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Zhao Q, Dong A, Cui C, Ou Q, Ruan G, Zhou J, Tian L, Liu L, Ma H, Li H. MRI-Based Metastatic Nodal Number and Associated Nomogram Improve Stratification of Nasopharyngeal Carcinoma Patients: Potential Indications for Individual Induction Chemotherapy. J Magn Reson Imaging 2023; 57:1790-1802. [PMID: 36169976 DOI: 10.1002/jmri.28435] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 09/05/2022] [Accepted: 09/08/2022] [Indexed: 12/08/2022] Open
Abstract
BACKGROUND Metastatic lymph nodal number (LNN) is associated with the survival of nasopharyngeal carcinoma (NPC); however, counting multiple nodes is cumbersome. PURPOSE To explore LNN threshold and evaluate its use in risk stratification and induction chemotherapy (IC) indication. STUDY TYPE Retrospective. POPULATION A total of 792 radiotherapy-treated NPC patients (N classification: N0 182, N1 438, N2 113, N3 59; training group: 396, validation group: 396; receiving IC: 390). FIELD STRENGTH/SEQUENCE T1-, T2- and postcontrast T1-weighted fast spin echo MRI at 1.5 or 3.0 T. ASSESSMENT Nomogram with (model B) or without (model A) LNN was constructed to evaluate the 5-year overall (OS), distant metastasis-free (DMFS), and progression-free survival (PFS) for the group as a whole and N1 stage subgroup. High- and low-risk groups were divided (above vs below LNN- or model B-threshold); their response to IC was evaluated among advanced patients in stage III/IV. STATISTICAL TESTS Maximally selected rank, univariate and multivariable Cox analysis identified the optimal LNN threshold and other variables. Harrell's concordance index (C-index) and 2-fold cross-validation evaluated discriminative ability of models. Matched-pair analysis compared survival outcomes of adding IC or not. A P value < 0.05 was considered statistically significant. RESULTS Median follow-up duration was 62.1 months. LNN ≥ 4 was independently associated with decreased 5-year DMFS, OS, and PFS in entire patients or N1 subgroup. Compared to model A, model B (adding LNN, LNN ≥ 4 vs <4) presented superior C-indexes in the training (0.755 vs 0.727) and validation groups (0.676 vs 0.642) for discriminating DMFS. High-risk patients benefited from IC with improved post-IC response and OS, but low-risk patients did not (P = 0.785 and 0.690, respectively). CONCLUSIONS LNN ≥ 4 is an independent risk stratification factor of worse survival in entire or N1 staging NPC patients. LNN ≥ 4 or the associated nomogram has potential to identify high-risk patients requiring IC. EVIDENCE LEVEL 4 TECHNICAL EFFICACY: 4.
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Affiliation(s)
- Qin Zhao
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People's Republic of China
| | - Annan Dong
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People's Republic of China
| | - Chunyan Cui
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People's Republic of China
| | - Qiaowen Ou
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong, People's Republic of China
| | - Guangying Ruan
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People's Republic of China
| | - Jian Zhou
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People's Republic of China
| | - Li Tian
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People's Republic of China
| | - Lizhi Liu
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People's Republic of China
- Department of Radiology, The Third People's Hospital of Shenzhen, Shenzhen, Guangdong, People's Republic of China
| | - Huali Ma
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People's Republic of China
| | - Haojiang Li
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People's Republic of China
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Lin W, Zhao Y, Liu C, Yan Y, Ou Q. Quercetin supplementation and muscular atrophy in animal models: A systematic review and meta-analysis. International Journal of Food Properties 2022. [DOI: 10.1080/10942912.2022.2127764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Weiqun Lin
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Yongyi Zhao
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Cuibing Liu
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Yinghua Yan
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
| | - Qiaowen Ou
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, People’s Republic of China
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Ruichong L, Wang Z, Gu Y, Ou Q, Yu C, Yu Y, Su W, Yao H. 9P Development and validation of a pathogenomics model to improve the risk stratification of breast cancer: A deep learning study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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Shao Y, Chen X, Wu X, Ou Q, Yin J, Wu X. 82P Exploring the prognostic role of DNA damage sensing deficiency for immune checkpoint blockade in diverse cancer types. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Ding Q, Shao Y, Wu X, Hu Q, Meng Q, Yin J, Ou Q, Wu X. 89P Novel resistance mechanisms to second-generation EGFR tyrosine kinase inhibitor afatinib in non-small cell lung cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Jin B, Ma Y, Wu Q, Bai N, Ou Q, Wu X, Shao Y, Xu S. EP08.02-073 Clinical and Genomic Analysis of Primary and Secondary MET Fusions with Intact Kinase Domain in Lung Cancer. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lin W, Cao D, Dong A, Liang S, Zhao Y, Liu C, Yan Y, Luo X, Liu L, Zeng X, Ou Q. Systematic construction and external validation of an immune-related prognostic model for nasopharyngeal carcinoma. Head Neck 2022; 44:1086-1098. [PMID: 35170132 DOI: 10.1002/hed.26996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 01/18/2022] [Accepted: 02/01/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND We attempted to identify the most reliable immune-related index for predicting nasopharyngeal carcinoma (NPC) prognosis and to reveal its precise and integrated relationship with NPC progression. METHOD One thousand seven hundred and six patients with newly diagnosed NPC (1320 from the primary cohort and 386 from the validated cohort) from January 2010 to March 2014 were enrolled. Clinical features and 12 immune-related variables were analyzed. RESULTS A high absolute lymphocyte count (ALC; >3.2 × 109 /L) correlated with a poor prognosis of patients with NPC. Significant OS differences were discovered between patients with high ALC and no ALC elevation (p < 0.05, in primary cohort), showing similar prognostic risk to patients with advanced NPC (p > 0.05, in validated cohort). ALC improved the predictive performance of the basic tumor-node-metastasis prognostic model (p = 0.025), which was reliably validated in the external independent cohort. CONCLUSION High ALC is a surrogate marker for improved prognostic risk stratification in NPC.
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Affiliation(s)
- Weiqun Lin
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Di Cao
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, China
| | - Annan Dong
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, China
| | - Shaobo Liang
- Department of Radiation Oncology, First People's Hospital of Foshan, Foshan, China
- Department of Radiation Oncology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangdong, People's Republic of China
| | - Yongyi Zhao
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Cuibing Liu
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Yinghua Yan
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
| | - Xiaoliu Luo
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, China
| | - Lizhi Liu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, China
| | - Xinchen Zeng
- Department of Liver surgery, The Third People's Hospital of Shenzhen, Shenzhen, Guangdong, China
| | - Qiaowen Ou
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
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Yu Y, Ou Q, Yu C, Wang L, Zhang R, Zhao R, Qu B, Wang Z, Lin R, Yao H. 7P Development and validation of a deep learning RNA modification model predict disease-free survival in patients with breast cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.03.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Luo C, Li S, Zhao Q, Ou Q, Huang W, Ruan G, Liang S, Liu L, Zhang Y, Li H. RuleFit-Based Nomogram Using Inflammatory Indicators for Predicting Survival in Nasopharyngeal Carcinoma, a Bi-Center Study. J Inflamm Res 2022; 15:4803-4815. [PMID: 36042867 PMCID: PMC9420437 DOI: 10.2147/jir.s366922] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 08/11/2022] [Indexed: 12/24/2022] Open
Abstract
PURPOSE Traditional prognostic studies utilized different cut-off values, without evaluating potential information contained in inflammation-related hematological indicators. Using the interpretable machine-learning algorithm RuleFit, this study aimed to explore valuable inflammatory rules reflecting prognosis in nasopharyngeal carcinoma (NPC) patients. PATIENTS AND METHODS In total, 1706 biopsy-proven NPC patients treated in two independent hospitals (1320 and 386) between January 2010 and March 2014 were included. RuleFit was used to develop risk-predictive rules using hematological indicators with no distributive difference between the two centers. Time-event-dependent hematological rules were further selected by stepwise multivariate Cox analysis. Combining high-efficiency hematological rules and clinical predictors, a final model was established. Models based on other algorithms (AutoML, Lasso) and clinical predictors were built for comparison, as well as a reported nomogram. Area under the receiver operating characteristic curve (AUROC) and concordance index (C-index) were used to verify the predictive precision of different models. A site-based app was established for convenience. RESULTS RuleFit identified 22 combined baseline hematological rules, achieving AUROCs of 0.69 and 0.64 in the training and validation cohorts, respectively. By contrast, the AUROCs of the optimal contrast model based on AutoML were 1.00 and 0.58. For overall survival, the final model had a much higher C-index than the base model using TN staging in two cohorts (0.769 vs 0.717, P<0.001; 0.752 vs 0.688, P<0.001), and showing great generalizability in training and validation cohorts. The two models based on RuleFit rules performed best, compared with other models. As for other endpoints, the final model showed a similar trend. Kaplan-Meier curve exhibited 22.9% (390/1706) patients were "misclassified" by AJCC staging, but the final model could assess risk classification accurately. CONCLUSION The proposed final models based on inflammation-related rules based on RuleFit showed significantly elevated predictive performance.
