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Younossi ZM, Mangla KK, Chandramouli AS, Lazarus JV. Estimating the economic impact of comorbidities in patients with MASH and defining high-cost burden in patients with noncirrhotic MASH. Hepatol Commun 2024; 8:e0488. [PMID: 39037377 PMCID: PMC11265778 DOI: 10.1097/hc9.0000000000000488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 05/21/2024] [Indexed: 07/23/2024] Open
Abstract
BACKGROUND Metabolic dysfunction-associated steatohepatitis (MASH) is associated with high health care costs. This US study investigated the economic burden of MASH, particularly in patients without cirrhosis, and the impact of comorbidities on health care costs. METHODS This retrospective, observational study used data from patients diagnosed with MASH aged ≥18 years from October 2015 to March 2022 (IQVIA Ambulatory electronic medical record-US). Patients were stratified by the absence or presence of cirrhosis. Primary outcomes included baseline characteristics and annualized total health care cost after MASH diagnosis during follow-up. In addition, this study defined high costs for the MASH population and identified patient characteristics associated with increased health care costs among those without cirrhosis. RESULTS Overall, 16,919 patients (14,885 without cirrhosis and 2034 with cirrhosis) were included in the analysis. The prevalence of comorbidities was high in both groups; annual total health care costs were higher in patients with cirrhosis. Patients with a high-cost burden (threshold defined using the United States national estimated annual health care expenditure of $13,555) had a higher prevalence of comorbidities and were prescribed more cardiovascular medications. MASH diagnosis was associated with an increase in cost, largely driven by inpatient costs. In patients without cirrhosis, an increase in cost following MASH diagnosis was associated with the presence and burden of comorbidities and cardiovascular medication utilization. CONCLUSIONS Comorbidities, such as cardiovascular disease and type 2 diabetes, are associated with a higher cost burden and may be aggravated by MASH. Prioritization and active management may benefit patients without cirrhosis with these comorbidities. Clinical care should focus on preventing progression to cirrhosis and managing high-burden comorbidities.
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Affiliation(s)
- Zobair M. Younossi
- The Global NASH Council, Washington, District of Columbia, USA
- Beatty Liver and Obesity Research Program, Inova Health System, Falls Church, Virginia, USA
| | - Kamal Kant Mangla
- Novo Nordisk Service Center India Pvt Ltd, Bangalore, Karnataka, India
| | | | - Jeffrey V. Lazarus
- The Global NASH Council, Washington, District of Columbia, USA
- City University of New York Graduate School of Public Health and Health Policy (CUNY SPH), New York, New York, USA
- Barcelona Institute for Global Health (ISGlobal), Hospital Clínic, University of Barcelona, Barcelona, Spain
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2
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Zou H, Wong RSM, Yan X. Erythropoietin hyporesponsiveness in non-alcoholic fatty liver disease. Clin Exp Pharmacol Physiol 2024; 51:e13869. [PMID: 38725222 DOI: 10.1111/1440-1681.13869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 04/06/2024] [Accepted: 04/18/2024] [Indexed: 06/15/2024]
Abstract
Treatment with erythropoietin (EPO) can correct anaemia in chronic kidney disease (CKD) patients; however, up to 10% exhibit resistance or hyporesponsiveness to EPO. Non-alcoholic fatty liver disease (NAFLD), prevalent liver disease in CKD patients, may limit EPO response because of thrombopoietin deficiency, iron homeostasis disorder and inflammation. Therefore, we hypothesized NAFLD is a risk factor for EPO responsiveness. To test our hypothesis, we evaluated the effect of EPO in healthy rats and rats with NAFLD induced by a high-fat, high-carbohydrate (HFHC) diet. After 12 weeks on the HFHC diet, NAFLD rats showed lower erythroid response to EPO treatment than healthy rats. We, then, determined that the primary cause of EPO hyporesponsiveness could be iron deficiency associated with inflammation, which reduces erythroid cell production. Specifically, the concentrations of hepcidin, ferritin, transferrin and white blood cells in NAFLD rats were 12.8-, 16.4-, 2.51- and 1.40-fold higher than those in healthy rats, respectively. However, erythroid cell types in the bone marrow of NAFLD rats were significantly reduced. In conclusion, our data suggest that NAFLD could be a risk factor for EPO responsiveness, which is attributed to functional iron deficiency associated with inflammation.
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Affiliation(s)
- Huixi Zou
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Raymond S M Wong
- Division of Hematology, Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Xiaoyu Yan
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong
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3
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Adrian T, Hornum M, Knop FK, Christensen KB, Almdal T, Rossing P, Lídaa LÍ, Heinrich NS, Boer VO, Marsman A, Petersen ET, Siebner HR, Feldt-Rasmussen B. Hepatic Fibrosis Evaluated in Patients with Type 2 Diabetes with and without Chronic Kidney Disease. Nephron Clin Pract 2023; 147:673-684. [PMID: 37586348 DOI: 10.1159/000531574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Accepted: 05/01/2023] [Indexed: 08/18/2023] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD), and particularly liver fibrosis, has been suggested as a risk factor of chronic kidney disease (CKD). Given that NAFLD affects every fourth person globally, better insight is needed. Our aim was to investigate the association between hepatic fibrosis and CKD in patients with type 2 diabetes and to compare different methods for diagnosing liver fibrosis in this study population. METHODS Cross-sectional study including patients with type 2 diabetes with CKD stages 3-5 (N = 50) or without CKD (N = 50). CKD was defined as estimated glomerular filtration rate <60 mL/min/1.73 m2 with or without proteinuria. Three methods were used to detect significant liver fibrosis defined as either ≥8 kilopascal measured by transient elastography (FibroScan®), fibrosis-4 (FIB-4) score ≥2.67, or NAFLD fibrosis score (NFS) >0.675. RESULTS Significant liver fibrosis was found in 38% and 28% of the patients with and without CKD, respectively, using at least one of the three methods. Both FIB-4 score and NFS were significantly higher in patients with CKD (p < 0.0009 and p < 0.0001, respectively), although insignificant after adjustments for age, sex, body mass index, and duration of diabetes. In patients without CKD, a significant association between steatosis and fibrosis was observed (p = 0.0007). CONCLUSION Our data do not support any strong independent association between liver fibrosis and established CKD as assessed by FibroScan, FIB-4 score, and NFS, respectively.
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Affiliation(s)
- Therese Adrian
- Department of Nephrology, Rigshospitalet Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Mads Hornum
- Department of Nephrology, Rigshospitalet Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Filip Krag Knop
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Center for Clinical Metabolic Research, Gentofte Hospital, Copenhagen University Hospital, Hellerup, Denmark
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
- Steno Diabetes Center Copenhagen, Herlev, Denmark
| | - Karl Bang Christensen
- Department of Public Health, Section of Biostatistics, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Almdal
- Department of Endocrinology, Rigshospitalet Copenhagen University Hospital, Copenhagen, Denmark
- Department of Immunology and Microbiology, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Peter Rossing
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Steno Diabetes Center Copenhagen, Herlev, Denmark
| | - Lisa Í Lídaa
- Department of Nephrology, Rigshospitalet Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Vincent Oltman Boer
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Amager and Hvidovre, Copenhagen, Denmark
| | - Anouk Marsman
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Amager and Hvidovre, Copenhagen, Denmark
| | - Esben Thade Petersen
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Amager and Hvidovre, Copenhagen, Denmark
- Department of Health Technology, Technical University of Denmark, Lyngby, Denmark
| | - Hartwig Roman Siebner
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Amager and Hvidovre, Copenhagen, Denmark
- Department of Neurology, Copenhagen University Hospital - Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Bo Feldt-Rasmussen
- Department of Nephrology, Rigshospitalet Copenhagen University Hospital, Copenhagen, Denmark
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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4
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Rinaldi L, Giorgione C, Mormone A, Esposito F, Rinaldi M, Berretta M, Marfella R, Romano C. Non-Invasive Measurement of Hepatic Fibrosis by Transient Elastography: A Narrative Review. Viruses 2023; 15:1730. [PMID: 37632072 PMCID: PMC10459581 DOI: 10.3390/v15081730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 08/04/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Transient elastography by FibroScan® (Echosens, Paris, France) is a non-invasive method that can provide a reliable measurement of liver fibrosis through the evaluation of liver stiffness. Despite its limitations and risks, liver biopsy has thus far been the only procedure able to provide data to quantify fibrosis. Scientific evidence and clinical practice have made it possible to use FibroScan® in the diagnostic work-up of several liver diseases to monitor patients' long-term treatment response and for complication prevention. For these reasons, this procedure is widely used in clinical practice and is still being investigated for further applications. The aim of this narrative review is to provide a comprehensive overview of the main applications of transient elastography in the current clinical practice.
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Affiliation(s)
- Luca Rinaldi
- Department of Advanced Medical and Surgical Sciences, “Luigi Vanvitelli” University of Campania, 80131 Naples, Italy; (L.R.); (R.M.)
| | - Chiara Giorgione
- Department of Advanced Medical and Surgical Sciences, “Luigi Vanvitelli” University of Campania, 80131 Naples, Italy; (L.R.); (R.M.)
| | - Andrea Mormone
- Department of Advanced Medical and Surgical Sciences, “Luigi Vanvitelli” University of Campania, 80131 Naples, Italy; (L.R.); (R.M.)
| | - Francesca Esposito
- Department of Advanced Medical and Surgical Sciences, “Luigi Vanvitelli” University of Campania, 80131 Naples, Italy; (L.R.); (R.M.)
| | - Michele Rinaldi
- Department of Neurosciences, Reproductive and Odontostomatological Sciences, “Federico II” University of Naples, 80131 Naples, Italy;
| | - Massimiliano Berretta
- Department of Clinical and Experimental Medicine, University of Messina, 98121 Messina, Italy;
| | - Raffaele Marfella
- Department of Advanced Medical and Surgical Sciences, “Luigi Vanvitelli” University of Campania, 80131 Naples, Italy; (L.R.); (R.M.)
| | - Ciro Romano
- Department of Advanced Medical and Surgical Sciences, “Luigi Vanvitelli” University of Campania, 80131 Naples, Italy; (L.R.); (R.M.)
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Giri S, Dash KA, Varghese J, Afzalpurkar S. The Role of Gastroenterologists in Preoperative Assessment and Management of Prospective Renal Transplantation Candidates. Euroasian J Hepatogastroenterol 2023; 13:18-25. [PMID: 37554975 PMCID: PMC10405807 DOI: 10.5005/jp-journals-10018-1390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 06/26/2023] [Indexed: 08/10/2023] Open
Abstract
Renal transplant is the most common organ transplant worldwide, accounting for 65% of the total number of transplants. End-stage renal disease (ESRD) often has multiple significant comorbidities. Among the gastrointestinal (GI) disorders, peptic ulcer disease (PUD), cholelithiasis, and colon and liver diseases increase the risk of posttransplant morbidity. Potential renal transplantation (RT) candidates need a multidisciplinary assessment of coexisting illnesses, which may affect the perioperative risk and survival after transplantation. Successful outcome of RT depends on careful selection of the recipients by a thorough medical evaluation and screening. This review summarizes the role of gastroenterologists and hepatologists in preoperative assessment and management of renal transplant recipients. How to cite this article Giri S, Dash KA, Varghese J, et al. The Role of Gastroenterologists in Preoperative Assessment and Management of Prospective Renal Transplantation Candidates. Euroasian J Hepato-Gastroenterol 2023;13(1):18-25.
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Affiliation(s)
- Suprabhat Giri
- Department of Gastroenterology, Kalinga Institute of Medical Sciences, Bhubaneswar, Odisha, India
| | - Kumar Avijeet Dash
- Department of Nephrology, Kalinga Institute of Medical Sciences, Bhubaneswar, India
| | - Jijo Varghese
- Department of Gastroenterology, KM Cherian Institute of Medical Sciences, Kallissery, India
| | - Shivaraj Afzalpurkar
- Department of Gastroenterology, Nanjappa Multi-Speciality Hospitals, Davanagere, Karnataka, India
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6
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Jung CY, Ryu GW, Kim HW, Ahn SH, Kim SU, Kim BS. Advanced liver fibrosis measured by transient elastography predicts chronic kidney disease development in individuals with non-alcoholic fatty liver disease. Diabetologia 2022; 65:518-527. [PMID: 34932136 DOI: 10.1007/s00125-021-05627-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 10/05/2021] [Indexed: 12/19/2022]
Abstract
AIMS/HYPOTHESIS Non-alcoholic fatty liver disease (NAFLD) and chronic kidney disease (CKD) are progressive chronic conditions that share important cardiometabolic risk factors and pathogenic mechanisms. We investigated the association between liver fibrosis measured by transient elastography (TE) and the risk of incident CKD in individuals with NAFLD. METHODS A total of 5983 participants with NAFLD (defined as controlled attenuation parameter >222 dB/m) but without CKD who underwent TE between March 2012 and August 2018 were selected. The primary outcome was incident CKD, defined as the occurrence of eGFR <60 ml min-1 [1.73 m]-2 or proteinuria (≥1+ on dipstick test) on two consecutive measurements during follow-up. The secondary outcome was a 25% decline in eGFR measured on two consecutive visits. RESULTS The mean age was 51.8 years and 3756 (62.8%) participants were male. During 17,801 person-years of follow-up (mean follow-up of 3.0 years), 62 participants (1.0%) developed incident CKD. When stratified into TE-defined fibrosis stages (F0-F4), multivariable Cox models revealed that risk of incident CKD was 5.40-fold (95% CI 2.46, 11.84; p < 0.001) higher in the F3/F4 group (≥9.5 kPa) than in the F0 group (<5.5 kPa). During 17,577 person-years of follow-up (mean follow-up of 3.0 years), 201 participants (3.4%) experienced the secondary outcome, for which the F3/F4 group had a 3.22-fold higher risk (95% CI 1.96, 5.28; p < 0.001) than the F0 group. CONCLUSIONS/INTERPRETATION In this large cohort of individuals with NAFLD but without baseline CKD, advanced liver fibrosis measured by TE was significantly associated with a higher risk of incident CKD.
