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Balshi A, Manning N, Dempsey J, Jun C, Baber U, Sloane JA. Clinical course of multiple sclerosis with comorbid endometriosis: A matched cohort study. Mult Scler Relat Disord 2024; 82:105377. [PMID: 38181694 DOI: 10.1016/j.msard.2023.105377] [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: 08/07/2023] [Revised: 10/20/2023] [Accepted: 12/10/2023] [Indexed: 01/07/2024]
Abstract
BACKGROUND Endometriosis (EMS) is pain syndrome in which endometrial tissue grows outside the uterus. EMS is associated with an increased risk of multiple sclerosis (MS), a demyelinating disease of the central nervous system. OBJECTIVE To characterize clinical phenotypes of a cohort of patients with both EMS and MS compared to a cohort of matched controls with only MS. METHODS We retrospectively identified patients with EMS and MS at Beth Israel Deaconess Medical Center (BIDMC). We collected data on EMS treatments and analyzed differences in histories of gynecological cancer, smoking, fatigue, anxiety, depression, headache, and neuropathic pain compared to matched controls. We used Wilcoxon signed rank tests for paired samples to compare Expanded Disability Status Scores (EDSS) and timed 25-foot walk values (T25FW). RESULTS Using a case-control methodology, we found significantly increased EDSS (p < 0.001) and T25FW (p = 0.01) in the EMS-MS group compared to the MS group. More patients in the EMS-MS group had histories of smoking, anxiety, depression, and headaches, while more patients in the MS group had histories of fatigue and neuropathic pain. CONCLUSION When controlling for age, race, and MS therapy, those with EMS-MS experience more MS disability than controls, suggesting this population requires more monitoring and efficacious treatment.
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Affiliation(s)
- Alexandra Balshi
- Department of Neurology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Nova Manning
- Department of Neurology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - John Dempsey
- Department of Neurology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Claire Jun
- Department of Neurology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Ursela Baber
- Department of Neurology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Jacob A Sloane
- Department of Neurology, Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, MA, USA.
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2
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Ho D, Lynd TO, Jun C, Shin J, Millican RC, Estep BK, Chen J, Zhang X, Brott BC, Kim DW, Sherwood JA, Hwang PTJ. MiR-146a encapsulated liposomes reduce vascular inflammatory responses through decrease of ICAM-1 expression, macrophage activation, and foam cell formation. Nanoscale 2023; 15:3461-3474. [PMID: 36723042 DOI: 10.1039/d2nr03280e] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Vascular insults can create an inflammatory cascade involving endothelial cell, smooth muscle cell, and macrophage activation which can eventually lead to vascular disease such as atherosclerosis. Several studies have identified microRNA 146a's (miR-146a) anti-inflammatory potential based on its role in regulating the nuclear factor kappa beta (NF-κβ) pathway. Therefore, in this study, we introduced exogenous miR-146a encapsulated by liposomes to lipopolysaccharide (LPS) stimulated vascular cells and macrophages to reduce inflammatory responses. First, the miR-146a encapsulated liposomes showed uniform size (radius 96.4 ± 4.22 nm) and round shape, long term stability (at least two months), high encapsulation efficiency (69.73 ± 0.07%), and were well transfected to human aortic endothelial cells (HAECs), human aortic smooth muscle cells (SMCs), and human differentiated monocytes (U937 cells). In addition, we demonstrated that miR-146a encapsulated liposomes reduced vascular inflammation responses in HAECs and SMCs through inhibition of ICAM-1 expression and decreased monocyte adhesion. In macrophages, miR-146a liposome treatment demonstrated decreased production of proinflammatory cytokines, tumor necrosis factor-alpha (TNF-α) and interleukin-1 beta (IL-1β), as well as reduced oxidized low-density lipoprotein (ox-LDL) uptake and foam cell formation. Thus, based on these results, miR-146a encapsulated liposomes may be promising for reducing vascular inflammation by targeting its multiple associated mediators.
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Affiliation(s)
- Donald Ho
- Department of Pediatric Dentistry, University of Alabama at Birmingham, AL, 35294, USA
| | - Tyler O Lynd
- Department of Biomedical Engineering, University of Alabama at Birmingham, AL, 35294, USA
| | - Claire Jun
- School of Arts and Sciences, University of Pennsylvania, PA, 19104, USA
| | - Juhee Shin
- Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon, 35015, Republic of Korea
| | | | - Benjamin K Estep
- Department of Biomedical Engineering, University of Alabama at Birmingham, AL, 35294, USA
| | - Jun Chen
- Department of Biomedical Engineering, University of Alabama at Birmingham, AL, 35294, USA
| | - Xixi Zhang
- Department of Biomedical Engineering, University of Alabama at Birmingham, AL, 35294, USA
| | - Brigitta C Brott
- Endomimetics, LLC, Birmingham, AL, 35242, USA.
