero-Gómez M, Schattenberg JM. Defining comprehensive models of care for NAFLD. Nat Rev Gastroenterol Hepatol 2021; 18:717-729. [PMID: 34172937 DOI: 10.1038/s41575-021-00477-7] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/01/2021] [Indexed: 02/06/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is now the leading cause of chronic liver disease globally. Despite the increased demand placed on health-care systems, little attention has been given to the design and implementation of efficient and effective models of care for patients with NAFLD. In many health-care settings, no formal pathways exist and, where pathways are in place, they are often not standardized according to good practices. We systematically searched the peer-reviewed literature with the aim of identifying published examples of comprehensive models of care that answered four key questions: what services are provided? Where are they provided? Who is offering them? How are they coordinated and integrated within health-care systems? We identified seven models of care and synthesized the findings into eight recommendations nested within the 'what, where, who and how' of care models. These recommendations, aimed at policy-makers and practitioners designing and implementing models of care, can help to address the increasing need for the provision of good practice care for patients with NAFLD.
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Affiliation(s)
- Jeffrey V Lazarus
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Barcelona, Spain. .,EASL International Liver Foundation, Geneva, Switzerland.
| | - Quentin M Anstee
- Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom.,The Liver Unit & NIHR Biomedical Research Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom
| | | | - Kenneth Cusi
- Division of Endocrinology, Diabetes & Metabolism, Department of Medicine, Veterans Health Administration and University of Florida, Gainesville, FL, United States
| | - Helena Cortez-Pinto
- Clínica Universitária de Gastrenterologia, Laboratório de Nutrição, Faculdade de Medicina, Universidade de Lisboa, Lisbon, Portugal
| | - Henry E Mark
- EASL International Liver Foundation, Geneva, Switzerland
| | - Michael Roden
- Department of Endocrinology and Diabetology, Medical Faculty and University Hospital, Heinrich Heine University, Düsseldorf, Germany.,Institute for Clinical Diabetology, German Diabetes Center (DDZ), Leibniz Center for Diabetes Research at Heinrich-Heine University, Düsseldorf, Germany.,German Center for Diabetes Research, Partner Düsseldorf, Düsseldorf, Germany
| | - Emmanuel A Tsochatzis
- University College London Institute for Liver and Digestive Health, Royal Free Hospital, London, United Kingdom.,Sheila Sherlock Liver Centre, Royal Free Hospital, London, United Kingdom
| | - Vincent Wai-Sun Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, Hong Kong
| | - Zobair M Younossi
- Center for Liver Diseases, Department of Medicine, Inova Fairfax Medical Campus, Falls Church, VA, United States
| | - Shira Zelber-Sagi
- University of Haifa, Faculty of Social Welfare and Health Sciences, School of Public Health, Mount Carmel, Haifa, Israel.,Department of Gastroenterology, Tel-Aviv Medical Centre, Tel-Aviv, Israel
| | - Manuel Romero-Gómez
- UCM Digestive Diseases, CIBEREHD and IBIS, Virgen del Rocío University Hospital, University of Seville, Seville, Spain.
| | - Jörn M Schattenberg
- Metabolic Liver Research Program, I. Department of Medicine, University Medical Centre Mainz, Mainz, Germany.
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103
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Lazarus JV, Kakalou C, Palayew A, Karamanidou C, Maramis C, Natsiavas P, Picchio CA, Villota-Rivas M, Zelber-Sagi S, Carrieri P. A Twitter discourse analysis of negative feelings and stigma related to NAFLD, NASH and obesity. Liver Int 2021; 41:2295-2307. [PMID: 34022107 DOI: 10.1111/liv.14969] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 04/27/2021] [Accepted: 05/18/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND People with non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) are stigmatized, partly since 'non-alcoholic' is in the name, but also because of obesity, which is a common condition in this group. Stigma is pervasive in social media and can contribute to poorer health outcomes. We examine how stigma and negative feelings concerning NAFLD/NASH and obesity manifest on Twitter. METHODS Using a self-developed search terms index, we collected NAFLD/NASH tweets from May to October 2019 (Phase I). Because stigmatizing NAFLD/NASH tweets were limited, Phase II focused on obesity (November-December 2019). Via sentiment analysis, >5000 tweets were annotated as positive, neutral or negative and used to train machine learning-based Natural Language Processing software, applied to 193 747 randomly sampled tweets. All tweets collected were analysed. RESULTS In Phase I, 16 835 tweets for NAFLD and 2376 for NASH were retrieved. Of the annotated NAFLD/NASH tweets, 97/1130 (8.6%) and 63/535 (11.8%), respectively, related to obesity and 13/1130 (1.2%) and 5/535 (0.9%), to stigma; they primarily focused on scientific discourse and unverified information. Of the 193 747 non-annotated obesity tweets (Phase II), the algorithm classified 40.0% as related to obesity, of which 85.2% were negative, 1.0% positive and 13.7% neutral. CONCLUSIONS NAFLD/NASH tweets mostly indicated an unmet information need and showed no clear signs of stigma. However, the negative content of obesity tweets was recurrent. As obesity-related stigma is associated with reduced care engagement and lifestyle modification, the main NAFLD/NASH treatment, stigma-reducing interventions in social media should be included in the liver health agenda.
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Affiliation(s)
- Jeffrey V Lazarus
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Christine Kakalou
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Adam Palayew
- McGill Department of Epidemiology, Biostatistics, and Occupational Health, Montreal, QC, Canada
| | - Christina Karamanidou
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Christos Maramis
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Pantelis Natsiavas
- Institute of Applied Biosciences, Centre for Research & Technology Hellas, Thessaloniki, Greece
| | - Camila A Picchio
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Marcela Villota-Rivas
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Shira Zelber-Sagi
- School of Public Health, University of Haifa, Haifa, Israel.,Department of Gastroenterology, Tel Aviv Medical Center, Tel Aviv, Israel
| | - Patrizia Carrieri
- Aix Marseille Univ, INSERM, IRD, SESSTIM, Sciences Economiques & Sociales de la Santé & Traitement de l'Information Médicale, ISSPAM, Marseille, France
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104
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Ali H, Kazmi M, Choi C, Hashemipour R, Singh I, Pyrsopoulos NT. In-Hospital Outcomes of Patients With Non-Alcoholic Fatty Liver Disease Who Underwent Percutaneous Coronary Intervention: A Nationwide Inpatient Sample Analysis. Cureus 2021; 13:e17338. [PMID: 34430188 PMCID: PMC8378887 DOI: 10.7759/cureus.17338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2021] [Indexed: 11/05/2022] Open
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is prevalent in almost 25% of the Western population and is predicted to become one of the leading causes of end-stage liver disease. There is increasing evidence that NAFLD is a risk factor for cardiovascular disease, specifically for coronary artery disease, via disruption of the metabolism of glucose and lipids in the body, leading to a state of systemic inflammation that promotes atherosclerosis. This study aims to explore outcomes in patients who underwent percutaneous coronary intervention (PCI) with or without placement of drug-eluting stents (DES) to determine whether the concurrent diagnosis of NAFLD led to worse in-hospital outcomes. Methods We used the National Inpatient Sample, Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality 2016 to conduct a cross-sectional study that included all adult patients who underwent PCI with or without placement of DES during hospital admission. Patients with NAFLD were identified and compared to patients without NAFLD. Patients were selected by using ICD-10-CM and ICD-10-PCS codes. Outcomes included mortality, length of stay and total hospital charges, and major adverse cardiac events (MACE). Data on patient demographics, inpatient statistics, and comorbidities were obtained and analyzed using cross-tabulation, Pearson χ2 test, and independent samples t-test. Data were adjusted for confounders using logistic and linear regression. Results Among 429,855 patients who underwent PCI with or without placement of DES, 2,560 patients (0.6%) had a diagnosis of NAFLD. There was no significant difference with regard to mortality and MACE. The NAFLD group had a higher proportion of females, a longer average length of hospital stay, and patients presented at a younger average age. Regarding comorbidities, more patients in the NAFLD group had diabetes mellitus type II, obesity, obstructive sleep apnea (OSA), chronic kidney disease (CKD), and peripheral vascular disease (PVD). Conclusion NAFLD is emerging as a risk factor for cardiovascular disease. Increasing evidence suggests that the disease contributes to systemic atherosclerosis and thus coronary artery disease. We found that among patients who underwent PCI in 2016, those with NAFLD had a longer length of stay, were admitted at a younger age, and had significantly more cardiovascular comorbidities than those without NAFLD. Increasing evidence has shown that advanced liver disease due to NAFLD will continue to place a significant burden on the healthcare system and is, therefore, an area that the medical community should continue to focus on, especially, regarding preventative and therapeutic efforts.
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Affiliation(s)
- Hasan Ali
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Maryam Kazmi
- Internal Medicine, Rutgers University New Jersey Medical School, Newark, USA
| | - Catherine Choi
- Gastroenterology and Hepatology, Rutgers University New Jersey Medical School, Newark, USA
| | - Reza Hashemipour
- Gastroenterology and Hepatalogy, Rutgers University New Jersey Medical School, Newark, USA
| | - Inderjit Singh
- Cardiology, Rutgers University New Jersey Medical School, Newark, USA
| | - Nikolaos T Pyrsopoulos
- Gastroenterology and Hepatology, Rutgers University New Jersey Medical School, Newark, USA
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105
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The Chinese Society of Hepatology position statement on the redefinition of fatty liver disease. J Hepatol 2021; 75:454-461. [PMID: 34019941 DOI: 10.1016/j.jhep.2021.05.003] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 04/28/2021] [Accepted: 05/02/2021] [Indexed: 02/08/2023]
Abstract
Fatty liver disease associated with metabolic dysfunction is of increasing concern in mainland China, the world's most populous country. The incidence of fatty liver disease is highest in China, surpassing the incidence in European countries and the USA. An international consensus panel recently published an influential report recommending a novel definition of fatty liver disease associated with metabolic dysfunction. This recommendation includes a switch in name from non-alcoholic fatty liver disease (NAFLD) to metabolic (dysfunction)-associated fatty liver disease (MAFLD) and adoption of a set of positive criteria for disease diagnosis that are independent of alcohol intake or other liver diseases. Given the unique importance of this proposal, the Chinese Society of Hepatology (CSH) invited leading hepatologists and gastroenterologists representing their respective provinces and cities to reach consensus on alternative definitions for fatty liver disease from a national perspective. The CSH endorses the proposed change from NAFLD to MAFLD (supported by 95.45% of participants). We expect that the new definition will result in substantial improvements in health care for patients and advance disease awareness, public health policy, and political, scientific and funding outcomes for MAFLD in China.
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106
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He W, Fang Y, Wang H, Chan I. Applying Quantitative Approaches in the Use of RWE in Clinical Development and Life-Cycle Management. Stat Biopharm Res 2021. [DOI: 10.1080/19466315.2021.1927827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Weili He
- Global Medical Affairs Statistics, Data and Statistical Sciences, AbbVie, North Chicago, IL
| | - Yixin Fang
- Global Medical Affairs Statistics, Data and Statistical Sciences, AbbVie, North Chicago, IL
| | - Hongwei Wang
- Global Medical Affairs Statistics, Data and Statistical Sciences, AbbVie, North Chicago, IL
| | - Ivan Chan
- Global Biometrics & Data Sciences, Bristol Myers Squibb, Berkeley Heights, NJ
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107
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Hagström H, Adams LA, Allen AM, Byrne CD, Chang Y, Grønbæk H, Ismail M, Jepsen P, Kanwal F, Kramer J, Lazarus JV, Long MT, Loomba R, Newsome PN, Rowe IA, Ryu S, Schattenberg JM, Serper M, Sheron N, Simon TG, Tapper EB, Wild S, Wai-Sun Wong V, Yilmaz Y, Zelber-Sagi S, Åberg F. Administrative Coding in Electronic Health Care Record-Based Research of NAFLD: An Expert Panel Consensus Statement. Hepatology 2021; 74:474-482. [PMID: 33486773 PMCID: PMC8515502 DOI: 10.1002/hep.31726] [Citation(s) in RCA: 98] [Impact Index Per Article: 32.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/11/2020] [Accepted: 01/15/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS Electronic health record (EHR)-based research allows the capture of large amounts of data, which is necessary in NAFLD, where the risk of clinical liver outcomes is generally low. The lack of consensus on which International Classification of Diseases (ICD) codes should be used as exposures and outcomes limits comparability and generalizability of results across studies. We aimed to establish consensus among a panel of experts on ICD codes that could become the reference standard and provide guidance around common methodological issues. APPROACH AND RESULTS Researchers with an interest in EHR-based NAFLD research were invited to collectively define which administrative codes are most appropriate for documenting exposures and outcomes. We used a modified Delphi approach to reach consensus on several commonly encountered methodological challenges in the field. After two rounds of revision, a high level of agreement (>67%) was reached on all items considered. Full consensus was achieved on a comprehensive list of administrative codes to be considered for inclusion and exclusion criteria in defining exposures and outcomes in EHR-based NAFLD research. We also provide suggestions on how to approach commonly encountered methodological issues and identify areas for future research. CONCLUSIONS This expert panel consensus statement can help harmonize and improve generalizability of EHR-based NAFLD research.
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Affiliation(s)
- Hannes Hagström
- Division of Hepatology, Department of Upper GI, Karolinska University Hospital, Stockholm, Sweden
- Clinical Epidemiology Unit, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden
- Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
| | - Leon A Adams
- Medical School, University of Western Australia, Perth Australia
| | - Alina M. Allen
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Christopher D. Byrne
- Nutrition and Metabolism, Faculty of Medicine, University of Southampton, UK
- Southampton National Institute for Health Research Biomedical Research Centre, University Hospital Southampton, Southampton General Hospital, Tremona Road, Southampton, UK
| | - Yoosoo Chang
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Henning Grønbæk
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Mona Ismail
- Division of Gastroenterology, Department of Internal Medicine, King Fahad Hospital of the University, Al-Khobar, Saudi Arabia
- College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Peter Jepsen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Fasiha Kanwal
- Baylor College of Medicine and Michael E. DeBakey VA Medical Center, Houston TX, USA
| | - Jennifer Kramer
- Baylor College of Medicine and Michael E. DeBakey VA Medical Center, Houston TX, USA
| | - Jeffrey V. Lazarus
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Barcelona, Spain
| | - Michelle T. Long
- Department of Medicine, Section of Gastroenterology, Boston University School of Medicine, Boston, MA, USA
| | - Rohit Loomba
- NAFLD Research Center, Division of Gastroenterology and Epidemiology, University of California at San Diego, La Jolla, California, USA
| | - Philip N. Newsome
- National Institute for Health Research Biomedical Research Centre at University Hospitals Birmingham NHS Foundation Trust, University of Birmingham, UK
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, UK
| | - Ian A. Rowe
- Leeds Institute for Medical Research, University of Leeds, UK
| | - Seungho Ryu
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
- Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul, Republic of Korea
| | - Jörn M. Schattenberg
- Metabolic Liver Research Program, I. Department of Medicine, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Marina Serper
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | | | - Tracey G. Simon
- Division of Gastroenterology and Hepatology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, MA, USA
| | - Elliot B. Tapper
- Division of Gastroenterology and Hepatology, University of Michigan, Ann Arbor, USA
| | - Sarah Wild
- Usher Institute, University of Edinburgh, UK
| | - Vincent Wai-Sun Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong
| | - Yusuf Yilmaz
- Liver Research Unit, Institute of Gastroenterology, Marmara University, Turkey
- Department of Gastroenterology, School of Medicine, Marmara University, Istanbul, Turkey
| | | | - Fredrik Åberg
- Transplantation and Liver Surgery Clinic, Helsinki University Hospital, Helsinki, Finland
- University of Helsinki, Helsinki, Finland
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108
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Cross-sectional pilot study to assess primary healthcare workers' knowledge of nonalcoholic fatty liver disease in a marginalized community in Mexico. Sci Rep 2021; 11:12100. [PMID: 34103552 PMCID: PMC8187373 DOI: 10.1038/s41598-021-91199-y] [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: 10/20/2020] [Accepted: 04/13/2021] [Indexed: 11/08/2022] Open
Abstract
The registered incidence of nonalcoholic fatty liver disease (NAFLD) in primary healthcare centers is lower than expected, suggesting a lack of awareness by primary care healthcare professionals. The implementation of educational tools for healthcare workers has been found to increase timely referral and treatment of patients. We aimed to determine healthcare workers' knowledge of NAFLD to identify their educational needs in one marginalized region. We performed a cross-sectional survey of 261 healthcare professionals in Tlapa de Comonfort, Guerrero, Mexico from October 2019 to December 2019. We created a questionnaire that assessed domains most relevant to NAFLD knowledge. Two hundred and forty-six questionnaires were completed. Of the respondents, 38.3% were nurses and 63.4% were women. Most nurses identified NAFLD as a prevalent (89%) and preventable (93%) disease. Hypertension (33%) and obesity (84%) were recognized as risk factors. The associations between NAFLD and cancer, cirrhosis and cardiovascular disease were identified by 53%, 67% and 72% of respondents, respectively. The largest gaps were found in diagnostic workup, therapeutic approach and the current treatments. We identify modifiable knowledge gaps in NAFLD. Educational strategies for primary care workers could enhance the identification of patients with NAFLD and prevent complications.
