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Tao J, Diao L, Chen F, Shen A, Wang S, Jin H, Cai D, Hu Y. pH-Sensitive Nanoparticles Codelivering Docetaxel and Dihydroartemisinin Effectively Treat Breast Cancer by Enhancing Reactive Oxidative Species-Mediated Mitochondrial Apoptosis. Mol Pharm 2020; 18:74-86. [PMID: 33084332 DOI: 10.1021/acs.molpharmaceut.0c00432] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Tumor growth and metastasis are the major causes of high mortality in breast cancer. We previously constructed pH-sensitive nanoparticles (D/D NPs) for the codelivery of docetaxel (DTX) and dihydroartemisinin (DHA) and demonstrated that D/D NPs showed anticancer activity in breast cancer cells in vitro. The present study further investigated the therapeutic effect of D/D NPs on orthotopic breast cancer in vivo and examined the antitumor mechanism of D/D NPs. D/D NPs significantly increased the apoptosis of 4T1 cells with a synergistic effect of DTX and DHA. D/D NPs increased reactive oxygen species, reduced mitochondrial membrane potential, increased the expression of p53, and induced cytochrome c release into the cytoplasm to activate caspase-3. In an orthotopic metastatic breast cancer mouse model derived from 4T1 cells, D/D NPs inhibited tumor growth and prevented lung metastasis due to the synergistic effect of DTX and DHA. No distinct changes were observed in the histology of major organs. These results indicate that pH-sensitive D/D NP-based combination therapy may be a promising strategy for the treatment of metastatic breast cancers via the ROS-mediated mitochondrial apoptosis pathway.
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Affiliation(s)
- Jin Tao
- Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100, China.,School of Pharmacy, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Lu Diao
- Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100, China.,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Fangcheng Chen
- Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100, China
| | - Ao Shen
- The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Shutian Wang
- Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100, China
| | - Hongyan Jin
- Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100, China
| | - Danwei Cai
- Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100, China
| | - Ying Hu
- Zhejiang Pharmaceutical College, Ningbo, Zhejiang 315100, China.,School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
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Chiang S, Huang MLH, Richardson DR. Treatment of dilated cardiomyopathy in a mouse model of Friedreich's ataxia using N-acetylcysteine and identification of alterations in microRNA expression that could be involved in its pathogenesis. Pharmacol Res 2020; 159:104994. [PMID: 32534099 DOI: 10.1016/j.phrs.2020.104994] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/01/2020] [Accepted: 06/01/2020] [Indexed: 01/01/2023]
Abstract
Deficient expression of the mitochondrial protein, frataxin, leads to a deadly cardiomyopathy. Our laboratory reported the master regulator of oxidative stress, nuclear factor erythroid 2-related factor-2 (Nrf2), demonstrates marked down-regulation after frataxin deletion in the heart. This was due, in part, to a pronounced increase in Keap1. To assess if this can be therapeutically targeted, cells were incubated with N-acetylcysteine (NAC), or buthionine sulfoximine (BSO), which increases or decreases glutathione (GSH), respectively, or the NRF2-inducer, sulforaphane (SFN). While SFN significantly (p < 0.05) induced NRF2, KEAP1 and BACH1, NAC attenuated SFN-induced NRF2, KEAP1 and BACH1. The down-regulation of KEAP1 by NAC was of interest, as Keap1 is markedly increased in the MCK conditional frataxin knockout (MCK KO) mouse model and this could lead to the decreased Nrf2 levels. Considering this, MCK KO mice were treated with i.p. NAC (500- or 1500-mg/kg, 5 days/week for 5-weeks) and demonstrated slightly less (p > 0.05) body weight loss versus the vehicle-treated KO. However, NAC did not rescue the cardiomyopathy. To additionally examine the dys-regulation of Nrf2 upon frataxin deletion, studies assessed the role of microRNA (miRNA) in this process. In MCK KO mice, miR-144 was up-regulated, which down-regulates Nrf2. Furthermore, miRNA screening in MCK KO mice demonstrated 23 miRNAs from 756 screened were significantly (p < 0.05) altered in KOs versus WT littermates. Of these, miR-21*, miR-34c*, and miR-200c, demonstrated marked alterations, with functional clustering analysis showing they regulate genes linked to cardiac hypertrophy, cardiomyopathy, and oxidative stress, respectively.
