1
|
Sandoval C, Vera A, Birditt K, Godoy K, Carmine F, Caamaño J, Farías J. β-Carotene Supplementation Improves Pancreas Function during Moderate Ethanol Consumption: Initial Characterization from a Morphological Overview. Int J Mol Sci 2024; 25:1219. [PMID: 38279214 PMCID: PMC10815982 DOI: 10.3390/ijms25021219] [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: 12/24/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/28/2024] Open
Abstract
Alcohol is believed to harm acinar cells, pancreatic ductal epithelium, and pancreatic stellate cells. After giving ethanol and/or β-carotene to C57BL/6 mice, our goal was to evaluate their biochemistry, histology, and morpho-quantitative features. There were six groups of C57BL/6 mice: 1. Group C (control), 2. Group LA (low-dose alcohol), 3. Group MA (moderate-dose alcohol), 4. Group B (β-carotene), 5. Group LA + B (low-dose alcohol combined with β-carotene), and 6. Group MA + B (moderate-dose alcohol combined with β-carotene). After the animals were euthanized on day 28, each specimen's pancreatic tissue was taken. Lipase, uric acid, and amylase were assessed using biochemical assessment. Furthermore, the examination of the pancreatic structure was conducted using Ammann's fibrosis scoring system. Finally, the morpho-quantitative characteristics of the pancreatic islets and acinar cells were determined. In the serum of the MA + B group, there were higher amounts of total amylase (825.953 ± 193.412 U/L) and lower amounts of lipase (47.139 ± 6.099 U/L) (p < 0.05). Furthermore, Ammann's fibrosis punctuation in the pancreas revealed significant variations between the groups (p < 0.001). Finally, the stereological analysis of pancreatic islets showed that the groups were different (p < 0.001). These findings suggest that antioxidant treatments might help decrease the negative effects of ethanol exposure in animal models.
Collapse
Affiliation(s)
- Cristian Sandoval
- Escuela de Tecnología Médica, Facultad de Salud, Universidad Santo Tomás, Los Carreras 753, Osorno 5310431, Chile;
- Departamento de Ingeniería Química, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco 4811230, Chile
- Departamento de Medicina Interna, Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile
| | - Angeles Vera
- Carrera de Tecnología Médica, Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Katherine Birditt
- Physiology Development and Neuroscience Department, University of Cambridge, Cambridge CB2 1TN, UK;
| | - Karina Godoy
- Núcleo Científico y Tecnológico en Biorecursos (BIOREN), Universidad de La Frontera, Temuco 4811230, Chile;
| | - Florencia Carmine
- Carrera de Medicina, Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile;
| | - José Caamaño
- Departamento de Medicina Interna, Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile
- Laboratorio de Inmunohematología y Medicina Transfusional, Departamento de Medicina Interna, Facultad de Medicina, Universidad de La Frontera, Temuco 4811230, Chile
| | - Jorge Farías
- Departamento de Ingeniería Química, Facultad de Ingeniería y Ciencias, Universidad de La Frontera, Temuco 4811230, Chile
| |
Collapse
|
2
|
Song J, Choi S, Park SJ, Kim SM, Cho Y, Lee G, Kim JS, Park SM. Association of the amount of alcohol consumption with change in skeletal muscle and fat mass among Korean adults. Alcohol 2023; 111:9-16. [PMID: 37054822 DOI: 10.1016/j.alcohol.2023.04.003] [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: 01/30/2023] [Revised: 04/03/2023] [Accepted: 04/04/2023] [Indexed: 04/15/2023]
Abstract
The association between changes in alcohol consumption and body composition remains unclear. We investigated the association between changes in drinking habits and muscle mass and fat mass in adults. From the Health Examinees in Korea, the study population (N = 62 094) was categorized according to alcohol consumption (g of ethanol/day) and the changes in drinking habits between the baseline and follow-up periods were determined. Predicted muscle mass index (pMM), lean mass index, and fat mass index (pFM) were also calculated using age, sex, weight, height, and waist circumference. The β coefficient and adjusted means were then calculated using multiple linear regression analysis after adjusting for covariates, including follow-up duration, calorie intake, and protein intake. Compared to the almost-unchanged drinking group (reference; adjusted mean: -0.030 [95% confidence intervals: -0.048, -0.011]), there was no statistical difference or tendency of change in the pMMs of the most-decreased (-0.024 [-0.048, 0.000]) and the most-increased (-0.027 [-0.059, -0.013]) alcohol-consumed groups. The pFM decreased at those with less alcohol consumption (0.053 [-0.011, 0.119]) and increased with increased alcohol consumption (0.125 [0.063, 0.187]), compared to the no-change group (reference; 0.088 [0.036, 0.140]). Thus, changes in alcohol consumption were not significantly associated with changes in muscle mass. Increased alcohol consumption was associated with increased fat mass. Reducing the amount of alcohol consumption may improve body composition in terms of fat mass.
Collapse
Affiliation(s)
- Jihun Song
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea
| | - Seulggie Choi
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea
| | - Sun Jae Park
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea
| | - Sung Min Kim
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea
| | - Yoosun Cho
- Total Healthcare Center, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul, Republic of Korea
| | - Gyeongsil Lee
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea; Medical Food R&D Center, Esther Formula, Seoul, Republic of Korea
| | - Ji Soo Kim
- International Healthcare Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sang Min Park
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Republic of Korea; Department of Family Medicine, Seoul National University Hospital, Seoul, Republic of Korea.
| |
Collapse
|
3
|
Lin KY, Yang HY, Yang SC, Chen YL, Watanabe Y, Chen JR. Caulerpa lentillifera improves ethanol-induced liver injury and modulates the gut microbiota in rats. Curr Res Food Sci 2023; 7:100546. [PMID: 37483276 PMCID: PMC10362798 DOI: 10.1016/j.crfs.2023.100546] [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: 05/03/2023] [Revised: 07/02/2023] [Accepted: 07/03/2023] [Indexed: 07/25/2023] Open
Abstract
Caulerpa lentillifera (CL), also called sea grape, is a type of edible green alga which was reported to have antioxidative and immunomodulatory potential. This study aimed to investigate the hepatoprotective effects of CL in a rat model of chronic ethanol exposure. Wistar rats were assigned to four groups and supplied with an isocaloric control liquid diet (group C), an ethanol liquid diet (group E), a control liquid diet supplemented with 5% CL (group CC), or an ethanol liquid diet supplemented with 5% CL (group EC) for a 12-week experimental period. Ethanol feeding induced steatosis, inflammation, and changes in the gut microbiota by the end of the study, whereas CL supplementation significantly improved liver injuries and decreased circulatory endotoxin levels. Moreover, we also found that CL reversed ethanol-induced elevation of hepatic toll-like receptor 4 (TLR4), MyD88 protein expression, the phosphorylated-nuclear factor (NF)-κB-to-NF-κB ratio, and proinflammatory cytokine concentrations. Additionally, CL also increased the abundance of Akkermansia and tight junction proteins and diminished the Firmicutes-to-Bacteroidetes ratio. Dietary CL inhibited the progression of alcoholic liver disease, and some of the possible mechanisms may be strengthening the intestinal barrier function, alleviating dysbiosis, and modulating the TLR4 pathway.
Collapse
Affiliation(s)
- Kuan-Yu Lin
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Hsin-Yi Yang
- Department of Nutritional Science, Fu Jen Catholic University, New Taipei City, Taiwan
| | - Suh-Ching Yang
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Ya-Ling Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
| | - Y. Watanabe
- General Health Medical Center, Yokohama University of Pharmacy, Yokohama, Japan
| | - Jiun-Rong Chen
- School of Nutrition and Health Sciences, Taipei Medical University, Taipei, Taiwan
- Nutrition Research Center, Taipei Medical University Hospital, Taipei, Taiwan
| |
Collapse
|
4
|
Jaber MA, Ghanim BY, Al-Natour M, Arqoub DA, Abdallah Q, Abdelrazig S, Alkrad JA, Kim DH, Qinna NA. Potential biomarkers and metabolomics of acetaminophen-induced liver injury during alcohol consumption: A preclinical investigation on C57/BL6 mice. Toxicol Appl Pharmacol 2023; 465:116451. [PMID: 36894070 DOI: 10.1016/j.taap.2023.116451] [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: 12/29/2022] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/09/2023]
Abstract
The toxic effects of alcohol consumption on population health are significant worldwide and the synergistic toxic effects of concurrent intake of Acetaminophen and alcohol is of clinical concern. The understanding of molecular mechanisms beneath such synergism and acute toxicity may be enhanced through assessing underlying metabolomics changes. The molecular toxic activities of the model hereby, is assessed though metabolomics profile with a view to identifying metabolomics targets which could aid in the management of drug-alcohol interactions. In vivo exposure of C57/BL6 mice to APAP (70 mg/kg), single dose of ethanol (6 g/kg of 40%) and APAP after alcohol consumption was employed. Plasma samples were prepared and subjected to biphasic extraction for complete LC-MS profiling, and tandem mass MS2 analysis. Among the detected ions, 174 ions had significant (VIP scores >1 and FDR <0.05) changes between groups and were selected as potential biomarkers and significant variables. The presented metabolomics approach highlighted several affected metabolic pathways, including nucleotide and amino acid metabolism; aminoacyl-tRNA biosynthesis as well as bioenergetics of TCA and Krebs cycle. The impact of APAP on the concurrent administration of alcohol showed great biological interactions in the vital ATP and amino acid producing processes. The metabolomics changes show distinct metabolites which are altered to alcohol-APAP consumption while presenting several unneglectable risks on the vitality of metabolites and cellular molecules which shall be concerned.
Collapse
Affiliation(s)
- Malak A Jaber
- Department of Medicinal Chemistry and Analysis, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Bayan Y Ghanim
- University of Petra Pharmaceutical Center (UPPC), Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Mohammad Al-Natour
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Duaa Abu Arqoub
- Department of Pharmacology and Biomedical Sciences, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Qasem Abdallah
- Department of Pharmacology and Biomedical Sciences, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan
| | - Salah Abdelrazig
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Khartoum, Khartoum, Sudan
| | | | - Dong-Hyun Kim
- Centre for Analytical Bioscience, Advanced Material and Healthcare Technologies Division, School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Nidal A Qinna
- University of Petra Pharmaceutical Center (UPPC), Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan; Department of Pharmacology and Biomedical Sciences, Faculty of Pharmacy and Medical Sciences, University of Petra, Amman, Jordan.
| |
Collapse
|
5
|
Chu DT, Nguyen TL. Frizzled receptors and SFRP5 in lipid metabolism: Current findings and potential applications. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2023; 194:377-393. [PMID: 36631199 DOI: 10.1016/bs.pmbts.2022.06.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Lipid metabolism plays a very important role as the central metabolic process of the body. Lipid metabolism interruptions may cause many chronic diseases, for example, non-alcoholic fatty liver disease (NAFLD), diabetes, and obesity. Secreted Frizzled Related Protein 5 (SFRP5) and Frizzled receptors (FZD) are two newly discovered adipokines that are involved in lipid metabolism as well as lipogenesis. Both of these adipokines affect lipid metabolism and adipogenesis through three WNT signaling pathways (WNTSP): WNT/β-catenin, WNT/Ca2+, and WNT/JNK. FZD consists of 10 species, which have a cysteine-rich domain (CRD) to bind to the WNT protein for signal transduction. Depending on the type of ligand or co-receptor, they can stimulate or inhibit adipogenesis. In lipid metabolism, they play a role in recognizing fatty acids. In obesity, gene expression of the WNT/FZD receptors is significantly increased. In contrast, SFPR5 serves as an antagonist that can compete with FZD for inhibition of WNTSP. It is believed to have anti-inflammatory potential in obesity and diseases related to abnormal lipid metabolism. In these cases, the expression of SFRP5 is found to be very low leading to the promoted production of proinflammatory cytokines (PICS). Some methods that include using recombinant SFRP5 to improve non-alcoholic steatohepatitis (NASH), using secreted Ly-6/uPAR-related protein 1 (Slurp1) to regulate fat accumulation in the liver through SFRP5, and dietary and lifestyle interventions to improve overweight/obesity have been studied. However, understandings of the molecular mechanisms of these two adipokines and their interactions are very limited. Therefore, more in-depth studies are needed in the future.
Collapse
Affiliation(s)
- Dinh-Toi Chu
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Vietnam; Faculty of Applied Sciences, International School, Vietnam National University, Hanoi, Vietnam.
| | - Thanh-Lam Nguyen
- Center for Biomedicine and Community Health, International School, Vietnam National University, Hanoi, Vietnam
| |
Collapse
|
6
|
Algburi AF, Dursun I, Garip Ustaoglu S. The investigation of the effects of postnatal alcohol exposure on molecular content and antioxidant capacity of mice liver tissue. Life Sci 2022; 310:121102. [DOI: 10.1016/j.lfs.2022.121102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/04/2022] [Accepted: 10/14/2022] [Indexed: 11/09/2022]
|
7
|
Anthocyanin-Rich Extract of Red Cabbage Attenuates Advanced Alcohol Hepatotoxicity in Rats in Association with Mitochondrial Activity Modulation. EUROPEAN PHARMACEUTICAL JOURNAL 2022. [DOI: 10.2478/afpuc-2022-0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Aim
The liver is the main target for alcohol-induced injury. The aims of this work were to carry out further research into the mechanisms of liver damage induced by long-term administration of high-dose ethanol to rats and to evaluate the hepatoprotective potential of red cabbage (Brassica oleracea var. capitata f. rubra) anthocyanins (RCE).
Material/Methods
Male albino Wistar rats were divided into four groups. Group 1 was the control. Groups 2 through 4 received ethanol (4 g/kg body weight, 8 weeks). Group 3 received 11 mg RCE/kg and Group 4 received 22 mg RCE/kg. Dry lyophilised RCE was prepared from fresh red cabbage and analysed. We then evaluated the liver histology, mitochondrial respiration, and biochemical and immunological parameters in these groups of rats.
Results
The rat intoxication caused steatohepatitis characterised by macro- and microvesicular steatosis, ballooning and fatty liver dystrophies, lymphocytic infiltration, neutral lipid accumulation, and elevations of the serum activities of the liver injury marker enzymes. The treatment of alcohol-administered rats with RCE (mainly, cyanidin-3-diglucoside-5-glucoside, cyanidin-3-coumaroylrutinoside-5-hexoside, cyanidin-3-feruloylrutinoside-5-hexoside, delphinidin-3-feruloylrutinoside-hexoside) dose-dependently alleviated these pathological changes: The sizes of hepatocyte lipid vacuoles and the inflammatory signs were decreased, and the levels of the rat serum biochemical markers of liver injury, proinflammatory cytokines TNFα and IL-6, and the adipokine leptin (and not TGFβ) were significantly reversed. The RCE administration during intoxication completely recovered the changed liver mitochondria respiration rates and the ADP/O coefficient, as well as the phagocytic index and neutrophil metabolic activity in the blood. In experiments in vitro, RCE (13.6 μg/ml) modulated the respiratory parameters of isolated rat liver mitochondria, dissipated mitochondrial membrane potential, and inhibited the Ca2+-induced mitochondrial permeability transition.
