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Liu YL, Song JS, Wang WW, Tang YT. The relationship between adverse outcomes and a full spectrum of ejection fraction in patients without acute myocardial infarction undergoing percutaneous coronary intervention. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.2103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
There is insufficient study evaluating how the risk of adverse cardiovascular outcomes varies across the full range of LVEF in patients undergoing percutaneous coronary intervention (PCI). A more comprehensive evaluation could provide further understanding of prognosis and support the management of these patients.
Purpose
The present study aimed to assess the association between left ventricular ejection fraction (LVEF) and major adverse cardiovascular events (MACE) in patients with coronary artery diseases undergoing PCI.
Methods
A consecutive series of 9475 patients without acute myocardial infarction (AMI) undergoing PCI were enrolled into the study and followed up for a median 2.4 years. Patients were stratified into 8 groups by 5% intervals: under 40%, 40–45%, 45–50%, 50–55%, 55–60%, 60–65%, 65–70%, and over 70%. MACE, consisting of cardiac death, myocardial infarction, stent thrombosis, and revascularization, was evaluated as the outcome.
Results
MACE occurred in 594 (6.3%) patients. The MACE rates decreased before LVEF under 65% while increased after LVEF over 70%, showing a U-shaped pattern. The 65–70% group showed the lowest rate of MACE (4.5%). Consistently, in the Cox regression, the association between LVEF and MACE presented as a U-shaped pattern regardless of different age and sex groups, and after adjusted for clinical and procedural covariables. The LVEF categories lower than 65% or higher than 70% were independent predictors of MACE, compared with 65–70% group (Hazard ratios 1.311 to 2.657, all P value >0.05). Similar trend was also observed in restricted mean survival time analysis.
Conclusions
LVEF and MACE displayed a U-shaped association and patients with LVEF of 65–70% showed the lowest risk of MACE. The present study provided an insight into how the MACE risk changed in a wide spectrum of LVEF in patients without AMI undergoing PCI, which might improve preprocedural evaluation.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y L Liu
- Fuwai Hospital, CAMS and PUMC, Department of cardiology, Beijing, China
| | - J S Song
- Fuwai Hospital, CAMS and PUMC, Department of cardiology, Beijing, China
| | - W W Wang
- Fuwai Hospital, CAMS and PUMC, Department of cardiology, Beijing, China
| | - Y T Tang
- Peking University Third Hospital, Department of cardiology, Beijing, China
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2
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Kim SI, Lee HY, Jung WC, Song JS. EVALUATION OF INTERNAL EXPOSURE TO RADIOACTIVE AEROSOL GENERATED FROM PLASMA MELTING SYSTEM USING THE BIDAS CODE. Radiat Prot Dosimetry 2021; 194:9-17. [PMID: 33954746 DOI: 10.1093/rpd/ncab061] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 02/23/2021] [Accepted: 04/02/2021] [Indexed: 06/12/2023]
Abstract
The radioactive aerosol generated by the Nuclear Power Plant (NPP) decommissioning process can be inhaled by workers and deposited inside the human body, resulting in internal exposure. Because internal exposure, unlike external exposure, is difficult to measure directly, it is all the more necessary to assess the dose workers receive as a result of internal exposure. Precise assessment of the internal exposure necessitates actual measurements in the work environment such as the workers' respiration rate, kind of nuclide and amount of captured nuclide. However, in the event of difficulties in securing these measurements, the internal exposure dose can be estimated based upon the recommended values by the ICRP (International Commission on Radiological Protection) such as the intake fraction and particle size. In this study, 5 μm was selected as the particle size as recommended by the ICRP, and both heavy and light respiratory rates were used in the calculation. With respect to the nuclides contained in the radioactive aerosol and their concentrations, the data captured for the aerosol in the melting facility on the Kozloduy NPP premises in Bulgaria were applied to estimate workers' internal exposure. As a result, each worker was found not to have received more than 20 mSv/yr, which is the maximum annual permissible dose for workers.
