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Jiang Y, Zhang R, Guo JQ, Qian LL, Ji JJ, Wu Y, Ji ZJ, Yang ZW, Zhang Y, Chen X, Ma GS, Yao YY. Identification of major hub genes involved in high-fat diet-induced obese visceral adipose tissue based on bioinformatics approach. Adipocyte 2023; 12:2169227. [PMID: 36654490 PMCID: PMC9897782 DOI: 10.1080/21623945.2023.2169227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
High-fat diet (HFD) can cause obesity, inducing dysregulation of the visceral adipose tissue (VAT). This study aimed to explore potential biological pathways and hub genes involved in obese VAT, and for that, bioinformatic analysis of multiple datasets was performed. The expression profiles (GSE30247, GSE167311 and GSE79434) were downloaded from Gene Expression Omnibus. Overlapping differentially expressed genes (ODEGs) between normal diet and HFD groups in GSE30247 and GSE167311 were selected to run protein-protein interaction network, GO and KEGG analysis. The hub genes in ODEGs were screened by Cytoscape software and further verified in GSE79434 and obese mouse model. A total of 747 ODEGs (599 up-regulated and 148 down-regulated) were screened, and the GO and KEGG analysis showed that the up-regulated ODEGs were significantly enriched in inflammatory response and extracellular matrix receptor interaction pathways. On the other hand, the down-regulated ODEGs were involved in metabolic pathways; however, there were no significant KEGG pathways. Furthermore, six hub genes, Mki67, Rac2, Itgb2, Emr1, Tyrobp and Csf1r were acquired. These pathways and genes were verified in GSE79434 and VAT of obese mice. This study revealed that HFD induced VAT expansion, inflammation and fibrosis, and the hub genes could be used as therapeutic biomarkers in obesity.
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Affiliation(s)
- Yu Jiang
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Rui Zhang
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Jia-Qi Guo
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Ling-Lin Qian
- Department of Cardiology, Zhejiang Provincial People’s Hospital, Hangzhou, P. R. China
| | - Jing-Jing Ji
- Department of Cardiology, Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, P. R. China
| | - Ya Wu
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Zhen-Jun Ji
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Zi-Wei Yang
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Yao Zhang
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Xi Chen
- Department of Cardiology, Anqing First People’s Hospital of Anhui Province, Anqing, P. R. China
| | - Gen-Shan Ma
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China
| | - Yu-Yu Yao
- Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, P. R. China,CONTACT Yu-Yu Yao Department of Cardiology, Zhongda Hospital, School of Medicine, Southeast University, 87 Dingjiaqiao, Nanjing210009, Jiangsu, P. R. China
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Bang J, Son KH, Heo HR, Park E, Kwak HJ, Uhm KO, Chung MH, Kim YY, Lim HJ. Exogenous 8-Hydroxydeoxyguanosine Attenuates PM 2.5-Induced Inflammation in Human Bronchial Epithelial Cells by Decreasing NLRP3 Inflammasome Activation. Antioxidants (Basel) 2023; 12:1189. [PMID: 37371919 DOI: 10.3390/antiox12061189] [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: 04/05/2023] [Revised: 05/20/2023] [Accepted: 05/28/2023] [Indexed: 06/29/2023] Open
Abstract
Particulate matter 2.5 (PM2.5) induces lung injury by increasing the generation of reactive oxygen species (ROS) and inflammation. ROS aggravates NLRP3 inflammasome activation, which activates caspase-1, IL-1β, and IL-18 and induces pyroptosis; these factors propagate inflammation. In contrast, treatment with exogenous 8-hydroxydeoxyguanosine (8-OHdG) decreases RAC1 activity and eventually decreases dinucleotide phosphate oxidase (NOX) and ROS generation. To establish modalities that would mitigate PM2.5-induced lung injury, we evaluated whether 8-OHdG decreased PM2.5-induced ROS generation and NLRP3 inflammasome activation in BEAS-2B cells. CCK-8 and lactate dehydrogenase assays were used to determine the treatment concentration. Fluorescence intensity, Western blotting, enzyme-linked immunosorbent assay, and immunoblotting assays were also performed. Treatment with 80 μg/mL PM2.5 increased ROS generation, RAC1 activity, NOX1 expression, NLRP3 inflammasome (NLRP3, ASC, and caspase-1) activity, and IL-1β and IL-18 levels in cells; treatment with 10 μg/mL 8-OHdG significantly attenuated these effects. Furthermore, similar results, such as reduced expression of NOX1, NLRP3, ASC, and caspase-1, were observed in PM2.5-treated BEAS-2B cells when treated with an RAC1 inhibitor. These results show that 8-OHdG mitigates ROS generation and NLRP3 inflammation by inhibiting RAC1 activity and NOX1 expression in respiratory cells exposed to PM2.5.