Conclusion
The red cabbage anthocyanins could be useful for treatment of alcoholic liver injury due to their Ca2+-ionophoric/protonophoric activity, influence on Ca2+ homeostasis, and improving mitochondrial functions and inflammatory status.
Collapse
|
8
|
Wang Y, Fan Z, Yang M, Wang Y, Cao J, Khan A, Liu Y, Cheng G. Protective effects of E Se tea extracts against alcoholic fatty liver disease induced by high fat/alcohol diet: In vivo biological evaluation and molecular docking study. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 101:154113. [PMID: 35490493 DOI: 10.1016/j.phymed.2022.154113] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/26/2022] [Accepted: 04/14/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND With the development of economy and increased workload, chronic a high-fat/alcohol diet intake may lead to alcoholic fatty liver disease (AFLD), which is considered as a crucial health problem worldwide. E Se tea is produced of the leaves and leaf buds of Malus toringoides (Rehd.) Hughes in Tibet and has human health benefits with anti-hyperglycemia, hypertension, and hyperlipidemia effects. PURPOSE The objective of this work was to investigate the protective effect of aqueous-ethanol and hot-water extracts of E Se tea against chronic high-fat/alcohol diet induced AFLD rats. METHODS Firstly, to determine the chemical profiling of E Se tea extracts, UHPLC-ESI-HRMS analysis was conducted. Secondly, Sprague-Dawley male rats were used to establish the AFLD animal model by feeding with high-fat/alcohol diet. The animals were treated with E Se tea extracts for 12 weeks. Serum parameters were determined, histologic sections were prepared, and activities of enzymes related to inflammatory response and lipid metabolism imbalance were analyzed. The underlying mechanisms of E Se tea extracts alleviating AFLD were analyzed by immunofluorescence staining and Western blotting analysis. Lastly, key targets of 11-MT against AFLD were verified through molecular docking. RESULTS In this study, seven main compounds were confirmed or tentatively identified in E Se tea extracts by UHPLC-ESI-HRMS. The results revealed that both the extracts could reverse histopathological steatotic alternation of the liver and reduced the activity of liver damage markers (ALT, AST). E Se tea extracts mitigated oxidative stress by inhibiting CYP2E1 protein and lipid peroxidation parameters (MDA), but enhancing the endogenous antioxidants (CAT, GSH, SOD). Moreover, E Se tea extracts ameliorated inflammation by restraining the activation of NF-κB, consequently releasing the expression of proinflammatory cytokines (TNF-α, IL-6, IL-1β, COX-2 and iNOS). Subsequently, E Se tea extracts reduced hepatocyte apoptosis by increasing capase-9, caspase-3 and Bax protein expression but decreasing Bcl-2 protein expression. Furthermore, E Se tea extracts improved metabolism imbalance by stimulating AMPK/SREBP1/FAS and PPAR-α/CPT1 signaling pathway by regulating lipid metabolism parameters (TC, TG, HDL-C, LHD-C). Furthermore, molecular docking results indicated that 7 chemical constituents of E Se tea extracts had strong docking affinity with 4 key target proteins (AMPK, PPAR-α, NF-кB and Caspase-9). CONCLUSION E Se tea ameliorated AFLD through ameliorating inflammatory response, apoptosis, and lipid metabolism imbalance.
Collapse
Affiliation(s)
- Yongpeng Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Zhifeng Fan
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China; College of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China
| | - Meilian Yang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Yudan Wang
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China; College of Ethnic Medicine, Yunnan Minzu University, Kunming, 650500, China; National and Local Joint Engineering Research Center for Green Preparation Technology of Biobased Materials, Yunnan Minzu University, Kunming, 650500, China
| | - Jianxin Cao
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Afsar Khan
- Department of Chemistry, COMSATS University Islamabad, Abbottabad Campus, Abbottabad-22060, Pakistan
| | - Yaping Liu
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China
| | - Guiguang Cheng
- Faculty of Food Science and Engineering, Kunming University of Science and Technology, Kunming, 650500, China.
| |
Collapse
|
9
|
Hydrochloride Berberine ameliorates alcohol-induced liver injury by regulating inflammation and lipid metabolism. Biochem Biophys Res Commun 2022; 610:49-55. [DOI: 10.1016/j.bbrc.2022.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 04/02/2022] [Indexed: 11/24/2022]
|
10
|
Shang Y, Jiang M, Chen N, Jiang XL, Zhan ZY, Zhang ZH, Zuo RM, Wang H, Lan XQ, Ren J, Wu YL, Cui ZY, Nan JX, Lian LH. Inhibition of HMGB1/TLR4 Signaling Pathway by Digitoflavone: A Potential Therapeutic Role in Alcohol-Associated Liver Disease. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:2968-2983. [PMID: 35212223 DOI: 10.1021/acs.jafc.2c00195] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Digitoflavone (DG) is a natural flavonoid abundant in many fruits, vegetables, and medicinal plants. We investigated whether DG inhibits lipid accumulation and inflammatory responses in alcoholic liver disease (ALD) in vivo and in vitro. The mouse ALD model was established by chronically feeding male C57BL/6 mice an ethanol-containing Lieber-DeCarli liquid diet. In vitro, mouse peritoneal macrophages (MPMs) and mouse bone marrow-derived macrophages (BMDMs) were stimulated with LPS/ATP, whereas HepG2 cells and mouse primary hepatocytes were treated with ethanol. DG reduced the serum levels of transaminase and serum and hepatic levels of triglycerides and malondialdehyde in ALD mice. DG downregulated SREBP1 and its target genes and upregulated PPARα and its target genes in the liver of mice with ALD. DG inhibited TLR4-mediated NLRP3 inflammasome activation, consequently reversing the inflammatory response, including the production of HMGB1, IL-1β, and IL-36γ, as well as the infiltration of macrophages and neutrophils. DG blocked NLRP3/ASC/caspase-1 inflammasome activation and HMGB1 release in LPS/ATP-stimulated MPMs. When Tlr4 was knocked in LPS/ATP-stimulated BMDMs, HMGB1 production and release were blocked, and NLRP3-mediated cleavage and release of IL-1β was suppressed in Hmgb1-silenced BMDMs. DG amplified these inhibitory effects in Tlr4 or Hmgb1 knockdown BMDMs. In ethanol-exposed hepatocytes, DG reduced lipogenesis and promoted lipid oxidation by inhibiting the HMGB1-TLR4 signaling pathway while suppressing the inflammatory response induced by ethanol exposure. Our data demonstrated that DG inhibited the occurrence of lipid accumulation and the inflammatory response via the HMGB1-TLR4 axis, underscoring a promising approach and utility of DG for the treatment of ALD.
Collapse
Affiliation(s)
- Yue Shang
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Min Jiang
- Department of Pharmacology, Binzhou Medical University, Yantai Campus, Yantai, Shandong 264000, China
| | - Nan Chen
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Interdisciplinary of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji, Jilin Province 133002, China
| | - Xue-Li Jiang
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Zi-Ying Zhan
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Zhi-Hong Zhang
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Rong-Mei Zuo
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Hui Wang
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Xiao-Qi Lan
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Interdisciplinary of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji, Jilin Province 133002, China
| | - Jie Ren
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Yan-Ling Wu
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Interdisciplinary of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji, Jilin Province 133002, China
| | - Zhen-Yu Cui
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
| | - Ji-Xing Nan
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Interdisciplinary of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji, Jilin Province 133002, China
| | - Li-Hua Lian
- Key Laboratory of Traditional Chinese Korean Medicine Research (Yanbian University) of State Ethnic Affairs Commission, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province 133002, China
- Interdisciplinary of Biological Functional Molecules, College of Integration Science, Yanbian University, Yanji, Jilin Province 133002, China
| |
Collapse
|
11
|
Cioarca-Nedelcu R, Atanasiu V, Stoian I. Alcoholic liver disease-from steatosis to cirrhosis - a biochemistry approach. J Med Life 2022; 14:594-599. [PMID: 35027961 PMCID: PMC8742892 DOI: 10.25122/jml-2021-0081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 10/07/2021] [Indexed: 12/20/2022] Open
Abstract
Nowadays, chronic alcoholism and its health implications represent a global concern. Over three million deaths are linked to chronic alcohol intake every year. This article aims to spread awareness about the negative impact ethanol can have on almost every organ in the body, especially the liver. Understanding ethanol metabolism and the cellular pathways through which alcohol increases liver oxidative stress may prevent a broad spectrum of hepatic lesions such as steatosis, steatohepatitis, and, ultimately, cirrhosis. After a short review of ethanol metabolism and liver oxidative stress, each hepatic lesion will be individually discussed regarding the mechanism of apparition, treatment, and future targeted therapies.
Collapse
Affiliation(s)
| | - Valeriu Atanasiu
- Biochemistry Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| | - Irina Stoian
- Biochemistry Department, University of Medicine and Pharmacy Carol Davila, Bucharest, Romania
| |
Collapse
|
12
|
Zuo Z, Li Y, Zeng C, Xi Y, Tao H, Guo Y. Integrated Analyses Identify Key Molecules and Reveal the Potential Mechanism of miR-182-5p/FOXO1 Axis in Alcoholic Liver Disease. Front Med (Lausanne) 2021; 8:767584. [PMID: 34950682 PMCID: PMC8688759 DOI: 10.3389/fmed.2021.767584] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/15/2021] [Indexed: 12/20/2022] Open
Abstract
Background: Alcoholic liver disease (ALD) is one of the most common chronic liver diseases worldwide. However, the potential molecular mechanism in ALD development remains unclear. The objective of this work was to identify key molecules and demonstrate the underlying regulatory mechanisms. Methods: RNA-seq datasets were obtained from Gene Expression Omnibus (GEO), and key molecules in ALD development were identified with bioinformatics analysis. Alcoholic liver disease mouse and cell models were constructed using Lieber-DeCarli diets and alcohol medium, respectively. Quantitative real-time PCR and Western blotting were conducted to confirm the differential expression level. Dual-luciferase reporter assays were performed to explore the targeting regulatory relationship. Overexpression and knockdown experiments were applied to reveal the potential molecular mechanism in ALD development. Results: Between ALD patients and healthy controls, a total of 416 genes and 21 microRNAs (miRNAs) with significantly differential expression were screened. A comprehensive miRNA-mRNA network was established; within this network, the miR-182-5p/FOXO1 axis was considered a significant pathway in ALD lipid metabolism. Mouse and cell experiments validated that miR-182-5p was substantially higher in ALD than in normal livers, whereas the expression of FOXO1 was dramatically decreased by alcohol consumption (P < 0.05). Next, dual-luciferase reporter assays demonstrated that miR-182-5p directly targets the binding site of the FOXO1 3′UTR and inhibits its mRNA and protein expression. In addition, miR-182-5p was found to promote hepatic lipid accumulation via targeting the FOXO1 signaling pathway, and inhibition of the miR-182-5p/FOXO1 axis improved hepatic triglyceride (TG) deposition in ALD by regulating downstream genes involved in lipid metabolism. Conclusion: In summary, key molecules were identified in ALD development and a comprehensive miRNA–mRNA network was established. Meanwhile, our results suggested that miR-182-5p significantly increases lipid accumulation in ALD by targeting FOXO1, thereby providing novel scientific insights and potential therapeutic targets for ALD.
Collapse
Affiliation(s)
- Zhihua Zuo
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yiqin Li
- Department of Clinical Laboratory, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Chuyi Zeng
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yuge Xi
- Department of Clinical Laboratory, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Hualin Tao
- Department of Laboratory Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Yongcan Guo
- Department of Clinical Laboratory, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| |
Collapse
|
13
|
Monascin and Ankaflavin of Monascus purpureus Prevent Alcoholic Liver Disease through Regulating AMPK-Mediated Lipid Metabolism and Enhancing Both Anti-Inflammatory and Anti-Oxidative Systems. Molecules 2021; 26:molecules26206301. [PMID: 34684882 PMCID: PMC8538843 DOI: 10.3390/molecules26206301] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 10/11/2021] [Accepted: 10/15/2021] [Indexed: 12/20/2022] Open
Abstract
Alcohol metabolism causes an excessive accumulation of liver lipids and inflammation, resulting in liver damage. The yellow pigments monascin (MS) and ankaflavin (AK) of Monascus purpureus-fermented rice were proven to regulate ethanol-induced damage in HepG2 cells, but the complete anti-inflammatory and anti-fatty liver mechanisms in the animal model are still unclear. This study explored the roles of MS and AK in improving alcoholic liver injury. MS and AK were simultaneously fed to evaluate their effects and mechanisms in C57BL/6J mice fed the Lieber–DeCarli liquid alcohol diet for 6 weeks. The results indicated that MS and AK significantly reduced the serum aspartate aminotransferase and alanine aminotransferase activity, as well as the total liver cholesterol and triglyceride levels. The histopathological results indicated that MS and AK prevented lipid accumulation in the liver. MS and AK effectively enhanced the activity of antioxidant enzymes and reduced the degree of lipid peroxidation; AK was particularly effective and exhibited a superior preventive effect against alcoholic liver injury and fatty liver. In addition to inhibiting the phosphorylation of the MAPK family, MS and AK directly reduced TNF-α, IL-6, and IL-1β levels, thereby reducing NF-κB and its downstream iNOS and COX-2 expressions, as well as increasing PPAR-γ, Nrf-2, and HO-1 expressions to prevent liver damage. MS and AK also directly reduced TNF-α, IL-6, and IL-1β expression, thereby reducing the production of NF-κB and its downstream iNOS and COX-2, and increasing PPAR-γ, Nrf-2, and HO-1 expressions, preventing alcohol damage to the liver.
