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Gîlcă-Blanariu GE, Budur DS, Mitrică DE, Gologan E, Timofte O, Bălan GG, Olteanu VA, Ștefănescu G. Advances in Noninvasive Biomarkers for Nonalcoholic Fatty Liver Disease. Metabolites 2023; 13:1115. [PMID: 37999211 PMCID: PMC10672868 DOI: 10.3390/metabo13111115] [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: 09/14/2023] [Revised: 10/15/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) currently represents one of the most common liver diseases worldwide. Early diagnosis and disease staging is crucial, since it is mainly asymptomatic, but can progress to nonalcoholic steatohepatitis (NASH) or cirrhosis or even lead to the development of hepatocellular carcinoma. Over time, efforts have been put into developing noninvasive diagnostic and staging methods in order to replace the use of a liver biopsy. The noninvasive methods used include imaging techniques that measure liver stiffness and biological markers, with a focus on serum biomarkers. Due to the impressive complexity of the NAFLD's pathophysiology, biomarkers are able to assay different processes involved, such as apoptosis, fibrogenesis, and inflammation, or even address the genetic background and "omics" technologies. This article reviews not only the currently validated noninvasive methods to investigate NAFLD but also the promising results regarding recently discovered biomarkers, including biomarker panels and the combination of the currently validated evaluation methods and serum markers.
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Affiliation(s)
- Georgiana-Emmanuela Gîlcă-Blanariu
- Gastroenterology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania; (G.-E.G.-B.); (D.E.M.); (E.G.); (O.T.); (G.G.B.); (V.A.O.)
- Department of Gastroenterology, “Sf Spiridon” County Clinical Emergency Hospital, 100115 Iași, Romania
| | - Daniela Simona Budur
- Gastroenterology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania; (G.-E.G.-B.); (D.E.M.); (E.G.); (O.T.); (G.G.B.); (V.A.O.)
| | - Dana Elena Mitrică
- Gastroenterology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania; (G.-E.G.-B.); (D.E.M.); (E.G.); (O.T.); (G.G.B.); (V.A.O.)
- Department of Gastroenterology, “Sf Spiridon” County Clinical Emergency Hospital, 100115 Iași, Romania
| | - Elena Gologan
- Gastroenterology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania; (G.-E.G.-B.); (D.E.M.); (E.G.); (O.T.); (G.G.B.); (V.A.O.)
| | - Oana Timofte
- Gastroenterology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania; (G.-E.G.-B.); (D.E.M.); (E.G.); (O.T.); (G.G.B.); (V.A.O.)
- Department of Gastroenterology, “Sf Spiridon” County Clinical Emergency Hospital, 100115 Iași, Romania
| | - Gheorghe Gh Bălan
- Gastroenterology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania; (G.-E.G.-B.); (D.E.M.); (E.G.); (O.T.); (G.G.B.); (V.A.O.)
- Department of Gastroenterology, “Sf Spiridon” County Clinical Emergency Hospital, 100115 Iași, Romania
| | - Vasile Andrei Olteanu
- Gastroenterology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania; (G.-E.G.-B.); (D.E.M.); (E.G.); (O.T.); (G.G.B.); (V.A.O.)
- Department of Gastroenterology, “Sf Spiridon” County Clinical Emergency Hospital, 100115 Iași, Romania
| | - Gabriela Ștefănescu
- Gastroenterology Department, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iași, Romania; (G.-E.G.-B.); (D.E.M.); (E.G.); (O.T.); (G.G.B.); (V.A.O.)
- Department of Gastroenterology, “Sf Spiridon” County Clinical Emergency Hospital, 100115 Iași, Romania
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Tabaeian SP, Mahmoudi T, Rezamand G, Nobakht H, Dabiri R, Farahani H, Asadi A, Zali MR. RESISTIN GENE POLYMORPHISM AND NONALCOHOLIC FATTY LIVER DISEASE RISK. ARQUIVOS DE GASTROENTEROLOGIA 2022; 59:483-487. [PMID: 36515343 DOI: 10.1590/s0004-2803.202204000-86] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/01/2022] [Indexed: 11/16/2022]
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is a chronic liver disease and one of the main global health issues in which liver fat surpasses 5% of hepatocytes without the secondary causes of lipid accumulation or excessive alcohol consumption. Owing to the link between NAFLD and insulin resistance (IR) and obesity and the role of resistin in theses metabolic disorders, we explored the possible association between resistin gene (RETN) variant and NAFLD. METHODS A total of 308 unrelated subjects, including 152 patients with biopsy-proven NAFLD and 156 controls were enrolled and genotyped for the RETN gene rs3745367 variant using PCR-RFLP method. RESULTS NAFLD patients had higher liver enzymes, systolic blood pressure (SBP), and diastolic blood pressure (DBP) than the controls (P<0.001). However, we observed no significant difference in genotype and allele frequencies between the cases with NAFLD and the controls for the RETN rs3745367 polymorphism either before or after adjustment for confounding factors including age, BMI, sex, smoking status, SBP, and DBP. CONCLUSION To our knowledge, this study is the first one that investigated the association between RETN gene rs3745367 variant and biopsy-proven NAFLD. Our findings do not support a role for this gene polymorphism in NAFLD risk in Iranian population; nonetheless, they need to be further investigated in other populations.
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Affiliation(s)
- Seidamir Pasha Tabaeian
- Department of Internal Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Touraj Mahmoudi
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Gholamreza Rezamand
- Department of Internal Medicine, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.,Colorectal Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Nobakht
- Internal Medicine Department, Semnan University of Medical Sciences, Semnan, Iran
| | - Reza Dabiri
- Internal Medicine Department, Semnan University of Medical Sciences, Semnan, Iran
| | - Hamid Farahani
- Department of Physiology and Pharmacology, School of Medicine, Qom University of Medical Sciences, Qom, Iran
| | - Asadollah Asadi
- Department of Biology, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Mohammad Reza Zali
- Gastroenterology and Liver Diseases Research Center, Research Institute for Gastroenterology and Liver Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Adipokines in Non-Alcoholic Fatty Liver Disease: Are We on the Road toward New Biomarkers and Therapeutic Targets? BIOLOGY 2022; 11:biology11081237. [PMID: 36009862 PMCID: PMC9405285 DOI: 10.3390/biology11081237] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/16/2022] [Accepted: 08/17/2022] [Indexed: 12/04/2022]
Abstract
Simple Summary Non-alcoholic fatty liver disease (NAFLD) is an unmet medical need due to its increasingly high incidence, severe clinical consequences, and the absence of feasible diagnostic tools and effective drugs. This review summarizes the preclinical and clinical data on adipokines, cytokine-like hormones secreted by adipose tissue, and NAFLD. The aim is to establish the potential of adipokines as diagnostic and prognostic biomarkers, as well as their potential as therapeutic targets for NAFLD. The limitations of current research are also discussed, and future perspectives are outlined. Abstract Non-alcoholic fatty liver disease (NAFLD) has become the major cause of chronic hepatic illness and the leading indication for liver transplantation in the future decades. NAFLD is also commonly associated with other high-incident non-communicable diseases, such as cardiovascular complications, type 2 diabetes, and chronic kidney disease. Aggravating the socio-economic impact of this complex pathology, routinely feasible diagnostic methodologies and effective drugs for NAFLD management are unavailable. The pathophysiology of NAFLD, recently defined as metabolic associated fatty liver disease (MAFLD), is correlated with abnormal adipose tissue–liver axis communication because obesity-associated white adipose tissue (WAT) inflammation and metabolic dysfunction prompt hepatic insulin resistance (IR), lipid accumulation (steatosis), non-alcoholic steatohepatitis (NASH), and fibrosis. Accumulating evidence links adipokines, cytokine-like hormones secreted by adipose tissue that have immunometabolic activity, with NAFLD pathogenesis and progression; however, much uncertainty still exists. Here, the current knowledge on the roles of leptin, adiponectin, ghrelin, resistin, retinol-binding protein 4 (RBP4), visfatin, chemerin, and adipocyte fatty-acid-binding protein (AFABP) in NAFLD, taken from preclinical to clinical studies, is overviewed. The effect of therapeutic interventions on adipokines’ circulating levels are also covered. Finally, future directions to address the potential of adipokines as therapeutic targets and disease biomarkers for NAFLD are discussed.
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A Decreased Response to Resistin in Mononuclear Leukocytes Contributes to Oxidative Stress in Nonalcoholic Fatty Liver Disease. Dig Dis Sci 2022; 67:3006-3016. [PMID: 34156590 DOI: 10.1007/s10620-021-07105-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 06/09/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Deregulation of immune response and oxidative stress contribute to nonalcoholic fatty liver disease (NAFLD) pathogenesis. Resistin is a physiological modulator of inflammation and redox homeostasis of different cell types. Increased resistin serum concentration and the direct association between resistin hepatic expression and NAFLD severity suggest that resistin participates in NAFLD pathogenesis. AIMS To evaluate resistin-induced regulation of redox homeostasis in mononuclear leukocytes from NAFLD patients and controls. METHODS We evaluated basal and resistin-mediated modulation of reactive oxygen species (ROS) and glutathione content by flow cytometry, and antioxidant enzyme activities by spectrophotometry. RESULTS Peripheral blood mononuclear cells (PBMC) from NAFLD patients showed higher ROS content and glutathione peroxidase activity and lower glutathione content, superoxide dismutase and glutathione reductase activities than control PBMC. Resistin decreased ROS levels and superoxide dismutase activity and increased glutathione reductase and catalase activities in PBMC from controls but not from patients. Resistin decreased glutathione content in PBMC from control and NAFLD patients, with greater effect on patient cells. Basal and resistin-modulated ROS levels were directly associated with obesity-related risk factors for NAFLD. Hepatic myeloid cells and T-lymphocytes from NAFLD patients showed higher basal ROS content than cells from controls. Resistin decreased ROS levels in hepatic T-lymphocytes from controls but not from patients. CONCLUSIONS Resistin regulates redox homeostasis in mononuclear leukocytes. A decreased response to resistin in leukocytes from NAFLD patients is associated with an impaired redox homeostasis.
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Ghezelbash B, Shahrokhi N, Khaksari M, Asadikaram G, Shahrokhi M, Shirazpour S. Protective Roles of Shilajit in Modulating Resistin, Adiponectin, and Cytokines in Rats with Non-alcoholic Fatty Liver Disease. Chin J Integr Med 2022; 28:531-537. [PMID: 35258780 DOI: 10.1007/s11655-022-3307-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/26/2021] [Indexed: 02/06/2023]
Abstract
OBJECTIVE To evaluate the effect of Shilajit, a medicine of Ayurveda, on the serum changes in cytokines and adipokines caused by non-alcoholic fatty liver disease (NAFLD). METHODS After establishing fatty liver models by feeding a high-fat diet (HFD) for 12 weeks, 35 Wistar male rats were randomly divided into 5 groups, including control (standard diet), Veh (HFD + vehicle), high-dose Shilajit [H-Sh, HFD + 250 mg/(kg·d) Shilajit], low-dose Shilajit [L-Sh, HFD + 150 mg/(kg·d) Shilajit], and pioglitazone [HFD + 10 mg/(kg·d) pioglitazone] groups, 7 rats in each group. After 2-week of gavage administration, serum levels of glucose, insulin, interleukin 1beta (IL-1β), IL-6, IL-10, tumor necrosis factor-alpha (TNF-α), adiponectin, and resistin were measured, and insulin resistance index (HOMA-IR) was calculated. RESULTS After NAFLD induction, the serum level of IL-10 significantly increased and serum IL-1β, TNF-α levels significantly decreased by injection of both doses of Shilajit and pioglitazone (P<0.05). Increases in serum glucose level and homeostasis model of HOMA-IR were reduced by L-Sh and H-Sh treatment in NAFLD rats (P<0.05). Both doses of Shilajit increased adiponectin and decreased serum resistin levels (P<0.05). CONCLUSION The probable protective role of Shilajit in NAFLD model rats may be via modulating the serum levels of IL-1β, TNF-α, IL-10, adipokine and resistin, and reducing of HOMA-IR.
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Affiliation(s)
- Baran Ghezelbash
- Physiology Research Center, Kerman University of Medical Sciences, Kerman, 7616914115, Iran
| | - Nader Shahrokhi
- Physiology Research Center, Kerman University of Medical Sciences, Kerman, 7616914115, Iran.
| | - Mohammad Khaksari
- Endocrinology, and Metabolism Research Center, Kerman University of Medical Sciences, Kerman, 7616914115, Iran
| | - Gholamreza Asadikaram
- Department of Biochemistry, School of Medicine, Kerman University of Medical Sciences, Kerman, 7616914115, Iran
| | - Maryam Shahrokhi
- Department of Medical Science, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, 713414336, Iran
| | - Sara Shirazpour
- Department of Physiology and Pharmacology, Faculty of Medicine, Kerman University of Medical Sciences, Kerman, 7616914115, Iran
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Hua K, Wang M, Jin Y, Gao Y, Luo R, Bi D, Zhou R, Jin H. P38 MAPK pathway regulates the expression of resistin in porcine alveolar macrophages via Ets2 during Haemophilus parasuis stimulation. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2022; 128:104327. [PMID: 34863954 DOI: 10.1016/j.dci.2021.104327] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 11/30/2021] [Accepted: 11/30/2021] [Indexed: 06/13/2023]
Abstract
Haemophilus parasuis is a widespread bacterial pathogen causing acute systemic inflammation and leading to the sudden death of piglets. Resistin, a multifunctional peptide hormone previously demonstrated to influence the inflammation in porcine, was extremely increased in H. parasuis-infected tissues. However, the mechanism of resistin expression regulation in porcine, especially during pathogen infection, remains unclear. In the present study, we explored for the first time the transcription factor and signaling pathway mediating the expression of pig resistin during H. parasuis stimulation. We found that H. parasuis induced the expression of pig resistin in a time- and dose-dependent manner via the transcription factor Ets2 in porcine alveolar macrophages during H. parasuis stimulation. Moreover, the expression of Ets2 was mediated by the activation of the p38 MAPK pathway induced by H. parasuis, thus promoting resistin production. These results revealed a novel view of the molecular mechanism of pig resistin production during acute inflammation induced by pathogenic bacteria.
