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Translational insight into prothrombotic state and hypercoagulation in nonalcoholic fatty liver disease. Thromb Res 2020; 198:139-150. [PMID: 33340925 DOI: 10.1016/j.thromres.2020.12.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/17/2020] [Accepted: 12/07/2020] [Indexed: 02/08/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is an emerging and threatening pathological condition, ranging from fatty liver (FL) to chronic steatohepatitis (NASH), liver cirrhosis, and eventually to hepatocellular carcinoma (HCC). Recent findings suggest that patients with NAFLD have a higher risk of cardiovascular events and thromboembolism and that this risk is independent of metabolic diseases that are frequently associated with NAFLD, such as diabetes, hyperlipidaemia, and obesity. The vascular involvement of NAFLD might be considered its systemic burden, conditioning higher mortality in patients affected by the disease. These clinical findings suggested the existence of a prothrombotic state in NAFLD, which is partially unexplored and whose underlying mechanisms are to date not completely understood. Here, we review the mechanisms involved in the pathogenesis of the prothrombotic state in NAFLD across the progression from the healthy liver through the different stages of the disease. We focused on the possible role of several metabolic features of NAFLD possibly leading to hypercoagulation other than endothelial and platelet activation, such as insulin-resistance, nitric oxide production regulation, and gut microbiota homeostasis. Also, we analysed the involvement of plasminogen activator inhibitor-1 (PAI-1) and thromboinflammation taking place in NAFLD. Finally, we described factors striking a prothrombotic imbalance in NASH cirrhosis, with a particular focus on the pathogenesis of portal vein thrombosis.
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Izzy M, Angirekula M, Abu Dayyeh BK, Bazerbachi F, Watt KD. Bariatric surgery proves long-term benefit in patients with cirrhosis. Gastroenterol Rep (Oxf) 2020; 9:252-256. [PMID: 34316375 PMCID: PMC8309677 DOI: 10.1093/gastro/goaa057] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/12/2020] [Accepted: 07/22/2020] [Indexed: 12/15/2022] Open
Abstract
Background Obesity is commonly observed in patients with cirrhosis, especially with the increasing prevalence of non-alcoholic steatohepatitis (NASH). Bariatric surgery has been avoided in these patients given concerns about increased perioperative risk; therefore, data are lacking regarding long-term outcomes. In this study, we aimed to evaluate the long-term outcomes of patients with cirrhosis who underwent bariatric surgery. Methods We reviewed the charts of adult patients with compensated cirrhosis who underwent bariatric surgery after they were prospectively enrolled between February 23, 2009 and November 9, 2011, and followed in a pilot study for evaluation of bariatric surgery outcomes. Only patients with more than 4 years of follow-up were included in the analysis. Data regarding their liver disease, metabolic status, and survival were collected. A descriptive analysis was performed. Results The cohort consisted of 10 patients, of whom 7 were females. The median post-surgical follow-up was 8.7 years (± 1.4 years). All patients had biopsy-proven NASH; two patients had concurrent, untreated hepatitis C infection. During the observation period, there was a mean weight loss of 24 kg (19.2% of total body weight pre surgery, P < 0.001) and only one patient regained weight to the baseline pre-surgical measurement. One patient who was not eligible for transplant developed hepatic encephalopathy 3 years after surgery and later died. The remainder of the patients did not have any hepatic decompensation, cardiovascular event, or mortality. Except for one patient with Gilbert syndrome, bilirubin was normal in all patients at last follow-up. Conclusions Bariatric surgery in patients with compensated cirrhosis can lead to sustained weight loss and stable hepatic function on long-term follow-up.
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Affiliation(s)
- Manhal Izzy
- Division of Gastroenterology, Hepatology, and Nutrition, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Mounika Angirekula
- Division of Gastroenterology and Hepatology, Mayo Clinic and Foundation, Rochester, MN, USA
| | - Barham K Abu Dayyeh
- Division of Gastroenterology and Hepatology, Mayo Clinic and Foundation, Rochester, MN, USA
| | - Fateh Bazerbachi
- Division of Gastroenterology, Massachusetts General Hospital, Boston, MA, USA
| | - Kymberly D Watt
- Division of Gastroenterology and Hepatology, Mayo Clinic and Foundation, Rochester, MN, USA
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Marti-Aguado D, Rodríguez-Ortega A, Alberich-Bayarri A, Marti-Bonmati L. Magnetic Resonance imaging analysis of liver fibrosis and inflammation: overwhelming gray zones restrict clinical use. Abdom Radiol (NY) 2020; 45:3557-3568. [PMID: 32857259 DOI: 10.1007/s00261-020-02713-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 07/30/2020] [Accepted: 08/18/2020] [Indexed: 12/13/2022]
Abstract
Magnetic resonance (MR) identification and grading of subjects with liver fibrosis and inflammation represents a clinical challenge. MR elastography plays a well-defined role in fibrosis estimation, but its use is not widely available in clinical settings. Given that liver MR is becoming the reference standard for fat and iron quantitation, there is a need to clarify whether there is any role for MR imaging in the concomitant evaluation of fibrosis and inflammation in this setting. This review summarizes the diagnostic estimations of different MR imaging parameters obtained from conventional non-contrast-enhanced multiple b values diffusion-weighted acquisitions, variable flip angles T1 relaxation maps and STIR images. Although some derived parameters have shown a significant correlation to histological scores, a small magnitude of effect with wide overlap across severity grades is the rule. Contrary to fat and iron quantification, the low precision and reproducibility of MR imaging metrics limits its clinical relevance in fibrosis and inflammation assessment. In a sequential clinical approach combining different methodologies, MR imaging has no applicability for ruling-out and low accuracy for ruling-in advanced fibrosis. Thereby, MR elastography remains as the only image method with high diagnostic accuracy for the detection of advanced fibrosis. Until date, inflammation remains in a gray zone where biopsy cannot be replaced, and further investigations are needed. The present review offers an in-depth discuss of the MR imaging diagnostic performance for the evaluation of liver fibrosis and inflammation, highlighting the need for scientific improvements.
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Affiliation(s)
- D Marti-Aguado
- Department of Gastroenterology and Hepatology, Clinic University Hospital, INCLIVA Health Research Institute, Valencia, Spain
- Biomedical Imaging Research Group (GIBI230 and PREBI), and Imaging La Fe Node at Distributed Network for Biomedical Imaging (ReDIB) Unique Scientific and Technical Infrastructures (ICTS), La Fe Health Research Institute, Valencia, Spain
| | - A Rodríguez-Ortega
- Biomedical Imaging Research Group (GIBI230 and PREBI), and Imaging La Fe Node at Distributed Network for Biomedical Imaging (ReDIB) Unique Scientific and Technical Infrastructures (ICTS), La Fe Health Research Institute, Valencia, Spain
| | - A Alberich-Bayarri
- Biomedical Imaging Research Group (GIBI230 and PREBI), and Imaging La Fe Node at Distributed Network for Biomedical Imaging (ReDIB) Unique Scientific and Technical Infrastructures (ICTS), La Fe Health Research Institute, Valencia, Spain
- Quantitative Imaging Biomarkers in Medicine, QUIBIM SL, Valencia, Spain
| | - L Marti-Bonmati
- Biomedical Imaging Research Group (GIBI230 and PREBI), and Imaging La Fe Node at Distributed Network for Biomedical Imaging (ReDIB) Unique Scientific and Technical Infrastructures (ICTS), La Fe Health Research Institute, Valencia, Spain.
- Radiology Department, La Fe University and Polytechnic Hospital, Av Fernando Abril Martorell 106, 46026, Valencia, Spain.
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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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Majumdar A, Tsochatzis EA. Changing trends of liver transplantation and mortality from non-alcoholic fatty liver disease. Metabolism 2020; 111S:154291. [PMID: 32531295 DOI: 10.1016/j.metabol.2020.154291] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 05/18/2020] [Accepted: 06/08/2020] [Indexed: 02/06/2023]
Abstract
The rising tide of non-alcoholic fatty liver disease (NAFLD) associated with the obesity epidemic is a major international health concern. NAFLD is the leading global cause of liver disease with an estimated prevalence of 25% and is the fastest growing indication for liver transplantation (LT). The presence and severity of liver fibrosis is the only histologic predictor of clinical outcomes in this group. NAFLD poses several challenges in the peri-transplant setting including the management of multiple metabolic co-morbidities, post-transplant obesity and cardiovascular risk. However, post-LT outcomes in well-selected NAFLD patients appear similar to non-NAFLD indications, including in the setting of hepatocellular carcinoma (HCC). The rising prevalence of NAFLD may impact potential liver graft donors, which may in-turn adversely affect post-LT outcomes. This review outlines the current epidemiology, natural history and outcomes of NAFLD with a focus on pre- and post-liver transplant settings.
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Affiliation(s)
- Avik Majumdar
- AW Morrow Gastroenterology and Liver Centre, Australian National Liver Transplant Unit, Royal Prince Alfred Hospital, Sydney, Australia; Central Clinical School, The University of Sydney, Australia
| | - Emmanuel A Tsochatzis
- UCL Institute for Liver and Digestive Health, Royal Free Hospital and UCL, London, UK; Sheila Sherlock Liver Centre, Royal Free Hospital, London, UK.
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Natarajan Y, Kramer JR, Yu X, Li L, Thrift AP, El-Serag HB, Kanwal F. Risk of Cirrhosis and Hepatocellular Cancer in Patients With NAFLD and Normal Liver Enzymes. Hepatology 2020; 72:1242-1252. [PMID: 32022277 PMCID: PMC8318072 DOI: 10.1002/hep.31157] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 01/16/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS The long-term risk of disease for patients with nonalcoholic fatty liver disease (NAFLD) in the absence of elevated enzymes is unclear. We conducted a retrospective cohort study using the Corporate Data Warehouse of the Veterans Health Administration. APPROACH AND RESULTS We classified patients into three groups: patients with steatosis/normal alanine aminotransferase (ALT), steatosis/elevated ALT, and no steatosis/normal ALT. We examined incidence rates for cirrhosis and hepatocellular carcinoma (HCC) and conducted cause-specific hazard models to evaluate the risk of cirrhosis and HCC. We identified 3,522 patients with steatosis/normal ALT, 15,419 patients with steatosis/elevated ALT, and 9,267 patients with no steatosis/normal ALT. The mean age in each group was 58.9, 54.7 and 59.3 years, respectively; over 90% were men. Compared to patients with hepatic steatosis/normal ALT, those with steatosis/elevated ALT were younger and more likely to be obese (both P < 0.01). In patients with steatosis/normal ALT, the incidence rates of cirrhosis and HCC were 1.22 (95% confidence interval [CI]: 0.83-1.74) and 0.20 (95% CI: 0.06-0.46) per 1,000 person-years, respectively; this was lower than in patients with steatosis/elevated ALT (cirrhosis: 3.85; 95% CI: 3.50-4.23, and HCC: 0.37; 95% CI: 0.26-0.49). Patients with steatosis/elevated ALT had a higher risk of developing cirrhosis (adjusted hazard ratio: 3.37; 95% CI: 2.34-4.86; P < 0.01) than patients with steatosis/normal ALT; they also had a higher risk of HCC, although it did not reach statistical significance (hazard ratio: 2.07; 95% CI: 0.82-5.28; P = 0.13). The risk of cirrhosis and HCC in patients with steatosis/normal ALT and those without steatosis was not significantly different. CONCLUSIONS Patients with hepatic steatosis with persistently normal ALT are at lower risk for cirrhosis compared to those with steatosis and elevated ALT and not different from the risk in a clinical cohort without hepatic steatosis.
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Affiliation(s)
- Yamini Natarajan
- Section of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, TX
| | - Jennifer R. Kramer
- Clinical Epidemiology and Comparative Effectiveness Program, Section of Health Services Research (IQuESt), Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, TX
| | - Xian Yu
- Clinical Epidemiology and Comparative Effectiveness Program, Section of Health Services Research (IQuESt), Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, TX
| | - Liang Li
- Department of Biostatistics, University of Texas MD Anderson Cancer Center, Houston, TX
| | - Aaron P. Thrift
- Section of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, TX;,Dan L Duncan Comprehensive Cancer Center at Baylor College of Medicine, Houston, TX;,Section of Epidemiology and Population Sciences, Baylor College of Medicine, Houston, TX
| | - Hashem B. El-Serag
- Section of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, TX;,Clinical Epidemiology and Comparative Effectiveness Program, Section of Health Services Research (IQuESt), Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, TX;,Dan L Duncan Comprehensive Cancer Center at Baylor College of Medicine, Houston, TX;,Texas Medical Center Digestive Disease Center, Houston, TX
| | - Fasiha Kanwal
- Section of Gastroenterology and Hepatology, Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, TX;,Clinical Epidemiology and Comparative Effectiveness Program, Section of Health Services Research (IQuESt), Michael E. DeBakey VA Medical Center and Baylor College of Medicine, Houston, TX;,Dan L Duncan Comprehensive Cancer Center at Baylor College of Medicine, Houston, TX;,Texas Medical Center Digestive Disease Center, Houston, TX
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Adams LA, Roberts SK, Strasser SI, Mahady SE, Powell E, Estes C, Razavi H, George J. Nonalcoholic fatty liver disease burden: Australia, 2019-2030. J Gastroenterol Hepatol 2020; 35:1628-1635. [PMID: 32048317 PMCID: PMC7540570 DOI: 10.1111/jgh.15009] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Accepted: 02/02/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIM Nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) account for a large and growing proportion of liver disease burden globally. The burden of NAFLD/NASH manifests in increasing levels of advanced liver disease and primary liver cancer in Australia. A Markov model was used to forecast NAFLD burden in Australia through 2030. METHODS A model was used to estimate fibrosis progression, primary liver cancer, and liver deaths among the Australian NAFLD population, with changes in incident NAFLD cases based on long-term trends for changes in the prevalence of obesity. Published estimates and surveillance data were applied to build and validate the model projections, including surveillance data for the incidence of liver cancer. RESULTS Prevalent NAFLD cases were projected to increase 25% from the current burden (5 551 000 [4 748 000-6 306 000] cases in 2019) to 7 024 000 [5 838 000-7 886 000] cases in 2030. The projected increase in the number of NASH cases (40%) was greater than that of NAFLD cases. Incident cases of advanced liver disease are projected to increase up to 85% by 2030, and incident NAFLD liver deaths are estimated to increase 85% from 1900 (1100-3300) deaths in 2019 to 3500 (2100-6100) deaths in 2030. CONCLUSIONS Restraining growth of the obese and diabetic populations, along with potential therapeutic options, will be essential for mitigating disease burden.