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Affiliation(s)
- Chao Luo
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People’s Republic of China
| | - Shuqi Li
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People’s Republic of China
| | - Qin Zhao
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People’s Republic of China
| | - Qiaowen Ou
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, Guangdong, People’s Republic of China
| | - Wenjie Huang
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People’s Republic of China
| | - Guangying Ruan
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People’s Republic of China
| | - Shaobo Liang
- Department of Radiotherapy, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong, People’s Republic of China
| | - Lizhi Liu
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People’s Republic of China
- Department of Radiology, The Third People’s Hospital of Shenzhen, Shenzhen, Guangdong, People’s Republic of China
| | - Yu Zhang
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, People’s Republic of China
- Yu Zhang, Department of Pathology, Sun Yat-sen University Cancer Center, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, People’s Republic of China, Email
| | - Haojiang Li
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, People’s Republic of China
- Correspondence: Haojiang Li, Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, People’s Republic of China, Tel +86-20-87342135, Fax +86-20-87342125, Email
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Wen H, Feng Z, Ma Y, Liu R, Ou Q, Bao H, Wu X, Wu X. 67P Homologous recombination deficiency in diverse cancer types and its correlation with platinum chemotherapy efficiency in ovarian cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Wang X, Su W, Gao Y, Feng Y, Wang X, Chen X, Ma Y, Ou Q, Liang D, Huang H. 374P A real-world application of aqueous humor and vitreous fluid for the diagnosis of vitreoretinal lymphoma and treatment monitoring. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Zhang Y, Zeng Z, Zhang Q, Ou Q, Chen Z. [Effect of extracorporeal membrane oxygenation on pharmacokinetics of antimicrobial drugs: recent progress and recommendations]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:793-800. [PMID: 34134970 DOI: 10.12122/j.issn.1673-4254.2021.05.23] [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: 11/24/2022]
Abstract
Extracorporeal membrane oxygenation (ECMO) is an effective means to provide life support for patients with severe respiratory or heart failure. Existing studies have shown that ECMO may affect the metabolic process of some drugs by drug adsorption, increasing the apparent distribution volume and changing the clearance rate of the drugs. This review summarizes the recent progress in the studies of the effect of ECMO on the pharmacokinetics of antibacterial and antifungal drugs. For the antibacterial drugs, it is recommended that the dose of teicoplanin, imipenem, and linezolid should be increased during ECMO support, while the dose of azithromycin, ciprofloxacin, and tigecycline should not be modified for the time being. Currently studies on pharmacokinetic changes of antifungal drugs during ECMO support remain limited. Voriconazole can be absorbed substantially by ECMO due to its high lipophilicity, and higher doses are therefore recommended. The dose of micafungin also needs to be increased in children undergoing ECMO. However, current evidence concerning the dose of caspofungin and fluconazole are limited, and it is not clear whether the routine dose should be adjusted during ECMO support.
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Affiliation(s)
- Y Zhang
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Zeng
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Q Zhang
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Q Ou
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Z Chen
- Department of Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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Wang Y, Li Y, Li C, Jiang Y, Han X, Liu S, Xu X, Tang W, Ou Q, Bao H, Wu X, Shao Y, Xing M, Zhang Y. MA08.06 Stratifying PD-L1 Expression Level Based on Multimodal Genomic Features for the Prediction of Immunotherapy Benefit in NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Shi L, Xu C, Ma Y, Ou Q, Wu X, Lu S, Shao Y, Guo R, Kong J. Corrigendum to 'Clinical significance of ERBB2 exon 16 skipping: analysis of a real-world retrospective observational cohort study': [ESMO Open Volume 5, Issue 6, 2020, e000985]. ESMO Open 2021; 6:100052. [PMID: 33497993 DOI: 10.1016/j.esmoop.2021.100052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- L Shi
- Department of Thoracic Oncology, Second Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - C Xu
- Department of Oncology, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Y Ma
- Translational Medicine Research Institute, Geneseeq Technology Inc, Toronto, Ontario, Canada
| | - Q Ou
- Translational Medicine Research Institute, Geneseeq Technology Inc, Toronto, Ontario, Canada
| | - X Wu
- Translational Medicine Research Institute, Geneseeq Technology Inc, Toronto, Ontario, Canada
| | - S Lu
- Pulmonary and Critical Care Medicine Ward, Guangxi Medical University First Affiliated Hospital, Nanning, China
| | - Y Shao
- Research and Development, Nanjing Geneseeq Technology Inc, Nanjing, China; School of Public Health, Nanjing Medical University, Nanjing, China
| | - R Guo
- Department of Medical Oncology, First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
| | - J Kong
- Pulmonary and Critical Care Medicine Ward, Guangxi Medical University First Affiliated Hospital, Nanning, China.
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Zhang W, Li A, Chen Y, Ou Q, Ren W, He Z, Yu Y, Yao H. 19P Tumour microenvironment and radiomics landscape associated with survival and prediction of immunotherapy in patients with cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Ren W, Yu Y, Tan Y, Chen Y, Liu J, He Z, Li A, Ma J, Lu N, Li C, Li X, Ou Q, Chen K, Hu Q, Ouyang J, Su F, Xie C, Song E, Yao H. 4MO Machine learning intratumoral and peritumoral magnetic resonance imaging radiomics for predicting disease-free survival in patients with early-stage breast cancer (RBC-01 Study). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Li H, Chen M, Liang S, Wei X, Wang R, Cui C, Ruan G, Ou Q, Liu L. Excessive vitamin B6 during treatment is related to poor prognosis of patients with nasopharyngeal carcinoma: A U-shaped distribution suggests low dose supplement. Clin Nutr 2020; 40:2293-2300. [PMID: 33873269 DOI: 10.1016/j.clnu.2020.10.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 05/17/2020] [Revised: 08/27/2020] [Accepted: 10/13/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND & AIM Several studies explored the association of vitamin B6 intake with the risk of cancers. However, it is unclear whether different doses of vitamin B6 have distinct effects on the prognosis of nasopharyngeal carcinoma (NPC) patients. This study investigated the relationship between different doses of B6 intake and the prognosis of NPC patients. METHODS This retrospective cohort analysis included 792 newly diagnosed NPC patients with a median follow-up of 62.05 months. Restricted cubic spline and maximally selected rank statistics were performed to determine the cut-off value of vitamin B6 during treatment (VB6DT). Kaplan-Meier method and log-rank tests were performed to analyze survival outcomes. A multivariable Cox proportional hazard model was performed to determine the independent prognostic factors. RESULTS NPC patients were divided into three groups according to the cut-off value of VB6DT: non-users (0 mg/d), VB6DT > 8.6 mg/d, and VB6DT ≤ 8.6 mg/d. Patients with VB6DT > 8.6 mg/d had significantly lower 5-year overall survival (OS) (83.5% vs. 90.8%, p = 0.006), distant metastasis-free survival (DMFS) (83.5% vs. 91.0%, p = 0.004), and progression-free survival (PFS) (73.7% vs. 81.7%, p = 0.011) and slightly but not significantly lower 5-year local recurrence-free survival (LRFS) (87.7% vs. 90.7%, p = 0.214) than the non-users. Patients with VB6DT ≤ 8.6 mg/d had slightly but not significantly better 5-year OS (93.3% vs. 90.8%, p = 0.283) than the non-users, while all other primary endpoints were similar (p > 0.50). Multivariable analyses confirmed that VB6DT > 8.6 mg/d was an independent negative prognostic factor of OS (p = 0.010), DMFS (p = 0.017), and PFS (p = 0.030) but not of LRFS (p = 0.428). CONCLUSIONS Excessive VB6DT higher than the cut-off value is an independent negative prognostic factor for NPC patients. Additionally, low dose intake improved OS only slightly but not significantly.