- Department of Medicine and Division of Cardiovascular Disease, University of Alabama at Birmingham, AL, 35233, USA
| | - Dong Woon Kim
- Department of Anatomy and Cell Biology, Brain Research Institute, Chungnam National University College of Medicine, Daejeon, 35015, Republic of Korea
| | | | - Patrick T J Hwang
- Department of Biomedical Engineering, University of Alabama at Birmingham, AL, 35294, USA
- Endomimetics, LLC, Birmingham, AL, 35242, USA.
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Fan Y, Jianying Z, Yuanyuan Z, Yan Y, Nong Y, Juan L, Jialei W, Jun Z, Zhehai W, Jun C, Zhu T, Li H, Li Z. EP08.02-052 Safety and Efficacy of Dabrafenib Plus Trametinib in Chinese Patients With BRAF V600E- Mutation Positive Metastatic NSCLC. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.734] [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: 11/26/2022]
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Miyoshi Y, Hosokawa K, Kurita S, Oyama SI, Ogawa Y, Saito S, Shinohara I, Kero A, Turunen E, Verronen PT, Kasahara S, Yokota S, Mitani T, Takashima T, Higashio N, Kasahara Y, Matsuda S, Tsuchiya F, Kumamoto A, Matsuoka A, Hori T, Keika K, Shoji M, Teramoto M, Imajo S, Jun C, Nakamura S. Penetration of MeV electrons into the mesosphere accompanying pulsating aurorae. Sci Rep 2021; 11:13724. [PMID: 34257336 PMCID: PMC8277844 DOI: 10.1038/s41598-021-92611-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [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: 03/16/2021] [Accepted: 06/14/2021] [Indexed: 11/16/2022] Open
Abstract
Pulsating aurorae (PsA) are caused by the intermittent precipitations of magnetospheric electrons (energies of a few keV to a few tens of keV) through wave-particle interactions, thereby depositing most of their energy at altitudes ~ 100 km. However, the maximum energy of precipitated electrons and its impacts on the atmosphere are unknown. Herein, we report unique observations by the European Incoherent Scatter (EISCAT) radar showing electron precipitations ranging from a few hundred keV to a few MeV during a PsA associated with a weak geomagnetic storm. Simultaneously, the Arase spacecraft has observed intense whistler-mode chorus waves at the conjugate location along magnetic field lines. A computer simulation based on the EISCAT observations shows immediate catalytic ozone depletion at the mesospheric altitudes. Since PsA occurs frequently, often in daily basis, and extends its impact over large MLT areas, we anticipate that the PsA possesses a significant forcing to the mesospheric ozone chemistry in high latitudes through high energy electron precipitations. Therefore, the generation of PsA results in the depletion of mesospheric ozone through high-energy electron precipitations caused by whistler-mode chorus waves, which are similar to the well-known effect due to solar energetic protons triggered by solar flares.
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Affiliation(s)
- Y Miyoshi
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, 464-8601, Japan.
| | - K Hosokawa
- Graduate School of Communication Engineering and Informatics, University of Electro-Communications, Chofu, 182-8585, Japan
| | - S Kurita
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, 611-0011, Japan
| | - S-I Oyama
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, 464-8601, Japan.,National Institute of Polar Research, Tachikawa, 190-8518, Japan.,University of Oulu, Pentti Kaiteran katu 1, Linnanmaa, Oulu, Finland
| | - Y Ogawa
- National Institute of Polar Research, Tachikawa, 190-8518, Japan.,The Graduate University for Advanced Studies, SOKENDAI, Hayama, 240-0193, Japan.,Joint Support-Center for Data Science Research, Research Organization of Information and Systems, Tachikawa, 190-8518, Japan
| | - S Saito
- National Institute of Information and Communications Technology, Tokyo, 184-8795, Japan
| | - I Shinohara
- Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210, Japan
| | - A Kero
- Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland
| | - E Turunen
- Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland
| | - P T Verronen
- Sodankylä Geophysical Observatory, University of Oulu, Sodankylä, Finland.,Space and Earth Observation Centre, Finnish Meteorological Institute, Helsinki, Finland
| | - S Kasahara
- Graduate School of Science, University of Tokyo, Tokyo, 113-0033, Japan
| | - S Yokota
- Graduate School of Science, Osaka University, Toyonaka, 560-0043, Japan
| | - T Mitani
- Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210, Japan
| | - T Takashima
- Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210, Japan
| | - N Higashio
- Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210, Japan
| | - Y Kasahara
- Graduate School of Natural Science and Technology, Kanazawa University, Kanazawa, 920-1192, Japan
| | - S Matsuda
- Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210, Japan
| | - F Tsuchiya
- Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - A Kumamoto
- Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan
| | - A Matsuoka
- Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
| | - T Hori
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, 464-8601, Japan
| | - K Keika
- Graduate School of Science, University of Tokyo, Tokyo, 113-0033, Japan
| | - M Shoji
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, 464-8601, Japan
| | - M Teramoto
- Graduate School of Engineering, Kyushu Institute of Technology, Fukuoka, 820-8501, Japan
| | - S Imajo
