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Xu CJ, Lu PX, Li CH, He YL, Fang WJ, Xie RM, Jin GQ, Lu YB, Zheng QT, Zheng GP, Lv SX, Huang H, Li L, Ren M, Shi YX, Wen XN, Li L, Wei FJ, Hou DL, Lv Y, Shan F, Wu ZC, Hu ZL, Zhang XR, Liu DX, Shi WY, Li HR, Zhang N, Song M, Zhang X, Deng YY, Li J, Liu Q, Li D, Zhao L, Chen BD, Shi YB, Jiang FL, Tang X, Wu LJ, Ma W, Xu XY, Li HJ. Chinese expert consensus on imaging diagnosis of drug-resistant pulmonary tuberculosis. Quant Imaging Med Surg 2024; 14:1039-1060. [PMID: 38223121 PMCID: PMC10784038 DOI: 10.21037/qims-23-1223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 08/27/2023] [Accepted: 09/23/2023] [Indexed: 01/16/2024]
Abstract
Tuberculosis (TB) remains one of the major infectious diseases in the world with a high incidence rate. Drug-resistant tuberculosis (DR-TB) is a key and difficult challenge in the prevention and treatment of TB. Early, rapid, and accurate diagnosis of DR-TB is essential for selecting appropriate and personalized treatment and is an important means of reducing disease transmission and mortality. In recent years, imaging diagnosis of DR-TB has developed rapidly, but there is a lack of consistent understanding. To this end, the Infectious Disease Imaging Group, Infectious Disease Branch, Chinese Research Hospital Association; Infectious Diseases Group of Chinese Medical Association of Radiology; Digital Health Committee of China Association for the Promotion of Science and Technology Industrialization, and other organizations, formed a group of TB experts across China. The conglomerate then considered the Chinese and international diagnosis and treatment status of DR-TB, China's clinical practice, and evidence-based medicine on the methodological requirements of guidelines and standards. After repeated discussion, the expert consensus of imaging diagnosis of DR-PB was proposed. This consensus includes clinical diagnosis and classification of DR-TB, selection of etiology and imaging examination [mainly X-ray and computed tomography (CT)], imaging manifestations, diagnosis, and differential diagnosis. This expert consensus is expected to improve the understanding of the imaging changes of DR-TB, as a starting point for timely detection of suspected DR-TB patients, and can effectively improve the efficiency of clinical diagnosis and achieve the purpose of early diagnosis and treatment of DR-TB.
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Affiliation(s)
- Chuan-Jun Xu
- Department of Radiology, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Pu-Xuan Lu
- Department of Medical Imaging, Shenzhen Center for Chronic Disease Control, Shenzhen, China
| | - Chun-Hua Li
- Department of Radiology, Chongqing Public Health Medical Center, Chongqing, China
| | - Yu-Lin He
- Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wei-Jun Fang
- Department of Radiology, Guangzhou Chest Hospital, Guangzhou, China
| | - Ru-Ming Xie
- Department of Radiology, Beijing Ditan Hospital, Capital Medical University, Beijing, China
| | - Guan-Qiao Jin
- Department of Radiology, The Affiliated Cancer Hospital of Guangxi Medical University, Nanning, China
| | - Yi-Bo Lu
- Department of Radiology, The Fourth People’s Hospital of Nanning, Nanning, China
| | - Qiu-Ting Zheng
- Department of Medical Imaging, Shenzhen Center for Chronic Disease Control, Shenzhen, China
| | - Guang-Ping Zheng
- Department of Radiology, The Third People’s Hospital of Shenzhen, Shenzhen, China
| | - Sheng-Xiu Lv
- Department of Radiology, Chongqing Public Health Medical Center, Chongqing, China
| | - Hua Huang
- Department of Radiology, The Third People’s Hospital of Shenzhen, Shenzhen, China
| | - Li Li
- Department of Radiology, Beijing You’an Hospital, Capital Medical University, Beijing, China
| | - Meiji Ren
- Department of Radiology, Beijing You’an Hospital, Capital Medical University, Beijing, China
| | - Yu-Xin Shi
- Department of Radiology, Shanghai Public Health Clinical Center, Shanghai, China
| | - Xin-Nian Wen
- Department of Medical Imaging, Chest Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, China
| | - Lin Li
- Department of Radiology, Linyi People’s Hospital, Linyi, China
| | - Fang-Jun Wei
- Department of Radiology, The Third People’s Hospital of Shenzhen, Shenzhen, China
| | - Dai-Lun Hou
- Department of Medical Imaging, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Yan Lv
- Department of Medical Imaging, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Fei Shan
- Department of Radiology, Shanghai Public Health Clinical Center, Shanghai, China
| | - Zheng-Can Wu
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Zhi-Liang Hu
- Department of Infectious Disease, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Xiang-Rong Zhang
- Department of Pulmonary Tuberculosis, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Du-Xian Liu
- Department of Pathology, The Second Hospital of Nanjing, Nanjing, China
| | - Wei-Ya Shi
- Department of Radiology, Shanghai Public Health Clinical Center, Shanghai, China
| | - Hui-Ru Li
- Department of Radiology, Guangzhou Chest Hospital, Guangzhou, China
| | - Na Zhang
- Department of Radiology, Public Health and Clinical Center of Chengdu, Chengdu, China
| | - Min Song
- Department of Radiology, Guangzhou Chest Hospital, Guangzhou, China
| | - Xin Zhang
- Department of Medical Imaging, The Fourth People’s Hospital of Huai’an, Huai’an, China
| | - Ying-Ying Deng
- Department of Radiology, Shenzhen Yantian District People’s Hospital, Shenzhen, China
| | - Jinlong Li
- Department of Laboratory Medicine, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, China
| | - Qiang Liu
- Department of Radiology, Shandong Provincial Hospital, Shandong First Medical University, Jinan, China
| | - Dechun Li
- Department of Radiology, Xuzhou Central Hospital, Xuzhou, China
| | - Lingling Zhao
- Department of Radiology, The Sixth Peoples Hospital of Zhengzhou, Zhengzhou, China
| | - Bu-Dong Chen
- Medical Imaging Quality Research Committee, China Quality Association for Pharmaceuticals, Beijing, China
| | - Yan-Bin Shi
- Department of Radiology, The Sixth Peoples Hospital of Zhengzhou, Zhengzhou, China
| | - Feng-Li Jiang
- Department of Radiology, Zhejiang Cancer Hospital, Hangzhou, China
| | - Xin Tang
- Department of Radiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Li-Ji Wu
- Department of Imaging, Fourth Hospital of Inner Mongolia Autonomous, Hohhot, China
| | - Wei Ma
- Department of Radiology, The Third People’s Hospital of Longgang, Shenzhen, China
| | - Xin-Yue Xu
- The School of Radiation Medicine and Protection (SRMP) of Soochow University, Suzhou, China
| | - Hong-Jun Li
- Department of Radiology, Beijing You’an Hospital, Capital Medical University, Beijing, China
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Liu CY, Zhang XM, Yue HF, Shi YX. [The role of Müller cells in the formation and development of macular hole]. Zhonghua Yan Ke Za Zhi 2023; 59:948-953. [PMID: 37641407 DOI: 10.3760/cma.j.cn112142-20230627-00246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 08/31/2023]
Abstract
Müller cells are important glial cells in the retina, which play important roles in maintaining the stability of the retina by mechanical support, homeostasis, and physiological metabolism, as well as protecting photoreceptor cells and retinal pigment epithelial cells. The degeneration and destruction of Müller cells are often accompanied by various retinal diseases, and the function of Müller cells is changed under pathological conditions. Based on the summary of the morphology, distribution and function of Müller cells, this article analyzes the different manifestations and changes of Müller cells in different stages of macular hole and the closely related mechanisms, aiming to clarify the role of Müller cells in the formation and development of macular hole and to provide reference for the prediction of disease progression and guidance of treatment.(This article was published ahead of print on the official website of Chinese Journal of Ophthalmology on Augest 28, 2023).
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Affiliation(s)
- C Y Liu
- The First Clinical Medical College of Shanxi Medical University, Taiyuan 030001, China
| | - X M Zhang
- Shanxi Eye Hospital Affiliated to Shanxi Medical University, Taiyuan 030002, China
| | - H F Yue
- Shanxi Eye Hospital Affiliated to Shanxi Medical University, Taiyuan 030002, China
| | - Y X Shi
- The First Clinical Medical College of Shanxi Medical University, Taiyuan 030001, China
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Bao XD, Shi YX, Yu M, Liu SJ, Mi LH, Wu C, Hu WP. [Establishment of contralateral arteriovenous fistula by using the waste vein on the side of central venous lesion: a case report]. Zhonghua Gan Zang Bing Za Zhi 2023; 39:36-38. [PMID: 36776013 DOI: 10.3760/cma.j.cn441217-20220321-00342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Central venous lesion is a difficult problem in the vascular access complications of hemodialysis, which can cause serious clinical symptoms and affect the quality of hemodialysis and life of patients. We established arteriovenous fistula of the contralateral graft blood vessel with the used vein on the diseased side of the central vein of the patient. The arteriovenous fistula of the graft blood vessel was successfully punctured and hemodialysis was performed 2 weeks later. In this way, we not only solved the problem of venous hypertension and subsequent vascular access in the patient, but also reserved more vascular resources.
