1
|
Compagnoni C, Capelli R, Zelli V, Corrente A, Vecchiotti D, Flati I, Di Vito Nolfi M, Angelucci A, Alesse E, Zazzeroni F, Tessitore A. MiR-182-5p Is Upregulated in Hepatic Tissues from a Diet-Induced NAFLD/NASH/HCC C57BL/6J Mouse Model and Modulates Cyld and Foxo1 Expression. Int J Mol Sci 2023; 24:ijms24119239. [PMID: 37298191 DOI: 10.3390/ijms24119239] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/15/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is considered a relevant liver chronic disease. Variable percentages of NAFLD cases progress from steatosis to steatohepatitis (NASH), cirrhosis and, eventually, hepatocellular carcinoma (HCC). In this study, we aimed to deepen our understanding of expression levels and functional relationships between miR-182-5p and Cyld-Foxo1 in hepatic tissues from C57BL/6J mouse models of diet-induced NAFL/NASH/HCC progression. A miR-182-5p increase was detected early in livers as NAFLD damage progressed, and in tumors compared to peritumor normal tissues. An in vitro assay on HepG2 cells confirmed Cyld and Foxo1, both tumor-suppressor, as miR-182-5p target genes. According to miR-182-5p expression, decreased protein levels were observed in tumors compared to peritumor tissues. Analysis of miR-182-5p, Cyld and Foxo1 expression levels, based on datasets from human HCC samples, showed results consistent with those from our mouse models, and also highlighted the ability of miR-182-5p to distinguish between normal and tumor tissues (AUC 0.83). Overall, this study shows, for the first time, miR-182-5p overexpression and Cyld-Foxo1 downregulation in hepatic tissues and tumors from a diet-induced NAFLD/HCC mouse model. These data were confirmed by the analysis of datasets from human HCC samples, highlighting miR-182-5p diagnostic accuracy and demonstrating the need for further studies to assess its potential role as a biomarker or therapeutic target.
Collapse
Affiliation(s)
- Chiara Compagnoni
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Roberta Capelli
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Veronica Zelli
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
- Center for Molecular Diagnostics and Advanced Therapies, University of L'Aquila, Via Petrini, 67100 L'Aquila, Italy
| | - Alessandra Corrente
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Davide Vecchiotti
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Irene Flati
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Mauro Di Vito Nolfi
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Adriano Angelucci
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Edoardo Alesse
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Francesca Zazzeroni
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
| | - Alessandra Tessitore
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, 67100 L'Aquila, Italy
- Center for Molecular Diagnostics and Advanced Therapies, University of L'Aquila, Via Petrini, 67100 L'Aquila, Italy
| |
Collapse
|
2
|
Errafii K, Khalifa O, Al-Akl NS, Arredouani A. Comparative Transcriptome Analysis Reveals That Exendin-4 Improves Steatosis in HepG2 Cells by Modulating Signaling Pathways Related to Lipid Metabolism. Biomedicines 2022; 10:biomedicines10051020. [PMID: 35625757 PMCID: PMC9138370 DOI: 10.3390/biomedicines10051020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Revised: 04/09/2022] [Accepted: 04/11/2022] [Indexed: 01/27/2023] Open
Abstract
No therapy exists for non-alcoholic fatty liver disease (NAFLD). However, glucagon-like peptide receptor agonists (GLP-1RAs) showed a beneficial effect on NAFLD, although the underpinning mechanisms remain unclear due to their pleiotropic effects. We examined the implicated signaling pathways using comparative transcriptomics in a cell model of steatosis to overcome pleiotropy. We treated steatotic HepG2 cells with the GLP-1RA Exendin-4 (Ex-4). We compared the transcriptome profiles of untreated steatotic, and Ex-4-treated steatotic cells, and used Ingenuity Pathway Analysis (IPA) to identify the signaling pathways and associated genes involved in the protective effect of Ex-4. Ex-4 treatment significantly reduces steatosis. RNA-seq analysis revealed 209 differentially expressed genes (DEGs) between steatotic and untreated cells, with farnesoid X receptor/retinoid X receptor (FXR/RXR) (p = 8.9 × 10−7) activation being the top regulated canonical pathway identified by IPA. Furthermore, 1644 DEGs were identified between steatotic cells and Ex-4-treated cells, with liver X receptor/retinoid X receptor (LXR/RXR) (p = 2.02 × 10−7) and FXR/RXR (p = 3.28 × 10−7) activation being the two top canonical pathways. The top molecular and cellular functions between untreated and steatotic cells were lipid metabolism, molecular transport, and small molecular biochemistry, while organismal injury and abnormalities, endocrine system disorders, and gastrointestinal disease were the top three molecular and cellular functions between Ex-4-treated and steatotic cells. Genes overlapping steatotic cells and Ex-4-treated cells were associated with several lipid metabolism processes. Unique transcriptomic differences exist between steatotic cells and Ex-4-treated steatotic cells, providing an important resource for understanding the mechanisms that underpin the protective effect of GLP-1RAs on NAFLD and for the identification of novel therapeutic targets for NAFLD.