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Affiliation(s)
- Haojiang Li
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, People's Republic of China
| | - Mingyang Chen
- Sun Yat-sen University, 74 Zhongshan Second Road, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Shaobo Liang
- Department of Radiation Oncology, First People's Hospital of Foshan, Foshan, People's Republic of China; Department of Radiation Oncology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangdong, 510630, People's Republic of China
| | - Xiaoyu Wei
- Sun Yat-sen University, 74 Zhongshan Second Road, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Ruixin Wang
- Sun Yat-sen University, 74 Zhongshan Second Road, Guangzhou, Guangdong, 510080, People's Republic of China
| | - Chunyan Cui
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, People's Republic of China
| | - Guangying Ruan
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, People's Republic of China
| | - Qiaowen Ou
- Department of Clinical Nutrition, The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, 510080, People's Republic of China.
| | - Lizhi Liu
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, 651 Dongfeng Road East, Guangzhou, Guangdong, 510060, People's Republic of China.
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Ou Q, Cui C, Zeng X, Dong A, Wei X, Chen M, Liu L, Zhao Y, Li H, Lin W. Grading and prognosis of weight loss before and after treatment with optimal cutoff values in nasopharyngeal carcinoma. Nutrition 2020; 78:110943. [PMID: 32861179 DOI: 10.1016/j.nut.2020.110943] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/16/2020] [Accepted: 06/21/2020] [Indexed: 01/26/2023]
Abstract
OBJECTIVES Weight loss has been validated as a prognostic predictor of nasopharyngeal carcinoma (NPC); however, no global unitary indicator and criteria exist for the definition of weight loss as a prognostic factor. The aim of this study was to determine the most effective indicator for weight loss, evaluate its effect on the prognosis of NPC, and further propose a cutoff value to identify patients in need of nutritional care. METHODS This retrospective cohort analysis with a median follow-up of 62.3 mo included 681 newly diagnosed patients with NPC. Principal component analysis was performed to select the best continuous variable including weight loss (kg; value of weight loss [VWL]), percent weight loss (PWL), and body mass index loss (BMIL). Multivariable Cox regression analysis and multiple correspondence analysis were performed to select the best cutoff values by different cutoff methods including the median, receiver operating characteristic curve, and threshold searching. RESULTS PWL was the highest contributor to the prognosis of NPC compared with VWL and BMIL. Cutoff values of PWL (6.3 and 12.3%) were confirmed to be more important and were proposed to differentiate patients into low-, medium-, and high-risk NPC groups, with their 5-y progression-free survival (84.5 versus 77.9%, P = 0.046; 77.9 versus 67.3%, P = 0.046). PWL was an independent adverse prognostic factor (P = 0.002) for NPC. CONCLUSIONS PWL is a promising predictor for NPC, and cutoff values could be validated for nutritional risk grading in patients with NPC. These stratified criteria may help accelerate the extensive application of grading nutritional management in NPC therapy.
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Affiliation(s)
- Qiaowen Ou
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, P.R. China; The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Chunyan Cui
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, P.R. China
| | - Xinchen Zeng
- Department of Liver Transplantation, The Third People's Hospital of Shenzhen, Shenzhen, Guangdong, P.R. China
| | - Annan Dong
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, P.R. China
| | - Xiaoyu Wei
- Sun Yat-sen University. Guangzhou, Guangdong, P.R. China
| | - Mingyang Chen
- School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, P.R. China
| | - Lizhi Liu
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, P.R. China
| | - Yongyi Zhao
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, P.R. China; The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, P.R. China
| | - Haojiang Li
- Department of Radiology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, Guangdong, P.R. China
| | - Weiqun Lin
- Department of Clinical Nutrition, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, P.R. China; The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, P.R. China.
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Yu Y, Li A, Chen Y, Zhang W, Zhong H, Gu Y, Ou Q, Xia J, Lin D, Fu T, Li L, Liu R, Yao H. 1036P Patients’ sex and PD-L1 expression jointly associated with overall survival benefits of immune checkpoint inhibitors in cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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20
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Yu Y, Tan Y, Hu Q, Ouyang J, Chen Y, Yang G, Li A, Lu N, He Z, Yang Y, Chen K, Ou Q, Zhang Y, Wu Z, Su F, Xie C, Song E, Yao H. 169MO Development and validation of a magnetic resonance imaging radiomics-based signature to predict axillary lymph node metastasis and disease-free survival in patients with breast cancer: A multicenter cohort study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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21
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Hong PC, Ou Q, Pan MX, Chen BX, Chen ZX, Hong ZG, Cheng YL. [Investigation on the awareness of snoring hazard and prevalence of obstructive sleep apnea among civil servants]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:553-556. [PMID: 32629553 DOI: 10.3760/cma.j.cn112147-20191013-00682] [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: 02/05/2023]
Abstract
Objective: To investigate the awareness of snoring hazard and prevalence of obstructive sleep apnea (OSA) among civil servants. Methods: A cross-sectional survey was conducted to investigate the awareness of snoring hazards among in-service civil servants who had annual medical examination in a Guangdong provincial institution from September to November 2017. The high-risk group for OSA was screened and diagnosed by sleep monitoring. Results: 1 036 of 1 241 civil servants were enrolled in the study for integral data. 60.1% (623/1 036) of the subjects realized that snoring was harmful to health. The most common source to develop OSA awareness was network (59.6%, 371/623), followed by television (48.0%), relatives and friends (46.6%), newspaper (44.5%) and radio (18.9%). The awareness rate of snoring consequences was as follows: decreased sleep quality (71.9%, 448/623), sudden death (52.2%), daytime sleepiness (44.3%), cardiovascular and cerebrovascular diseases (42.9%), hypertension (24.4%) and sexual dysfunction (16.7%). 22.0% (228 / 1 036) of the cases were classified into high-risk OSA. The prevalence of OSA among high-risk group was 46.05%(105/228)and only 0.9% (2/228) of them had been diagnosed with OSA. Conclusion: Civil servants had awareness of snoring hazard to a certain extent. Among civil servants classified into high-risk OSA, the OSA perveance was high but the rate of diagnosis and treatment was very low.