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Affiliation(s)
- Chan-Young Jung
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Geun Woo Ryu
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyung Woo Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sang Hoon Ahn
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University, College of Medicine, Seoul, Republic of Korea
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea
| | - Seung Up Kim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University, College of Medicine, Seoul, Republic of Korea.
- Yonsei Liver Center, Severance Hospital, Seoul, Republic of Korea.
| | - Beom Seok Kim
- Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Republic of Korea.
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7
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Tao Z, Li Y, Cheng B, Zhou T, Gao Y. Influence of Nonalcoholic Fatty Liver Disease on the Occurrence and Severity of Chronic Kidney Disease. J Clin Transl Hepatol 2022; 10:164-173. [PMID: 35233386 PMCID: PMC8845149 DOI: 10.14218/jcth.2021.00171] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/10/2021] [Accepted: 08/25/2021] [Indexed: 12/04/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is reported to affect 20-30% of adults and is accompanied by various metabolic comorbidities, where the economic and clinical burden of NAFLD is attributed to the progression of liver disease as well as the presence of extrahepatic diseases. Chronic kidney disease (CKD), which has a high incidence rate, high morbidity and mortality rates, and high medical costs, has been linked to NAFLD. CKD is associated with some metabolism-related risk factors that overlap with metabolic comorbidities of NAFLD. Therefore, to investigate the potential factors that influence CKD occurrence, the association between NAFLD and CKD should be clarified. Some studies have confirmed that NAFLD influences the occurrence and severity of CKD, whereas some studies have indicated that there is no correlation. In this review, the results of a few studies have been discussed, the potential risk factors for CKD in NAFLD are explored, and the respective biological mechanisms are elaborated to help clinicians identify CKD in patients much earlier than it is diagnosed now and thus help in reducing the incidence of liver and kidney transplants.
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Affiliation(s)
| | | | | | | | - Yanjing Gao
- Correspondence to: Yanjing Gao, Department of Gastroenterology, Qilu Hospital of Shandong University, 107 Wenhua Xi Road, Jinan, Shandong 250012, China. ORCID: https://orcid.org/0000-0001-8153-3754. Tel: +86-18560086087, E-mail:
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8
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The Accuracy of Serum Biomarkers in the Diagnosis of Steatosis, Fibrosis, and Inflammation in Patients with Nonalcoholic Fatty Liver Disease in Comparison to a Liver Biopsy. Medicina (B Aires) 2022; 58:medicina58020252. [PMID: 35208576 PMCID: PMC8880154 DOI: 10.3390/medicina58020252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 01/30/2022] [Accepted: 02/02/2022] [Indexed: 12/02/2022] Open
Abstract
Background and Objective: This study was conducted to evaluate the diagnostic performance of various biomarkers for steatosis, fibrosis, and inflammation in comparison to a liver biopsy (LB) in patients with nonalcoholic fatty liver disease (NAFLD). Materials and Methods: This was a cross-sectional study that included 135 patients with biopsy-proven NAFLD. Fatty liver index (FLI), hepatic steatosis index (HSI), cell death markers (CK-18 M30 and CK-18 M65), FIB-4 index, NAFLD fibrosis score (NFS), BARD, and AST to platelet ratio index (APRI) were calculated and analysed. Results: FLI, HSI scores, and the cell death biomarkers showed poor diagnostic accuracy for steatosis detection and quantification, with an area under the curve (AUC) of <0.70. The cell death biomarkers likewise did not perform well for the detection of nonalcoholic steatohepatitis (NASH) (AUC < 0.7). As for the fibrosis staging, only APRI and the cell death biomarkers had moderate accuracy (AUC > 0.7) for advanced fibrosis, whereas FIB-4, BARD, and NFS scores demonstrated poor performance (AUC < 0.70). However, a combination of FIB-4 and NFS with the cell death biomarkers had moderate accuracy for advanced (≥F3) fibrosis detection, with an AUC of >0.70. Conclusions: In this first study on Croatian patients with NAFLD, serum biomarkers demonstrated poor diagnostic performance for the noninvasive diagnosis of liver steatosis and NASH. APRI and the cell death biomarkers had only moderate accuracy for diagnosing advanced fibrosis, as did the combination of FIB-4 and NFS with the cell death biomarkers. Further studies regarding serum biomarkers for all NAFLD stages are needed.
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9
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Syed T, Chadha N, Kumar D, Gupta G, Sterling RK. Non-Invasive Assessment of Liver Fibrosis and Steatosis in End-Stage Renal Disease Patients Undergoing Renal Transplant Evaluation. Gastroenterology Res 2021; 14:244-251. [PMID: 34527094 PMCID: PMC8425797 DOI: 10.14740/gr1445] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/02/2021] [Indexed: 12/19/2022] Open
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) has an increased prevalence in end-stage renal disease (ESRD) due to similar risk factors. The aim of this study was to assess non-invasive testing including transient elastography (TE) for liver stiffness (LS), controlled attenuated parameter (CAP) for steatosis, Fibrosis-4 (FIB-4) score, aspartate aminotransferase (AST) to platelet ratio index (APRI) and NAFLD fibrosis score (NFS), for evaluation of NAFLD along with advanced fibrosis (AF) in patients with ESRD undergoing renal transplant evaluation. Methods Data were retrospectively collected within 12 weeks of TE. Primary outcomes were AF, defined by LS ≥ 9 kPa compared to APRI > 1.5, FIB-4 > 2.67, and NFS of 0.675, and ≥ 5% steatosis by CAP ≥ 263 dB/m compared to liver histology when available. Results A total of 171 patients were evaluated: mean age 56, 65% male, 36% obese, 47% had diabetes, 96% hypertension, and 56% dyslipidemia. Mean LS was 6.5 kPa with 21% having AF. Mean CAP was 232 dB/m, with 25% having steatosis. Those with AF were older with higher NFS. Those with steatosis were obese and had diabetes without higher LS or fibrosis scores. Only NFS was associated with LS ≥ 9 kPa. In those with liver histology, AF was associated with LS ≥ 9 kPa but not with APRI, FIB-4, or NFS. Conclusions Despite normal liver enzymes, non-invasive assessment via TE in ESRD patients exhibited high prevalence of AF and steatosis not detected by APRI or FIB-4 scores. This high prevalence was secondary to the common risk factors such as obesity and diabetes, among patients with NAFLD and ESRD.
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Affiliation(s)
- Taseen Syed
- Department of Gastroenterology, Nutrition and Hepatology, Virginia Commonwealth University, Richmond, VA, USA.,Hume-Lee Transplant Center, Virginia Commonwealth University, Richmond, VA, USA
| | - Nikita Chadha
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Dhiren Kumar
- Hume-Lee Transplant Center, Virginia Commonwealth University, Richmond, VA, USA.,Department of Nephrology, Virginia Commonwealth University, Richmond, VA, USA
| | - Gaurav Gupta
- Hume-Lee Transplant Center, Virginia Commonwealth University, Richmond, VA, USA.,Department of Nephrology, Virginia Commonwealth University, Richmond, VA, USA
| | - Richard K Sterling
- Department of Gastroenterology, Nutrition and Hepatology, Virginia Commonwealth University, Richmond, VA, USA.,Hume-Lee Transplant Center, Virginia Commonwealth University, Richmond, VA, USA.,Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
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10
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Adrian T, Sørensen IMH, Knop FK, Bro S, Ballegaard ELF, Nordestgaard BG, Fuchs A, Kofoed KF, Kühl JT, Sigvardsen PE, Hornum M, Feldt-Rasmussen B. Prevalence of non-alcoholic fatty liver disease in patients with chronic kidney disease: a case-control study. Nephrol Dial Transplant 2021; 37:1927-1934. [PMID: 34505899 DOI: 10.1093/ndt/gfab266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is the most common liver disease and represents a wide spectrum ranging from mild steatosis over non-alcoholic steatohepatitis with and without fibrosis to overt cirrhosis. Patients with NAFLD have a high risk of developing cardiovascular disease and chronic kidney disease (CKD). So far, there is scarce evidence of the prevalence of NAFLD among patients with CKD. We investigated the prevalence of moderate-to-severe hepatic steatosis graded according to the definition of NAFLD in a cohort of patients with CKD. METHODS Hepatic liver fat content was evaluated by computed tomography (CT) scan in 291 patients from the Copenhagen Chronic Kidney Disease Cohort Study and in 866 age- and sex-matched individuals with normal kidney function from the Copenhagen General Population Study. Liver attenuation density <48 Hounsfield units was used as cut-off value for moderate-to-severe hepatic steatosis. RESULTS The prevalence of moderate-to-severe hepatic steatosis was 7.9% and 10.7% (P = 0.177) among patients with CKD and controls, respectively. No association between liver fat content and CKD stage was found. In the pooled data set from both cohorts, adjusted odds ratios for moderate-to-severe hepatic steatosis among persons with diabetes, overweight and obesity amounted to 3.1 (95% confidence interval (CI) 1.6-5.9), 14.8 (95% CI 4.6-47.9) and 42.0 (95% CI 12.9-136.6), respectively. CONCLUSIONS In a cohort of 291 patients with CKD, kidney function was not associated with the prevalence of moderate-to-severe hepatic steatosis as assessed by CT scan.
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Affiliation(s)
- Therese Adrian
- Department of Nephrology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Ida M H Sørensen
- Department of Nephrology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Filip K Knop
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.,Center for Clinical Metabolic Research, Copenhagen University Hospital-Gentofte Hospital, Hellerup, Denmark.,Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.,Steno Diabetes Center Copenhagen, Gentofte, Denmark
| | - Susanne Bro
- Department of Nephrology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Ellen L F Ballegaard
- Department of Nephrology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Børge G Nordestgaard
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.,Department of Clinical Biochemistry, and the Copenhagen General Population Study, Copenhagen University Hospital-Herlev and Gentofte Hospital, Herlev, Denmark.,The Copenhagen City Heart Study, Copenhagen University Hospital-Frederiksberg Hospital, Frederiksberg, Denmark
| | - Andreas Fuchs
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.,Department of Cardiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Radiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Klaus F Kofoed
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.,Department of Cardiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Radiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Jørgen T Kühl
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.,Department of Cardiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Radiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Per E Sigvardsen
- Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.,Department of Cardiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Radiology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark
| | - Mads Hornum
- Department of Nephrology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
| | - Bo Feldt-Rasmussen
- Department of Nephrology, Copenhagen University Hospital-Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark
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Mikolasevic I, Rahelic D, Turk-Wensween T, Ruzic A, Domislovic V, Hauser G, Matic T, Radic-Kristo D, Krznaric Z, Radic M, Filipec Kanizaj T, Martinovic M, Jerkic H, Medjimurec M, Targher G. Significant liver fibrosis, as assessed by fibroscan, is independently associated with chronic vascular complications of type 2 diabetes: A multicenter study. Diabetes Res Clin Pract 2021; 177:108884. [PMID: 34082054 DOI: 10.1016/j.diabres.2021.108884] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/10/2021] [Accepted: 05/28/2021] [Indexed: 02/07/2023]
Abstract
AIMS The aim of this study was to investigate whether controlled attenuation parameter (CAP) and liver stiffness measurement (LSM), as assessed by vibration-controlled transient elastography (VCTE), are associated with chronic vascular complications of diabetes mellitus type 2 (T2DM). METHODS We studied 442 outpatients with established T2DM, and who underwent VCTE and extensive assessment of chronic vascular complications of diabetes. RESULTS A quarter of analyzed patients had a previous history of myocardial infarction and/or ischemic stroke, and about half of them had at least one microvascular complication (chronic kidney disease (CKD), retinopathy or polyneuropathy). The prevalence of liver steatosis (i.e., CAP ≥ 238 dB/m) and significant liver fibrosis (i.e., LSM ≥ 7.0/6.2 kPa) was 84.2% and 46.6%, respectively. Significant liver fibrosis was associated with an increased likelihood of having myocardial infarction (adjusted-odds ratio 6.61, 95%CI 1.66-37.4), peripheral polyneuropathy (adjusted-OR 4.55, 95%CI 1.25-16.6), CKD (adjusted-OR 4.54, 95%CI 1.24-16.6) or retinopathy (adjusted-OR 1.81, 95%CI 1.62-1.97), independently of cardiometabolic risk factors, diabetes-related variables, and other potential confounders. Liver steatosis was not independently associated with any macro-/microvascular diabetic complications. CONCLUSIONS Significant liver fibrosis is strongly associated with the presence of macro-/microvascular complications in patients with T2DM. These results offer a new perspective on the follow-up of people with T2DM.