Collapse
Affiliation(s)
- Khaoula Errafii
- College of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 34110, Qatar;
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 34110, Qatar; (O.K.); (N.S.A.-A.)
- African Genome Center, Mohammed VI Polytechnic University (UM6P), Ben Guerir 43151, Morocco
| | - Olfa Khalifa
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 34110, Qatar; (O.K.); (N.S.A.-A.)
| | - Neyla S. Al-Akl
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 34110, Qatar; (O.K.); (N.S.A.-A.)
| | - Abdelilah Arredouani
- College of Health and Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 34110, Qatar;
- Diabetes Research Center, Qatar Biomedical Research Institute, Hamad Bin Khalifa University, Qatar Foundation, Doha P.O. Box 34110, Qatar; (O.K.); (N.S.A.-A.)
- Correspondence:
| |
Collapse
|
3
|
Wang L, Zhang K, Ding X, Wang Y, Bai H, Yang Q, Ben J, Zhang H, Li X, Chen Q, Zhu X. Fucoidan antagonizes diet-induced obesity and inflammation in mice. J Biomed Res 2020; 35:197-205. [PMID: 33495425 PMCID: PMC8193708 DOI: 10.7555/jbr.34.20200153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Obesity is an escalating global pandemic posing a serious threat to human health. The intervention therapy using weight-reducing drugs, accompanied by lifestyle modification, is a strategy for the treatment of obesity. In the present study, we explored the role of fucoidan, a seaweed compound, on high-fat diet (HFD)-induced obesity in mice. We found that fucoidan treatment significantly reduced the body fat and caused redistribution of visceral and subcutaneous fat in HFD-fed mice. Meanwhile, fucoidan treatment inhibited adipocyte hypertrophy and inflammation in adipose tissue. Collectively, these results suggest that fucoidan may be a promising treatment for obesity and obesity-induced complications.
Collapse
Affiliation(s)
- Lei Wang
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Kun Zhang
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Xin Ding
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Yan Wang
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Hui Bai
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Qing Yang
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Jingjing Ben
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Hanwen Zhang
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Xiaoyu Li
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Qi Chen
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Xudong Zhu
- Key Laboratory of Targeted Intervention of Cardiovascular Disease, CollaborativeInnovation Center for Cardiovascular Disease Translational Medicine, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| |
Collapse
|
4
|
Choi JH, Sohn W, Cho YK. The effect of moderate alcohol drinking in nonalcoholic fatty liver disease. Clin Mol Hepatol 2020; 26:662-669. [PMID: 32971586 PMCID: PMC7641550 DOI: 10.3350/cmh.2020.0163] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 08/24/2020] [Indexed: 12/18/2022] Open
Abstract
Nonalcoholic fatty liver disease (NAFLD) is defined by fat accumulation in liver that is not caused by excessive alcohol consumption. Safe limits of alcohol consumption in NAFLD are usually defined as alcohol consumption of less than 210 g per week for men and 140 g per week for women (30 g/day in men, 20 g/day in women) and alcohol consumption below safe limits is generally regarded as moderate alcohol consumption. Many studies have investigated the effects of moderate alcohol consumption on NAFLD patients. Some studies showed that moderate alcohol consumption prevented the progression of fibrosis in the liver, whereas other reports showed worsening of fibrosis in the liver based on serologic, radiologic and liver biopsy findings compared with effects on total abstainers. NAFLD is also thought to be a hepatic manifestation of metabolic syndrome, and when combined with excessive alcohol consumption results in the development of components of metabolic syndrome and systemic harmful effects. The effects of moderate alcohol consumption on NAFLD have yet to be established.