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Affiliation(s)
- X D Bao
- Department of Vascular Surgery, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Y X Shi
- Department of Vascular Surgery, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - M Yu
- Department of Vascular Surgery, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - S J Liu
- Department of Vascular Surgery, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - L H Mi
- Department of Vascular Surgery, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - C Wu
- Department of Vascular Surgery, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - W P Hu
- Department of Vascular Surgery, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
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Yan R, Guo SJ, An X, Jiang LJ, Liu TY, Xue T, Ma HL, Yao K, Shi YX, Han H. [Efficacy and safety of neoadjuvant toripalimab combined with nimotuzumab and chemotherapy in patients with unresectable stage Ⅳ squamous cell carcinoma of penis]. Zhonghua Wai Ke Za Zhi 2022; 60:1093-1099. [PMID: 36480877 DOI: 10.3760/cma.j.cn112139-20220509-00209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Objective: To compare the efficacy and safety of neoadjuvant chemotherapy alone or combined with toripalimab and nimotuzumab in patients with unresectable locally advanced or metastatic squamous cell carcinoma of penis. Methods: A total of 33 patients with unresectable squamous cell carcinoma of penis undergoing neoadjuvant chemotherapy alone or combined with toripalimab and nimotuzumab at Sun Yat-sen University Cancer Center from May 2015 to June 2021 were enrolled retrospectively. All the patients were male, with a median age (M(IQR))of 49.0 (13.5) years (range: 30 to 70 years). According to the therapy protocols, patients were divided into the chemotherapy group (16 cases) and the triple combination group (17 cases). Log-rank test was used to compare the progression-free survival and overall survival. χ2 test or Fisher exact method was used to compare the objective response rate, pathological down-stage rate and adverse events between these two groups. Results: The follow-up time was 28.1(19.2) months (range: 1.5 to 33.4 months). Patients of triple combination group were observed significantly longer progression-free survival (30.0 months vs. 8.2 months, χ²=3.998, P=0.046) than those of chemotherapy group. The median overall survival of the triple combination group and chemotherapy group were not reached and 15.2 months (χ²=3.298, P=0.069), respectively. Although there was no significant difference in the subsequent surgical resection rate between these two groups (12/17 vs.11/16, P=1), the objective response rate and the pathological complete response rate in triple combination group were significantly higher than in chemotherapy group (13/17 vs. 6/16, χ²=5.125, P=0.024; 6/7 vs. 0, P=0.001). The main common grade 1 to 2 adverse events in the triple combination group were alopecia (16 cases), anemia (15 cases), and nausea (14 cases). The main common grade 1 to 2 adverse events in the chemotherapy group were anemia (14 cases), alopecia (12 cases), decreased appetite (12 cases), and nausea (11 cases). The incidence of adverse events ≥grade 3 was similar in the triple combination group and chemotherapy group (8/17 vs. 6/16, χ²=0.308, P=0.579). There was no grade 3 adverse event in both groups. Conclusion: Compared with traditional chemotherapy alone, chemotherapy combined with toripalimab and nimotuzumab provides longer progression-free survival and similar toxicity for unresectable stage Ⅳ squamous cell carcinoma of penis.
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Affiliation(s)
- R Yan
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - S J Guo
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - X An
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - L J Jiang
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - T Y Liu
- Department of Experimental Research, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - T Xue
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - H L Ma
- Department of Radiology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - K Yao
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Y X Shi
- Department of Medical Oncology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - H Han
- Department of Urology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
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Shi YX, Sun ZW, Jia DL, Wang HB. Autophagy deficiency promotes lung metastasis of prostate cancer via stabilization of TWIST1. Clin Transl Oncol 2022; 24:1403-1412. [PMID: 35133601 DOI: 10.1007/s12094-022-02786-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 01/20/2022] [Indexed: 10/19/2022]
Abstract
PURPOSE The role of autophagy in prostate cancer metastasis remains controversial, and the effects of the autophagy-related gene ATG5 on prostate cancer metastasis are poorly understood. This study aims to explore the effects of ATG5 on prostate cancer metastasis and its molecular mechanism. METHODS The metastatic characteristics of LNCaP and DU145 cells were assessed by NOD/SCID mouse experiments, western blot, transwell assay, and wound-healing assay. Double membrane autophagic vesicle observation and the adenovirus-expressing mCherry-GFP-LC3B fusion protein were used to assess the autophagic characteristics of LNCaP and DU145 cells. The role of p62 in the accumulation of TWIST1 was confirmed by western blot under different conditions. The lentivirus particles of shATG5, NOD/SCID mice experiments, western blot, transwell assay, and wound-healing assay were used to confirm the role of ATG5 in TWIST1 accumulation and prostate cancer cell metastasis. RESULTS We identified a stabilizing effect of p62 on TWIST1 in the autophagic regulation of EMT and prostate cancer metastasis. The loss of ATG5 in DU145 cells resulted in autophagy deficiency and p62 accumulation, which stabilized TWIST1 and increased the TWIST1 level in prostate cancer cells, and eventually promoted EMT and metastasis. In comparison, LNCaP cells with regular ATG5 expression and autophagy status retained remarkable epithelial cell characteristics and had limited metastatic characteristics. Similar results were also found in wild-type LNCaP cells and LNCaP cells with stable ATG5 interference. CONCLUSIONS Our research revealed ATG5-mediated autophagy as a key mechanism that controls the metastasis of prostate cancer by regulating p62 abundance and TWIST1 stabilization.
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Affiliation(s)
- Y X Shi
- Department of Orthopaedics, Affiliated Hospital of Jining Medical University, No. 129 Hehua Road, Jining, Shandong, China.,Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, No. 89 Guhuai Road, Jining, Shandong, China
| | - Z W Sun
- Institute of Life Sciences, Chongqing Medical University, No. 1 Yixue Yuan Road, Chongqing, China
| | - D L Jia
- Department of Orthopaedics, Affiliated Hospital of Jining Medical University, No. 129 Hehua Road, Jining, Shandong, China.,Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, No. 89 Guhuai Road, Jining, Shandong, China
| | - H B Wang
- Department of Orthopaedics, Affiliated Hospital of Jining Medical University, No. 129 Hehua Road, Jining, Shandong, China. .,Department of Laboratory Medicine, Affiliated Hospital of Jining Medical University, No. 89 Guhuai Road, Jining, Shandong, China.
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Wang JJ, Feng Y, Cao S, Shi YX, Yang XJ, Li CT. [Skin chondroma of neck in children: report of a case]. Zhonghua Bing Li Xue Za Zhi 2022; 51:570-572. [PMID: 35673737 DOI: 10.3760/cma.j.cn112151-20211124-00858] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- J J Wang
- Department of Pathology and Pathophysiology, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China Department of Pathology, the First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Y Feng
- Department of Pathology, the First Hospital of Lanzhou University, Lanzhou 730000, China
| | - S Cao
- Department of Pathology, the First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Y X Shi
- Department of Pathology and Pathophysiology, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China Department of Pathology, the First Hospital of Lanzhou University, Lanzhou 730000, China
| | - X J Yang
- Department of Pathology and Pathophysiology, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China Department of Pathology, the First Hospital of Lanzhou University, Lanzhou 730000, China
| | - C T Li
- Department of Pathology and Pathophysiology, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China
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Chen BH, Shi NN, Wu CW, An DA, Shi YX, Wesemann LD, Hu J, Xu JR, Shan F, Wu LM. Early cardiac involvement in patients with acute COVID-19 infection identified by multiparametric cardiovascular magnetic resonance imaging. Eur Heart J Cardiovasc Imaging 2021; 22:844-851. [PMID: 33686389 PMCID: PMC7989521 DOI: 10.1093/ehjci/jeab042] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 02/26/2021] [Indexed: 01/19/2023] Open
Abstract
Aims In order to determine acute cardiac involvement in patients with COVID-19, we quantitatively evaluated tissue characteristics and mechanics by non-invasive cardiac magnetic resonance (CMR) in a cohort of patients within the first 10 days of the onset of COVID symptoms. Methods and results Twenty-five patients with reverse transcription polymerase chain reaction confirmed COVID-19 and at least one marker of cardiac involvement [cardiac symptoms, abnormal electrocardiograph (ECG), or abnormal cardiac biomarkers] and 25 healthy age- and gender-matched control subjects were recruited to the study. Patients were divided into those with elevated (n = 8) or normal TnI (n = 17). There were significant differences in global longitudinal strain among patients who were positive and negative for hs-TnI, and controls [−12.3 (−13.3, −11.5)%, −13.1 (−14.2, −9.8)%, and −15.7 (−18.3, −12.7)%, P = 0.004]. Native myocardial T1 relaxation times in patients with positive and negative hs-TnI manifestation (1169.8 ± 12.9 and 1113.2 ± 31.2 ms) were significantly higher than the normal (1065 ± 57 ms) subjects, respectively (P < 0.001). The extracellular volume (ECV) of patients who were positive and negative for hs-TnI was higher than that of the normal controls [32 (31, 33)%, 29 (27, 30)%, and 26 (24, 27.5)%, P < 0.001]. In our study, quantitative T2 mapping in patients who were positive and negative for hs-TnI [51 (47.9, 52.8) and 48 (47, 49.4) ms] was significantly higher than the normal [42 (41, 45.2) ms] subjects (P < 0.001). Conclusion In patients with early-stage COVID-19, myocardial oedema, and functional abnormalities are a frequent finding, while irreversible regional injury such as necrosis may be infrequent.