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109
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Powell EE, Wong VWS, Rinella M. Non-alcoholic fatty liver disease. Lancet 2021; 397:2212-2224. [PMID: 33894145 DOI: 10.1016/s0140-6736(20)32511-3] [Citation(s) in RCA: 1062] [Impact Index Per Article: 354.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/04/2020] [Accepted: 11/13/2020] [Indexed: 02/07/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) has a global prevalence of 25% and is a leading cause of cirrhosis and hepatocellular carcinoma. NAFLD encompasses a disease continuum from steatosis with or without mild inflammation (non-alcoholic fatty liver), to non-alcoholic steatohepatitis (NASH), which is characterised by necroinflammation and faster fibrosis progression than non-alcoholic fatty liver. NAFLD has a bidirectional association with components of the metabolic syndrome, and type 2 diabetes increases the risk of cirrhosis and related complications. Although the leading causes of death in people with NAFLD are cardiovascular disease and extrahepatic malignancy, advanced liver fibrosis is a key prognostic marker for liver-related outcomes and overall mortality, and can be assessed with combinations of non-invasive tests. Patients with cirrhosis should be screened for hepatocellular carcinoma and oesophageal varices. There is currently no approved therapy for NAFLD, although several drugs are in advanced stages of development. Because of the complex pathophysiology and substantial heterogeneity of disease phenotypes, combination treatment is likely to be required for many patients with NAFLD. Healthy lifestyle and weight reduction remain crucial to the prevention and treatment of NAFLD.
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Affiliation(s)
- Elizabeth E Powell
- Centre for Liver Disease Research, Faculty of Medicine, University of Queensland, Translational Research Institute, Brisbane, QLD, Australia; Department of Gastroenterology and Hepatology, Princess Alexandra Hospital, Brisbane, QLD, Australia.
| | - Vincent Wai-Sun Wong
- Department of Medicine and Therapeutics, Chinese University of Hong Kong, Hong Kong Special Administrative Region, China; State Key Laboratory of Digestive Disease, Chinese University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Mary Rinella
- Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
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110
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Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease worldwide. NAFLD is defined by excess fat in the liver and has a multidirectional relationship with metabolic syndrome. The prevalence of NAFLD has risen rapidly in recent years in line with the obesity epidemic and associated increases in type 2 diabetes, hypertension and hypercholesterolaemia. Patients with NAFLD are at risk of cardiovascular disease and cancer, and in a proportion of individuals, NAFLD is associated with liver damage. This article summarises the epidemiology of NAFLD, the clinical approach to risk-assessing patients and briefly outlines current and future management options.
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111
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Spearman CW, Desalegn H, Ocama P, Awuku YA, Ojo O, Elsahhar M, Abdo AA, Ndububa DA, Fouad Y, Borodo MM, Ng'wanasayi M, Ally R, Elwakil R. The sub-Saharan Africa position statement on the redefinition of fatty liver disease: From NAFLD to MAFLD. J Hepatol 2021; 74:1256-1258. [PMID: 33484771 DOI: 10.1016/j.jhep.2021.01.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 01/07/2021] [Accepted: 01/10/2021] [Indexed: 02/08/2023]
Affiliation(s)
- C Wendy Spearman
- Division of Hepatology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town 7925, South Africa
| | - Hailemichael Desalegn
- Medical Department, St. Paul's Hospital, Millennium Medical College, Addis Ababa, Ethiopia
| | - Ponsiano Ocama
- School of Medicine, Department of Medicine, Makerere University College of Health Sciences, Kampala, Uganda
| | - Yaw Asante Awuku
- Department of Medicine and Therapeutics, School of Medicine, University of Health and Allied Sciences, Ho, Ghana
| | - Olusegun Ojo
- Gastroenterology and Liver Pathology Unit, Department of Morbid Anatomy, Obafemi Awolowo University and Teaching Hospital Complex, Ile Ife, Nigeria
| | - Medhat Elsahhar
- Egyptian Association for the Study of Liver and Gastrointestinal Disease (EASLGD), Police Medical Academy, Cairo, Egypt
| | | | - Dennis Amajuoyi Ndububa
- Department of Medicine, Faculty of Clinical Sciences, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Yasser Fouad
- Department of Gastroenterology, Hepatology and Endemic Medicine, Faculty of Medicine, Minia University, Minia, Egypt
| | | | | | - Reidwan Ally
- Departement of Gastroenterology, University of Witwatersr, Chris Hani Baraguanath Academic Hospital, Johansberg, South Africa
| | - Reda Elwakil
- Tropical Medicine Department, Faculty of Medicine, Ain Shams University, Egypt.
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112
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Hinton W, Nemeth B, de Lusignan S, Field B, Feher MD, Munro N, Roberts LN, Arya R, Whyte MB. Effect of type 1 diabetes and type 2 diabetes on the risk of venous thromboembolism. Diabet Med 2021; 38:e14452. [PMID: 33165941 PMCID: PMC8247424 DOI: 10.1111/dme.14452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 10/28/2020] [Accepted: 10/29/2020] [Indexed: 12/12/2022]
Abstract
AIMS Whether diabetes increases venous thromboembolism (VTE) is unclear. Any greater risk may relate to insulin resistance, but many studies did not differentiate between type 1 diabetes and type 2 diabetes for VTE risk. METHODS Retrospective cohort study of the Royal College of General Practitioners Research and Surveillance Centre, comprising over 530 primary care practices. We determined whether type 1 diabetes and/or type 2 diabetes are independent risk factors for VTE. The index date was 1 January 2009, individuals were followed to 31 December 2018, or censoring. Cox proportional hazard regression analysis was used to investigate the risk of VTE in people with type 1 diabetes and type 2 diabetes relative to no diabetes. The primary outcome was occurrence of VTE. The model was adjusted for potential confounders for VTE. RESULTS There were 7086 people with type 1 diabetes and 95,566 with type 2 diabetes, diagnosed before 1 January 2009. The non-diabetes group consisted of 1,407,699 people. In the unadjusted analysis, there was no increased risk of VTE with type 1 diabetes (HR 1.00, 95% CI 0.76-1.33) but there was for type 2 diabetes (HR 2.70, 95% CI 2.57-2.84). In the fully adjusted model, VTE risk was increased in type 1 diabetes (HR 1.46, 95% CI 1.11-1.92), but not with type 2 diabetes (HR 1.06, 95% CI 0.98-1.14). CONCLUSIONS Type 1 diabetes was associated with a greater risk for VTE while type 2 diabetes was not. Further work is needed to determine the reason(s) for this.
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Affiliation(s)
- William Hinton
- Nuffield Department of Primary Care Health SciencesUniversity of OxfordOxfordUK
| | - Banne Nemeth
- Department of Clinical EpidemiologyLeiden UniversityLeidenThe Netherlands
| | - Simon de Lusignan
- Nuffield Department of Primary Care Health SciencesUniversity of OxfordOxfordUK
- Faculty of Health & Medical SciencesUniversity of SurreyGuildfordSurreyUK
- Royal College of General PractitionersRoyal College of General Practitioners (RCGP) Research and Surveillance Centre (RSCLondonUK
| | - Ben Field
- Faculty of Health & Medical SciencesUniversity of SurreyGuildfordSurreyUK
| | - Michael D. Feher
- Nuffield Department of Primary Care Health SciencesUniversity of OxfordOxfordUK
| | - Neil Munro
- Faculty of Health & Medical SciencesUniversity of SurreyGuildfordSurreyUK
| | - Lara N. Roberts
- King’s Thrombosis CentreDepartment of Haematological MedicineKing’s College NHS Foundation TrustLondonUK
| | - Roopen Arya
- King’s Thrombosis CentreDepartment of Haematological MedicineKing’s College NHS Foundation TrustLondonUK
| | - Martin B. Whyte
- Faculty of Health & Medical SciencesUniversity of SurreyGuildfordSurreyUK
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113
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Mansour D, Grapes A, Herscovitz M, Cassidy P, Vernazza J, Broad A, Anstee QM, McPherson S. Embedding assessment of liver fibrosis into routine diabetic review in primary care. JHEP Rep 2021; 3:100293. [PMID: 34179738 PMCID: PMC8213901 DOI: 10.1016/j.jhepr.2021.100293] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 04/12/2021] [Accepted: 04/13/2021] [Indexed: 12/16/2022] Open
Abstract
Background & Aims Individuals with type 2 diabetes (T2DM) are at high risk of developing non-alcoholic fatty liver disease (NAFLD) and advanced fibrosis/cirrhosis. Screening patients with T2DM and normal liver enzymes for NAFLD in primary care remains contentious. Our aim was to develop and assess a primary care pathway integrating two-tier (Fib-4 then transient elastography [TE]) liver fibrosis assessment, irrespective of aetiology, into routine annual review of all patients with T2DM. Methods All patients aged >35 years with T2DM attending annual review at 2 primary care practices in North East England between April 2018 and September 2019 (n = 467) had Fib-4 requested via the electronic patient record. Those with a Fib-4 score above the ‘high-sensitivity’ threshold (>1.3 for ≤65 years and >2.0 for >65 years) underwent TE and were reviewed in secondary care if the liver stiffness measurement (LSM) was >8 kPa. The number of patients identified with advanced disease, service uptake, and predictors of advanced disease were assessed. Results A total of 85/467 (18.5%) patients had raised Fib-4; 27/467(5.8%) were excluded as a result of frailty or known cirrhosis. A total of 58/467 (12.2%) were referred for TE. Twenty-five of 58 (43.1%) had an LSM of >8 kPa and 13/58 (22.4%) had an LSM >15 kPa; 4/58 (6.7%) did not attend and 5/58 (9.3%) had an invalid reading. Twenty of 440 (4.5%) patients were found to have advanced liver disease following specialist review, compared to 3 patients previously identified through standard care (odds ratio [OR] 6.71 [2.0–22.7] p = 0.0022). Alcohol (OR 1.05 [1.02–1.08] p = 0.001) and BMI (OR 1.09 [1.01–1.17] p = 0.021) were predictors of advanced disease, particularly drinking >14/21 units/week (p <0.0001) Conclusions Incorporating 2-tier assessment of liver fibrosis into routine annual diabetes review in primary care significantly improves identification of advanced liver disease in patients with T2DM. Lay summary People with type 2 diabetes are at increased risk of developing non-alcoholic fatty liver disease and developing more significant complications. This study looks at introducing screening for advanced liver disease into the annual diabetes reviews performed routinely in primary care; we found that significantly more people were identified as having significant liver disease through this pathway than with current standard care. People with type 2 diabetes are at increased risk of advanced liver fibrosis, exacerbated by excess alcohol consumption. Incorporating a 2-step fibrosis assessment into primary care diabetes review increased advanced fibrosis detection 7-fold. Fib-4 scores automatically calculated at diabetic review in primary care and results displayed with advisory comments. Almost half the patients identified with advanced liver disease had alanine transferase below the laboratory cut-off. This pathway could improve detection of advanced liver disease in individuals with type 2 diabetes in primary care.
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Key Words
- ALP, alkaline phosphatase
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- EASL, European Association for the Study of the Liver
- ELF, enhanced liver fibrosis test
- Fibrosis
- GGT, gamma-glutamyl transferase
- HCC, hepatocellular carcinoma
- HbA1c, glycated haemoglobin
- LFTs, liver function tests
- LSM, liver stiffness measurement
- Liver stiffness
- NAFLD, non-alcoholic fatty liver disease
- NASH, non-alcoholic steatohepatitis
- Non-alcoholic fatty liver disease
- Non-invasive
- OR, odds ratio
- Serum biomarkers
- T2DM, type 2 diabetes
- TE, transient elastography
- Transient elastography
- Type 2 diabetes mellitus
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Affiliation(s)
- Dina Mansour
- Queen Elizabeth Hospital, Gateshead, UK.,Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | | | | | | | | | | | - Quentin M Anstee
- Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Liver Unit, Newcastle Upon Tyne Hospitals NHS Trust, Freeman Hospital, Newcastle upon Tyne, UK
| | - Stuart McPherson
- Translational & Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK.,Liver Unit, Newcastle Upon Tyne Hospitals NHS Trust, Freeman Hospital, Newcastle upon Tyne, UK
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114
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Clinical and economic burden of nonalcoholic steatohepatitis in Saudi Arabia, United Arab Emirates and Kuwait. Hepatol Int 2021; 15:912-921. [PMID: 33822317 PMCID: PMC8382637 DOI: 10.1007/s12072-021-10182-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/17/2021] [Indexed: 02/07/2023]
Abstract
Background and aims The Middle East (ME) has a high prevalence of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH), driven by obesity and type-2 diabetes mellitus (T2DM). Studies in Saudi Arabia (KSA) and United Arab Emirates (UAE) predict an escalating impact of NAFLD/NASH, particularly advanced fibrosis due to NASH (AF-NASH), increasing cases of cirrhosis, liver cancer and death. The scale of this burden in other ME countries is unknown with no reports of NAFLD/NASH healthcare resource utilization (HCRU) or costs. We estimated the clinical and economic burden of NAFLD/NASH in KSA, UAE and Kuwait. Methods Markov models populated with country-specific obesity and T2DM prevalence data estimated numbers and progression of NAFLD/NASH patients from 2018 to 2030. Model inputs, assumptions and outputs were collected from literature, national statistics, and expert consensus. Results Over 13 years, the KSA model estimated cases increasing as follows: patients with fibrosis F0–3 doubled to 2.5 m, compensated and decompensated cirrhosis and hepatocellular carcinoma trebled to 212,000; liver failure or transplant patients increased four-fold to 4,086 and liver-related death escalated from < 10,000 to > 200,000. Similar trends occurred in UAE and Kuwait. Discounted lifetime costs of NASH standard-care increased totaling USD40.41 bn, 1.59 bn and 6.36 bn in KSA, UAE (Emiratis only) and Kuwait, respectively. NASH-related costs in 2019 comprised, respectively, 5.83%, 5.80% and 7.66% of national healthcare spending. Conclusions NASH, especially AF-NASH, should be considered a higher priority in ME Public Health policy. Our analyses should inform health policy makers to mitigate the enormity of this escalating regional burden. Supplementary Information The online version contains supplementary material available at 10.1007/s12072-021-10182-x.