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MESH Headings
- Acetylcysteine/pharmacology
- Animals
- Basic-Leucine Zipper Transcription Factors/metabolism
- Cardiomyopathy, Dilated/drug therapy
- Cardiomyopathy, Dilated/etiology
- Cardiomyopathy, Dilated/genetics
- Cardiomyopathy, Dilated/metabolism
- Cell Line, Tumor
- Disease Models, Animal
- Friedreich Ataxia/complications
- Friedreich Ataxia/genetics
- Gene Expression Regulation
- Humans
- Iron-Binding Proteins/genetics
- Iron-Binding Proteins/metabolism
- Isothiocyanates/pharmacology
- Kelch-Like ECH-Associated Protein 1/metabolism
- Mice, Knockout
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Myocytes, Cardiac/pathology
- NF-E2-Related Factor 2/genetics
- NF-E2-Related Factor 2/metabolism
- Sulfoxides/pharmacology
- Frataxin
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Affiliation(s)
- S Chiang
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Medical Foundation Building (K25), University of Sydney, Sydney, New South Wales, 2006 Australia
| | - M L H Huang
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Medical Foundation Building (K25), University of Sydney, Sydney, New South Wales, 2006 Australia
| | - D R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, Medical Foundation Building (K25), University of Sydney, Sydney, New South Wales, 2006 Australia; Centre for Cancer Cell Biology, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, 4111, Queensland, Australia.
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Fernandes AMM, Vilela PGF, Valera MC, Bolay C, Hiller KA, Schweikl H, Schmalz G. Effect of bleaching agent extracts on murine macrophages. Clin Oral Investig 2017; 22:1771-1781. [PMID: 29196947 DOI: 10.1007/s00784-017-2273-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 11/07/2017] [Indexed: 01/14/2023]
Abstract
OBJECTIVES The aim of this study was to evaluate the cytotoxicity and the influence of bleaching agents on immunologically cell surface antigens of murine macrophages in vitro. MATERIALS AND METHODS RAW 264.7 cells were exposed to bleaching gel extracts (40% hydrogen peroxide or 20% carbamide peroxide) and different H2O2 concentrations after 1 and 24-h exposure periods and 1-h exposure and 23-h recovery. Tests were performed with and without N-acetyl cysteine (NAC) and buthionine sulfoximine (BSO). Cell viability was determined by MTT assay. The expression of surface markers CD14, CD40, and CD54 with and without LPS stimulation was detected by flow cytometry, while the production of TNF-α was measured by ELISA. Statistical analysis was performed using the Mann-Whitney U test (α = 0.05). RESULTS Extracts of bleaching agents were cytotoxic for cells after a 1-h exposure; cells could not recover after 24 h. This effect can be mitigated by the antioxidant NAC and increased by BSO, an inhibitor of glutathione (GSH) synthesis. LPS stimulated expression of all surface markers and TNF-α production. Exposure to bleaching agent extracts and H2O2 leads to a reduction of TNF-α, CD14, and CD40 expression, while the expression of CD54 was upregulated at non-cytotoxic concentrations. Whereas NAC reduced this effect, it was increased in the presence of BSO. CONCLUSIONS Extracts of bleaching agents were irreversibly cytotoxic to macrophages after a 1-h exposure. Only the expression of CD54 was upregulated. The reactions are mediated by the non-enzymatic antioxidant GSH. CLINICAL RELEVANCE The addition of an antioxidant can downregulate unfavorable effects of dental bleaching.
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Affiliation(s)
- Aletéia M M Fernandes
- Department of Health Sciences, Endodontics Division, Nove de Julho University (UNINOVE), São Paulo, Brazil.,Department of Health Sciences, Anatomy and Pathology Division, Anhanguera University, Vergueiro, 235/249-Liberdade, São Paulo, SP, 01504-000, Brazil
| | - Polyana G F Vilela
- Department of Bioscience and Oral Diagnosis, Microbiology Division, São José dos Campos Dental School, State University of São Paulo, UNESP, Av. Eng. Francisco José Longo, 777-Jardim Sao Dimas, São José dos Campos, SP, 12245-000, Brazil
| | - Marcia C Valera
- Department of Restorative Dentistry, Endodontic Division, São José dos Campos Dental School, State University of São Paulo UNESP, Av. Eng. Francisco José Longo, 777-Jardim Sao Dimas, São José dos Campos, SP, 12245-000, Brazil
| | - Carola Bolay
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Karl Anton Hiller
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Helmut Schweikl
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Gottfried Schmalz
- Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, University of Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany. .,Department of Periodontology, University of Bern, Freiburgstrasse 7, CH-3010, Bern, Switzerland.
