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Ou Q, Tang S, Zhu J, Xue S, Huang H, Zhao Y, Cai Y, Wu C, Chen J, Ruan G, Ding C. Spermidine ameliorates osteoarthritis via altering macrophage polarization. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167083. [PMID: 38367900 DOI: 10.1016/j.bbadis.2024.167083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 02/01/2024] [Accepted: 02/12/2024] [Indexed: 02/19/2024]
Abstract
OBJECTIVE Spermidine (SPD) is an anti-aging natural substance, and it exerts effects through anti-apoptosis and anti-inflammation. However, the specific protective mechanism of SPD in osteoarthritis (OA) remains unclear. Here, we explored the role of SPD on the articular cartilage and the synovial tissue, and tested whether the drug would regulate the polarization of synovial macrophages by in vivo and in vitro experiments. METHODS By constructing an OA model in mice, we preliminarily explored the protective effect of SPD on the articular cartilage and the synovial tissue. Meanwhile, we isolated and cultured human primary chondrocytes and bone marrow-derived macrophages (BMDMs), and prepared a conditioned medium (CM) to explore the specific protective effect of SPD in vitro. RESULTS We found that SPD alleviated cartilage degeneration and synovitis, increased M2 polarization and decreased M1 polarization in synovial macrophages. In vitro experiments, SPD inhibited ERK MAPK and p65/NF-κB signaling in macrophages, and transformed macrophages from M1 to M2 subtypes. Interestingly, SPD had no direct protective effect on chondrocytes in vitro; however, the conditioned medium (CM) from M1 macrophages treated with SPD promoted the anabolism and inhibited the catabolism of chondrocytes. Moreover, this CM markedly suppressed IL-1β-induced p38/JNK MAPK signaling pathway activation in chondrocytes. CONCLUSIONS This work provides new perspectives on the role of SPD in OA. SPD does not directly target chondrocytes, but can ameliorate the degradation of articular cartilage through regulating M1/M2 polarization of synovial macrophages. Hence, SPD is expected to be the potential therapy for OA.
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Affiliation(s)
- Qianhua Ou
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, China; Department of Intensive Care Unit, Zhongshan City People's Hospital, Zhongshan, Guangdong 528403, China.
| | - Su'an Tang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, China.
| | - Jianwei Zhu
- Department of Orthopedics, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou 510000, China.
| | - Song Xue
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, China; Department of Rheumatology and Immunology, Arthritis Research Institute, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China.
| | - Hong Huang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, China.
| | - Yang Zhao
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, China.
| | - Yu Cai
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, China.
| | - Cuixi Wu
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, China.
| | - Jianmao Chen
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, China.
| | - Guangfeng Ruan
- Clinical Research Centre, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou 510000, China.
| | - Changhai Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510000, China; Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania 7000, Australia.
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Li Y, Ou Q, Lu Y, Shen Z, Li J, Zhang Z, Tai L, Li G, Chen H, Zhang G, Zhang L, Sun X, Qiu J, Wei Y, Zhu S, Wang Z, Sun W, Huang Y. Geographic differences in pharmacotherapy patterns and outcomes of acute ischemic stroke in China. BMC Neurol 2024; 24:64. [PMID: 38360588 PMCID: PMC10868026 DOI: 10.1186/s12883-024-03564-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 02/06/2024] [Indexed: 02/17/2024] Open
Abstract
BACKGROUND Vast economic and healthcare status discrepancies exist among regions in China, contributing to different treatment patterns. This study was aimed to investigate the current status of pharmacotherapy for acute ischemic stroke (AIS) and outcomes in China and explore the geographic variation in stroke care. METHODS This study was a multicenter prospective registry study, which collected the data of patients with AIS from 80 hospitals in 46 cities in 2015-2017 across China. Poor functional outcome defined as a modified Rankin Scale score of 3-6 was assessed at 3 and 12 months. Multivariate logistic regression was used. RESULTS Among 9973 eligible patients, the number of receiving intravenous thrombolysis (IVT), antiplatelet agents, anticoagulants, statin and human urinary kallidinogenase was 429 (4.3%), 9363 (93.9%), 1063 (10.7%), 6828 (74.7%) and 5112 (51.2%), respectively. Multivariable analysis showed IVT use in northeastern was significantly more frequent than in eastern region (OR = 3.17, 95% CI, 2.53-3.99), while the antiplatelets agents use were less frequent (OR = 0.46, 95%CI: 0.38-0.57). The proportions of poor outcomes at 3 and 12 months were 20.7% and 15.8%, respectively. Multivariate analysis showed AIS patients from northeastern and central region had significantly lower risk of poor outcome at month 3 and 12 than those from eastern region (all P < 0.05). CONCLUSIONS There was a low IVT use and a high antiplatelet agent and statin use for AIS in China. The pharmacotherapy and prognosis of AIS had variation by geographic region. TRIAL REGISTRATION This study was registered with ClinicalTrials.gov (NCT02470624).
