1
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Arron HE, Marsh BD, Kell DB, Khan MA, Jaeger BR, Pretorius E. Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: the biology of a neglected disease. Front Immunol 2024; 15:1386607. [PMID: 38887284 PMCID: PMC11180809 DOI: 10.3389/fimmu.2024.1386607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 04/11/2024] [Indexed: 06/20/2024] Open
Abstract
Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) is a chronic, debilitating disease characterised by a wide range of symptoms that severely impact all aspects of life. Despite its significant prevalence, ME/CFS remains one of the most understudied and misunderstood conditions in modern medicine. ME/CFS lacks standardised diagnostic criteria owing to variations in both inclusion and exclusion criteria across different diagnostic guidelines, and furthermore, there are currently no effective treatments available. Moving beyond the traditional fragmented perspectives that have limited our understanding and management of the disease, our analysis of current information on ME/CFS represents a significant paradigm shift by synthesising the disease's multifactorial origins into a cohesive model. We discuss how ME/CFS emerges from an intricate web of genetic vulnerabilities and environmental triggers, notably viral infections, leading to a complex series of pathological responses including immune dysregulation, chronic inflammation, gut dysbiosis, and metabolic disturbances. This comprehensive model not only advances our understanding of ME/CFS's pathophysiology but also opens new avenues for research and potential therapeutic strategies. By integrating these disparate elements, our work emphasises the necessity of a holistic approach to diagnosing, researching, and treating ME/CFS, urging the scientific community to reconsider the disease's complexity and the multifaceted approach required for its study and management.
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Affiliation(s)
- Hayley E. Arron
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
| | - Benjamin D. Marsh
- MRCPCH Consultant Paediatric Neurodisability, Exeter, Devon, United Kingdom
| | - Douglas B. Kell
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
- The Novo Nordisk Foundation Centre for Biosustainability, Technical University of Denmark, Lyngby, Denmark
| | - M. Asad Khan
- Directorate of Respiratory Medicine, Manchester University Hospitals, Wythenshawe Hospital, Manchester, United Kingdom
| | - Beate R. Jaeger
- Long COVID department, Clinic St Georg, Bad Aibling, Germany
| | - Etheresia Pretorius
- Department of Physiological Sciences, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, United Kingdom
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2
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Hieber H, Pricoco R, Gerrer K, Heindrich C, Wiehler K, Mihatsch LL, Haegele M, Schindler D, Donath Q, Christa C, Grabbe A, Kircher A, Leone A, Mueller Y, Zietemann H, Freitag H, Sotzny F, Warlitz C, Stojanov S, Hattesohl DBR, Hausruckinger A, Mittelstrass K, Scheibenbogen C, Behrends U. The German Multicenter Registry for ME/CFS (MECFS-R). J Clin Med 2024; 13:3168. [PMID: 38892879 PMCID: PMC11172639 DOI: 10.3390/jcm13113168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 06/21/2024] Open
Abstract
Background: Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a debilitating multisystemic disease characterized by a complex, incompletely understood etiology. Methods: To facilitate future clinical and translational research, a multicenter German ME/CFS registry (MECFS-R) was established to collect comprehensive, longitudinal, clinical, epidemiological, and laboratory data from adults, adolescents, and children in a web-based multilayer-secured database. Results: Here, we present the research protocol and first results of a pilot cohort of 174 ME/CFS patients diagnosed at two specialized tertiary fatigue centers, including 130 (74.7%) adults (mean age 38.4; SD 12.6) and 43 (25.3%) pediatric patients (mean age 15.5; SD 4.2). A viral trigger was identified in 160/174 (92.0%) cases, with SARS-CoV-2 in almost half of them. Patients exhibited severe functional and social impairment, as reflected by a median Bell Score of 30.0 (IQR 30.0 to 40.0) and a poor health-related quality of life assessed with the Short Form-36 health survey, resulting in a mean score of 40.4 (SD 20.6) for physical function and 59.1 (SD 18.8) for mental health. Conclusions: The MECFS-R provides important clinical information on ME/CFS to research and healthcare institutions. Paired with a multicenter biobank, it facilitates research on pathogenesis, diagnostic markers, and treatment options. Trial registration: ClinicalTrials.gov NCT05778006.
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Affiliation(s)
- Hannah Hieber
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Rafael Pricoco
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
- Institute of Medical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Katrin Gerrer
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Cornelia Heindrich
- Institute of Medical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Katharina Wiehler
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Lorenz L. Mihatsch
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Matthias Haegele
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Daniela Schindler
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Quirin Donath
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Catharina Christa
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Annika Grabbe
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Alissa Kircher
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Ariane Leone
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Yvonne Mueller
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Hannah Zietemann
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Helma Freitag
- Institute of Medical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Franziska Sotzny
- Institute of Medical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
| | - Cordula Warlitz
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Silvia Stojanov
- MRI Chronic Fatigue Center for Young People (MCFC), Child and Adolescent Psychosomatics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany
| | | | - Anna Hausruckinger
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Kirstin Mittelstrass
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
| | - Carmen Scheibenbogen
- Institute of Medical Immunology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Augustenburger Platz 1, 13353 Berlin, Germany
- German Association for ME/CFS, 20146 Hamburg, Germany
| | - Uta Behrends
- MRI Chronic Fatigue Center for Young People (MCFC), Pediatrics, Children’s Hospital, TUM School of Medicine and Health, Technical University of Munich, 80333 Munich, Germany; (H.H.); (R.P.); (L.L.M.)
- German Association for ME/CFS, 20146 Hamburg, Germany
- German Center for Infection Research (DZIF), 81675 Munich, Germany
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3
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Pietrangelo T, Cagnin S, Bondi D, Santangelo C, Marramiero L, Purcaro C, Bonadio RS, Di Filippo ES, Mancinelli R, Fulle S, Verratti V, Cheng X. Myalgic encephalomyelitis/chronic fatigue syndrome from current evidence to new diagnostic perspectives through skeletal muscle and metabolic disturbances. Acta Physiol (Oxf) 2024; 240:e14122. [PMID: 38483046 DOI: 10.1111/apha.14122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/01/2024] [Accepted: 02/19/2024] [Indexed: 04/17/2024]
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a demanding medical condition for patients and society. It has raised much more public awareness after the COVID-19 pandemic since ME/CFS and long-COVID patients share many clinical symptoms such as debilitating chronic fatigue. However, unlike long COVID, the etiopathology of ME/CFS remains a mystery despite several decades' research. This review moves from pathophysiology of ME/CFS through the compelling evidence and most interesting hypotheses. It focuses on the pathophysiology of skeletal muscle by proposing the hypothesis that skeletal muscle tissue offers novel opportunities for diagnosis and treatment of this syndrome and that new evidence can help resolve the long-standing debate on terminology.