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Affiliation(s)
- Bing-Hua Chen
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Nan-Nan Shi
- Department of Radiology, Shanghai Public Health Clinical Center, Shanghai 201508, China
| | - Chong-Wen Wu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Dong-Aolei An
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yu-Xin Shi
- Department of Radiology, Shanghai Public Health Clinical Center, Shanghai 201508, China
| | - Luke D Wesemann
- Department of Radiology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Jiani Hu
- Department of Radiology, School of Medicine, Wayne State University, Detroit, MI 48201, USA
| | - Jian-Rong Xu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Fei Shan
- Department of Radiology, Shanghai Public Health Clinical Center, Shanghai 201508, China
| | - Lian-Ming Wu
- Department of Radiology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
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Shi WY, Hu SP, Zhang HL, Liu TF, Zhou S, Tang YH, Zhang XL, Shi YX, Zhang ZY, Xiong N, Shan F. Differential Diagnosis of COVID-19 Pneumonia From Influenza A (H1N1) Pneumonia Using a Model Based on Clinicoradiologic Features. Front Med (Lausanne) 2021; 8:651556. [PMID: 34211983 PMCID: PMC8240873 DOI: 10.3389/fmed.2021.651556] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/10/2021] [Accepted: 04/26/2021] [Indexed: 12/15/2022] Open
Abstract
Objectives: Both coronavirus disease 2019 (COVID-19) pneumonia and influenza A (H1N1) pneumonia are highly contagious diseases. We aimed to characterize initial computed tomography (CT) and clinical features and to develop a model for differentiating COVID-19 pneumonia from H1N1 pneumonia. Methods: In total, we enrolled 291 patients with COVID-19 pneumonia from January 20 to February 13, 2020, and 97 patients with H1N1 pneumonia from May 24, 2009, to January 29, 2010 from two hospitals. Patients were randomly grouped into a primary cohort and a validation cohort using a seven-to-three ratio, and their clinicoradiologic data on admission were compared. The clinicoradiologic features were optimized by the least absolute shrinkage and selection operator (LASSO) logistic regression analysis to generate a model for differential diagnosis. Receiver operating characteristic (ROC) curves were plotted for assessing the performance of the model in the primary and validation cohorts. Results: The COVID-19 pneumonia mainly presented a peripheral distribution pattern (262/291, 90.0%); in contrast, H1N1 pneumonia most commonly presented a peribronchovascular distribution pattern (52/97, 53.6%). In LASSO logistic regression, peripheral distribution patterns, older age, low-grade fever, and slightly elevated aspartate aminotransferase (AST) were associated with COVID-19 pneumonia, whereas, a peribronchovascular distribution pattern, centrilobular nodule or tree-in-bud sign, consolidation, bronchial wall thickening or bronchiectasis, younger age, hyperpyrexia, and a higher level of AST were associated with H1N1 pneumonia. For the primary and validation cohorts, the LASSO model containing above eight clinicoradiologic features yielded an area under curve (AUC) of 0.963 and 0.943, with sensitivity of 89.7 and 86.2%, specificity of 89.7 and 89.7%, and accuracy of 89.7 and 87.1%, respectively. Conclusions: Combination of distribution pattern and category of pulmonary opacity on chest CT with clinical features facilitates the differentiation of COVID-19 pneumonia from H1N1 pneumonia.
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Affiliation(s)
- Wei-Ya Shi
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Shao-Ping Hu
- Department of Radiology, Wuhan Union Red Cross Hospital, Wuhan, China
| | - Hao-Ling Zhang
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tie-Fu Liu
- Department of Scientific Research, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Su Zhou
- Department of Interventional Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Yu-Hong Tang
- Department of Research and Development, Winning Health Technology Group Co., Ltd., Shanghai, China
| | - Xin-Lei Zhang
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Yu-Xin Shi
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Zhi-Yong Zhang
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Nian Xiong
- Department of Radiology, Wuhan Union Red Cross Hospital, Wuhan, China
| | - Fei Shan
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
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Li J, Zou ZX, Hao CJ, Shi YX, Sui YB. Comparison between diagnostic value of SPECT whole-body bone imaging and magnetic resonance imaging in bone metastasis of prostate cancer. J BIOL REG HOMEOS AG 2021; 35:275-281. [PMID: 33565295 DOI: 10.23812/20-363-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J Li
- Department of Medical Image, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Z X Zou
- Department of Medical Image, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - C J Hao
- Department of Medical Image, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Y X Shi
- Department of Medical Image, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Y B Sui
- Department of Medical Image, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
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Shi YX, Zhang ZJ, Shen LJ. [Research progress of autoantibodies in primary biliary cholangitis]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:175-178. [PMID: 33685089 DOI: 10.3760/cma.j.cn501113-20190323-00093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Primary biliary cholangitis (PBC) is a chronic, progressive, intrahepatic cholestasis disease. Its occurrence and development are accompanied by changes in the titer of autoantibodies. However, its pathogenesis, extent of autoantibody changes and their effects are not yet fully understood. Therefore, there is a lack of effective methods for early diagnosis of PBC in patients. Finding specific PBC autoantibody markers will greatly improve the diagnostic efficiency and save early treatment time, thereby improving therapeutic effect and prognosis. This article summarizes several PBC-related serum autoantibody markers.
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Affiliation(s)
- Y X Shi
- Department of Pathological and Pathological Physiology, School of Basic Sciences of Kunming Medical University, Kunming 650500, China School of Medicine of Henan Polytechnic University, Jiaozuo 450000, China
| | - Z J Zhang
- Kunming Medical University Haiyuan College, Kunming 650500, China
| | - L J Shen
- Department of Pathological and Pathological Physiology, School of Basic Sciences of Kunming Medical University, Kunming 650500, China
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Xia W, Wang SS, Hu H, Zhao FL, Xu F, Hong RX, Jiang KK, Yuan ZY, Shi YX, Zhao K, Huang JJ, Xue C, Bi XW, Lu QY, An X, Zhang JM. [Cost-effectiveness of primary prophylaxis with PEG-rhG-CSF in early-stage breast cancer patients receiving chemotherapy in China]. Zhonghua Zhong Liu Za Zhi 2020; 42:861-867. [PMID: 33113628 DOI: 10.3760/cma.j.cn112152-20200616-00565] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the cost effectiveness of primary prophylaxis (PP) with pegylated recombinant human granulocyte colony stimulating factor (PEG-rhG-CSF), PP with recombinant human granulocyte colony stimulating factor (rhG-CSF) and no prophylaxis in women with early-stage breast cancer in China. Methods: Two phase Markov models were constructed for a hypothetical cohort of patients aged 45 with stage Ⅱ breast cancer. The first phase modelled costs and outcomes of 4 cycles docetaxel combined with cyclophosphamide [TC×4, febrile neutropenia (FN) risk>20%] chemotherapy, which assumptions based on literature reviews, including FN rates [base-case (deterministic sensitivity analysis range), 0.29 (0.24-0.35)] and related events [FN case-fatality, 3.4 (2.7-4.1)]. Second phase modelled the long term survival which was link with the relative dose intensity (RDI) [mortality hazard ratio (HR) of RDI < 85% vs ≥85%, 1.45 (1.00-2.32)]. Clinical effectiveness, therapeutic costs, and economic utilities were estimated from peer-reviewed publications and expert opinions in case of unavailability of published evidences. Results: Compared to rhG-CSF PP and no prophylaxis, the cost of PEG-rhG-CSF PP increased to 5 208.19 RMB and 5 222.73 RMB, respectively. The quality-adjusted life-years (QALYs) enhanced to 0.066 and 0.297, respectively. Accordingly, the incremental cost effectiveness ratios (ICERs) are 79 146.3 RMB and 17 558.77 RMB per QALY, which were both below the willingness to pay (WTP) threshold of three times GDP per capita (18, 000 RMB) recommended by the WHO. Sensitivity analysis suggested that the more clinically effective the primary prophylaxis with PEG-rhG-CSF is, the more cost-effective primary prophylaxis with PEG-rhG-CSF will be. And the lower the mortality HR of RDI<85% vs ≥85% is, the more cost-effective primary prophylaxis with PEG-rhG-CSF will be. Conclusion: Although the cost of PP PEG-rhG-CSF is higher, considering the additional benefits, the administrating of PP PEG-rhG-CSF is likely to be a cost-effective alternative to PP rhG-CSF and no prophylaxis in patients with early stage breast cancer whose FN risks are more than 20% in China.