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Affiliation(s)
- S I Kim
- Department of Nuclear Engineering, Chosun University, Pilmundae-ro 309, Dong-gu, Gwangju KS008, Republic of Korea
| | - H Y Lee
- Department of Nuclear Engineering, Chosun University, Pilmundae-ro 309, Dong-gu, Gwangju KS008, Republic of Korea
| | - W C Jung
- Department of Chemical Engineering, Korea Hydro & Nuclear Power Co., Ltd (KHNP), 103-16, Bulguk-ro, Yangbuk-myeon, Gyeongju-si, Gyeongbuk KSxx010, Republic of Korea
| | - J S Song
- Department of Nuclear Engineering, Chosun University, Pilmundae-ro 309, Dong-gu, Gwangju KS008, Republic of Korea
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3
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Song JS, Sun JJ, Sun YE, Liu Y, Gu XP, Ma ZL. [Risk factors of massive introperative blood loss in posterior spinal fusion for adolescent idiopathic scoliosis]. Zhonghua Yi Xue Za Zhi 2021; 101:1002-1008. [PMID: 33845538 DOI: 10.3760/cma.j.cn112137-20200924-02710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the risk factors and prognostic impact of massive introperative blood loss in posterior spinal fusion (PSF) surgery for adolescent idiopathic scoliosis (AIS). Methods: Clinical data were collected of 1 896 AIS patients who underwent PSF surgery under general anesthesia in Drum Tower Hospital Affiliated to Nanjing University Medical School from November 2010 to October 2019 and retrospectively analyzed. According to the volume of intraoperative blood loss, the patients were divided into the massive introperative blood loss group [estimated blood loss (EBL)/estimated blood volume (EBV)≥30%] and the non-massive introperative blood loss group (EBL/EBV<30%). The perioperative parameters between the two groups were compared, single factor analysis and multivariate logistic regression analysis was performed to identify independent risk factors related to massive introperative blood loss in PSF surgery. Results: A total of 1 896 AIS patients who underwent PSF surgery were included in the study. There were 298 males and 1 598 females, with an age of (14.5±1.7) years. Among them, 633 (33%) experienced massive intraoperative blood loss. The factors significantly related to the massive blood loss during PSF surgery in this study are: sex, body mass index(BMI), preoperative blood platelet count (PLT), prothrombin time, international normalized ratio(INR), preoperative Cobb angle, duration of operation, the number of fused levels, the number of screws, thoracoplasty, intraoperative use of tranexamic acid and dexmedetomidine; The independent factors included duration of operation longer than 4 hours(OR=4.311,P<0.001), the number of fused levels to be more than 10(OR=4.044,P<0.001), thoracoplasty (OR=2.174,P=0.019), BMI lower than 18.1 kg/m2(OR=2.094,P<0.001), preoperative PLT less than 186.5×109/L(OR=1.480,P=0.009), preoperative INR larger than 1 (OR=1.531,P=0.003) and preoperative Cobb angle larger than 53°(OR=1.306,P=0.036) ;Intraoperative use of tranexamic acid (OR=0.770, P=0.047) and dexmedetomidine (OR=0.653, P=0.008) are protective factors for massive intraoperative blood loss. In addition, in the massive intraoperative blood loss group, length of postoperative hospital stay (P<0.001), volume of postoperative incision drainage (P<0.001), postoperative allogeneic blood transfusion rate (22.7% vs 14.3%, P<0.001), incidence of postoperative hypoalbuminemia (90.3% vs 80.7%, P<0.001) and the number of rescue opioid analgesic requirements after surgery (P=0.006) were significantly higher than those in the non-massive introperative blood loss group. Conclusions: Longer operation duration, higher number of fusion levels, lower BMI, lower preoperative PLT, higher INR, larger preoperative Cobb angle and intraoperative thoraplasty are independent risk factors for massive intraoperative blood loss in AIS patients undergoing PSF surgery. Intraoperative use of tranexamic acid and dexmedetomidine can reduce the risk of massive blood loss in PSF surgery. Massive intraoperative blood loss significantly affects the patient's prognosis.
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Affiliation(s)
- J S Song
- Department of Anesthesiology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, China
| | - J J Sun
- Department of Anesthesiology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, China
| | - Y E Sun
- Department of Anesthesiology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, China
| | - Y Liu
- Department of Anesthesiology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, China
| | - X P Gu
- Department of Anesthesiology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, China
| | - Z L Ma
- Department of Anesthesiology, Drum Tower Hospital Affiliated to Nanjing University Medical School, Nanjing 210008, China
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4
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Lim B, Hwang M, Song JS, Ryu AJ, Joung B, Shim EB, Ryu H, Pak HN. 1008Effectiveness of atrial fibrillation rotor ablation is dependent on conduction velocity: an in-silico 3-dimensional modeling study. Europace 2018. [DOI: 10.1093/europace/euy015.557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- B Lim
- Yonsei University , Seoul, Korea Republic of
| | - M Hwang
- Yonsei University , Seoul, Korea Republic of
| | - J S Song
- Yonsei University , Seoul, Korea Republic of
| | - A J Ryu
- Kangwon National University Hospital, Chuncheon, Korea Republic of
| | - B Joung
- Yonsei University , Seoul, Korea Republic of
| | - E B Shim
- Kangwon National University Hospital, Chuncheon, Korea Republic of
| | - H Ryu
- NVIDIA, Seoul, Korea Republic of
| | - H N Pak
- Yonsei University , Seoul, Korea Republic of
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5
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Chen Y, Song JS. [The clinical application status and progression of auditory steady-state evoked response]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1854-1857. [PMID: 29798404 DOI: 10.13201/j.issn.1001-1781.2017.23.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Indexed: 11/12/2022]
Abstract
Auditory steady-state evoked response(ASSR) is an objective method to evaluate hearing threshold. Recently, it was reported that CE-Chirp ASSR is more reliable than the conventional ASSR in predicting the behavioral hearing threshold. Many reseaches were conducted to improve the reliability of ASSR threshold and behavioral threshold. This paper reviewed the development, principle, clinical application status, and progress of ASSR.