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Affiliation(s)
- Tiziana Pietrangelo
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
- IIM-Interuniversity Institute of Myology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Stefano Cagnin
- Department of Biology, University of Padua, Padova, Italy
- CIR-Myo Myology Center, University of Padua, Padova, Italy
| | - Danilo Bondi
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
- IIM-Interuniversity Institute of Myology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Carmen Santangelo
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
- IIM-Interuniversity Institute of Myology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Lorenzo Marramiero
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
- IIM-Interuniversity Institute of Myology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Cristina Purcaro
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
- IIM-Interuniversity Institute of Myology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | | | - Ester Sara Di Filippo
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
- IIM-Interuniversity Institute of Myology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Rosa Mancinelli
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
- IIM-Interuniversity Institute of Myology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Stefania Fulle
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
- IIM-Interuniversity Institute of Myology, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Vittore Verratti
- Department of Psychological, Health and Territorial Sciences, University "G. d'Annunzio" of Chieti-Pescara, Chieti, Italy
| | - Xuanhong Cheng
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
- Department of Materials Science and Engineering, Lehigh University, Bethlehem, Pennsylvania, USA
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4
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Chang YC, Liou JT, Peng YM, Chen GJ, Lin CY, Yang CA. Association of Long Noncoding RNA Expression Signatures with Stress-Induced Myocardial Perfusion Defects. Biomolecules 2023; 13:biom13050849. [PMID: 37238718 DOI: 10.3390/biom13050849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 05/01/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Stress-induced myocardial perfusion defects found in dipyridamole-thallium-201 single-photon emission computed tomography imaging may indicate vascular perfusion abnormalities and risk of obstructive or nonobstructive coronary heart disease. Besides nuclear imaging and subsequent coronary angiography (CAG), no blood test can indicate whether dysregulated homeostasis is associated with stress-induced myocardial perfusion defects. This study investigated the expression signature of long noncoding RNAs (lncRNAs) and genes involved in vascular inflammation and stress response in the blood of patients with stress-induced myocardial perfusion abnormalities (n = 27). The results revealed an expression signature consisting of the upregulation of RMRP (p < 0.01) and downregulations of THRIL (p < 0.01) and HIF1A (p < 0.01) among patients with a positive thallium stress test and no significant coronary artery stenosis within 6 months after baseline treatment. We developed a scoring system based on the expression signatures of RMRP, MIAT, NTT, MALAT1, HSPA1A, and NLRP3 to predict the need for further CAG among patients with moderate-to-significant stress-induced myocardial perfusion defects (area under the receiver operating characteristic curve = 0.963). Therefore, we identified a dysregulated expression profile of lncRNA-based genes in the blood that could be valuable for the early detection of vascular homeostasis imbalance and personalized therapy.
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Affiliation(s)
- Yu-Chieh Chang
- Division of Nuclear Medicine, China Medical University Hsinchu Hospital, Zhubei City 302, Taiwan
| | - Jun-Ting Liou
- Division of Cardiology, China Medical University Hsinchu Hospital, Zhubei City 302, Taiwan
| | - Yu-Min Peng
- Integrated Precision Health and Immunodiagnostic Center, Department of Laboratory Medicine, China Medical University Hsinchu Hospital, Zhubei City 302, Taiwan
| | - Guan-Jun Chen
- Integrated Precision Health and Immunodiagnostic Center, Department of Laboratory Medicine, China Medical University Hsinchu Hospital, Zhubei City 302, Taiwan
| | - Chien-Yu Lin
- Integrated Precision Health and Immunodiagnostic Center, Department of Laboratory Medicine, China Medical University Hsinchu Hospital, Zhubei City 302, Taiwan
| | - Chin-An Yang
- Integrated Precision Health and Immunodiagnostic Center, Department of Laboratory Medicine, China Medical University Hsinchu Hospital, Zhubei City 302, Taiwan
- College of Medicine, China Medical University, Taichung 404, Taiwan
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu City 300, Taiwan
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5
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Yao H, Jiang X, Fu H, Yang Y, Jin Q, Zhang W, Cao W, Gao W, Wang S, Zhu Y, Ying J, Tian L, Chen G, Tong Z, Qi J, Zhou S. Exploration of the Immune-Related Long Noncoding RNA Prognostic Signature and Inflammatory Microenvironment for Cervical Cancer. Front Pharmacol 2022; 13:870221. [PMID: 35662687 PMCID: PMC9161697 DOI: 10.3389/fphar.2022.870221] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/22/2022] [Indexed: 12/18/2022] Open
Abstract
Purpose: Our research developed immune-related long noncoding RNAs (lncRNAs) for risk stratification in cervical cancer (CC) and explored factors of prognosis, inflammatory microenvironment infiltrates, and chemotherapeutic therapies. Methods: The RNA-seq data and clinical information of CC were collected from the TCGA TARGET GTEx database and the TCGA database. lncRNAs and immune-related signatures were obtained from the GENCODE database and the ImPort database, respectively. We screened out immune-related lncRNA signatures through univariate Cox, LASSO, and multivariate Cox regression methods. We established an immune-related risk model of hub immune-related lncRNAs to evaluate whether the risk score was an independent prognostic predictor. The xCell and CIBERSORTx algorithms were employed to appraise the value of risk scores which are in competition with tumor-infiltrating immune cell abundances. The estimation of tumor immunotherapy response through the TIDE algorithm and prediction of innovative recommended medications on the target to immune-related risk model were also performed on the basis of the IC50 predictor. Results: We successfully established six immune-related lncRNAs (AC006126.4, EGFR-AS1, RP4-647J21.1, LINC00925, EMX2OS, and BZRAP1-AS1) to carry out prognostic prediction of CC. The immune-related risk model was constructed in which we observed that high-risk groups were strongly linked with poor survival outcomes. Risk scores varied with clinicopathological parameters and the tumor stage and were an independent hazard factor that affect prognosis of CC. The xCell algorithm revealed that hub immune-related signatures were relevant to immune cells, especially mast cells, DCs, megakaryocytes, memory B cells, NK cells, and Th1 cells. The CIBERSORTx algorithm revealed an inflammatory microenvironment where naive B cells (p < 0.01), activated dendritic cells (p < 0.05), activated mast cells (p < 0.0001), CD8+ T cells (p < 0.001), and regulatory T cells (p < 0.01) were significantly lower in the high-risk group, while macrophages M0 (p < 0.001), macrophages M2 (p < 0.05), resting mast cells (p < 0.0001), and neutrophils (p < 0.01) were highly conferred. The result of TIDE indicated that the number of immunotherapy responders in the low-risk group (124/137) increased significantly (p = 0.00000022) compared to the high-risk group (94/137), suggesting that the immunotherapy response of CC patients was completely negatively correlated with the risk scores. Last, we compared differential IC50 predictive values in high- and low-risk groups, and 12 compounds were identified as future treatments for CC patients. Conclusion: In this study, six immune-related lncRNAs were suggested to predict the outcome of CC, which is beneficial to the formulation of immunotherapy.
