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Fei YY, Liu YY, Dong LL, Xiang Y, Zhang W, Zhao Y. [Recommendations for the diagnosis and treatment of IgG 4-related disease in China]. Zhonghua Nei Ke Za Zhi 2023; 62:1161-1171. [PMID: 37766434 DOI: 10.3760/cma.j.cn112138-20221105-00830] [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: 09/29/2023]
Abstract
IgG4-related disease (IgG4-RD) is an immune-mediated fibroinflammatory condition characterized by tumefactive lesions in multi-organs. It is a novel entity presented by variable manifestations. In recent years, there has been progress toward recognizing IgG4-RD. However, the diagnosis and treatment of IgG4-RD still present challenges due to insufficient experience. To address this, the Chinese Rheumatology Association has developed standardized guidelines for the diagnosis and treatment of IgG4-RD based on domestic and international experience. These guidelines aim to enhance the understanding and management of IgG4-RD, ultimately improving the prognosis for patients with IgG4-RD.
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Affiliation(s)
- Y Y Fei
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education,Beijing 100730, China
| | - Y Y Liu
- Department of Rheumatology and Immunology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China
| | - L L Dong
- Department of Rheumatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Xiang
- Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Diseases, Minda Hospital of Hubei Minzu University, Hubei Province, Enshi 445000, China
| | - W Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education,Beijing 100730, China
| | - Y Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, National Clinical Research Center for Dermatologic and Immunologic Diseases, Ministry of Science & Technology,State Key Laboratory of Complex Severe and Rare Diseases, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education,Beijing 100730, China
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Liu FY, Ji Q, Wang YL, Chen JM, Dong LL, Ding WJ, Lai H, Wang CS. [Surgical treatment for obstructive hypertrophic cardiomyopathy: a five-year single-center experience of 421 cases]. Zhonghua Wai Ke Za Zhi 2023; 61:201-208. [PMID: 36650965 DOI: 10.3760/cma.j.cn112139-20221129-00505] [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: 01/19/2023]
Abstract
Objectives: To examine the short-term and mid-term effects of surgical treatment of obstructive hypertrophic cardiomyopathy (HCM) in one center. Methods: The perioperative data and short-term follow-up outcomes of 421 patients with obstructive HCM who received surgical treatment at Department of Cardiac Surgery, Zhongshan Hospital, Fudan University from January 2017 to December 2021 were analyzed retrospectively. There were 207 males and 214 females, aged (56.5±11.7) years (range: 19 to 78 years). Preoperative New York Heart Association (NYHA) classification included 45 cases of class Ⅱ, 328 cases in class Ⅲ, and 48 cases in class Ⅳ. Fifty-eight patients were diagnosed with latent obstructive HCM and 257 patients had moderate or more mitral regurgitation with 56 patients suffering from intrinsic mitral valve diseases. All procedures were completed by a multidisciplinary team, including professional echocardiologists involving in preoperative planning for proper mitral valve management strategies and intraoperative monitoring. A total of 338 patients underwent septal myectomy alone, and 59 patients underwent mitral valve surgery along with myectomy. A single transaortic approach was used in 355 patients, and a right atrial-atrial septal/atrial sulcus approach was used in 51 other patients. Long-handled minimally invasive surgical instruments were used for the procedures. Student t test, Wilcoxon rank sum test, χ2 test or Fisher exact test were used to compare the data before and after surgery. Results: The aortic cross-clamping time of septal myectomy alone was (34.3±8.5) minutes (range: 21 to 94 minutes). Eighteen patients had intraoperative adverse events and underwent immediate reoperation, including residual obstruction (10 patients), left ventricular free wall rupture (4 patients), ventricular septal perforation (3 patients), and aortic valve perforation (1 patient). Four patients died during hospitalization, and 11 patients developed complete atrioventricular block requiring permanent pacemaker implantation. After discharge, 384 (92.1%) patients received a follow-up visit with a median duration of 9 months. All follow-up patients survived with significantly improved NYHA classifications: 216 patients in class Ⅰ and 168 patients in class Ⅱ (χ2=662.73, P<0.01 as compared to baseline). At 6 months after surgery, follow-up echocardiography showed that the thickness of the ventricular septum ((13.6±2.5) mm vs. (18.2±3.0) mm, t=23.51, P<0.01) and the peak left ventricular outflow tract gradient ((12.0±6.3) mmHg vs. (93.4±19.8) mmHg, 1 mmHg=0.133 kPa, t=78.29, P<0.01) were both significantly lower than baseline values. Conclusion: The construction of the surgical team (including echocardiography experts), proper mitral valve management strategies, identification and management of sub-mitral-valve abnormalities, and application of long-handled minimally invasive surgical instruments are important for the successful implementation of septal myectomy with satisfactory short-and medium-term outcomes.
