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Agarwal M, Roth K, Yang Z, Sharma R, Maddipati K, Westrick J, Petriello MC. Loss of flavin-containing monooxygenase 3 modulates dioxin-like polychlorinated biphenyl 126-induced oxidative stress and hepatotoxicity. ENVIRONMENTAL RESEARCH 2024; 250:118492. [PMID: 38373550 PMCID: PMC11102846 DOI: 10.1016/j.envres.2024.118492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/09/2024] [Accepted: 02/13/2024] [Indexed: 02/21/2024]
Abstract
Dioxin-like pollutants (DLPs), such as polychlorinated biphenyl 126 (PCB 126), are synthetic chemicals classified as persistent organic pollutants. They accumulate in adipose tissue and have been linked to cardiometabolic disorders, including fatty liver disease. The toxicity of these compounds is associated with activation of the aryl hydrocarbon receptor (Ahr), leading to the induction of phase I metabolizing enzyme cytochrome P4501a1 (Cyp1a1) and the subsequent production of reactive oxygen species (ROS). Recent research has shown that DLPs can also induce the xenobiotic detoxification enzyme flavin-containing monooxygenase 3 (FMO3), which plays a role in metabolic homeostasis. We hypothesized whether genetic deletion of Fmo3 could protect mice, particularly in the liver, where Fmo3 is most inducible, against PCB 126 toxicity. To test this hypothesis, male C57BL/6 wild-type (WT) mice and Fmo3 knockout (Fmo3 KO) mice were exposed to PCB 126 or vehicle (safflower oil) during a 12-week study, at weeks 2 and 4. Various analyses were performed, including hepatic histology, RNA-sequencing, and quantitation of PCB 126 and F2-isoprostane concentrations. The results showed that PCB 126 exposure caused macro and microvesicular fat deposition in WT mice, but this macrovesicular fatty change was absent in Fmo3 KO mice. Moreover, at the pathway level, the hepatic oxidative stress response was significantly different between the two genotypes, with the induction of specific genes observed only in WT mice. Notably, the most abundant F2-isoprostane, 8-iso-15-keto PGE2, increased in WT mice in response to PCB 126 exposure. The study's findings also demonstrated that hepatic tissue concentrations of PCB 126 were higher in WT mice compared to Fmo3 KO mice. In summary, the absence of FMO3 in mice led to a distinctive response to dioxin-like pollutant exposure in the liver, likely due to alterations in lipid metabolism and storage, underscoring the complex interplay of genetic factors in the response to environmental toxins.
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Affiliation(s)
- Manisha Agarwal
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA; Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Katherine Roth
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Zhao Yang
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Rahul Sharma
- Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA
| | - Krishnarao Maddipati
- Department of Pathology, Lipidomic Core Facility, Wayne State University, Detroit, MI, 48202, USA
| | - Judy Westrick
- Department of Chemistry, Lumigen Instrumentation Center, Wayne State University, Detroit, MI, 48202, USA
| | - Michael C Petriello
- Department of Pharmacology, School of Medicine, Wayne State University, Detroit, MI, 48202, USA; Institute of Environmental Health Sciences, Wayne State University, Detroit, MI, 48202, USA.
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2
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Maurotti S, Geirola N, Frosina M, Mirarchi A, Scionti F, Mare R, Montalcini T, Pujia A, Tirinato L. Exploring the impact of lipid droplets on the evolution and progress of hepatocarcinoma. Front Cell Dev Biol 2024; 12:1404006. [PMID: 38818407 PMCID: PMC11137176 DOI: 10.3389/fcell.2024.1404006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 04/29/2024] [Indexed: 06/01/2024] Open
Abstract
Over the past 10 years, the biological role of lipid droplets (LDs) has gained significant attention in the context of both physiological and pathological conditions. Considerable progress has been made in elucidating key aspects of these organelles, yet much remains to be accomplished to fully comprehend the myriad functions they serve in the progression of hepatic tumors. Our current perception is that LDs are complex and active structures managed by a distinct set of cellular processes. This understanding represents a significant paradigm shift from earlier perspectives. In this review, we aim to recapitulate the function of LDs within the liver, highlighting their pivotal role in the pathogenesis of metabolic dysfunction-associated steatotic liver disease (MASLD) (Hsu and Loomba, 2024) and their contribution to the progression towards more advanced pathological stages up to hepatocellular carcinoma (HC) (Farese and Walther, 2009). We are aware of the molecular complexity and changes occurring in the neoplastic evolution of the liver. Our attempt, however, is to summarize the most important and recent roles of LDs across both healthy and all pathological liver states, up to hepatocarcinoma. For more detailed insights, we direct readers to some of the many excellent reviews already available in the literature (Gluchowski et al., 2017; Hu et al., 2020; Seebacher et al., 2020; Paul et al., 2022).
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Affiliation(s)
- Samantha Maurotti
- Department of Clinical and Experimental Medicine, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Nadia Geirola
- Department of Clinical and Experimental Medicine, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Miriam Frosina
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Angela Mirarchi
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Francesca Scionti
- Department of Clinical and Experimental Medicine, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Rosario Mare
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Tiziana Montalcini
- Department of Clinical and Experimental Medicine, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Arturo Pujia
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
| | - Luca Tirinato
- Department of Medical and Surgical Sciences, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
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3
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Liu J, Liu X, Shan Y, Ting HJ, Yu X, Wang JW, Liu B. Targeted platelet with hydrogen peroxide responsive behavior for non-alcoholic steatohepatitis detection. Biomaterials 2024; 306:122506. [PMID: 38354517 DOI: 10.1016/j.biomaterials.2024.122506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/05/2024] [Accepted: 02/08/2024] [Indexed: 02/16/2024]
Abstract
The most common chronic liver illness, non-alcoholic fatty liver disease (NAFLD), refers to a range of abnormalities of the liver with varying degrees of steatosis. When the clinical symptoms including liver damage, inflammation, and fibrosis, are added to the initial steatosis, NAFLD becomes non-alcoholic steatohepatitis (NASH), the problematic and severe stage. The diagnosis of NASH at the right time could therefore effectively prevent deterioration of the disease. Considering that platelets (PLTs) could migrate to the sites of inflamed liver sinusoids with oxidative stress during the development of NASH, we purified the PLTs from fresh blood and engineered their surface with hydrogen peroxide (H2O2) responsive fluorescent probe (5-DP) through lipid fusion. The engineered PLT-DPs were recruited and trapped in the inflammation foci of the liver with NASH through interaction with the extracellular matrix, including hyaluronan and Kupffer cells. Additionally, the fluorescence of 5-DP on the surface of PLT-DP was significantly enhanced upon reacting with the elevated level of H2O2 in the NASH liver. Thus, PLT-DP has great promise for NASH fluorescence imaging with high selectivity and sensitivity.
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Affiliation(s)
- Jingjing Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore; Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, Jiangsu, 225001, China
| | - Xingang Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Yi Shan
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Hui Jun Ting
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Nanomedicine Translational Research Program, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117609, Singapore
| | - Xiaodong Yu
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Nanomedicine Translational Research Program, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117609, Singapore
| | - Jiong-Wei Wang
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore; Nanomedicine Translational Research Program, Centre for NanoMedicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117609, Singapore; Cardiovascular Research Institute, National University Heart Centre Singapore, Singapore 117599, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117593, Singapore
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore.
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Butcko AJ, Putman AK, Mottillo EP. The Intersection of Genetic Factors, Aberrant Nutrient Metabolism and Oxidative Stress in the Progression of Cardiometabolic Disease. Antioxidants (Basel) 2024; 13:87. [PMID: 38247511 PMCID: PMC10812494 DOI: 10.3390/antiox13010087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 12/06/2023] [Accepted: 01/07/2024] [Indexed: 01/23/2024] Open
Abstract
Cardiometabolic disease (CMD), which encompasses metabolic-associated fatty liver disease (MAFLD), chronic kidney disease (CKD) and cardiovascular disease (CVD), has been increasing considerably in the past 50 years. CMD is a complex disease that can be influenced by genetics and environmental factors such as diet. With the increased reliance on processed foods containing saturated fats, fructose and cholesterol, a mechanistic understanding of how these molecules cause metabolic disease is required. A major pathway by which excessive nutrients contribute to CMD is through oxidative stress. In this review, we discuss how oxidative stress can drive CMD and the role of aberrant nutrient metabolism and genetic risk factors and how they potentially interact to promote progression of MAFLD, CVD and CKD. This review will focus on genetic mutations that are known to alter nutrient metabolism. We discuss the major genetic risk factors for MAFLD, which include Patatin-like phospholipase domain-containing protein 3 (PNPLA3), Membrane Bound O-Acyltransferase Domain Containing 7 (MBOAT7) and Transmembrane 6 Superfamily Member 2 (TM6SF2). In addition, mutations that prevent nutrient uptake cause hypercholesterolemia that contributes to CVD. We also discuss the mechanisms by which MAFLD, CKD and CVD are mutually associated with one another. In addition, some of the genetic risk factors which are associated with MAFLD and CVD are also associated with CKD, while some genetic risk factors seem to dissociate one disease from the other. Through a better understanding of the causative effect of genetic mutations in CMD and how aberrant nutrient metabolism intersects with our genetics, novel therapies and precision approaches can be developed for treating CMD.
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Affiliation(s)
- Andrew J. Butcko
- Hypertension and Vascular Research Division, Henry Ford Hospital, 6135 Woodward Avenue, Detroit, MI 48202, USA; (A.J.B.); (A.K.P.)
- Department of Physiology, Wayne State University, 540 E. Canfield Street, Detroit, MI 48202, USA
| | - Ashley K. Putman
- Hypertension and Vascular Research Division, Henry Ford Hospital, 6135 Woodward Avenue, Detroit, MI 48202, USA; (A.J.B.); (A.K.P.)
- Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, 784 Wilson Road, East Lansing, MI 48823, USA
| | - Emilio P. Mottillo
- Hypertension and Vascular Research Division, Henry Ford Hospital, 6135 Woodward Avenue, Detroit, MI 48202, USA; (A.J.B.); (A.K.P.)
- Department of Physiology, Wayne State University, 540 E. Canfield Street, Detroit, MI 48202, USA
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5
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Šmíd V, Dvořák K, Stehnová K, Strnad H, Rubert J, Stříteský J, Staňková B, Stránská M, Hajšlová J, Brůha R, Vítek L. The Ameliorating Effects of n-3 Polyunsaturated Fatty Acids on Liver Steatosis Induced by a High-Fat Methionine Choline-Deficient Diet in Mice. Int J Mol Sci 2023; 24:17226. [PMID: 38139055 PMCID: PMC10743075 DOI: 10.3390/ijms242417226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/02/2023] [Accepted: 12/03/2023] [Indexed: 12/24/2023] Open
Abstract
The pathogenesis of non-alcoholic fatty liver disease (NAFLD) is associated with abnormalities of liver lipid metabolism. On the contrary, a diet enriched with n-3 polyunsaturated fatty acids (n-3-PUFAs) has been reported to ameliorate the progression of NAFLD. The aim of our study was to investigate the impact of dietary n-3-PUFA enrichment on the development of NAFLD and liver lipidome. Mice were fed for 6 weeks either a high-fat methionine choline-deficient diet (MCD) or standard chow with or without n-3-PUFAs. Liver histology, serum biochemistry, detailed plasma and liver lipidomic analyses, and genome-wide transcriptome analysis were performed. Mice fed an MCD developed histopathological changes characteristic of NAFLD, and these changes were ameliorated with n-3-PUFAs. Simultaneously, n-3-PUFAs decreased serum triacylglycerol and cholesterol concentrations as well as ALT and AST activities. N-3-PUFAs decreased serum concentrations of saturated and monounsaturated free fatty acids (FAs), while increasing serum concentrations of long-chain PUFAs. Furthermore, in the liver, the MCD significantly increased the hepatic triacylglycerol content, while the administration of n-3-PUFAs eliminated this effect. Administration of n-3-PUFAs led to significant beneficial differences in gene expression within biosynthetic pathways of cholesterol, FAs, and pro-inflammatory cytokines (IL-1 and TNF-α). To conclude, n-3-PUFA supplementation appears to represent a promising nutraceutical approach for the restoration of abnormalities in liver lipid metabolism and the prevention and treatment of NAFLD.
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Affiliation(s)
- Václav Šmíd
- 4th Department of Internal Medicine, 1st Faculty of Medicine, Charles University in Prague and General University Hospital, 128 08 Prague, Czech Republic (R.B.); (L.V.)
| | - Karel Dvořák
- 4th Department of Internal Medicine, 1st Faculty of Medicine, Charles University in Prague and General University Hospital, 128 08 Prague, Czech Republic (R.B.); (L.V.)
| | - Kamila Stehnová
- Department of Food Analysis and Nutrition, University of Chemistry and Technology, 166 28 Prague, Czech Republic; (K.S.); (J.R.); (J.H.)
| | - Hynek Strnad
- Laboratory of Genomics and Bioinformatics, Institute of Molecular Genetics of the Czech Academy of Sciences, 142 20 Prague, Czech Republic
| | - Josep Rubert
- Department of Food Analysis and Nutrition, University of Chemistry and Technology, 166 28 Prague, Czech Republic; (K.S.); (J.R.); (J.H.)
| | - Jan Stříteský
- Institute of Pathology, 1st Faculty of Medicine, Charles University in Prague and General University Hospital, 128 00 Prague, Czech Republic;
| | - Barbora Staňková
- 4th Department of Internal Medicine, 1st Faculty of Medicine, Charles University in Prague and General University Hospital, 128 08 Prague, Czech Republic (R.B.); (L.V.)
- Institute of Medical Biochemistry and Laboratory Diagnostics, 1st Faculty of Medicine, Charles University in Prague and General University Hospital, 128 08 Prague, Czech Republic
| | - Milena Stránská
- Department of Food Analysis and Nutrition, University of Chemistry and Technology, 166 28 Prague, Czech Republic; (K.S.); (J.R.); (J.H.)
| | - Jana Hajšlová
- Department of Food Analysis and Nutrition, University of Chemistry and Technology, 166 28 Prague, Czech Republic; (K.S.); (J.R.); (J.H.)
| | - Radan Brůha
- 4th Department of Internal Medicine, 1st Faculty of Medicine, Charles University in Prague and General University Hospital, 128 08 Prague, Czech Republic (R.B.); (L.V.)
| | - Libor Vítek
- 4th Department of Internal Medicine, 1st Faculty of Medicine, Charles University in Prague and General University Hospital, 128 08 Prague, Czech Republic (R.B.); (L.V.)