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Affiliation(s)
- W Xia
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - S S Wang
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - H Hu
- China National Health Development Research Center, Beijing 100044, China
| | - F L Zhao
- School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, The University of Newcastle, Callaghan 2308, Australia
| | - F Xu
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - R X Hong
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - K K Jiang
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Z Y Yuan
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Y X Shi
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - K Zhao
- China National Health Development Research Center, Beijing 100044, China
| | - J J Huang
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - C Xue
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - X W Bi
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - Q Y Lu
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - X An
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - J M Zhang
- Department of Oncology, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
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Yang BS, Liu LX, Yuan M, Hou YB, Li QT, Zhou S, Shi YX, Gao BL. Multiple imaging modality-guided radiofrequency ablation combined with transarterial chemoembolization for hepatocellular carcinoma in special locations. ACTA ACUST UNITED AC 2020; 26:131-139. [PMID: 32071022 DOI: 10.5152/dir.2019.18540] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
PURPOSE We aimed to evaluate the safety and effectiveness of radiofrequency ablation (RFA) combined with transarterial chemoembolization (TACE) guided by multiple imaging modalities for hepatocellular carcinomas (HCCs) in special (i.e., high-risk or unfavorable) locations compared with those in conventional locations. METHODS A total of 122 HCC patients were enrolled, including 85 patients (69.7%) with HCC in conventional locations and 37 (30.3%) with HCC in special locations. The clinical data, overall survival (OS), progression-free survival (PFS), and procedure-related adverse events were analyzed. RESULTS RFA combined with TACE was successfully performed in all patients. Three complications (2.5%) occurred, with no significant difference between the conventional (n=1, 1.2%) and special (n=2, 5.4%) locations (P = 0.218). Complete tumor necrosis rate was not significantly different between the conventional (n=73, 85.9%) and special (n=34, 91.9%) locations at one-month imaging (P = 0.353). After a follow-up of 3-48 months, the PFS was 17 months for patients with HCC in conventional locations and 14 months for patients with HCC in special locations; one-year PFS rate was 68.1% in the conventional location group, not significantly (P = 0.741) different from 59.1% in the special location group. The OS was 28 months in the conventional location group while 32 months in the special location group. The cumulative one- and two-year OS rates were 89.9% and 63.3%, respectively, in the conventional location group, not significantly different from 96.3% and 65% in the special location group (P = 0.273). Age (P = 0.043) and tumor size (P < 0.001) were significant prognostic factors for OS, and tumor size (P < 0.001) was the only significant prognostic factor for PFS. CONCLUSION RFA guided by multiple imaging modalities combined with TACE may be safe and effective for treating HCCs in special locations.
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Affiliation(s)
- Bo-Shuai Yang
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Ling-Xiao Liu
- Department of Interventional Radiology, Zhongshan Hospital, Fudan University, Shanghai, China;Shanghai Institute of Medical Imaging, Shanghai, China
| | - Min Yuan
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China;Shanghai Institute of Medical Imaging, Shanghai, China
| | - Yi-Bin Hou
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Qing-Tao Li
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Su Zhou
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Yu-Xin Shi
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
| | - Bu-Lang Gao
- Shanghai Public Health Clinical Center, Fudan University, Shanghai, China
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Shi YX, Tian H. [Clinical outcomes with cruciate-substituting ultra-congruent and posterior stabilized in total knee arthroplasty]. Zhonghua Yi Xue Za Zhi 2019; 99:680-684. [PMID: 30831617 DOI: 10.3760/cma.j.issn.0376-2491.2019.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate clinical outcomes of total knee arthroplasty with ultra-congruent insert(UC) or posterior stability insert (PS). Methods: A retrospective study was performed on 97 patients (17 males, 80 females, 119 knees) with knee osteoarthritis who received total knee arthroplasty. Of the patients, 42 cases (50 knees) received UC protheses and 55 cases (69 knees) received PS protheses in total knee arthroplasty by the same surgeon in Peking University Third Hospital from March 2015 to November 2015. The data including age, gender, body mass index (BMI), range of motion (ROM), Western Ontario and McMaster Universities (WOMAC) osteoarthritis index and Hospital for Special Surgery Knee Score (HSS) before and after the surgery were collected and compared in the two groups. The data were compared between the two groups by single-sample t test. Results: There was no significant differences in age, gender, BMI, ROM, HHS and WOMAC scores between the two groups before operation(all P>0.05). At 3 months and 2 years of follow-up, ROM, HSS and WOMAC scores were significantly improved in the two groups(all P<0.05), but there was no statistical difference between the two groups(t=-0.303, -1.593, Z=-0.500, all P>0.05). One patient with PS prosthesis recieved revision surgery due to prothesis loosening; and no complication found in the UC group(χ(2)=0.731, P>0.05). Conclusion: There is no obvious difference between PS and UC in TKA, UC insert seems to be a practical alternative to the PS.
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Affiliation(s)
- Y X Shi
- Peking University Health Science Center, Beijing 100191, China
| | - H Tian
- Department of Joint Surgery, Peking University Third Hospital, Beijing 100191, China
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Li XQ, Xia S, Ji JS, Tang YH, Zheng MZ, Li YM, Shan F, Lu ZY, Wang J, Liu JK, Zhang HJ, Shi YX, Li HJ. Comparison and Correlation of Magnetic Resonance Imaging and Clinical Severity in Nonhuman Immunodeficiency Virus Patients with Cryptococcal Infection of Central Nervous System. Chin Med J (Engl) 2018; 131:2930-2937. [PMID: 30539905 PMCID: PMC6302650 DOI: 10.4103/0366-6999.247201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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] [Indexed: 11/08/2022] Open
Abstract
Background: The incidence of cryptococcal meningitis among immunocompetent patients increases, especially in China and imaging plays an important role. The current study was to find the correlation between magnetic resonance imaging (MRI) manifestation and clinical severity in nonhuman immunodeficiency virus patients with cryptococcal infection of central nervous system (CNS). Methods: A total of 65 patients with CNS cryptococcal infection from August 2014 to October 2016 were retrospectively included in this study. All the patients had MRI data and clinical data. The patients were divided into two groups according to whether the patients were confirmed with identifiable underlying disease. Comparison and correlation of MRI and clinical data in both groups were investigated using independent sample t-test, Chi-square test, Mann-Whitney test and Spearman rank correlation analysis. Results: In all 65 patients, 41 cases (41/65, 63.1%; Group 1) had normal immunity and 24 cases (24/65, 36.9%; Group 2) had at least one identifiable underlying disease. Fever, higher percentage of neutrophil (NEUT) in white blood cell (WBC), and increased cell number of cerebral spawell correlated with the number of cells andil fluid (CSF) were much common in patients with underlying disease (Group 1 vs. Group 2: Fever: 21/41 vs. 21/24, χ2 = 8.715, P = 0.003; NEUT in WBC: 73.15% vs. 79.60%, Z = −2.370, P = 0.018; cell number of CSF: 19 vs. 200, Z = −4.298, P < 0.001; respectively). Compared to the patients with normal immunity, the lesions are more common in the basal ganglia among patients with identifiable underlying disease (Group 1 vs. Group 2: 20/41 vs. 20/24, χ2 = 7.636, P = 0.006). The number of the involved brain areas in patients with identifiable underlying disease were well correlated with the number of cells and pressure of CSF (r = −0.472, P = 0.031; r = 0.779, P = 0.039; respectively). Conclusions: With the increased number of the involved brain areas in patients with identifiable underlying disease, the body has lower immunity against the organism which might result in higher intracranial pressure and more severe clinical status.