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Affiliation(s)
- Kexin Hua
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Mingyang Wang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Yishun Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Yuan Gao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Rui Luo
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Dingren Bi
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Rui Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China
| | - Hui Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China; College of Veterinary Medicine, Huazhong Agricultural University, China; Hubei Provincial Key Laboratory of Preventive Veterinary Medicine, Huazhong Agricultural University, China.
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Mirzaei A, Asal A, Seidkhani-Nahal A, Noori-Zadeh A. A systematic review and meta-analysis of serum resistin level and its relation to HOMA-IR score using meta-regression in nonalcoholic fatty liver disease patients. MEDITERRANEAN JOURNAL OF NUTRITION AND METABOLISM 2021. [DOI: 10.3233/mnm-210538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Non-alcoholic fatty liver disease (NAFLD) comorbidity with adipose tissue dysfunction is not new and studies have focused on how adipose tissue influences NAFLD pathophysiology. OBJECTIVE: Quantification of nature and magnitude of the association between serum resistin and also insulin resistance, by calculating pooled Homeostatic Model Assessment for Insulin Resistance (HOMA-IR) score, with NAFLD pathophysiology was the objective of the current study. METHODS: Using systematic review and meta-analysis and standardized mean difference (SMD) as the effect size, the levels of resistin and HOMA-IR scores have been investigated in NAFLD subjects in comparison with controls in the case-control studies using random-effects models. RESULTS: This meta-analysis retrieved a total number of 665 and 522 cases and 671 and 555 control subjects until May 2020 for serum levels of resistin and HOMA-IR score until May 2020. The final analyses demonstrated that pooled SMD of resistin and HOMA-IR score was 0.687 (95% confidence interval, 0.070–1.304) and 1.368 (95% confidence interval, 1.080–1.655); respectively. Moreover, the p-value for the test of significance for each pooled SMD was examined by the z-test and calculated as 0.029 and 0.000 for resistin and HOMA-IR score (clearly considered as statistically significant). CONCLUSION: Based on the findings, the HOMA-IR score and the serum levels of resistin in NAFLD subjects are associated with disease pathogenesis.
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Affiliation(s)
- Asad Mirzaei
- Department of Medical Parasitology, Faculty of Paramedicine, Ilam University of Medical Sciences, Ilam, Iran
- Zoonotic Diseases Research Center, Ilam University of Medical Sciences, Ilam, Iran
| | - Asma Asal
- Student Research Committee, Ilam University of Medical Sciences, Ilam, Iran
| | - Ali Seidkhani-Nahal
- Department of Clinical Biochemistry, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Ali Noori-Zadeh
- Student Research Committee, Ilam University of Medical Sciences, Ilam, Iran
- Department of Clinical Biochemistry, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
- Department of Clinical Biochemistry, Faculty of Allied Medical Sciences, Ilam University of Medical Sciences, Ilam, Iran
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Han D, Chen J, Liu S, Zhang Z, Zhao Z, Jin W, Xin Y. Serum Resistin Levels in Adult Patients with Nonalcoholic Fatty Liver Disease: A Systematic Review and Meta-analysis. J Clin Transl Hepatol 2021; 9:484-493. [PMID: 34447677 PMCID: PMC8369026 DOI: 10.14218/jcth.2021.00018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/19/2021] [Accepted: 04/09/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND AND AIMS Previous studies reported that serum resistin levels were remarkably changed in patients with nonalcoholic fatty liver disease (NAFLD) but the conclusions were inconsistent. The aim of this study was to investigate accurate serum resistin levels in adult patients with NAFLD. METHODS A complete literature research was conducted in the PubMed, Embase, and Cochrane Library databases, and all the available studies up to 7 May 2020 were reviewed. The pooled standardized mean difference (SMD) values were calculated to investigate the serum resistin levels in patients with NAFLD and healthy controls. RESULTS A total of 28 studies were included to investigate the serum resistin levels in patients with NAFLD. Patients with NAFLD had higher serum resistin levels than controls (SMD=0.522, 95% confidence interval [CI]: 0.004-1.040, I 2=95.9%). Patients with nonalcoholic steatohepatitis (NASH) had lower serum resistin levels than the healthy controls (SMD=-0.44, 95% CI: -0.83-0.55, I 2=74.5%). In addition, no significant difference of serum resistin levels was observed between patients with NAFL and healthy controls (SMD=-0.34, 95% CI: -0.91-0.23, I 2=79.6%) and between patients with NAFL and NASH (SMD=0.15, 95% CI: -0.06-0.36, I 2=0.00%). Furthermore, subgroup and sensitivity analyses suggested that heterogeneity did not affect the results of meta-analysis. CONCLUSIONS This meta-analysis investigated the serum resistin levels in adult patients with NAFLD comprehensively. Patients with NAFLD had higher serum resistin levels and patients with NASH had lower serum resistin levels than healthy controls. Serum resistin could serve as a potential biomarker to predict the development risk of NAFLD.
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Affiliation(s)
- Dongli Han
- Department of Infectious Disease, Qingdao Municipal Hospital, Dalian Medical University, Dalian, Liaoning, China
| | - Jie Chen
- Qingdao City Shinan District Centers for Disease Control and Prevention, Qingdao, Shandong, China
| | - Shousheng Liu
- Clinical Research Center, Qingdao Municipal Hospital, Qingdao, Shandong, China
| | - Zengzhi Zhang
- Qingdao City Shinan District Centers for Disease Control and Prevention, Qingdao, Shandong, China
| | - Zhenzhen Zhao
- Clinical Research Center, Qingdao Municipal Hospital, Qingdao, Shandong, China
| | - Wenwen Jin
- Department of Infectious Disease, Qingdao Municipal Hospital, Dalian Medical University, Dalian, Liaoning, China
- Correspondence to: Yongning Xin and Wenwen Jin, Department of Infectious Disease, Qingdao Municipal Hospital, 1 Jiaozhou Road, Qingdao, Shandong 266011, China. Tel: +86-532-82789463, Fax: +86-532-85968434, E-mail: (YX) or (WJ)
| | - Yongning Xin
- Department of Infectious Disease, Qingdao Municipal Hospital, Dalian Medical University, Dalian, Liaoning, China
- Digestive Disease Key Laboratory of Qingdao, Qingdao, Shandong, China
- Correspondence to: Yongning Xin and Wenwen Jin, Department of Infectious Disease, Qingdao Municipal Hospital, 1 Jiaozhou Road, Qingdao, Shandong 266011, China. Tel: +86-532-82789463, Fax: +86-532-85968434, E-mail: (YX) or (WJ)
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Deb A, Deshmukh B, Ramteke P, Bhati FK, Bhat MK. Resistin: A journey from metabolism to cancer. Transl Oncol 2021; 14:101178. [PMID: 34293684 PMCID: PMC8319804 DOI: 10.1016/j.tranon.2021.101178] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 06/23/2021] [Accepted: 07/09/2021] [Indexed: 12/11/2022] Open
Abstract
Resistin levels have been associated with several pathological disorders such as metabolic disorders, cancers etc. Resistin exists in three isoforms namely RELM-α, β and γ. High resistin level activates inflammatory pathways, promotes metabolic disorders and is associated with carcinogenesis. Increase in the resistin level impairs the therapeutic response by inducing stemness or resistance, in cancer cells. Conventional drugs which alter resistin level could have therapeutic implications in several pathological disorders.
Resistin, a small secretory molecule, has been implicated to play an important role in the development of insulin resistance under obese condition. For the past few decades, it has been linked to various cellular and metabolic functions. It has been associated with diseases like metabolic disorders, cardiovascular diseases and cancers. Numerous clinical studies have indicated an increased serum resistin level in pathological disorders which have been reported to increase mortality rate in comparison to low resistin expressing subjects. Various molecular studies suggest resistin plays a pivotal role in proliferation, metastasis, angiogenesis, inflammation as well as in regulating metabolism in cancer cells. Therefore, understanding the role of resistin and elucidating its’ associated molecular mechanism will give a better insight into the management of these disorders. In this article, we summarize the diverse roles of resistin in pathological disorders based on the available literature, clinicopathological data, and a compiled study from various databases. The article mainly provides comprehensive information of its role as a target in different treatment modalities in pre as well as post-clinical studies.
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Affiliation(s)
- Ankita Deb
- National Centre for Cell Science, Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | - Bhavana Deshmukh
- National Centre for Cell Science, Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | - Pranay Ramteke
- National Centre for Cell Science, Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | - Firoz Khan Bhati
- National Centre for Cell Science, Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India
| | - Manoj Kumar Bhat
- National Centre for Cell Science, Savitribai Phule Pune University, Ganeshkhind, Pune 411007, India.
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Kim H, Lee DS, An TH, Park HJ, Kim WK, Bae KH, Oh KJ. Metabolic Spectrum of Liver Failure in Type 2 Diabetes and Obesity: From NAFLD to NASH to HCC. Int J Mol Sci 2021; 22:ijms22094495. [PMID: 33925827 PMCID: PMC8123490 DOI: 10.3390/ijms22094495] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 02/06/2023] Open
Abstract
Liver disease is the spectrum of liver damage ranging from simple steatosis called as nonalcoholic fatty liver disease (NAFLD) to hepatocellular carcinoma (HCC). Clinically, NAFLD and type 2 diabetes coexist. Type 2 diabetes contributes to biological processes driving the severity of NAFLD, the primary cause for development of chronic liver diseases. In the last 20 years, the rate of non-viral NAFLD/NASH-derived HCC has been increasing rapidly. As there are currently no suitable drugs for treatment of NAFLD and NASH, a class of thiazolidinediones (TZDs) drugs for the treatment of type 2 diabetes is sometimes used to improve liver failure despite the risk of side effects. Therefore, diagnosis, prevention, and treatment of the development and progression of NAFLD and NASH are important issues. In this review, we will discuss the pathogenesis of NAFLD/NASH and NAFLD/NASH-derived HCC and the current promising pharmacological therapies of NAFLD/NASH. Further, we will provide insights into "adipose-derived adipokines" and "liver-derived hepatokines" as diagnostic and therapeutic targets from NAFLD to HCC.
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Affiliation(s)
- Hyunmi Kim
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.K.); (D.S.L.); (T.H.A.); (H.-J.P.); (W.K.K.)
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Da Som Lee
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.K.); (D.S.L.); (T.H.A.); (H.-J.P.); (W.K.K.)
| | - Tae Hyeon An
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.K.); (D.S.L.); (T.H.A.); (H.-J.P.); (W.K.K.)
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Hyun-Ju Park
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.K.); (D.S.L.); (T.H.A.); (H.-J.P.); (W.K.K.)
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Won Kon Kim
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.K.); (D.S.L.); (T.H.A.); (H.-J.P.); (W.K.K.)
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
| | - Kwang-Hee Bae
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.K.); (D.S.L.); (T.H.A.); (H.-J.P.); (W.K.K.)
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
- Correspondence: (K.-H.B.); (K.-J.O.); Tel.: +82-42-860-4268 (K.-H.B.); +82-42-879-8265 (K.-J.O.)
| | - Kyoung-Jin Oh
- Metabolic Regulation Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (H.K.); (D.S.L.); (T.H.A.); (H.-J.P.); (W.K.K.)
- Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34141, Korea
- Correspondence: (K.-H.B.); (K.-J.O.); Tel.: +82-42-860-4268 (K.-H.B.); +82-42-879-8265 (K.-J.O.)
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11
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Assessment of the association between body composition and risk of non-alcoholic fatty liver. PLoS One 2021; 16:e0249223. [PMID: 33793621 PMCID: PMC8016222 DOI: 10.1371/journal.pone.0249223] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 03/12/2021] [Indexed: 12/20/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is defined as the condition of fat accumulation in the liver. This cross-sectional study aimed to investigate the relationship between body composition and fatty liver and determine of cut-off point for predicting NAFLD. Samples were selected from the nutrition clinic from 2016 to 2017 in Tehran, Iran. The liver steatosis was calculated using the CAP score through the FiroScan™ and body composition was measured using the dual-energy X-ray absorptiometry scan method. A total of 2160 patients participated in this study, 745 (34.5%) subjects had NAFLD. We found that fat-free tissue was inversely and fat tissue was directly correlated with the risk of NAFLD in almost all factors and the risk of developing NAFLD increases if the total fat exceeds 32.23% and 26.73% in women and men and abdominal fat exceeds 21.42% and 13.76% in women and men, respectively. Finally, we realized that the total fat percent had the highest AUC (0.932 for men and 0.917 for women) to predict the risk of NAFLD. Overall, the likelihood of NAFLD development rose significantly with increasing the amount of total fat and abdominal fat from the cut-off point level.