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Affiliation(s)
- Y Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the First People's Hospital Affiliated to Guangzhou Medical University, Guangzhou, 510180, China
| | - J S Song
- Department of Otorhinolaryngology Head and Neck Surgery, the First People's Hospital Affiliated to Guangzhou Medical University, Guangzhou, 510180, China
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6
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Park DW, Kim SH, Moon JY, Song JS, Choi J, Kwak HJ, Jeong MG, Ro YS, Kim TH, Sohn JW, Shin DH, Park SS, Yoon HJ. The effect of low-volatile organic compounds, water-based paint on aggravation of allergic disease in schoolchildren. Indoor Air 2017; 27:320-328. [PMID: 27007057 DOI: 10.1111/ina.12301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Accepted: 03/19/2016] [Indexed: 06/05/2023]
Abstract
Whether indoor painting aggravates preexisting allergic diseases remains unclear. We aimed to evaluate the impact of new classroom painting on aggravation of asthma, allergic rhinitis (AR), and atopic dermatitis (AD) in children. Studied school was previously painted with conventional water-based paint 20 years ago and had natural ventilation system. We identified a total of 172 children aged 10-12 years with allergic diseases in 17 classrooms, which were allocated to newly painted rooms with low-volatile organic compounds (VOC), water-based paint, or existing rooms. After painting, there was no intervention or internal airflow to influence indoor air environment in both classrooms. We prospectively assessed the symptom severity and serious events of allergic diseases between both classrooms at baseline and after one and eight weeks after painting. At one and eight weeks, there were no significant changes in the Childhood Asthma Control Test scores, the fractional nitric oxide levels, lung function in asthmatic children in either classroom. There were also no significant changes in the severity score of AR or AD, or serious events in all allergic diseases. These findings suggest classroom painting with this new paint at the levels encountered in this study might not be a major aggravating factor for school-aged children with allergic diseases.
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Affiliation(s)
- D W Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - S-H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J-Y Moon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J S Song
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J Choi
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - H J Kwak
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - M G Jeong
- Department of Dermatology, Hanyang University College of Medicine, Seoul, Korea
| | - Y S Ro
- Department of Dermatology, Hanyang University College of Medicine, Seoul, Korea
| | - T H Kim
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - J W Sohn
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - D H Shin
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - S S Park
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - H J Yoon
- Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea
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7
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Song JS, Takimoto K, Jeon M, Vadakekalam J, Ruparel NB, Diogenes A. Decellularized Human Dental Pulp as a Scaffold for Regenerative Endodontics. J Dent Res 2017; 96:640-646. [PMID: 28196330 DOI: 10.1177/0022034517693606] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Teeth undergo postnatal organogenesis relatively late in life and only complete full maturation a few years after the crown first erupts in the oral cavity. At this stage, development can be arrested if the tooth organ is damaged by either trauma or caries. Regenerative endodontic procedures (REPs) are a treatment alternative to conventional root canal treatment for immature teeth. These procedures rely on the transfer of apically positioned stem cells, including stem cells of the apical papilla (SCAP), into the root canal system. Although clinical success has been reported for these procedures, the predictability of expected outcomes and the organization of the newly formed tissues are affected by the lack of an available suitable scaffold that mimics the complexity of the dental pulp extracellular matrix (ECM). In this study, we evaluated 3 methods of decellularization of human dental pulp to be used as a potential autograft scaffold. Tooth slices of human healthy extracted third molars were decellularized by 3 different methods. One of the methods generated the maximum observed decellularization with minimal impact on the ECM composition and organization. Furthermore, recellularization of the scaffold supported the proliferation of SCAP throughout the scaffold with differentiation into odontoblast-like cells near the dentinal walls. Thus, this study reports that human dental pulp from healthy extracted teeth can be successfully decellularized, and the resulting scaffold supports the proliferation and differentiation of SCAP. The future application of this form of an autograft in REPs can fulfill a yet unmet need for a suitable scaffold, potentially improving clinical outcomes and ultimately promoting the survival and function of teeth with otherwise poor prognosis.