Collapse
|
14
|
Fong M, Scott S, Albani V, Adamson A, Kaner E. 'Joining the Dots': Individual, Sociocultural and Environmental Links between Alcohol Consumption, Dietary Intake and Body Weight-A Narrative Review. Nutrients 2021; 13:2927. [PMID: 34578805 PMCID: PMC8472815 DOI: 10.3390/nu13092927] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/23/2021] [Accepted: 08/23/2021] [Indexed: 11/17/2022] Open
Abstract
Alcohol is energy-dense, elicits weak satiety responses relative to solid food, inhibits dietary fat oxidation, and may stimulate food intake. It has, therefore, been proposed as a contributor to weight gain and obesity. The aim of this narrative review was to consolidate and critically appraise the evidence on the relationship of alcohol consumption with dietary intake and body weight, within mainstream (non-treatment) populations. Publications were identified from a PubMed keyword search using the terms 'alcohol', 'food', 'eating', 'weight', 'body mass index', 'obesity', 'food reward', 'inhibition', 'attentional bias', 'appetite', 'culture', 'social'. A snowball method and citation searches were used to identify additional relevant publications. Reference lists of relevant publications were also consulted. While limited by statistical heterogeneity, pooled results of experimental studies showed a relatively robust association between acute alcohol intake and greater food and total energy intake. This appears to occur via metabolic and psychological mechanisms that have not yet been fully elucidated. Evidence on the relationship between alcohol intake and weight is equivocal. Most evidence was derived from cross-sectional survey data which does not allow for a cause-effect relationship to be established. Observational research evidence was limited by heterogeneity and methodological issues, reducing the certainty of the evidence. We found very little qualitative work regarding the social, cultural, and environmental links between concurrent alcohol intake and eating behaviours. That the evidence of alcohol intake and body weight remains uncertain despite no shortage of research over the years, indicates that more innovative research methodologies and nuanced analyses are needed to capture what is clearly a complex and dynamic relationship. Also, given synergies between 'Big Food' and 'Big Alcohol' industries, effective policy solutions are likely to overlap and a unified approach to policy change may be more effective than isolated efforts. However, joint action may not occur until stronger evidence on the relationship between alcohol intake, food intake and weight is established.
Collapse
Affiliation(s)
- Mackenzie Fong
- Population Health Sciences Institute, Newcastle University, Newcastle-upon-Tyne NE1 4LP1, UK; (S.S.); (V.A.); (A.A.); (E.K.)
| | | | | | | | | |
Collapse
|
15
|
Lee CY, Lee CL. Comparison of the Improvement Effect of Deep Ocean Water with Different Mineral Composition on the High Fat Diet-Induced Blood Lipid and Nonalcoholic Fatty Liver Disease in a Mouse Model. Nutrients 2021; 13:nu13051732. [PMID: 34065270 PMCID: PMC8160870 DOI: 10.3390/nu13051732] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/12/2021] [Accepted: 05/17/2021] [Indexed: 12/14/2022] Open
Abstract
Accumulated lipid droplets in liver cause nonalcoholic fatty liver disease (NAFLD). Deep ocean water (DOW) containing high levels of magnesium, calcium, and potassium, etc. was proven to suppress hepatic lipid in obese rats fed high fat diet in the previous study. However, the effect of mineral compositions of DOW on the prevention of NAFLD is still unclear. This study removed calcium and potassium from DOW for modulating the mineral composition, and further compared the effects of DOW (D1(Mg + Ca + K)), DOW with low potassium (D2(Mg + Ca)), and DOW with low calcium and potassium (D3(Mg)) on the prevention of NAFLD in the mice model fed with high fat diet. In these results, DOW with high magnesium levels reduced serum and liver triglyceride and cholesterol levels and serum AST and ALT activities. However, when the calcium and/or potassium minerals were removed from DOW, the effects of reduction of triglyceride level, inhibition of acetyl-CoA carboxylase (ACC), fatty acid synthase (FAS), and peroxisome proliferator-activated receptor-alpha (PPAR-α) expressions, and activation of superoxide dismutase, catalase, and glutathione reductase activities would be weaker. In conclusion, DOW including magnesium, calcium and potassium minerals has the strongest preventive effect on NAFLD in a mouse model by increasing the antioxidant system and inhibiting fatty acid biosynthesis.
Collapse
|
16
|
Xiao T, Luo Z, Guo Z, Wang X, Ding M, Wang W, Shen X, Zhao Y. Multiple Roles of Black Raspberry Anthocyanins Protecting against Alcoholic Liver Disease. Molecules 2021; 26:molecules26082313. [PMID: 33923467 PMCID: PMC8073606 DOI: 10.3390/molecules26082313] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 04/11/2021] [Accepted: 04/14/2021] [Indexed: 02/02/2023] Open
Abstract
This study aimed to investigate the protective effect of black raspberry anthocyanins (BRAs) against acute and subacute alcoholic liver disease (ALD). Network analysis and docking study were carried out to understand the potential mechanism. Thereafter, the serum biochemical parameters and liver indexes were measured, the histopathological changes of the liver were analyzed in vivo. The results showed that all tested parameters were ameliorated after the administration of BRAs with alcohol. Meanwhile, there was increased protein expression of NF-κB and TGF-β in extracted livers, which was associated with hepatitis and hepatic fibrosis. Furthermore, BRAs and cyanidin-3-O-rutinoside exhibited cytotoxic effects on t-HSC/Cl-6, HepG2, and Hep3B and induced the apoptosis of HepG2 cells; downregulated the protein expression level of Bcl-2; upregulated the level of Bax; and promoted the release of cytochrome C, cleaved caspase-9, cleaved caspase-3, and cleaved PARP in HepG2 cells. In addition, the antioxidant activity of BRAs was tested, and the chemical components were analyzed by FT-ICR MS. The results proved that BRAs exert preventive effect on ALD through the antioxidant and apoptosis pathways.
Collapse
Affiliation(s)
- Ting Xiao
- The State Key Laboratory of Functions and Applications of Medicinal Plants, The Department of Pharmaceutic Preparation of Chinse Medicine, The High Educational Key Laboratory of Guizhou Province for Natural Medicianl Pharmacology and Druggability, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China;
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, China; (Z.L.); (X.W.); (M.D.); (W.W.)
- The Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guiyang 550025, China
| | - Zhonghua Luo
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, China; (Z.L.); (X.W.); (M.D.); (W.W.)
| | - Zhenghong Guo
- School of Pharmacy, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China;
| | - Xude Wang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, China; (Z.L.); (X.W.); (M.D.); (W.W.)
| | - Meng Ding
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, China; (Z.L.); (X.W.); (M.D.); (W.W.)
| | - Wei Wang
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, China; (Z.L.); (X.W.); (M.D.); (W.W.)
| | - Xiangchun Shen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, The Department of Pharmaceutic Preparation of Chinse Medicine, The High Educational Key Laboratory of Guizhou Province for Natural Medicianl Pharmacology and Druggability, School of Pharmaceutical Sciences, Guizhou Medical University, Guiyang 550025, China;
- The Key Laboratory of Optimal Utilizaiton of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, University Town, Guian New District, Guiyang 550025, China
- Correspondence: (X.S.); (Y.Z.); Tel.: +86-851-88416149 (X.S.); +86-24-43520309 (Y.Z.); Fax: +86-851-88416149 (X.S.); +86-24-43520309 (Y.Z.)
| | - Yuqing Zhao
- School of Functional Food and Wine, Shenyang Pharmaceutical University, Shenyang 110016, China; (Z.L.); (X.W.); (M.D.); (W.W.)
- Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
- Correspondence: (X.S.); (Y.Z.); Tel.: +86-851-88416149 (X.S.); +86-24-43520309 (Y.Z.); Fax: +86-851-88416149 (X.S.); +86-24-43520309 (Y.Z.)
| |
Collapse
|
17
|
Salama MS, Isunju JB, David SK, Muneza F, Ssemanda S, Tumwesigye NM. Prevalence and factors associated with alcohol consumption among persons with diabetes in Kampala, Uganda: a cross sectional study. BMC Public Health 2021; 21:719. [PMID: 33853561 PMCID: PMC8045270 DOI: 10.1186/s12889-021-10761-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 03/30/2021] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND The prevalence of diabetes has been rising increasing rapidly in middle- and low-income countries. In Africa, the World Health Organization projections anticipate diabetes mellitus to be the seventh leading cause of death in by 2030. Alcohol consumption influences diabetes evolution, in such a way that it can interfere with self-care behaviours which are important determinants of diabetes prognosis. In this study, we evaluated factors associated with alcohol consumption among persons with diabetes in Kampala to inform management policies and improve comprehensive diabetes care. METHODOLOGY A cross-sectional study was conducted systematically among 290 adults with diabetes, attending diabetic clinics at Mulago National Referral Hospital and St Francis Hospital Nsambya. Data were entered and analysed in Epi-Info version 7 and STATA 13 software. Modified Poisson regression was used to identify factors associated with alcohol consumption among persons with diabetes. All tests were two-sided and the significance level for all analyses was set to p < 0.05. RESULTS The prevalence of alcohol consumption among persons with diabetes was 23.45% [95% CI: 18.9-28.7%]. Divorced, separated and widowed patients (Adj PR: 0.42, 95% CI: 0.21-0.83); and Protestant (Adj PR: 0.44, 95% CI: 0.24-0.82); Muslim (Adj PR: 0.30, 95% CI: 0.14-0.62); and Pentecostal (Adj PR: 0.32, 95% CI: 0.15-0.65) patients were less likely to consume alcohol. Diabetic patients who had a diabetes duration greater than 5 years were more likely to consume alcohol (Adj PR: 1.90, 95% CI: 1.25-2.88). CONCLUSION Approximately one-quarter of participants consumed alcohol. However being catholic, never being married and having diabetes for more than 5 years predisposed persons with diabetes to alcohol consumption. Sensitization messages regarding alcohol consumption among persons with diabetes should be target patients who have never been married and those who have spent more than 5 years with diabetes; religion should also be considered as an important venue for health education in the community.
Collapse
Affiliation(s)
- Maki Sifa Salama
- Makerere University, Kampala, Uganda
- Mulago Hospital, Kampala, Uganda
| | | | | | | | | | | |
Collapse
|
18
|
Namachivayam A, Valsala Gopalakrishnan A. A review on molecular mechanism of alcoholic liver disease. Life Sci 2021; 274:119328. [PMID: 33711388 DOI: 10.1016/j.lfs.2021.119328] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/13/2021] [Accepted: 03/01/2021] [Indexed: 02/06/2023]
Abstract
Excessive alcohol consumption leads to damage to the organs of the body. More importantly, the liver is majorly affected organ upon alcohol consumption for most of the people; it causes inflammation and affects various pathways involved in metabolism. If the person is with high response of inflammatory in conduct with alcohol leads to the liver damage, which involves the creating effects with major cycle leads to homeostasis. In this review, we summarize the molecular mechanisms of alcoholic liver disease, such as the important role of genes, risk factors, pathogenicity, and role of micro RNA, the role of inflammation in the liver, and alcoholic fibrosis in the liver. There is increased oxidative stress, change in the biochemical alterations, and reduction in the antioxidant enzymes. These changes in the mechanism lead to liver injury. Hepatocyte nuclear factor-4 is the major transcriptional factor for the regulation of some genes involved in the lipid metabolism and oxidation process; with the help of the agonist, we can attenuate the level of the gene in the site of hepatic tissues, which will prevent the homeostatic condition. This review shows a clear view of the various pathways involved in alcohol consumption, which helps in the prevention of ALD using an agonist.
Collapse
Affiliation(s)
- Arunraj Namachivayam
- Department of Biomedical Sciences, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu 632014, India.
| |
Collapse
|
19
|
Kim YS, Kim SG. Endoplasmic reticulum stress and autophagy dysregulation in alcoholic and non-alcoholic liver diseases. Clin Mol Hepatol 2020; 26:715-727. [PMID: 32951410 PMCID: PMC7641579 DOI: 10.3350/cmh.2020.0173] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 08/31/2020] [Indexed: 12/15/2022] Open
Abstract
Alcoholic and non-alcoholic liver diseases begin from an imbalance in lipid metabolism in hepatocytes as the earliest response. Both liver diseases share common disease features and stages (i.e., steatosis, hepatitis, cirrhosis, and hepatocellular carcinoma). However, the two diseases have differential pathogenesis and clinical symptoms. Studies have elucidated the molecular basis underlying similarities and differences in the pathogenesis of the diseases; the factors contributing to the progression of liver diseases include depletion of sulfhydryl pools, enhanced levels of reactive oxygen and nitrogen intermediates, increased sensitivity of hepatocytes to toxic cytokines, mitochondrial dysfunction, and insulin resistance. Endoplasmic reticulum (ER) stress, which is caused by the accumulation of misfolded proteins and calcium depletion, contributes to the pathogenesis, often causing catastrophic cell death. Several studies have demonstrated a mechanism by which ER stress triggers liver disease progression. Autophagy is an evolutionarily conserved process that regulates organelle turnover and cellular energy balance through decomposing damaged organelles including mitochondria, misfolded proteins, and lipid droplets. Autophagy dysregulation also exacerbates liver diseases. Thus, autophagy-related molecules can be potential therapeutic targets for liver diseases. Since ER stress and autophagy are closely linked to each other, an understanding of the molecules, gene clusters, and networks engaged in these processes would be of help to find new remedies for alcoholic and non-alcoholic liver diseases. In this review, we summarize the recent findings and perspectives in the context of the molecular pathogenesis of the liver diseases.
Collapse
Affiliation(s)
- Yun Seok Kim
- College of Pharmacy, Seoul National University, Seoul, Korea
| | - Sang Geon Kim
- College of Pharmacy, Seoul National University, Seoul, Korea.,College of Pharmacy, Dongguk University, Goyang, Korea
| |
Collapse
|
20
|
Lanng AR, Gasbjerg LS, Bergmann NC, Gillum MP, Rehfeld JF, Helsted MM, Møller HJ, Grønbæk H, Vilsbøll T, Knop FK. The effect of acute intragastric vs. intravenous alcohol administration on inflammation markers, blood lipids and gallbladder motility in healthy men. Alcohol 2020; 87:29-37. [PMID: 32335270 DOI: 10.1016/j.alcohol.2020.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 04/17/2020] [Accepted: 04/17/2020] [Indexed: 01/09/2023]
Abstract
Ethanol intake increases plasma concentrations of triglycerides and chronic ethanol use impairs lipid metabolism and causes chronic inflammation. The gut plays an important role in metabolic handling of nutrients, including lipids, and a leaky gut associated with alcohol intake, allowing inflammatory signals to the portal vein, has been proposed to constitute a mechanism by which ethanol induces hepatic inflammation. We compared the effects of enteral and parenteral administration of ethanol on a range of circulating inflammation markers (including soluble CD163, a marker of liver macrophage activation), lipids, cholecystokinin (CCK) and fibroblast growth factor 19 (FGF19) as well as gallbladder volume. On two separate and randomized study days, we subjected healthy men (n = 12) to double-blinded intragastric ethanol infusion (IGEI) and isoethanolemic intravenous ethanol infusion (IVEI). Blood was sampled and ultrasonographic evaluation of gallbladder volume was performed at frequent intervals for 4 h after initiation of ethanol administration on both days. Little or no effects were observed on plasma levels of inflammation markers during IGEI and IVEI, respectively. Circulating levels of total, low-density lipoprotein and high-density lipoprotein cholesterol decreased after ethanol administration independently of the administration form. Triglyceride and very low-density lipoprotein (VLDL) cholesterol concentrations increased more after IGEI compared to IVEI. IVEI had no effect on plasma CCK and caused an increased gallbladder volume whereas IGEI elicited a CCK response (P < 0.0001) without affecting gallbladder volume. Circulating FGF19 concentrations decreased equally in response to both ethanol administration forms. In conclusion, by evaluating a range of circulating inflammation markers during IGEI and IVEI we were not able to detect signs of systemic low-grade inflammation originating from the presence of ethanol in the gut. IVEI increased gallbladder volume whereas IGEI increased plasma CCK (with neutral effect on gallbladder volume), increased plasma VLDL cholesterol and triglyceride concentrations; indicating that the enteral route of administration may influence ethanol's effects on lipid metabolism.