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Affiliation(s)
- F Y Liu
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai Municipal Institute for Cardiovascular Diseases, Shanghai 200032, China
| | - Q Ji
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai Municipal Institute for Cardiovascular Diseases, Shanghai 200032, China
| | - Y L Wang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai Municipal Institute for Cardiovascular Diseases, Shanghai 200032, China
| | - J M Chen
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai Municipal Institute for Cardiovascular Diseases, Shanghai 200032, China
| | - L L Dong
- Department of Cardiac Ultrasound Diagnosis, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - W J Ding
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai Municipal Institute for Cardiovascular Diseases, Shanghai 200032, China
| | - H Lai
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai Municipal Institute for Cardiovascular Diseases, Shanghai 200032, China
| | - C S Wang
- Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai Municipal Institute for Cardiovascular Diseases, Shanghai 200032, China
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Gao F, Zhong HY, Chen KX, Dong LL, Lin MS, DU HL. [Mechanism of combined treatment of rhein and emodin in Rhubarb for ulcerative colitis]. Zhongguo Zhong Yao Za Zhi 2022; 47:4148-4155. [PMID: 36046905 DOI: 10.19540/j.cnki.cjcmm.20220509.702] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
This study aimed to explore the efficacy and mechanism of combined rhein and emodin in the treatment of ulcerative colitis(UC) from the aspects of network pharmacology, animal inflammation improvement and molecular mechanism. Network pharmacology predicted that combined rhein and emodin acted on 52 potential targets, mainly participating in signaling pathways such as cancer, PI3 K/AKT, microRNAs in cancer and apoptosis. PI3 K/AKT signaling pathway has been reported to be closely related to UC, and the optimal candidate pathway for combined therapy. The UC mice model was established by dextran sodium sulfate, and then the modeled mice were randomly divided into control group, model group, rhein group, emodin group, rhein+emodin group and sulfasalazine group. After administration, compared with the conditions in model group, body weight, disease activity index(DAI) score, colon length, TNF-α, IL-6, IL-1β and myeloperoxidase(MPO) of mice in rhein+emodin group were improved(P<0.01); colonic mucosal injury was significantly reduced; the expression of p-PI3 K/PI3 K and p-AKT/AKT proteins were down-regulated(P<0.01). All the above indices were better than those in the rhein/emodin group alone. The Jin's Q-values of the effect of combined rhein and emodin on colon length, TNF-α, IL-6, IL-1β, MPO, p-PI3 K/PI3 K and p-AKT/AKT were all greater than 1.15, which indicated that there was obvious synergistic effect between rhein and emodin. In all, rhein and emodin have synergistic effect in the treatment of UC, and the mechanism may be related to the inhibition of PI3 K/AKT signaling pathway and the down-regulation of proinflammatory factors. They are the new components in the treatment of UC, which is worthy of attention.
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Affiliation(s)
- Fei Gao
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy,Chengdu University of Traditional Chinese Medicine Chengdu 611137, China School of Medicine and Food, Sichuan Vocational College of Health and Rehabilitation Zigong 643000, China
| | - Hui-Yun Zhong
- School of Medicine and Food, Sichuan Vocational College of Health and Rehabilitation Zigong 643000, China
| | - Ke-Xi Chen
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy,Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Ling-Ling Dong
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy,Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Mei-Si Lin
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy,Chengdu University of Traditional Chinese Medicine Chengdu 611137, China
| | - Hong-Ling DU
- Department of Clinical Pharmacy,West China Hospital,Sichuan University Chengdu 610041,China
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Liu CY, Wei JJ, Huang XY, Dong LL, Li J, Wang J, Lei D, Mao CH, Hou B, Feng F, Cui LY, Gao J. [Relationship between white matter lesions and theresponse of cerebral spinal fluid tap test and clinical features in the patients with idiopathic normal pressure hydrocephalus]. Zhonghua Yi Xue Za Zhi 2022; 102:774-780. [PMID: 35325956 DOI: 10.3760/cma.j.cn112137-20210723-01649] [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: 06/14/2023]
Abstract
Objective: To explore the relationship between white matter lesions and clinical features and response of cerebral spinal fluid (CSF) tap test in patients with idiopathic normal pressure hydrocephalus(iNPH). Methods: Possible iNPH patients were enrolled from outpatients and inpatients in Peking Union Medical College Hospital between 2014 and 2019. All patients underwent detailed neuropsychological and walking assessments, CSF tap test, as well as head magnetic resonance imaging. The Fazekas score of white matter lesions, the fractional anisotropy (FA)and mean diffusivity (MD) values of regions of interest by means ofdiffusion tensor imaging (DTI) were compared between CSF tap test positive and negative response groups. The correlation between DTI parameters and clinical characteristics was analyzed. Results: Forty-three patients (29 male and 14 female, age range: 52-79 years] wererecruited.Compared with the negative group, patients in the positive group tended to have higher Fazekas score of periventricular white matter(U=108.00, P=0.03), higher MD value of the region near anterior horn of left lateral ventricles[(1.14±0.27)×10-9mm2/s vs (0.85±0.08) ×10-9mm2/s, P=0.003], lower FA value of the region near anterior horn of the right lateral ventricles[(0.20±0.07)vs(0.27±0.09), P=0.058], and higher MD value near the posterior horn of right lateral ventricle [(1.17±0.34)×10-9mm2/s vs (0.95±0.01)×10-9mm2/s, P=0.003]. FA and MD were significantly correlated with motor function, cognitive and functional scores, and iNPH grading scale (iNPHGS) scores(all P<0.05). Conclusions: The white matter lesions might be one of the pathogeneses of lNPH and apathological changewhich can be reversed by CSF drainage. More white matter lesions should not be the contraindication of CSF drainage surgery.