- Graduate School of Science, Kyoto University, Kyoto, 606-8502, Japan
| | - C Jun
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, 464-8601, Japan
| | - S Nakamura
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, 464-8601, Japan
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Hua-Yun Z, Wei-Ming W, Guo-Ding Z, Yuan-Yuan C, Feng LU, Ya-Ping GU, Chao Z, Sui XU, Jun C. [Epidemiological analysis of malaria prevalence in Jiangsu Province in 2015]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2017; 29:441-444. [PMID: 29508576 DOI: 10.16250/j.32.1374.2017029] [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 understand the malaria epidemic situation and characteristics in Jiangsu Province in 2015, so as to provide the evidence for malaria elimination. Methods The data of malaria cases in Jiangsu Province in 2015 were collected from China's routine diseases surveillance information system. Results Totally 405 imported cases were reported in Jiangsu Province in 2015, and the cases increased by 14.08% compared with those in 2014. All the malaria cases were imported, and 5 cases (1.23%) were from Southeast Asia and 400 (98.77%) were from 25 African countries or regions. The imported malaria cases were reported in 13 cities across Jiangsu Province, where Taizhou, Lianyungang, Nantong, Huaian and Yangzhou cities accounted for 68.64% of all the cases in the province. Jiangsu Institute of Parasitic Diseases (JIPD) reference lab checked all the cases and classified 299 falciparum malaria cases, 13 vivax malaria cases, 18 quartan malaria cases, 71 ovale malaria cases, and 4 mixed Plasmodium infection cases. Conclusions In Jiangsu Province, there are no local malaria cases for 4 consecutive years, but the imported cases are on the rise. Compared to 2014, the imported vivax cases increased significantly in 2015. It should be the key points to strengthen the surveillance of imported malaria cases, improve malaria diagnosis and treatment abilities for all levels of medical institutions, and promote the abilities of Plasmodium check, and focus survey and disposal of all Center for Disease Control (CDC) staffs across Jiangsu Province.
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Affiliation(s)
- Z Hua-Yun
- Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), and Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - W Wei-Ming
- Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), and Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Z Guo-Ding
- Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), and Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - C Yuan-Yuan
- Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), and Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - L U Feng
- Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), and Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - G U Ya-Ping
- Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), and Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Z Chao
- Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), and Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - X U Sui
- Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), and Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - C Jun
- Jiangsu Institute of Parasitic Diseases, Key Laboratory of Parasitic Disease Control and Prevention (Ministry of Health), and Jiangsu Provincial Key Laboratory of Parasite Molecular Biology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
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6
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Yuan-Yuan C, Guo-Ding Z, Ya-Ping GU, Xiang-Zhen XU, Xiao-Lin J, Hua-Yun Z, Jie W, You-Sheng L, Kun Y, Jun C. [Diagnostic knowledge and skills of parasitic diseases based on competition of professional personnel in Jiangsu Province, China]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2017; 29:508-511. [PMID: 29508594 DOI: 10.16250/j.32.1374.2016212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Objective To understand the integrated ability of parasitic disease prevention and control of professional personnel of Jiangsu Province through the contest. Methods Totally 56 players from the whole province were selected, and all the players participated in the contest. The theory knowledge and skill scores were collected and the statistical analyses were conducted. Results The average theoretical score of the participants was 88.86±15.56 and the passing rate was 91.1%. The average skill operating score was 69.16±16.01 and the passing rate was 67.9%. The average Plasmodium microscopy score was 16.54±8.09 and the passing rate was 50%. The average helminth egg microscopy score was 34.27±10.66 and the passing rate was 67.9%. There were statistical differences among the age groups and different levels of schistosomiasis endemic situation (F = 5.10, 6.39, both P < 0.01). The theoretical knowledge including schistosomiasis, malaria, hydatid disease and others and the score rates were 91.07%, 90.94%, 85.83% and 90.93%, respectively. The hydatid disease score rate was lower (χ2 = 19.17, P < 0.01). The radar chart displayed that the score rates of tabletting and microscopy test in Kato-Katz film production, malaria blood film production and microscopy test were all low. Conclusion In Jiangsu Province, the participants have higher score in the theory test. However, they have lower skill test score, especially in the parasite species identification. The operational skills still need to be strengthened for center for disease control (CDC) participants.