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Sun L, Li X, Li G, Dai B, Tan W. Actinidia chinensis Planch. Improves the Indices of Antioxidant and Anti-Inflammation Status of Type 2 Diabetes Mellitus by Activating Keap1 and Nrf2 via the Upregulation of MicroRNA-424. Oxid Med Cell Longev 2017; 2017:7038789. [PMID: 28642811 PMCID: PMC5470031 DOI: 10.1155/2017/7038789] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2016] [Revised: 02/24/2017] [Accepted: 03/19/2017] [Indexed: 12/24/2022]
Abstract
The fruit juice of Actinidia chinensis Planch. has antioxidant and anti-inflammation properties on patients with type 2 diabetes mellitus (T2DM), but the molecular mechanism was unclear. The patients took the juice and the serum level of antioxidant miR-424, Kelch-like ECH-associated protein 1 (Keap1), erythroid-derived 2-like 2 (Nrf2), and biochemical indices were measured. The juice increased the levels of serum microRNA-424, Keap1, and Nrf2 and reduced the levels of interleukin-1 (IL-1) beta and IL-6 in T2DM patients. The levels of SOD and GSH were higher while the levels of ALT and AST were lower in the patients consuming the juice when compared to the patients without taking the juice. The Spearman rank correlation analysis showed that the serum levels of miR-424 were positively related to Keap1 and Nrf2 levels while Keap1 and Nrf2 levels were positively related to the levels of SOD and GSH and negatively related to IL-1 beta and IL-6. Thus, FJACP improves the indices of antioxidant and anti-inflammation status by activating Keap1 and Nrf2 via the upregulation of miR-424 in the patients with T2DM. This trial is registered with ChiCTR-ONC-17011087 on 04/07/2017.
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Affiliation(s)
- Longfeng Sun
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Xiaofei Li
- Department of Emergency Medicine, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Gang Li
- Department of Urology, Liaoning Cancer Hospital and Institute, Shenyang 110042, China
| | - Bing Dai
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
| | - Wei Tan
- Department of Geriatrics, The First Affiliated Hospital of China Medical University, Shenyang 110001, China
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Zou Y, Wang J, Peng J, Wei H. Oregano Essential Oil Induces SOD1 and GSH Expression through Nrf2 Activation and Alleviates Hydrogen Peroxide-Induced Oxidative Damage in IPEC-J2 Cells. Oxid Med Cell Longev 2016; 2016:5987183. [PMID: 28105249 DOI: 10.1155/2016/5987183] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/29/2016] [Accepted: 11/14/2016] [Indexed: 12/27/2022]
Abstract
Oregano essential oil (OEO) has long been used to improve the health of animals, particularly their intestinal health. The health benefits of OEO are generally attributed to antioxidative actions, but the mechanisms remain unclear. Here, we investigate the antioxidative effects of OEO and their underlying molecular mechanisms in porcine small intestinal epithelial (IPEC-J2) cells. We found that OEO treatment prior to hydrogen peroxide (H2O2) exposure increased cell viability and prevented lactate dehydrogenase (LDH) release into the medium. H2O2-induced reactive oxygen species (ROS) and malondialdehyde (MDA) were remarkably suppressed by OEO. OEO dose-dependently increased mRNA and protein levels of the nuclear factor-erythroid 2-related factor-2 (Nrf2) target genes Cu/Zn-superoxide dismutase (SOD1) and g-glutamylcysteine ligase (GCLC, GLCM), as well as intracellular concentrations of SOD1 and glutathione. OEO also increased intranuclear expression of Nrf2 and the activity of an antioxidant response element reporter plasmid in IPEC-J2 cells. The OEO-induced expression of Nrf2-regulated genes and increased SOD1 and glutathione concentrations in IPEC-J2 cells were reduced by Nrf2 small interfering (si) RNAs, counteracting the protective effects of OEO against oxidative stress in IPEC-J2 cells. Our results suggest that OEO protects against H2O2-induced IPEC-J2 cell damage by inducing Nrf2 and related antioxidant enzymes.
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Abstract
The aim of the study is to evaluate the safety of long-term use of Rhizoma paridis saponins (RPS).
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Affiliation(s)
- Jing Li
- Key Laboratory of Industrial Microbiology
- Ministry of Education
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
| | - Shuli Man
- Key Laboratory of Industrial Microbiology
- Ministry of Education
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
| | - Peiyu Qiu
- Key Laboratory of Industrial Microbiology
- Ministry of Education
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
| | - Wei Fan
- Key Laboratory of Industrial Microbiology
- Ministry of Education
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
| | - Liming Zhang
- Key Laboratory of Industrial Microbiology
- Ministry of Education
- College of Biotechnology
- Tianjin University of Science & Technology
- Tianjin
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency
- School of Pharmaceutical Science and Technology
- Tianjin University
- Tianjin
- China
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Abstract
Background Apolipoprotein is genetically associated with the risk of Alzheimer’s disease (AD). The APOA1, APOC3, and APOA4 genes are closely linked and located on human chromosome 11. Therefore, this gene cluster may be related to the risk of AD. Patients and methods A total of 147 AD patients and 160 healthy controls were randomly recruited from June 2013 to August 2014. APOA1, APOC3, and APOA4 levels were measured using real-time quantitative reverse-transcriptase polymerase chain reaction and enzyme-linked immunosorbent assay. Results APOA1, APOC3 and APOA4 levels were significantly lower in AD patients than controls (P<0.01). APOA1, APOC3, and APOA4 levels were negatively related with the severities of AD determined by Clinical Dementia Rating scores (P<0.01). APOA1, APOC3, and APOA4 levels showed a negative relation with Montgomery–Åsberg Depression Rating Scale scores and a positive relation with RAND 36-item health-survey scores (P<0.01). There was a decreased trend for levels of APOA1, APOC3, and APOA4 in AD patients. Conclusion Low levels of APOA1, APOC3, and APOA4 are associated with risk of AD. APOA1, APOC3, and APOA4 should be developed as combined drugs for the therapy of AD.