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Affiliation(s)
- I Mikolasevic
- Department of Gastroenterology, University Hospital Center Rijeka, Rijeka, Croatia; Department of Gastroenterology, University Hospital Merkur, Zagreb, Croatia; Faculty of Medicine, Rijeka, Croatia.
| | - D Rahelic
- Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, Zagreb, Croatia; University of Zagreb Faculty of Medicine, Zagreb, Croatia; University of Osijek Faculty of Medicine, Osijek, Croatia
| | - T Turk-Wensween
- Faculty of Medicine, Rijeka, Croatia; Center for Diabetes, Endocrinology and Cardiometabolism, Thallassotherapia, Opatija, Croatia
| | - A Ruzic
- Faculty of Medicine, Rijeka, Croatia; Clinic for Cardiology, University Hospital Center Rijeka, Rijeka, Croatia
| | - V Domislovic
- Department for Gastroenterology and Hepatology, University Hospital Center Zagreb, Zagreb, Croatia
| | - G Hauser
- Department of Gastroenterology, University Hospital Center Rijeka, Rijeka, Croatia; Faculty of Medicine, Rijeka, Croatia; Faculty of Health Studies, Rijeka, Croatia
| | - T Matic
- Vuk Vrhovac University Clinic for Diabetes, Endocrinology and Metabolic Diseases, Merkur University Hospital, Zagreb, Croatia
| | - D Radic-Kristo
- University of Zagreb Faculty of Medicine, Zagreb, Croatia; Department of Hematology, University Hospital Merkur, Zagreb, Croatia
| | - Z Krznaric
- University of Zagreb Faculty of Medicine, Zagreb, Croatia; Department for Gastroenterology and Hepatology, University Hospital Center Zagreb, Zagreb, Croatia
| | - M Radic
- University of Zagreb Faculty of Medicine, Zagreb, Croatia
| | - T Filipec Kanizaj
- Department of Gastroenterology, University Hospital Merkur, Zagreb, Croatia; University of Zagreb Faculty of Medicine, Zagreb, Croatia
| | - M Martinovic
- Department of Hematology, University Hospital Merkur, Zagreb, Croatia
| | - H Jerkic
- Department of Cardiology, University Hospital Merkur, Zagreb, Croatia
| | | | - G Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Verona, Italy
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Non-invasive fibrosis assessments of non-alcoholic fatty liver disease associated with low estimated glomerular filtration rate among CKD patients: the Fukuoka Kidney disease Registry Study. Clin Exp Nephrol 2021; 25:822-834. [PMID: 33856608 DOI: 10.1007/s10157-020-02018-z] [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: 03/25/2020] [Accepted: 12/28/2020] [Indexed: 10/21/2022]
Abstract
BACKGROUND A growing body of evidence has shown that non-alcoholic fatty liver disease (NAFLD) is associated with chronic kidney disease (CKD). Non-invasive fibrosis assessments of NAFLD such as Fibrosis-4 (FIB-4) index and NAFLD fibrosis score (NFS) have been developed to substitute liver biopsy. Little is known about the association between FIB-4 index or NFS and the components of CKD. METHODS In the present cross-sectional study, we assessed of 3640 Japanese CKD patients. We examined the association between FIB-4index or NFS and the odds of having low estimated glomerular filtration rate (eGFR) defined as eGFR < 60 mL/min/1.73 m2 or albuminuria defined as urinary albumin-to-creatinine ratio (UACR) ≥ 30 mg/g. Patients were divided into quartiles according to their baseline FIB-4 index and NFS levels. Linear and logistic regression analysis were conducted, with adjustment for potential confounding factors. RESULTS FIB-4 index and NFS were negatively associated with eGFR, but not UACR, after adjustment for potential confounding factors. Both FIB-4 index and NFS were significantly associated with low eGFR after adjustment for potential confounding factors. Meanwhile, in the multivariable-adjusted model, no associations were found between FIB-4 index or NFS and albuminuria. The addition of FIB-4 index or NFS to the established clinical CKD risk factors improved diagnostic accuracy of prevalence of low eGFR. We also found that there was a significant trend of higher FIB-4 index and NFS with more advanced renal fibrosis using the kidney biopsy data. CONCLUSIONS Higher non-invasive fibrosis assessments of NAFLD were associated with higher odds of decreased eGFR.
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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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Behairy MA, Sherief AF, Hussein HA. Prevalence of non-alcoholic fatty liver disease among patients with non-diabetic chronic kidney disease detected by transient elastography. Int Urol Nephrol 2021; 53:2593-2601. [PMID: 33675475 DOI: 10.1007/s11255-021-02815-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 02/13/2021] [Indexed: 02/08/2023]
Abstract
PURPOSE Non-alcoholic fatty liver disease (NAFLD) shares a close relationship with cardiovascular morbidity and mortality. The purpose of this study is to evaluate the frequency of NAFLD in the patients with non-diabetic chronic kidney disease (CKD). METHODS This cross-sectional study included 80 patients with non-diabetic CKD, of which, 50 patients were on hemodialysis (HD) and 30 patients had CKD stage G3-5 not on dialysis. These patients were randomly selected from Ain Shams University Hospitals, Cairo, Egypt. Patients with diabetes mellitus, obesity, alcohol intake, viral hepatitis, or drug-induced liver steatosis were excluded from this study. Importantly, the controlled attenuation parameter (CAP) (dB/m) of liver steatosis (S0-S3) and liver stiffness/fibrosis measurement (F0-F4) were measured using transient elastography (Fibroscan®). Other evaluations included complete blood count, routine blood chemistry, and C-reactive protein (CRP) titer. RESULTS In total, 45 (56.25%) (30 males, 15 females) out of total 80 studied patients were reported to have NAFLD. There were 29 patients with end-stage renal disease who were on regular HD and 16 patients with pre-dialysis CKD G3-5. The mean CAP values of hepatic steatosis in the patients with CKD on dialysis and patients with pre-dialysis CKD were 265.41 ± 52.73 and 259 ± 44.8 dB/m, respectively. A significant association between the severity of hepatic steatosis degree with decreased glomerular filtration rate and increased CKD stage was observed in this study. The degree of liver stiffness was significantly related to an increased hepatic steatosis grade. A significant positive correlation was found between the degree of NAFLD and serum levels of alanine aminotransferase, aspartate transaminase, total cholesterol, triglycerides, low-density lipoprotein, and CRP titer (P < 0.05). Importantly, NAFLD was significantly associated with an evident history of cardiovascular disease (CVD) among the studied patients. CONCLUSION A high frequency of NAFLD (56%) was observed among the patients with non-diabetic CKD on hemodialysis and patients with pre-dialysis CKD. NAFLD may be associated with an increased liver stiffness grade and CVD among those patients.
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Affiliation(s)
- Maha Abdelmoneim Behairy
- Internal Medicine and Nephrology Department, Faculty of Medicine, Ain Shams University, Abbassyia, Cairo, 11566, Egypt.
| | - Ahmed Fouad Sherief
- Tropical Medicine Department, Faculty of Medicine, Ain Shams University, Abbassyia, Cairo, 11566, Egypt
| | - Hany Aly Hussein
- Internal Medicine Department, Faculty of Medicine, Ain Shams University, Abbassyia, Cairo, 11566, Egypt
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Kiapidou S, Liava C, Kalogirou M, Akriviadis E, Sinakos E. Chronic kidney disease in patients with non-alcoholic fatty liver disease: What the Hepatologist should know? Ann Hepatol 2021; 19:134-144. [PMID: 31606352 DOI: 10.1016/j.aohep.2019.07.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 06/19/2019] [Accepted: 07/08/2019] [Indexed: 02/04/2023]
Abstract
The association of non-alcoholic fatty liver disease (NAFLD) with several other diseases has gained increased interest during the recent years. Among them, the association with chronic kidney disease (CKD) has emerged as an important one regarding both its prevalence and significance. The early recognition of this association is important for the prognosis of patients with NAFLD and CKD. Apart from early diagnosis, the accurate assessment of renal function is also crucial in the clinical practice of hepatologists. Several methods have been used in the literature for the evaluation of kidney function in patients with NAFLD up to now. In this respect, calculators (or formulas) for the estimation of Glomerular Filtration Rate (eGFR) and Albumin to Creatinine Ratio (ACR) are simple, practical and easily available methods for this purpose. The aim of this review is to report on the epidemiology and pathophysiology of the relationship between NAFLD and CKD and to describe the different methods of kidney function assessment in patients with NAFLD. The collection of all relevant data regarding this association will provide hepatologists with pertinent knowledge on this topic and allow them to use the most accurate methods for the assessment of kidney function in these patients in their clinical practice.
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Affiliation(s)
- Stefania Kiapidou
- 4th Department of Internal Medicine, School of Medicine, Aristotle University of Thessaloniki, Hippokration General Hospital of Thessaloniki, Konstantinoupoleos, Thessaloniki, Greece
| | - Christina Liava
- 4th Department of Internal Medicine, School of Medicine, Aristotle University of Thessaloniki, Hippokration General Hospital of Thessaloniki, Konstantinoupoleos, Thessaloniki, Greece
| | - Maria Kalogirou
- 4th Department of Internal Medicine, School of Medicine, Aristotle University of Thessaloniki, Hippokration General Hospital of Thessaloniki, Konstantinoupoleos, Thessaloniki, Greece
| | - Evangelos Akriviadis
- 4th Department of Internal Medicine, School of Medicine, Aristotle University of Thessaloniki, Hippokration General Hospital of Thessaloniki, Konstantinoupoleos, Thessaloniki, Greece
| | - Emmanouil Sinakos
- 4th Department of Internal Medicine, School of Medicine, Aristotle University of Thessaloniki, Hippokration General Hospital of Thessaloniki, Konstantinoupoleos, Thessaloniki, Greece.
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Assessment of Steatosis and Fibrosis in Liver Transplant Recipients Using Controlled Attenuation Parameter and Liver Stiffness Measurements. Can J Gastroenterol Hepatol 2021; 2021:6657047. [PMID: 33628759 PMCID: PMC7889377 DOI: 10.1155/2021/6657047] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 01/15/2021] [Indexed: 12/15/2022] Open
Abstract
AIM The primary objective of this study was to evaluate the prevalence of increased controlled attenuation parameter (CAP) and liver stiffness measurements (LSM) as surrogate markers of liver steatosis and fibrosis in liver transplant recipient (LTR). Secondary objectives were to determine the predictors of increased CAP and LSM in population of LTR. METHODS In this prospective, cross-sectional study, we have evaluated 175 LTRs' mean age as 61 (53-65) with a functioning graft for more than one year who came for regular outpatient examinations to the Department of Gastroenterology, University Hospital (UH) Merkur, Zagreb, Croatia. RESULTS Of 175 analyzed LTRs, 34.28% had obesity, 64.00% had hypertension, 38.28% had diabetes, and 58.85% had hyperlipidemia. The prevalence of liver steatosis was 68.57%, while the prevalence of severe liver steatosis was 46.85%. On multivariate analysis, independent factors associated with liver steatosis were male gender, total cholesterol as positive predictor, and HDL as negative predictor, and independent factors positively associated with severe liver steatosis were higher body mass index (BMI) and higher triglyceride levels. The prevalence of moderate liver fibrosis was 54.85%, while the prevalence of advanced liver fibrosis was 24%. On multivariate analysis, independent factors positively associated with moderate fibrosis were gamma-glutamyl transferase (GGT) and CAP, while the independent factor positively associated with advanced fibrosis was GGT. CONCLUSION Our study showed high prevalence of increased CAP and LSM measurements as surrogate markers of liver steatosis and fibrosis. Metabolic syndrome components were highly present and were associated with CAP and LSM values as well as in the pretransplant setting. Due to high prevalence of metabolic comorbidities and nonalcoholic fatty liver disease in LTRs and the lack of the abnormal liver test in a significant number of these patients, TE with CAP may be a reasonable initial assessment for LTRs with one or more components of the metabolic syndrome.
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Li AA, Ahmed A, Kim D. Extrahepatic Manifestations of Nonalcoholic Fatty Liver Disease. Gut Liver 2021; 14:168-178. [PMID: 31195434 PMCID: PMC7096231 DOI: 10.5009/gnl19069] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/26/2019] [Accepted: 04/05/2019] [Indexed: 02/06/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease and encompasses a spectrum of pathology from simple steatosis to inflammation and significant fibrosis that leads to cirrhosis. NAFLD and its comorbid conditions extend well beyond the liver. It is a multisystemic clinical disease entity with extrahepatic manifestations such as cardiovascular disease, type 2 diabetes, chronic kidney disease, hypothyroidism, polycystic ovarian syndrome, and psoriasis. Indeed, the most common causes of mortality in subjects with NAFLD are cardiovascular disease, followed by malignancies and then liver-related complications as a distant third. This review focuses on several of the key extrahepatic manifestations of NAFLD and areas for future investigation. Clinicians should learn to screen and initiate treatment for these extrahepatic manifestations in a prompt and timely fashion before they progress to end-organ damage.