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Affiliation(s)
- C Y Liu
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J J Wei
- Department of Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Y Huang
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L L Dong
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Li
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Wang
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - D Lei
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - C H Mao
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - B Hou
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - F Feng
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Y Cui
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Gao
- Department of Neurology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Huang HQ, Li N, Li DY, Jing D, Liu ZY, Xu XC, Chen HP, Dong LL, Zhang M, Ying SM, Li W, Shen HH, Li ZY, Chen ZH. Corrigendum: Autophagy Promotes Cigarette Smoke-Initiated and Elastin-Driven Bronchitis-Like Airway Inflammation in Mice. Front Immunol 2021; 12:772939. [PMID: 34650573 PMCID: PMC8505269 DOI: 10.3389/fimmu.2021.772939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 11/17/2022] Open
Affiliation(s)
- Hua-Qiong Huang
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Na Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Dan-Yang Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Du Jing
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zheng-Yuan Liu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xu-Chen Xu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hai-Pin Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Ling-Ling Dong
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Min Zhang
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Song-Min Ying
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Wen Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hua-Hao Shen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
| | - Zhou-Yang Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zhi-Hua Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
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Huang HQ, Li N, Li DY, Jing D, Liu ZY, Xu XC, Chen HP, Dong LL, Zhang M, Ying SM, Li W, Shen HH, Li ZY, Chen ZH. Autophagy Promotes Cigarette Smoke-Initiated and Elastin-Driven Bronchitis-Like Airway Inflammation in Mice. Front Immunol 2021; 12:594330. [PMID: 33828547 PMCID: PMC8019710 DOI: 10.3389/fimmu.2021.594330] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 03/03/2021] [Indexed: 12/25/2022] Open
Abstract
Cigarette smoke (CS)-induced macrophage activation and airway epithelial injury are both critical for the development of chronic obstructive pulmonary disease (COPD), while the eventual functions of autophagy in these processes remain controversial. We have recently developed a novel COPD mouse model which is based on the autoimmune response sensitized by CS and facilitated by elastin. In the current study, we therefore utilized this model to investigate the roles of autophagy in different stages of the development of bronchitis-like airway inflammation. Autophagic markers were increased in airway epithelium and lung tissues, and Becn+/- or Lc3b-/- mice exhibited reduced neutrophilic airway inflammation and mucus hyperproduction in this COPD mouse model. Moreover, treatment of an autophagic inhibitor 3-methyladenine (3-MA) either during CS-initiated sensitization or during elastin provocation significantly inhibited the bronchitis-like phenotypes in mice. Short CS exposure rapidly induced expression of matrix metallopeptidase 12 (MMP12) in alveolar macrophages, and treatment of doxycycline, a pan metalloproteinase inhibitor, during CS exposure effectively attenuated the ensuing elastin-induced airway inflammation in mice. CS extract triggered MMP12 expression in cultured macrophages, which was attenuated by autophagy impairment (Becn+/- or Lc3b-/-) or inhibition (3-MA or Spautin-1). These data, taken together, demonstrate that autophagy mediates both the CS-initiated MMP12 activation in macrophages and subsequent airway epithelial injury, eventually contributing to development COPD-like airway inflammation. This study reemphasizes that inhibition of autophagy as a novel therapeutic strategy for CS-induced COPD.
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Affiliation(s)
- Hua-Qiong Huang
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Na Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Dan-Yang Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Du Jing
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zheng-Yuan Liu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xu-Chen Xu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hai-Pin Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Ling-Ling Dong
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Min Zhang
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Song-Min Ying
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Wen Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hua-Hao Shen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
- State Key Laboratory of Respiratory Disease, Guangzhou Medical University, Guangzhou, China
| | - Zhou-Yang Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zhi-Hua Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
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Li WJ, Zhao Y, Gao Y, Dong LL, Wu YF, Chen ZH, Shen HH. Lipid metabolism in asthma: Immune regulation and potential therapeutic target. Cell Immunol 2021; 364:104341. [PMID: 33798909 DOI: 10.1016/j.cellimm.2021.104341] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 03/03/2021] [Accepted: 03/05/2021] [Indexed: 12/12/2022]
Abstract
Asthma is a chronic inflammatory disease of the lungs that poses a considerable health and socioeconomic burden. Several risk factors work synergistically to affect the progression of asthma. Lipid metabolism, especially in distinct cells such as T cells, macrophages, granulocytes, and non-immune cells, plays an essential role in the pathogenesis of asthma, as lipids are potent signaling molecules that regulate a multitude of cellular response. In this review, we focused on the metabolic pathways of lipid molecules, especially fatty acids and their derivatives, and summarized their roles in various cells during the pathogenesis of asthma along with the current pharmacological agents targeting lipid metabolism.
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Affiliation(s)
- Wei-Jie Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yun Zhao
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yuan Gao
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, Ministry of Education), Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou, China
| | - Ling-Ling Dong
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yin-Fang Wu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zhi-Hua Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hua-Hao Shen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China; State Key Lab of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou, China.
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8
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Abstract
Autophagy is crucial for maintaining cellular homeostasis, and can be activated after ischemic stroke. It also participates in nerve injury and repair. The purpose of this study was to investigate whether an enriched environment has neuroprotective effects through affecting autophagy. A Sprague-Dawley rat model of transient ischemic stroke was prepared by occlusion of the middle cerebral artery followed by reperfusion. One week after surgery, these rats were raised in either a standard environment or an enriched environment for 4 successive weeks. The enriched environment increased Beclin-1 expression and the LC3-II/LC3-I ratio in the autophagy/lysosomal pathway in the penumbra of middle cerebral artery-occluded rats. Enriched environment-induced elevations in autophagic activity were mainly observed in neurons. Enriched environment treatment also promoted the fusion of autophagosomes with lysosomes, enhanced the lysosomal activities of lysosomal-associated membrane protein 1, cathepsin B, and cathepsin D, and reduced the expression of ubiquitin and p62. After 4 weeks of enriched environment treatment, neurological deficits and neuronal death caused by middle cerebral artery occlusion/reperfusion were significantly alleviated, and infarct volume was significantly reduced. These findings suggest that neuronal autophagy is likely the neuroprotective mechanism by which an enriched environment promotes recovery from ischemic stroke. This study was approved by the Animal Ethics Committee of the Kunming University of Science and Technology, China (approval No. 5301002013855) on March 1, 2019.