Collapse
Affiliation(s)
- Amalie R Lanng
- Center for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lærke S Gasbjerg
- Center for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark; Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Natasha C Bergmann
- Center for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - Matthew P Gillum
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Jens F Rehfeld
- Department of Clinical Biochemistry, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Mads M Helsted
- Center for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark
| | - Holger J Møller
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | - Henning Grønbæk
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, Aarhus, Denmark
| | - Tina Vilsbøll
- Center for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Steno Diabetes Center Copenhagen, Gentofte, Copenhagen, Denmark
| | - Filip K Knop
- Center for Clinical Metabolic Research, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark; Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark; Steno Diabetes Center Copenhagen, Gentofte, Copenhagen, Denmark.
| |
Collapse
|
21
|
Kamran U, Towey J, Khanna A, Chauhan A, Rajoriya N, Holt A. Nutrition in alcohol-related liver disease: Physiopathology and management. World J Gastroenterol 2020; 26:2916-2930. [PMID: 32587439 PMCID: PMC7304106 DOI: 10.3748/wjg.v26.i22.2916] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/08/2020] [Accepted: 05/21/2020] [Indexed: 02/06/2023] Open
Abstract
Malnutrition encompassing both macro- and micro-nutrient deficiency, remains one of the most frequent complications of alcohol-related liver disease (ArLD). Protein-energy malnutrition can cause significant complications including sarcopenia, frailty and immunodepression in cirrhotic patients. Malnutrition reduces patient’s survival and negatively affects the quality of life of individuals with ArLD. Moreover, nutritional deficit increases the likelihood of hepatic decompensation in cirrhosis. Prompt recognition of at-risk individuals, early diagnosis and treatment of malnutrition remains a key component of ArLD management. In this review, we describe the pathophysiology of malnutrition in ArLD, review the screening tools available for nutritional assessment and discuss nutritional management strategies relevant to the different stages of ArLD, ranging from acute alcoholic hepatitis through to decompensated end stage liver disease.
Collapse
Affiliation(s)
- Umair Kamran
- The Liver Unit, Queen Elizabeth Hospital Birmingham, Birmingham B15 2GW, United Kingdom
| | - Jennifer Towey
- Department of Dietetics, Queen Elizabeth Hospital Birmingham, Birmingham B15 2GW, United Kingdom
| | - Amardeep Khanna
- The Liver Unit, Queen Elizabeth Hospital Birmingham, Birmingham B15 2GW, United Kingdom
| | - Abhishek Chauhan
- The Liver Unit, Queen Elizabeth Hospital Birmingham, Birmingham B15 2GW, United Kingdom
- Centre for Liver Research, Institute of Immunology and Inflammation, and National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, The Medical School, University of Birmingham, Birmingham B15 2TT, United Kingdom
| | - Neil Rajoriya
- The Liver Unit, Queen Elizabeth Hospital Birmingham, Birmingham B15 2GW, United Kingdom
| | - Andrew Holt
- The Liver Unit, Queen Elizabeth Hospital Birmingham, Birmingham B15 2GW, United Kingdom
| |
Collapse
|
22
|
Lee HS, Park JJ, Roh HG, Lim SD. Unusual clinicopathological presentation of nontraumatic cerebral fat embolism: Two-case report. Medicine (Baltimore) 2020; 99:e19574. [PMID: 32195967 PMCID: PMC7220548 DOI: 10.1097/md.0000000000019574] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
RATIONALE Fat embolism syndrome (FES) is characterized by the classical triad of cerebral, respiratory, and cutaneous manifestations. In contrast, cerebral fat embolism (CFE), corresponding to incomplete pure type FES, is much rarer and usually follows trauma. CFE typically shows a "starfield" pattern on diffusion-weighted magnetic resonance imaging due to the involvement of multiple small arteries. We report 2 unusual cases of CFE that showed a nontraumatic etiology and the involvement of a single dominant cerebral artery. PATIENT CONCERNS Case 1 was a 33-year-old woman without a history of trauma who visited the emergency room due to hemiparesis and hemisensory deficits. She was a heavy smoker and had used oral contraceptives for several years. Most importantly, she had 2 experiences of autologous fat grafting 2 months previously. Magnetic resonance angiography (MRA) revealed acute occlusion of the right middle cerebral artery. Case 2 was an 80-year-old man suddenly presented with dizziness, ataxia, and left-sided sensorimotor dysfunction. He had a history of hypertension, untreated atrial fibrillation, and chronic alcoholism. MRA demonstrated the occlusion of the distal basilar artery. DIAGNOSIS Case 1: Microscopic findings demonstrated variable sized fat vacuoles intermixed with moderate amounts of thrombi. Case 2: Histologically, mature adipocytes were intermingled with fibrin, blood cells, and a fragment of entrapped soft tissue resembling the vessel wall. INTERVENTION Case 1 and 2 underwent aspirational thrombectomy guided by transfemoral cerebral angiography. OUTCOME Case 1 recovered well but Case 2 still suffers from gait ataxia. LESSONS CFE can rarely occur in various nontraumatic conditions, with or without evident etiology. Furthermore, it may not show characteristic clinicopathological manifestations. Therefore, careful follow up of those who have undergone procedures that are likely to trigger FES or who have hemodynamic or hypercoagulable risk factors is needed.
Collapse
Affiliation(s)
- Hye Seung Lee
- Department of Pathology, Konkuk University School of Medicine, Seoul, Republic of Korea
- Department of Pathology, Korea Clinical Laboratory, Seoul, Republic of Korea
| | | | - Hong Gee Roh
- Department of Radiology, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - So Dug Lim
- Department of Pathology, Konkuk University School of Medicine, Seoul, Republic of Korea
| |
Collapse
|
23
|
Zhang Y, Jiang M, Cui BW, Jin CH, Wu YL, Shang Y, Yang HX, Wu M, Liu J, Qiao CY, Zhan ZY, Ye H, Zheng GH, Jin Q, Lian LH, Nan JX. P2X7 receptor-targeted regulation by tetrahydroxystilbene glucoside in alcoholic hepatosteatosis: A new strategy towards macrophage-hepatocyte crosstalk. Br J Pharmacol 2020; 177:2793-2811. [PMID: 32022249 DOI: 10.1111/bph.15007] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 12/26/2019] [Accepted: 01/21/2020] [Indexed: 12/11/2022] Open
Abstract
BACKGROUND AND PURPOSE Regulating macrophage-hepatocyte crosstalk through P2X7 receptors has led to new pharmacological strategies to reverse alcoholic hepatosteatosis. We investigated how tetrahydroxystilbene glucoside (2354glu), isolated from Polygonum multiflorum, modulates macrophage-hepatocyte crosstalk during alcoholic hepatosteatosis. EXPERIMENTAL APPROACH A model of alcoholic hepatosteatosis was established by giving ethanol intragastrically to C57BL/6 mice. HepG2 cells were incubated in conditioned medium from LPS+ATP-activated THP-1 human macrophages with silenced or overexpressed P2X7 receptors. THP-1 macrophages or mouse peritoneal macrophages were pretreated with 2354glu for 1 hr prior to LPS+ATP stimulation. Western blots, RT-PCR and immunohistochemical analysis were used, along with over-expression and silencing of P2X7 receptors. KEY RESULTS Knockdown or overexpression of P2X7 receptors in THP-1 macrophages affected release of mature IL-1β and, subsequently, modulated lipid metabolism in HepG2 cells via the LKB-AMPK pathway. 2354glu ameliorated alcoholic hepatosteatosis in mice by regulating LKB1-AMPK-SREBP1 pathway and its target genes. Suppression of P2X7 receptor activation by 2354glu inhibited IL-1β release and reduced macrophage and neutrophil infiltration. In macrophages stimulated with LPS+ATP, expression of P2X7 receptors, caspase-1 and NF-κB, release of IL-1β, calcium influx and PI uptake were reduced by 2354glu. SIRT1-LKB1-AMPK-SREBP1 axis-mediated lipid accumulation in HepG2 cells was reduced when they were cultured with conditioned media from LPS+ATP-activated THP-1 macrophages pretreated with 2354glu. CONCLUSION AND IMPLICATIONS Modulation of P2X7 receptors in macrophages regulated lipid accumulation in hepatocytes during alcoholic hepatosteatosis. 2354glu might be a promising candidate that targets P2X7 receptors in macrophages interacting with hepatocytes during alcoholic hepatosteatosis.
Collapse
Affiliation(s)
- Yu Zhang
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Min Jiang
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Ben-Wen Cui
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Cheng Hua Jin
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Yan-Ling Wu
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Yue Shang
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Hong-Xu Yang
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Mei Wu
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Jian Liu
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Chun-Ying Qiao
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Zi-Ying Zhan
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Huan Ye
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Guang-Hao Zheng
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Quan Jin
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Li-Hua Lian
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China
| | - Ji-Xing Nan
- Key Laboratory for Traditional Chinese Korean Medicine of Jilin Province, College of Pharmacy, Yanbian University, Yanji, China.,Clinical Research Center, Yanbian University Hospital, Yanji, China
| |
Collapse
|
24
|
Lee JS, Mukhopadhyay P, Matyas C, Trojnar E, Paloczi J, Yang YR, Blank BA, Savage C, Sorokin AV, Mehta NN, Vendruscolo JCM, Koob GF, Vendruscolo LF, Pacher P, Lohoff FW. PCSK9 inhibition as a novel therapeutic target for alcoholic liver disease. Sci Rep 2019; 9:17167. [PMID: 31748600 PMCID: PMC6868240 DOI: 10.1038/s41598-019-53603-6] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 11/04/2019] [Indexed: 12/19/2022] Open
Abstract
Alcoholic liver disease (ALD) causes significant morbidity and mortality, and pharmacological treatment options are limited. In this study, we evaluated the PCSK9 inhibitor alirocumab, a monoclonal antibody that robustly reduces low-density lipoprotein cholesterol (LDL-C), for the treatment of ALD using a rat model of chronic alcohol exposure. Alirocumab (50 mg/kg) or vehicle was administered weekly for 6 weeks to rats receiving a 12% alcohol liquid diet or an isocaloric control diet. At the end of the alcohol exposure protocol, serum and liver samples were obtained for molecular characterization and histopathological analysis. PCSK9 inhibition with alirocumab attenuated alcohol-induced hepatic triglyceride accumulation through regulation of lipid metabolism (mRNA expression of modulators of fatty acid synthesis (FAS) and catabolism (PPARα and CPT1)), hepatocellular injury (ALT), hepatic inflammation (mRNA expression of pro-inflammatory cytokines/chemokines (TNFa, IL-1β, IL-22, IL-33, IL-17α, IL-2, MIP-2, and MCP-1), and neutrophil infiltration (myeloperoxidase staining)). Alirocumab treatment also attenuated alcohol-induced PCSK9 mRNA elevation and upregulated LDL-receptor (LDL-R) via modulation of the transcription factors (SREBP-1, SREBP-2, and E2F1) in liver. We demonstrated that chronic anti-PCSK9 treatment using the monoclonal antibody alirocumab attenuated alcohol-induced steatohepatitis in the rat model. Given the large unmet clinical need for effective and novel treatments for ALD, anti-PCSK9 treatment with the monoclonal antibody that spares liver metabolism is a viable new therapeutic possibility. Future studies are needed to elucidate the exact role of PCSK9 in ALD and alcohol use disorder (AUD) and to evaluate efficacy and safety of anti-PCSK9 treatment in clinical populations with ALD/AUD.
Collapse
Affiliation(s)
- Ji Soo Lee
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Partha Mukhopadhyay
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Csaba Matyas
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Eszter Trojnar
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Janos Paloczi
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Yuan Ru Yang
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Brandon A Blank
- Neurobiology of Addiction Section, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
| | - Cody Savage
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Alexander V Sorokin
- Lipoprotein Metabolism Section, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Nehal N Mehta
- Section of Inflammation and Cardiometabolic Diseases, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Janaina C M Vendruscolo
- Neurobiology of Addiction Section, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
| | - George F Koob
- Neurobiology of Addiction Section, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
| | - Leandro F Vendruscolo
- Neurobiology of Addiction Section, National Institute on Drug Abuse, National Institutes of Health, Baltimore, MD, USA
| | - Pal Pacher
- Laboratory of Cardiovascular Physiology and Tissue Injury, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA
| | - Falk W Lohoff
- Section on Clinical Genomics and Experimental Therapeutics, National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.
| |
Collapse
|
25
|
Azizi M, Abbasi N, Mohamadpour M, Bakhtiyari S, Asadi S, Shirzadpour E, Aidy A, Mohamadpour M, Amraei M. Investigating the effect of Crocus sativus L. petal hydroalcoholic extract on inflammatory and enzymatic indices resulting from alcohol use in kidney and liver of male rats. J Inflamm Res 2019; 12:269-283. [PMID: 31632125 PMCID: PMC6790211 DOI: 10.2147/jir.s216125] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 08/16/2019] [Indexed: 12/12/2022] Open
Abstract
Background Studies have shown that consumption of high levels of alcohol causes many negative effects on the liver and kidneys where antioxidant ingredients can be a proper solution to reducing the resulting damages. So, the present study investigated the effect of hydroalcoholic extract of Crocus sativus L. (saffron) petal with antioxidant properties on the changes in inflammatory and enzymatic indices resulting from alcohol use in the male rats’ kidney and liver. Materials and methods After preparing the extract, LD50 was determined and high-performance liquid chromatography (HPLC) was employed to specify the type and the rate of the active ingredients of the extract. Then, 36 male Wistar rats were randomly assigned into six groups (n=6). The first group was only administered with normal saline and the second group only received ethyl alcohol 6 mL/kg/day·BW. The third and the fourth groups received ethyl alcohol 6 mL/kg/day·BW plus 167.5 and 335 mg/kg/day·BW saffron petal extract for 8 weeks. The fifth and the sixth groups received ethyl alcohol 6 mL/kg/day·BW for the first 8 weeks and were subsequently gavage fed on saffron extract for 167.5 and 335 mg/kg/day·BW, respectively, during the next 8 weeks. In the beginning and after the termination of the treatment, blood samples were collected from all rats. Results The LD50 of the extract was about 670 mg/kg. The HPLC results indicated that the extract contains important antioxidant ingredients. At the end of the study, the serum concentration of the inflammatory indices, renal enzymes, and hepatic enzymes experienced a significant reduction in all of the intervened groups compared to the negative control group (minimum significant difference: P<0.05) except for the treatment group 1. Conclusion Based on the current results, the extract has a protective effect in a dosage-dependent way and greater protective roles were documented for higher dosages.