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Affiliation(s)
- P C Hong
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences/Guangdong Provincial Geriatrics Institute, Guangzhou 510080, China
| | - Q Ou
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences/Guangdong Provincial Geriatrics Institute, Guangzhou 510080, China
| | - M X Pan
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences/Guangdong Provincial Geriatrics Institute, Guangzhou 510080, China
| | - B X Chen
- Sleep Medicine Center, Shantou University Medical College, Shantou 515000, China
| | - Z X Chen
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences/Guangdong Provincial Geriatrics Institute, Guangzhou 510080, China
| | - Z G Hong
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences/Guangdong Provincial Geriatrics Institute, Guangzhou 510080, China
| | - Y L Cheng
- Sleep Center, Department of Pulmonary and Critical Care Medicine, Guangdong Provincial People's Hospital/Guangdong Academy of Medical Sciences/Guangdong Provincial Geriatrics Institute, Guangzhou 510080, China
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Ou Q, Lin D, Yu Y, Li A, Zhang W, Chen Y, Liu R, Tan Y, Xu M, Li L, Yao H. Association of MUC16 mutation with survival of immune checkpoint inhibitor in patients with cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz452.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Yu Y, Zhang W, Li A, Chen Y, Wang Y, Zhang Y, He Z, Ou Q, Liu R, Song E, Yao H. Association of long non-coding RNA biomarkers with clinically immune subtype and prediction of immunotherapy in patients with cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz452.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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24
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Li A, Lin D, Yu Y, Gu Y, Ou Q, Zhang W, Chen Y, Liu R, Tan Y, Xu H, Li L, Yao H. Association of PTPRT mutation with survival of immune checkpoint inhibitor in patients with cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz452.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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25
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Yu Y, Li A, Chen Y, Li Q, Ou Q, Lin D, Zhang W, Li Z, Hu H, Yao H. Association of survival and blood-based genomic signature with atezolizumab for patients with second-line and third-line EGFR wild-type non-small cell lung cancer: Pooled analysis of individual patient data from the POPLAR and OAK trials. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz438] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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26
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Zhao W, Ou Q, Wu X, Wang X, Shao Y. Identification of novel and known FGFR gene fusions in Chinese non-small cell lung cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz269.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Knowledge regarding the anti-inflammatory capability of quercetin remains inconclusive and controversial due to the heterogeneous methods and inconsistent results of RCTs. We performed a series of meta-analyses of RCTs to evaluate the impact of quercetin supplementation on inflammatory biomarkers. Three cytokines (CRP, IL-6, TNF-α) with enough eligible studies (n = 6, 5 and 4, respectively) were selected for further meta-analyses. Data from these RCTs were pooled, and both overall effect and stratified subgroup analyses were performed. No relevant overall effects on peripheral CRP, IL-6 and TNF-α were observed. Subgroup analyses revealed a significant reduction in circulating CRP in participants with diagnosed diseases (SMD: -0.24, 95% CI: -0.49, 0.00) and IL-6 in females (SMD: -1.37, 95% CI: -1.93, -0.81), subjects with diagnosed diseases (SMD: -1.37, 95% CI: -1.93, -0.81) and with high-dose interventions (SMD: -0.69, 95% CI: -1.10, -0.38). In conclusion, consumption of quercetin is a promising therapeutic strategy for chronic disease management.
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Affiliation(s)
- Qiaowen Ou
- Department of Clinical Nutrition, The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Zhifen Zheng
- Huangpu Customs District People's Republic of China, Guangzhou, PR China
| | - Yongyi Zhao
- Department of Clinical Nutrition, The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Weiqun Lin
- Department of Clinical Nutrition, The First Affiliated Hospital of Clinical Medicine of Guangdong Pharmaceutical University, Guangzhou, PR China
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Wang L, Li P, Tian Y, Li Z, Lian C, Ou Q, Jin C, Gao F, Xu JY, Wang J, Wang F, Zhang J, Zhang J, Li W, Tian H, Lu L, Xu GT. Human Umbilical Cord Mesenchymal Stem Cells: Subpopulations and Their Difference in Cell Biology and Effects on Retinal Degeneration in RCS Rats. Curr Mol Med 2019; 17:421-435. [PMID: 29210653 DOI: 10.2174/1566524018666171205140806] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 11/08/2017] [Accepted: 11/29/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Human umbilical cord mesenchymal stem cells (hUC-MSCs) are potential candidates for treating retinal degeneration (RD). OBJECTIVE To further study the biology and therapeutic effects of the hUC-MSCs on retinal degeneration. METHODS Two hUC-MSC subpopulations, termed hUC-MSC1 and hUC-MSC2, were isolated by single-cell cloning method and their therapeutic functions were compared in RCS rat, a RD model. RESULTS Although both subsets satisfied the basic requirements for hUC-MSCs, they were significantly different in morphology, proliferation rate, differentiation capacity, phenotype and gene expression. Furthermore, only the smaller, fibroblast-like, faster growing subset hUC-MSC1 displayed stronger colony forming potential as well as adipogenic and osteogenic differentiation capacities. When the two subsets were respectively transplanted into the subretinal spaces of RCS rats, both subsets survived, but only hUC-MSC1 expressed RPE cell markers Bestrophin and RPE65. More importantly, hUC-MSC1 showed stronger rescue effect on the retinal function as indicated by the higher b-wave amplitude on ERG examination, thicker retinal nuclear layer, and decreased apoptotic photoreceptors. When both subsets were treated with interleukin-6, mimicking the inflammatory environment when the cells were transplanted into the eyes with degenerated retina, hUC-MSC1 expressed much higher levels of trophic factors in comparison with hUC-MSC2. CONCLUSION The data here, in addition to prove the heterogeneity of hUC-MSCs, confirmed that the stronger therapeutic effects of hUC-MSC1 were attributed to its stronger anti-apoptotic effect, paracrine of trophic factors and potential RPE cell differentiation capacity. Thus, the subset hUC-MSC1, not the other subset or the ungrouped hUC-MSCs should be used for effective treatment of RD.
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Affiliation(s)
- L Wang
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China
| | - P Li
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - Y Tian
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - Z Li
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - C Lian
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - Q Ou
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - C Jin
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - F Gao
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - J-Y Xu
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - J Wang
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - F Wang
- Department of Ophthalmology of Shanghai Tenth People's Hospital, and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China
| | - J Zhang
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - J Zhang
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - W Li
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - H Tian
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - L Lu
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - G-T Xu
- Laboratory of Clinical Visual Science, Department of Regenerative Medicine, and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
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Liu YL, Luo SH, Ou Q, Yuan P, Lu MZ, Chen JN, Luo ZR, Lao MC, Cui JH, Gao XL. [The expressions of CTLA-4 and PD-1 on CD(4)(+) T cells and the level of plasma VEGF in patients with obstructive sleep apnea hypopnea syndrome]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:268-274. [PMID: 30955284 DOI: 10.3760/cma.j.issn.1001-0939.2019.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: CD(4)(+)T cells, cytotoxic T-lymphocyte antigen 4 (CTLA-4), programmed cell death-1 (PD-1) and vascular endothelial growth factor (VEGF) are associated with cancer development. The aim of the present study was to investigate the expression of CTLA-4, PD-1 and VEGF in patients with obstructive sleep apnea hypopnea syndrome (OSAHS). Methods: From January 2017 to January 2018, a total of 47 first-visit outpatients were recruited in the Sleep and Respiratory Disorder Center of Guangdong Provincial People's Hospital, and were divided into control group (N=17, mean age 54±12 years), mild-to-moderate OSAHS group (N=15, mean age 54±12 years) and severe OSAHS group (N=15, mean age 56±13 years). Venous blood was collected, plasma and cells were isolated, the expressions of PD-1 and CTLA-4 on the surface of CD(4)(+)T cells were detected by flow cytometry, and plasma VEGF was measured by enzyme linked immunosorbent assay. Results: The proportion of CD(4)(+)T cells in control group, mild-to-moderate OSAHS group and severe OSAHS group were respectively(38±8)%, (35±8)% and (38±6)% (F=1.228, P>0.05). The expression of CTLA-4 on CD(4)(+)T cells were respectively [1.13 (0.59~1.78)]%, [0.45 (0.16~1.43)]% and [0.87(0.47~1.46)]% (H=2.205, P>0.05). The expression of PD-1 on CD(4)(+)T cells were respectively [4.24 (2.12~6.03)]%, [3.54(2.69~5.09)]% and [3.31(1.67~8.25)]% (H=0.541, P>0.05). The concentrations of VEGF in control group, mild-to-moderate OSAHS group and severe OSAHS group were statistically different [(395.16±87.78) ng/L vs (452.85±107.97) ng/L vs (546.42±199.27) ng/L, F=4.827, P=0.013]. Compared with the control group, VEGF concentration was significantly increased in the severe OSAHS group(P<0.01). VEGF concentration was correlated negatively with the lowest SpO(2) (r (s)=-0.480,P=0.001), but positively with apnea-hypopnea index(r (s)=0.403, P=0.005), oxygen desaturation index (r (s)=0.378, P=0.010) and proportion of SpO(2) less than or equal to 90% of total sleep time(r (s)=0.547, P=0.000 3). Conclusion: There was no significant difference of PD-1 and CTLA-4 expression on CD(4)(+)T cells in patients with and without OSAHS. The expression of VEGF was elevated in OSAHS patients, and increased with the severity of OSAHS and hypoxia.
