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Mahmoudi A, Butler AE, De Vincentis A, Jamialahmadi T, Sahebkar A. Microarray-based Detection of Critical Overexpressed Genes in the Progression of Hepatic Fibrosis in Non-alcoholic Fatty Liver Disease: A Protein-protein Interaction Network Analysis. Curr Med Chem 2024; 31:3631-3652. [PMID: 37194229 DOI: 10.2174/0929867330666230516123028] [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: 02/02/2023] [Revised: 03/26/2023] [Accepted: 04/11/2023] [Indexed: 05/18/2023]
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is a prevalent cause of chronic liver disease and encompasses a broad spectrum of disorders, including simple steatosis, steatohepatitis, fibrosis, cirrhosis, and liver cancer. However, due to the global epidemic of NAFLD, where invasive liver biopsy is the gold standard for diagnosis, it is necessary to identify a more practical method for early NAFLD diagnosis with useful therapeutic targets; as such, molecular biomarkers could most readily serve these aims. To this end, we explored the hub genes and biological pathways in fibrosis progression in NAFLD patients. METHODS Raw data from microarray chips with GEO accession GSE49541 were downloaded from the Gene Expression Omnibus database, and the R package (Affy and Limma) was applied to investigate differentially expressed genes (DEGs) involved in the progress of low- (mild 0-1 fibrosis score) to high- (severe 3-4 fibrosis score) fibrosis stage NAFLD patients. Subsequently, significant DEGs with pathway enrichment were analyzed, including gene ontology (GO), KEGG and Wikipathway. In order to then explore critical genes, the protein-protein interaction network (PPI) was established and visualized using the STRING database, with further analysis undertaken using Cytoscape and Gephi software. Survival analysis was undertaken to determine the overall survival of the hub genes in the progression of NAFLD to hepatocellular carcinoma. RESULTS A total of 311 significant genes were identified, with an expression of 278 being upregulated and 33 downregulated in the high vs. low group. Gene functional enrichment analysis of these significant genes demonstrated major involvement in extracellular matrix (ECM)-receptor interaction, protein digestion and absorption, and the AGE-RAGE signaling pathway. The PPI network was constructed with 196 nodes and 572 edges with PPI enrichment using a p-value < 1.0 e-16. Based on this cut-off, we identified 12 genes with the highest score in four centralities: Degree, Betweenness, Closeness, and Eigenvector. Those twelve hub genes were CD34, THY1, CFTR, COL3A1, COL1A1, COL1A2, SPP1, THBS1, THBS2, LUM, VCAN, and VWF. Four of these hub genes, namely CD34, VWF, SPP1, and VCAN, showed significant association with the development of hepatocellular carcinoma. CONCLUSION This PPI network analysis of DEGs identified critical hub genes involved in the progression of fibrosis and the biological pathways through which they exert their effects in NAFLD patients. Those 12 genes offer an excellent opportunity for further focused research to determine potential targets for therapeutic applications.
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Affiliation(s)
- Ali Mahmoudi
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Antonio De Vincentis
- Unit of Internal Medicine and Geriatrics, Università Campus Bio-Medico di Roma, Fondazione Policlinico Universitario Campus Bio-Medico di Roma, Via Alvaro del Portillo 200, Rome 00128, Italy
| | - Tannaz Jamialahmadi
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- School of Medicine, The University of Western Australia, Perth, Australia
- Department of Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Tassinari R, Tammaro A, Martinelli A, Valeri M, Maranghi F. Sex-Specific Effects of Short-Term Oral Administration of Food-Grade Titanium Dioxide Nanoparticles in the Liver and Kidneys of Adult Rats. TOXICS 2023; 11:776. [PMID: 37755786 PMCID: PMC10536411 DOI: 10.3390/toxics11090776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 09/28/2023]
Abstract
Titanium dioxide (TiO2) nanomaterial is used in several items (implant materials, pills composition, cosmetics, etc.). Although TiO2 is no longer considered safe as a food additive, the general population is exposed daily through different routes, and information is lacking on some aspects of animal and human health. This study evaluated liver and kidney toxicity of food-grade TiO2 nanoparticles (NPs) (primary size < 25 nm) in male and female rats that were orally exposed for 5 days to 0, 1, and 2 mg/kg body weight per day (comparable with daily E171 consumption). Selected liver and kidney toxicity endpoints included serum biomarkers, histopathological analysis and expression of osteopontin (SPP1), vascular endothelial growth factor (VEGF), interleukin 6 (IL-6), and neuropeptide Y (NPY). Although TiO2 NPs are known to affect the gastric mucosa, short-term exposure induced sex-specific effects: general toxicity parameters were predominantly altered in female rats, whereas the liver appeared to be more affected than the kidneys in male rats, which also showed overexpression of NPY and SPP1. In the kidneys, the TiO2 NP effects were quantitatively similar but qualitatively different in the two sexes. In conclusion, careful consideration should be paid to the presence of TiO2 NPs in other items that can lead to human exposure.