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Affiliation(s)
- Hui Yao
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Xiya Jiang
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Hengtao Fu
- Department of Pharmacy, North China University of Science and Technology, Tangshan, China
| | - Yinting Yang
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Qinqin Jin
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Weiyu Zhang
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Wujun Cao
- Department of Clinical Laboratory, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Wei Gao
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Senlin Wang
- Department of Clinical Laboratory, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Yuting Zhu
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Jie Ying
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Lu Tian
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Guo Chen
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
| | - Zhuting Tong
- Department of Radiation Oncology, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jian Qi
- Anhui Province Key Laboratory of Medical Physics and Technology, Center of Medical Physics and Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China
| | - Shuguang Zhou
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China.,Department of Gynecology, Anhui Province Maternity and Child Healthcare Hospital, Hefei, China
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6
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Deumer US, Varesi A, Floris V, Savioli G, Mantovani E, López-Carrasco P, Rosati GM, Prasad S, Ricevuti G. Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): An Overview. J Clin Med 2021; 10:jcm10204786. [PMID: 34682909 PMCID: PMC8538807 DOI: 10.3390/jcm10204786] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/12/2021] [Accepted: 10/15/2021] [Indexed: 12/20/2022] Open
Abstract
Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a chronic systemic disease that manifests via various symptoms such as chronic fatigue, post-exertional malaise, and cognitive impairment described as “brain fog”. These symptoms often prevent patients from keeping up their pre-disease onset lifestyle, as extended periods of physical or mental activity become almost impossible. However, the disease presents heterogeneously with varying severity across patients. Therefore, consensus criteria have been designed to provide a diagnosis based on symptoms. To date, no biomarker-based tests or diagnoses are available, since the molecular changes observed also largely differ from patient to patient. In this review, we discuss the infectious, genetic, and hormonal components that may be involved in CFS pathogenesis, we scrutinize the role of gut microbiota in disease progression, we highlight the potential of non-coding RNA (ncRNA) for the development of diagnostic tools and briefly mention the possibility of SARS-CoV-2 infection causing CFS.
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Affiliation(s)
- Undine-Sophie Deumer
- Department of Biological Sciences, Faculty of Natural Sciences and Mathematics, University of Cologne, 50674 Cologne, Germany;
| | - Angelica Varesi
- Department of Biology and Biotechnology, University of Pavia, 27100 Pavia, Italy
- Almo Collegio Borromeo, 27100 Pavia, Italy
- Correspondence: (A.V.); (G.R.)
| | - Valentina Floris
- Department of Internal Medicine and Therapeutics, University of Pavia, 27100 Pavia, Italy;
| | - Gabriele Savioli
- Emergency Department, IRCCS Policlinico San Matteo, 27100 Pavia, Italy;
| | - Elisa Mantovani
- Department of Neurosciences, Biomedicine and Movement Sciences, Neurology Section, University of Verona, 37129 Verona, Italy;
| | - Paulina López-Carrasco
- División de Neurociencias, Instituto de Fisiología Celular, Universidad Nacional Autónoma de México (UNAM), Mexico City 04510, Mexico;
| | | | - Sakshi Prasad
- National Pirogov Memorial Medical University, 21018 Vinnytsya, Ukraine;
| | - Giovanni Ricevuti
- School of Pharmacy, Department of Drug Sciences, University of Pavia, 27100 Pavia, Italy
- Correspondence: (A.V.); (G.R.)
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7
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Chang YS, Lee YT, Yen JC, Chang YC, Lin LL, Chan WL, Chang WC, Lin SY, Chang JG. Long Noncoding RNA NTT Context-Dependently Regulates MYB by Interacting With Activated Complex in Hepatocellular Carcinoma Cells. Front Oncol 2021; 11:592045. [PMID: 34616668 PMCID: PMC8488295 DOI: 10.3389/fonc.2021.592045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 08/09/2021] [Indexed: 01/10/2023] Open
Abstract
Background Long noncoding RNA (lncRNA) mediates the pathogenesis of various diseases, including cancer and cardiovascular, infectious, and metabolic diseases. This study examined the role of lncRNA NTT in the development and progression of cancer. Methods The expression of NTT was determined using tissues containing complementary DNA (cDNA) from patients with liver, lung, kidney, oral, and colon cancers. The expression of cis-acting genes adjacent to the NTT locus (CTGF, STX7, MYB, BCLAF1, IFNGR1, TNFAIP3, and HIVEP2) was also assessed. We used knockdown and chromatin immunoprecipitation (ChIP) assays to identify the cis-acting genes that interact with NTT. Results NTT was most significantly downregulated in hepatocellular carcinoma (HCC), while a higher NTT level correlated with a shorter survival time of patients with HCC. Multivariate analysis indicated NTT was not an independent predictor for overall survival. MYB was significantly upregulated, and its increased expression was associated with dismal survival in HCC patients, similar to the results for NTT. NTT knockdown significantly decreased cellular migration. ChIP of HCC cell lines revealed that NTT is regulated by the transcription factor ATF3 and binds to the MYB promoter via the activated complex. Additionally, when NTT was knocked down, the expression of MYB target genes such as Bcl-xL, cyclinD1, and VEGF was also downregulated. NTT could play a positive or negative regulator for MYB with a context-dependent manner in both HCC tissues and animal model. Conclusion Our study suggests that NTT plays a key role in HCC progression via MYB-regulated target genes and may serve as a novel therapeutic target.