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Affiliation(s)
- Y L Liu
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Geriatric Institute, Guangzhou 510080, China
| | - S H Luo
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Geriatric Institute, Guangzhou 510080, China
| | - Q Ou
- Sleep Center, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - P Yuan
- Sleep Center, Guangdong Provincial People's Hospital, Guangzhou 510080, China
| | - M Z Lu
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Geriatric Institute, Guangzhou 510080, China
| | - J N Chen
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Geriatric Institute, Guangzhou 510080, China
| | - Z R Luo
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Geriatric Institute, Guangzhou 510080, China
| | - M C Lao
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Geriatric Institute, Guangzhou 510080, China
| | - J H Cui
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Geriatric Institute, Guangzhou 510080, China
| | - X L Gao
- Department of Respiratory and Critical Care Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangdong Geriatric Institute, Guangzhou 510080, China
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Song E, Yao H, Yu Y, Ou Q, Wang Y. Abstract P1-16-07: Progression-free survival is a surrogate of survival in maintenance therapy for metastatic breast cancer: Randomized trial level analysis. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p1-16-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background:The validity of progression-free survival (PFS) as a surrogate end point for overall survival (OS) in maintenance therapy trials of metastatic breast cancer (MBC) is uncertain. We aimed to compare treatment effect sizes and the strength of associations between OS and PFS in trials of maintenance therapy for MBC.
Methods: We searched for randomized trials investigating maintenance chemotherapy, endocrine therapy or immunotherapy after first-line chemotherapy in MBC and selected those reporting results for both OS and PFS. Treatment effect size differences between OS and PFS by a ratio of hazard ratios (rHRs) with 95% confidence intervals [CIs] were evaluated using random effects analysis. Surrogacy were analyzed using a weighted linear regression model, correlations were evaluated by squared correlation R2.
Results: We analyzed data from 16 trials and 3,898 patients that received maintenance chemotherapy, endocrine therapy or immunotherapy for MBC. In the all trial-level analysis, treatment effect sizes were 28% greater for PFS than for OS (combined rHR, 0.72; 95% CI, 0.62 to 0.85, P < 0.001), and the correlation coefficient R2 between PFS and OS was 18% (95% CI, 12% to 26%). Differences were greater with PFS than OS for trials of maintenance chemotherapy compared with observation (rHR, 0.72; 95% CI, 0.59 to 0.80, P < 0.001), and the correlation coefficient R2between treatment effects on PFS and on OS ranged from 12% (95% CI, 8% to 16%) when all trials were considered to 40% (95%CI, 30% to 54%) after exclusion of one highly influential trial by sensitivity analysis. Differences were also great for trials of maintenance endocrine therapy vs. observation (rHR, 0.54; 95% CI, 0.44 to 0.66), and immunotherapy vs. observation (rHR, 0.85; 95% CI, 0.80 to 0.91).
Conclusion: PFS was greater than OS in the treatment effect sizes, which is a valid surrogate end point for OS to assess treatment effect in MBC maintenance therapy trials.
PROSPERO registry: No. CRD42017071858; Support: ChiCTR-IIR-17014036, SYS-C-201801.
Citation Format: Song E, Yao H, Yu Y, Ou Q, Wang Y. Progression-free survival is a surrogate of survival in maintenance therapy for metastatic breast cancer: Randomized trial level analysis [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P1-16-07.
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Affiliation(s)
- E Song
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - H Yao
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Y Yu
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Q Ou
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Y Wang
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China; Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
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Lin J, He Y, Wang B, Xun Z, Chen S, Zeng Z, Ou Q. Blocking of YY1 reduce neutrophil infiltration by inhibiting IL-8 production via the PI3K-Akt-mTOR signaling pathway in rheumatoid arthritis. Clin Exp Immunol 2018; 195:226-236. [PMID: 30229869 DOI: 10.1111/cei.13218] [Citation(s) in RCA: 32] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2018] [Indexed: 12/21/2022] Open
Abstract
Our previous study revealed that Yin Yang 1(YY1) played an important part in promoting interleukin (IL)-6 production in rheumatoid arthritis (RA). However, whether YY1 has any role in regulation of IL-8 in RA remains unclear. YY1 and IL-8 expression in RA patients were analyzed by real-time polymerase chain reaction (PCR). Ingenuity pathway analysis (IPA) was used to analyze the signaling pathway involved in YY1-induced IL-8 production. The expression of YY1 and proteins involved in the pathway were detected by Western blot and enzyme-linked immunosorbent assay (ELISA). Migration of neutrophils was performed by chemotaxis assay. In this study, we found that high expression of IL-8 was positively associated with YY1 expression in RA. Blocking YY1 expression by YY1-short hairpin (sh)RNA lentivirus reduced IL-8 production. Mechanistically, we showed YY1 activated IL-8 production via the phosphatidylinositol-3-kinase/Akt/mammalian target of rapamycin (PI3K/Akt/mTOR) signaling pathway. Further, using a co-culture system consisting of peripheral blood mononuclear cells (PBMC) and neutrophils, we found that migration of neutrophils would be inhibited by YY1 RNA interference. Finally, using the collagen-induced arthritis animal model, we showed that treatment with the YY1-shRNA lentivirus led to reduction of IL-8 levels and attenuation of inflammation and neutrophil infiltration in vivo. Our results reveal a role of YY1 involved in neutrophil infiltration in RA via the PI3K/Akt/mTOR/IL-8 signaling pathway. YY1 may be a new therapeutic target for treatment of RA.
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Affiliation(s)
- J Lin
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, Fujian, China.,First Clinical College, Fujian Medical University, Fuzhou, China
| | - Y He
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, Fujian, China.,First Clinical College, Fujian Medical University, Fuzhou, China
| | - B Wang
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, Fujian, China.,First Clinical College, Fujian Medical University, Fuzhou, China
| | - Z Xun
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, Fujian, China.,First Clinical College, Fujian Medical University, Fuzhou, China
| | - S Chen
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, Fujian, China
| | - Z Zeng
- Department of Hematology and Rheumatology, the First Affiliated Hospital of Fujian Medical University, Fujian, China
| | - Q Ou
- Department of Laboratory Medicine, the First Affiliated Hospital of Fujian Medical University, Fujian, China.,First Clinical College, Fujian Medical University, Fuzhou, China
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Chen BX, Ou Q, Pan MX. [A cross-sectional survey of treatment acceptance and influence factors in patients with obstructive sleep apnea]. Zhonghua Yi Xue Za Zhi 2018; 98:1578-1581. [PMID: 29886648 DOI: 10.3760/cma.j.issn.0376-2491.2018.20.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To investigate the treatment acceptance in patients with obstructive sleep apnea (OSA) and its influence factors. Methods: This cross-sectional survey recruited OSA patients diagnosed at sleep center in Guangdong General Hospital from January 2014 to December 2015. By phone follow-up, a pre-designed questionnaire was performed for all adults, which composed of the following sections: treatment or none, treatment method, reason for non-treatment, revisit or none. Results: From 524 OSA patients with completed contact information, 480 (91.6%) valid questionnaires were collected. The apnea hypopnea index was (36.1±21.4) /h. The mild, moderate, severe OSA patients accounted for 12.5%(60 cases), 33.1%(159 cases), 54.4%(261 cases) respectively. For all 480 included subjects, 200 (41.7%) received treatment and among them 184 (92.0%) were treated by continuous positive airway pressure. The treatment rate was lower in mild OSA, non-obesity, female, and patients without daytime sleepiness. Receiving treatment was negative correlated to difficult falling asleep. The first reason of non-treatment was self-determined behavioral intervention and the second was self-concept of no requirement for treatment. The specialist revisit rate was 3.8%, which was slightly higher in treated patients and those with sudden awakening when feeling asphyxia. Conclusion: A majority of OSA patients do not receive treatment, primarily as a result of their self-determined behavior intervention and self-concept of no requirement for treatment.