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Affiliation(s)
- Yi-Hao Deng
- Department of Basic Medicine, Medical School, Kunming University of Science and Technology, Kunming, Yunnan Province, China
| | - Ling-Ling Dong
- Department of Basic Medicine, Medical School, Kunming University of Science and Technology, Kunming, Yunnan Province, China
| | - Yong-Jie Zhang
- Department of Basic Medicine, Medical School, Kunming University of Science and Technology, Kunming, Yunnan Province, China
| | - Xiao-Ming Zhao
- Department of Basic Medicine, Medical School, Kunming University of Science and Technology, Kunming, Yunnan Province, China
| | - Hong-Yun He
- Department of Basic Medicine, Medical School, Kunming University of Science and Technology, Kunming, Yunnan Province, China
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Zhou JS, Li ZY, Xu XC, Zhao Y, Wang Y, Chen HP, Zhang M, Wu YF, Lai TW, Di CH, Dong LL, Liu J, Xuan NX, Zhu C, Wu YP, Huang HQ, Yan FG, Hua W, Wang Y, Xiong WN, Qiu H, Chen T, Weng D, Li HP, Zhou X, Wang L, Liu F, Lin X, Ying SM, Li W, Imamura M, Choi ME, Stampfli MR, Choi AMK, Chen ZH, Shen HH. Cigarette smoke-initiated autoimmunity facilitates sensitisation to elastin-induced COPD-like pathologies in mice. Eur Respir J 2020; 56:13993003.00404-2020. [PMID: 32366484 DOI: 10.1183/13993003.00404-2020] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 04/10/2020] [Indexed: 12/11/2022]
Abstract
It is currently not understood whether cigarette smoke exposure facilitates sensitisation to self-antigens and whether ensuing auto-reactive T cells drive chronic obstructive pulmonary disease (COPD)-associated pathologies.To address this question, mice were exposed to cigarette smoke for 2 weeks. Following a 2-week period of rest, mice were challenged intratracheally with elastin for 3 days or 1 month. Rag1-/- , Mmp12-/- , and Il17a-/- mice and neutralising antibodies against active elastin fragments were used for mechanistic investigations. Human GVAPGVGVAPGV/HLA-A*02:01 tetramer was synthesised to assess the presence of elastin-specific T cells in patients with COPD.We observed that 2 weeks of cigarette smoke exposure induced an elastin-specific T cell response that led to neutrophilic airway inflammation and mucus hyperproduction following elastin recall challenge. Repeated elastin challenge for 1 month resulted in airway remodelling, lung function decline and airspace enlargement. Elastin-specific T cell recall responses were dose dependent and memory lasted for over 6 months. Adoptive T cell transfer and studies in T cells deficient Rag1-/- mice conclusively implicated T cells in these processes. Mechanistically, cigarette smoke exposure-induced elastin-specific T cell responses were matrix metalloproteinase (MMP)12-dependent, while the ensuing immune inflammatory processes were interleukin 17A-driven. Anti-elastin antibodies and T cells specific for elastin peptides were increased in patients with COPD.These data demonstrate that MMP12-generated elastin fragments serve as a self-antigen and drive the cigarette smoke-induced autoimmune processes in mice that result in a bronchitis-like phenotype and airspace enlargement. The study provides proof of concept of cigarette smoke-induced autoimmune processes and may serve as a novel mouse model of COPD.
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Affiliation(s)
- Jie-Sen Zhou
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,These authors contribute equally to this work
| | - Zhou-Yang Li
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,These authors contribute equally to this work
| | - Xu-Chen Xu
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yun Zhao
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yong Wang
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hai-Pin Chen
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Min Zhang
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yin-Fang Wu
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Tian-Wen Lai
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chun-Hong Di
- Dept of Clinical Laboratory, the Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Ling-Ling Dong
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Juan Liu
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Nan-Xia Xuan
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chen Zhu
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan-Ping Wu
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hua-Qiong Huang
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Fu-Gui Yan
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wen Hua
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yi Wang
- Dept of Respiratory and Critical Care Medicine, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Wei-Ning Xiong
- Dept of Respiratory and Critical Care Medicine, Key Laboratory of Pulmonary Diseases of Health Ministry, Tongji Hospital, Tongji Medical College, Huazhong University of Sciences and Technology, Wuhan, China
| | - Hui Qiu
- Dept of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Tao Chen
- Dept of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Dong Weng
- Dept of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hui-Ping Li
- Dept of Respiratory Medicine, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaobo Zhou
- Channing Laboratory, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Lie Wang
- Institute of Immunology, Zhejiang University School of Medicine, Hangzhou, China
| | - Fang Liu
- Institute for Immunology, Tsinghua University School of Medicine, Tsinghua University-Peking University Jointed Center for Life Sciences, Beijing, China
| | - Xin Lin
- Institute for Immunology, Tsinghua University School of Medicine, Tsinghua University-Peking University Jointed Center for Life Sciences, Beijing, China
| | - Song-Min Ying
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wen Li
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Mitsuru Imamura
- Division of Pulmonary and Critical Care Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Mary E Choi
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Dept of Medicine, New York-Presbyterian Hospital, Weill Cornell Medical College, New York, NY, USA
| | - Martin R Stampfli
- Dept of Pathology and Molecular Medicine, McMaster Immunology Research Centre, and Dept of Medicine, Firestone Institute for Respiratory Health at St Joseph's Healthcare, McMaster University, Hamilton, ON, Canada.,State Key Lab of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Augustine M K Choi
- Division of Pulmonary and Critical Care Medicine, Weill Cornell Medical College, New York, NY, USA.,These authors contribute equally to this work