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Affiliation(s)
- Andrew A Li
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Aijaz Ahmed
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, USA
| | - Donghee Kim
- Division of Gastroenterology and Hepatology, Stanford University School of Medicine, Stanford, CA, USA
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INASL-ISN Joint Position Statements on Management of Patients with Simultaneous Liver and Kidney Disease. J Clin Exp Hepatol 2021; 11:354-386. [PMID: 33994718 PMCID: PMC8103529 DOI: 10.1016/j.jceh.2020.09.005] [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: 07/31/2019] [Accepted: 09/27/2020] [Indexed: 01/10/2023] Open
Abstract
Renal dysfunction is very common among patients with chronic liver disease, and concomitant liver disease can occur among patients with chronic kidney disease. The spectrum of clinical presentation and underlying etiology is wide when concomitant kidney and liver disease occur in the same patient. Management of these patients with dual onslaught is challenging and requires a team approach of hepatologists and nephrologists. No recent guidelines exist on algorithmic approach toward diagnosis and management of these challenging patients. The Indian National Association for Study of Liver (INASL) in association with Indian Society of Nephrology (ISN) endeavored to develop joint guidelines on diagnosis and management of patients who have simultaneous liver and kidney disease. For generating these guidelines, an INASL-ISN Taskforce was constituted, which had members from both the societies. The taskforce first identified contentious issues on various aspects of simultaneous liver and kidney diseases, which were allotted to individual members of the taskforce who reviewed them in detail. A round-table meeting of the Taskforce was held on 20-21 October 2018 at New Delhi to discuss, debate, and finalize the consensus statements. The evidence and recommendations in these guidelines have been graded according to the Grading of Recommendations Assessment Development and Evaluation (GRADE) system with minor modifications. The strength of recommendations (strong and weak) thus reflects the quality (grade) of underlying evidence (I, II, III). We present here the INASL-ISN Joint Position Statements on Management of Patients with Simultaneous Liver and Kidney Disease.
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Mahmoud HEDA, Yousry WA, Saleh SA, El Badry M, Hussein A, Ali MH, El-Hariri HM. Renal resistive index in non-alcoholic fatty liver disease as an indicator of early renal affection. EGYPTIAN LIVER JOURNAL 2020. [DOI: 10.1186/s43066-019-0006-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Nonalcoholic fatty liver disease (NAFLD) is a possible risk factor for chronic kidney disease (CKD). Renal resistive index (RRI) which is a ratio of peak systolic and end diastolic velocity can test arterial stiffness and endothelial renal dysfunction. The aim of the work is to detect the relation between NAFLD and RRI as an indicator of early renal affection and its relation to the disease severity. This study included 150 subjects divided into 3 groups: patients with NASH, simple steatosis, and control group (50 patients each). All patients were subjected to full history taking, clinical examination, laboratory investigations, abdominal ultrasound examination, and RRI measurement.
Results
6.0% of NASH patients had significant fibrosis by NAFLD fibrosis score. RRI was significantly higher in NASH patients with fibrosis (mean = 0.74) than NASH patients without fibrosis (mean = 0.65) and patients with simple steatosis (mean = 0.63). It was the lowest in normal controls (mean = 0.61). There were significant correlations between RRI and age, BMI, serum lipids, liver enzymes, and NAFLD fibrosis score. Multiple linear regression analysis found that age and serum cholesterol were significant independent factors of increased RRI (p < 0.0001). RRI showed low diagnostic performance in differentiation between NASH and simple steatosis using ROC curve.
Conclusion
RRI was significantly higher in NASH patients with and without hepatic fibrosis. RRI correlates significantly with NAFLD fibrosis score. RRI can be used as an indicator of early renal affection in patients with NAFLD.
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Hydes T, Buchanan R, Kennedy OJ, Fraser S, Parkes J, Roderick P. Systematic review of the impact of non-alcoholic fatty liver disease on mortality and adverse clinical outcomes for individuals with chronic kidney disease. BMJ Open 2020; 10:e040970. [PMID: 32988952 PMCID: PMC7523199 DOI: 10.1136/bmjopen-2020-040970] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVES To investigate if non-alcoholic fatty liver disease (NAFLD) impacts mortality and adverse outcomes for individuals with chronic kidney disease (CKD). DESIGN Systematic review. DATA SOURCES PubMed, EMBASE and Web of Science were searched up to 1 February 2020 with no restriction on the earliest date. ELIGIBILITY CRITERIA FOR SELECTING STUDIES Observational cohort studies that reported either the risk of all-cause mortality, incidence of non-fatal cardiovascular events (CVE) or progression of kidney disease among adults with established CKD who have NAFLD compared with those without. DATA EXTRACTION AND SYNTHESIS Two reviewers extracted data and assessed bias independently. RESULTS Of 2604 records identified, 3 studies were included (UK (n=852), South Korea (n=1525) and USA (n=1413)). All were judged to have a low or moderate risk of bias. Data were insufficient for meta-analysis. Two studies examined the influence of NAFLD on all-cause mortality. One reported a significant positive association for NAFLD with all-cause mortality for individuals with CKD (p<0.05) (cardiovascular-related mortality p=ns), which was lost following adjustment for metabolic risk factors; the second reported no effect in adjusted and unadjusted models. The latter was the only study to report outcomes for non-fatal CVEs and observed NAFLD to be an independent risk factor for this (propensity-matched HR=2.00, p=0.02). Two studies examined CKD progression; in one adjusted rate of percentage decline in estimated glomerular filtration rate per year was found to be increased in those with NAFLD (p=0.002), whereas the other found no significant difference. CONCLUSIONS Few studies have examined the influence of NAFLD on prognosis and major adverse clinical outcomes within the CKD population. The studies identified were diverse in design and results were conflicting. This should be a focus for future research as both conditions continue to rise in prevalence and have end-stage events associated with significant health and economic costs. PROSPERO REGISTRATION NUMBER CRD42020166508.
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Affiliation(s)
- Theresa Hydes
- School of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Ryan Buchanan
- School of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Oliver J Kennedy
- School of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Simon Fraser
- School of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Julie Parkes
- School of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Paul Roderick
- School of Primary Care and Population Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
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Mikolasevic I, Lukic A, Juric T, Klapan M, Madzar P, Krolo N, Kolovrat D, Jurica I, Kedmenec I, Kihas D, Ilovaca D, Erstic I, Haralovic V, Cavlina D, Dejhalla E, Erdeljac D, Vukalovic B, Skenderevic N, Milic S. Non-alcoholic fatty liver disease and transient elastography. EXPLORATION OF MEDICINE 2020. [DOI: 10.37349/emed.2020.00014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a serious condition that can lead to fibrosis, cirrhosis, and hepatocellular carcinoma. NAFLD is associated with metabolic syndrome (MetS) and all of its components. According to data, around 25-30% of population has NAFLD. Giving the growing incidence of MetS, obesity and diabetes mellitus type 2, NAFLD related terminal-stage liver disease is becoming prevailing indication for liver transplantation. In order to prevent terminal stage of this disease, it is crucial to determine those that are in risk group, to modify their risk factors and monitor their potential progression. In the absence of other causes of chronic liver disease, the prime diagnosis of NAFLD in daily clinical practice includes anamnesis, laboratory results (increased levels of aminotransferases and gammaglutamil transferases) and imaging methods. The biggest challenge with NAFLD patients is to differentiate simple steatosis from nonalcoholic steatohepatitis, and detection of fibrosis, that is the main driver in NAFLD progression. The gold standard for NAFLD diagnosis still remains the liver biopsy (LB). However, in recent years many noninvasive methods were invented, such as transient elastography (TE). TE (FibroScan®, Echosens, Paris, France) is used for diagnosis of pathological differences of liver stiffness measurement (LSM) and controlled attenuation parameter (CAP). Investigations in the last years have confirmed that elastographic parameters of steatsis (CAP) and fibrosis (LSM) are reliable biomarkers to non-invasively assess liver steatosis and fibrosis respectively in NAFLD patients. A quick, straightforward and non-invasive method for NAFLD screening in patients with MetS components is TE-CAP. Once diagnosed, the next step is to determine the presence of fibrosis by LSM which should point out high risk patients. Those patients should be referred to hepatologists. LB may be avoided in a substantial number of patients if TE with CAP is used for screening.
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Affiliation(s)
- Ivana Mikolasevic
- Department of Gastroenterology, University Hospital Center Rijeka, 51000 Rijeka, Croatia; School of Medicine, 51000 Rijeka, Croatia
| | | | - Toni Juric
- School of Medicine, 51000 Rijeka, Croatia
| | - Mia Klapan
- School of Medicine, 51000 Rijeka, Croatia
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Nadija Skenderevic
- Department of Gastroenterology, University Hospital Center Rijeka, 51000 Rijeka, Croatia
| | - Sandra Milic
- Department of Gastroenterology, University Hospital Center Rijeka, 51000 Rijeka, Croatia; School of Medicine, 51000 Rijeka, Croatia
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Therapeutic implications of shared mechanisms in non-alcoholic fatty liver disease and chronic kidney disease. J Nephrol 2020; 34:649-659. [PMID: 32440840 DOI: 10.1007/s40620-020-00751-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/11/2020] [Indexed: 02/07/2023]
Abstract
The most common cause of liver disease worldwide is now non-alcoholic fatty liver disease (NAFLD). NAFLD refers to a spectrum of disease ranging from steatosis to non-alcoholic steatohepatitis, causing cirrhosis, and ultimately hepatocellular carcinoma. However, the impact of NAFLD is not limited to the liver. NAFLD has extra-hepatic consequences, most notably, cardiovascular and renal disease. NAFLD and chronic kidney disease share pathogenic mechanisms including insulin resistance, lipotoxicity, inflammation and oxidative stress. Not surprisingly, there has been a recent surge in efforts to manage NAFLD in an integrated way that not only protects the liver but also delays comorbidities such as chronic kidney disease. This concept of simultaneously addressing the main disease target and comorbidities is key to improve outcomes, as recently demonstrated by clinical trials of SGLT2 inhibitors and GLP1 receptor agonists in diabetes. HIF activators, already marketed in China, also have the potential to protect both liver and kidney, as suggested by preclinical data. This review concisely discusses efforts at identifying common pathogenic pathways between NAFLD and chronic kidney disease with an emphasis on potential paradigm shifts in diagnostic workup and therapeutic management.
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Mantovani A, Zusi C, Dalbeni A, Grani G, Buzzetti E. Risk of Kidney Dysfunction IN Nafld. Curr Pharm Des 2020; 26:1045-1061. [DOI: 10.2174/1381612825666191026113119] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 10/21/2019] [Indexed: 02/06/2023]
Abstract
Background:
The timely identification of traditional and non-traditional precursors and risk factors for
chronic kidney disease (CKD) (a common systemic disease defined as a decreased kidney function documented
by reduced glomerular filtration rate, or markers of kidney damage, or both) is relevant in clinical practice, as
CKD increases the risk of end-stage renal disease and other serious comorbidities. A possible relationship between
non-alcoholic fatty liver disease (NAFLD) (which is to date the most common chronic disease worldwide)
and CKD has recently gained significant attention of researchers.
Methods :
A systematic literature search using appropriate keywords was made in order to identify relevant articles
that have investigated the association between NAFLD and CKD.
Results:
Several observational studies and meta-analyses have reported the existence of an independent association
between NAFLD and risk of CKD in patients with and without diabetes. However, whilst the association
between NAFLD and risk of prevalent CKD is strong across various patient populations, whether NAFLD is
independently associated with the development and progression of CKD is still debatable. Moreover, emerging
evidence now suggests a potential association between patatin-like phospholipase domain-containing protein-3
(PNPLA3) rs738409 genotype (the most important genetic variant associated to NAFLD) and decreasing kidney
function, independent of NAFLD.
Conclusions :
Convincing evidence now indicates that CKD is increased among patients with NAFLD. For this
reason, patients with NAFLD should be regularly monitored for renal function and, on the other hand , NAFLD
should be considered in all patients with CKD, especially if they are obese or have type 2 diabetes.
