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Li MY, Chen QX, Lu YJ, Pan WY, Zeng DX, Jiang JH. [Comparison of ultrathin bronchoscopy with conventional bronchoscopy for the diagnostic value of peripheral pulmonary lesions]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:332-338. [PMID: 38599808 DOI: 10.3760/cma.j.cn112147-20231015-00234] [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] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Objective: To assess and compare the diagnostic efficacy of next-generation ultrathin bronchoscopy (UTB) and conventional bronchoscopy (CB), both combined with radial endobronchial ultrasound (r-EBUS), in the evaluation of peripheral pulmonary lesions (PPL). Methods: A cohort of 39 patients with PPL who underwent multimodal bronchoscopy at Dushu Lake Hospital, Soochow University, from June 1, 2021 to May 31, 2023 was consecutively enrolled. A single bronchoscopist performed multimodal bronchoscopies using CB (external diameter 4.9 mm or 5.9 mm, working channel diameter 2 or 3 mm, CB group) for transbronchial biopsy under r-EBUS guidance (rEBUS-TBLB), followed by UTB (external diameter 3 mm, working channel diameter 1.7 mm, UTB group) for transbronchial biopsy under r-EBUS guidance. Pathological findings and a 6-month clinical follow-up were used as the gold standard to compare the diagnostic yield of biopsy specimens, ultrasound characteristics, and localization rates of the two bronchoscope types. The aim was to evaluate the clinical application value of UTB combined with r-EBUS. Binary variables were analysed using the McNemar test for paired data. Continuous variables or ranked data were analysed using the Wilcoxon signed-rank test for paired data. Results: The diagnostic yields for UTB and CB groups were 66.67% (26/39) and 30.77% (12/39), respectively, with the UTB group significantly surpassing the CB group (χ2=10.56, P=0.001, 1-β=0.968). r-EBUS with CB exhibited no visible lesion in 13 cases, adjacent to the lesion in 19 cases, and within the lesion in 7 cases.Substitution of UTB resulted in r-EBUS images changing from no visible lesion to adjacent to the lesion in 7 cases, from no visible lesion to within the lesion in 3 cases, and from adjacent to the lesion to within the lesion in 12 cases. The positioning of the r-EBUS probe in relation to the lesions improved significantly with UTB usage (Z=-4.46, P<0.001). Localization rates (number of patients with "within" or "adjacent to" the image/total number of patients) for UTB and CB were 92.30% (36/39) and 66.67% (26/39), respectively (χ2=8.10, P=0.002). UTB improved r-EBUS probe localization rates. The diagnostic yields of UTB were higher than CB for solid lesions, lesions>30 mm in diameter, non-upper lobar location, benign or malignant lesions and lesions with or without a bronchus sign. Conclusion: The UTB group demonstrated a significantly higher diagnostic yield than the CB group, providing superior r-EBUS probe images, and a significant diagnostic advantage for PPL.
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Affiliation(s)
- M Y Li
- Department of Pulmonary and Critical Care Medicine, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 212151, China
| | - Q X Chen
- Department of Pulmonary and Critical Care Medicine, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 212151, China
| | - Y J Lu
- Department of Pulmonary and Critical Care Medicine, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 212151, China
| | - W Y Pan
- Department of Pulmonary and Critical Care Medicine, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 212151, China
| | - D X Zeng
- Department of Pulmonary and Critical Care Medicine, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 212151, China
| | - J H Jiang
- Department of Pulmonary and Critical Care Medicine, Dushu Lake Hospital Affiliated to Soochow University, Suzhou 212151, China
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Feng JF, Wang L, Chen QX, Yang X. Development and Validation of a New Integrative Score Based on Various Systemic Inflammatory and Nutritional Indicators in Predicting Prognosis in Patients With Resectable Esophageal Squamous Cell Carcinoma: A Retrospective Cohort Study. Cancer Control 2022; 29:10732748221091394. [PMID: 35410489 PMCID: PMC9008826 DOI: 10.1177/10732748221091394] [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] [Indexed: 12/24/2022] Open
Abstract
Background Recent studies revealed that various inflammatory and nutritional indexes
were associated with prognosis in esophageal cancer (EC). However, these
studies only evaluated one or two indexes, and the prognostic value of these
indexes individually or in combination is unclear. This study aimed to
construct an integrative score based on various inflammatory and nutritional
indexes for prognosis in resectable esophageal squamous cell
carcinoma (ESCC). Methods A total of 421 consecutive patients were randomly divided into either a
training or validation cohort at a ratio of 7:3 for retrospective analysis.
Using logic regression analyses, independent risk factors from peripheral
blood indexes were screened to construct an integrative score. The
associations regarding the integrative score, clinical characteristics,
cancer-specific survival (CSS), and overall survival (OS) were analyzed. Results Out of 20 indexes, hemoglobin (HB), C-reactive protein to albumin ratio
(CAR), and platelet to lymphocyte ratio (PLR) were independent risk factors
based on logical regression analyses. Then, an integrative score with the
optimal cut-off value of .67 was established according to the Combination Of
HB, CAR, and PLR (COHCP). The area under the curve (AUC) indicated higher
predictive ability of COHCP on prognosis than other indicators. Multivariate
analyses revealed that COHCP serves as an independent prognostic score.
Patients with COHCP low group (≤.67) had better 5-year CSS (57.3% vs 13.5%,
P < .001) and OS (51.1% vs 12.3%, P
< .001) than those with high group, respectively. Finally, the nomogram
based on COHCP was established and validated regarding CSS and OS, which can
accurately and effectively predict individual survival in resected ESCC. Conclusion The COHCP was a novel, simple, and useful predictor in resectable ESCC. The
COHCP-based nomogram may accurately and effectively predict survival.
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Affiliation(s)
- Ji Feng Feng
- Department of Thoracic Oncological Surgery, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, 89680Zhejiang Cancer Hospital, Hangzhou, China
| | - Liang Wang
- Department of Thoracic Oncological Surgery, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, 89680Zhejiang Cancer Hospital, Hangzhou, China
| | - Qi-Xun Chen
- Department of Thoracic Oncological Surgery, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, 89680Zhejiang Cancer Hospital, Hangzhou, China
| | - Xun Yang
- Department of Thoracic Oncological Surgery, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, 89680Zhejiang Cancer Hospital, Hangzhou, China
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Li H, Xu ZK, Chen QX, Li FC. [Role of crenel lateral lumbar interbody fusion in the precise selection of fusion level in posterior correction for adult degenerative scoliosis]. Zhonghua Wai Ke Za Zhi 2022; 60:69-78. [PMID: 34954950 DOI: 10.3760/cma.j.cn112139-20210331-00149] [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: 11/05/2022]
Abstract
Objective: To investigate the role of minimally invasive crenel lateral lumbar interbody fusion (CLIF) in the decision of fusion level in posterior correction for severe adult degenerative scoliosis. Methods: This is prospective study.Patients with level Ⅴ and Ⅵ of Lenke-Silva classification who were treated in department of spine surgery,orthopedics center,the Second Affiliated Hospital, School of Medicine, Zhejiang University from June 2016 to March 2019 were included.First,the enrolled patients completed the preoperative clinical and imaging examination,the Lenke-Silva classification was evaluated,the surgical segments in first-stage CLIF was determined and the fusion segments required for single-stage posterior correction was predicted.After the first-stage CLIF,patients received reassessment of Lenke-Silva classification and global coronal and sagittal balance.Patients were divided into two groups:the effective group (level of Lenke-Silva classification decreased) and the ineffective group (level of Lenke-Silva classification unchanged).Second-stage posterior surgery was performed based on the results of reassessments.The fusion segment,Cobb angle,parameters of global coronal and sagittal plane,visual analogue pain score (VAS) and Oswestry disability index (ODI) were compared between the two groups preoperatively,after first-stage CLIF,second-stage posterior fixation and at the final follow-up.The potential factors associated with the decrease of the level of Lenke-Silva classification were recorded and compared between the two groups.Independent sample t test,repeated measure analysis of variance,rank sum test,χ2 test or Fisher exact method were used to compare the difference among groups. Results: Fifty-four patients were enrolled,including 8 males and 46 females,aged (68.8±5.8) years (range:56 to 77 years).Preoperatively,26 patients were classified as level Ⅴ by Lenke-Silva classification,28 cases were grade Ⅵ.CLIF was performed in 194 segments,with 114 (58.8%) segments receiving anterior column realignment (ACR) and 15 (7.7%) segments using hyperlordotic cages.After first-stage CLIF,22 patients with level Ⅴ and 10 patients with Ⅵ of Lenke-Silva classification decreased and were classified into effective group.The level of the remaining 4 patients with level Ⅴ and 18 patients with grade Ⅵ unchanged and were classified into ineffective group.Preoperatively,the apical vertebrae was below L1 in all 32 patients of effective group and 18 (81.8%,18/22) patients of ineffective group.The difference was statistically significant (P=0.023).There were 7 (31.8%,7/22) patients had continuous osteophyte in front of the intervertebral space in ineffective group,while none patient had continuous osteophyte in front of the intervertebral space in effective group,and the difference was statistically significant (P=0.001).In first-stage CLIF,more intraoperative ACR(71.2% vs.39.5%,χ²=20.66,P<0.01)and hyperlordotic cage (12.7$ vs.0,P=0.001)were used in the effective group,while there was less severe cage subsidence after the operation (5.9% vs.15.8%,χ²=4.793,P=0.029) in effective group.After first-stage CLIF,there was no difference in the Cobb angle between the two groups.While,lumbar lordosis (LL) in effective group (34.0±8.3)° was greater than that of the ineffective group (25.5±9.7)° (t=3.478,P=0.001),and the difference between the pelvic incidence (PI) and LL in effective group (15.7±4.6)°was significantly smaller than ineffective group(20.0±10.8)° (t=-2.129,P=0.038).The posterior fusion levels was less,the rate of fusion to thoracic spine region and the actual fusion segment was less than that of single-stage posterior correction in effective group (all P<0.01).All patients were follow-up for 24 to 45 months.There was no significant difference in radiological and clinical results between the two groups after first-,second-stage surgery and at the final follow-up (all P>0.05). Conclusions: First-stage CLIF decreased the Lenke-Silva classification of some patients with severe degenerative scoliosis.Combined with the reassessment of Lenke-Silva classification and global coronal and sagittal plane,it helps to accurately determine the fusion segment.Decrease of Lenke-Silva classification was associated with the preoperative level of apical vertebrae,continuous osteophytes in front of the intervertebral space,intraoperative use of ACR and hyperlordotic cage and the degree of cage subsidence postoperatively.