Collapse
Affiliation(s)
- Jong Hwa Choi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Won Sohn
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yong Kyun Cho
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| |
Collapse
|
5
|
Pillai SS, Lakhani HV, Zehra M, Wang J, Dilip A, Puri N, O’Hanlon K, Sodhi K. Predicting Nonalcoholic Fatty Liver Disease through a Panel of Plasma Biomarkers and MicroRNAs in Female West Virginia Population. Int J Mol Sci 2020; 21:ijms21186698. [PMID: 32933141 PMCID: PMC7554851 DOI: 10.3390/ijms21186698] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/04/2020] [Accepted: 09/11/2020] [Indexed: 02/07/2023] Open
Abstract
(1) Background: Nonalcoholic fatty liver disease (NAFLD) is primarily characterized by the presence of fatty liver, hepatic inflammation and fibrogenesis eventually leading to nonalcoholic steatohepatitis (NASH) or cirrhosis. Obesity and diabetes are common risk factors associated with the development and progression of NAFLD, with one of the highest prevalence of these diseased conditions in the West Virginia population. Currently, the diagnosis of NAFLD is limited to radiologic studies and biopsies, which are not cost-effective and highly invasive. Hence, this study aimed to develop a panel and assess the progressive levels of circulatory biomarkers and miRNA expression in patients at risk for progression to NASH to allow early intervention strategies. (2) Methods: In total, 62 female patients were enrolled and blood samples were collected after 8–10 h of fasting. Computed tomography was performed on abdomen/pelvis following IV contrast administration. The patients were divided into the following groups: Healthy subjects with normal BMI and normal fasting blood glucose (Control, n = 20), Obese with high BMI and normal fasting blood glucose (Obese, n = 20) and Obese with high fasting blood glucose (Obese + DM, n = 22). Based on findings from CT, another subset was created from Obese + DM group with patients who showed signs of fatty liver infiltration (Obese + DM(FI), n = 10). ELISA was performed for measurement of plasma biomarkers and RT-PCR was performed for circulating miRNA expression. (3) Results: Our results show significantly increased levels of plasma IL-6, Leptin and FABP-1, while significantly decreased level of adiponectin in Obese, Obese + DM and Obese + DM(FI) group, as compared to healthy controls. The level of CK-18 was significantly increased in Obese + DM(FI) group as compared to control. Subsequently, the expression of miR-122, miR-34a, miR-375, miR-16 and miR-21 was significantly increased in Obese + DM and Obese + DM(FI) group as compared to healthy control. Our results also show distinct correlation of IL-6, FABP-1 and adiponectin levels with the expression of miRNAs in relation to the extent of NAFLD progression. (4) Conclusion: Our results support the clinical application of these biomarkers and miRNAs in monitoring the progression of NAFLD, suggesting a more advanced diagnostic potential of this panel than conventional methods. This panel may provide an appropriate method for early prognosis and management of NAFLD and subsequent adverse hepatic pathophysiology, potentially reducing the disease burden on the West Virginia population.
