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Florea M, Serban T, Tirpe GR, Tirpe A, Lupsor-Platon M. Noninvasive Assessment of Hepatitis C Virus Infected Patients Using Vibration-Controlled Transient Elastography. J Clin Med 2021; 10:jcm10122575. [PMID: 34200885 PMCID: PMC8230562 DOI: 10.3390/jcm10122575] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/06/2021] [Accepted: 06/08/2021] [Indexed: 02/08/2023] Open
Abstract
Chronic infection with hepatitis C virus (HCV) is one of the leading causes of cirrhosis and hepatocellular carcinoma (HCC). Surveillance of these patients is an essential strategy in the prevention chain, including in the pre/post-antiviral treatment states. Ultrasound elastography techniques are emerging as key methods in the assessment of liver diseases, with a number of advantages such as their rapid, noninvasive, and cost-effective characters. The present paper critically reviews the performance of vibration-controlled transient elastography (VCTE) in the assessment of HCV patients. VCTE measures liver stiffness (LS) and the ultrasonic attenuation through the embedded controlled attenuation parameter (CAP), providing the clinician with a tool for assessing fibrosis, cirrhosis, and steatosis in a noninvasive manner. Moreover, standardized LS values enable proper staging of the underlying fibrosis, leading to an accurate identification of a subset of HCV patients that present a high risk for complications. In addition, VCTE is a valuable technique in evaluating liver fibrosis prior to HCV therapy. However, its applicability in monitoring fibrosis regression after HCV eradication is currently limited and further studies should focus on extending the boundaries of VCTE in this context. From a different perspective, VCTE may be effective in identifying clinically significant portal hypertension (CSPH). An emerging prospect of clinical significance that warrants further study is the identification of esophageal varices. Our opinion is that the advantages of VCTE currently outweigh those of other surveillance methods.
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Affiliation(s)
- Mira Florea
- Community Medicine Department, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - Teodora Serban
- Medical Imaging Department, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
| | - George Razvan Tirpe
- Department of Radiology and Medical Imaging, County Emergency Hospital Cluj-Napoca, 3-5 Clinicilor Street, 400000 Cluj-Napoca, Romania;
| | - Alexandru Tirpe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 400337 Cluj-Napoca, Romania;
| | - Monica Lupsor-Platon
- Medical Imaging Department, Iuliu Hatieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania;
- Medical Imaging Department, Regional Institute of Gastroenterology and Hepatology, 400162 Cluj-Napoca, Romania
- Correspondence:
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Tarantino G, Citro V, Balsano C, Capone D. Age and Interleukin-15 Levels Are Independently Associated With Intima-Media Thickness in Obesity-Related NAFLD Patients. Front Med (Lausanne) 2021; 8:634962. [PMID: 34095164 PMCID: PMC8175965 DOI: 10.3389/fmed.2021.634962] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Accepted: 04/06/2021] [Indexed: 01/06/2023] Open
Abstract
Common carotid intima-media thickness (IMT) represents a functional and structural marker of early, precocious, and subclinical atherosclerosis, independently from the carotid plaque. Macrophage cells, which have been detected in adipose tissue and atherosclerotic plaques, are regulated by interleukin-15 (IL-15). At the light of the conflicting results concerning the role of IL-15 in atherosclerosis, the aim of the study was to retrospectively evaluate in a population of 80 obese patients, with median age of 46 years (IQR 34–53 years), with a low rate of comorbidities but with non-alcoholic fatty liver disease (NAFLD) or hepatic steatosis (HS), the relationship between IMT and serum concentrations of IL-15. Anthropometric measures, metabolic profile, and serum inflammatory markers, as well as the levels of IL-15, MCP-1, b FGF, and GM-CSF, were analyzed by a bead-based assay. IMT, HS, subcutaneous, and visceral adipose tissues were detected by ultrasonography. The IL-15 levels of the obese patients were increased with respect to those of 44 young healthy subjects, i.e., 2.77 (1.21–4.8) vs. 1.55 (1–2.4) pg/mL (P = 0.002). In the univariate analysis, IL-15 levels were associated to IMT and to those of MCP-1, b FGF, and GM-CSF, without any relation to other inflammatory markers such as CRP and ferritin, except fibrinogen. In the multivariate analysis, after adjusting the HS severity for the extent of visceral adiposity, a dramatic change in prediction of IMT by HS was shown (β from 0.29 to 0.10, P from 0.008 to 0.37). When the visceral adipose tissue was combined with IL-15, on the one hand, and the well-known coronary artery disease (CAD) risk factors—i.e., age, gender, smoking status, HDL-cholesterol concentrations, triglycerides levels, and HOMA—on the other, only age and IL-15 remained the predictors of IMT (β = 0.60, P = 0.0001 and β = 0.25, P = 0.024, respectively). There was no association of IL-15 with various anthropometric parameters nor with body fat distribution and severity of HS, also after adjusting for age. Age is resulted to be the main factor in the prediction of IMT and thus of early atherosclerosis. The prediction of IMT by IL-15 coupled with the lack of prediction by the well-known CAD risks is in agreement with recent data, which emphasizes the main role of the immune system in the onset/worsening of atherosclerosis, even though the role of visceral adiposity should be further deepened. Age and IL-15 levels were both predictors of early atherosclerosis in this population of obese patients with NAFLD, suggesting a possible role of this cytokine in the atherosclerosis process.
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Affiliation(s)
- Giovanni Tarantino
- Department of Clinical Medicine and Surgery, Federico II University Medical School of Naples, Naples, Italy
| | - Vincenzo Citro
- Department of General Medicine, "Umberto I" Hospital, Nocera Inferiore, Italy
| | - Clara Balsano
- Department of Clinical Medicine, Life, Health and Environmental Sciences-MESVA, University of L'Aquila, L'Aquila, Italy
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Kozłowska-Petriczko K, Wunsch E, Petriczko J, Syn WK, Milkiewicz P. Diagnostic Accuracy of Non-Imaging and Ultrasound-Based Assessment of Hepatic Steatosis Using Controlled Attenuation Parameter (CAP) as Reference. J Clin Med 2021; 10:jcm10071507. [PMID: 33916626 PMCID: PMC8038574 DOI: 10.3390/jcm10071507] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 03/31/2021] [Accepted: 04/01/2021] [Indexed: 12/31/2022] Open
Abstract
Background & Aims: In view of the limited reliability of biopsies in the assessment of liver fat, a non-invasive, trustworthy, and more accessible method estimating a degree of steatosis is urgently needed. While the controlled attenuation parameter (CAP) is used to quantify hepatic fat, its availability in routine practice is limited. Therefore, the aim of this study was to compare the diagnostic accuracy of biomarker- and ultrasound-based techniques for the diagnosis and grading of hepatic steatosis. Methods: This was a prospective study of 167 adults with and without non-alcoholic fatty liver disease. As measured against CAP, we assessed Hamaguchi’s score and the hepatorenal index (HRI), and the following biochemical measures: the fatty liver index, hepatic steatosis index, and lipid accumulation product scores during a single out-patient visit. Area under the receiver operating curve (AUROC) analyses were used to evaluate the diagnostic accuracy of each test and to calculate optimal thresholds for the ultrasound techniques. Results: All non-invasive methods displayed high accuracy in detecting steatosis (mean AUC value ≥ 0.90), with Hamaguchi’s score and the HRI being the most precise. These two tests also had the highest sensitivity and specificity (82.2% and 100%; 86.9% and 94.8%, respectively). We propose new thresholds for Hamaguchi’s score and HRI for hepatic steatosis grading, indicated by optimal sensitivity and specificity. Conclusions: Ultrasound-based techniques are the most accurate for assessing liver steatosis compared to other non-invasive tests. Given the accessibility of ultrasonography, this finding is of practical importance for the assessment of liver steatosis in clinical settings.
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Affiliation(s)
- Katarzyna Kozłowska-Petriczko
- Translational Medicine Group, Pomeranian Medical University, 70-204 Szczecin, Poland; (K.K.-P.); (P.M.)
- Department of Gastroenterology and Internal Medicine, SPWSZ Hospital, 71-455 Szczecin, Poland
| | - Ewa Wunsch
- Translational Medicine Group, Pomeranian Medical University, 70-204 Szczecin, Poland; (K.K.-P.); (P.M.)
- Correspondence:
| | - Jan Petriczko
- Department of Plastic, Endocrine and General Surgery, Pomeranian Medical University, 70-204 Szczecin, Poland;
| | - Wing-Kin Syn
- Division of Gastroenterology and Hepatology, Medical University of South Carolina, Charleston, SC 29425, USA;
| | - Piotr Milkiewicz
- Translational Medicine Group, Pomeranian Medical University, 70-204 Szczecin, Poland; (K.K.-P.); (P.M.)
- Liver and Internal Medicine Unit, Medical University of Warsaw, 02-097 Warsaw, Poland
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Karlas T, Blank V, Böhlig A. Diagnostic Value of Ultrasound in Fatty Liver Disease. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2021; 42:128-153. [PMID: 33622003 DOI: 10.1055/a-1352-4313] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hepatic steatosis is a commonly seen phenomenon in clinical practice and is the result of the accumulation of lipids in the hepatocytes. In most cases steatosis refers to nonalcoholic fatty liver disease (NAFLD), but it also occurs in other diseases of the liver parenchyma of a different etiology and is the result of the dysregulation of metabolic processes. Consequently, inflammatory processes can induce progressive fibrosis. Due to the high prevalence of fatty liver disease, a further increase in metabolic liver cirrhosis with corresponding complications can be expected in the near future. Due to its broad availability, ultrasound is particularly important, especially for the management of NAFLD. In addition to diagnosis and risk stratification, the monitoring of high-risk patients in NAFLD is becoming increasingly clinically important. Multimodality ultrasound includes B-mode and duplex methods, analysis of tissue stiffness (elastography), contrast-enhanced imaging (CEUS), and steatosis quantification. When using ultrasound in fatty liver disease, a standardized approach that takes into account the limitations of the method is essential.
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Affiliation(s)
- Thomas Karlas
- Division of Gastroenterology, Department of Medicine II, Leipzig University Medical Center, Leipzig, Germany
| | - Valentin Blank
- Division of Gastroenterology, Department of Medicine II, Leipzig University Medical Center, Leipzig, Germany
| | - Albrecht Böhlig
- Division of Hepatology, Department of Medicine II, Leipzig University Medical Center, Leipzig, Germany
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Mikolasevic I, Stojsavljevic S, Blazic F, Mijic M, Radic-Kristo D, Juric T, Skenderevic N, Klapan M, Lukic A, Filipec Kanizaj T. Noninvasive markers of liver steatosis and fibrosis after liver transplantation - Where do we stand? World J Transplant 2021; 11:37-53. [PMID: 33816145 PMCID: PMC8009059 DOI: 10.5500/wjt.v11.i3.37] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 12/10/2020] [Accepted: 03/01/2021] [Indexed: 02/06/2023] Open
Abstract
In the last two decades, advances in immunosuppressive regimens have led to fewer complications of acute rejection crisis and consequently improved short-term graft and patient survival. In parallel with this great success, long-term post-transplantation complications have become a focus of interest of doctors engaged in transplant medicine. Metabolic syndrome (MetS) and its individual components, namely, obesity, dyslipidemia, diabetes, and hypertension, often develop in the post-transplant setting and are associated with immuno-suppressive therapy. Nonalcoholic fatty liver disease (NAFLD) is closely related to MetS and its individual components and is the liver manifestation of MetS. Therefore, it is not surprising that MetS and its individual components are associated with recurrent or "de novo" NAFLD after liver transplantation (LT). Fibrosis of the graft is one of the main determinants of overall morbidity and mortality in the post-LT period. In the assessment of post-LT steatosis and fibrosis, we have biochemical markers, imaging methods and liver biopsy. Because of the significant economic burden of post-LT steatosis and fibrosis and its potential consequences, there is an unmet need for noninvasive methods that are efficient and cost-effective. Biochemical scores can overestimate fibrosis and are not a good method for fibrosis evaluation in liver transplant recipients due to frequent post-LT thrombocytopenia. Transient elastography with controlled attenuation parameter is a promising noninvasive method for steatosis and fibrosis. In this review, we will specifically focus on the evaluation of steatosis and fibrosis in the post-LT setting in the context of de novo or recurrent NAFLD.
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Affiliation(s)
- Ivana Mikolasevic
- Department of Gastroenterology, Clinical Hospital Centre Rijeka, Rijeka, Croatia; Department of Gastroenterology, Clinical hospital Merkur, Zagreb, Croatia; Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Sanja Stojsavljevic
- Department of Gastroenterology, University Hospital Center “Sestre Milosrdnice”, Zagreb 10000, Croatia
| | - Filip Blazic
- Department of Gastroenterology, University Hospital Center Rijeka, Rijeka 51000, Croatia
| | - Maja Mijic
- Department of Gastroenterology, University Hospital Merkur, Zagreb 10000, Croatia
| | - Delfa Radic-Kristo
- Department of Hematology, University Hospital Merkur, Zagreb, Croatia; Faculty of Medicine, University of Zagreb, Zagreb, Croatia
| | - Toni Juric
- School of Medicine, School of Medicine, Rijeka 51000, Croatia
| | - Nadija Skenderevic
- Department of Gastroenterology, University Hospital Merkur, Zagreb 10000, Croatia
| | - Mia Klapan
- School of Medicine, School of Medicine, Rijeka 51000, Croatia
| | - Andjela Lukic
- School of Medicine, School of Medicine, Rijeka 51000, Croatia
| | - Tajana Filipec Kanizaj
- Department of Gastroenterology, University Hospital Merkur, Zagreb, Croatia; Faculty of Medicine, University of Zagreb, Zagreb, Croatia
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Trujillo MJ, Chen J, Rubin JM, Gao J. Non-invasive imaging biomarkers to assess nonalcoholic fatty liver disease: A review. Clin Imaging 2021; 78:22-34. [PMID: 33721575 DOI: 10.1016/j.clinimag.2021.02.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/25/2021] [Accepted: 02/28/2021] [Indexed: 02/07/2023]
Abstract
This review summarizes the current state of non-invasive diagnosis of non-alcoholic fatty liver disease (NAFLD). This begins with a brief discussion of blood-based analysis (serum biomarkers) then progresses through various imaging modalities (imaging biomarkers) including magnetic resonance (MR), computed tomography (CT), and ultrasound-based imaging methods. The review concludes with comment on the advantages, disadvantages, and prospects of commercially available modalities and the impact they may have on diagnosis and management of patients with NAFLD.
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Affiliation(s)
| | - Johnson Chen
- Weill Cornell Medicine, Cornell University, NY, New York, USA
| | | | - Jing Gao
- Rocky Vista University, Ivins, UT, USA; Weill Cornell Medicine, Cornell University, NY, New York, USA.