- Institute of Medical Biochemistry and Laboratory Diagnostics, 1st Faculty of Medicine, Charles University in Prague and General University Hospital, 128 08 Prague, Czech Republic
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Joó JG, Sulyok E, Bódis J, Kornya L. Disrupted Balance of the Oxidant-Antioxidant System in the Pathophysiology of Female Reproduction: Oxidative Stress and Adverse Pregnancy Outcomes. Curr Issues Mol Biol 2023; 45:8091-8111. [PMID: 37886954 PMCID: PMC10605220 DOI: 10.3390/cimb45100511] [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: 09/12/2023] [Revised: 09/29/2023] [Accepted: 10/02/2023] [Indexed: 10/28/2023] Open
Abstract
The significance of oxidative stress in the pathophysiology of male reproductive processes has been closely studied in the last two decades. Recently, it has become clear that oxidative stress can lead to numerous pathological conditions during female reproductive processes as well, contributing to the development of endometriosis, polycystic ovary syndrome and various forms of infertility. During pregnancy, physiological generation of reactive oxygen species (ROS) occurs in association with several developmental processes including oocyte maturation and implantation. An overproduction of ROS can lead to disturbances in fetal development and increases the risk for missed abortion, intrauterine growth restriction, pre-eclampsia, premature delivery and gestational diabetes. Our review focuses on the etiological role of the disrupted oxidant-antioxidant system during human gestation as it relates to adverse pregnancy outcomes.
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Affiliation(s)
- József Gábor Joó
- Department of Obstetrics and Gynecology, Semmelweis University, 1088 Budapest, Hungary
| | - Endre Sulyok
- Faculty of Health Sciences, University of Pécs, 7621 Pécs, Hungary
| | - József Bódis
- Faculty of Health Sciences, University of Pécs, 7621 Pécs, Hungary
| | - László Kornya
- Central Hospital of South Pest National Institute of Hematology and Infectious Diseases, 1476 Budapest, Hungary
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Li ZM, Kong CY, Mao YQ, Chen HL, Zhang SL, Huang JT, Yao JQ, Cai PR, Xie N, Han B, Wang LS. Host ALDH2 deficiency aggravates nonalcoholic steatohepatitis through gut-liver axis. Pharmacol Res 2023; 196:106902. [PMID: 37657657 DOI: 10.1016/j.phrs.2023.106902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/25/2023] [Accepted: 08/29/2023] [Indexed: 09/03/2023]
Abstract
Nonalcoholic steatohepatitis (NASH) is the major cause of liver dysfunction. Animal and population studies have shown that mitochondrial aldehyde dehydrogenase (ALDH2) is implicated in fatty liver disease. However, the role of ALDH2 in NASH and the underlying mechanisms remains unclear. To address this issue, ALDH2 knockout (ALDH2-/-) mice and wild-type littermate mice were fed a methionine-and choline-deficient (MCD) diet to induce a NASH model. Fecal, serum, and liver samples were collected and analyzed to investigate the impact of the gut microbiota and bile acids on this process. We found that MCD-fed ALDH2-/- mice exhibited increased serum pro-inflammation cytokines, hepatic inflammation and fat accumulation than their wild-type littermates. MCD-fed ALDH2-/- mice exhibited worsened MCD-induced intestinal inflammation and barrier damage, and gut microbiota disorder. Furthermore, mice receiving microbiota from MCD-fed ALDH2-/- mice had increased severity of NASH compared to those receiving microbiota from MCD-fed wild-type mice. Notably, the intestinal Lactobacillus was significantly reduced in MCD-fed ALDH2-/- mice, and gavage with Lactobacillus cocktail significantly improved MCD-induced NASH. Finally, we found that ALDH2-/- mice had reduced levels of bile salt hydrolase and specific bile acids, especially lithocholic acid (LCA), accompanied by downregulated expression of the intestinal FXR-FGF15 pathway. Supplementation of LCA in ALDH2-/- mice upregulated intestinal FXR-FGF15 pathway and alleviated NASH. In summary, ALDH2 plays a critical role in the development of NASH through modulation of gut microbiota and bile acid. The findings suggest that supplementing with Lactobacillus or LCA could be a promising therapeutic approach for treating NASH exacerbated by ALDH2 deficiency.
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Affiliation(s)
- Zhan-Ming Li
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Chao-Yue Kong
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Yu-Qin Mao
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Hui-Ling Chen
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Shi-Long Zhang
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Jia-Ting Huang
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Jin-Qing Yao
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Pei-Ran Cai
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Nuo Xie
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Bing Han
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
| | - Li-Shun Wang
- Center for traditional Chinese medicine and gut microbiota, Minhang Hospital, Fudan University, 201199 Shanghai, China; Institute of Fudan-Minhang Academic Health System, Minhang Hospital, Fudan University, 201199 Shanghai, China.
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Robea MA, Balmus IM, Girleanu I, Huiban L, Muzica C, Ciobica A, Stanciu C, Cimpoesu CD, Trifan A. Coagulation Dysfunctions in Non-Alcoholic Fatty Liver Disease-Oxidative Stress and Inflammation Relevance. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1614. [PMID: 37763733 PMCID: PMC10535217 DOI: 10.3390/medicina59091614] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/29/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is one of the most common liver diseases. Its incidence is progressively rising and it is possibly becoming a worldwide epidemic. NAFLD encompasses a spectrum of diseases accounting for the chronic accumulation of fat within the hepatocytes due to various causes, excluding excessive alcohol consumption. In this study, we aimed to focus on finding evidence regarding the implications of oxidative stress and inflammatory processes that form the multifaceted pathophysiological tableau in relation to thrombotic events that co-occur in NAFLD and associated chronic liver diseases. Recent evidence on the pathophysiology of NAFLD suggests that a complex pattern of multidirectional components, such as prooxidative, proinflammatory, and prothrombotic components, better explains the multiple factors that promote the mechanisms underlying the fatty acid excess and subsequent processes. As there is extensive evidence on the multi-component nature of NAFLD pathophysiology, further studies could address the complex interactions that underlie the development and progression of the disease. Therefore, this study aimed to describe possible pathophysiological mechanisms connecting the molecular impairments with the various clinical manifestations, focusing especially on the interactions among oxidative stress, inflammation, and coagulation dysfunctions. Thus, we described the possible bidirectional modulation among coagulation homeostasis, oxidative stress, and inflammation that occurs in the various stages of NAFLD.
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Affiliation(s)
- Madalina Andreea Robea
- CENEMED Platform for Interdisciplinary Research, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (M.A.R.); (I.-M.B.); (C.D.C.)
| | - Ioana-Miruna Balmus
- CENEMED Platform for Interdisciplinary Research, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (M.A.R.); (I.-M.B.); (C.D.C.)
- Department of Exact Sciences and Natural Sciences, Institute of Interdisciplinary Research, “Alexandru Ioan Cuza” University of Iasi, Alexandru Lapusneanu Street, No. 26, 700057 Iasi, Romania
| | - Irina Girleanu
- Department of Gastroenterology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.G.); (L.H.); (C.M.); (A.T.)
- Institute of Gastroenterology and Hepatology, “St. Spiridon” University Hospital, 700111 Iasi, Romania
| | - Laura Huiban
- Department of Gastroenterology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.G.); (L.H.); (C.M.); (A.T.)
- Institute of Gastroenterology and Hepatology, “St. Spiridon” University Hospital, 700111 Iasi, Romania
| | - Cristina Muzica
- Department of Gastroenterology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.G.); (L.H.); (C.M.); (A.T.)
- Institute of Gastroenterology and Hepatology, “St. Spiridon” University Hospital, 700111 Iasi, Romania
| | - Alin Ciobica
- Department of Biology, Faculty of Biology, “Alexandru Ioan Cuza” University, Carol I Avenue, No. 20A, 700505 Iasi, Romania
- Centre of Biomedical Research, Romanian Academy, Carol I Avenue, No. 8, 700506 Iasi, Romania;
- Academy of Romanian Scientists, Splaiul Independentei nr. 54, Sector 5, 050094 Bucuresti, Romania
| | - Carol Stanciu
- Centre of Biomedical Research, Romanian Academy, Carol I Avenue, No. 8, 700506 Iasi, Romania;
| | - Carmen Diana Cimpoesu
- CENEMED Platform for Interdisciplinary Research, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (M.A.R.); (I.-M.B.); (C.D.C.)
- Department of Emergency Medicine, Emergency County Hospital “Sf. Spiridon”, 700111 Iasi, Romania
- Faculty of Medicine, University of Medicine and Pharmacy “Grigore T. Popa” Iasi, Blvd. Independentei 1, 700111 Iasi, Romania
| | - Anca Trifan
- Department of Gastroenterology, “Grigore T. Popa” University of Medicine and Pharmacy, 700115 Iasi, Romania; (I.G.); (L.H.); (C.M.); (A.T.)
- Institute of Gastroenterology and Hepatology, “St. Spiridon” University Hospital, 700111 Iasi, Romania
- Centre of Biomedical Research, Romanian Academy, Carol I Avenue, No. 8, 700506 Iasi, Romania;
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9
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Chang C, Li H, Zhang R. Zebrafish facilitate non-alcoholic fatty liver disease research: Tools, models and applications. Liver Int 2023; 43:1385-1398. [PMID: 37122203 DOI: 10.1111/liv.15601] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 05/02/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) has become an increasingly epidemic metabolic disease worldwide. NAFLD can gradually deteriorate from simple liver steatosis, inflammation and fibrosis to liver cirrhosis and/or hepatocellular carcinoma. Zebrafish are vertebrate animal models that are genetically and metabolically conserved with mammals and have unique advantages such as high fecundity, rapid development ex utero and optical transparency. These features have rendered zebrafish an emerging model system for liver diseases and metabolic diseases favoured by many researchers in recent years. In the present review, we summarize a series of tools for zebrafish NAFLD research and the models established through different dietary feeding, hepatotoxic chemical treatments and genetic manipulations via transgenic or genome editing technologies. We also discuss how zebrafish models facilitate NAFLD studies by providing novel insights into NAFLD pathogenesis, toxicology research, and drug evaluation and discovery.
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Affiliation(s)
- Cheng Chang
- School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Huicong Li
- School of Basic Medical Sciences, Wuhan University, Wuhan, China
| | - Ruilin Zhang
- School of Basic Medical Sciences, Wuhan University, Wuhan, China
- Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan, China
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10
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Abasilim C, Persky V, Turyk ME. Association of Blood Total Mercury with Dyslipidemia in a sample of U.S. Adolescents: Results from the National Health and Nutrition Examination Survey Database, 2011-2018. HYGIENE AND ENVIRONMENTAL HEALTH ADVANCES 2023; 6:100047. [PMID: 38617034 PMCID: PMC11014419 DOI: 10.1016/j.heha.2023.100047] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Background Abnormal lipid profiles in adolescents predict metabolic and cardiovascular diseases in adulthood. While seafood consumption is the primary source of mercury exposure, it also provides beneficial nutrients such as omega-3 fatty acids (O3FA). Prior studies indicate that blood total mercury (TBHg) has endocrine disrupting effects and may be associated with abnormal lipid profiles in adolescents. However, the impact of beneficial nutrients on this relationship has not been examined. Our study investigated the relationship of TBHg with dyslipidemia and lipid profiles and potential confounding and modification of these relationships by sex, body mass index (BMI), selenium and O3FA from seafood consumption. Methods We examined 1,390 National Health and Nutrition Examination Survey participants 12-19 years of age from the 2011-2018 cycles. Using logistic and linear regression adjusted for survey design variables and stratified by sex a priori, we estimated the associations of TBHg and methylmercury with dyslipidemia, and with total cholesterol (TC), high (HDL-C) and low-density lipoprotein cholesterol (LDL-C) and triglycerides. Results The geometric mean of TBHg in this adolescent population was 0.44 μg/L. After controlling for socio-demographic covariates, BMI, serum selenium, age at menarche (females only) and average daily intake of O3FA; TBHg was significantly associated with higher TC levels (β=3.34, 95% CI: 0.19, 6.50; p<0.05) in females but not males. Methyl Hg was also associated with increased TC, as well as decreased HDL-C in females but not males. We did not find significant associations of Hg exposure with dyslipidemia, LDL-C or triglycerides levels in either male or female adolescents. However, we observed evidence of effect modification by BMI and serum selenium for associations of TBHg with TC levels in male and female adolescents, respectively. Conclusion Our findings of elevated TC levels in females but not males necessitates further research to better understand the underlying mechanisms driving these sex-specific associations.
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Affiliation(s)
- Chibuzor Abasilim
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL
| | - Victoria Persky
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL
| | - Mary E. Turyk
- Division of Epidemiology and Biostatistics, School of Public Health, University of Illinois Chicago, Chicago, IL
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Li Y, Sun M, Su S, Qi X, Liu S, Pan T, Zhou L, Li Y. Tuberostemonine alleviates high-fat diet-induced obesity and hepatic steatosis by increasing energy consumption. Chem Biol Interact 2023:110545. [PMID: 37236577 DOI: 10.1016/j.cbi.2023.110545] [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: 03/15/2023] [Revised: 04/28/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023]
Abstract
Obesity is of public concern worldwide, and it increases the probability of developing a number of comorbid diseases, including NAFLD. Recent research on obesity drugs and health demands have shown the potential of natural plant extracts for preventing and treating obesity and their lack of toxicity and treatment-related side effects. We have demonstrated that tuberostemonine (TS), an alkaloid extracted from the traditional Chinese medicine Stemona tuberosa Lour can inhibit intracellular fat deposition, reduce oxidative stress, increase cellular adenosine triphosphate (ATP), and increase mitochondrial membrane potential. It effectively reduced weight gain and fat accumulation caused by a high-fat diet, and regulated liver function and blood lipid levels. Moreover, it regulate glucose metabolism and improved energy metabolism in mice. TS also decreased high-fat diet-induced obesity and improved lipid and glucose metabolism disorders in mice, with no significant side effects. In conclusion, TS was shown to be a safe alternative for obese patients and might be developed as an antiobesity and anti-nonalcoholic fatty liver drug.