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115
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Eslam M, Ratziu V, George J. Yet more evidence that MAFLD is more than a name change. J Hepatol 2021; 74:977-979. [PMID: 33453331 DOI: 10.1016/j.jhep.2020.12.025] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 12/23/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Mohammed Eslam
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, NSW, Australia.
| | - Vlad Ratziu
- Sorbonne Université, Assistance Publique-Hôpitaux de Paris, Hôpital Pitié Salpêtrière, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, NSW, Australia.
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Huang DQ, El-Serag HB, Loomba R. Global epidemiology of NAFLD-related HCC: trends, predictions, risk factors and prevention. Nat Rev Gastroenterol Hepatol 2021; 18:223-238. [PMID: 33349658 PMCID: PMC8016738 DOI: 10.1038/s41575-020-00381-6] [Citation(s) in RCA: 865] [Impact Index Per Article: 288.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/23/2020] [Indexed: 02/06/2023]
Abstract
One quarter of the global population is estimated to have nonalcoholic fatty liver disease (NAFLD). The incidence of nonalcoholic steatohepatitis (NASH) is projected to increase by up to 56% in the next 10 years. NAFLD is already the fastest growing cause of hepatocellular carcinoma (HCC) in the USA, France and the UK. Globally, the prevalence of NAFLD-related HCC is likely to increase concomitantly with the growing obesity epidemic. The estimated annual incidence of HCC ranges from 0.5% to 2.6% among patients with NASH cirrhosis. The incidence of HCC among patients with non-cirrhotic NAFLD is lower, approximately 0.1 to 1.3 per 1,000 patient-years. Although the incidence of NAFLD-related HCC is lower than that of HCC of other aetiologies such as hepatitis C, more people have NAFLD than other liver diseases. Urgent measures that increase global awareness and tackle the metabolic risk factors are necessary to reduce the impending burden of NAFLD-related HCC. Emerging evidence indicates that reduced immune surveillance, increased gut inflammation and gut dysbiosis are potential key steps in tumorigenesis. In this Review, we discuss the global epidemiology, projections and risk factors for NAFLD-related HCC, and propose preventive strategies to tackle this growing problem.
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Affiliation(s)
- Daniel Q Huang
- Division of Gastroenterology and Hepatology, Department of Medicine, National University Health System, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Hashem B El-Serag
- Department of Medicine, Baylor College of Medicine, Houston, TX, USA
- Section of Gastroenterology, Michael E. DeBakey VA Medical Center, Houston, TX, USA
- Center for Innovations in Quality, Effectiveness and Safety (IQuESt), Michael E. DeBakey Veterans Affairs Medical Center, Houston, TX, USA
- Section of Health Services Research, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Rohit Loomba
- Division of Epidemiology, Department of Family Medicine and Public Health, University of California at San Diego, San Diego, CA, USA.
- NAFLD Research Center, Division of Gastroenterology. University of California at San Diego, La Jolla, CA, USA.
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Marciano S, Dirchwolf M, Torres MC, Allevato J, García Dans C, García B, Pollarsky F, Gaite L, Sirotinsky E, Rios B, Anselmo MN, Peche M, Hurtado E, Haddad L, Narvaez A, Mauro E, Martinez A, Bellizzi C, Ratusnu N, D Amico C, Arora S, Gadano A. Fibrosis assessment in patients with nonalcoholic fatty liver disease: Adherence to proposed algorithms and barriers to complying with them. REVISTA DE GASTROENTEROLOGIA DE MEXICO (ENGLISH) 2021; 87:S0375-0906(21)00015-X. [PMID: 33773856 DOI: 10.1016/j.rgmx.2020.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/13/2020] [Accepted: 08/24/2020] [Indexed: 11/29/2022]
Abstract
INTRODUCTION AND AIMS Fibrosis staging in patients with nonalcoholic fatty liver disease (NAFLD) is carried out through the application of stepwise algorithms but there is little real-world data on their use. Our aim was to calculate the number of patients with NAFLD and indeterminate or high risk for fibrosis, assessed through noninvasive scores, that consequently underwent further staging evaluation. MATERIALS AND METHODS A cross-sectional multicenter cohort study was conducted on patients with NAFLD evaluated by hepatologists within the time frame of June 1 and July 31, 2018. The FIB-4 and NAFLD fibrosis scores were calculated in all the patients, and if at least one of the scores suggested indeterminate or high risk for fibrosis, we believed the patient should have undergone additional fibrosis staging assessment. RESULTS The study included 238 patients. The median time interval from NAFLD diagnosis and inclusion in the analysis was 12.2months (IQR 3.0-36.5). A total of 128 (54%) patients had at least one noninvasive score that suggested indeterminate or high risk for fibrosis but studies to confirm the fibrosis grade (elastography, biopsy, etc.) were performed on only 72 (56%). The main barriers encountered by the physicians for applying the staging algorithms were related to health insurance coverage and imaging study costs. CONCLUSIONS A high percentage of patients with NAFLD were at indeterminate or high risk for fibrosis, according to noninvasive scores, but additional studies were carried out on only half of them, showing low adherence to current recommendations.
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Affiliation(s)
- S Marciano
- Sección Hepatología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina; Departamento de Investigación, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
| | - M Dirchwolf
- Sección Hepatología, Hospital Privado de Rosario, Rosario, Argentina
| | - M C Torres
- Sección Hepatología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - J Allevato
- Unidad de Diagnóstico y Tratamiento para Enfermedades Hepáticas de Neuquén, Neuquén, Argentina
| | - C García Dans
- Sección Hepatología, Hospital Zonal Bariloche Dr. Ramón Carrillo, Bariloche, Argentina
| | - B García
- Sección Hepatología, Centro de Estudios Digestivos de Mendoza, Mendoza, Argentina
| | - F Pollarsky
- Sección Hepatología, Hospital Dr. Carlos Bonorino Udaondo, Buenos Aires, Argentina
| | - L Gaite
- Sección Hepatología, Clínica de Nefrología, Santa Fe, Argentina
| | - E Sirotinsky
- Centro de Estudios Digestivos, Comodoro Rivadavia, Argentina
| | - B Rios
- Hepatología, Centro de Investigación, Neuquén, Argentina
| | - M N Anselmo
- Sección Gastroenterología y Hepatología, Hospital Zonal Esquel, Esquel, Argentina
| | - M Peche
- Hospital López Lima Gral Roca, Rio Negro, Argentina
| | - E Hurtado
- Hospital Municipal Coronel Suárez, Buenos Aires, Argentina
| | - L Haddad
- Sección Hepatología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - A Narvaez
- Sección Hepatología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - E Mauro
- Sección Hepatología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
| | - A Martinez
- Sección Gastroenterología, Hospital Juan A. Fernández, Buenos Aires, Argentina
| | - C Bellizzi
- Sección Gastroenterología, Hospital Juan A. Fernández, Buenos Aires, Argentina
| | - N Ratusnu
- Hospital Regional de Ushuaia, Ushuaia, Tierra del Fuego, Argentina
| | - C D Amico
- Hepatología, CEMA - Centro de Especialidades Médicas Ambulatoria, Mar del Plata, Argentina
| | - S Arora
- Project ECHO, School of Medicine, University of New Mexico, Albuquerque, New Mexico, Estados Unidos de América
| | - A Gadano
- Sección Hepatología, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina; Departamento de Investigación, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina
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Nonalcoholic Steatohepatitis Is the Most Rapidly Increasing Indication for Liver Transplantation in the United States. Clin Gastroenterol Hepatol 2021; 19:580-589.e5. [PMID: 32531342 DOI: 10.1016/j.cgh.2020.05.064] [Citation(s) in RCA: 252] [Impact Index Per Article: 84.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/12/2020] [Accepted: 05/29/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The profile of chronic liver disease (CLD) in the United States has changed due to obesity trends and advances in treatment of viral hepatitis. We assessed liver transplant listing trends by CLD etiology. METHODS Adult candidates for liver transplantation were selected from the Scientific Registry of Transplant Recipients (2002 through 2019). We calculated proportion trends for common CLD etiologies at time of placement on the wait list, including chronic infection with hepatitis B virus, chronic infection with hepatitis C virus (HCV), nonalcoholic steatohepatitis (NASH, including cryptogenic cirrhosis), alcohol-related liver disease (ALD) without or with chronic HCV infection, autoimmune hepatitis, primary biliary cholangitis, and primary sclerosing cholangitis, in patients with and without hepatocellular carcinoma (HCC). RESULTS From the 168,441 patients with known etiology and non-acute liver failure on the liver transplant waitlist, 27,799 patients (16.5%) had HCC. In 2002, the most common etiologies in patients without HCC were chronic HCV infection (37%) and ALD (16%), whereas only 5% had NASH. Among patients with HCC, 58% had chronic HCV infection and 10% had ALD and only 1% had NASH. In 2019, among patients without HCC, NASH was the second leading indication for liver transplantation (28% of patients), after ALD (38% of patients). Among patients with HCC, chronic HCV infection remained the leading indication (40% of patients) but NASH (24% of patients) surpassed ALD (16% of patients) to become the second leading indication. NASH was the leading indication in women without HCC (34%), in patients older than 54 years (36%), and in patients on Medicare (41%). In trend analysis, NASH was the most rapidly increasing indication for liver transplantation in patients without HCC (Kendall tau=0.97; P < .001) and in patients with HCC (tau=0.94; P < .0001). CONCLUSIONS In an analysis of data from the Scientific Registry of Transplant Recipients (2002 through 2019), we found NASH to be the second most common indication for liver transplant in 2019, and the fastest increasing indication. In 2019, NASH was the leading indication for liver transplantation among women without HCC.
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119
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Terai S, Buchanan-Hughes A, Ng A, Lee IH, Hasegawa K. Comorbidities and healthcare costs and resource use of patients with nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) in the Japan medical data vision database. J Gastroenterol 2021; 56:274-284. [PMID: 33496858 PMCID: PMC7932941 DOI: 10.1007/s00535-021-01759-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 01/02/2021] [Indexed: 02/04/2023]
Abstract
BACKGROUND This study examined demographics, comorbidities and healthcare resource use (HCRU) and costs among Japanese patients with nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH). METHODS We conducted a repeated cross-sectional analysis of the Medical Data Vision (MDV) claims database, from January 2011 to March 2018. Demographics were described at index date and by calendar year; a "NASH" subpopulation included patients with ≥ 1 claim for NASH at any time. Prevalence of pre-specified comorbidities of interest and data-emergent top comorbidities were estimated. All-cause HCRU and costs were quantified by calendar year. Outcomes were compared between 2011 and 2017 using partially overlapping t tests. RESULTS 58,958 patients (mean age 61.6 years; 55.5% male) were included. 1139 patients (2%) were in the NASH subpopulation. At baseline, comorbid cardiovascular disease (69.4%), diabetes (62.1%) and hyperlipidaemia (54.4%) were most prevalent; comorbidity prevalence increased with age. Mean outpatient visits decreased from 9.36 per patient in 2011 to 7.80 in 2017; mean inpatient admissions increased (both p < 0.001 for 2011 vs 2017). Mean total all-cause healthcare costs ranged from ¥322,206 to ¥340,399 per patient per year between 2011 and 2017. Although total all-cause healthcare costs did not change significantly (p = 0.552), cost burden shifted from the outpatient to inpatient setting between 2011 and 2017. All-cause healthcare resource use/costs were generally higher for the NASH subgroup compared with the overall population. CONCLUSIONS There is a high burden of disease among Japanese NAFLD/NASH patients, including a high prevalence of comorbidities which generally increase with age. Accordingly, substantial all-cause HCRU and costs were incurred.
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Affiliation(s)
- Shuji Terai
- Division of Gastroenterology and Hepatology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan
| | | | - Alvin Ng
- Costello Medical, Singapore, Singapore
| | - I-Heng Lee
- Gilead Sciences Inc, Foster City, CA, USA
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Ramai D, Tai W, Rivera M, Facciorusso A, Tartaglia N, Pacilli M, Ambrosi A, Cotsoglou C, Sacco R. Natural Progression of Non-Alcoholic Steatohepatitis to Hepatocellular Carcinoma. Biomedicines 2021; 9:biomedicines9020184. [PMID: 33673113 PMCID: PMC7918599 DOI: 10.3390/biomedicines9020184] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 02/01/2021] [Accepted: 02/09/2021] [Indexed: 12/14/2022] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is a chronic and progressive form of non-alcoholic fatty liver disease (NAFLD). Its global incidence is increasing which makes NASH an epidemic and a public health threat. Due to repeated insults to the liver, patients are at risk for developing hepatocellular carcinoma (HCC). The progression of NASH to HCC was initially defined according to a two-hit model which involved the development of steatosis, followed by lipid peroxidation and inflammation. However, current research defines a “multi-hit” or “multi-parallel hit” model which synthesizes several contributing pathways involved in progressive fibrosis and oncogenesis. This perspective considers the effects of cellular, genetic, immunologic, metabolic, and endocrine pathways leading up to HCC which underscores the complexity of this condition. This article will provide an updated review of the pathogenic mechanisms leading from NASH to HCC as well as an exploration of the role of biomarkers and screening.