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Affiliation(s)
- Ying Li
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, China
- Beijing Key Laboratory of Neurovascular disease discovery, Beijing, China
| | - Qianhua Ou
- Department of medical affairs, Techpool Bio-Pharma Co., LTD, Guangzhou, China
| | - Yuxuan Lu
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, China
- Beijing Key Laboratory of Neurovascular disease discovery, Beijing, China
| | - Zhiyuan Shen
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, China
- Beijing Key Laboratory of Neurovascular disease discovery, Beijing, China
| | - Jieyu Li
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, China
- Beijing Key Laboratory of Neurovascular disease discovery, Beijing, China
| | - Zhuangzhuang Zhang
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, China
- Beijing Key Laboratory of Neurovascular disease discovery, Beijing, China
| | - Liwen Tai
- Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, China
| | - Guozhong Li
- Department of Neurology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Huisheng Chen
- Department of Neurology, General Hospital of Shenyang Military Command, Shenyang, China
| | - Guiru Zhang
- Department of Neurology, Penglai People's Hospital, Penglai, China
| | - Lei Zhang
- Department of Neurology, Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, China
| | - Xuwen Sun
- Department of Neurology, Qindao University Medical College Affiliated Yantai Yuhuangding Hospital, Yantai, China
| | - Jinhua Qiu
- Department of Neurology, Huizhou First Hospital, Huizhou, China
| | - Yan Wei
- Department of Neurology, Harrison International Peace Hospital, Hengshui, China
| | - Sainan Zhu
- Department of Biostatistics, Peking University First Hospital, Beijing, China
| | - Zhaoxia Wang
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, China
- Beijing Key Laboratory of Neurovascular disease discovery, Beijing, China
| | - Weiping Sun
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, China.
- Beijing Key Laboratory of Neurovascular disease discovery, Beijing, China.
| | - Yining Huang
- Department of Neurology, Peking University First Hospital, 8 Xishiku Street, Xicheng District, Beijing, 100034, China.
- Beijing Key Laboratory of Neurovascular disease discovery, Beijing, China.
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Zhao Y, Ou Q, Cai Y, Ruan G, Zhang Y, Ding C. Shedding light on experimental intra-articular drugs for treating knee osteoarthritis. Expert Opin Investig Drugs 2023. [PMID: 37310287 DOI: 10.1080/13543784.2023.2225214] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Knee osteoarthritis (KOA) is a leading cause of disability among older adults without a curative therapy available. The development of disease-modifying OA drugs based on intra-articular injection (IA) is drawing extensive attention for its advantages in bioavailability and reduced systemic exposure. Based on the newly revealed pathogenesis of OA, several experimental IA drugs are successful in preclinical studies; moreover, some of them are in different phases of randomized clinical trials, bringing new opportunities for disease modification of OA. AREAS COVERED This is a targeted literature review to summarize experimental IA drugs targeting cartilage repair, cellular homeostasis, cellular senescence, and pain control. We also introduced targeted gene/oligonucleotide products. EXPERT OPINION Currently available therapeutics for KOA remain symptomatic relief and surgical replacement of damaged joints. Recently emerging experimental IA drugs are in different stages of development and are likely to enter practice in the near future and address many of the unmet needs. The major challenges for development of the new drugs are limited knowledge about the responsive subjects, heterogenicity of subjects and the complexity of the disease. Despite this, IA-based experimental drugs still hold great potential to be future disease-modifying treatments for their intrinsic advantages.