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12
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Rajesh Y, Sarkar D. Association of Adipose Tissue and Adipokines with Development of Obesity-Induced Liver Cancer. Int J Mol Sci 2021; 22:ijms22042163. [PMID: 33671547 PMCID: PMC7926723 DOI: 10.3390/ijms22042163] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/01/2021] [Accepted: 02/02/2021] [Indexed: 12/20/2022] Open
Abstract
Obesity is rapidly dispersing all around the world and is closely associated with a high risk of metabolic diseases such as insulin resistance, dyslipidemia, and nonalcoholic fatty liver disease (NAFLD), leading to carcinogenesis, especially hepatocellular carcinoma (HCC). It results from an imbalance between food intake and energy expenditure, leading to an excessive accumulation of adipose tissue (AT). Adipocytes play a substantial role in the tumor microenvironment through the secretion of several adipokines, affecting cancer progression, metastasis, and chemoresistance via diverse signaling pathways. AT is considered an endocrine organ owing to its ability to secrete adipokines, such as leptin, adiponectin, resistin, and a plethora of inflammatory cytokines, which modulate insulin sensitivity and trigger chronic low-grade inflammation in different organs. Even though the precise mechanisms are still unfolding, it is now established that the dysregulated secretion of adipokines by AT contributes to the development of obesity-related metabolic disorders. This review focuses on several obesity-associated adipokines and their impact on obesity-related metabolic diseases, subsequent metabolic complications, and progression to HCC, as well as their role as potential therapeutic targets. The field is rapidly developing, and further research is still required to fully understand the underlying mechanisms for the metabolic actions of adipokines and their role in obesity-associated HCC.
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Affiliation(s)
- Yetirajam Rajesh
- Department of Human and Molecular Genetics, Virginia Commonwealth University, Richmond, VA 23298, USA;
| | - Devanand Sarkar
- Massey Cancer Center, Department of Human and Molecular Genetics, VCU Institute of Molecular Medicine (VIMM), Virginia Commonwealth University, Richmond, VA 23298, USA
- Correspondence: ; Tel.: +1-804-827-2339
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13
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Wen F, Shi Z, Liu X, Tan Y, Wei L, Zhu X, Zhang H, Zhu X, Meng X, Ji W, Yang M, Lu Z. Acute Elevated Resistin Exacerbates Mitochondrial Damage and Aggravates Liver Steatosis Through AMPK/PGC-1α Signaling Pathway in Male NAFLD Mice. Horm Metab Res 2021; 53:132-144. [PMID: 33302316 DOI: 10.1055/a-1293-8250] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Resistin was identified as a link between obesity and insulin resistance and is associated with many diseases in mice. Deciphering the related development and molecular mechanism is necessary for the treatment of these diseases. Previous studies have revealed that increased resistin levels are correlated with lipid accumulation and play a role in non-alcoholic fatty liver disease (NAFLD) development. However, the exact mechanisms underlying these processes remain unclear. To further clarify whether acute elevated resistin level exacerbated liver steatosis, a high-fat diet-induced NAFLD animal model was used and treated with or without resistin for 6 days. We discovered that resistin altered mitochondrial morphology, decreased mitochondrial content, and increased lipid accumulation in HFD mice. qRT-PCR and western blot analysis showed that acute elevated resistin significantly altered the gene expression of mitochondrial biogenesis and liver lipid metabolism molecules in HFD mice. Consequently, in vitro experiments verified that resistin reduced the mitochondrial content, impaired the mitochondrial function and increased the lipid accumulation of palmitate-treated HepG2 cells. Additionally, we demonstrated that resistin upregulated proinflammatory factors, which confirmed that resistin promoted the development of inflammation in NAFLD mice and palmitate-treated HepG2 cells. Signaling-transduction analysis demonstrated that acute elevated resistin aggravated liver steatosis through AMPK/PGC-1α pathway in male mice. This reveals a novel pathway through which lipogenesis is induced by resistin and suggests that maintaining mitochondrial homeostasis may be key to treatments for preventing resistin-induced NAFLD aggravation.
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Affiliation(s)
- Fengyun Wen
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Zhuoyan Shi
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Xiaoping Liu
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Yuguang Tan
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Lan Wei
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Xuemin Zhu
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Hui Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Xiaohuan Zhu
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Xiangmiao Meng
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Weixia Ji
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Mengting Yang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
| | - Zhaoxuan Lu
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan, P. R. China
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14
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Čolak E, Pap D. The role of oxidative stress in the development of obesity and obesity-related metabolic disorders. J Med Biochem 2021; 40:1-9. [PMID: 33584134 PMCID: PMC7857849 DOI: 10.5937/jomb0-24652] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 01/30/2020] [Indexed: 12/21/2022] Open
Abstract
Obesity is a serious medical condition, defined as excessive accumulation of fat. Abdominal fat is recognized as the major risk for obesity related diseases such as: hypertension, dyslipidemia, type 2 diabetes mellitus, coronary heart disease, stroke, non-alcoholic fatty liver disease etc. Fat accumulation is also related to pro-oxidant and pro-inflammatory states. Recently published articles suggest that oxidative stress may be a link between obesity and related complications. Adiposity leads to increased oxidative stress via several multiple biochemical processes such as superoxide generation through the action of NADPH oxidase, glyceraldehyde auto-oxidation, oxidative phosphorylation, protein kinase C (PKC) activation, and polyol and hexosamine pathways. On the other hand, oxidative stress plays a causative role in the development of obesity, by stimulating the deposition of adipose tissue, including preadipocyte proliferation, adipocyte differentiation and growth. Exercise-induced weight loss can improve the redox state by modulating both oxidative stress and antioxidant promoters, which reduce endothelial dysfunction and inflammation.
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Affiliation(s)
- Emina Čolak
- Clinical Center of Serbia, Institute of Medical Biochemistry, Department for Scientific Research and Education, Belgrade
| | - Dragana Pap
- Students Health Protection Institute, Department of Laboratory Diagnostics, Novi Sad
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15
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Li X, Wang H. Multiple organs involved in the pathogenesis of non-alcoholic fatty liver disease. Cell Biosci 2020; 10:140. [PMID: 33372630 PMCID: PMC7720519 DOI: 10.1186/s13578-020-00507-y] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 11/27/2020] [Indexed: 02/08/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) represents the leading cause of chronic liver disease worldwide and the anticipated health burden is huge. There are limited therapeutic approaches for NAFLD now. It’s imperative to get a better understanding of the disease pathogenesis if new treatments are to be discovered. As the hepatic manifestation of metabolic syndrome, this disease involves complex interactions between different organs and regulatory pathways. It’s increasingly clear that brain, gut and adipose tissue all contribute to NAFLD pathogenesis and development, in view of their roles in energy homeostasis. In the present review, we try to summarize currently available data regarding NAFLD pathogenesis and to lay a particular emphasis on the inter-organ crosstalk evidence.
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Affiliation(s)
- Xiaoyan Li
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Hua Wang
- Department of Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China. .,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Hefei, 230032, China.
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16
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Rom O, Liu Y, Liu Z, Zhao Y, Wu J, Ghrayeb A, Villacorta L, Fan Y, Chang L, Wang L, Liu C, Yang D, Song J, Rech JC, Guo Y, Wang H, Zhao G, Liang W, Koike Y, Lu H, Koike T, Hayek T, Pennathur S, Xi C, Wen B, Sun D, Garcia-Barrio MT, Aviram M, Gottlieb E, Mor I, Liu W, Zhang J, Chen YE. Glycine-based treatment ameliorates NAFLD by modulating fatty acid oxidation, glutathione synthesis, and the gut microbiome. Sci Transl Med 2020; 12:eaaz2841. [PMID: 33268508 PMCID: PMC7982985 DOI: 10.1126/scitranslmed.aaz2841] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 03/11/2020] [Accepted: 10/16/2020] [Indexed: 12/12/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) including nonalcoholic steatohepatitis (NASH) has reached epidemic proportions with no pharmacological therapy approved. Lower circulating glycine is consistently reported in patients with NAFLD, but the causes for reduced glycine, its role as a causative factor, and its therapeutic potential remain unclear. We performed transcriptomics in livers from humans and mice with NAFLD and found suppression of glycine biosynthetic genes, primarily alanine-glyoxylate aminotransferase 1 (AGXT1). Genetic (Agxt1 -/- mice) and dietary approaches to limit glycine availability resulted in exacerbated diet-induced hyperlipidemia and steatohepatitis, with suppressed mitochondrial/peroxisomal fatty acid β-oxidation (FAO) and enhanced inflammation as the underlying pathways. We explored glycine-based compounds with dual lipid/glucose-lowering properties as potential therapies for NAFLD and identified a tripeptide (Gly-Gly-L-Leu, DT-109) that improved body composition and lowered circulating glucose, lipids, transaminases, proinflammatory cytokines, and steatohepatitis in mice with established NASH induced by a high-fat, cholesterol, and fructose diet. We applied metagenomics, transcriptomics, and metabolomics to explore the underlying mechanisms. The bacterial genus Clostridium sensu stricto was markedly increased in mice with NASH and decreased after DT-109 treatment. DT-109 induced hepatic FAO pathways, lowered lipotoxicity, and stimulated de novo glutathione synthesis. In turn, inflammatory infiltration and hepatic fibrosis were attenuated via suppression of NF-κB target genes and TGFβ/SMAD signaling. Unlike its effects on the gut microbiome, DT-109 stimulated FAO and glutathione synthesis independent of NASH. In conclusion, impaired glycine metabolism may play a causative role in NAFLD. Glycine-based treatment attenuates experimental NAFLD by stimulating hepatic FAO and glutathione synthesis, thus warranting clinical evaluation.
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Affiliation(s)
- Oren Rom
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Yuhao Liu
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Zhipeng Liu
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue University, West Lafayette, IN 47907, USA
| | - Ying Zhao
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Jianfeng Wu
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI 48109, USA
| | - Alia Ghrayeb
- The Cancer Metabolism Laboratory, the Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 31096, Israel
| | - Luis Villacorta
- Department of Physiology, Morehouse School of Medicine, Atlanta, GA 30310, USA
| | - Yanbo Fan
- Department of Cancer Biology and Department of Internal Medicine, Division of Cardiovascular Health and Disease, University of Cincinnati College of Medicine, Cincinnati, OH 45267, USA
| | - Lin Chang
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Lu Wang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Cai Liu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Dongshan Yang
- Center for Advanced Models for Translational Sciences and Therapeutics, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Jun Song
- Center for Advanced Models for Translational Sciences and Therapeutics, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
| | - Jason C Rech
- Michigan Center for Therapeutic Innovation, University of Michigan, Ann Arbor 48109, MI, USA
| | - Yanhong Guo
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Huilun Wang
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Guizhen Zhao
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Wenying Liang
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yui Koike
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Haocheng Lu
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Tomonari Koike
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Tony Hayek
- The Lipid Research Laboratory, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 31096, Israel
- Department of Internal Medicine E, Rambam Health Care Campus, Haifa 31096, Israel
| | | | - Chuanwu Xi
- Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, MI 48109, USA
| | - Bo Wen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
| | - Duxin Sun
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Michael Aviram
- The Lipid Research Laboratory, Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 31096, Israel
| | - Eyal Gottlieb
- The Cancer Metabolism Laboratory, the Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 31096, Israel
| | - Inbal Mor
- The Cancer Metabolism Laboratory, the Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 31096, Israel
| | - Wanqing Liu
- Department of Pharmaceutical Sciences and Department of Pharmacology, Wayne State University, Detroit, MI 48201, USA
| | - Jifeng Zhang
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Y Eugene Chen
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
- Center for Advanced Models for Translational Sciences and Therapeutics, University of Michigan Medical Center, Ann Arbor, MI 48109, USA
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Wu X, den Boer ER, Vos-Loohuis M, van Steenbeek FG, Monroe GR, Nijman IJ, Leegwater PAJ, Fieten H. Investigation of Genetic Modifiers of Copper Toxicosis in Labrador Retrievers. Life (Basel) 2020; 10:life10110266. [PMID: 33142854 PMCID: PMC7693796 DOI: 10.3390/life10110266] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 10/29/2020] [Indexed: 01/09/2023] Open
Abstract
Copper toxicosis is a complex genetic disorder in Labrador retrievers characterized by hepatic copper accumulation eventually leading to liver cirrhosis. The variation of hepatic copper levels in Labrador retrievers has been partly explained by mutations in ATP7A c.980C>T and ATP7B c.4358G>A. To further elucidate the genetic background of this disease, we used targeted Next Generation Sequencing (NGS) in a cohort of 95 Labrador retrievers to analyze 72 potential modifier genes for variations associated with hepatic copper levels. Variants associated with copper levels were subsequently evaluated in a replication cohort of 144 Labrador retrievers. A total of 44 variants in 25 different genes were identified, of which four showed significant association with copper levels. Of the four variants found associated with hepatic copper levels in the NGS cohort, one was validated in the replication cohort. The non-reference allele of the variant NC_006602.3.g.52434480C>T in RETN resulting in amino-acid change p.Leu7Phe was associated with decreased hepatic copper levels. In humans, resistin is associated with severity of non-alcoholic fatty liver disease, fibrosis, cirrhosis and mitochondrial dysfunction in hepatocytes. Further studies are needed to investigate the biological function of RETN p.Leu7Phe in the development of copper toxicosis in Labrador retrievers.
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Affiliation(s)
- Xiaoyan Wu
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (X.W.); (E.R.d.B.); (M.V.-L.); (F.G.v.S.); (P.A.J.L.)
| | - Elise R. den Boer
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (X.W.); (E.R.d.B.); (M.V.-L.); (F.G.v.S.); (P.A.J.L.)
| | - Manon Vos-Loohuis
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (X.W.); (E.R.d.B.); (M.V.-L.); (F.G.v.S.); (P.A.J.L.)
| | - Frank G. van Steenbeek
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (X.W.); (E.R.d.B.); (M.V.-L.); (F.G.v.S.); (P.A.J.L.)
| | - Glen R. Monroe
- Center for Molecular Medicine, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG Utrecht, The Netherlands; (G.R.M.); (I.J.N.)
| | - Isaäc J. Nijman
- Center for Molecular Medicine, University Medical Center Utrecht, Universiteitsweg 100, 3584 CG Utrecht, The Netherlands; (G.R.M.); (I.J.N.)
| | - Peter. A. J. Leegwater
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (X.W.); (E.R.d.B.); (M.V.-L.); (F.G.v.S.); (P.A.J.L.)
| | - Hille Fieten
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Yalelaan 108, 3584 CM Utrecht, The Netherlands; (X.W.); (E.R.d.B.); (M.V.-L.); (F.G.v.S.); (P.A.J.L.)