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Cha DI, Kang TW, Min JH, Joo I, Sinn DH, Ha SY, Kim K, Lee G, Yi J. Deep learning-based automated quantification of the hepatorenal index for evaluation of fatty liver by ultrasonography. Ultrasonography 2021; 40:565-574. [PMID: 33966363 PMCID: PMC8446496 DOI: 10.14366/usg.20179] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 02/24/2021] [Indexed: 12/19/2022] Open
Abstract
PURPOSE The aim of this study was to develop and validate a fully-automatic quantification of the hepatorenal index (HRI) calculated by a deep convolutional neural network (DCNN) comparable to the interpretations of radiologists experienced in ultrasound (US) imaging. METHODS In this retrospective analysis, DCNN-based organ segmentation with Gaussian mixture modeling for automated quantification of the HRI was developed using abdominal US images from a previous study. For validation, 294 patients who underwent abdominal US examination before living-donor liver transplantation were selected. Interobserver agreement for the measured brightness of the liver and kidney and the calculated HRI were analyzed between two board-certified radiologists and DCNN using intraclass correlation coefficients (ICCs). RESULTS Most patients had normal (n=95) or mild (n=198) fatty liver. The ICCs of hepatic and renal brightness measurements and the calculated HRI between the two radiologists were 0.892 (95% confidence interval [CI], 0.866 to 0.913), 0.898 (95% CI, 0.873 to 0.918), and 0.681 (95% CI, 0.615 to 0.738) for the first session and 0.920 (95% CI, 0.901 to 0.936), 0.874 (95% CI, 0.844 to 0.898), and 0.579 (95% CI, 0.497 to 0.650) for the second session, respectively; the results ranged from moderate to excellent agreement. Using the same task, the ICCs of the hepatic and renal measurements and the calculated HRI between the average values of the two radiologists and DCNN were 0.919 (95% CI, 0.899 to 0.935), 0.916 (95% CI, 0.895 to 0.932), and 0.734 (95% CI, 0.676 to 0.782), respectively, showing high to excellent agreement. CONCLUSION Automated quantification of HRI using DCNN can yield HRI measurements similar to those obtained by experienced radiologists in patients with normal or mild fatty liver.
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Affiliation(s)
- Dong Ik Cha
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Tae Wook Kang
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Hye Min
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ijin Joo
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Hyun Sinn
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sang Yun Ha
- Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyunga Kim
- Biomedical Statistics Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
| | - Gunwoo Lee
- Medical Imaging R&D Group, Health & Medical Equipment Business, Samsung Electronics Co., Ltd., Seoul, Korea
| | - Jonghyon Yi
- Medical Imaging R&D Group, Health & Medical Equipment Business, Samsung Electronics Co., Ltd., Seoul, Korea
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Das A, Connell M, Khetarpal S. Digital image analysis of ultrasound images using machine learning to diagnose pediatric nonalcoholic fatty liver disease. Clin Imaging 2021; 77:62-68. [PMID: 33647632 DOI: 10.1016/j.clinimag.2021.02.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 01/09/2021] [Accepted: 02/21/2021] [Indexed: 12/18/2022]
Abstract
PURPOSE Prevalence of nonalcoholic fatty liver disease (NAFLD) in children is rising with the epidemic of childhood obesity. Our objective was to perform digital image analysis (DIA) of ultrasound (US) images of the liver to develop a machine learning (ML) based classification model capable of differentiating NAFLD from healthy liver tissue and compare its performance with pixel intensity-based indices. METHODS De-identified hepatic US images obtained as part of a cross-sectional study examining pediatric NAFLD prevalence were used to build an image database. Texture features were extracted from a representative region of interest (ROI) selected from US images of subjects with normal liver and subjects with confirmed NAFLD using ImageJ and MAZDA image analysis software. Multiple ML classification algorithms were evaluated. RESULTS Four-hundred eighty-four ROIs from images in 93 normal subjects and 260 ROIs from images in 39 subjects with NAFLD with 28 texture features extracted from each ROI were used to develop, train, and internally validate the model. An ensembled ML model comprising Support Vector Machine, Neural Net, and Extreme Gradient Boost algorithms was accurate in differentiating NAFLD from normal when tested in an external validation cohort of 211 ROIs from images in 42 children. The texture-based ML model was also superior in predictive accuracy to ML models developed using the intensity-based indices (hepatic-renal index and the hepatic echo-intensity attenuation index). CONCLUSION ML-based predictive models can accurately classify NAFLD US images from normal liver images with high accuracy using texture analysis features.
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Affiliation(s)
- Amit Das
- Adjunct Research Associate, Valleywise Health Medical Center, Phoenix, AZ, United States of America.
| | - Mary Connell
- Department of Radiology, Valleywise Health Medical Center, Phoenix, AZ, United States of America
| | - Shailesh Khetarpal
- Department of Pediatrics, Valleywise Health Medical Center, Phoenix, AZ, United States of America
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Lupsor-Platon M, Serban T, Silion AI, Tirpe GR, Tirpe A, Florea M. Performance of Ultrasound Techniques and the Potential of Artificial Intelligence in the Evaluation of Hepatocellular Carcinoma and Non-Alcoholic Fatty Liver Disease. Cancers (Basel) 2021; 13:790. [PMID: 33672827 PMCID: PMC7918928 DOI: 10.3390/cancers13040790] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/14/2020] [Accepted: 02/09/2021] [Indexed: 12/12/2022] Open
Abstract
Global statistics show an increasing percentage of patients that develop non-alcoholic fatty liver disease (NAFLD) and NAFLD-related hepatocellular carcinoma (HCC), even in the absence of cirrhosis. In the present review, we analyzed the diagnostic performance of ultrasonography (US) in the non-invasive evaluation of NAFLD and NAFLD-related HCC, as well as possibilities of optimizing US diagnosis with the help of artificial intelligence (AI) assistance. To date, US is the first-line examination recommended in the screening of patients with clinical suspicion of NAFLD, as it is readily available and leads to a better disease-specific surveillance. However, the conventional US presents limitations that significantly hamper its applicability in quantifying NAFLD and accurately characterizing a given focal liver lesion (FLL). Ultrasound contrast agents (UCAs) are an essential add-on to the conventional B-mode US and to the Doppler US that further empower this method, allowing the evaluation of the enhancement properties and the vascular architecture of FLLs, in comparison to the background parenchyma. The current paper also explores the new universe of AI and the various implications of deep learning algorithms in the evaluation of NAFLD and NAFLD-related HCC through US methods, concluding that it could potentially be a game changer for patient care.
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Affiliation(s)
- Monica Lupsor-Platon
- Medical Imaging Department, Regional Institute of Gastroenterology and Hepatology, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj-Napoca, Romania
| | - Teodora Serban
- Medical Imaging Department, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj-Napoca, Romania; (T.S.); (A.I.S.)
| | - Alexandra Iulia Silion
- Medical Imaging Department, Iuliu Hatieganu University of Medicine and Pharmacy, 400162 Cluj-Napoca, Romania; (T.S.); (A.I.S.)
| | - George Razvan Tirpe
- County Emergency Hospital Cluj-Napoca, 3-5 Clinicilor Street, 400000 Cluj-Napoca, Romania;
| | - Alexandru Tirpe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 23 Marinescu Street, 400337 Cluj-Napoca, Romania;
| | - Mira Florea
- Community Medicine Department, Iuliu Hatieganu University of Medicine and Pharmacy, 400001 Cluj-Napoca, Romania;
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Stahlschmidt FL, Tafarel JR, Menini-Stahlschmidt CM, Baena CP. Hepatorenal index for grading liver steatosis with concomitant fibrosis. PLoS One 2021; 16:e0246837. [PMID: 33577616 PMCID: PMC7880490 DOI: 10.1371/journal.pone.0246837] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 01/26/2021] [Indexed: 12/12/2022] Open
Abstract
Introduction Ultrasonography is widely used as the first tool to evaluate fatty liver disease, and the hepatorenal index is a semi-quantitative method that improves its performance. Fibrosis can co-exist with steatosis or even replace it during disease progression. This study aimed to evaluate the influence of fibrosis on the measurement of steatosis using the hepatorenal index. Materials and methods This cross-sectional study included 89 patients with nonalcoholic fatty liver disease and in whom liver fibrosis was determined by ultrasound elastography. The Pearson’s correlation coefficient was used to compare between the results of the sonographic hepatorenal index and the quantification of steatosis using magnetic resonance spectroscopy as well the accuracy of detecting moderate to severe steatosis using sonography in two groups of patients: (A) without advanced fibrosis and (B) with advanced fibrosis. Advanced fibrosis was defined as a shear wave speed ≥ 1.78 m/s on ultrasound elastography. We calculated the area under the curve (AUC-ROC) to detect the ability of the hepatorenal index to differentiate light from moderate to severe steatosis in both groups. Moderate to severe steatosis was defined as a fat fraction > 15% on the magnetic resonance spectroscopy. The intra-observer variability was assessed using the Bland-Altman plot. Results Among patients, the mean age was 54.6 years and 59.6% were women, 50.6% had a body mass index ≥ 30 kg/m2, 29.2% had moderate to severe steatosis, and 27.2% had advanced fibrosis. There was a correlation between steatosis grading by ultrasonography and magnetic resonance in group A (0.73; P < 0.001), but not in Group B (0.33; P = 0.058). The AUC-ROC for detecting a steatosis fraction ≥ 15% was 0.90 and 0.74 in group A and group B, respectively. The intra-observer variability for the hepatorenal index measurements was not significant (-0.036; P = 0.242). Conclusion The hepatorenal index is not appropriate for estimating steatosis in livers with advanced fibrosis.
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Affiliation(s)
- Fabio Lucio Stahlschmidt
- School of Medicine Pontifical Catholic University of Paraná, Curitiba, Paraná PR, Brazil
- Marcelino Champagnat Hospital, Curitiba, Paraná PR, Brazil
- * E-mail:
| | - Jean Rodrigo Tafarel
- School of Medicine Pontifical Catholic University of Paraná, Curitiba, Paraná PR, Brazil
- Marcelino Champagnat Hospital, Curitiba, Paraná PR, Brazil
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Abstract
BACKGROUND. Nonalcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in children in certain regions and is rising in prevalence with increasing obesity. Accurate noninvasive imaging methods for diagnosing and quantifying liver fat are needed to guide NAFLD management. OBJECTIVE. The purpose of this article is to evaluate four ultrasound technologies for quantitative assessment of liver fat content in children using MRI proton density fat fraction (PDFF) as a reference standard. METHODS. This prospective study enrolled children who underwent clinical abdominal MRI without general anesthesia between November 2018 and July 2019. Patients underwent investigational liver ultrasound within a day of 1.5-T or 3-T MRI. Acquired ultrasound radiofrequency data were processed offline to compute the acoustic attenuation coefficient, hepatorenal index (HRI), Nakagami parameter, and shear-wave elastography (SWE) parameters (elasticity, viscosity, and dispersion). Ultrasound parameters were compared with MRI PDFF obtained using a multiecho sequence. A second observer independently performed offline attenuation coefficient and HRI measurements in all patients. RESULTS. A total of 48 patients were enrolled: 22 girls, 26 boys; mean age of 13 years (range, 7-17 years); mean body mass index (weight in kilograms divided by the square of height in meters) of 22.25 (range, 14.5-48.1). A total of 21% (10/48) had steatosis (PDFF ≥ 5%). PDFF was correlated with attenuation coefficient (r = 0.76; 95% CI, 0.60-0.86; p < .001), HRI (r = 0.84; 95% CI, 0.74-0.91; p < .001), and Nakagami parameter (r = 0.55, 95% CI, 0.32-0.72, p < .001), but not SWE parameters (r = 0.05-0.25; p > .05). In patients with no, mild, moderate, and severe steatosis according to PDFF, the mean (± SD) attenuation coefficient was 0.48 ± 0.08, 0.54 ± 0.03, 0.57 ± 0.04, and 0.86 ± 0.07 dB/cm/MHz, respectively, and the mean HRI was 1.28 ± 0.30, 1.59 ± 0.23, 2.25 ± 0.04, and 3.06 ± 0.49, respectively. For the attenuation coefficient, the threshold of 0.54 dB/cm/MHz achieved a sensitivity of 80% and a specificity of 82% for steatosis, and 0.60 dB/cm/MHz achieved a sensitivity of 80% and a specificity of 98% for moderate steatosis. For HRI, the threshold of 1.48 achieved sensitivity of 90% and specificity of 76% for steatosis, and 2.11 achieved sensitivity of 100% and specificity of 100% for moderate steatosis. The interobserver concordance coefficient was 0.92 for attenuation coefficient and 0.91 for HRI. CONCLUSION. Attenuation coefficient and HRI accurately detected and quantified liver fat in this small sample of children. CLINICAL IMPACT. Quantitative ultrasound parameters may guide NAFLD diagnosis and management in children.
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Tanpowpong N, Panichyawat S. Comparison of sonographic hepatorenal ratio and the degree of hepatic steatosis in magnetic resonance imaging-proton density fat fraction. J Ultrason 2020; 20:e169-e175. [PMID: 33365152 PMCID: PMC7705486 DOI: 10.15557/jou.2020.0028] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/13/2020] [Indexed: 12/21/2022] Open
Abstract
Objectives: Conventional ultrasonography can provide only semi-quantitative assessment of hepatic steatosis. The aim of this study was to assess sonographic hepatorenal ratio to quantify the severity of fatty liver. Methods: We performed a retrospective analysis of 179 patients with various liver diseases who underwent abdominal magnetic resonance imaging and ultrasonography on the same day. The hepatorenal ratio was calculated by the ratio between the mean echo intensity in regions of interests of the liver and regions of interests of the right renal cortex. Magnetic resonance imaging-proton density fat fraction was used as standard reference for steatosis grading. The effect of fibrosis measured by magnetic resonance elastography on the degree of correlation was also assessed. Results: The hepatorenal ratio was highly correlated with magnetic resonance imaging-proton density fat fraction (Spearman’s coefficient = 0.83) (p <0.001). High correlation of hepatorenal ratio with magnetic resonance imaging-proton density fat fraction was observed in patients with less than stage 2 fibrosis (p <0.001), whereas moderate correlation of hepatorenal ratio with magnetic resonance imaging-proton density fat fraction was found in patients with ≥ stage 2 fibrosis or higher (p <0.001). The hepatorenal ratio cutoff point for prediction of grade 1 hepatic steatosis was 1.18 with sensitivity of 90.0% and specificity of 80.0%. The hepatorenal ratio cutoff point for prediction of grade 2 and grade 3 hepatic steatosis was 1.55 and 1.60, respectively, with sensitivity greater than 90% and specificity greater than 80%. Conclusions: The hepatorenal ratio could become an effective quantitative tool for hepatic steatosis alternative to magnetic resonance imaging-proton density fat fraction. Application should be careful in the group of patients with stage 2 liver fibrosis or higher.
