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Zou H, Pan KH, Wu L, Pan HY, Ding YH, Zheng MH. Addendum: Nasal NK/T cell lymphoma presents with long-term nasal blockage and fever: a rare case report and literature review. Oncotarget 2023; 14:946. [PMID: 38039411 PMCID: PMC10691816 DOI: 10.18632/oncotarget.28285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2023] Open
Affiliation(s)
- Hai Zou
- Department of Infection Diseases, Zhejiang Provincial People’s Hospital, Hangzhou, China
| | - Ke-Hua Pan
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liang Wu
- Department of Pathology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hong-Ying Pan
- Department of Infection Diseases, Zhejiang Provincial People’s Hospital, Hangzhou, China
| | - Ya-Hui Ding
- Department of Cardiovascular Medicine, Zhejiang Provincial People’s Hospital, Hangzhou, China
| | - Ming-Hua Zheng
- Department of Infection and Liver Diseases, Liver Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Hepatology, Wenzhou Medical University, Wenzhou, China
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Zou H, Pan KH, Pan HY, Huang DS, Zheng MH. Addendum: Cerebral hemorrhage due to tuberculosis meningitis: a rare case report and literature review. Oncotarget 2023; 14:656. [PMID: 37367490 DOI: 10.18632/oncotarget.28284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/28/2023] Open
Affiliation(s)
- Hai Zou
- Department of Infection Diseases, Zhejiang Provincial People's Hospital, Hangzhou, China
| | - Ke-Hua Pan
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hong-Ying Pan
- Department of Infection Diseases, Zhejiang Provincial People's Hospital, Hangzhou, China
| | - Dong-Sheng Huang
- Department of Hepatobiliary Surgery, Zhejiang Provincial People's Hospital, Hangzhou, China
| | - Ming-Hua Zheng
- Department of Infection and Liver Diseases, Liver Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Hepatology, Wenzhou Medical University, Wenzhou, China
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Gao F, Zheng KI, Yan HD, Sun QF, Pan KH, Wang TY, Chen YP, Targher G, Byrne CD, George J, Zheng MH. Association and Interaction Between Serum Interleukin-6 Levels and Metabolic Dysfunction-Associated Fatty Liver Disease in Patients With Severe Coronavirus Disease 2019. Front Endocrinol (Lausanne) 2021; 12:604100. [PMID: 33763027 PMCID: PMC7982673 DOI: 10.3389/fendo.2021.604100] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 01/11/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND AND AIM Circulating levels of interleukin (IL)-6, a well-known inflammatory cytokine, are often elevated in coronavirus disease-2019 (COVID-19). Elevated IL-6 levels are also observed in patients with metabolic dysfunction-associated fatty liver disease (MAFLD). Our study aimed to describe the association between circulating IL-6 levels and MAFLD at hospital admission with risk of severe COVID-19. METHODS A total of 167 patients with laboratory-confirmed COVID-19 from three Chinese hospitals were enrolled. Circulating levels of IL-2, IL-4, IL-6, IL-10, tumor necrosis factor (TNF)-α, and interferon (IFN)-γ were measured at admission. All patients were screened for fatty liver by computed tomography. Forty-six patients were diagnosed as MAFLD. RESULTS Patients with MAFLD (n = 46) had higher serum IL-6 levels (median 7.1 [interquartile range, 4.3-20.0] vs. 4.8 [2.6-11.6] pg/mL, p = 0.030) compared to their counterparts without MAFLD (n = 121). After adjustment for age and sex, patients with MAFLD had a ~2.6-fold higher risk of having severe COVID-19 than those without MAFLD. After adjustment for age, sex and metabolic co-morbidities, increased serum IL-6 levels remained associated with higher risk of severe COVID-19, especially among infected patients with MAFLD (adjusted-odds ratio 1.14, 95% CI 1.05-1.23; p = 0.002). There was a significant interaction effect between serum IL-6 levels and MAFLD for risk of severe COVID-19 (p for interaction = 0.008). CONCLUSIONS Patients with MAFLD and elevated serum IL-6 levels at admission are at higher risk for severe illness from COVID-19.