- Correspondence:
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18
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Jin M, Niu X, Liu Y, Zhang D, Yuan D, Shen H. Effect of glucagon-like peptide-1 receptor agonists on adipokine level of nonalcoholic fatty liver disease in rats fed high-fat diet. Open Med (Wars) 2020; 15:689-696. [PMID: 33336025 PMCID: PMC7712363 DOI: 10.1515/med-2020-0212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/30/2020] [Accepted: 06/16/2020] [Indexed: 12/19/2022] Open
Abstract
Background Nonalcoholic fatty liver disease (NAFLD) is the leading cause of liver disease worldwide, and no effective treatment exists until now. Glucagon-like peptide-1 receptor agonists are becoming the preferred therapeutic option for the management of obesity and are becoming the preferred treatment options for the management of both NAFLD and type 2 diabetes mellitus, but the molecular mechanisms are still unclear. Methods Forty-five healthy male Wistar rats were divided into three groups: normal control, high-fat diet (HFD) group, HFD + liraglutide (100 mg/kg body weight) group. Biochemical parameters and adipokine levels were examined in the serum of rats. In order to judge the degree of steatosis of NAFLD, the magnetic resonance imaging and histopathology of the liver were also studied. Results and conclusion Liraglutide caused a significant decrease in the serum fasting glucose and improved the insulin resistance, dyslipidemia, and liver enzymes. It reduced the adipokine level, and alleviated the histopathology of liver of rats in the steatosis, ballooning, and lobular inflammation when compared to the HFD group. Thus, liraglutide demonstrated amelioration of NAFLD by decreasing the adipokine levels in this animal model and seems to be a promising molecule for the management of NAFLD.
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Affiliation(s)
- Miaomiao Jin
- Department of Endocrinology, The Heji Affiliated Hospital of Changzhi Medical College, 271 Taihang East Street, Luzhou District, Changzhi 046011, Shanxi, China
| | - Xiaohong Niu
- Department of Endocrinology, The Heji Affiliated Hospital of Changzhi Medical College, 271 Taihang East Street, Luzhou District, Changzhi 046011, Shanxi, China
| | - Yan Liu
- Department of Physiology, Changzhi Medical College, Changzhi 046000, Shanxi, China
| | - Dong Zhang
- Department of Radiology, The Heji Affiliated Hospital of Changzhi Medical College, Changzhi 046011, Shanxi, China
| | - Danni Yuan
- Department of Pathology, The Heji Affiliated Hospital of Changzhi Medical College, Changzhi 046011, Shanxi, China
| | - Huimin Shen
- Department of Laboratory, The Heji Affiliated Hospital of Changzhi Medical College, Changzhi 046011, Shanxi, China
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Ibrahim DM, Shaaban ESE, Fouad TA. Circulating Resistin Is Associated with Plasma Glucagon-Like Peptide-1 in Cirrhotic Patients with Hepatitis C Virus Genotype-4 Infection. Endocr Res 2020; 45:17-23. [PMID: 31177870 DOI: 10.1080/07435800.2019.1627551] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Purpose: Limited and contradictory data on the circulating levels of glucagon-like peptide (GLP-1) and resistin in hepatitis C virus genotype-4 (HCV-4) cirrhotic patients are present. Thus, this study aimed to evaluate their concentrations and to investigate the association between total GLP-1, resistin, and insulin resistance in those patients.Materials and Methods: Non-diabetic HCV-4 cirrhotic patients (n = 80; 40 with Child-Pugh A, 20 with Child-Pugh B, and 20 with Child-Pugh C), and 25 healthy subjects were enrolled in this study. The basal circulating levels of total GLP-1 and resistin along with serum insulin, glucose, total cholesterol, and triglycerides were measured.Results: Plasma GLP-1 and serum resistin levels were significantly higher in cirrhotic patients than controls (P < . 001). Moreover, circulating GLP-1 and resistin levels increased in a stepwise fashion in line with increasing grade of liver damage. According to Spearman's rank correlation, both GLP-1 and resisitin correlated positively with each other, insulin, homeostatic model assessment of insulin resistance, alanine aminotransferase (ALT), total bilirubin, and international normalized ratio while they correlated negatively with albumin (P < .001). Multiple stepwise regression analysis showed that ALT, serum resistin and Child-Pugh score independently influenced the GLP-1 levels in cirrhotic patients.Conclusions: Circulating levels of GLP-1 and resistin were elevated in cirrhotic patients with HCV-4. Further, the severity of liver cirrhosis and serum resistin were the determinant factors explaining the variability of GLP-1 levels by about 84%. In addition, a positive relation was found between insulin resistance and both GLP-1 and resistin levels.
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Affiliation(s)
- Doaa M Ibrahim
- Biochemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - El Saeid E Shaaban
- Internal Medicine Department, El-Mataria Teaching Hospital, The General Organization for Teaching Hospitals and Institutes, Cairo, Egypt
| | - Tarek A Fouad
- Internal Medicine Department, El-Mataria Teaching Hospital, The General Organization for Teaching Hospitals and Institutes, Cairo, Egypt
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Estienne A, Bongrani A, Reverchon M, Ramé C, Ducluzeau PH, Froment P, Dupont J. Involvement of Novel Adipokines, Chemerin, Visfatin, Resistin and Apelin in Reproductive Functions in Normal and Pathological Conditions in Humans and Animal Models. Int J Mol Sci 2019; 20:ijms20184431. [PMID: 31505789 PMCID: PMC6769682 DOI: 10.3390/ijms20184431] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/06/2019] [Accepted: 09/06/2019] [Indexed: 12/23/2022] Open
Abstract
It is well known that adipokines are endocrine factors that are mainly secreted by white adipose tissue. Their central role in energy metabolism is currently accepted. More recently, their involvement in fertility regulation and the development of some reproductive disorders has been suggested. Data concerning the role of leptin and adiponectin, the two most studied adipokines, in the control of the reproductive axis are consistent. In recent years, interest has grown about some novel adipokines, chemerin, visfatin, resistin and apelin, which have been found to be strongly associated with obesity and insulin-resistance. Here, we will review their expression and role in male and female reproduction in humans and animal models. According to accumulating evidence, they could regulate the secretion of GnRH (Gonadotropin-Releasing Hormone), gonadotropins and steroids. Furthermore, their expression and that of their receptors (if known), has been demonstrated in the human and animal hypothalamo-pituitary-gonadal axis. Like leptin and adiponectin, these novel adipokines could thus represent metabolic sensors that are able to regulate reproductive functions according to energy balance changes. Therefore, after investigating their role in normal fertility, we will also discuss their possible involvement in some reproductive troubles known to be associated with features of metabolic syndrome, such as polycystic ovary syndrome, gestational diabetes mellitus, preeclampsia and intra-uterine growth retardation in women, and sperm abnormalities and testicular pathologies in men.
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Affiliation(s)
- Anthony Estienne
- INRA UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours F-37041 Tours, France
- IFCE, F-37380 Nouzilly, France
| | - Alice Bongrani
- INRA UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours F-37041 Tours, France
- IFCE, F-37380 Nouzilly, France
| | - Maxime Reverchon
- SYSAAF-Syndicat des Sélectionneurs Avicoles et Aquacoles Français, Centre INRA Val de Loire, F-37380 Nouzilly, France
| | - Christelle Ramé
- INRA UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours F-37041 Tours, France
- IFCE, F-37380 Nouzilly, France
| | - Pierre-Henri Ducluzeau
- INRA UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours F-37041 Tours, France
- IFCE, F-37380 Nouzilly, France
- Internal Medicine Department, Unit of Endocrinology, CHRU Tours, F-37044 Tours, France
| | - Pascal Froment
- INRA UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France
- Université François Rabelais de Tours F-37041 Tours, France
- IFCE, F-37380 Nouzilly, France
| | - Joëlle Dupont
- INRA UMR 85 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- CNRS UMR 7247 Physiologie de la Reproduction et des Comportements, F-37380 Nouzilly, France.
- Université François Rabelais de Tours F-37041 Tours, France.
- IFCE, F-37380 Nouzilly, France.
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Rahmanabadi A, Mahboob S, Amirkhizi F, Hosseinpour-Arjmand S, Ebrahimi-Mameghani M. Oral α-lipoic acid supplementation in patients with non-alcoholic fatty liver disease: effects on adipokines and liver histology features. Food Funct 2019; 10:4941-4952. [PMID: 31343010 DOI: 10.1039/c9fo00449a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Considering the importance of adipokines in the pathophysiology of non-alcoholic fatty liver disease (NAFLD), and due to the possible beneficial effects of α-lipoic acid (α-LA) on these adipose-derived hormones, this study aimed to investigate the effect of α-LA supplementation on adipokines and liver steatosis in obese patients with NAFLD. In a double-blind, placebo-controlled randomized clinical trial with two parallel groups, fifty patients with NAFLD were randomized to receive daily supplementation with either two capsules of α-LA (each capsule containing 600 mg α-LA) or two placebo capsules, daily for 12 weeks. At the baseline, all participants received consultation on how to implement a healthy diet into their daily lives. Anthropometric measures, dietary intakes, liver enzymes and adipokines were assessed at the baseline and after 12 weeks of intervention. A significant reduction was observed in the serum levels of insulin (P = 0.024) and leptin (P = 0.019) in the α-LA group compared to the placebo group, but changes in anthropometric and body composition measures, serum glucose (FSG), resistin, irisin and liver enzymes did not differ between the groups. α-LA supplementation resulted in a statistically significant elevation in the quantitative insulin sensitivity check index (QUICKI) (P = 0.033), serum levels of adiponectin (P = 0.008) and adiponectin-to-leptin ratio (P = 0.007) compared to the placebo. The liver steatosis intensity improved significantly. Nonetheless, no significant differences were observed between the study groups in the liver steatosis intensity, at the end of the study. According to the results, α-LA supplementation for 12 weeks improved insulin resistance, serum levels of insulin, adiponectin and leptin without changing anthropometric measures, serum liver enzymes, resistin and irisin.
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Affiliation(s)
- Alireza Rahmanabadi
- Student Research Committee, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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Acquarone E, Monacelli F, Borghi R, Nencioni A, Odetti P. Resistin: A reappraisal. Mech Ageing Dev 2019; 178:46-63. [DOI: 10.1016/j.mad.2019.01.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/28/2018] [Accepted: 01/11/2019] [Indexed: 02/07/2023]
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Albracht-Schulte K, Rosairo S, Ramalingam L, Wijetunge S, Ratnayake RMCJ, Kotakadeniya HMSRB, Dawson JA, Kalupahana NS, Moustaid-Moussa N. Obesity, adipocyte hypertrophy, fasting glucose, and resistin are potential contributors to nonalcoholic fatty liver disease in South Asian women. Diabetes Metab Syndr Obes 2019; 12:863-872. [PMID: 31354322 PMCID: PMC6573778 DOI: 10.2147/dmso.s203937] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 04/01/2019] [Indexed: 12/18/2022] Open
Abstract
Purpose: Nonalcoholic fatty liver disease (NAFLD) is often referred to as the hepatic manifestation of the metabolic syndrome. The relationship between body weight, NAFLD, and insulin resistance is not well characterized in humans. Additionally, it is unclear why South Asians develop these complications at lower levels of obesity compared to their Western counterparts. Patients and methods: To address this question, we performed a cross-sectional study using a convenience sample of Sri Lankan adult females (n=34) and collected anthropometric data, adipose tissue specimens (for histology), and fasted serum samples (for metabolic and inflammatory markers). Hepatic steatosis was assessed by ultrasound scanning and used to classify participants as NAFL 0, NAFL 1, and NAFL 2. Results: Waist circumference significantly increased with increasing NAFL grade. Participants with NAFL had significantly higher body mass index, hip circumference, and fasting plasma glucose, as well as a higher mean adipocyte area in both abdominal subcutaneous and visceral areas, indicating a higher degree of adipocyte hypertrophy associated with fatty liver. There were, however, no differences in measures of dyslipidemia. Of the multiple adipokines measured, resistin was the only proinflammatory adipokine significantly elevated in NAFL 2. Conclusion: These findings indicate that measures of adiposity, fasting serum glucose, and resistin may be important indicators of NAFLD in South Asian women.