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Affiliation(s)
- Leon A Adams
- Medical SchoolThe University of Western AustraliaPerthWestern AustraliaAustralia
| | - Stuart K Roberts
- Department of GastroenterologyThe AlfredMelbourneVictoriaAustralia
| | - Simone I Strasser
- AW Morrow Gastroenterology and Liver CentreRoyal Prince Alfred HospitalSydneyNew South WalesAustralia
| | - Suzanne E Mahady
- School of Public Health and Preventive MedicineMonash UniversityMelbourneVictoriaAustralia,Department of GastroenterologyRoyal Melbourne HospitalMelbourneVictoriaAustralia
| | - Elizabeth Powell
- Department of Gastroenterology and HepatologyPrincess Alexandra HospitalBrisbaneQueenslandAustralia
| | - Chris Estes
- Center for Disease AnalysisLafayetteColoradoUSA
| | | | - Jacob George
- School of MedicineUniversity of SydneySydneyNew South WalesAustralia
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Tan HL, Zain SM, Eng HS, Mohamed Z, Mahadeva S, Chan WK, Lau PC, Basu RC, Mohamed R. Allele HLA-DQB1*06 reduces fibrosis score in patients with non-alcoholic fatty liver disease. Hepatol Res 2020; 50:947-954. [PMID: 32410320 DOI: 10.1111/hepr.13525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 05/08/2020] [Accepted: 05/09/2020] [Indexed: 02/08/2023]
Abstract
AIM Human leukocyte antigen (HLA) regions were highlighted as important genetic markers for various liver diseases by hepatology-related genome-wide association studies. Replication studies in non-alcoholic fatty liver disease (NAFLD) are limited and none has investigated the association of HLA alleles with non-alcoholic steatohepatitis (NASH) and other histological characteristics. In the current study, we examined the association of HLA-DQA1 and HLA-DQB1 alleles with NAFLD spectrum and its histological characteristics. METHODS Consecutive biopsy-proven NAFLD patients (n = 191) and healthy controls (n = 188) were enrolled and genotyped for HLA-DQA1 and HLA-DQB1 alleles using the sequence-specific oligonucleotide-polymerase chain reaction method. RESULTS No association was found between the HLA alleles and NAFLD or NASH in a case-control setting. Nevertheless, among NAFLD patients, the frequency of HLA-DQB1*06 allele was significantly the lowest in NASH with significant fibrosis (10.4%) and approximately similar for NASH without significant fibrosis (22.9%) and NAFL (22.5%) (P = 0.004). It is noteworthy that the association remains significant after correction for multiple comparisons (Pc = 0.04). Multivariate analysis revealed that HLA-DQB1*06 allele is also associated with fibrosis score (P = 0.001); the result remains significant after correction for multiple comparisons. CONCLUSION These findings suggest that HLA-DQB1*06 is associated with lower fibrosis score in NAFLD patients.
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Affiliation(s)
- Hwa-Li Tan
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Shamsul Mohd Zain
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Hooi-Sian Eng
- Nephrology and Transplantation Unit, Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Zahurin Mohamed
- Department of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Sanjiv Mahadeva
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Wah-Kheong Chan
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Peng-Choong Lau
- Department of Surgery, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Roma Choudhury Basu
- Clinical Investigation Centre, University Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - Rosmawati Mohamed
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Maliakkal BJ. Pathogenesis of non-alcoholic fatty liver disease and implications on cardiovascular outcomes in liver transplantation. Transl Gastroenterol Hepatol 2020; 5:36. [PMID: 32632387 DOI: 10.21037/tgh.2019.12.02] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 11/05/2019] [Indexed: 12/15/2022] Open
Abstract
Along with the obesity epidemic there has been a major increase in non-alcoholic fatty liver disease (NAFLD) prevalence, paralleling a steady increase in cirrhosis of the liver and hepatocellular cancer (HCC) related to NAFLD. Currently, NAFLD (related HCC and cirrhosis) is the second most common cause for liver transplantation (LT) and it is projected to take the top spot in the next 3-5 years. Patients with NAFLD cirrhosis and HCC have a unique set of comorbidities which potentially increases their risk for cardiovascular disease (CVD) and mortality. However, a review of the published data in NAFLD patients who undergo LT, does not paint a clear picture. While CVD is the most common cause of non-graft related mortality over the long-term, the short and intermediate-term survival post LT in NAFLD cirrhosis appears to be on par with other etiologies when age and comorbidities are factored. The cardiovascular complications are increased in the immediate post-transplant period but there is a shift from ischemic complications to arrhythmias and heart failure (HF). NAFLD recurs in 80-100% patients and occurs de novo in about 50% after LT, potentially impacting their long-term morbidity and mortality. This review summarizes the available data on CVD in NAFLD patients before and after LT, explains what is currently known about the epidemiology and pathogenesis of CVD in NAFLD and posits strategies to improve wait-list and post-transplant survival.
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Clinical Patterns and Outcome of Hepatocellular Carcinoma in Patients with Nonalcoholic Fatty Liver Disease. Can J Gastroenterol Hepatol 2020; 2020:4873875. [PMID: 32566546 PMCID: PMC7292979 DOI: 10.1155/2020/4873875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 11/16/2019] [Accepted: 05/21/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) may develop into liver cirrhosis and hepatocellular carcinoma (HCC). The aim of this study was to compare the clinical patterns and survival outcomes of NAFLD-related HCC patients and those of alcoholic liver disease (ALD)-related or hepatitis B virus (HBV)-related HCC patients. METHODS A total of 622 HCC patients with associated NAFLD (n = 56), ALD (n = 173), or HBV infection (n = 393) were enrolled. The clinical characteristics and survival were analyzed according to the underlying liver diseases. RESULTS NAFLD-related HCC patients were more commonly older women and had more metabolic risk factors but were less likely to have cirrhosis and ascites, compared to ALD-related or HBV-related HCC patients. NAFLD-related HCC more often had an infiltrative pattern (P=0.047), a larger tumor (P=0.001), more macrovascular invasion (P=0.022), and exceeded the Milan criteria (P=0.001), but was less frequently diagnosed during tumor surveillance (P=0.025). Survival analysis did not show any difference among NAFLD-related, ALD-related, and HBV-related HCC patients. Furthermore, propensity score matching analysis did not reveal a significant difference in the median survival between the different groups (NAFLD vs. ALD, 14.0 months [95% confidence interval (CI), 2.0-26.0] vs. 13.0 months [95% CI, 0-26.3]; P=0.667, NAFLD vs. HBV, 14.0 months [95% CI, 2.0-26.0] vs. 12.0 months [95% CI, 4.3-17.8]; P=0.573). CONCLUSIONS NAFLD-related HCCs were more often detected at an advanced stage with infiltrative patterns, although they showed no significant difference in survival compared to ALD-related or HBV-related HCCs. A future prospective research should be focused on identifying NAFLD patients who require strict surveillance in order to early detect and timely treat HCC.
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61
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Zhao R, Zhang Y, Wang X, Colgan TJ, Rehm JL, Reeder SB, Johnson KM, Hernando D. Motion-robust, high-SNR liver fat quantification using a 2D sequential acquisition with a variable flip angle approach. Magn Reson Med 2020; 84:2004-2017. [PMID: 32243665 DOI: 10.1002/mrm.28263] [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: 11/19/2019] [Revised: 02/24/2020] [Accepted: 03/02/2020] [Indexed: 01/18/2023]
Abstract
PURPOSE Chemical shift encoded (CSE)-MRI enables quantification of proton-density fat fraction (PDFF) as a biomarker of liver fat content. However, conventional 3D Cartesian CSE-MRI methods require breath-holding. A motion-robust 2D Cartesian sequential method addresses this limitation but suffers from low SNR. In this work, a novel free breathing 2D Cartesian sequential CSE-MRI method using a variable flip angle approach with centric phase encoding (VFA-centric) is developed to achieve fat quantification with low T 1 bias, high SNR, and minimal blurring. METHODS Numerical simulation was performed for variable flip angle schedule design and preliminary evaluation of VFA-centric method, along with several alternative flip angle designs. Phantom, adults (n = 8), and children (n = 27) were imaged at 3T. Multi-echo images were acquired and PDFF maps were estimated. PDFF standard deviation was used as a surrogate for SNR. RESULTS In both simulation and phantom experiments, the VFA-centric method enabled higher SNR imaging with minimal T 1 bias and blurring artifacts. High correlation (slope = 1.00, intercept = 0.04, R 2 = 0.998) was observed in vivo between the proposed VFA-centric method obtained PDFF and reference PDFF (free breathing low-flip angle 2D sequential acquisition). Further, the proposed VFA-centric method (PDFF standard deviation = 1.5%) had a better SNR performance than the reference acquisition (PDFF standard deviation = 3.3%) with P < .001. CONCLUSIONS The proposed free breathing 2D Cartesian sequential CSE-MRI method with variable flip angle approach and centric-ordered phase encoding achieved motion robustness, low T 1 bias, high SNR compared to previous 2D sequential methods, and low blurring in liver fat quantification.
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Affiliation(s)
- Ruiyang Zhao
- Department of Radiology, University of Wisconsin-Madison, Madison, WI, USA.,Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - Yuxin Zhang
- Department of Radiology, University of Wisconsin-Madison, Madison, WI, USA.,Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - Xiaoke Wang
- Department of Radiology, University of Wisconsin-Madison, Madison, WI, USA.,Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Timothy J Colgan
- Department of Radiology, University of Wisconsin-Madison, Madison, WI, USA.,Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - Jennifer L Rehm
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, USA
| | - Scott B Reeder
- Department of Radiology, University of Wisconsin-Madison, Madison, WI, USA.,Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA.,Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA.,Department of Medicine, University of Wisconsin-Madison, Madison, WI, USA.,Department of Emergency Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Kevin M Johnson
- Department of Radiology, University of Wisconsin-Madison, Madison, WI, USA.,Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA
| | - Diego Hernando
- Department of Radiology, University of Wisconsin-Madison, Madison, WI, USA.,Department of Medical Physics, University of Wisconsin-Madison, Madison, WI, USA
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Swain MG, Ramji A, Patel K, Sebastiani G, Shaheen AA, Tam E, Marotta P, Elkhashab M, Bajaj HS, Estes C, Razavi H. Burden of nonalcoholic fatty liver disease in Canada, 2019-2030: a modelling study. CMAJ Open 2020; 8:E429-E436. [PMID: 32518095 PMCID: PMC7286622 DOI: 10.9778/cmajo.20190212] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) account for a growing proportion of liver disease cases, and there is a need to better understand future disease burden. We used a modelling framework to forecast the burden of disease of NAFLD and NASH for Canada. METHODS We used a Markov model to forecast fibrosis progression from stage F0 (no fibrosis) to stage F4 (compensated cirrhosis) and subsequent progression to decompensated cirrhosis, hepatocellular carcinoma, liver transplantation and liver-related death among Canadians with NAFLD from 2019 to 2030. We used historical trends for obesity prevalence among adults to estimate longitudinal changes in the number of incident NAFLD cases. RESULTS The model projected that the number of NAFLD cases would increase by 20% between 2019 and 2030, from an estimated 7 757 000 cases to 9 305 000 cases. Increases in advanced fibrosis cases were relatively greater, as the number of model-estimated prevalent stage F3 cases would increase by 65%, to 357 000, and that of prevalent stage F4 cases would increase by 95%, to 195 000. Estimated incident cases of hepatocellular carcinoma and decompensated cirrhosis would increase by up to 95%, and the number of annual NAFLD-related deaths would double, to 5600. INTERPRETATION Increasing rates of obesity translate into increasing NAFLD-related cases of cirrhosis and hepatocellular carcinoma and related mortality. Prevention efforts should be aimed at reducing the incidence of NAFLD and slowing fibrosis progression among those already affected.
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Affiliation(s)
- Mark G Swain
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
| | - Alnoor Ramji
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
| | - Keyur Patel
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
| | - Giada Sebastiani
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
| | - Abdel Aziz Shaheen
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
| | - Edward Tam
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
| | - Paul Marotta
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
| | - Magdy Elkhashab
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
| | - Harpreet S Bajaj
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
| | - Chris Estes
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo.
| | - Homie Razavi
- Division of Gastroenterology and Hepatology (Swain, Shaheen), Cumming School of Medicine, University of Calgary, Calgary, Alta.; Division of Gastroenterology (Ramji), University of British Columbia, Vancouver, BC; Toronto Centre for Liver Disease (Patel), University Hospital Network, Toronto, Ont.; Division of Gastroenterology and Hepatology (Sebastiani), McGill University Health Centre, Montréal, Que.; LAIR Centre (Tam), Vancouver, BC; Division of Gastroenterology (Marotta), Department of Medicine, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Ont.; Toronto Liver Centre (Elkhashab), Toronto, Ont.; LMC Diabetes and Endocrinology Brampton (Bajaj), Brampton, Ont.; Leadership Sinai Centre for Diabetes (Bajaj), Mount Sinai Hospital, Toronto, Ont.; Center for Disease Analysis Foundation (Estes, Razavi), Lafayette, Colo
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Estes C, Chan HLY, Chien RN, Chuang W, Fung J, Goh GBB, Hu TH, Huang J, Jang BK, Jun DW, Kao JH, Lee J, Lin H, Razavi‐Shearer K, Seto W, Wong GL‐H, Wong VW‐S, Razavi H. Modelling NAFLD disease burden in four Asian regions-2019-2030. Aliment Pharmacol Ther 2020; 51:801-811. [PMID: 32133676 PMCID: PMC7154715 DOI: 10.1111/apt.15673] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 01/27/2020] [Accepted: 02/06/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) account for an increasing proportion of liver disease in the Asia-Pacific region. Many areas in the region are experiencing epidemics of metabolic syndrome among rapidly ageing populations. AIMS To estimate using modelling the growth in NAFLD populations, including cases with significant fibrosis that are most likely to experience advanced liver disease and related mortality. METHODS A disease progression model was used to summarise and project fibrosis progression among the NAFLD populations of Hong Kong, Singapore, South Korea and Taiwan. For each area, changes in the adult prevalence of obesity was used to extrapolate long-term trends in NAFLD incidence. RESULTS In the areas studied, prevalent NAFLD cases were projected to increase 6%-20% during 2019-2030, while prevalent NASH cases increase 20%-35%. Incident cases of hepatocellular carcinoma are projected to increase by 65%-85%, while incident decompensated cirrhosis cases increase 65%-100% by 2030. Likewise, NAFLD-related mortality is projected to increase between 65% and 100% from 2019 to 2030. NAFLD disease burden is expected to increase alongside rising trends in metabolic syndrome and obesity among populations in the region. This leads to more cases of advanced liver disease and associated mortality. CONCLUSIONS Preventing the growth of diabetic and obese populations will be a key factor in reducing ongoing increases in NAFLD-related disease burden in the Asia-Pacific region.