Collapse
Affiliation(s)
- Monireh Azizi
- Department of Anatomy, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Naser Abbasi
- Biotechnology and Medicinal Plants Research Center, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran.,Department of Pharmacology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Mojtaba Mohamadpour
- Student Research Committee, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Salar Bakhtiyari
- Department of Clinical Biochemistry, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Sirous Asadi
- Student Research Committee, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Ehsan Shirzadpour
- Department of Clinical Biochemistry, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Ali Aidy
- Biotechnology and Medicinal Plants Research Center, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Mahmoud Mohamadpour
- Department of Clinical Biochemistry, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Mansour Amraei
- Biotechnology and Medicinal Plants Research Center, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran.,Department of Physiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| |
Collapse
|
26
|
Lai JR, Ke BJ, Hsu YW, Lee CL. Dimerumic acid and deferricoprogen produced by Monascus purpureus attenuate liquid ethanol diet-induced alcoholic hepatitis via suppressing NF-κB inflammation signalling pathways and stimulation of AMPK-mediated lipid metabolism. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.05.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
27
|
Hu CQ, Xu M, Yang BB, Liu XJ, Bo QL, Zhang C, Xu DX. Vitamin D Deficiency Attenuates Acute Alcohol-Induced Hepatic Lipid Accumulation in Mice. Lipids 2019; 54:651-663. [PMID: 31463983 DOI: 10.1002/lipd.12188] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 12/12/2022]
Abstract
Vitamin D deficiency has been frequently reported in chronic liver disease. However, its influence on hepatic lipid accumulation in alcoholic liver disease remains unclear. The present study investigated the effects of vitamin D deficiency on acute alcohol-induced hepatic lipid metabolism in mice. Mice were fed with vitamin D deficient diet, in which vitamin D was depleted for 12 weeks to establish an animal model of vitamin D deficiency. Some mice were administered a single gavage of alcohol (4 g/kg bodyweight) before they were euthanized. Results show that feeding mice with vitamin D deficient diet did not induce hepatic lipid accumulation. In contrast, vitamin D deficiency markedly reduced alcohol-induced triacylglycerol (TAG) content and prevented hepatic lipid accumulation. Moreover, vitamin D deficiency significantly attenuated alcohol-induced sterol-regulated element-binding protein (SREBP)-1c activation, which regulates genes for hepatic fatty acid (FA) and TAG synthesis, and the expression of its target genes fatty acid synthase (Fasn) and acetyl-coenzyme- A carboxylase (Acc). In addition, vitamin D deficiency alleviated alcohol-induced downregulation of hepatic nuclear peroxisome proliferator-activated receptor (PPAR)α, which governs FA transport and β-oxidation, and the expression of Carnitine palmitoyltransferase (Cpt)-1α, cytochrome P450, family 4, subfamily a, polypeptide (Cyp4a)10, and Cyp4a14, which are key enzymes for hepatic fatty acids β-oxidation and ω-oxidation. Taken together, these results suggest that vitamin D deficiency is not a direct risk factor for hepatic lipid accumulation. Vitamin D deficiency alleviates acute alcohol-induced hepatic lipid accumulation through inhibiting hepatic de novo fatty acid syntheses and promoting fatty acid β-oxidation and ω-oxidation.
Collapse
Affiliation(s)
- Chun-Qiu Hu
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China.,Department of Nutrition and Hygiene, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Meng Xu
- Department of Nutrition and Hygiene, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Bing-Bing Yang
- Department of Gastroenterology, Fourth Affiliated Hospital, Anhui Medical University, Hefei, 230012, China
| | - Xiao-Jing Liu
- Department of Paediatrics, First Affiliated Hospital, Anhui Medical University, Hefei, 230022, China
| | - Qing-Li Bo
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China.,Department of Nutrition and Hygiene, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - Cheng Zhang
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China
| | - De-Xiang Xu
- Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, 230032, China
| |
Collapse
|
28
|
Ye M, Xu M, Ji C, Ji J, Ji F, Wei W, Yang S, Zhou B. Alterations in the Transcriptional Profile of the Liver Tissue and the Therapeutic Effects of Propolis Extracts in Alcohol-induced Steatosis in Rats. AN ACAD BRAS CIENC 2019; 91:e20180646. [PMID: 31411259 DOI: 10.1590/0001-3765201920180646] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 01/08/2019] [Indexed: 12/20/2022] Open
Abstract
The hepatoprotective effects of the ethanolic extracts of propolis (EEP) on alcohol-induced liver steatosis were investigated in Wistar rats. Chronic alcoholic fatty liver was induced by administration of 52% alcohol to male Wistar rats at the dose of 1% body weight for 7 weeks. Then animals were simultaneously treated with 50% ethanol solutions of EEP or normal saline at the dose of 0.1% body weight for 4 further weeks. Serological analyses and liver histopathology studies were performed to investigate the development of steatosis. Microarray analysis was conducted to investigate the alterations of hepatic gene expression profiling. Our results showed that 4-week treatment of EEP helped to restore the levels of various blood indices, liver function enzymes and the histopathology of liver tissue to normal levels. Results from the microarray analysis revealed that the hepatic expressions of genes involved in lipogenesis were significantly down-regulated by EEP treatment, while the transcriptional expressions of functional genes participating in fatty acids oxidation were markedly increased. The ability of EEP to reduce the negative effects of alcohol on liver makes propolis a potential natural product for the alternative treatment of alcoholic fatty liver.
Collapse
Affiliation(s)
- Manhong Ye
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Mengting Xu
- College of Bioscience and Biotechnology, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Chao Ji
- Fubiao Biotech Co., Ltd., Huai-an 211799, Jiangsu Province, China
| | - Jian Ji
- Fubiao Biotech Co., Ltd., Huai-an 211799, Jiangsu Province, China
| | - Fubiao Ji
- Fubiao Biotech Co., Ltd., Huai-an 211799, Jiangsu Province, China
| | - Wanhong Wei
- Joint International Research Laboratory of Agricultural & Agri-Product Safety, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Shengmei Yang
- Joint International Research Laboratory of Agricultural & Agri-Product Safety, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| | - Bin Zhou
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, Jiangsu Province, China
| |
Collapse
|
29
|
Alsharari ZD, Leander K, Sjögren P, Carlsson A, Cederholm T, de Faire U, Hellenius ML, Marklund M, Risérus U. Association between carbohydrate intake and fatty acids in the de novo lipogenic pathway in serum phospholipids and adipose tissue in a population of Swedish men. Eur J Nutr 2019; 59:2089-2097. [PMID: 31350637 PMCID: PMC7351873 DOI: 10.1007/s00394-019-02058-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 07/15/2019] [Indexed: 11/24/2022]
Abstract
PURPOSE Fatty acid composition in blood and adipose tissue (AT) is a useful biomarker of dietary fat quality. However, circulating saturated fatty acids (SFA) and monounsaturated fatty acids (MUFA) have been proposed to also reflect carbohydrate-induced de novo lipogenesis (DNL) and stearoyl-CoA desaturase (SCD) activity. We aimed to test the hypothesis that high carbohydrate intake is related to SFA and MUFA in serum or AT in a Swedish population. METHODS Fatty acid composition was measured in serum phospholipids (PL) and AT by gas chromatography in 63-year-old men (n = 299). Carbohydrate and alcohol intake was assessed (validated 7-day food records) in relation to total SFA, 16:0 (palmitate), 16:1 (palmitoleate), and estimated SCD activity (16:1n-7/16:0-ratio) in serum PL and in AT, respectively. RESULTS Total carbohydrate intake was inversely associated with 16:0 in PL (P = 0.005), independently of BMI. Disaccharides were non-linearly (restricted cubic splines) and weakly associated with 16:1 and SCD activity in PL (nonlinear trend, P ≤ 0.02) but not AT. Carbohydrate intake and SCD expression were not associated (P ≥ 0.08, n = 81). Alcohol intake was, however, linearly associated with 16:0 in PL (P < 0.001), and with 16:1 (P < 0.001) and SCD activity (P ≤ 0.005) in both PL and AT. CONCLUSIONS Higher carbohydrate intake from sugar-rich foods or beverages was not clearly reflected by higher SFA or SCD activity in serum PL or AT. Alcohol was, however, associated with higher SFA and MUFA.
Collapse
Affiliation(s)
- Zayed D Alsharari
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 564, 75122, Uppsala, Sweden
| | - Karin Leander
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Per Sjögren
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 564, 75122, Uppsala, Sweden
| | - Axel Carlsson
- Division of Family Medicine and Primary Care, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
| | - Tommy Cederholm
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 564, 75122, Uppsala, Sweden
| | - Ulf de Faire
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Cardiology Unit, Department of Medicine, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Mai-Lis Hellenius
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Cardiology Unit, Department of Medicine, Karolinska University Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Matti Marklund
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 564, 75122, Uppsala, Sweden
| | - Ulf Risérus
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 564, 75122, Uppsala, Sweden.
| |
Collapse
|
30
|
Samala N, Gawrieh S, Tang Q, Lourens SG, Shah VH, Sanyal AJ, Liangpunsakul S, Chalasani N. Clinical Characteristics and Outcomes of Mild to Moderate Alcoholic Hepatitis. ACTA ACUST UNITED AC 2019; 1:161-165. [PMID: 32952446 DOI: 10.1002/ygh2.353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Introduction & Aim Much is known about alcoholic hepatitis (AH) that is severe enough to require hospitalization. The characteristics of individuals with alcoholic hepatitis presenting with mild to moderate severity are not well understood. In this study we investigated the risk factors, characteristics, and outcomes of mild to moderate AH. Methods Two hundred and fifty five Individuals with AH enrolled into a multicenter, prospective, observational study between 12/2014 and 4/2018 were included. Participants were seen at enrollment, 6 months, and 12 months. Mild to moderate AH (M-AH) was defined as MELD ≤ 20 at presentation whereas severe AH as MELD ≥ 21. Results One hundred individuals had M-AH whereas 155 had severe AH. Individuals with M-AH were older (49 vs 44 years, p=0.01), had lower BMI (27 vs 31 kg/m2, p=0.0007) and more likely to be male (68% vs 55%, p=0.046) compared to severe AH group. A higher proportion in M-AH group consumed coffee in the last 5 years compared to the severe AH (29% vs 18%, p=0.03), and fewer had PNPLA3 risk allele G (p=0.019) compared to the severe AH group. Average drinks per drinking day (12.9 vs 10.7, p=0.13) and total number of drinks in last 30 day period (331 vs 280, p=0.14) were not different between two groups. Compared to severe AH, patients with M-AH had significantly lower mortality at 30 days (2% vs. 13.6%), 90 days (3% vs. 22.6%), and 12 months (10.4% vs. 31.4%) (p <0.001 for all). Conclusions Individuals with mild to moderate AH were older, less obese, drank coffee more often and carried more favorable PNPLA3 genotype compared to severe AH, despite similar alcohol consumption. Mild to moderate AH had substantial mortality with one in ten dying by 12 months. (Word Count 286).
Collapse
Affiliation(s)
- Niharika Samala
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Samer Gawrieh
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Qing Tang
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Spencer G Lourens
- Department of Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Vijay H Shah
- Division of Gastroenterology and Hepatology, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Arun J Sanyal
- Division of Gastroenterology, Department of Internal Medicine, Virginia Commonwealth University, Richmond, Virginia
| | - Suthat Liangpunsakul
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.,Roudebush Veterans Administration Medical Center, Indianapolis, Indiana.,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Naga Chalasani
- Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| |
Collapse
|
31
|
Yan S, Zhou J, Chen X, Dong Z, Yin XM. Diverse Consequences in Liver Injury in Mice with Different Autophagy Functional Status Treated with Alcohol. THE AMERICAN JOURNAL OF PATHOLOGY 2019; 189:1744-1762. [PMID: 31199920 DOI: 10.1016/j.ajpath.2019.05.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 05/01/2019] [Accepted: 05/07/2019] [Indexed: 02/07/2023]
Abstract
Alcoholic fatty liver disease is often complicated by other pathologic insults, such as viral infection or high-fat diet. Autophagy plays a homeostatic role in the liver but can be compromised by alcohol, high-fat diet, or viral infection, which in turn affects the disease process caused by these etiologies. To understand the full impact of autophagy modulation on alcohol-induced liver injury, several genetic models of autophagy deficiency, which have different levels of functional alterations, were examined after acute binge or chronic-plus-binge treatment. Mice given alcohol with either mode and induced with deficiency in liver-specific Atg7 shortly after the induction of Atg7 deletion had elevated liver injury, indicating the protective role of autophagy. Constitutive hepatic Atg7-deficient mice, in which Atg7 was deleted in embryos, were more susceptible with chronic-plus-binge but not with acute alcohol treatment. Constitutive hepatic Atg5-deficient mice, in which Atg5 was deleted in embryos, were more susceptible with acute alcohol treatment, but liver injury was unexpectedly improved with the chronic-plus-binge regimen. A prolonged autophagy deficiency may complicate the hepatic response to alcohol treatment, likely in part due to endogenous liver injury. The complexity of the relationship between autophagy deficiency and alcohol-induced liver injury can thus be affected by the timing of autophagy dysfunction, the exact autophagy gene being affected, and the alcohol treatment regimen.
Collapse
Affiliation(s)
- Shengmin Yan
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Jun Zhou
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Minimal Invasive Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoyun Chen
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Zheng Dong
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China; Department of Cell Biology and Anatomy, Medical College of Georgia and Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia
| | - Xiao-Ming Yin
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana; Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, China.
| |
Collapse
|
32
|
Zavodnik I, Buko V, Lukivskaya O, Lapshina E, Ilyich T, Belonovskaya E, Kirko S, Naruta E, Kuzmitskaya I, Budryn G, Zyzelevicz D, Orach J, Zakrzeska A, Kiryukhina L. Cranberry (Vaccinium macrocarpon) peel polyphenol-rich extract attenuates rat liver mitochondria impairments in alcoholic steatohepatitis in vivo and after oxidative treatment in vitro. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
|
33
|
Neupane S, Cordoyiannis G, Renner FU, Losada-Pérez P. Real-Time Monitoring of Interactions between Solid-Supported Lipid Vesicle Layers and Short- and Medium-Chain Length Alcohols: Ethanol and 1-Pentanol. Biomimetics (Basel) 2019; 4:biomimetics4010008. [PMID: 31105194 PMCID: PMC6477617 DOI: 10.3390/biomimetics4010008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 01/10/2019] [Accepted: 01/16/2019] [Indexed: 11/21/2022] Open
Abstract
Lipid bilayers represent the interface between the cell and its environment, serving as model systems for the study of various biological processes. For instance, the addition of small molecules such as alcohols is a well-known process that modulates lipid bilayer properties, being considered as a reference for general anesthetic molecules. A plethora of experimental and simulation studies have focused on alcohol’s effect on lipid bilayers. Nevertheless, most studies have focused on lipid membranes formed in the presence of alcohols, while the effect of n-alcohols on preformed lipid membranes has received much less research interest. Here, we monitor the real-time interaction of short-chain alcohols with solid-supported vesicles of dipalmitoylphosphatidylcholine (DPPC) using quartz crystal microbalance with dissipation monitoring (QCM-D) as a label-free method. Results indicate that the addition of ethanol at different concentrations induces changes in the bilayer organization but preserves the stability of the supported vesicle layer. In turn, the addition of 1-pentanol induces not only changes in the bilayer organization, but also promotes vesicle rupture and inhomogeneous lipid layers at very high concentrations.