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Affiliation(s)
- C Yuan-Yuan
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Z Guo-Ding
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - G U Ya-Ping
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - X U Xiang-Zhen
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - J Xiao-Lin
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Z Hua-Yun
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - W Jie
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - L You-Sheng
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - Y Kun
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - C Jun
- Key Laboratory of National Health and Family Planning Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
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Tao Q, Lei Y, Zheng C, Bo W, Zhansen H, Hao L, Bin Z, Jun C. 346 Treatment of High-Flow Priapism With Superselective Transcatheter Embolization in 6 Patients. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.234] [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: 11/24/2022]
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Jun C, Song W, Diling C, Ying Y, Hao L, Zhansen H, Tao Q, Lili S, Dongqian S. 249 Preliminary Study on the Relationship Between Gut Microbiota and Type 2 Diabetic Erectile Dysfunction of Sprague -Dawley Rats. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.11.163] [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: 11/28/2022]
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Choi C, Sborchia C, Ioki K, Giraud B, Utin Y, Sa J, Wang X, Teissier P, Martinez J, Le Barbier R, Jun C, Dani S, Barabash V, Vertongen P, Alekseev A, Jucker P, Bayon A, Pathak H, Raval J, Ahn H, Kim B, Kuzmin E, Savrukhin P. Status of the ITER vacuum vessel construction. Fusion Engineering and Design 2014. [DOI: 10.1016/j.fusengdes.2013.12.056] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Dolff S, Quandt D, Feldkamp T, Jun C, Mitchell A, Hua F, Specker C, Kribben A, Witzke O, Wilde B. Increased percentages of PD-1 on CD4+ T cells is associated with higher INF-γ production and altered IL-17 production in patients with systemic lupus erythematosus. Scand J Rheumatol 2014; 43:307-13. [PMID: 25088926 DOI: 10.3109/03009742.2013.869830] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
OBJECTIVES Programmed death (PD)-1 is a cell death receptor that, upon stimulation, leads to apoptosis. Previous studies have shown alteration of PD-1 expression on T cells and PD-1 genes in patients with systemic lupus erythematosus (SLE). The aim of this study was to assess the expression of this receptor on effector T cells in patients with SLE. METHOD In this study we enrolled 32 SLE patients and 31 healthy controls. T cells from peripheral blood were analysed by flow cytometry for the expression of PD-1. Interferon (IFN)-γ and interleukin (IL)-17-producing cells were investigated for the expression of this co-stimulatory marker. RESULTS Percentages of CD4(+) T cells expressing PD-1 were significantly increased in patients with SLE compared to healthy controls. The percentage of PD-1 expression was correlated with the production of INF-γ (r = 0.83, p < 0.0001). We also investigated the production of IL-17 by PD-1(+) CD3(+) T cells. Inactive patients (3.2 ± 1.2% vs. 5.9 ± 3.5%, p = 0.002) and patients without lupus nephritis (LN) (3.2 ± 1.5% vs. 5.9 ± 3.5%, p = 0.005) showed lower levels of IL-17 compared to healthy controls. CONCLUSION We have demonstrated increased expression of PD-1 on CD4(+) T cells in SLE patients and an association between PD-1 expression on CD4(+) T cells and IFN-γ expression on CD3(+) T cells. We have also shown that there is an altered subset of PD-1(+) T cells in inactive patients and patients without LN producing lower amounts of IL-17.