Collapse
Affiliation(s)
- Sneha S. Pillai
- Departments of Surgery and Biomedical Sciences, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (S.S.P.); (H.V.L.); (M.Z.); (J.W.); (A.D.)
| | - Hari Vishal Lakhani
- Departments of Surgery and Biomedical Sciences, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (S.S.P.); (H.V.L.); (M.Z.); (J.W.); (A.D.)
| | - Mishghan Zehra
- Departments of Surgery and Biomedical Sciences, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (S.S.P.); (H.V.L.); (M.Z.); (J.W.); (A.D.)
| | - Jiayan Wang
- Departments of Surgery and Biomedical Sciences, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (S.S.P.); (H.V.L.); (M.Z.); (J.W.); (A.D.)
| | - Anum Dilip
- Departments of Surgery and Biomedical Sciences, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (S.S.P.); (H.V.L.); (M.Z.); (J.W.); (A.D.)
| | - Nitin Puri
- Departments of Biomedical Sciences and Medical Education, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA;
| | - Kathleen O’Hanlon
- Departments of Family Medicine, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA;
| | - Komal Sodhi
- Departments of Surgery and Biomedical Sciences, Marshall University Joan C. Edwards School of Medicine, Huntington, WV 25701, USA; (S.S.P.); (H.V.L.); (M.Z.); (J.W.); (A.D.)
- Correspondence: ; Tel.: +1-(304)-691-1704; Fax: +1-(914)-347-4956
| |
Collapse
|
6
|
Krishnasamy Y, Gooz M, Li L, Lemasters JJ, Zhong Z. Role of mitochondrial depolarization and disrupted mitochondrial homeostasis in non-alcoholic steatohepatitis and fibrosis in mice. INTERNATIONAL JOURNAL OF PHYSIOLOGY, PATHOPHYSIOLOGY AND PHARMACOLOGY 2019; 11:190-204. [PMID: 31777643 PMCID: PMC6872485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 09/10/2019] [Indexed: 06/10/2023]
Abstract
The pathogenesis of non-alcoholic steatohepatitis (NASH) is poorly understood. Here, relationships between mitochondrial depolarization (mtDepo) and mitochondrial homeostasis were studied in a mouse model of NASH. C57BL/6 mice were fed a Western diet (high fat, fructose and cholesterol) for 2 weeks, 2 months and 6 months, and livers were harvested for histology and biochemical analysis. Hepatic mtDepo was evaluated by intravital multiphoton microscopy. After Western diet feeding, mixed hepatic micro- and macrovesicular steatosis and leukocyte infiltration occurred at 2 weeks and continued to increase afterwards. ALT release, mild necrosis, apoptosis, and ballooning degeneration were present at 2 and 6 months. Smooth muscle α-actin expression increased at 2 weeks and longer, and increased collagen-I expression and mild fibrosis occurred at 6 months. After feeding Western diet for 2 weeks and longer, mtDepo appeared in 50-70% hepatocytes, indicating mitochondrial dysfunction at an early stage of NASH. mtDepo can initiate mitophagy, and mitophagic markers increased at 2 and 6 months. Concurrently autophagic processing became impaired. Oxidative phosphorylation proteins, mitochondrial biogenesis signals, and proteins associated with mitochondrial fission and fusion decreased after 2 months and longer of Western diet. Proinflammatory and profibrotic signaling (NLRP3 inflammasome activation, expression of IL-1, osteopontin and TGF-β1) also increased in association with mitochondrial stress/dysfunction after Western diet feeding. Taken together, we show that hepatic mtDepo occurs early in mice fed a Western diet, followed by increased mitophagic burden, suppressed mitochondrial biogenesis and dynamics, and mitochondrial depletion. These novel mitochondrial alterations in NASH most likely play an important role in promoting steatosis, inflammation, and progression to fibrosis.