| | - Zhi-Hua Chen
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,These authors contribute equally to this work
| | - Hua-Hao Shen
- Key Lab of Respiratory Disease of Zhejiang Province, Dept of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China .,State Key Lab of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou, China.,These authors contribute equally to this work
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10
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Wu YF, Li ZY, Dong LL, Li WJ, Wu YP, Wang J, Chen HP, Liu HW, Li M, Jin CL, Huang HQ, Ying SM, Li W, Shen HH, Chen ZH. Inactivation of MTOR promotes autophagy-mediated epithelial injury in particulate matter-induced airway inflammation. Autophagy 2020; 16:435-450. [PMID: 31203721 PMCID: PMC6999647 DOI: 10.1080/15548627.2019.1628536] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 05/21/2019] [Accepted: 05/30/2019] [Indexed: 12/21/2022] Open
Abstract
Particulate matter (PM) is able to induce airway epithelial injury, while the detailed mechanisms remain unclear. Here we demonstrated that PM exposure inactivated MTOR (mechanistic target of rapamycin kinase), enhanced macroautophagy/autophagy, and impaired lysosomal activity in HBE (human bronchial epithelial) cells and in mouse airway epithelium. Genetic or pharmaceutical inhibition of MTOR significantly enhanced, while inhibition of autophagy attenuated, PM-induced IL6 expression in HBE cells. Consistently, club-cell-specific deletion of Mtor aggravated, whereas loss of Atg5 in bronchial epithelium reduced, PM-induced airway inflammation. Interestingly, the augmented inflammatory responses caused by MTOR deficiency were markedly attenuated by blockage of downstream autophagy both in vitro and in vivo. Mechanistically, the dysregulation of MTOR-autophagy signaling was partially dependent on activation of upstream TSC2, and interacted with the TLR4-MYD88 to orchestrate the downstream NFKB activity and to regulate the production of inflammatory cytokines in airway epithelium. Moreover, inhibition of autophagy reduced the expression of EPS15 and the subsequent endocytosis of PM. Taken together, the present study provides a mechanistic explanation for how airway epithelium localized MTOR-autophagy axis regulates PM-induced airway injury, suggesting that activation of MTOR and/or suppression of autophagy in local airway might be effective therapeutic strategies for PM-related airway disorders.Abbreviations: ACTB: actin beta; AKT: AKT serine/threonine kinase; ALI: air liquid interface; AP2: adaptor related protein complex 2; ATG: autophagy related; BALF: bronchoalveolar lavage fluid; COPD: chronic obstructive pulmonary disease; CXCL: C-X-C motif chemokine ligand; DOX: doxycycline; EGF: epidermal growth factor; EGFR: epidermal growth factor receptor; EPS15: epidermal growth factor receptor pathway substrate 15; HBE: human bronchial epithelial; H&E: hematoxylin & eosin; IKK: IKB kinase; IL: interleukin; LAMP2: lysosomal-associated membrane protein 2; LPS: lipopolysaccharide; MAP1LC3B/LC3B: microtubule-associated protein 1 light chain 3 beta; MTEC: mouse tracheal epithelial cells; MTOR: mechanistic target of rapamycin kinase; MYD88: MYD88 innate immune signal transduction adaptor; NFKB: nuclear factor of kappa B; NFKBIA: NFKB inhibitor alpha; PM: particulate matter; PtdIns3K: phosphatidylinositol 3-kinase; Rapa: rapamycin; RELA: RELA proto-oncogene, NFKB subunit; SCGB1A1: secretoglobin family 1A member 1; siRNA: small interfering RNAs; SQSTM1: sequestosome 1; TEM: transmission electronic microscopy; TLR4: toll like receptor 4; TSC2: TSC complex subunit 2.
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Affiliation(s)
- Yin-Fang Wu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhou-Yang Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ling-Ling Dong
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wei-Jie Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yan-Ping Wu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jing Wang
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hai-Pin Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hui-Wen Liu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Miao Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ci-Liang Jin
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hua-Qiong Huang
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Song-Min Ying
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wen Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hua-Hao Shen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- State Key Lab of Respiratory Disease, Key cite of National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Zhi-Hua Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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11
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Dong LL, Ding YC, Huo WT, Zhang W, Lu JW, Jin LH, Zhao YQ, Wu GH, Zhang YS. A green and facile synthesis for rGO/Ag nanocomposites using one-step chemical co-reduction route at ambient temperature and combined first principles theoretical analyze. Ultrason Sonochem 2019; 53:152-163. [PMID: 30755391 DOI: 10.1016/j.ultsonch.2019.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 01/02/2019] [Indexed: 05/24/2023]
Abstract
Recently, graphene decorated with various inorganic nanoparticles, such as Pt, Au, Ag, TiO2 and Fe3O4, among which Ag nanocomposites are good candidates for electronics, optics, electrochemistry and catalysis. However, preparation techniques for Ag nanoparticles/carbon matrix hybrids require tedious multi-step processes often involving toxic reducing agents/high temperatures which is not viable for scalable production. Here, a facile, one step and eco-friendly chemical co-reduction route was utilized to synthesis of a new nanocomposites by Ag nanoparticle anchored on reduced graphene oxide (rGO) at ambient temperature and combined first principles theoretical analyze their interfacial adsorption behavior, is reported. In this way, graphene oxide (GO) and Ag+ simultaneously reduced by thiourea dioxide (TD) without using any additional reduced reactants. Results indicated that GO was successfully reduced to rGO and well-dispersed Ag nanoparticles with sizes of 6-7 nm, anchored on the surface of rGO sheets. Reduction mechanism was attributed to the synergistic effect of its hydrolysis products in aqueous media. The experiment and theoretical calculation results obtained demonstrate this method to be applicable to the synthesis of other metals on rGO sheets in order to improve wettability and interfacial bonding between rGO and metal and may possibly find various forthcoming medicinal, industrial and technological applications.