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Affiliation(s)
- Alessandro Mantovani
- Section of Endocrinology, Diabetes and Metabolism, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy
| | - Chiara Zusi
- Section of Endocrinology, Diabetes and Metabolism, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy
| | - Andrea Dalbeni
- Section of General Medicine, Hypertension and Liver Unit, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy
| | - Giorgio Grani
- Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Elena Buzzetti
- Division of Internal Medicine 2 and Center for Hemochromatosis, University of Modena and Reggio Emilia, Modena, Italy
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Mikolasevic I, Lukenda Zanko V, Jakopcic I, Domislovic V, Mijic A, Stevanovic T, Delija B, Bokun T, Dinjar Kujundzic P, Ostojic A, Filipec Kanizaj T, Grgurevic I, Krznaric Z, Stimac D, Targher G. Prospective evaluation of non-alcoholic fatty liver disease by elastographic methods of liver steatosis and fibrosis; controlled attenuation parameter and liver stiffness measurements. J Diabetes Complications 2020; 34:107512. [PMID: 31882273 DOI: 10.1016/j.jdiacomp.2019.107512] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 11/29/2019] [Accepted: 12/12/2019] [Indexed: 02/07/2023]
Abstract
AIMS To examine the temporal changes of both controlled attenuation parameter (CAP) and liver stiffness measurements (LSM), assessed by Fibroscan, in a large sample of patients with non-alcoholic fatty liver disease (NAFLD). METHODS In this prospective, observational study, we consecutively enrolled 507 adult individuals with Fibroscan-defined NAFLD who were followed for a mean period of 21.2 ± 11.7 months. RESULTS During the follow-up period, 84 patients (16.5%) had a progression of CAP of at least 20% with a median time of 39.93 months, while 201 (39.6%) patients had a progression of LSM of at least 20% with median time of 30.46 months. There were significant differences in the proportion of LSM progression across body mass index (BMI) categories, with obese patients having the highest risk of progression over the follow-up (hazard ratio 1.66; 95%CI 1.23-2.25). Multivariable regression analysis showed that BMI and serum creatinine levels were the strongest predictors for CAP progression in the whole population, while HOMA-estimated insulin resistance was an independent predictor of LSM progression over time in the subgroup of obese patients. CONCLUSION This prospective study shows for the first time that the progression risk of both liver steatosis and fibrosis, detected non-invasively by Fibroscan, is relevant and shares essentially the same metabolic risk factors that are associated with NAFLD progression detected by other invasive methods.
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Affiliation(s)
- I Mikolasevic
- Department of gastroenterology, UHC Rijeka, Rijeka, Croatia; School of medicine, Rijeka, Croatia; Department of gastroenterology, UH Merkur, Zagreb, Croatia.
| | - V Lukenda Zanko
- Department of Internal medicine, General hospital "Josip Benčević", Slavonski Brod, Croatia
| | | | - V Domislovic
- Department of gastroenterology and hepatology, UHC Zagreb, Zagreb, Croatia
| | - A Mijic
- School of medicine, Rijeka, Croatia
| | | | - B Delija
- School of medicine, Rijeka, Croatia
| | - T Bokun
- Department of gastroenterology and hepatology, UH Dubrava, Zagreb, Croatia
| | | | - A Ostojic
- Department of gastroenterology, UH Merkur, Zagreb, Croatia
| | - T Filipec Kanizaj
- Department of gastroenterology, UH Merkur, Zagreb, Croatia; School of medicine, Zagreb, Croatia
| | - I Grgurevic
- Department of gastroenterology and hepatology, UH Dubrava, Zagreb, Croatia; School of medicine, Zagreb, Croatia
| | - Z Krznaric
- Department of gastroenterology and hepatology, UHC Zagreb, Zagreb, Croatia; School of medicine, Zagreb, Croatia
| | - D Stimac
- Department of gastroenterology, UHC Rijeka, Rijeka, Croatia; School of medicine, Rijeka, Croatia
| | - G Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy
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25
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Wilechansky RM, Pedley A, Massaro JM, Hoffmann U, Benjamin EJ, Long MT. Relations of liver fat with prevalent and incident chronic kidney disease in the Framingham Heart Study: A secondary analysis. Liver Int 2019; 39:1535-1544. [PMID: 31033142 PMCID: PMC6675651 DOI: 10.1111/liv.14125] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/13/2019] [Accepted: 04/16/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS Prior studies demonstrated an association between non-alcoholic fatty liver disease and chronic kidney disease (CKD), though data are conflicting. We examined the association between liver fat and prevalent and incident CKD in the Framingham Heart Study (FHS). METHODS We included FHS participants who underwent computed tomography (CT) from 2002 to 2005 (n = 1315). After excluding heavy alcohol use (n = 211) and missing covariates (n = 117), the final sample included 987 participants. For the incident CKD analysis, we excluded 73 participants with prevalent CKD. Liver fat was measured by the average liver attenuation on CT. Estimated glomerular filtration rate (eGFR) was obtained using the CKD Epidemiology Collaboration Creatinine-Cystatin C equation, and CKD was defined as eGFR < 60 ml/min/1.73 m2 . Microalbuminuria was defined by sex-specific urinary albumin-creatinine ratio cut-offs. Multivariable-adjusted regression models were performed to determine the association between liver fat and CKD. RESULTS The prevalence of hepatic steatosis and CKD were 19% and 14% respectively (55.9% women, mean age 60 ± 9 years). After adjusting for covariates, we observed no significant associations between liver fat and CKD, microalbuminuria or eGFR in cross-sectional analyses. We observed positive associations between liver fat, incident microalbuminuria and reduced eGFR in age- and sex-adjusted models; these relationships were not significant in multivariable-adjusted models. CONCLUSIONS In this community-based cohort study, we did not observe significant associations between liver fat and prevalent or incident CKD with a median follow-up time of 12.5 years. The association between NAFLD and CKD may be accounted for by shared risk factors; confirmatory studies are needed.
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Affiliation(s)
| | - Alison Pedley
- National Heart, Lung, and Blood Institute’s and Boston University’s Framingham Heart Study, Framingham, MA
| | - Joseph M. Massaro
- Department of Mathematics and Statistics, Boston University, Boston, MA
| | - Udo Hoffmann
- Radiology Department, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Emelia J. Benjamin
- National Heart, Lung, and Blood Institute’s and Boston University’s Framingham Heart Study, Framingham, MA,Evans Department of Medicine, Whitaker Cardiovascular Institute and Cardiology Section, Boston University School of Medicine, Boston, MA,Department of Epidemiology, Boston University School of Public Health, Boston, MA
| | - Michelle T. Long
- National Heart, Lung, and Blood Institute’s and Boston University’s Framingham Heart Study, Framingham, MA,Section of Gastroenterology, Boston Medical Center, Boston University School of Medicine, Boston, MA
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26
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Clarke JD, Dzierlenga A, Arman T, Toth E, Li H, Lynch KD, Tian DD, Goedken M, Paine MF, Cherrington N. Nonalcoholic fatty liver disease alters microcystin-LR toxicokinetics and acute toxicity. Toxicon 2019; 162:1-8. [PMID: 30849452 PMCID: PMC6447445 DOI: 10.1016/j.toxicon.2019.03.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 02/27/2019] [Accepted: 03/03/2019] [Indexed: 02/08/2023]
Abstract
Microcystin-LR (MCLR) is a cyanotoxin produced by blue-green algae that causes liver and kidney toxicities. MCLR toxicity is dependent on cellular uptake through the organic anion transporting polypeptide (OATP) transporters. Nonalcoholic fatty liver disease (NAFLD) progresses through multiple stages, alters expression of hepatic OATPs, and is associated with chronic kidney disease. The purpose of this study was to determine whether NAFLD increases systemic exposure to MCLR and influences acute liver and kidney toxicities. Rats were fed a control diet or two dietary models of NAFLD; methionine and choline deficient (MCD) or high fat/high cholesterol (HFHC). Two studies were performed in these groups: 1) a single dose intravenous toxicokinetic study (20 μg/kg), and 2) a single dose intraperitoneal toxicity study (60 μg/kg). Compared to control rats, plasma MCLR area under the concentration-time curve (AUC) in MCD rats doubled, whereas biliary clearance (Clbil) was unchanged; in contrast, plasma AUC in HFHC rats was unchanged, whereas Clbil approximately doubled. Less MCLR bound to PP2A was observed in the liver of MCD rats. This shift in exposure decreased the severity of liver pathology only in the MCD rats after a single toxic dose of MCLR (60 μg/kg). In contrast, the single toxic dose of MCLR increased hepatic inflammation, plasma cholesterol, proteinuria, and urinary KIM1 in HFHC rats more than MCLR exposed control rats. In conclusion, rodent models of NAFLD alter MCLR toxicokinetics and acute toxicity and may have implications for liver and kidney pathologies in NAFLD patients.
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Affiliation(s)
- John D Clarke
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA.
| | - Anika Dzierlenga
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, 85721, USA
| | - Tarana Arman
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - Erica Toth
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, 85721, USA
| | - Hui Li
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, 85721, USA
| | - Katherine D Lynch
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - Dan-Dan Tian
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - Michael Goedken
- Rutgers Translational Sciences, Rutgers University, Piscataway, NJ, 08901, USA
| | - Mary F Paine
- Department of Pharmaceutical Sciences, Washington State University, Spokane, WA, 99202, USA
| | - Nathan Cherrington
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ, 85721, USA
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27
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Chinnadurai R, Macdougall IC, Kalra PA. Treatment of anaemia in end-stage renal disease: A double-edged iron sword? EBioMedicine 2019; 40:31-32. [PMID: 30660656 PMCID: PMC6413296 DOI: 10.1016/j.ebiom.2019.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 01/04/2019] [Indexed: 01/02/2023] Open
Affiliation(s)
- Rajkumar Chinnadurai
- Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, United Kingdom.
| | - Iain C Macdougall
- Department of Renal Medicine, King's College Hospital, London, United Kingdom.
| | - Philip A Kalra
- Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, United Kingdom.
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28
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Alshammari GM, Balakrishnan A, Chinnasamy T. Butein protects the nonalcoholic fatty liver through mitochondrial reactive oxygen species attenuation in rats. Biofactors 2018; 44:289-298. [PMID: 29672963 DOI: 10.1002/biof.1428] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 03/13/2018] [Indexed: 12/13/2022]
Abstract
One of the worldwide metabolic health dilemma is nonalcoholic fatty liver diseases (NAFLD). Researchers are searching effective drug to manage NAFLD patients. One of the best way to manage the metabolic imperfection is through natural principal isolated from different sources. Butein, a natural compound known to have numerous pharmacological application. In the current study we assessed the therapeutic effect of butein administration on liver function tests, oxidative stress, antioxidants, lipid abnormalities, serum inflammatory cytokines, and mitochondrial reactive oxygen species levels, in rats with methionine-choline deficient (MCD) diet induced NAFLD. Male Wistar rats were treated with MCD diet with/without butein (200 mg/kg body wt. orally) for 6 weeks. The protective effect of butein, were evident from decreased transaminase activities, restoration of albumin, globulin, albumin/globulin ratio, and oxidants in serum (P < 0.01), further it improved liver antioxidant status (P < 0.01). Butein significantly lowered lipid profile parameters (P < 0.01), suppressed inflammatory cytokines (P < 0.01), and improved liver histology. Further to understand the possible mechanism behind the hepatoprotective and lipid lowering effect of butein, the activities of heme oxygenase (HO1), myeloperoxidase (MPO), and mitochondrial reactive oxygen species (ROS) were measured. We found that butein supplementation significantly decreased the activity of HO1 (P < 0.001), and increased the activity of MPO (P < 0.001). Furthermore butein attenuated mitochondrial ROS produced in NAFLD condition. Present study shows that butein supplementation restore liver function by altering liver oxidative stress, inflammatory markers, vital defensive enzyme activities, and mitochondrial ROS. In summary, butein has remarkable potential to develop effective hepato-protective drug. © 2018 BioFactors, 44(3):289-298, 2018.
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Affiliation(s)
- Ghedeir M Alshammari
- Adipocytes and Metabolic Disorders Lab, Food Science and Nutrition Department, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Aristatile Balakrishnan
- Adipocytes and Metabolic Disorders Lab, Food Science and Nutrition Department, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Thirunavukkarasu Chinnasamy
- Adipocytes and Metabolic Disorders Lab, Food Science and Nutrition Department, King Saud University, Riyadh, 11451, Saudi Arabia
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29
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Chinnadurai R, Ritchie J, Green D, Kalra PA. Non-alcoholic fatty liver disease and clinical outcomes in chronic kidney disease. Nephrol Dial Transplant 2018; 34:449-457. [DOI: 10.1093/ndt/gfx381] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 12/19/2017] [Indexed: 12/11/2022] Open
Affiliation(s)
| | - James Ritchie
- Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, UK
| | - Darren Green
- Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, UK
| | - Philip A Kalra
- Department of Renal Medicine, Salford Royal NHS Foundation Trust, Salford, UK
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30
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Adams LA, Anstee QM, Tilg H, Targher G. Non-alcoholic fatty liver disease and its relationship with cardiovascular disease and other extrahepatic diseases. Gut 2017; 66:1138-1153. [PMID: 28314735 DOI: 10.1136/gutjnl-2017-313884] [Citation(s) in RCA: 724] [Impact Index Per Article: 103.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 02/14/2017] [Accepted: 02/16/2017] [Indexed: 02/07/2023]
Abstract
Key physiological functions of the liver, including glucose and lipid metabolism, become disturbed in the setting of non-alcoholic fatty liver disease (NAFLD) and may be associated with a systemic inflammatory 'milieu' initiated in part by liver-secreted cytokines and molecules. Consequently, the pathophysiological effects of NAFLD extend beyond the liver with a large body of clinical evidence demonstrating NAFLD to be independently associated with both prevalent and incident cardiovascular disease (CVD), chronic kidney disease (CKD) and type 2 diabetes mellitus (T2DM). The magnitude of risk of developing these extrahepatic diseases parallels the underlying severity of NAFLD, such that patients with non-alcoholic steatohepatitis (NASH) appear to be at greater risk of incident CVD, CKD and T2DM than those with simple steatosis. Other modifiers of risk may include genetic variants (eg, patatin-like phospholipase domain-containing 3 and trans-membrane 6 superfamily member 2 polymorphisms), visceral adipose tissue accumulation, dietary intake and the gut microbiome. Emerging data also suggest that NAFLD may be a risk factor for colonic neoplasia and reduced bone mineral density, especially among men. Importantly, improvement/resolution of NAFLD is associated with a reduced incidence of T2DM and improved kidney function, adding weight to causality and suggesting liver focused treatments may reduce risk of extrahepatic complications. Awareness of these associations is important for the clinicians such that CVD risk factor management, screening for T2DM and CKD are part of the routine management of patients with NAFLD.