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Affiliation(s)
- Daryl Ramai
- Department of Internal Medicine, The Brooklyn Hospital Center, Brooklyn, NY 11201, USA; (D.R.); (W.T.); (M.R.)
| | - Waqqas Tai
- Department of Internal Medicine, The Brooklyn Hospital Center, Brooklyn, NY 11201, USA; (D.R.); (W.T.); (M.R.)
| | - Michelle Rivera
- Department of Internal Medicine, The Brooklyn Hospital Center, Brooklyn, NY 11201, USA; (D.R.); (W.T.); (M.R.)
| | - Antonio Facciorusso
- Section of Gastroenterology, Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy;
| | - Nicola Tartaglia
- General Surgery Unit, Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (N.T.); (M.P.); (A.A.)
| | - Mario Pacilli
- General Surgery Unit, Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (N.T.); (M.P.); (A.A.)
| | - Antonio Ambrosi
- General Surgery Unit, Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy; (N.T.); (M.P.); (A.A.)
| | - Christian Cotsoglou
- General Surgey Unit, Department of Surgery, ASST-Vimercate, 20871 Vimercate, Italy;
| | - Rodolfo Sacco
- Section of Gastroenterology, Department of Medical and Surgical Sciences, University of Foggia, 71122 Foggia, Italy;
- Correspondence:
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Hayward KL, Johnson AL, Horsfall LU, Moser C, Valery PC, Powell EE. Detecting non-alcoholic fatty liver disease and risk factors in health databases: accuracy and limitations of the ICD-10-AM. BMJ Open Gastroenterol 2021; 8:bmjgast-2020-000572. [PMID: 33568418 PMCID: PMC7878135 DOI: 10.1136/bmjgast-2020-000572] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/22/2020] [Accepted: 01/06/2021] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The prevalence of non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) cirrhosis is often underestimated in healthcare and administrative databases that define disease burden using International Classification of Diseases (ICD) codes. This retrospective audit was conducted to explore the accuracy and limitations of the ICD, Tenth Revision, Australian Modification (ICD-10-AM) to detect NAFLD, metabolic risk factors (obesity and diabetes) and other aetiologies of chronic liver disease. DESIGN/METHOD ICD-10-AM codes in 308 admitted patient encounters at two major Australian tertiary hospitals were compared with data abstracted from patients' electronic medical records. Accuracy of individual codes and grouped combinations was determined by calculating sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and Cohen's kappa coefficient (κ). RESULTS The presence of an ICD-10-AM code accurately predicted the presence of NAFLD/NASH (PPV 91.2%) and obesity (PPV 91.6%) in most instances. However, codes underestimated the prevalence of NAFLD/NASH and obesity by 42.9% and 45.3%, respectively. Overall concordance between clinical documentation and 'grouped alcohol' codes (κ 0.75) and hepatitis C codes (κ 0.88) was high. Hepatitis B codes detected false-positive cases in patients with previous exposure (PPV 55.6%). Accuracy of codes to detect diabetes was excellent (sensitivity 95.8%; specificity 97.6%; PPV 94.9%; NPV 98.1%) with almost perfect concordance between codes and documentation in medical records (κ 0.93). CONCLUSION Recognition of the utility and limitations of ICD-10-AM codes to study the burden of NAFLD/NASH cirrhosis is imperative to inform public health strategies and appropriate investment of resources to manage this burgeoning chronic disease.
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Affiliation(s)
- Kelly Lee Hayward
- Centre for Liver Disease Research, The University of Queensland, Woolloongabba, Queensland, Australia.,Princess Alexandra Hospital, Metro South Hospital and Health Service, Woolloongabba, Queensland, Australia
| | - Amy L Johnson
- Centre for Liver Disease Research, The University of Queensland, Woolloongabba, Queensland, Australia.,Princess Alexandra Hospital, Metro South Hospital and Health Service, Woolloongabba, Queensland, Australia
| | - Leigh U Horsfall
- Centre for Liver Disease Research, The University of Queensland, Woolloongabba, Queensland, Australia.,Princess Alexandra Hospital, Metro South Hospital and Health Service, Woolloongabba, Queensland, Australia
| | - Chris Moser
- Statistical Services Branch, Queensland Government Department of Health and Ageing, Brisbane, Queensland, Australia
| | - Patricia C Valery
- Centre for Liver Disease Research, The University of Queensland, Woolloongabba, Queensland, Australia.,QIMR Berghofer Medical Research Institute, Population Health, Herston, Queensland, Australia
| | - Elizabeth E Powell
- Centre for Liver Disease Research, The University of Queensland, Woolloongabba, Queensland, Australia .,Princess Alexandra Hospital, Metro South Hospital and Health Service, Woolloongabba, Queensland, Australia
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122
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Ando Y, Jou JH. Nonalcoholic Fatty Liver Disease and Recent Guideline Updates. Clin Liver Dis (Hoboken) 2021; 17:23-28. [PMID: 33552482 PMCID: PMC7849298 DOI: 10.1002/cld.1045] [Citation(s) in RCA: 92] [Impact Index Per Article: 30.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 09/17/2020] [Accepted: 09/20/2020] [Indexed: 02/04/2023] Open
Abstract
Watch a video presentation of this article.
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Affiliation(s)
- Yumi Ando
- Division of Gastroenterology and HepatologyDepartment of MedicineOregon Health & Science University HospitalPortlandOR
| | - Janice H. Jou
- Division of Gastroenterology and HepatologyDepartment of MedicineOregon Health & Science University HospitalPortlandOR,Division of Gastroenterology and HepatologyDepartment of MedicinePortland VA Medical CenterPortlandOR
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123
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Long MT, Zhang X, Xu H, Liu CT, Corey KE, Chung RT, Loomba R, Benjamin EJ. Hepatic Fibrosis Associates With Multiple Cardiometabolic Disease Risk Factors: The Framingham Heart Study. Hepatology 2021; 73:548-559. [PMID: 33125745 PMCID: PMC8515503 DOI: 10.1002/hep.31608] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/21/2020] [Accepted: 10/06/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND AND AIMS NAFLD is increasing in prevalence and will soon be the most common chronic liver disease. Liver stiffness, as assessed by vibration-controlled transient elastography (VCTE), correlates with hepatic fibrosis, an important predictor of liver-related and all-cause mortality. Although liver fat is associated with cardiovascular risk factors, the association between hepatic fibrosis and cardiovascular risk factors is less clear. APPROACH AND RESULTS We performed VCTE, assessing controlled attenuation parameter (CAP; measure of steatosis) and liver stiffness measurement (LSM) in 3,276 Framingham Heart Study adult participants (53.9% women, mean age 54.3 ± 9.1 years) presenting for a routine study visit. We performed multivariable-adjusted logistic regression models to determine the association between LSM and obesity-related, vascular-related, glucose-related, and cholesterol-related cardiovascular risk factors. The prevalence of hepatic steatosis (CAP ≥ 290 dB/m) was 28.8%, and 8.8% had hepatic fibrosis (LSM ≥ 8.2 kPa). Hepatic fibrosis was associated with multiple cardiovascular risk factors, including increased odds of obesity (OR, 1.82; 95% CI, 1.35-2.47), metabolic syndrome (OR, 1.49; 95% CI 1.10-2.01), diabetes (OR, 2.67; 95% CI, 1.21-3.75), hypertension (OR, 1.52; 95% CI, 1.15-1.99), and low high-density lipoprotein cholesterol (OR, 1.47; 95% CI, 1.09-1.98), after adjustment for age, sex, smoking status, alcohol drinks/week, physical activity index, aminotransferases, and CAP. CONCLUSIONS In our community-based cohort, VCTE-defined hepatic fibrosis was associated with multiple cardiovascular risk factors, including obesity, metabolic syndrome, diabetes, hypertension, and high-density lipoprotein cholesterol, even after accounting for covariates and CAP. Additional longitudinal studies are needed to determine if hepatic fibrosis contributes to incident cardiovascular disease risk factors or events.
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Affiliation(s)
- Michelle T Long
- Section of GastroenterologyBoston Medical CenterBoston University School of MedicineBostonMA
| | - Xiaoyu Zhang
- Department of BiostatisticsBoston UniversityBostonMA
| | - Hanfei Xu
- Department of BiostatisticsBoston UniversityBostonMA
| | - Ching-Ti Liu
- Department of BiostatisticsBoston UniversityBostonMA
| | - Kathleen E Corey
- Liver CenterGastroenterology DivisionDepartment of MedicineMassachusetts General HospitalHarvard Medical SchoolBostonMA
| | - Raymond T Chung
- Liver CenterGastroenterology DivisionDepartment of MedicineMassachusetts General HospitalHarvard Medical SchoolBostonMA
| | - Rohit Loomba
- Division of GastroenterologyDepartment of Medicine and Division of EpidemiologyDepartment of Family and PreventiveUniversity of California at San DiegoLa JollaCA
| | - Emelia J Benjamin
- Evans Department of MedicineWhitaker Cardiovascular Institute and Cardiology SectionBoston University School of MedicineBostonMA
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124
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Ma Q, Yang F, Ma B, Jing W, Liu J, Guo M, Li J, Wang Z, Liu M. Prevalence of nonalcoholic fatty liver disease in mental disorder inpatients in China: an observational study. Hepatol Int 2021; 15:127-136. [PMID: 33512644 PMCID: PMC7886739 DOI: 10.1007/s12072-020-10132-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 12/26/2020] [Indexed: 12/14/2022]
Abstract
Background and Purpose Non-alcoholic fatty liver disease (NAFLD) is becoming the most common liver disease in China. However, the understanding of NAFLD prevalence among Chinese mental disorder inpatients remains insufficient. We aim to investigate the prevalence of NAFLD among mental disorder inpatients in Beijing, China.
Methods In this observational study, we included 66,273 mental disorder inpatients between 2014 and 2018, including inpatients with schizophrenia, bipolar disorder, depressive disorder and other mental disorders. Data were obtained from electronic health records of 19 specialized psychiatric hospitals in Beijing. NAFLD was defined by ICD-10 code, excluding other causes of liver disease. We calculated the overall and annual prevalence rates of NAFLD from 2014 to 2018, and compared NAFLD prevalence between sexes, age groups, mental disorders types, antipsychotics use, and comorbidities. Multivariable logistic regression was used to examine risk factors associated with NAFLD. Subgroup analysis was performed in different mental disorder types. Results The prevalence of NAFLD was 17.63% (95% CI 17.34–17.92%) in mental disorder inpatients, increasing from 16.88% in 2014 to 19.07% in 2018. The NAFLD prevalence in participants with schizophrenia (22.44%) was higher than that in participants with bipolar disorder (17.89%), depressive disorder (12.62%), and other mental disorders (12.99%). Women had similar or even higher NAFLD prevalence than men after 50 years. Men, 50–59 years (aOR = 1.71), schizophrenia (aOR = 1.56), bipolar disorder (aOR = 1.47), antipsychotics use (aOR = 1.46), hypertension (aOR = 1.50), diabetes (aOR = 1.83), dyslipidemia (aOR = 2.50) were risk factors for NAFLD in mental disorder inpatients. Conclusion NAFLD was common among Chinese mental disorder inpatients, and increased over years. The prevalence of NAFLD was higher among men, old women, inpatients with schizophrenia, bipolar disorder, antipsychotics, hypertension, diabetes, and dyslipidemia. Fatty liver disease among mental disorder population warrants the attention of psychiatric specialists and health policy-makers. Supplementary Information The online version contains supplementary material available at 10.1007/s12072-020-10132-z.
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Affiliation(s)
- Qiuyue Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, No.38, Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Fude Yang
- Beijing Huilongguan Hospital, Peking University Huilonguan Clinical Medical School, No.7, Huilongguan Nandian Road, Changping District, Beijing, 100096, China.
| | - Botao Ma
- Beijing Huilongguan Hospital, Peking University Huilonguan Clinical Medical School, No.7, Huilongguan Nandian Road, Changping District, Beijing, 100096, China
| | - Wenzhan Jing
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, No.38, Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Jue Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, No.38, Xueyuan Road, Haidian District, Beijing, 100191, China
| | - Moning Guo
- Beijing Municipal Commission of Health and Family Planning Information Center, Beijing Municipal Commission of Health and Family Planning Policy Research Center, No.277, Zhaodengyu Road, Xicheng District, Beijing, 100034, China
| | - Juan Li
- Beijing Geriatric Hospital, No.118, Wenquan Road, Haidian District, Beijing, 100095, China
| | - Zhiren Wang
- Beijing Huilongguan Hospital, Peking University Huilonguan Clinical Medical School, No.7, Huilongguan Nandian Road, Changping District, Beijing, 100096, China
| | - Min Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, No.38, Xueyuan Road, Haidian District, Beijing, 100191, China.
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Mendez-Sanchez N, Arrese M, Gadano A, Oliveira CP, Fassio E, Arab JP, Chávez-Tapia NC, Dirchwolf M, Torre A, Ridruejo E, Pinchemel-Cotrim H, Castellanos Fernández MI, Uribe M, Girala M, Diaz-Ferrer J, Restrepo JC, Padilla-Machaca M, Dagher L, Gatica M, Olaechea B, Pessôa MG, Silva M. The Latin American Association for the Study of the Liver (ALEH) position statement on the redefinition of fatty liver disease. Lancet Gastroenterol Hepatol 2021; 6:65-72. [PMID: 33181118 DOI: 10.1016/s2468-1253(20)30340-x] [Citation(s) in RCA: 90] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 02/07/2023]
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126
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Bardugo A, Bendor CD, Zucker I, Lutski M, Cukierman-Yaffe T, Derazne E, Mosenzon O, Tzur D, Beer Z, Pinhas-Hamiel O, Ben-Ami M, Fishman B, Ben-Ami Shor D, Raz I, Afek A, Gerstein HC, Häring HU, Tirosh A, Levi Z, Twig G. Adolescent Nonalcoholic Fatty Liver Disease and Type 2 Diabetes in Young Adulthood. J Clin Endocrinol Metab 2021; 106:e34-e44. [PMID: 33075820 DOI: 10.1210/clinem/dgaa753] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Indexed: 02/08/2023]
Abstract
CONTEXT The long-term risk of type 2 diabetes in adolescents with nonalcoholic fatty liver disease (NAFLD) is unclear. OBJECTIVE To assess type 2 diabetes risk among adolescents with NAFLD. DESIGN AND SETTING A nationwide, population-based study of Israeli adolescents who were examined before military service during 1997-2011 and were followed until December 31, 2016. PARTICIPANTS A total of 1 025 796 normoglycemic adolescents were included. INTERVENTIONS Biopsy or radiographic tests were prerequisite for NAFLD diagnosis. Data were linked to the Israeli National Diabetes Registry. MAIN OUTCOME MEASURES Type 2 diabetes incidence. RESULTS During a mean follow-up of 13.3 years, 12 of 633 adolescents with NAFLD (1.9%; all with high body mass index [BMI] at baseline) were diagnosed with type 2 diabetes compared with 2917 (0.3%) adolescents without NAFLD. The hazard ratio (HR) for type 2 diabetes was 2.59 (95% confidence interval [CI], 1.47-4.58) for the NAFLD vs. the non-NAFLD group after adjustment for BMI and sociodemographic confounders. The elevated risk persisted in several sensitivity analyses. These included an analysis of persons without other metabolic comorbidities (adjusted HR, 2.75 [95% CI, 1.48-5.14]) and of persons with high BMI; and an analysis whose outcome was type 2 diabetes by age 30 years (adjusted HR, 2.14 [95% CI, 1.02-4.52]). The results remained significant when a sex-, birth year-, and BMI-matched control group was the reference (adjusted HR, 2.98 [95% CI, 1.54-5.74]). CONCLUSIONS Among normoglycemic adolescents, NAFLD was associated with an increased adjusted risk for type 2 diabetes, which may be apparent before age 30 years.