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Affiliation(s)
- Xue-Qin Li
- Department of Radiology, Beijing Youan Hospital Affiliated to Capital Medical University, Beijing 100069, China
| | - Shuang Xia
- Department of Radiology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Jian-Song Ji
- Department of Radiology, Lishui Municipal Central Hospital, The Fifth Affiliated Hospital of Wenzhou Medical University, Zhejiang University Lishui Hospital, Lishui, Zhejiang 323000, China
| | - Yong-Hua Tang
- Department of Radiology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200020, China
| | - Mei-Zhu Zheng
- Department of Radiology, Tianjin Third Central Hospital, Tianjin 300170, China
| | - Yong-Mei Li
- Department of Radiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - Fei Shan
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Zhi-Yan Lu
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Jian Wang
- Department of Imaging Center, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830054, China
| | - Jin-Kang Liu
- Department of Radiology, Xiangya Hospital Affiliated of Central South University, Changsha, Hunan 410013, China
| | - Hui-Juan Zhang
- Department of Radiology, Shengli Clinical Medical College of Fujian Medical University, FuJian Provincial Hospital South Branth, Fuzhou, Fujian 350004, China
| | - Yu-Xin Shi
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, China
| | - Hong-Jun Li
- Department of Radiology, Beijing Youan Hospital Affiliated to Capital Medical University, Beijing 100069, China
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Song FX, Zhou J, Zhou JJ, Shi YX, Zeng MS, Zhang ZY, Lv P, Sheng RF. The diagnosis of coronary plaque stability by multi-slice computed tomography coronary angiography. J Thorac Dis 2018; 10:2365-2376. [PMID: 29850142 DOI: 10.21037/jtd.2018.04.43] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background Coronary computed tomographic angiography is a robust non-invasive method to assess coronary artery disease (CAD) and analyze coronary plaque stability, especially for the non-calcified plaques. The aim of this study was to investigate the differential characteristics between the unstable coronary plaques and the stable coronary plaques using multi-slice computed tomography (MSCT). Methods Sixty patients with coronary heart disease (37 unstable plaques and 31 stable plaques) were included. The napkin ring thickness, napkin-ring sign, plaque CT attenuation and degree of lumen stenosis were retrospectively analyzed. The diagnostic performances of MSCT were determined to predict the unstable plaques. The difference was statistically significant if P<0.05. Results The napkin ring thickness of the unstable plaques was thinner than that of the stable plaques (P<0.05). The napkin-ring sign was more frequently observed in the unstable group (89.2%) than the stable group (22.6%, P<0.05). The average CT value of the unstable plaques (26.8±17.8 HU) was lower than that of the stable plaques (68.5±25.5 HU, P<0.05). The unstable plaques had more severe lumen stenosis or occlusion (70.3%) than the stable plaques (41.9%, P<0.05). The measurable napkin ring thickness of the plaques with a cutoff value of 0.8 mm and an accuracy of 89.5% was one independent factor to predict unstable plaques. The optimal combined threshold of the napkin-ring sign and/or the plaque CT value of 53 HU with an accuracy of 80.9% was to predict unstable plaques. Conclusions The optimal combined threshold of the napkin-ring sign and/or the plaque CT value ≤53 HU may be a good indicator to predict the unstable plaques in patients with CAD. The subgroup of measurable napkin ring thickness of the non-calcified plaques may also be an independent factor to predict the unstable plaques in patients with CAD.
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Affiliation(s)
- Feng-Xiang Song
- Department of Radiology, Shanghai Public Health Clinical Center, Shanghai 201508, China
| | - Jun Zhou
- Department of Nuclear Medicine, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jian-Jun Zhou
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yu-Xin Shi
- Department of Radiology, Shanghai Public Health Clinical Center, Shanghai 201508, China
| | - Meng-Su Zeng
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Zhi-Yong Zhang
- Department of Radiology, Shanghai Public Health Clinical Center, Shanghai 201508, China
| | - Peng Lv
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Ruo-Fan Sheng
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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Abstract
Lung cancer is the leading cause of cancer-related mortality around the world. Despite advancements in diagnosis, surgical techniques, and neoadjuvant chemoradiotherapy over the last decade, the mortality rate is still high and the 5-year survival is a dismal 15%. Fortunately, early detection by low-dose computed tomography (LDCT) scans has reduced mortality by 20%; yet, overall, 5-year-survival remains low at less than 20%. Therefore, in order to ameliorate this situation, a thorough understanding of the underlying molecular mechanisms is urgently needed. Chemokines and their receptors, crucial microenvironmental factors, play important roles in lung tumor genesis, progression, and metastasis, and exploring the mechanisms of this might bring new insights into early diagnosis and precisely targeted treatment. Consequently, this review will mainly focus on recent advancements on the axes of chemokines and their receptors of lung cancer.
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Affiliation(s)
- Zeng-Hui Cheng
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China.,Department of Radiology, Qingpu Branch of Zhongshan Hospital, Fudan University, Shanghai 201700, China
| | - Yu-Xin Shi
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Min Yuan
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Dan Xiong
- Department of Clinical Laboratory, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Jiang-Hua Zheng
- Department of Clinical Laboratory, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Zhi-Yong Zhang
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
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Wu CT, Zhao JH, Wei D, Shi YX, Zhu GF. [Lung function influenced the prognosis of cardiac surgery in patients with chronic obstructive pulmonary disease]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 40:86-89. [PMID: 28209037 DOI: 10.3760/cma.j.issn.1001-0939.2017.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the value of lung function for the prognosis of cardiac surgery in patients with chronic obstructive pulmonary disease(COPD). Methods: A retrospective analysis was conducted on the hospitalized patients with coronary heart disease or valvular heart disease in Beijing Anzhen hospital during Janury 2013 to December 2015. The relationship between lung function and extubation time, time of staying in ICU, second time tracheal incubation, tracheotomy and mortality rate were analyzed. Results: There were 355 patients without surgery in a total 1 729 of patients, of which 65 (18.31%)suffered from severe pulmonary dysfunction. There were 242 patients with obstructive ventilation dysfunction, 75 with mild, 127 with moderate, and 40 with severe and very severe obstructive ventilation dysfunction. There were significant differences in the rates of planned extubation and late extubation between patients with normal lung function (81.6% and 10.7%) and those with abnormal lung function(74.4% and 12.8%). In patients with different GOLD classification (Ⅰ, Ⅱ, and Ⅲ-Ⅳ), there were significant differences in the rates of early extubation 14.7%, 14.2% and 5%, planned extubation (80%, 74% and 65%) and late extubation (5.3%, 11.8% and 30%). By comparison with patients without COPD, the extubation time of COPD patients increased by 20.3%, the time of staying in ICU prolonged by 14.2%, and the mortality rate increased to 180%(P<0.05). However, there was no significant difference in the rate of second time tracheal incubation or tracheotomy. Conclusion: There was a close relationship between GOLD classification and prognosis of cardiac surgery patients with COPD. Cardiac surgery needs to be cautious because of increase in incidence of postoperative adverse events in patients with severe pulmonary dysfunction.
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Affiliation(s)
- C T Wu
- Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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Mangal V, Zhu Y, Shi YX, Guéguen C. Assessing cadmium and vanadium accumulation using diffusive gradient in thin-films (DGT) and phytoplankton in the Churchill River estuary, Manitoba. Chemosphere 2016; 163:90-98. [PMID: 27521643 DOI: 10.1016/j.chemosphere.2016.08.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 07/15/2016] [Accepted: 08/01/2016] [Indexed: 06/06/2023]
Abstract
Diffusive gradient in thin films (DGT) and phytoplankton communities were evaluated for the measurement of Cd and V at environmentally relevant concentrations in laboratory settings and in the Churchill River estuary (Manitoba, Canada) during an annual spring melt. Despite rapid changes in hydrology and water quality, DGT samplers and intracellular Cd and V concentrations were positively correlated (0.79 < r(2) < 0.99), suggesting comparable accumulation trends between both DGT-labile and intracellular monitoring techniques. The largest accumulated concentrations of both Cd and V by DGT and phytoplankton accumulation methods were found later into the river discharge period. In controlled settings, accumulated Cd and V concentrations by the diatom Attheya septentrionalis displayed a strong correlation with metals accumulated by DGTs (r(2) > 0.99). Principal component analysis (PCA) reinforced similarities between both metal monitoring techniques and assessed how changing environmental variables during the river discharge period influenced each monitoring technique. Cd accumulation was influenced by DOC concentrations and protein-like DOM whereas ionic strength (i.e. conductivity) and humic-like DOM influenced V accumulation. The present findings suggest that (1) DGT is a versatile tool for monitoring bioaccumulation of Cd and V in highly dynamic environmental systems and (2) DOC concentration, DOM composition, conductivity, pH, and river discharge influence the bioavailability of Cd and V in estuarine and riverine waters.
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Affiliation(s)
- V Mangal
- Environmental and Life Sciences Graduate Program, Trent University, ON, Canada
| | - Y Zhu
- Environmental and Life Sciences Graduate Program, Trent University, ON, Canada
| | - Y X Shi
- Environmental and Life Sciences Graduate Program, Trent University, ON, Canada
| | - C Guéguen
- Chemistry Department, Trent University, ON, Canada.
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Wang ZH, Zhang J, Zhang Q, Gao Y, Yan J, Zhao XY, Yang YY, Kong DM, Zhao J, Shi YX, Li XL. Evaluation of bone matrix gelatin/fibrin glue and chitosan/gelatin composite scaffolds for cartilage tissue engineering. Genet Mol Res 2016; 15:gmr8431. [PMID: 27525846 DOI: 10.4238/gmr.15038431] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study was designed to evaluate bone matrix gelatin (BMG)/fibrin glue and chitosan/gelatin composite scaffolds for cartilage tissue engineering. Chondrocytes were isolated from costal cartilage of Sprague-Dawley rats and seeded on BMG/fibrin glue or chitosan/gelatin composite scaffolds. After different in vitro culture durations, the scaffolds were subjected to hematoxylin and eosin, Masson's trichrome, and toluidine blue staining, anti-collagen II and anti-aggrecan immunohistochemistry, and scanning electronic microscopy (SEM) analysis. After 2 weeks of culture, chondrocytes were distributed evenly on the surfaces of both scaffolds. Cell numbers and the presence of extracellular matrix components were markedly increased after 8 weeks of culture, and to a greater extent on the chitosan/gelatin scaffold. The BMG/fibrin glue scaffold showed signs of degradation after 8 weeks. Immunofluorescence analysis confirmed higher levels of collagen II and aggrecan using the chitosan/gelatin scaffold. SEM revealed that the majority of cells on the surface of the BMG/fibrin glue scaffold demonstrated a round morphology, while those in the chitosan/gelatin group had a spindle-like shape, with pseudopodia. Chitosan/gelatin scaffolds appear to be superior to BMG/ fibrin glue constructs in supporting chondrocyte attachment, proliferation, and biosynthesis of cartilaginous matrix components.