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Affiliation(s)
- B X Chen
- Division of Respiratory Diseases, Guangdong Provincial Institute of Geriatrics, Guangdong Academy of Medical Sciences, Guangdong General Hospital, Guangzhou 510000, China (Chen Baixin is majoring in Clinical Medicine, Medical College, Shantou University)
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Ou Q. The effect of regular follow-up on long-term compliance with CPAP in patients with OSA. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yuan P, Wang WJ, Li DF, Ou Q, Gao XL. [The expression of macrophage migration inhibitory factor in obstructive sleep apnea hypopnea syndrome and its injury to endothelial cells]. Zhonghua Jie He He Hu Xi Za Zhi 2016; 39:871-875. [PMID: 27852364 DOI: 10.3760/cma.j.issn.1001-0939.2016.11.010] [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 study the expression of macrophage migration inhibitory factor (MIF) in obstructive sleep apnea hypopnea syndrome (OSAHS) and its injury to endothelial cells. Methods: According to the PSG test results, subjects who were the first time to take PSG examination without treatment (n=71) were divided into a control group (n=20), a mild OSAHS group (n=19), a moderate OSAHS group (n=15) and severe OSAHS group (n=17). For each patients, 4 ml fasting peripheral blood was obtained when PSG was finished around 6: 30 in the next morning, and the MIF level in plasma was detected with the ELISA method. Peripheral blood mononuclear cells (PBMC) from the control group and the severe OSAHS patients were cocultured with umbilical vein endothelial cells (HUVEC) for 72 hours. The apoptosis of HUVEC was detected by flow cytometry, while ET-1, NO, sICAM-1 and IL-6 in the supernatants were measured with the ELISA method. Results: The plasma level of MIF in the control group and the mild, the moderate, and the severe OSAHS patients was (26±8), (28±9), (31±14), (39±15) ng/ml, respectively (F=15.65, P<0.001), and it was higher in the severe OSAHS group as compared to the control group(P<0.01). The level of MIF was associated positively with the apnea hypoventilation index (AHI, r=0.365, P=0.008) and the oxygen index reduction (ODI, r=0.308, P=0.308) n but negatively with the lowest blood oxygen (r=0.323, P=0.323). Endothelial cell apoptosis rate in the control group and the severe OSAHS group was (2.94±1.02) %, (8.23± 3.01) %, respectively, t=5.97, P<0.001. ET-1 in the control group and the severe OSAHS group was (6.71±5.52), (9.88±4.79) pg/ml, respectively, t=3.018, P=0.141. sICAM-1 in the control group and the severe OSAHS group was (11±8), (20±7) ng/ml, respectively, t=7.58, P=0.014. NO in the control group and the severe OSAHS group was (35±16), (25±5) mol/L, respectively, t=2.01, P=0.067. IL-6 in the control group and the severe OSAHS group was (220±42), (436±178) mol/L, respectively, t=2.77, P<0.05. Conclusion: MIF is closely related to the degree of OSAHS severity, and it may be involved in the development and endothelial injury in OSAHS.
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Affiliation(s)
- P Yuan
- Southern Medical University, Guangzhou 510515, China
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35
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Li P, Ou Q, Chen G, Oduncu F. MicroRNA as predictive biomarker of survival for stage IIIB colon cancer patients. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw370.80] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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36
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Wang Q, Ou Q, Tian XT, Chen YC, Nie ZQ, Gao XL. [Analysis of long-term compliance to continuous positive airway pressure in patients with obstructive sleep apnea]. Zhonghua Yi Xue Za Zhi 2016; 96:2380-4. [PMID: 27545028 DOI: 10.3760/cma.j.issn.0376-2491.2016.30.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To explore the continuous positive airway pressure (CPAP) therapy compliance in patients with obstructive sleep apnea (OSA). METHODS This prospective study recruited a group of subjects from May 2009 to December 2013 who were diagnosed and had accepted CPAP treatment in Sleep Center of Guangdong General Hospital, and the patients were followed-up regularly for long-term and assessed the CPAP treatment compliance. The patients were diagnosed, had pressure titration and CPAP treatment through out of center sleep test. The subjects were followed-up for 1 st, 3rd, 6th, 12th month, and each year regularly after accepting the CPAP treatment in Sleep Center by face to face follow-up with specialist physicians. Physicians followed-up the patients' subjective symptoms, CPAP adherence, patient education and side effect solutions. The patients were classified into good and poor compliance groups, and statistical analysis was done between the two groups. RESULTS There were 77 cases enrolled until December 2015, only 73 patients completed the study. The patients were followed-up about 2-6 years, the average was (3.93±1.29) years, the compliance accounted for 54.8% (40/73), and the average compliance was (4.02±1.87) hours/night. The trend of the long-term compliance showed that there was a gradual increase within the first 3 months of CPAP treatment and then the compliance decreased; it then increased gradually after the first two years. The good compliance group showed that the compliance increased gradually in the initial 3 months, and then fell; from the first year to the 3rd year, the compliance was stable; after the 3rd year there was a drop and the compliance tended to increase again after the 4th year. The poor compliance group showed the compliance had a downward trend from the beginning of the first two years, then after a brief rise, the compliance decreased linearly. Multivariate analysis showed that long-term compliance was not associated with age, daytime sleepiness (ESS), oxygen desaturation index (ODI), anxiety, depression (P>0.05), etc. However, it was associated with the time of the titration treatment (P<0.001), the time of the flow monitored (P<0.01) and the number of the pressure titration within one week (P<0.05). CONCLUSIONS Long-term compliance shows a curve change, the increased compliance is related with the regular follow-up. Long-term compliance can be predicted by the degree of cooperation with the initial diagnosis and treatment.
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Affiliation(s)
- Q Wang
- Division of Respiratory Diseases, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Provincial Institute of Geriatrics (Wang Qian Is Studying in Clinical Medicine, Shantou University Medical College), Guangzhou 510080, China
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Li P, Tian H, Li Z, Wang L, Gao F, Ou Q, Lian C, Li W, Jin C, Zhang J, Xu JY, Wang J, Wang F, Lu L, Xu GT. Subpopulations of Bone Marrow Mesenchymal Stem Cells Exhibit Differential Effects in Delaying Retinal Degeneration. Curr Mol Med 2016; 16:567-81. [DOI: 10.2174/1566524016666160607090953] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Revised: 05/27/2016] [Accepted: 05/31/2016] [Indexed: 11/22/2022]
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Tang Y, Diao Y, Chen H, Ou Q, Liu X, Gao X, Yu C, Wang L. Isolation and genetic characterization of a tembusu virus strain isolated from mosquitoes in Shandong, China. Transbound Emerg Dis 2013; 62:209-16. [PMID: 23711093 DOI: 10.1111/tbed.12111] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Indexed: 11/29/2022]
Abstract
Tembusu virus (TMUV) is a flavivirus, presumed to be a mosquito-borne flavivirus of the Ntaya virus subgroup. To date, however, there have been no reports indicating that mosquitoes are involved in the spread of TMUV. In this study, we report the first isolation of TMUV from Culex mosquitoes. We describe the isolation and characterization of a field strain of TMUV from mosquitoes collected in Shandong Province, China. The virus isolate, named TMUV-SDMS, grows well in mosquito cell line C6/36, in Vero and duck embryo fibroblast (DEF) cell lines, and causes significant cytopathic effects in these cell cultures. The TMUV-SDMS genome is a single-stranded RNA, 10 989 nt in length, consisting of a single open reading frame encoding a polyprotein of 3410 amino acids, with 5' and 3' untranslated regions of 142 and 617 nt, respectively. Phylogenetic analysis of the E and NS5 genes revealed that the TMUV-SDMS is closely related to the TMUV YY5 and BYD strains which cause severe egg-drop in ducks. The 3'NTR of TMUV-SDMS contains two pairs of tandem repeat CS and one non-duplicate CS, which have sequence similarities to the same repeats in the YY5 and BYD strains. Our findings indicate that mosquitoes carrying the TMUV may play an important role in the spread of this virus and in disease outbreak.