Collapse
Affiliation(s)
- Yasodha Krishnasamy
- Department of Drug Discovery and Biomedical Sciences, Medical University of South CarolinaCharleston, SC 29425, USA
| | - Monika Gooz
- Department of Drug Discovery and Biomedical Sciences, Medical University of South CarolinaCharleston, SC 29425, USA
| | - Li Li
- Department of Drug Discovery and Biomedical Sciences, Medical University of South CarolinaCharleston, SC 29425, USA
| | - John J Lemasters
- Department of Drug Discovery and Biomedical Sciences, Medical University of South CarolinaCharleston, SC 29425, USA
- Department of Biochemistry and Molecular Biology, Medical University of South CarolinaCharleston, SC 29425, USA
| | - Zhi Zhong
- Department of Drug Discovery and Biomedical Sciences, Medical University of South CarolinaCharleston, SC 29425, USA
| |
Collapse
|
7
|
Antifibrotic Activity and In Ovo Toxicity Study of Liver-Targeted Curcumin-Gold Nanoparticle. Sci Pharm 2018; 86:scipharm86040041. [DOI: 10.3390/scipharm86040041] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/05/2018] [Accepted: 09/07/2018] [Indexed: 12/12/2022] Open
Abstract
Conjugation of curcumin and gold with green chemistry is an approach to improve the effectiveness of curcumin as anti-fibrosis. In this work, curcumin and gold were conjugated to deliver curcumin to the liver. Curcumin-gold nanoparticles (cAuNPs) were prepared by varying curcumin pH and concentration. The successful of cAuNPs formation were identified by using UV-visible and FTIR spectrophotometers. The particle size and morphology were analyzed using particle size analyzer and cryo-TEM respectively. In vitro antioxidant assay was performed to determine the curcumin activity after conjugation. Physical and chemical stabilities of cAuNPs were studied for one month at 5 °C, 25 °C, and 40 °C. Furthermore, the cAuNPs activity to modulate early marker of fibrosis was tested on NIH/3T3 cells. The optimum condition for cAuNPs synthesis was by using 1.5 mM curcumin at pH 9.3. As compared to free curcumin, cAuNPs showed higher antioxidant activity and maintained the nanosize after stored for one month. In line with the antioxidant activity, cAuNPs 0.25–1 μg/mL reduced the collagen production by NIH/3T3 cells. More importantly, cAuNPs did not demonstrate any effect on the development of chicken embryo. Taken together, the attachment of gold to curcumin in the form of cAuNPs is promising for curcumin targeting to treat hepatic fibrosis.
Collapse
|
8
|
Ok DP, Ko K, Bae JY. Exercise without dietary changes alleviates nonalcoholic fatty liver disease without weight loss benefits. Lipids Health Dis 2018; 17:207. [PMID: 30172252 PMCID: PMC6119590 DOI: 10.1186/s12944-018-0852-z] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 08/23/2018] [Indexed: 12/15/2022] Open
Abstract
Background This study aimed to analyze the effect of exercise and/or dietary change on improvement of non-alcoholic fatty liver disease (NAFLD) in chronic high-fat diet (HFD)-induced obese mice. Methods Forty male C57BL/6 (8 weeks old) mice were divided into normal diet (CO, n = 8) and high-fat diet (HF, n = 32) groups. The HF group was fed with 60% fat chow for 16 weeks to induce obesity. After the obesity induction period, the HF group was subdivided into HFD + sedentary (n = 8), HFD + training (HFT, n = 8), dietary change to normal-diet + sedentary (HFND, n = 8), and dietary change to normal-diet + training (HFNDT, n = 8) groups, and the mice in the training groups underwent treadmill training for 8 weeks, 5 times per week, 40 min per day. Results A 24-week HFD induced increase of cannabinoid-1 receptor (CB1), fatty acid synthase (FAS), and AMP-activated protein kinase (AMPK) protein expressions (p < 0.05) and decrease of p-AMPK and carnitine palmitoyltransferase1 (CPT1) protein expressions (P < 0.05), resulting in increased liver fat accumulation. Treatment of exercise with dietary change and dietary change alone decreased CB1 and AMPK protein expressions with increased p-AMPK and CPT1 protein expressions (P < 0.05), leading to decreased body weight and liver fat (P < 0.05). The CB1 and FAS protein expressions in the HFT group were still higher than those in the CO group (P < 0.05), but the p-AMPK and CPT1 protein expressions were higher than those in the HF group (P < 0.05). Moreover, improved glucose tolerance and decreased liver fat were confirmed, although treatment of exercise alone had no effect on weight loss compared to pre-exercise. Conclusions Even in the case of obesity induced by chronic HFD, exercise and/or dietary interventions have preventive and therapeutic effects on fat accumulation in the liver, resulting from upregulations of lipolytic factors. Therefore, the results of this study suggested that treatment of exercise alone without dietary change also leads to improvement of NAFLD and glucose tolerance without weight loss benefits.