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Affiliation(s)
- Yu Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources, College of Animal Science and Technology, Guangxi University, Nanning, 530004, PR China
| | - Mingjie Sun
- State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources, College of Animal Science and Technology, Guangxi University, Nanning, 530004, PR China
| | - Songtao Su
- State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources, College of Animal Science and Technology, Guangxi University, Nanning, 530004, PR China
| | - Xinyi Qi
- State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources, College of Animal Science and Technology, Guangxi University, Nanning, 530004, PR China
| | - Siqi Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources, College of Animal Science and Technology, Guangxi University, Nanning, 530004, PR China
| | - Tingli Pan
- State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources, College of Animal Science and Technology, Guangxi University, Nanning, 530004, PR China
| | - Lei Zhou
- State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources, College of Animal Science and Technology, Guangxi University, Nanning, 530004, PR China
| | - Yixing Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agrobioresources, College of Animal Science and Technology, Guangxi University, Nanning, 530004, PR China.
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12
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Komatsu M, Tanaka N, Kimura T, Yazaki M. Citrin Deficiency: Clinical and Nutritional Features. Nutrients 2023; 15:nu15102284. [PMID: 37242166 DOI: 10.3390/nu15102284] [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: 01/22/2023] [Revised: 05/06/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
SLC25A13 gene mutations are responsible for diseases related to citrin deficiency (CD), such as neonatal intrahepatic cholestasis caused by citrin deficiency and adult-onset type II citrullinemia (CTLN2). From childhood to adulthood, CD patients are apparently healthy due to metabolic compensation with peculiar dietary habits-disliking high-carbohydrate foods and liking fat and protein-rich foods. Carbohydrate overload and alcohol consumption may trigger the sudden onset of CTLN2, inducing hyperammonemia and consciousness disturbance. Well-compensated asymptomatic CD patients are sometimes diagnosed as having non-obese (lean) non-alcoholic fatty liver disease and steatohepatitis, which have the risk of developing into liver cirrhosis and hepatocellular carcinoma. CD-induced fatty liver demonstrates significant suppression of peroxisome proliferator-activated receptor α and its downstream enzymes/proteins involved in fatty acid transport and oxidation and triglyceride secretion as a very low-density lipoprotein. Nutritional therapy is an essential and important treatment of CD, and medium-chain triglycerides oil and sodium pyruvate are useful for preventing hyperammonemia. We need to avoid the use of glycerol for treating brain edema by hyperammonemia. This review summarizes the clinical and nutritional features of CD-associated fatty liver disease and promising nutritional interventions.
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Affiliation(s)
- Michiharu Komatsu
- Department of Gastroenterology, Suwa Red Cross Hospital, Suwa 392-8510, Nagano, Japan
| | - Naoki Tanaka
- Department of Global Medical Research Promotion, Shinshu University Graduate School of Medicine, Matsumoto 390-8621, Nagano, Japan
- International Relations Office, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan
- Research Center for Social Systems, Shinshu University, Matsumoto 390-8621, Nagano, Japan
| | - Takefumi Kimura
- Department of Gastroenterology, Shinshu University School of Medicine, Matsumoto 390-8621, Nagano, Japan
| | - Masahide Yazaki
- Department of Neuro-Health Innovation, Institute for Biomedical Sciences, Shinshu University, Matsumoto 390-8621, Nagano, Japan
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Chen H, Tan H, Wan J, Zeng Y, Wang J, Wang H, Lu X. PPAR-γ signaling in nonalcoholic fatty liver disease: Pathogenesis and therapeutic targets. Pharmacol Ther 2023; 245:108391. [PMID: 36963510 DOI: 10.1016/j.pharmthera.2023.108391] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 03/20/2023] [Accepted: 03/20/2023] [Indexed: 03/26/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD), currently the leading cause of global chronic liver disease, has emerged as a major public health problem, more efficient therapeutics of which are thus urgently needed. Peroxisome proliferator-activated receptor γ (PPAR-γ), ligand-activated transcription factors of the nuclear hormone receptor superfamily, is considered a crucial metabolic regulator of hepatic lipid metabolism and inflammation. The role of PPAR-γ in the pathogenesis of NAFLD is gradually being recognized. Here, we outline the involvement of PPAR-γ in the pathogenesis of NAFLD through adipogenesis, insulin resistance, inflammation, oxidative stress, endoplasmic reticulum stress, and fibrosis. In addition, the evidence for PPAR-γ- targeted therapy for NAFLD are summarized. Altogether, PPAR-γ is a promising therapeutic target for NAFLD, and the development of drugs that can balance the beneficial and undesirable effects of PPAR-γ will bring new light to NAFLD patients.
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Affiliation(s)
- Hao Chen
- Department of Liver Surgery and Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Huabing Tan
- Department of Infectious Diseases, Liver Disease Laboratory, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Juan Wan
- West China Center of Excellence for Pancreatitis, Institute of Integrated Traditional Chinese and Western Medicine / West China School of Nursing, Sichuan University, Chengdu, China
| | - Yong Zeng
- Department of Liver Surgery and Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Jincheng Wang
- Department of General Surgery, Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Haichuan Wang
- Department of Liver Surgery and Laboratory of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China; Department of Bioengineering and Therapeutic Sciences and Liver Center, University of California, San Francisco, CA, USA.
| | - Xiaojie Lu
- Department of General Surgery, Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China.
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Tong Y, Yu X, Huang Y, Zhang Z, Mi L, Bao Z. Hepatic-Targeted Nano-enzyme with Resveratrol Loading for Precise Relief of Nonalcoholic Steatohepatitis. ChemMedChem 2023; 18:e202200468. [PMID: 36380399 DOI: 10.1002/cmdc.202200468] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 11/09/2022] [Accepted: 11/10/2022] [Indexed: 11/17/2022]
Abstract
Nonalcoholic steatohepatitis (NASH) is characterized by massive lipid deposition in hepatocytes and is often associated with hepatic inflammation and other severe metabolic syndromes. The intervention of NASH can prevent its further progression into hepatocarcinoma. In this study we have successfully constructed liver-targeted Ce-based hollow mesoporous nanocarriers loaded with bioactive drugs. This may provide an effective approach for eliminating NASH. Liver-section-specific targeting was realized by covalently linked galactose (Gal), which can be specifically recognized by receptors in the membranes of hepatocytes. Meanwhile, resveratrol (Res), a drug used to treat NASH, was efficiently loaded into the pores and cavity of CeO2 (Res@H-CeO2 -Gal). In steatotic HepG2 cells (free fatty acid induction), this nanosystem was found to enhance cellular Res internalization for improved anti-lipogenesis activity. In mice with NASH, Res@H-CeO2 -Gal increased Res delivery to liver sections for a reduction in lipid accumulation and enhanced anti-inflammatory activity from the antioxidant capacity of Ce-based nanocarriers. This effectively recovered NASH mice to the normal state. These findings show that the hepatic targeting and Res delivery nanoplatform could act as a safe and promising strategy for the elimination of NASH and other liver diseases.
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Affiliation(s)
- Yili Tong
- Department of General Practice, Huadong Hospital Affiliated to Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Xiaofeng Yu
- Department of General Practice, Huadong Hospital Affiliated to Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Yiqin Huang
- Department of General Practice, Huadong Hospital Affiliated to Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Ziyan Zhang
- Department of General Practice, Huadong Hospital Affiliated to Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Lin Mi
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
| | - Zhijun Bao
- Department of Gastroenterology, Huadong Hospital Affiliated to Fudan University, No. 221 West Yan'an Road, Shanghai, 200040, P.R. China
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Shi X, Tian Y, Zhai S, Liu Y, Chu S, Xiong Z. The progress of research on the application of redox nanomaterials in disease therapy. Front Chem 2023; 11:1115440. [PMID: 36814542 PMCID: PMC9939781 DOI: 10.3389/fchem.2023.1115440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Accepted: 01/23/2023] [Indexed: 02/08/2023] Open
Abstract
Redox imbalance can trigger cell dysfunction and damage and plays a vital role in the origin and progression of many diseases. Maintaining the balance between oxidants and antioxidants in vivo is a complicated and arduous task, leading to ongoing research into the construction of redox nanomaterials. Nanodrug platforms with redox characteristics can not only reduce the adverse effects of oxidative stress on tissues by removing excess oxidants from the body but also have multienzyme-like activity, which can play a cytotoxic role in tumor tissues through the catalytic oxidation of their substrates to produce harmful reactive oxygen species such as hydroxyl radicals. In this review, various redox nanomaterials currently used in disease therapy are discussed, emphasizing the treatment methods and their applications in tumors and other human tissues. Finally, the limitations of the current clinical application of redox nanomaterials are considered.
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Affiliation(s)
- Xiaolu Shi
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Ye Tian
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Shaobo Zhai
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Yang Liu
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China
| | - Shunli Chu
- Department of Implantology, Hospital of Stomatology, Jilin University, Changchun, China,*Correspondence: Shunli Chu, ; Zhengrong Xiong,
| | - Zhengrong Xiong
- Polymer Composites Engineering Laboratory, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CAS), Changchun, China,Department of Applied Chemistry, University of Science and Technology of China, Hefei, China,*Correspondence: Shunli Chu, ; Zhengrong Xiong,
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16
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Oxidative Stress Modulation by ncRNAs and Their Emerging Role as Therapeutic Targets in Atherosclerosis and Non-Alcoholic Fatty Liver Disease. Antioxidants (Basel) 2023; 12:antiox12020262. [PMID: 36829822 PMCID: PMC9952114 DOI: 10.3390/antiox12020262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 01/27/2023] Open
Abstract
Atherosclerosis and non-alcoholic fatty liver disease (NAFLD) are pathologies related to ectopic fat accumulation, both of which are continuously increasing in prevalence. These threats are prompting researchers to develop effective therapies for their clinical management. One of the common pathophysiological alterations that underlies both diseases is oxidative stress (OxS), which appears as a result of lipid deposition in affected tissues. However, the molecular mechanisms that lead to OxS generation are different in each disease. Non-coding RNAs (ncRNAs) are RNA transcripts that do not encode proteins and function by regulating gene expression. In recent years, the involvement of ncRNAs in OxS modulation has become more recognized. This review summarizes the most recent advances regarding ncRNA-mediated regulation of OxS in atherosclerosis and NAFLD. In both diseases, ncRNAs can exert pro-oxidant or antioxidant functions by regulating gene targets and even other ncRNAs, positioning them as potential therapeutic targets. Interestingly, both diseases have common altered ncRNAs, suggesting that the same molecule can be targeted simultaneously when both diseases coexist. Finally, since some ncRNAs have already been used as therapeutic agents, their roles as potential drugs for the clinical management of atherosclerosis and NAFLD are analyzed.
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Di Ciaula A, Shanmugam H, Ribeiro R, Pina A, Andrade R, Bonfrate L, Raposo JF, Macedo MP, Portincasa P. Liver fat accumulation more than fibrosis causes early liver dynamic dysfunction in patients with non-alcoholic fatty liver disease. Eur J Intern Med 2023; 107:52-59. [PMID: 36344354 DOI: 10.1016/j.ejim.2022.10.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 10/25/2022] [Accepted: 10/28/2022] [Indexed: 11/06/2022]
Abstract
INTRODUCTION In Non-Alcoholic Fatty Liver Disease (NAFLD), events driving early hepatic dysfunction with respect to specific metabolic pathways are still poorly known. METHODS We enrolled 84 subjects with obesity and/or type 2 diabetes (T2D). FibroScan® served to assess NAFLD by controlled attenuation parameter (CAP), and fibrosis by liver stiffness (LS). Patients with LS above 7 kPa were excluded. APRI and FIB-4 were used as additional serum biomarkers of fibrosis. The stable-isotope dynamic breath test was used to assess the hepatic efficiency of portal extraction (as DOB15) and microsomal metabolization (as cPDR30) of orally-administered (13C)-methacetin. RESULTS NAFLD occurred in 45%, 65.9%, and 91.3% of normal weight, overweight, and obese subjects, respectively. Biomarkers of liver fibrosis were comparable across subgroups, and LS was higher in obese, than in normal weight subjects. DOB15 was 23.2 ± 1.5‰ in normal weight subjects, tended to decrease in overweight (19.9 ± 1.0‰) and decreased significantly in obese subjects (16.9 ± 1.3, P = 0.008 vs. normal weight). Subjects with NAFLD had lower DOB15 (18.7 ± 0.9 vs. 22.1 ± 1.2, P = 0.03) but higher LS (4.7 ± 0.1 vs. 4.0 ± 0.2 kPa, P = 0.0003) than subjects without NAFLD, irrespective of fibrosis. DOB15 (but not cPDR30) decreased with increasing degree of NAFLD (R = -0.26; P = 0.01) and LS (R = -0.23, P = 0.03). Patients with T2D showed increased rate of NAFLD than those without T2D but similar LS, DOB15 and cPDR30. CONCLUSIONS Overweight, obesity and liver fat accumulation manifest with deranged portal extraction efficiency of methacetin into the steatotic hepatocyte. This functional alteration occurs early, and irrespective of significant fibrosis and presence of T2D.
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Affiliation(s)
- Agostino Di Ciaula
- Clinica Medica "A. Murri", Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Medical School, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Harshitha Shanmugam
- Clinica Medica "A. Murri", Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Medical School, Piazza Giulio Cesare 11, Bari 70124, Italy
| | - Rogério Ribeiro
- Portuguese Diabetes Association-Education and Research Center (APDP-ERC), Lisbon 1150-082, Portugal
| | - Ana Pina
- iNOVA4Health, NOVA Medical School|Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisboa 1169-056, Portugal
| | - Rita Andrade
- Portuguese Diabetes Association-Education and Research Center (APDP-ERC), Lisbon 1150-082, Portugal
| | - Leonilde Bonfrate
- Clinica Medica "A. Murri", Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Medical School, Piazza Giulio Cesare 11, Bari 70124, Italy.
| | - João F Raposo
- iNOVA4Health, NOVA Medical School|Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisboa 1169-056, Portugal; Portuguese Diabetes Association-Education and Research Center (APDP-ERC), Lisbon 1150-082, Portugal
| | - M Paula Macedo
- iNOVA4Health, NOVA Medical School|Faculdade de Ciências Médicas, NMS|FCM, Universidade Nova de Lisboa, Lisboa 1169-056, Portugal; Portuguese Diabetes Association-Education and Research Center (APDP-ERC), Lisbon 1150-082, Portugal
| | - Piero Portincasa
- Clinica Medica "A. Murri", Department of Biomedical Sciences and Human Oncology, University of Bari Aldo Moro, Medical School, Piazza Giulio Cesare 11, Bari 70124, Italy.