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Affiliation(s)
- H Li
- Department of Orthopedics,the Second Affiliated Hospital,School of Medicine,Zhejiang University,Hangzhou 310009,China
| | - Z K Xu
- Department of Orthopedics,the Second Affiliated Hospital,School of Medicine,Zhejiang University,Hangzhou 310009,China
| | - Q X Chen
- Department of Orthopedics,the Second Affiliated Hospital,School of Medicine,Zhejiang University,Hangzhou 310009,China
| | - F C Li
- Department of Orthopedics,the Second Affiliated Hospital,School of Medicine,Zhejiang University,Hangzhou 310009,China
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Qiu B, Cai K, Chen C, Chen J, Chen KN, Chen QX, Cheng C, Dai TY, Fan J, Fan Z, Hu J, Hu WD, Huang YC, Jiang GN, Jiang J, Jiang T, Jiao WJ, Li HC, Li Q, Liao YD, Liu HX, Liu JF, Liu L, Liu Y, Long H, Luo QQ, Ma HT, Mao NQ, Pan XJ, Tan F, Tan LJ, Tian H, Wang D, Wang WX, Wei L, Wu N, Wu QC, Xiang J, Xu SD, Yang L, Zhang H, Zhang L, Zhang P, Zhang Y, Zhang Z, Zhu K, Zhu Y, Um SW, Oh IJ, Tomita Y, Watanabe S, Nakada T, Seki N, Hida T, Sasada S, Uchino J, Sugimura H, Dermime S, Cappuzzo F, Rizzo S, Cho WCS, Crucitti P, Longo F, Lee KY, De Ruysscher D, Vanneste BGL, Furqan M, Sieren JC, Yendamuri S, Merrell KW, Molina JR, Metro G, Califano R, Bongiolatti S, Provencio M, Hofman P, Gao S, He J. Expert consensus on perioperative immunotherapy for local advanced non-small cell lung cancer. Transl Lung Cancer Res 2021; 10:3713-3736. [PMID: 34733623 PMCID: PMC8512472 DOI: 10.21037/tlcr-21-634] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/18/2021] [Indexed: 02/05/2023]
Affiliation(s)
- Bin Qiu
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Kaican Cai
- Department of Thoracic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Chun Chen
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Jun Chen
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Ke-Neng Chen
- Department of Thoracic Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing, China
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Cancer Hospital of University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Science, Hangzhou, China
| | - Chao Cheng
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tian-Yang Dai
- Department of Thoracic Surgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Junqiang Fan
- Department of Thoracic Surgery, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
| | - Zhaohui Fan
- Department of Thoracic Surgery, Jiangsu Cancer Hospital (Nanjing Medical University Affiliated Cancer Hospital) and Jiangsu Institute of Cancer Research, Nanjing, China
| | - Jian Hu
- Department of Thoracic Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Wei-Dong Hu
- Department of Thoracic Surgery, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Yun-Chao Huang
- Department of Thoracic Surgery, Yunnan Cancer Hospital, Kunming, China
| | - Ge-Ning Jiang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jie Jiang
- Department of Thoracic Surgery, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Tao Jiang
- Department of Thoracic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Wen-Jie Jiao
- Department of Thoracic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - He-Cheng Li
- Department of Thoracic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qiang Li
- Department of Thoracic Surgery, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yong-De Liao
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hong-Xu Liu
- Department of Thoracic Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Jun-Feng Liu
- Department of Thoracic Surgery, The Fourth Hospital of Hebei Medical University, Shijiazhuang, China
| | - Lunxu Liu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Liu
- Department of Thoracic Surgery, Chinese PLA General Hospital, Beijing, China
| | - Hao Long
- Department of Thoracic Surgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Qing-Quan Luo
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Hai-Tao Ma
- Department of Thoracic Surgery, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Nai-Quan Mao
- Department of Thoracic Surgery, Tumor Hospital Affiliated to Guangxi Medical University, Nanning, China
| | - Xiao-Jie Pan
- Department of Thoracic Surgery, Fujian Provincial Hospital, Fuzhou, China
| | - Fengwei Tan
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Li-Jie Tan
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hui Tian
- Department of Thoracic Surgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Dong Wang
- Department of Cardiothoracic Surgery, Affiliated Taikang Xianlin Drum Tower Hospital, Medical School of Nanjing University, Nanjing, China
| | - Wen-Xiang Wang
- Department of Thoracic Surgery II, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, China
| | - Li Wei
- Henan Provincial People's Hospital, Zhengzhou, China
| | - Nan Wu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Thoracic Surgery II, Peking University Cancer Hospital & Institute, Beijing, China
| | - Qing-Chen Wu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiaqing Xiang
- Department of Thoracic Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
| | - Shi-Dong Xu
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Lin Yang
- Department of Thoracic Surgery, Shenzhen People's Hospital, 2nd Clinical Medical College of Jinan University, Shenzhen, China
| | - Hao Zhang
- Department of Thoracic Cardiovascular Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Lanjun Zhang
- Department of Thoracic Surgery, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangdong Esophageal Cancer Institute, Guangzhou, China
| | - Peng Zhang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yi Zhang
- Department of Thoracic Surgery, Xuanwu Hospital of Capital Medical University, Beijing, China
| | - Zhenfa Zhang
- Department of Lung Cancer, Tianjin Medical University Cancer Institute & Hospital, Tianjin, China
| | - Kunshou Zhu
- Department of Thoracic Surgery, Fujian Cancer Hospital and Fujian Medical University Cancer Hospital, Fuzhou, Fujian, China
| | - Yuming Zhu
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Sang-Won Um
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - In-Jae Oh
- Department of Internal Medicine, Chonnam National University Medical School and Hwasun Hospital, Jeonnam, Korea
| | - Yusuke Tomita
- Department of Respiratory Medicine, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Satoshi Watanabe
- Department of Respiratory Medicine and Infectious Diseases, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - Takeo Nakada
- Department of Thoracic Surgery, Aichi Cancer Center Hospital, Nagoya, Japan
| | - Nobuhiko Seki
- Division of Medical Oncology, Department of Internal Medicine, Teikyo University School of Medicine, Tokyo, Japan
| | - Toyoaki Hida
- Lung Cancer Center, Central Japan International Medical Center, Gifu, Japan
| | - Shinji Sasada
- Department of Respiratory Medicine, Tokyo Saiseikai Central Hospital, Tokyo, Japan
| | - Junji Uchino
- Department of Pulmonary Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Haruhiko Sugimura
- Department of Tumor Pathology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka, Japan
| | - Said Dermime
- Department of Medical Oncology and Translational Research Institute, National Center for Cancer Care and Research, Hamad Medical Corporation, Doha, Qatar
| | - Federico Cappuzzo
- Division of Medical Oncology 2, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Stefania Rizzo
- Imaging Institute of the Southern Switzerland (IIMSI), Ente Ospedaliero Cantonale (EOC), Università della Svizzera Italiana, Lugano, Switzerland
| | | | | | - Filippo Longo
- Department of Thoracic Surgery, University Campus Bio-Medico, Rome, Italy
| | - Kye Young Lee
- Precision Medicine Lung Cancer Center, Konkuk University Medical Center, Seoul, Korea
| | - Dirk De Ruysscher
- Department of Radiation Oncology, MAASTRO Clinic, GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Ben G L Vanneste
- Department of Radiation Oncology, MAASTRO Clinic, GROW School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Muhammad Furqan
- Division of Hematology, Oncology and Blood and Marrow Transplantation, Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Jessica C Sieren
- Department of Radiology and Biomedical Engineering, University of Iowa, Iowa City, IA, USA
| | - Sai Yendamuri
- Department of Thoracic Surgery, Roswell Park Cancer Institute, Buffalo, NY, USA
| | | | - Julian R Molina
- Division of Medical Oncology, Mayo Clinic, Rochester, MN, USA
| | - Giulio Metro
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, Perugia, Italy
| | - Raffaele Califano
- Department of Medical Oncology, The Christie NHS Foundation Trust and Division of Cancer Sciences, The University of Manchester, Manchester, UK
| | | | - Mariano Provencio
- Medical Oncology Department, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Paul Hofman
- Laboratory of Clinical and Experimental Pathology, FHU OncoAge, Pasteur Hospital, BB-0033-00025, CHU Nice, Université Côte d'Azur, Nice, France
| | - Shugeng Gao
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jie He
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Feng JF, Zhao JM, Chen S, Chen QX. Naples Prognostic Score: A Novel Prognostic Score in Predicting Cancer-Specific Survival in Patients With Resected Esophageal Squamous Cell Carcinoma. Front Oncol 2021; 11:652537. [PMID: 34123805 PMCID: PMC8193841 DOI: 10.3389/fonc.2021.652537] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/10/2021] [Indexed: 12/11/2022] Open
Abstract
Background Naples prognostic score (NPS) serves as a new prognostic index based on nutritional and inflammatory status in recent years. The aim of the current study was to explore the prognostic effect of NPS and to develop and validate a reliable nomogram based on NPS for individual cancer-specific survival (CSS) prediction in patients with resected ESCC without neoadjuvant therapy. Methods The clinical data for 287 (Jan. 2010 to Jun. 2012, Training sets) and 118 (Jan. 2015 to Dec 2015, Validation sets) consecutive resected ESCC cases were retrospectively analyzed. Two NPS models based on the different cut-off values of parameters were compared. Cut-off values in model 1 were derived from previous published studies, while cut-off values in model 2 were obtained in this study based on receiver operating characteristic (ROC) curves. The relationships between NPS and clinical characteristics and CSS were analyzed. The prediction model of nomogram was developed with independent prognostic factors in the training sets and was validated in the validation sets. Results The 5-year CSS for NPS 0, 1 and 2 were 61.9%, 34.6% and 13.4% in model 1 and 75.0%, 42.4% and 13.0% in model 2, respectively (P<0.001). Subgroup analyses revealed that NPS was also significantly associated with CSS in both model 1 and model 2 in different TNM stages. Multivariate analyses revealed that NPS was an independent prognostic marker regarding CSS in patients with resected ESCC (P<0.001). A predictive nomogram based on NPS was established and validated. The C-indexes of the nomogram in the training sets and validation sets were 0.68 and 0.72 in model 1 and 0.69 and 0.73 in model 2, respectively. These results confirmed that NPS-based nomogram was a more accurate and effective tool for predicting CSS in patients with resected ESCC. Conclusion The current study confirmed that NPS was still a useful independent prognostic score in patients with resected ESCC. The NPS-based nomogram was successfully developed and validated, which may contribute to individual CSS prediction for resected ESCC patients.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Oncological Surgery, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Jian-Ming Zhao
- Department of Thoracic Surgery, Jinhua Guangfu Hospital, Jinghua, China
| | - Sheng Chen
- Department of Thoracic Oncological Surgery, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Qi-Xun Chen
- Department of Thoracic Oncological Surgery, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
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6
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Feng JF, Zhao JM, Chen S, Chen QX. Prognostic Significance of the Lung Immune Prognostic Index in Patients with Resected Esophageal Squamous Cell Carcinoma. Cancer Manag Res 2021; 13:2811-2819. [PMID: 33814930 PMCID: PMC8009341 DOI: 10.2147/cmar.s298412] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 12/26/2020] [Accepted: 03/08/2021] [Indexed: 01/21/2023] Open
Abstract
Background The lung immune prognostic index (LIPI), a novel index combined with serum lactate dehydrogenase (LDH) and derived neutrophil to lymphocyte ratio (dNLR), is recently proposed to predict prognosis in lung cancer. The LIPI is not a unique indicator for lung cancer. However, the prognostic role of LIPI has not yet been evaluated in extra-pulmonary cancer. The aim of this study was to determine whether LIPI is still a useful prognostic indicator for patients with resected esophageal squamous cell carcinoma (ESCC). Methods The clinical data including preoperative laboratory results for 361 consecutive resected ESCC cases from 2007 to 2010 were retrospectively analyzed. A LIPI based on serum LDH and dNLR was conducted, characterizing into 3 groups (LIPI 0, 1 and 2). The association between LIPI and cancer-specific survival (CSS) was analyzed according to the Kaplan–Meier method and Cox regression analysis with hazard ratio (HR) and 95% confidence interval (CI). A nomogram model was conducted by R 3.6.0 software. Results In this study, 220 (60.9%), 100 (27.7%) and 41 (11.4%) patients had a LIPI of 0, 1 and 2, respectively. The 5-year CSS for LIPI 0, 1 and 2 was 40.9%, 19.0% and 9.8%, respectively (P<0.001). Subgroup analysis based on TNM stage revealed that HALP was also significantly related to CSS in any stage (TNM I: P=0.002; TNM II: P=0.009; TNM III: P=0.031). The LIPI serves as an independent predictor regarding CSS in multivariate analyses in patients with resected ESCC. Compared to LIPI 0, LIPI 1 and 2 had an HR of 1.419 (95% CI: 1.063–1.895, P=0.018) and 2.064 (95% CI: 1.403–3.036, P<0.001) regarding CSS, respectively. A nomogram was also developed in individualized CSS prediction based on LIPI in patients with resected ESCC. Conclusion To the best of our knowledge, the present study is the first study to explore the association between LIPI and prognosis in patients with extra-pulmonary cancer. The LIPI, combined with LDH and dNLR, is still a potential independent prognostic marker in patients with resected ESCC.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Oncological Surgery, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, 310022, People's Republic of China.,Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Hangzhou, 310022, People's Republic of China
| | - Jian-Ming Zhao
- Department of Thoracic Surgery, Jinhua Guangfu Hospital, Jinghua, 321001, People's Republic of China
| | - Sheng Chen
- Department of Thoracic Oncological Surgery, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, 310022, People's Republic of China
| | - Qi-Xun Chen
- Department of Thoracic Oncological Surgery, Institute of Cancer Research and Basic Medical Sciences of Chinese Academy of Sciences, Cancer Hospital of University of Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, 310022, People's Republic of China.,Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Hangzhou, 310022, People's Republic of China
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Zhang SQ, Li MC, Chen QX. [Clinical standard for neurosurgery during novel coronavirus disease 2019 epidemic]. Zhonghua Yi Xue Za Zhi 2020; 100:3744-3746. [PMID: 33379835 DOI: 10.3760/cma.j.cn112137-20200818-02416] [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: 06/12/2023]
Affiliation(s)
- S Q Zhang
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - M C Li
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Q X Chen
- Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan 430060, China
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Zeng J, Mao WM, Chen QX, Luo TB, Wu YL, Zhou Q, Yang XN, Yan HH, Zhong WZ, Wang Q, Xu ST, Wu L, Shen Y, Liu YY, Chen C, Cheng Y, Xu L, Wang J, Fei K, Li XF, Li J, Huang C, Liu ZD, Xu S, Chen KN, Xu SD, Liu LX, Yu P, Wang BH, Ma HT. Quality of life with adjuvant gefitinib versus vinorelbine plus cisplatin in patients with completely resected stage II-IIIA (N1-N2) EGFR-mutant non-small-cell lung cancer: Results from the ADJUVANT (CTONG1104) study. Lung Cancer 2020; 150:164-171. [PMID: 33186858 DOI: 10.1016/j.lungcan.2020.09.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 04/17/2020] [Revised: 09/12/2020] [Accepted: 09/22/2020] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Health-related quality of life (HRQoL) data complement conventional clinical endpoints when comparing adjuvant gefitinib with chemotherapy in patients with early-stage non-small-cell lung cancer (NSCLC) and epidermal growth factor receptor (EGFR) mutations. This study aimed to assess changes in HRQoL with adjuvant gefitinib vs chemotherapy in this patient group. MATERIALS AND METHODS In the phase III ADJUVANT trial, patients with completely resected, stage II-IIIA (N1-N2), EGFR-mutant NSCLC were randomized (1:1) to receive either gefitinib for 24 months or vinorelbine plus cisplatin (VP) every 3 weeks for four cycles. HRQoL was assessed as a secondary endpoint using the Functional Assessment of Cancer Therapy-Lung Cancer (FACT-L), Lung Cancer Symptom Scale (LCSS) questionnaires, and Trial Outcome Index (TOI) composite score. HRQoL dynamics, improvements, and time to deterioration were compared between groups. RESULTS At baseline, 104 of 106, and 80 of 87 patients receiving gefitinib and VP, respectively, completed two questionnaires (FACT-L and LCSS). Baseline scores were balanced between groups. Although HRQoL fluctuated and gradually improved in both groups, longitudinally higher scores were reported with gefitinib than VP (FACT-L, odds ratio 418.16, 95 % confidence interval [CI] 2.75-63509.05, p = 0.019; LCSS, 1.13, 1.04-1.22, p = 0.003; TOI, 88.39, 4.40-1775.05, p = 0.003). Time to deterioration in HRQoL was delayed with gefitinib compared with VP (FACT-L, median 69 vs 6 weeks, hazard ratio 0.62, 95 % CI 0.42-0.90, p = 0.013; LCSS, median 45 vs 6 weeks, 0.63, 0.43-0.93, p = 0.020; TOI, median 164 vs 9 weeks, 0.51, 0.33-0.77, p = 0.001). CONCLUSION Adjuvant gefitinib is associated with improved HRQoL over VP, supporting its use in patients with stage II-IIIA (N1-N2), EGFR-mutant NSCLC.