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Han ML, Lee WJ, Chen JC, Ser KH, Chen SC, Lee YC. Clinical Characteristics and Outcome of Morbidly Obese Bariatric Patients with Concurrent Hepatitis C Viral Infection. Obes Surg 2020; 29:828-834. [PMID: 30536020 DOI: 10.1007/s11695-018-3615-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Hepatitis C virus (HCV) is an important cause of liver cirrhosis and its complications. The safety and efficacy of bariatric surgery in patients with HCV infection is not clear. METHODS Charts were reviewed to identify patients with HCV infection before bariatric surgery. Bariatric surgical patients with non-alcoholic steatohepatitis (NASH) and without NASH (non-NASH) were recruited as comparative groups. Demographic variables, perioperative data, follow-up, and HCV-related parameters were extracted and compared. RESULTS Forty-seven bariatric patients between 2000 and 2016 that suffered from HCV infection were identified. The mean age and body mass index (BMI) at baseline were 34.5 ± 9.9 years and 40.4 ± 7.7 kg/m2, respectively. The HCV(+) group was associated with female sex, older age, lower BMI, and waist circumference than both NASH and non-NASH groups. Both HCV(+) and NASH groups had higher liver function tests and incidence of metabolic syndrome than non-NASH group. The HCV(+) group had lower uric acid and albumin level than the NASH group. Early major postoperative complication occurred in 1 (2.1%) patient of the HCV(+) group. At follow-up, the mean BMI decreased to 29.1 ± 7.1 kg/m2 and total weight loss was 25% for the HCV(+) group at 5 years after surgery. The weight loss curves were similar between the HCV(+) group and NASH group. During follow-up, no patients died but one patient with HCV(+) developed flare up of hepatitis after gastric bypass. The mean liver transaminase level remained in normal range for the HCV(+) group. CONCLUSION Co-existence of HCV infection does not influence the outcome of bariatric surgery but continued monitoring of the liver function is indicated.
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Affiliation(s)
- Ming-Lun Han
- Department of Internal Medicine, Ming-Sheng General Hospital, National Taiwan University, Taipei, Taiwan
- Department of Integrated Diagnostics & Therapeutics, National Taiwan University Hospital, Taipei, Taiwan
| | - Wei-Jei Lee
- Department of Surgery, Ming-Sheng General Hospital, National Taiwan University, Taipei, Taiwan
- , Tauoyan, Republic of China
| | - Jung-Chien Chen
- Department of Surgery, Ming-Sheng General Hospital, National Taiwan University, Taipei, Taiwan
| | - Kong-Han Ser
- Department of Surgery, Ming-Sheng General Hospital, National Taiwan University, Taipei, Taiwan
| | - Shu-Chun Chen
- Department of Surgery, Ming-Sheng General Hospital, National Taiwan University, Taipei, Taiwan
| | - Yi-Chih Lee
- Department of International Business, Chien Hsin University of Science and Technology, Taoyuan, Taiwan
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Management of nonalcoholic fatty liver disease and the role of bariatric surgery: a brief review for surgeons. Surg Obes Relat Dis 2020; 16:699-703. [PMID: 32151552 DOI: 10.1016/j.soard.2020.01.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 01/10/2020] [Accepted: 01/29/2020] [Indexed: 12/12/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is closely linked to the metabolic syndrome and is highly prevalent in bariatric patients. The criterion standard to diagnose NAFLD is a liver biopsy specifically to detect inflammatory changes characteristic of nonalcoholic steatohepatitis. Technologic advancements will improve the accuracy of current noninvasive modalities. Modification of risk factors via food management is important to prevent the progression of NAFLD to nonalcoholic steatohepatitis and cirrhosis. Several clinical trials are underway for pharmacologic treatment of NAFLD; currently the mainstay of treatment is insulin sensitizers and vitamin E. There is strong evidence bariatric surgery improves biochemical and histologic features of NAFLD and therefore, bariatric surgery should be considered as a treatment of NAFLD in patients with obesity. Gastric bypass exhibits antilipogenic, antiinflammatory, antioxidant, and antidiabetic properties in the livers of laboratory animals; thereby, providing a unique window to study regulation of body adiposity and insulin resistance.
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66
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Yang JD, Ahmed F, Mara KC, Addissie BD, Allen AM, Gores GJ, Roberts LR. Diabetes Is Associated With Increased Risk of Hepatocellular Carcinoma in Patients With Cirrhosis From Nonalcoholic Fatty Liver Disease. Hepatology 2020; 71:907-916. [PMID: 31309602 PMCID: PMC6960360 DOI: 10.1002/hep.30858] [Citation(s) in RCA: 119] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 07/16/2019] [Indexed: 12/13/2022]
Abstract
Diabetes increases the risk of liver disease progression and cirrhosis development in patients with nonalcoholic steatohepatitis (NASH). The association between diabetes and the risk of hepatocellular carcinoma (HCC) in NASH patients with cirrhosis is not well quantified. All patients with the diagnosis of NASH cirrhosis seen at Mayo Clinic Rochester between January 2006 and December 2015 were identified. All adult liver transplant registrants with NASH between 2004 and 2017 were identified using the United Network for Organ Sharing (UNOS)/Organ Procurement and Transplantation registry for external validation. Cox proportional hazard analysis was performed to investigate the association between diabetes and HCC risk. Among 354 Mayo Clinic patients with NASH cirrhosis, 253 (71%) had diabetes and 145 (41%) were male. Mean age at cirrhosis evaluation was 62. During a median follow-up of 47 months, 30 patients developed HCC. Diabetes was associated with an increased risk of developing HCC in univariate (hazard ratio [HR] = 3.6; 95% confidence interval [CI] = 1.1-11.9; P = 0.04) and multivariable analysis (HR = 4.2; 95% CI = 1.2-14.2; P = 0.02). In addition, age (per decade, HR = 1.8; 95% CI = 1.2-2.6; P < 0.01) and low serum albumin (HR = 2.1; 95% CI = 1.5-2.9; P < 0.01) were significantly associated with an increased risk of developing HCC in multivariable analysis. Other metabolic risk factors, including body mass index, hyperlipidemia, and hypertension, were not associated with HCC risk. Among UNOS NASH registrants (N = 6,630), 58% had diabetes. Diabetes was associated with an increased risk of developing HCC in univariate (HR = 1.4; 95% CI = 1.1-1.8; P < 0.01) and multivariable (HR = 1.3; 95% CI = 1.0-1.7; P = 0.03) analysis. Conclusion: Diabetes is associated with an increased risk of HCC in patients with NASH cirrhosis.
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Affiliation(s)
- Ju Dong Yang
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN,Division of Digestive and Liver Diseases, Department of Internal Medicine, Cedars-Sinai Medical Center, Los Angeles, CA,Comprehensive Transplant Center, Cedars Sinai Medical Center, Los Angeles, CA,Samuel Oschin Comprehensive Cancer Institute, Cedars Sinai Medical Center, Los Angeles, CA
| | - Fowsiyo Ahmed
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN
| | - Kristin C. Mara
- Department of Health Science Research, Mayo Clinic College of Medicine and Science, Rochester, MN
| | - Benyam D. Addissie
- Division of Gastroenterology and Hepatology, Geisinger Medical Center, Danville, PA
| | - Alina M. Allen
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN
| | - Gregory J. Gores
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN
| | - Lewis R. Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine and Science, Rochester, MN
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Samji NS, Heda R, Kovalic AJ, Satapathy SK. Similarities and Differences Between Nonalcoholic Steatohepatitis and Other Causes of Cirrhosis. Gastroenterol Clin North Am 2020; 49:151-164. [PMID: 32033761 DOI: 10.1016/j.gtc.2019.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Nonalcoholic fatty liver disease includes a spectrum of liver disorders that range from simple steatosis to nonalcoholic steatohepatitis (NASH), fibrosis, and cirrhosis. Risk factors such as obesity, hypertension, hyperlipidemia, chronic kidney disease, and smoking status increase risk of progression to cirrhosis among patients with NASH. Cirrhosis derived from non-NASH causes may share similar features with patients with NASH but embody distinct pathogenetic mechanisms, genetic associations, prognosis, and outcomes. This article discusses in detail the comparison of clinical, genetic, and outcome characteristics between patients with NASH cirrhosis as opposed to alternative causes of chronic liver disease.
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Affiliation(s)
- Naga Swetha Samji
- Tenova Cleveland Hospital, 2305 Chambliss Avenue Northwest, Cleveland, TN 37311, USA
| | - Rajiv Heda
- University of Tennessee Health Science Center, College of Medicine, Memphis, TN 38163, USA
| | - Alexander J Kovalic
- Department of Internal Medicine, Wake Forest Baptist Medical Center, Winston Salem, NC, USA
| | - Sanjaya K Satapathy
- Division of Hepatology, Sandra Atlas Bass Center for Liver Diseases & Transplantation, Donald and Barbara Zucker School of Medicine/Northwell Health, 400 Community Drive, Manhasset, NY 11030, USA.
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Singh SP, Barik RK. NonInvasive Biomarkers in Nonalcoholic Fatty Liver Disease: Are We There Yet? J Clin Exp Hepatol 2020; 10:88-98. [PMID: 32025168 PMCID: PMC6995889 DOI: 10.1016/j.jceh.2019.09.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2019] [Accepted: 09/15/2019] [Indexed: 12/12/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide. NAFLD encompasses a spectrum of disease ranging from simple steatosis (NAFL) to nonalcoholic steatohepatitis (NASH), cirrhosis and hepatocellular carcinoma. However, despite the growing recognition of this important disease burden, there are significant challenges to accurately and noninvasively diagnose the various forms of NAFLD, especially to differentiate benign steatosis from the progressive NASH. This is of utmost importance because although liver biopsy is considered the current imperfect 'gold' standard for diagnosing NASH and staging fibrosis, it is an invasive procedure with significant limitations. Although, a number of noninvasive markers have been or are currently undergoing investigation, until date, no highly sensitive and specific tests are available to differentiate NASH from simple steatosis. At the moment, further investigations are needed before prediction models or blood-based biomarkers become available and acceptable for routine clinical care. There is a great need for developing inexpensive, easily accessible, highly sensitive and specific biomarkers that permit not only the identification of patients at high risk of adverse outcomes, but also the monitoring of disease progression and response after therapeutic interventions.
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Affiliation(s)
- Shivaram P. Singh
- Address for correspondence: Shivaram Prasad Singh, Professor, Dept. of Gastroenterology, S.C.B. Medical College, Cuttack, Odisha, 753007, India.
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Gawrieh S, Dakhoul L, Miller E, Scanga A, deLemos A, Kettler C, Burney H, Liu H, Abu-Sbeih H, Chalasani N, Wattacheril J. Characteristics, aetiologies and trends of hepatocellular carcinoma in patients without cirrhosis: a United States multicentre study. Aliment Pharmacol Ther 2019; 50:809-821. [PMID: 31475372 DOI: 10.1111/apt.15464] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 06/30/2019] [Accepted: 07/24/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Limited data exist on the burden and features of non-cirrhotic hepatocellular carcinoma (HCC) in the United States. AIM To evaluate characteristics, aetiologies, trends and outcomes of non-cirrhotic HCC from 2000 to 2014 at five large US centres METHODS: Patient, tumour and liver disease aetiology data were collected. The presence of underlying cirrhosis was assessed based on published criteria. RESULTS Of 5144 eligible patients with HCC, 11.7% had no underlying cirrhosis. Non-cirrhotic patients were older (64.1 vs 61.2 years), more frequently females (33.9% vs 20.8%) and less frequently black (8.3% vs 12.4%) (P < .001 for all). Among non-cirrhotic patients, non-alcoholic fatty liver disease (NAFLD) was the most common liver disease (26.3%), followed by hepatitis C virus (HCV) (12.1%) and hepatitis B virus (HBV) (10%) infections. As of 2014, there was increased percentage of cirrhotic HCC and a decline in non-cirrhotic HCC mainly due to significant annual increases in cirrhotic HCC due to HCV (0.96% [P < .0001]) and NAFLD (0.66% [P = .003]). Patients with non-cirrhotic HCC had larger tumours (8.9 vs 5.3 cm), were less frequently within Milan criteria (15% vs 39%), more frequently underwent resection (43.6% vs 8%) (P < .001 for all) and had better overall survival than cirrhotic HCC patients (median 1.8 vs 1.3 years, P = .004). CONCLUSIONS Nearly 12% of HCCs occurred in patients without underlying cirrhosis. NAFLD was the most common liver disease in these patients. During the study, the frequency of non-cirrhotic HCC decreased, whereas that of cirrhotic HCC increased. Although non-cirrhotic patients presented with more advanced HCC, their survival was better.
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Affiliation(s)
- Samer Gawrieh
- Indiana University School of Medicine, Indianapolis, Indiana
| | - Lara Dakhoul
- Indiana University School of Medicine, Indianapolis, Indiana
| | | | - Andrew Scanga
- Vanderbilt University School of Medicine, Nashville, Tennessee
| | | | - Carla Kettler
- Indiana University School of Medicine, Indianapolis, Indiana
| | - Heather Burney
- Indiana University School of Medicine, Indianapolis, Indiana
| | - Hao Liu
- Indiana University School of Medicine, Indianapolis, Indiana
| | | | - Naga Chalasani
- Indiana University School of Medicine, Indianapolis, Indiana
| | - Julia Wattacheril
- Columbia University Vagelos College of Physicians and Surgeons, New York, New York
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Kim D, Cholankeril G, Li AA, Kim W, Tighe SP, Hameed B, Kwo PY, Harrison SA, Younossi ZM, Ahmed A. Trends in hospitalizations for chronic liver disease-related liver failure in the United States, 2005-2014. Liver Int 2019; 39:1661-1671. [PMID: 31081997 DOI: 10.1111/liv.14135] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 03/11/2019] [Accepted: 05/08/2019] [Indexed: 12/13/2022]
Abstract
BACKGROUND & AIMS Current estimates of the population-based disease burden of liver failure or end-stage liver disease (ESLD) are lacking. We investigated recent trends in hospitalizations and in-hospital mortality among patients with ESLD in the United States (US). METHODS A retrospective analysis was performed utilizing the National Inpatient Sample from 2005 to 2014. We defined ESLD as either decompensated cirrhosis or hepatocellular carcinoma (HCC), criteria obtained from the International Classification of Diseases, Ninth Revision. Nationwide rates of hospitalization and in-hospital mortality were analysed from 2005 to 2014. RESULTS Hospitalization rates for decompensated cirrhosis during this period increased from 105.3/100 000 persons to 159.9/100 000 persons. In terms of HCC, hospitalization rates increased from 13.6/100 000 to 22.1/100 000. In patients with non-alcoholic fatty liver disease (NAFLD)-related decompensated cirrhosis, the hospitalization rate increased from 13.4/100 000 to 32.1/100 000 with an annual incremental increase of 10.6%, a magnitude twofold higher than other aetiologies. The proportion of NAFLD among hospitalizations with ESLD steadily increased from 12.7% to 20.1% for decompensated cirrhosis while the proportion of chronic hepatitis C (HCV) and alcoholic liver disease (ALD) declined (from 29.3% to 27.6% for HCV; from 39.0% to 37.4% for ALD). Although the overall in-hospital mortality rates for ESLD declined during the study, mortality rates for NAFLD-related decompensated cirrhosis showed no significant change. CONCLUSIONS Among aetiologies of chronic liver disease, NAFLD demonstrated the fastest growing rate of hospitalizations in non-HCC patients with ESLD in the US. Our study highlights the need for a focus on NAFLD-related hospitalizations and its impact on resource utilization.