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Affiliation(s)
- S Dolff
- Department of Nephrology, University Hospital Essen, University Duisburg-Essen , Essen , Germany
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Ioki K, Bayon A, Choi C, Daly E, Dani S, Davis J, Giraud B, Gribov Y, Hamlyn-Harris C, Jun C, Levesy B, Kim B, Kuzmin E, Le Barbier R, Martinez JM, Pathak H, Preble J, Sa J, Terasawa A, Utin Y, Wang X. Progress of ITER vacuum vessel. Fusion Engineering and Design 2013. [DOI: 10.1016/j.fusengdes.2013.02.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Meng X, Jun C, Wang Q, Zhang X, Li Z, Li Q, Hou J, Zeng Q, Wang Q, Ma X. High b-value diffusion tensor imaging of the remote white matter and white matter of obstructive unilateral cerebral arterial regions. Clin Radiol 2013; 68:815-22. [PMID: 23623577 DOI: 10.1016/j.crad.2013.03.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2012] [Revised: 03/08/2013] [Accepted: 03/14/2013] [Indexed: 12/13/2022]
Abstract
AIM To assess diffusion changes in the remote white matter and areas of white matter with cerebral artery obstruction without magnetic resonance imaging (MRI) evidence of brain parenchymal abnormalities using high b-value diffusion tensor imaging (DTI). MATERIALS AND METHODS A total of 34 patients with severe unilateral stenosis (≥75%) or occlusion of the middle cerebral artery (MCA) without abnormal brain parenchymal signals at MRI underwent DTI with a b value of 2200 s/mm(2) at 3 T. Fractional anisotropy (FA), apparent diffusion coefficient (ADC), axial diffusivity (eigenvalue λ₁) and radial diffusivity (eigenvalue λ₂₃) were measured at the bilateral corona radiata, anterior and posterior limbs of the internal capsule, cerebral peduncle, and pons. RESULTS The mean FA was significantly lower at the ipsilateral corona radiata and anterior and posterior limbs of the internal capsule than at the contralateral corona radiata and anterior and posterior limbs of the internal capsule (p < 0.05). The mean ADC, λ₁ and λ₂₃ were significantly higher at the ipsilateral corona radiata than at the contralateral corona radiata (p < 0.01). The mean λ₂₃ were significantly higher at the ipsilateral anterior and posterior limb of the internal capsule than at the contralateral anterior and posterior limb of the internal capsule (p < 0.05). The mean ADC, λ₁ and λ₂ ₃were not significantly different between the ipsilateral cerebral peduncle and pons. CONCLUSIONS High b-value DTI could sensitively reveal diffusion changes in white matter in regions of cerebral artery obstruction without abnormal anisotropy and diffusivity of the remote white matter of patients with severe MCA stenosis or occlusion without MRI evidence of brain parenchymal abnormalities.
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Affiliation(s)
- X Meng
- Department of Radiology, Qi Lu Hospital of Shandong University, Jinan, China
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Hoerning A, Köhler S, Jun C, Tebbe B, Fu J, Menke J, Wilde B, Dolff S, Feldkamp T, Briscoe DM, Kribben A, Hoyer PF, Witzke O. Peripherally circulating CD4⁺ FOXP3⁺ CXCR3⁺ T regulatory cells correlate with renal allograft function. Scand J Immunol 2012; 76:320-8. [PMID: 22670785 DOI: 10.1111/j.1365-3083.2012.02732.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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Peripheral immunoregulation depends on T regulatory cell trafficking into the allograft to modulate the local alloresponse. Little is known about the relevance of trafficking receptors for Tregs after solid organ transplantation in humans. In this study, expression of the peripheral chemokine receptors CXCR3 and CCR5 on CD4⁺ FOXP3⁺ Treg cells was analysed and correlated with allograft function in renal transplant recipients. Flow cytometry analysis of peripheral blood mononuclear cells of 54 renal transplant recipients receiving a calcineurin inhibitor-based immunosuppression was performed for CD4, CD25, FOXP3, CXCR3 and CCR5 within the first 18 months post-transplantation. Correlation analysis of chemokine receptor expression and glomerular filtration rate as calculated by MDRD (eGFR) was performed. Expression of the peripheral homing receptors CXCR3 (r = 0.44, P < 0.05) and CCR5 (r = 0.45, P < 0.05) on FOXP3⁺ Tregs correlated with renal allograft function (eGFR) in patients receiving tacrolimus (n = 28), but not cyclosporine A (CsA) (n = 26). CsA but not tacrolimus reduced surface expression of CXCR3 on FOXP3⁺ Tregs in renal transplant recipients as correlated to trough levels (r = -0.42, P < 0.05). In contrast to CD4⁺ CXCR3⁺ CD25(lo) T cells, flow-sorted CD4⁺ CXCR3⁺ CD25(hi) Tregs isolated from healthy individuals did not produce IFNγ or IL-17 ex vivo and expressed high levels of GARP mRNA both at baseline as well as after TCR activation indicating functional regulatory activity. Expression of the peripheral trafficking receptors CXCR3 and CCR5 on FOXP3⁺ Tregs is associated with renal allograft function. These results suggest that Treg trafficking may also depend on the interaction of CXCR3 or CCR5 and their respective ligands.