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Affiliation(s)
- Ya-Sian Chang
- Epigenome Research Center, China Medical University Hospital, Taichung, Taiwan.,Center for Precision Medicine, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan
| | - Ya-Ting Lee
- Epigenome Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Ju-Chen Yen
- Epigenome Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Yuli C Chang
- Epigenome Research Center, China Medical University Hospital, Taichung, Taiwan
| | - Li-Li Lin
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Wen-Ling Chan
- Department of Bioinformatics and Medical Engineering, Asia University, Taichung, Taiwan
| | - Wei-Chiao Chang
- Department of Clinical Pharmacy, School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
| | - Shyr-Yi Lin
- Division of Gastroenterology, Department of Internal Medicine, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of General Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Jan-Gowth Chang
- Epigenome Research Center, China Medical University Hospital, Taichung, Taiwan.,Center for Precision Medicine, China Medical University Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan
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8
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Chen H, Pan Y, Jin X, Chen G. Identification of a Four Hypoxia-Associated Long Non-Coding RNA Signature and Establishment of a Nomogram Predicting Prognosis of Clear Cell Renal Cell Carcinoma. Front Oncol 2021; 11:713346. [PMID: 34386428 PMCID: PMC8353455 DOI: 10.3389/fonc.2021.713346] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/09/2021] [Indexed: 12/21/2022] Open
Abstract
To identify novel hypoxia-associated long non-coding RNAs (lncRNAs) as potential biomarkers, we developed a risk stratification signature and constructed a prognosis prediction nomogram of clear cell renal cell carcinoma (ccRCC). Hypoxia-related lncRNAs were identified through Pearson correlation analysis between the expression profiles of hypoxia-related differentially expressed genes and lncRNAs from The Cancer Genome Atlas Kidney Renal Clear Cell Carcinoma (TCGA-KIRC) dataset. Then, a signature of four key lncRNAs (COMETT, EMX2OS, AC026462.3, and HAGLR) was developed. The four lncRNAs were downregulated in high-grade, advanced stage, and high-risk ccRCC. The signature had an independent and long-standing prognosis prediction ability up to a 10-year follow-up. Notably, the risk score was significantly positively correlated with the infiltration abundances of six immune cells from the Tumor IMmune Estimation Resource (TIMER). The gene set enrichment analysis (GSEA) also suggested that the signature was involved in metabolism and tumorigenesis, which were closely related to the hypoxic tumor microenvironment. Ultimately, a nomogram of signature, age, stage, and grade, was built to predict the individual long-term survival possibility. Finally, the expressions of four lncRNAs were validated by quantitative real-time PCR (qRT-PCR). Our study identified a four-lncRNA signature and established a prognostic nomogram that reliably predicts survival in ccRCC. The findings may be beneficial to therapeutic customization and medical decision-making.
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Affiliation(s)
- Hualin Chen
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yang Pan
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoxiang Jin
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Gang Chen
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Study on the Relationship between the miRNA-centered ceRNA Regulatory Network and Fatigue. J Mol Neurosci 2021; 71:1967-1974. [PMID: 33993410 PMCID: PMC8500871 DOI: 10.1007/s12031-021-01845-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 04/13/2021] [Indexed: 10/25/2022]
Abstract
In recent years, the incidence of fatigue has been increasing, and the effective prevention and treatment of fatigue has become an urgent problem. As a result, the genetic research of fatigue has become a hot spot. Transcriptome-level regulation is the key link in the gene regulatory network. The transcriptome includes messenger RNAs (mRNAs) and noncoding RNAs (ncRNAs). MRNAs are common research targets in gene expression profiling. Noncoding RNAs, including miRNAs, lncRNAs, circRNAs and so on, have been developed rapidly. Studies have shown that miRNAs are closely related to the occurrence and development of fatigue. MiRNAs can regulate the immune inflammatory reaction in the central nervous system (CNS), regulate the transmission of nerve impulses and gene expression, regulate brain development and brain function, and participate in the occurrence and development of fatigue by regulating mitochondrial function and energy metabolism. LncRNAs can regulate dopaminergic neurons to participate in the occurrence and development of fatigue. This has certain value in the diagnosis of chronic fatigue syndrome (CFS). CircRNAs can participate in the occurrence and development of fatigue by regulating the NF-κB pathway, TNF-α and IL-1β. The ceRNA hypothesis posits that in addition to the function of miRNAs in unidirectional regulation, mRNAs, lncRNAs and circRNAs can regulate gene expression by competitive binding with miRNAs, forming a ceRNA regulatory network with miRNAs. Therefore, we suggest that the miRNA-centered ceRNA regulatory network is closely related to fatigue. At present, there are few studies on fatigue-related ncRNA genes, and most of these limited studies are on miRNAs in ncRNAs. However, there are a few studies on the relationship between lncRNAs, cirRNAs and fatigue. Less research is available on the pathogenesis of fatigue based on the ceRNA regulatory network. Therefore, exploring the complex mechanism of fatigue based on the ceRNA regulatory network is of great significance. In this review, we summarize the relationship between miRNAs, lncRNAs and circRNAs in ncRNAs and fatigue, and focus on exploring the regulatory role of the miRNA-centered ceRNA regulatory network in the occurrence and development of fatigue, in order to gain a comprehensive, in-depth and new understanding of the essence of the fatigue gene regulatory network.
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10
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Wirth KJ, Scheibenbogen C. Pathophysiology of skeletal muscle disturbances in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). J Transl Med 2021; 19:162. [PMID: 33882940 PMCID: PMC8058748 DOI: 10.1186/s12967-021-02833-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Accepted: 04/13/2021] [Indexed: 12/14/2022] Open
Abstract
Chronic Fatigue Syndrome or Myalgic Encephaloymelitis (ME/CFS) is a frequent debilitating disease with an enigmatic etiology. The finding of autoantibodies against ß2-adrenergic receptors (ß2AdR) prompted us to hypothesize that ß2AdR dysfunction is of critical importance in the pathophysiology of ME/CFS. Our hypothesis published previously considers ME/CFS as a disease caused by a dysfunctional autonomic nervous system (ANS) system: sympathetic overactivity in the presence of vascular dysregulation by ß2AdR dysfunction causes predominance of vasoconstrictor influences in brain and skeletal muscles, which in the latter is opposed by the metabolically stimulated release of endogenous vasodilators (functional sympatholysis). An enigmatic bioenergetic disturbance in skeletal muscle strongly contributes to this release. Excessive generation of these vasodilators with algesic properties and spillover into the systemic circulation could explain hypovolemia, suppression of renin (paradoxon) and the enigmatic symptoms. In this hypothesis paper the mechanisms underlying the energetic disturbance in muscles will be explained and merged with the first hypothesis. The key information is that ß2AdR also stimulates the Na+/K+-ATPase in skeletal muscles. Appropriate muscular perfusion as well as function of the Na+/K+-ATPase determine muscle fatigability. We presume that dysfunction of the ß2AdR also leads to an insufficient stimulation of the Na+/K+-ATPase causing sodium overload which reverses the transport direction of the sodium-calcium exchanger (NCX) to import calcium instead of exporting it as is also known from the ischemia-reperfusion paradigm. The ensuing calcium overload affects the mitochondria, cytoplasmatic metabolism and the endothelium which further worsens the energetic situation (vicious circle) to explain postexertional malaise, exercise intolerance and chronification. Reduced Na+/K+-ATPase activity is not the only cause for cellular sodium loading. In poor energetic situations increased proton production raises intracellular sodium via sodium-proton-exchanger subtype-1 (NHE1), the most important proton-extruder in skeletal muscle. Finally, sodium overload is due to diminished sodium outward transport and enhanced cellular sodium loading. As soon as this disturbance would have occurred in a severe manner the threshold for re-induction would be strongly lowered, mainly due to an upregulated NHE1, so that it could repeat at low levels of exercise, even by activities of everyday life, re-inducing mitochondrial, metabolic and vascular dysfunction to perpetuate the disease.