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Affiliation(s)
- Natthaporn Tanpowpong
- Diagnostic Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sineenart Panichyawat
- Diagnostic Radiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
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The Role of Elastography in Non-Alcoholic Fatty Liver Disease. CURRENT HEALTH SCIENCES JOURNAL 2020; 46:255-269. [PMID: 33304627 PMCID: PMC7716767 DOI: 10.12865/chsj.46.03.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 08/10/2020] [Indexed: 11/18/2022]
Abstract
The most common liver disease in developing countries is non-alcoholic fatty liver disease (NAFLD). This involves the abnormal accumulation of lipids in the liver, the pathogenesis of the disease being related to dyslipidemia, obesity, insulin resistance and type 2 diabetes. Most often, the diagnosis of NAFLD is incidental, when performing routine blood tests or when performing a transabdominal ultrasound. The NAFLD spectrum ranges from simple forms of hepatic steatosis to the most advanced form of the disease, steatohepatitis (NASH), which in evolution can cause inflammation, fibrosis, cirrhosis of the liver and even liver cancer. For the evaluation of the prognosis and the clinical evolution, the most important parameter to define is the degree of liver fibrosis. Currently, the gold standard remains the liver biopsy, the differentiation between NAFLD and NASH being made only on the basis of histological analysis. However, liver biopsy is an invasive procedure, with numerous risks such as bleeding, lesions of the other organs and complications related to anesthesia, which significantly reduces its widespread use. Moreover, the risk of a false negative result and the increased costs of the procedure further limits its use in current practice. For this reason, non-invasive methods of evaluating the degree of liver fibrosis have gained ground in recent years. Imaging techniques such as elastography have shown promising results in evaluating and staging NAFLD. The aim of this article is to review the current status of the non-invasive tests for the assessment of NAFLD with a focus on the ultrasound-based elastography techniques.
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Labyed Y, Milkowski A. Novel Method for Ultrasound-Derived Fat Fraction Using an Integrated Phantom. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2020; 39:2427-2438. [PMID: 32525261 DOI: 10.1002/jum.15364] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/11/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES The purpose of this study was to demonstrate the clinical feasibility of an integrated reference phantom method for quantitative ultrasound by creating an ultrasound-derived fat fraction (UDFF) tool. This tool was evaluated with respect to its diagnostic performance as a biomarker for assessing histologic hepatic steatosis and its agreement with the magnetic resonance imaging (MRI) proton density fat fraction (PDFF). METHODS Adults (n = 101) with known or suspected nonalcoholic fatty liver disease consented to participate in this prospective cross-sectional study. All patients underwent MRI-PDFF and ultrasound scans, whereas 90 underwent liver biopsy. A linear least-squares analysis used the attenuation coefficient and backscatter coefficient to create the UDFF model for predicting MRI-PDFF. RESULTS The area under the receiver operating characteristic curve values were 0.94 (95% confidence interval [CI], 0.85-0.98) for histologic steatosis grade 0 (n = 6) versus 1 or higher (n = 84), 0.88 (95% CI, 0.8-0.94) for grade 1 or lower (n = 45) versus 2 or higher (n = 45), and 0.83 (95% CI, 0.73-0.9) for grade 2 or lower (n = 78) versus 3 (n = 12). The Pearson correlation coefficient between UDFF and PDFF was ρ = 0.87 with 95% limits of agreement of ±8.5%. Additionally, the diagnosis of steatosis, defined as MRI-PDFF higher than 5% and 10%, had area under the receiver operating characteristic curve values of 0.97 (95% CI, 0.93-0.99) and 0.95 (95% CI, 0.9-0.98), respectively. The body mass index was not correlated with either UDFF or PDFF. CONCLUSIONS An on-system, integrated UDFF tool provides a simple, noninvasive, accessible, low-cost, and commercially viable clinical tool for quantifying the hepatic fat fraction with a high degree of agreement with histologic biopsy or the MRI-PDFF biomarker.
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Affiliation(s)
- Yassin Labyed
- Ultrasound Division, Siemens Healthineers, Issaquah, Washington, USA
| | - Andy Milkowski
- Ultrasound Division, Siemens Healthineers, Issaquah, Washington, USA
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Fructose-Induced Intestinal Microbiota Shift Following Two Types of Short-Term High-Fructose Dietary Phases. Nutrients 2020; 12:nu12113444. [PMID: 33182700 PMCID: PMC7697676 DOI: 10.3390/nu12113444] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/02/2020] [Accepted: 11/05/2020] [Indexed: 12/13/2022] Open
Abstract
High consumption of fructose and high-fructose corn syrup is related to the development of obesity-associated metabolic diseases, which have become the most relevant diet-induced diseases. However, the influences of a high-fructose diet on gut microbiota are still largely unknown. We therefore examined the effect of short-term high-fructose consumption on the human intestinal microbiota. Twelve healthy adult women were enrolled in a pilot intervention study. All study participants consecutively followed four different diets, first a low fructose diet (< 10 g/day fructose), then a fruit-rich diet (100 g/day fructose) followed by a low fructose diet (10 g/day fructose) and at last a high-fructose syrup (HFS) supplemented diet (100 g/day fructose). Fecal microbiota was analyzed by 16S rRNA sequencing. A high-fructose fruit diet significantly shifted the human gut microbiota by increasing the abundance of the phylum Firmicutes, in which beneficial butyrate producing bacteria such as Faecalibacterium, Anareostipes and Erysipelatoclostridium were elevated, and decreasing the abundance of the phylum Bacteroidetes including the genus Parabacteroides. An HFS diet induced substantial differences in microbiota composition compared to the fruit-rich diet leading to a lower Firmicutes and a higher Bacteroidetes abundance as well as reduced abundance of the genus Ruminococcus. Compared to a low-fructose diet we observed a decrease of Faecalibacterium and Erysipelatoclostridium after the HFS diet. Abundance of Bacteroidetes positively correlated with plasma cholesterol and LDL level, whereas abundance of Firmicutes was negatively correlated. Different formulations of high-fructose diets induce distinct alterations in gut microbiota composition. High-fructose intake by HFS causes a reduction of beneficial butyrate producing bacteria and a gut microbiota profile that may affect unfavorably host lipid metabolism whereas high consumption of fructose from fruit seems to modulate the composition of the gut microbiota in a beneficial way supporting digestive health and counteracting harmful effects of excessive fructose.
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Soleimani D, Rezaie M, Rajabzadeh F, Gholizadeh Navashenaq J, Abbaspour M, Miryan M, Razmpour F, Ranjbar G, Rezvani R, Jarahi L, Hashemy SI, Goshayeshi L, Nematy M. Protective effects of propolis on hepatic steatosis and fibrosis among patients with nonalcoholic fatty liver disease (NAFLD) evaluated by real-time two-dimensional shear wave elastography: A randomized clinical trial. Phytother Res 2020; 35:1669-1679. [PMID: 33166032 DOI: 10.1002/ptr.6937] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/22/2020] [Accepted: 10/18/2020] [Indexed: 12/17/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease, while no drugs have been approved for its treatment. The pieces of evidence indicate that propolis as a novel anti-inflammatory agent might be a promising candidate to treat NAFLD. We aimed to evaluate the efficacy of propolis on hepatic steatosis and fibrosis in patients with NAFLD. This randomized clinical trial was conducted on 54 patients with NAFLD. Patients were randomly assigned to receive propolis tablets at a dose of 250 mg twice daily for 4 months or placebo. The improvement in hepatic steatosis and fibrosis was evaluated using two-dimensional shear wave elastography. Improvement in the hepatic steatosis was significantly higher in the propolis group than the placebo group, even after adjustment for baseline value and changes in weight, energy intake, and physical activity (odds ratio [OR]: 5.67; 95% confidence intervals [CI]: 1.41-22.8; p = .014). A significant reduction was observed on the liver stiffness in the propolis group (-0.65 ± 0.56 kPa; p = .001), whereas it increased in the placebo group (0.27 ± 0.59 kPa; p = .037). Also, the intake of propolis significantly decreased high-sensitivity C-reactive protein (hs-CRP) levels compared with the placebo group (-0.371; 95%CI: -0.582 to -0.16 mg/L; p = .01). Changes in serum levels of fasting blood sugar, alanine aminotransferase, aspartate aminotransferase, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, cholesterol, and triglyceride did not differ significantly between the two groups (p > .05). There was no significant improvement in insulin resistance in both groups (p > .05). Propolis seems to have protective effects on hepatic steatosis and fibrosis and to reduce the serum levels of hs-CRP in patients with NAFLD.
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Affiliation(s)
- Davood Soleimani
- Department of Nutritional Sciences, School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran.,Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mitra Rezaie
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farnood Rajabzadeh
- Department of Radiology, Mashhad Medical Sciences Branch, Islamic Azad University, Mashhad, Iran
| | | | - Mohammadreza Abbaspour
- Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahsa Miryan
- Nutrition Research Center, Department of Clinical Nutrition, School of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Golnaz Ranjbar
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Reza Rezvani
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Lida Jarahi
- Department of Community Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Isaac Hashemy
- Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ladan Goshayeshi
- Department of Gastroenterology and Hepatology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Nematy
- Department of Nutrition, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Serum Soluble Receptor for AGE (sRAGE) Levels Are Associated With Unhealthy Lifestyle and Nonalcoholic Fatty Liver Disease. Clin Transl Gastroenterol 2020; 10:1-10. [PMID: 31082855 PMCID: PMC6602762 DOI: 10.14309/ctg.0000000000000040] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) has been demonstrated to be positively associated with serum advanced glycation end products (AGEs) and negatively with soluble receptor for AGE (sRAGE) in a few small studies. We aimed to test the association between lifestyle and sRAGE levels and the association between sRAGE levels or AGEs intake and NAFLD, insulin resistance (IR), and elevated alanine aminotransferase (ALT).
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Joutovsky B, Ortiz A, Bentley C, Gao J. Portable Ultrasonography to Assess Adult Hepatosteatosis in Rural Ecuador. J Osteopath Med 2020; 120:2765217. [PMID: 32776127 DOI: 10.7556/jaoa.2020.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
CONTEXT Hepatosteatosis (HS) is prevalent worldwide and can be measured via ultrasonographic (US) hepatic-renal (H/R) echo-intensity ratio. OBJECTIVE To examine the incidence of HS in rural communities of the Ecuadorian Chimborazo region and to validate portable US as an effective method of disease screening in rural settings. METHODS Sagittal right liver/kidney B-mode US was performed in individuals from 4 villages using a portable US scanner equipped with a 3.5-MHz curvilinear probe. National Institutes of Health ImageJ software was used to computerize tissue echogenicity in both renal cortex and hepatic parenchyma offline. Regions of interest of 900 pixels were used for measuring pixel intensity of the right renal cortex and hepatic parenchyma when calculating the H/R ratio. The difference in pixel intensity between liver parenchyma and renal cortex was analyzed using an unpaired t test. The intraclass correlation coefficient was used to test intra- and interobserver reliability for computerizing the H/R ratio. RESULTS Forty patients were enrolled in the study (32 women and 8 men; mean age, 40 years). The mean (SD) H/R ratio of study patients was 3.61 (2.32), moderately higher than normal (normal, H/R <1.5). A significant difference was found in mean (SD) pixel value between hepatic parenchyma and renal cortex (52.82 [15.34] vs 19.93 [10.39]; P<.001). Thirty-four patients (85%) had an H/R ratio greater than 1.5. The intra- and interobserver reliability of computerizing H/R ratio was excellent (r=0.940; P<.01). CONCLUSION These findings suggest that HS is moderately present in persons in remote communities of Ecuador. The mean H/R ratio was greater than that in the diagnostic criteria for the disease. Portable US imaging may benefit these communities as an efficient method for the HS screening and diagnosis in rural areas.
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Kim KB, Kim GH, Song DH, Park HJ, Kim CW. Automatic segmentation of liver/kidney area with double-layered fuzzy C-means and the utility of hepatorenal index for fatty liver severity classification. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2020. [DOI: 10.3233/jifs-191850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Kwang Baek Kim
- Division of Computer Software Engineering, Silla University, Busan, Korea
| | - Gwang Ha Kim
- Department of Internal Medicine, School of Medicine and Biomedical Research Institute, Pusan National University, Pusan National University Hospital, Busan, Korea
| | - Doo Heon Song
- Department of Computer Games, Yong-in SongDam College, Yongin, Korea
| | - Hyun Jun Park
- Division of Software Convergence, Cheongju University, Cheongju, Korea
| | - Chang Won Kim
- Department of Radiology, School of Medicine and Biomedical Research Institute, Pusan National University, Pusan National University Hospital, Busan, Korea
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Jesper D, Klett D, Schellhaas B, Pfeifer L, Leppkes M, Waldner M, Neurath MF, Strobel D. Ultrasound-Based Attenuation Imaging for the Non-Invasive Quantification of Liver Fat - A Pilot Study on Feasibility and Inter-Observer Variability. IEEE JOURNAL OF TRANSLATIONAL ENGINEERING IN HEALTH AND MEDICINE 2020; 8:1800409. [PMID: 32617199 PMCID: PMC7326151 DOI: 10.1109/jtehm.2020.3001488] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/22/2020] [Accepted: 05/27/2020] [Indexed: 12/19/2022]
Abstract
Attenuation imaging is a novel, ultrasound-based technique to objectively detect and quantify liver steatosis. In this study, we evaluated the performance and inter-observer variability of attenuation imaging and compared it to a known quantification method of liver fat, the hepatorenal index (HRI). Two observers measured attenuation coefficients (AC) in an attenuation phantom, 20 healthy volunteers and 27 patients scheduled for biopsy for suspected diffuse liver disease. Results were compared with the HRI and histological findings. Both observers were blinded to the results of the biopsy and the measurements of the other observer. Our results showed that patients with moderate (S2, 33-66%) and severe fatty infiltration of the liver (S3, >66%) showed significantly higher ACs in comparison to patients with a liver fat fraction of less than 33% (S0/1). There was no significant difference in AC-values of patients with fatty infiltration of less than 5% (S0) and 5-32% (S1). In the Receiver Operating Characteristic (ROC)-analysis, the area under the curve (AUC)-values for the detection of moderate and severe steatosis were excellent at 0.98. Cut-off values were 0.64 dB/cm/MHz for the detection of S2- and 0.68 dB/cm/MHz for the detection of S3-steatosis. The inter-observer agreement of attenuation imaging was very good with an intraclass correlation coefficient (ICC) of 0.92 in patient and 0.96 in phantom measurements. The ICC decreased with depth in the phantom measurements. In summary, attenuation imaging showed very good inter-observer agreement and is a promising tool for the detection and quantification of moderate and severe hepatic steatosis.