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Affiliation(s)
- A Hoerning
- Department of Pediatrics II, Pediatric Nephrology, Gastroenterology, Endocrinology and Transplant Medicine, Children's Hospital Essen, University Duisburg-Essen, Essen, Germany
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Ioki K, Choi C, Daly E, Dani S, Davis J, Giraud B, Gribov Y, Hamlyn-Harris C, Jones L, Jun C, Kim B, Kuzmin E, Le Barbier R, Martinez JM, Pathak H, Preble J, Reich J, Sa J, Terasawa A, Utin Y, Wang X, Wu S. ITER Vacuum Vessel design and construction. Fusion Engineering and Design 2012. [DOI: 10.1016/j.fusengdes.2012.02.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Hoerning A, Köhler S, Jun C, Lu J, Fu J, Tebbe B, Dolff S, Feldkamp T, Kribben A, Hoyer PF, Witzke O. Cyclosporin but not everolimus inhibits chemokine receptor expression on CD4+ T cell subsets circulating in the peripheral blood of renal transplant recipients. Clin Exp Immunol 2012; 168:251-9. [PMID: 22471287 DOI: 10.1111/j.1365-2249.2012.04571.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The peripheral chemokine receptors chemokine receptor 3 (CXCR3) and CC chemokine receptor 5 (CCR5) have been reported to be associated with allograft rejection. The impact of the expression of immunosuppressive drugs on peripherally circulating CD4(+) T cell subsets after renal transplantation is unknown. Expression of CXCR3 and CCR5 was investigated by flow cytometry in 20 renal allograft recipients participating in a prospective, randomized trial (NCT00514514). Initial immunosuppression consisted of basiliximab, cyclosporin A (CsA), mycophenolate sodium and corticosteroids. After 3 months, patients were treated either with CsA, mycophenolate sodium (MPA) plus corticosteroids (n = 6), CsA and everolimus plus corticosteroids (n =8) or CsA-free (CsA(free)) receiving everolimus, MPA and corticosteroids (n = 6). After initial reduction of CD4(+) forkhead box protein 3 (FoxP3)(+) and CD4(+) CD25(hi) FoxP3(+) regulatory T cells (T(regs)) (P < 0.05; P < 0.01), 3-month post-transplant percentages of T(regs) were reconstituted in CsA(free) and CsA(lo) arms compared to CsA(reg) 12 months post transplant. Expression of CCR5 and CXCR3 on CD4(+) FoxP3(+) and CD4(+) FoxP3(-) T cells 12 months post transplant was increased in CsA(free) versus CsA(reg). Increase in CCR5(+) CXCR3(+) co-expressing CD4(+) FoxP3(-) cells between 3 and 12 months correlated negatively with the glomerular filtration rate (GFR) slope/year [modification of diet in renal disease (MDRD); r = -0.59, P < 0.01]. CsA, but not everolimus, inhibits both T(reg) development and expression of CXCR3 and CCR5 on CD4(+) T cell subsets. Increase in CCR5(+) CXCR3(+) co-expressing CD4(+) FoxP3(-) T cells is associated with early loss in allograft function.
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Affiliation(s)
- A Hoerning
- Department of Pediatrics II, Pediatric Nephrology, Gastroenterology, Endocrinology and Transplant Medicine, Children's Hospital Essen, Essen, Germany.
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Jun C, Jung Y, Hong H, Park, Kang H, Chang J, Suh J. Anti-Obesity Effects of Chitosan and Psyllium Husk with L-Ascorbic acid in Guinea Pigs. INT J VITAM NUTR RES 2012; 82:113-20. [DOI: 10.1024/0300-9831/a000100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The aim of this study was to investigate whether L-Ascorbic acid would facilitate the anti-obesity effects of chitosan and psyllium husk in vivo. The study was carried out with male Hartley guinea pigs for 5 weeks. The results show that chitosan itself did not influence body weight gain and food efficiency ratio (FER). However, the addition of L-Ascorbic acid to chitosan decreased these parameters; the body weight gain and FER in the chitosan-2 group (high-fat diet group with 5 % chitosan containing 0.5 % L-Ascorbic acid) was significantly (p < 0.05) lower than that in F-controls (high-fat diet group), and was similar to that in controls (normal diet group). L-Ascorbic acid enhanced significantly (p < 0.05) the increases of total fecal weight and fecal fat excretion by chitosan. The addition of L-Ascorbic acid to psyllium husk did not differ from psyllium husk alone in terms of changes in weight gain, plasma lipid levels, and fat pad weight. We found that the addition of L-Ascorbic acid to chitosan influenced the reduction in body weight gain and FER, and the increase in total fecal weight and fecal fat excretion in guinea pigs fed a high-fat diet.