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Affiliation(s)
- L L Dong
- Advanced Materials Research Central, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, PR China
| | - Y C Ding
- College of Optoelectronics Technology, Chengdu University of Information Technology, Chengdu 610225, PR China
| | - W T Huo
- Advanced Materials Research Central, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, PR China
| | - W Zhang
- Advanced Materials Research Central, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, PR China
| | - J W Lu
- Advanced Materials Research Central, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, PR China
| | - L H Jin
- Advanced Materials Research Central, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, PR China
| | - Y Q Zhao
- Advanced Materials Research Central, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, PR China
| | - G H Wu
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, PR China
| | - Y S Zhang
- Xi'an Rare Metal Materials Institute Co., Ltd, Xi'an, PR China; Advanced Materials Research Central, Northwest Institute for Nonferrous Metal Research, Xi'an 710016, PR China.
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12
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Wang SQ, Jiang GL, Wei GM, Huo FM, Dong LL, Zhao LP, Huang HR, Wang GR. [Antimicrobial susceptibility and genotyping of Mycobacterium intracellulare]. Zhonghua Jie He He Hu Xi Za Zhi 2018; 41:539-543. [PMID: 29996350 DOI: 10.3760/cma.j.issn.1001-0939.2018.07.007] [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: To investigate the antimicrobial susceptibility and genotyping of Mycobacterium intracellulare. Methods: A total of 150 M. intracellulare isolates were collected. The susceptibility against 15 antimicrobial agents widely used for treatment of non-tuberculosis mycobacteria (NTM) infections, was tested by broth microdilution assay. Variable number of tandem repeats (VNTR) assay was also performed using the 16-loci genotyping method. Results: The drug susceptibility test revealed that clarithromycin (97.3%, 146/150), moxifloxacin (94.0%, 141/150) and amikacin (90.0%, 135/150) had the best antimicrobial activities in vitro against the M. intracellulare isolates. Secondly, 75.3%(113/150), 64.0%(96/150), 52.7%(79/150) and 8.7%(13/150) of the strains were susceptible to rifampicin, linezolid, capreomycin, and ethambutol, respectively. The MIC(50) and MIC(90) values of the 3 injectable anti-tuberculosis drugs were as follows: amikacin 4 mg/L and 16 mg/L, streptomycin 4 mg/L and 16 mg/L, capreomycin 8 mg/L and 16 mg/L. The MIC(50) and MIC(90) values of the 5 different fluoroquinolones were 0.5 mg/L and 2 mg/L for moxifloxacin , 1 mg/L and 8 mg/L for ciprofloxacin, 1 mg/L and 8ug/ml for levofloxacin, 2 mg/L and 16 mg/L for antoflolxacin, 2 mg/L and 16 mg/L for ofloxacin. The Hunter-Gaston Discriminatory Index (HGDI) value for the 16-loci VNTR typing of M. intracellulare isolates was 0.994. VNTR differentiated the 150 isolates into 21 clusters and acquired a total of 121 unique patterns. Drug resistance profile was not independently associated with cluster strains. Conclusions: Clarithromycin, moxifloxacin and amikacin had the best antimicrobial activities in vitro against M. intracellulare isolates. The 16-loci VNTR typing revealed a highly discriminatory power and drug resistance profile was not independently associated with cluster strains.
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Affiliation(s)
- S Q Wang
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug Resistant Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing 101149, China
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13
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Yu L, Wang RL, Bai S, Zhang SZ, Dong LL, Gui B, Yang H, Shen J, Wan XY. [Drug Knowledge of Middle School Students in HIV-prone Areas of Liangshan]. Sichuan Da Xue Xue Bao Yi Xue Ban 2018; 49:463-468. [PMID: 30014652] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To investigate drug knowledge of middle school students in HIV prone areas in Liangshan of Sichuan Province. METHODS Students were randomly selected from the middle schools located in the HIV prone areas in Liangshan. A questionnaire survey was conducted. Drug knowledge of the respondents and associated factors were analyzed. RESULTS Of the 10 749 respondents,10.1% had wrong knowledge about drugs. The respondents of male gender and minority ethnicity in the region and those who were in a lower grade,had poor academic records,more sisters,and a schoolmate taking drugs,and lived in a family with HIV infected member were more likely to had poor drug knowledge. By contrast,the respondents who had a peasant father,lived with both parents,resided in a city or township,self-rated in the middle and low 1/3 of wealth,lived in a community with >50% school attendance,and had a family member taking drugs were less likely to have wrong drug knowledge. CONCLUSION Middle school students in the HIV prone areas in Liangshan have poor drug knowledge. Socioeconomic factors influence the drug knowledge of students,which require systematic interventions.
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Affiliation(s)
- Lin Yu
- Editorial Board of Journal of Sichuan University (Medical Science Edition),Chengdu 610041,China
| | - Ren-Li Wang
- Scientific Research Office, West China School of Basic Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Shuang Bai
- The First People's Hospital of Yi Autonomous Prefecture of Liangshan,Xichang 615000,China
| | - Shi-Ze Zhang
- Scientific Research Office, West China School of Basic Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Ling-Ling Dong
- Scientific Research Office, West China School of Basic Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Bing Gui
- Scientific Research Office, West China School of Basic Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Hong Yang
- Scientific Research Office, West China School of Basic Sciences and Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Jin Shen
- Editorial Board of Journal of Sichuan University (Medical Science Edition),Chengdu 610041,China
| | - Xiao-Yan Wan
- The EditorialDepartment of Modern Preventive Medicine,West China School of Public Health,Sichuan University,Chengdu 610041,China
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14
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Yu L, Shen J, Wang RL, Zhang SZ, Dong LL, Gui B, Yang H. [Smoking in Middle School Students in Priority Areas for HIV Control in Liangshan]. Sichuan Da Xue Xue Bao Yi Xue Ban 2018; 49:299-303. [PMID: 29737078] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To determine the prevalence and determinants of smoking in middle school students in priority areas for HIV control in Liangshan of Sichuan Province. METHODS Students were randomly selected in all of the schools located in the priority areas for HIV control in Liangshan. A questionnaire survey was conducted,collecting data in relation to socio-demographic characteristics of the participants,their smoking behavior,drug abuse in family members,and HIV infections in family members. Risk factors associated with smoking were identified using univariate and multivariate statistical analyses. RESULTS About 21.3% of respondents were smoking at the time of survey; 33.4% attempted smoking; 5% were heavy smokers; and 16.8% started smoking before 13 years old. The Logistic regression analysis identified male gender,senior high school students,poor academic records,low household income,rural residency,family drug abuse and HIV infections as predictors of attempted smoking. Male gender,minority ethnicity,average academic records,broken family,medium and high household income,family drug abuse and HIV infections were identified as predictors of smoking. Male gender,senior high school students,low or medium academic records,rural residency,and family drug abuse were identified as predictors of heavy smoking. Male gender,broken family,average academic records,medium or high household income,family drug abuse and HIV infections were associated with smoking before thirteen. CONCLUSION Smoking rate in middle school students in the priority areas for HIV control in Liangshan is high. They start smoking at a young age. School smoking control programs should place priorities on those who are in the groups of boys,minority ethnicity,senior high school students,rural residency,poor academic records,and those with family drug abuse and HIV infections.