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Affiliation(s)
- Donghee Kim
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA
| | - George Cholankeril
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA
| | - Andrew A Li
- Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Won Kim
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul Metropolitan Government Boramae Medical Center, Seoul, Korea
| | - Sean P Tighe
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA
| | - Bilal Hameed
- Division of Gastroenterology and Hepatology, University of California San Francisco - UCSF Health, San Francisco, California, USA
| | - Paul Y Kwo
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA
| | - Stephen A Harrison
- Radcliffe Department of Medicine, University of Oxford, Oxford, United Kingdom
| | - Zobair M Younossi
- Department of Medicine, Center for Liver Diseases, Inova Fairfax Hospital, Falls Church, Virginia, USA
| | - Aijaz Ahmed
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, California, USA
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Ratziu V, Sanyal AJ, Loomba R, Rinella M, Harrison S, Anstee QM, Goodman Z, Bedossa P, MacConell L, Shringarpure R, Shah A, Younossi Z. REGENERATE: Design of a pivotal, randomised, phase 3 study evaluating the safety and efficacy of obeticholic acid in patients with fibrosis due to nonalcoholic steatohepatitis. Contemp Clin Trials 2019; 84:105803. [PMID: 31260793 DOI: 10.1016/j.cct.2019.06.017] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/18/2019] [Accepted: 06/27/2019] [Indexed: 12/20/2022]
Abstract
BACKGROUND Nonalcoholic steatohepatitis (NASH) is a chronic, progressive, and severe form of nonalcoholic fatty liver disease. In FLINT, obeticholic acid (OCA) treatment improved multiple histological NASH features. The design and endpoints of REGENERATE, an ongoing phase 3 study, further evaluate OCA treatment in patients with fibrosis due to NASH. AIMS The Month 18 interim analysis assesses the effect of OCA on liver histology, defined as improvement of fibrosis by ≥1 stage with no worsening of NASH or resolution of NASH with no worsening of fibrosis. The end-of-study analyses evaluate the effect of OCA on mortality, liver-related clinical outcomes, and long-term safety. METHODS REGENERATE is a pivotal, long-term study of ~2400 patients with NASH, including ~2100 patients with stage 2 or 3 liver fibrosis. Additionally, ~300 patients with stage 1 fibrosis and ≥1 accompanying comorbidity are included to gather information on the safety of OCA and liver disease progression. Patients are randomised 1:1:1 to receive placebo or OCA (10 or 25 mg). A liver biopsy evaluation occurs at screening, Months 18 and 48, and end of study. The duration of the study is dependent upon accrual of a predetermined number of clinical outcome events. CONCLUSIONS REGENERATE is designed in conjunction with regulatory authorities to support regulatory approvals in NASH. This robust phase 3 study assesses the effect of OCA on liver histology as a surrogate for transplant-free survival and liver-related outcomes, including progression to cirrhosis and mortality, and will ultimately assess clinical benefit through specific evaluation of these outcomes. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov with the identifier NCT02548351.
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Affiliation(s)
- Vlad Ratziu
- Sorbonne Université, Hôpital Pitié - Salpêtrière, 91-105 Boulevard de l'Hôpital, 75013 Paris, France.
| | - Arun J Sanyal
- Department of Internal Medicine, Virginia Commonwealth University, 1101 E Marshall St, Richmond, VA, USA
| | - Rohit Loomba
- University of California, San Diego, 9500 Gilman Dr, La Jolla, CA, USA
| | - Mary Rinella
- Division of Gastroenterology and Hepatology, Feinberg School of Medicine, Northwestern University, 676 N Saint Clair St, Chicago, IL, USA
| | - Stephen Harrison
- Pinnacle Clinical Research Center, 5109 Medical Dr. Ste 200, San Antonio, TX 78229, United States
| | - Quentin M Anstee
- Liver Research Group, Institute of Cellular Medicine, The Medical School, Newcastle University, Framlington Place, Newcastle-upon-Tyne, NE2 4HH, UK
| | - Zachary Goodman
- Betty and Guy Beatty Center for Integrated Research, Inova Health System, Claude Moore Health Education and Research Building, 3300 Gallows Rd, Falls Church, VA, USA
| | - Pierre Bedossa
- Service d'Anatomie Pathologique, Hôpital Beaujon, Assistance Publique-Hôpitaux de Paris, INSERM UMR 1149-CRI, Université Denis Diderot Paris-7, 46 rue Henri Huchard, 75018 Clichy, France
| | - Leigh MacConell
- Intercept Pharmaceuticals, 4760 Eastgate Mall, San Diego, CA, USA
| | | | - Amrik Shah
- Intercept Pharmaceuticals, 4760 Eastgate Mall, San Diego, CA, USA
| | - Zobair Younossi
- Betty and Guy Beatty Center for Integrated Research, Inova Health System, Claude Moore Health Education and Research Building, 3300 Gallows Rd, Falls Church, VA, USA
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Srivastava A, Jong S, Gola A, Gailer R, Morgan S, Sennett K, Tanwar S, Pizzo E, O'Beirne J, Tsochatzis E, Parkes J, Rosenberg W. Cost-comparison analysis of FIB-4, ELF and fibroscan in community pathways for non-alcoholic fatty liver disease. BMC Gastroenterol 2019; 19:122. [PMID: 31296161 PMCID: PMC6624894 DOI: 10.1186/s12876-019-1039-4] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 06/26/2019] [Indexed: 01/07/2023] Open
Abstract
Background The identification of patients with advanced liver fibrosis secondary to non-alcoholic fatty liver disease (NAFLD) remains challenging. Using non-invasive liver fibrosis tests (NILT) in primary care may permit earlier detection of patients with clinically significant disease for specialist review, and reduce unnecessary referral of patients with mild disease. We constructed an analytical model to assess the clinical and cost differentials of such strategies. Methods A probabilistic decisional model simulated a cohort of 1000 NAFLD patients over 1 year from a healthcare payer perspective. Simulations compared standard care (SC) (scenario 1) to: Scenario 2: FIB-4 for all patients followed by Enhanced Liver Fibrosis (ELF) test for patients with indeterminate FIB-4 results; Scenario 3: FIB-4 followed by fibroscan for indeterminate FIB-4; Scenario 4: ELF alone; and Scenario 5: fibroscan alone. Model estimates were derived from the published literature. The primary outcome was cost per case of advanced fibrosis detected. Results Introduction of NILT increased detection of advanced fibrosis over 1 year by 114, 118, 129 and 137% compared to SC in scenarios 2, 3, 4 and 5 respectively with reduction in unnecessary referrals by 85, 78, 71 and 42% respectively. The cost per case of advanced fibrosis (METAVIR ≥F3) detected was £25,543, £8932, £9083, £9487 and £10,351 in scenarios 1, 2, 3, 4 and 5 respectively. Total budget spend was reduced by 25.2, 22.7, 15.1 and 4.0% in Scenarios 2, 3, 4 and 5 compared to £670 K at baseline. Conclusion Our analyses suggest that the use of NILT in primary care can increases early detection of advanced liver fibrosis and reduce unnecessary referral of patients with mild disease and is cost efficient. Adopting a two-tier approach improves resource utilization.
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Affiliation(s)
- Ankur Srivastava
- UCL Institute for Liver and Digestive Health, Royal Free Campus, London, NW3 2PF, UK.
| | - Simcha Jong
- Science Based Business, Leiden University, Snellius Building, Niels Bohrweg 1, 2333 CA, Leiden, Netherlands
| | - Anna Gola
- Health Economist, 6th Floor, Maple House, 149 Tottenham Court Road, London, W1T 7NF, UK
| | - Ruth Gailer
- Department of Primary care and Population Health, Upper 3rd Floor, Royal Free Hospital, London, NW3 2PF, UK
| | - Sarah Morgan
- Camden Clinical Commissioning Group, 75 Hampstead Rd, London, NW1 2PL, UK
| | - Karen Sennett
- Islington Clinical Commissioning Group Laycock St, London, N1 1TH, UK
| | - Sudeep Tanwar
- UCL Institute for Liver and Digestive Health, Royal Free Campus, London, NW3 2PF, UK
| | - Elena Pizzo
- Department of Applied Health Research, UCL 1-19 Torrington Place, London, WC1E7HB, UK
| | - James O'Beirne
- UCL Institute for Liver and Digestive Health, Royal Free Campus, London, NW3 2PF, UK
| | - Emmanuel Tsochatzis
- UCL Institute for Liver and Digestive Health, Royal Free Campus, London, NW3 2PF, UK
| | - Julie Parkes
- Public Health Sciences and Medical Statistics, University of Southampton, Southampton, UK
| | - William Rosenberg
- UCL Institute for Liver and Digestive Health, Royal Free Campus, London, NW3 2PF, UK
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Brandman D. Who Should Treat Fatty Liver Disease: Primary Care or Hepatology? Clin Liver Dis (Hoboken) 2019; 13:158-161. [PMID: 31316762 PMCID: PMC6605735 DOI: 10.1002/cld.766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/22/2018] [Indexed: 02/04/2023] Open
Affiliation(s)
- Danielle Brandman
- Division of Gastroenterology, Department of MedicineUniversity of California San FranciscoSan FranciscoCA
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Abstract
Nonalcoholic fatty liver disease (NAFLD) was first described as a distinct clinical entity four decades ago. However, the condition has become the centre of attention within hepatology owing to its high prevalence and growing contribution to the burden of end-stage liver disease in the general population. This Perspective provides an overview on the development of knowledge related to NAFLD with a focus on landmark findings that have influenced current paradigms and key knowledge gaps that need to be filled to make progress. Specifically, a timeline of scientific discovery of both basic disease mechanisms (with a focus on human data) and the evolution of knowledge about the clinical course of the disease is provided and related to current approaches to treat and eventually prevent NAFLD.
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Affiliation(s)
- Arun J Sanyal
- Division of Gastroenterology, Hepatology and Nutrition, Virginia Commonwealth University, School of Medicine, Richmond, VA, USA.
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International Liver Transplantation Consensus Statement on End-stage Liver Disease Due to Nonalcoholic Steatohepatitis and Liver Transplantation. Transplantation 2019; 103:45-56. [PMID: 30153225 DOI: 10.1097/tp.0000000000002433] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nonalcoholic steatohepatitis (NASH)-related cirrhosis has become one of the most common indications for liver transplantation (LT), particularly in candidates older than 65 years. Typically, NASH candidates have concurrent obesity, metabolic, and cardiovascular risks, which directly impact patient evaluation and selection, waitlist morbidity and mortality, and eventually posttransplant outcomes. The purpose of these guidelines is to highlight specific features commonly observed in NASH candidates and strategies to optimize pretransplant evaluation and waitlist survival. More specifically, the working group addressed the following clinically relevant questions providing recommendations based on the Grading of Recommendation, Assessment, Development and Evaluation (GRADE) system supported by rigorous systematic reviews and consensus: (1) Is the outcome after LT similar to that of other etiologies of liver disease? (2) Is the natural history of NASH-related cirrhosis different from other etiologies of end-stage liver disease? (3) How should cardiovascular risk be assessed in the candidate for LT? Should the assessment differ from that done in other etiologies? (4) How should comorbidities (hypertension, diabetes, dyslipidemia, obesity, renal dysfunction, etc.) be treated in the candidate for LT? Should treatment and monitoring of these comorbidities differ from that applied in other etiologies? (5) What are the therapeutic strategies recommended to improve the cardiovascular and nutritional status of a NASH patient in the waiting list for LT? (6) Is there any circumstance where obesity should contraindicate LT? (7) What is the optimal time for bariatric surgery: before, during, or after LT? (8) How relevant is donor steatosis for LT in NASH patients?
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D’Amico G, Perricone G. Prediction of Decompensation in Patients with Compensated Cirrhosis: Does Etiology Matter? ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s11901-019-00473-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Abe N, Kato S, Tsuchida T, Sugimoto K, Saito R, Verschuren L, Kleemann R, Oka K. Longitudinal characterization of diet-induced genetic murine models of non-alcoholic steatohepatitis with metabolic, histological, and transcriptomic hallmarks of human patients. Biol Open 2019; 8:bio.041251. [PMID: 31023717 PMCID: PMC6550083 DOI: 10.1242/bio.041251] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is a fast-growing liver disease in the Western world. Currently, only a few animal models show both the metabolic and histological features of human NASH. We aimed to explore murine NASH models in a time dependent manner that exhibit metabolic, histological and transcriptomic hallmarks of human NASH. For this, the murine strains C57BL/6J, ob/ob, and KK-Ay were used and three types of nutritional regimes were administered: normal chow diet (NCD); high-fat, high-fructose, and high-cholesterol diet (fast food diet; FFD); or choline-deficient, L-amino acid-defined, high-fat diet (CDAHFD), for 2, 4, 8, 12, 18, 24, and 30 weeks. All strains under the FFD and CDAHFD regimes developed steatohepatitis. Among the strains treated with FFD, the non-alcoholic fatty liver disease (NAFLD) activity score, fibrosis progression and metabolic abnormalities such as hyperinsulinemia and obesity were more pronounced in ob/ob mice than in C57BL/6J and KK-Ay mice. In ob/ob mice fed FFD, the development of hepatic crown-like structures was confirmed. Furthermore, molecular pathways involved in steatohepatitis and fibrosis showed significant changes from as early as 2 weeks of starting the FFD regime. Ob/ob mice fed FFD showed metabolic, histological, and transcriptomic dysfunctions similar to human NASH, suggesting their potential as an experimental model to discover novel drugs for NASH. Summary: We revealed that ob/ob mice under fast food diet (FFD) regime develop metabolic, histological and transcriptomic dysfunctions similar to human non-alcoholic steatohepatitis (NASH).