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Ajackson M, Nagagata BA, Marcondes-de-Castro IA, Mandarim-de-Lacerda CA, Aguila MB. Adult mice offspring of obese mothers supplemented with melatonin show lessened liver steatosis, inflammation, oxidative stress, and endoplasmic reticulum stress. Life Sci 2023; 312:121253. [PMID: 36481166 DOI: 10.1016/j.lfs.2022.121253] [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: 10/15/2022] [Revised: 11/23/2022] [Accepted: 11/26/2022] [Indexed: 12/12/2022]
Abstract
AIMS To investigate, in the liver of adult offspring, the possible effects of melatonin supplementation in the obese mother during pregnancy and lactation. MAIN METHODS C57BL/6 females were fed with a control (C) or a high-fat (HF) diet and supplemented with melatonin (Mel) during the pregnancy and lactation, forming the groups: C, CMel, HF, and HFMel. After weaning until three months old, the offspring only received the C diet. KEY FINDINGS The HF mothers and their offspring showed higher body weight (BW) than the C mothers and offspring. However, at 3-mo-old, BW was reduced in HFMel vs. HF offspring. Also, plasmatic and liver lipid markers increased in HF vs. C offspring but were reduced in HFMel vs. HF offspring. Liver lipid content was lessened in HFMel vs. HF offspring by 50 %. Also, lipid metabolism, pro-inflammatory and endoplasmic reticulum (ER) stress genes were higher expressed in HF vs. C offspring but reduced in HFMel vs. HF offspring. Contrarily, beta-oxidation and antioxidant enzyme genes were less expressed in HF vs. C offspring but improved in HFMel vs. HF offspring. Finally, AMPK/mTOR pathway genes, initially dysregulated in the HF, were restored in the HFMel offspring. SIGNIFICANCE The obese mother leads to liver alterations in the offspring. Current findings demonstrated the maternal melatonin supplementation during pregnancy and lactation in adult offspring's liver. Consequently, the effects were seen in mitigating the liver's AMPK/mTOR pathway genes, lipogenesis, beta-oxidation, inflammation, oxidative stress, and ER stress, preventing liver disease progression in the offspring.
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Affiliation(s)
- Matheus Ajackson
- Laboratory of Morphometry, Metabolism and Cardiovascular Disease, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Brenda A Nagagata
- Laboratory of Morphometry, Metabolism and Cardiovascular Disease, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ilitch A Marcondes-de-Castro
- Laboratory of Morphometry, Metabolism and Cardiovascular Disease, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Carlos A Mandarim-de-Lacerda
- Laboratory of Morphometry, Metabolism and Cardiovascular Disease, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Marcia Barbosa Aguila
- Laboratory of Morphometry, Metabolism and Cardiovascular Disease, Biomedical Center, Institute of Biology, The University of the State of Rio de Janeiro, Rio de Janeiro, Brazil.
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Qu B, Liu X, Liang Y, Zheng K, Zhang C, Lu L. Salidroside in the Treatment of NAFLD/NASH. Chem Biodivers 2022; 19:e202200401. [PMID: 36210339 DOI: 10.1002/cbdv.202200401] [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: 04/27/2022] [Accepted: 10/03/2022] [Indexed: 12/27/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the commonest reason for chronic liver diseases in the world and is commonly related to the hepatic manifestation of the metabolic syndrome. Non-alcoholic steatohepatitis (NASH) is a deteriorating form of NAFLD, which can eventually develop into fibrosis, cirrhosis, and liver cancer. The reason for NAFLD/NASH development is complicated, such as liver lipid metabolism, oxidative stress, inflammatory response, apoptosis and autophagy, liver fibrosis and gut microbiota. Apart from bariatric surgery and lifestyle changes, officially approved drug therapy for NAFLD/NASH treatment is lacking. Salidroside (SDS) is a phenolic compound extensively distributed in the tubers of Rhodiola plants, which possesses many significant biological activities. This review summarized the related targets regulated by SDS in treating NAFLD/NASH. It is indicated that SDS could improve the status of NAFLD/NASH by ameliorating abnormal lipid metabolism, inhibiting oxidative stress, regulating apoptosis and autophagy, reducing inflammatory response, alleviating fibrosis and regulating gut microbiota. In conclusion, although the multiple bioactivities of SDS have been confirmed, the clinical data are inadequate and need to become the focus of attention in the later study.
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Affiliation(s)
- Baozhen Qu
- Qingdao Cancer Prevention and Treatment Research Institute, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, 127 Siliunan Road, Qingdao, 266042, China
| | - Xuemao Liu
- Qingdao Cancer Prevention and Treatment Research Institute, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, 127 Siliunan Road, Qingdao, 266042, China
| | - Yanjiao Liang
- Department of Oncology Center, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao, 266042, China
| | - Keke Zheng
- Department of Oncology Center, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, Qingdao, 266042, China
| | - Chunling Zhang
- Qingdao Cancer Prevention and Treatment Research Institute, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, 127 Siliunan Road, Qingdao, 266042, China
| | - Linlin Lu
- Qingdao Cancer Prevention and Treatment Research Institute, Qingdao Central Hospital, The Second Affiliated Hospital of Medical College of Qingdao University, 127 Siliunan Road, Qingdao, 266042, China
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20
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Role of Oxidative Stress and Lipid Peroxidation in the Pathophysiology of NAFLD. Antioxidants (Basel) 2022; 11:antiox11112217. [PMID: 36358589 PMCID: PMC9686676 DOI: 10.3390/antiox11112217] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/02/2022] [Accepted: 11/08/2022] [Indexed: 11/11/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is characterised by an excess of hepatic fat that can progress to steatohepatitis, fibrosis, cirrhosis and hepatocarcinoma. The imbalance between lipid uptake/lipogenesis and lipid oxidation/secretion in the liver is a major feature of NAFLD. Given the lack of a non-invasive and reliable methods for the diagnosis of non-alcoholic steatohepatitis (NASH), it is important to find serum markers that are capable of discriminating or defining patients with this stage of NASH. Blood samples were obtained from 152 Caucasian subjects with biopsy-proven NAFLD due to persistently elevated liver enzyme levels. Metabolites representative of oxidative stress were assessed. The findings derived from this work revealed that NAFLD patients with a NASH score of ≥ 4 showed significantly higher levels of lipid peroxidation (LPO). Indeed, LPO levels above the optimal operating point (OOP) of 315.39 μM are an independent risk factor for presenting a NASH score of ≥ 4 (OR: 4.71; 95% CI: 1.68−13.19; p = 0.003). The area under the curve (AUC = 0.81, 95% CI = 0.73−0.89, p < 0.001) shows a good discrimination ability of the model. Therefore, understanding the molecular mechanisms underlying the basal inflammation present in these patients is postulated as a possible source of biomarkers and therapeutic targets in NASH.
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21
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Shaaban HH, Alzaim I, El-Mallah A, Aly RG, El-Yazbi AF, Wahid A. Metformin, pioglitazone, dapagliflozin and their combinations ameliorate manifestations associated with NAFLD in rats via anti-inflammatory, anti-fibrotic, anti-oxidant and anti-apoptotic mechanisms. Life Sci 2022; 308:120956. [PMID: 36103959 DOI: 10.1016/j.lfs.2022.120956] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 12/12/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is an important health threat that is strongly linked to components of metabolic syndrome, particularly the low-grade inflammatory changes. Significantly, several of the available anti-diabetic drug classes demonstrate a considerable anti-inflammatory effect, and hence might be of benefit for NAFLD patients. In this study, we used a rat model of diet-induced NAFLD to examine the potential effect of metformin, pioglitazone, dapagliflozin and their combinations on NAFLD manifestations. Rats were fed an atherogenic diet containing 1.25 % cholesterol, 0.5 % cholic acid and 60 % cocoa butter for 6 weeks causing a number of metabolic and hepatic alterations including insulin resistance, dyslipidemia, systemic inflammation, increased hepatic oxidative stress and lipid peroxidation, hepatic steatosis, lobular inflammation, as well as increased markers of liver inflammation and hepatocyte apoptosis. Drug treatment, which started at the third week of NAFLD induction and continued for three weeks, not only ameliorated the observed metabolic impairment, but also functional and structural manifestations of NAFLD. Specifically, anti-diabetic drug treatment reversed markers of systemic and hepatic inflammation, oxidative stress, hepatic fibrosis, and hepatocyte apoptosis. Our findings propose that anti-diabetic drugs with a potential anti-inflammatory effect can ameliorate the manifestations of NAFLD, and thus may provide a therapeutic option for such a condition that is closely associated with metabolic diseases. The detailed pharmacology of these classes in aspects linked to the observed impact on NAFLD requires to be further investigated and translated into clinical studies for tailored therapy specifically targeting NAFLD.
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Affiliation(s)
- Hager H Shaaban
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Egypt.
| | - Ibrahim Alzaim
- Department of Biochemistry and Molecular Genetics, Faculty of Medicine the American University of Beirut, Beirut, Lebanon; Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon
| | - Ahmed El-Mallah
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Egypt
| | - Rania G Aly
- Department of Pathology, Faculty of Medicine, Alexandria University, Egypt
| | - Ahmed F El-Yazbi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Alexandria University, Egypt; Department of Pharmacology and Toxicology, Faculty of Medicine, American University of Beirut, Beirut, Lebanon; Faculty of Pharmacy, Al-Alamein International University, Alamein, Egypt.
| | - Ahmed Wahid
- Department of Pharmaceutical Biochemistry, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.
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22
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Hoffmann C, Gerber PA, Cavelti-Weder C, Licht L, Kotb R, Al Dweik R, Cherfane M, Bornstein SR, Perakakis N. Liver, NAFLD and COVID-19. Horm Metab Res 2022; 54:522-531. [PMID: 35468630 DOI: 10.1055/a-1834-9008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Coronavirus disease 2019 (COVID-19) is characterized by a wide clinical spectrum that includes abnormalities in liver function indicative of liver damage. Conversely, people with liver diseases are at higher risk of severe COVID-19. In the current review, we summarize first the epidemiologic evidence describing the bidirectional relationship between COVID-19 and liver function/liver diseases. Additionally, we present the most frequent histologic findings as well as the most important direct and indirect mechanisms supporting a COVID-19 mediated liver injury. Furthermore, we focus on the most frequent liver disease in the general population, non-alcoholic or metabolic-associated fatty liver disease (NAFLD/MAFLD), and describe how COVID-19 may affect NAFLD/MAFLD development and progression and conversely how NAFLD/MAFLD may further aggravate a COVID-19 infection. Finally, we present the long-term consequences of the pandemic on the development and management of NAFLD.
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Affiliation(s)
- Carlotta Hoffmann
- University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany, Department of Internal Medicine III, Dresden, Germany
| | - Philipp A Gerber
- University Hospital Zurich (USZ) and University of Zurich (UZH), Switzerland, Department of Endocrinology, Diabetology and Clinical Nutrition, Zurich, Switzerland
| | - Claudia Cavelti-Weder
- University Hospital Zurich (USZ) and University of Zurich (UZH), Switzerland, Department of Endocrinology, Diabetology and Clinical Nutrition, Zurich, Switzerland
| | - Louisa Licht
- University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany, Department of Internal Medicine III, Dresden, Germany
| | - Reham Kotb
- Abu Dhabi University, Abu Dhabi, United Arab Emirates, College of Health Sciences, Abu Dhabi, United Arab Emirates
| | - Rania Al Dweik
- Abu Dhabi University, Abu Dhabi, United Arab Emirates, Department of Public Health, Abu Dhabi, United Arab Emirates
| | - Michele Cherfane
- Abu Dhabi University, Abu Dhabi, United Arab Emirates, College of Health Sciences, Abu Dhabi, United Arab Emirates
| | - Stefan R Bornstein
- University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany, Department of Internal Medicine III, Dresden, Germany
| | - Nikolaos Perakakis
- University Hospital Carl Gustav Carus, Technische Universität Dresden, Germany, Department of Internal Medicine III, Dresden, Germany
- University Hospital and Faculty of Medicine, TU Dresden, Dresden, Paul Langerhans Institute Dresden (PLID), Helmholtz Center Munich, Dresden, Germany
- Neuherberg, German Center for Diabetes Research (DZD e.V.), Neuherberg, Germany
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23
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Ryu BI, Kim KT. Antioxidant activity and protective effect of methyl gallate against t-BHP induced oxidative stress through inhibiting ROS production. Food Sci Biotechnol 2022; 31:1063-1072. [DOI: 10.1007/s10068-022-01120-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 05/29/2022] [Accepted: 06/09/2022] [Indexed: 11/04/2022] Open
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24
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Cui Z, Jin N, Amevor FK, Shu G, Du X, Kang X, Ning Z, Deng X, Tian Y, Zhu Q, Wang Y, Li D, Zhang Y, Wang X, Han X, Feng J, Zhao X. Dietary Supplementation of Salidroside Alleviates Liver Lipid Metabolism Disorder and Inflammatory Response to Promote Hepatocyte Regeneration via PI3K/AKT/Gsk3-β Pathway. Poult Sci 2022; 101:102034. [PMID: 35926351 PMCID: PMC9356167 DOI: 10.1016/j.psj.2022.102034] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 06/20/2022] [Accepted: 06/22/2022] [Indexed: 01/07/2023] Open
Abstract
Fatty liver hemorrhagic syndrome (FLHS) is a chronic hepatic disease which occurs when there is a disorder in lipid metabolism. FLHS is often observed in caged laying hens and characterized by a decrease in egg production and dramatic increase of mortality. Salidroside (SDS) is an herbal drug which has shown numerous pharmacological activities, such as protecting mitochondrial function, attenuating cell apoptosis and inflammation, and promoting antioxidant defense system. We aimed to determine the therapeutic effects of SDS on FLHS in laying hens and investigate the underlying mechanisms through which SDS operates these functions. We constructed oleic acid (OA)-induced fatty liver model in vitro and high-fat diet-induced FLHS of laying hens in vivo. The results indicated that SDS inhibited OA-induced lipid accumulation in chicken primary hepatocytes, increased hepatocyte activity, elevated the mRNA expression of proliferation related genes PCNA, CDK2, and cyclinD1 and increased the protein levels of PCNA and CDK2 (P < 0.05), as well as decreased the cleavage levels of Caspase-9, Caspase-8, and Caspase-3 and apoptosis in hepatocytes (P < 0.05). Moreover, SDS promoted the phosphorylation levels of PDK1, AKT, and Gsk3-β, while inhibited the PI3K inhibitor (P < 0.05). Additionally, we found that high-fat diet-induced FLHS hens had heavier body weight, liver weight, and abdominal fat weight, and severe steatosis in histology, compared with the control group (Con). However, hens fed with SDS maintained lighter body weight, liver weight, and abdominal fat weight, as well as normal liver without hepatic steatosis. In addition, high-fat diet-induced FLHS hens had high levels of serum total cholesterol (TC), triglyceride (TG), alanine transaminase (ALT), and aspartate aminotransferase (AST) compared to the Con group, however, in the Model+SDS group, the levels of TC, TG, ALT, and AST decreased significantly, whereas the level of superoxide dismutase (SOD) increased significantly (P < 0.05). We also found that SDS significantly decreased the mRNA expression abundance of PPARγ, SCD, and FAS in the liver, as well as increased levels of PPARα and MTTP, and decreased the mRNA expression of TNF-α, IL-1β, IL-6, and IL-8 in the Model+SDS group (P < 0.05). In summary, this study showed that 0.3 mg/mL SDS attenuated ROS generation, inhibited lipid accumulation and hepatocyte apoptosis, and promoted hepatocyte proliferation by targeting the PI3K/AKT/Gsk3-β pathway in OA-induced fatty liver model in vitro, and 20 mg/kg SDS alleviated high-fat-diet-induced hepatic steatosis, oxidative stress, and inflammatory response in laying hens in vivo.