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Affiliation(s)
- Kembra Albracht-Schulte
- Department of Nutritional Sciences and Obesity Research Institute, Texas Tech University, Lubbock, TX, USA
| | - Shanthini Rosairo
- Department of Radiology, University of Peradeniya, Peradeniya, Sri Lanka
| | - Latha Ramalingam
- Department of Nutritional Sciences and Obesity Research Institute, Texas Tech University, Lubbock, TX, USA
| | | | - RMCJ Ratnayake
- Department of Obstetrics and Gynecology, University of Peradeniya, Peradeniya, Sri Lanka
| | | | - John A Dawson
- Department of Nutritional Sciences and Obesity Research Institute, Texas Tech University, Lubbock, TX, USA
| | - Nishan S Kalupahana
- Department of Nutritional Sciences and Obesity Research Institute, Texas Tech University, Lubbock, TX, USA
- Department of Physiology, Faculty of Medicine, University of Peradeniya, Peradeniya, Sri Lanka
| | - Naima Moustaid-Moussa
- Department of Nutritional Sciences and Obesity Research Institute, Texas Tech University, Lubbock, TX, USA
- Correspondence: Naima Moustaid-MoussaDepartment of Nutritional Sciences, Obesity Research Institute, College of Human Sciences, Texas Tech University, 1301 Akron Street, Lubbock, TX79409-1270, USATel +1 806 834 7946Email
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BALTIERI L, CHAIM EA, CHAIM FDM, UTRINI MP, GESTIC MA, CAZZO E. CORRELATION BETWEEN NONALCOHOLIC FATTY LIVER DISEASE FEATURES AND LEVELS OF ADIPOKINES AND INFLAMMATORY CYTOKINES AMONG MORBIDLY OBESE INDIVIDUALS. ARQUIVOS DE GASTROENTEROLOGIA 2018; 55:247-251. [DOI: 10.1590/s0004-2803.201800000-62] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 05/28/2018] [Indexed: 01/01/2023]
Abstract
ABSTRACT BACKGROUND: Nonalcoholic fatty liver disease (NAFLD) is the commonest hepatopathy worldwide. OBJECTIVE: To investigate the correlations between NAFLD histopathological features and the levels of adipokines (adiponectin, leptin, and resistin) and circulating inflammatory markers (interleukin-6 [IL-6], interleukin-8 [IL-8], tumor necrosis factor alpha [TNF-α], and C-reactive protein [CRP]). METHODS: This is an exploratory cross-sectional study, which enrolled 19 women with obesity who underwent bariatric surgery. Biochemical characteristics evaluated included the levels of adiponectin, leptin, resistin, IL-6, IL-8, TNF-α, and CRP. NAFLD was assessed through histological examination of liver biopsies carried out during the surgical procedures. RESULTS: The mean age of the study group was 37.3±8.2 years old; mean BMI was 36.2±2.5 kg/m2. Among individuals with liver fibrosis, the levels of IL-8 were significantly higher (24.4 ± 9.7 versus 12.7 ± 6.6; P=0.016726). The intensity of fibrosis presented a significant negative correlation with the levels of adiponectin (R= -0.49379; P=0.03166); i.e. the higher the levels of adiponectin, the lower the intensity of fibrosis. The intensity of steatohepatitis presented a significant negative correlation with the levels of adiponectin (R= -0.562321; P=0.01221); this means that the higher the levels of adiponectin, the lower the intensity of steatohepatitis. CONCLUSION: Adiponectin levels were inversely correlated with the severity of fibrosis and steatohepatitis, whereas IL-8 levels were higher in individuals with liver fibrosis among individuals with obesity and NAFLD undergoing bariatric surgery. The use of these markers to assess NAFLD may bring significant information within similar populations.
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Underrated enemy - from nonalcoholic fatty liver disease to cancers of the gastrointestinal tract. Clin Exp Hepatol 2018; 4:55-71. [PMID: 29904722 PMCID: PMC6000748 DOI: 10.5114/ceh.2018.75955] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Accepted: 04/17/2018] [Indexed: 12/12/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is intrahepatic ectopic lipid deposition which is present despite a lack of other causes of secondary hepatic fat accumulation. It is the most common chronic liver disorder in the welldeveloped countries. NAFLD is a multidisciplinary disease that affects various systems and organs and is inextricably linked to simple obesity, metabolic syndrome, insulin resistance and overt diabetes mellitus type 2. The positive energy balance related to obesity leads to a variety of systemic changes including modified levels of insulin, insulin- like growth factor-1, adipokines, hepatokines and cytokines. It is strongly linked to carcinogenesis and new evidence proves that NAFLD is associated with higher risk of all-cause mortality and cancer-specific mortality among cancer survivors. This article focuses on the association between NAFLD and extrahepatic gastrointestinal tract cancers, aiming to shed light on the pathomechanism of changes leading to the development of tumors.
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Boutari C, Perakakis N, Mantzoros CS. Association of Adipokines with Development and Progression of Nonalcoholic Fatty Liver Disease. Endocrinol Metab (Seoul) 2018; 33:33-43. [PMID: 29589386 PMCID: PMC5874193 DOI: 10.3803/enm.2018.33.1.33] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 02/09/2018] [Accepted: 02/14/2018] [Indexed: 12/15/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a chronic liver disease affecting 30% of the general population and 40% to 70% of obese individuals. Adipose tissue plays a crucial role in its pathogenesis, as it produces and secretes pro- and anti-inflammatory cytokines called adipokines. Adiponectin and leptin have well-determined actions in terms of NAFLD pathophysiology. Adiponectin deficiency is associated with a pro-inflammatory condition, as it is observed in obesity and other metabolic disorders. On the other hand, increased leptin levels, above the normal levels, act as a pro-inflammatory stimulus. Regarding other adipokines (resistin, visfatin, chemerin, retinol-binding protein 4, irisin), data about their contribution to NAFLD pathogenesis and progression are inconclusive. In addition, pharmacological agents like thiazolidinediones (pioglitazone and rosiglitazone), that are used in the management of NAFLD exert favourable effects on adipokine levels, which in turn may contribute to the improvement of liver function. This review summarizes the current knowledge and developments in the association between adipokines and NAFLD and discusses possible therapeutic implications targeting the modulation of adipokine levels as a potential tool for the treatment of NAFLD.
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Affiliation(s)
- Chrysoula Boutari
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Nikolaos Perakakis
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Christos Socrates Mantzoros
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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Stine JG, Wang J, Cornella SL, Behm BW, Henry Z, Shah NL, Caldwell SH, Northup PG. Treatment of Type-1 Hepatorenal Syndrome with Pentoxifylline: A Randomized Placebo Controlled Clinical Trial. Ann Hepatol 2018; 17:300-306. [PMID: 29469046 PMCID: PMC7485043 DOI: 10.5604/01.3001.0010.8660] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Type-1 hepatorenal syndrome (HRS-1) portends a poor prognosis in patients with cirrhosis. Currently available medical therapies are largely ineffective, save for liver transplantation. We aimed to determine if pentoxifylline (PTX) therapy in addition to the standard of care of volume expansion with albumin and vasoconstriction with midodrine and octreotide (AMO) is safe and efficacious compared to AMO in HRS-1 treatment. MATERIAL AND METHODS Hospitalized subjects with decompensated cirrhosis and HRS-1 were enrolled. PTX or placebo was administered with AMO therapy for up to 14 days. The primary endpoint was HRS-1 resolution (serum creatinine ≤ 1.5 g/dL for > 24 h). Secondary endpoints were change in creatinine and MELD score, partial treatment response, 30-and 180-day overall and transplant free survival. RESULTS Twelve subjects with mean age 58.9 ± 6.2 years were enrolled and randomized. Mean MELD score was 26.5 ± 7.4 and 58.3% were male. Overall cohort 30- and 180-day survival was 58.3% and 33.3% respectively. Two subjects underwent liver transplantation. HRS-1 resolution (16.7% vs. 16.7%, p = 1.000), partial treatment response (33.3% vs. 16.7%, p = 0.505), change in creatinine (+0.48 g/dL, 95% CI -0.49-1.46 vs. +0.03 g/dL, 95% CI -0.64- 0.70, p = 0.427), 30-day survival (66.6% vs. 50.0%, p = 0.558) and 180-day survival (50.0% vs. 16.7%, p = 0.221) were similar between the two groups. Serious adverse events necessitating treatment discontinuation were rare (n = 1, PTX). DISCUSSION The addition of PTX to AMO in the treatment of HRS-1 is safe when compared to the current standard of care. Future large-scale prospective study to validate the efficacy of this treatment seems warranted.
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Affiliation(s)
- Jonathan G. Stine
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Jennifer Wang
- Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Scott L. Cornella
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Brian W. Behm
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Zachary Henry
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Neeral L. Shah
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Stephen H. Caldwell
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Patrick G. Northup
- Division of Gastroenterology & Hepatology, Department of Medicine, University of Virginia, Charlottesville, VA, United States
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Tsai E, Lee TP. Diagnosis and Evaluation of Nonalcoholic Fatty Liver Disease/Nonalcoholic Steatohepatitis, Including Noninvasive Biomarkers and Transient Elastography. Clin Liver Dis 2018; 22:73-92. [PMID: 29128062 DOI: 10.1016/j.cld.2017.08.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The incidence and prevalence of nonalcoholic fatty liver disease (NAFLD) are increasing and identification of people at risk of disease progression is extremely important. The current gold standard for diagnosing NAFLD/nonalcoholic steatohepatitis (NASH) is by liver biopsy, but it has several limitations. Noninvasive tests via biomarkers and transient elastography to assess NAFLD/NASH are being used in clinical practice. The most validated diagnostic panels include the NAFLD fibrosis score, FIB-4 (Fibrosis-4), and FibroMeter. Transient elastography is very useful in evaluating advanced fibrosis and cirrhosis.
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Affiliation(s)
- Eugenia Tsai
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, Tulane Medical Center, 1430 Tulane Avenue, SL 35, New Orleans, LA 70119, USA
| | - Tai-Ping Lee
- Department of Internal Medicine, Division of Hepatology, Sandra A. Bass Center of Liver Diseases Northwell Health, 400 Community Drive, Manhasset, NY 11030, USA.
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29
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Macut D, Božić-Antić I, Bjekić-Macut J, Tziomalos K. MANAGEMENT OF ENDOCRINE DISEASE: Polycystic ovary syndrome and nonalcoholic fatty liver disease. Eur J Endocrinol 2017; 177:R145-R158. [PMID: 28694246 DOI: 10.1530/eje-16-1063] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 04/26/2017] [Accepted: 05/04/2017] [Indexed: 12/15/2022]
Abstract
Polycystic ovary syndrome (PCOS) is a frequent endocrine disease in women, with a number of metabolic and reproductive consequences. Obesity, insulin resistance (IR) and type 2 diabetes are prominent metabolic characteristics of PCOS and common factors affecting liver function and generating nonalcoholic fatty liver disease (NAFLD). Multiple genes involved in the synthesis of androgens, cytokines and IR, as well as acquired factors, such as endocrine disruptors, could associate the etiopathogenesis of PCOS and NAFLD. Besides the high prevalence of PCOS in general population, NAFLD was shown to be a frequent condition in transition periods, such as adolescence and menopause. Although liver biopsy is considered to be the gold standard for diagnosing liver damage, its routine use in such a prevalent condition as PCOS can be related to a higher rate of complications. Therefore, it is necessary to be able to diagnose NAFLD using simple and reliable surrogate markers. Recently, fatty liver index and NAFLD fatty liver score analyzed in large cohorts of PCOS women have been shown as accurate markers of liver damage in this metabolically vulnerable population. Lifestyle changes are still the mainstay of the management of NAFLD in PCOS, although prospective randomized controlled clinical studies remain a priority in the field. With regard to medications, metformin may be the drug of choice for treating PCOS patients with NAFLD when pharmacologic therapy is considered. Liraglutide use in obese PCOS has shown favorable effects on the predictors of liver fibrosis. In this review, we aim to summarize the influence of the common risk factors and to discuss the diagnostic approaches and management options for NAFLD in patients with PCOS.
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Affiliation(s)
- Djuro Macut
- Clinic of Endocrinology, Diabetes and Metabolic Diseases
| | | | - Jelica Bjekić-Macut
- Department of Endocrinology, CHC Bezanijska Kosa, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Konstantinos Tziomalos
- First Propaedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA Hospital, Thessaloniki, Greece
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30
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Saeedi Borujeni MJ, Esfandiary E, Taheripak G, Codoñer‐Franch P, Alonso‐Iglesias E, Mirzaei H. Molecular aspects of diabetes mellitus: Resistin, microRNA, and exosome. J Cell Biochem 2017; 119:1257-1272. [PMID: 28688216 DOI: 10.1002/jcb.26271] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 07/07/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Mohammad Javad Saeedi Borujeni
- Department of Anatomical SCIENCES and Molecular BiologySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Ebrahim Esfandiary
- Department of Anatomical SCIENCES and Molecular BiologySchool of MedicineIsfahan University of Medical SciencesIsfahanIran
| | - Gholamreza Taheripak
- Faculty of MedicineDepartment of BiochemistryIran University of Medical SciencesTehranIran
| | - Pilar Codoñer‐Franch
- Department of PediatricsObstetrics and GynecologyUniversity of ValenciaValenciaSpain
| | | | - Hamed Mirzaei
- Department of Medical BiotechnologySchool of MedicineMashhad University of Medical SciencesMashhadIran
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31
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Hajavi J, Momtazi AA, Johnston TP, Banach M, Majeed M, Sahebkar A. Curcumin: A Naturally Occurring Modulator of Adipokines in Diabetes. J Cell Biochem 2017; 118:4170-4182. [DOI: 10.1002/jcb.26121] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 05/08/2017] [Indexed: 01/30/2023]
Affiliation(s)
- Jafar Hajavi
- Immunology Research CenterMashhad University of Medical SciencesMashhadIran
| | - Amir Abbas Momtazi
- Student Research Committee, Nanotechnology Research CenterDepartment of Medical Biotechnology, School of Medicine, Mashhad University of Medical SciencesMashhadIran
| | - Thomas P. Johnston
- Division of Pharmaceutical Sciences, School of PharmacyUniversity of Missouri‐Kansas CityKansas CityMissouri
| | - Maciej Banach
- Department of Hypertension, WAM University Hospital in LodzMedical University of LodzZeromskiego 113LodzPoland
| | | | - Amirhossein Sahebkar
- Biotechnology Research CenterMashhad University of Medical SciencesMashhad9177948564Iran
- Neurogenic Inflammation Research CenterMashhad University of Medical SciencesMashhadIran
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32
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Perito ER, Ajmera V, Bass NM, Rosenthal P, Lavine JE, Schwimmer JB, Yates KP, Diehl AM, Molleston JP, Murray KF, Scheimann A, Gill R, Glidden D, Aouizerat B. Association Between Cytokines and Liver Histology in Children with Nonalcoholic Fatty Liver Disease. Hepatol Commun 2017; 1:609-622. [PMID: 29130075 PMCID: PMC5679472 DOI: 10.1002/hep4.1068] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Background Reliable non-invasive markers to characterize inflammation, hepatocellular ballooning, and fibrosis in nonalcoholic fatty liver disease (NAFLD) are lacking. We investigated the relationship between plasma cytokine levels and features of NAFLD histology to gain insight into cellular pathways driving NASH and to identify potential non-invasive discriminators of NAFLD severity and pattern. Methods Cytokines were measured from plasma obtained at enrollment in pediatric participants in NASH Clinical Research Network studies with liver biopsy-proven NAFLD. Cytokines were chosen a priori as possible discriminators of NASH and its components. Minimization of Akaike Information Criterion (AIC) was used to determine cytokines retained in multivariable models. Results Of 235 subjects, 31% had "Definite NASH" on liver histology, 43% had "Borderline NASH", and 25% had NAFLD but not NASH. Total plasminogen activator inhibitor 1 (PAI1) and activated PAI1 levels were higher in pediatric participants with Definite NASH and with lobular inflammation. Interleukin-8 (IL-8) was higher in those with stage 3-4 fibrosis and lobular inflammation. sIL-2rα was higher in children with stage 3-4 fibrosis and portal inflammation. In multivariable analysis, PAI1 variables were discriminators of Borderline/Definite NASH, definite NASH, lobular inflammation and ballooning. IL-8 increased with steatosis and fibrosis severity; sIL-2rα increased with fibrosis severity and portal inflammation. IL-7 decreased with portal inflammation and fibrosis severity. Conclusions Plasma cytokines associated with histology varied considerably among NASH features, suggesting promising avenues for investigation. Future, more targeted analysis is needed to identify the role of these markers in NAFLD and to evaluate their potential as non-invasive discriminators of disease severity.