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Affiliation(s)
- Aya Bardugo
- Department of Military Medicine, Hebrew University, Jerusalem and the Israel Defense Forces Medical Corps, Ramat Gan, Israel
| | - Cole D Bendor
- Department of Military Medicine, Hebrew University, Jerusalem and the Israel Defense Forces Medical Corps, Ramat Gan, Israel
| | - Inbar Zucker
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Israel Center for Disease Control, Ministry of Health, Ramat Gan, Israel
| | - Miri Lutski
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Israel Center for Disease Control, Ministry of Health, Ramat Gan, Israel
| | - Tali Cukierman-Yaffe
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Institute of Endocrinology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Estela Derazne
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ofri Mosenzon
- The Diabetes Unit, Department of Internal Medicine, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Dorit Tzur
- Department of Military Medicine, Hebrew University, Jerusalem and the Israel Defense Forces Medical Corps, Ramat Gan, Israel
| | - Zivan Beer
- Department of Military Medicine, Hebrew University, Jerusalem and the Israel Defense Forces Medical Corps, Ramat Gan, Israel
| | - Orit Pinhas-Hamiel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Endocrine and Diabetes Unit, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Michal Ben-Ami
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Endocrine and Diabetes Unit, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Boris Fishman
- Department of Military Medicine, Hebrew University, Jerusalem and the Israel Defense Forces Medical Corps, Ramat Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Internal Medicine D and Hypertension Unit, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Dana Ben-Ami Shor
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Gastroenterology, Tel-Aviv Medical Center, Tel Aviv, Israel
| | - Itamar Raz
- The Diabetes Unit, Department of Internal Medicine, Hadassah Hebrew University Hospital, Jerusalem, Israel
| | - Arnon Afek
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Central Management, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | | | - Hans-Ulrich Häring
- Department of Internal Medicine IV, University Hospital Tübingen, Tübingen, Germany
- Institute of Diabetes Research and Metabolic Diseases, Helmholtz Center Munich, University of Tübingen, Tübingen, Germany
- German Center for Diabetes Research, Tübingen, Germany
| | - Amir Tirosh
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Institute of Endocrinology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Zohar Levi
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Gastroenterology Department, Rabin Medical Center, Petach Tikva, Israel
| | - Gilad Twig
- Department of Military Medicine, Hebrew University, Jerusalem and the Israel Defense Forces Medical Corps, Ramat Gan, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- Institute of Endocrinology, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
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Ruuskanen MO, Åberg F, Männistö V, Havulinna AS, Méric G, Liu Y, Loomba R, Vázquez-Baeza Y, Tripathi A, Valsta LM, Inouye M, Jousilahti P, Salomaa V, Jain M, Knight R, Lahti L, Niiranen TJ. Links between gut microbiome composition and fatty liver disease in a large population sample. Gut Microbes 2021; 13:1-22. [PMID: 33651661 PMCID: PMC7928040 DOI: 10.1080/19490976.2021.1888673] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 01/14/2021] [Accepted: 01/28/2021] [Indexed: 02/08/2023] Open
Abstract
Fatty liver disease is the most common liver disease in the world. Its connection with the gut microbiome has been known for at least 80 y, but this association remains mostly unstudied in the general population because of underdiagnosis and small sample sizes. To address this knowledge gap, we studied the link between the Fatty Liver Index (FLI), a well-established proxy for fatty liver disease, and gut microbiome composition in a representative, ethnically homogeneous population sample of 6,269 Finnish participants. We based our models on biometric covariates and gut microbiome compositions from shallow metagenome sequencing. Our classification models could discriminate between individuals with a high FLI (≥60, indicates likely liver steatosis) and low FLI (<60) in internal cross-region validation, consisting of 30% of the data not used in model training, with an average AUC of 0.75 and AUPRC of 0.56 (baseline at 0.30). In addition to age and sex, our models included differences in 11 microbial groups from class Clostridia, mostly belonging to orders Lachnospirales and Oscillospirales. Our models were also predictive of the high FLI group in a different Finnish cohort, consisting of 258 participants, with an average AUC of 0.77 and AUPRC of 0.51 (baseline at 0.21). Pathway analysis of representative genomes of the positively FLI-associated taxa in (NCBI) Clostridium subclusters IV and XIVa indicated the presence of, e.g., ethanol fermentation pathways. These results support several findings from smaller case-control studies, such as the role of endogenous ethanol producers in the development of the fatty liver.
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Affiliation(s)
- Matti O. Ruuskanen
- Department of Internal Medicine, University of Turku, Turku, Finland
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Fredrik Åberg
- Transplantation and Liver Surgery Clinic, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
- Transplant Institute, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Ville Männistö
- Department of Medicine, Kuopio University Hospital, University of Eastern Finland, Kuopio, Finland
- Department of Experimental Vascular Medicine, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
| | - Aki S. Havulinna
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
- Institute for Molecular Medicine Finland, FIMM - HiLIFE, Helsinki, Finland
| | - Guillaume Méric
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Department of Infectious Diseases, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Yang Liu
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Department of Clinical Pathology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Rohit Loomba
- Department of Medicine, NAFLD Research Center, La Jolla, CA, USA
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Yoshiki Vázquez-Baeza
- Center for Microbiome Innovation, Jacobs School of Engineering, University of California San Diego, La Jolla, CA, USA
| | - Anupriya Tripathi
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, CA, USA
- Division of Biological Sciences, University of California San Diego, La Jolla, CA, USA
| | - Liisa M. Valsta
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Michael Inouye
- Cambridge Baker Systems Genomics Initiative, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Department of Public Health and Primary Care, Cambridge University, Cambridge, UK
| | - Pekka Jousilahti
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Veikko Salomaa
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
| | - Mohit Jain
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
- Department of Pharmacology, University of California San Diego, La Jolla, California, USA
| | - Rob Knight
- Center for Microbiome Innovation, Jacobs School of Engineering, University of California San Diego, La Jolla, CA, USA
- Department of Pediatrics, School of Medicine, University of California San Diego, La Jolla, California, USA
- Department of Computer Science & Engineering, University of California San Diego, La Jolla, California, USA
| | - Leo Lahti
- Deparment of Computing, University of Turku, Turku, Finland
| | - Teemu J. Niiranen
- Department of Internal Medicine, University of Turku, Turku, Finland
- Department of Public Health Solutions, Finnish Institute for Health and Welfare, Helsinki, Finland
- Division of Medicine, Turku University Hospital, Turku, Finland
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Ould Setti M, Voutilainen A, Tuomainen TP. Renal hyperfiltration, fatty liver index, and the hazards of all-cause and cardiovascular mortality in Finnish men. Epidemiol Health 2020; 43:e2021001. [PMID: 33445827 PMCID: PMC7952838 DOI: 10.4178/epih.e2021001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/18/2020] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVES Renal hyperfiltration (RHF) and fatty liver are separately associated with adverse health outcomes. In this study, we investigated the mortality hazard of coexisting RHF and fatty liver. METHODS Middle-aged men from the Kuopio Ischaemic Disease Risk Factor Study (n=1,552) were followed up for a median of 29 years. Associations among RHF, fatty liver index (FLI) score, age, body mass index, smoking status, alcohol consumption, and hypertension status were assessed using logistic regression. Cox proportional hazards models were used to determine the hazard ratios (HRs) for all-cause and cardiovascular disease (CVD) mortality with respect to RHF and fatty liver. RESULTS Of the men, 5% had RHF (n=73), whereas a majority had fatty liver (n=848). RHF was associated specifically with smoking, and fatty liver was associated specifically with overweight. The all-cause mortality hazard was highest (HR, 1.96; 95% confidence interval [CI], 1.27 to 3.01) among men with RHF and fatty liver (n=33). Among men with RHF but normal FLI (n=40), the HR of all-cause mortality was 1.67 (95% CI, 1.15 to 2.42). Among men with fatty liver but a normal estimated glomerular filtration rate (n=527), the HR of all-cause mortality was 1.35 (95% CI, 1.09 to 1.66). CVD mortality hazard was associated with RHF, but not fatty liver. We detected no interaction effect between RHF and fatty liver for all-cause (synergy index, 0.74; 95% CI, 0.21 to 2.67) or CVD (synergy index, 0.94; 95% CI, 0.34 to 2.60) mortality. CONCLUSIONS RHF and fatty liver are independently associated with all-cause and CVD mortality
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Affiliation(s)
- Mounir Ould Setti
- Department of Public Health, University of Eastern Finland, Kuopio, Finland
| | - Ari Voutilainen
- Department of Public Health, University of Eastern Finland, Kuopio, Finland
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129
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Readiness for the epidemic: The adult nonalcoholic fatty liver disease toolkit for primary care nurse practitioners. J Am Assoc Nurse Pract 2020; 32:323-331. [PMID: 31274677 DOI: 10.1097/jxx.0000000000000223] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND PURPOSE Nonalcoholic fatty liver disease (NAFLD) prevalence has reached epidemic proportions, and the severe form, nonalcoholic steatohepatitis, can result in cirrhosis and liver failure. The growing prevalence requires primary care (PC) providers to be adept at recognition and management; however, they experience significant knowledge gaps that can result in delayed access to interventions that could improve outcomes. This study's aim was to develop and evaluate a toolkit to improve knowledge gaps and support evidence-based practice (EBP) among PC nurse practitioners caring for patients with NAFLD in a midwestern state. METHODS AND INTERVENTION The Adult NAFLD Toolkit was designed using the Knowledge to Action framework and guidelines from the Agency for Healthcare Research and Quality. The success of the toolkit was evaluated by administering the NAFLD survey for general practitioners in a pre-post evaluation design. RESULTS Pre-post survey scores (N = 11) were compared for statistically significant change using the Wilcoxon signed rank test for matched pairs and showed improvement in overall knowledge (p = .011), perceived preparedness to care for NAFLD (p = .007), intention to recommend weight loss for management (p = .008), and intention to use the NAFLD fibrosis score for patient monitoring (p = .008). CONCLUSIONS The results of this pilot study demonstrate successful implementation and positive outcomes of an EBP toolkit and support its expanded use. Continued evaluation on a larger scale is needed. Health care providers can use the process described in this article to develop and implement toolkits to support EBP of other PC issues.
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130
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Boursier J, Tsochatzis EA. Case-finding strategies in non-alcoholic fatty liver disease. JHEP Rep 2020; 3:100219. [PMID: 33659890 PMCID: PMC7896150 DOI: 10.1016/j.jhepr.2020.100219] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 12/18/2022] Open
Abstract
Among the large population of patients with non-alcoholic fatty liver disease (NAFLD), identifying those with advanced disease remains challenging. Many patients are diagnosed late, following the development of liver-related complications, leading to poor clinical outcomes. Accumulating evidence suggests that using non-invasive tests for liver fibrosis in patients with metabolic risk factors improves the detection of patients in need of specialised management and is cost-effective. Because of the vast number of patients requiring evaluation, the active participation of general practitioners and physicians who manage patients with metabolic disorders, such as diabetologists, is crucial; this calls for the increased awareness of NAFLD beyond liver clinics. Non-invasive case-finding strategies will need to be further validated and generalised for upcoming drug therapies to have the required impact on the worldwide burden of NAFLD.
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Key Words
- ALD, alcohol-related liver disease
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- Awareness
- Case-finding
- Cirrhosis
- Cost-effectiveness
- ELF, enhanced liver fibrosis
- Elastography
- FIB-4
- FIB-4, fibrosis-4
- GP, general practitioner
- Liver fibrosis
- NAFLD, non-alcoholic fatty liver disease
- NAS, NAFLD activity score
- NASH, non-alcoholic steatohepatitis
- NFS, NAFLD fibrosis score
- NICE, National Institute of Clinical Excellence
- NIT, non-invasive test
- Patient pathway
- Primary care
- QALY, quality-adjusted life year
- Screening
- T2DM, type 2 diabetes mellitus
- TE, transient elastography
- Type 2 diabetes mellitus
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Affiliation(s)
- Jerome Boursier
- Service d'Hépato-Gastroentérologie et Oncologie Digestive, Centre Hospitalier Universitaire d'Angers, Angers, France.,Laboratoire HIFIH, UPRES EA3859, SFR 4208, Université d'Angers, Angers, France
| | - Emmanuel A Tsochatzis
- Sheila Sherlock Liver Centre, Royal Free Hospital, London, UK.,UCL Institute for Liver and Digestive Health, Royal Free Campus, UCL, London, UK
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131
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A New, Non-Invasive Scale for Steatosis Developed Using Real-World Data From Russian Outpatients to Aid in the Diagnosis of Non-Alcoholic Fatty Liver Disease. Adv Ther 2020; 37:4627-4640. [PMID: 32939691 PMCID: PMC7547949 DOI: 10.1007/s12325-020-01493-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Accepted: 09/02/2020] [Indexed: 01/22/2023]
Abstract
Introduction The current non-invasive tools for the diagnosis of non-alcoholic fatty liver disease (NAFLD) have methodological limitations. We aimed to develop a non-invasive scale to assist in the diagnosis of NAFLD. To achieve our aim, we conducted a secondary analysis of data from a large observational study conducted in Russia. Methods This retrospective analysis assessed the frequency of NAFLD in the population of patients in the DIREG_L_06725 study, an epidemiological, observational, cross-sectional, multicenter study performed in 50,145 outpatients from 16 Russian cities. Among the cohort of patients diagnosed with NAFLD, we identified factors associated with the risk of NAFLD. To develop a non-invasive tool for diagnosing NAFLD, we also determined the frequency of steatohepatitis. Results Our analysis included 48,297 patients; NAFLD was present in 20,281 patients (42.0%). The majority (64.1%) were women (80.3% post-menopause), and 87% had a body mass index (BMI) > 27.0 kg/m2. We developed a fully non-invasive scale (St-index) that showed a specificity of 91.4% for ruling in steatosis, and a sensitivity of 93.8% for ruling out steatosis. Multivariate regression analyses conducted in the subgroups of patients aged ≥ 12 and < 18 years and those with BMI < 25.0 kg/m2 produced area under the receiver operating characteristic (AUROC) curve values of 0.8243 and 0.7054, respectively. The factors most strongly associated with the development of NAFLD were age > 35 years, presence of type 2 diabetes mellitus, and a waist circumference/height ratio > 0.54. Conclusion Our non-invasive steatosis scale, St-index, can help physicians diagnose NAFLD in high-risk patients in the absence of ultrasound data.
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Lin SZ, Chen YW, Fan JG. Non-alcoholic fatty liver disease to metabolic dysfunction-associated fatty liver disease: Conceptual changes for clinicians, researchers and patients. J Dig Dis 2020; 21:604-609. [PMID: 32975050 DOI: 10.1111/1751-2980.12944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/17/2020] [Accepted: 09/20/2020] [Indexed: 12/11/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is now the most common etiology of chronic liver disease threatening global public health. However, the name "NAFLD" is no longer appropriate with the change of time. Recently, a new term, "metabolic dysfunction-associated fatty liver disease" has been proposed by an international panel of experts, which implies profound conceptual changes in terms of its metabolism-related etiology and disease heterogeneity. In this article we discuss the specific conceptual changes that clinicians, researchers and patients must absorb.
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Affiliation(s)
- Shuang Zhe Lin
- Department of Gastroenterology, Xin Hua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuan Wen Chen
- Department of Gastroenterology, Xin Hua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Gao Fan
- Department of Gastroenterology, Xin Hua Hospital affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Shanghai Key Laboratory of Pediatric Gastroenterology and Nutrition, Shanghai, China
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Vitamin D and Metabolic Dysfunction-Associated Fatty Liver Disease (MAFLD): An Update. Nutrients 2020; 12:nu12113302. [PMID: 33126575 PMCID: PMC7693133 DOI: 10.3390/nu12113302] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the first cause of chronic liver disease worldwide; it ranges from simple steatosis to steatohepatitis (NASH) and, potentially, cirrhosis and hepatocarcinoma. NAFLD is also an independent risk factor for type 2 diabetes, cardiovascular diseases, and mortality. As it is largely associated with insulin resistance and related disorders, NAFLD has been recently re-named as Metabolic dysfunction-Associated Fatty Liver Disease (MAFLD). At present, there are no approved pharmacological treatments for this condition. Vitamin D is a molecule with extensive anti-fibrotic, anti-inflammatory, and insulin-sensitizing properties, which have been proven also in hepatic cells and is involved in immune-metabolic pathways within the gut–adipose tissue–liver axis. Epidemiological data support a relationship hypovitaminosis D and the presence of NAFLD and steatohepatitis (NASH); however, results from vitamin D supplementation trials on liver outcomes are controversial. This narrative review provides an overview of the latest evidence on pathophysiological pathways connecting vitamin D to NAFLD, with emphasis on the effects of vitamin D treatment in MAFLD by a nonsystematic literature review of PubMed published clinical trials. This article conforms to the Scale for Assessment of Narrative Review Articles (SANRA) guidelines. Evidence so far available supports the hypothesis of potential benefits of vitamin D supplementation in selected populations of NAFLD patients, as those with shorter disease duration and mild to moderate liver damage.