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Affiliation(s)
| | - Carmen Scheibenbogen
- Institute of Medical Immunology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.
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11
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Yang B, Liang RS, Wu XY, Lin YJ. LncRNA TUG1 inhibits neuronal apoptosis in status epilepticus rats via targeting the miR-421/mTOR axis. Cell Signal 2020; 76:109787. [PMID: 33007387 DOI: 10.1016/j.cellsig.2020.109787] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 09/18/2020] [Accepted: 09/18/2020] [Indexed: 02/07/2023]
Abstract
Status epilepticus (SE) induces apoptosis of hippocampal neurons. However, the underlying mechanism in SE is not fully understood. Recently, lncRNA TUG1 is reported as a significant mediator in neuronal development. In present study, we aimed to investigate whether lncRNA TUG1 induces apoptosis of hippocampal neurons in SE rat models. TUG1 expression in serum of normal volunteers and SE patients, SE rats and neurons with epileptiform discharge was detected. SE rat model was established and intervened with TUG1 to evaluate hippocampal neuronal apoptosis. The experiments in vitro were further performed in neurons with epileptiform discharge to verify the effects of TUG1 on neuronal apoptosis of SE rats. The downstream mechanism of TUG1 was predicted and verified. miR-421 was intervened to perform the rescue experiments. Levels of oxidative stress and inflammation-related factors and mTOR pathway-related proteins in SE rats and hippocampal neurons were detected. TUG1 was highly expressed in serum of SE patients, SE rats and neurons with epileptiform discharge. Inhibition of TUG1 relieved pathological injury, oxidative stress and inflammation and reduced neuronal apoptosis in SE rats, which were further verified in hippocampal neurons. TUG1 upregulated TIMP2 expression by targeting miR-421. Overexpressed miR-421 inhibited hippocampal neuronal apoptosis. TUG1 knockout inactivated the mTOR pathway via the miR-421/TIMP2 axis to relieve neuronal apoptosis, oxidative stress and inflammation in SE rats and hippocampal neurons. Taken together, these findings showed that downregulation of lncRNA TUG1 inhibited apoptosis of hippocampal neurons in SE rats, and attenuated oxidative stress and inflammation damage through regulating the miR-421/mTOR axis.
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Affiliation(s)
- Bin Yang
- Affiliated Union Hospital of Fujian Medical University, Department of Neurosurgery, Fuzhou, Fujian, China
| | - Ri-Sheng Liang
- Affiliated Union Hospital of Fujian Medical University, Department of Neurosurgery, Fuzhou, Fujian, China.
| | - Xi-Yao Wu
- Affiliated Union Hospital of Fujian Medical University, Department of Neurosurgery, Fuzhou, Fujian, China
| | - Yao-Jing Lin
- Affiliated Union Hospital of Fujian Medical University, Department of Neurosurgery, Fuzhou, Fujian, China
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Wang Z, Zhang C, Chang J, Tian X, Zhu C, Xu W. LncRNA EMX2OS, Regulated by TCF12, Interacts with FUS to Regulate the Proliferation, Migration and Invasion of Prostate Cancer Cells Through the cGMP-PKG Signaling Pathway. Onco Targets Ther 2020; 13:7045-7056. [PMID: 32801740 PMCID: PMC7398891 DOI: 10.2147/ott.s243552] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 06/11/2020] [Indexed: 12/21/2022] Open
Abstract
Background LncRNA EMX2OS (EMX2 opposite strand/antisense RNA) is notably downregulated in prostate cancer (PCa) tissues and may be regarded as a potential molecular biomarker for diagnosis and prognosis. However, its exact role in regulating the development of PCa is obscure. Methods The EMX2OS expression was assessed in PCa tissues, paracancer tissues, PCa cells and normal prostate epithelial cells by qPCR. Gain- and loss-of-function experiments were performed to investigate the role of EMX2OS and FUS in cGMP-PKG (cyclic guanosine monophosphate-dependent protein kinase)-mediated proliferation, invasion, and migration in human PCa cell lines DU145 and PC3. Then, the interaction of transcription factor 12 (TCF12) with EMX2OS promoter was confirmed by using the dual-luciferase reporter and chromatin immunoprecipitation (ChIP) assays. RNA binding protein immunoprecipitation and RNA pull-down assays were used to verify the interaction between EMX2OS and FUS protein. Finally, the role of EMX2OS and FUS in tumor growth in vivo was validated in a xenograft nude mouse model. Results TCF12 and EMX2OS were both downregulated in PCa tissues and cells, and they negatively regulated cell proliferation, migration and invasion, and activated cGMP-PKG pathway in DU145 and PC3 cells. TCF12 was a transcription factor of EMX2OS. TCF12 and EMX2OS overexpression both down-regulated cell proliferation, migration and invasion, and activated cGMP-PKG pathway in DU145 and PC3 cells. Furthermore, EMX2OS directly bound with FUS protein and had a synergy effect with FUS protein on cGMP-PKG-mediated cell functions, which could be suppressed by (D)-DT-2 (a cGMP-PKG inhibitor). In addition, the overexpression of FUS or EMX2OS individually markedly decreased the volume and weight of tumors in vivo, and co-overexpression of them further inhibited tumor growth. Conclusion EMX2OS, transcriptionally regulated by TCF12, played a synergy role with FUS protein in regulating the proliferation, migration and invasion of PCa cells by activating the cGMP-PKG pathway.