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Affiliation(s)
- Feng Gao
- Department of Gastroenterology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Kenneth I. Zheng
- MAFLD Research Center, Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hua-Dong Yan
- Department of Hepatology, Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Province, Hwamei Hospital, Ningbo No.2 Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Qing-Feng Sun
- Department of Infectious Diseases, Ruian People’s Hospital, Wenzhou, China
| | - Ke-Hua Pan
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ting-Yao Wang
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yong-Ping Chen
- MAFLD Research Center, Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Giovanni Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy
| | - Christopher D. Byrne
- Southampton National Institute for Health Research Biomedical Research Centre, University Hospital Southampton, Southampton General Hospital, Southampton, United Kingdom
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney, NSW, Australia
| | - Ming-Hua Zheng
- MAFLD Research Center, Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Institute of Hepatology, Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Diagnosis and Treatment for The Development of Chronic Liver Disease in Zhejiang Province, Wenzhou, China
- *Correspondence: Ming-Hua Zheng,
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Zhou YJ, Zheng KI, Wang XB, Yan HD, Sun QF, Pan KH, Wang TY, Ma HL, Chen YP, George J, Zheng MH. Younger patients with MAFLD are at increased risk of severe COVID-19 illness: A multicenter preliminary analysis. J Hepatol 2020; 73:719-721. [PMID: 32348790 PMCID: PMC7195041 DOI: 10.1016/j.jhep.2020.04.027] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 04/16/2020] [Accepted: 04/18/2020] [Indexed: 02/07/2023]
Affiliation(s)
- Yu-Jie Zhou
- MAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China,Division of Gastroenterology and Hepatology, Key Laboratory of Gastroenterology and Hepatology, Ministry of Health, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Kenneth I. Zheng
- MAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiao-Bo Wang
- Department of Critical Care Medicine, Wenzhou Central Hospital, Wenzhou, China
| | - Hua-Dong Yan
- Department of Hepatology, Key Laboratory of Diagnosis and Treatment of Digestive System Tumors of Zhejiang Province, Hwamei Hospital, Ningbo No.2 Hospital, University of Chinese Academy of Sciences, Ningbo, China
| | - Qing-Feng Sun
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou, China
| | - Ke-Hua Pan
- Department of Radiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ting-Yao Wang
- Department of Nephrology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hong-Lei Ma
- MAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yong-Ping Chen
- MAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney, Australia.
| | - Ming-Hua Zheng
- MAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China; Institute of Hepatology, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Diagnosis and Treatment for The Development of Chronic Liver Disease in Zhejiang Province, Wenzhou, China.
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Zeng QQ, Zheng KI, Chen J, Jiang ZH, Tian T, Wang XB, Ma HL, Pan KH, Yang YJ, Chen YP, Zheng MH. Radiomics-based model for accurately distinguishing between severe acute respiratory syndrome associated coronavirus 2 (SARS-CoV-2) and influenza A infected pneumonia. MedComm (Beijing) 2020; 1:240-248. [PMID: 32838396 PMCID: PMC7436469 DOI: 10.1002/mco2.14] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 05/30/2020] [Accepted: 06/02/2020] [Indexed: 12/14/2022] Open
Abstract
Clinicians have been faced with the challenge of differentiating between severe acute respiratory syndrome associated coronavirus 2 (SARS‐CoV‐2) infected pneumonia (NCP) and influenza A infected pneumonia (IAP), a seasonal disease that coincided with the outbreak. We aim to develop a machine‐learning algorithm based on radiomics to distinguish NCP from IAP by texture analysis based on computed tomography (CT) imaging. Forty‐one NCP and 37 IAP patients admitted from January to February 6, 2019 admitted to two hospitals in Wenzhou, China. All patients had undergone chest CT examination and blood routine tests prior to receiving medical treatment. NCP was diagnosed by real‐time RT‐PCR assays. Eight of 56 radiomic features extracted by LIFEx were selected by least absolute shrinkage and selection operator regression to develop a radiomics score and subsequently constructed into a nomogram to predict NCP with area under the operating characteristics curve of 0.87 (95% confidence interval: 0.77‐0.93). The nomogram also showed excellent calibration with Hosmer‐Lemeshow test yielding a nonsignificant statistic (P = .904). The novel nomogram may efficiently distinguish between NCP and IAP patients. The nomogram may be incorporated to existing diagnostic algorithm to effectively stratify suspected patients for SARS‐CoV‐2 pneumonia.