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Affiliation(s)
- Jihye Bang
- Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence Research, National Institute of Health, Osong Health Technology Administration Complex 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si 28159, Republic of Korea
| | - Kuk Hui Son
- Gachon University Gil Medical Center, Department of Thoracic and Cardiovascular Surgery, College of Medicine, Gachon University, 21, Namdong-daero 774 beon-gil, Namdong-gu, Incheon 21565, Republic of Korea
| | - Hye-Ryeon Heo
- Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence Research, National Institute of Health, Osong Health Technology Administration Complex 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si 28159, Republic of Korea
| | - Eunsook Park
- Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence Research, National Institute of Health, Osong Health Technology Administration Complex 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si 28159, Republic of Korea
| | - Hyun-Jeong Kwak
- Major of Life Science, Division of Bioconvergence, College of Convergence and Integrated Science, Kyonggi University, 154-42 Gwanggosan-ro, Yeongtong-gu, Suwon-si 16227, Republic of Korea
| | - Kyung-Ok Uhm
- Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence Research, National Institute of Health, Osong Health Technology Administration Complex 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si 28159, Republic of Korea
| | - Myung-Hee Chung
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, 155, Gaetbeol-ro, Yeonsu-ku, Incheon 21999, Republic of Korea
| | - Young-Youl Kim
- Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence Research, National Institute of Health, Osong Health Technology Administration Complex 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si 28159, Republic of Korea
| | - Hyun Joung Lim
- Division of Allergy and Respiratory Disease Research, Department of Chronic Disease Convergence Research, National Institute of Health, Osong Health Technology Administration Complex 187, Osongsaengmyeong 2-ro, Osong-eup, Heungdeok-gu, Cheongju-si 28159, Republic of Korea
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Ji MJ, Son KH, Hong JH. Addition of oh8dG to Cardioplegia Attenuated Myocardial Oxidative Injury through the Inhibition of Sodium Bicarbonate Cotransporter Activity. Antioxidants (Basel) 2022; 11:antiox11091641. [PMID: 36139714 PMCID: PMC9495749 DOI: 10.3390/antiox11091641] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/19/2022] [Accepted: 08/23/2022] [Indexed: 11/28/2022] Open
Abstract
The biomarker 8-hydroxy-2′-deoxyguanosine (oh8dG) is derived from oxidized nucleic acids or products of oxidant-mediated DNA damage. Enhanced sodium bicarbonate cotransporter (NBC) activity is caused by reactive oxygen species (ROS) production in ventricular myocytes. Thus, we hypothesized that cardioplegia-solution-mediated ROS generation may be involved in the regulation of NBC activity in cardiomyocytes and that oh8dG treatment may modulate ROS and associated NBC activity. Langendorff-free cardioplegia-arrested cardiac strips and cardiomyocytes were isolated to determine the NBC activity and effects of oh8dG on oxidative-stress-mediated cardiac damage markers. We first determined the histidine-tryptophan-ketoglutarate (HTK) solution mediated NBC activity in cardiac strips and cells. The oh8dG treatment attenuated NBC activity in the electroneutral or electrogenic form of NBC. Additionally, exposure to HTK solution induced ROS, whereas co-administration of oh8dG attenuated ROS-mediated NBC activity, reduced ROS levels, and decreased the expression of apoptotic markers and fibrosis-associated proteins in cardiac cells. The oh8dG-administrated cardiac tissues were also protected from enhanced HTK-induced damage markers, heat shock protein 60 and polyADP-ribose. Our results show that oh8dG has a protective role against myocardial oxidative damage and provides a useful treatment strategy for restoring cardiac function.