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Affiliation(s)
- C. Jun
- Department of Food and Nutrition, Dongduk Womens University, Seoul, Korea
| | - Y. Jung
- Department of Food and Nutrition, Korea University, Seoul, Korea
| | - H. Hong
- Department of Food and Nutrition, Korea University, Seoul, Korea
| | - Park
- Department of Food and Nutrition, Korea University, Seoul, Korea
| | - H. Kang
- Department of Physical Education, Soonchunhyang University, Asan-si, Korea
| | - J. Chang
- Department of Food and Nutrition, Dongduk Womens University, Seoul, Korea
| | - J. Suh
- Department of Food and Nutrition, Korea University, Seoul, Korea
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Ioki K, Choi CH, Daly E, Dani S, Davis J, Giraud B, Hamlyn-Harris C, Johnson G, Jones L, Jun C, Kim BC, Kuzmin E, Barbier RL, Martinez J, Pathak H, Preble J, Reich J, Sa JW, Terasawa A, Utin Y, Wang X, Wu S. Fabrication Preparation of ITER Vacuum Vessel—Material Considerations, Regulatory Requirements, and Fabrication Plans. Fusion Science and Technology 2012. [DOI: 10.13182/fst12-a13382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- K. Ioki
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - C. H. Choi
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - E. Daly
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - S. Dani
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - J. Davis
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - B. Giraud
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - C. Hamlyn-Harris
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - G. Johnson
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - L. Jones
- F4E, c0 Josep Pla, n.2, Torres Diagonal Litoral, Edificio B3, E-08019, Barcelona, Spain
| | - C. Jun
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - B. C. Kim
- NFRI, 52 Yeoeundong Yuseonggu, Daejeon 305-333, Korea
| | - E. Kuzmin
- NTC “Sintez”, Efremov Inst., 189631 Metallostroy, St. Petersburg, Russia
| | - R. Le Barbier
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - J.M. Martinez
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - H. Pathak
- ITER-India, A-29, GIDC Electronic Estate, Sector-25, Gandhinagar-382025, India
| | - J. Preble
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - J. Reich
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - J. W. Sa
- NFRI, 52 Yeoeundong Yuseonggu, Daejeon 305-333, Korea
| | - A. Terasawa
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - Yu. Utin
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - X. Wang
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
| | - S. Wu
- ITER Organization, Route de Vinon sur Verdon, 13115 St. Paul-lez-Durance, France
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Jun C, Bin Z, Tao Q, Bo W, Xiaoming L, Chen C. Cardiovascular risk among men with and without erectile dysfunction: case-control study. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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19
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Ioki K, Barabash V, Choi C, Cordier JJ, Daly E, Dani S, Davis J, Giraud B, Gribov Y, Heitzenroeder P, Hamlyn-Harris C, Johnson G, Jones L, Jun C, Kim B, Kuzmin E, Le Barbier R, Loesser D, Martinez JM, Merola M, Pathak H, Preble J, Reich J, Sa J, Terasawa A, Utin Y, Wang X, Wu S. Design finalization and start of construction of ITER vacuum vessel. Fusion Engineering and Design 2011. [DOI: 10.1016/j.fusengdes.2011.02.084] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zhihui Z, Jun C, Yaoming N, Lu W, Changhai Z, Zhiyuan S. A practical model to induce bradycardia by chemical ablation of sinus node and bilateral vagus nerve stimulation in rabbits, which satisfies the requirement for biopacemaking experiment in vivo. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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21
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Erhong Z, Bin Z, Shaochun M, Jun C, Tao Q, Xiaoming L, Shiqin C. Clinic significances of the penile brachial index in the diagnosis of erectile dysfunction. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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22
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Bin Z, Tao O, Jun C, Bo W, Xiaoming L, Chen C. The influence of enhanced external counterpulsation therapy on testicle and corpus cavernosum of hyperlipidemia pig. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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23
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Jun C, Yaoming N, Lu W, Zhihui Z, Yao Q, Changhai Z, Zhiyuan S. Isolation of canine bone marrow mesenchymal stem cells by a novel method. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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24