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Affiliation(s)
- J S Song
- 1 Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.,2 Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul, Republic of Korea
| | - K Takimoto
- 1 Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - M Jeon
- 3 Oral Science Research Center, College of Dentistry, Yonsei University, Seoul, Republic of Korea
| | - J Vadakekalam
- 1 Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - N B Ruparel
- 1 Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - A Diogenes
- 1 Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
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8
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Abstract
The regeneration of structurally/functionally competent tooth root cementum is a critical step for the successful restoration of periodontal attachment. In this study, we tested whether a poly-glutamic acid-rich domain and glutamine-containing transglutaminase substrate can be used to target biologically active peptides to the mineralized root matrix and to bind such peptides covalently to the organic matrix. As a biologically active model molecule, the integrin-binding motif, RGD, was used. The effects of immobilization of such synthetic peptides to the dentin matrix on cementoblastic adhesion in vitro and cementogenesis in vivo were studied. In vitro, cementoblastic adhesion improved significantly when the dentin surface contained covalently bound peptides. In vivo, this bound peptide significantly increased cementum formation compared with that attained in control conditions. Transglutaminase-catalyzed covalent binding of bioactive peptides targeted to mineralized collagenous dentin matrix via the poly-glutamate domain can be readily achieved. This approach offers potential for clinical use in periodontal regeneration.
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Affiliation(s)
- J S Song
- Department of Endodontics, School of Dental Medicine, University of Pennsylvania, 240 South 40th Street, Levy Bldg, Rm 423, Philadelphia, PA 19104, USA.
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9
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Lee HS, Lee JH, Kim SO, Song JS, Kim BI, Kim YJ, Lee JH. Comparison of the oral microbiome of siblings using next-generation sequencing: a pilot study. Oral Dis 2016; 22:549-56. [DOI: 10.1111/odi.12491] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 04/05/2016] [Accepted: 04/10/2016] [Indexed: 01/06/2023]
Affiliation(s)
- H-S Lee
- Department of Pediatric Dentistry; School of Dentistry; Kyung Hee University; Seoul Korea
| | - JH Lee
- Department of Clinical Pharmacology and Therapeutics; College of Medicine; Kyung Hee University; Seoul Korea
| | - S-O Kim
- Department of Pediatric Dentistry; College of Dentistry; Yonsei University; Seoul Korea
- Oral Science Research Center; College of Dentistry; Yonsei University; Seoul Korea
| | - JS Song
- Department of Pediatric Dentistry; College of Dentistry; Yonsei University; Seoul Korea
- Oral Science Research Center; College of Dentistry; Yonsei University; Seoul Korea
| | - BI Kim
- Oral Science Research Center; College of Dentistry; Yonsei University; Seoul Korea
- Department of Preventive Dentistry and Public Oral Health; College of Dentistry; Yonsei University; Seoul Korea
| | - YJ Kim
- Department of Pediatric Dentistry; School of Dentistry; Seoul National University; Seoul Korea
| | - J-H Lee
- Department of Pediatric Dentistry; College of Dentistry; Yonsei University; Seoul Korea
- Oral Science Research Center; College of Dentistry; Yonsei University; Seoul Korea
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10
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Chun S, Song JS, Yu S, Kim JS, Kwon OJ, Kang ES. Identification of a novel HLA-C*03 variant allele, C*03:280 by sequence-based typing. ACTA ACUST UNITED AC 2015; 86:455-6. [PMID: 26514239 DOI: 10.1111/tan.12685] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 08/31/2015] [Accepted: 09/22/2015] [Indexed: 11/29/2022]
Abstract
The new allele, HLA-C*03:280 differs from C*03:04:01 by one nucleotide substitution at codon 35 (CGG→CAG).
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Affiliation(s)
- S Chun
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J S Song
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S Yu
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - J S Kim
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - O J Kwon
- Biowithus Life Science Institute, Seoul, Korea
| | - E S Kang
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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11
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Watanabe YX, Kim YH, Jeong SC, Hirayama Y, Imai N, Ishiyama H, Jung HS, Miyatake H, Choi S, Song JS, Clement E, de France G, Navin A, Rejmund M, Schmitt C, Pollarolo G, Corradi L, Fioretto E, Montanari D, Niikura M, Suzuki D, Nishibata H, Takatsu J. Pathway for the Production of Neutron-Rich Isotopes around the N=126 Shell Closure. Phys Rev Lett 2015; 115:172503. [PMID: 26551108 DOI: 10.1103/physrevlett.115.172503] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Indexed: 06/05/2023]
Abstract
Absolute cross sections for isotopically identified products formed in multinucleon transfer in the (136)Xe+(198)Pt system at ∼8 MeV/nucleon are reported. The isotopic distributions obtained using a large acceptance spectrometer demonstrated the production of the "hard-to-reach" neutron-rich isotopes for Z<78 around the N=126 shell closure far from stability. The main contribution to the formation of these exotic nuclei is shown to arise in collisions with a small kinetic energy dissipation. The present experimental finding corroborates for the first time recent predictions that multinucleon transfer reactions would be the optimum method to populate and characterize neutron-rich isotopes around N=126 which are crucial for understanding both astrophysically relevant processes and the evolution of "magic" numbers far from stability.