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Affiliation(s)
- Roberta Tassinari
- Center for Gender Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (R.T.); (A.T.)
| | - Alessia Tammaro
- Center for Gender Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (R.T.); (A.T.)
- Department of Biomedicine and Prevention, University of Rome “Tor Vergata”, 00173 Rome, Italy
| | - Andrea Martinelli
- Experimental Animal Welfare Sector, Istituto Superiore di Sanità, 00161 Rome, Italy; (A.M.); (M.V.)
| | - Mauro Valeri
- Experimental Animal Welfare Sector, Istituto Superiore di Sanità, 00161 Rome, Italy; (A.M.); (M.V.)
| | - Francesca Maranghi
- Center for Gender Specific Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (R.T.); (A.T.)
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Sayaf K, Gabbia D, Russo FP, De Martin S. The Role of Sex in Acute and Chronic Liver Damage. Int J Mol Sci 2022; 23:ijms231810654. [PMID: 36142565 PMCID: PMC9505609 DOI: 10.3390/ijms231810654] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 11/16/2022] Open
Abstract
Acute and chronic hepatic damages are caused by xenobiotics or different diseases affecting the liver, characterized by different etiologies and pathological features. It has been demonstrated extensively that liver damage progresses differently in men and women, and some chronic liver diseases show a more favorable prognosis in women than in men. This review aims to update the most recent advances in the comprehension of the molecular basis of the sex difference observed in both acute and chronic liver damage. With this purpose, we report experimental studies on animal models and clinical observations investigating both acute liver failure, e.g., drug-induced liver injury (DILI), and chronic liver diseases, e.g., viral hepatitis, alcoholic liver disease (ALD), non-alcoholic fatty liver disease (NAFLD), autoimmune liver diseases, and hepatocellular carcinoma (HCC).
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Affiliation(s)
- Katia Sayaf
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35131 Padova, Italy
| | - Daniela Gabbia
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
| | - Francesco Paolo Russo
- Department of Surgery, Oncology and Gastroenterology, University of Padova, 35131 Padova, Italy
- Gastroenterology and Multivisceral Transplant Units, Azienda Ospedale—Università di Padova, 35131 Padova, Italy
- Correspondence:
| | - Sara De Martin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, 35131 Padova, Italy
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Li J, Wang B, Li X, Zhu Y. Estimation of Hub Genes and Infiltrating Immune Cells in Non-Smoking Females with Lung Adenocarcinoma by Integrated Bioinformatic Analysis. Med Sci Monit 2020; 26:e922680. [PMID: 32669531 PMCID: PMC7384333 DOI: 10.12659/msm.922680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND In recent years, the morbidity and mortality rates of lung adenocarcinoma in non-smoking females have been increasing dramatically. Although much research has been done with some progress, the molecular mechanism remains unclear. In this study we aimed to estimate hub genes and infiltrating immune cells in non-smoking females with lung adenocarcinoma. MATERIAL AND METHODS Firstly, we obtained differentially expressed genes (DEGs) by GEO2R analysis based on 3 independent mRNA microarray datasets of GSE10072, GSE31547, and GSE32863. The DAVID database was utilized for functional enrichment analysis of DEGs. Moreover, we identified hub genes with prognostic value by STRING, Cytoscape, and Kaplan Meier plotter. Subsequently, these genes were further analyzed by Gene Expression Profiling Interactive Analysis, Oncomine, Tumor Immune Estimation Resource, and Human Protein Atlas. Finally, the immune infiltration analysis was performed by CIBERSORT and The Cancer Genome Atlas with R packages. RESULTS We found 315 DEGs enriching in the extracellular matrix organization, cell adhesion, integrin binding, angiogenesis, and hypoxic response. And among these DEGs, we identified 10 hub genes (SPP1, ENG, ATF3, TOP2A, COL1A1, PAICS, CAV1, CAT, TGFBR2, and ANGPT1) of significant prognostic value. Simultaneously, we illustrated the distribution and differential expressions of 22 immune cell subtypes. and dendritic cells resting and macrophages M1 were identified with prognostic significance. CONCLUSIONS The results indicated that 10 hub genes and 2 immune cell subtypes might be promising biomarkers for lung adenocarcinoma in non-smoking females. This finding needs to be further evaluated.