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Affiliation(s)
- Daniel Jesper
- Department of Internal Medicine 1Erlangen University Hospital, FAU University of Erlangen-Nürnberg91054ErlangenGermany
| | - Daniel Klett
- Department of Internal Medicine 1Erlangen University Hospital, FAU University of Erlangen-Nürnberg91054ErlangenGermany
| | - Barbara Schellhaas
- Department of Internal Medicine 1Erlangen University Hospital, FAU University of Erlangen-Nürnberg91054ErlangenGermany
| | - Lukas Pfeifer
- Department of Internal Medicine 1Erlangen University Hospital, FAU University of Erlangen-Nürnberg91054ErlangenGermany
| | - Moritz Leppkes
- Department of Internal Medicine 1Erlangen University Hospital, FAU University of Erlangen-Nürnberg91054ErlangenGermany
| | - Maximilian Waldner
- Department of Internal Medicine 1Erlangen University Hospital, FAU University of Erlangen-Nürnberg91054ErlangenGermany
| | - Markus F. Neurath
- Department of Internal Medicine 1Erlangen University Hospital, FAU University of Erlangen-Nürnberg91054ErlangenGermany
| | - Deike Strobel
- Department of Internal Medicine 1Erlangen University Hospital, FAU University of Erlangen-Nürnberg91054ErlangenGermany
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Byra M, Hentzen E, Du J, Andre M, Chang EY, Shah S. Assessing the Performance of Morphologic and Echogenic Features in Median Nerve Ultrasound for Carpal Tunnel Syndrome Diagnosis. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2020; 39:1165-1174. [PMID: 31868248 DOI: 10.1002/jum.15201] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/30/2019] [Accepted: 11/19/2019] [Indexed: 06/10/2023]
Abstract
OBJECTIVES To assess the feasibility of using ultrasound (US) image features related to the median nerve echogenicity and shape for carpal tunnel syndrome (CTS) diagnosis. METHODS In 31 participants (21 healthy participants and 10 patients with CTS), US images were collected with a 30-MHz transducer from median nerves at the wrist crease in 2 configurations: a neutral position and with wrist extension. Various morphologic features, including the cross-sectional area (CSA), were calculated to assess the nerve shape. Carpal tunnel syndrome commonly results in loss of visualization of the nerve fascicular pattern on US images. To assess this phenomenon, we developed a nerve-tissue contrast index (NTI) method. The NTI is a ratio of average brightness levels of surrounding tissue and the median nerve, both calculated on the basis of a US image. The area under the curve (AUC) from a receiver operating characteristic curve analysis and t test were used to assess the usefulness of the features for differentiation of patients with CTS from control participants. RESULTS We obtained significant differences in the CSA and NTI parameters between the patients with CTS and control participants (P < .01), with the corresponding highest AUC values equal to 0.885 and 0.938, respectively. For the remaining investigated morphologic features, the AUC values were less than 0.685, and the differences in means between the patients and control participants were not statistically significant (P > .10). The wrist configuration had no impact on differences in average parameter values (P > .09). CONCLUSIONS Patients with CTS can be differentiated from healthy individuals on the basis of the median nerve CSA and echogenicity. Carpal tunnel syndrome is not manifested in a change of the median nerve shape that could be related to circularity or contour variability.
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Affiliation(s)
- Michal Byra
- Research Service, VA San Diego Healthcare System, San Diego, California, USA
- Department of Ultrasound, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Eric Hentzen
- Research Service, VA San Diego Healthcare System, San Diego, California, USA
- Department of Orthopedic Surgery, University of California, San Diego, California, USA
| | - Jiang Du
- Research Service, VA San Diego Healthcare System, San Diego, California, USA
| | - Michael Andre
- Research Service, VA San Diego Healthcare System, San Diego, California, USA
| | - Eric Y Chang
- Research Service, VA San Diego Healthcare System, San Diego, California, USA
| | - Sameer Shah
- Research Service, VA San Diego Healthcare System, San Diego, California, USA
- Department of Orthopedic Surgery, University of California, San Diego, California, USA
- Department of Bioengineering, University of California, San Diego, California, USA
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Jeon SK, Joo I, Kim SY, Jang JK, Park J, Park HS, Lee ES, Lee JM. Quantitative ultrasound radiofrequency data analysis for the assessment of hepatic steatosis using the controlled attenuation parameter as a reference standard. Ultrasonography 2020; 40:136-146. [PMID: 32654442 PMCID: PMC7758108 DOI: 10.14366/usg.20042] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 05/09/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose This study was aimed to investigate the value of quantitative ultrasound (US) parameters from radiofrequency (RF) data analysis for assessing hepatic steatosis, using controlled attenuation parameter (CAP)-based steatosis grades as the reference standard. Methods We analyzed 243 participants with both B-mode liver US with RF data acquisition and CAP measurements. On B-mode US images, hepatic steatosis was visually scored (0/1/2/3, none/mild/moderate/severe), and the hepatorenal index (HRI) was calculated. From the RF data analysis, the tissue scatter-distribution imaging parameter (TSI-p) and tissue attenuation imaging parameter (TAI-p) of the liver parenchyma were measured. US parameters were correlated with CAP-based steatosis grades (S0/1/2/3, none/mild/moderate/severe) and their diagnostic performance was evaluated using receiver operating characteristic (ROC) curve analysis. Multivariate linear regression analysis was performed to identify determinants of TSI-p and TAI-p. Results Participants were classified as having S0 (n=152), S1 (n=54), S2 (n=14), and S3 (n=23) on CAP measurements. TSI-p and TAI-p were significantly correlated with steatosis grades (ρ =0.593 and ρ=-0.617, P<0.001 for both). For predicting ≥S1, ≥S2, and S3, the areas under the ROC curves (AUCs) of TSI-p were 0.827/0.914/0.917; TAI-p, 0.844/0.914/0.909; visual scores, 0.659/0.778/0.794; and HRI, 0.629/0.751/0.759, respectively. TSI-p and TAI-p had significantly higher AUCs than did visual scores or HRI for ≥S1 or ≥S2 (P≤0.003). In the multivariate analysis, the transient elastography-based fibrosis grade (P=0.034) and steatosis grade (P<0.001) were independent determinants of TSI-p, while steatosis grade (P<0.001) was an independent determinant of TAI-p. Conclusion TSI-p and TAI-p derived from US RF data may be useful for detecting hepatic steatosis and assessing its severity.
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Affiliation(s)
- Sun Kyung Jeon
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Ijin Joo
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - So Yeon Kim
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jong Keon Jang
- Department of Radiology and Research Institute of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Juil Park
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Hee Sun Park
- Department of Radiology, Konkuk University School of Medicine, Seoul, Korea
| | - Eun Sun Lee
- Department of Radiology, ChungAng University Hospital, Chung-Ang University College of Medicine, Seoul, Korea
| | - Jeong Min Lee
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
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Petzold G, Lasser J, Rühl J, Bremer SCB, Knoop RF, Ellenrieder V, Kunsch S, Neesse A. Diagnostic accuracy of B-Mode ultrasound and Hepatorenal Index for graduation of hepatic steatosis in patients with chronic liver disease. PLoS One 2020; 15:e0231044. [PMID: 32357147 PMCID: PMC7194436 DOI: 10.1371/journal.pone.0231044] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Accepted: 03/13/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND/AIMS The aim of our study was to evaluate the diagnostic accuracy of B-Mode ultrasound and Hepatorenal Index (HRI) by high-end devices for the detection and classification of hepatic steatosis in patients with various causes of chronic liver disease (CLD). METHODS We retrospectively enrolled patients with CLD who underwent liver biopsy and baseline ultrasound between March 2016 and May 2019. Sonographic graduation of steatosis (0°-III°) using B-Mode criteria and HRI were correlated with the histological graduation (S0 (<5% fat), S1 (≥5-33%), S2 (>33-66%) and S3 (>66%). Interobserver agreement was calculated. RESULTS 157 patients were evaluated. B-Mode ultrasound had a sensitivity of 75.6% and a specificity of 76.0% to differentiate between steatosis and no steatosis (AUROC 0.758). Using B-Mode criteria for advanced steatosis (≥II°), specificity for presence of histological steatosis was ≥98.7%. For detection of advanced steatosis (≥S2), sensitivity of B-mode criteria was 90.9%. In a subgroup of patients with advanced liver fibrosis, sensitivity of B-mode criteria was 95.0% for detection of advanced steatosis (S≥2). A HRI cut-off-value of 1.46 differentiates between patients with steatosis and patients without steatosis with a sensitivity of 42.7% and a specificity of 90.7% (AUROC 0.680). Interobserver agreement of both B-Mode and HRI was good to excellent. CONCLUSION B-Mode ultrasound using high-end devices is an excellent method to detect advanced steatosis in patients with various CLD. For diagnosis of mild steatosis, modern ultrasound devices may have higher sensitivity but at the expense of specificity. Stage of fibrosis and etiology of CLD seem not to impact on diagnostic accuracy. The additional calculation of HRI seems to have no additional benefit with regard to detect or grade hepatic steatosis in our study population.
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Affiliation(s)
- Golo Petzold
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Goettingen, Goettingen, Germany
| | - Julian Lasser
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Goettingen, Goettingen, Germany
| | - Janina Rühl
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Goettingen, Goettingen, Germany
| | - Sebastian C. B. Bremer
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Goettingen, Goettingen, Germany
| | - Richard F. Knoop
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Goettingen, Goettingen, Germany
| | - Volker Ellenrieder
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Goettingen, Goettingen, Germany
| | - Steffen Kunsch
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Goettingen, Goettingen, Germany
| | - Albrecht Neesse
- Department of Gastroenterology and Gastrointestinal Oncology, University Medical Center Goettingen, Goettingen, Germany
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Pirmoazen AM, Khurana A, El Kaffas A, Kamaya A. Quantitative ultrasound approaches for diagnosis and monitoring hepatic steatosis in nonalcoholic fatty liver disease. Theranostics 2020; 10:4277-4289. [PMID: 32226553 PMCID: PMC7086372 DOI: 10.7150/thno.40249] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 02/14/2020] [Indexed: 12/13/2022] Open
Abstract
Nonalcoholic fatty liver disease is a major global health concern with increasing prevalence, associated with obesity and metabolic syndrome. Recently, quantitative ultrasound-based imaging techniques have dramatically improved the ability of ultrasound to detect and quantify hepatic steatosis. These newer ultrasound techniques possess many inherent advantages similar to conventional ultrasound such as universal availability, real-time capability, and relatively low cost along with quantitative rather than a qualitative assessment of liver fat. In addition, quantitative ultrasound-based imaging techniques are less operator dependent than traditional ultrasound. Here we review several different emerging quantitative ultrasound-based approaches used for detection and quantification of hepatic steatosis in patients at risk for nonalcoholic fatty liver disease. We also briefly summarize other clinically available imaging modalities for evaluating hepatic steatosis such as MRI, CT, and serum analysis.
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Affiliation(s)
- Amir M. Pirmoazen
- Department of Radiology, School of Medicine, Stanford University, Stanford, California
| | - Aman Khurana
- Department of Radiology, University of Kentucky, Lexington, Kentucky
| | - Ahmed El Kaffas
- Department of Radiology, Molecular Imaging Program at Stanford, School of Medicine, Stanford University, Stanford, California
| | - Aya Kamaya
- Department of Radiology, School of Medicine, Stanford University, Stanford, California
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75
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The predictive value of the hepatorenal index for detection of impaired glucose metabolism in patients with non-alcoholic fatty liver disease. Indian J Gastroenterol 2020; 39:50-59. [PMID: 32185691 DOI: 10.1007/s12664-019-01009-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 11/06/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND/PURPOSE Non-alcoholic fatty liver disease (NAFLD) patients are at increased risk of liver-related as well as cardiovascular mortality, including diabetes, coronary heart disease, and stroke, independently of traditional cardiovascular risk factors and metabolic syndrome. The aim of this study was to find out the predictive impact of hepatorenal index (HRI) in the detection of impaired glucose metabolism in asymptomatic NAFLD patients. METHODS B-mode ultrasound examinations were performed and ultrasound images from all 89 NAFLD patients aged 50.8 ± 10.1 years were analyzed by echogenicity analyzing software and HRI was acquired, and appropriate laboratory tests for liver, glucose, and lipid metabolism were undertaken. RESULTS The mean HRI was 1.345 ± 0.189. 23.59% of patients had mild NAFLD (HRI = 1.167 ± 0.041), 64.04% moderate (HRI = 1.401 ± 0.102), and 12.36% patients severe NAFLD (HRI = 1.802 ± 0.098). Impaired glucose metabolism was present in 48.31% of patients. A positive correlation was present between HRI and impaired glucose metabolism (r = 0.335, p = 0.001). The coefficients of determinations R2 for linear regression for HRI and glycated hemoglobin (HbA1c) and oral glucose tolerance test (GTT) were 0.05841 and 0.07498, respectively. The cutoff values for HRI in the detection of diabetes and prediabetes, and prediabetes only, were 1.4 and 1.38, respectively. In logistic regression, the β coefficients for oral GTT, HbA1c, or HRI were 0.62042 (p = 0.0002), 2.18036 (p = 0.0033), and 2.36986 (p = 0.012). The hazard ratio (HR) coefficients (exp [b]) for HRI, HbA1c, and oral GTT sorted according to their HR strength were 10.6958, 8.8494, and 1.8597, respectively. CONCLUSION Ultrasonographically acquired HRI has a significant predictive impact on the detection of prediabetes and diabetes in patients with NAFLD.
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Performance of B-mode ratio and 2D shear wave elastography for the detection and quantification of hepatic steatosis and fibrosis after liver transplantation. Eur J Gastroenterol Hepatol 2020; 32:222-230. [PMID: 31464783 DOI: 10.1097/meg.0000000000001500] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVES To evaluate the diagnostic performance of B-mode ratio and shear wave elastography (SWE) for the assessment of steatosis and liver fibrosis after liver transplantation. MATERIALS AND METHODS Patients hospitalized for a systematic check-up after liver transplantation underwent the same day hepatic ultrasound with B-mode ratio and SWE, followed by liver biopsy and biological examinations. Steatosis was measured using hepatorenal sonographic index of B-mode ratio and liver stiffness using SWE. Liver biopsy, used as gold standard, graded steatosis S0(<5%), S1(5-<33%), S2(33-<66%), or S3(≥66%) and liver fibrosis according to the Metavir score. The results were tested against two external validation cohorts. RESULTS Fifty-eight patients were included. Mean B-ratio value was significantly higher in patients with steatosis (0.95 ± 0.13 versus 1.39 ± 0.41, P < 0.001). A B-mode ratio cutoff values at least 0.985 was found optimal for steatosis' detection [area under the receiver operating characteristic curve (AUROC) 0.902 ± 0.05, sensitivity 95%, specificity 79%]. A B-mode ratio value below 0.9 ruled out steatosis and above 1.12 ruled in steatosis. Mean SWE value for patients without significant fibrosis (≤F1) was 15.90 ± 9.2 versus 19.27 ± 7.7 kPa for patients with fibrosis (P = 0.185). A 2D-SWE value below 7.85 kPa ruled out significant fibrosis and above 26.35 kPa ruled it in. CONCLUSION The B-mode ratio is an efficient and accurate tool for the noninvasive diagnostic of steatosis in postliver transplantation patients. Yet, because liver stiffness is higher in postliver transplantation patients, 2D-SWE is not reliable in the diagnosis of significant fibrosis after liver transplantation.