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Affiliation(s)
- Y X Watanabe
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Y H Kim
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
- Institute for Nuclear and Particle Astrophysics, Seoul National University, Seoul 08826, Korea
| | - S C Jeong
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - Y Hirayama
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - N Imai
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H Ishiyama
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H S Jung
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - H Miyatake
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - S Choi
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
- Institute for Nuclear and Particle Astrophysics, Seoul National University, Seoul 08826, Korea
| | - J S Song
- Department of Physics and Astronomy, Seoul National University, Seoul 08826, Korea
- Institute for Nuclear and Particle Astrophysics, Seoul National University, Seoul 08826, Korea
- Institute for Basic Science, Daejeon 34047, Korea
| | - E Clement
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - G de France
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - A Navin
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - M Rejmund
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - C Schmitt
- Grand Accélérateur National d'Ions Lourds (GANIL), F-14076 Caen Cedex 5, France
| | - G Pollarolo
- Dipartimento di Fisica Teorica, Università di Torino, and Istituto Nazionale di Fisica Nucleare, I-10125 Torino, Italy
| | - L Corradi
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - E Fioretto
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Italy
| | - D Montanari
- Dipartimento di Fisica, Università di Padova, and Istituto Nazionale di Fisica Nucleare, I-35131 Padova, Italy
| | - M Niikura
- Institut de Physique Nucléaire (IPN), IN2P3-CNRS, F-91406 Orsay Cedex, France
| | - D Suzuki
- Institut de Physique Nucléaire (IPN), IN2P3-CNRS, F-91406 Orsay Cedex, France
| | - H Nishibata
- Department of Physics, Osaka University, Osaka 560-0043, Japan
| | - J Takatsu
- Department of Physics, Osaka University, Osaka 560-0043, Japan
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12
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Kang CM, Kim SH, Shin Y, Lee HS, Lee JH, Kim GT, Song JS. A randomized controlled trial of ProRoot MTA, OrthoMTA and RetroMTA for pulpotomy in primary molars. Oral Dis 2015; 21:785-91. [DOI: 10.1111/odi.12348] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2015] [Revised: 04/21/2015] [Accepted: 04/29/2015] [Indexed: 11/27/2022]
Affiliation(s)
- C-M Kang
- Department of Pediatric Dentistry; College of Dentistry; Yonsei University; Seoul Korea
| | - S-H Kim
- Department of Pediatric Dentistry; College of Dentistry; Yonsei University; Seoul Korea
| | - Y Shin
- Department of Conservative Dentistry; College of Dentistry; Yonsei University; Seoul Korea
| | - H-S Lee
- Department of Pediatric Dentistry; Dental school; Kyung Hee University; Seoul Korea
| | - J-H Lee
- Department of Pediatric Dentistry; College of Dentistry; Yonsei University; Seoul Korea
| | - GT Kim
- Department of Oral and Maxillofacial radiology; Dental school; Kyung Hee University; Seoul Korea
| | - JS Song
- Department of Pediatric Dentistry; College of Dentistry; Yonsei University; Seoul Korea
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13
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Lee SH, Kim DS, Kim YW, Chung MP, Uh ST, Park CS, Jeong SH, Park YB, Lee HL, Song JS, Shin JW, Yoo NS, Lee EJ, Lee JH, Jegal Y, Lee HK, Park MS. Association between occupational dust exposure and prognosis of idiopathic pulmonary fibrosis: a Korean national survey. Chest 2015; 147:465-474. [PMID: 25275573 DOI: 10.1378/chest.14-0994] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Previous studies have investigated the relationship between occupational and environmental agents and idiopathic pulmonary fibrosis (IPF). However, there have been few studies regarding the prognosis of patients with IPF according to patient occupation. METHODS We investigated whether occupational dust exposure was associated with clinically decreased lung function and poor prognosis. The Korean Interstitial Lung Disease Research Group conducted a national survey to evaluate the clinical, physiologic, radiologic, and survival characteristics of patients with IPF. A total of 1,311 patients with IPF were stratified into five groups according to their occupation: (1) unemployed or homemakers (n = 628); (2) farmers, fishers, or ranchers (n = 230); (3) sales or service personnel (n = 131); (4) clerical or professional personnel (n = 151); and (5) specific dust-exposed workers (n = 171). RESULTS The mean age of subjects at diagnosis, was 67.5 ± 9.7 years. Current smokers were 336 patients, 435 were exsmokers, and 456 were never smokers. Dust-exposed workers showed early onset of IPF (61.3 ± 8.6 years; P < .001) and a longer duration of symptoms at diagnosis (17.0 ± 28.2 months; P = .004). Aging (P = .001; hazard ratio [HR], 1.034; 95% CI, 1.014-1.054), FVC % predicted at diagnosis (P = .004; HR, 0.984; 95% CI, 0.974-0.995), and dust-exposure occupation (P = .033; HR, 1.813; 95% CI, 1.049-3.133) were associated with mortality. CONCLUSIONS These findings indicate that occupational dust may be an aggravating factor associated with a poor prognosis in IPF.