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Affiliation(s)
- Emily R Perito
- University of California, San Francisco, San Francisco, CA
| | - Veeral Ajmera
- University of California, San Francisco, San Francisco, CA
| | - Nathan M Bass
- University of California, San Francisco, San Francisco, CA
| | | | | | | | | | | | | | | | | | - Ryan Gill
- University of California, San Francisco, San Francisco, CA
| | - David Glidden
- University of California, San Francisco, San Francisco, CA
| | - Bradley Aouizerat
- University of California, San Francisco, San Francisco, CA.,New York University, New York, NY
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New insight into inter-organ crosstalk contributing to the pathogenesis of non-alcoholic fatty liver disease (NAFLD). Protein Cell 2017. [PMID: 28643267 PMCID: PMC5818366 DOI: 10.1007/s13238-017-0436-0] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver dysfunction and a significant global health problem with substantial rise in prevalence over the last decades. It is becoming increasingly clear that NALFD is not only predominantly a hepatic manifestation of metabolic syndrome, but also involves extra-hepatic organs and regulatory pathways. Therapeutic options are limited for the treatment of NAFLD. Accordingly, a better understanding of the pathogenesis of NAFLD is critical for gaining new insight into the regulatory network of NAFLD and for identifying new targets for the prevention and treatment of NAFLD. In this review, we emphasize on the current understanding of the inter-organ crosstalk between the liver and peripheral organs that contributing to the pathogenesis of NAFLD.
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López-Yoldi M, Marcos-Gomez B, Romero-Lozano MA, Sáinz N, Prieto J, Martínez JA, Bustos M, Moreno-Aliaga MJ. Cardiotrophin-1 Regulates Adipokine Production in 3T3-L1 Adipocytes and Adipose Tissue From Obese Mice. J Cell Physiol 2017; 232:2469-2477. [PMID: 27608275 DOI: 10.1002/jcp.25590] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 09/06/2016] [Indexed: 12/19/2022]
Abstract
Cardiotrophin-1 (CT-1) belongs to the IL-6 family of cytokines. Previous studies of our group revealed that CT-1 is a key regulator of glucose and lipid metabolism. The aim of the present study was to analyze the in vitro and in vivo effects of CT-1 on the production of several adipokines involved in body weight regulation, nutrient metabolism, and inflammation. For this purpose, 3T3-L1 adipocytes were incubated with recombinant protein CT-1 (rCT-1) (1-40 ng/ml) for 1 and 18 h. Moreover, the acute effects of rCT-1 administration (0.2 mg/kg, i.v.) for 30 min and 3 h on adipokines levels were also evaluated in high-fat fed obese mice. In 3T3-L1 adipocytes, rCT-1 treatment downregulated the expression and secretion of leptin, resistin, and visfatin. However, rCT-1 significantly stimulated apelin mRNA and secretion. rCT-1 (18 h) also promoted the activation by phosphorylation of AKT, ERK 1/2, and STAT3. Interestingly, pre-treatment with the PI3K inhibitor LY294002 reversed the stimulatory effects of rCT-1 on apelin expression, suggesting that this pathway could be mediating the effects of rCT-1 on apelin production. In contrast, acute administration of rCT-1 (30 min and 3 h) to diet-induced obese mice downregulated leptin and resistin, without significantly modifying apelin or visfatin mRNA in adipose tissue. Furthermore, CT-1 null mice exhibited altered expression of adipokines in adipose tissue. The present study demonstrates that rCT-1 modulates the production of adipokines in vitro and in vivo, suggesting that the regulation of the secretory function of adipocytes could be involved in the metabolic actions of this cytokine. J. Cell. Physiol. 232: 2469-2477, 2017. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Miguel López-Yoldi
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Navarra, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Navarra, Spain
| | - Beatriz Marcos-Gomez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Navarra, Spain
| | | | - Neira Sáinz
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Navarra, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Navarra, Spain
| | - Jesús Prieto
- Department of Hepatology and Gene Therapy, CIMA, University of Navarra, Pamplona, Navarra, Spain.,CIBERehd, Institute of Health Carlos III, Madrid, Spain
| | - Jose Alfredo Martínez
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Navarra, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Navarra, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
| | - Matilde Bustos
- Department of Hepatology and Gene Therapy, CIMA, University of Navarra, Pamplona, Navarra, Spain
| | - Maria J Moreno-Aliaga
- Department of Nutrition, Food Science and Physiology, University of Navarra, Pamplona, Navarra, Spain.,Centre for Nutrition Research, University of Navarra, Pamplona, Navarra, Spain.,CIBERobn, Physiopathology of Obesity and Nutrition, Institute of Health Carlos III, Madrid, Spain.,IdiSNA, Navarra's Health Research Institute, Pamplona, Spain
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Neuman MG, French SW, Zakhari S, Malnick S, Seitz HK, Cohen LB, Salaspuro M, Voinea-Griffin A, Barasch A, Kirpich IA, Thomes PG, Schrum LW, Donohue TM, Kharbanda KK, Cruz M, Opris M. Alcohol, microbiome, life style influence alcohol and non-alcoholic organ damage. Exp Mol Pathol 2017; 102:162-180. [PMID: 28077318 DOI: 10.1016/j.yexmp.2017.01.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 01/04/2017] [Indexed: 02/06/2023]
Abstract
This paper is based upon the "8th Charles Lieber's Satellite Symposium" organized by Manuela G. Neuman at the Research Society on Alcoholism Annual Meeting, on June 25, 2016 at New Orleans, Louisiana, USA. The integrative symposium investigated different aspects of alcohol-induced liver disease (ALD) as well as non-alcohol-induced liver disease (NAFLD) and possible repair. We revealed the basic aspects of alcohol metabolism that may be responsible for the development of liver disease as well as the factors that determine the amount, frequency and which type of alcohol misuse leads to liver and gastrointestinal diseases. We aimed to (1) describe the immuno-pathology of ALD, (2) examine the role of genetics in the development of alcoholic hepatitis (ASH) and NAFLD, (3) propose diagnostic markers of ASH and non-alcoholic steatohepatitis (NASH), (4) examine age and ethnic differences as well as analyze the validity of some models, (5) develop common research tools and biomarkers to study alcohol-induced effects, 6) examine the role of alcohol in oral health and colon and gastrointestinal cancer and (7) focus on factors that aggravate the severity of organ-damage. The present review includes pre-clinical, translational and clinical research that characterizes ALD and NAFLD. Strong clinical and experimental evidence lead to recognition of the key toxic role of alcohol in the pathogenesis of ALD with simple fatty infiltrations and chronic alcoholic hepatitis with hepatic fibrosis or cirrhosis. These latter stages may also be associated with a number of cellular and histological changes, including the presence of Mallory's hyaline, megamitochondria, or perivenular and perisinusoidal fibrosis. Genetic polymorphisms of ethanol metabolizing enzymes and cytochrome p450 (CYP) 2E1 activation may change the severity of ASH and NASH. Other risk factors such as its co-morbidities with chronic viral hepatitis in the presence or absence of human deficiency virus were discussed. Dysregulation of metabolism, as a result of ethanol exposure, in the intestine leads to colon carcinogenesis. The hepatotoxic effects of ethanol undermine the contribution of malnutrition to the liver injury. Dietary interventions such as micro and macronutrients, as well as changes to the microbiota have been suggested. The clinical aspects of NASH, as part of the metabolic syndrome in the aging population, have been presented. The symposium addressed mechanisms and biomarkers of alcohol induced damage to different organs, as well as the role of the microbiome in this dialog. The microbiota regulates and acts as a key element in harmonizing immune responses at intestinal mucosal surfaces. It is known that microbiota is an inducer of proinflammatory T helper 17 cells and regulatory T cells in the intestine. The signals at the sites of inflammation mediate recruitment and differentiation in order to remove inflammatory inducers and promote tissue homeostasis restoration. The change in the intestinal microbiota also influences the change in obesity and regresses the liver steatosis. Evidence on the positive role of moderate alcohol consumption on heart and metabolic diseases as well on reducing steatosis have been looked up. Moreover nutrition as a therapeutic intervention in alcoholic liver disease has been discussed. In addition to the original data, we searched the literature (2008-2016) for the latest publication on the described subjects. In order to obtain the updated data we used the usual engines (Pub Med and Google Scholar). The intention of the eighth symposia was to advance the international profile of the biological research on alcoholism. We also wish to further our mission of leading the forum to progress the science and practice of translational research in alcoholism.
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Affiliation(s)
- Manuela G Neuman
- In Vitro Drug Safety and Biotechnology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.
| | | | | | - Stephen Malnick
- Department Internal Medicine, Kaplan Medical Centre and Hebrew University of Jerusalem, Rehovot, Israel
| | - Helmut K Seitz
- Centre of Alcohol Research, University of Heidelberg, Heidelberg, Germany
| | - Lawrence B Cohen
- Division of Gastroenterology, Sunnybrook Health Sciences Centre, Department of Medicine, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mikko Salaspuro
- Research Unit on Acetaldehyde and Cancer, University of Helsinki, Helsinki, Finland
| | - Andreea Voinea-Griffin
- Public Health Science Texas A&M University, College of Dentistry, Dallas University, TX, USA
| | - Andrei Barasch
- Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Irina A Kirpich
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville School of Medicine, Louisville, KY, USA; Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, USA
| | - Paul G Thomes
- Department of Internal Medicine, Carolinas Medical Center, Charlotte, NC, USA; Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Laura W Schrum
- Department of Internal Medicine, Carolinas Medical Center, Charlotte, NC, USA
| | - Terrence M Donohue
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA
| | - Kusum K Kharbanda
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, USA; Research Service, Veterans Affairs Nebraska-Western Iowa Health Care System, University of Nebraska Medical Center, Omaha, NE, USA; Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, NE, USA
| | - Marcus Cruz
- In Vitro Drug Safety and Biotechnology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mihai Opris
- Department of Pharmacology and Toxicology, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Family Medicine Clinic CAR, Bucharest, Romania
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Meng Z, Zhang Y, Wei Z, Liu P, Kang J, Zhang Y, Ma D, Ke C, Chen Y, Luo J, Gong Z. High serum resistin associates with intrahepatic inflammation and necrosis: an index of disease severity for patients with chronic HBV infection. BMC Gastroenterol 2017; 17:6. [PMID: 28061755 PMCID: PMC5219659 DOI: 10.1186/s12876-016-0558-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 12/08/2016] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Studies have revealed that resistin plays a role as an intrahepatic cytokine with proinflammatory activities. This study investigated the association between serum resistin and fibrosis severity and the possible marker role of resistin in the inflammatory process of chronic hepatitis B. METHODS In this study, 234 subjects with HBV infection were retrospectively selected, including 85 patients with chronic hepatitis B (CHB), 70 patients with HBV-related liver cirrhosis (LC-B), and 79 patients with HBV-related liver failure (LF-B). Serum levels of resistin, IL-1, IL-6, IL-17, IL-23, TNF-α, and TGF-β1 were assayed by ELISA. Demographic and clinical characteristics of patients were extracted from clinical databases of Taihe Hospital, Hubei University of Medicine, including serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), total bilirubin (TBil), and liver stiffness (LS). RESULTS All the selected patients with HBV infection showed significantly increased levels of serum resistin, which was rarely detectable in the healthy controls. Serum resistin levels in patients with CHB, LC-B, and LF-B were 4.119 ± 5.848 ng/mL, 6.370 ± 6.834 ng/mL, and 6.512 ± 6.076 ng/mL, respectively. Compared with the CHB group, patients with LC-B or LF-B presented with significantly higher serum levels of resistin (p < 0.01). On the other hand, all of the enrolled patients had high serum levels of IL-1, IL-6, IL-17, TNF-α, and TGF-β1, but not IL-23. Interestingly, serum levels of resistin was significantly positively correlated with serum levels of TGF-β1 in LC-B patients (R = 0.3090, p = 0.0290), with IL-17 in LC-B (R = 0.4022, p = 0.0038) and LF-B patients (R = 0.5466, p < 0.0001), and with AST (R = 0.4501, p = 0.0036) and LS (R = 0.3415, p = 0.0310) in CHB patients. CONCLUSIONS High serum resistin associates with intrahepatic inflammation and necrosis and may be used as an index of disease severity for patients with chronic HBV infection.