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Affiliation(s)
- Zhifu Cui
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China; College of Animal Science and Technology, Southwest University, Chongqing, P. R. China
| | - Ningning Jin
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Felix Kwame Amevor
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Gang Shu
- Department of Pharmacy, College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, Sichuan Province, P. R. China
| | - Xiaxia Du
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Xincheng Kang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Zifan Ning
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Xun Deng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Yaofu Tian
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Qing Zhu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Yan Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Diyan Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Yao Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China
| | - Xiaoqi Wang
- Agriculture and Animal Husbandry Comprehensive Service Center of Razi County, Tibet Autonomous Region, P. R. China
| | - Xue Han
- Guizhou Institute of Animal Husbandry and Veterinary Medicine, Guizhou province, P. R. China
| | - Jing Feng
- Institute of Animal Husbandry and Veterinary Medicine, College of Agriculture and Animal Husbandry, Tibet Autonomous Region, P. R. China
| | - Xiaoling Zhao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, P. R. China.
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25
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Garbuzenko DV. Pathophysiological mechanisms of hepatic stellate cells activation in liver fibrosis. World J Clin Cases 2022; 10:3662-3676. [PMID: 35647163 PMCID: PMC9100727 DOI: 10.12998/wjcc.v10.i12.3662] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/17/2021] [Accepted: 03/26/2022] [Indexed: 02/06/2023] Open
Abstract
Liver fibrosis is a complex pathological process controlled by a variety of cells, mediators and signaling pathways. Hepatic stellate cells play a central role in the development of liver fibrosis. In chronic liver disease, hepatic stellate cells undergo dramatic phenotypic activation and acquire fibrogenic properties. This review focuses on the pathophysiological mechanisms of hepatic stellate cells activation in liver fibrosis. They enter the cell cycle under the influence of various triggers. The “Initiation” phase of hepatic stellate cells activation overlaps and continues with the “Perpetuation” phase, which is characterized by a pronounced inflammatory and fibrogenic reaction. This is followed by a resolution phase if the injury subsides. Knowledge of these pathophysiological mechanisms paved the way for drugs aimed at preventing the development and progression of liver fibrosis. In this respect, impairments in intracellular signaling, epigenetic changes and cellular stress response can be the targets of therapy where the goal is to deactivate hepatic stellate cells. Potential antifibrotic therapy may focus on inducing hepatic stellate cells to return to an inactive state through cellular aging, apoptosis, and/or clearance by immune cells, and serve as potential antifibrotic therapy. It is especially important to prevent the formation of liver cirrhosis since the only radical approach to its treatment is liver transplantation which can be performed in only a limited number of countries.
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26
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Zhao WJ, Bian YP, Wang QH, Yin F, Yin L, Zhang YL, Liu JH. Blueberry-derived exosomes-like nanoparticles ameliorate nonalcoholic fatty liver disease by attenuating mitochondrial oxidative stress. Acta Pharmacol Sin 2022; 43:645-658. [PMID: 33990765 PMCID: PMC8888548 DOI: 10.1038/s41401-021-00681-w] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 04/13/2021] [Indexed: 02/03/2023] Open
Abstract
Accumulating evidence indicates that mitochondrial dysfunction and oxidative stress play a pivotal role in the initiation and progression of nonalcoholic fatty liver disease (NAFLD). In this study, we found that blueberry-derived exosomes-like nanoparticles (BELNs) could ameliorate oxidative stress in rotenone-induced HepG2 cells and high-fat diet (HFD)-fed C57BL/6 mice. Preincubation with BELNs decreased the level of reactive oxygen species (ROS), increased the mitochondrial membrane potential, and prevented cell apoptosis by inducing the expression of Bcl-2 and heme oxygenase-1 (HO-1) and decreasing the content of Bax in rotenone-treated HepG2 cells. We also found that preincubation with BELNs accelerated the translocation of Nrf2, an important transcription factor of antioxidative proteins, from the cytoplasm to the nucleus in rotenone-treated HepG2 cells. Moreover, administration of BELNs improved insulin resistance, ameliorated the dysfunction of hepatocytes, and regulated the expression of detoxifying/antioxidant genes by affecting the distribution of Nrf2 in the cytoplasm and nucleus of hepatocytes of HFD-fed mice. Furthermore, BELNs supplementation prevented the formation of vacuoles and attenuated the accumulation of lipid droplets by inhibiting the expression of fatty acid synthase (FAS) and acetyl-CoA carboxylase 1 (ACC1), the two key transcription factors for de novo lipogenesis in the liver of HFD-fed mice. These findings suggested that BELNs can be used for the treatment of NAFLD because of their antioxidative activity.
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Affiliation(s)
- Wan-Jun Zhao
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
| | - Yang-Ping Bian
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
| | - Qiu-Hui Wang
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
| | - Fei Yin
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China.
- College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China.
| | - Li Yin
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
- College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Yong-Lan Zhang
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China
- College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China
| | - Jian-Hui Liu
- Chongqing Key Lab of Medicinal Chemistry & Molecular Pharmacology, Chongqing University of Technology, Chongqing, 400054, China.
- College of Pharmacy and Bioengineering, Chongqing University of Technology, Chongqing, 400054, China.
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27
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Chen Q, Gao M, Yang H, Mei L, Zhong R, Han P, Liu P, Zhao L, Wang J, Li J. Serum ferritin levels are associated with advanced liver fibrosis in treatment-naive autoimmune hepatitis. BMC Gastroenterol 2022; 22:23. [PMID: 35034629 PMCID: PMC8762965 DOI: 10.1186/s12876-022-02098-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 12/28/2021] [Indexed: 02/06/2023] Open
Abstract
Background and aim The association between iron-metabolism-related variables and liver fibrosis in chronic hepatitis C and nonalcoholic fatty liver disease is now well known. However, the relationship has not been extensively studied in autoimmune hepatitis (AIH). We aimed to investigate the association between variables associated with iron metabolism and advanced liver fibrosis among untreated patients with AIH. Methods Ninety-seven untreated AIH patients were enrolled in this cross-sectional study. All participants underwent iron metabolism index detection and liver biopsy. Multiple logistic regression analysis was used to explore the association of iron-metabolism-related variables with advanced liver fibrosis. Results Among the 97 AIH patients, 38 (39.2%) had advanced liver fibrosis, and 59 (60.8%) did not. In multivariate logistic regression analysis, immunoglobulin G (odds ratio [OR], 1.123; 95% confidence interval [CI] 1.023–1.232, P = 0.014), platelet count (OR 0.988; 95% CI 0.979–0.997, P = 0.013), prothrombin time (OR 1.758; 95% CI 1.143–2.704, P = 0.010) and ferritin (OR 1.002; 95% CI 1.001–1.004, P = 0.012) were independent risk factors for predicting advanced liver fibrosis in AIH patients. Conclusion Higher serum ferritin was independently associated with advanced liver fibrosis among patients with treatment-naive AIH.
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Affiliation(s)
- Qingling Chen
- Department of Hepatology, Second People's Clinical College of Tianjin Medical University, Tianjin, China.,Department of Hepatology, Tianjin Second People's Hospital, No. 7, Sudi South Road, Nankai District, Tianjin, 300192, China
| | - Min Gao
- Department of Hepatology, Tianjin Second People's Hospital, No. 7, Sudi South Road, Nankai District, Tianjin, 300192, China
| | - Hang Yang
- Department of Hepatology, Second People's Clinical College of Tianjin Medical University, Tianjin, China.,Department of Hepatology, Tianjin Second People's Hospital, No. 7, Sudi South Road, Nankai District, Tianjin, 300192, China
| | - Ling Mei
- Department of Hepatology, Second People's Clinical College of Tianjin Medical University, Tianjin, China.,Department of Hepatology, Tianjin Second People's Hospital, No. 7, Sudi South Road, Nankai District, Tianjin, 300192, China
| | - Rui Zhong
- Department of Neurology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Ping Han
- Department of Hepatology, Tianjin Second People's Hospital, No. 7, Sudi South Road, Nankai District, Tianjin, 300192, China
| | - Peiyan Liu
- Department of Hepatology, Second People's Clinical College of Tianjin Medical University, Tianjin, China.,Department of Hepatology, Tianjin Second People's Hospital, No. 7, Sudi South Road, Nankai District, Tianjin, 300192, China
| | - Lili Zhao
- Department of Hepatology, Tianjin Second People's Hospital, No. 7, Sudi South Road, Nankai District, Tianjin, 300192, China
| | - Jing Wang
- Department of Hepatology, Tianjin Second People's Hospital, No. 7, Sudi South Road, Nankai District, Tianjin, 300192, China
| | - Jia Li
- Department of Hepatology, Tianjin Second People's Hospital, No. 7, Sudi South Road, Nankai District, Tianjin, 300192, China.
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28
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Yang L, Bi L, Jin L, Wang Y, Li Y, Li Z, He W, Cui H, Miao J, Wang L. Geniposide Ameliorates Liver Fibrosis Through Reducing Oxidative Stress and Inflammatory Respose, Inhibiting Apoptosis and Modulating Overall Metabolism. Front Pharmacol 2021; 12:772635. [PMID: 34899328 PMCID: PMC8651620 DOI: 10.3389/fphar.2021.772635] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/05/2021] [Indexed: 12/15/2022] Open
Abstract
Liver fibrosis is a progressive liver damage condition caused by various factors and may progress toward liver cirrhosis, and even hepatocellular carcinoma. Many studies have found that the disfunction in metabolism could contribute to the development of liver fibrosis. Geniposide, derived from Gardenia jasminoides J. Ellis, has been demonstrated with therapeutic effects on liver fibrosis. However, the exact molecular mechanisms of such liver-protection remain largely unknown. The aim of this study was to explored the effect of geniposide on metabolic regulations in liver fibrosis. We used carbon tetrachloride (CCl4) to construct a mouse model of liver fibrosis and subsequently administered geniposide treatment. Therapeutic effects of geniposide on liver fibrosis were accessed through measuring the levels of hepatic enzymes in serum and the pathological changes in liver. We also investigated the effects of geniposide on inflammatory response, oxidative stress and apoptosis in liver. Furthermore, serum untargeted metabolomics were used to explore the metabolic regulatory mechanisms behind geniposide on liver fibrosis. Our results demonstrated that geniposide could reduce the levels of hepatic enzymes in serum and ameliorate the pathological changes in liver fibrosis mice. Geniposide enhanced the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) and decreased methane dicarboxylic aldehyde (MDA) levels in liver. Geniposide treatment also decreased the levels of interleukin (IL)-6, IL-1β, and tumor necrosis factor-alpha (TNF-a) in liver tissue homogenate. Terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling assay (TUNEL) staining demonstrated that geniposide could reduce the apoptosis of hepatocytes. Geniposide increased the protein expression of B-cell lymphoma-2 (Bcl-2) and downregulated the protein expression of Bcl-2 Associated X (Bax), cleaved-Caspase 3, and cleaved-Caspase 9. Serum untargeted metabolomics analysis demonstrated that geniposide treatment improved the metabolic disorders including glycerophospholipid metabolism, arginine and proline metabolism, and arachidonic acid (AA) metabolism. In conclusion, our study demonstrated the protective effects of geniposide on liver fibrosis. We found that geniposide could treat liver fibrosis by inhibiting oxidative stress, reducing inflammatory response and apoptosis in the liver, and modulating glycerophospholipid, and arginine, proline, and AA metabolism processes.
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Affiliation(s)
- Lu Yang
- Tianjin University of Traditional Chinese Medicine, Tianjin, China.,Tianjin Second People's Hospital, Tianjin, China
| | - Liping Bi
- Tianjin Second People's Hospital, Tianjin, China
| | - Lulu Jin
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuming Wang
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yuting Li
- Tianjin University of Traditional Chinese Medicine, Tianjin, China.,First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zixuan Li
- Yunnan Provincial Hospital of Traditional Chinese Medicine, Kunming, China
| | - Wenju He
- Tianjin First Central Hospital, Tianjin, China
| | - Huantian Cui
- Shandong Provincial Key Laboratory of Animal Cell and Developmental Biology, School of Life Sciences, Shandong University, Qingdao, China
| | - Jing Miao
- Tianjin Second People's Hospital, Tianjin, China
| | - Li Wang
- Tianjin Second People's Hospital, Tianjin, China
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29
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Sumida Y, Yoneda M, Seko Y, Takahashi H, Hara N, Fujii H, Itoh Y, Yoneda M, Nakajima A, Okanoue T. Role of vitamin E in the treatment of non-alcoholic steatohepatitis. Free Radic Biol Med 2021; 177:391-403. [PMID: 34715296 DOI: 10.1016/j.freeradbiomed.2021.10.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 12/12/2022]
Abstract
Non-alcoholic steatohepatitis (NASH), a severe form of non-alcoholic fatty liver disease (NAFLD), can progress to cirrhosis, hepatocellular carcinoma (HCC), and hepatic failure/liver transplantation. Indeed, NASH will soon be the leading cause of HCC and liver transplantation. Lifestyle intervention represents the cornerstone of NASH treatment, but it is difficult to sustain. However, no pharmacotherapies for NASH have been approved. Oxidative stress has been implicated as one of the key factors in the pathogenesis of NASH. Systematic reviews with meta-analyses have confirmed that vitamin E reduces transaminase activities and may resolve NASH histopathology without improving hepatic fibrosis. However, vitamin E is not recommended for the treatment of NASH in diabetes, NAFLD without liver biopsy, NASH cirrhosis, or cryptogenic cirrhosis. Nevertheless, vitamin E supplementation may improve clinical outcomes in patients with NASH and bridging fibrosis or cirrhosis. Further studies are warranted to confirm such effects of vitamin E and that it would reduce overall mortality/morbidity without increasing the incidence of cardiovascular events. Future clinical trials of the use of vitamin E in combination with other anti-fibrotic agents may demonstrate an additive or synergistic therapeutic effect. Vitamin E is the first-line pharmacotherapy for NASH, according to the consensus of global academic societies.