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Affiliation(s)
- Lin Yu
- Editorial Board of Journal of Sichuan University (Medical Science Edition),Chengdu 610041,China
| | - Jin Shen
- Editorial Board of Journal of Sichuan University (Medical Science Edition),Chengdu 610041,China
| | - Ren-Li Wang
- The First People's Hospital of Yi Autonomous Prefecture of Liangshan,Xichang 615000,China
| | - Shi-Ze Zhang
- The First People's Hospital of Yi Autonomous Prefecture of Liangshan,Xichang 615000,China
| | - Ling-Ling Dong
- The First People's Hospital of Yi Autonomous Prefecture of Liangshan,Xichang 615000,China
| | - Bing Gui
- The First People's Hospital of Yi Autonomous Prefecture of Liangshan,Xichang 615000,China
| | - Hong Yang
- The First People's Hospital of Yi Autonomous Prefecture of Liangshan,Xichang 615000,China
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15
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Wang N, Wu N, Dong LL, Yan HK, Wu D. A study of the temporal robustness of the growing global container-shipping network. Sci Rep 2016; 6:34217. [PMID: 27713549 PMCID: PMC5054361 DOI: 10.1038/srep34217] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 09/06/2016] [Indexed: 11/15/2022] Open
Abstract
Whether they thrive as they grow must be determined for all constantly expanding networks. However, few studies have focused on this important network feature or the development of quantitative analytical methods. Given the formation and growth of the global container-shipping network, we proposed the concept of network temporal robustness and quantitative method. As an example, we collected container liner companies’ data at two time points (2004 and 2014) and built a shipping network with ports as nodes and routes as links. We thus obtained a quantitative value of the temporal robustness. The temporal robustness is a significant network property because, for the first time, we can clearly recognize that the shipping network has become more vulnerable to damage over the last decade: When the node failure scale reached 50% of the entire network, the temporal robustness was approximately −0.51% for random errors and −12.63% for intentional attacks. The proposed concept and analytical method described in this paper are significant for other network studies.
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Affiliation(s)
- Nuo Wang
- Department of Transportation Management, Dalian Maritime University, Dalian 116026, China
| | - Nuan Wu
- Department of Transportation Management, Dalian Maritime University, Dalian 116026, China
| | - Ling-Ling Dong
- Department of Transportation Management, Dalian Maritime University, Dalian 116026, China
| | - Hua-Kun Yan
- Sino-US Global Logistics Institute, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Di Wu
- Department of Transportation Management, Dalian Maritime University, Dalian 116026, China
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16
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Ma S, Xie F, Chen L, Wang YZ, Dong LL, Zhao KQ. Development of dual-wavelength fiber ring laser and its application to step-height measurement using self-mixing interferometry. Opt Express 2016; 24:5693-5698. [PMID: 27136766 DOI: 10.1364/oe.24.005693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A dual-wavelength erbium-doped fiber (EDF) ring laser was developed and its application to step-height measurement using two-wavelength self-mixing interferometry (SMI) was demonstrated. The fiber laser can emit two different wavelengths without any laser mode competition. It is composed of two EDF laser cavities and employs fiber Bragg gratings to determine which wavelengths are emitted. The step heights can be measured using SMI of the two wavelengths, and the maximum height that can be measured is half the synthetic wavelength of the two wavelengths. A step height of 1mm was constructed using two gauge blocks and then measured using the laser. The measurement was repeated ten times, and the standard deviation of the measurements was 2.4nm.
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17
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Chen ST, Zhao LP, Dong WJ, Gu YT, Li YX, Dong LL, Ma YF, Qin SB, Huang HR. The Clinical Features and Bacteriological Characterizations of Bone and Joint Tuberculosis in China. Sci Rep 2015; 5:11084. [PMID: 26053666 PMCID: PMC4459174 DOI: 10.1038/srep11084] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 05/13/2015] [Indexed: 02/04/2023] Open
Abstract
Bone and Joint tuberculosis (BJTB) constitutes about 10% of total extra-pulmonary TB cases. Since the BJTB is a paucibacillary condition, there has been no systematic study on the bacterial characterization, especially the epidemiological feature. Here we collected the mycobacterial clinical isolates, analyzed the clinical features and the bacteriological characteristics from 113 BJTB cases reported in China. The mean age of the cases was 40.33 years while most of the patients fell into the 20–29 year age group; local pain was the most common onset symptom of BJTB cases; mean time from symptom onset to BJTB diagnosis was 13.16 months. 31 isolates were defined as drug resistant, including 15 multidrug resistant (MDR) and 2 extensively drug resistant (XDR) isolates according to the drug susceptibility test outcomes; after spoligotyping, 87.6% (99/113) isolates were categorized as Beijing family. In contrast to the isolates from pulmonary tuberculosis patients, here the MIRU-VNTR assay did not find anything significant. A prolonged time span for BJTB diagnosis highlights the requirement of paying further attention to BJTB infection in China. This study provides essential insights into the demographic and microbial characteristics of BJTB cases in China.