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Affiliation(s)
- Z H Wang
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - J Zhang
- Department of Otolaryngology, The Affiliated Hospital of Yan'an University, Yan'an, China
| | - Q Zhang
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Y Gao
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - J Yan
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - X Y Zhao
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Y Y Yang
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - D M Kong
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - J Zhao
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - Y X Shi
- Department of Otolaryngology, Head and Neck Surgery, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
| | - X L Li
- Department of Dermatology, The Second Hospital, Xi'an Jiaotong University, Xi'an, China
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Abstract
A suspect bacterial leaf spot on vegetable sponge gourd (Luffa cylindrical (L.) Roem.) was found in a commercial greenhouse in Pi County, Chengdu City, Sichuan Province, China, in February 2011. Approximately 20 to 30% of plants were affected, causing serious economic loss. Symptoms occurred only on seedlings and consisted of water-soaked, irregularly shaped, black lesions on the surface and margins of cotyledons. A bacterium was consistently isolated on nutrient agar from diseased leaf tissues that had been surface disinfected in 70% ethyl alcohol for 30 s. The bacterium produced small gray colonies with smooth margins, was gram negative, fluoresced on King's B medium, and showed pectolytic activity when inoculated on potato slices. The partial sequences of 16SrRNA gene (1,377 bp) of the bacterium (GenBank Accession No. KC762217), amplified by using universal PCR primers 16SF (5'-AGAGTTTGATCCTGGCTCAG-3') and 16SR (5'-GGTTACCTTGTTACGACTT-3'), shared 100% similarity with that of Pseudomonas cichorii (GenBank Accession No. HM190228). The vegetable sponge gourd isolate was also identified by using the Biolog Microbial Identification System (version 4.2, Biolog Inc., Hayward, CA) as P. cichorii with the following characteristics (1): negative for arginine dihydrolase, gelatin liquefaction, and N2 production. Positive reactions were obtained in tests for catalase, oxidase, potato rot, utilization of melibiose, and mannitol. Tests were negative for utilization of sucrose, trehalose, D-arabinose, raffinose, cellobiose, and rhamnose. A pathogenicity test was conducted on 4-week-old vegetable sponge gourd plants by spray-inoculation with 108 CFU/ml sterile distilled water on the leaves of 15 vegetable sponge gourd plants and by needle puncture on the stems of 15 other plants with P. cichorii, respectively. Control plants were misted with sterile distilled water or punctured on the stem with a clean needle. Plants were placed in a greenhouse maintained at 28 ± 2°C with relative humidity of 80 to 85%. Symptoms, the same as seen on the original diseased plants, developed after 7 to 10 days on inoculated plants. Control plants remained healthy. The bacterium was readily re-isolated from inoculated plants and identified as P. cichorii using P. cichorii-specific primer hrpla/hrp2a (1). To our knowledge, this is the first report of P. cichorii causing disease on commercially grown vegetable sponge gourd in China. This new finding will provide the basis for developing resources for diagnostics and management, including screening varieties for resistance. References: (1) S. Mazurier et al. J. FEMS Microbiol. Ecol. 49:455, 2004. (2) N. W. Schaad et al., eds. Laboratory Guide for Identification of Plant Pathogenic Bacteria, 3rd ed. APS Press, St. Paul, MN, 2001.
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Affiliation(s)
- B J Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - H L Li
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Y X Shi
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - X W Xie
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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Qin T, Yuan ZY, Peng RJ, Zeng YD, Shi YX, Teng XY, Liu DG, Bai B, Wang SS. Efficacy and tolerability of toremifene and tamoxifen therapy in premenopausal patients with operable breast cancer: a retrospective analysis. ACTA ACUST UNITED AC 2013; 20:196-204. [PMID: 23904760 DOI: 10.3747/co.20.1231] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Given the use of tamoxifen as standard treatment for hormone receptor-positive breast cancer, the use of toremifene as an adjuvant endocrine therapy has not been widely examined. The present retrospective study compared the efficacy and safety of toremifene and tamoxifen in the treatment of operable hormone receptor-positive breast cancer in premenopausal women. METHODS Premenopausal patients with hormone receptor- positive operable breast cancer were eligible. Enrolled patients (n = 1847) received either 60 mg toremifene (n = 396) or 20 mg tamoxifen (n = 1451) daily for a minimum of 5 years after surgery. Disease-free survival (dfs) was the primary endpoint. Overall survival (os) and time to distant recurrence were secondary endpoints. RESULTS Treatment with toremifene and tamoxifen resulted in no between-group differences in dfs (p = 0.659) or os (p = 0.364). Mean dfs was 10.3 years for both groups. Mean os was 11.2 years for the toremifene group and 11.1 years for tamoxifen group. The 5-year dfs rate was 87.0% in the toremifene group and 85.0% in the tamoxifen group. The 5-year survival rate was 94.3% in the toremifene group and 93.5% in the tamoxifen group. Adverse events rates were similar in the two groups, with the exception of irregular menses, which occurred at a higher rate in the tamoxifen group than in the toremifene group (10.0% vs. 6.3%, p = 0.025). CONCLUSIONS In this retrospective study, the efficacy and safety profiles of toremifene and tamoxifen for the treatment of operable hormone receptor-positive breast cancer in premenopausal women were similar.
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Affiliation(s)
- T Qin
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Sun Yat-sen University Cancer Center, Guangzhou, PR China
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Ma Q, Shi YX. H7N9 viral pneumonia: asymmetric and irregular changes on computed tomography. Chin Med J (Engl) 2013; 126:4813. [PMID: 24342341] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Affiliation(s)
- Qian Ma
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Yu-Xin Shi
- Department of Radiology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China.
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Feng F, Shi YX, Xia GL, Zhu Y, Lu HZ, Zhang ZY. Computed tomography in predicting smear-negative pulmonary tuberculosis in AIDS patients. Chin Med J (Engl) 2013; 126:3228-3233. [PMID: 24033941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND The correct diagnosis of sputum smear-negative pulmonary tuberculosis in AIDS patients is very important to their therapy. We aimed to assess the value of the computed tomography (CT) and clinical findings in predicting smear-negative pulmonary tuberculosis in AIDS patients. METHODS A total of 121 AIDS patients suspected of smear-negative pulmonary tuberculosis by clinical and radiographic findings were recruited. Pulmonary tuberculosis was diagnosed in 57 (47.1%) patients. The CT and clinical predictors were selected to diagnose AIDS-related pulmonary tuberculosis through univariate and multivariate Logistic analysis. RESULTS Multivariate analysis showed that five variables, including weight loss, presence of miliary nodules, necrotic lymph node, lobular consolidation, tree-in-bud sign, were independent predictors of pulmonary tuberculosis in AIDS patients. Predicted scores based on the five variables were used to identify pulmonary tuberculosis. If the predicted score of 3 was taken as the ideal cut-off point in the diagnosis of AIDS-related smear-negative pulmonary tuberculosis, the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 84.2%, 81.2%, 80.0%, 85.2%, and 82.6%, respectively. CONCLUSION The prediction method based on five key factors of clinical and CT findings are useful in guiding the diagnosis of smear-negative pulmonary tuberculosis in AIDS patients.
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Affiliation(s)
- Feng Feng
- Department of Radiology, Shanghai Public Health Clinic Center Affiliated to Fudan University, Shanghai 201508, China
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Abstract
OBJECTIVES The aim of our study was to describe the presentation and illustrate the imaging features of chest high-resolution computed tomography (HRCT) of patients with novel influenza A (H1N1) virus infection. METHODS Data were collected from 163 hospitalized patients between November 2009 and March 2011, who fulfilled the clinical criteria for H1N1 influenza infection and underwent HRCT examinations within 24 hours of admission. RESULTS Abnormal findings were observed in 40.5% of the patients. The patients with positive imaging findings were significantly older than patients with normal HRCT findings (P=0.02). The most common finding was ground-glass opacity (GGO) (n=35). Interlobular septal thickening (n=31) and centrilobular nodules (n=30) were the second most frequent findings. Other common findings were consolidation, reticulation, and linear shadow. The most common imaging finding for lung involvement was GGO with a patchy pattern. Pulmonary involvement of the disease may be extensive and variable, but the total volume of affected lung was mostly <1 lobe. CONCLUSION The baseline HRCT may be valuable and suggestive even for non-severe H1N1 infections. When a severe case or a evolution is suspected, chest CT could be essential both for determining the precise extent of parenchymal damage and for monitoring its evolution.