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Affiliation(s)
- Zhiqiang Wang
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Chaowei Zhang
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Junkai Chang
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Xin Tian
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Chaoyang Zhu
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
| | - Weibo Xu
- Department of Urinary Surgery, Huaihe Hospital of Henan University, Kaifeng 475000, People's Republic of China
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Mohyeldeen M, Ibrahim S, Shaker O, Helmy H. Serum expression and diagnostic potential of long non-coding RNAs NEAT1 and TUG1 in viral hepatitis C and viral hepatitis C-associated hepatocellular carcinoma. Clin Biochem 2020; 84:38-44. [PMID: 32526227 DOI: 10.1016/j.clinbiochem.2020.06.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/04/2020] [Accepted: 06/06/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND The present study investigated the serum detectability and the diagnostic implications of long non-coding RNAs; nuclear enriched abundant transcript 1 (NEAT1) and taurine upregulated gene 1 (TUG1) in viral hepatitis C (HCV) and HCV-associated hepatocellular carcinoma (HCC). METHODS The study included twenty healthy controls, forty non-malignant HCV patients and forty HCV-associated HCC patients. The study assessed liver function tests, the antioxidant status, serum alpha fetoprotein, p53, NEAT1 and TUG1. RESULTS Diminished serum expression of NEAT1 and TUG1 was observed in HCV and HCV-associated HCC and was closely associated with deregulated liver function and elevated AFP levels. A model of NEAT1, TUG1 and AFP accurately differentiated between HCC patients and healthy controls with sensitivity greater than that of AFP alone. Additionally, the diagnostic performance of a model of TUG1, p53 and AFP was superior to that of each marker alone for predicting HCC in HCV patients. CONCLUSION Significant alterations in the serum expression of NEAT1 and TUG1 in HCV and HCV-associated HCC patients were recorded. We propose NEAT1 and TUG1 as non-invasive, cost-effective and complementary biomarkers that improve the diagnostic characteristics of AFP.
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Affiliation(s)
- Mai Mohyeldeen
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Safinaz Ibrahim
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Olfat Shaker
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Hebatullah Helmy
- Biochemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
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14
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In Silico Analysis Identifies Differently Expressed lncRNAs as Novel Biomarkers for the Prognosis of Thyroid Cancer. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2020; 2020:3651051. [PMID: 32377223 PMCID: PMC7195652 DOI: 10.1155/2020/3651051] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/24/2020] [Indexed: 02/06/2023]
Abstract
Background Thyroid cancer (TC) is one of the most common type of endocrine tumors. Long noncoding RNAs had been demonstrated to play key roles in TC. Material and Methods. The lncRNA expression data were downloaded from Co-lncRNA database. The raw data was normalized using the limma package in R software version 3.3.0. The differentially expressed mRNA and lncRNAs were identified by the linear models for the microarray analysis (Limma) method. The DEGs were obtained with thresholds of ∣logFC∣ > 1.5 and P < 0.001. The hierarchical cluster analysis of differentially expressed mRNAs and lncRNAs was performed using CLUSTER 3.0, and the hierarchical clustering heat map was visualized by Tree View. Results In the present study, we identified 6 upregulated and 85 downregulated lncRNAs in TC samples. Moreover, we for the first time identified 16 downregulated lncRNAs was correlated to longer disease-free survival time in patients with TC, including ATP1A1-AS1, CATIP-AS1, FAM13A-AS1, LINC00641, LINC00924, MIR22HG, NDUFA6-AS1, RP11-175K6.1, RP11-727A23.5, RP11-774O3.3, RP13-895J2.2, SDCBP2-AS1, SLC26A4-AS1, SNHG15, SRP14-AS1, and ZNF674-AS1. Conclusions Bioinformatics analysis revealed these lncRNAs were involved in regulating the RNA metabolic process, cell migration, organelle assembly, tRNA modification, and hormone levels. This study will provide useful information to explore the potential candidate biomarkers for diagnosis, prognosis, and drug targets for TC.
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Wirth K, Scheibenbogen C. A Unifying Hypothesis of the Pathophysiology of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS): Recognitions from the finding of autoantibodies against ß2-adrenergic receptors. Autoimmun Rev 2020; 19:102527. [PMID: 32247028 DOI: 10.1016/j.autrev.2020.102527] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 01/16/2020] [Indexed: 12/14/2022]
Abstract
Myalgic Encephalomyelitis or Chronic Fatigue Syndrome (CFS/ME) is a complex and severely disabling disease with a prevalence of 0.3% and no approved treatment and therefore a very high medical need. Following an infectious onset patients suffer from severe central and muscle fatigue, chronic pain, cognitive impairment, and immune and autonomic dysfunction. Although the etiology of CFS/ME is not solved yet, there is numerous evidence for an autoantibody mediated dysregulation of the immune and autonomic nervous system. We found elevated ß2 adrenergic receptor (ß2AdR) and M3 acetylcholine receptor antibodies in a subset of CFS/ME patients. As both ß2AdR and M3 acetylcholine receptor are important vasodilators, we would expect their functional disturbance to result in vasoconstriction and hypoxemia. An impaired circulation and oxygen supply could result in many symptoms of ME/CFS. There are consistent reports of vascular dysfunction in ME/CFS. Muscular and cerebral hypoperfusion has been shown in ME/CFS in various studies and correlated with fatigue. Metabolic changes in ME/CFS are also in line with a concept of hypoxia and ischemia. Here we try to develop a unifying working concept for the complex pathomechanism of ME/CFS based on the presence of dysfunctional autoantibodies against ß2AdR and M3 acetylcholine receptor and extrapolate it to the pathophysiology of ME/CFS without an autoimmune pathogenesis.
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Affiliation(s)
- Klaus Wirth
- Sanofi-Aventis Deutschland, R&D, Frankfurt a.M., Germany.
| | - Carmen Scheibenbogen
- Institute for Medical Immunology, Charité University Medicine Berlin, Campus Virchow, Berlin, Germany.