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Affiliation(s)
- Jian Zeng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, University of Chinese Academy of Sciences, Hangzhou, China
| | - Wei-Min Mao
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, University of Chinese Academy of Sciences, Hangzhou, China.
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, University of Chinese Academy of Sciences, Hangzhou, China
| | - Tao-Bo Luo
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, University of Chinese Academy of Sciences, Hangzhou, China
| | - Yi-Long Wu
- Department of Pulmonary Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qing Zhou
- Department of Pulmonary Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xue-Ning Yang
- Department of Pulmonary Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Hong-Hong Yan
- Department of Pulmonary Cancer, Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Wen-Zhao Zhong
- Department of Pulmonary Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qun Wang
- Department of Thoracic Surgery, Fudan University Affiliated Zhongshan Hospital, Shanghai, China
| | - Song-Tao Xu
- Department of Thoracic Surgery, Fudan University Affiliated Zhongshan Hospital, Shanghai, China
| | - Lin Wu
- Department of Pulmonary Medicine, Hunan Cancer Hospital, Changsha, China
| | - Yi Shen
- Department of Thoracic Surgery, The Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Yong-Yu Liu
- Department of Thoracic Surgery, Liaoning Cancer Hospital, Shenyang, China
| | - Chun Chen
- Department of Thoracic Surgery, Fujian Medical University Union Hospital, Fuzhou, China
| | - Ying Cheng
- Department of Oncology, Jilin Provincial Tumor Hospital, Changchun, China
| | - Lin Xu
- Department of Thoracic Surgery, Jiangsu Cancer Hospital, Nanjing, China
| | - Jun Wang
- Department of Thoracic Surgery, The People's Hospital of Peking University, Beijing, China
| | - Ke Fei
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University, Shanghai, China
| | - Xiao-Fei Li
- Department of Thoracic Surgery, Tangdu Hospital, Xi'an, China
| | - Jian Li
- Department of Thoracic Surgery, Peking University First Hospital, Beijing, China
| | - Cheng Huang
- Department of Pulmonary Oncology, Fujian Cancer Hospital, Fuzhou, China
| | - Zhi-Dong Liu
- Department of Thoracic Surgery, Beijing Chest Hospital, Beijing, China
| | - Shun Xu
- Department of Thoracic Surgery, The First Hospital of China Medical University, Shenyang, China
| | - Ke-Neng Chen
- Department of Thoracic Surgery, Beijing Cancer Hospital, Beijing, China
| | - Shi-Dong Xu
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Lun-Xu Liu
- Department of Thoracic Surgery, West China Hospital of Sichuan University, Chengdu, China
| | - Ping Yu
- Department of Thoracic Oncology, Sichuan Cancer Hospital, Chengdu, China
| | - Bu-Hai Wang
- Department of Oncology, The Northern Jiangsu People's Hospital, Yangzhou, China
| | - Hai-Tao Ma
- Department of Thoracic Surgery, The First Affiliated Hospital of Suzhou University, Suzhou, China
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Hu X, Bao Y, Xu YJ, Zhu HN, Liu JS, Zhang L, Guo Y, Jin Y, Wang J, Ma HL, Xu XL, Song ZB, Tang HR, Peng F, Fang M, Kong Y, Chen MY, Dong BQ, Zhu L, Yu C, Yu XM, Hong W, Fan Y, Zhang YP, Chen PC, Zhao Q, Jiang YH, Zhou XM, Chen QX, Sun WY, Mao WM, Chen M. Final report of a prospective randomized study on thoracic radiotherapy target volume for limited-stage small cell lung cancer with radiation dosimetric analyses. Cancer 2019; 126:840-849. [PMID: 31714592 DOI: 10.1002/cncr.32586] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 12/08/2018] [Revised: 08/13/2019] [Accepted: 09/10/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND The thoracic radiotherapy (TRT) target volume for limited-stage small-cell lung cancer (SCLC) has been controversial for decades. In this report, the final results of a prospective randomized trial on the TRT target volume before and after induction chemotherapy are presented. METHODS After 2 cycles of etoposide and cisplatin, patients arm were randomized to receive TRT to the postchemotherapy or prechemotherapy tumor volume in a study arm and a control arm. Involved-field radiotherapy was received in both arms. TRT consisted of 1.5 grays (Gy) twice daily in 30 fractions to up to a total dose of 45 Gy. Lymph node regions were contoured, and intentional and incidental radiation doses were recorded. RESULTS The study was halted early because of slow accrual. Between 2002 and 2017, 159 and 150 patients were randomized to the study arm or the control arm, respectively; and 21.4% and 19.1% of patients, respectively, were staged using positron emission tomography/computed tomography (P = .31). With a median follow-up of 54.1 months (range, 19.9-165.0 months) in survivors, the 3-year local/regional progression-free probability was 58.2% and 65.5% in the study and control arms, respectively (P = .44), and the absolute difference was -7.3% (95% CI, -18.2%, 3.7%). In the study and control arms, the median overall survival was 21.9 months and 26.6 months, respectively, and the 5-year overall survival rate was 22.8% and 28.1%, respectively (P = .26). Grade 3 esophagitis was observed in 5.9% of patients in the study arm versus 15.5% of those in the control arm (P = .01). The isolated out-of-field failure rate was 2.6% in the study arm versus 4.1% in the control arm (P = .46), and all such failures were located in the supraclavicular fossa or contralateral hilum. The regions 7, 3P, 4L, 6, 4R, 5, and 2L received incidental radiation doses >30 Gy. CONCLUSIONS TRT could be limited to the postchemotherapy tumor volume, and involved-field radiotherapy could be routinely applied for limited-stage SCLC.
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Affiliation(s)
- Xiao Hu
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - Yong Bao
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yu-Jin Xu
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - Hui-Neng Zhu
- Department of Pathology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Jin-Shi Liu
- Department of Thoracic Surgery, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Li Zhang
- Department of Medical Oncology, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ying Guo
- Clinical Trials Center, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Ying Jin
- Department of Medical Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Jin Wang
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - Hong-Lian Ma
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - Xiao-Ling Xu
- Department of Medical Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Zheng-Bo Song
- Department of Medical Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Hua-Rong Tang
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - Fang Peng
- Department of Radiation Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Min Fang
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - Yue Kong
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - Meng-Yuan Chen
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - Bai-Qiang Dong
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
| | - Liang Zhu
- Department of Pathology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Chang Yu
- Department of Pathology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Xin-Min Yu
- Department of Medical Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Wei Hong
- Department of Medical Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Yun Fan
- Department of Medical Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Yi-Ping Zhang
- Department of Medical Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Peng-Cheng Chen
- Department of Thoracic Surgery, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Qiang Zhao
- Department of Thoracic Surgery, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - You-Hua Jiang
- Department of Thoracic Surgery, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Xin-Ming Zhou
- Department of Thoracic Surgery, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Wen-Yong Sun
- Department of Pathology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Wei-Min Mao
- Department of Thoracic Surgery, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Hangzhou, China
| | - Ming Chen
- Department of Radiation Oncology, Institute of Cancer Research and Basic Medical Sciences and University Cancer Hospital, Chinese Academy of Sciences, Zhejiang Cancer Hospital, Zhejiang Provincial Key Laboratory of Radiation Oncology, Hangzhou, China
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Xu ZK, Chen G, Li FC, Chen QX. [Minimally invasive surgery for the severe degenerative lumbar scoliosis: two stage protocol]. Zhonghua Yi Xue Za Zhi 2018; 98:1996-2001. [PMID: 29996599 DOI: 10.3760/cma.j.issn.0376-2491.2018.25.006] [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 the surgical outcome of minimally invasive surgery(MIS) for severe degenerative lumbar scoliosis(DLS) and put forward a two-stage MIS surgical strategy. Methods: Prospective study of MISDEF Ⅲ DLS patients from June 2016 to August 2017 in the Second Affiliated Hospital of Zhejiang University was carried out, excluding the patients whose apex vertebrae of scoliosis was above L(1/2) level or whose facet joint got spontaneous fusion. Fifty-three patients were included in this study for staging evaluation and MIS surgical treatment. Information was recorded, including gender, age, body mass index, follow-up period, pelvic incidence (PI), blood loss, operation time, visual analogue pain score (VAS), Oswestry disability index (ODI), complications in the perioperative period and follow-up period, and also the radiographic parameters such as scoliosis Cobb angle, the mismatch between pelvic incidence and lumbar lordosis (PI-LL), sagittalvertical axis (SVA), coronal balance (CB) before and after each stage of surgery or latest follow-up. The paired-samples t test was used to analyze the effectiveness of staging surgery. Results: Fifty-three patients (18 males and 35 females) were included in this study. All patients had completed clinical and the follow-up records, with an average follow-up period of 11.52 months (6-20 months). A total of 168 segments fusions were performed with CLIF, 113 segments were performed with anterior column realignment (ACR), the average correct angle was 15.6°±6.3°(7°-28°) in sagittal plane each level. After the stage Ⅰ surgery, lumbar scoliosis cobb had been corrected for 55.35%, after the stage Ⅱ surgery, rate of correction was 75.6%. PI-LL had been matched (-32.8°±14.9° to -2.5°±9.4°), SVA was changed from 5.7 cm to 0.6 cm, the stage Ⅰ rate of correction was 80.3 and stage Ⅱ was 88.8%, pelvic tilt (PT), lumbar lordosis (LL) and CB had been restored; 13 (24.5%) patients were performed paraspinal approach transforaminal decompression. The posterior minimally invasive fixation indexes: 11(20.8%) patients were performed paraspinal approach transforaminal multi-segment transforaminal osteotomy (TFO) and internal fixation; 36(67.92%) cases were performed paraspinal approach transforaminal multi-segment fixation; 6(11.33%) patients were treated with percutaneous pedicle screw fixation. The average fixed segments was 7.4±1.4 in each patient. The blood loss of stage Ⅰ and stage Ⅱ operation was (157±71) ml, (343±224)ml, respectively. The operation time was (214±60) min, (190±54)min respectively in the two stage operations. The low back pain and leg pain VAS score and ODI improved after the stage Ⅰ and Ⅱ surgery (t=17.948, 10.099, 14.619, all P<0.001). Conclusions: MIS for the severe degenerative lumbar scoliosis can achieve good clinical outcome and deformity correction. The two-stage protocol has the advantages of less complications and is well-tolerated.