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Affiliation(s)
- Leon A Adams
- School of Medicine and Pharmacology, The University of Western Australia, Nedlands, Western Australia, Australia
| | - Quentin M Anstee
- Faculty of Medical Sciences, Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne, UK.,Liver Unit, Newcastle Upon Tyne Hospitals NHS Trust, Freeman Hospital, Newcastle upon Tyne, UK
| | - Herbert Tilg
- Department of Internal Medicine I, Gastroenterology, Hepatology & Metabolism, Medical University Innsbruck, Innsbruck, Austria
| | - Giovanni Targher
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy
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31
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Yoon CY, Lee M, Kim SU, Lim H, Chang TI, Kee YK, Han SG, Han IM, Kwon YE, Park KS, Lee MJ, Park JT, Han SH, Ahn SH, Kang SW, Yoo TH. Fatty liver associated with metabolic derangement in patients with chronic kidney disease: A controlled attenuation parameter study. Kidney Res Clin Pract 2017; 36:48-57. [PMID: 28392997 PMCID: PMC5331975 DOI: 10.23876/j.krcp.2017.36.1.48] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 08/06/2016] [Accepted: 09/23/2016] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Hepatic steatosis measured with controlled attenuation parameter (CAP) using transient elastography predicts metabolic syndrome in the general population. We investigated whether CAP predicted metabolic syndrome in chronic kidney disease patients. METHODS CAP was measured with transient elastography in 465 predialysis chronic kidney disease patients (mean age, 57.5 years). RESULTS The median CAP value was 239 (202-274) dB/m. In 195 (41.9%) patients with metabolic syndrome, diabetes mellitus was more prevalent (105 [53.8%] vs. 71 [26.3%], P < 0.001), with significantly increased urine albumin-to-creatinine ratio (184 [38-706] vs. 56 [16-408] mg/g Cr, P = 0.003), high sensitivity C-reactive protein levels (5.4 [1.4-28.2] vs. 1.7 [0.6-9.9] mg/L, P < 0.001), and CAP (248 [210-302] vs. 226 [196-259] dB/m, P < 0.001). In multiple linear regression analysis, CAP was independently related to body mass index (β = 0.742, P < 0.001), triglyceride levels (β = 2.034, P < 0.001), estimated glomerular filtration rate (β = 0.316, P = 0.001), serum albumin (β = 1.386, P < 0.001), alanine aminotransferase (β = 0.064, P = 0.029), and total bilirubin (β = -0.881, P = 0.009). In multiple logistic regression analysis, increased CAP was independently associated with increased metabolic syndrome risk (per 10 dB/m increase; odds ratio, 1.093; 95% confidence interval, 1.009-1.183; P = 0.029) even after adjusting for multiple confounding factors. CONCLUSION Increased CAP measured with transient elastography significantly correlated with and could predict increased metabolic syndrome risk in chronic kidney disease patients.
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Affiliation(s)
- Chang-Yun Yoon
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Misol Lee
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Seung Up Kim
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Hyunsun Lim
- Department of Policy Research Affairs, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Tae Ik Chang
- Department of Internal Medicine, NHIS Medical Center, Ilsan Hospital, Goyang, Korea
| | - Youn Kyung Kee
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Seung Gyu Han
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - In Mee Han
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Young Eun Kwon
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Kyoung Sook Park
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Mi Jung Lee
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Jung Tak Park
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Seung Hyeok Han
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
| | - Sang Hoon Ahn
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea; Brain Korea 21 Project for Medical Science, Seoul, Korea
| | - Shin-Wook Kang
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea; Severance Biomedical Science Institute, Brain Korea 21 PLUS, Yonsei University, Seoul, Korea
| | - Tae-Hyun Yoo
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Korea
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32
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Association of Renal Elasticity and Renal Function Progression in Patients with Chronic Kidney Disease Evaluated by Real-Time Ultrasound Elastography. Sci Rep 2017; 7:43303. [PMID: 28240304 PMCID: PMC5327389 DOI: 10.1038/srep43303] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Accepted: 01/24/2017] [Indexed: 12/13/2022] Open
Abstract
Glomerulosclerosis and tubulointerstitial fibrosis are associated with lower renal parenchymal elasticity. This study was designed to evaluate the predictive ability of renal elasticity in patients with chronic kidney disease (CKD). 148 non-CKD patients and 227 patients with CKD were recruited. 145 (38.7%) were female, 166 (73.1%) had diabetes, the mean estimated glomerular filtration rate (eGFR) was 33.9 ± 15.8 ml/min/1.73 m2 and the median urinary protein-to-creatinine ratio (UPCR) 502 (122–1491) mg/g. Patients with later stages of CKD had lower renal elasticity values, indicating stiffer kidneys (p < 0.001), and smaller kidney (p < 0.001). Renal elasticity correlated with log-transformed UPCR (β = −7.544, P < 0.001). Renal length correlated with age (β = −0.231, P < 0.001), sex (β = −3.730, P < 0.001), serum albumin level (β = −3.024, P = 0.001), body mass index (β = 0.390, P = 0.009) and eGFR (β = 0.146, P < 0.001). In fully-adjusted logistic regression model, the odds ratio (OR) per 10 unit change in renal elasticity for rapid renal deterioration was 0.928 (95% CI, 0.864–0.997; P = 0.042). The OR per 1 mm change in renal length for rapid renal deterioration was 1.022 (95% CI, 0.994–1.050; P = 0.125). Renal elasticity is associated with proteinuria and rapid renal deterioration in patients with CKD.
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33
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Targher G, Byrne CD. Non-alcoholic fatty liver disease: an emerging driving force in chronic kidney disease. Nat Rev Nephrol 2017; 13:297-310. [PMID: 28218263 DOI: 10.1038/nrneph.2017.16] [Citation(s) in RCA: 200] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is caused by an accumulation of fat in the liver; the condition can progress over time to increase the risk of developing cirrhosis, end-stage liver disease and hepatocellular carcinoma. The prevalence of NAFLD is increasing rapidly owing to the global epidemics of obesity and type 2 diabetes mellitus (T2DM), and NAFLD has been predicted to become the most important indication for liver transplantation over the next decade. It is now increasingly clear that NAFLD not only affects the liver but can also increase the risk of developing extra-hepatic diseases, including T2DM, cardiovascular disease and chronic kidney disease (CKD), which have a considerable impact on health-care resources. Accumulating evidence indicates that NAFLD exacerbates insulin resistance, predisposes to atherogenic dyslipidaemia and releases a variety of proinflammatory factors, prothrombotic factors and profibrogenic molecules that can promote vascular and renal damage. Furthermore, communication or 'crosstalk' between affected organs or tissues in these diseases has the potential to further harm function and worsen patient outcomes, and increasing amounts of evidence point to a strong association between NAFLD and CKD. Whether a causal relationship between NAFLD and CKD exists remains to be definitively established.
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Affiliation(s)
- Giovanni Targher
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Piazzale Stefani 1, 37126 Verona, Italy
| | - Christopher D Byrne
- Nutrition and Metabolism, Faculty of Medicine, University of Southampton.,Southampton National Institute for Health Research Biomedical Research Centre, University Hospital Southampton, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK
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Mikolasevic I, Milic S, Turk Wensveen T, Grgic I, Jakopcic I, Stimac D, Wensveen F, Orlic L. Nonalcoholic fatty liver disease - A multisystem disease? World J Gastroenterol 2016; 22:9488-9505. [PMID: 27920470 PMCID: PMC5116593 DOI: 10.3748/wjg.v22.i43.9488] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/30/2016] [Accepted: 10/19/2016] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is one of the most common comorbidities associated with overweight and metabolic syndrome (MetS). Importantly, NAFLD is one of its most dangerous complications because it can lead to severe liver pathologies, including fibrosis, cirrhosis and hepatic cellular carcinoma. Given the increasing worldwide prevalence of obesity, NAFLD has become the most common cause of chronic liver disease and therefore is a major global health problem. Currently, NAFLD is predominantly regarded as a hepatic manifestation of MetS. However, accumulating evidence indicates that the effects of NAFLD extend beyond the liver and are negatively associated with a range of chronic diseases, most notably cardiovascular disease (CVD), diabetes mellitus type 2 (T2DM) and chronic kidney disease (CKD). It is becoming increasingly clear that these diseases are the result of the same underlying pathophysiological processes associated with MetS, such as insulin resistance, chronic systemic inflammation and dyslipidemia. As a result, they have been shown to be independent reciprocal risk factors. In addition, recent data have shown that NAFLD actively contributes to aggravation of the pathophysiology of CVD, T2DM, and CKD, as well as several other pathologies. Thus, NAFLD is a direct cause of many chronic diseases associated with MetS, and better detection and treatment of fatty liver disease is therefore urgently needed. As non-invasive screening methods for liver disease become increasingly available, detection and treatment of NAFLD in patients with MetS should therefore be considered by both (sub-) specialists and primary care physicians.
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Ali MHH, Messiha BAS, Abdel-Latif HAT. Protective effect of ursodeoxycholic acid, resveratrol, and N-acetylcysteine on nonalcoholic fatty liver disease in rats. PHARMACEUTICAL BIOLOGY 2016; 54:1198-1208. [PMID: 26134756 DOI: 10.3109/13880209.2015.1060247] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
CONTEXT Nonalcoholic fatty liver disease (NAFLD) is the most common chronic liver disease. Resveratrol (RSV) and N-acetylcysteine (NAC) are safe representatives of natural and synthetic antioxidants, respectively. OBJECTIVE The objective of this study was to evaluate protective effects of RSV and NAC, compared with ursodeoxycholic acid (UDCA), on experimental NAFLD. MATERIALS AND METHODS NAFLD was induced by feeding rats a methionine choline-deficient diet (MCDD) for four cycles, each of 4 d of MCDD feeding and 3 d of fasting. Animals were divided into normal control, steatosis control, and five treatment groups, receiving UDCA (25 mg/kg/d), RSV (10 mg/kg/d), NAC (20 mg/kg/d), UDCA + RSV, and UDCA + NAC orally for 28 d. Liver integrity markers (liver index and serum transaminases), serum tumor necrosis factor-α (TNF-α), glucose, albumin, renal functions (urea, creatinine), lipid profile (total cholesterol; TC, triglycerides, high density lipoproteins, low density lipoproteins; LDL-C, very low density lipoproteins, leptin), and oxidative stress markers (hepatic malondialdehyde; MDA, glutathione; GSH, glutathione-S-transferase; GST) were measured using automatic analyzer, colorimetric kits, and ELISA kits, supported by a liver histopathological study. RESULTS RSV and NAC administration significantly improved liver index (RSV only), alanine transaminase (52, 52%), TNF-α (70, 70%), glucose (69, 80%), albumin (122, 114%), MDA (55, 63%), GSH (160, 152%), GST (84, 84%), TC (86, 86%), LDL-C (83, 81%), and leptin (59, 70%) levels compared with steatosis control values. A combination of RSV or NAC with UDCA seems to ameliorate their effects. DISCUSSION AND CONCLUSION RSV and NAC are effective on NAFLD through antioxidant, anti-inflammatory, and lipid-lowering potentials, where as RSV seems better than UDCA or NAC.
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Affiliation(s)
- Mahmoud Hussein Hassan Ali
- a Department of Pharmacology and Toxicology , Faculty of Pharmacy, Beni-Sueif University , Beni-Sueif , Egypt and
| | - Basim Anwar Shehata Messiha
- a Department of Pharmacology and Toxicology , Faculty of Pharmacy, Beni-Sueif University , Beni-Sueif , Egypt and
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Marcuccilli M, Chonchol M. NAFLD and Chronic Kidney Disease. Int J Mol Sci 2016; 17:562. [PMID: 27089331 PMCID: PMC4849018 DOI: 10.3390/ijms17040562] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 03/25/2016] [Accepted: 03/28/2016] [Indexed: 12/13/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease in developed countries and it is now considered a risk factor for cardiovascular disease. Evidence linking NAFLD to the development and progression of chronic kidney disease (CKD) is emerging as a popular area of scientific interest. The rise in simultaneous liver-kidney transplantation as well as the significant cost associated with the presence of chronic kidney disease in the NAFLD population make this entity a worthwhile target for screening and therapeutic intervention. While several cross-sectional and case control studies have been published to substantiate these theories, very little data exists on the underlying cause of NAFLD and CKD. In this review, we will discuss the most recent publications on the diagnosis of NAFLD as well new evidence regarding the pathophysiology of NAFLD and CKD as an inflammatory disorder. These mechanisms include the role of obesity, the renin-angiotensin system, and dysregulation of fructose metabolism and lipogenesis in the development of both disorders. Further investigation of these pathways may lead to novel therapies that aim to target the NAFLD and CKD. However, more prospective studies that include information on both renal and liver histology will be necessary in order to understand the relationship between these diseases.