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Affiliation(s)
- Jie Li
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
| | - Ben Wang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
| | - Xin Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
| | - Yuxi Zhu
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China (mainland)
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Chang WL, Lin MY, Kuo HY, Yang HB, Cheng HC, Lu CC, Sheu BS. Osteopontin polymorphism increases gastric precancerous intestinal metaplasia susceptibility in Helicobacter pylori infected male. Future Oncol 2017; 13:1415-1425. [PMID: 28685609 DOI: 10.2217/fon-2017-0006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
AIM Whether genetic polymorphisms of osteopontin (OPN) coding gene, SPP1, determine the risk of gastric precancerous intestinal metaplasia (IM) in Helicobacter pylori infected patients. PATIENTS & METHODS Helicobacter pylori infected patients (100 with and 210 without IM) were recruited to evaluate the associations of SPP1 promoter polymorphisms with gastric IM and adjusted for age, sex and smoking. Gastric OPN expression and inflammation were evaluated by immunohistochemistry, and haemotoxylin and eosin stain. RESULTS Only in males, but not females, carriage of both GG genotype at rs11730059 and C-G-C haplotype at rs6833161-rs2853744-rs11730582 significantly increased the IM risk (OR: 4.92; 95% CI: 1.65-14.65; p = 0.004). Nearly 87.5% of males with IM carried risky genotype or haplotype. Carriers of the risky genotype or haplotype also had increased gastric OPN expression (p = 0.038) and inflammation (p = 0.007). CONCLUSION SPP1 polymorphisms predispose to IM development in H. pylori infected males.
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Affiliation(s)
- Wei-Lun Chang
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Meng-Ying Lin
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hsin-Yu Kuo
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Institute of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hsiao-Bai Yang
- Department of Pathology, Ton-Yen General Hospital, Hsin-Chu, Taiwan
| | - Hsiu-Chi Cheng
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Cheng-Chan Lu
- Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Bor-Shyang Sheu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Internal Medicine, Tainan Hospital, Ministry of Health & Welfare, Tainan, Taiwan
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Chen T, Sun L, He C, Gong Y, Xu Q, Yuan Y. Serum OPN expression for identification of gastric cancer and atrophic gastritis and its influencing factors. PLoS One 2014; 9:e114005. [PMID: 25479069 PMCID: PMC4257596 DOI: 10.1371/journal.pone.0114005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 11/03/2014] [Indexed: 01/08/2023] Open
Abstract
Background Most studies have found that osteopontin (OPN) expression level is related to the poor prognosis of gastric cancer. However, few studies have examined the relationship between OPN expression and gastric precancerous diseases, and the potential role of OPN in the formation and development of GC. We investigated the relationships between serum OPN levels and the risks of gastric cancer (GC) and its precancerous disease, to explore the diagnostic efficacy of serum OPN level for GC and atrophic gastritis and its influencing factors. Methods A total of 1,452 patients were enrolled, including 609 with mild superficial gastritis (SG), 594 with atrophic gastritis (AG) and 249 with GC. The levels of serum OPN and serum Helicobacter pylori IgG antibody were detected by enzyme-linked immunosorbent assay. Results Serum OPN levels increased from mild SG (1.99±1.91 ng/ml) to AG (2.37±2.27 ng/ml) to GC (5.94±4.52 ng/ml) (P≤0.002), along with increasing severity of gastric disease. OPN levels were significantly higher in patients with GC compared with the non-cancer population (2.17±2.10, P<0.0001). Serum OPN level was positively correlated with age and was higher in men than women, but was not correlated with H. pylori infection status. The area under the receiver operating characteristic curve was 0.805, the optimal cutoff was 2.56 ng/ml and the sensitivity and specificity were 74.3% and 71.8%, respectively, for the ability of serum OPN to discriminate GC. Conclusions Serum OPN expression was closely related to the risks of GC and AG, and it might be a useful marker for the discrimination of GC. OPN level was positively correlated with age and male sex, but was not affected by H. pylori infection, and it was promoted by smoking and drinking, in patients with mild SG.