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Affiliation(s)
- Z K Xu
- Department of Orthopedics, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310052, China
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Wu J, Chen QX, Shen DJ, Zhao Q. A prediction model for lymph node metastasis in T1 esophageal squamous cell carcinoma. J Thorac Cardiovasc Surg 2017; 155:1902-1908. [PMID: 29233596 DOI: 10.1016/j.jtcvs.2017.11.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 10/25/2017] [Accepted: 11/06/2017] [Indexed: 01/14/2023]
Abstract
BACKGROUND Endoscopic resection is widely used for the treatment of T1 esophageal cancer, but it cannot be used to treat lymph node metastasis (LNM). This study aimed to develop a prediction model for LNM in patients with T1 esophageal squamous cell carcinoma. METHODS A prospectively maintained database of all patients who underwent surgery for esophageal cancer between January 2002 and June 2010 was retrospectively reviewed, and patients with T1 squamous cell carcinoma were included in this study. Correlations between LNM and clinicopathological variables were evaluated using univariable and multivariable logistic regression analyses. The penalized maximum likelihood method was used to estimate regression coefficients. A prediction model was developed and internally validated using a bootstrap resampling method. Model performance was evaluated in terms of calibration, discrimination, and clinical usefulness. RESULTS A total of 240 patients (197 male, 43 female) with a mean age of 57.9 years (standard deviation ± 8.3 years) were included in the analysis. The incidence of LNM was 16.3%. The prediction model consisted of four variables: grade, T1 stage, tumor location and tumor length. The model showed good calibration and good discrimination with a C-index of 0.787 (95% confidence interval [CI], 0.711-0.863). After internal validation, the optimism-corrected C-index was 0.762 (95% CI, 0.686-0.838). Decision curve analysis demonstrated that the prediction model was clinically useful. CONCLUSIONS Our prediction model can facilitate individualized prediction of LNM in patients with T1 esophageal squamous cell carcinoma. This model can aid surgical decision making in patients who have undergone endoscopic resection.
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Affiliation(s)
- Jie Wu
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China.
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
| | - Di-Jian Shen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
| | - Qiang Zhao
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
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Chen QX, Zhou ZB, Zhou YH. [A study on effects of immediate bone grafting at mandibular first molar fresh extraction socket on maintaining alveolar bone height after space closure]. Zhonghua Kou Qiang Yi Xue Za Zhi 2017; 52:649-655. [PMID: 29972942 DOI: 10.3760/cma.j.issn.1002-0098.2017.11.001] [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 the effect of immediate bone grafting at mandibular first molar extraction socket on maintaining alveolar bone height after space closure. Methods: Thirty adult orthodontic patients who need to extract mandibular first molar, totally 38 target teeth, were included. The samples were divided into two groups randomly: graft group and non-graft group. All extraction space was closed orthodontically. Dental models of all patients were taken before extraction (T0), before space closure(T1) and after space closure (T2). The distance, time of the space closure and the velocity of tooth movement were recorded. Probing depth (PD) and clinical attachment level (CAL) at six sites (mesial buccal, buccal, mesial lingual, lingual, distal buccal and distal lingual) on adjacent teeth were measured before extraction (T0) and after space closure (T2). Cone-beam CT (CBCT) was taken at T0 and T2 to compare the changes of alveolar bone height at six sites on adjacent teeth using Invivo Dental 5.0 software. Results: The extraction space in both graft group and non-graft group was closed successfully. However, the space in graft group was closed more slowly than in non-graft group. In graft group, PD and CAL at the six sites on both the second molar and the second premolar did not change significantly after space closure, and CBCT showed that the alveolar bone height of the second premolar had no significant difference after treatment. In non-graft group, alveolar bone height decreased in both adjacent teeth and periodontal attachment loss was found after space closure. On average, alveolar bone height and periodontal attachment of the second premolar decreased (0.75±0.16) mm and (0.64±0.15) mm, respectively. Meanwhile, alveolar bone height and periodontal attachment of the second molar decreased (0.79±0.23) mm and (0.80±0.24) mm, respectively. Conclusions: Bone graft immediately after mandibular first molar extraction could delay alveolar bone resorption and preserve the periodontal attachment of the adjacent teeth during space closure. However, the procedure could slow down tooth movement.
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Affiliation(s)
- Q X Chen
- Department of Orthodontics, Stomatology Hospital of Guangzhou Medical University & Guangzhou Institute of Oral Disease & Key Laboratory of Oral Medicine, Guangzhou 510140, China
| | - Z B Zhou
- Department of Oral and Maxillofacial Surgery, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - Y H Zhou
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Chen QX, Sha YG, Zhao F. [A case of Gitelman syndrome]. Zhonghua Er Ke Za Zhi 2016; 54:863-864. [PMID: 27806799 DOI: 10.3760/cma.j.issn.0578-1310.2016.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Feng JF, Yang X, Chen S, Zhao Q, Chen QX. Prognostic Value of Plasma D-dimer in Patients with Resectable Esophageal Squamous Cell Carcinoma in China. J Cancer 2016; 7:1663-1667. [PMID: 27698903 PMCID: PMC5039387 DOI: 10.7150/jca.15216] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Accepted: 04/26/2016] [Indexed: 11/05/2022] Open
Abstract
Background: Plasma D-dimer is closely related to prognosis in several cancers. The aim of the current study was to determine the prognostic value of plasma D-dimer in patients with resectable esophageal squamous cell carcinoma (ESCC). Methods: A total of 337 patients with resectable ESCC were enrolled in this retrospective study. The 5-year cancer-specific survival (CSS) was calculated by Kaplan-Meier method. Cox regression analyses were performed to evaluate the prognostic factors. A nomogram model was also performed to predict the cancer prognosis. Results: In our study, there were 242 patients (71.8%) with plasma D-dimer ≤ 0.5 μg/ml and 95 patients (28.2%) with plasma D-dimer > 0.5 μg/ml. There was a significantly better 5-year CSS in patients with plasma D-dimer ≤ 0.5 μg/ml than patients with plasma D-dimer > 0.5 μg/ml (35.5% vs. 21.1%, P < 0.001). Multivariate analyses reported that plasma D-dimer was an independent prognostic factor in patients with resectable ESCC (P < 0.001). In addition, a nomogram was also performed to predict the CSS. The Harrell's c-index was 0.68. Conclusion: We conclude that plasma D-dimer was an independent prognostic biomarker in patients with resectable ESCC.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
| | - Xun Yang
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
| | - Sheng Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
| | - Qiang Zhao
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
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Wu J, Chen QX. Prognostic and predictive significance of tumor length in patients with esophageal squamous cell carcinoma undergoing radical resection. BMC Cancer 2016; 16:394. [PMID: 27387460 PMCID: PMC4936257 DOI: 10.1186/s12885-016-2417-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 11/30/2015] [Accepted: 06/27/2016] [Indexed: 11/11/2022] Open
Abstract
Background The objective of this study was to investigate the prognostic and predictive significance of tumor length in patients with esophageal squamous cell carcinoma undergoing radical resection. Methods Tumor length and other clinicopathological variables were retrospectively evaluated in 1435 patients with squamous cell carcinoma treated with radical resection between 2003 and 2010. Tumor length was analyzed as categorical and continuous variable. Associations with overall survival were assessed with Cox proportional hazards models. Model-based nomograms were constructed. Predictive accuracy was measured with C-index. Decision curve analysis was used to evaluate clinical usefulness of prediction models. Results Both categorically and continuously coded tumor length were independent prognostic factors in multivariable analysis. Adding categorically and continuously coded tumor length to TNM staging model increased predictive accuracy by 0.2 and 0.4 % respectively. Decision curve analysis revealed that the models built by the addition of categorically or continuously coded tumor length did not perform better than TNM staging model. Conclusions Tumor length is an independent prognostic factor in patients with esophageal squamous cell carcinoma treated with radical resection. It increases predictive accuracy of TNM staging system for overall survival in these patients. But it does not increase clinical usefulness of TNM staging system as a prediction model. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2417-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jie Wu
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, 1 East Banshan Road, Hangzhou, 310022, Zhejiang Province, China.
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, 1 East Banshan Road, Hangzhou, 310022, Zhejiang Province, China
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Han ZT, Chen QX. Curative effect and costs of surgical and gamma knife treatments on intractable epilepsy caused by temporal-hippocampal sclerosis. Genet Mol Res 2015; 14:8555-62. [PMID: 26345786 DOI: 10.4238/2015.july.31.3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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 aimed to investigate the curative effect and costs of surgical and gamma knife treatments on intractable epilepsy caused by temporal-hippocampal sclerosis. The subjects comprised patients who suffered from intractable epilepsy caused by temporal-hippocampal sclerosis and received treatment in the Department of Neurosurgery of our hospital between 2010 and 2011. After obtaining their consent, patients were evaluated and selected to receive surgical or gamma knife treatments. In the surgical group, the short-term curative rate was 92.60% and the average cost was US$ 1311.50 while in the gamma knife group, the short-term curative rate was 53.79%, and the average cost was US$ 2786.90. Both surgical and gamma knife treatments of intractable epilepsy caused by temporal-hippocampal sclerosis are safe and effective, but the short-term curative effect of surgical treatment is better than that of gamma knife, and its cost is lower.
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Affiliation(s)
- Z T Han
- Neurosurgery Department, Renmin Hospital of Wuhan University, Hubei Wuhan Zhangzhidong, Hubei, China
| | - Q X Chen
- Neurosurgery Department, Renmin Hospital of Wuhan University, Hubei Wuhan Zhangzhidong, Hubei, China
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17
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Abstract
Background Recent studies have shown that C-reactive protein (CRP) is a useful predictive factor in several cancers; however, its role in esophageal cancer (EC) is controversial. Methods A systematic literature search was performed using Medline, PubMed, and Web of Science to analyze the prognostic value of serum CRP in patients with EC. A meta-analysis was performed to assess the association between serum CRP and overall survival (OS) in patients with EC. Results A total of eight studies involving 1,471 patients were included in our study. Our pooled results demonstrated that a high level of serum CRP was associated with poor OS (hazard ratio [HR]: 1.40, 95% confidence interval [CI]: 1.25–1.57, I2=81.3%, P<0.0001). Subgroup analyses were performed in further investigations. When the patients were segregated according to treatment, pathological type, and cut-off level, high levels of serum CRP were found to be significantly correlated with OS. Conclusion Our meta-analysis revealed that high levels of serum CRP were significantly associated with poor OS in patients with EC.