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Affiliation(s)
- Naomichi Abe
- Sohyaku. Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, 2-2-50, Kawagishi, Toda-shi, Saitama 335-8505, Japan
| | - Sayuka Kato
- Sohyaku. Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, 2-2-50, Kawagishi, Toda-shi, Saitama 335-8505, Japan
| | - Takuma Tsuchida
- Sohyaku. Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, 2-2-50, Kawagishi, Toda-shi, Saitama 335-8505, Japan
| | - Kanami Sugimoto
- Sohyaku. Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, 2-2-50, Kawagishi, Toda-shi, Saitama 335-8505, Japan
| | - Ryuta Saito
- Sohyaku. Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, 2-2-50, Kawagishi, Toda-shi, Saitama 335-8505, Japan
| | - Lars Verschuren
- Department of Microbiology and Systems Biology, Netherlands Organization for Applied Scientific Research (TNO), Utrechtseweg 48, 3700 AJ, Zeist, The Netherlands
| | - Robert Kleemann
- Department of Metabolic Health Research, Netherlands Organization for Applied Scientific Research (TNO), Zernikedreef 9, 2301 CE, Leiden, the Netherlands.,Department of Vascular Surgery, Netherlands Organization for Applied Scientific Research (TNO), Albinusdreef 2, P.O.Box 9600, 2333 ZA Leiden, The Netherlands
| | - Kozo Oka
- Sohyaku. Innovative Research Division, Mitsubishi Tanabe Pharma Corporation, 2-2-50, Kawagishi, Toda-shi, Saitama 335-8505, Japan
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Villanueva C, Albillos A, Genescà J, Garcia-Pagan JC, Calleja JL, Aracil C, Bañares R, Morillas RM, Poca M, Peñas B, Augustin S, Abraldes JG, Alvarado E, Torres F, Bosch J. β blockers to prevent decompensation of cirrhosis in patients with clinically significant portal hypertension (PREDESCI): a randomised, double-blind, placebo-controlled, multicentre trial. Lancet 2019; 393:1597-1608. [PMID: 30910320 DOI: 10.1016/s0140-6736(18)31875-0] [Citation(s) in RCA: 347] [Impact Index Per Article: 69.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/03/2018] [Accepted: 08/07/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Clinical decompensation of cirrhosis is associated with poor prognosis. Clinically significant portal hypertension (CSPH), defined by a hepatic venous pressure gradient (HVPG) ≥10 mm Hg, is the strongest predictor of decompensation. This study aimed at assessing whether lowering HVPG with β blockers could decrease the risk of decompensation or death in compensated cirrhosis with CSPH. METHODS This study on β blockers to prevent decompensation of cirrhosis with portal hypertension (PREDESCI) was an investigator-initiated, double-blind, randomised controlled trial done in eight hospitals in Spain. We enrolled patients with compensated cirrhosis and CSPH without high-risk varices. All participants had HVPG measurements with assessment of acute HVPG-response to intravenous propranolol. Responders (HVPG-decrease ≥10%) were randomly assigned to propranolol (up to 160 mg twice a day) versus placebo and non-responders to carvedilol (≤25 mg/day) versus placebo. Doses were individually determined during an open-label titration period after which randomisation was done with 1:1 allocation by a centralised web-based system. The primary endpoint was incidence of cirrhosis decompensation (defined as development of ascites, bleeding, or overt encephalopathy) or death. Since death in compensated cirrhosis is usually unrelated to the liver, an intention-to-treat analysis considering deaths unrelated to the liver as competing events was done. This study is registered with ClinicalTrials.gov, number NCT01059396. The trial is now completed. FINDINGS Between Jan 18, 2010, and July 31, 2013, 631 patients were evaluated and 201 were randomly assigned. 101 patients received placebo and 100 received active treatment (67 propranolol and 33 carvedilol). The primary endpoint occurred in 16 (16%) of 100 patients in the β blockers group versus 27 (27%) of 101 in the placebo group (hazard ratio [HR] 0·51, 95% CI 0·26-0·97, p=0·041). The difference was due to a reduced incidence of ascites (HR=0·44, 95%CI=0·20-0·97, p=0·0297). The overall incidence of adverse events was similar in both groups. Six patients (four in the β blockers group) had severe adverse events. INTERPRETATION Long-term treatment with β blockers could increase decompensation-free survival in patients with compensated cirrhosis and CSPH, mainly by reducing the incidence of ascites. FUNDING Spanish Ministries of Health and Economy.
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Affiliation(s)
- Càndid Villanueva
- Hospital of Santa Creu and Sant Pau, Autonomous University of Barcelona, Hospital Sant Pau Biomedical Research Institute (IIB Sant Pau) Barcelona, Spain; Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain.
| | - Agustín Albillos
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; Ramón y Cajal University Hospital, Ramón y Cajal Institute of Health Research (IRYCIS), University of Alcalá, Madrid, Spain
| | - Joan Genescà
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; Liver Unit, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHRI), Autonomous University of Barcelona, Barcelona, Spain
| | - Joan C Garcia-Pagan
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; Barcelona Hepatic Haemodynamic Laboratory, Liver Unit, Institute of Digestive and Metabolic Diseases, August Pi i Sunyer Institute of Biomedical Research, Hospital Clínic, Barcelona, Spain
| | - José L Calleja
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; Puerta de Hierro University Hospital, Puerta de Hierro Hospital Research Institute, Autonomous University of Madrid, Madrid, Spain
| | - Carles Aracil
- Institute of Biomedical Research, Arnau de Vilanova University Hospital (IRBLleida), Lleida, Spain
| | - Rafael Bañares
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; Gregorio Marañón University General Hospital, Gregorio Marañón Sanitary Research Institute, Faculty of Medicine, Complutense University of Madrid, Spain
| | - Rosa M Morillas
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; University Hospital Germans Trias i Pujol, Badalona, Spain
| | - María Poca
- Hospital of Santa Creu and Sant Pau, Autonomous University of Barcelona, Hospital Sant Pau Biomedical Research Institute (IIB Sant Pau) Barcelona, Spain; Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain
| | - Beatriz Peñas
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; Ramón y Cajal University Hospital, Ramón y Cajal Institute of Health Research (IRYCIS), University of Alcalá, Madrid, Spain
| | - Salvador Augustin
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; Liver Unit, Vall d'Hebron University Hospital, Vall d'Hebron Research Institute (VHRI), Autonomous University of Barcelona, Barcelona, Spain
| | - Juan G Abraldes
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; Barcelona Hepatic Haemodynamic Laboratory, Liver Unit, Institute of Digestive and Metabolic Diseases, August Pi i Sunyer Institute of Biomedical Research, Hospital Clínic, Barcelona, Spain; University of Alberta, Edmonton, Canada
| | - Edilmar Alvarado
- Hospital of Santa Creu and Sant Pau, Autonomous University of Barcelona, Hospital Sant Pau Biomedical Research Institute (IIB Sant Pau) Barcelona, Spain; Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain
| | - Ferran Torres
- Medical Statistics Core Facility, August Pi i Sunyer Biomedical Research Institute, Hospital Clinic, Barcelona; Biostatistics Unit, Faculty of Medicine, Autonomous University of Barcelona, Barcelona, Spain
| | - Jaume Bosch
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBERehd), University of Alcalá, Madrid, Spain; Barcelona Hepatic Haemodynamic Laboratory, Liver Unit, Institute of Digestive and Metabolic Diseases, August Pi i Sunyer Institute of Biomedical Research, Hospital Clínic, Barcelona, Spain; Inselspital, Bern University, Switzerland
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Okamura K, Okuda T, Takamiya Y, Shirai K, Urata H. High Fib4 index in patients with suspected NASH is associated with elevation of chymase-dependent angiotensin II-forming activity in circulating mononuclear leucocytes. Heart Vessels 2019; 34:1559-1569. [PMID: 30919112 DOI: 10.1007/s00380-019-01391-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 03/22/2019] [Indexed: 12/12/2022]
Abstract
Fatal hepatic disease is closely related to non-alcoholic fatty liver disease, especially non-alcoholic steatohepatitis (NASH). NASH is associated with cardiovascular events because it develops on the background of lifestyle-related diseases. Chymase-dependent angiotensin II-forming activity (dAIIFA) in circulating mononuclear leucocytes (CML) is a marker of local angiotensin II production and inflammation. This study investigated the association between CML chymase dAIIFA and NASH. Cardiovascular outpatients were recruited and the Fib4 index (F4I) was calculated. Patients with an F4I > 2.67 were classified into the high F4I group and these patients were strongly suspected to have NASH, while patients with an F4I < 1.30 were classified into the low F4I group. Patient background factors were compared between these groups. CML chymase dAIIFA was measured by ELISA using Nma/Dnp-modified angiotensin I. Among 499 patients, 16% were classified into the high F4I group. Compared with the low F4I group, the high F4I group had a significantly higher age, pancytopenia, more frequent diabetes mellitus, lower diastolic blood pressure, lower estimated glomerular filtration rate, higher brain natriuretic peptide, lower plasma aldosterone concentration, higher total AIIFA, higher CML chymase dAIIFA, and higher pulse wave velocity. Contrary to expectations, the body mass index, triglycerides, and low-density lipoprotein cholesterol were relatively low in the high F4I group. Many cardiovascular outpatients have a high F4I and can probably be categorized as NASH. The high F4I patients had few features of metabolic syndrome and were suspected to have elevated tissue chymase dAIIFA contributing to inflammation in the liver as well as in cardiovascular organs.
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Affiliation(s)
- Keisuke Okamura
- Department of Cardiovascular Diseases, Fukuoka University Chikushi Hospital, 1-1-1, Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan.
| | - Tetsu Okuda
- Department of Cardiovascular Diseases, Fukuoka University Chikushi Hospital, 1-1-1, Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Yosuke Takamiya
- Department of Cardiovascular Diseases, Fukuoka University Chikushi Hospital, 1-1-1, Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Kazuyuki Shirai
- Department of Cardiovascular Diseases, Fukuoka University Chikushi Hospital, 1-1-1, Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
| | - Hidenori Urata
- Department of Cardiovascular Diseases, Fukuoka University Chikushi Hospital, 1-1-1, Zokumyoin, Chikushino, Fukuoka, 818-8502, Japan
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Suk KT, Kim DJ. Gut microbiota: novel therapeutic target for nonalcoholic fatty liver disease. Expert Rev Gastroenterol Hepatol 2019; 13:193-204. [PMID: 30791767 DOI: 10.1080/17474124.2019.1569513] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is one of the most common and increasing liver diseases worldwide with a prevalence of 20-33%. NAFLD may progress to fibrosis, compensated cirrhosis, advanced cirrhosis, or hepatocellular carcinoma. Despite the increasing prevalence of NAFLD, definitive medical treatment has not been established, with the exception of lifestyle modification with exercise. Because of the direct connection via portal vein between the intestines and the liver (gut-gut microbiota-liver axis), gut microbiota and associated dysbiosis have been known as regulators in the pathophysiology of NAFLD. Area covered: New therapeutic approaches for modulation of gut microbiota have been proposed and the effectiveness of new therapies including probiotics, prebiotics, synbiotics, bile acid regulation, absorbent, and fecal microbiota transplantation have been demonstrated in recent several studies. This review focuses on the available evidences for new therapies modulating gut microbiota in the management and the prevention of NAFLD. Expert commentary: Gut-gut microbiota-liver axis may play an important role in the etiology of many liver diseases, including NAFLD. It is logical to seek the manipulation of this axis, and further studies are required to understand the underlying precise mechanisms of microbiota-modulation on NAFLD.
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Affiliation(s)
- Ki Tae Suk
- a Division of Gastroenterology and Hepatology , Hallym University College of Medicine , Chuncheon , South Korea
| | - Dong Joon Kim
- a Division of Gastroenterology and Hepatology , Hallym University College of Medicine , Chuncheon , South Korea
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Tarao K, Nozaki A, Ikeda T, Sato A, Komatsu H, Komatsu T, Taguri M, Tanaka K. Real impact of liver cirrhosis on the development of hepatocellular carcinoma in various liver diseases-meta-analytic assessment. Cancer Med 2019; 8:1054-1065. [PMID: 30791221 PMCID: PMC6434205 DOI: 10.1002/cam4.1998] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 12/27/2018] [Accepted: 01/06/2019] [Indexed: 12/12/2022] Open
Abstract
Background It is well known that the incidence of developing hepatocelluler carcinoma (HCC) is increased in liver cirrhosis of different etiologies. However, comparison of HCC incidence in various liver diseases has not yet been estimated. We surveyed this comparison. Methods The PubMed database was examined (1989‐2017) for studies published in English language regarding the prospective follow‐up results for the development of HCC in various liver diseases. A meta‐analysis was performed for each liver disease. Results The annual incidence (%) of HCC in the non‐cirrhotic stage and cirrhotic stage, and the ratio of HCC incidence in the cirrhotic stage/non‐cirrhotic stage were as follows. (a) hepatitis B virus liver disease: 0.37%→3.23% (8.73‐fold), (b) hepatitis C virus liver diseases: 0.68%→4.81% (7.07‐fold), (c) primary biliary cholangitis (0.26%→1.79%, 6.88‐fold), (d) autoimmune hepatitis (0.19%→0.53%, 2.79‐fold), and (e) NASH (0.03%→1.35%, 45.00‐fold). Regarding primary hemochromatosis and alcoholic liver diseases, only follow‐up studies in the cirrhotic stage were presented, 1.20% and 2.06%, respectively. Conclusions When the liver diseases advance to cirrhosis, the incidence of HCC is markedly increased. The development of HCC must be closely monitored by ultrasonography, magnetic resonance imaging, and computed tomography, irrespective of the different kinds of liver diseases.