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16
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Scherbakov N, Szklarski M, Hartwig J, Sotzny F, Lorenz S, Meyer A, Grabowski P, Doehner W, Scheibenbogen C. Peripheral endothelial dysfunction in myalgic encephalomyelitis/chronic fatigue syndrome. ESC Heart Fail 2020; 7:1064-1071. [PMID: 32154656 PMCID: PMC7261521 DOI: 10.1002/ehf2.12633] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/23/2019] [Accepted: 01/14/2020] [Indexed: 12/11/2022] Open
Abstract
AIMS Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a complex multisystem disease. Evidence for disturbed vascular regulation comes from various studies showing cerebral hypoperfusion and orthostatic intolerance. The peripheral endothelial dysfunction (ED) has not been sufficiently investigated in patients with ME/CFS. The aim of the present study was to examine peripheral endothelial function in patients with ME/CFS. METHODS AND RESULTS Thirty-five patients [median age 40 (range 18-70) years, mean body mass index 23.8 ± 4.2 kg/m2 , 31% male] with ME/CFS were studied for peripheral endothelial function assessed by peripheral arterial tonometry (EndoPAT2000). Clinical diagnosis of ME/CFS was based on Canadian Criteria. Nine of these patients with elevated antibodies against β2-adrenergic receptor underwent immunoadsorption, and endothelial function was measured at baseline and 3, 6, and 12 months follow-up. ED was defined by reactive hyperaemia index ≤1.81. Twenty healthy subjects of similar age and body mass index were used as a control group. Peripheral ED was found in 18 of 35 patients (51%) with ME/CFS and in 4 healthy subjects (20%, P < 0.05). Patients with ED, in contrast to patients with normal endothelial function, reported more severe disease according to Bell score (31 ± 12 vs. 40 ± 16, P = 0.04), as well as more severe fatigue-related symptoms (8.62 ± 0.87 vs. 7.75 ± 1.40, P = 0.04) including a higher demand for breaks [9.0 (interquartile range 7.0-10.0) vs. 7.5 (interquartile range 6.0-9.25), P = 0.04]. Peripheral ED showed correlations with more severe immune-associated symptoms (r = -0.41, P = 0.026), such as sore throat (r = -0.38, P = 0.038) and painful lymph nodes (r = -0.37, P = 0.042), as well as more severe disease according to Bell score (r = 0.41, P = 0.008) and symptom score (r = -0.59, P = 0.005). There were no differences between the patient group with ED and the patient group with normal endothelial function regarding demographic, metabolic, and laboratory parameters. Further, there was no difference in soluble vascular cell adhesion molecule and soluble intercellular adhesion molecule levels. At baseline, peripheral ED was observed in six patients who underwent immunoadsorption. After 12 months, endothelial function had improved in five of these six patients (reactive hyperaemia index 1.58 ± 0.15 vs. 2.02 ± 0.46, P = 0.06). CONCLUSIONS Peripheral ED is frequent in patients with ME/CFS and associated with disease severity and severity of immune symptoms. As ED is a risk factor for cardiovascular disease, it is important to elucidate if peripheral ED is associated with increased cardiovascular morbidity and mortality in ME/CFS.
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Affiliation(s)
- Nadja Scherbakov
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Augustenburger Platz 1, 13353, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Department of Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Center for Stroke Research Berlin (CSB), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Marvin Szklarski
- Institute of Medical Immunology, Campus Virchow, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Jelka Hartwig
- Institute of Medical Immunology, Campus Virchow, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Franziska Sotzny
- Institute of Medical Immunology, Campus Virchow, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Sebastian Lorenz
- Institute of Medical Immunology, Campus Virchow, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Antje Meyer
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Augustenburger Platz 1, 13353, Berlin, Germany.,Department of Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Center for Stroke Research Berlin (CSB), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Patricia Grabowski
- Institute of Medical Immunology, Campus Virchow, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Wolfram Doehner
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Augustenburger Platz 1, 13353, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), partner site Berlin, Berlin, Germany.,Department of Cardiology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Center for Stroke Research Berlin (CSB), Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Carmen Scheibenbogen
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), Augustenburger Platz 1, 13353, Berlin, Germany.,Institute of Medical Immunology, Campus Virchow, Charité - Universitätsmedizin Berlin, Berlin, Germany
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Tang Z, Wei G, Zhang L, Xu Z. Signature microRNAs and long noncoding RNAs in laryngeal cancer recurrence identified using a competing endogenous RNA network. Mol Med Rep 2019; 19:4806-4818. [PMID: 31059106 PMCID: PMC6522811 DOI: 10.3892/mmr.2019.10143] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 03/25/2019] [Indexed: 12/20/2022] Open
Abstract
The aim of the present study was to identify novel microRNA (miRNA) or long noncoding RNA (lncRNA) signatures of laryngeal cancer recurrence and to investigate the regulatory mechanisms associated with this malignancy. Datasets of recurrent and nonrecurrent laryngeal cancer samples were downloaded from The Cancer Genome Atlas (TCGA) and the Gene Expression Omnibus database (GSE27020 and GSE25727) to examine differentially expressed miRNAs (DE-miRs), lncRNAs (DE-lncRs) and mRNAs (DEGs). miRNA-mRNA and lncRNA-miRNA networks were constructed by investigating the associations among these RNAs in various databases. Subsequently, the interactions identified were combined into a competing endogenous RNA (ceRNA) regulatory network. Feature genes in the miRNA-mRNA network were identified via topological analysis and a recursive feature elimination algorithm. A support vector machine (SVM) classifier was established using the betweenness centrality values in the miRNA-mRNA network, consisting of 32 optimal feature-coding genes. The classification effect was tested using two validation datasets. Furthermore, coding genes in the ceRNA network were examined via pathway enrichment analyses. In total, 21 DE-lncRs, 507 DEGs and 55 DE-miRs were selected. The SVM classifier exhibited an accuracy of 94.05% (79/84) for sample classification prediction in the TCGA dataset, and 92.66 and 91.07% in the two validation datasets. The ceRNA regulatory network comprised 203 nodes, corresponding to mRNAs, miRNAs and lncRNAs, and 346 lines, corresponding to the interactions among RNAs. In particular, the interactions with the highest scores were HLA complex group 4 (HCG4)-miR-33b, HOX transcript antisense RNA (HOTAIR)-miR-1-MAGE family member A2 (MAGEA2), EMX2 opposite strand/antisense RNA (EMX2OS)-miR-124-calcitonin related polypeptide α (CALCA) and EMX2OS-miR-124-γ-aminobutyric acid type A receptor γ2 subunit (GABRG2). Gene enrichment analysis of the genes in the ceRNA network identified that 11 pathway terms and 16 molecular function terms were significantly enriched. The SVM classifier based on 32 feature coding genes exhibited high accuracy in the classification of laryngeal cancer samples. miR-1, miR-33b, miR-124, HOTAIR, HCG4 and EMX2OS may be novel biomarkers of recurrent laryngeal cancer, and HCG4-miR-33b, HOTAIR-miR-1-MAGEA2 and EMX2OS-miR-124-CALCA/GABRG2 may be associated with the molecular mechanisms regulating recurrent laryngeal cancer.