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Affiliation(s)
- Morgan Marcuccilli
- Division of Renal Diseases and Hypertension, University of Colorado Hospital, Aurora, CO 80045, USA.
| | - Michel Chonchol
- Division of Renal Diseases and Hypertension, University of Colorado Denver, 13199 East Montview Boulevard, Suite 495, Aurora, CO 80045, USA.
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Xu X, Lu L, Dong Q, Li X, Zhang N, Xin Y, Xuan S. Research advances in the relationship between nonalcoholic fatty liver disease and atherosclerosis. Lipids Health Dis 2015; 14:158. [PMID: 26631018 PMCID: PMC4668687 DOI: 10.1186/s12944-015-0141-z] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 10/22/2015] [Indexed: 02/08/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a metabolic stress-induced liver disease that is closely related not only to genetic susceptibility but also to insulin resistance and highly linked with metabolic syndrome. In recent years, the prevalence of NAFLD has increased rapidly, paralleling the epidemic of type 2 diabetes mellitus and obesity leading to cardiovascular disease. It has been demonstrated that NAFLD is highly associated with atherosclerosis. With recently gained knowledge, it appears that NAFLD may induce insulin resistance, dyslipidemia, oxidative stress, inflammation, and fluctuation of adipokines associated with atherosclerosis. In this review, we aimed to summarize recent discoveries related to both NAFLD and atherosclerosis, and to identify possible mechanisms linking them.
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Affiliation(s)
- Xin Xu
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China.,Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - Linlin Lu
- Digestive Disease Key Laboratory of Qingdao, Qingdao, China.,Central Laboratories, Qingdao Municipal Hospital, Qingdao, China
| | - Quanyong Dong
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China.,Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - Xiaolin Li
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China.,Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - Nannan Zhang
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China.,Digestive Disease Key Laboratory of Qingdao, Qingdao, China
| | - Yongning Xin
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China. .,Digestive Disease Key Laboratory of Qingdao, Qingdao, China. .,Central Laboratories, Qingdao Municipal Hospital, Qingdao, China.
| | - Shiying Xuan
- Department of Gastroenterology, Qingdao Municipal Hospital, Dalian Medical University, Qingdao, China. .,Digestive Disease Key Laboratory of Qingdao, Qingdao, China. .,Central Laboratories, Qingdao Municipal Hospital, Qingdao, China.
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Jia G, Di F, Wang Q, Shao J, Gao L, Wang L, Li Q, Li N. Non-Alcoholic Fatty Liver Disease Is a Risk Factor for the Development of Diabetic Nephropathy in Patients with Type 2 Diabetes Mellitus. PLoS One 2015; 10:e0142808. [PMID: 26566287 PMCID: PMC4643958 DOI: 10.1371/journal.pone.0142808] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Accepted: 10/27/2015] [Indexed: 12/18/2022] Open
Abstract
Background Non-alcoholic fatty liver disease (NAFLD) is prevalent in individuals with type 2 diabetes mellitus (T2DM). Diabetic nephropathy (DN) is also associated with T2DM. However, little is known about the interaction between these conditions in patients with T2DM. Objective To examine the association between NAFLD and DN in patients with T2DM. Methods This retrospective study included patients seen between January 2006 and July 2014.T2DM patients were divided into two groups based on NAFLD status (with NAFLD = group A; without = group B). The cumulative incidence of DN and chronic kidney disease (CKD) staging were compared between the two groups. Liver fat content was examined in some patients. Associations among NAFLD, other factors,and DN were analyzed by the additive interaction method. Results Cumulative incidence of DN in patients from group A (58.58%) was higher than in group B (37.22%) (P = 0.005). In both groups, the number of DN patients with CKD stage 1 was greater than the number of patients with stages 2–5. Increased liver fat content was associated with increased occurrence of severe and mild albuminuria and decreased glomerular filtration rate (GFR). There were positive correlations between NAFLD and insulin resistance index (HOMA-IR), free fatty acids (FFA), tumor necrosis factor-α (TNF-α), omentin-1, visceral fat area, homocysteine (HCY), and serum uric acid (UA). Conclusion NAFLD might be a risk factor for DN. Elevated liver fat content could be associated with higher DN burden.
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Affiliation(s)
- Guoyu Jia
- Department of Endocrinology and Metabolism, The Third Central Hospital of Tianjin, Tianjin Key Laboratory of Artificial Cells (TKL), Tianjin, China
| | - Fusheng Di
- Department of Endocrinology and Metabolism, The Third Central Hospital of Tianjin, Tianjin, China
- * E-mail:
| | - Qipeng Wang
- Department of Hemodialysis, The Fourth Central Hospital of Tianjin, Tianjin, China
| | - Jinshuang Shao
- Department of Endocrinology and Metabolism, The Third Central Hospital of Tianjin, Tianjin, China
| | - Lei Gao
- Department of Endocrinology and Metabolism, The Third Central Hospital of Tianjin, Tianjin, China
| | - Lu Wang
- Department of Endocrinology and Metabolism, The Third Central Hospital of Tianjin, Tianjin, China
| | - Qiang Li
- Department of Endocrinology and Metabolism, The Third Central Hospital of Tianjin, Tianjin, China
| | - Nali Li
- Department of Endocrinology and Metabolism, The Third Central Hospital of Tianjin, Tianjin, China
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Mikolasevic I, Milic S, Racki S, Zaputovic L, Stimac D, Radic M, Markic D, Orlic L. Nonalcoholic Fatty Liver Disease (NAFLD)-A New Cardiovascular Risk Factor in Peritoneal Dialysis Patients. Perit Dial Int 2015; 36:427-32. [PMID: 26475841 DOI: 10.3747/pdi.2014.00223] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 07/23/2015] [Indexed: 01/08/2023] Open
Abstract
UNLABELLED ♦ BACKGROUND Recent investigations indicated that nonalcoholic fatty liver disease (NAFLD), a hepatic component of metabolic syndrome (MS), is associated with an increased risk of cardiovascular disease (CVD). Accordingly, we were interested in exploring the frequency of NAFLD in peritoneal dialysis (PD) patients and analyzing factors in PD patients associated with NAFLD occurrence. In addition, we were interested in investigating whether NAFLD is associated with higher CVD risk in our PD patients. ♦ METHODS In the present cross-sectional study, we analyzed 58 PD patients. The controlled attenuation parameter (CAP) was used to detect and quantify liver steatosis with the help of transient elastography (TE) (FibroScan, Echosense SA, Paris, France). A carotid ultrasound was performed in all patients to measure carotid intimae media thickness (IMT) and plaque as surrogate measures of increased CVD risk, and we investigated their association with NAFLD. ♦ RESULTS Nonalcoholic fatty liver disease was present in 74.1% of PD patients. Peritoneal dialysis/nonalcoholic fatty liver disease patients had statistically greater daily (136.5 ± 62.6 vs 93.6 ± 36.1; p = 0.02) and monthly (4,095.3 ± 1,877.7 vs 2,806.6 ± 1,083.2; p = 0.02) glucose load in comparison to the non-NAFLD/PD patients. In the next step, we were interested in analyzing what demographic and clinical characteristics in our PD patients are associated with a higher NAFLD occurrence. Presence of diabetes mellitus (DM), arterial hypertension (AH), dyslipidemia, body mass index > 25 kg/m(2), and daily glucose load > 100 g were associated with NAFLD occurrence. Peritoneal dialysis patients with NAFLD showed more carotid atherosclerosis than PD patients without NAFLD. In addition, CAP values (as indicator of liver steatosis) showed strong positive association with IMT (r = 0.801; p < 0.0001). Nonalcoholic fatty liver disease was a strong predictor of carotid atherosclerosis in PD patients. ♦ CONCLUSION Nonalcoholic fatty liver disease is highly prevalent in PD patients. Peritoneal dialysis patients with NAFLD are at high risk of atherosclerosis. Assessment of NAFLD in PD patients may be helpful for CVD risk stratification.
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Affiliation(s)
- Ivana Mikolasevic
- Department of Nephrology, Dialysis and Kidney Transplantation, UHC Rijeka, Croatia Department of Gastroenterology, UHC Rijeka, Croatia
| | - Sandra Milic
- Department of Gastroenterology, UHC Rijeka, Croatia
| | - Sanjin Racki
- Department of Nephrology, Dialysis and Kidney Transplantation, UHC Rijeka, Croatia
| | | | - Davor Stimac
- Department of Gastroenterology, UHC Rijeka, Croatia
| | - Mladen Radic
- Department of Gastroenterology, UHC Rijeka, Croatia
| | | | - Lidija Orlic
- Department of Nephrology, Dialysis and Kidney Transplantation, UHC Rijeka, Croatia
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40
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Clarke JD, Dzierlenga AL, Nelson NR, Li H, Werts S, Goedken MJ, Cherrington NJ. Mechanism of Altered Metformin Distribution in Nonalcoholic Steatohepatitis. Diabetes 2015; 64:3305-13. [PMID: 26016715 PMCID: PMC4542448 DOI: 10.2337/db14-1947] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2014] [Accepted: 05/19/2015] [Indexed: 12/13/2022]
Abstract
Metformin is an antihyperglycemic drug that is widely prescribed for type 2 diabetes mellitus and is currently being investigated for the treatment of nonalcoholic steatohepatitis (NASH). NASH is known to alter hepatic membrane transporter expression and drug disposition similarly in humans and rodent models of NASH. Metformin is almost exclusively eliminated through the kidney primarily through active secretion mediated by Oct1, Oct2, and Mate1. The purpose of this study was to determine how NASH affects kidney transporter expression and metformin pharmacokinetics. A single oral dose of [(14)C]metformin was administered to C57BL/6J (wild type [WT]) and diabetic ob/ob mice fed either a control diet or a methionine- and choline-deficient (MCD) diet. Metformin plasma concentrations were slightly increased in the WT/MCD and ob/control groups, whereas plasma concentrations were 4.8-fold higher in ob/MCD mice compared with WT/control. The MCD diet significantly increased plasma half-life and mean residence time and correspondingly decreased oral clearance in both genotypes. These changes in disposition were caused by ob/ob- and MCD diet-specific decreases in the kidney mRNA expression of Oct2 and Mate1, whereas Oct1 mRNA expression was only decreased in ob/MCD mice. These results indicate that the diabetic ob/ob genotype and the MCD disease model alter kidney transporter expression and alter the pharmacokinetics of metformin, potentially increasing the risk of drug toxicity.
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Affiliation(s)
- John D Clarke
- Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ
| | - Anika L Dzierlenga
- Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ
| | - Nicholas R Nelson
- Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ
| | - Hui Li
- Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ
| | - Samantha Werts
- Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ
| | - Michael J Goedken
- Translational Sciences, Research Pathology Services, Rutgers University, New Brunswick, NJ
| | - Nathan J Cherrington
- Department of Pharmacology and Toxicology, The University of Arizona, Tucson, AZ
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Usefulness of liver test and controlled attenuation parameter in detection of nonalcoholic fatty liver disease in patients with chronic renal failure and coronary heart disease. Wien Klin Wochenschr 2015; 127:451-8. [PMID: 25854911 DOI: 10.1007/s00508-015-0757-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Accepted: 01/27/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND In recent years, nonalcoholic fatty liver disease (NAFLD) was recognized as an important factor in chronic kidney disease (CKD) pathogenesis. The concentrations of serum aminotransferases in both chronic dialysis and chronic renal failure (CRF) patients most commonly fall within the lower end of the range of normal values. The aim of the present study was to investigate the usefulness of four liver tests and four biological scores in detection of NAFLD in comparison with transient elastography (TE) findings in different groups of patients. METHODS The study was cross-sectional analysis collected data from a single tertiary care center. Of 202 patents there were 52 patients with CKD, 50 patients with end-stage renal disease (ESRD) treated with haemodialysis (HD), 50 renal transplant recipients (RTRs) and 50 patients with proven coronary heart disease (CHD). Fifty sex- and age-matched individuals without NAFLD and with normal liver and kidney function tests served as controls. With the help of TE (FibroScan®, Echosense SA, Paris, France), liver stiffness was selected as the parameter to quantify liver fibrosis and Controlled Attenuation Parameter (CAP) was used to detect and quantify liver steatosis. RESULTS According to the CAP findings 76.9 %CKD patients, 82 %HD patients, 74 %RTRs and 69.1 % CHD patients had CAP > 238 dB.m(-1) and thus by definition NAFLD. We have found that ALT, AST and GGT levels were positively correlated with CAP values while ALT and AST showed positive correlation with liver stiffness acquired with TE only in CHD patients. According to TE findings APRI (AUC 0.796) and FIB-4 (AUC 0.790) scores were correlated with the presence of fibrosis, while HIS score was correlated with the presence of steatosis (AUC 0.867) only in CHD patients. CONCLUSION Liver tests and biological scores are not useful for NAFLD detection in CRF patients. TE with CAP provides the opportunity of noninvasive screening for NAFLD as well as liver fibrosis in patients with CRF.