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Salomone F, Ivancovsky-Wajcman D, Fliss-Isakov N, Webb M, Grosso G, Godos J, Galvano F, Shibolet O, Kariv R, Zelber-Sagi S. Higher phenolic acid intake independently associates with lower prevalence of insulin resistance and non-alcoholic fatty liver disease. JHEP Rep 2020; 2:100069. [PMID: 32195455 PMCID: PMC7078532 DOI: 10.1016/j.jhepr.2020.100069] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 12/11/2019] [Accepted: 12/25/2019] [Indexed: 12/25/2022] Open
Abstract
Background & Aims The inverse association between non-alcoholic fatty liver disease (NAFLD) and diets rich in fruit and vegetables has been demonstrated, but the specific compounds that may be responsible for this association need to be elucidated. The aim of this study was to test the association between phenolic acid consumption, NAFLD, and insulin resistance (IR). Methods A cross-sectional cohort of individuals included in a metabolic screening program was studied. Liver steatosis was evaluated by ultrasonography and quantified by the hepatorenal index (HRI); fibrosis was assessed by FibroTest; IR by the sample upper quartile of the homeostatic model assessment score. Dietary intake was measured by a food frequency questionnaire. The phenolic acid content of food was calculated according to Phenol-Explorer. Results A total of 789 individuals were included (52.6% men, age 58.83 ± 6.58 years). Higher (above the upper median) phenolic acid intake was inversely associated with the presence of NAFLD (odds ratio [OR] 0.69; 95% CI 0.49–0.98; p = 0.036), higher HRI (OR 0.64; 95% CI 0.45–0.91; p = 0.013) and higher IR (OR 0.61; 95% CI 0.42–0.87; p = 0.007), when adjusted for age, gender, body mass index, and lifestyle factors. Considering specific classes of phenolic acids, higher hydroxybenzoic acid intake was independently associated with lower odds of NAFLD, higher HRI and fibrosis. Higher hydroxycinnamic acid intake was independently associated with lower odds of IR. Conclusion A higher intake of phenolic acids is associated with a lower prevalence of liver steatosis and IR in a cross-sectional study, suggesting a possible protective effect that requires confirmation in prospective studies. Lay summary High dietary intake of total phenolic acids is associated with a lower prevalence of non-alcoholic fatty liver disease and insulin resistance. A high intake of hydroxybenzoic acids, a class of phenolic acids, is associated with a lower prevalence of steatosis and clinically significant fibrosis, while a high intake of hydroxycinnamic acids, another class of phenolic acids, is associated with a lower prevalence of insulin resistance. High intake of total phenolic acids is associated with a lower prevalence of NAFLD and insulin resistance. High intake of hydroxybenzoic acids is associated with a lower prevalence of steatosis and fibrosis. High intake of hydroxycinnamic acids is associated with lower prevalence of insulin resistance.
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Key Words
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- AUS, abdominal ultrasonography
- BMI, body mass index
- CRP, C-reactive protein
- FFQ, food frequency questionnaire
- HOMA, homeostatic model assessment
- HRI, hepatorenal index
- Hb1Ac, glycated hemoglobin
- IR, Insulin resistance
- NAFLD
- NAFLD, non-alcoholic fatty liver disease
- OR, odds ratio
- SFAs, saturated fatty acids
- diet
- fibrosis
- insulin resistance
- metabolic syndrome
- phenolic acids
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Affiliation(s)
- Federico Salomone
- Division of Gastroenterology, Ospedale di Acireale, Azienda Sanitaria Provinciale di Catania, Catania, Italy
| | | | - Naomi Fliss-Isakov
- Department of Gastroenterology, Tel-Aviv Medical Center, Tel-Aviv, Israel
| | - Muriel Webb
- Department of Gastroenterology, Tel-Aviv Medical Center, Tel-Aviv, Israel.,The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Giuseppe Grosso
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | - Fabio Galvano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Oren Shibolet
- Department of Gastroenterology, Tel-Aviv Medical Center, Tel-Aviv, Israel.,The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Revital Kariv
- Department of Gastroenterology, Tel-Aviv Medical Center, Tel-Aviv, Israel.,The Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Shira Zelber-Sagi
- School of Public Health, University of Haifa, Haifa, Israel.,Department of Gastroenterology, Tel-Aviv Medical Center, Tel-Aviv, Israel
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Käräjämäki AJ, Hukkanen J, Kauma H, Kesäniemi YA, Ukkola O. Metabolic syndrome but not genetic polymorphisms known to induce NAFLD predicts increased total mortality in subjects with NAFLD (OPERA study). Scandinavian Journal of Clinical and Laboratory Investigation 2019; 80:106-113. [PMID: 31851849 DOI: 10.1080/00365513.2019.1700428] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Metabolic syndrome (MetS) and genetic polymorphisms PNPLA3 rs738409, TM6SF2 rs58542926 and MBOAT7 rs641738 are known inductors of non-alcoholic fatty liver disease (NAFLD). However, knowledge about how these affect the mortality of subjects with NAFLD is scarce. Therefore, we investigated the impact of MetS, PNPLA3 rs738409, TM6SF2 rs58542926 and MBOAT7 rs641738 on overall and cardiovascular disease (CVD) specific mortality among subjects with or without NAFLD. NAFLD diagnosis was based on liver ultrasound at the baseline. After this and other comprehensive examinations, 958 middle-aged Finns, 249 with NAFLD, were followed for 21 years. The mortality data was gathered from the National Death Registry. After multiple adjustments, the NAFLD individuals with MetS had increased risk of overall mortality as compared to the NAFLD subjects without MetS [2.054 (1.011-4.173, p = .046)]. However, PNPLA3 rs738409 [1.049 (0.650-1.692, p = .844)], TM6SF2 rs58542926 [0.721 (0.369-1.411, p = .340)] or MBOAT7 rs641738 [0.885 (0.543-1.439, p = .621)] did not affect the overall mortality. MetS was also a marker of increased risk of CVD mortality (15% vs. 2%, p = .013) while genetic polymorphisms did not affect CVD mortality. In conclusion, MetS, but not the gene polymorphisms studied, predicts increased overall and CVD-specific mortality among NAFLD subjects.
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Affiliation(s)
- Aki Juhani Käräjämäki
- Department of Gastroenterology, Vaasa Central Hospital, Vaasa, Finland.,Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Janne Hukkanen
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Heikki Kauma
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Y Antero Kesäniemi
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland
| | - Olavi Ukkola
- Research Unit of Internal Medicine, Medical Research Center Oulu, Oulu University Hospital, University of Oulu, Oulu, Finland
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Koplay M, Gok M, Sivri M. The association between coronary artery disease and nonalcoholic fatty liver disease and noninvasive imaging methods. ELECTRONIC JOURNAL OF GENERAL MEDICINE 2019. [DOI: 10.29333/ejgm/110689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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80
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Medellin A, Pridham G, Urbanski SJ, Jayakumar S, Wilson SR. Acoustic Radiation Force Impulse and Conventional Ultrasound in the Prediction of Cirrhosis Complicating Fatty Liver: Does Body Mass Index Independently Alter the Results? ULTRASOUND IN MEDICINE & BIOLOGY 2019; 45:3160-3171. [PMID: 31543356 DOI: 10.1016/j.ultrasmedbio.2019.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 07/23/2019] [Accepted: 08/02/2019] [Indexed: 06/10/2023]
Abstract
We investigated whether ultrasound (US) could quantify steatosis and fibrosis in non-alcoholic fatty liver disease (NAFLD). Estimates of fat by gray-scale, hepatorenal index (HRI) and fibrosis by acoustic radiation force impulse (ARFI) were made using the interquartile range (IQR)/median for ARFI quality. Biopsy was the gold standard. US fat assessment correlated with histologic grade and predicted steatosis. HRI predicted steatosis but did not improve accuracy. ARFI of good quality was highly sensitive toward severe fibrosis. The median ARFI value depended linearly on body mass index (BMI). Poor quality ARFI data had higher histologic steatosis, leading to higher mean steatosis grades in rejected data (p = 0.018). The ARFI quality cut with IQR/median >0.15 or >0.3 excluded many more patients with severe steatosis versus normal, influenced by increasing BMI. By combining the baseline US with ARFI, patients can be concurrently diagnosed for steatosis and fibrosis, two of the key pathologies of NAFLD and non-alcoholic steatohepatitis (NASH). However, severe steatosis and high BMI may falsely alter ARFI results.
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Affiliation(s)
- Alexandra Medellin
- Department of Radiology, University of Calgary, Foothills Medical Centre, Calgary, Canada
| | - Glen Pridham
- Department of Radiology, University of Calgary, Foothills Medical Centre, Calgary, Canada
| | - Stefan J Urbanski
- Department of Medicine and Gastroenterology, University of Calgary, Calgary, Canada
| | | | - Stephanie R Wilson
- Department of Radiology, University of Calgary, Foothills Medical Centre, Calgary, Canada; Department of Medicine and Gastroenterology, University of Calgary, Calgary, Canada.
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81
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Chuah KH, Chan WK. Quantification of Liver Fat in NAFLD: Available Modalities and Clinical Significance. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s11901-019-00493-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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82
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Ferraioli G, Soares Monteiro LB. Ultrasound-based techniques for the diagnosis of liver steatosis. World J Gastroenterol 2019; 25:6053-6062. [PMID: 31686762 PMCID: PMC6824276 DOI: 10.3748/wjg.v25.i40.6053] [Citation(s) in RCA: 217] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/27/2019] [Accepted: 10/17/2019] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the leading cause of diffuse liver disease. An accurate estimate of the fat in the liver is important in the diagnostic work-up of patients with NAFLD because the degree of liver steatosis is linked to the metabolic syndrome and the cardiovascular risk. Ultrasound (US) B-mode imaging allows to subjectively estimate the fatty infiltration in the liver; however, it has a low performance for the detection of mild steatosis. Quantitative US is based on the analysis of the radiofrequency echoes detected by an US system, and it allows to calculate a backscatter coefficient or an attenuation coefficient or the sound speed. The estimation of the backscatter coefficient is rather cumbersome and requires the use of a phantom for addressing all sources of variability. Controlled attenuation parameter (CAP) available on the FibroScan® system (Echosens, France) measures the attenuation of the US beam. CAP is accurate in grading fatty infiltration-even though there is an overlap between consecutive grade of liver steatosis-and the values are not influenced by liver fibrosis. Several US manufacturers are developing or have already developed software for quantifying the attenuation of the US beam. Preliminary results show that proprietary technologies implemented in US systems seem more accurate than CAP for grading liver steatosis. Another available method for quantifying liver steatosis is based on the computation of the sound speed and the initial results appear promising.
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Affiliation(s)
- Giovanna Ferraioli
- Dipartimento di Scienze Clinico-Chirurgiche, Diagnostiche e Pediatriche, Medical School University of Pavia, Pavia 27100, Italy
- Clinical Sciences and Infectious Diseases Department, Fondazione IRCCS Policlinico S. Matteo, Pavia 27100, Italy
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83
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Tahara K, Akahane T, Namisaki T, Moriya K, Kawaratani H, Kaji K, Takaya H, Sawada Y, Shimozato N, Sato S, Saikawa S, Nakanishi K, Kubo T, Fujinaga Y, Furukawa M, Kitagawa K, Ozutsumi T, Tsuji Y, Kaya D, Ogawa H, Takagi H, Ishida K, Mitoro A, Yoshiji H. Thyroid-stimulating hormone is an independent risk factor of non-alcoholic fatty liver disease. JGH OPEN 2019; 4:400-404. [PMID: 32514444 PMCID: PMC7273701 DOI: 10.1002/jgh3.12264] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 09/03/2019] [Indexed: 12/14/2022]
Abstract
Background and Aim Hypothyroidism might play a crucial role in the pathogenesis of non‐alcoholic fatty liver disease (NAFLD). The association of subclinical hypothyroidism with NAFLD has been inconsistent. The relationship of NAFLD with thyroid function parameters and subclinical hypothyroidism was determined. Methods This cross‐sectional study included 70 patients with subclinical hypothyroidism and 70 controls with euthyroidism matched according to gender, age, and body mass index (BMI). NAFLD was diagnosed via abdominal ultrasonography. The association between NAFLD and subclinical hypothyroidism was analyzed. Results The prevalence of NAFLD was significantly higher in patients with subclinical hypothyroidism than in those with euthyroidism. Multivariate analysis showed that subclinical hypothyroidism was an independent risk factor of NAFLD adjusted by metabolic‐related factors, such as BMI, triglyceride, high‐density lipoprotein‐cholesterol, hypertension, and diabetes. Thyroid‐stimulating hormone (TSH) was an independent risk factor of NAFLD adjusted by the same metabolic‐related factors, but free thyroxine (FT4) was not a risk factor. The FIB‐4 index, a noninvasive marker of liver fibrosis was significantly higher in patients with subclinical hypothyroidism than in those with euthyroidism. Compared with patients with euthyroidism, the proportion of the FIB‐4 index ≥2.67 was significantly higher, and the proportion of the FIB‐4 index <1.30 was lower in patients with subclinical hypothyroidism. Conclusions TSH elevation even within the euthyroid range is an independent risk factor of NAFLD and may influence the progression of liver fibrosis, even with a normal FT4 level.
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Affiliation(s)
- Kazuki Tahara
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Takemi Akahane
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Tadashi Namisaki
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Kei Moriya
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Hideto Kawaratani
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Kosuke Kaji
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Hiroaki Takaya
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Yasuhiko Sawada
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Naotaka Shimozato
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Shinya Sato
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Soichiro Saikawa
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Keisuke Nakanishi
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Takuya Kubo
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Yukihisa Fujinaga
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Masanori Furukawa
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Koh Kitagawa
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Takahiro Ozutsumi
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Yuuki Tsuji
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Daisuke Kaya
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Hiroyuki Ogawa
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Hirotetsu Takagi
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Koji Ishida
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Akira Mitoro
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
| | - Hitoshi Yoshiji
- Third Department of Internal Medicine Nara Medical University Kashihara Japan
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84
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Tarantino G, Citro V, Conforti P, Balsano C, Capone D. Is There a Link between Basal Metabolic Rate, Spleen Volume and Hepatic Growth Factor Levels in Patients with Obesity-Related NAFLD? J Clin Med 2019; 8:jcm8101510. [PMID: 31547124 PMCID: PMC6832562 DOI: 10.3390/jcm8101510] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 09/10/2019] [Accepted: 09/16/2019] [Indexed: 01/30/2023] Open
Abstract
Background: Recent pieces of research point to a link between basal metabolic rate (BMR) and non-alcoholic fatty liver disease (NAFLD) or hepatic steatosis (HS). The spleen in obese patients is associated with the cardiovascular system. Enlargement of the spleen is suggestive of nonalcoholic steatohepatitis (NASH). Patients with NASH present an increase in growth factor (HGF) as well as those with advanced heart failure. Interleukin-16 and interleukin-12p40 levels were found to correlate significantly with BMI, and waist circumference. Aim: We tried to find a relationship between BMR, spleen length and HGF. Methods: We analysed retrospective data from 80 obese patients with NAFLD. We evaluated indices of indirect calorimetry by the bioimpendance analysis; carotid intima-media thickness (IMT), spleen length (SLD) and HS by ultrasonography; serum HGF, IL-16, IL-12p40 and IL-6 concentrations by a magnetic bead-based multiplex immunoassays and the severity of NAFLD by BARD score > 2. Results: HGF levels of the obese were higher than those of controls, p < 0.001. At linear regression, BMR was foreseen by spleen length (p < 0.001), which was predicted by HGF (p = 0.04). BMR was predicted by IL-16 (p = 0.005), which predicted HGF, p = 0.034. Only fat mass, among other factors, predicted early atherosclerosis, p = 0.017; IL-12p40 did not predict IMT, HGF and BMR (p = 0.57, 0.09 and 0.59, respectively). The BARD score > 2 was negatively predicted by BMR and FFM (p =0.032 and 0.031, respectively), at the logistic regression. Interesting findings at the extended regression (mediation effect) were: IL-16 was likely causal in predicting BMR by HGF levels; HGF was influential in predicting BMR by SLD level. HS was predicted by SLD in males (p = 0.014), of advanced age (p < 0.001) and by BMR (p < 0.001). IL-6 concentrations, but not BMR were influential in the prediction of HS by SLD. Conclusion: These data reinforce the concept that the immune system is a sensor of the metabolic state, showing a link between HGF levels and BMR, which is mediated by IL-16 (cytokine inducing a cascade of inflammatory factors), and ascertaining the influential effect of the spleen, as main immune organ.