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Affiliation(s)
- Tiejun Chen
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
- Medical Oncology Department of Benxi Central Hospital, Benxi, China
| | - Liping Sun
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Caiyun He
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuehua Gong
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Qian Xu
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
| | - Yuan Yuan
- Tumor Etiology and Screening Department of Cancer Institute and General Surgery, the First Affiliated Hospital of China Medical University, and Key Laboratory of Cancer Etiology and Prevention (China Medical University), Liaoning Provincial Education Department, Shenyang 110001, China
- * E-mail:
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Immunomodulatory effects by oral contraceptives in normal and cholestatic female rats: Role of cytokines. Int Immunopharmacol 2014; 21:10-9. [DOI: 10.1016/j.intimp.2014.03.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 03/11/2014] [Accepted: 03/31/2014] [Indexed: 01/10/2023]
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Ge X, Leung TM, Arriazu E, Lu Y, Urtasun R, Christensen B, Fiel MI, Mochida S, Sørensen ES, Nieto N. Osteopontin binding to lipopolysaccharide lowers tumor necrosis factor-α and prevents early alcohol-induced liver injury in mice. Hepatology 2014; 59:1600-16. [PMID: 24214181 PMCID: PMC3966944 DOI: 10.1002/hep.26931] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Accepted: 11/06/2013] [Indexed: 12/16/2022]
Abstract
UNLABELLED Although osteopontin (OPN) is induced in alcoholic patients, its role in the pathophysiology of alcoholic liver disease (ALD) remains unclear. Increased translocation of lipopolysaccharide (LPS) from the gut is key for the onset of ALD because it promotes macrophage infiltration and activation, tumor necrosis factor-α (TNFα) production, and liver injury. Since OPN is protective for the intestinal mucosa, we postulated that enhancing OPN expression in the liver and consequently in the blood and/or in the gut could protect from early alcohol-induced liver injury. Wild-type (WT), OPN knockout (Opn(-/-)), and transgenic mice overexpressing OPN in hepatocytes (Opn(HEP) Tg) were fed either the control or the ethanol Lieber-DeCarli diet. Ethanol increased hepatic, plasma, biliary, and fecal OPN more in Opn(HEP) Tg than in WT mice. Steatosis was less in ethanol-treated Opn(HEP) Tg mice as shown by decreased liver-to-body weight ratio, hepatic triglycerides, the steatosis score, oil red-O staining, and lipid peroxidation. There was also less inflammation and liver injury as demonstrated by lower alanine aminotransferase (ALT) activity, hepatocyte ballooning degeneration, LPS levels, the inflammation score, and the number of macrophages and TNFα(+) cells. To establish if OPN could limit LPS availability and its noxious effects in the liver, binding studies were performed. OPN showed binding affinity for LPS which prevented macrophage activation, reactive oxygen, and nitrogen species generation and TNFα production. Treatment with milk OPN (m-OPN) blocked LPS translocation in vivo and protected from early alcohol-induced liver injury. CONCLUSION Natural induction plus forced overexpression of OPN in the liver or treatment with m-OPN protect from early alcohol-induced liver injury by blocking the gut-derived LPS and TNFα effects in the liver.