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Affiliation(s)
- Sang Hoon Lee
- Division of Pulmonary Medicine, Department of Internal Medicine, Yonsei University, College of Medicine, Yonsei University Health Service, Seoul
| | - Dong Soon Kim
- Division of Pulmonary and Critical Care Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul
| | - Young Whan Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine and Lung Institute, Seoul National University College of Medicine, Seoul
| | - Man Pyo Chung
- Division of Pulmonary and Critical Care Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - Soo Taek Uh
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul
| | - Choon Sik Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon
| | - Sung Hwan Jeong
- Division of Pulmonology, Department of Internal Medicine, Gachon University Gil Medical Center, Incheon
| | - Yong Bum Park
- Division of Pulmonary, Allergy & Critical Care Medicine, Department of Internal Medicine, Hallym University Kangdong Sacred Heart Hospital, Seoul
| | - Hong Lyeol Lee
- Pulmonary Division, Department of Internal Medicine, Inha University Hospital, Incheon
| | - Jeong Sup Song
- Pulmonary Division, Department of Internal Medicine, St. Mary's Hospital, Catholic University College of Medicine, Seoul
| | - Jong Wook Shin
- Division of Pulmonary Medicine, Department of Internal Medicine, Chung Ang University College of Medicine, Seoul
| | - Nam Soo Yoo
- Division of Pulmonary Medicine, National Medical Center, Seoul
| | - Eun Joo Lee
- Division of Respiratory and Critical Care Medicine, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul
| | - Jin Hwa Lee
- Department of Internal Medicine, Ewha Womans University School of Medicine, Ewha Medical Research Institute, Seoul
| | - Yangin Jegal
- Division of Pulmonary Medicine, Department of Internal Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan
| | - Hyun Kyung Lee
- Division of Critical Care and Pulmonary Medicine, Department of Internal Medicine, Inje University Busan Paik Hospital, Busan
| | - Moo Suk Park
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Yonsei University College of Medicine, Yonsei University Health System, Seoul, South Korea.
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Noh HJ, Seo Y, Huo SM, Kim TJ, Kim HL, Song JS. Idiopathic pleuroparenchymal fibroelastosis presenting in recurrent pneumothorax: a case report. Tuberc Respir Dis (Seoul) 2014; 77:184-7. [PMID: 25368665 PMCID: PMC4217035 DOI: 10.4046/trd.2014.77.4.184] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2013] [Revised: 04/02/2014] [Accepted: 07/02/2014] [Indexed: 12/02/2022] Open
Abstract
Idiopathic pleuroparenchymal fibroelastosis (PPFE) is a rare, recently classified entity that consists of pleural and subjacent parenchymal fibrosis predominantly in the upper lungs. In an official American Thoracic Society/European Respiratory Society statement in 2013, this disease is introduced as a group of rare idiopathic interstitial pneumonias. We describe a case of a 76-year-old woman with cough and recurrent pneumothorax. She was admitted to our hospital with severe cough at first. High resolution computed tomography (HRCT) disclosed multifocal subpleural consolidations with reticular opacities in both lungs, primarily in the upper lobes, suggesting interstitial pneumonia. Rheumatoid lung was diagnosed initially through an elevated rheumatoid factor, HRCT and surgical biopsy at the right lower lobe. However, one month later, pneumothorax recurred. Surgical biopsy was performed at the right upper lobe at this time. The specimens revealed typical subpleural fibroelastosis. We report this as a first case of idiopathic PPFE in Korea after reviewing the symptoms, imaging and pathologic findings.
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Affiliation(s)
- Hyun Jin Noh
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Yun Seo
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sol Mi Huo
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Tae Jung Kim
- Department of Pathology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyo Lim Kim
- Department of Radiology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jeong Sup Song
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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15
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Choi OK, Song JS, Cha DK, Lee JW. Biodiesel production from wet municipal sludge: evaluation of in situ transesterification using xylene as a cosolvent. Bioresour Technol 2014; 166:51-56. [PMID: 24905042 DOI: 10.1016/j.biortech.2014.05.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 04/26/2014] [Accepted: 05/02/2014] [Indexed: 06/03/2023]
Abstract
This study proposes a method to produce biodiesel from wet wastewater sludge. Xylene was used as an alternative cosolvent to hexane for transesterification in order to enhance the biodiesel yield from wet wastewater sludge. The water present in the sludge could be separated during transesterification by employing xylene, which has a higher boiling point than water. Xylene enhanced the biodiesel yield up to 8.12%, which was 2.5 times higher than hexane. It was comparable to the maximum biodiesel yield of 9.68% obtained from dried sludge. Xylene could reduce either the reaction time or methanol consumption, when compared to hexane for a similar yield. The fatty acid methyl esters (FAMEs) content of the biodiesel increased approximately two fold by changing the cosolvent from hexane to xylene. The transesterification method using xylene as a cosolvent can be applied effectively and economically for biodiesel recovery from wet wastewater sludge without drying process.