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Affiliation(s)
- Giovanni Tarantino
- Department of Clinical Medicine and Surgery, Federico II University Medical School of Naples, 80131 Napoli NA, Italy.
| | - Vincenzo Citro
- Department of General Medicine, "Umberto I" Hospital, Nocera Inferiore (Sa), 84014 Nocera Inferiore SA, Italy.
| | - Paolo Conforti
- "Federico II" University Medical School of Naples, 80131 Napoli NA, Italy.
| | - Clara Balsano
- Department of Clinical Medicine, Life, Health & Environmental Sciences-MESVA, University of L'Aquila, 67100 L'Aquila AQ, Italy.
| | - Domenico Capone
- Care Department of Public Health and Drug-Use, Section of Medical Pharmacology and Toxicology, "Federico II" University, 80131 Naples NA, Italy.
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85
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Jain V, Kumar A, Ahmad N, Jana M, Kalaivani M, Kumar B, Shastri S, Jain O, Kabra M. Genetic polymorphisms associated with obesity and non-alcoholic fatty liver disease in Asian Indian adolescents. J Pediatr Endocrinol Metab 2019; 32:749-758. [PMID: 31216264 DOI: 10.1515/jpem-2018-0543] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 04/23/2019] [Indexed: 12/28/2022]
Abstract
Background The objective of this study was to investigate the association of polymorphisms in four genes, tumor necrosis factor-α (TNFA), patatin-like phospholipase domain containing 3 (PNPLA3), adiponectin (ADIPOQ) and apolipoprotein C3 (APOC3), with obesity and non-alcoholic fatty liver disease (NAFLD) in Asian Indian adolescents. Methods In this case-control study, 218 Asian Indian adolescents with overweight/obesity and 86 lean healthy adults without fatty liver were enrolled. Hepatic steatosis was assessed and graded by ultrasonography (USG). Serum insulin, lipids, alanine aminotransferase (ALT), aspartate aminotransferase (AST), TNF-α, adiponectin and apolipoprotein C3 were measured and genotyping was done. Frequencies of variant and wild genotypes in all adolescents and in the subgroups without steatosis, with grade 1 steatosis and with grade 2 or 3 steatosis were compared to those in the controls. The frequencies were also compared in the overweight adolescents with grade 2 or 3 steatosis and without steatosis. Results Variant genotypes of polymorphisms -863 C > A and -1031 T > C of the TNFA gene, 455 T > C of the APOC3 gene and the wild type of +276 G > T of the ADIPOQ gene were associated with obesity with odds ratios (OR, 95% confidence interval [CI]) of 2.5 (1.5-4.4), 2.5 (1.5-4.2), 2.0 (1.1-3.6) and 2.5 (1.4-5.0), respectively. Polymorphisms 455 T > C of APOC3 and rs738409 C > G of PNPLA3 were associated with NAFLD. Fasting insulin and triglycerides (TG) were higher in the adolescents with homozygous variant polymorphisms -1031 T > C of TNFA and 455 T > C of APOC3 genes, respectively. Conclusions Several polymorphisms were noted to have a significant association with obesity and NAFLD in Asian Indian adolescents.
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Affiliation(s)
- Vandana Jain
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Anil Kumar
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Nayeem Ahmad
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Manisha Jana
- Department of Radiology, All India Institute of Medical Sciences, New Delhi, India
| | - Mani Kalaivani
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Brijesh Kumar
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Shivaram Shastri
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Oshima Jain
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Madhulika Kabra
- Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
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86
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Sherf-Dagan S, Zelber-Sagi S, Buch A, Bar N, Webb M, Sakran N, Raziel A, Goitein D, Keidar A, Shibolet O. Prospective Longitudinal Trends in Body Composition and Clinical Outcomes 3 Years Following Sleeve Gastrectomy. Obes Surg 2019; 29:3833-3841. [PMID: 31301031 DOI: 10.1007/s11695-019-04057-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND AIMS Longitudinal assessment of body composition following bariatric surgery allows monitoring of health status. Our aim was to elucidate trends of anthropometric and clinical outcomes 3 years following sleeve gastrectomy (SG). METHODS A prospective cohort study of 60 patients who underwent SG. Anthropometrics including body composition analysis measured by multi-frequency bioelectrical impedance analysis, blood tests, liver fat content measured by abdominal ultrasound and habitual physical activity were evaluated at baseline and at 6 (M6), 12 (M12), and 36 (M36) months post-surgery. RESULTS Sixty patients (55% women, age 44.7 ± 8.7 years) who completed the entire follow-up were included. Fat mass (FM) was reduced significantly 1 year post-surgery (55.8 ± 11.3 to 26.7 ± 8.3 kg; P < 0.001) and then increased between 1 and 3 years post-operatively, but remained below baseline level (26.7 ± 8.3 to 33.1 ± 11.1 kg; P < 0.001). Fat free mass (FFM) decreased significantly during the first 6 months (64.7 ± 14.3 to 56.9 ± 11.8 kg; P < 0.001), slightly decreased between M6 and M12 and then reached a plateau through M36. Weight loss "failure" (< 50% excess weight loss) was noticed in 5.0% and 28.3% of patients at M12 and M36, respectively. Markers of lipid and glucose metabolism changed thereafter in parallel to the changes observed in FM, with the exception of HDL-C, which increased continuingly from M6 throughout the whole period analyzed (45.0 ± 10.2 to 59.5 ± 15.4 mg/dl; P < 0.001) and HbA1c which continued to decrease between M12 and M36 (5.5 ± 0.4 to 5.3 ± 0.4%; P < 0.001). There were marked within-person variations in trends of anthropometric and clinical parameters during the 3-year follow-up. CONCLUSIONS Weight regain primarily attributed to FM with no further decrease in FFM occurs between 1 and 3 years post-SG. FM increase at mid-term may underlie the recurrence of metabolic risk factors and can govern clinical interventions.
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Affiliation(s)
- Shiri Sherf-Dagan
- Department Gastroenterology, Tel-Aviv Medical Center, Tel Aviv, Israel. .,Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel. .,Department of Nutrition, Assuta Medical Center, 20 Habarzel St., 69710, Tel Aviv, Israel.
| | - Shira Zelber-Sagi
- Department Gastroenterology, Tel-Aviv Medical Center, Tel Aviv, Israel.,School of Public Health, Faculty of Social Welfare and Health Sciences, University of Haifa, Haifa, Israel
| | - Assaf Buch
- Institute of Endocrinology, Metabolism and Hypertension, Tel-Aviv Sourasky Medical Center, Tel Aviv, Israel.,School of Nutritional Sciences, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Nir Bar
- Department Gastroenterology, Tel-Aviv Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
| | - Muriel Webb
- Department Gastroenterology, Tel-Aviv Medical Center, Tel Aviv, Israel
| | - Nasser Sakran
- Israeli Center for Bariatric Surgery (ICBS), Assia Medical Group, Assuta Medical Center, Tel Aviv, Israel.,Department of Surgery A, Emek Medical Center, Afula, Israel.,Rappaport Faculty of Medicine, Technion Israel Institute of Technology, Haifa, Israel
| | - Asnat Raziel
- Israeli Center for Bariatric Surgery (ICBS), Assia Medical Group, Assuta Medical Center, Tel Aviv, Israel
| | - David Goitein
- Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel.,Israeli Center for Bariatric Surgery (ICBS), Assia Medical Group, Assuta Medical Center, Tel Aviv, Israel.,Department of Surgery C, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | - Andrei Keidar
- Department of General Surgery, Assuta Ashdod Public Hospital, The Ben-Gurion University, Be'er Sheva, Israel
| | - Oren Shibolet
- Department Gastroenterology, Tel-Aviv Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
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87
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Squillace N, Soria A, Bozzi G, Gori A, Bandera A. Nonalcoholic fatty liver disease and steatohepatitis in people living with HIV. Expert Rev Gastroenterol Hepatol 2019; 13:643-650. [PMID: 31081390 DOI: 10.1080/17474124.2019.1614913] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: The burden of nonalcoholic fatty liver disease (NAFLD) and nonalcoholic steatohepatitis (NASH) is increasing worldwide. This phenomenon poses a potentially dangerous risk of rise in mortalities caused by cirrhosis and liver cancer. Owing to a complex combination of factors, NAFLD and NASH arise in a majority of people living with HIV (PLWH), but accurate estimates of prevalence differ, depending on sample selection, type of analysis, and data interpretation. The wide range of diagnostic tools used to assess liver steatosis and lack of control groups in many studies further contributes to current difficulties in properly assessing prevalence of these conditions. Areas covered: Thoroughly scrutinizing the current literature, we compared the prevalence of NAFLD and NASH in PLWH to rates found in the general population. We highlighted strengths and limitations of the studies, in order to determine the effective impact of these medical conditions in PLWH. Expert opinion: The prevalence and progression of NAFLD in human immunodeficiency virus (HIV) infection are reported to be widely variable. HIV infection itself and antiretroviral treatment have been demonstrated to play a role in the development of NAFLD. Larger and more effective studies are needed to evaluate the effects of NASH in PLWH and its progression.
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Affiliation(s)
- Nicola Squillace
- a Infectious Diseases Unit, Azienda Socio Sanitaria Territoriale di MONZA, San Gerardo Hospital , University of Milano-Bicocca , Monza , Italy
| | - Alessandro Soria
- a Infectious Diseases Unit, Azienda Socio Sanitaria Territoriale di MONZA, San Gerardo Hospital , University of Milano-Bicocca , Monza , Italy
| | - Giorgio Bozzi
- b Infectious Diseases Unit, Department of Internal Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico , University of Milan , Milan , Italy
| | - Andrea Gori
- b Infectious Diseases Unit, Department of Internal Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico , University of Milan , Milan , Italy
| | - Alessandra Bandera
- b Infectious Diseases Unit, Department of Internal Medicine, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico , University of Milan , Milan , Italy
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88
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Ballestri S, Nascimbeni F, Lugari S, Lonardo A, Francica G. A critical appraisal of the use of ultrasound in hepatic steatosis. Expert Rev Gastroenterol Hepatol 2019; 13:667-681. [PMID: 31104523 DOI: 10.1080/17474124.2019.1621164] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Introduction: Nonalcoholic fatty liver disease (NAFLD) spans steatosis through nonalcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). NAFLD carries an increased risk of cardio-metabolic and liver-related events accounting for a substantial economic burden. Given that the natural history of NAFLD is critically dependent on the stage of fibrosis, non-invasively identifying the subgroup of patients at a higher risk of progressive disease is key. Areas covered: This review highlights the recent developments in the use of ultrasound-based techniques in NAFLD and their performance in predicting metabolic derangements, cardiovascular risk, and progression of liver disease, notably including diagnosis of fibrosing NASH, identification, and treatment of HCC. Expert opinion: Our ability to identify NAFLD patients and to estimate steatofibrosis with various ultrasound-based techniques has undergone tremendous progress over the last few years. However, it is more difficult to capture the inflammatory component of NASH with such ultrasound-assisted techniques. Moreover, semi-quantitative, quantitative, elastographic, and contrast-enhanced ultrasound techniques are increasingly being appreciated and made available but not all such techniques will gain success in the clinical and research area. Therefore, further research will precisely define the role of the most innovative ultrasonographic techniques, while reducing costs and increasing feasibility.
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Affiliation(s)
- Stefano Ballestri
- a Internal Medicine Unit , Azienda USL of Modena, Pavullo Hospital , Modena , Italy
| | - Fabio Nascimbeni
- b Ospedale Civile di Baggiovara, Metabolic Medicine Unit , Azienda Ospedaliero Universitaria of Modena , Modena , Italy
| | - Simonetta Lugari
- c Ospedale Civile di Baggiovara, Metabolic Medicine Unit , Azienda Ospedaliero-Universitaria of Modena and University of Modena and Reggio Emilia , Modena , Italy
| | - Amedeo Lonardo
- b Ospedale Civile di Baggiovara, Metabolic Medicine Unit , Azienda Ospedaliero Universitaria of Modena , Modena , Italy
| | - Giampiero Francica
- d Interventional Ultrasound Unit , Pineta Grande Hospital , Castel Volturno , Italy
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89
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D'Souza JC, Sultan LR, Hunt SJ, Schultz SM, Brice AK, Wood AKW, Sehgal CM. B-mode ultrasound for the assessment of hepatic fibrosis: a quantitative multiparametric analysis for a radiomics approach. Sci Rep 2019; 9:8708. [PMID: 31213661 PMCID: PMC6581954 DOI: 10.1038/s41598-019-45043-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Accepted: 05/29/2019] [Indexed: 01/03/2023] Open
Abstract
Hepatic fibrosis and cirrhosis are a growing global health problem with increasing mortality rates. Early diagnosis and staging of hepatic fibrosis represent a major challenge. Currently liver biopsy is the gold standard for fibrosis assessment; however, biopsy requires an invasive procedure and is prone to sampling error and reader variability. In the current study we investigate using quantitative analysis of computer-extracted features of B-mode ultrasound as a non-invasive tool to characterize hepatic fibrosis. Twenty-two rats were administered diethylnitrosamine (DEN) orally for 12 weeks to induce hepatic fibrosis. Four control rats did not receive DEN. B-mode ultrasound scans sampling throughout the liver were acquired at baseline, 10, and 13 weeks. Computer extracted quantitative parameters representing brightness (echointensity, hepatorenal index) and variance (heterogeneity, anisotropy) of the liver were studied. DEN rats showed an increase in echointensity from 37.1 ± SD 7.8 to 53.5 ± 5.7 (10 w) to 57.5 ± 6.1 (13 w), while the control group remained unchanged at an average of 34.5 ± 4.5. The three other features studied increased similarly over time in the DEN group. Histologic analysis showed METAVIR fibrosis grades of F2-F4 in DEN rats and F0-F1 in controls. Increasing imaging parameters correlated with increasing METAVIR grades, and anisotropy showed the strongest correlation (ρ = 0.58). Sonographic parameters combined using multiparametric logistic regression were able to differentiate between clinically significant and insignificant fibrosis. Quantitative B-mode ultrasound imaging can be implemented in clinical settings as an accurate non-invasive tool for fibrosis assessment.