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Affiliation(s)
- Ying Huang
- Department of Operating Theatre, Zhejiang Cancer Hospital, Hangzhou, People's Republic of China
| | - Ji-Feng Feng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, People's Republic of China
| | - Jin-Shi Liu
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, People's Republic of China
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, People's Republic of China
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Feng JF, Huang Y, Chen QX. The combination of platelet count and neutrophil lymphocyte ratio is a predictive factor in patients with esophageal squamous cell carcinoma. Transl Oncol 2014; 7:632-7. [PMID: 25389458 PMCID: PMC4225691 DOI: 10.1016/j.tranon.2014.07.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 07/29/2014] [Accepted: 07/30/2014] [Indexed: 12/13/2022] Open
Abstract
OBJECTIVE: The prognostic value of inflammation indexes in esophageal cancer was not established. In this study, therefore, both prognostic values of Glasgow prognostic score (GPS) and combination of platelet count and neutrophil lymphocyte ratio (COP-NLR) in patients with esophageal squamous cell carcinoma (ESCC) were investigated and compared. METHODS: This retrospective study included 375 patients who underwent esophagectomy for ESCC. The cancer-specific survival (CSS) was calculated by the Kaplan-Meier method, and the difference was assessed by the log-rank test. The GPS was calculated as follows: patients with elevated C-reactive protein (> 10 mg/l) and hypoalbuminemia (< 35 g/l) were assigned to GPS2. Patients with one or no abnormal value were assigned to GPS1 or GPS0, respectively. The COP-NLR was calculated as follows: patients with elevated platelet count (> 300 × 109/l) and neutrophil lymphocyte ratio (> 3) were assigned to COP-NLR2. Patients with one or no abnormal value were assigned to COP-NLR1 or COP-NLR0, respectively. RESULTS: The 5-year CSS in patients with GPS0, 1, and 2 was 50.0%, 27.0%, and 12.5%, respectively (P < .001). The 5-year CSS in patients with COP-NLR0, 1, and 2 was 51.8%, 27.0%, and 11.6%, respectively (P < .001). Multivariate analysis showed that both GPS (P = .003) and COP-NLR (P = .003) were significant predictors in such patients. In addition, our study demonstrated a similar hazard ratio (HR) between COP-NLR and GPS (HR = 1.394 vs HR = 1.367). CONCLUSIONS: COP-NLR is an independent predictive factor in patients with ESCC. We conclude that COP-NLR predicts survival in ESCC similar to GPS.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, China ; Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Hangzhou 310022, Zhejiang Province, China
| | - Ying Huang
- Department of Nursing, Zhejiang Cancer Hospital, Hangzhou, China
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, China ; Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Hangzhou 310022, Zhejiang Province, China
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Feng JF, Zhao Q, Chen QX. Prognostic value of subcarinal lymph node metastasis in patients with esophageal squamous cell carcinoma. Asian Pac J Cancer Prev 2014; 14:3183-6. [PMID: 23803101 DOI: 10.7314/apjcp.2013.14.5.3183] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
PURPOSE The 7th edition of the American Joint Committee on Cancer Staging Manual for esophageal cancer (EC) categorizes N stage according to the number of metastatic lymph nodes (LNs), irrespective of the site. The aim of this study was to determine the prognostic value of subcarinal LN metastasis in patients undergoing esophagectomy for esophageal squamous cell carcinoma (ESCC). METHODS A retrospective analysis of 507 consecutive patients with ESCC was conducted. Potential clinicopathological factors that could influence subcarinal LN metastasis were statistically analyzed. Univariate and multivariate analyses were also performed to evaluate the prognostic parameters for survival. RESULTS The frequency of subcarinal LN metastasis was 22.9% (116/507). Logistic regression analysis showed that tumor length (>3 cm vs ≤ 3 cm; P=0.027), tumor location (lower vs upper/middle; P=0.009), vessel involvement (Yes vs No; P=0.001) and depth of invasion (T3-4a vs T1-2; P=0.012) were associated with 2.085-, 1.810-, 2.535- and 2.201- fold increases, respectively, for risk of subcarinal LN metastasis. Multivariate analyses showed that differentiation (poor vs well/moderate; P=0.001), subcarinal LN metastasis (yes vs no; P=0.033), depth of invasion (T3-4a vs T1-2; P=0.014) and N staging (N1-3 vs N0; P=0.001) were independent prognostic factors. In addition, patients with subcarinal LN metastasis had a significantly lower 5-year cumulative survival rate than those without (26.7% vs 60.9%; P<0.001). CONCLUSIONS Subcarinal LN metastasis is a predictive factor for long-term survival in patients with ESCC.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, Zhejiang Province, China.
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Wu J, Chen QX, Zhou XM, Mao WM, Krasna MJ. Does recurrent laryngeal nerve lymph node metastasis really affect the prognosis in node-positive patients with squamous cell carcinoma of the middle thoracic esophagus? BMC Surg 2014; 14:43. [PMID: 25016483 PMCID: PMC4105105 DOI: 10.1186/1471-2482-14-43] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Accepted: 07/09/2014] [Indexed: 11/17/2022] Open
Abstract
Background Recurrent laryngeal nerve (RLN) lymph node metastasis used to be shown a predictor for poor prognosis in esophageal squamous cell carcinoma. The purpose of this study was to evaluate the prognostic impact of RLN node metastasis and the number of metastatic lymph nodes in node-positive patients with squamous cell carcinoma of middle thoracic esophagus. Methods A cohort of 235 patients who underwent curative surgery for squamous cell carcinoma of middle thoracic esophagus was investigated. The prognostic impact was evaluated by univariate and multivariate analyses. Results Lymph node metastasis was found in 133 patients. Among them, 81 had metastatic RLN nodes, and 52 had at least one positive node but no RLN nodal involvement. The most significant difference in survival was detected between patients with metastatic lymph nodes below and above a cutoff value of six (P < 0.001). Multivariate analysis revealed that the number of metastatic lymph nodes was a significant factor associated with overall survival (P < 0.001), but RLN lymph node metastasis was not (P = 0.865). Conclusions RLN Lymph node metastasis is not, but the number of metastatic nodes is a prognostic predictor in node-positive patients with squamous cell carcinoma of the middle thoracic esophagus.
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Affiliation(s)
- Jie Wu
- Department of Thoarcic Surgery, Zhejinang Cancer Hospital, 38 Guangji Road, Hangzhou 310022, China.
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Feng JF, Chen QX. Prognostic significance of preoperative CA72-4 in patients with esophageal squamous cell carcinoma. Arch Iran Med 2014; 16:338-42. [PMID: 23725066 DOI: 013166/aim.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Carbohydrate antigen 72-4 (CA72-4) is a tumor marker for gastric cancer however its role in esophageal cancer (EC) is still controversial. The aim of this study is to determine the prognostic value of CA72-4 in patients with esophageal squamous cell carcinoma (ESCC). METHODS From January 2006 to December 2007 we conducted a retrospective analysis of 192 consecutive patients with ESCC. A receiver operating characteristic (ROC) curve for survival prediction was plotted to verify the optimum cut-off point for CA72-4. Univariate and multivariate analyses were performed to evaluate the prognostic parameters. RESULTS The positive rate for CA 72-4 in our study was 18.8% (36/192). The ROC curve for survival prediction showed the optimum cut-off point for CA 72-4 to be 3.95 U/mL. Patients with CA 72-4 ≤3.95 U/mL had a significantly better five-year overall survival (51.4% vs. 13.6%; P<0.001) and relapse-free survival (49.5% vs. 19.8%; P < 0.001) than those with CA 72-4 levels >3.95 U/mL. Multivariate analyses showed that CA 72-4 was a significant predictor of both overall survival and relapse-free survival. CA 72-4 levels >3.95 U/mL had a hazard ratio (HR) of 2.129 [95% confidence interval (CI): 1.436-3.155; P < 0.001] for overall survival and 2.151 (95% CI: 1.449-3.192; P < 0.001) for relapse-free survival. CONCLUSIONS CA 72-4 is an independent predictive factor for long-term survival in ESCC. We conclude that 3.95 U/mL may be the optimum cut-off point for CA72-4 in predicting survival in ESCC. Although CA 72-4 shows significant association with poorer prognosis, its low sensitivity limits clinical application.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
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Zhu SK, Tian YD, Zhang S, Chen QX, Wang QY, Han RL, Kang XT. Adjacent SNPs in the transcriptional regulatory region of the FADS2 gene associated with fatty acid and growth traits in chickens. Genet Mol Res 2014; 13:3329-36. [PMID: 24841665 DOI: 10.4238/2014.april.29.11] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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
Delta-6 fatty acid desaturases are rate-limiting desaturases involved in metabolic processes of fatty acids, and they are encoded by the FADS2 gene. In the current study, an F2 resource population of Gushi chickens crossed with Anak broilers was used to investigate the genetic effects of the chicken FADS2. Two adjacent single nucleotide polymorphisms (SNPs) (g.4290C>G and g.4291C>A) were identified in the transcriptional regulatory region of the FADS2 gene by means of polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and created restriction site-PCR-RFLP. Associations between the two SNPs with chicken fatty acid contents and growth traits were determined using linkage disequilibrium, haplotype construction, and association analysis. The two SNPs and their haplotype combinations were significantly associated with linoleic acid (C18:2), α-linolenic acid (C18:3), arachidonic acid (C20:4), body weight (BW)2, BW4, BW6, shank girth (SG)4, and breast bone length 4 (P<0.05). These results suggested that the SNPs of the FADS2 gene affected the content of essential fatty acid in muscle, and played a role in the early-stage growth rate of chickens.
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Affiliation(s)
- S K Zhu
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Y D Tian
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - S Zhang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Q X Chen
- Henan Innovative Engineering Research Center of Poultry Germplasm Resource, Zhengzhou, China
| | - Q Y Wang
- Xuchang University, Xuchang, China
| | - R L Han
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - X T Kang
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
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Feng JF, Huang Y, Chen QX. Preoperative platelet lymphocyte ratio (PLR) is superior to neutrophil lymphocyte ratio (NLR) as a predictive factor in patients with esophageal squamous cell carcinoma. World J Surg Oncol 2014; 12:58. [PMID: 24641770 PMCID: PMC3973187 DOI: 10.1186/1477-7819-12-58] [Citation(s) in RCA: 185] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 03/03/2014] [Indexed: 12/15/2022] Open
Abstract
Background Recent studies have shown that the presence of systemic inflammation correlates with poor survival in various cancers. The aim of this study was to determinate the prognostic value of the neutrophil lymphocyte ratio (NLR) and the platelet lymphocyte ratio (PLR) in patients with esophageal squamous cell carcinoma (ESCC). Methods Preoperative NLR and PLR were evaluated in 483 patients undergoing esophagectomy for ESCC from January 2005 to December 2008. The prognostic significance of both markers was then determined by both uni- and multivariate analytical methods. Receiver operating characteristic (ROC) curves were also plotted to verify the accuracy of NLR and PLR for survival prediction. Results High preoperative NLR (≥3.5 versus < 3.5, P = 0.039) and PLR (≥150 versus < 150, P < 0.001) were significantly associated with poor overall survival in multivariate analysis. However, our study demonstrated a better discrimination for the PLR in terms of hazard ratio(HR) than the NLR (HR = 1.840 versus HR = 1.339). Patients with NLR ≥3.5 had significantly poorer overall survival compared to NLR <3.5 (35.4% versus 57.7%, P < 0.001). Patients with PLR ≥150 also had significantly poorer overall survival compared to patients with PLR <150 (32.7% versus 63.5%, P < 0.001). The area under the curve (AUC) was 0.658 (95% confidence interval (CI): 0.610 to 0.706, P < 0.001) for NLR and 0.708 (95% CI: 0.662 to 0.754, P < 0.001) for PLR, indicating that PLR was superior to NLR as a predictive factor in ESCC. Conclusions Preoperative NLR and PLR were significant predictors of overall survival in patients with ESCC. However, PLR is superior to NLR as a predictive factor in patients with ESCC.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, No,38 Guangji Road, Banshan Bridge, Hangzhou 310022, China.