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Affiliation(s)
- Yang Zhao
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qianhua Ou
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yu Cai
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Guangfeng Ruan
- Clinical Research Centre, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, China
| | - Yan Zhang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Changhai Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, China
- Clinical Research Centre, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, China
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Zhang C, Huang H, Chen J, Zuo T, Ou Q, Ruan G, He J, Ding C. DNA Supramolecular Hydrogel-Enabled Sustained Delivery of Metformin for Relieving Osteoarthritis. ACS Appl Mater Interfaces 2023; 15:16369-16379. [PMID: 36945078 DOI: 10.1021/acsami.2c20496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Osteoarthritis (OA) is a musculoskeletal disorder affecting ∼500 million people worldwide. Metformin (MET), as an oral hypoglycemic drug approved by the Food and Drug Administration, has displayed promising potential for treating OA. Nonetheless, in the articular cavity, MET suffers from rapid clearance and cannot circumvent the severe inflammatory environment, greatly confining the therapeutic efficacy. Herein, DNA supramolecular hydrogel (DSH) has been utilized as a sustained drug delivery vehicle for MET to treat OA, which dramatically prolonged the retention time of MET in the articular cavity from 3 to 14 days and simultaneously exerted a greater anti-inflammatory effect. Our delivery platform, termed MET@DSH, better protects cartilage than single-agent MET. Additionally, the corresponding molecular mechanisms underlying the therapeutic effects were also analyzed. We anticipate this DNA supramolecular hydrogel-enabled sustained drug delivery and anti-inflammatory strategy will reshape the current landscape of OA treatment.
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Affiliation(s)
- Chao Zhang
- Clinical Research Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
- Department of Rheumatology and Immunology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Hong Huang
- Clinical Research Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
- Department of Rheumatology and Immunology, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Jianmao Chen
- Clinical Research Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
- Centre of Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Tingting Zuo
- College of Biological and Geographical Sciences, Yili Normal University, Yining, Xingjiang 835000, China
| | - Qianhua Ou
- Clinical Research Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
| | - Guangfeng Ruan
- Clinical Research Centre, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong 510180, China
| | - Jian He
- Department of Nuclear Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Changhai Ding
- Clinical Research Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong 510282, China
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania 7000, Australia
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Cai Y, Wu C, Ou Q, Zeng M, Xue S, Chen J, Lu Y, Ding C. Enhanced osteoarthritis therapy by nanoengineered mesenchymal stem cells using biomimetic CuS nanoparticles loaded with plasmid DNA encoding TGF-β1. Bioact Mater 2023; 19:444-457. [PMID: 35574050 PMCID: PMC9079106 DOI: 10.1016/j.bioactmat.2022.04.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 04/11/2022] [Accepted: 04/21/2022] [Indexed: 11/21/2022] Open
Abstract
Mesenchymal stem cells (MSCs) therapy shows the potential benefits to relieve clinical symptoms of osteoarthritis (OA), but it is uncertain if it can repair articular cartilage lesions — the main pathology of OA. Here, we prepared biomimetic cupper sulfide@phosphatidylcholine (CuS@PC) nanoparticles (NPs) loaded with plasmid DNA (pDNA) encoding transforming growth factor-beta 1 (TGF-β1) to engineer MSCs for enhanced OA therapy via cartilage regeneration. We found that the NPs not only promoted cell proliferation and migration, but also presented a higher pDNA transfection efficiency relative to commercial transfection reagent lipofectamine 3000. The resultant CuS/TGF-β1@PC NP-engineered MSCs (termed CTP-MSCs) were better than pure MSCs in terms of chondrogenic gene expression, glycosaminoglycan deposition and type II collagen formation, favoring cartilage repair. Further, CTP-MSCs inhibited extracellular matrix degradation in interleukin-1β-induced chondrocytes. Consequently, intraarticular administration of CTP-MSCs significantly enhanced the repair of damaged cartilage, whereas pure MSCs exhibited very limited effects on cartilage regeneration in destabilization of the medial meniscus (DMM) surgical instability mice. Hence, this work provides a new strategy to overcome the limitation of current stem cell therapy in OA treatment through developing more effective nanoengineered MSCs. Biomimetic CuS nanoparticles (NPs) loaded with TGF-β1 pDNA are prepared for nanoengineering of MSCs. CuS/TGF-β1@PC NPs are more efficient than commercial transfection agent in terms of pDNA transfection. The NP-engineered CTP-MSCs exhibit enhanced migration, chondrogenesis and inhibition of ECM degradation. CTP-MSCs effectively treat osteoarthritis (OA) mice models via cartilage regeneration.