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Affiliation(s)
- Julia C D'Souza
- Ultrasound Research Lab, Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA.,Penn Image-Guided Interventions Lab, University of Pennsylvania, Philadelphia, PA, USA
| | - Laith R Sultan
- Ultrasound Research Lab, Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA.
| | - Stephen J Hunt
- Ultrasound Research Lab, Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA.,Penn Image-Guided Interventions Lab, University of Pennsylvania, Philadelphia, PA, USA
| | - Susan M Schultz
- Ultrasound Research Lab, Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Angela K Brice
- University Laboratory Animal Resources, University of Pennsylvania, Philadelphia, PA, USA.,Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Andrew K W Wood
- Ultrasound Research Lab, Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA.,Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Chandra M Sehgal
- Ultrasound Research Lab, Department of Radiology, University of Pennsylvania, Philadelphia, PA, USA
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90
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Angiotensin II Type 1 Receptor rs5186 Gene Variant Predicts Incident NAFLD and Associated Hypertension: Role of Dietary Fat-Induced Pro-Inflammatory Cell Activation. Am J Gastroenterol 2019; 114:607-619. [PMID: 30920415 DOI: 10.14309/ajg.0000000000000154] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Hypertension has been linked to the presence and severity of nonalcoholic fatty liver disease (NAFLD) through unclear mechanisms. The gain-of-function rs5186 A1166C variant in angtiotensin receptor type 1 (AGTR1) gene has been linked to hypertension, cardiovascular disease and metabolic syndrome. We assessed the impact of AGTR1 A1166C variant on NAFLD incidence and severity and on glucose and lipid metabolism and explored the underlying mechanisms. METHODS We followed up 314 healthy nonobese, nondiabetic, nonhypertensive, insulin-sensitive participants in a population-based study, characterized for AGTR1 rs5186 A1166C variant, adipokine profile, inflammatory and endothelial dysfunction markers. An independent cohort of 78 biopsy-proven nondiabetic NAFLD patients and controls underwent an oral glucose tolerance test with Minimal Model analysis of glucose homeostasis, and an oral fat tolerance test with measurement of plasma lipoproteins, adipokines, MCP-1, calprotectin, and nuclear factor-κB activation in circulating mononuclear cells. RESULTS AGTR1 A1166C polymorphism predicted 9.8-year incident NAFLD (odds ratio: 1.67, 95% CI: 1.26-2.21) and hypertension (odds ratio: 1.49, 95% CI: 1.12-2.63) and 9-year increase in cardiovascular disease risk and endothelial dysfunction markers. In the cross-sectional cohort, AGTR1 C allele carriers had higher insulin resistance. Despite comparable fasting lipid profiles, AGTR1 C allele carriers showed postprandial triglyceride-rich and cholesterol-rich VLDL lipoprotein accumulation, higher resistin, MCP-1 and calprotectin responses and nuclear factor-κB activation in mononuclear cells, and a blunted postprandial adiponectin response to fat, which predicted liver histology, hepatocyte apoptosis activation, insulin resistance, and endothelial dysfunction. DISCUSSION AGTR1 A1166C variant affects liver disease, insulin resistance, and endothelial dysfunction in NAFLD, at least in part by modulating adipokine, chemokine, and pro-inflammatory cell activation in response to fat ingestion.
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91
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Purcell Y, Copin P, Paradis V, Vilgrain V, Ronot M. Lessons learnt from pathologic imaging correlation in the liver: an historical perspective. Br J Radiol 2019; 92:20180701. [PMID: 30604641 DOI: 10.1259/bjr.20180701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Imaging and pathology can be considered as two sides of the same diagnostic coin. Yet, pathology remains the gold-standard technique for the diagnosis of most diseases. Nevertheless, significant and constant progress in imaging has been made thanks to fruitful rad-path correlations. The aim of this article is to show how much imaging has benefited from pathology and to illustrate the different ways in which imaging has evolved according to different types of pathological references. Imaging of hepatocellular carcinoma shows how image-based knowledge and expertise can be exploited to yield a non-invasive diagnosis approaching that of a fixed, robust pathological reference. Hepatocellular adenomas provide an example of the constant radiological evolutions triggered by changing pathological definitions. Finally, hepatic steatosis illustrates the possibility for imaging to surpass its historical reference, and become a new gold-standard. For these three examples, we have taken a historical approach to demonstrate how rad-path interminglement creates knowledge.
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Affiliation(s)
- Yvonne Purcell
- 1 Department of Radiology, Hôpitaux Universitaires Paris Nord Val de Seine , Clichy , France
| | - Pauline Copin
- 1 Department of Radiology, Hôpitaux Universitaires Paris Nord Val de Seine , Clichy , France
| | - Valérie Paradis
- 2 Department of Pathology, Hôpitaux Universitaires Paris Nord Val de Seine , Clichy , France.,3 University Paris Diderot, Sorbonne Paris Cité , Paris , France
| | - Valérie Vilgrain
- 1 Department of Radiology, Hôpitaux Universitaires Paris Nord Val de Seine , Clichy , France.,3 University Paris Diderot, Sorbonne Paris Cité , Paris , France.,4 Centre de recherche biomédicale Bichat-Beaujon , Paris , France
| | - Maxime Ronot
- 1 Department of Radiology, Hôpitaux Universitaires Paris Nord Val de Seine , Clichy , France.,3 University Paris Diderot, Sorbonne Paris Cité , Paris , France.,4 Centre de recherche biomédicale Bichat-Beaujon , Paris , France
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92
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Tarantino G, Costantini S, Citro V, Conforti P, Capone F, Sorice A, Capone D. Interferon-alpha 2 but not Interferon-gamma serum levels are associated with intramuscular fat in obese patients with nonalcoholic fatty liver disease. J Transl Med 2019; 17:8. [PMID: 30602382 PMCID: PMC6317208 DOI: 10.1186/s12967-018-1754-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 12/21/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Intramuscular triglycerides (IMTGs) represent an important energy supply and a dynamic fat-storage depot that can expand during periods of elevated lipid availability and a fatty acid source. Ultrasonography (US) of human skeletal muscles is a practical and reproducible method to assess both IMTG presence and entity. Although a crosstalk between cytokines in skeletal muscle and adipose tissue has been suggested in obesity, condition leading to hepatic steatosis (HS) or better defined as nonalcoholic fatty liver disease and cancer, there are still questions to be answered about the role of interferons (IFNs), alpha as well as gamma, and IMTG in obesity. We aimed at discovering any correlation between IFNs and IMTG. METHODS We analysed anthropometric data, metabolic parameters and imaging features of a population of 80 obese subjects with low-prevalence of co-morbidities but HS in relation to IFNs serum levels. A population of 38 healthy subjects (21 males) served as controls. The levels of serum IFNs were detected by a magnetic bead-based multiplex immunoassays. RESULTS Serum concentrations of IFN-alpha 2 were increased, while serum levels of IFN-gamma were decreased confronted with those of controls; the severity of IMTG, revealed at US as Heckmatt scores, was inversely predicted by IFN-alpha 2 serum concentrations; IMTG scores were not predicted by serum levels of IFN-gamma; IMTG scores were predicted by HS severity, ascertained at US; HS severity was predicted by visceral adipose tissue, assessed by US, but the latter was not instrumental to IMTG. DISCUSSION AND CONCLUSION This study has added some pieces of observation about the cytokine network regulating the interplay between IMTG and obesity in obese patients with HS.
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Affiliation(s)
- Giovanni Tarantino
- Department of Clinical Medicine and Surgery, "Federico II" University Medical School of Naples, Naples, Italy.
| | - Susan Costantini
- Oncology Research Center of Mercogliano (CROM), Istituto Nazionale Tumori-IRCSS-Fondazione G. Pascale, Naples, Italy
| | - Vincenzo Citro
- Department of General Medicine, "Umberto I" Hospital, Nocera Inferiore, SA, Italy
| | - Paolo Conforti
- "Federico II" University Medical School of Naples, Naples, Italy
| | - Francesca Capone
- Oncology Research Center of Mercogliano (CROM), Istituto Nazionale Tumori-IRCSS-Fondazione G. Pascale, Naples, Italy
| | - Angela Sorice
- Oncology Research Center of Mercogliano (CROM), Istituto Nazionale Tumori-IRCSS-Fondazione G. Pascale, Naples, Italy
| | - Domenico Capone
- Integrated Care Department of Public Health and Drug-Use, Section of Medical Pharmacology and Toxicology, "Federico II" University, Naples, Italy
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Lei P, Jiao J, Li H, Wang P, Duan Q, Liu J, Zhou S, Wei Q, Wang X. NAFLD evaluation: Which is more appropriate, multislice computed tomography or ultrasound real-time shear wave elastography? JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY 2019; 27:871-883. [PMID: 31256111 DOI: 10.3233/xst-190502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
OBJECTIVE This study aims to assess the value of ultrasound real-time shear wave elastography (US-SWE) for evaluation of nonalcoholic fatty liver disease (NAFLD) in a rabbit model compared with multislice computed tomography (MSCT). MATERIAL AND METHODS Twenty-six rabbits were fed with high-fat, high-cholesterol diet and six rabbits were fed with a standard diet. All rabbits were performed with MSCT and US-SWE at various time points to measure changes in liver parenchyma. The diagnostic efficiency of US-SWE was analyzed using receiver operating characteristics (ROC) curves compared with MSCT based on the liver pathology. RESULTS The statistically significant differences in the areas under the ROC curves between using MSCT and US-SWE modalities were detected to discriminate between normal vs. NAFLD or higher severity pathology. Similarly, for normal or NAFLD vs. borderline or NASH livers, statistically significant differences between using US-SWE and MSCT modalities were also detected for nonalcoholic steatohepatitis (NASH) vs. lower severity pathology. CONCLUSIONS MSCT, but not US-SWE, had a better ability to differentiate normal or NAFLD livers from higher severity NAFLD livers. However, the diagnostic efficiency of US-SWE was superior to that of MSCT for differentiating NASH from normal or lower severity NAFLD.
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Affiliation(s)
- Pinggui Lei
- Department of Radiology, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jun Jiao
- Department of Radiology, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Hong Li
- Biomedical and Information Engineering School, Northeastern University, Shenyang, China
| | - Pingxian Wang
- Department of Medical Insurance, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Qinghong Duan
- Department of Radiology, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Jing Liu
- Department of Radiology, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Shi Zhou
- Department of Radiology, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Qian Wei
- Department of Electrical and Computer Engineering, College of Engineering, University of Texas, El Paso, TX, USA
| | - Xiaolin Wang
- Department of Radiology, the Affiliated Hospital of Guizhou Medical University, Guiyang, China
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94
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Cantero I, Elorz M, Abete I, Marin BA, Herrero JI, Monreal JI, Benito A, Quiroga J, Martínez A, Huarte MP, Uriz-Otano JI, Tur JA, Kearney J, Martinez JA, Zulet MA. Ultrasound/Elastography techniques, lipidomic and blood markers compared to Magnetic Resonance Imaging in non-alcoholic fatty liver disease adults. Int J Med Sci 2019; 16:75-83. [PMID: 30662331 PMCID: PMC6332481 DOI: 10.7150/ijms.28044] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 10/18/2018] [Indexed: 12/24/2022] Open
Abstract
INTRODUCTION Non-alcoholic fatty liver disease (NAFLD) may progress to steatohepatitis, cirrhosis and complicated hepatocellular carcinoma with defined differential symptoms and manifestations. OBJECTIVE To evaluate the fatty liver status by several validated approaches and to compare imaging techniques, lipidomic and routine blood markers with magnetic resonance imaging in adults subjects with non-alcoholic fatty liver disease. MATERIALS AND METHODS A total of 127 overweight/obese with NAFLD, were parallelly assessed by Magnetic Resonance Imaging (MRI), ultrasonography, transient elastography and a validated metabolomic designed test to diagnose NAFLD in this cross-sectional study. Body composition (DXA), hepatic related biochemical measurements as well as the Fatty Liver Index (FLI) were evaluated. This study was registered as FLiO: Fatty Liver in Obesity study; NCT03183193. RESULTS The subjects with more severe liver disease were found to have worse metabolic parameters. Positive associations between MRI with inflammatory and insulin biomarkers were found. A linear regression model including ALT, RBP4 and HOMA-IR was able to explain 40.9% of the variability in fat content by MRI. In ROC analyses a combination panel formed of ALT, HOMA-IR and RBP4 followed by ultrasonography, ALT and metabolomic test showed the major predictive ability (77.3%, 74.6%, 74.3% and 71.1%, respectively) for liver fat content. CONCLUSIONS A panel combination including routine blood markers linked to insulin resistance showed highest associations with MRI considered as a gold standard for determining liver fat content. This combination of tests can facilitate the diagnosis of early stages of non-alcoholic liver disease thereby avoiding other invasive and expensive methods.
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Affiliation(s)
- Irene Cantero
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Mariana Elorz
- Department of Radiology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Itziar Abete
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition. Instituto de Salud Carlos III. Madrid, Spain
| | - Bertha Araceli Marin
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain
| | - Jose Ignacio Herrero
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Liver Unit, Clinica Universidad de Navarra, Pamplona, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Jose Ignacio Monreal
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Clinical Chemistry Department, Clínica Universidad de Navarra, Pamplona, Spain
| | - Alberto Benito
- Department of Radiology, Clínica Universidad de Navarra, Pamplona, Spain
| | - Jorge Quiroga
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Internal Medicine, Clínica Universidad de Navarra, Pamplona, Navarra, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Spain
| | - Ana Martínez
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Mª Pilar Huarte
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Juan Isidro Uriz-Otano
- Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,Department of Gastroenterology, Complejo Hospitalario de Navarra, Pamplona, Spain
| | - Josep Antoni Tur
- CIBERobn, Physiopathology of Obesity and Nutrition. Instituto de Salud Carlos III. Madrid, Spain.,Research Group on Community Nutrition and Oxidative Stress. University of Balearic Islands. Palma de Mallorca. Spain
| | - John Kearney
- School of Biological Sciences, Dublin Institute of Technology, Dublin, Republic of Ireland
| | - J Alfredo Martinez
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition. Instituto de Salud Carlos III. Madrid, Spain.,Navarra Institute for Health Research (IdiSNA), Pamplona, Spain.,IMDEA FOOD. Madrid
| | - M Angeles Zulet
- Department of Nutrition, Food Science and Physiology. Centre for Nutrition Research. School of Pharmacy and Nutrition, University of Navarra, Pamplona, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition. Instituto de Salud Carlos III. Madrid, Spain.,Navarra Institute for Health Research (IdiSNA), Pamplona, Spain
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95
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Tajima R, Kimura T, Enomoto A, Saito A, Kobayashi S, Masuda K, Iida K. No association between fruits or vegetables and non-alcoholic fatty liver disease in middle-aged men and women. Nutrition 2018; 61:119-124. [PMID: 30710884 DOI: 10.1016/j.nut.2018.10.016] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 08/27/2018] [Accepted: 10/14/2018] [Indexed: 01/04/2023]
Abstract
OBJECTIVE It has been hypothesized that fruit and vegetable intake is inversely associated with non-alcoholic fatty liver (NAFLD). However, some studies have speculated that fruit intake might be positively associated with NAFLD owing to the fructose content of the fruit. This might cause consumers to hesitate consuming fruit. The aim of this study was to assess the association between fruit and vegetable consumption and NAFLD. METHODS This was a cross-sectional study of 977 men and 1467 women, 40 to 69 y of age without current liver disease other than NAFLD and who did not report excess alcohol intake (i.e., ≥30 g/d in men and ≥20 g/d in women). Dietary intake was assessed using a validated diet history questionnaire. NAFLD was diagnosed from abdominal ultrasonography results. The association between quartiles of fruit or vegetable consumption and NAFLD prevalence was assessed using logistic regression analysis, with lowest category as reference. RESULTS The prevalence of NAFLD was 34.9% in men and 11.7% in women. Adjusted for age and lifestyle factors, fruit intake was inversely associated with NAFLD in both sexes. However, these associations disappeared after further adjustment for body mass index. Consumption of total vegetables was not associated with NAFLD. In women, a linear inverse association was demonstrated between green and yellow vegetable intake and NAFLD in the final model (Ptrend = 0.04), but odds ratios for any intake category did not reach significance. CONCLUSIONS No obesity-independent association was found between fruit or vegetable intake and NAFLD. According to the findings of this study, Japanese do not need to restrict fruit consumption to limit fructose intake as a means of preventing NAFLD.