Collapse
Affiliation(s)
- Duck-Pil Ok
- Laboratory of Exercise Biochemistry, Department of Physical Education, College of Arts and Physical Education, Dong-A University, 37 Nakdong-daero 550 beon-gil, Hadan-dong, Saha-gu, Busan, 604-714, Republic of Korea
| | - Kangeun Ko
- Laboratory of Exercise Biochemistry, Department of Physical Education, College of Arts and Physical Education, Dong-A University, 37 Nakdong-daero 550 beon-gil, Hadan-dong, Saha-gu, Busan, 604-714, Republic of Korea
| | - Ju Yong Bae
- Laboratory of Exercise Biochemistry, Department of Physical Education, College of Arts and Physical Education, Dong-A University, 37 Nakdong-daero 550 beon-gil, Hadan-dong, Saha-gu, Busan, 604-714, Republic of Korea.
| |
Collapse
|
9
|
Association Between Tumor Necrosis Factor-α and the Risk of Hepatic Events: A Median 3 Years Follow-Up Study. HEPATITIS MONTHLY 2018. [DOI: 10.5812/hepatmon.65537] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
|
10
|
Im AR, Yang WK, Park YC, Kim SH, Chae S. Hepatoprotective Effects of Insect Extracts in an Animal Model of Nonalcoholic Fatty Liver Disease. Nutrients 2018; 10:E735. [PMID: 29880728 PMCID: PMC6024666 DOI: 10.3390/nu10060735] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 06/04/2018] [Accepted: 06/05/2018] [Indexed: 12/17/2022] Open
Abstract
Insects represent the largest and most diverse group of organisms on earth and are potential food and drug resources. Recently, we have demonstrated that a Forsythia viridissima extract prevented free fatty acid-induced lipid accumulation in an in vitro cellular nonalcoholic fatty liver disease (NAFLD) model. In this study, we aimed to evaluate the hepatoprotective effects of extracts of the insects Protaetia brevitarsis seulensis Kolbe, 1886 (PB), Oxya chinensis sinuosa Mishchenko, 1951 (OC), and Gryllus bimaculatus De Geer, 1773 (GB) in a high-fat diet (HFD)-induced NAFLD animal model, as well as to elucidate the underlying mechanisms. The effects of the supplementation with PB, OC, and GB extracts were evaluated histopathologically and histochemically. PB, OC, and GB extract supplementation inhibited the HFD-induced increase in body weight and body fat mass and ameliorated other adverse changes, resulting in decreased liver function parameters, lower serum triglyceride and cholesterol levels, and increased serum adiponectin levels. The expression of hepatic genes involved in lipid droplet accumulation and in fatty acid uptake also decreased upon treatment of HFD-fed mice with the extracts. These results provide evidence of the protective effects of the PB, OC, and GB extracts against HFD-induced fatty liver disease in an animal model.
Collapse
Affiliation(s)
- A-Rang Im
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34053, Korea.
| | - Won-Kyung Yang
- Institute of Traditional Medicine and Bioscience, 62 Daehak-ro, Dong-gu, Daejeon University, Daejeon 34520, Korea.
| | - Yang-Chun Park
- Division of Respiratory Systems, Department of Internal Medicine, College of Korean Medicine, Daejeon University, 176 Daeduk-ro, Seo-gu, Daejeon 35235, Korea.
| | - Seung Hyung Kim
- Institute of Traditional Medicine and Bioscience, 62 Daehak-ro, Dong-gu, Daejeon University, Daejeon 34520, Korea.
| | - Sungwook Chae
- Herbal Medicine Research Division, Korea Institute of Oriental Medicine, 1672 Yuseong-daero, Yuseong-gu, Daejeon 34053, Korea.