Collapse
Affiliation(s)
- Shova Neupane
- Institute for Materials Research (IMO), Hasselt University, 3590 Diepenbeek, Belgium.
- IMEC vzw. Division IMOMEC, 3590 Diepenbeek, Belgium.
| | - George Cordoyiannis
- Faculty for Industrial Engineering, 8000 Novo Mesto, Slovenia.
- Biomolecular Physics Laboratory, National Centre for Scientific Research "Demokritos", 15310 Aghia Paraskevi, Greece.
| | - Frank Uwe Renner
- Institute for Materials Research (IMO), Hasselt University, 3590 Diepenbeek, Belgium.
- IMEC vzw. Division IMOMEC, 3590 Diepenbeek, Belgium.
| | - Patricia Losada-Pérez
- Soft Matter Physics Laboratory, Physics Department, Université Libre de Bruxelles (ULB), Campus de La Plaine, CP223, Boulevard du Triomphe, 1050 Brussels, Belgium.
| |
Collapse
|
34
|
Zhang L, Jin YP. Toxic effects of combined treatment of 1,2-dichloroethane and ethanol on mouse brain and the related mechanisms. J Biochem Mol Toxicol 2019; 33:e22294. [PMID: 30664321 DOI: 10.1002/jbt.22294] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 11/06/2018] [Accepted: 01/03/2019] [Indexed: 12/16/2022]
Abstract
The aim of this study was to explore the mechanisms of brain damage induced by the combined treatment of mice with 1,2-dichloroethane (1,2-DCE) and ethanol. Mice were divided into control group; 1,2-DCE-intoxicated group; ethanol-treated group; and low-, medium-, and high-dose combined treatment groups. Histological observations along with brain organ coefficients and water content were used to measure the brain damage directly and indirectly. The levels of nonprotein sulfhydryls, malondialdehyde (MDA), and superoxide dismutase activity were used as parameters to evaluate oxidative stress in the brain. Protein and messenger RNA (mRNA) levels of cytochrome P450 2E1 (CYP2E1), zonula occludens-1 (occludin and zo-1), aquaporin-4 (AQP4), nuclear factor erythroid 2-related factor 2 (Nrf2), heme oxygenase (HO)-1, and the γ-glutamyl cysteine synthetase catalytic and modulatory subunits (γ-GCSc, GR, and γ-GCSm) in the brain were examined by Western blot analysis and quantitative polymerase chain reaction analysis, respectively. Effects of the combined treatment of 1,2-DCE and ethanol were evaluated by analysis of variance with a factorial design. The results suggested that combined exposure to ethanol and 1,2-DCE synergistically increased CYP2E1 protein and mRNA levels, accelerated the metabolism of ethanol and 1,2-DCE in the brain tissue, induced high production of reactive oxygen species (ROS), and increased MDA levels, thereby damaging the blood-brain barrier and causing obvious pathological changes in brain tissue. However, the increased level of ROS activated the Nrf2 signal transduction pathway, promoting the expression of HO-1 and glutathione-related antioxidant enzymes in the brain to protect the cells from oxidative damage.
Collapse
Affiliation(s)
- Lin Zhang
- Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China.,Department of Community Nursing, School of Nursing, Jinzhou Medical University, Jinzhou, Liaoning, People's Republic of China
| | - Ya-Ping Jin
- Department of Occupational and Environmental Health, School of Public Health, China Medical University, Shenyang, Liaoning, People's Republic of China
| |
Collapse
|
35
|
Ribeiro A, Igual-Perez MJ, Santos Silva E, Sokal EM. Childhood Fructoholism and Fructoholic Liver Disease. Hepatol Commun 2019; 3:44-51. [PMID: 30619993 PMCID: PMC6312651 DOI: 10.1002/hep4.1291] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 11/06/2018] [Indexed: 12/17/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is an emerging entity, becoming the most prevalent pediatric chronic liver disease. Its broad spectrum of histological findings, comorbidities, and complications, including cirrhosis and liver failure, can occur in childhood, emphasizing the severity of pediatric NAFLD. Current lifestyle and diet modifications have been linked to the increasing prevalence of NAFLD, including the rise of fructose consumption, a monosaccharide present in foods that contain added sugar, such as sugar‐sweetened beverages. Excessive fructose consumption is believed to cause addiction like alcohol and other drugs. As such, the new term “fructoholism” refers to the consumption of a substance (fructose) that can cause psychological and physical damage and become a major public health concern, highlighting the seriousness of the excessive consumption of fructose in the pediatric age. Hepatic fructose metabolization leads to hepatic steatosis and progression to fibrosis through mechanisms comparable to alcoholic liver disease, hence the term “fructoholic liver disease.” Conclusion: The importance of implementing reliable global strategies, such as education campaigns to promote healthy diet, increasing taxes on foods that contain added sugars, subsidies to promote accessibility to fruit and vegetables, and strict food industry regulation to reduce sugar intake in children and adolescents, cannot be overemphasized.
Collapse
Affiliation(s)
- Andreia Ribeiro
- Service de Gastroentérologie et Hépatologie Pédiatrique Cliniques Universitaires Saint-Luc, Université Catholique de Louvain Brussels Belgium
| | - Maria-Jose Igual-Perez
- Service de Gastroentérologie et Hépatologie Pédiatrique Cliniques Universitaires Saint-Luc, Université Catholique de Louvain Brussels Belgium
| | - Ermelinda Santos Silva
- Pediatric Gastroenterology and Hepatology Department Centro Materno-Infantil do Norte, Centro Hospitalar Universitário do Porto Porto Portugal
| | - Etienne M Sokal
- Service de Gastroentérologie et Hépatologie Pédiatrique Cliniques Universitaires Saint-Luc, Université Catholique de Louvain Brussels Belgium
| |
Collapse
|
36
|
Ohashi K, Pimienta M, Seki E. Alcoholic liver disease: A current molecular and clinical perspective. LIVER RESEARCH 2018; 2:161-172. [PMID: 31214376 PMCID: PMC6581514 DOI: 10.1016/j.livres.2018.11.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Heavy alcohol use is the cause of alcoholic liver disease (ALD). The ALD spectrum ranges from alcoholic steatosis to steatohepatitis, fibrosis, and cirrhosis. In Western countries, approximately 50% of cirrhosis-related deaths are due to alcohol use. While alcoholic cirrhosis is no longer considered a completely irreversible condition, no effective anti-fibrotic therapies are currently available. Another significant clinical aspect of ALD is alcoholic hepatitis (AH). AH is an acute inflammatory condition that is often comorbid with cirrhosis, and severe AH has a high mortality rate. Therapeutic options for ALD are limited. The established treatment for AH is corticosteroids, which improve short-term survival but do not affect long-term survival. Liver transplantation is a curative treatment option for alcoholic cirrhosis and AH, but patients must abstain from alcohol use for 6 months to qualify. Additional effective therapies are needed. The molecular mechanisms underlying ALD are complex and have not been fully elucidated. Various molecules, signaling pathways, and crosstalk between multiple hepatic and extrahepatic cells contribute to ALD progression. This review highlights established and emerging concepts in ALD clinicopathology, their underlying molecular mechanisms, and current and future ALD treatment options.
Collapse
Affiliation(s)
- Koichiro Ohashi
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Michael Pimienta
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA,University of California San Diego, School of Medicine, La Jolla, CA, USA
| | - Ekihiro Seki
- Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA,University of California San Diego, School of Medicine, La Jolla, CA, USA,Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, USA,Department of Medicine, University of California Los Angeles, David Geffen School of Medicine, Los Angeles, CA, USA,Corresponding author. Division of Digestive and Liver Diseases, Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA., (E. Seki)
| |
Collapse
|
37
|
Nikolova-Karakashian M. Alcoholic and non-alcoholic fatty liver disease: Focus on ceramide. Adv Biol Regul 2018; 70:40-50. [PMID: 30455063 DOI: 10.1016/j.jbior.2018.11.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 11/13/2018] [Accepted: 11/13/2018] [Indexed: 12/24/2022]
Abstract
Sphingolipids are class of metabolically distinct lipids that play structural and signaling functions in all organisms. Sphingolipid metabolism is deregulated during various diseases such as cancer, neurological and immune disorders, and metabolic syndrome. With the advancement of sphingo-lipidomics and sphingo-genomics, an understanding of the specific roles of ceramide, the quintessential bioactive sphingolipid, in fatty liver disease has taken shape. Two major pathways for ceramide generation, the de novo pathway and the sphingomyelinase pathway are activated in the course of both, the non-alcoholic and the alcoholic, forms of fatty liver disease. The mechanisms of activation of these two pathways are distinct and reflect the different disease etiology in each case; at the same time, common processes impacted by the resulting ceramide overproduction involve lipotoxocity, ER/mitochondrial stress, inflammation, and de-regulation of hepatic lipid metabolism. Studies in human patients and animal models have delineated specific enzymes and ceramide species that are involved at the different stages of the disease, and represent novel pharmaceutical targets for successful management of fatty liver disease.
Collapse
Affiliation(s)
- Mariana Nikolova-Karakashian
- Department of Physiology, University of Kentucky College of Medicine, 800 Rose Str., MS 508, Lexington, KY, 40536, United States.
| |
Collapse
|
38
|
Shirpoor A, Heshmati E, Kheradmand F, Gharalari FH, Chodari L, Naderi R, Majd FN, Samadi M. Increased hepatic FAT/CD36, PTP1B and decreased HNF4A expression contributes to dyslipidemia associated with ethanol-induced liver dysfunction: Rescue effect of ginger extract. Biomed Pharmacother 2018; 105:144-150. [PMID: 29852391 DOI: 10.1016/j.biopha.2018.05.121] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 05/21/2018] [Accepted: 05/23/2018] [Indexed: 12/20/2022] Open
Abstract
The association between chronic alcohol consumption and the development of alcpholic liver disease is a very well known phenomenon, but the precise underlying molecular mediators involved in ethanol-induced liver disease remain elusive. This study aimed to characterize the lipid metabolism alterations and the molecular mediators which are related to lipid metabolism in liver under the heavy ethanol exposure alone or combined with ginger extract. Twenty-four male wistar rats were assigned into three groups, namely control, ethanol, and ginger extract treated ethanol (GETE) groups. Six weeks after the treatment, the ethanol group showed a significant increase in fatty acid translocase (FAT)/CD36, protein tyrosine phosphatase 1B (PTP1B) and decrease hepatocyte nuclear factor 4 Alpha (HNF4A) genes expressions compared to the control group. The ethanol administration also significantly increased plasma LDL, cholesterol, triglyceride, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) compared to the control group. Moreover, compared to the control group, the ethanol group showed liver histhological changes, such as fibrosis, focal microvesicular steatosis, some apoptotic hepatocytes, spotty necrosis, portal lymphocytic inflammation, mallory-denk bodies, giant mitochondria, piecemeal necrosis. Consumption of ginger extract along with ethanol, partially ameliorated gene expression alteration and histological changes, improved undesirable lipid profile and liver enzymes changes compare to those in the ethanol group. These findings indicate that ethanol-induced liver abnormalities may in part be associated with lipid homeostasis changes mediated by overexpression of FAT/CD36, PTP1B and downexpressionof HNF4A genes. It also show that these effects can be reduced by using ginger extract as an antioxidant and anti-inflammatory agent.
Collapse
Affiliation(s)
- Alireza Shirpoor
- Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran; Nephrology and Kidney Transplant Research Center, Urmia University of Medical Sciences, Urmia, Iran.
| | - Elaheh Heshmati
- Department of Nutrition, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Fatemeh Kheradmand
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | | | - Leila Chodari
- Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Roya Naderi
- Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran; Nephrology and Kidney Transplant Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Farideh Nezami Majd
- Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Mahrokh Samadi
- Department of Physiology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| |
Collapse
|
39
|
Samala N, Lourens SG, Shah VH, Kamath PS, Sanyal AJ, Crabb DW, Tang Q, Radaeva S, Liangpunsakul S, Chalasani N. Posttraumatic Stress Disorder in Patients with Heavy Alcohol Consumption and Alcoholic Hepatitis. Alcohol Clin Exp Res 2018; 42:1933-1938. [PMID: 30080255 DOI: 10.1111/acer.13862] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Accepted: 07/28/2018] [Indexed: 12/15/2022]
Abstract
BACKGROUND Lifetime prevalence of posttraumatic stress disorder (PTSD) in the general population is reported to be 6.8%. Individuals with alcohol dependence and substance abuse have high prevalence of PTSD. However, the prevalence of PTSD in heavy drinkers with alcoholic hepatitis (AH) is not known.The study's aim was to determine the prevalence of PTSD in heavy drinkers with and without AH. METHODS We screened for PTSD using the Primary Care-PTSD questionnaire among heavy drinkers with (n = 115) and without (n = 64) AH participating in a multicenter observational study in which participants were followed up to 12 months following their enrollment. RESULTS The prevalence of PTSD in heavy drinkers with AH was 34% and was not different from heavy drinking controls without liver disease (34%). In the entire group screened for PTSD, the presence of PTSD was associated with higher alcohol consumption as reported by average drinks per last 30 days and average grams of alcohol consumed per day (p = 0.047 for both tests), but not associated with relapse of heavy drinking or mortality. Similarly, patients with AH and PTSD did not have higher relapse rate or higher mortality compared to patients with AH but no PTSD. CONCLUSIONS Compared to previously reported prevalence in general population, heavy drinking individuals with or without AH have significantly higher prevalence of PTSD. However, PTSD was not associated with higher relapse rate or higher mortality in this population.