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Affiliation(s)
- Xiaodong Ge
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, Box 1123, 1425 Madison Avenue, Room 11-76, New York, NY 10029, USA
| | - Tung-Ming Leung
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, Box 1123, 1425 Madison Avenue, Room 11-76, New York, NY 10029, USA
| | - Elena Arriazu
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, Box 1123, 1425 Madison Avenue, Room 11-76, New York, NY 10029, USA
| | - Yongke Lu
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, Box 1123, 1425 Madison Avenue, Room 11-76, New York, NY 10029, USA
| | - Raquel Urtasun
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, Box 1123, 1425 Madison Avenue, Room 11-76, New York, NY 10029, USA
| | - Brian Christensen
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, Aarhus Science Park, DK-8000 Denmark
| | - Maria Isabel Fiel
- Department of Pathology, Mount Sinai School of Medicine, 1468 Madison Avenue, Room 15-28A, New York, NY 10029, USA
| | - Satoshi Mochida
- Gastroenterology and Hepatology, Internal Medicine, Saitama Medical School, 38 Morohongo, Moroyama-cho, Iruma-gun, Saitama 350-0495, Japan
| | - Esben S. Sørensen
- Department of Molecular Biology and Genetics, Aarhus University, Gustav Wieds Vej 10, Aarhus Science Park, DK-8000 Denmark
| | - Natalia Nieto
- Division of Liver Diseases, Department of Medicine, Mount Sinai School of Medicine, Box 1123, 1425 Madison Avenue, Room 11-76, New York, NY 10029, USA
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Zhang W, Hong R, Tian T. Silymarin's Protective Effects and Possible Mechanisms on Alcoholic Fatty Liver for Rats. Biomol Ther (Seoul) 2013; 21:264-9. [PMID: 24244810 PMCID: PMC3819898 DOI: 10.4062/biomolther.2013.020] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Revised: 06/05/2013] [Accepted: 07/05/2013] [Indexed: 02/06/2023] Open
Abstract
Silymarin has been introduced fairly recently as a hepatoprotective agent. But its mechanisms of action still have not been well established. The aim of this study was to make alcoholic fatty liver model of rats in a short time and investigate silymarin’s protective effects and possible mechanisms on alcoholic fatty liver for rats. The model of rat’s alcoholic fatty liver was induced by intragastric infusion of ethanol and high-fat diet for six weeks. Histopathological changes were assessed by hematoxylin and eosin staining (HE). The activities of alanine transarninase (ALT) and aspartate aminotransferase (AST), the levels of total bilirubin (TBIL), total cholesterol (TC) and triglyceride (TG) in serum were detected with routine laboratory methods using an autoanalyzer. The activities of superoxide dismutase (SOD) and glutathione peroxidase (GPx) and the level of malondialdehyde (MDA) in liver homogenates were measured by spectrophotometry. The TG content in liver tissue was determined by spectrophotometry. The expression of nuclear factor-κB (NF-κB), intercellular adhesion molecule-1 (ICAM-1) and interleukin-6 (IL-6) in the liver were analyzed by immunohistochemistry. Silymarin effectively protected liver from alcohol-induced injury as evidenced by improving histological damage situation, reducing ALT and AST activities and TBIL level in serum, increasing SOD and GPx activities and decreasing MDA content in liver homogenates and reducing TG content in liver tissue. Additionally, silymarin markedly downregulated the expression of NF-κB p65, ICAM-1 and IL-6 in liver tissue. In conclusion, Silymarin could protect against the liver injury caused by ethanol administration. The effect may be related to alleviating lipid peroxidation and inhibiting the expression of NF-κB.
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Affiliation(s)
- Wei Zhang
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Key Laboratory of Digestive Disease of Anhui Province, Hefei 230022, Anhui Province, China
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Winhofer Y, Kiefer FW, Handisurya A, Tura A, Klein K, Schneider B, Marculescu R, Wagner OF, Pacini G, Luger A, Stulnig TM, Kautzky-Willer A. CTX (crosslaps) rather than osteopontin is associated with disturbed glucose metabolism in gestational diabetes. PLoS One 2012; 7:e40947. [PMID: 22844418 PMCID: PMC3402470 DOI: 10.1371/journal.pone.0040947] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Accepted: 06/15/2012] [Indexed: 11/19/2022] Open
Abstract
Objective Reciprocal interaction between bone and glucose metabolism might play a pivotal role in the development of type 2 diabetes. We recently demonstrated that osteocalcin is increased in women with gestational diabetes (GDM) compared to healthy pregnant women and related to enhanced insulin secretion. Here, we aimed to investigate the role of the bone resorption marker CTX and osteopontin (OPN), a key molecule in subclinical inflammation underlying insulin resistance, in gestational diabetes. Methods Insulin sensitivity and secretion (derived from OGTT) as well as CTX and osteopontin were investigated in 26 GDM and 52 women with normal glucose tolerance during pregnancy [CON] between 24th and 28th gestational weeks; 24 women also underwent postpartum examination. Results CTX was significantly higher in GDM compared to CON (0.44±0.20 vs.0.28±0.12 ng/ml, p<.0001) and positively correlated with osteocalcin (R = 0.64, p<.0001) and parameters of insulin secretion. Osteopontin plasma concentrations were decreased in GDM compared to CON (28.81±22.12 vs.37.68±19.63 ng/ml, p = 0.04), and did not show any relation to insulin secretion or sensitivity, but were significantly correlated with CRP (R = 0.3, p<0.007) and liver enzymes. Twelve weeks after delivery CTX and OPN were increased compared to pregnancy (both p<.0001) and did not differ between GDM and CON. Conclusion Our findings support the idea of a tight regulation between bone and glucose metabolism, and suggest, that less curbed CTX during pregnancy might be involved in osteocalcin-mediated amelioration of insulin secretion in GDM. On the other hand, osteopontin was unrelated to insulin resistance in GDM, but associated with inflammatory markers and liver enzymes in all women.