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Affiliation(s)
- Yoshio Sumida
- Division of Hepatology and Pancreatology, Department of Internal Medicine, Aichi Medical University, Nagakute, Aichi, Japan.
| | - Masato Yoneda
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
| | - Yuya Seko
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | | | - Nagisa Hara
- Liver Center, Saga University Hospital, Saga, Japan
| | - Hideki Fujii
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan.
| | - Yoshito Itoh
- Department of Gastroenterology and Hepatology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
| | - Masashi Yoneda
- Division of Hepatology and Pancreatology, Department of Internal Medicine, Aichi Medical University, Nagakute, Aichi, Japan.
| | - Atsushi Nakajima
- Department of Gastroenterology and Hepatology, Yokohama City University Graduate School of Medicine, Yokohama, Japan.
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30
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Xu H, Wang L. The Role of Notch Signaling Pathway in Non-Alcoholic Fatty Liver Disease. Front Mol Biosci 2021; 8:792667. [PMID: 34901163 PMCID: PMC8652134 DOI: 10.3389/fmolb.2021.792667] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 11/01/2021] [Indexed: 12/24/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common chronic liver disease worldwide, and progressive NAFLD can develop into non-alcoholic steatohepatitis (NASH), liver cirrhosis, or hepatocellular carcinoma (HCC). NAFLD is a kind of metabolic disordered disease, which is commonly associated with lipid metabolism, insulin resistance, oxidative stress, inflammation, and fibrogenesis, as well as autophagy. Growing studies have shown Notch signaling pathway plays a pivotal role in the regulation of NAFLD progression. Here, we review the profile of the Notch signaling pathway, new evidence of Notch signaling involvement in NAFLD, and describe the potential of Notch as a biomarker and therapeutic target for NAFLD treatment.
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Affiliation(s)
| | - Lin Wang
- Department of Hepatobiliary Surgery, Xi-Jing Hospital, The Fourth Military Medical University, Xi’an, China
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31
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Qiang W, Shen T, Noman M, Guo J, Jin Z, Lin D, Pan J, Lu H, Li X, Gong F. Fibroblast Growth Factor 21 Augments Autophagy and Reduces Apoptosis in Damaged Liver to Improve Tissue Regeneration in Zebrafish. Front Cell Dev Biol 2021; 9:756743. [PMID: 34746149 PMCID: PMC8570170 DOI: 10.3389/fcell.2021.756743] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/05/2021] [Indexed: 12/11/2022] Open
Abstract
Regeneration of a part of the diseased liver after surgical resection is mainly achieved by the proliferation of the remaining healthy liver cells. However, in case of extreme loss of liver cells or in the final stages of chronic liver disease, most liver cells are depleted or lose their ability to proliferate. Therefore, to foster liver regeneration, it is of great clinical and scientific significance to improve the survival and proliferation ability of residual hepatocytes. In this study, we conducted experiments on a zebrafish model of targeted ablation of liver cells to clarify the role of fibroblast growth factor 21 (FGF21). We found that FGF21 increased the regeneration area of the damaged liver and improved the survival rate of damaged liver cells by inhibiting cell apoptosis and reducing oxidative stress. Our results also showed that administration of FGF21 upregulated autophagy, and the beneficial effects of FGF21 were reversed by the well-known autophagy inhibitor chloroquine (CQ), indicating that FGF21-activated autophagy played a central role in the treatment. We further showed that the enhancement of autophagy induced by FGF21 was due to the activation of the AMPK-mTOR signaling pathway. Taken together, these data provide new evidence that FGF21 is an effective autophagy regulator that can significantly improve the survival of damaged livers.
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Affiliation(s)
- Weidong Qiang
- College of Life Sciences, Jilin Agricultural University, Changchun, China
| | - Tianzhu Shen
- School of Pharmacy, Wenzhou Medical University, Wenzhou, China
| | - Muhammad Noman
- College of Life Sciences, Jilin Agricultural University, Changchun, China
| | - Jinnan Guo
- College of Life Sciences, Jilin Agricultural University, Changchun, China
| | - Zhongqian Jin
- School of Pharmacy, Wenzhou Medical University, Wenzhou, China
| | - Danfeng Lin
- School of Pharmacy, Wenzhou Medical University, Wenzhou, China
| | - Jiaxuan Pan
- School of Pharmacy, Wenzhou Medical University, Wenzhou, China
| | - Huiqiang Lu
- Center for Drug Screening and Research, College of Geography and Environmental Engineering, Gannan Normal University, Ganzhou, China.,Center for Developmental Biology of Jinggangshan University, College of Life Sciences, Jinggangshan University, Ji'an, China
| | - Xiaokun Li
- College of Life Sciences, Jilin Agricultural University, Changchun, China.,School of Pharmacy, Wenzhou Medical University, Wenzhou, China
| | - Fanghua Gong
- School of Pharmacy, Wenzhou Medical University, Wenzhou, China
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32
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Involvement of Autophagy in Ageing and Chronic Cholestatic Diseases. Cells 2021; 10:cells10102772. [PMID: 34685751 PMCID: PMC8534511 DOI: 10.3390/cells10102772] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/05/2021] [Accepted: 10/13/2021] [Indexed: 01/18/2023] Open
Abstract
Autophagy is a “housekeeping” lysosomal degradation process involved in numerous physiological and pathological processes in all eukaryotic cells. The dysregulation of hepatic autophagy has been described in several conditions, from obesity to diabetes and cholestatic disease. We review the role of autophagy, focusing on age-related cholestatic diseases, and discuss its therapeutic potential and the molecular targets identified to date. The accumulation of toxic BAs is the main cause of cell damage in cholestasis patients. BAs and their receptor, FXR, have been implicated in the regulation of hepatic autophagy. The mechanisms by which cholestasis induces liver damage include mitochondrial dysfunction, oxidative stress and ER stress, which lead to cell death and ultimately to liver fibrosis as a compensatory mechanism to reduce the damage. The stimulation of autophagy seems to ameliorate the liver damage. Autophagic activity decreases with age in several species, whereas its basic extends lifespan in animals, suggesting that it is one of the convergent mechanisms of several longevity pathways. No strategies aimed at inducing autophagy have yet been tested in cholestasis patients. However, its stimulation can be viewed as a novel therapeutic strategy that may reduce ageing-dependent liver deterioration and also mitigate hepatic steatosis.
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33
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Jiang L, Hong Y, Xie G, Zhang J, Zhang H, Cai Z. Comprehensive multi-omics approaches reveal the hepatotoxic mechanism of perfluorohexanoic acid (PFHxA) in mice. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 790:148160. [PMID: 34380288 DOI: 10.1016/j.scitotenv.2021.148160] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/24/2021] [Accepted: 05/27/2021] [Indexed: 06/13/2023]
Abstract
Perfluorohexanoic acid (PFHxA), one of the short-chain perfluoroalkyl acids (PFAAs), is considered as a substitute of perfluorooctane sulfonate (PFOS). This emerging organic pollutant is persistent and highly bioavailable to humans, raising concerns about its potential health risks. There are currently few researches on the toxicity of PFHxA. Liver has been suggested to be the main target of PFHxA toxicity, and the mechanism remains unclear. Herein, we investigated the transcriptomic, proteomic, and metabolomic landscape in PFHxA-exposed mice. Using these approaches, we identified several valuable biological processes involved in the process of liver injury, comprising fatty acid biosynthesis and degradation pathways, which might be induced by peroxisome proliferator-activated receptor (PPAR) signaling pathway. These processes further promoted oxidative stress and induced liver injury. Meanwhile, abnormalities in purine metabolism and glutathione metabolism were observed during the liver injury induced by PFHxA, indicating the production of oxidative stress. Finally, our present multi-omics studies provided new insights into the mechanisms involved in PFHxA-induced liver injury.
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Affiliation(s)
- Lilong Jiang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China; Shenzhen Research Institute and Continuing Education, Hong Kong Baptist University, Shenzhen, China
| | - Yanjun Hong
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China; Shenzhen Research Institute and Continuing Education, Hong Kong Baptist University, Shenzhen, China; School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen, China.
| | - Guangshan Xie
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Jinghui Zhang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China
| | - Hongna Zhang
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China; Shenzhen Research Institute and Continuing Education, Hong Kong Baptist University, Shenzhen, China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China.
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34
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Bile acid activated receptors: Integrating immune and metabolic regulation in non-alcoholic fatty liver disease. LIVER RESEARCH 2021. [DOI: 10.1016/j.livres.2021.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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35
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Plazas Guerrero CG, Acosta Cota SDJ, Castro Sánchez FH, Vergara Jiménez MDJ, Ríos Burgueño ER, Sarmiento Sánchez JI, Picos Corrales LA, Osuna Martínez U. Evaluation of sucrose-enriched diet consumption in the development of risk factors associated to type 2 diabetes, atherosclerosis and non-alcoholic fatty liver disease in a murine model. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2021; 31:651-669. [PMID: 31668088 DOI: 10.1080/09603123.2019.1680817] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
Overconsumption of sucrose, the main contributor of the total added sugar intake in the world, has been associated with negative metabolic effects related to non-communicable diseases. However, this relationship continues to be a controversial topic and further studies are needed. The aim of this study was to evaluate the sucrose-enriched diet consumption in the development of risk factors associated with type 2 diabetes, atherosclerosis and non-alcoholic fatty liver disease in a murine model. Sucrose-enriched diet-fed rats showed a decrease in food, lipids and protein intake as well as in serum total cholesterol levels, an increase in carbohydrates intake, glucose, insulin, triglycerides, VLDL-c and HDL-c levels and a greater degree of insulin resistance, steatosis and non-alcoholic steatohepatitis. Our results show that sucrose-enriched diet consumption during 25 weeks contribute to the development of risk factors associated with type 2 diabetes, atherosclerosis and non-alcoholic fatty liver disease in male Wistar rats.
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Affiliation(s)
| | | | | | | | - Efrén Rafael Ríos Burgueño
- Centro de Investigación y Docencia en Ciencias de la Salud, Universidad Autónoma de Sinaloa, Culiacán de Rosales, Mexico
| | | | | | - Ulises Osuna Martínez
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Sinaloa, Culiacán de Rosales, Mexico
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36
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Zeng F, Luo J, Han H, Xie W, Wang L, Han R, Chen H, Cai Y, Huang H, Xia Z. Allopurinol ameliorates liver injury in type 1 diabetic rats through activating Nrf2. Int J Immunopathol Pharmacol 2021; 35:20587384211031417. [PMID: 34240649 PMCID: PMC8274082 DOI: 10.1177/20587384211031417] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Hyperglycemia-induced oxidative stress plays important roles in the development of non-alcoholic fatty liver disease (NAFLD), which is a common complication in diabetic patients. The Nrf2-Keap1 pathway is important for cell antioxidant protection, while its role in exogenous antioxidant mediated protection against NAFLD is unclear. We thus, postulated that antioxidant treatment with allopurinol (ALP) may attenuate diabetic liver injury and explored the underlying mechanisms. Control (C) and streptozotocin (STZ)-induced diabetes rats (D) were untreated or treated with ALP for 4 weeks starting at 1 week after diabetes induction. Serum levels of alanine aminotransferase (ALT) and aspartate transaminase (AST), production of lipid peroxidation product malondialdehyde (MDA), and serum superoxide dismutase (SOD) were detected. Liver protein expressions of cleaved-caspase 3, IL-1β, nuclear factor-erythroid-2-related factor-2 (Nrf2), heme oxygenase-1 (HO-1), P62, Kelch-like ECH-associated protein 1 (Keap1), and LC3 were analyzed. In vitro, cultured rat normal hepatocytes BRL-3A were grouped to normal glucose (5.5 mM, NG) or high glucose (25 mM, HG) and treated with or without allopurinol (100 µM) for 48 h. Rats in the D group demonstrated liver injury evidenced as increased serum levels of ALT and AST. Diabetes increased apoptotic cell death, enhanced liver protein expressions of cleaved-caspase 3 and IL-1β with concomitantly increased production of MDA while serum SOD content was significantly reduced (all P < 0.05 vs C). In the meantime, protein levels of Nrf2, HO-1, and P62 were reduced while Keap1 and LC3 were increased in the untreated D group as compared to control (P < 0.05 vs C). And all the above alterations were significantly attenuated by ALP. Similar to our findings obtained from in vivo study, we got the same results in in vitro experiments. It is concluded that ALP activates the Nrf2/p62 pathway to ameliorate oxidative stress and liver injury in diabetic rats.
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Affiliation(s)
- Fei Zeng
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jierong Luo
- Department of Anesthesiology, Guangzhou First People's Hospital, The Second Affiliated Hospital of South China University of Technology, Guangzhou, China.,Department of Anesthesiology, The University of Hong Kong, Hong Kong, China
| | - Hong Han
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Wenjie Xie
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Lingzhi Wang
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ronghui Han
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hao Chen
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Yin Cai
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Health Technology and Informatics, The Hong Kong Polytechnic University, Hong Kong, China
| | - Huansen Huang
- Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Zhengyuan Xia
- Department of Anesthesiology, The University of Hong Kong, Hong Kong, China.,Department of Anesthesiology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Department of Anesthesiology, HuiZhou First Hospital, Guangdong Medical University, Huizhou, China
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37
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Muriel P, López-Sánchez P, Ramos-Tovar E. Fructose and the Liver. Int J Mol Sci 2021; 22:6969. [PMID: 34203484 PMCID: PMC8267750 DOI: 10.3390/ijms22136969] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 02/07/2023] Open
Abstract
Chronic diseases represent a major challenge in world health. Metabolic syndrome is a constellation of disturbances affecting several organs, and it has been proposed to be a liver-centered condition. Fructose overconsumption may result in insulin resistance, oxidative stress, inflammation, elevated uric acid levels, increased blood pressure, and increased triglyceride concentrations in both the blood and liver. Non-alcoholic fatty liver disease (NAFLD) is a term widely used to describe excessive fatty infiltration in the liver in the absence of alcohol, autoimmune disorders, or viral hepatitis; it is attributed to obesity, high sugar and fat consumption, and sedentarism. If untreated, NAFLD can progress to nonalcoholic steatohepatitis (NASH), characterized by inflammation and mild fibrosis in addition to fat infiltration and, eventually, advanced scar tissue deposition, cirrhosis, and finally liver cancer, which constitutes the culmination of the disease. Notably, fructose is recognized as a major mediator of NAFLD, as a significant correlation between fructose intake and the degree of inflammation and fibrosis has been found in preclinical and clinical studies. Moreover, fructose is a risk factor for liver cancer development. Interestingly, fructose induces a number of proinflammatory, fibrogenic, and oncogenic signaling pathways that explain its deleterious effects in the body, especially in the liver.