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Affiliation(s)
- Su-Ting Chen
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Li-Ping Zhao
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Wei-Jie Dong
- Department of Orthopaedics, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing Chest Hospital, Capital Medical University, Beijing China 101149
| | - Yun-Ting Gu
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Yun-Xu Li
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Ling-Ling Dong
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Yi-Feng Ma
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
| | - Shi-Bing Qin
- Department of Orthopaedics, Beijing Tuberculosis and Thoracic Tumor Institute, Beijing Chest Hospital, Capital Medical University, Beijing China 101149
| | - Hai-Rong Huang
- National Clinical Laboratory on Tuberculosis, Beijing Key Laboratory for Drug-resistant Tuberculosis Research
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Shi H, Wang LL, Sun LT, Dong LL, Liu B, Chen LP. Cell division and endoreduplication play important roles in stem swelling of tuber mustard (Brassica juncea Coss. var. tumida Tsen et Lee). Plant Biol (Stuttg) 2012; 14:956-963. [PMID: 22639957 DOI: 10.1111/j.1438-8677.2012.00580.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We investigated spatio-temporal variations in cell division and the occurrence of endoreduplication in cells of tuber mustard stems during development. Cells in the stem had 8C nuclei (C represents DNA content of a two haploid genome), since it is an allotetraploid species derived from diploid Brassica rapa (AA) and B. nigra (BB), thus indicating the occurrence of endoreduplication. Additionally, we observed a dynamic change of cell ploidy in different regions of the swollen stems, with a decrease in 4C proportion in P4-1 and a sharp increase in 8C cells that became the dominant cell type (86.33% at most) in the inner pith cells. Furthermore, cDNAs of 14 cell cycle genes and four cell expansion genes were cloned and their spatial transcripts analysed in order to understand their roles in stem development. The expression of most cell cycle genes peaked in regions of the outer pith (P2 or P3), some genes regulating S/G2 and G2/M (BjCDKB1;2, BjCYCB1;1 and BjCYCB1;2) significantly decrease in P5 and P6, while G1/S regulators (BjE2Fa, BjE2Fb and BjE2Fc) showed a relative high expression level in the inner pith (P5) where cells were undergoing endoreduplication. Coincidentally, BjXTH1and BjXTH2 were exclusively expressed in the endoreduplicated cells. Our results suggest that cells of outer pith regions (P2 and P3) mainly divide for cell proliferation, while cells of the inner pith expand through endoreduplication. Endoreduplication could trigger expression of BjXTH1 and BjXTH2 and thus function in cell expansion of the pith tissue.
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Affiliation(s)
- H Shi
- Department of Horticulture, Zhejiang University, Hangzhou, China
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Song BW, Xie LJ, Dong LL, Tang Z, Feng H. N-[2-(2-Chlorophenyl)-2-hydroxyethyl]propan-2-aminium chloride. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o2187. [PMID: 21577591 PMCID: PMC2970127 DOI: 10.1107/s1600536809031146] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 08/01/2009] [Accepted: 08/06/2009] [Indexed: 11/10/2022]
Abstract
In the title compound, C11H17ClNO+·Cl−, the side chain of the ethylamine group is orientated approximately perpendicular to the benzene ring, the dihedral angle between the C/C/N plane of the ethylamine group and the benzene plane being 83.5 (3)°. In the crystal structure, intermolecular O—H⋯Cl and N—H⋯Cl hydrogen bonds are observed. The crystal studied was an inversion twin with a 0.51 (10):0.49 (10) domain ratio.
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Li XJ, Dong LL, Kong JJ. [Impact of volatile sulphur compounds in periodontal pockets on initial periodontal therapy]. Zhejiang Da Xue Xue Bao Yi Xue Ban 2008; 37:418-421. [PMID: 18705017 DOI: 10.3785/j.issn.1008-9292.2008.04.016] [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: 05/26/2023]
Abstract
OBJECTIVE To investigate the relationship of volatile sulphur compounds((VSC)levels in periodontal pockets with severity of periodontitis, and the impact of VSC on the result of initial periodontal therapy. METHODS Twenty-five patients with chronic periodontitis(CP)(13 males and 12 females with average age of 35) were included in this study. Clinical periodontal parameters, plaque index, probing depth(PD), attachment loss(AL), and bleeding on probing(BOP) were recorded before and 3 months after the initial therapy. VSC levels were measured with a portable monitor in a digital score ranging from 0.0 to 5.0. All of 5 054 sites for 840 teeth were included in this study. RESULT Before treatment the percentage of VSC-positive sites was 17.1%, 52.3% and 86.0% for shallow (PD<3 mm), moderate(PD 4-6 mm) and deep (PD>7 mm) pocket, respectively (P<0.001). In most VSC-positive sites the VSC levels were<1.0. Percentage of sites with a high VSC levels was significantly different among three groups (P<0.01). All clinical parameters in VSC-negative sites were reduced significantly following the initial therapy. The reduction of PD and AL in VSC-positive sites by treatment was less marked than that in VSC-negative sites. CONCLUSION VSC in periodontal pockets may be a potential indicator for detecting severity of CP and a useful predictor for therapeutic success.
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Affiliation(s)
- Xiao-Jun Li
- Department of Periodontology, The Affilliated Stomatological Hospital, College of Medicine, Zhejiang University, Hangzhou 310006, China
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