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Affiliation(s)
- Zhongji Meng
- Department of Infectious Diseases, Hubei University of Medicine, Shiyan, China.,Institute of Biomedicine, Hubei University of Medicine, Shiyan, China
| | - Yonghong Zhang
- Institute of Wudang Chinese Medicine, Hubei University of Medicine, Shiyan, China
| | - Zhiqiang Wei
- Institute of Biomedicine, Hubei University of Medicine, Shiyan, China
| | - Ping Liu
- Department of Infectious Diseases, Hubei University of Medicine, Shiyan, China.,Department of Infectious Diseases, Renmin Hospital of Wuhan University, Zhangzhidong Road. 99, 430060, Wuhan, China
| | - Jian Kang
- Department of Infectious Diseases, Hubei University of Medicine, Shiyan, China
| | - Yinhua Zhang
- Department of Infectious Diseases, Hubei University of Medicine, Shiyan, China
| | - Deqiang Ma
- Department of Infectious Diseases, Hubei University of Medicine, Shiyan, China
| | - Changzheng Ke
- Department of Infectious Diseases, Hubei University of Medicine, Shiyan, China
| | - Yue Chen
- Department of Infectious Diseases, Hubei University of Medicine, Shiyan, China
| | - Jie Luo
- Department of Neurology, Taihe Hospital, Hubei University of Medicine, South Renmin Road. 32, 442000, Shiyan, Hubei, China.
| | - Zuojiong Gong
- Department of Infectious Diseases, Renmin Hospital of Wuhan University, Zhangzhidong Road. 99, 430060, Wuhan, China.
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Ajmera V, Perito ER, Bass NM, Terrault NA, Yates KP, Gill R, Loomba R, Diehl AM, Aouizerat B. Novel plasma biomarkers associated with liver disease severity in adults with nonalcoholic fatty liver disease. Hepatology 2017; 65:65-77. [PMID: 27532276 PMCID: PMC5191932 DOI: 10.1002/hep.28776] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 06/02/2016] [Accepted: 08/02/2016] [Indexed: 02/06/2023]
Abstract
UNLABELLED Despite the high prevalence of nonalcoholic fatty liver disease (NAFLD), therapeutic options and noninvasive markers of disease activity and severity remain limited. We investigated the association between plasma biomarkers and liver histology in order to identify markers of disease activity and severity in patients with biopsy-proven NAFLD. Thirty-two plasma biomarkers chosen a priori as possible discriminators of NAFLD were measured in participants enrolled in the Nonalcoholic Steatohepatitis (NASH) Clinical Research Network. Dichotomized histologic outcomes were evaluated using centrally read biopsies. Biomarkers with statistically significant associations with NAFLD histology were evaluated in multivariable models adjusted for clinical factors. Of 648 participants (74.4% white, 61.7% female, mean age 47.7 years), 58.0% had definite NASH, 55.5% had mild/no fibrosis (stage 0-1), and 44.4% had significant fibrosis (stage 2-4). Increased activated plasminogen activator inhibitor 1 had a strong association with definite NASH compared to not NASH or borderline NASH in multivariable analysis (odds ratio = 1.20, 95% confidence interval 1.08-1.34, P < 0.001). Biomarkers associated with significant fibrosis (versus mild/no fibrosis) in multivariable analysis included higher levels of interleukin-8, monocyte chemoattractant protein-1, resistin, soluble interleukin-1 receptor I, soluble interleukin-2 receptor alpha, and tumor necrosis factor alpha and lower levels of insulin-like growth factor 2. CONCLUSIONS Specific plasma biomarkers are significantly associated with disease activity and severity of fibrosis in NAFLD and are potentially valuable tools for noninvasive stratification of patients with NAFLD and identification of targets for therapeutic intervention. (Hepatology 2017;65:65-77).
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Affiliation(s)
- Veeral Ajmera
- Gastroenterology, UCSF, San Francisco, CA, United States
| | - Emily R. Perito
- Pediatric Gastroenterology, UCSF, San Francisco, CA, United States
| | - Nathan M. Bass
- Gastroenterology, UCSF, San Francisco, CA, United States
| | | | | | - Ryan Gill
- Pathology, UCSF, San Francisco, CA, United States
| | - Rohit Loomba
- Gastroenterology, UCSD, San Diego, CA, United States
| | - Anna Mae Diehl
- Gastroenterology, Duke University, Durham, NC, United States
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Li Q, Cai Y, Huang J, Yu X, Sun J, Yang Z, Zhou L. Resistin impairs glucose permeability in EA.hy926 cells by down-regulating GLUT1 expression. Mol Cell Endocrinol 2016; 434:127-34. [PMID: 27353463 DOI: 10.1016/j.mce.2016.06.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 06/17/2016] [Accepted: 06/25/2016] [Indexed: 11/23/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is a chronic disease which is now affecting the health of more and more people in the world. Resistin, discovered in 2001, is considered to be closely related to metabolic dysfunction and obesity. Previous study showed that hyperglycemia is always accompanied by a high serum resistin concentration. We therefore investigated whether resistin can mediate glucose transfer across the blood-tissue barrier. Here, we employed a transwell system to analyze glucose permeability in EA.hy926 human endothelial cells treated without or with human resistin. In EA.hy926 cells treated with resistin, the permeability to glucose was heavily impaired. This was due to the down-regulation of GLUT1 expression as a result of the treatment, rather than regulation of tight junctions. In addition, overexpression of GLUT1 in EA.hy926 cells was able to recover the blocking effect of resistin on glucose permeability. We further found that resistin could inhibit the expression of peroxisome proliferator-activated receptor gamma (PPARγ) and consequently impede the transcription of GLUT1. The results of the present study suggested that resistin could cause glucose retention in serum and thus result in hyperglycemia. This provides a novel explanation for hyperglycemia and a potential new way of treating type 2 diabetes mellitus.
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Affiliation(s)
- Qiang Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, PR China
| | - Yuxi Cai
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China
| | - Jing Huang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China
| | - Xiaolan Yu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China
| | - Jun Sun
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China
| | - Zaiqing Yang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Life Science and Technology, Huazhong Agricultural University, Wuhan, PR China.
| | - Lei Zhou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Animal Science and Technology, Guangxi University, Nanning, PR China.
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Polyzos SA, Kountouras J, Mantzoros CS. Adipokines in nonalcoholic fatty liver disease. Metabolism 2016; 65:1062-79. [PMID: 26725002 DOI: 10.1016/j.metabol.2015.11.006] [Citation(s) in RCA: 220] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2015] [Revised: 11/19/2015] [Accepted: 11/20/2015] [Indexed: 12/13/2022]
Abstract
Since the discovery of adipose tissue as a higly active endocrine tissue, adipokines, peptides produced by adipose tissue and exerting autocrine, paracrine and endocrine function, have gained increasing interest in various obesity-related diseases, including nonalcoholic fatty liver disease (NAFLD). Data regarding the association between NAFLD and circulating leptin and adiponectin levels are generally well documented: leptin levels increase, whereas adiponectin levels decrease, by increasing the severity of NAFLD. Data regarding other adipokines in histologically confirmed NAFLD populations are inconclusive (e.g., resistin, visfatin, retinol-binding protein-4, chemerin) or limited (e.g., adipsin, obestatin, omentin, vaspin etc.). This review summarizes evidence on the association between adipokines and NAFLD. The first part of the review provides general consideration on the interplay between adipokines and NAFLD, and the second part provides evidence on specific adipokines possibly involved in NAFLD pathogenesis. A thorough insight into the pathophysiologic mechanisms linking adipokines with NAFLD may result in the design of studies investigating the combined adipokine use as noninvasive diagnostic markers of NAFLD and new clinical trials targeting the treatment of NAFLD.
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Affiliation(s)
- Stergios A Polyzos
- Second Medical Clinic, Department of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece.
| | - Jannis Kountouras
- Second Medical Clinic, Department of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - Christos S Mantzoros
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Section of Endocrinology, Boston VA Healthcare System, Harvard Medical School, Boston, MA, USA
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Jamali R, Razavizade M, Arj A, Aarabi MH. Serum adipokines might predict liver histology findings in non-alcoholic fatty liver disease. World J Gastroenterol 2016; 22:5096-5103. [PMID: 27275102 PMCID: PMC4886385 DOI: 10.3748/wjg.v22.i21.5096] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 02/25/2016] [Accepted: 03/18/2016] [Indexed: 02/06/2023] Open
Abstract
AIM: To assess significance of serum adipokines to determine the histological severity of non-alcoholic fatty liver disease.
METHODS: Patients with persistent elevation in serum aminotransferase levels and well-defined characteristics of fatty liver at ultrasound were enrolled. Individuals with a history of alcohol consumption, hepatotoxic medication, viral hepatitis or known liver disease were excluded. Liver biopsy was performed to confirm non-alcoholic liver disease (NAFLD). The degrees of liver steatosis, lobular inflammation and fibrosis were determined based on the non-alcoholic fatty liver activity score (NAS) by a single expert pathologist. Patients with a NAS of five or higher were considered to have steatohepatitis. Those with a NAS of two or lower were defined as simple fatty liver. Binary logistic regression was used to determine the independent association of adipokines with histological findings. Receiver operating characteristic (ROC) analysis was employed to determine cut-off values of serum adipokines to discriminate the grades of liver steatosis, lobular inflammation and fibrosis.
RESULTS: Fifty-four participants aged 37.02 ± 9.82 were enrolled in the study. Higher serum levels of visfatin, IL-8, TNF-α levels were associated independently with steatosis grade of more than 33% [β = 1.08 (95%CI: 1.03-1.14), 1.04 (95%CI: 1.008-1.07), 1.04 (95%CI: 1.004-1.08), P < 0.05]. Elevated serum IL-6 and IL-8 levels were associated independently with advanced lobular inflammation [β = 1.4 (95%CI: 1.09-1.8), 1.07 (95%CI: 1.003-1.15), P < 0.05]. Similarly, higher TNF-α, resistin, and hepcidin levels were associated independently with advanced fibrosis stage [β = 1.06 (95%CI: 1.002-1.12), 19.86 (95%CI: 2.79-141.19), 560.72 (95%CI: 5.98-5255.33), P < 0.05]. Serum IL-8 and TNF-α values were associated independently with the NAS score, considering a NAS score of 5 as the reference value [β = 1.05 (95%CI: 1.01-1.1), 1.13 (95%CI: 1.04-1.22), P < 0.05].
CONCLUSION: Certain adipokines may determine the severity of NAFLD histology accurately.
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Jamali R, Hatami N, Kosari F. The Correlation Between Serum Adipokines and Liver Cell Damage in Non-Alcoholic Fatty Liver Disease. HEPATITIS MONTHLY 2016; 16:e37412. [PMID: 27313636 PMCID: PMC4906707 DOI: 10.5812/hepatmon.37412] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 03/07/2016] [Accepted: 03/18/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is a common cause of chronic hepatitis, which can lead to cirrhosis and hepatocellular carcinoma. OBJECTIVES The aim of the study was to evaluate the correlation between serum adipocytokines and the histologic findings of the liver in patients with non-alcoholic fatty liver disease (NAFLD). PATIENTS AND METHODS This case-control study was performed on those with persistent elevated liver enzymes and with evidence of fatty liver in ultrasonography. After exclusion of patients with other etiologies causing abnormal liver function tests, the resulting patients underwent liver biopsies. NAFLD was diagnosed based on liver histology according to the Brunt scoring system. RESULTS Waist circumferences and levels of blood glucose (after fasting), insulin, triglycerides, alanine aminotransferases (ALT), and aspartate aminotransferases (AST) were higher in patients with NAFLD than in those in the control group. ALT, AST, and gamma glutamine transferase (GGT) levels were lower in patients with liver steatosis of a grade of less than 33% than those with higher degrees of steatosis. Serum low-density lipoprotein (LDL), cholesterol, and hepcidin levels were significantly higher in those with lobular inflammation of grade 0 - 1 than in those with inflammation of grade 2 - 3 (Brunt score). Meanwhile, AST was significantly lower in those with lobular inflammation of grade 1 than in those with grade 2-3. Hepcidin and resistin levels were significantly higher in patients with moderate to severe fibrosis than in those with mild fibrosis. CONCLUSIONS It seems that surrogate liver function tests and adipocytokine levels were correlated with the histologic findings of the liver.