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Affiliation(s)
- Min Jeong Ji
- Department of Health Sciences and Technology, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Korea
| | - Kuk Hui Son
- Department of Thoracic and Cardiovascular Surgery, Gachon University Gil Medical Center, Gachon University, Incheon 21565, Korea
- Correspondence: (K.H.S.); (J.H.H.); Tel.: +82-32-899-6682 (J.H.H.)
| | - Jeong Hee Hong
- Department of Health Sciences and Technology, Lee Gil Ya Cancer and Diabetes Institute, GAIHST, Gachon University, 155 Getbeolro, Yeonsu-gu, Incheon 21999, Korea
- Correspondence: (K.H.S.); (J.H.H.); Tel.: +82-32-899-6682 (J.H.H.)
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Aragón-Herrera A, Feijóo-Bandín S, Moraña-Fernández S, Anido-Varela L, Roselló-Lletí E, Portolés M, Tarazón E, Lage R, Moscoso I, Barral L, Bani D, Bigazzi M, Gualillo O, González-Juanatey JR, Lago F. Relaxin has beneficial effects on liver lipidome and metabolic enzymes. FASEB J 2021; 35:e21737. [PMID: 34143495 DOI: 10.1096/fj.202002620rr] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 05/27/2021] [Accepted: 06/02/2021] [Indexed: 11/11/2022]
Abstract
Relaxin is an insulin-like hormone with pleiotropic protective effects in several organs, including the liver. We aimed to characterize its role in the control of hepatic metabolism in healthy rats. Sprague-Dawley rats were treated with human recombinant relaxin-2 for 2 weeks. The hepatic metabolic profile was analyzed using UHPLC-MS platforms. Hepatic gene expression of key enzymes of desaturation (Fads1/Fads2) of n-6 and n-3 polyunsaturated fatty acids (PUFAs), of phosphatidylethanolamine (PE) N-methyltransferase (Pemt), of fatty acid translocase Cd36, and of glucose-6-phosphate isomerase (Gpi) were quantified by Real Time-PCR. Activation of 5'AMP-activated protein kinase (AMPK) was analyzed by Western Blot. Relaxin-2 significantly modified the hepatic levels of 19 glycerophospholipids, 2 saturated (SFA) and 1 monounsaturated (MUFA) fatty acids (FA), 3 diglycerides, 1 sphingomyelin, 2 aminoacids, 5 nucleosides, 2 nucleotides, 1 carboxylic acid, 1 redox electron carrier, and 1 vitamin. The most noteworthy changes corresponded to the substantially decreased lysoglycerophospholipids, and to the clearly increased FA (16:1n-7/16:0) and MUFA + PUFA/SFA ratios, suggesting enhanced desaturase activity. Hepatic gene expression of Fads1, Fads2, and Pemt, which mediates lipid balance and liver health, was increased by relaxin-2, while mRNA levels of the main regulator of hepatic FA uptake Cd36, and of the essential glycolysis enzyme Gpi, were decreased. Relaxin-2 augmented the hepatic activation of the hepatoprotector and master regulator of energy homeostasis AMPK. Relaxin-2 treatment also rised FADS1, FADS2, and PEMT gene expression in cultured Hep G2 cells. Our results bring to light the hepatic metabolic features stimulated by relaxin, a promising hepatoprotective molecule.
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Affiliation(s)
- Alana Aragón-Herrera
- Cellular and Molecular Cardiology Unit and Department of Cardiology, Institute of Biomedical Research of Santiago de Compostela (IDIS-SERGAS), Santiago de Compostela, Spain.,CIBERCV, Institute of Health Carlos III, Madrid, Spain
| | - Sandra Feijóo-Bandín
- Cellular and Molecular Cardiology Unit and Department of Cardiology, Institute of Biomedical Research of Santiago de Compostela (IDIS-SERGAS), Santiago de Compostela, Spain.,CIBERCV, Institute of Health Carlos III, Madrid, Spain
| | - Sandra Moraña-Fernández
- Cellular and Molecular Cardiology Unit and Department of Cardiology, Institute of Biomedical Research of Santiago de Compostela (IDIS-SERGAS), Santiago de Compostela, Spain.,Cardiology Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela and Health Research Institute, University Clinical Hospital of Santiago de Compostela, Santiago de Compostela, Spain
| | - Laura Anido-Varela
- Cellular and Molecular Cardiology Unit and Department of Cardiology, Institute of Biomedical Research of Santiago de Compostela (IDIS-SERGAS), Santiago de Compostela, Spain
| | - Esther Roselló-Lletí
- CIBERCV, Institute of Health Carlos III, Madrid, Spain.,Cardiocirculatory Unit, Health Institute La Fe University Hospital (IIS La Fe), Valencia, Spain
| | - Manuel Portolés