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Abstract
BACKGROUND/AIMS Recent studies have revealed that Glasgow prognostic score (GPS), an inflammation-based prognostic score, is inversely related to prognosis in a variety of cancers; high levels of GPS is associated with poor prognosis. However, few studies regarding GPS in esophageal cancer (EC) are available. The aim of this study was to determine whether the GPS is useful for predicting cancer-specific survival (CSS) of patients for esophageal squamous cell carcinoma (ESCC). PATIENTS AND METHODS The GPS was calculated on the basis of admission data as follows: Patients with elevated C-reactive protein (CRP) level (>10 mg/L) and hypoalbuminemia (<35 g/L) were assigned to GPS2. Patients with one or no abnormal value were assigned to GPS1 or GPS0, respectively. RESULTS Our study showed that GPS was associated with tumor size, depth of invasion, and nodal metastasis (P<0.001). In addition, there was a negative correlation between the serum CRP and albumin (r=-0.412, P<0.001). The 5-year CSS in patients with GPS0, GPS1, and GPS2 were 60.8%, 34.7% and 10.7%, respectively (P<0.001). Multivariate analysis showed that GPS was a significant predictor of CSS. GPS1-2 had a hazard ratio (HR) of 2.399 [95% confidence interval (CI): 1.805-3.190] for 1-year CSS (P<0.001) and 1.907 (95% CI: 1.608-2.262) for 5-year CSS (P<0.001). CONCLUSION High levels of GPS is associated with tumor progression. GPS can be considered as an independent prognostic factor in patients who underwent esophagectomy for ESCC.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, No. 38 Guangji Road, Banshan Bridge, Hangzhou, China,Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Zhejiang Province, Hangzhou, China,Address for correspondence: Dr. Ji-Feng Feng, Department of Thoracic Surgery, Zhejiang Cancer Hospital, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, No. 38 Guangji Road, Banshan Bridge, Hangzhou - 310 022, China. E-mail:
| | - Qiang Zhao
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, No. 38 Guangji Road, Banshan Bridge, Hangzhou, China,Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Zhejiang Province, Hangzhou, China
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, No. 38 Guangji Road, Banshan Bridge, Hangzhou, China,Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Zhejiang Province, Hangzhou, China
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Wu J, Chen QX, Teng LS, Krasna MJ. Prognostic significance of positive circumferential resection margin in esophageal cancer: a systematic review and meta-analysis. Ann Thorac Surg 2013; 97:446-53. [PMID: 24365211 DOI: 10.1016/j.athoracsur.2013.10.043] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Revised: 10/01/2013] [Accepted: 10/11/2013] [Indexed: 12/23/2022]
Abstract
BACKGROUND To assess the prognostic significance of positive circumferential resection margin on overall survival in patients with esophageal cancer, a systematic review and meta-analysis was performed. METHODS Studies were identified from PubMed, EMBASE, and Web of Science. Survival data were extracted from eligible studies to compare overall survival in patients with a positive circumferential resection margin with patients having a negative circumferential resection margin according to the Royal College of Pathologists (RCP) criteria and the College of American Pathologists (CAP) criteria. Survival data were pooled with hazard ratios (HRs) and their corresponding 95% confidence intervals (CIs). A random-effects model meta-analysis on overall survival was performed. RESULTS The pooled HRs for survival were 1.510 (95% CI, 1.329-1.717; p<0.001) and 2.053 (95% CI, 1.597-2.638; p<0.001) according to the RCP and CAP criteria, respectively. Positive circumferential resection margin was associated with worse survival in patients with T3 stage disease according to the RCP (HR, 1.381; 95% CI, 1.028-1.584; p=0.001) and CAP (HR, 2.457; 95% CI, 1.902-3.175; p<0.001) criteria, respectively. Positive circumferential resection margin was associated with worse survival in patients receiving neoadjuvant therapy according to the RCP (HR, 1.676; 95% CI, 1.023-2.744; p=0.040) and CAP (HR, 1.847; 95% CI, 1.226-2.78; p=0.003) criteria, respectively. CONCLUSIONS Positive circumferential resection margin is associated with poor prognosis in patients with esophageal cancer, particularly in patients with T3 stage disease and patients receiving neoadjuvant therapy.
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Affiliation(s)
- Jie Wu
- Department of Surgical Oncology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China; Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Hangzhou, China
| | - Li-song Teng
- Department of Surgical Oncology, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Mark J Krasna
- Meridian Cancer Care, Jersey Shore University Medical Center, Neptune, New Jersey
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Abstract
Background The prognostic nutritional index (PNI) is related to the prognosis in many cancers; however, its role in esophageal cancer is still controversial. Further, controversy exists concerning the optimal cut-off points for PNI to predict survival. The aim of this study was to determine the prognostic value of PNI and propose the optimal cut-off points for PNI in predicting cancer-specific survival (CSS) in esophageal squamous cell carcinoma (ESCC). Methods This retrospective study included 375 patients who underwent esophagectomy for ESCC. The PNI was calculated as 10 × serum albumin (g/dL) + 0.005 × total lymphocyte count (per mm3). With the help of the fit line on the scatter plot, we classified the patients into three categories according to the PNI, ie, >52, 42–52, and <42. Results Our study showed that PNI was associated with tumor length (P=0.007), T grade (P=0.001), and N staging (P<0.001). The 5-year CSS in patients with PNI <42, 42–52, and >52 were 11.0%, 39.1%, and 55.2%, respectively (P<0.001). Multivariate analysis showed that PNI was a significant predictor of CSS (42–52 versus >52, P=0.011; <42 versus PNI >52, P<0.001). Conclusion PNI is a predictive factor for long-term survival in ESCC. The survival rate of ESCC can be discriminated between three groups, ie, PNI <42, 42–52, and >52.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Hangzhou, People's Republic of China
| | - Qi-Xun Chen
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Hangzhou, People's Republic of China
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Feng JF, Zhao HG, Liu JS, Chen QX. Significance of preoperative C-reactive protein as a parameter in patients with small cell carcinoma of the esophagus. Onco Targets Ther 2013; 6:1147-51. [PMID: 24009425 PMCID: PMC3758215 DOI: 10.2147/ott.s50039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [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: 01/30/2023] Open
Abstract
Background C-reactive protein (CRP) is inversely related to prognosis in many cancers, however, no studies regarding the predictive value of CRP in small cell carcinoma of the esophagus (SCCE) are available. The aim of this study was to determine the prognostic value of preoperative CRP in patients with SCCE. Methods From January 2001 to December 2010, a retrospective analysis of 43 consecutive patients with SCCE was conducted. Univariate and multivariate analyses were performed to evaluate the prognostic parameters. Results In our study, elevated CRP levels (>10 mg/L) were found in 16 patients (37.2%). CRP levels were significantly higher in patients with deeply invasive tumors (P = 0.018) and those associated with nodal metastasis (P = 0.018). Patients with CRP ≤10 mg/L had a significantly better overall survival than patients with CRP >10 mg/L (25.9% vs 6.3%, P = 0.004). Multivariate analyses showed that CRP was a significant predictor for overall survival. CRP >10 mg/L had a hazard ratio of 2.756 (95% confidence interval: 1.115–6.813, P = 0.028) for overall survival. Conclusion Preoperative CRP is an independent predictive factor for long-term survival in patients with SCCE.
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Affiliation(s)
- Ji-Feng Feng
- Department of Thoracic Surgery, Zhejiang Cancer Hospital, Key Laboratory Diagnosis and Treatment Technology on Thoracic Oncology, Banshan Bridge, Hangzhou, People's Republic of China
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Feng JF, Huang Y, Chen QX. Prognostic Value of Preoperative Serum CA 242 in Esophageal Squamous Cell Carcinoma Cases. Asian Pac J Cancer Prev 2013; 14:1803-6. [DOI: 10.7314/apjcp.2013.14.3.1803] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Wu J, Chen QX, Zhou XM, Mao WM, Krasna MJ, Teng LS. Prognostic significance of solitary lymph node metastasis in patients with squamous cell carcinoma of middle thoracic esophagus. World J Surg Oncol 2012; 10:210. [PMID: 23036154 PMCID: PMC3534583 DOI: 10.1186/1477-7819-10-210] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2012] [Accepted: 09/18/2012] [Indexed: 12/11/2022] Open
Abstract
Background The aim of this study is to compare clinical outcomes between patients with solitary lymph node metastasis and node-negative (N0) patients in squamous cell carcinoma of the middle thoracic esophagus. Methods A series of 135 patients with squamous cell carcinoma of the middle thoracic esophagus were retrospectively investigated. There were 33 patients with solitary lymph node metastasis and 102 N0 patients. Skip metastasis in 33 patients with solitary lymph node metastasis was defined according to three criteria: Japanese Society for Esophageal Disease (JSED), American Joint Commission on Cancer (AJCC), and the anatomical compartment. Results In 33 patients with solitary lymph node metastasis, skip metastasis was shown in 13, 23, and 8 patients according JSED, AJCC and anatomical compartment respectively. The 5-year survival rates for N0 patients and patients with solitary lymph node metastasis were 58% and 32% respectively (P =0.008). Multivariate analysis revealed that skip metastasis was not an independent prognostic factor. Conclusions For patients with middle thoracic esophageal squamous cell carcinoma, solitary lymph node metastasis has a negative impact on survival compared with N0 disease; skip metastasis, however, is comparable to N0 diseases in predicting prognosis.
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Affiliation(s)
- Jie Wu
- Department of Surgical Oncology, First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou 310033, China
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30
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Liang CZ, Li H, Tao YQ, Zhou XP, Yang ZR, Xiao YX, Li FC, Han B, Chen QX. Dual delivery for stem cell differentiation using dexamethasone and bFGF in/on polymeric microspheres as a cell carrier for nucleus pulposus regeneration. J Mater Sci Mater Med 2012; 23:1097-1107. [PMID: 22327946 DOI: 10.1007/s10856-012-4563-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Accepted: 01/25/2012] [Indexed: 05/31/2023]
Abstract
This study aimed to investigate the feasibility of the nanostructured 3D poly(lactide-co-glycolide) (PLGA) constructs, which are loaded with dexamethasone (DEX) and growth factor embedded heparin/poly(L-lysine) nanoparticles via a layer-by-layer system, to serve as an effective scaffold for nucleus pulposus (NP) tissue engineering. Our results demonstrated that the microsphere constructs were capable of simultaneously releasing basic fibroblast growth factor and DEX with approximately zero order kinetics. The dual bead microspheres showed no cytotoxicity, and promoted the proliferation of the rat mesenchymal stem cells (rMSCs) by lactate dehydrogenase assay and CCK-8 assay. After 4 weeks of cultivation in vitro, the rMSCs-scaffold hybrids contained significantly higher levels of sulfated GAG/DNA and collagen type II than the control samples. Moreover, quantitative real time PCR analysis revealed that the expression of disc-matrix proteins including collagen type II, aggrecan, and versican in the rMSCs-scaffold hybrids was significantly higher than that in the control group, whereas the expression of osteogenic differentiation marker (collagen type I) was decreased. Taken together, these data indicate that Dex/bFGF PLGA microspheres could be used as a scaffold to improve the rMSCs growth and differentiating into NP like cells, and reduce the inflammatory response for IVD tissue engineering.
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Affiliation(s)
- C Z Liang
- Department of Orthopedic Surgery, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, People's Republic of China
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Wu J, Chai Y, Zhou XM, Chen QX, Yan FL. Ivor Lewis subtotal esophagectomy with two-field lymphadenectomy for squamous cell carcinoma of the lower thoracic esophagus. World J Gastroenterol 2008; 14:5084-9. [PMID: 18763294 PMCID: PMC2742939 DOI: 10.3748/wjg.14.5084] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the clinical outcome of Ivor Lewis subtotal esophagectomy with two-field lymphadenectomy for patients with squamous cell carcinoma of the lower thoracic esophagus.
METHODS: From January 1998 to December 2001, 73 patients with lower thoracic esophageal carcinoma underwent Ivor-Lewis subtotal esophagectomy with two-field lymphadenectomy. Clinicopathological information, postoperative complications, mortality and long term survival of all these patients were analyzed retrospectively.
RESULTS: The operative morbidity and mortality was 15.1% and the mortality was 2.7%. Lymph node metastases were found in 52 patients (71.2%). Nodal metastases to the upper, middle, lower mediastini and upper abdomen were found in 13 (17.8%), 15 (20.5%), 30 (41.1%), and 25 (34.2%) patients, respectively. Postoperative staging was as follows: stageI in 5 patients, stage II in 34 patients, stage III in 32 patients, and stage IV in 2 patients, respectively. The overall 5-year survival rate was 23.3%. For N0 and N1 patients, the 5-year survival rate was 38.1% and 17.3%, respectively (χ2 = 22.65, P < 0.01). The 5-year survival rate for patients in stages IIa, IIb and III was 31.2%, 27.8% and 12.5%, respectively (χ2 = 29.18, P < 0.01).
CONCLUSION: Ivor Lewis subtotal esophagectomy with two-field (total mediastinum) lymphadenectomy is a safe and appropriate operation for squamous cell carcinoma of the lower thoracic esophagus.
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Chen PC, Zhou XM, Chen QX, Liu JS, Yan FL, Jiang YH. [Sleeve resection for lung cancer: a report of 82 cases]. Ai Zheng 2008; 27:510-515. [PMID: 18479601] [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: 05/26/2023]
Abstract
BACKGROUND & OBJECTIVE Bronchial sleeve resection and/or pulmovascular sleeve resection can maximize preservation of normal lung tissues after tumor resection, which provides a resection mode for lung cancer surgery. This study was to investigate the technique, operative results and survival of lung cancer patients after sleeve resection. METHODS Eighty-two central lung cancer patients underwent sleeve resection in Zhejiang Cancer Hospital from Jun. 2001 to Dec. 2006. Among them, 23 underwent concomitant pulmovascular sleeve resection, 2 underwent pulmovascular sleeve resection alone. All patients received systematic lymph node dissection. The results of lymph node dissection and the occurrence of postoperative complications were studied. The survival of patients was analyzed by Kaplan-Meier method. RESULTS An average of 20 lymph nodes (range, 9-57; median, 19 ) were dissected from 82 patients. Of the 82 patients, 49 (59.8%) were at stage N1, 21 (25.6%) at stage N2. Two (2.4%) patients died 2 and 3 days after operation. No bronchial anastomotic leakage occurred. The 1-, 2-, 3-, and 5-year survival rates were 78.4%, 52.5%, 39.1%, and 23.4%, respectively, with a median survival of 26 months. There were no significant differences in 1-, 3-, and 5-year survival rates between male and female patients, or between the patients aged of <60 and > or =60. The differences in 1-, 3-, and 5-year survival rates among N1(-) N2(-), N1 (+) N2(-), N2(+) patients, and among stageI, II, IIIA, IIIB patients were significant (P<0.01). CONCLUSIONS Perioperative mortality and the incidence of anastomosis-related complications for lung cancer patients after sleeve resection are low. Sleeve resection is an alternative to pneumonectomy for certain indications. Systematic lymph node dissection does not increase operative complications and mortality. The survival of lung cancer patients after sleeve resection is conelated to lymph node metastasis and clinical stage, but has no correlation to gender or age.