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Affiliation(s)
- Qi-Qiang Zeng
- Clinical Research Center The Second Affiliated Hospital of Wenzhou Medical University Wenzhou China
| | - Kenneth I Zheng
- NAFLD Research Center, Department of Hepatology The First Affiliated Hospital of Wenzhou Medical University Wenzhou China
| | - Jun Chen
- School of the First Clinical Medical Sciences Wenzhou Medical University Wenzhou China
| | - Zheng-Hao Jiang
- School of the First Clinical Medical Sciences Wenzhou Medical University Wenzhou China
| | - Tian Tian
- School of the First Clinical Medical Sciences Wenzhou Medical University Wenzhou China
| | - Xiao-Bo Wang
- Department of Critical Care Medicine Wenzhou Central Hospital Wenzhou China
| | - Hong-Lei Ma
- NAFLD Research Center, Department of Hepatology The First Affiliated Hospital of Wenzhou Medical University Wenzhou China
| | - Ke-Hua Pan
- Department of Radiology The First Affiliated Hospital of Wenzhou Medical University Wenzhou China
| | - Yun-Jun Yang
- Department of Radiology The First Affiliated Hospital of Wenzhou Medical University Wenzhou China
| | - Yong-Ping Chen
- NAFLD Research Center, Department of Hepatology The First Affiliated Hospital of Wenzhou Medical University Wenzhou China.,Institute of Hepatology Wenzhou Medical University Wenzhou China.,Key Laboratory of Diagnosis and Treatment for The Development of Chronic Liver Disease in Zhejiang Province Wenzhou China
| | - Ming-Hua Zheng
- NAFLD Research Center, Department of Hepatology The First Affiliated Hospital of Wenzhou Medical University Wenzhou China.,Institute of Hepatology Wenzhou Medical University Wenzhou China.,Key Laboratory of Diagnosis and Treatment for The Development of Chronic Liver Disease in Zhejiang Province Wenzhou China
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Targher G, Mantovani A, Byrne CD, Wang XB, Yan HD, Sun QF, Pan KH, Zheng KI, Chen YP, Eslam M, George J, Zheng MH. Risk of severe illness from COVID-19 in patients with metabolic dysfunction-associated fatty liver disease and increased fibrosis scores. Gut 2020; 69:1545-1547. [PMID: 32414813 DOI: 10.1136/gutjnl-2020-321611] [Citation(s) in RCA: 145] [Impact Index Per Article: 36.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/04/2020] [Accepted: 05/06/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Giovanni Targher
- Department of Medicine, Endocrinology and Metabolism, University of Verona, Verona, Veneto, Italy
| | - Alessandro Mantovani
- Department of Medicine, Endocrinology and Metabolism, University of Verona, Verona, Veneto, Italy
| | - Christopher D Byrne
- Southampton National Institute for Health Research Biomedical Research Centre, Southampton General Hospital, Southampton, Hampshire, UK
| | - Xiao-Bo Wang
- Department of Critical Care Medicine, Wenzhou Medical College First Affiliated Hospital, Wenzhou, Zhejiang, China
| | - Hua-Dong Yan
- Department of Hepatology, Ningbo No 2 Hospital, Ningbo, Zhejiang, China
| | - Qing-Feng Sun
- Department of Radiology, Wenzhou Medical University First Affiliated Hospital, Wenzhou, Zhejiang, China
| | - Ke-Hua Pan
- Department of Radiology, Wenzhou Medical University First Affiliated Hospital, Wenzhou, Zhejiang, China
| | - Kenneth I Zheng
- NAFLD Research Center, Department of Hepatology, Wenzhou Medical College First Affiliated Hospital, Wenzhou, Zhejiang, China
| | - Yong-Ping Chen
- Department of Infection and Liver Diseases, Liver Research Center, Wenzhou Medical College First Affiliated Hospital, Wenzhou, Zhejiang, China
| | - Mohammed Eslam
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - Ming-Hua Zheng
- NAFLD Research Center, Department of Hepatology, Wenzhou Medical College First Affiliated Hospital, Wenzhou, Zhejiang, China .,Institute of Hepatology, Wenzhou Medical University, Wenzhou, Zhejiang, China
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Gao F, Zheng KI, Wang XB, Sun QF, Pan KH, Wang TY, Chen YP, Targher G, Byrne CD, George J, Zheng MH. Obesity Is a Risk Factor for Greater COVID-19 Severity. Diabetes Care 2020; 43:e72-e74. [PMID: 32409499 DOI: 10.2337/dc20-0682] [Citation(s) in RCA: 246] [Impact Index Per Article: 61.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/08/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Feng Gao
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Kenneth I Zheng
- NAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiao-Bo Wang
- Department of Critical Care Medicine, Wenzhou Central Hospital, Wenzhou, China
| | - Qing-Feng Sun
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou, China
| | - Ke-Hua Pan
- Department of Radiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ting-Yao Wang
- Department of Nephrology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yong-Ping Chen
- NAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Giovanni Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, Verona, Italy
| | - Christopher D Byrne
- Southampton National Institute for Health Research Biomedical Research Centre, University Hospital Southampton, Southampton General Hospital, Southampton, U.K
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney, Australia
| | - Ming-Hua Zheng
- NAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China .,Institute of Hepatology, Wenzhou Medical University, Wenzhou, China.,Key Laboratory of Diagnosis and Treatment for The Development of Chronic Liver Disease in Zhejiang Province, Wenzhou, China