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Affiliation(s)
- Ryoko Tajima
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo, Japan; Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Takeshi Kimura
- Center for Preventive Medicine, St. Luke's International University, Tokyo, Japan
| | - Ayaka Enomoto
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo, Japan
| | - Aki Saito
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo, Japan
| | - Satomi Kobayashi
- Department of Social and Preventive Epidemiology, School of Public Health, The University of Tokyo, Tokyo, Japan
| | - Katsunori Masuda
- Center for Preventive Medicine, St. Luke's International University, Tokyo, Japan
| | - Kaoruko Iida
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo, Japan; The Institute for Human Life Innovation, Ochanomizu University, Tokyo, Japan.
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96
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Erdem Toslak I, Lim-Dunham JE, Joyce C, Marbella ME. A Practical Approach to Quantitative Grayscale Ultrasound Analysis of Hepatic Steatosis in Pediatric Patients Using a Picture Archiving and Communication System-Based Tool. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2018; 37:2395-2403. [PMID: 29575029 DOI: 10.1002/jum.14598] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/06/2018] [Accepted: 01/09/2018] [Indexed: 06/08/2023]
Abstract
OBJECTIVES To evaluate the efficacy of a picture archiving and communication system (PACS)-based ultrasound (US) quantification technique for diagnosis of hepatic steatosis in a pediatric population. METHODS Abdominal US images of 49 pediatric patients (≤18 years) with histopathologically proven diagnoses of hepatic steatosis (n = 17), nonsteatotic liver disease (n = 19), and a normal liver (n = 13) were retrospectively reviewed. Patient demographics, the fibrosis stage, and the steatosis grade were obtained from the database. Quantitative grayscale measurements of the echo intensity level of the liver and kidneys were performed on the US images using the PACS measuring tool. The hepatorenal ratio was obtained by dividing mean liver by mean kidney values. The heterogeneity index for the liver was calculated by dividing the liver standard deviation by mean liver values. Hepatorenal ratio and heterogeneity index values of the 3 groups were correlated with pathologic results and compared by a 1-way analysis of variance. A receiver operating characteristic curve analysis was performed, and cutoff values were determined. RESULTS The hepatorenal ratio of the hepatic steatosis group was significantly greater than those of the control and nonsteatotic liver disease groups (P < .001). The heterogeneity index of the hepatic steatosis group was significantly greater than that of the control group (P = .046). For a hepatorenal ratio cutoff value of 1.5, 88.2% sensitivity, 91.4% specificity, 88.3% positive predictive value, and 94.1% negative predictive value were obtained for predicting hepatic steatosis. CONCLUSIONS PACS-based quantitative grayscale US quantification is a safe, accurate, and easily applicable objective method for the diagnosis of hepatic steatosis in children. A hepatorenal ratio of greater than 1.5 can be used as a conservative parameter, permitting increased confidence in discriminating hepatic steatosis from other conditions.
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Affiliation(s)
- Iclal Erdem Toslak
- Department of Radiology, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
| | - Jennifer E Lim-Dunham
- Department of Radiology, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
| | - Cara Joyce
- Clinical Research Office, Loyola University Chicago Health Sciences Division, Loyola University Medical Center, Maywood, Illinois, USA
| | - Marko E Marbella
- Department of Radiology, Loyola University Chicago Stritch School of Medicine, Maywood, Illinois, USA
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97
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Changes in Plasma Acylcarnitine and Lysophosphatidylcholine Levels Following a High-Fructose Diet: A Targeted Metabolomics Study in Healthy Women. Nutrients 2018; 10:nu10091254. [PMID: 30200659 PMCID: PMC6165514 DOI: 10.3390/nu10091254] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 08/20/2018] [Accepted: 08/30/2018] [Indexed: 12/15/2022] Open
Abstract
Background: The consumption of high amounts of fructose is associated with metabolic diseases. However, the underlying mechanisms are largely unknown. Objective: To determine the effects of high fructose intake on plasma metabolomics. Study design: We enrolled 12 healthy volunteers (six lean and six obese women, age 24–35 years) in a crossover intervention study. All participants carried out three diets: (1) low fructose (<10 g/day); (2) high fructose (100 g/day) from natural food sources (fruit); and (3) high fructose (100 g/day) from high fructose syrup (HFS). Outcome measures: The primary outcome was changes in plasma metabolites measured by targeted metabolomics. Results: High compared to low fructose diets caused a marked metabolite class separation, especially because of changes in acylcarnitine and lysophosphatidylcholine levels. Both high fructose diets resulted in a decrease in mean acylcarnitine levels in all subjects, and an increase in mean lysophosphatidylcholine and diacyl-phosphatidylcholine levels in obese individuals. Medium chain acylcarnitines were negatively correlated with serum levels of liver enzymes and with the fatty liver index. Discussion: The metabolic shifts induced by high fructose consumption suggest an inhibition of mitochondrial β-oxidation and an increase in lipid peroxidation. The effects tended to be more pronounced following the HFS than the fruit diet.
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98
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Transfer learning with deep convolutional neural network for liver steatosis assessment in ultrasound images. Int J Comput Assist Radiol Surg 2018; 13:1895-1903. [PMID: 30094778 PMCID: PMC6223753 DOI: 10.1007/s11548-018-1843-2] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 07/31/2018] [Indexed: 02/06/2023]
Abstract
PURPOSE The nonalcoholic fatty liver disease is the most common liver abnormality. Up to date, liver biopsy is the reference standard for direct liver steatosis quantification in hepatic tissue samples. In this paper we propose a neural network-based approach for nonalcoholic fatty liver disease assessment in ultrasound. METHODS We used the Inception-ResNet-v2 deep convolutional neural network pre-trained on the ImageNet dataset to extract high-level features in liver B-mode ultrasound image sequences. The steatosis level of each liver was graded by wedge biopsy. The proposed approach was compared with the hepatorenal index technique and the gray-level co-occurrence matrix algorithm. After the feature extraction, we applied the support vector machine algorithm to classify images containing fatty liver. Based on liver biopsy, the fatty liver was defined to have more than 5% of hepatocytes with steatosis. Next, we used the features and the Lasso regression method to assess the steatosis level. RESULTS The area under the receiver operating characteristics curve obtained using the proposed approach was equal to 0.977, being higher than the one obtained with the hepatorenal index method, 0.959, and much higher than in the case of the gray-level co-occurrence matrix algorithm, 0.893. For regression the Spearman correlation coefficients between the steatosis level and the proposed approach, the hepatorenal index and the gray-level co-occurrence matrix algorithm were equal to 0.78, 0.80 and 0.39, respectively. CONCLUSIONS The proposed approach may help the sonographers automatically diagnose the amount of fat in the liver. The presented approach is efficient and in comparison with other methods does not require the sonographers to select the region of interest.
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99
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Zelber-Sagi S, Ivancovsky-Wajcman D, Fliss Isakov N, Webb M, Orenstein D, Shibolet O, Kariv R. High red and processed meat consumption is associated with non-alcoholic fatty liver disease and insulin resistance. J Hepatol 2018; 68:1239-1246. [PMID: 29571924 DOI: 10.1016/j.jhep.2018.01.015] [Citation(s) in RCA: 187] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 01/17/2018] [Accepted: 01/17/2018] [Indexed: 01/01/2023]
Abstract
BACKGROUND & AIMS High red and processed meat consumption is related to type 2 diabetes. In addition, cooking meat at high temperatures for a long duration forms heterocyclic amines (HCAs), which are related to oxidative stress. However, the association between meat consumption and non-alcoholic fatty liver disease (NAFLD) is yet to be thoroughly tested. Therefore, we aimed to test the association of meat type and cooking method with NAFLD and insulin resistance (IR). METHODS This was a cross-sectional study in individuals who were 40-70 years old and underwent screening colonoscopy between 2013 and 2015 in a single center in Israel. NAFLD and IR were evaluated by ultrasonography and homeostasis model assessment. Meat type and cooking method were measured by a food frequency questionnaire (FFQ) and a detailed meat questionnaire. Unhealthy cooking methods were considered as frying and grilling to a level of well done and very well done. Dietary HCA intake was calculated. RESULTS A total of 789 individuals had a valid FFQ and 357 had a valid meat questionnaire. High consumption of total meat (portions/day above the median) (odds ratio [OR] 1.49; 95% CI 1.05-2.13; p = 0.028; OR 1.63; 1.12-2.37; p = 0.011), red and/or processed meat (OR1.47; 95% CI 1.04-2.09; p = 0.031; OR1.55; 1.07-2.23; p = 0.020) was independently associated with higher odds of NAFLD and IR, respectively, when adjusted for: body mass index, physical activity, smoking, alcohol, energy, saturated fat and cholesterol intake. High intake of meat cooked using unhealthy methods (OR1.92; 95% CI 1.12-3.30; p = 0.018) and HCAs (OR2.22; 95% CI 1.28-3.86; p = 0.005) were independently associated with higher odds of IR. CONCLUSION High consumption of red and/or processed meat is associated with both NAFLD and IR. High HCA intake is associated with IR. If confirmed in prospective studies, limiting the consumption of unhealthy meat types and improving preparation methods may be considered as part of NAFLD lifestyle treatment. LAY SUMMARY High red and processed meat consumption is related to several diseases. In addition, cooking meat at high temperatures for a long duration forms heterocyclic amines, which have harmful health effects. Non-alcoholic fatty liver disease is a significant public health burden and its formation is strongly related to insulin resistance. In this study, both were found to be more frequent in people who consume relatively high quantities of red and processed meat. In addition, a high intake of heterocyclic amines was associated with insulin resistance.
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Affiliation(s)
- Shira Zelber-Sagi
- Department of Gastroenterology, Tel Aviv Medical Center, 6423906 Tel Aviv, Israel; School of Public Health, University of Haifa, 3498838 Haifa, Israel.
| | | | - Naomi Fliss Isakov
- Department of Gastroenterology, Tel Aviv Medical Center, 6423906 Tel Aviv, Israel
| | - Muriel Webb
- Department of Gastroenterology, Tel Aviv Medical Center, 6423906 Tel Aviv, Israel; The Sackler Faculty of Medicine, Tel Aviv University, 6997801 Tel Aviv, Israel
| | - Dana Orenstein
- School of Public Health, University of Haifa, 3498838 Haifa, Israel
| | - Oren Shibolet
- Department of Gastroenterology, Tel Aviv Medical Center, 6423906 Tel Aviv, Israel; The Sackler Faculty of Medicine, Tel Aviv University, 6997801 Tel Aviv, Israel
| | - Revital Kariv
- Department of Gastroenterology, Tel Aviv Medical Center, 6423906 Tel Aviv, Israel; The Sackler Faculty of Medicine, Tel Aviv University, 6997801 Tel Aviv, Israel
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100
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Siddiqui MS, Harrison SA, Abdelmalek MF, Anstee QM, Bedossa P, Castera L, Dimick‐Santos L, Friedman SL, Greene K, Kleiner DE, Megnien S, Neuschwander‐Tetri BA, Ratziu V, Schabel E, Miller V, Sanyal AJ. Case definitions for inclusion and analysis of endpoints in clinical trials for nonalcoholic steatohepatitis through the lens of regulatory science. Hepatology 2018; 67:2001-2012. [PMID: 29059456 PMCID: PMC5906171 DOI: 10.1002/hep.29607] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 09/28/2017] [Accepted: 10/13/2017] [Indexed: 12/15/2022]
Abstract
Nonalcoholic steatohepatitis (NASH) is an important cause of liver-related morbidity and mortality. There are no approved therapies, and the results of clinical trials have been difficult to compare due to inconsistent definitions of relevant disease parameters in patients with NASH. The natural course of the disease has not been rigorously characterized, particularly with respect to the contributions of underlying obesity, type 2 diabetes, and other comorbidities and the treatments provided for these comorbidities. Efforts to perform analyses of pooled data are limited by heterogeneous case definitions used across studies to define disease states. There remains a major unmet need in the field to develop standardized definitions for populations for interventional trials. Such definitions are expected to impact how endpoints for clinical trials are constructed. The Liver Forum is a multistakeholder effort including US and European regulatory agencies, academic investigators, professional and patient representative organizations, and industry to catalyze therapeutic development for NASH by developing potential solutions to barriers to development. The Case Definitions Working Group was established by The Liver Forum to evaluate the validity of case definitions for populations to be included in clinical trials for NASH from a regulatory science perspective. Based on such analyses, specific recommendations are provided noting the strengths and weaknesses of the case definitions along with knowledge gaps that require additional study. (Hepatology 2018;67:2001-2012).
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Affiliation(s)
| | | | - Manal F. Abdelmalek
- Division of Gastroenterology & HepatologyDuke University School of MedicineDurhamNC
| | - Quentin M. Anstee
- Institute of Cellular MedicineNewcastle UniversityNewcastle Upon TyneUnited Kingdom
| | - Pierre Bedossa
- Department of Pathology, Physiology and ImagingUniversity of Paris DiderotClichyFrance
| | | | - Lara Dimick‐Santos
- Center for Drug Evaluation and Research, US Food and Drug AdministrationSilver SpringsMD
| | - Scott L. Friedman
- Division of Liver Disease, Icahn School of Medicine at Mount SinaiNew YorkNY
| | - Katherine Greene
- Forum for Collaborative ResearchUniversity of California BerkeleyWashingtonDC
| | | | | | | | - Vlad Ratziu
- Department of Hepatology and GastroenterologyHôpital Pitié Salpêtrière et Université Pierre et Marie CurieParisFrance
| | - Elmer Schabel
- Gastroenterology & Hepatology Unit, Bundesinstitut für Arzneimittel und MedizinprodukteBonnGermany
| | - Veronica Miller
- Forum for Collaborative ResearchUniversity of California BerkeleyWashingtonDC
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