- CIBERCV, Institute of Health Carlos III, Madrid, Spain.,Cardiocirculatory Unit, Health Institute La Fe University Hospital (IIS La Fe), Valencia, Spain
| | - Estefanía Tarazón
- CIBERCV, Institute of Health Carlos III, Madrid, Spain.,Cardiocirculatory Unit, Health Institute La Fe University Hospital (IIS La Fe), Valencia, Spain
| | - Ricardo Lage
- CIBERCV, Institute of Health Carlos III, Madrid, Spain.,Cardiology Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela and Health Research Institute, University Clinical Hospital of Santiago de Compostela, Santiago de Compostela, Spain
| | - Isabel Moscoso
- CIBERCV, Institute of Health Carlos III, Madrid, Spain.,Cardiology Group, Center for Research in Molecular Medicine and Chronic Diseases (CIMUS), University of Santiago de Compostela and Health Research Institute, University Clinical Hospital of Santiago de Compostela, Santiago de Compostela, Spain
| | - Luis Barral
- Polymers Research Group, Department of Physics and Earth Sciences, University of A Coruña, Polytechnic University School of Serantes, Ferrol, Spain
| | - Daniele Bani
- Research Unit of Histology and Embryology, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Mario Bigazzi
- Endocrine Section, Prosperius Institute, Florence, Italy
| | - Oreste Gualillo
- SERGAS (Servizo Galego de Saúde) and IDIS (Instituto de Investigación Sanitaria de Santiago) NEIRID Lab (Neuroendocrine Interactions in Rheumatology and Inflammatory Diseases), Research Laboratory 9, Santiago University Clinical Hospital, Santiago de Compostela, Spain
| | - José Ramón González-Juanatey
- Cellular and Molecular Cardiology Unit and Department of Cardiology, Institute of Biomedical Research of Santiago de Compostela (IDIS-SERGAS), Santiago de Compostela, Spain.,CIBERCV, Institute of Health Carlos III, Madrid, Spain
| | - Francisca Lago
- Cellular and Molecular Cardiology Unit and Department of Cardiology, Institute of Biomedical Research of Santiago de Compostela (IDIS-SERGAS), Santiago de Compostela, Spain.,CIBERCV, Institute of Health Carlos III, Madrid, Spain
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Solis Paredes JM, Perichart Perera O, Montoya Estrada A, Reyes Muñoz E, Espino y Sosa S, Ortega Castillo V, Medina Bastidas D, Tolentino Dolores M, Sanchez Martinez M, Nava Salazar S, Estrada Gutierrez G. Gestational Weight Gain Influences the Adipokine-Oxidative Stress Association during Pregnancy. Obes Facts 2021; 14:604-612. [PMID: 34535612 PMCID: PMC8740011 DOI: 10.1159/000518639] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 07/21/2021] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION AND OBJECTIVE The weight gained during pregnancy could determine the immediate and future health of the mother-child dyad. Excessive gestational weight gain (EGWG) due to abnormal adipose tissue (AT) accumulation is strongly associated with adverse perinatal outcomes as gestational diabetes, macrosomia, obesity, and hypertension further in life. Dysregulation of adipokine, AT dysfunction, and an imbalance in the prooxidant-antioxidant systems are critical features in altered AT accumulation. This study was aimed to investigate the association between adipokines and oxidative stress markers in pregnant women and the influence of the GWG on this association. METHODS Maternal blood samples were obtained in the third trimester of pregnancy (n = 74) and serum adipokines (adiponectin, leptin, and resistin), oxidative damage markers: 8-oxo-2'-deoxyguanosine (8-oxodG), lipohydroperoxides (LOOH), malondialdehyde (MDA), and carbonylated proteins (CP), and glucose a metabolic marker were measured. RESULTS Women with EGWG had low adiponectin levels than women with adequate weight gain (AWG) or insufficient weight gain (IWG). Multiple linear regression models revealed a positive association between adiponectin and 8-oxodG in women with AWG (B = 1.09, 95% CI: 164-222, p = 0.027) and IWG (B = 0.860, 95% CI: 0.199-1.52, p = 0.013) but not in women with EGWG. In women with EGWG, leptin was positively associated with LOOH (p = 0.018), MDA (p = 0.005), and CP (p = 0.010) oxidative markers. CONCLUSION Our findings suggest that concurrent mechanisms regulate adipokine production and oxidative stress in pregnant women and that this regulation is influenced by GWG, probably due to an excessive AT accumulation.