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Affiliation(s)
- Y Tang
- Institute of Poultry Disease, Shan Dong Agricultural University, Taian, Shan Dong Province, China
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Ou Q, Li SJ, Cheng XJ. Cerebral sparganosis: A case report. Biosci Trends 2010; 4:145-147. [PMID: 20592465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Sparganosis is a rare parasitic infection in humans caused by a larval cestode of the genus Spirometra. Spargana invade muscle, subcutaneous tissue, the eye, urogenital, and abdominal viscera, but the central nervous system (CNS) is not a frequent site of invasion. Here, we describe an 18-year-old patient with cerebral sparganosis and review data from other cases reported in the medical literature.
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Affiliation(s)
- Q Ou
- Department of Microbiology and Parasitology, Shanghai Medical College of Fudan University, China
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40
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Song L, Ou Q, Yu W. Study on Phosphate of Ethylenediamine, 1,3-Diaminopropane and 1,4-Diaminobutane as Carrying Electrolyte in Open-Tubular Capillary Electrophoresis. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10826079408013471] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- L. Song
- a Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou , Gansu , 730000The People's Republic of China
| | - Q. Ou
- a Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou , Gansu , 730000The People's Republic of China
| | - W. Yu
- a Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou , Gansu , 730000The People's Republic of China
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Wang J, Li W, Min J, Ou Q, Chen J, Song E. Intrasplenic transplantation of allogeneic hepatocytes modified by BCL-2 gene protects rats from acute liver failure. Transplant Proc 2005; 36:2924-6. [PMID: 15686661 DOI: 10.1016/j.transproceed.2004.09.069] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Apoptosis of donor hepatocytes may be induced by recipient cytotoxic T lymphocytes (CTLs) during acute rejection, representing a major impediment for these cell transplants. Because the mechanisms of transplanted hepatocyte loss involve Fas-mediated pathways, BCL-2 genetic modification may protect liver cells. In the present study, we further investigated whether BCL-2 transfer into transplanted liver cells rendered them resistant to Fas ligand-induced apoptosis, and protected rats from acute liver failure. MATERIALS AND METHODS Hepatocytes isolated from Sprague-Dawley rats were infected with an adenovirus vector encoding human BCL-2 gene (AdCMVBCL-2) or a control AdCMVLacZ vector. Forty-eight hours later, cells challenged with recombinant Fas ligand (rhsFasL) were assayed for apoptosis using TUNEL staining and caspase 3 activity. Other cells were transplanted into the spleens of Wistar rats with a 90% hepatectomy 12 hours later. RESULTS Western blot analysis and RT-PCR confirmed the expression of hBcl-2 in AdCMVhBcl-2-infected hepatocytes. Recombinant FasL produced a dose-dependent increase in TUNEL-positive percentage and caspase-3 activity in uninfected hepatocytes, but did not influence these features in AdCMVhBcl-2-infected cells. On challenge with 90% hepatectomy, the survival of Wistar rats receiving transplantation of AdCMVhBCL-2-infected hepatocytes was significantly prolonged compared with the controls. CONCLUSION Adenovirus-mediated BCL-2 gene transfer protects transplanted hepatocytes from Fas-mediated cytolysis, thus holding promise for a new avenue of acute liver failure treatment.
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Affiliation(s)
- J Wang
- Department of Surgery, Sun-Yat-Sen Memorial Hospital, Guangzhou, China
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Abstract
BACKGROUND Synthetic siRNAs 21 to 23 nucleotides in length silence gene expression posttranscriptionally, and RNA interference targeting Fas protects mice from fulminant hepatitis. Fas-mediated apoptosis has also been implied in the mechanism of hepatocyte apoptosis upon allogenic hepatocyte transplantation (HTx), and blockade of Fas and Fas ligand interaction successfully promotes the repopulation of allogenic liver cells in recipient spleens. In the present study, we further investigated the protective effects of Fas silencing on allogeneic hepatocytes transplanted into mouse spleens. MATERIALS AND METHODS Hepatocytes were isolated from BALB/c mice and mock transfected or transfected with Fas siRNA or GFP siRNA (n = 8/group). The expression of Fas was examined by RT-PCR and flow cytometric analysis. Forty-eight hours later, the cells were transplanted into spleens of allogenic B6 mice. Spleens were harvested on day 21 after transplantation. Apoptosis was assessed by TUNEL assay, survival of hepatocytes by alanine transaminase (ALT) assay. RESULTS Fas siRNA transfection reduced Fas expression on hepatocytes at both mRNA and protein levels (P <.05). Upon transplanting into recipient spleens, hepatocytes transfected with Fas siRNA demonstrated a lower percentage of apoptosis detected by TUNEL (6 +/- 3% in Fas siRNA group vs 12 +/- 5% in GFP siRNA group and 10 +/- 3% in mock transfected group; P <.05), and increased survival as determined by ALT assay (38.2 +/- 10.6 IU/g in Fas siRNA group vs 21.3 +/- 8.4 IU/g in GFP siRNA group and 18.5 +/- 5.9 IU/g in mock-transfected animals). CONCLUSIONS Fas silencing by RNA interference reduces apoptosis and increases survival of allogenic transplanted hepatocytes, and thus holds promise to inhibit acute rejection after hepatocyte transplantation.
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Affiliation(s)
- J Wang
- Department of Surgery, Sun-Yat-Sen Memorial Hospital of Sun-Yat-Sen University of Medical Science, Guangzhou, China.
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Abstract
BACKGROUND A major obstacle in allogenic hepatocyte transplantation is increased apoptosis of grafted cells due to CTL-based cytotoxicity. However, whether blockade of Fas- and granzyme-mediated pathways of CTL-based cytotoxicity may provide immune protection to transplanted hepatocytes is poorly defined. Our study aimed to reduce apoptosis of allogenic transplanted hepatocytes by inhibiting granzyme B (GraB) activity and blocking Fas-FasL interaction. MATERIALS AND METHODS Hepatocyte transplantation was performed by inoculating isolated liver cells from ACI rats (allogenic) or Lewis rats (syngenic) into the spleens of Lewis rats. Recipients were treated with FLIM58, an inhibitory anti-FasL mAb, and GraB inhibitor I alone or a combination of the two drugs for 5 days after transplantation, and were sacrificed at Day 7. Apoptosis of transplanted hepatocytes was detected in situ by TUNEL assay and M30 immunostaining. Glutamate dehydrogenase (GLDH) activity in recipient spleens was examined to evaluate survival of transplanted cells. Recipient spleens were assayed for FasL level with Western blotting and for GraB activity by hydrolysis of GraB substrate. RESULTS FLIM58 or GraB inhibitor I significantly reduced the percentage of TUNEL-positive and M30-positive hepatocytes and markedly increased GLDH levels in allogenic, but not syngenic, recipient spleens. These effects were more pronounced when the two drugs were used in combination (P < 0.05). Additionally, elevation of FasL and GraB levels in allogenic recipient spleens can be significantly reduced by FLIM58 and GraB inhibitor I, respectively. CONCLUSIONS Inhibition of GraB activity and blockade of Fas-FasL interaction reduce the apoptosis of allogenic transplanted hepatocytes, and thus improve their survival.
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Affiliation(s)
- E Song
- Department of Surgery, Sun-Yat-Sen Memorial Hospital, Guangzhou, Peoples Republic of China.
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Abstract
BACKGROUND It has been demonstrated that colorectal carcinomas rarely metastasize to diseased livers. However, this phenomenon has not been thoroughly evaluated in patients with various forms of chronic hepatitis B virus (HBV) infection. Therefore, the present study examined the relationship between the incidence of hepatic metastasis of colorectal carcinomas and chronic HBV infection, with emphasis on the influence of HBV viral replication and chronic liver damage. METHODS We analyzed the clinicopathological data of 512 patients undergoing surgical treatment of colorectal carcinomas at our department from 1992 to 1998. Among these cases, 74 had chronic HBV infection, including 28 cases with HBV replication and 21 with chronic liver damage. RESULTS The incidence of liver metastasis in the HBV infection group (13.5%) was significantly lower than that of the noninfection group (27.1%, P <0.05). In addition, patients with HBV infection survived longer than those without infection (P = 0.018). Furthermore, liver metastatic rate in patients with HBV replication (3.6%) was lower than those without virus replication (19.6%, P <0.05). In contrast, there was no significant difference in liver metastasis between HBV infected patients with or without chronic liver damage (P >0.05). CONCLUSIONS Chronic HBV infection with viral replication reduces hepatic metastasis of colorectal cancer, and thus prolongs the survival of patients.