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Bin Z, Jun C, Tao Q, Bo W, Xiaoming L, Chen C. The cure security and effectiveness of erectile dysfunction with low cardiovascular risk factors. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hengjun X, Jun C, Jun P, Yan Z, Xiaopeng L, Hao Z, Xingqiao W, Jianguang Q, Xiangfu Z, Bin Z, Xin G. Efficacy of terazosin therapy for mild hypertension patients with lower urinary tract symptoms. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lijian G, Jun C, Jilin C, Yuejin Y, Shubin Q, Bo X, Jianjun L, Xuewen Q, Jinqing Y, Yongjian W, Jue C, Shijie Y, Jie Q, Jun D, Fenghuan H, Runlin G. e0354 Angiographic characteristics of premature coronary heart disease--analyses of single center. Heart 2010. [DOI: 10.1136/hrt.2010.208967.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Lijian G, Jun C, Jilin C, Yuejin Y, Shubin Q, Bo X, Jianjun L, Xuewen Q, Jinqing Y, Yongjian W, Jue C, Shijie Y, Jie Q, Jun D, Fenghuan H, Runlin G. e0284 Intravascular ultrasound (IVUS) characteristics of premature coronary heart disease (CHD) patients with different risk factors. Heart 2010. [DOI: 10.1136/hrt.2010.208967.284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhipeng C, Jiabi Z, Hongxuan C, Yan-yu X, Jun C, Bao-chang C. Distribution of liposomal bifendate in liver following intravenous injection in mice. J Drug Target 2010; 18:627-36. [DOI: 10.3109/10611861003639788] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Akhtar N, Woodruff S, Mukkada V, Fillon S, Masterson J, Kagalwalla A, Jun C, Lee J, Furuta G, Ackerman S. Epithelial Mesenchymal Transition in Eosinophilic Esophagitis: Identification and Contributions to Esophageal Remodeling and Fibrosis. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.631] [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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Ioki K, Bachmann C, Chappuis P, Cordier JJ, Giraud B, Gribov Y, Jones L, Jun C, Kim B, Kuzmin E, Pathak H, Readman P, Sugihara M, Utin Y, Wang X, Wu S. ITER vacuum vessel: Design review and start of procurement process. Fusion Engineering and Design 2009. [DOI: 10.1016/j.fusengdes.2009.01.070] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Jun C, Yifeng J, Haolei S, Jianmeng C. Effect of key parameters on nitric oxide removal by an anaerobic rotating drum biofilter. Environ Technol 2008; 29:1241-1247. [PMID: 18975856 DOI: 10.1080/09593330802278296] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A bench-scale anaerobic rotating drum biofilter (RDB) was used to demonstrate its ability to treat off-gas containing nitric oxide (NO), by examining the inlet NO concentration and operating temperature as the selected operational parameters. After 30 days' start-up, the long-term stable performance of the RDB was investigated for 100 days. The inlet NO concentration fluctuated between approximately 90 and 433 mg m3, while the removal efficiency was maintained at 60-85%, and the average elimination capacity was 10.4 g m(-3) h(-1). With the inlet NO load increasing from 150 to 1300 mg m(-3), the elimination capacity of the RDB increased from 3 to 26 g m(-3) h(-1) while the removal efficiency decreased sharply from 86% to 40%. At a lower range of NO concentrations (< 150 mg m(-3)), the temperature had no visible effect on the removal efficiency, whereas if NO concentrations were higher than 150 mg m(-3), a non-negligible enhancement of NO removal was found when the temperature was gradually raised from 25 degrees C to 30 degrees C. The optimal temperature was around 30 degrees C. The results proved that the RDB had more advantages over a traditional bioreactor in terms of low mass transfer resistance, high effective utility of packing materials, high even distribution of biomass and no biomass clogging of packing materials. The RDB proved to be an effective treatment process for NO removal.
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Affiliation(s)
- C Jun
- College of Biological and Environmental Engineering, Zhejiang, University of Technology, Hangzhou 310032, China
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Gustavsson M, Fredriksson H, Kasemo B, Jusys Z, Kaiser J, Jun C, Behm R. Nanostructured platinum-on-carbon model electrocatalysts prepared by colloidal lithography. J Electroanal Chem (Lausanne) 2004. [DOI: 10.1016/j.jelechem.2004.01.031] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
The aim of this study is to explore the vascular perturbations associated with AIDS infections as a means of developing strategies to help in the treatment of these patients. Closed-circuit television microscopic observation of the microcirculation in the nail fold was carried out on 11 AIDS patients and 11 healthy European adults. A striking pattern of severe microvascular disturbances was demonstrated in these patients: (i) a suppression of the spontaneous, rhythmic adjustments of capillary blood perfusion, and (ii) damage to the endothelium of the capillary wall. These findings suggest a substantial involvement of the microcirculation in the pathogenetic development of the AIDS syndrome, as well as a close relationship between microvascular perfusion and the immune condition of the organism. The data indicate that the treatment of the AIDS patient should be directed not only toward the inhibition or killing of the virus, but also toward the improvement of microcirculatory perfusion.
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Affiliation(s)
- R J Xiu
- Institute of Microcirculation, Chinese Academy of Medical Sciences, Beijing
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Abstract
An unusual case is described of a fibro-osseous lesion of the brain. Some other causes of densely calcified intracranial lesions are briefly discussed.
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