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Affiliation(s)
- Juan Mario Solis Paredes
- Department of Human Genetics and Genomics, Instituto Nacional de Perinatologia, Mexico City, Mexico
| | - Otilia Perichart Perera
- Instituto Nacional de Perinatologia, Nutrition and Bioprogramming Coordination, Mexico City, Mexico
| | - Araceli Montoya Estrada
- Instituto Nacional de Perinatologia, Coordination of Gynecological and Perinatal Endocrinology, Mexico City, Mexico
| | - Enrique Reyes Muñoz
- Instituto Nacional de Perinatologia, Coordination of Gynecological and Perinatal Endocrinology, Mexico City, Mexico
| | | | | | - Diana Medina Bastidas
- Instituto Nacional de Perinatologia– Facultad de Quimica-UNAM, Unidad de Investigación en Reproducción Humana, Mexico City, Mexico
| | | | | | - Sonia Nava Salazar
- Department of Inmunobiochemistry, Instituto Nacional de Perinatologia, Mexico City, Mexico
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Menopause-Associated Lipid Metabolic Disorders and Foods Beneficial for Postmenopausal Women. Nutrients 2020; 12:nu12010202. [PMID: 31941004 PMCID: PMC7019719 DOI: 10.3390/nu12010202] [Citation(s) in RCA: 200] [Impact Index Per Article: 50.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/19/2019] [Accepted: 01/07/2020] [Indexed: 12/12/2022] Open
Abstract
Menopause is clinically diagnosed as a condition when a woman has not menstruated for one year. During the menopausal transition period, there is an emergence of various lipid metabolic disorders due to hormonal changes, such as decreased levels of estrogens and increased levels of circulating androgens; these may lead to the development of metabolic syndromes including cardiovascular diseases and type 2 diabetes. Dysregulation of lipid metabolism affects the body fat mass, fat-free mass, fatty acid metabolism, and various aspects of energy metabolism, such as basal metabolic ratio, adiposity, and obesity. Moreover, menopause is also associated with alterations in the levels of various lipids circulating in the blood, such as lipoproteins, apolipoproteins, low-density lipoproteins (LDLs), high-density lipoproteins (HDL) and triacylglycerol (TG). Alterations in lipid metabolism and excessive adipose tissue play a key role in the synthesis of excess fatty acids, adipocytokines, proinflammatory cytokines, and reactive oxygen species, which cause lipid peroxidation and result in the development of insulin resistance, abdominal adiposity, and dyslipidemia. This review discusses dietary recommendations and beneficial compounds, such as vitamin D, omega-3 fatty acids, antioxidants, phytochemicals—and their food sources—to aid the management of abnormal lipid metabolism in postmenopausal women.
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Therapeutic Effects of Topical 8-Oxo-2'-deoxyguanosine on Ethanol-Induced Ocular Chemical Injury Models. Cornea 2018; 37:1311-1317. [PMID: 29923862 DOI: 10.1097/ico.0000000000001671] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE To evaluate the therapeutic effects of topical 8-oxo-2'-deoxyguanosine (8-oxo-dG) on experimental ocular chemical injury models. METHODS We created ocular chemical injury models with 8-week-old BALB/c mice (n = 70) by applying 100% ethanol; the mice were then treated with 8-oxo-dG eye drops 10 and 5 mg/mL and phosphate-buffered saline (PBS) twice daily. After 7 days, clinical findings such as corneal integrity, clarity, and neovascularization were assessed. Histology, immunohistochemistry findings, and inflammatory cytokine levels using real-time polymerase chain reactions in the corneas of the mice were also analyzed. RESULTS Topical application of 8-oxo-dG eye drops resulted in a significant improvement of epithelial defects and clarity, dose dependently (each P < 0.001). Inflammatory cell infiltration and corneal stromal edema were also decreased in the 8-oxo-dG-treated mice compared with PBS-treated controls, based on hematoxylin and eosin staining. The expressions of F4/80 and neutrophil elastase-positive inflammatory cells and IL-1 and TNF-α cytokine levels were significantly reduced in the 8-oxo-dG group compared with the PBS group (each P < 0.01). CONCLUSIONS Topical 8-oxo-dG application showed an excellent therapeutic effect in ocular chemical injury models by suppressing inflammation.