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Affiliation(s)
- Peng-Cheng Chen
- Department of Thoracic Surgery,Zhejiang Cancer Hospital, Hangzhou, Zhejiang, 310022, People's Republic of China. chenpengcheng73@yahoo .com.cn
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Wu LM, Zhang F, Xie HY, Xu X, Chen QX, Yin SY, Liu XC, Zhou L, Xu XB, Sun YL, Zheng SS. MMP2 promoter polymorphism (C-1306T) and risk of recurrence in patients with hepatocellular carcinoma after transplantation. Clin Genet 2008; 73:273-8. [PMID: 18177474 DOI: 10.1111/j.1399-0004.2007.00955.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Genetic variants in matrix metalloproteinase (MMP) gene may influence the biological function of these enzymes and change their role in carcinogenesis and progression. The effect of MMP2 C-1306T and MMP9 C-1562T polymorphisms on genetic susceptibility has been investigated in various kinds of cancer. However, the relationship between these polymorphisms and risk of recurrence of hepatocellular carcinoma (HCC) after liver transplantation (LT) has not been reported. The present study was designed to investigate the association of these two loci with the risk of HCC recurrence in 93 HCC patients treated with LT. Genotyping was performed using direct DNA sequencing. For MMP2 C-1306T variant, patients with CT heterozygous conferred a 58% reduction in recurrence risk (risk ratio: 0.419; 95% confidence interval: 0.177-0.994). The mean recurrence-free survival for CT genotype was significantly longer than that for homozygous CC patients (30.4 vs 19.3 months, p = 0.019). However, no association was found between MMP9 C-1562T polymorphisms and recurrence of HCC (p = 0.259). These findings suggest that MMP2 promoter polymorphisms may provide some predictive value for HCC recurrence after LT.
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Affiliation(s)
- L M Wu
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Wu J, Chai Y, Zhou XM, Chen QX, Yan FL. [Ivor Lewis esophagectomy with two-field lymph node dissection for squamous cell carcinoma of the lower thoracic esophagus]. Ai Zheng 2007; 26:307-11. [PMID: 17355797] [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: 05/14/2023]
Abstract
BACKGROUND & OBJECTIVE Esophagectomy with local regional lymph node dissection is the main treatment for lower thoracic esophageal carcinoma. This study was to assess the clinical outcomes of Ivor Lewis esophagectomy with two-field lymph node dissection for squamous cell carcinoma of the lower thoracic esophagus. METHODS Clinical data of 73 patients with squamous cell carcinoma of the lower thoracic esophagus, who underwent Ivor Lewis esophagectomy with two-field lymph node dissection from Jan. 1998 to Dec. 2001, were analyzed retrospectively. Kaplan-Meier method was used for survival analysis. RESULTS The morbidity of postoperative complications was 15.1% with a 2.7% mortality rate. The lymph node metastasis rate was 71.2%; the metastasis rate of the upper mediastinal nodes was 17.8%. Of the 73 patients, 5 were at stage I, 35 at stage II, 32 at stage III, and 2 at stage IV. The overall 5-year survival rate was 23.3%. The 5-year survival rate was 38.1% for N0 patients and 17.3% for N1 patients (P<0.01), and was 31.2% for stage IIa patients, 27.8% for stage IIb patients, and 12.5% for stage III patients (P<0.01). CONCLUSION Ivor Lewis esophagectomy with two-field lymph node dissection for squamous cell carcinoma of the lower thoracic esophagus is a safe operation, and may increase the chances of complete resection.
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Affiliation(s)
- Jie Wu
- Department of Thoracic Surgery, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, PR China
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35
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Park YD, Yang Y, Chen QX, Lin HN, Liu Q, Zhou HM. Kinetics of complexing activation by the magnesium ion on green crab (Scylla serrata) alkaline phosphatase. Biochem Cell Biol 2002; 79:765-72. [PMID: 11800017] [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: 02/23/2023] Open
Abstract
As with mammalian enzymes, green crab (Scylla serrata) alkaline phosphatase can be activated by Mg2+ through a time-dependent course. The activation is mainly a Vmax effect. Tsou's method was used to study the kinetic course of activation. The results show that the enzyme was activated by a complexing scheme that had not been previously identified: the enzyme first reversibly and quickly binds Mg2+ and then undergoes a slow reversible course to activation, with a relatively high activation energy (78 +/- 4 kJ/mol) and a slow conformational change. The activation reaction is a single molecule reaction, and the apparent activation rate constant is independent of Mg2+ concentration if the concentration is sufficiently high. The microscopic rate constants of activation and the association constant were determined from the measurements. The proposed scheme may also be applied to the Mg2+ activation mechanism for mammalian enzyme, to explain why the activation rate is time-dependent and not diffusion controlled. Substrate binding was also shown to affect the activation rate constant.
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Affiliation(s)
- Y D Park
- Department of Biological Science and Biotechnology, Tsinghua University, Beijing, People's Republic of China
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Abstract
Parthenogenetic activation is a major hurdle to be cleared for the examination of the human sperm chromosome after intracytoplasmic injection (ICSI) into golden hamster oocytes. Various factors that affect spontaneous activation of hamster oocytes were, therefore, investigated in this study. We collected cumulus-oocyte complexes (COC) from the oviducts of superovulated females and washed them thoroughly with Ca2+-containing or Ca2+-free TALP-HEPES medium (handling media). We cultured oocytes with intact cumulus or those without cumulus (removed by previous hyaluronidase treatment) in Ca2+-containing or -free m-TALP-3 for 6 or 12 h before examining for their activation. Among the oocytes recovered 17 h post-hCG, 92-94% were parthenogenetically activated by 6 h of in vitro culture. Activation rate in the oocytes collected at 13.5 h post-hCG (53%) was significantly (P < 0.05) lower than that in the oocytes collected 17 h post-hCG (92%), indicating that the spontaneous activation rate increased as the oocytes became older. Both cumulus-intact and cumulus-free oocytes had similar (P > 0.05) activation rates when cultured in vitro, suggesting that hyaluronidase treatment had no effect on the rate of oocyte activation. Omission of Ca2+ from the handling medium also had no effect on the activation of the oocytes. The rate of spontaneous activation of the oocytes cultured in calcium-free medium for 6 (9%) and 12 h (16%) was significantly (P < 0.01) lower than that (94%) of the control oocytes cultured in Ca2+-containing medium, implying a positive influence of Ca2+ on in vitro activation of hamster oocytes. When we cultured the oocytes first in calcium-free medium for 6 h, and then in calcium-containing medium for 6 h, 94% were activated, which is comparable to the rate for oocytes continuously cultured in Ca2+-containing medium. This indicates that the inhibition of hamster oocyte activation in Ca2+-free medium is reversible and can be used to control spontaneous activation of golden hamster oocytes.
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Affiliation(s)
- X S Sun
- Department of Biotechnology, Northeast Agricultural University, Harbin, PR China
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37
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Abstract
BACKGROUND Axillary osmidrosis can be treated with many methods, but local surgery is the treatment of choice. METHODS Forty-three patients (32 females and 11 males, average age 20.3 years) were treated by partial removal of the skin and subcutaneous tissue en bloc and follicular clipping of the adjacent area. All operations were performed with local anesthesia in an outpatient setting. RESULTS Follow-up ranged from 2 to 47 months (mean: 13.4 months). Forty-one patients (95%) had good results, two (5%) were fair, and none were poor. No recurrences were seen. The wound complication rate was 3.5% for axillae and 7% for patients. There were no scar contractures or limitations of arm abduction. CONCLUSION This combined surgical method can eliminate malodor and has a low wound complication and recurrence rate. Though the transient and conspicuous scar is the chief drawback of this method, it is a simple, safe, effective and inexpensive method for treating axillary osmidrosis.
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Affiliation(s)
- Y M Fan
- Department of Dermatology, Affiliated Hospital of Guangdong Medical College, Zhanjiang, Guangdong, China.
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38
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Niu YD, He X, Chen QX, Lin AX, Chen YF, Wei QX. [Exogenous pGH gene localization on chromosomes of the transgenic pigs]. Sheng Wu Gong Cheng Xue Bao 2001; 17:318-21. [PMID: 11517609] [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: 02/21/2023]
Abstract
The pUC19-OMT plasmids were cut by Ssp 1 and the products in 900 bp were recovered from low-melting agarose gel and used as probes which were labeled by Digoxigenin. After being denatured, the probes were dropped on the chromosome samples which were also denatured to anneal with them. The anti-digoxigenin antibodies labeled with colloidal gold were used to act with the chromosome samples. In order to localize the exogenous pGH genes(porcine growth hormone gene) on chromosomes detected with optical microscope and improve the sensitivity, digoxigen gold signals are amplified by silver precipitation. After calculating the number of silver grains on every chromosome under the optical microscope, we analyzed the data with statistical methods. The results show that the integrating sites of exogenous pGH genes are very different among the positives. However, it is clear that the exogenous genes in one are always of the tendency to integrate in one specific site on a certain chromosome. These data are of great significance for studying the site-specific integration and the expression efficiency of exogenous genes in the future research.
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Affiliation(s)
- Y D Niu
- Institute of Developmental Biology, Chinese Academy of Sciences, Beijing 100080, China
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Zhang RQ, Chen QX, Xiao R, Xie LP, Zeng XG, Zhou HM. Inhibition kinetics of green crab (Scylla serrata) alkaline phosphatase by zinc ions: a new type of complexing inhibition. Biochim Biophys Acta 2001; 1545:6-12. [PMID: 11342026 DOI: 10.1016/s0167-4838(00)00254-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Tsou method was used to study the kinetic course of inactivation of green crab alkaline phosphatase by zinc ions. The results show that the enzyme was inactivated by a complexing scheme which has not been previously identified. The enzyme first reversibly and quickly binds Zn(2+) and then undergoes a slow reversible course to inactivation and slow conformational change. The inactivation reaction is a single molecule reaction and the apparent inactivation rate constant is for a saturated reaction being independent of Zn(2+) concentration if the concentration is sufficiently high. The microscopic rate constants of inactivation and the association constant were determined from the measurements.
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Affiliation(s)
- R Q Zhang
- Department of Biological Science and Biotechnology, Center for Ocean Science and Engineering, Tsinghua University, Beijing, China
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40
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Zhou XW, Chen QX, Chen Z, He ZQ, Zhou HM. Effects of oxodiperoxovanadate (V) complexes on the activity of green crab (Scylla serrata) alkaline phosphatase. Biochemistry (Mosc) 2000; 65:1424-8. [PMID: 11173515 DOI: 10.1023/a:1002813125201] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Green crab (Scylla serrata) alkaline phosphatase (EC 3.1.3.1) is a metalloenzyme that catalyzes the nonspecific hydrolysis of phosphate monoesters. The effects of some pollutants in seawater on the activity of the enzyme will result in the loss of the biological function of the enzyme, which will affect the exuviating crab shell and threaten the survival of the animal. In the present paper, the effects of four oxodiperoxovanadate (V) complexes on the activity of green crab alkaline phosphatase have been studied. The results show that these vanadate derivatives can lead to reversible inactivation. The equilibrium constants for binding of inhibitors with the enzyme and/or the enzyme-substrate complexes have been determined. The results show that sodium (2,2;-bipyridine)oxodiperoxovanadate, pV(bipy), and potassium oxodiperoxo-(1,10-phenanthroline)vanadate, pV(phen), are competitive inhibitors, while potassium picolinato-oxodiperoxo-vanadate, pV(pic), and oxalato-oxodiperoxovanadate, pV(ox), are mixed-type inhibitors. These results suggest that pV(bipy) is a considerably more potent competitive inhibitor than pV(phen) and that the competitive inhibition effect of pV(pic) is stronger than that of pV(ox), but the non-competitive inhibition effect of pV(ox) is stronger than that of pV(pic).