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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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Fan T, Chen S, Zeng M, Li J, Wang X, Ruan G, Cao P, Zhang Y, Chen T, Ou Q, Wang Q, Wluka AE, Cicuttini F, Ding C, Zhu Z. Osteophytes mediate the associations between cartilage morphology and changes in knee symptoms in patients with knee osteoarthritis. Arthritis Res Ther 2022; 24:217. [PMID: 36076236 PMCID: PMC9454107 DOI: 10.1186/s13075-022-02905-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 08/22/2022] [Indexed: 11/16/2022] Open
Abstract
Aims To investigate whether the associations between cartilage defects and cartilage volumes with changes in knee symptoms were mediated by osteophytes. Methods Data from the Vitamin D Effects on Osteoarthritis (VIDEO) study were analyzed as a cohort. The Western Ontario and McMaster Universities Osteoarthritis Index was used to assess knee symptoms at baseline and follow-up. Osteophytes, cartilage defects, and cartilage volumes were measured using magnetic resonance imaging at baseline. Associations between cartilage morphology and changes in knee symptoms were assessed using linear regression models, and mediation analysis was used to test whether these associations were mediated by osteophytes. Results A total of 334 participants (aged 50 to 79 years) with symptomatic knee osteoarthritis were included in the analysis. Cartilage defects were significantly associated with change in total knee pain, change in weight-bearing pain, and change in non-weight-bearing pain after adjustment for age, sex, body mass index, and intervention. Cartilage volume was significantly associated with change in weight-bearing pain and change in physical dysfunction after adjustment. Lateral tibiofemoral and patellar osteophyte mediated the associations of cartilage defects with change in total knee pain (49–55%) and change in weight-bearing pain (61–62%) and the association of cartilage volume with change in weight-bearing pain (27–30%) and dysfunction (24–25%). Both cartilage defects and cartilage volume had no direct effects on change in knee symptoms. Conclusions The significant associations between cartilage morphology and changes in knee symptoms were indirect and were partly mediated by osteophytes. Supplementary Information The online version contains supplementary material available at 10.1186/s13075-022-02905-8.
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Affiliation(s)
- Tianxiang Fan
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Shibo Chen
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Muhui Zeng
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Jia Li
- Division of Orthopaedic Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaoshuai Wang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Guangfeng Ruan
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Peihua Cao
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yan Zhang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Tianyu Chen
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qianhua Ou
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Qianyi Wang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Anita E Wluka
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Flavia Cicuttini
- Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Changhai Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China. .,Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Victoria, Australia. .,Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania, Australia. .,Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
| | - Zhaohua Zhu
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China. .,Department of Orthopaedics, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China.
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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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Li D, Ruan G, Zhang Y, Zhao Y, Zhu Z, Ou Q, Huang H, Chen J, Han W, Tang S, Li J, Wang L, Chen T, Bai X, Cai D, Ding C. Metformin attenuates osteoarthritis by targeting chondrocytes, synovial macrophages and adipocytes. Rheumatology (Oxford) 2022; 62:1652-1661. [PMID: 35984286 DOI: 10.1093/rheumatology/keac467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 08/08/2022] [Accepted: 08/08/2022] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE To investigate the therapeutic effect and mechanism of metformin on knee osteoarthritis (OA) in normal diet (ND) mice or high-fat diet (HFD)-induced obese mice. METHODS Destabilization of the medial meniscus surgery was performed in ND mice or HFD mice, and metformin was administrated in drinking water or not. The changes of OA joint structure, infiltration and polarization of synovial macrophages and circulating and local levels of leptin and adiponectin were evaluated. In vitro, the effects of metformin on chondrocytes and macrophages, and of conditioned mediums derived from mouse abdominal fat on murine chondrogenic cell line ATDC5 and murine macrophage cell line RAW264.7, were detected. RESULTS Metformin showed protective effects on OA, characterized by reductions on OARSI score (2.00, 95% CI [1.15-2.86] for ND mice and 3.17, 95% CI [2.37-3.96] for HFD mice) and synovitis score (1.17, 95% CI [0.27-2.06] for ND mice and 2.50, 95% CI [1.49-3.51] for HFD mice) after 10 weeks of treatment, and the effects were more significant in HFD mice than in ND mice. Mechanistically, in addition to decreasing apoptosis and matrix-degrading enzymes expression in chondrocytes as well as infiltration and pro-inflammatory differentiation of synovial macrophages, metformin reduced leptin secretion by adipose tissue in HFD mice. CONCLUSIONS Metformin protects against knee OA which could be through reducing apoptosis and catabolism of chondrocytes, and suppressing infiltration and pro-inflammatory polarization of synovial macrophages. For obese mice, metformin has a greater protective effect in knee OA additionally through reducing leptin secretion from adipose tissue.