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Zheng KI, Gao F, Wang XB, Sun QF, Pan KH, Wang TY, Ma HL, Chen YP, Liu WY, George J, Zheng MH. Letter to the Editor: Obesity as a risk factor for greater severity of COVID-19 in patients with metabolic associated fatty liver disease. Metabolism 2020; 108:154244. [PMID: 32320741 PMCID: PMC7166301 DOI: 10.1016/j.metabol.2020.154244] [Citation(s) in RCA: 224] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/14/2020] [Accepted: 04/17/2020] [Indexed: 02/07/2023]
Affiliation(s)
- Kenneth I Zheng
- MAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Feng Gao
- Department of Gastroenterology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiao-Bo Wang
- Department of Critical Care Medicine, Wenzhou Central Hospital, Wenzhou, China
| | - Qing-Feng Sun
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou, China
| | - Ke-Hua Pan
- Department of Radiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ting-Yao Wang
- Department of Nephrology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Hong-Lei Ma
- MAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yong-Ping Chen
- MAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Wen-Yue Liu
- Department of Endocrinology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jacob George
- Storr Liver Centre, Westmead Institute for Medical Research, Westmead Hospital and University of Sydney, Sydney, Australia.
| | - Ming-Hua Zheng
- MAFLD Research Center, Department of Hepatology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China; Institute of Hepatology, Wenzhou Medical University, Wenzhou, China; Key Laboratory of Diagnosis and Treatment for The Development of Chronic Liver Disease in Zhejiang Province, Wenzhou, China.
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Jin XH, Zheng KI, Pan KH, Xie YP, Zheng MH. COVID-19 in a patient with chronic lymphocytic leukaemia. Lancet Haematol 2020; 7:e351-e352. [PMID: 32220344 PMCID: PMC7118537 DOI: 10.1016/s2352-3026(20)30074-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 03/06/2020] [Accepted: 03/06/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Xiang-Hong Jin
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Kenneth I Zheng
- Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ke-Hua Pan
- Department of Radiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yu-Peng Xie
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ming-Hua Zheng
- Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
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Affiliation(s)
- Ke-Hua Pan
- Department of Radiology, the First Affiliated Hospital of Wenzhou Medical University, Zhejiang, China
| | - Ming-Hua Zheng
- Department of Hepatology, Liver Research Center, the First Affiliated Hospital of Wenzhou Medical University
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Pan KH, Zheng MH. Axial T2 weighted magnetic resonance imaging of the male pelvis. BMJ 2014; 349:g4910. [PMID: 25092540 DOI: 10.1136/bmj.g4910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Ke-Hua Pan
- Department of Radiology, First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Ming-Hua Zheng
- Department of Infection and Liver Diseases, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Affiliation(s)
- Ke-Hua Pan
- Department of Radiology and Department of Infection and Liver Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Ming-Hua Zheng
- Department of Radiology and Department of Infection and Liver Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Huang J, Lih CJ, Pan KH, Cohen SN. Global analysis of growth phase responsive gene expression and regulation of antibiotic biosynthetic pathways in Streptomyces coelicolor using DNA microarrays. Genes Dev 2001; 15:3183-92. [PMID: 11731481 PMCID: PMC312833 DOI: 10.1101/gad.943401] [Citation(s) in RCA: 163] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The eubacterial species Streptomyces coelicolor proceeds through a complex growth cycle in which morphological differentiation/development is associated with a transition from primary to secondary metabolism and the production of antibiotics. We used DNA microarrays and mutational analysis to investigate the expression of individual genes and multigene antibiotic biosynthetic pathways during these events. We identified expression patterns in biosynthetic, regulatory, and ribosomal protein genes that were associated highly specifically with particular stages of development. A knowledge-based algorithm that correlates temporal changes in expression with chromosomal position identified groups of contiguous genes expressed at discrete stages of morphological development, inferred the boundaries of known antibiotic synthesis gene loci, and revealed novel physical clusters of coordinately regulated genes. Microarray analysis of RNA from cells mutated in genes regulating synthesis of the antibiotics actinorhodin (Act) and undecylprodigiosin (Red) identified proximate and distant sites that contain putative ABC transporter and two-component system genes expressed coordinately with genes of specific biosynthetic pathways and indicated the existence of two functionally and physically discrete regulons in the Red pathway.
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Affiliation(s)
- J Huang
- Department of Genetics, Stanford University School of Medicine, Stanford, California 94305, USA
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