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Affiliation(s)
- X W Zhou
- Department of Biology, Xiamen University, Xiamen 361005, People's Republic of China
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41
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Chen QX, Zheng WZ, Lin JY, Cai ZT, Zhou HM. Kinetics of inhibition of green crab (Scylla serrata) alkaline phosphatase by vanadate. Biochemistry (Mosc) 2000; 65:1105-10. [PMID: 11042505] [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: 02/18/2023]
Abstract
Green crab (Scylla serrata) alkaline phosphatase is a metalloenzyme that catalyzes the nonspecific hydrolysis of phosphate monoesters. The kinetics of inhibition of the enzyme by vanadate has been studied. The time course of the hydrolysis of p-nitrophenyl phosphate catalyzed by the enzyme in the presence of different Na3VO4 concentrations showed that, at each Na3VO4 concentration, the rate decreased with increasing time until a straight line was approached, the slopes of the straight lines being the same for all concentrations. The results suggest that the inhibition of the enzyme by Na3VO4 is a slow, reversible reaction with fractional residual activity. The microscopic rate constants were determined for the reaction of the inhibitor with the enzyme. As compared with Na2HPO4 (Ki = 0.95 mM), Na2HAsO4 (Ki = 1.10 mM), and Na2WO4 (Ki = 1.55 mM), the results suggest that Na3VO4 (Ki = 0.135 mM) is a considerably more potent inhibitor than other inhibitors.
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Affiliation(s)
- Q X Chen
- Department of Biology, Xiamen University, Xiamen, 361005, People's Republic of China
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Abstract
Green crab (Scylla serrata) alkaline phosphatase (EC 3.1.3.1) is a metalloenzyme, which catalyzes the nonspecific hydrolysis of phosphate monoesters. The present paper deals with the study of the effect of some kinds of metal ions on the enzyme. The positive monovalent alkali metal ions (Li(+), Na(+) and K(+)) have no effect on the enzyme; positive bivalent alkaline-earth metal ions (Mg(2+), Ca(2+) and Ba(2+)) and transition metal ions (Mn(2+), Co(2+), Ni(2+) and Cd(2+)) activate the enzyme; heavy metal ions (Hg(2+), Ag(+), Bi(2+), Cu(2+) and Zn(2+)) inhibit the enzyme. The activation of magnesium ion on the enzyme appears to be a partial noncompetitive type. The kinetic model has been set up and a new plot to determine the activation constant of Mg(2+) was put forward. From the plot, we can easily determine the activation constant (K(a)) value and the activation ratio of Mg(2+) on the enzyme. The inhibition effects of Cu(2+) and Hg(2+) on the enzyme are of noncompetitive type. The inhibition constants have been determined. The inhibition effect of Hg(2+) is stronger than that of Cu(2+).
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Affiliation(s)
- Q X Chen
- Department of Biology, Xiamen University, 361005, Xiamen, People's Republic of China
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Zhang RQ, Chen QX, Zheng WZ, Lin JY, Zhuang ZL, Zhou HM. Inhibition kinetics of green crab (Scylla serrata) alkaline phosphatase activity by dithiothreitol or 2-mercaptoethanol. Int J Biochem Cell Biol 2000; 32:865-72. [PMID: 10940643 DOI: 10.1016/s1357-2725(00)00030-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [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: 11/24/2022]
Abstract
Green crab (Scylla serrata) alkaline phosphatase (EC 3.1.3.1) is a metalloenzyme which catalyzes the nonspecific hydrolysis of phosphate monoesters. Some pollutants in seawater affect the enzyme activity causing loss of the biological function of the enzyme, which affects the exuviating crab-shell and threatens the survival of the animal. The present paper studies the effects of thiohydroxyal compounds on the activity of green crab alkaline phosphatase. The results show that thiohydroxyal compounds can lead to reversible inhibition. The equilibrium constants have been determined for dithiothreitol (DTT) and mercaptoethanol (ME) binding with the enzyme and/or the enzyme-substrate complexes. The results show that both DTT and ME are non-competitive inhibitors. The kinetics of enzyme inactivation by ME at low concentrations has been studied using the kinetic method of the substrate reaction. The results suggest that at pH 10.0, the action of ME on green crab ALP is first quick equilibrium binding and then slow inactivation. The microscopic rate constants were determined for inactivation and reactivation. The rate constant of the forward inactivation (k(+0)) is much larger than that of the reverse reactivation (k(-0)). Therefore, when the ME concentration is sufficiently large, the enzyme is completely inactivated.
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Affiliation(s)
- R Q Zhang
- Department of Biological Science and Biotechnology, School of Life Science and Engineering, Tsinghua University, Beijing, People's Republic of China
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Abstract
The kinetics of inhibition of beta-glucosidase from Ampullarium crossean by bromoacetic acid (BrAc) has been studied. The results show that the enzyme can be irreversibly and completely inactivated at high BrAc concentration, while at low BrAc concentration, inhibition of the enzyme is a slow, reversible reaction. The microscopic rate constants for the reactions of BrAc with the enzyme were determined. The presence of the substrate offers obvious protection of the enzyme against inhibition by BrAc. The above results suggest that the histidine residue is essential for activity and is situated at or near the active site of the enzyme.
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Affiliation(s)
- Q X Chen
- Department of Biology, Xiamen University, Xiamen 361005, People's Republic of China.
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Chen QX, Zhang RQ, Xue XZ, Yang PZ, hen SL, Zhou HM. Effect of methanol on the activity and conformation of acid phosphatase from the prawn Penaeus penicillatus. Biochemistry (Mosc) 2000; 65:452-6. [PMID: 10810183] [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: 02/16/2023]
Abstract
Prawn (Penaeus penicillatus) acid phosphatase (EC 3.1.3.2) catalyzes the nonspecific hydrolysis of phosphate monoesters. The effects of some pollutants in sea water on the enzyme activity results in the loss of the biological function of the enzyme, which leads to disruption of phosphate metabolism in cells. This paper analyzes the effects of methanol on the activity and conformation of prawn acid phosphatase. The results show that low concentrations of methanol can lead to reversible inactivation. Inhibition of the enzyme by methanol is classified as non-competitive inhibition, and the inhibition constant (Ki) is 8.5%. Conformational changes of the enzyme molecule in methanol solutions of different concentrations were measured using fluorescence emission, differential UV-absorption, and circular dichroism spectra. Increased methanol concentrations caused the fluorescence emission intensity of the enzyme to increase. The ultraviolet difference spectra of the enzyme denatured with methanol had two negative peaks, at 222 and 270 nm, and a positive peak at 236 nm. The changes in the fluorescence and ultraviolet difference spectra reflected the changes of the microenvironments of tryptophan and tyrosine residues of the enzyme. The CD spectrum changes of the enzyme show that the secondary structure of the enzyme also changed some. These results suggest that methanol is a non-competitive inhibitor and the conformational integrity of the enzyme is essential for its activity.
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Affiliation(s)
- Q X Chen
- Department of Biology, Xiamen University, Xiamen, 361005, China
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Fan JH, Wei QX, Chen QX, Li K. [A study of genetic character and foreign OMT/PGH gene integration in transgenic swine]. Yi Chuan Xue Bao 2000; 26:497-500. [PMID: 10665226] [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: 02/15/2023]
Abstract
By using isotopic and non-isotopic in situ hybridization on chromosomes, the locus on chromosomes of foreign OMT/PGH gene was analyzed in eight transgenic pigs (G0, G1,G2 and G3). The research result is as follows: (1) The foreign genes could integrated on chromosomes of pig and the foreign integrated randomly; (2) the foreign genes integrated on chromosomes were transmissible through generations; (3) the locus on chromosomes of foreign gene was relatively stable in alternation of generations in transgenic swine.
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Affiliation(s)
- J H Fan
- Institute of Animal and Veterinary, HAAS, Wuhan
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Chen QX, Zhang RQ, Yang PZ, Li Y, Chen SL, Li S, Yang Y, Zhou HM. Effect of ethanol on the activity and conformation of Penaeus penicillatus acid phosphatase. Int J Biol Macromol 1999; 26:103-7. [PMID: 10517516 DOI: 10.1016/s0141-8130(99)00069-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [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: 11/25/2022]
Abstract
The effect of ethanol on the activity of Penaeus penicillatus acid phosphatase has been studied. The results show that ethanol significantly inhibits enzyme activity as a non-competitive inhibitor, with Ki 8.75%. The conformational changes of the enzyme molecule induced by ethanol were followed using fluorescence emission, ultraviolet difference and circular dichroism (CD) spectra. Increasing the ethanol concentration caused the fluorescence emission intensity of the enzyme to increase. The ultraviolet difference spectra of the enzyme denatured with ethanol had two negative peaks at 220 and 278 nm, and a positive peak at 240 nm. Increasing the ethanol concentration produced a small shoulder peak at 287 nm in addition to the increases in the negative magnitudes of the 220 and 278 nm peaks. The changes of the fluorescence and ultraviolet difference spectra reflected the changes of the microenvironments of the tryptophan and tyrosine residues of the enzyme. The CD spectrum changes of the enzyme show that the secondary structure of the enzyme also changed. The results suggest that ethanol is a non-competitive inhibitor and the conformational integrity of the enzyme is essential for its activity.
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Affiliation(s)
- Q X Chen
- Department of Biology, Xiamen University, People's Republic of China
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Zhou XW, Zhuang ZL, Chen QX. Kinetics of inhibition of green crab (Scylla serrata) alkaline phosphatase by sodium (2,2'-bipyridine) oxodiperoxovanadate. J Protein Chem 1999; 18:735-40. [PMID: 10691182 DOI: 10.1023/a:1020621332377] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Green crab (Scylla serrata) alkaline phosphatase (EC 3.1.3.1) is a metalloenzyme, which catalyzes the nonspecific hydrolysis of phosphate monoesters. The kinetics of inhibition of the enzyme by sodium (2, 2'-bipyridine) oxodiperoxovanadate, pV(bipy), has been studied. The time course of the hydrolysis of p-nitrophenyl-phosphate catalyzed by the enzyme in the presence of different pV(bipy) concentrations showed that at each pV(bipy) concentration, the rate decreased with increasing time until a straight line was approached, the straight line slopes are the same for all concentrations. The results suggest that the inhibition of the enzyme by pV(bipy) is a slow, reversible reaction with fractional remaining activity. The microscopic rate constants are determined for the reaction of inhibitor with the enzyme.
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Affiliation(s)
- X W Zhou
- Department of Biology, Xiamen University, PR China
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Abstract
Green crab (Scylla serrata) alkaline phosphatase (EC 3.1.3.1) is a metalloenzyme which catalyzes the nonspecific hydrolysis of phosphate monoesters. The effects of several inhibitors on its activity have been studied. The results show that Na2HPO4, Na2HAsO4 and Na2WO4 are competitive inhibitors, L-phenylalanine is an uncompetitive inhibitor, while L-cysteine is a mixed-type inhibitor. The equilibrium constants were determined for inhibitor binding. The order of potency was Na2HPO4 (KI = 0.95 mM) > Na2AsO4 (1.10 mM) > Na2WO4 (1.55 mM).
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Affiliation(s)
- Q X Chen
- Department of Biological Science and Biotechnology, Tsinghua University, Beijing, P.R. China
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Zhu CM, Chen QX, Lin HN, Yang Y, Park YD, Zhang RQ, Zhou HM. Kinetics of inhibition of green crab (Scylla serrata) alkaline phosphatase by L-cysteine. J Protein Chem 1999; 18:603-7. [PMID: 10524778 DOI: 10.1023/a:1020611602818] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The inhibition of alkaline phosphatase from green crab (Scylla serrata) by L-cysteine has been studied. The results show that L-cysteine gives a mixed-type inhibition. The progress-of-substrate-reaction method previously described by Tsou [(1988), Adv. Enzymol. Related Areas Mol. Biol. 61, 391-436] was used to study the inactivation kinetics of the enzyme by L-cysteine. The microscopic rate constants were determined for reaction of the inhibitor with the free enzyme and the enzyme-substrate complex (ES) The results show that inactivation of the enzyme by L-cysteine is a slow, reversible reaction. Comparison of the inactivation rate constants of free enzyme and ES suggests that the presence of the substrate offers marked protection of this enzyme against inactivation by L-cysteine.
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Affiliation(s)
- C M Zhu
- Department of Biological Science and Biotechnology, Tsinghua University, Beijing, China
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