- Korean Medicine Life Science, University of Science and Technology, 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea.
| |
Collapse
|
11
|
Leibowitz A, Bier A, Gilboa M, Peleg E, Barshack I, Grossman E. Saccharin Increases Fasting Blood Glucose but Not Liver Insulin Resistance in Comparison to a High Fructose-Fed Rat Model. Nutrients 2018; 10:E341. [PMID: 29534506 PMCID: PMC5872759 DOI: 10.3390/nu10030341] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/02/2018] [Accepted: 03/08/2018] [Indexed: 01/08/2023] Open
Abstract
Recent data indicate that artificial sweeteners (AS) may have deleterious effects on glucose metabolism. The purpose of this study was to compare the effects of AS and the effects of a high fructose diet (HFrD) on glucose metabolism and insulin resistance (IR) in Sprague-Dawley (SD) rats. SD rats were fed either regular chow, chow with saccharin (Sac) (0.1 mg/mL) placed in their water, or HFrD for seven weeks. Glucose, insulin, and triglycerides (Tg) levels were measured upon completion. A homeostatic model assessment (HOMA)-IR index was used to determine insulin resistance. The liver was stained to detect signs of a fatty liver. Hepatic mRNA expression of glucose metabolism regulation genes, Srepb-1c (sterol regulatory element binding protein) and ChREB (α & β) (carbohydrate response element binding protein), as well as other glycolytic and lipogenic genes including glucose-6-phosphatase (G6pc), were considered IR markers. Both HFrD and Sac significantly increased fasting blood glucose levels compare to the control (140 ± 5 and 137 ± 6 vs. 118 ± 3 mg/dL, respectively, p < 0.05). However, only HFrD increased insulin secretion (0.99 ± 0.12 vs. 0.7 ± 0.1 and 0.6 ± 0.1 ug/L), Tg levels (420 ± 43 vs. 152 ± 20 and 127 ± 13 mg/dL), and the HOMA-IR index (3.4 ± 0.4 vs. 2.3 ± 0.36 and 2.13 ± 0.3) (HFrD vs. control and sac, p < 0.05). Fatty liver changes were only observed in HFrD fed rats. The expression of ChREB β, Srepb-1c, and G6pc mRNA were only significantly elevated (between 2-10 times folds, p < 0.05) in HFrD fed rats. Sac may increase fasting blood glucose but has no effect on liver insulin resistance.
Collapse
Affiliation(s)
- Avshalom Leibowitz
- Internal Medicine D, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat-Gan 5265601, Israel.
- Hypertension Unit, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat-Gan 5265601, Israel.
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel.
| | - Ariel Bier
- Hypertension Unit, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat-Gan 5265601, Israel.
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel.
| | - Mayan Gilboa
- Internal Medicine D, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat-Gan 5265601, Israel.
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel.
| | - Edna Peleg
- Hypertension Unit, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat-Gan 5265601, Israel.
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel.
| | - Iris Barshack
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel.
- Institute of Pathology, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat-Gan 5265601, Israel.
| | - Ehud Grossman
- Internal Medicine D, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat-Gan 5265601, Israel.
- Hypertension Unit, The Chaim Sheba Medical Center, Tel-Hashomer, Ramat-Gan 5265601, Israel.
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 69978, Israel.