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Affiliation(s)
- Delong Li
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.,Department of Orthopedics, Academy of Orthopedics Guangdong Province, Orthopedic Hospital of Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China
| | - Guangfeng Ruan
- Clinical Research Centre, Guangzhou First People's Hospital, Guangzhou, 510180, China
| | - Yan Zhang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Yang Zhao
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Zhaohua Zhu
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Qianhua Ou
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Hong Huang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Jieli Chen
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Weiyu Han
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Su'an Tang
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Jia Li
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
| | - Liang Wang
- Department of Orthopedics, Academy of Orthopedics Guangdong Province, Orthopedic Hospital of Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China
| | - Tianyu Chen
- Department of Orthopedics, Academy of Orthopedics Guangdong Province, Orthopedic Hospital of Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China
| | - Xiaochun Bai
- Department of Orthopedics, Academy of Orthopedics Guangdong Province, Orthopedic Hospital of Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China.,Key Laboratory of Mental Health of the Ministry of Education, Department of Cell Biology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Daozhang Cai
- Department of Orthopedics, Academy of Orthopedics Guangdong Province, Orthopedic Hospital of Guangdong Province, Guangdong Provincial Key Laboratory of Bone and Joint Degenerative Diseases, The Third Affiliated Hospital of Southern Medical University, Guangzhou, 510630, China
| | - Changhai Ding
- Clinical Research Centre, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.,Menzies Institute for Medical Research, University of Tasmania, Hobart, 7000, Australia
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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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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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Ning W, Acharya A, Sun Z, Ogbuehi AC, Li C, Hua S, Ou Q, Zeng M, Liu X, Deng Y, Haak R, Ziebolz D, Schmalz G, Pelekos G, Wang Y, Hu X. Deep Learning Reveals Key Immunosuppression Genes and Distinct Immunotypes in Periodontitis. Front Genet 2021; 12:648329. [PMID: 33777111 PMCID: PMC7994531 DOI: 10.3389/fgene.2021.648329] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 02/18/2021] [Indexed: 02/02/2023] Open
Abstract
Background Periodontitis is a chronic immuno-inflammatory disease characterized by inflammatory destruction of tooth-supporting tissues. Its pathogenesis involves a dysregulated local host immune response that is ineffective in combating microbial challenges. An integrated investigation of genes involved in mediating immune response suppression in periodontitis, based on multiple studies, can reveal genes pivotal to periodontitis pathogenesis. Here, we aimed to apply a deep learning (DL)-based autoencoder (AE) for predicting immunosuppression genes involved in periodontitis by integrating multiples omics datasets. Methods Two periodontitis-related GEO transcriptomic datasets (GSE16134 and GSE10334) and immunosuppression genes identified from DisGeNET and HisgAtlas were included. Immunosuppression genes related to periodontitis in GSE16134 were used as input to build an AE, to identify the top disease-representative immunosuppression gene features. Using K-means clustering and ANOVA, immune subtype labels were assigned to disease samples and a support vector machine (SVM) classifier was constructed. This classifier was applied to a validation set (Immunosuppression genes related to periodontitis in GSE10334) for predicting sample labels, evaluating the accuracy of the AE. In addition, differentially expressed genes (DEGs), signaling pathways, and transcription factors (TFs) involved in immunosuppression and periodontitis were determined with an array of bioinformatics analysis. Shared DEGs common to DEGs differentiating periodontitis from controls and those differentiating the immune subtypes were considered as the key immunosuppression genes in periodontitis. Results We produced representative molecular features and identified two immune subtypes in periodontitis using an AE. Two subtypes were also predicted in the validation set with the SVM classifier. Three “master” immunosuppression genes, PECAM1, FCGR3A, and FOS were identified as candidates pivotal to immunosuppressive mechanisms in periodontitis. Six transcription factors, NFKB1, FOS, JUN, HIF1A, STAT5B, and STAT4, were identified as central to the TFs-DEGs interaction network. The two immune subtypes were distinct in terms of their regulating pathways. Conclusion This study applied a DL-based AE for the first time to identify immune subtypes of periodontitis and pivotal immunosuppression genes that discriminated periodontitis from the healthy. Key signaling pathways and TF-target DEGs that putatively mediate immune suppression in periodontitis were identified. PECAM1, FCGR3A, and FOS emerged as high-value biomarkers and candidate therapeutic targets for periodontitis.