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Affiliation(s)
- Zhengyi Tang
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R China
| | - Ganguan Wei
- Department of Otolaryngology Head and Neck Surgery, 923 Hospital of People's Liberation Army, Nanning, Guangxi 530021, P.R China
| | - Longcheng Zhang
- Department of Otolaryngology Head and Neck Surgery, 923 Hospital of People's Liberation Army, Nanning, Guangxi 530021, P.R China
| | - Zhiwen Xu
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R China
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Mao Y, Dong L, Zheng Y, Dong J, Li X. Prediction of Recurrence in Cervical Cancer Using a Nine-lncRNA Signature. Front Genet 2019; 10:284. [PMID: 31001325 PMCID: PMC6456668 DOI: 10.3389/fgene.2019.00284] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 03/15/2019] [Indexed: 12/17/2022] Open
Abstract
Background and Objective As a common cancer type in women, cervical cancer remains one of the leading causes of cancer-associated mortalities word wide. Recent evidence has demonstrated the regulatory role of a large number of long non-coding RNAs (lncRNAs) in cervical cancer. Here, we aimed to identify new biomarkers that related with the recurrence through comprehensive bioinformatics analysis. Methods Firstly, we collected online lncRNA expression data of cervical cancer patients which were divided into training, validation, and test set. Then we developed a nine-lncRNA signature from training set by conducting LASSO Cox regression model along with 10-fold cross validation. The prognostic value of this risk score was validated in all the three sets using Kaplan–Meier analysis, C-index, time-dependent ROC curves and dynamic AUC. Biological function of these lncRNAs in cervical cancer cells were evaluated by performing gene ontology biological process enrichment and Kyoto Encyclopedia of Genes and Genomes signaling pathways analysis. Results According to the results, a higher predict accuracy was observed in the nine-lncRNA signature than that of FIGO stage in all the three sets. Stratified analysis also demonstrated that the nine-lncRNA signature can predict the recurrence of cervical cancer within FIGO stage. The potential mechanisms underlying the nine-lncRNAs from the signature were also identified according to the gene enrichment analysis. Conclusion In the present article, we provided a reliable prognostic tool to facilitate the individual management of patients with cervical cancer after treatment.
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Affiliation(s)
- Yu Mao
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Lixin Dong
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Yue Zheng
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Jing Dong
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
| | - Xin Li
- Department of Oncology, First Hospital of Qinhuangdao, Qinhuangdao, China
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19
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Epigenetic Components of Myalgic Encephalomyelitis/Chronic Fatigue Syndrome Uncover Potential Transposable Element Activation. Clin Ther 2019; 41:675-698. [PMID: 30910331 DOI: 10.1016/j.clinthera.2019.02.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 02/02/2019] [Accepted: 02/13/2019] [Indexed: 12/19/2022]
Abstract
PURPOSE Studies to determine epigenetic changes associated with myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) remain scarce; however, current evidence clearly shows that methylation patterns of genomic DNA and noncoding RNA profiles of immune cells differ between patients and healthy subjects, suggesting an active role of these epigenetic mechanisms in the disease. The present study compares and contrasts the available ME/CFS epigenetic data in an effort to evidence overlapping pathways capable of explaining at least some of the dysfunctional immune parameters linked to this disease. METHODS A systematic search of the literature evaluating the ME/CFS epigenome landscape was performed following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses criteria. Differential DNA methylation and noncoding RNA differential expression patterns associated with ME/CFS were used to screen for the presence of transposable elements using the Dfam browser, a search program nurtured with the Repbase repetitive sequence database and the RepeatMasker annotation tool. FINDINGS Unexpectedly, particular associations of transposable elements and ME/CFS epigenetic hallmarks were uncovered. A model for the disease emerged involving transcriptional induction of endogenous dormant transposons and structured cellular RNA interactions, triggering the activation of the innate immune system without a concomitant active infection. IMPLICATIONS Repetitive sequence filters (ie, RepeatMasker) should be avoided when analyzing transcriptomic data to assess the potential participation of repetitive sequences ("junk repetitive DNA"), representing >45% of the human genome, in the onset and evolution of ME/CFS. In addition, transposable element screenings aimed at designing cost-effective, focused empirical assays that can confirm or disprove the suspected involvement of transposon transcriptional activation in this disease, following the pilot strategy presented here, will require databases gathering large ME/CFS epigenetic datasets.
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20
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Tsai SY, Lin CL, Shih SC, Hsu CW, Leong KH, Kuo CF, Lio CF, Chen YT, Hung YJ, Shi L. Increased risk of chronic fatigue syndrome following burn injuries. J Transl Med 2018; 16:342. [PMID: 30518392 PMCID: PMC6282352 DOI: 10.1186/s12967-018-1713-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/30/2018] [Indexed: 02/02/2023] Open
Abstract
Background The overlapping symptoms and pathophysiological similarities between burn injury and chronic fatigue syndrome (CFS) are noteworthy. Thus, this study explores the possible association between burn injury and the subsequent risk of CFS. Method We used data from the Taiwan National Health Insurance system to address the research topic. The exposure cohort comprised of 17,204 patients with new diagnoses of burn injury. Each patient was frequency matched according to age, sex, index year, and comorbidities with four participants from the general population who did not have a history of CFS (control cohort). Cox proportional hazards regression analysis was conducted to estimate the relationship between burn injury and the risk of subsequent CFS. Result The incidence of CFS in the exposure and control cohorts was 1.61 and 0.86 per 1000 person-years, respectively. The exposure cohort had a significantly higher overall risk of subsequent CFS than did the control cohort (adjusted hazard ratio [HR] = 1.48, 95% confidence interval [CI] = 1.41–1.56). The risk of CFS in patients with burn injury in whichever stratification (including sex, age, and comorbidity) was also higher than that of the control cohort. Conclusion The findings from this population-based retrospective cohort study suggest that thermal injury is associated with an increased risk of subsequent CFS and provided a point of view suggesting burn injuries in sun- exposed areas such as the face and limbs had greater impact on subsequent development of CFS compared with trunk areas. In addition, extensively burned areas and visible scars were predictors of greater physiological and psychosocial that are needed to follow-up in the long run.
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Affiliation(s)
- Shin-Yi Tsai
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan. .,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan. .,Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, United States.
| | - Cheng-Li Lin
- College of Medicine, China Medical University, Taichung City, Taiwan.,Management Office for Health Data, China Medical University Hospital, Taichung City, Taiwan
| | - Shou-Chuan Shih
- Department of Medical Research, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Cheng-Wei Hsu
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan
| | - Kam-Hang Leong
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan
| | - Chien-Feng Kuo
- Institute of Infectious Disease, Mackay Memorial Hospital, Taipei, Taiwan
| | - Chon-Fu Lio
- Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan.,Centro Hospitalar Conde de Sao Januario, Macao, China
| | - Yu-Tien Chen
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan
| | - Yan-Jiun Hung
- Department of Laboratory Medicine, Mackay Memorial Hospital, Taipei, Taiwan.,Department of Medicine; Graduate Institute of Long-Term Care, Mackay Medical College, Taipei, Taiwan
| | - Leiyu Shi
- Department of Health Policy and Management, Johns Hopkins University Bloomberg School of Public Health, Baltimore, United States.
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