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Affiliation(s)
- Yvonne Winhofer
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Florian W. Kiefer
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Ammon Handisurya
- Division of Nephrology, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Andrea Tura
- Metabolic Unit, Institute of Biomedical Engineering, National Research Council, Padova, Italy
| | - Katharina Klein
- Department of Obstetrics and Gynecology, Medical University of Vienna, Vienna, Austria
| | - Barbara Schneider
- CeMSIIS, Section of Medical Statistics, Medical University of Vienna, Vienna, Austria
| | - Rodrig Marculescu
- Clinical Institute for Medical and Chemical Laboratory Diagnostics, General Hospital of Vienna, Vienna, Austria
| | - Oswald F. Wagner
- Clinical Institute for Medical and Chemical Laboratory Diagnostics, General Hospital of Vienna, Vienna, Austria
| | - Giovanni Pacini
- Metabolic Unit, Institute of Biomedical Engineering, National Research Council, Padova, Italy
| | - Anton Luger
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
| | - Thomas M. Stulnig
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
- Christian Doppler-Laboratory for Cardio-Metabolic Immunotherapy, Medical University of Vienna, Vienna, Austria
| | - Alexandra Kautzky-Willer
- Division of Endocrinology and Metabolism, Department of Internal Medicine III, Medical University of Vienna, Vienna, Austria
- * E-mail:
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Abstract
This article discusses several subjects pertinent to a consideration of the role of gender and hormones in alcoholic liver injury (ALI). Beginning with an overview of factors involved in the pathogenesis of ALI, we review changes in sex hormone metabolism resulting from alcohol ingestion, summarize research that points to estrogen as a cofactor in ALI, consider evidence that gut injury is linked to liver injury in the setting of alcohol, and briefly review the limited evidence regarding sex hormones and gut barrier function. In both women and female animals, most studies reveal a propensity toward greater alcohol-induced liver injury due to female gender, although exact hormonal influences are not yet understood. Thus, women and their physicians should be alert to the dangers of excess alcohol consumption and the increased potential for liver injury in females.
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Huang W, Zhu G, Huang M, Lou G, Liu Y, Wang S. Plasma osteopontin concentration correlates with the severity of hepatic fibrosis and inflammation in HCV-infected subjects. Clin Chim Acta 2010; 411:675-8. [PMID: 20138033 DOI: 10.1016/j.cca.2010.01.029] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2010] [Revised: 01/23/2010] [Accepted: 01/25/2010] [Indexed: 12/20/2022]
Abstract
BACKGROUND The association between OPN level and the histological severity of hepatic fibrosis and inflammation in hepatitis C virus (HCV) induced liver fibrosis remains unknown. METHODS 120 chronic HCV-infected subjects and 75 controls were enrolled in this study. Assessment of liver histology was performed based on liver biopsy. Plasma OPN levels were determined. RESULTS Significant differences were noted in the mean plasma OPN levels between subjects with extensive fibrosis and those with mild fibrosis (4.29+/-1.01 ng/ml vs. 2.15+/-0.63 ng/ml, respectively; p<0.001). Similarly, the subjects with higher histological activity index (HAI) score had elevated OPN levels than those with mild HAI score (4.41+/-1.11 ng/ml vs. 2.25+/-0.94 ng/ml, respectively; p<0.001). The correlation between the plasma OPN levels and the severity of liver fibrosis degree and HAI score were noted (r=0.945, and r=0.788, respectively both p<0.001). Logistic regression analysis showed that serum OPN was an independent risk factor contributing to extensive liver fibrosis and inflammation (p=0.0018 and p<0.001, respectively) in patients with HCV subjects. CONCLUSION The plasma OPN level is correlated with the severity of liver fibrosis and inflammation, suggesting OPN could be used as a biomarker to evaluate the severity of liver damages in HCV subjects.
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Affiliation(s)
- Wenbao Huang
- Department of Infectious Diseases, Hangzhou First People's Hospital, PR China.
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