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Affiliation(s)
- Kazuo Tarao
- Tarao's Gastroenterological Clinic, Yokohama, Japan
| | - Akito Nozaki
- Gastroenterological Center, Medical Center, Yokohama City University, Yokohama, Japan
| | - Takaaki Ikeda
- Gastroenterology Department, Yokosuka General Hospital Uwamachi, Yokosuka, Japan
| | - Akira Sato
- Division of Gastroenterology, Department of Internal Medicine, St. Marianna University, Yokohama City Seibu Hospital, Yokohama, Japan
| | - Hirokazu Komatsu
- Department of Gastroenterology, Yokohama Municipal Citizen's Hospital, Yokohama, Japan
| | - Tatsuji Komatsu
- Department Clinical Research, National Hospital Organization, Yokohama Medical Center, Yokohama, Japan
| | - Masataka Taguri
- Department of Data Science, Yokohama City University, Yokohama, Japan
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Comparison of Hepatocellular Carcinoma in Patients with Cryptogenic Versus Hepatitis B Etiology: A Study of 1079 Cases Over 3 Decades. Dig Dis Sci 2019; 64:585-590. [PMID: 30327962 DOI: 10.1007/s10620-018-5331-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 10/09/2018] [Indexed: 01/11/2023]
Abstract
BACKGROUND Traditionally in Asia, hepatitis B (HBV) accounts for the majority of hepatocellular carcinoma (HCC), but increasingly, non-viral or nonalcoholic steatohepatitis (NASH) etiology may play a more prominent role with current socioeconomic changes. There remains a paucity in data comparing NASH-HCC to HBV-related HCC. In this study, we explored the differences in clinical characteristics between HBV- and cryptogenic-related HCC. METHODS Patients with HCC seen in the Department of Gastroenterology and Hepatology, Singapore General Hospital were enrolled in an ongoing database since 1980. Patients with HCC attributed to HBV or cryptogenic etiology were identified. Comparison of clinical characteristics was performed between the two groups. RESULTS There were 916 HBV-HCC patients and 163 cryptogenic HCC patients, accounting for 70.9% and 12.6% of the total HCC cases (1292 patients), respectively. Out of the total cohort enrolled from 1980 to 2005, the ratio of cryptogenic to HBV patients was 1:6.7, while from 2006 to the current year, the ratio of cryptogenic to HBV patients has increased significantly to 1:3.9. Relative to patients with HBV, cryptogenic HCC patients were older (67.6 vs. 59.4 years old; p < 0.001), had lower proportion of male patients (69.9% vs. 83.8%; p < 0.001), and had higher incidence of smoking (32.2% vs. 25.8%; p = 0.008). HBV group had higher alanine transaminase (60.9 ± 85.7 U/L vs. 48.0 ± 52.1 U/L; p = 0.003), hemoglobin (12.7 ± 2.28 g/dL vs. 12.0 ± 2.46 g/dL, p < 0.001), albumin (32.9 ± 6.8 g/L vs. 31.3 ± 7.7 g/L; p = 0.007), and prothrombin time (13.2 ± 2.95 s vs. 12.7 ± 2.01 s, p = 0.023), as compared to the cryptogenic group. Cryptogenic HCC patients presented more frequently with unifocal HCC (55.2% vs. 46.5%; p = 0.002). There was no difference in the proportions of patients receiving surgical resection in both groups (23.5% in HBV group vs. 17.9% in cryptogenic group; p = 0.202). Cox regression analysis revealed no survival difference between cryptogenic-related HCC and HBV-related HCC (p = 0.367). CONCLUSION Temporal trends suggest that HCC attributed to HBV is on the decline, while cryptogenic- or NASH-related HCC is an emerging clinical entity. A paradigm shift in approach to screening, surveillance, and management of HCC may be required in view of the changing landscape of HCC epidemiology into an increasing non-viral etiology.
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Chongmelaxme B, Phisalprapa P, Sawangjit R, Dilokthornsakul P, Chaiyakunapruk N. Weight Reduction and Pioglitazone are Cost-Effective for the Treatment of Non-Alcoholic Fatty Liver Disease in Thailand. PHARMACOECONOMICS 2019; 37:267-278. [PMID: 30430467 DOI: 10.1007/s40273-018-0736-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
INTRODUCTION This study evaluated lifetime liver-related clinical outcomes, costs of treatment, and the cost-effectiveness of treatment options for non-alcoholic fatty liver disease (NAFLD) in Thailand. METHODS A cost-utility analysis using a lifetime Markov model was conducted among Thai patients with NAFLD, from a societal perspective. Pioglitazone, vitamin E, a weight reduction program, and usual care were investigated, with the outcomes of interest being the number of cirrhosis and hepatocellular carcinoma (HCC) cases, life expectancy, quality-adjusted life-years (QALYs), lifetime costs, and the incremental cost-effectiveness ratios (ICERs). One-way and probabilistic sensitivity analyses were performed. RESULTS When compared with usual care, a weight reduction program can prevent cirrhosis and HCC cases by 13.91% (95% credible interval [CrI] 0.97, 20.59) and 2.12% (95% CrI 0.43, 4.56), respectively; pioglitazone can prevent cirrhosis and HCC cases by 9.30% (95% CrI -2.52, 15.24) and 1.42% (95% CrI -0.18, 3.74), respectively; and vitamin E can prevent cirrhosis and HCC cases by 7.32% (95% CrI -4.64, 15.56) and 1.12% (95% CrI -0.81, 3.44), respectively. Estimated incremental life expectancy and incremental QALYs for all treatment options compared with usual care were approximately 0.06 years and 0.07 QALYs, respectively. The lifetime costs of both a weight reduction program and pioglitazone were less than usual care, while vitamin E was $3050 (95% CrI 2354, 3650). The weight reduction program dominated all other treatment options. The probability of being cost-effective in Thailand's willingness-to-pay threshold ($4546/QALY gained) was 76% for the weight reduction program, 22% for pioglitazone, 2% for usual care, and 0% for vitamin E. CONCLUSIONS A weight reduction program can prevent cirrhosis and HCC occurrences, and dominates all other treatment options. Pioglitazone and vitamin E demonstrated a trend towards decreasing the number of cirrhosis and HCC cases.
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Affiliation(s)
- Bunchai Chongmelaxme
- Center of Pharmaceutical Outcomes Research, Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, 65000, Phitsanulok, Thailand
| | - Pochamana Phisalprapa
- Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Ratree Sawangjit
- Clinical Pharmacy Research Unit, Department of Clinical Pharmacy, Faculty of Pharmacy, Mahasarakham University, Mahasarakham, Thailand
- School of Pharmacy, Monash University Malaysia, Selangor, Malaysia
| | - Piyameth Dilokthornsakul
- Center of Pharmaceutical Outcomes Research, Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, 65000, Phitsanulok, Thailand.
| | - Nathorn Chaiyakunapruk
- Center of Pharmaceutical Outcomes Research, Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, 65000, Phitsanulok, Thailand.
- School of Pharmacy, Monash University Malaysia, Selangor, Malaysia.
- School of Pharmacy, University of Wisconsin, Wisconsin, MA, USA.
- Asian Centre for Evidence Synthesis in Population, Implementation and Clinical Outcomes (PICO), Health and Well-Being Cluster, Global Asia in the 21st Century (GA21) Platform, Monash University Malaysia, Bandar Sunway, Selangor, Malaysia.
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Klebanoff MJ, Corey KE, Samur S, Choi JG, Kaplan LM, Chhatwal J, Hur C. Cost-effectiveness Analysis of Bariatric Surgery for Patients With Nonalcoholic Steatohepatitis Cirrhosis. JAMA Netw Open 2019; 2:e190047. [PMID: 30794300 PMCID: PMC6484583 DOI: 10.1001/jamanetworkopen.2019.0047] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
IMPORTANCE Obesity is the most common risk factor for nonalcoholic steatohepatitis (NASH), the progressive form of nonalcoholic fatty liver disease that can lead to cirrhosis and hepatocellular carcinoma. Weight loss can be an effective treatment for obesity and may slow the progression of advanced liver disease. OBJECTIVE To assess the cost-effectiveness of bariatric surgery in patients with NASH and compensated cirrhosis. DESIGN, SETTING, AND PARTICIPANTS This economic evaluation study used a Markov-based state-transition model to simulate the benefits and risks of laparoscopic sleeve gastrectomy (SG), laparoscopic Roux-en-Y gastric bypass (GB), and intensive lifestyle intervention (ILI) compared with usual care in patients with NASH and compensated cirrhosis and varying baseline weight (overweight, mild obesity, moderate obesity, and severe obesity). Patients faced varied risks of perioperative mortality and complications depending on the type of surgery they underwent. Data were collected on March 22, 2017. MAIN OUTCOMES AND MEASURES Life-years, quality-adjusted life-years (QALYs), costs (in 2017 $US), and incremental cost-effectiveness ratios (ICERs) were calculated. RESULTS Demographic characteristics of the patient population were based on a previously published prospective study (n = 161). Patients in the model were 41.0% female, and the base case age was 54 years. Compared with usual care, SG was associated with an increase in QALYs of 0.263 to 1.180 (bounds of ranges represent overweight to severe obesity); GB, 0.263 to 1.207; and ILI, 0.004 to 0.216. Sleeve gastrectomy was also associated with an increase in life-years of 0.693 to 1.930; GB, 0.694 to 1.947; and ILI, 0.012 to 0.114. With usual care, expected life-years in overweight, mild obesity, moderate obesity, and severe obesity were 12.939, 11.949, 10.976, and 10.095, respectively. With usual care, QALY in overweight was 6.418; mild obesity, 5.790; moderate obesity, 5.186; and severe obesity, 4.577. Sleeve gastrectomy was the most cost-effective option for patients across all weight classes assessed: ICER for SG in patients with overweight was $66 119 per QALY; mild obesity, $18 716 per QALY; moderate obesity, $10 274 per QALY; and severe obesity, $6563 per QALY. A threshold analysis on the procedure cost of GB found that for GB to be cost-effective, the cost of the surgery must be decreased from its baseline value of $28 734 by $4889 for mild obesity, by $3189 for moderate obesity, and by $2289 for severe obesity. In overweight patients, GB involved fewer QALYs than SG, and thus decreasing the cost of surgery would not result in cost-effectiveness. CONCLUSIONS AND RELEVANCE Bariatric surgery could be highly cost-effective in patients with NASH compensated cirrhosis and obesity or overweight. The findings from this analysis suggest that it can inform clinical trials evaluating the effect of bariatric procedures in patients with NASH cirrhosis, including those with a lower body mass index.
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Affiliation(s)
| | - Kathleen E. Corey
- Gastroenterology Division, Massachusetts General Hospital, Boston
- Harvard Medical School, Boston, Massachusetts
| | - Sumeyye Samur
- Institute for Clinical and Economic Review, Boston, Massachusetts
- Massachusetts General Hospital Institute for Technology Assessment, Boston
| | - Jin G. Choi
- Massachusetts General Hospital Institute for Technology Assessment, Boston
| | - Lee M. Kaplan
- Gastroenterology Division, Massachusetts General Hospital, Boston
- Harvard Medical School, Boston, Massachusetts
| | - Jagpreet Chhatwal
- Gastroenterology Division, Massachusetts General Hospital, Boston
- Harvard Medical School, Boston, Massachusetts
- Massachusetts General Hospital Institute for Technology Assessment, Boston
| | - Chin Hur
- Division of Digestive and Liver Diseases, Department of Medicine,Columbia University Medical Center, New York, New York
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Younossi ZM, Tampi R, Priyadarshini M, Nader F, Younossi IM, Racila A. Burden of Illness and Economic Model for Patients With Nonalcoholic Steatohepatitis in the United States. Hepatology 2019; 69:564-572. [PMID: 30180285 DOI: 10.1002/hep.30254] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 08/07/2018] [Indexed: 01/01/2023]
Abstract
Nonalcoholic steatohepatitis (NASH) is the progressive form of nonalcoholic fatty liver disease. Our aim was to estimate the total economic burden of NASH and advanced NASH in the United States. We constructed lifetime Markov models for all stages of NASH and a separate model to specifically identify the increased burden of advanced NASH (fibrosis stage >3). The models comprised patients aged 18+, who moved through seven different health states. We used a lifetime horizon with 1-year cycles for each transition. Cohort size was estimated using US population data, and prevalence and incidence rates were obtained from the literature. Transition probabilities between states were derived from meta-analyses. Costs included inpatient, outpatient, professional services, emergency department, and drug costs, which were obtained from the Center for Medicare and Medicaid Services Fee Schedule 2017 and published data. All future costs were discounted at an annual rate of 3%. Our models estimated that there are 6.65 million adults (18+ years old) with NASH in the United States and that there were 232,000 incident cases in 2017. Lifetime costs of all NASH patients in the United States in 2017 will be $222.6 billion, and the cost of the advanced NASH population will be $95.4 billion. Conclusion: NASH, especially advanced NASH, is associated with high lifetime economic burden; in the absence of treatment, the total direct costs of illness for these patients will continue to grow, and these costs would be even greater if the societal costs are included.
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Affiliation(s)
- Zobair M Younossi
- Betty and Guy Beatty Center for Integrated Research, Falls Church, VA.,Department of Medicine, Center for Liver Diseases, Inova Fairfax Hospital, Falls Church, VA
| | - Radhika Tampi
- Betty and Guy Beatty Center for Integrated Research, Falls Church, VA
| | | | - Fatema Nader
- Center for Outcomes Research in Liver Diseases, Washington, DC
| | | | - Andrei Racila
- Betty and Guy Beatty Center for Integrated Research, Falls Church, VA.,Center for Outcomes Research in Liver Diseases, Washington, DC
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Reig M, Gambato M, Man NK, Roberts JP, Victor D, Orci LA, Toso C. Should Patients With NAFLD/NASH Be Surveyed for HCC? Transplantation 2019; 103:39-44. [DOI: 10.1097/tp.0000000000002361] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Danin PE, Anty R, Patouraux S, Raucoules-Aimé M, Gugenheim J, Tran A, Gual P, Iannelli A. Non-invasive Evaluation of NAFLD with Indocyanine Green Clearance Test: a Preliminary Study in Morbidly Obese Patients Undergoing Bariatric Surgery. Obes Surg 2018; 28:735-742. [PMID: 28875438 DOI: 10.1007/s11695-017-2914-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Overweight and obesity dramatically increased in the last years. Hepatic complication of obesity, integrated in the term of non-alcoholic fatty liver disease (NAFLD), is a spectrum of abnormality ranging from steatosis to non-alcoholic steatohepatitis (NASH), potentially leading to cirrhosis. Liver biopsy remains the gold standard to evaluate the stage of NAFLD; however, the procedure is invasive. The indocyanine green (ICG) clearance test is performed since years to assess hepatic function before partial hepatectomy, or after liver transplantation. This study was designed to detect liver complications with the ICG clearance test in a population of obese patients scheduled for bariatric surgery. METHODS In a prospective cohort study, morbidly obese individuals receiving bariatric surgery with scheduled hepatic biopsies were investigated. Liver function was determined by the ICG test preoperatively, and blood samples were collected. Liver biopsy specimens were obtained for each patient and classified according to the NAFLD activity score (NAS) by a single pathologist that was blinded to the results of the ICG test. RESULTS Twenty-six patients were included (7 male and 19 female). The mean age of participants was 45.8 years; the mean body mass index was 41.4 kg/m2. According to the NAS, 6 (23.1%) patients revealed manifest NASH, and 5 patients were considered borderline (19.2%). A closed correlation was observed between the ICG clearance test and hepatic steatosis (r = 0.43, p = 0.03), NAS (r = 0.44, p = 0.025), and fibrosis (r = 0.49, p = 0.01). CONCLUSIONS In obese patients, non-invasive evaluation of liver function with the indocyanine green clearance test correlated with histological features of NAFLD. This may detect non-invasively hepatopathy in obese population and could motive biopsy.