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Affiliation(s)
- Qiao Lin
- Department of Internal Medicine, Fourth Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yunpeng Cao
- Neural Department of Internal Medicine, First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Jie Gao
- Department of Anatomy, First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
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Chen CC, Wu ML, Ho CT, Huang TC. Blockade of the Ras/Raf/ERK and Ras/PI3K/Akt Pathways by Monacolin K Reduces the Expression of GLO1 and Induces Apoptosis in U937 Cells. J Agric Food Chem 2015; 63:1186-1195. [PMID: 25569448 DOI: 10.1021/jf505275s] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Monacolin K, a hydrolytic product of icaritin, is the major active component in the traditional fermented Monascus purpureus. Monacolin K inhibits the proliferation of acute myeloid leukemia (AML), but underlying mechanisms remain to be identified. The present study demonstrates that monacolin K inhibits the proliferation of human AML cell line U937 in a dose-dependent manner. Importantly, morphological, DNA fragmentation, and image cytometry analyses indicated that monacolin K induced U937 cell apoptosis. Monacolin K could inactivate Ras translocation from cytosol to cell membrane. Monacolin K could also reduce the Ras-dependent phosphorylation of ERK and Akt, and the subsequent translocation of nuclear factor kappa B (NF-κB) from cytosol to nucleus in U937 cells. The underlying mechanisms of apoptotic activity of monacolin K were associated with inhibition of the Ras/Raf/ERK and Ras/PI3K/Akt signals and down-regulation of HMG-CoA reductase and glyoxalase 1. On the basis of results obtained using specific inhibitors U0126, LY294002, and JSH-23, the Ras/Raf/ERK/NF-κB/GLO1 and Ras/Akt/NF-κB/GLO1 pathways were proposed for the apoptotic effect of monacolin K in U937 cells.
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Affiliation(s)
- Chun-Chia Chen
- Department of Food Science, National Pingtung University of Science and Technology , Pingtung 91201, Taiwan
| | - Mei-Li Wu
- Department of Food Science, National Pingtung University of Science and Technology , Pingtung 91201, Taiwan
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University , New Brunswick, New Jersey 08901, United States
| | - Tzou-Chi Huang
- Department of Food Science, National Pingtung University of Science and Technology , Pingtung 91201, Taiwan
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Ren T, Huang C, Cheng M. Dietary blueberry and bifidobacteria attenuate nonalcoholic fatty liver disease in rats by affecting SIRT1-mediated signaling pathway. Oxid Med Cell Longev 2014; 2014:469059. [PMID: 25544867 DOI: 10.1155/2014/469059] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 11/01/2014] [Accepted: 11/03/2014] [Indexed: 02/07/2023]
Abstract
NAFLD model rats were established and divided into NAFLD model (MG group), SIRT1 RNAi (SI group), blueberry juice (BJ group), blueberry juice + bifidobacteria (BJB group), blueberry juice + SIRT1 RNAi (BJSI group), and blueberry juice + bifidobacteria + SIRT1 RNAi groups (BJBSI group). A group with normal rats was a control group (CG). BJB group ameliorated NAFLD, which was better than BJ group (P < 0.05). The lipid accumulation was lower in CG, BJ, and BJB groups than that in MG, SI, BJSI, and BJBSI groups (P < 0.05). The levels of SIRT1 and PPAR-α were higher in CG, BJ, and BJB groups than those in MG, SI, BJSI, and BJBSI groups (P < 0.05). The levels of SREBP-1c were lower in CG, BJ, and BJB groups than those in MG, SI, BJSI, and BJBSI groups (P < 0.05). The biochemical indexes SOD, GSH, and HDL-c were improved from CG to BJB group (P < 0.05). Inversely, the levels of AST and ALT, TG, TC, LDL-c, and MDA were decreased from CG to BJB group (P < 0.05). These changes enhance antioxidative capability and biochemical index of rats. Blueberry juice and bifidobacteria improve NAFLD by activating SIRTI-mediating signaling pathway.
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