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Do A, Ilagan-Ying YC, Mehal WZ, Lim JK. Drug development of nonalcoholic fatty liver disease: challenges in research, regulatory pathways, and study endpoints. Expert Opin Drug Discov 2020; 16:125-134. [PMID: 33086894 DOI: 10.1080/17460441.2020.1811674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
INTRODUCTION The growing prevalence of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH), and its association with obesity as a metabolic disease contributes to harmful outcomes and healthcare resource burden worldwide. For this reason, there is an urgent need to develop new therapies. Identification of treatment targets, research design, endpoints definitions and assessments, and supportive regulatory pathways for drug approval all play prominent roles in shaping efforts in drug discovery, investigation, and approval. AREAS COVERED In this perspective, the authors enumerate key challenges of NAFLD clinical research and offer a conceptual framework to address these issues which arise during clinical trials. EXPERT OPINION With the anticipated significant healthcare and costs burden that NAFLD will impose throughout the world, the diagnostics and drug development processes need to be accelerated. Important measures to improve clinical trial research include standardization of case definitions, comprehensive and granular covariate data collection, quality study development incorporating novel trial designs, and quality data reporting. The authors believe that these actions will accelerate understanding, development, and ultimately approval of efficacious treatments.
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Affiliation(s)
- Albert Do
- Section of Digestive Diseases, Department of Internal Medicine, Yale School of Medicine , New Haven, CT, USA
| | | | - Wajahat Z Mehal
- Section of Digestive Diseases, Department of Internal Medicine, Yale School of Medicine , New Haven, CT, USA
| | - Joseph K Lim
- Section of Digestive Diseases, Department of Internal Medicine, Yale School of Medicine , New Haven, CT, USA
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Shiha G, Korenjak M, Eskridge W, Casanovas T, Velez-Moller P, Högström S, Richardson B, Munoz C, Sigurðardóttir S, Coulibaly A, Milan M, Bautista F, Leung NWY, Mooney V, Obekpa S, Bech E, Polavarapu N, Hamed AE, Radiani T, Purwanto E, Bright B, Ali M, Dovia CK, McColaugh L, Koulla Y, Dufour JF, Soliman R, Eslam M. Redefining fatty liver disease: an international patient perspective. Lancet Gastroenterol Hepatol 2020; 6:73-79. [PMID: 33031758 DOI: 10.1016/s2468-1253(20)30294-6] [Citation(s) in RCA: 117] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 08/27/2020] [Accepted: 08/30/2020] [Indexed: 02/06/2023]
Abstract
Despite its increased recognition as a major health threat, fatty liver disease associated with metabolic dysfunction remains largely underdiagnosed and undertreated. An international consensus panel has called for the disease to be renamed from non-alcoholic fatty liver disease (NAFLD) to metabolic-associated fatty liver disease (MAFLD) and has suggested how the disease should be diagnosed. This Viewpoint explores the call from the perspective of patient advocacy groups. Patients are well aware of the negative consequences of the NAFLD acronym. This advocacy group enthusiastically endorses the call to reframe the disease, which we believe will ultimately have a positive effect on patient care and quality of life and, through this effect, will reduce the burden on health-care systems. For patients, policy makers, health planners, donors, and non-hepatologists, the new acronym MAFLD is clear, squarely placing the disease as a manifestation of metabolic dysfunction and improving understanding at a public health and patient level. The authors from representative patient groups are supportive of this change, particularly as the new acronym is meaningful to all citizens as well as governments and policy makers, and, above all, is devoid of any stigma.
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Affiliation(s)
- Gamal Shiha
- European Liver Patients' Association (ELPA), Brussels, Belgium; World Hepatitis Alliance, London, UK; African Liver Patient Association (ALPA), Cairo, Egypt; Association of Liver Patients Care (ALPC), Mansoura, Egypt; Hepatology and Gastroenterology Unit, Internal Medicine Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt; Egyptian Liver Research Institute and Hospital (ELRIAH), Mansoura, Egypt.
| | - Marko Korenjak
- European Liver Patients' Association (ELPA), Brussels, Belgium; Association SLOVENIA HEP, Maribor, Slovenia
| | | | - Teresa Casanovas
- European Liver Patients' Association (ELPA), Brussels, Belgium; Asociación Catalana de Pacientes Hepáticos (ASSCAT), Barcelona, Spain
| | - Patricia Velez-Moller
- World Hepatitis Alliance, London, UK; Guatemala Liver Patients Association, Guatemala City, Guatemala
| | - Sari Högström
- European Liver Patients' Association (ELPA), Brussels, Belgium; Finnish Kidney and Liver Association, Helsinki, Finland
| | | | | | | | - Alioune Coulibaly
- World Hepatitis Alliance, London, UK; African Liver Patient Association (ALPA), Cairo, Egypt; Association for the Promotion of Health and Development in Mali (APSAD/MALI), Bamako, Mali; Association of the Malians of Washington DC (AMAW), Washington DC, USA
| | - Miskovikj Milan
- European Liver Patients' Association (ELPA), Brussels, Belgium; Hepar Centar, Bitola, North Macedonia
| | | | | | - Vicki Mooney
- The European Coalition for People Living with Obesity (EASO ECPO), Dublin, Ireland
| | - Solomon Obekpa
- African Liver Patient Association (ALPA), Cairo, Egypt; Advocacy for the Prevention of Hepatitis in Nigeria (APHIN), Benue State, Nigeria
| | - Eva Bech
- La Federación Nacional de Enfermos y Trasplantados Hepáticos (FNETH), Madrid, Spain
| | | | - Abd Elkhalek Hamed
- Arabic Association for the Study of Diabetes and Metabolism, Cairo, Egypt; Department of Internal Medicine, Hepatology, and Diabetes, Egyptian Military Medical Academy, Cairo, Egypt
| | - Temur Radiani
- European Liver Patients' Association (ELPA), Brussels, Belgium; Hepatitis C Cured Patient Association, Tbilisi, Georgia
| | | | | | - Mohammad Ali
- National Liver Foundation of Bangladesh, Dhaka, Bangladesh
| | - Cecil Kwaku Dovia
- World Hepatitis Alliance, London, UK; African Liver Patient Association (ALPA), Cairo, Egypt; Cedaku Foundation of Ghana, Ho, Ghana
| | | | | | - Jean-François Dufour
- Swiss NASH Foundation, Bern, Switzerland; University Clinic for Visceral Surgery and Medicine, Inselspital, Bern, Switzerland; Department of Biomedical Research, University of Bern, Bern, Switzerland
| | - Reham Soliman
- European Liver Patients' Association (ELPA), Brussels, Belgium; Association of Liver Patients Care (ALPC), Mansoura, Egypt; Egyptian Liver Research Institute and Hospital (ELRIAH), Mansoura, Egypt; Department of Tropical Medicine, Faculty of Medicine, Port Said University, Port Said, Egypt
| | - Mohammed Eslam
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Westmead, NSW, Australia.
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Canbay A, Kachru N, Haas JS, Sowa JP, Meise D, Ozbay AB. Patterns and predictors of mortality and disease progression among patients with non-alcoholic fatty liver disease. Aliment Pharmacol Ther 2020; 52:1185-1194. [PMID: 33016540 DOI: 10.1111/apt.16016] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 05/05/2020] [Accepted: 07/15/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Factors associated with mortality and disease progression in non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) are poorly understood. AIMS To assess the impact of liver disease severity, demographics and comorbidities on all-cause mortality and liver disease progression in a large, real-world cohort of NAFLD patients. METHODS Claims data from the German Institut für angewandte Gesundheitsforschung database between 2011 and 2016 were analyzed retrospectively. Adult patients diagnosed with NAFLD and/or NASH were categorised as NAFLD, NAFLD non-progressors, compensated cirrhosis, decompensated cirrhosis, liver transplant or hepatocellular carcinoma (HCC). The longitudinal probability of mortality and incidence of progression were calculated for disease severity cohorts and multivariable analyses performed for adjusted mortality. RESULTS Among 4 580 434 patients in the database, prevalence of NAFLD was 4.7% (n = 215 655). Of those, 36.8% were non-progressors, 0.2% compensated cirrhosis, 9.6% decompensated cirrhosis, 0.0005% liver transplant and 0.2% HCC. Comorbidity rates were significantly higher in compensated cirrhosis, decompensated cirrhosis and HCC compared with non-progressors. The longitudinal probability of mortality for non-progressors, compensated cirrhosis, decompensated cirrhosis and HCC was 3.6%, 18.7%, 28.8% and 68%, respectively. Independent predictors of mortality included cardiovascular disease, type 2 diabetes mellitus, hypertension, obesity and renal impairment. The cumulative incidence of progression in NAFLD and compensated cirrhosis patients was 10.7% and 16.7%, respectively, over 5 years of follow-up. CONCLUSION NAFLD patients were severely under-diagnosed and had a high probability of mortality that increased with disease progression. Early identification and effective management to halt or reverse fibrosis are essential to prevent progression.
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Affiliation(s)
- Ali Canbay
- Department of Internal Medicine, Ruhr-University, Bochum, Germany
| | - Nandita Kachru
- Health Economics Outcomes Research, Gilead Sciences Inc., Foster City, CA, USA
| | | | - Jan-Peter Sowa
- Department of Internal Medicine, Ruhr-University, Bochum, Germany
| | | | - Ahmet Burak Ozbay
- Health Economics Outcomes Research, Gilead Sciences Inc., Foster City, CA, USA
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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.
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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
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McHenry S, Park Y, Browning JD, Sayuk G, Davidson NO. Dallas Steatosis Index Identifies Patients With Nonalcoholic Fatty Liver Disease. Clin Gastroenterol Hepatol 2020; 18:2073-2080.e7. [PMID: 31982611 PMCID: PMC7913470 DOI: 10.1016/j.cgh.2020.01.020] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 12/27/2019] [Accepted: 01/11/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Tools have been developed to determine risk for nonalcoholic fatty liver disease (NAFLD) based on imaging, which does not always detect early-grade hepatic steatosis. We aimed to develop a tool to identify patients with NAFLD using 1H MR spectroscopy (MRS). METHODS We collected data from the Dallas Heart Study-a multiethnic, population-based, probability study of adults (18-65 y) that comprised an in-home medical survey; collection of fasting blood samples; MRS images to measure cardiac mass/function, abdominal subcutaneous/visceral adiposity; and quantification of hepatic triglyceride concentration, from 2000 through 2009. NAFLD were defined as 5.5% or more liver fat and we excluded patients with more than moderate alcohol use; 737 patients were included in the final analysis. We performed binary multivariable logistic regression analysis to develop a tool to identify patients with NAFLD and evaluate interactions among variables. We performed an internal validation analysis using 10-fold cross validation. RESULTS We developed the Dallas Steatosis Index (DSI) to identify patients with NAFLD based on level of alanine aminotransferase, body mass index, age, sex, levels of triglycerides and glucose, diabetes, hypertension, and ethnicity. The DSI discriminated between patients with vs without NAFLD with a C-statistic of 0.824. The DSI outperformed 4 risk analysis tools, based on net reclassification improvement and decision curve analysis. CONCLUSIONS We developed an index, called the DSI, which accurately identifies patients with NAFLD based on MRS data. The DSI requires external validation, but might be used in development NAFLD screening programs, in monitoring progression of hepatic steatosis, and in epidemiology studies.
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Affiliation(s)
- Scott McHenry
- Division of Gastroenterology, Department of Medicine, Washington University School of Medicine in Saint Louis, St. Louis, Missouri.
| | - Yikyung Park
- Department of Surgery, Division of Public Health Sciences, Washington University in Saint Louis, St. Louis, MO
| | - Jeffrey D. Browning
- Department of Clinical Nutrition, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Gregory Sayuk
- Department of Medicine, Division of Gastroenterology, Washington University in Saint Louis, St. Louis, MO
| | - Nicholas O. Davidson
- Department of Medicine, Division of Gastroenterology, Washington University in Saint Louis, St. Louis, MO
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Cremonini E, Iglesias DE, Kang J, Lombardo GE, Mostofinejad Z, Wang Z, Zhu W, Oteiza PI. (-)-Epicatechin and the comorbidities of obesity. Arch Biochem Biophys 2020; 690:108505. [PMID: 32679195 DOI: 10.1016/j.abb.2020.108505] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/08/2020] [Accepted: 07/10/2020] [Indexed: 02/07/2023]
Abstract
Obesity has major adverse consequences on human health contributing to the development of, among others, insulin resistance and type 2 diabetes, cardiovascular disease, non-alcoholic fatty liver disease, altered behavior and cognition, and cancer. Changes in dietary habits and lifestyle could contribute to mitigate the development and/or progression of these pathologies. This review will discuss current evidence on the beneficial actions of the flavan-3-ol (-)-epicatechin (EC) on obesity-associated comorbidities. These benefits can be in part explained through EC's capacity to mitigate several common events underlying the development of these pathologies, including: i) high circulating levels of glucose, lipids and endotoxins; ii) chronic systemic inflammation; iii) tissue endoplasmic reticulum and oxidative stress; iv) insulin resistance; v) mitochondria dysfunction and vi) dysbiosis. The currently known underlying mechanisms and cellular targets of EC's beneficial effects are discussed. While, there is limited evidence from human studies supplementing with pure EC, other studies involving cocoa supplementation in humans, pure EC in rodents and in vitro studies, support a potential beneficial action of EC on obesity-associated comorbidities. This evidence also stresses the need of further research in the field, which would contribute to the development of human dietary strategies to mitigate the adverse consequences of obesity.
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Affiliation(s)
- Eleonora Cremonini
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Dario E Iglesias
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Jiye Kang
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Giovanni E Lombardo
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA; Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Zahra Mostofinejad
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Ziwei Wang
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Wei Zhu
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA
| | - Patricia I Oteiza
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, CA, USA.