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Affiliation(s)
- O K Choi
- Program in Environmental Technology and Policy, Korea University, Sejong 339-700, Republic of Korea
| | - J S Song
- Department of Environmental Engineering, College of Science and Technology, Korea University, Sejong 339-700, Republic of Korea
| | - D K Cha
- Department of Civil and Environmental Engineering, University of Delaware, Newark, DE, USA
| | - J W Lee
- Program in Environmental Technology and Policy, Korea University, Sejong 339-700, Republic of Korea; Department of Environmental Engineering, College of Science and Technology, Korea University, Sejong 339-700, Republic of Korea.
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16
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Hwang HP, Yu HC, Park HS, Song JS, Kang KP, Kim W, Park SK, Lee S. Huge abdominal cyst occurred after kidney transplantation. Transplant Proc 2014; 46:657-8. [PMID: 24656039 DOI: 10.1016/j.transproceed.2013.11.059] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 11/22/2013] [Indexed: 11/19/2022]
Abstract
This case demonstrates continuous ambulatory peritoneal dialysis-related endometrial tissue migration and occurrence of huge cystic endometriosis by the recovery of menstrual period after kidney transplantation.
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Affiliation(s)
- H P Hwang
- Department of Surgery, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - H C Yu
- Department of Surgery, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - H S Park
- Department of Pathology, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - J S Song
- Department of Radiology, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - K P Kang
- Department of Internal Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - W Kim
- Department of Internal Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - S K Park
- Department of Internal Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - S Lee
- Department of Internal Medicine, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea.
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17
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Choi ST, Lee HW, Song JS, Lee SK, Park YB. Analysis of rheumatoid factor according to various hepatitis B virus infectious statuses. Clin Exp Rheumatol 2014; 32:168-173. [PMID: 24143967] [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] [Received: 05/03/2013] [Accepted: 09/09/2013] [Indexed: 06/02/2023]
Abstract
OBJECTIVES Rheumatoid factor (RF) can be seen in hepatitis B virus (HBV) infection. We investigated RF positive rates according to various HBV infectious statuses and vaccination, and the relationship between RF titers and serum HBV DNA levels. METHODS We examined 13,670 individuals who visited the Severance Hospital in Seoul, Korea, for a routine health check-up, and obtained serum samples from all individuals. RESULTS RF was positive in 3.5% of all subjects, and HBsAg was positive in 4.3%. HBsAg was positive in 21.7% of all RF positive subjects. RF was positive in 17.5% of the HBsAg positive group, while it was positive in 2.9% of the HBsAg negative group (p<0.001). The RF positive rate was increased in positive HBsAg, female sex, and older age. The RF positive rate was lower in those who had anti-HBs after HBV vaccination than in HBsAg positive subjects (2.7% vs. 17.5%, p<0.001). Among the RF positive patients, the RF titer in HBsAg positive patients were higher than that in HBsAg negative patients (159.7±217.1IU/mL vs. 83.0±179.2 IU/mL, p=0.001). The load of HBV DNA may be closely correlated with RF titer in patients with chronic hepatitis B (r=0.508, p=0.005). CONCLUSIONS Persistent HBV infection is an important cause for the positive RF in HBV endemic areas. Hepatitis B viral load is associated with RF titer. HBV vaccination may reduce the risk of RF formation.
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Affiliation(s)
- S T Choi
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, South Korea.
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18
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Song JS, Lee SH, Jin DK, Kim SH. A case report of rare XXY/XX mosaicism in a phenotypic male with Klinefelter syndrome and mediastinal germ cell tumor. Genet Couns 2014; 25:215-220. [PMID: 25059022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Klinefelter syndrome (KS) is a common sex chromosome disorder and is characterized by small, firm testes with hyalinization of the seminiferous tubules, elevated gonadotropins and azoospermia. Among karyotypic variants of KS, mosaicism 47,XXY/46,XX is extremely rare. We report here a case of an 18-year-old boy with a mosaic 47,XXY/46,XX karyotype of peripheral blood diagnosed as KS. The boy presented with anterior mediastinal mass which was confirmed as combined carvenous lymphangioma and mixed germ cell tumor by histologic examination of resected tissue. He had the male phenotype, however, azoospermia was incidentally detected on sperm banking analysis, performed prior to chemotherapy for mixed germ cell tumor. He had small and firm testes, mild gynecomastia, collectively tanner stage IV, mild hypergonadotropic hypogonadism and no evidence of true hermaphroditism. This report presents a rare case of mosaicism 47,XXY/46,XX karyotype in a phenotypic male with KS and mediastinal germ cell tumors. Based on what we experienced and review of the literature, cytogenetic analysis is recommended when physicians are confronted with a young patient with mediastinal germ cell tumor.
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19
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Yoon YA, Song JS, Lee SY, Yoon CE, Kang ES. The novel allele HLA-C*03:04:36 identified by sequence-based typing. ACTA ACUST UNITED AC 2013; 82:353-4. [PMID: 24102105 DOI: 10.1111/tan.12197] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 08/12/2013] [Indexed: 11/28/2022]
Abstract
The new allele, HLA-C*03:04:36, differs from C*03:04:01:01 by one nucleotide substitution at codon 207 (GGC→GGT).