Collapse
Affiliation(s)
- Niharika Samala
- Department of Medicine , Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Spencer G Lourens
- Department of Biostatistics , Indiana University School of Medicine, Indianapolis, Indiana
| | - Vijay H Shah
- Department of Medicine , Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Patrick S Kamath
- Department of Medicine , Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Arun J Sanyal
- Department of Medicine , Division of Gastroenterology, Virginia Commonwealth University, Richmond, Virginia
| | - David W Crabb
- Department of Medicine , Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Qing Tang
- Department of Biostatistics , Indiana University School of Medicine, Indianapolis, Indiana
| | - Svetlana Radaeva
- National Institute on Alcohol Abuse and Alcoholism , Bethesda, Maryland
| | - Suthat Liangpunsakul
- Department of Medicine , Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana.,Division of Gastroenterology and Hepatology, Department of Medicine, Indiana University School of Medicine, Indianapolis, Indiana.,Department of Medicine, Roudebush Veterans Administration Medical Center, Indianapolis, Indiana
| | - Naga Chalasani
- Department of Medicine , Division of Gastroenterology and Hepatology, Indiana University School of Medicine, Indianapolis, Indiana
| |
Collapse
|
40
|
Sengupta M, Griffett K, Flaveny CA, Burris TP. Inhibition of Hepatotoxicity by a LXR Inverse Agonist in a Model of Alcoholic Liver Disease. ACS Pharmacol Transl Sci 2018; 1:50-60. [PMID: 31696159 DOI: 10.1021/acsptsci.8b00003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Alcohol abuse is a major cause of liver disease and mortality worldwide and is a significant public health issue. Patients with alcoholic liver disease (ALD) have severe hepatic lipid accumulation, inflammation, and fibrosis. Therapies for ALD are very limited and even abstinence from alcohol consumption does not necessarily protect patients from progression of the disease. We sought to evaluate the efficacy of a liver X receptor (LXR) inverse agonist, SR9238, in an animal model of ALD. SR9238 suppresses hepatic lipogenesis, a pathological hallmark of ALD, and we hypothesized that targeting suppression of hepatic metabolic pathways that are activated in ALD may be an effective treatment for the disease. A chronic ethanol diet with or without a final ethanol binge treatment was used to induce ALD in mice. Mice were administered the liver specific LXR inverse agonist SR9238 for 4 weeks after the mice had been maintained on the ethanol diet for 14 days. Mice developed all the hallmarks of advanced ALD demonstrating significant pathophysiology and hepatotoxicity. SR9238 significantly attenuated liver injury and hepatic steatosis and fibrosis was nearly eliminated in SR9238 treated mice. SR9238 treatment reversed the damage associated with chronic ethanol use returning the liver to near normal morphology. These results indicate that inhibiting LXR activity using the inverse agonist has a hepatoprotective effect in rodent models of ALD; thus, this pharmacological approach may be efficacious for treatment of ALD in humans.
Collapse
Affiliation(s)
- Monideepa Sengupta
- Department of Pharmacology & Physiology, Saint Louis University School of Medicine, St. Louis, Missouri 63104, United States
| | - Kristine Griffett
- Center for Clinical Pharmacology, Washington University School of Medicine and St. Louis College of Pharmacy, St. Louis, Missouri 63110, United States
| | - Colin A Flaveny
- Department of Pharmacology & Physiology, Saint Louis University School of Medicine, St. Louis, Missouri 63104, United States
| | - Thomas P Burris
- Center for Clinical Pharmacology, Washington University School of Medicine and St. Louis College of Pharmacy, St. Louis, Missouri 63110, United States
| |
Collapse
|
41
|
Gamberi T, Magherini F, Modesti A, Fiaschi T. Adiponectin Signaling Pathways in Liver Diseases. Biomedicines 2018; 6:biomedicines6020052. [PMID: 29735928 PMCID: PMC6027295 DOI: 10.3390/biomedicines6020052] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/26/2018] [Accepted: 05/02/2018] [Indexed: 02/07/2023] Open
Abstract
In the liver, adiponectin regulates both glucose and lipid metabolism and exerts an insulin-sensitizing effect. The binding of adiponectin with its specific receptors induces the activation of a proper signaling cascade that becomes altered in liver pathologies. This review describes the different signaling pathways in healthy and diseased hepatocytes, also highlighting the beneficial role of adiponectin in autophagy activation and hepatic regeneration.
Collapse
Affiliation(s)
- Tania Gamberi
- Dipartimento di Scienze Biomediche, Sperimentali e Cliniche "Mario Serio", Università degli Studi di Firenze, Viale Morgagni 50, 50134 Firenze, Italy.
| | - Francesca Magherini
- Dipartimento di Scienze Biomediche, Sperimentali e Cliniche "Mario Serio", Università degli Studi di Firenze, Viale Morgagni 50, 50134 Firenze, Italy.
| | - Alessandra Modesti
- Dipartimento di Scienze Biomediche, Sperimentali e Cliniche "Mario Serio", Università degli Studi di Firenze, Viale Morgagni 50, 50134 Firenze, Italy.
| | - Tania Fiaschi
- Dipartimento di Scienze Biomediche, Sperimentali e Cliniche "Mario Serio", Università degli Studi di Firenze, Viale Morgagni 50, 50134 Firenze, Italy.
| |
Collapse
|
42
|
Yokoyama A, Taniki N, Hara S, Haysashi E, Nakamoto N, Mizukami T, Maruyama K, Yokoyama T. Slow-metabolizing ADH1B and inactive heterozygous ALDH2 increase vulnerability to fatty liver in Japanese men with alcohol dependence. J Gastroenterol 2018; 53:660-669. [PMID: 29063269 DOI: 10.1007/s00535-017-1402-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 10/10/2017] [Indexed: 02/04/2023]
Abstract
BACKGROUND Genetic polymorphisms of alcohol dehydrogenase-1B (ADH1B; rs1229984, His48Arg) and aldehyde dehydrogenase-2 (ALDH2; rs671, Glu504Lys) affect body weight, body fat, and lipid metabolism in individuals with alcohol dependence, and the aim of this study was to identify their determinants in relation to the development of fatty liver. METHODS We evaluated associations between the presence of fatty liver and ADH1B and ALDH2 genotypes and other factors in 1604 Japanese men who had been admitted for treatment of alcohol dependence. RESULTS Fatty liver was diagnosed when ultrasonography showed both hepatorenal contrast and liver brightness. Age-adjusted usual alcohol intake did not differ according to ADH1B or ALDH2 genotypes. A multivariate analysis showed that the adjusted odds ratio (OR, 95% confidence interval) of slow-metabolizing ADH1B Arg/Arg carriers was 1.61 (1.27-2.03) for fatty liver and 1.82 (1.37-2.41) for fatty liver with deep attenuation in comparison with the ADH1B His/Arg or His/His carriers, and that the OR of inactive heterozygous ALDH2 Glu/Lys carriers was 1.43 (1.08-1.91) for fatty liver and 1.84 (1.31-2.59) for fatty liver with deep attenuation in comparison with the ALDH2 Glu/Glu carriers. Younger age, shorter interval between the last drink and the ultrasound examination, larger body mass index, and absence of cirrhosis were identified as other positive determinants for fatty liver. CONCLUSIONS The ADH1B Arg/Arg genotype and the ALDH2 Glu/Lys genotype were positive determinants of fatty liver in the subjects. These results suggest that slow ethanol and acetaldehyde metabolism accelerates the development of alcoholic fatty liver in heavy drinkers.
Collapse
Affiliation(s)
- Akira Yokoyama
- National Hospital Organization Kurihama Medical and Addiction Center, 5-3-1 Nobi, Yokosuka, Kanagawa, 239-0841, Japan.
| | - Nobuhito Taniki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Sachiko Hara
- National Hospital Organization Kurihama Medical and Addiction Center, 5-3-1 Nobi, Yokosuka, Kanagawa, 239-0841, Japan
| | - Emiko Haysashi
- National Hospital Organization Kurihama Medical and Addiction Center, 5-3-1 Nobi, Yokosuka, Kanagawa, 239-0841, Japan
| | - Nobuhiro Nakamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo, 160-8582, Japan
| | - Takeshi Mizukami
- National Hospital Organization Kurihama Medical and Addiction Center, 5-3-1 Nobi, Yokosuka, Kanagawa, 239-0841, Japan
| | - Katsuya Maruyama
- National Hospital Organization Kurihama Medical and Addiction Center, 5-3-1 Nobi, Yokosuka, Kanagawa, 239-0841, Japan
| | - Tetsuji Yokoyama
- Department of Health Promotion, National Institute of Public Health, 2-3-6 Minami, Wako, Saitama, 351-0104, Japan
| |
Collapse
|
43
|
Won SB, Kwon YH. Maternal Consumption of Low-Isoflavone Soy Protein Isolate Confers the Increased Predisposition to Alcoholic Liver Injury in Adult Rat Offspring. Nutrients 2018. [PMID: 29534433 PMCID: PMC5872750 DOI: 10.3390/nu10030332] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Offspring of female rats fed either a casein (CAS) diet or a low-isoflavone soy protein isolate (SPI) diet were compared in an animal model of chronic ethanol consumption to investigate whether maternal diet regulates the adaptive responses of offspring to postnatal ethanol exposure and potentially affects the development of liver disease in later life. Female rats were fed either a CAS or an SPI diet before mating, and during pregnancy and lactation. Male offspring from the same litter were pair-fed either a control or ethanol diet for six weeks (CAS/CON, CAS/EtOH, SPI/CON, and SPI/EtOH groups). Serum aminotransferase activities and hepatic inflammatory indicators were higher in the SPI/EtOH group than in the CAS/EtOH group. Ethanol consumption increased serum homocysteine levels, hepatic S-adenosylmethionine:S-adenosylhomocysteine ratio, and hepatic endoplasmic reticulum stress only in offspring of SPI-fed female rats. Total and high-density lipoprotein (HDL) cholesterol levels and mRNA levels of hepatic genes involved in HDL cholesterol assembly were reduced in the SPI group in response to ethanol consumption. In conclusion, offspring of SPI-fed female rats were more susceptible to the later development of alcoholic liver disease than offspring of CAS-fed female rats. Furthermore, maternal SPI consumption altered one-carbon metabolism and cholesterol metabolism of offspring fed an ethanol diet.
Collapse
Affiliation(s)
- Sae Bom Won
- Department of Food and Nutrition, Seoul National University, Seoul 08826, Korea.
- Research Institute of Human Ecology, Seoul National University, Seoul 08826, Korea.
| | - Young Hye Kwon
- Department of Food and Nutrition, Seoul National University, Seoul 08826, Korea.
- Research Institute of Human Ecology, Seoul National University, Seoul 08826, Korea.
| |
Collapse
|
44
|
Li X, Zhang Y, Jin Q, Xia KL, Jiang M, Cui BW, Wu YL, Song SZ, Lian LH, Nan JX. Liver kinase B1/AMP-activated protein kinase-mediated regulation by gentiopicroside ameliorates P2X7 receptor-dependent alcoholic hepatosteatosis. Br J Pharmacol 2018; 175:1451-1470. [PMID: 29338075 DOI: 10.1111/bph.14145] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 12/19/2017] [Accepted: 12/22/2017] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND AND PURPOSE Regulating P2X7 receptor-mediated activation of NLRP3 inflammasomes could be a therapeutic strategy to treat alcoholic hepatosteatosis. We investigated whether this process was modulated by gentiopicroside, the main active secoiridoid glycoside from Gentiana manshurica Kitagawa. EXPERIMENTAL APPROACH In vivo models of acute and chronic alcoholic hepatosteatosis were established by intragastrically administered ethanol or using chronic plus binge ethanol feeding of Lieber-DeCarli liquid diet to male C57BL/6 mice. In vitro, HepG2 cells were treated with ethanol. RAW 264.7 macrophages and murine bone marrow-derived macrophages (BMDMs) were stimulated with LPS and ATP. KEY RESULTS In both the acute and chronic alcohol-induced mouse hepatosteatosis models, gentiopicroside decreased serum aminotransferases and triglyceride accumulation. Up-regulated SREBP1, down-regulated PPARα and phosphorylated acetyl-CoA carboxylase caused by acute and chronic alcohol feeding were modulated by gentiopicroside, through the elevation of LKB1 and AMPK. Suppression of P2X7 receptor-NLRP3 activation by gentiopicroside inhibited IL-1β production. In ethanol-exposed HepG2 cells, gentiopicroside reduced lipogenesis and promoted lipid oxidation via activation of P2X7 receptor-NLRP3 inflammasomes. Genetic or pharmacological blockade of P2X7 receptors enhanced AMPK activity and reduced SREBP1 expression in ethanol-treated HepG2 cells. Gentiopicroside down-regulated P2X7 receptor-mediated inflammatory responses in LPS/ATP-stimulated RAW 264.7 macrophages and BMDMs. IL-1β from macrophages accelerated lipid accumulation in hepatocytes. Depleting macrophages by clodronate liposomes ameliorated alcoholic hepatosteatosis, and it was further alleviated by gentiopicroside. CONCLUSIONS AND IMPLICATIONS Activation of LKB1/AMPK signalling by gentiopicroside was mediated by the P2X7 receptor-NLRP3 inflammasome, suggesting the therapeutic value of blocking P2X7 receptors in the treatment of alcoholic hepatosteatosis.
Collapse
Affiliation(s)
- Xia Li
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Yu Zhang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Quan Jin
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Kai-Li Xia
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Min Jiang
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Ben-Wen Cui
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Yan-Ling Wu
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Shun-Zong Song
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Li-Hua Lian
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China
| | - Ji-Xing Nan
- Key Laboratory for Natural Resource of Changbai Mountain and Functional Molecules, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin Province, 133002, China.,Clinical Research Center, Yanbian University Hospital, Yanji, Jilin Province, 133002, China
| |
Collapse
|
45
|
Nepal G, Tuladhar ET, Acharya K, Bhattarai A, Sharma VK, Raut M, Yadav BK. Dyslipidemia and Associated Cardiovascular Risk Factors among Young Nepalese University Students. Cureus 2018; 10:e2089. [PMID: 29564194 PMCID: PMC5860887 DOI: 10.7759/cureus.2089] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Introduction Cardiovascular diseases are one of the main causes of morbidity and mortality worldwide, atherosclerosis being the principal underlying cause of cardiovascular diseases. Early detection of dyslipidemia and long-term prevention of atherosclerosis by controlling risk factors should begin in young age. The purpose of this study was to assess dyslipidemia and associated cardiovascular risk factors among university students of Nepal. Methods A sample of 280 students aged 17–24 years, were selected randomly from Institute of Medicine, Tribhuvan University. An interview-based questionnaire was designed and information was collected on the basis of age, gender, smoking and alcohol consumption. Body mass index and waist-to-hip ratio of all participants were calculated. Fasting blood samples were collected from all participants and assayed for fasting serum total cholesterol, triglyceride, high-density lipoprotein and low-density lipoprotein. Results Overall, dyslipidemia was seen as hypercholesterolemia in 31 (11.1%), elevated low-density lipoprotein in 34 (12.1%), low high-density lipoprotein in 95 (33.9%) and hypertriglyceridemia in 39 (13.9%). Current smoking and binge drinking were significantly associated with hypercholesterolemia. Gender, binge drinking, and current smoking were found to be significantly associated with elevated low-density lipoprotein. All factors were significantly associated with hypertriglyceridemia. There was no statistically significant association between risk factors and the low high-density lipoprotein. Body mass index and waist-to-hip ratio were significantly higher in subjects with hypercholesterolemia, hypertriglyceridemia, and elevated low-density lipoprotein level. Conclusions The prevalence of dyslipidemia was high in young Nepalese university students. Screening the levels of lipids in youth, especially those at risk, and accurate follow-up of those with dyslipidemia can be done to reduce morbidity and mortality.