| |
Collapse
|
12
|
Chang M, Zhang T, Han X, Tang Q, Yanagita T, Xu J, Xue C, Wang Y. Comparative Analysis of EPA/DHA-PL Forage and Liposomes in Orotic Acid-Induced Nonalcoholic Fatty Liver Rats and Their Related Mechanisms. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:1408-1418. [PMID: 29345914 DOI: 10.1021/acs.jafc.7b05173] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Nonalcoholic fatty liver disease (NAFLD) has become one predictive factor of death from various illnesses. The present study was to comparatively investigate the effects of eicosapentaenoic acid-enriched and docosahexaenoic acid-enriched phospholipids forage (EPA-PL and DHA-PL) and liposomes (lipo-EPA and lipo-DHA) on NAFLD and demonstrate the possible protective mechanisms involved. The additive doses of EPA-PL and DHA-PL in all treatment groups were 1% of total diets, respectively. The results showed that Lipo-EPA could significantly improve hepatic function by down-regulating orotic acid-induced serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) levels by 55.6% and 34.2%, respectively (p < 0.01). Moreover, lipo-EPA exhibited excellent inhibition on the mRNA expression of SREBP-1c and FAS at the values of 0.454 ± 0.09 (p < 0.01) and 0.523 ± 0.08 (p < 0.01), respectively, thus ameliorating OA-induced NAFLD. Meanwhile, lipo-EPA could significantly suppress the SREBP-2 and HMGR levels (31.4% and 66.7%, p < 0.05, respectively). In addition, EPA-PL and lipo-DHA could also significantly suppress hepatic lipid accumulation mainly by enhancement of hepatic lipolysis and cholesterol efflux. Furthermore, DHA-PL played a certain role in inhibiting hepatic lipogenesis and accelerating cholesterol efflux. The results obtained in this work might contribute to the understanding of the biological activities of EPA/DHA-PL and liposomes and further investigation on its potential application values for food supplements.
Collapse
Affiliation(s)
- Mengru Chang
- College of Food Science and Engineering, Ocean University of China , No. 5 Yushan Road, Qingdao, Shandong Province266003, PR China
| | - Tiantian Zhang
- College of Food Science and Engineering, Ocean University of China , No. 5 Yushan Road, Qingdao, Shandong Province266003, PR China
| | - Xiuqing Han
- College of Food Science and Engineering, Ocean University of China , No. 5 Yushan Road, Qingdao, Shandong Province266003, PR China
| | - Qingjuan Tang
- College of Food Science and Engineering, Ocean University of China , No. 5 Yushan Road, Qingdao, Shandong Province266003, PR China
| | - Teruyoshi Yanagita
- Laboratory of Nutrition Biochemistry, Department of Applied Biochemistry and Food Science, Saga University , Saga 840-8502, Japan
| | - Jie Xu
- College of Food Science and Engineering, Ocean University of China , No. 5 Yushan Road, Qingdao, Shandong Province266003, PR China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China , No. 5 Yushan Road, Qingdao, Shandong Province266003, PR China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao, Shandong Province PR China
| | - Yuming Wang
- College of Food Science and Engineering, Ocean University of China , No. 5 Yushan Road, Qingdao, Shandong Province266003, PR China
- Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology , Qingdao, Shandong Province PR China
| |
Collapse
|
13
|
Cytokines Genotype-Phenotype Correlation in Nonalcoholic Steatohepatitis. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:4297206. [PMID: 28852433 PMCID: PMC5568617 DOI: 10.1155/2017/4297206] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/09/2017] [Indexed: 12/17/2022]
Abstract
NASH consists in lipid accumulation in hepatocytes that trigger oxidative stress, secretion of proinflammatory cytokines leading to steatohepatitis (NASH). The study aimed to investigate the levels of proinflammatory (TNF-α and IL-6) along with anti-inflammatory cytokine IL-10 in patients with NASH and to correlate the cytokines' level with their polymorphism. Sixty-six patients with NASH and 30 healthy volunteers were included in the study. The plasmatic level of IL-6, IL-10, and TNF-α were determined by ELISA. IL-10 -1082 G/A, IL-6 -174 G/C, and TNF-α -308 G/A polymorphisms were determined using the PCR-RFLP technique. IL-6, TNF-α, and CRP levels were significantly higher in patients with NASH. There was a positive correlation between proinflammatory cytokines and a negative correlation between IL-10 and proinflammatory markers. The G allele and GG genotype of IL-6 -174 G/C polymorphism were more frequently noticed in NASH patients. Regarding IL-10 -1082 G/A polymorphism, the AA genotype was correlated with NASH and with a low plasmatic level of IL-10. The A allele in position 308 of the TNF-α gene was associated with high level of cytokine. In conclusion, there was an imbalance between pro- and anti-inflammatory cytokines in NASH patients. IL-10 -1082 G/A and TNF-α -308 G/A genotypes were correlated with the plasmatic levels of cytokines.
Collapse
|