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Sanai FM, Abaalkhail F, Hasan F, Farooqi MH, Nahdi NA, Younossi ZM. Management of nonalcoholic fatty liver disease in the Middle East. World J Gastroenterol 2020; 26:3528-3541. [PMID: 32742124 PMCID: PMC7366060 DOI: 10.3748/wjg.v26.i25.3528] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 05/15/2020] [Accepted: 06/10/2020] [Indexed: 02/06/2023] Open
Abstract
The prevalence of nonalcoholic fatty liver disease (NAFLD) in the Middle East is increasing in parallel to an increase in the prevalence of associated risk factors such as obesity, metabolic syndrome, and type 2 diabetes mellitus. About 20% to 30% of the patients progress to develop nonalcoholic steatohepatitis (NASH), a histological subtype of NAFLD, with features of hepatocyte injury such as hepatocyte ballooning. NASH can progress to fibrosis, cirrhosis, and even hepatocellular carcinoma. NAFLD thus causes a substantial burden on healthcare systems and it is imperative that appropriate strategies are discussed at a regional level to facilitate effective management tailored to the needs of the region. To fulfil this unmet need, expert gastroenterologists, hepatologists, and endocrinologists from the region came together in three advisory board meetings that were conducted in Saudi Arabia, United Arab Emirates, and Kuwait, to discuss current local challenges in NAFLD screening and diagnosis, and the different available management options. The experts discussed the disease burden of NAFLD/NASH in the Middle East; screening, diagnosis, and referral patterns in NAFLD; and available treatment options for NAFLD and NASH. This paper summarizes the discussions and opinion of the expert panel on the management of NAFLD/NASH and also presents an extensive literature review on the topic.
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Affiliation(s)
- Faisal M Sanai
- Gastroenterology Unit, Department of Medicine, King Abdulaziz Medical City, Jeddah 21423, Saudi Arabia
| | - Faisal Abaalkhail
- Department of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
- Department of Liver Transplant, King Fahad Specialist Hospital, Dammam 32253, Saudi Arabia
| | - Fuad Hasan
- Department of Internal Medicine, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait
| | | | - Nawal Al Nahdi
- Department of Gastroenterology and Hepatology, Dubai Health Authority, Rashid hospital, Dubai 00000, United Arab Emirates
| | - Zobair M Younossi
- Department of Medicine, Inova Fairfax Medical Campus, Falls Church, VA 22042, United States
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Ahn SB, Powell EE, Russell A, Hartel G, Irvine KM, Moser C, Valery PC. Type 2 Diabetes: A Risk Factor for Hospital Readmissions and Mortality in Australian Patients With Cirrhosis. Hepatol Commun 2020; 4:1279-1292. [PMID: 32923832 PMCID: PMC7471423 DOI: 10.1002/hep4.1536] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/05/2020] [Accepted: 04/15/2020] [Indexed: 12/23/2022] Open
Abstract
Although there is evidence that type 2 diabetes mellitus (T2D) impacts adversely on liver‐related mortality, its influence on hospital readmissions and development of complications in patients with cirrhosis, particularly in alcohol‐related cirrhosis (the most common etiological factor among Australian hospital admissions for cirrhosis) has not been well studied. This study aimed to investigate the association between T2D and liver cirrhosis in a population‐based cohort of patients admitted for cirrhosis in the state of Queensland, Australia. A retrospective cohort analysis was conducted using data from the Queensland Hospital Admitted Patient Data Collection, which contains information on all hospital episodes of care for patients with liver cirrhosis, and the Death Registry during 2008‐2017. We used demographic, clinical data, and socioeconomic characteristics. A total of 8,631 patients were analyzed. A higher proportion of patients with T2D had cryptogenic cirrhosis (42.4% vs. 27.3%, respectively; P < 0.001) or nonalcoholic fatty liver disease/nonalcoholic steatohepatitis (13.8% vs. 3.4%, respectively; P < 0.001) and an admission for hepatocellular carcinoma (18.0% vs. 12.2%, respectively; P < 0.001) compared to patients without T2D. Patients with liver cirrhosis with T2D compared to those without T2D had a significantly increased median length of hospital stay (6 [range, 1‐11] vs. 5 [range, 1‐11] days, respectively; P < 0.001), double the rate of noncirrhosis‐related admissions (incidence rate ratios [IRR], 2.03; 95% confidence interval [CI], 1.98‐2.07), a 1.35‐fold increased rate of cirrhosis‐related admissions (IRR, 1.35; 95% CI, 1.30‐1.41), and significantly lower survival (P < 0.001). Conclusion: Among hospitalized patients with cirrhosis, the cohort with T2D is at higher risk and may benefit from attention to comorbidities and additional support to reduce readmissions.
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Affiliation(s)
- Sang Bong Ahn
- QIMR Berghofer Medical Research Institute Herston Australia.,Department of Internal Medicine Eulji University School of Medicine Seoul Korea
| | - Elizabeth E Powell
- Centre for Liver Disease Research Translational Research Institute Faculty of Medicine University of Queensland Brisbane Australia.,Department of Gastroenterology and Hepatology Princess Alexandra Hospital Brisbane Australia
| | - Anthony Russell
- Department of Diabetes and Endocrinology University of Queensland Brisbane Australia
| | - Gunter Hartel
- QIMR Berghofer Medical Research Institute Herston Australia
| | - Katharine M Irvine
- Centre for Liver Disease Research Translational Research Institute Faculty of Medicine University of Queensland Brisbane Australia.,Mater Research University of Queensland Brisbane Australia
| | - Chris Moser
- Statistical Services Branch Queensland Health Brisbane Australia
| | - Patricia C Valery
- QIMR Berghofer Medical Research Institute Herston Australia.,Centre for Liver Disease Research Translational Research Institute Faculty of Medicine University of Queensland Brisbane Australia
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Ai L, Luo W, Yuan P, Liu L, Zhou Y. Liver macrophages mediate effects of downhill running and caloric restriction on nonalcoholic fatty liver disease of high fat diet-fed mice. Life Sci 2020; 256:117978. [PMID: 32553927 DOI: 10.1016/j.lfs.2020.117978] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/11/2020] [Accepted: 06/12/2020] [Indexed: 12/20/2022]
Abstract
AIMS The mechanism of physical activity and calorie restriction remedying non-alcoholic fatty liver disease (NAFLD) remains elusive. The purpose of this study is to explore the effects of eccentric exercise and dietary regulation allied or alone on high-fat diet (HFD) induced NAFLD and its potential mechanism. MATERIALS AND METHODS Mice were fed with HFD for 12 weeks and subsequently treated with chronic downhill running and caloric restriction for 8 weeks. Related biochemical index were examined both before and during intervention to evaluate the liver injury and dyslipidemia. Levels of MCP1, TNFα, IL-1β, IL-6 and IL-10 were detected by ELISA. Liver morphology was observed by H&E and oil red O staining. Protein contents of iNOS, Arg-1, IL-1β and IL-10 were determined by Western blot. CD86 and CD206 fluorescence were determined by Immunofluorescence. KEY FINDING: (1) 12 weeks' HFD induced hyperlipemia and hepatic steatosis by activating M1 macrophages phenotype and inhibiting M2 macrophages. (2) Chronic downhill running and caloric restriction promoted liver M2 macrophages phenotype, and inhibited M1 macrophages, to attenuate chronic inflammation and ameliorate hepatic steatosis. (3) The effects of downhill running and dietary regulation allied were more effective on improving NAFLD compared with downhill running or caloric restriction alone. SIGNIFICANCE Eccentric exercise accompanied by caloric restriction attenuates HFD-related NAFLD by promoting M2 macrophages phenotype and inhibiting M1 macrophages in liver. These findings may be help to designing better non-pharmacological intervention programs for NAFLD patients.
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Affiliation(s)
- Lei Ai
- Department of Exercise Physiology, Beijing Sport University, Beijing, China; Jiangsu Research Institute of Sports Science, Nanjing, China
| | - Wei Luo
- Department of Sports and Health Sciences, Nanjing Sport Institute, Nanjing, China
| | - Peng Yuan
- Jiangsu Research Institute of Sports Science, Nanjing, China
| | - Ling Liu
- Jiangsu Research Institute of Sports Science, Nanjing, China
| | - Yue Zhou
- Department of Exercise Physiology, Beijing Sport University, Beijing, China.
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143
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Tomah S, Alkhouri N, Hamdy O. Nonalcoholic fatty liver disease and type 2 diabetes: where do Diabetologists stand? Clin Diabetes Endocrinol 2020; 6:9. [PMID: 32518675 PMCID: PMC7275502 DOI: 10.1186/s40842-020-00097-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/10/2020] [Indexed: 02/08/2023] Open
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide. The increasing prevalence of NAFLD mirrors that of obesity and type 2 diabetes over the last two decades. Main In a two-way pathophysiologic relationship, NAFLD increases the risk of developing type 2 diabetes, while the latter promotes the progression of simple fatty liver to a more advanced form called nonalcoholic steatohepatitis (NASH). NASH increases the risk of cirrhosis and hepatocellular carcinoma (HCC), which may require liver transplantation. With the absence of FDA-approved medications for NAFLD treatment, lifestyle intervention remains the only therapy. Lately, extensive research efforts have been aimed at modifying NASH fibrosis and developing noninvasive screening methods. Conclusion We highlight the pathophysiologic relationships between NAFLD and type 2 diabetes, discuss disease recognition, models of care, and current and emerging therapies for NASH treatment.
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Affiliation(s)
- Shaheen Tomah
- Research Division, Joslin Diabetes Center, 1 Joslin Place, Boston, MA 02215 USA.,Department of Medicine, Harvard Medical School, Boston, MA 02215 USA
| | - Naim Alkhouri
- Texas Liver Institute, University of Texas (UT) Health, San Antonio, TX USA
| | - Osama Hamdy
- Research Division, Joslin Diabetes Center, 1 Joslin Place, Boston, MA 02215 USA.,Department of Medicine, Harvard Medical School, Boston, MA 02215 USA
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144
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Fouad Y, Waked I, Bollipo S, Gomaa A, Ajlouni Y, Attia D. What's in a name? Renaming 'NAFLD' to 'MAFLD'. Liver Int 2020; 40:1254-1261. [PMID: 32301554 DOI: 10.1111/liv.14478] [Citation(s) in RCA: 184] [Impact Index Per Article: 46.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/12/2020] [Accepted: 04/13/2020] [Indexed: 12/13/2022]
Abstract
In medicine, language matters and the words used to name and describe a disease can have a profound impact on patients and their families. Over the last two decades, many criticisms have been voiced about the nomenclature and definition of non-alcoholic fatty liver disease (NAFLD) in regards not only to the prominent role that alcohol plays in the definition but also on the negative impacts of the nomenclature including trivialization, stigmatization and less consideration of the disease in health policy. Recently, a consensus of international experts proposed that the disease acronym be changed from NAFLD to metabolic (dysfunction) associated fatty liver disease or 'MAFLD'. This change goes far beyond a mere semantic revision and may be the first step that catalyses the process to better conceptualize the disease for health promotion, patient orientation, case identification, ongoing clinical trials and for health services delivery. Here we review the history of, and definitions of MAFLD in the context of advancing our understanding of the pathogenesis of the disease. We also address the reasons, signals, promises, challenges and the way going forward from the name change from various stakeholder perspectives.
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Affiliation(s)
- Yasser Fouad
- Department of Gastroenterology, Hepatology and Endemic Medicine, Faculty of Medicine, Minia University Hospitals, Minya, Egypt
| | - Imam Waked
- Hepatology Department National Liver Institute, Menoufia University, Shebeen El Kom, Egypt
| | - Steven Bollipo
- Department of Gastroenterology and Endoscopy, John Hunter Hospital, Newcastle, NSW, Australia.,School of Medicine and Public Health, University of Newcastle, Newcastle, NSW, Australia
| | - Ahmed Gomaa
- Department of Hepatology, Gastroenterology and Endemic Medicine, Faculty of Medicine, Fayoum University, Fayoum, Egypt
| | - Yousef Ajlouni
- Gastroenterology and Hepatology Departement, King Hussein Medical Center, Amman, Jordan
| | - Dina Attia
- Department of Hepatology, Gastroenterology and Endemic Medicine, Faculty of Medicine, Beni-Suef University, Beni-suef, Egypt
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145
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Pattison RJ, Esteban JP, Sempokuya T, Kewcharoen J, Kalathil S, Kuwada SK. Nonalcoholic Fatty Liver Disease: An Important Consideration for Primary Care Providers in Hawai'i. HAWAI'I JOURNAL OF HEALTH & SOCIAL WELFARE 2020; 79:180-186. [PMID: 32524096 PMCID: PMC7281344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease worldwide. NAFLD is a broad term for both non-alcoholic fatty liver (NAFL), which describes simple fatty liver without inflammation, and non-alcoholic steatohepatitis (NASH), the more severe phenotype with hepatocellular inflammation. The population of Hawai'i is particularly vulnerable to the NAFLD and obesity epidemics due to its large proportions of high-risk ethnic minorities exposed to varying degrees of westernization. Unfortunately, primary care providers (PCPs) often face a lack of awareness on the diagnosis and disease spectrum of NAFLD. Early initiation of treatment for NAFLD is crucial to slow its progression and prevent liver-related morbidity and mortality. This review aims to raise awareness for NAFLD among PCPs in Hawai'i by summarizing the disease's epidemiology, diagnosis, and treatment. The diagnostic workup of NAFLD in the primary care setting involves exclusion of other liver disease etiologies and staging assessment of fibrosis and steatosis through non-invasive means such as serum biomarkers or elastography. Patients with overt signs and symptoms of cirrhosis or a high likelihood of advanced hepatic fibrosis should be referred to liver disease specialists. The role of PCPs in NAFLD management involves facilitating weight loss through therapeutic lifestyle modifications and treatment of comorbid cardiovascular conditions. Evidence-based pharmacologic therapies for NAFLD are available, such as vitamin E and pioglitazone, with more currently in development.
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Affiliation(s)
- Robert J. Pattison
- Internal Medicine Residency Program, John A. Burns School of Medicine University of Hawai‘i, Honolulu, HI (RJP, JK)
| | | | | | - Jakrin Kewcharoen
- Internal Medicine Residency Program, John A. Burns School of Medicine University of Hawai‘i, Honolulu, HI (RJP, JK)
| | | | - Scott K. Kuwada
- John A. Burns School of Medicine University of Hawai‘i, Honolulu, HI (SKK)
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146
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Lovestone S. The European medical information framework: A novel ecosystem for sharing healthcare data across Europe. Learn Health Syst 2020; 4:e10214. [PMID: 32313838 PMCID: PMC7156868 DOI: 10.1002/lrh2.10214] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 11/27/2019] [Accepted: 11/29/2019] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION The European medical information framework (EMIF) was an Innovative Medicines Initiative project jointly supported by the European Union and the European Federation of Pharmaceutical Industries and Associations, that generated a common technology and governance framework to identify, assess and (re)use healthcare data, to facilitate real-world data research. The objectives of EMIF included providing a unified platform to support a wide range of studies within two verification programmes-Alzheimer's disease (EMIF-AD), and metabolic consequences of obesity (EMIF-MET). METHODS The EMIF platform was built around two main data-types: electronic health record data and research cohort data, and the platform architecture composed of a set of tools designed to enable data discovery and characterisation. This included the EMIF catalogue, which allowed users to find relevant data sources, including the data-types collected. Data harmonisation via a common data model were central to the project especially for population data sources. EMIF also developed an ethical code of practice to ensure data protection, patient confidentiality and compliance with the European Data Protection Directive, and GDPR. RESULTS Currently 18 population-based disease agnostic and 60 cohort-based Alzheimer's data partners from across 14 countries are contained within the catalogue, and this will continue to expand. The work conducted in EMIF-AD and EMIF-MET includes standardizing cohorts, summarising baseline characteristics of patients, developing diagnostic algorithms, epidemiological studies, identifying and validating novel biomarkers and selecting potential patient samples for pharmacological intervention. CONCLUSIONS EMIF was designed to provide a sustainable model as demonstrated by the sustainability plans for EMIF-AD. Although network-wide studies using EMIF were not conducted during this project to evaluate its sustainability, learning from EMIF will be used in the follow-on IMI-2 project, European Health Data and Evidence Network (EHDEN). Furthermore, EMIF has facilitated collaborations between partners and continues to promote a wider adoption of principles, technology and architecture through some of its continued work.