Collapse
Affiliation(s)
- Gaurav Nepal
- Maharajgunj Medical Campus, Tribhuvan University Institute of Medicine
| | - Eans T Tuladhar
- Maharajgunj Medical Campus, Tribhuvan University Institute of Medicine
| | - Keshav Acharya
- Maharajgunj Medical Campus, Tribhuvan University Institute of Medicine
| | - Aseem Bhattarai
- Maharajgunj Medical Campus, Tribhuvan University Institute of Medicine
| | - Vijay K Sharma
- Maharajgunj Medical Campus, Tribhuvan University Institute of Medicine
| | - Mithileshwor Raut
- Maharajgunj Medical Campus, Tribhuvan University Institute of Medicine
| | - Binod K Yadav
- Maharajgunj Medical Campus, Tribhuvan University Institute of Medicine
| |
Collapse
|
46
|
Pan JH, Lim Y, Kim JH, Heo W, Lee KY, Shin HJ, Kim JK, Lee JH, Kim YJ. Root bark of Ulmus davidiana var. japonica restrains acute alcohol-induced hepatic steatosis onset in mice by inhibiting ROS accumulation. PLoS One 2017; 12:e0188381. [PMID: 29176803 PMCID: PMC5703503 DOI: 10.1371/journal.pone.0188381] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 10/10/2017] [Indexed: 12/11/2022] Open
Abstract
Alcohol-induced hepatic steatosis and inflammation are key drivers of alcohol-induced liver injury, mainly caused by oxidative stress. The roots bark of Ulmus davidiana var. japonica is well known for its substantial antioxidative and antitumorigenic potency. In this study, we examined whether this plant can ameliorate alcohol-induced liver injuries characterized by hepatic steatosis and inflammation through its antioxidative activity. C57BL/6J mice were treated with the root bark extract of Ulmus davidiana var. japonica (RUE; 100 mg of extract/kg bodyweight; oral gavage) and alcohol (1 g/kg of bodyweight; oral gavage) for 5 days. Markers of acute alcohol-induced hepatic steatosis were determined and putative molecular mechanisms responsible for the protection of RUE were investigated. RUE noticeably protected against alcohol-induced hepatic steatosis and inflammation. Reactive oxygen species (ROS), over-produced by alcohol, negatively orchestrated various signaling pathways involved in the lipid metabolism and inflammation. These pathways were restored through the ROS scavenging activity of RUE in the liver. In particular, the expression of lipogenic genes (e.g., SREBP-1, ACC, and FAS) and inflammatory cytokines (e.g., IL-1β, and NF-κB p65) significantly decreased with RUE treatment. Conversely, the expression of fatty acid oxidation-related genes (e.g., SIRT1, AMPKα, and PGC1α) were increased in mice treated with RUE. Thus, the results indicate that RUE counteracts and thus attenuates alcoholic hepatic steatosis onset in mice, possibly by suppressing ROS-mediated steatosis and inflammation.
Collapse
Affiliation(s)
- Jeong Hoon Pan
- Department of Food and Biotechnology, Korea University, Sejong, Republic of Korea
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, Arkansas, United States of America
| | - Yejin Lim
- Department of Food and Biotechnology, Korea University, Sejong, Republic of Korea
| | - Jun Ho Kim
- Department of Food and Biotechnology, Korea University, Sejong, Republic of Korea
| | - Wan Heo
- Department of Food and Biotechnology, Korea University, Sejong, Republic of Korea
| | - Ki Yong Lee
- College of Pharmacy, Korea University, Sejong, Republic of Korea
| | - Hye Ji Shin
- College of Pharmacy, Korea University, Sejong, Republic of Korea
| | - Jae Kyeom Kim
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, Arkansas, United States of America
- * E-mail: (YJK); (JHL); (JKK)
| | - Jin Hyup Lee
- Department of Food and Biotechnology, Korea University, Sejong, Republic of Korea
- * E-mail: (YJK); (JHL); (JKK)
| | - Young Jun Kim
- Department of Food and Biotechnology, Korea University, Sejong, Republic of Korea
- * E-mail: (YJK); (JHL); (JKK)
| |
Collapse
|
47
|
Laguzzi F, Risérus U, Marklund M, Vikström M, Sjögren P, Gigante B, Alsharari ZD, Hellénius ML, Cederholm T, Frumento P, de Faire U, Leander K. Circulating fatty acids in relation to alcohol consumption: Cross-sectional results from a cohort of 60-year-old men and women. Clin Nutr 2017; 37:2001-2010. [PMID: 29032841 DOI: 10.1016/j.clnu.2017.09.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/01/2017] [Accepted: 09/09/2017] [Indexed: 01/08/2023]
Abstract
BACKGROUND & AIMS Alcohol consumption is considered to affect circulating fatty acids (FAs) but knowledge about specific associations is limited. We aimed to assess the relation between alcohol consumption and serum FAs in 60-year-old Swedish men and women. METHODS In a random sample of 1917 men and 2058 women residing in Stockholm county, cross-sectional associations between different categories of alcohol consumption and FAs were assessed using linear regression; β1 coefficients with 95% confidence interval (CI) were calculated. Self-reported alcohol consumption was categorized as none, low (≤9.9 g/day) (reference), moderate (10-29.9 g/day) and high (≥30 g/day). Moderate alcohol consumption was further subdivided into consumption of beer, wine, liquor and their combinations. Thirteen serum cholesterol ester FAs were measured by gas chromatography and individual FAs were expressed as percentage of total FAs. RESULTS Increasing alcohol consumption was associated to linear increase of saturated myristic acid, monounsaturated FAs and n-6 polyunsaturated (PUFA) arachidonic acid, whereas linear decrease was noted for saturated pentadecanoic acid and for n-6 PUFA linoleic acid. With non-linear associations, increasing alcohol consumption also associated to decreased saturated stearic acid, n-6 PUFA dihomo-gamma-linolenic acid, and n-3 PUFA docosahexaenoic acid and increased saturated palmitic acid, n-6 PUFA gamma-linolenic acid and n-3 PUFA eicosapentaenoic acid. Among types of beverages, wine consumption was associated with n-6 PUFA arachidonic acid (β1 0.59; 95% CI: 0.30;0.88) and the n-3 PUFAs eicosapentaenoic acid (β1 0.54; 95% CI: 0.30;0.78), and docosahexaenoic acid (β1 0.06; 95% CI: 0.00;0.12). CONCLUSIONS These findings may give important basis for further investigations to better understand biological mechanisms behind the dose-dependent associations between alcohol consumption and health outcomes observed in many previous studies.
Collapse
Affiliation(s)
- F Laguzzi
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, Box 210, 171 77 Stockholm, Sweden.
| | - U Risérus
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 609, 751 25 Uppsala, Sweden
| | - M Marklund
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 609, 751 25 Uppsala, Sweden
| | - M Vikström
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, Box 210, 171 77 Stockholm, Sweden
| | - P Sjögren
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 609, 751 25 Uppsala, Sweden
| | - B Gigante
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, Box 210, 171 77 Stockholm, Sweden; Division of Cardiovascular Medicine, Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital University, 182 88 Stockholm, Sweden
| | - Z D Alsharari
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 609, 751 25 Uppsala, Sweden
| | - M-L Hellénius
- Cardiology Unit, Department of Medicine, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - T Cederholm
- Department of Public Health and Caring Sciences, Clinical Nutrition and Metabolism, Uppsala University, Box 609, 751 25 Uppsala, Sweden
| | - P Frumento
- Unit of Biostatistics, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, Box 210, 171 77 Stockholm, Sweden
| | - U de Faire
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, Box 210, 171 77 Stockholm, Sweden; Cardiology Unit, Department of Medicine, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - K Leander
- Unit of Cardiovascular Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Nobels väg 13, Box 210, 171 77 Stockholm, Sweden
| |
Collapse
|
48
|
Severe hypertriglyceridemia in Japan: Differences in causes and therapeutic responses. J Clin Lipidol 2017; 11:1383-1392. [PMID: 28958672 DOI: 10.1016/j.jacl.2017.08.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 07/27/2017] [Accepted: 08/10/2017] [Indexed: 01/01/2023]
Abstract
BACKGROUND Severe hypertriglyceridemia (>1000 mg/dL) has a variety of causes and frequently leads to life-threating acute pancreatitis. However, the origins of this disorder are unclear for many patients. OBJECTIVE We aimed to characterize the causes of and responses to therapy in rare cases of severe hypertriglyceridemia in a group of Japanese patients. METHODS We enrolled 121 patients from a series of case studies that spanned 30 years. Subjects were divided into 3 groups: (1) primary (genetic causes); (2) secondary (acquired); and (3) disorders of uncertain causes. In the last group, we focused on 3 possible risks factors for hypertriglyceridemia: obesity, diabetes mellitus, and heavy alcohol intake. RESULTS Group A (n = 20) included 13 patients with familial lipoprotein lipase deficiency, 3 patients with apolipoprotein CII deficiency, and other genetic disorders in the rest of the group. Group B patients (n = 15) had various metabolic and endocrine diseases. In Group C (uncertain causes; n = 86), there was conspicuous gender imbalance (79 males, 3 females) and most male subjects were heavy alcohol drinkers. In addition, 18 of 105 adult patients (17%) had histories of acute pancreatitis. CONCLUSION The cause of severe hypertriglyceridemia is uncertain in many patients. In primary genetic forms of severe hypertriglyceridemia, genetic diversity between populations is unknown. In the acquired forms, we found fewer cases of estrogen-induced hypertriglyceridemia than in Western countries. In our clinical experience, the cause of most hypertriglyceridemia is uncertain. Our work suggests that genetic factors for plasma triglyceride sensitivity to alcohol should be explored.
Collapse
|
49
|
Hepatic overproduction of 13-HODE due to ALOX15 upregulation contributes to alcohol-induced liver injury in mice. Sci Rep 2017; 7:8976. [PMID: 28827690 PMCID: PMC5567196 DOI: 10.1038/s41598-017-02759-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Accepted: 04/18/2017] [Indexed: 01/12/2023] Open
Abstract
Chronic alcohol feeding causes lipid accumulation and apoptosis in the liver. This study investigated the role of bioactive lipid metabolites in alcohol-induced liver damage and tested the potential of targeting arachidonate 15-lipoxygenase (ALOX15) in treating alcoholic liver disease (ALD). Results showed that chronic alcohol exposure induced hepatocyte apoptosis in association with increased hepatic 13-HODE. Exposure of 13-HODE to Hepa-1c1c7 cells induced oxidative stress, ER stress and apoptosis. 13-HODE also perturbed proteins related to lipid metabolism. HODE-generating ALOX15 was up-regulated by chronic alcohol exposure. Linoleic acid, but not ethanol or acetaldehyde, induced ALOX15 expression in Hepa-1c1c7 cells. ALOX15 knockout prevented alcohol-induced liver damage via attenuation of oxidative stress, ER stress, lipid metabolic disorder, and cell death signaling. ALOX15 inhibitor (PD146176) treatment also significantly alleviated alcohol-induced oxidative stress, lipid accumulation and liver damage. These results demonstrated that activation of ALOX15/13-HODE circuit critically mediates the pathogenesis of ALD. This study suggests that ALOX15 is a potential molecular target for treatment of ALD.
Collapse
|
50
|
Fibroblast growth factor 21 (FGF21) is robustly induced by ethanol and has a protective role in ethanol associated liver injury. Mol Metab 2017; 6:1395-1406. [PMID: 29107287 PMCID: PMC5681240 DOI: 10.1016/j.molmet.2017.08.004] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 08/09/2017] [Accepted: 08/15/2017] [Indexed: 12/13/2022] Open
Abstract
Objective Excess ethanol consumption has serious pathologic consequences. In humans, repeated episodes of binge drinking can lead to liver damage and have adverse effects on other organs such as pancreas and brain. Long term chronic consumption of ethanol can also result in progressive alcoholic liver disease and cirrhosis. Fibroblast growth factor 21 (FGF21) is a metabolic regulator with multiple physiologic functions. FGF21 is a novel biomarker for non-alcoholic fatty liver disease (NAFLD) in humans and limits hepatotoxicity in mice. Therefore, we explored the possibility that FGF21 plays a role in response to ethanol consumption in both humans and mice. Methods We used a binge drinking paradigm in humans to examine the effect of acute ethanol consumption on circulating FGF21. We adapted this paradigm to evaluate the acute response to ethanol in mice. We then examined the role of FGF21 on liver pathology in two models of chronic ethanol consumption in both wild type (WT) mice and mice lacking FGF21 (FGF21-KO). Results Acute ethanol consumption resulted in a robust induction of serum FGF21 after 6 h in both humans and mice. Serum ethanol peaked at 1 h in both species and was cleared by 6 h. Ethanol clearance was the same in WT and FGF21-KO mice, indicating that FGF21 does not play a major role in ethanol metabolism in a binge paradigm. When FGF21-KO mice were fed the Lieber–DeCarli diet, a high fat diet supplemented with ethanol, a higher mortality was observed compared to WT mice after 16 days on the diet. When FGF21-KO mice consumed 30% ethanol in drinking water, along with a normal chow diet, there was no mortality observed even after 16 weeks, but the FGF21-KO mice had significant liver pathology compared to WT mice. Conclusions Acute or binge ethanol consumption significantly increases circulating FGF21 levels in both humans and mice. However, FGF21 does not play a role in acute ethanol clearance. In contrast, chronic ethanol consumption in the absence of FGF21 is associated with significant liver pathology alone or in combination with excess mortality, depending on the type of diet consumed with ethanol. This suggests that FGF21 protects against long term ethanol induced hepatic damage and may attenuate progression of alcoholic liver disease. Further study is required to assess the therapeutic potential of FGF21 in the treatment of alcoholic liver disease. Binge ethanol consumption robustly increases circulating FGF21 levels in both humans and mice. FGF21 does not play a role in ethanol clearance which is the same in WT and FGF21-KO mice. In mice lacking FGF21, in two models of ethanol consumption there was either excess mortality or excess hepatic damage and inflammation. These data suggest the FGF21 may have potential therapeutic value for alcoholic liver disease.
Collapse
|