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Affiliation(s)
- E Song
- Department of Surgery, Sun-Yat-Sen Memorial Hospital, Sun-Yat-Sen University of Medical Science, 107, Yanjiang West Road, 510120, Guangzhou, China.
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Li N, Yao Y, Ou Q. [Preliminary investigation of the relationship between liver lesion and relevant factors in young children with rotavirus diarrhea]. Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi 2001; 15:51-4. [PMID: 12526304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate the possibility of liver lesion and its relationship with the relative factors in young children with rotavirus(RV) diarrhea. METHODS The values of ALT and AST in sera of young children with RV diarrhea were measured to be compared with those of common diarrhea and were analyzed with the multifactors about diarrhea. The genomes of RV from blood serum were tested with reverse-nest polymerase chain reaction. RESULTS Of the 41 young children with RV diarrhea, 15(36.6%) and 32 cases (75.6%) were abnormally higher in the level of ALT and AST respectively and both the ratio and degree of increase were significant in comparison with that in control group. There was no significant relation between the changes of the values of ALT and AST and the clinical manifestation of diarrhea. 4 out of 41 cases were found to be positive of viremia. CONCLUSION RV infection might spread from intestine to blood and to other organs resulting in viremia, and the liver may be one of the organs involved.
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Affiliation(s)
- N Li
- Department of Pediatrics, Nanfang Hospital, First Military Medical University, Guangzhou 510515, China
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Abstract
The nuclear receptor steroidogenic factor-1 (SF-1) is essential for development of the gonads, adrenal gland, and the ventromedial hypothalamic nucleus. It also regulates the expression of pivotal steroidogenic enzymes and other important proteins in the reproductive system. We sought to elucidate the mechanisms that govern the transcriptional activity of SF-1. We demonstrate here that a previously uncharacterized domain, located C-terminal to the DNA binding domain of SF-1, exhibits transcriptional repression function. Point mutations in this domain markedly potentiate the transcriptional activity of native SF-1. Using an SF-1 region that spans this proximal repression domain as bait in a yeast two-hybrid system, we cloned an SF-1 interacting protein that is homologous to human DP103, a member of the DEAD box family of putative RNA helicases. DP103 directly interacts with the proximal repression domain of SF-1, and mutations in this domain abrogate its interaction with DP103. DP103 is expressed predominantly in the testis and is also expressed at a lower level in other steroidogenic and nonsteroidogenic tissues. Functionally, DP103 exhibits a native transcriptional repression function that localizes to the C-terminal region of the protein and represses the activity of wild-type, but not mutant, SF-1. Together, the physical and functional interaction of DP103 with a previously unrecognized repression domain within SF-1 represents a novel mechanism for regulation of SF-1 activity.
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Affiliation(s)
- Q Ou
- Department of Obstetrics and Gynecology, Washington University School of Medicine St. Louis, Missouri 63110, USA
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Ou Q, Mouillet JF, Yan X, Dorn C, Crawford PA, Sadovsky Y. Steroidogenic factor 1 is a monomeric orphan, but does not work alone. Endocr Res 2000; 26:1003-4. [PMID: 11196408 DOI: 10.3109/07435800009048630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Q Ou
- OB/GYN Department, Washington University School of Medicine, St. Louis, MO 63110, USA
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Lao W, Xu C, Ji S, You J, Ou Q. Electronic and vibrational spectra of a series of substituted carbazole derivatives. Spectrochim Acta A Mol Biomol Spectrosc 2000; 56A:2049-2060. [PMID: 11058049 DOI: 10.1016/s1386-1425(00)00261-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The FTIR and FTR spectra of halogen (Cl, Br, I) substituted carbazole and their N-acetic and propionic acids have been recorded. A number of lines have been assigned on the basis of previous studies on the parent compound and by comparisons with the characteristic vibrations of their constituent structural units as well as comparing the spectra from FTIR and FTR. Some substituent-sensitive bands and characteristic bands were found. The electronic absorption spectra of these compounds in acetonitrile were also measured and are briefly discussed.
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Affiliation(s)
- W Lao
- Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lan Zhou
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Lin IG, Tomzynski TJ, Ou Q, Hsieh CL. Modulation of DNA binding protein affinity directly affects target site demethylation. Mol Cell Biol 2000; 20:2343-9. [PMID: 10713158 PMCID: PMC85401 DOI: 10.1128/mcb.20.7.2343-2349.2000] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/1999] [Accepted: 12/28/1999] [Indexed: 11/20/2022] Open
Abstract
It has recently been shown that in Xenopus, DNA demethylation at promoter regions may involve protein-DNA interactions, based on the specificity of the demethylated sites. Utilizing a stable episomal system in human cells, we recently mapped the sites and dissected the steps of demethylation at oriP sites bound by EBNA1 protein. Although it is clear that protein binding is required for demethylation of the oriP sites, it is uncertain whether this is a unique feature of the replication origin or whether it is a general phenomenon for all DNA sequences to which sequence-specific proteins are bound. In the present study, we utilize the well-defined Escherichia coli lac repressor/operator system in human cells to determine whether protein binding to methylated DNA, in a region that is neither a replication origin nor a promoter, can also lead to demethylation of the binding sites. We found that demethylation specified by protein binding is not unique to the replication origin or to the promoter. We also found that transcriptional activity does not influence demethylation of the lac operator. Isopropyl-beta-D-thiogalactopyranoside (IPTG), an inhibitor of the lac repressor, can prevent demethylation of the lac operator DNA sites and can modulate demethylation of the lac operator by affecting the binding affinity of the lac repressor. Using this system, a titration of protein binding can be done. This titration permits one to infer that protein binding site occupancy is the determinant of demethylation at DNA sites and permits a determination of how this process progresses over time.
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Affiliation(s)
- I G Lin
- Department of Urology and Department of Biochemistry and Molecular Biology, University of Southern California, Norris Cancer Center, Los Angeles, California 90033, USA
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Li H, Ou Q, Chen J. [Combined hepatic artery chemoembolization and portal vein chemotherapy after radical resection of hepatocellular carcinoma to prevent recurrence]. Zhonghua Zhong Liu Za Zhi 2000; 22:61-3. [PMID: 11776603] [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: 02/23/2023]
Abstract
OBJECTIVE To study the value of combined hepatic artery chemoembolization (HACE) and portal vein chemotherapy (PVC) after radical resection of hepatocellular carcinoma (HCC) to prevent recurrence. METHODS From August 1991 to July 1995, 81 HCC patients were undergone radical tumor resection. After operation, combined treatment with HACE and PVC was given in group I (28 cases), HACE alone in group II (30 cases), nothing in group III (28 cases). All patients were followed up over 3 years. RESULTS Recurrence rate at one year after surgery was significantly lower in group I and II than in group III; at two years, it was lower in group I than in group II and III. Survival rate at one year was notably higher in group I and II than in group III; at 2 years, it was higher in group I than in group II and III. Recurrence rate and survival rate were similar in group I and group II at 3 and 5 years after surgery. Tumor larger than 5 cm, no capsule, multiple foci, AFP > 400 micrograms/L were high risk factors of postoperative recurrence. CONCLUSION After radical resection of HCC, combined use of HACE and PVC is superior to HACE alone to reduce recurrence rate and to increase survival rate within 2 years after operation. Such remarkable difference no more exists at 3 and 5 years following operation.
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Affiliation(s)
- H Li
- Department of Surgery, Memorial Hospital, Sun Yat-sen University of Medical Sciences, Guangzhou 510120, China
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