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Affiliation(s)
- Pierre Eric Danin
- Anesthesia and Intensive care, L'Archet 2 Hospital, University Hospital of Nice, Archet 2 151 Route Saint Antoine de Ginestière, BP 3079, 062014, Nice, Cedex 3, France.,INSERM, U1065, C3M, Team 8 « Hepatic complications in obesity », 151 route Saint Antoine de Ginestière, BP 2 3194, 06204, Nice, Cedex 3, France.,Université Côte d'Azur, Nice, France
| | - Rodolphe Anty
- INSERM, U1065, C3M, Team 8 « Hepatic complications in obesity », 151 route Saint Antoine de Ginestière, BP 2 3194, 06204, Nice, Cedex 3, France.,Université Côte d'Azur, Nice, France.,CHU of Nice, Digestive Center, L'Archet 2 Hospital, University Hospital of Nice, Nice, France.,Digestive Unit, Archet 2 Hospital, 151 Route Saint Antoine de Ginestière, BP 3079, 06204, Nice, Cedex 3, France
| | - Stephanie Patouraux
- INSERM, U1065, C3M, Team 8 « Hepatic complications in obesity », 151 route Saint Antoine de Ginestière, BP 2 3194, 06204, Nice, Cedex 3, France.,Université Côte d'Azur, Nice, France.,CHU of Nice, Biological Center, Pasteur Hospital, University Hospital of Nice, Nice, France.,Biological Center, Archet 2 Hospital, 151 Route Saint Antoine de Ginestière BP 3079, Nice, 06204, Cedex 3, France
| | - Marc Raucoules-Aimé
- Anesthesia and Intensive care, L'Archet 2 Hospital, University Hospital of Nice, Archet 2 151 Route Saint Antoine de Ginestière, BP 3079, 062014, Nice, Cedex 3, France.,Université Côte d'Azur, Nice, France
| | - Jean Gugenheim
- INSERM, U1065, C3M, Team 8 « Hepatic complications in obesity », 151 route Saint Antoine de Ginestière, BP 2 3194, 06204, Nice, Cedex 3, France.,Université Côte d'Azur, Nice, France.,CHU of Nice, Digestive Center, L'Archet 2 Hospital, University Hospital of Nice, Nice, France.,Department of Digestive Surgery, Hôpital Archet 2, 151 Route Saint Antoine de Ginestière, BP3079, 06204, Nice, Cedex 3, France
| | - Albert Tran
- INSERM, U1065, C3M, Team 8 « Hepatic complications in obesity », 151 route Saint Antoine de Ginestière, BP 2 3194, 06204, Nice, Cedex 3, France.,Université Côte d'Azur, Nice, France.,CHU of Nice, Digestive Center, L'Archet 2 Hospital, University Hospital of Nice, Nice, France.,Digestive Unit, Archet 2 Hospital, 151 Route Saint Antoine de Ginestière, BP 3079, 06204, Nice, Cedex 3, France
| | - Philippe Gual
- INSERM, U1065, C3M, Team 8 « Hepatic complications in obesity », 151 route Saint Antoine de Ginestière, BP 2 3194, 06204, Nice, Cedex 3, France. .,Université Côte d'Azur, Nice, France. .,Inserm U1065, Bâtiment Universitaire ARCHIMED, Equipe 8 "Complications hépatiques de l'obésité", 151 route Saint Antoine de Ginestière, BP 2 3194, 06204, Nice, Cedex 3, France.
| | - Antonio Iannelli
- INSERM, U1065, C3M, Team 8 « Hepatic complications in obesity », 151 route Saint Antoine de Ginestière, BP 2 3194, 06204, Nice, Cedex 3, France. .,Université Côte d'Azur, Nice, France. .,CHU of Nice, Digestive Center, L'Archet 2 Hospital, University Hospital of Nice, Nice, France. .,Department of Digestive Surgery, Hôpital Archet 2, 151 Route Saint Antoine de Ginestière, BP3079, 06204, Nice, Cedex 3, France. .,Centre Hospitalier Universitaire de Nice, Service de Chirurgie Digestive et Transplantation Hépatique, Hôpital de l'Archet, Pôle Digestif, 151 route Saint Antoine de Ginestière, 06200, Nice, Cedex, France.
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Portal lymphadenopathy predicts non-alcoholic steatohepatitis and advanced fibrosis in non-alcoholic fatty liver disease. PLoS One 2018; 13:e0207479. [PMID: 30500848 PMCID: PMC6267957 DOI: 10.1371/journal.pone.0207479] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Accepted: 10/31/2018] [Indexed: 01/11/2023] Open
Abstract
Background and aim The progression of non-alcoholic fatty liver disease (NAFLD) to non-alcoholic steatohepatitis (NASH) is believed to be the driver for future development of fibrosis and cirrhosis. Nevertheless, there remains a clear deficit in non-invasive methods for the diagnosis of NASH. The aim of the present study was to evaluate the prevalence of portal lymphadenopathy (PL) in biopsy- proven NAFLD patients and to determine whether PL correlates with NAFLD stage and severity. Methods A retrospective study included biopsy-proven NAFLD patients with up to date (within one year) abdominal imaging by computed tomography (CT) and/or magnetic resonance imaging (MRI). Patients were clustered into three groups based on their NAFLD Activity Score (NAS): NAS1-2 (mild), NAS3-4 (moderate) and NAS≥5 (advanced). We Assessed for association between PL and other clinical and laboratory findings with NAS, NAS components and fibrosis. Results Seventy-five patients with NAFLD and no other competing etiologies for liver diseases or PL were included. The mean age was 50.7±14.84 years with male predominance (N = 47, 62.7%). Twenty-five (33.3%), 37 (49.3%) and 13 (17.3%) patients had mild, moderate and advanced NAS, respectively. PL significantly correlated with advanced NAS ≥ 5 (Fisher’s (F) 9.5, P = 0.009). Correlation was driven mainly by a link to hepatocytes ballooning (F of 5.9, P = 0.043). In addition, PL significantly correlated with portal inflammation (F 4.29, P = 0.038). As for hepatic fibrosis, the F test wasn’t significant, though spearman’s coefficient (SC) was significant (0.277, P = 0.012). On multivariate analysis, PL was identified as a sole predictor of advanced NAS score (Odds ratio of 2.68, P = 0.002). Incorporation of PL into noninvasive fibrosis scores improved their diagnostic yield. Conclusion PL predicts severity of NAFLD. Its presence may serve as a novel radiological marker for NAFLD/NASH differentiation and disease progression.
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Wildman-Tobriner B, Middleton MM, Moylan CA, Rossi S, Flores O, Chang ZA, Abdelmalek MF, Sirlin CB, Bashir MR. Association Between Magnetic Resonance Imaging-Proton Density Fat Fraction and Liver Histology Features in Patients With Nonalcoholic Fatty Liver Disease or Nonalcoholic Steatohepatitis. Gastroenterology 2018; 155:1428-1435.e2. [PMID: 30031769 PMCID: PMC6456892 DOI: 10.1053/j.gastro.2018.07.018] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 06/15/2018] [Accepted: 07/09/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND & AIMS Patients with nonalcoholic fatty liver disease (NAFLD) or nonalcoholic steatohepatitis (NASH) often require histologic assessment via liver biopsy. Magnetic resonance imaging (MRI)-based methods for measuring liver triglycerides based on proton density fat fraction (PDFF) are increasingly used as a noninvasive tool to identify patients with hepatic steatosis and to assess for change in liver fat over time. We aimed to determine whether MRI-PDFF accurately reflects a variety of liver histology features in patients with NAFLD or NASH. METHODS We performed a retrospective analysis of pooled data from 3 phase 2a trials of pharmacotherapies for NAFLD or NASH. We collected baseline clinical, laboratory, and histopathology data on all subjects who had undergone MRI analysis in 1 of the trials. We assessed the relationship between liver PDFF values and liver histologic findings using correlation and area under the receiver operating characteristic (AUROC) analyses. As an ancillary analysis, we also simulated a clinical trial selection process and calculated subject exclusion rates and differences in population characteristics caused by PDFF inclusion thresholds of 6% to 15%. RESULTS In 370 subjects, the mean baseline PDFF was 17.4% ± 8.6%. Baseline PDFF values correlated with several histopathology parameters, including steatosis grade (r = 0.78; P < .001), NAFLD activity score (NAS, r = 0.54; P < .001), and fibrosis stage (r = -0.59; P < .001). However, PDFF did not accurately identify patients with NAS ≥ 4 (AUROC = 0.72) or fibrosis stage ≥3 (AUROC = 0.66). In a theoretical trial of these subjects, exclusion rates increased as PDFF minimum threshold level increased. There were no significant differences in cohort demographics when PDFF thresholds ranging from 6% to 15% were used, and differences in laboratory and histopathology data were small. CONCLUSIONS In an analysis of patients with NAFLD or NASH, we determined that although The MRI-PDFF correlated with steatosis grade and NAS, and inversely with fibrosis stage, it was suboptimal in identification of patients with NAS >4 or advanced fibrosis. Although MRI-PDFF is an important imaging biomarker for continued evaluation of this patient population, liver biopsy analysis is still necessary.
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Affiliation(s)
| | - Michael M. Middleton
- Liver Imaging Group, Department of Radiology, UC San Diego, San Diego, California
| | - Cynthia A. Moylan
- Department of Medicine, Durham Veterans Affairs Medical Center, Durham, North Carolina,Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | - Stephen Rossi
- Clinical Development, NGM Biopharmaceuticals, South San Francisco, California
| | | | | | - Manal F. Abdelmalek
- Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | - Claude B. Sirlin
- Liver Imaging Group, Department of Radiology, UC San Diego, San Diego, California
| | - Mustafa R. Bashir
- Department of Radiology, Duke University Medical Center, Durham, North Carolina,Center for Advanced Magnetic Resonance Development, Duke University Medical Center, Durham, North
Carolina
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Cho MS, Kim SY, Suk KT, Kim BY. Modulation of gut microbiome in nonalcoholic fatty liver disease: pro-, pre-, syn-, and antibiotics. J Microbiol 2018; 56:855-867. [PMID: 30377993 DOI: 10.1007/s12275-018-8346-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 08/08/2018] [Accepted: 08/21/2018] [Indexed: 02/07/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is one of the most common types of liver diseases worldwide and its incidence continues to increase. NAFLD occurs when the body can no longer effectively store excess energy in the adipose tissue. Despite the increasing prevalence of NAFLD, making lifestyle changes, including increased exercise, is often an elusive goal for patients with NAFLD. The liver directly connects to the gut-gastrointestinal milieu via the portal vein, which are all part of the gut-liver axis. Therefore, the gut-microbiome and microbial products have been actively studied as likely key factors in NAFLD pathophysiology. Hence, dysbiosis of the gut microbiome and therapeutic manipulation of the gut-liver axis are being investigated. Novel therapeutic approaches for modulating gut microbiota through the administration of probiotics, prebiotics, synbiotics, and antibiotics have been proposed with numerous promising initial reports on the effectiveness and clinical applications of these approaches. This review delves into the current evidence on novel therapies that modulate gut microbiota and discusses ongoing clinical trials targeting the gut-liver axis for the management and prevention of NAFLD.
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Affiliation(s)
| | - Sang Yeol Kim
- Division of Gastroenterology and Hepatology, College of Medicine, Hallym University, Chuncheon, 24253, Republic of Korea
| | - Ki Tae Suk
- Division of Gastroenterology and Hepatology, College of Medicine, Hallym University, Chuncheon, 24253, Republic of Korea.
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94
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Stine JG, Wentworth BJ, Zimmet A, Rinella ME, Loomba R, Caldwell SH, Argo CK. Systematic review with meta-analysis: risk of hepatocellular carcinoma in non-alcoholic steatohepatitis without cirrhosis compared to other liver diseases. Aliment Pharmacol Ther 2018; 48:696-703. [PMID: 30136293 PMCID: PMC7495494 DOI: 10.1111/apt.14937] [Citation(s) in RCA: 201] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 04/07/2018] [Accepted: 07/18/2018] [Indexed: 12/12/2022]
Abstract
BACKGROUND Given the lack of long-term prospective studies, it is challenging for clinicians to make informed decisions about screening and treatment decisions regarding the risk of hepatocellular carcinoma (HCC) in patients with non-alcoholic steatohepatitis (NASH) who do not have cirrhosis. AIM To characterise the pooled risk of HCC in the non-cirrhosis population. METHODS Published studies were identified through April 2016 in MEDLINE, Scopus, Science Citation Index, AMED and the Cochrane Library. Two independent reviewers screened citations and extracted data. Random effect odds ratios (OR) were calculated to obtain aggregate estimates of effect size between NASH and non-NASH groups. Between-study variability and heterogeneity were assessed. RESULTS Nineteen studies with 168 571 participants were included. Eighty-six per cent of included subjects had cirrhosis. The prevalence of HCC in non-cirrhotic NASH was 38.0%; among other aetiologies in non-cirrhotics, it was 14.2% (P < 0.001). Non-cirrhotic NASH subjects were at greater odds of developing HCC than non-cirrhotic subjects of other aetiologies (OR 2.61, 95% CI 1.27-5.35, P = 0.009). When examining all NASH subjects either with or without cirrhosis, those with NASH as the underlying liver disease did not have a significantly increased risk of HCC (OR 1.43, 95% CI 0.77-2.65, P = 0.250). CONCLUSIONS In non-cirrhotic subjects, those with NASH have a higher risk of HCC compared to other aetiologies of liver disease. Further study investigating the risk factors of HCC among non-cirrhotic NASH patients is needed.