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Affiliation(s)
- Simon Lovestone
- Neurodegeneration, Janssen R&D, Janssen Pharmaceutica, Beerse, Belgium
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147
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Maev IV, Samsonov AA, Palgova LK, Pavlov CS, Shirokova EN, Vovk EI, Starostin KM. Effectiveness of phosphatidylcholine as adjunctive therapy in improving liver function tests in patients with non-alcoholic fatty liver disease and metabolic comorbidities: real-life observational study from Russia. BMJ Open Gastroenterol 2020; 7:e000368. [PMID: 32337059 PMCID: PMC7170405 DOI: 10.1136/bmjgast-2019-000368] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 03/02/2020] [Accepted: 03/03/2020] [Indexed: 12/13/2022] Open
Abstract
Objective Non-alcoholic fatty liver disease (NAFLD) is the most common cause of abnormal results of liver function tests. Earlier research showed that polyenylphosphatidylcholine (PPC) has hepatoprotective effects and thus can be used for the treatment of NAFLD and the prevention of its progression. Accordingly, the aim of this observational study was to evaluate if PPC administered as adjunctive therapy in routine clinical practice can effectively improve liver function tests of NAFLD in Russian patients with associated metabolic comorbidities. Design A total of 2843 adult patients with newly diagnosed NAFLD, who had a least one of four comorbidities, namely, overweight/obesity, hypertension, type 2 diabetes mellitus, and hypercholesterolaemia, and who were prescribed 1.8 g/day of PPC as an adjunctive treatment to standard care, were enrolled during 2015-2016. Laboratory data were collected at baseline and 12 and 24 weeks of the study, and included liver function tests (aspartate aminotransferase (AST), alanine aminotransferase (ALT), gamma-glutamyl transferase (GGT)), fasting plasma glucose, and lipid profile. Results Overall, 2263 patients (79.6%) had at least two metabolic comorbidities associated with NAFLD, and overweight/obesity was the most common comorbidity reported in 2298 (80.8%) patients. At 24 weeks, there was a significant decrease in liver enzyme levels (all p<0.001 compared with baseline). Across the four comorbidity subgroups, there was a mean drop of ALT levels ranging from 19.7 to 22.0 U/L, AST from 16.9 to 18.4 U/L, and GGT from 17.2 to 18.7 U/L. Similar findings were reported in subgroups with either one, two, three, or four comorbidities, with a significant decrease in liver enzyme levels ranging from 18.4 to 22.4 U/L for ALT, 14.8 to 18.7 U/L for AST, and 15.5 to 19.5 U/L for GGT. Conclusions Adjuvant treatment with PPC resulted in consistent improvements in liver enzymes in patients with newly diagnosed NAFLD and associated metabolic comorbidities. Trial registration number NCT00063622.
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Affiliation(s)
- Igor V Maev
- AI Evdokimov Moscow State University of Medicine and Dentistry, Ministry of Health of Russia, Moscow, Russian Federation
| | - Aleksey A Samsonov
- AI Evdokimov Moscow State University of Medicine and Dentistry, Ministry of Health of Russia, Moscow, Russian Federation
| | - Liudmila K Palgova
- Clinical Research and Educational Center in Gastroenterology and Hepatology, Saint Petersburg State University, Saint-Petersburg, Russian Federation
| | - Chavdar S Pavlov
- IM Sechenov First Moscow State Medical University, Ministry of Health of Russia, Moscow, Russian Federation
| | - Elena N Shirokova
- IM Sechenov First Moscow State Medical University, Ministry of Health of Russia, Moscow, Russian Federation
| | - Elena I Vovk
- AI Evdokimov Moscow State University of Medicine and Dentistry, Ministry of Health of Russia, Moscow, Russian Federation
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148
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Unalp-Arida A, Ruhl CE. Patatin-Like Phospholipase Domain-Containing Protein 3 I148M and Liver Fat and Fibrosis Scores Predict Liver Disease Mortality in the U.S. Population. Hepatology 2020; 71:820-834. [PMID: 31705824 DOI: 10.1002/hep.31032] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Accepted: 11/03/2019] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS Fatty liver causes premature death worldwide and requires long-term health care. We examined relationships of liver disease markers, including patatin-like phospholipase domain-containing protein 3 (PNPLA3) I148M, with mortality in the U.S. National Health and Nutrition Examination Survey, 1988-1994, with 27 years of linked mortality data. APPROACH AND RESULTS We studied 13,298 viral hepatitis negative adults who fasted at least 4 hours using the nonalcoholic fatty liver disease (NAFLD) liver fat score and NAFLD fibrosis score. PNPLA3 I148M was genotyped in a subgroup of participants from 1991 to 1994 (n = 5,640). Participants were passively followed for mortality, identified by death certificate underlying or contributing causes, by linkage to the National Death Index through 2015. During follow-up (median, 23.2 years), cumulative mortality was 33.2% overall and 1.1% with liver disease, including primary liver cancer. Increased liver disease mortality was associated with PNPLA3 I148M (hazard ratio [HR], 2.9; 95% confidence interval [CI], 0.9-9.8) and 148M genotypes (HR, 18.2; 95% CI, 3.5-93.8), an intermediate (HR, 3.8; 95% CI, 1.3-10.7) or high (HR, 12.6; 95% CI, 4.3-36.3) NAFLD liver fat score, and a high NAFLD fibrosis score (HR, 12.2; 95% CI, 1.9-80.6) adjusted for risk factors. Survival curves suggest that increased mortality risk with two 148M alleles was greatest beginning in the second decade of follow-up. Overall, but not cardiovascular disease, mortality was associated with the PNPLA3 148M allele, and both mortality outcomes were associated with higher fat and fibrosis scores. CONCLUSIONS In the U.S. population, PNPLA3 I148M and higher NAFLD liver fat and fibrosis scores were associated with increased liver disease mortality. Genetic variant PNPLA3 I148M may complement other liver disease markers for NAFLD surveillance.
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Affiliation(s)
- Aynur Unalp-Arida
- Department of Health and Human Services, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD
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149
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Lazarus JV, Ekstedt M, Marchesini G, Mullen J, Novak K, Pericàs JM, Roel E, Romero-Gómez M, Ratziu V, Tacke F, Cortez-Pinto H, Anstee QM. A cross-sectional study of the public health response to non-alcoholic fatty liver disease in Europe. J Hepatol 2020; 72:14-24. [PMID: 31518646 DOI: 10.1016/j.jhep.2019.08.027] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/12/2019] [Accepted: 08/29/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND & AIMS Non-alcoholic fatty liver disease (NAFLD) is a growing public health problem worldwide and has become an important field of biomedical inquiry. We aimed to determine whether European countries have mounted an adequate public health response to NAFLD and non-alcoholic steatohepatitis (NASH). METHODS In 2018 and 2019, NAFLD experts in 29 European countries completed an English-language survey on policies, guidelines, awareness, monitoring, diagnosis and clinical assessment in their country. The data were compiled, quality checked against existing official documents and reported descriptively. RESULTS None of the 29 participating countries had written strategies or action plans for NAFLD. Two countries (7%) had mentions of NAFLD or NASH in related existing strategies (obesity and alcohol). Ten (34%) reported having national clinical guidelines specifically addressing NAFLD and, upon diagnosis, all included recommendations for the assessment of diabetes and liver cirrhosis. Eleven countries (38%) recommended screening for NAFLD in all patients with either diabetes, obesity and/or metabolic syndrome. Five countries (17%) had referral algorithms for follow-up and specialist referral in primary care, and 7 (24%) reported structured lifestyle programmes aimed at NAFLD. Seven (24%) had funded awareness campaigns that specifically included prevention of liver disease. Four countries (14%) reported having civil society groups which address NAFLD and 3 countries (10%) had national registries that include NAFLD. CONCLUSIONS We found that a comprehensive public health response to NAFLD is lacking in the surveyed European countries. This includes policy in the form of a strategy, clinical guidelines, awareness campaigns, civil society involvement, and health systems organisation, including registries. LAY SUMMARY We conducted a survey on non-alcoholic fatty liver disease with experts in European countries, coupled with data extracted from official documents on policies, clinical guidelines, awareness, and monitoring. We found a general lack of national policies, awareness campaigns and civil society involvement, and few epidemiological registries.
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Affiliation(s)
- Jeffrey V Lazarus
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Spain.
| | - Mattias Ekstedt
- Department of Gastroenterology and Hepatology. Department of Medical and Health Sciences, Linköping University, Linköping, Sweden
| | - Giulio Marchesini
- Department of Medical & Surgical Sciences, "Alma Mater" University, Bologna, Italy
| | - Jillian Mullen
- EASL International Liver Foundation, Geneva, Switzerland
| | - Katja Novak
- University Medical Center Ljubljana, Dept. of Gastroenterology, Slovenia
| | - Juan M Pericàs
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Spain; Translational Research Group on Infectious Diseases of Lleida (TRIDLE), Infectious Diseases Clinical Direction, Biomedical Research Institute Dr Pifarré, University of Lleida, Lleida, Spain
| | - Elena Roel
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Spain; Preventive Medicine and Epidemiology, Hospital Clínic, Barcelona, Spain
| | - Manuel Romero-Gómez
- UCM Digestive Diseases, ciberehd and IBIS, Virgen del Rocío University Hospital, University of Seville, Seville, Spain
| | - Vlad Ratziu
- Pitie-Salpetriere Hospital, Department of Hepatology University Paris 6, France
| | - Frank Tacke
- Department of Hepatology/Gastroenterology, Charité University Medical Center, Berlin, Germany
| | - Helena Cortez-Pinto
- Departamento de Gastrenterologia, CHLN, Clínica Universitária de Gastrenterologia, Laboratório de Nutrição, Faculdade de Medicina, Universidade de Lisboa, Portugal
| | - Quentin M Anstee
- Institute of Cellular Medicine, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom; The Liver Unit & NIHR Biomedical Research Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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150
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Alexander M, Loomis AK, van der Lei J, Duarte-Salles T, Prieto-Alhambra D, Ansell D, Pasqua A, Lapi F, Rijnbeek P, Mosseveld M, Avillach P, Egger P, Dhalwani NN, Kendrick S, Celis-Morales C, Waterworth DM, Alazawi W, Sattar N. Non-alcoholic fatty liver disease and risk of incident acute myocardial infarction and stroke: findings from matched cohort study of 18 million European adults. BMJ 2019; 367:l5367. [PMID: 31594780 PMCID: PMC6780322 DOI: 10.1136/bmj.l5367] [Citation(s) in RCA: 151] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/20/2019] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To estimate the risk of acute myocardial infarction (AMI) or stroke in adults with non-alcoholic fatty liver disease (NAFLD) or non-alcoholic steatohepatitis (NASH). DESIGN Matched cohort study. SETTING Population based, electronic primary healthcare databases before 31 December 2015 from four European countries: Italy (n=1 542 672), Netherlands (n=2 225 925), Spain (n=5 488 397), and UK (n=12 695 046). PARTICIPANTS 120 795 adults with a recorded diagnosis of NAFLD or NASH and no other liver diseases, matched at time of NAFLD diagnosis (index date) by age, sex, practice site, and visit, recorded at six months before or after the date of diagnosis, with up to 100 patients without NAFLD or NASH in the same database. MAIN OUTCOME MEASURES Primary outcome was incident fatal or non-fatal AMI and ischaemic or unspecified stroke. Hazard ratios were estimated using Cox models and pooled across databases by random effect meta-analyses. RESULTS 120 795 patients with recorded NAFLD or NASH diagnoses were identified with mean follow-up 2.1-5.5 years. After adjustment for age and smoking the pooled hazard ratio for AMI was 1.17 (95% confidence interval 1.05 to 1.30; 1035 events in participants with NAFLD or NASH, 67 823 in matched controls). In a group with more complete data on risk factors (86 098 NAFLD and 4 664 988 matched controls), the hazard ratio for AMI after adjustment for systolic blood pressure, type 2 diabetes, total cholesterol level, statin use, and hypertension was 1.01 (0.91 to 1.12; 747 events in participants with NAFLD or NASH, 37 462 in matched controls). After adjustment for age and smoking status the pooled hazard ratio for stroke was 1.18 (1.11 to 1.24; 2187 events in participants with NAFLD or NASH, 134 001 in matched controls). In the group with more complete data on risk factors, the hazard ratio for stroke was 1.04 (0.99 to 1.09; 1666 events in participants with NAFLD, 83 882 in matched controls) after further adjustment for type 2 diabetes, systolic blood pressure, total cholesterol level, statin use, and hypertension. CONCLUSIONS The diagnosis of NAFLD in current routine care of 17.7 million patient appears not to be associated with AMI or stroke risk after adjustment for established cardiovascular risk factors. Cardiovascular risk assessment in adults with a diagnosis of NAFLD is important but should be done in the same way as for the general population.
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Affiliation(s)
- Myriam Alexander
- Real World Evidence and Epidemiology, GlaxoSmithKline, Uxbridge, Middlesex, UK
| | - A Katrina Loomis
- Worldwide Research and Development, Pfizer, Target Sciences, Groton, CT, USA
| | - Johan van der Lei
- Department of Medical Informatics, Erasmus University Medical Centre Rotterdam, Rotterdam, Netherlands
| | - Talita Duarte-Salles
- Fundació Institut Universitari per a la recerca a l'Atenció Primària de Salut Jordi Gol i Gurina (IDIAPJGol), Barcelona, Spain
| | - Daniel Prieto-Alhambra
- Pharmaco- and Device Epidemiology, Centre for Statistics in Medicine, NDORMS, University of Oxford, Oxford, UK
| | - David Ansell
- IQVIA, Kings Cross, London, UK
- Institute of Applied Health Research, University of Birmingham, Birmingham, UK
| | - Alessandro Pasqua
- Health Search, Italian College of General Practitioners and Primary Care, Firenze, Italy
| | - Francesco Lapi
- Health Search, Italian College of General Practitioners and Primary Care, Firenze, Italy
| | - Peter Rijnbeek
- Department of Medical Informatics, Erasmus University Medical Centre Rotterdam, Rotterdam, Netherlands
| | - Mees Mosseveld
- Department of Medical Informatics, Erasmus University Medical Centre Rotterdam, Rotterdam, Netherlands
| | - Paul Avillach
- Department of Medical Informatics, Erasmus University Medical Centre Rotterdam, Rotterdam, Netherlands
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA, USA
| | - Peter Egger
- Real World Evidence and Epidemiology, GlaxoSmithKline, Uxbridge, Middlesex, UK
| | | | - Stuart Kendrick
- GlaxoSmithKline, Medicines Research Centre, Stevenage, Hertfordshire, UK
| | - Carlos Celis-Morales
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow G12 8TA, UK
| | | | - William Alazawi
- Barts Liver Centre, Blizard Institute, Queen Mary, University of London, London, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Sciences, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, Glasgow G12 8TA, UK
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