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Affiliation(s)
- Pablo Muriel
- Laboratory of Experimental Hepatology, Department of Pharmacology, Cinvestav-IPN, Apartado Postal 14-740, Mexico City 07300, Mexico;
| | - Pedro López-Sánchez
- Postgraduate Studies and Research Section, School of Higher Education in Medicine-IPN, Plan de San Luis y Díaz Mirón s/n, Casco de Santo Tomás, Mexico City 11340, Mexico;
| | - Erika Ramos-Tovar
- Postgraduate Studies and Research Section, School of Higher Education in Medicine-IPN, Plan de San Luis y Díaz Mirón s/n, Casco de Santo Tomás, Mexico City 11340, Mexico;
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38
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Schmidt CM, Arbi S, Bennett NC. Ovulation mitigates fatty liver associated with reproductive suppression and oxidative stress in Damaraland mole-rats (Fukomys damarensis). Reprod Fertil Dev 2021; 32:923-928. [PMID: 32586422 DOI: 10.1071/rd20049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 05/18/2020] [Indexed: 11/23/2022] Open
Abstract
Oxidative damage is often linked to reproduction; however, reproducing female Damaraland mole-rats (Fukomys damarensis) exhibit a reduction in oxidative damage relative to their non-reproductive, anovulatory, cohorts. Specifically, liver concentrations of malondialdehyde, a biomarker for lipid peroxidation, are significantly lower in reproducing females. We examined liver histology in reproductive, anovulatory and recently ovulating non-reproductive females, demonstrating an accumulation of lipid droplets only in the livers of anovulatory females and no fibrosis, cell death or inflammatory infiltrates in any group. Our observations suggest that anovulatory females experience a form of non-alcoholic fatty liver disease, which is reversed once they commence ovulation. We propose hormonal interactions that may underlie our observations.
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Affiliation(s)
- Christina M Schmidt
- Department of Zoology and Entomology, University of Pretoria, Private Bag x 20, Hatfield, Gauteng, 0028, South Africa; and Correspondimg author.
| | - Sandra Arbi
- Department of Anatomy, University of Pretoria, Private Bag x 20, Hatfield, Gauteng, 0028, South Africa
| | - Nigel C Bennett
- Department of Zoology and Entomology, University of Pretoria, Private Bag x 20, Hatfield, Gauteng, 0028, South Africa
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39
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Delli Bovi AP, Marciano F, Mandato C, Siano MA, Savoia M, Vajro P. Oxidative Stress in Non-alcoholic Fatty Liver Disease. An Updated Mini Review. Front Med (Lausanne) 2021; 8:595371. [PMID: 33718398 PMCID: PMC7952971 DOI: 10.3389/fmed.2021.595371] [Citation(s) in RCA: 106] [Impact Index Per Article: 35.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 02/01/2021] [Indexed: 12/14/2022] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a challenging disease caused by multiple factors, which may partly explain why it remains still orphan of an adequate therapeutic strategy. Herein we focus on the interplay between oxidative stress (OS) and the other causal pathogenetic factors. Different reactive oxygen species (ROS) generators contribute to NAFLD inflammatory and fibrotic progression, which is quite strictly linked to the lipotoxic liver injury from fatty acids and/or a wide variety of their biologically active metabolites in the context of either a two-hit or a (more recent) multiple parallel hits theory. An antioxidant defense system is usually able to protect hepatic cells from damaging effects caused by ROS, including those produced into the gastrointestinal tract, i.e., by-products generated by usual cellular metabolic processes, normal or dysbiotic microbiota, and/or diet through an enhanced gut–liver axis. Oxidative stress originating from the imbalance between ROS generation and antioxidant defenses is under the influence of individual genetic and epigenetic factors as well. Healthy diet and physical activity have been shown to be effective on NAFLD also with antioxidant mechanisms, but compliance to these lifestyles is very low. Among several considered antioxidants, vitamin E has been particularly studied; however, data are still contradictory. Some studies with natural polyphenols proposed for NAFLD prevention and treatment are encouraging. Probiotics, prebiotics, diet, or fecal microbiota transplantation represent new therapeutic approaches targeting the gut microbiota dysbiosis. In the near future, precision medicine taking into consideration genetic or environmental epigenetic risk factors will likely assist in further selecting the treatment that could work best for a specific patient.
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Affiliation(s)
- Anna Pia Delli Bovi
- Pediatrics Section, Department of Medicine and Surgery, Scuola Medica Salernitana, University of Salerno, Baronissi, Italy
| | - Francesca Marciano
- Pediatrics Section, Department of Medicine and Surgery, Scuola Medica Salernitana, University of Salerno, Baronissi, Italy.,Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy
| | - Claudia Mandato
- Department of Pediatrics, Santobono-Pausilipon Children's Hospital, Naples, Italy
| | - Maria Anna Siano
- Pediatrics Section, Department of Medicine and Surgery, Scuola Medica Salernitana, University of Salerno, Baronissi, Italy
| | - Marcella Savoia
- Department of Molecular Medicine and Medical Biotechnologies, University of Naples Federico II, Naples, Italy
| | - Pietro Vajro
- Pediatrics Section, Department of Medicine and Surgery, Scuola Medica Salernitana, University of Salerno, Baronissi, Italy
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40
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Shabgah AG, Norouzi F, Hedayati-Moghadam M, Soleimani D, Pahlavani N, Navashenaq JG. A comprehensive review of long non-coding RNAs in the pathogenesis and development of non-alcoholic fatty liver disease. Nutr Metab (Lond) 2021; 18:22. [PMID: 33622377 PMCID: PMC7903707 DOI: 10.1186/s12986-021-00552-5] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/17/2021] [Indexed: 12/15/2022] Open
Abstract
One of the most prevalent diseases worldwide without a fully-known mechanism is non-alcoholic fatty liver disease (NAFLD). Recently, long non-coding RNAs (lncRNAs) have emerged as significant regulatory molecules. These RNAs have been claimed by bioinformatic research that is involved in biologic processes, including cell cycle, transcription factor regulation, fatty acids metabolism, and-so-forth. There is a body of evidence that lncRNAs have a pivotal role in triglyceride, cholesterol, and lipoprotein metabolism. Moreover, lncRNAs by up- or down-regulation of the downstream molecules in fatty acid metabolism may determine the fatty acid deposition in the liver. Therefore, lncRNAs have attracted considerable interest in NAFLD pathology and research. In this review, we provide all of the lncRNAs and their possible mechanisms which have been introduced up to now. It is hoped that this study would provide deep insight into the role of lncRNAs in NAFLD to recognize the better molecular targets for therapy.
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Affiliation(s)
| | - Fatemeh Norouzi
- Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
| | | | - Davood Soleimani
- Department of Nutritional Sciences, School of Nutrition Sciences and Food Technology, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Naseh Pahlavani
- Social Development and Health Promotion Research Center, Gonabad University of Medical Sciences, Gonabad, Iran
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41
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Gerges SH, Wahdan SA, Elsherbiny DA, El-Demerdash E. Non-alcoholic fatty liver disease: An overview of risk factors, pathophysiological mechanisms, diagnostic procedures, and therapeutic interventions. Life Sci 2021; 271:119220. [PMID: 33592199 DOI: 10.1016/j.lfs.2021.119220] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/25/2021] [Accepted: 01/29/2021] [Indexed: 02/06/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a disorder of excessive fat accumulation in the liver, known as steatosis, without alcohol overconsumption. NAFLD can either manifest as simple steatosis or steatohepatitis, known as non-alcoholic steatohepatitis (NASH), which is accompanied by inflammation and possibly fibrosis. Furthermore, NASH might progress to hepatocellular carcinoma. NAFLD and NASH prevalence is in a continuous state of growth, and by 2018, NAFLD became a devastating metabolic disease with a global pandemic prevalence. The pathophysiology of NAFLD and NASH is not fully elucidated, but is known to involve the complex interplay between different metabolic, environmental, and genetic factors. In addition, unhealthy dietary habits and pre-existing metabolic disturbances together with other risk factors predispose NAFLD development and progression from simple steatosis to steatohepatitis, and eventually to fibrosis. Despite their growing worldwide prevalence, to date, there is no FDA-approved treatment for NAFLD and NASH. Several off-label medications are used to target disease risk factors such as obesity and insulin resistance, and some medications are used for their hepatoprotective effects. Unfortunately, currently used medications are not sufficiently effective, and research is ongoing to investigate the beneficial effects of different drugs and phytochemicals in NASH. In this review article, we outline the different risk factors and pathophysiological mechanisms involved in NAFLD, diagnostic procedures, and currently used management techniques.
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Affiliation(s)
- Samar H Gerges
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abbasia, Cairo 11566, Egypt
| | - Sara A Wahdan
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abbasia, Cairo 11566, Egypt
| | - Doaa A Elsherbiny
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abbasia, Cairo 11566, Egypt
| | - Ebtehal El-Demerdash
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Organization of African Unity Street, Abbasia, Cairo 11566, Egypt.
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42
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Xu F, Tautenhahn HM, Dirsch O, Dahmen U. Modulation of Autophagy: A Novel "Rejuvenation" Strategy for the Aging Liver. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:6611126. [PMID: 33628363 PMCID: PMC7889356 DOI: 10.1155/2021/6611126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/08/2020] [Accepted: 01/23/2021] [Indexed: 12/11/2022]
Abstract
Aging is a natural life process which leads to a gradual decline of essential physiological processes. For the liver, it leads to alterations in histomorphology (steatosis and fibrosis) and function (protein synthesis and energy generation) and affects central hepatocellular processes (autophagy, mitochondrial respiration, and hepatocyte proliferation). These alterations do not only impair the metabolic capacity of the liver but also represent important factors in the pathogenesis of malignant liver disease. Autophagy is a recycling process for eukaryotic cells to degrade dysfunctional intracellular components and to reuse the basic substances. It plays a crucial role in maintaining cell homeostasis and in resisting environmental stress. Emerging evidence shows that modulating autophagy seems to be effective in improving the age-related alterations of the liver. However, autophagy is a double-edged sword for the aged liver. Upregulating autophagy alleviates hepatic steatosis and ROS-induced cellular stress and promotes hepatocyte proliferation but may aggravate hepatic fibrosis. Therefore, a well-balanced autophagy modulation strategy might be suitable to alleviate age-related liver dysfunction. Conclusion. Modulation of autophagy is a promising strategy for "rejuvenation" of the aged liver. Detailed knowledge regarding the most devastating processes in the individual patient is needed to effectively counteract aging of the liver without causing obvious harm.
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Affiliation(s)
- Fengming Xu
- Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena 07747, Germany
| | - Hans-Michael Tautenhahn
- Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena 07747, Germany
| | - Olaf Dirsch
- Institute of Pathology, Klinikum Chemnitz gGmbH, Chemnitz 09111, Germany
| | - Uta Dahmen
- Department of General, Visceral and Vascular Surgery, Jena University Hospital, Jena 07747, Germany
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Attenuation of Perfluorooctane Sulfonate-Induced Steatohepatitis by Grape Seed Proanthocyanidin Extract in Mice. BIOMED RESEARCH INTERNATIONAL 2021; 2020:8818160. [PMID: 33457418 PMCID: PMC7787751 DOI: 10.1155/2020/8818160] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/11/2020] [Accepted: 11/30/2020] [Indexed: 01/09/2023]
Abstract
Perfluorooctane sulfonate (PFOS), an environmentally persistent pollutant, has been revealed to elicit hepatic toxicity. In the current study, we investigated the protective role of grape seed proanthocyanidin extract (GSPE) against PFOS-caused steatohepatitis in mice. Animals were exposed intragastrically to PFOS (10 mg/kg/day), GSPE (150 mg/kg/day), or their combination. After 21 days of treatment, mice exposed to PFOS exhibited steatosis, oxidative stress, and inflammation in the liver. Nevertheless, simultaneous administration of GSPE resumed the declined serum hepatic enzyme activities and histological abnormalities in PFOS-exposed mice. Furthermore, GSPE supplementation reduced the contents of triglyceride (TG) and total cholesterol (TC) and expression of lipid metabolism-associated genes CD36 and fatty acid-binding protein 4 (FABP4) in the liver of mice treated with PFOS. Moreover, GSPE suppressed the generation of lipid peroxidative product malondialdehyde and restored the activity of superoxide dismutase in the liver of PFOS-exposed mice. In addition, GSPE repressed the PFOS-induced hepatic overproduction of proinflammatory cytokines interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α). Our results demonstrate that GSPE attenuates PFOS-caused steatohepatitis in mice by regulating lipid metabolism, oxidative stress, and inflammatory response.
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Stec DE, Hinds TD. Natural Product Heme Oxygenase Inducers as Treatment for Nonalcoholic Fatty Liver Disease. Int J Mol Sci 2020; 21:E9493. [PMID: 33327438 PMCID: PMC7764878 DOI: 10.3390/ijms21249493] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 02/06/2023] Open
Abstract
Heme oxygenase (HO) is a critical component of the defense mechanism to a wide variety of cellular stressors. HO induction affords cellular protection through the breakdown of toxic heme into metabolites, helping preserve cellular integrity. Nonalcoholic fatty liver disease (NAFLD) is a pathological condition by which the liver accumulates fat. The incidence of NAFLD has reached all-time high levels driven primarily by the obesity epidemic. NALFD can progress to nonalcoholic steatohepatitis (NASH), advancing further to liver cirrhosis or cancer. NAFLD is also a contributing factor to cardiovascular and metabolic diseases. There are currently no drugs to specifically treat NAFLD, with most treatments focused on lifestyle modifications. One emerging area for NAFLD treatment is the use of dietary supplements such as curcumin, pomegranate seed oil, milk thistle oil, cold-pressed Nigella Satvia oil, and resveratrol, among others. Recent studies have demonstrated that several of these natural dietary supplements attenuate hepatic lipid accumulation and fibrosis in NAFLD animal models. The beneficial actions of several of these compounds are associated with the induction of heme oxygenase-1 (HO-1). Thus, targeting HO-1 through dietary-supplements may be a useful therapeutic for NAFLD either alone or with lifestyle modifications.