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Affiliation(s)
- Raika Jamali
- Research Development Center, Digestive Disease Research Institute, Sina Hospital, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Neda Hatami
- Sina Hospital, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Farid Kosari
- Department of Pathology, Sina Hospital, Tehran University of Medical Sciences, Tehran, IR Iran
- Corresponding Author: Farid Kosari, Department of Pathology, Sina Hospital, Tehran University of Medical Sciences, Tehran, IR Iran. Tel: +98-9123435346, E-mail:
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Bekaert M, Verhelst X, Geerts A, Lapauw B, Calders P. Association of recently described adipokines with liver histology in biopsy-proven non-alcoholic fatty liver disease: a systematic review. Obes Rev 2016; 17:68-80. [PMID: 26597657 DOI: 10.1111/obr.12333] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 09/11/2015] [Indexed: 12/25/2022]
Abstract
The prevalence of non-alcoholic fatty liver disease (NAFLD) is rising, as is the prevalence of obesity and type 2 diabetes. It is increasingly recognized that an impaired pattern in adipokine secretion could play a pivotal role in the development of NAFLD. We performed a systematic review to evaluate the potential link between newly described adipokines and liver histology in biopsy-proven NAFLD patients. A computerized literature search was performed in PubMed, EMBASE and Web of Science electronic databases. Thirty-one cross-sectional studies were included, resulting in a total of seven different investigated adipokines. Studies included in this review mainly had a good methodological quality. Most adipokines were suggested to be involved in the inflammatory response that develops within the context of NAFLD, either at hepatic or systemic level, and/or hepatic insulin resistance. Based on literature, clinical studies suggest that chemerin, resistin and adipocyte-fatty-acid-binding protein potentially are involved in NAFLD pathogenesis and/or progression. However, major inconsistency still exists, and there is a high need for larger studies, together with the need of standardized assays to determine adipokine levels.
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Affiliation(s)
- M Bekaert
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - X Verhelst
- Department of Gastroenterology and Hepatology, Ghent University Hospital, Ghent, Belgium
| | - A Geerts
- Department of Gastroenterology and Hepatology, Ghent University Hospital, Ghent, Belgium
| | - B Lapauw
- Department of Endocrinology, Ghent University Hospital, Ghent, Belgium
| | - P Calders
- Revalidation Science and Physiotherapy, Ghent University Hospital, Ghent, Belgium
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44
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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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45
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Vonghia L, Francque S. Cross talk of the immune system in the adipose tissue and the liver in non-alcoholic steatohepatitis: Pathology and beyond. World J Hepatol 2015; 7:1905-1912. [PMID: 26244065 PMCID: PMC4517150 DOI: 10.4254/wjh.v7.i15.1905] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 04/30/2015] [Accepted: 06/16/2015] [Indexed: 02/06/2023] Open
Abstract
Non-alcoholic steatohepatitis (NASH) is considered to be the hepatic manifestation of the metabolic syndrome, thus has a tight correlation with systemic metabolic impairment. The complex mechanisms underlying the pathogenesis of NASH involve different organs and systems that cross talk together contributing to the onset of NASH. A crucial role is played by inflammatory mediators, especially those deriving from the adipose tissue and the liver, which are involved in the cascade of inflammation, fibrosis and eventually tumorigenesis. In this setting cytokines and adipokines as well as immunity are emerging drivers of the key features of NASH. The immune system participates in this process with disturbances of the cells constituting both the innate and the adaptive immune systems that have been reported in different organs, such as in the liver and in the adipose tissue, in clinical and preclinical studies. The role of the immune system in NASH is increasingly studied, not only because of its contribution to the pathogenetic mechanisms of NASH but also because of the new potential therapeutic options it offers in this setting. Indeed, novel treatments acting on the immune system could offer new options in the management of NASH and the correlated clinical consequences.
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Abstract
As the result of various harmful effects (infectious agents, metabolic diseases, unhealthy diet, obesity, toxic agents, autoimmune processes) hepatic damage may develop, which can progress towards liver steatosis, and fibrosis as well. The most common etiological factors of liver damages are hepatitis B and C infection, alcohol consumption and non-alcoholic fatty liver disease. Liver biopsy is considered as the gold standard for the diagnosis of chronic liver diseases. Due to the dangers and complications of liver biopsy, studies are focused on non-invasive markers and radiological imaging for liver steatosis, progression of fatty liver, activity of the necroinflammation and the severity of the fibrosis. Authors review the possibilities of non-invasive assessment of liver steatosis. The statistical features of the probes (positive, negative predictive values, sensitivity, specificity) are reviewed. The role of radiological imaging is also discussed. Although the non-invasive methods discussed in this article are useful to assess liver steatosis, further studies are needed to validate to follow progression of the diseases and to control therapeutic response.
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Affiliation(s)
- Anna Egresi
- Semmelweis Egyetem, Általános Orvostudományi Kar II. Belgyógyászati Klinika Budapest Szentkirályi u. 46. 1088
| | - Gabriella Lengyel
- Semmelweis Egyetem, Általános Orvostudományi Kar II. Belgyógyászati Klinika Budapest Szentkirályi u. 46. 1088
| | - Krisztina Hagymási
- Semmelweis Egyetem, Általános Orvostudományi Kar II. Belgyógyászati Klinika Budapest Szentkirályi u. 46. 1088
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47
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Antiresistin RNA Oligonucleotide Ameliorates Diet-Induced Nonalcoholic Fatty Liver Disease in Mice through Attenuating Proinflammatory Cytokines. BIOMED RESEARCH INTERNATIONAL 2015; 2015:414860. [PMID: 25922835 PMCID: PMC4397480 DOI: 10.1155/2015/414860] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2015] [Revised: 02/19/2015] [Accepted: 03/10/2015] [Indexed: 02/08/2023]
Abstract
The aim of this study was to determine whether inhibition of resistin by a synthetic antiresistin RNA (oligonucleotide) oligo ameliorates metabolic and histological abnormalities in nonalcoholic fatty liver disease (NAFLD) induced by high-fat diet (HFD) in mice. The antiresistin RNA oligo and a scrambled control oligo (25 mg/kg of body weight) were i.p. injected to HFD mice. Serum metabolic parameters and hepatic enzymes were measured after 4-week treatment. The treatment significantly reduced epididymal fat and attenuated the elevated serum resistin, cholesterol, triglycerides, glucose, and insulin with an improved glucose tolerance test. Antiresistin RNA oligo also normalized serum AST and ALT levels with improved pathohistology of NAFLD. Immunoblotting and qRT-PCR revealed that decreased protein and mRNA expression of resistin in fat and liver tissues of the treated mice were associated with reduction of adipose TNF-α and IL-6 expression and secretion into circulation. mRNA and protein expression of hepatic phosphoenolpyruvate carboxykinase (PEPCK) and sterol regulatory element-binding protein-1c (SREBP-1c) were also significantly decreased in the treated mice. Our results suggest that resistin may exacerbate NAFLD in metabolic syndrome through upregulating inflammatory cytokines and hepatic PEPCK and SREBP-1c. Antiresistin RNA oligo ameliorated metabolic abnormalities and histopathology of NAFLD through attenuating proinflammatory cytokines.
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Maresca F, Palma VD, Bevilacqua M, Uccello G, Taglialatela V, Giaquinto A, Esposito G, Trimarco B, Cirillo P. Adipokines, Vascular Wall, and Cardiovascular Disease. Angiology 2015; 66:8-24. [DOI: 10.1177/0003319713520463] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
Epidemiological evidence has shown that abdominal obesity is closely associated with the development of cardiovascular (CV) disease, suggesting that it might be considered as an independent CV risk factor. However, the pathophysiological mechanisms responsible for the association between these 2 clinical entities remain largely unknown. Adipocytes are considered able to produce and secrete chemical mediators known as “adipokines” that may exert several biological actions, including those on heart and vessels. Of interest, a different adipokine profile can be observed in the plasma of patients with obesity or metabolic syndrome compared with healthy controls. We consider the main adipokines, focusing on their effects on the vascular wall and analyzing their role in CV pathophysiology.
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Affiliation(s)
- Fabio Maresca
- Department of Advanced Biomedical Sciences, Division of Cardiology, University of Naples, Naples, Italy
| | - Vito Di Palma
- Department of Advanced Biomedical Sciences, Division of Cardiology, University of Naples, Naples, Italy
| | - Michele Bevilacqua
- Department of Advanced Biomedical Sciences, Division of Cardiology, University of Naples, Naples, Italy
| | - Giuseppe Uccello
- Department of Advanced Biomedical Sciences, Division of Cardiology, University of Naples, Naples, Italy
| | - Vittorio Taglialatela
- Department of Advanced Biomedical Sciences, Division of Cardiology, University of Naples, Naples, Italy
| | - Alessandro Giaquinto
- Department of Advanced Biomedical Sciences, Division of Cardiology, University of Naples, Naples, Italy
| | - Giovanni Esposito
- Department of Advanced Biomedical Sciences, Division of Cardiology, University of Naples, Naples, Italy
| | - Bruno Trimarco
- Department of Advanced Biomedical Sciences, Division of Cardiology, University of Naples, Naples, Italy
| | - Plinio Cirillo
- Department of Advanced Biomedical Sciences, Division of Cardiology, University of Naples, Naples, Italy
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Polyzos SA, Kountouras J, Mantzoros CS. Leptin in nonalcoholic fatty liver disease: a narrative review. Metabolism 2015; 64:60-78. [PMID: 25456097 DOI: 10.1016/j.metabol.2014.10.012] [Citation(s) in RCA: 143] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 10/12/2014] [Accepted: 10/16/2014] [Indexed: 02/06/2023]
Abstract
Leptin, the first described adipokine, interplays with hepatic metabolism. The aim of this review was to summarize available data on the association between leptin and nonalcoholic fatty liver disease (NAFLD). Leptin has a potential dual action on NAFLD experimental models, exerting a possible anti-steatotic, but also a proinflammatory and profibrogenic action. Observational clinical studies have shown higher or similar leptin levels between simple steatosis and nonalcoholic steatohepatitis (NASH) compared with controls. Interventional studies showed that circulating leptin diminishes together with body mass index after successful weight loss following lifestyle modifications or bariatric surgery. Studies providing evidence for the effect of other medications on leptin levels in NAFLD populations are limited and of low power. Data from small studies claim that recombinant leptin administration had a possibly beneficial effect on steatosis, but not fibrosis, in NAFLD patients with hypoleptinemia. Although the aforementioned dual leptin action has not yet been validated in humans, leptin administration in NAFLD patients with normoleptinemia or hyperleptinemia is discouraged. Further well-controlled studies in cautiously selected populations are needed to elucidate whether leptin has any prognostic and therapeutic role in NAFLD patients.
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Affiliation(s)
- Stergios A Polyzos
- Second Medical Clinic, Department of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece; Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
| | - Jannis Kountouras
- Second Medical Clinic, Department of Medicine, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - Christos S Mantzoros
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
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50
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He Y, Li W, Li Y, Zhang S, Wang Y, Sun C. Ursolic acid increases glucose uptake through the PI3K signaling pathway in adipocytes. PLoS One 2014; 9:e110711. [PMID: 25329874 PMCID: PMC4203820 DOI: 10.1371/journal.pone.0110711] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 09/14/2014] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Ursolic acid (UA), a triterpenoid compound, is reported to have a glucose-lowering effect. However, the mechanisms are not fully understood. Adipose tissue is one of peripheral tissues that collectively control the circulating glucose levels. OBJECTIVE The objective of the present study was to determine the effect and further the mechanism of action of UA in adipocytes. METHODS AND RESULTS The 3T3-L1 preadipocytes were induced to differentiate and treated with different concentrations of UA. NBD-fluorescent glucose was used as the tracer to measure glucose uptake and Western blotting used to determine the expression and activity of proteins involved in glucose transport. It was found that 2.5, 5 and 10 µM of UA promoted glucose uptake in a dose-dependent manner (17%, 29% and 35%, respectively). 10 µM UA-induced glucose uptake with insulin stimulation was completely blocked by the phosphatidylinositol (PI) 3-kinase (PI3K) inhibitor wortmannin (1 µM), but not by SB203580 (10 µM), the inhibitor of mitogen-activated protein kinase (MAPK), or compound C (2.5 µM), the inhibitor of AMP-activated kinase (AMPK) inhibitor. Furthermore, the downstream protein activities of the PI3K pathway, phosphoinositide-dependent kinase (PDK) and phosphoinositide-dependent serine/threoninekinase (AKT) were increased by 10 µM of UA in the presence of insulin. Interestingly, the activity of AS160 and protein kinase C (PKC) and the expression of glucose transporter 4 (GLUT4) were stimulated by 10 µM of UA under either the basal or insulin-stimulated status. Moreover, the translocation of GLUT4 from cytoplasm to cell membrane was increased by UA but decreased when the PI3K inhibitor was applied. CONCLUSIONS Our results suggest that UA stimulates glucose uptake in 3T3-L1 adipocytes through the PI3K pathway, providing important information regarding the mechanism of action of UA for its anti-diabetic effect.
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Affiliation(s)
- Yonghan He
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, People’s Republic of China
- Aquatic and Crop Resource Development, Life Sciences Branch, National Research Council Canada, Charlottetown, Prince Edward Island, Canada
- State Key Laboratory of Genetic Resources and Evolution, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, People’s Republic of China
| | - Wen Li
- Department of Endocrinology, Third People's Hospital of Yunnan Province, Kunming, Yunnan, People’s Republic of China
| | - Ying Li
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, People’s Republic of China
| | - Shuocheng Zhang
- Aquatic and Crop Resource Development, Life Sciences Branch, National Research Council Canada, Charlottetown, Prince Edward Island, Canada
- Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Yanwen Wang
- Aquatic and Crop Resource Development, Life Sciences Branch, National Research Council Canada, Charlottetown, Prince Edward Island, Canada
- Department of Biomedical Sciences, University of Prince Edward Island, Charlottetown, Prince Edward Island, Canada
| | - Changhao Sun
- Department of Nutrition and Food Hygiene, Public Health College, Harbin Medical University, Harbin, Heilongjiang, People’s Republic of China
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