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Abd El Aziz R, Fawzy MW, Khalil N, Abdel Atty S, Sabra Z. Vascular affection in relation to oxidative DNA damage in metabolic syndrome. Ther Adv Endocrinol Metab 2018; 9:43-51. [PMID: 29387333 PMCID: PMC5784468 DOI: 10.1177/2042018817750823] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Accepted: 11/28/2017] [Indexed: 02/06/2023] Open
Abstract
INTRODUCTION Obesity has become an important issue affecting both males and females. Obesity is now regarded as an independent risk factor for atherosclerosis-related diseases. Metabolic syndrome is associated with increased risk for development of cardiovascular disease. Urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine concentration has been used to express oxidation status. METHODS Twenty-seven obese patients with metabolic syndrome, 25 obese patients without metabolic syndrome and 31 healthy subjects were included in our study. They were subjected to full history and clinical examination; fasting blood sugar (FBS), 2 hour post prandial blood sugar (2HPP), lipid profile, urinary 8-oxo-7,8-dihydro-2'-deoxyguanosine and carotid duplex, A/B index and tibial diameters were all assessed. RESULTS There was a statistically significant difference (p = 0.027) in diameter of the right anterior tibial artery among the studied groups, with decreased diameter of the right anterior tibial artery in obese patients with metabolic syndrome compared to those without metabolic syndrome; the ankle brachial index revealed a lower index in obese patients with metabolic syndrome compared to those without metabolic syndrome. There was a statistically insignificant difference (p = 0.668) in the 8-oxodG in the studied groups. In obese patients with metabolic syndrome there was a positive correlation between 8-oxodG and total cholesterol and LDL. CONCLUSION Urinary 8-oxodG is correlated to total cholesterol and LDL in obese patients with metabolic syndrome; signifying its role in the mechanism of dyslipidemia in those patients. Our study highlights the importance of anterior tibial artery diameter measurement and ankle brachial index as an early marker of atherosclerosis, and how it may be an earlier marker than carotid intima-media thickness.
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Chernikov AV, Gudkov SV, Usacheva AM, Bruskov VI. Exogenous 8-oxo-7,8-dihydro-2′-deoxyguanosine: Biomedical properties, mechanisms of action, and therapeutic potential. BIOCHEMISTRY (MOSCOW) 2018. [DOI: 10.1134/s0006297917130089] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Huh JY, Jung I, Piao L, Ha H, Chung MH. 8-Hydroxy-2-deoxyguanosine ameliorates high-fat diet-induced insulin resistance and adipocyte dysfunction in mice. Biochem Biophys Res Commun 2017; 491:890-896. [DOI: 10.1016/j.bbrc.2017.07.132] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 07/24/2017] [Indexed: 02/04/2023]
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Nuclear abnormalities in buccal mucosa cells of patients with type I and II diabetes treated with folic acid. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2016; 797:1-8. [DOI: 10.1016/j.mrgentox.2015.12.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 12/04/2015] [Accepted: 12/14/2015] [Indexed: 02/06/2023]
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Vieira-Potter VJ. Inflammation and macrophage modulation in adipose tissues. Cell Microbiol 2014; 16:1484-92. [PMID: 25073615 DOI: 10.1111/cmi.12336] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Revised: 07/24/2014] [Accepted: 07/28/2014] [Indexed: 12/11/2022]
Abstract
The adipose tissue is an active endocrine organ that harbours not only mature and developing adipocytes but also a wide array of immune cells, including macrophages, a key immune cell in determining metabolic functionality. With adipose tissue expansion, M1 pro-inflammatory macrophage infiltration increases, activates other immune cells, and affects lipid trafficking and metabolism, in part via inhibiting mitochondrial function and increasing reactive oxygen species (ROS). The pro-inflammatory cytokines produced and released interfere with insulin signalling, while inhibiting M1 macrophage activation improves systemic insulin sensitivity. In healthy adipose tissue, M2 alternative macrophages predominate and associate with enhanced lipid handling and mitochondrial function, anti-inflammatory cytokine production, and inhibition of ROS. The sequence of events leading to macrophage infiltration and activation in adipose tissue remains incompletely understood but lipid handling of both macrophages and adipocytes appears to play a major role.
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Affiliation(s)
- Victoria J Vieira-Potter
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, 65211, USA
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