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Affiliation(s)
- Ying Yuan
- Department of Radiology, Changzheng Hospital, Affiliated to Second Military Medical University, Shanghai, China
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Koh VM, Shi YX, Tang QH. P16 and retinoblastoma protein expression in endometrial carcinoma and clinical significance. EUR J GYNAECOL ONCOL 2011; 32:309-315. [PMID: 21797124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To investigate the clinical significance of p16 expression, a product of the cyclin dependent kinase inhibitor CDKN2 (also known as MTS1, multiple tumor suppressor 1) and assess its relationship with retinoblastoma protein expression in the pathogenesis of endometrial cancer. METHOD p16 and pRb expression were histochemically evaluated, using p16 and RB polyclonal antibodies on paraffin sections of 27 primary endometrial adenocarcinomas with no therapy prior to surgery, through the streptavidin peroxydase conjugated method. Further analyses were carried out using the polymerase chain reaction for exon 1 gene amplification to investigate the mechanism of abnormal p16 expression. RESULT p16 expression was detected in 100% of normal endometriums and in 74.04% of endometrial carcinomas (p < 0.05). This was significantly associated with tumor cell grade (p < 0.05). PCR analysis of exon 1 in five cases with no detectable p16 expression revealed four homozygous deletions. Additionally, the inverse correlation between RB and p16 expression was confirmed in this study, with 71.42% of tumors demonstrating inverse expression of p16 and RB (p < .005). CONCLUSION p16 expression decrease is a significant event in endometrial carcinoma pathogenesis, and it is inversely correlated to tumor cell grade. Exon 1 homozygous deletion might be one of the mechanisms of loss of p16 expression. The p16/pRb growth suppressor pathway is targeted in human endometrial carcinoma.
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Affiliation(s)
- V Mue Koh
- University of Douala, University Teaching Hospital Yaounde, Cameroon.
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Ke LD, Shi YX, Im SA, Chen X, Yung WK. The relevance of cell proliferation, vascular endothelial growth factor, and basic fibroblast growth factor production to angiogenesis and tumorigenicity in human glioma cell lines. Clin Cancer Res 2000; 6:2562-72. [PMID: 10873113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Tumor growth is partially dependent on angiogenesis, a process that relies on angiogenic factors. Tumorigenicity of cancer cells is thought to be associated with the production of various angiogenic factors that stimulate or inhibit the rate of endothelial cell migration and proliferation. However, the relative importance of specific individual factors originally studied in cancer cell lines has yet to be determined in vivo. In this study, we examined seven human glioma cell lines for dynamic changes of two major angiogenic factors, basic fibroblast growth factor (bFGF) and vascular endothelial growth factor (VEGF), and for doubling time and tumorigenicity in nude mice. Various correlation studies demonstrated that in these glioma cell lines, VEGF expression correlated well with RBC density in tumor sections (r2 = 0.804) and with average tumor weight (r2 = 0.987). In contrast, bFGF expression in the observed glioma cell lines did not correlate with tumorigenicity (r2 = 0.001) or with VEGF expression (r2 = 0.255). Furthermore, there was no correlation between doubling time and tumorigenicity in these cell lines (r2 = 0.160). Taken together, these results suggest that VEGF plays a major role in glioma formation and that down-regulation of VEGF, rather than bFGF, would be a more effective choice for glioma gene therapy.
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Affiliation(s)
- L D Ke
- Department of Neuro-Oncology, The University of Texas M.D. Anderson Cancer Center, Houston 77030, USA
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27
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He TY, Shi YX, Chen SS. [Expression of VEGF on rabbit skin fibroblasts using retroviral vector]. Shi Yan Sheng Wu Xue Bao 2000; 33:101-7. [PMID: 12548973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
A replication-deficient recombinant retrovirus containing the cDNA coding for human vascular endothelial growth factor (VEGF) was generated, and then infected rabbit primary skin fibroblasts. After selection with G418, the transduced colonies have the ability of producing VEGF. The integration and expression of VEGF in transduced cells were confirmed by Southern blot, PCR, Northern blot and RT-PCR assay. The VEGF secreted by transduced cells has strong bioactivity when assayed by endothelial proliferation and Miles vascular permeability assay. Thus, this study pave the way for future study of biological and physiological effect of VEGF in vivo.
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Affiliation(s)
- T Y He
- Research Center for Human Gene Therapy, Shanghai Second Medical University, Shanghai 200025
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Zhu XH, Shi YX. [Analysis of retinoic acid in subretinal fluid in patients with rhegmatogenous retinal detachment]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:42-4. [PMID: 12212244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
To investigate the relationship between the level of retinoic acid (RA) in the subretinal fluid (SRF) and the extent of the vitreoretinopathy in 56 patients with rhegmatogenous retinal detachment, we studied the levels of RA in both SRF and serum using high liquid chromatography and also examined those levels in part of patients who took oral vitamin A 150,000 U.d-1. The results were that the level of RA in the SRF increased with the grade of the proliferative vitreoretinopathy (PVR); the levels of RA in both SRF and serum were significantly higher in the cases with vitamin A than those without. We conclude that retinoic acid metabolism between retinal pigment epithelial cells and neural epithelia was unbalanced after retinal detachment. Oral vitamin A is helpful to inhibit the genesis and development of the proliferative vitreoretinopathy.
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Affiliation(s)
- X H Zhu
- Department of Ophthalmology, Second Affiliated Hospital, Hunan Medical University, Changsha 410011
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Fueyo J, Gomez-Manzano C, Alemany R, Lee PS, McDonnell TJ, Mitlianga P, Shi YX, Levin VA, Yung WK, Kyritsis AP. A mutant oncolytic adenovirus targeting the Rb pathway produces anti-glioma effect in vivo. Oncogene 2000; 19:2-12. [PMID: 10644974 DOI: 10.1038/sj.onc.1203251] [Citation(s) in RCA: 533] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Effective anti cancer strategies necessitate the use of agents that target tumor cells rather than normal tissues. In this study, we constructed a tumor-selective adenovirus, Delta24, that carries a 24-bp deletion in the E1A region responsible for binding Rb protein. Immunoprecipitation analyses verified that this deletion rendered Delta24 unable to bind the Rb protein. However, titration experiments in 293 cells demonstrated that the Delta24 adenovirus could replicate in and lyse cancer cells with great efficiency. Lysis of most human glioma cells was observed within 10 - 14 days after infection with Delta24 at 10 PFU/cell. In vivo, a single dose of the Delta24 virus induced a 66.3% inhibition (P<0.005) and multiple injections, an 83.8% inhibition (P<0.01) of tumor growth in nude mice. However, normal fibroblasts or cancer cells with restored Rb activity were resistant to the Delta24 adenovirus. These results suggest that the E1A-mutant Delta24 adenovirus may be clinically and therapeutically useful against gliomas and possibly other cancers with disrupted Rb pathway.
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Affiliation(s)
- J Fueyo
- Department of Neuro-Oncology, The University of Texas M.D. Anderson Cancer Center, 1515 Holcombe Blvd., Houston, Texas, TX 77030, USA
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Shi YX, Seto-Poon M, Wheatley JR. The breathing route dependence of ventilatory responses to hypercapnia and exercise is modulated by upper airway resistance. Respirology 1999; 4:331-8. [PMID: 10612565 DOI: 10.1046/j.1440-1843.1999.00201.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE The ventilatory response to hypercapnia is greater breathing orally than nasally. METHODOLOGY We hypothesize that this is due to higher nasal resistance to airflow compared with oral resistance. Seven normal male subjects were studied during both progressive hyperoxic hypercapnia (HC) and exercise (EX) until ventilation exceeded 40 L/min. Under each condition, subjects breathed via the nose only or the mouth only. For each breathing route, ventilation and pathway resistance were calculated simultaneously at the highest common exercise workload (140 +/- 20 watt; mean +/- SE) or the same end-tidal CO2 level (8.0 +/- 0.5%). RESULTS The ventilatory response breathing nasally was decreased by a similar amount for both EX and HC when compared with the oral route. The difference between nasal and oral ventilation was highly correlated with the difference between nasal resistance and oral resistance for both EX and HC (linear regression analysis; r = 0.91 for EX and r = 0.86 for HC; both P < 0.01). CONCLUSION We conclude that the breathing route dependence of ventilatory responses to respiratory stimuli in normal subjects is independent of the method of stimulation and is substantially determined by the added resistance of nasal breathing.
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Affiliation(s)
- Y X Shi
- Department of Respiratory Medicine, University of Sydney, Westmead Hospital, New South Wales, Australia
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31
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Abstract
It has been proposed that decreases in nasal resistance (Rn) during hypercapnia are entirely due to vasoconstriction in the nasal cavity. We hypothesized that alae nasi (AN) muscle activity dilates the nasal vestibule and contributes to the decrease in Rn during hypercapnia. Nine normal subjects were studied during hyperoxic hypercapnia (HH). Rn and vestibular resistance (Rvest) for one nasal passage were measured simultaneously with the AN electromyogram before and after nasal decongestion. HH decreased Rvest from 1.6 +/- 0.6 to 0.8 +/- 0.9 cmH2O . l-1 . s (predecongestant) and from 1.3 +/- 0.8 to 0.6 +/- 0.7 cmH2O . l-1 . s (postdecongestant; both P < 0. 01). Nasal decongestant decreased Rn but not Rvest. Significant inverse linear relationships between Rvest and AN electromyogram were demonstrated for all subjects. We conclude that in normal subjects during HH 1) decreases in Rvest are predominantly due to increases in AN activity; and 2) decreases in Rn are due to a combination of mucosal vasoconstriction and AN activation.