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Affiliation(s)
- David E. Stec
- Department of Physiology & Biophysics, Center for Cardiovascular and Metabolic Diseases Research, University of Mississippi Medical Center, 2500 North State Street, Jackson, MS 39216, USA
| | - Terry D. Hinds
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, 760 Press Avenue, Healthy Kentucky Research Building, Lexington, KY 40508, USA
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Charatcharoenwitthaya P, Karaketklang K, Aekplakorn W. Cigarette Smoking Increased Risk of Overall Mortality in Patients With Non-alcoholic Fatty Liver Disease: A Nationwide Population-Based Cohort Study. Front Med (Lausanne) 2020; 7:604919. [PMID: 33365321 PMCID: PMC7750535 DOI: 10.3389/fmed.2020.604919] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/18/2020] [Indexed: 12/13/2022] Open
Abstract
Background: The evidence suggests a detrimental effect of cigarette smoking on the progression of chronic liver disease. However, the impact of cigarette smoking on mortality among patients with non-alcoholic fatty liver disease (NAFLD) remain unclear. Methods: We used the National Health Examination Survey data collected during 2008-2009 to link the National Death Index to follow-up respondent survival. Diagnosis of NAFLD was based on a lipid accumulation product in participants without significant alcohol use or other liver diseases. Results: During 64,116 person-years of follow-up, 928 of 7,529 participants with NAFLD died, and the cumulative all-cause mortality was 14.5 per 1,000 person-years. In a Cox regression model adjusted for age, body mass index, alcohol intake, exercise, comorbidities, lipid profiles, and handgrip strength, current smoking increased the risk of mortality by 109% (adjusted hazard ratio (aHR): 2.09, 95% confidence interval [CI]: 1.18-3.71) compared with never smoker status in women, but showed only a trend toward harm among men (aHR: 1.41, 95% CI: 0.96-2.08). After controlling for potential confounders, smoking ≥10 pack-years continued to show a significant harmful effect on all-cause mortality among women (aHR: 5.40, 95% CI: 2.19-13.4), but not in men. Among women who drink alcohol ≥10 grams per day, current smoking (aHR: 13.8, 95% CI: 1.66-145) and smoking ≥10 pack-years (aHR: 310, 95% CI: 78-1,296) also significantly increased risk of death. Conclusion: This nationwide population-based study highlight a detrimental effect of cigarette smoking on mortality, with a similar but more definite association in women than in men with NAFLD.
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Affiliation(s)
- Phunchai Charatcharoenwitthaya
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Khemajira Karaketklang
- Division of Gastroenterology, Department of Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Wichai Aekplakorn
- Department of Community Medicine, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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He Y, Yang W, Gan L, Liu S, Ni Q, Bi Y, Han T, Liu Q, Chen H, Hu Y, Long Y, Yang L. Silencing HIF-1α aggravates non-alcoholic fatty liver disease in vitro through inhibiting PPAR-α/ANGPTL4 singling pathway. GASTROENTEROLOGIA Y HEPATOLOGIA 2020; 44:355-365. [PMID: 33272734 DOI: 10.1016/j.gastrohep.2020.09.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/02/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Non-alcoholic fatty liver disease (NAFLD) is an aberrant lipid metabolism disease. Hypoxia inducible factor-1 (HIF-1α) is a transcription factor which plays an important part in adapting lower oxygen condition. Here, we aimed to clarify the relationship between HIF-1α and NAFLD. METHODS HepG2 cells was stimulated by oleic acid (OA) and palmitic acid (PA) to establish in vitro model of NAFLD. The expression of lipid metabolism-related genes, the binding of PPARα to HIF-1α promoter, the lipid deposition, and oxidative stress were detected by qRT-PCR, western blot, Chip assay, Oil Red O staining and ELISA assays, respectively. RESULTS HIF-1α silence promoted lipid accumulation in NAFLD cells, accompanying by the significantly increased contents of TG (triglyceride) and ApoB (apolipoprotein B). In HepG2 cells treated with OA/PA, the expression of lipid metabolism-related genes and proteins, including APOE, A2m, TNFRSF11B, LDLr, and SREBP2, and the intracellular lipid deposition were up-regulated and further aggravated after silencing HIF-1α. In addition, the loss of HIF-1α could remarkably elevate MDA contents while inhibit the activities of beneficial antioxidant enzymes SOD and GSH-Px to activate oxidative stress, and promote the secretion of pro-inflammatory IL-6 and TNF-α to aggravate inflammation in NDFLD cells. PPARα positively bound to HIF-1α promoter. The silence of PPARα aggravated lipid deposition under normal or hypoxic environment in NAFLD cells. In addition, PPAR-α silence could decrease the expression of HIF-1α and ANGPTL4 in NAFLD cell model; moreover, the expression of APOE, A2m and TNFRSF11B and the production of TG and MDA were increased by PPAR-α suppression. CONCLUSION HIF-1α plays a crucial role in the regulation of lipid metabolism through activating PPAR-α/ANGPTL4 signaling pathway in NAFLD.
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Affiliation(s)
- Yan He
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Wenhui Yang
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Lulu Gan
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Shijie Liu
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Qing Ni
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Yunxia Bi
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Tun Han
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Qian Liu
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Hongyan Chen
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Yang Hu
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Yun Long
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China
| | - Li Yang
- Yan'an Hospital Affiliated to Kunming Medical University, Yunnan Cardiovascular Hospital, Key Laboratory of Cardiovascular Disease of Yunnan Province, Heart Disease Clinical Medical Center of Yunnan Province, Elderly Cardiovascular Disease Technology Innovation Team of Kunming, Key Laboratory of Cancer immunodeficiency of Yunnan Province, Kunming, Yunnan, PR. China.
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Understanding lipotoxicity in NAFLD pathogenesis: is CD36 a key driver? Cell Death Dis 2020; 11:802. [PMID: 32978374 PMCID: PMC7519685 DOI: 10.1038/s41419-020-03003-w] [Citation(s) in RCA: 222] [Impact Index Per Article: 55.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 02/06/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease worldwide. NAFLD stages range from simple steatosis (NAFL) to non-alcoholic steatohepatitis (NASH) which can progress to cirrhosis and hepatocellular carcinoma. One of the crucial events clearly involved in NAFLD progression is the lipotoxicity resulting from an excessive fatty acid (FFA) influx to hepatocytes. Hepatic lipotoxicity occurs when the capacity of the hepatocyte to manage and export FFAs as triglycerides (TGs) is overwhelmed. This review provides succinct insights into the molecular mechanisms responsible for lipotoxicity in NAFLD, including ER and oxidative stress, autophagy, lipoapotosis and inflammation. In addition, we highlight the role of CD36/FAT fatty acid translocase in NAFLD pathogenesis. Up-to-date, it is well known that CD36 increases FFA uptake and, in the liver, it drives hepatosteatosis onset and might contribute to its progression to NASH. Clinical studies have reinforced the significance of CD36 by showing increased content in the liver of NAFLD patients. Interestingly, circulating levels of a soluble form of CD36 (sCD36) are abnormally elevated in NAFLD patients and positively correlate with the histological grade of hepatic steatosis. In fact, the induction of CD36 translocation to the plasma membrane of the hepatocytes may be a determining factor in the physiopathology of hepatic steatosis in NAFLD patients. Given all these data, targeting the fatty acid translocase CD36 or some of its functional regulators may be a promising therapeutic approach for the prevention and treatment of NAFLD.
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Kimura M, Mikami K, Endo T, Matsuzaka M, Sawada N, Igarashi G, Iino C, Hasegawa T, Sawada K, Ando M, Tokuda I, Suganuma H, Matsumoto M, Nakaji S, Fukuda S. Association between serum β-carotene-to-retinol ratio and severity of hepatic steatosis in non-alcoholic fatty liver disease in Japan: A cross-sectional study. Nutrition 2020; 79-80:110984. [PMID: 32966920 DOI: 10.1016/j.nut.2020.110984] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/29/2020] [Accepted: 08/19/2020] [Indexed: 02/06/2023]
Abstract
OBJECTIVES Retinol and β-carotene have been reported to be involved in the pathogenesis of non-alcoholic fatty liver disease (NAFLD). However, clinical studies are limited. The aim of this study was to investigate the relationship between serum the ratio of β-carotene to retinol (SC/SR) and hepatic steatosis in NAFLD diagnosed by ultrasonography. METHODS The participants were 606 Japanese adults who were enrolled in a health survey. Clinical profile, dietary nutrition intake, blood biochemistry, serum retinol, and carotenoids were analyzed. NAFLD was defined as fatty liver on ultrasonography in the absence of other causes of steatosis. RESULTS Women had higher daily intake of α- and β-carotene, although there were no differences in daily retinol and carotenoid intake between participants with or without NAFLD in both men and women. Women had a higher SC/SR ratio than men regardless of the presence or absence of NAFLD, and the SC/SR ratio in women decreased with exacerbation of hepatic steatosis, whereas the SC/SR ratio in men did not change despite exacerbation of hepatic steatosis. After adjusting for confounding factors, the likelihood of NAFLD among participants in the highest quartile of SC/SR ratio decreased by two-thirds compared with participants in the lowest quartile (adjusted odds ratio, 0.64; 95% confidence interval, 0.21-1.92; P = 0.041). The SC/SR ratio was positively correlated with serum high-density lipoprotein cholesterol level, and negatively correlated with serum triacylglycerol level. CONCLUSIONS The SC/SR ratio was lower in NAFLD with sex differences, and was associated with the severity of hepatic steatosis and lipid profile. Future studies are needed to expand on these findings.
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Affiliation(s)
- Masayo Kimura
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kenichiro Mikami
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - Tetsu Endo
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masashi Matsuzaka
- Clinical Research Support Center, Hirosaki University Hospital, Hirosaki, Japan
| | - Naoya Sawada
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Go Igarashi
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Chikara Iino
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Takuma Hasegawa
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Kaori Sawada
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Masataka Ando
- Department of Diet and health Science, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Itoyo Tokuda
- Department of Oral Health Care, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | | | - Mai Matsumoto
- Innovation Division, KAGOME CO., LTD., Nasushiobara, Japan
| | - Shigeyuki Nakaji
- Department of Social Medicine, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shinsaku Fukuda
- Department of Gastroenterology, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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Klaebel JH, Rakipovski G, Andersen B, Lykkesfeldt J, Tveden-Nyborg P. Dietary Intervention Accelerates NASH Resolution Depending on Inflammatory Status with Minor Additive Effects on Hepatic Injury by Vitamin E Supplementation. Antioxidants (Basel) 2020; 9:antiox9090808. [PMID: 32882802 PMCID: PMC7555643 DOI: 10.3390/antiox9090808] [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: 07/09/2020] [Revised: 08/20/2020] [Accepted: 08/25/2020] [Indexed: 02/06/2023] Open
Abstract
Despite the lack of effective pharmacotherapy against nonalcoholic steatohepatitis (NASH) and liver fibrosis, vitamin E (vitE) supplementation and lifestyle modifications are recommended for the management of NASH due to promising clinical results. We recently reported a positive effect of supplementation with 800 IU vitE and atorvastatin on NASH resolution in guinea pigs. In the present study, we investigated the effect of high-dose vitE therapy combined with dietary intervention against progressive NASH and advanced fibrosis in the guinea pig model. Sixty-six guinea pigs received either high-fat (HF) or standard guinea pig chow diet (Control) for 25 weeks. Prior to eight weeks of intervention, HF animals were allocated into groups; dietary intervention (Chow) or dietary intervention with 2000 IU/d vitE supplementation (CvitE). Both Chow and CvitE reduced dyslipidemia, hepatic lipid accumulation and liver weight (p < 0.05), while CvitE further decreased hepatocellular ballooning (p < 0.05). Subanalyses of individual responses within intervention groups showed significant correlation between the hepatic hallmarks of NASH and lipid accumulation vs. inflammatory state (p < 0.05). Collectively, our results indicate that individual differences in sensitivity towards intervention and inflammatory status determine the potential beneficial effect of dietary intervention and high-dose vitE supplementation. Moreover, the study suggests that inflammation is a primary target in NASH treatment.
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Affiliation(s)
- Julie Hviid Klaebel
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 9, 1870 Frederiksberg C, Denmark; (J.H.K.); (J.L.)
| | - Günaj Rakipovski
- CV Research, Global Research, Novo Nordisk A/S, Novo Nordisk Park 1, 2670 Måløv, Denmark;
| | - Birgitte Andersen
- Liver Disease Research, Global Research, Novo Nordisk A/S, Novo Nordisk Park 1, 2670 Måløv, Denmark;
| | - Jens Lykkesfeldt
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 9, 1870 Frederiksberg C, Denmark; (J.H.K.); (J.L.)
| | - Pernille Tveden-Nyborg
- Department of Veterinary and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 9, 1870 Frederiksberg C, Denmark; (J.H.K.); (J.L.)
- Correspondence: ; Tel.: +45-353-331-67
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Fahmy HM, Mohammed FF. Hepatic injury induced by radio frequency waves emitted from conventional Wi-Fi devices in Wistar rats. Hum Exp Toxicol 2020; 40:136-147. [PMID: 32762465 DOI: 10.1177/0960327120946470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
In this study, the impact of standard 2.45 GHz radio frequency source (averaged whole-body specific absorption rate 0.01 W kg-1 24 h-1 daily for 40 consecutive days) on the liver of Wistar female rats was investigated. The rats were randomly divided into control and Wi-Fi-exposed groups. At the end of the exposure, liver samples were dissected from rats. Rats' livers were inspected through the evaluation of some oxidative stress parameters and the evaluation of glutamic oxaloacetic transaminase and glutamic-pyruvic transaminase levels as well as through the molecular investigation using Fourier transform infrared spectroscopy. Histopathological examination in addition to ultrastructure examination was also performed. The present data revealed that Wi-Fi exposure leads to severe oxidative stress in the rat liver. Furthermore, Wi-Fi exposure resulted in deleterious effects in the liver function and alters its molecular structure. Moreover, severe histological and ultrastructural alterations are reported in the hepatic tissues points to hepatotoxic effects induced by Wi-Fi exposure. In conclusion, care must be taken when using Wi-Fi emitting devices due to their severe impact on the liver. Public awareness of the need to decrease exposure time and increase the distance from Wi-Fi exposure sources must be raised wherever possible.
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Affiliation(s)
- H M Fahmy
- Biophysics Department, Faculty of Science, 63526Cairo University, Giza, Egypt
| | - F F Mohammed
- Pathology Department, Faculty of Veterinary Medicine, 63526Cairo University, Giza, Egypt
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