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Clarke JD, Cherrington NJ. Nonalcoholic steatohepatitis in precision medicine: Unraveling the factors that contribute to individual variability. Pharmacol Ther 2015; 151:99-106. [PMID: 25805597 DOI: 10.1016/j.pharmthera.2015.03.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Accepted: 03/17/2015] [Indexed: 01/14/2023]
Abstract
There are numerous factors in individual variability that make the development and implementation of precision medicine a challenge in the clinic. One of the main goals of precision medicine is to identify the correct dose for each individual in order to maximize therapeutic effect and minimize the occurrence of adverse drug reactions. Many promising advances have been made in identifying and understanding how factors such as genetic polymorphisms can influence drug pharmacokinetics (PK) and contribute to variable drug response (VDR), but it is clear that there remain many unidentified variables. Underlying liver diseases such as nonalcoholic steatohepatitis (NASH) alter absorption, distribution, metabolism, and excretion (ADME) processes and must be considered in the implementation of precision medicine. There is still a profound need for clinical investigation into how NASH-associated changes in ADME mediators, such as metabolism enzymes and transporters, affect the pharmacokinetics of individual drugs known to rely on these pathways for elimination. This review summarizes the key PK factors in individual variability and VDR and highlights NASH as an essential underlying factor that must be considered as the development of precision medicine advances. A multifactorial approach to precision medicine that considers the combination of two or more risk factors (e.g. genetics and NASH) will be required in our effort to provide a new era of benefit for patients.
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Affiliation(s)
- John D Clarke
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ 85721, United States
| | - Nathan J Cherrington
- Department of Pharmacology and Toxicology, University of Arizona, Tucson, AZ 85721, United States.
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Mikolasevic I, Stimac D, Racki S, Zaputovic L, Devcic B, Jelic I, Lukenda V, Radic M, Orlic L. Relationship between non-alcoholic fatty liver disease and MIA syndrome. Hemodial Int 2015; 19:472-81. [PMID: 25688578 DOI: 10.1111/hdi.12280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is an important factor in the pathogenesis of cardiovascular diseases in the general population. Recently, it has been shown that NAFLD is highly prevalent in chronic kidney disease (CKD) patients. Ninety-four hemodialysis (HD) patients were followed for a time period of 18 months or until death. Patient's survival rate was determined in relation to their nutritional and inflammatory state, and the presence of NAFLD. We also investigated the association between the presence of NAFLD and the patients' nutritional and inflammatory state. We did not find any significant association between the clinical parameters of nutritional status and the mortality rate. However, the mortality rate was statistically significantly higher in patients with low serum albumin and high high-sensitive C-reactive protein (hs-CRP) levels and in those who had NAFLD. Surprisingly, patients who had received enteral nutrition did not have a better survival rate. The severity of liver steatosis was negatively correlated with the serum albumin levels, while it was positively correlated with hs-CRP values. Furthermore, serum albumin levels showed a negative correlation with hs-CRP levels. We did not find any significant association between the presence of NAFLD and clinical parameters of nutrition. We have shown that NAFLD could be one more possible example of reverse epidemiology in patients undergoing HD. NAFLD may be the missing link that causally ties malnutrition, inflammation, and atherosclerosis syndrome to the morbidity and mortality in patients undergoing HD.
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Affiliation(s)
- Ivana Mikolasevic
- Department of Nephrology, Dialysis and Kidney Transplantation, University Hospital Center Rijeka, Rijeka, Croatia
| | - Davor Stimac
- Department of Gastroenterology, University Hospital Center Rijeka, Rijeka, Croatia
| | - Sanjin Racki
- Department of Nephrology, Dialysis and Kidney Transplantation, University Hospital Center Rijeka, Rijeka, Croatia
| | - Luka Zaputovic
- Department of Cardiology, University Hospital Center Rijeka, Rijeka, Croatia
| | - Bosiljka Devcic
- Department of Nephrology, Dialysis and Kidney Transplantation, University Hospital Center Rijeka, Rijeka, Croatia
| | - Ita Jelic
- Department of Nephrology, Dialysis and Kidney Transplantation, University Hospital Center Rijeka, Rijeka, Croatia
| | - Vesna Lukenda
- Department of Internal Medicine, General Hospital "Dr. Josip Bencevic", Slavonski Brod, Croatia
| | - Mladen Radic
- Department of Gastroenterology, University Hospital Center Rijeka, Rijeka, Croatia
| | - Lidija Orlic
- Department of Nephrology, Dialysis and Kidney Transplantation, University Hospital Center Rijeka, Rijeka, Croatia
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Nonalcoholic fatty liver disease (NAFLD) – Is it a new marker of hyporesponsiveness to recombinant human erythropoietin in patients that are on chronic hemodialysis? Med Hypotheses 2014; 83:798-801. [DOI: 10.1016/j.mehy.2014.10.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2014] [Accepted: 10/15/2014] [Indexed: 12/13/2022]
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45
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Nonalcoholic fatty liver disease and the renin-angiotensin system blockers in the patients with chronic kidney disease. Wien Klin Wochenschr 2014; 127:355-62. [DOI: 10.1007/s00508-014-0661-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2014] [Accepted: 10/20/2014] [Indexed: 12/11/2022]
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Mikolasevic I, Racki S, Zaputovic L, Lukenda V, Sladoje-Martinovic B, Orlic L. Nonalcoholic Fatty Liver Disease (NAFLD) And Cardiovascular Risk In Renal Transplant Recipients. Kidney Blood Press Res 2014; 39:308-14. [DOI: 10.1159/000355808] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2014] [Indexed: 11/19/2022] Open
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Mikolasevic I, Lukenda V, Racki S, Milic S, Sladoje-Martinovic B, Orlic L. Nonalcoholic fatty liver disease (NAFLD) - a new factor that interplays between inflammation, malnutrition, and atherosclerosis in elderly hemodialysis patients. Clin Interv Aging 2014; 9:1295-303. [PMID: 25143715 PMCID: PMC4132229 DOI: 10.2147/cia.s65382] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background/aim In the past decade, in most regions of the world, an increasing number of adults aged 65 years and older were started on renal replacement therapy each year. In contrast to the general population for whom overnutrition or obesity is associated with increased cardiovascular risk, for patients who are maintained on hemodialysis (HD), malnutrition and malnutrition-inflammation complex syndrome are associated with poor outcome. In recent years, nonalcoholic fatty liver disease (NAFLD) has been considered to be the liver manifestation of metabolic syndrome, and the development of NAFLD is strongly associated with all components of metabolic syndrome (arterial hypertension, dyslipidemia, obesity, and diabetes mellitus type 2) in the general population. The primary end point of this study was to determine the patient’s survival in relation to nutritional and inflammatory state and the presence or absence of NAFLD. The secondary end point of this analysis was the association among NAFLD and various clinical and laboratory data, with the nutritional and inflammatory state of our elderly HD patients. Methods Using a single-center, prospective, cohort study design, we followed the progress of 76 patients who were ≥65 years and treated with chronic HD for at least 6 months, at the Department of Nephrology, Dialysis and Transplantation. All patients were followed for a minimum of 18 months or until death. Survival was defined as the time from study initiation to death (or end of study, if still alive). Results The main findings of our study were a remarkable positive correlation between NAFLD and high-sensitivity C-reactive protein (hs-CRP) (r=0.659; P<0.0001) and consequent negative correlation with the nutritional parameter, serum albumin (r=−0.321; P=0.004). Interestingly, we showed that in contrast to the general population, where NAFLD is associated with obesity, in the present study, there was no statistically significant association between NAFLD and overnutrition in elderly HD patients. Furthermore, the presence of NAFLD, low serum albumin levels, and high hs-CRP were strong predictors of poor outcome in our elderly HD patients. Conclusion Our results indicated that NAFLD probably interplays between inflammation, malnutrition, and atherosclerosis in elderly HD patients. NAFLD could be a new factor that contributes to type 2 malnutrition in elderly HD patients, who may be amenable to adequate nutritional and HD support.
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Affiliation(s)
- Ivana Mikolasevic
- Department of Nephrology, Dialysis and Transplantation, Rijeka University Hospital Center, Rijeka, Croatia
| | - Vesna Lukenda
- Department of Internal Medicine, Dr Josip Bencevic General Hospital, Slavonski Brod, Croatia
| | - Sanjin Racki
- Department of Nephrology, Dialysis and Transplantation, Rijeka University Hospital Center, Rijeka, Croatia
| | - Sandra Milic
- Department of Gastroenterology, Rijeka University Hospital Center, Rijeka, Croatia
| | - Branka Sladoje-Martinovic
- Department of Nephrology, Dialysis and Transplantation, Rijeka University Hospital Center, Rijeka, Croatia
| | - Lidija Orlic
- Department of Nephrology, Dialysis and Transplantation, Rijeka University Hospital Center, Rijeka, Croatia
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Targher G, Chonchol MB, Byrne CD. CKD and nonalcoholic fatty liver disease. Am J Kidney Dis 2014; 64:638-52. [PMID: 25085644 DOI: 10.1053/j.ajkd.2014.05.019] [Citation(s) in RCA: 140] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 05/30/2014] [Indexed: 02/06/2023]
Abstract
The possible link between nonalcoholic fatty liver disease and chronic kidney disease (CKD) recently has attracted considerable scientific interest. Accumulating clinical evidence indicates that the presence and severity of nonalcoholic fatty liver disease is associated significantly with CKD (defined as decreased estimated glomerular filtration rate and/or proteinuria) and that nonalcoholic fatty liver disease predicts the development and progression of CKD, independently of traditional cardiorenal risk factors. Experimental evidence also suggests that nonalcoholic fatty liver disease itself may exacerbate systemic and hepatic insulin resistance, cause atherogenic dyslipidemia, and release a variety of proinflammatory, procoagulant, pro-oxidant, and profibrogenic mediators that play important roles in the development and progression of CKD. However, despite the growing evidence linking nonalcoholic fatty liver disease with CKD, it has not been definitively established whether a causal association exists. The clinical implication for these findings is that patients with nonalcoholic fatty liver disease may benefit from more intensive surveillance or early treatment interventions to decrease the risk of CKD. In this review, we discuss the evidence linking nonalcoholic fatty liver disease with CKD and the putative mechanisms by which nonalcoholic fatty liver disease contributes to kidney damage. We also briefly discuss current treatment options for this increasingly prevalent disease that is likely to have an important future impact on the global burden of disease.
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Affiliation(s)
- Giovanni Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy.
| | - Michel B Chonchol
- Division of Renal Diseases and Hypertension, University of Colorado Denver, Aurora, CO
| | - Christopher D Byrne
- Nutrition and Metabolism, Faculty of Medicine, University of Southampton, Southampton, United Kingdom; Southampton National Institute for Health Research Biomedical Research Centre, Southampton, United Kingdom
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Mikolasevic I, Orlic L, Milic S, Zaputovic L, Lukenda V, Racki S. Non-alcoholic fatty liver disease proven by transient elastography in hemodialysis patients: is it a new risk factor for adverse cardiovascular events? Blood Purif 2014; 37:259-65. [PMID: 24993140 DOI: 10.1159/000360270] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Accepted: 02/02/2014] [Indexed: 12/17/2022]
Abstract
BACKGROUND/AIMS Cardiovascular diseases (CVD) are the leading cause of mortality in hemodialysis (HD) patients. Recently, non-alcoholic fatty liver disease (NAFLD) has been recognized as a new risk factor for adverse CVD events in the general population. Our aim was to analyze the incidence of NAFLD in HD patients by using transient elastography and to analyze whether the presence of NAFLD is associated with a higher CVD risk in HD patients. METHODS The subjects were 72 HD patients and 50 sex- and age-matched controls. RESULTS NAFLD was found in 52.8% of HD patients. HD patients with NAFLD showed more carotid atherosclerosis and more adverse CVD events than HD patients without NAFLD and control subjects. CONCLUSION We showed for the first time that HD patients have a high prevalence of NAFLD. HD patients with NAFLD show an advanced carotid atherosclerosis. Detection of NAFLD by transient elastography should alert to the existence of an increased cardiovascular risk in HD patients.
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Affiliation(s)
- Ivana Mikolasevic
- Division of Internal Medicine, Department of Nephrology and Dialysis, University Hospital Center Rijeka, Rijeka, Croatia
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Mikolasevic I, Racki S, Lukenda V, Milic S, Pavletic-Persic M, Orlic L. Nonalcoholic Fatty Liver Disease in Renal Transplant Recipients Proven by Transient Elastography. Transplant Proc 2014; 46:1347-52. [DOI: 10.1016/j.transproceed.2014.02.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 01/27/2014] [Accepted: 02/27/2014] [Indexed: 12/13/2022]
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