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Affiliation(s)
- Jonathan G. Stine
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Brian J. Wentworth
- Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Alex Zimmet
- Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Mary E. Rinella
- Division of Gastroenterology & Hepatology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Rohit Loomba
- NAFLD Research Center, Division of Gastroenterology & Hepatology, Department of Medicine, University of California San Diego, San Diego, California, USA
| | - Stephen H. Caldwell
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
| | - Curtis K. Argo
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
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Vilar-Gomez E, Calzadilla-Bertot L, Wai-Sun Wong V, Castellanos M, Aller-de la Fuente R, Metwally M, Eslam M, Gonzalez-Fabian L, Alvarez-Quiñones Sanz M, Conde-Martin AF, De Boer B, McLeod D, Hung Chan AW, Chalasani N, George J, Adams LA, Romero-Gomez M. Fibrosis Severity as a Determinant of Cause-Specific Mortality in Patients With Advanced Nonalcoholic Fatty Liver Disease: A Multi-National Cohort Study. Gastroenterology 2018; 155:443-457.e17. [PMID: 29733831 DOI: 10.1053/j.gastro.2018.04.034] [Citation(s) in RCA: 510] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 04/11/2018] [Accepted: 04/27/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Little is known about the natural course of nonalcoholic fatty liver disease (NAFLD) with advanced fibrosis. We describe long-term outcomes and evaluate the effects of clinical and histologic parameters on disease progression in patients with advanced NAFLD. METHODS We conducted a multi-national study of 458 patients with biopsy-confirmed NAFLD with bridging fibrosis (F3, n = 159) or compensated cirrhosis (222 patients with Child-Turcotte-Pugh scores of A5 and 77 patients with scores of A6), evaluated from April 1995 through November 2013 and followed until December 2016, death, or liver transplantation at hepatology centers in Spain, Australia, Hong Kong, and Cuba. Biopsies were re-evaluated and scored; demographic, clinical, laboratory, and pathology data for each patient were collected from the time of liver biopsy collection. Cox proportional and competing risk models were used to estimate rates of transplantation-free survival and major clinical events and to identify factors associated with outcomes. RESULTS During a mean follow-up time of 5.5 years (range, 2.7-8.2 years), 37 patients died, 37 received liver transplants, 88 had initial hepatic decompensation events, 41 developed hepatocellular carcinoma, 14 had vascular events, and 30 developed nonhepatic cancers. A higher proportion of patients with F3 fibrosis survived transplantation-free for 10 years (94%; 95% confidence interval [CI], 86%-99%) than of patients with cirrhosis and Child-Turcotte-Pugh A5 (74%; 95% CI, 61%-89%) or Child-Turcotte-Pugh A6 (17%; 95% CI, 6%-29%). Patients with cirrhosis were more likely than patients with F3 fibrosis to have hepatic decompensation (44%; 95% CI, 32%-60% vs 6%, 95% CI, 2%-13%) or hepatocellular carcinoma (17%; 95% CI, 8%-31% vs 2.3%, 95% CI, 1%-12%). The cumulative incidence of vascular events was higher in patients with F3 fibrosis (7%; 95% CI, 3%-18%) than cirrhosis (2%; 95% CI, 0%-6%). The cumulative incidence of nonhepatic malignancies was higher in patients with F3 fibrosis (14%; 95% CI, 7%-23%) than cirrhosis (6%; 95% CI, 2%-15%). Death or transplantation, decompensation, and hepatocellular carcinoma were independently associated with baseline cirrhosis and mild (<33%) steatosis, whereas moderate alcohol consumption was associated with these outcomes only in patients with cirrhosis. CONCLUSIONS Patients with NAFLD cirrhosis have predominantly liver-related events, whereas those with bridging fibrosis have predominantly nonhepatic cancers and vascular events.
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Affiliation(s)
- Eduardo Vilar-Gomez
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indiana; Unit for the Clinical Management of Digestive Diseases. Centro para la Investigacion Biomedica en Red de Enfermedades Hepaticas y Digestivas, Virgen del Rocio University Hospital, University of Seville, Seville, Spain.
| | - Luis Calzadilla-Bertot
- Medical School, Faculty of Health and Medical Sciences, the University of Western Australia, Nedlands, Australia
| | - Vincent Wai-Sun Wong
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - Marlen Castellanos
- Department of Hepatology, National Institute of Gastroenterology, Havana, Cuba
| | - Rocio Aller-de la Fuente
- Department of Digestive Disease, Institute of Endocrinology and Nutrition, University of Valladolid, Valladolid, Spain
| | - Mayada Metwally
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, New South Wales, Australia
| | - Mohammed Eslam
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, New South Wales, Australia
| | | | | | | | - Bastiaan De Boer
- Department of Pathology, Sir Charles Gairdner Hospital, Perth, Australia
| | - Duncan McLeod
- Department of Anatomical Pathology, Institute of Clinical Pathology and Medical Research, Westmead Hospital, Sidney, New South Wales, Australia
| | - Anthony Wing Hung Chan
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong
| | - Naga Chalasani
- Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indiana
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, New South Wales, Australia
| | - Leon A Adams
- Medical School, Faculty of Health and Medical Sciences, the University of Western Australia, Nedlands, Australia
| | - Manuel Romero-Gomez
- Unit for the Clinical Management of Digestive Diseases. Centro para la Investigacion Biomedica en Red de Enfermedades Hepaticas y Digestivas, Virgen del Rocio University Hospital, University of Seville, Seville, Spain
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96
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Li B, Zhang C, Zhan YT. Nonalcoholic Fatty Liver Disease Cirrhosis: A Review of Its Epidemiology, Risk Factors, Clinical Presentation, Diagnosis, Management, and Prognosis. Can J Gastroenterol Hepatol 2018; 2018:2784537. [PMID: 30065915 PMCID: PMC6051295 DOI: 10.1155/2018/2784537] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 05/31/2018] [Accepted: 06/13/2018] [Indexed: 12/11/2022] Open
Abstract
Cirrhosis is the common end stage of a number of chronic liver conditions and a significant cause of morbidity and mortality. With the growing epidemic of obesity and metabolic syndrome, nonalcoholic fatty liver disease (NAFLD) has become the most common cause of chronic liver disease worldwide and will become one of the leading causes of cirrhosis. Increased awareness and understanding of NAFLD cirrhosis are essential. To date, there has been no published systematic review on NAFLD cirrhosis. Thus, this article reviews recent studies on the epidemiology, risk factors, clinical presentation, diagnosis, management, and prognosis of NAFLD cirrhosis.
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Affiliation(s)
- Bei Li
- Department of Gastroenterology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Chuan Zhang
- Department of Gastroenterology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Yu-Tao Zhan
- Department of Gastroenterology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
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97
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Future of Treatment for Nonalcoholic Steatohepatitis: Can the Use of Safe, Evidence-Based, Clinically Proven Supplements Provide the Answer to the Unmet Need? Dig Dis Sci 2018; 63:1726-1736. [PMID: 29679298 DOI: 10.1007/s10620-018-5080-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 04/16/2018] [Indexed: 02/07/2023]
Abstract
The epidemic of nonalcoholic fatty liver disease (NAFLD) has created a real and unmet therapeutic need. The long regulatory pathway and the focus on selected subsets of patients with established and advanced disease are some of the current obstacles to providing effective treatment for the majority of NAFLD patients. The complexity of the disease pathogenesis, which involves multiple mechanisms, requires targeting of more than one pathway or a combination-based therapy. Although the drugs being developed may prevent progression to cirrhosis or may decrease negative liver outcomes, their effects on cardiometabolic health and cancer prevention remain unknown. Providing expensive compounds to a large proportion of the population for long-term use would place an economic burden on health care providers. Thus, there is a missed opportunity for early intervention in the course of the disease, by providing agents that improve cardiometabolic status and the progression of fatty liver toward steatohepatitis. Several natural supplements have the potential to meet these needs. This review discusses some of the major obstacles to drug development for NASH treatment. Milestones in bringing evidenced-based, scientifically proven, patent-protected, clinically tested, safe compounds to patients with NAFLD or NASH within a relatively short period of time are presented. The regulatory, intellectual property, manufacturing, and clinical development steps, along with applicable timelines, are discussed. These compounds may provide a possible solution to the challenges associated with the treatment of the majority of patients.
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Abstract
Non-alcoholic fatty liver disease (NAFLD) is the commonest cause of chronic liver disease in the Australian population, although precise estimates of prevalence are lacking. NAFLD may progress to liver fibrosis, cirrhosis, decompensated liver disease, and liver cancer and is becoming an increasingly common indication for liver transplantation in Australia and New Zealand. There is an extrahepatic burden of NAFLD extending beyond the liver, which is manifested by an increased risk of developing cardiovascular disease, diabetes, and chronic renal impairment, all of which are common causes of morbidity in the Australian population. Early recognition of those patients at high risk of developing advanced liver disease is essential in order to target those who will benefit from intensive lifestyle modification. In this review, we present data on the epidemiology of NAFLD within Australia, its associated health burden in terms of hepatic and extrahepatic complications, common clinical presentations, and indications for treatment. We also propose a research agenda that highlights knowledge needed to improve diagnosis and management specific to the Australian context.
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Affiliation(s)
- Suzanne E Mahady
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.,Department of Gastroenterology, Royal Melbourne Hospital, Parkville, Victoria, Australia
| | - Leon A Adams
- Medical School, University of Western Australia, Nedlands, Western Australia, Australia.,Department of Hepatology, Sir Charles Gairdner Hospital, Nedlands, Western Australia, Australia
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99
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Borrelli A, Bonelli P, Tuccillo FM, Goldfine ID, Evans JL, Buonaguro FM, Mancini A. Role of gut microbiota and oxidative stress in the progression of non-alcoholic fatty liver disease to hepatocarcinoma: Current and innovative therapeutic approaches. Redox Biol 2018; 15:467-479. [PMID: 29413959 PMCID: PMC5975181 DOI: 10.1016/j.redox.2018.01.009] [Citation(s) in RCA: 175] [Impact Index Per Article: 29.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 01/10/2018] [Accepted: 01/17/2018] [Indexed: 02/07/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) represents the most common chronic liver disease in industrialized countries. NAFLD progresses through the inflammatory phase of non-alcoholic steatohepatitis (NASH) to fibrosis and cirrhosis, with some cases developing liver failure or hepatocellular carcinoma (HCC). Liver biopsy remains the gold standard approach to a definitive diagnosis of NAFLD and the distinction between simple steatosis and NASH. The pathogenesis of NASH is still not clear. Several theories have been proposed ranging from the "Two Hit Theory" to the "Multiple Hit Theory". However, the general consensus is that the gut microbiota, oxidative stress, and mitochondrial damage play key roles in the pathogenesis of NASH. The interaction between the gut epithelia and some commensal bacteria induces the rapid generation of reactive oxygen species (ROS). The main goal of any therapy addressing NASH is to reverse or prevent progression to liver fibrosis/cirrhosis. This problem represents the first "Achilles' heel" of the new molecules being evaluated in most ongoing clinical trials. The second is the inability of these molecules to reach the mitochondria, the primary sites of energy production and ROS generation. Recently, a variety of non-pharmacological and pharmacological treatment approaches for NASH have been evaluated including vitamin E, the thiazolidinediones, and novel molecules related to NASH pathogenesis (including obeticholic acid and elafibranor). Recently, a new isoform of human manganese superoxide dismutase (MnSOD) was isolated and obtained in a synthetic recombinant form designated rMnSOD. This protein has been shown to be a powerful antioxidant capable of mediating ROS dismutation, penetrating biological barriers via its uncleaved leader peptide, and reducing portal hypertension and fibrosis in rats affected by liver cirrhosis. Based on these distinctive characteristics, it can be hypothesized that this novel recombinant protein (rMnSOD) potentially represents a new and highly efficient adjuvant therapy to counteract the progression from NASH to HCC.
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Affiliation(s)
- Antonella Borrelli
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G Pascale", 80131 Napoli, Italy.
| | - Patrizia Bonelli
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G Pascale", 80131 Napoli, Italy
| | - Franca Maria Tuccillo
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G Pascale", 80131 Napoli, Italy
| | | | | | - Franco Maria Buonaguro
- Molecular Biology and Viral Oncology Unit, Istituto Nazionale Tumori IRCCS "Fondazione G Pascale", 80131 Napoli, Italy
| | - Aldo Mancini
- Leadhexa Biotechnologies Inc., Belvedere, CA, USA
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100
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D'Amico G, Morabito A, D'Amico M, Pasta L, Malizia G, Rebora P, Valsecchi MG. Clinical states of cirrhosis and competing risks. J Hepatol 2018; 68:563-576. [PMID: 29111320 DOI: 10.1016/j.jhep.2017.10.020] [Citation(s) in RCA: 295] [Impact Index Per Article: 49.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Revised: 09/26/2017] [Accepted: 10/24/2017] [Indexed: 12/12/2022]
Abstract
The clinical course of cirrhosis is mostly determined by the progressive increase of portal hypertension, hyperdynamic circulation, bacterial translocation and activation of systemic inflammation. Different disease states, encompassing compensated and decompensated cirrhosis and a late decompensated state, are related to the progression of these mechanisms and may be recognised by haemodynamic or clinical characteristics. While these disease states do not follow a predictable sequence, they correspond to varying mortality risk. Acute-on-chronic liver failure may occur either in decompensated or in compensated cirrhosis and is always associated with a high short-term mortality. The increasing severity of these disease states prompted the concept of clinical states of cirrhosis. A multistate approach has been considered to describe the clinical course of the disease. Such an approach requires the assessment of the probabilities of different outcomes in each state, which compete with each other to occur first and mark the transition towards a different state. This requires the use of competing risks analysis, since the traditional Kaplan-Meier analysis should only be used in two-state settings. Accounting for competing risks also has implications for prognosis and treatment efficacy research. The aim of this review is to summarise relevant clinical states and to show examples of competing risks analysis in multistate models of cirrhosis.
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Affiliation(s)
- Gennaro D'Amico
- Gastroenterology Unit, Ospedale V. Cervello, Via Trabucco 180, Palermo, Italy.
| | | | - Mario D'Amico
- Radiology Department, Università di Palermo, Palermo, Italy
| | - Linda Pasta
- Gastroenterology Unit, Ospedale V. Cervello, Via Trabucco 180, Palermo, Italy
| | - Giuseppe Malizia
- Gastroenterology Unit, Ospedale V. Cervello, Via Trabucco 180, Palermo, Italy
| | - Paola Rebora
- Dipartimento di Medicina e Chirurgia Università di Milano-Bicocca, Milano, Italy
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