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Affiliation(s)
- Y X Shi
- Department of Respiratory Medicine and University of Sydney, Westmead Hospital, Westmead, New South Wales 2145, Australia
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Abstract
Hysteresis of the nasal airway pressure-flow relationship (PFR) is seen during hyperpnea, with lower nasal resistance during increasing inspiratory flow than during decreasing flow. We hypothesized that the nasal PFR hysteresis arose in the nasal vestibule airway because of progressive collapse during the inspiration. We measured the inspiratory transnasal and transvestibular PFR for one nasal passage in five normal subjects breathing via a nasal mask during voluntary hyperventilation, both with voluntary nostril flaring and without flaring. The inspiratory hysteresis (IH) was quantified as the ratio of the areas under the descending and ascending pressure-flow curves. Flaring reduced the vestibular IH from 1.96 +/- 0.06 to 1.15 +/- 0.06 and the nasal IH from 2.05 +/- 0.13 to 1.28 +/- 0.06 (both P < 0.01). Our results demonstrate that hysteresis arises in the compliant vestibule segment of the nasal airway, likely because of progressive collapse of the nasal vestibule during inspiration. The findings suggest that hysteresis is prevented by voluntary nostril flaring maintained throughout inspiration.
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Affiliation(s)
- Y X Shi
- Department of Respiratory Medicine, University of Sydney, Westmead Hospital, Westmead, New South Wales 2145, Australia
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Ke LD, Fueyo J, Chen X, Steck PA, Shi YX, Im SA, Yung WK. A novel approach to glioma gene therapy: down-regulation of the vascular endothelial growth factor in glioma cells using ribozymes. Int J Oncol 1998; 12:1391-6. [PMID: 9592205 DOI: 10.3892/ijo.12.6.1391] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Glioblastoma multiforme is one of the most highly vascularized solid neoplasms, therefore treatments that target neovascularization process would be of great clinical importance. Studies of glioblastoma angiogenesis have revealed that expression of the vascular endothelial growth factor (VEGF) is up-regulated in these tumors. Previous reports have shown that down-regulation of VEGF correlates with modification in the glioma growth. To examine this phenomenon further, in this study we constructed two hammerhead ribozymes (RZI and RZII) to target the 5' common region of VEGF mRNA. Both ribozymes exhibited site-specific cleavage to a 318-nucleotide VEGF transcript and showed a high digestion efficiency in vitro (65-95%). After the transfection of glioma cells with two expression vectors carrying the ribozyme sequence, Northern blot analyses detected high levels of ribozyme expression. Treatment of the glioma cells with the ribozymes resulted in a reduction in VEGF mRNA in six of eight clones. Furthermore, the anti-VEGF effect was confirmed at protein level. Thus, enzyme-linked immunoabsorbent analyses (ELISA) showed a >70% reduction in the VEGF165 expression level. These results indicate that hammerhead ribozymes may be useful in down-regulating VEGF expression and suggest that anti-VEGF strategies may be used to potentiate other gene therapies targeting tumor suppressor genes.
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Affiliation(s)
- L D Ke
- Department of Neuro-Oncology, The University of Texas M.D. Anderson Cancer Center, Houston, TX 77030, USA
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Abstract
Exercise (Ex) and hypercapnia (HC) both lead to increases in ventilation and upper airway muscle (UAM) activity. To determine whether different breathing routes (nasal vs. oral) or stimuli produced differential UAM activation, electromyographic (EMG) activity of the alae nasi (AN) and genioglossus (GG) were measured in seven normal subjects seated on a bicycle ergometer. Subjects performed paired runs during both progressive Ex and HC while breathing through the nose alone (N) or the mouth alone (O). During hyperpnea, AN EMG was greater when the subjects were breathing via N [81 +/- 6% maximum (HC) and 69 +/- 7% maximum (Ex)] than when they were breathing via O [30 +/- 5% maximum (HC) and 27 +/- 5% maximum (Ex); both P < 0.01], whereas the GG EMG did not differ between N and O. Both AN and GG EMG were similar for Ex and HC when the subjects were breathing via the same route. We conclude that UAM activation was independent of the nature of the stimulus. However, the AN muscle but not the GG muscle demonstrated breathing-route dependence of activity.
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Affiliation(s)
- Y X Shi
- Department of Respiratory Medicine, Westmead Hospital, University of Sydney, Westmead 2145, New South Wales, Australia
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Begovac PC, Shi YX, Mansfield D, Shur BD. Evidence that cell surface beta 1,4-galactosyltransferase spontaneously galactosylates an underlying laminin substrate during fibroblast migration. J Biol Chem 1994; 269:31793-9. [PMID: 7989353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
beta 1,4-Galactosyltransferase is unusual among the glycosyltransferases in that a subpopulation exists on the cell surface in addition to its traditional biosynthetic location within the Golgi complex. On the cell surface, galactosyltransferase is expressed in spatially restricted, cell type-specific domains, where it functions as a receptor for extracellular oligosaccharide ligands during selected cellular interactions. For example, galactosyltransferase is found on the leading and trailing edges of migrating cells, where it facilitates lamellipodia formation and cell spreading by binding to specific N-linked oligosaccharides within laminin. Although the ability of galactosyltransferase to serve as a laminin receptor is well documented, it is unclear whether it functions solely in a lectin-like capacity to bind laminin glycoside ligands or uses its intrinsic catalytic activity to release itself from and modify its oligosaccharide substrate. In this study, we determined whether cell surface galactosyltransferase spontaneously galactosylates laminin matrices during cell migration using endogenous galactose donors. Cells were prelabeled with [3H]galactose, washed, and transferred in small clusters onto laminin matrices. The prelabeled cells migrated out from the cell cluster, during which time they deposited covalently bound [3H]galactose residues onto the laminin matrix. The degree of galactosylation was both laminin- and time-dependent and required actively migrating, intact cells. The radioactivity released from the 3H-galactosylated laminin by acid hydrolysis comigrated with authentic galactose standards on paper chromatography. In parallel assays, there was no radioactivity deposited on laminin matrices when cells were prelabeled with [3H]fucose or [3H]leucine. Furthermore, [3H]galactosylation was dependent upon galactosyltransferase-mediated cell migration, since prelabeled cells did not deposit [3H]galactose when migrating on fibronectin, upon which migration is integrin-dependent and galactosyltransferase-independent. These results raise the possibility that galactosyltransferase functions catalytically during cell migration, either to dissociate from its oligosaccharide ligand and/or to modify the extracellular matrix.
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Affiliation(s)
- P C Begovac
- Department of Biochemistry and Molecular Biology, University of Texas M.D. Anderson Cancer Center, Houston 77030
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Begovac PC, Shi YX, Mansfield D, Shur BD. Evidence that cell surface beta 1,4-galactosyltransferase spontaneously galactosylates an underlying laminin substrate during fibroblast migration. J Biol Chem 1994. [DOI: 10.1016/s0021-9258(18)31765-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Shi YX. [Dehydration therapy in rabbit models of the respiratory distress syndrome induced by oleic acid]. Zhonghua Jie He He Hu Xi Za Zhi 1988; 11:93-5, 128. [PMID: 3197179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Zhu XY, Shi YX. Vasovasostomy with use of medical needle as a support. J Urol 1988; 139:53-4. [PMID: 3336105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Between May 1981 and December 1985 we performed vasovasostomy using a needle as a support in 43 patients who had undergone vasectomy for family planning. The operation is simple with little surgical trauma and few complications. All 39 patients who underwent semen analysis had return of spermatozoa. Pregnancy resulted in 27 of 34 patients (79.41 per cent) who attempted conception. The results were satisfactory. The procedure is described, and the complication and success rates are analyzed.
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Affiliation(s)
- X Y Zhu
- Department of Urology, Xiangxi Autonomous Prefecture's Hospital Jishou City, Hunan, China
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Shi YX, Xu FX. [Clinical and pathological observations on the treatment of chronic active hepatitis B with gan fu lin extract]. Zhong Xi Yi Jie He Za Zhi 1986; 6:522-5, 514. [PMID: 2947721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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40
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Liang RT, Shi YX. Isolation, purification & properties of lactose binding agglutination factor from rabbit skeletal muscle. Sci Sin B 1984; 27:257-64. [PMID: 6206562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The lactose binding agglutination factor from rabbit skeletal muscle is isolated through the use of lactose and urea. The factor is purified with DEAE cellulose and Sepharose 4B chromatography. The molecular weight of the factor is determined with Sephadex G-75 chromatography and found to be 28,000 Daltons. The subunit's molecular weight is determined by SDS gel electrophoresis, and found to be 14,000 Daltons. It was found that this binding factor can agglutinate trypsin-treated rabbit erythrocytes. Moreover, this agglutination is inhibited by EDTA and lactose.
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