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Affiliation(s)
- Wanchen Ning
- Department of Conservative Dentistry and Periodontology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Aneesha Acharya
- Dr. D. Y. Patil Dental College and Hospital, Dr. D. Y. Patil Vidyapeeth, Pune, India.,Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Zhengyang Sun
- Faculty of Mechanical Engineering, Chemnitz University of Technology, Chemnitz, Germany
| | | | - Cong Li
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Shiting Hua
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Qianhua Ou
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Muhui Zeng
- Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xiangqiong Liu
- Laboratory of Cell and Molecular Biology, Beijing Tibetan Hospital, China Tibetology Research Center, Beijing, China
| | - Yupei Deng
- Laboratory of Cell and Molecular Biology, Beijing Tibetan Hospital, China Tibetology Research Center, Beijing, China
| | - Rainer Haak
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Leipzig, Germany
| | - Dirk Ziebolz
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Leipzig, Germany
| | - Gerhard Schmalz
- Department of Cariology, Endodontology and Periodontology, University of Leipzig, Leipzig, Germany
| | - George Pelekos
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Yang Wang
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, School of Life Sciences, Hubei University, Wuhan, China
| | - Xianda Hu
- Laboratory of Cell and Molecular Biology, Beijing Tibetan Hospital, China Tibetology Research Center, Beijing, 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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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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22
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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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23
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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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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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26
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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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27
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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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28
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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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29
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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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Sun W, Ou Q, Zhang Z, Qu J, Huang Y. Chinese acute ischemic stroke treatment outcome registry (CASTOR): protocol for a prospective registry study on patterns of real-world treatment of acute ischemic stroke in China. Altern Ther Health Med 2017; 17:357. [PMID: 28683732 PMCID: PMC5501552 DOI: 10.1186/s12906-017-1863-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2016] [Accepted: 06/28/2017] [Indexed: 01/02/2023]
Abstract
Rationale Stroke presents a serious health problem in China. Despite progresses made in recent years, there is still a lack of effective treatments for acute ischemic stroke (AIS) in clinical practices. Aims The Chinese Acute Ischemic Stroke Treatment Outcome Registry (CASTOR) is designed to evaluate the patterns and cost-effectiveness of current treatments for AIS in real-world settings in China. Design CASTOR is a prospective, multi-center study registered with ClinicalTrials.gov (NCT02470624) with a target sample size of 10,000 patients who are experiencing AIS. The patients are treated for AIS following the Chinese stroke guideline and local practice. Real-world data on treatment regimens, outcomes and costs are collected at baseline (Visit 1) and during subsequent visits (Visit 2 to Visit 5) after medication treatments. Outcome The primary objective of the present study is to analyze the current treatment status of AIS in real world settings. The secondary objectives include: 1) to compare the effectiveness of common treatment regimens, 2) to analyze the cost-effectiveness of different treatment regimens for AIS, 3) to analyze the incidence of adverse events and complications in enrolled patients with AIS, 4) to analyze the effect of Trial of Org 10,172 in Acute Stroke Treatment (TOAST) classification on the specific therapies during acute phase treatment period. Discussion In face of changing treatment patterns and increasing demand from medical insurers for cost-effectiveness data in China, a large-scale registry study examining the real-world patterns of AIS in hospitals is needed. The CASTOR study will help to find favorable cost-utility treatment regimens for AIS and improve the overall treatment outcome of Chinese patients with AIS. Electronic supplementary material The online version of this article (doi:10.1186/s12906-017-1863-4) contains supplementary material, which is available to authorized users.
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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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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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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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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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