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Affiliation(s)
- Y A Yoon
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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20
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Abstract
Thrombin activates protease-activated receptor (PAR)-1 and induces a myofibroblast phenotype in normal lung fibroblasts. The origins of myofibroblasts are resident fibroblasts, fibrocytes, and epithelial-mesenchymal transition (EMT). We investigated the effects of thrombin, an important mediator of interstitial lung fibrosis, on EMT in A549 human alveolar epithelial cells. We show that thrombin induced EMT and collagen I secretion through the activation of PAR-1, and PKC and ERK1/2 phosphorylation in A549 cells. These effects were largely prevented by a specific PAR-1 antagonist, short interfering RNA (siRNA) directed against PAR-1, or specific PKCα/β, δ, and ε inhibitors. These data indicated that interaction with thrombin and alveolar epithelial cells might directly contribute to the pathogenesis of pulmonary fibrosis through EMT. Targeting PAR-1 on the pulmonary epithelium or specific inhibitors to PKCα/β, δ, and ε might stop the fibrotic processes in human idiopathic pulmonary fibrosis by preventing thrombin-induced EMT.
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Affiliation(s)
- Jeong Sup Song
- Department of Internal Medicine, Yeouido St Mary's Hospital, Catholic University Medical College , Seoul, Korea
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21
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Oh BR, Song JS, Choi EH, Noh HK, Choe PG. P226: An engaged intervention to decrease central line-asssociated infections in the ICU. Antimicrob Resist Infect Control 2013. [PMCID: PMC3687756 DOI: 10.1186/2047-2994-2-s1-p226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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22
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Kang JY, Rhee CK, Kang NH, Kim JS, Yoon HK, Song JS. Clinical Utility of Two Interferon-gamma Release Assays on Pleural Fluid for the Diagnosis of Tuberculous Pleurisy. Tuberc Respir Dis (Seoul) 2012; 73:143-50. [PMID: 23166547 PMCID: PMC3492399 DOI: 10.4046/trd.2012.73.3.143] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 01/30/2012] [Accepted: 08/02/2012] [Indexed: 11/24/2022] Open
Abstract
Background The release of interferon-gamma (IFN-γ) by T lymphocytes increases after rechallenge with Mycobacterium tuberculosis antigen, especially, at a localized site of tuberculosis (TB) infection. We aimed to compare the clincial efficacy of two commercial IFN-γ release assays from pleural fluid for the diagnosis in tuberculous pleurisy. Methods We performed T-SPOT.TB and QuantiFERON-TB Gold tests simultaneously on pleural fluid and peripheral blood samples from patients with pleural effusion, in South Korea, an area with intermediate TB burden. Results Thirty-six patients were enrolled prospectively, and tuberculous pleurisy was found in 21 patients. Both the numbers of IFN-γ secreting T cells and the concentration of IFN-γ were greater in the pleural tuberculous group, comparing with the non-tuberculous group. Moreover, in the tuberculous group, there was a significant difference in IFN-γ producing spot-forming cells using the T-SPOT.TB method between pleural fluid and peripheral blood. The receiver operating characteristic (ROC) curve, was the greatest for pleural fluid T-SPOT.TB test, followed by peripheral blood T-SPOT.TB test, peripheral blood QuantiFERON-TB Gold test, and pleural fluid QuantiFERON-TB Gold test (area under the ROC curve of 0.956, 0.890, 0.743, and 0.721, respectively). The T-SPOT.TB assay produced less indeterminate results than did QuantiFERON-TB Gold assay in both pleural fluid and peripheral blood. Conclusion These findings suggest that the pleural fluid T-SPOT.TB test could be the most useful test among the IFN-γ release assays for diagnosing tuberculous pleurisy in an area with an intermediate prevalence of TB infection.
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Affiliation(s)
- Ji Young Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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23
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Song JS, Kang CM, Park CK, Yoon HK, Lee SY, Ahn JH, Moon HS. Inhibitory effect of receptor for advanced glycation end products (RAGE) on the TGF-β-induced alveolar epithelial to mesenchymal transition. Exp Mol Med 2012; 43:517-24. [PMID: 21743278 DOI: 10.3858/emm.2011.43.9.059] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is a lethal parenchymal lung disease characterized by myofibroblast proliferation. Alveolar epithelial cells (AECs) are thought to produce myofibroblasts through the epithelial to mesenchymal transition (EMT). Receptor for advanced glycation end products (RAGE) is a member of the immunoglobulin superfamily of cell surface receptors whose activation is associated with renal fibrosis during diabetes and liver fibrosis. RAGE is expressed at low basal levels in most adult tissues except the lung. In this study, we evaluated the interaction of ligand advanced glycation end products (AGE) with RAGE during the epithelial to myofibroblast transition in rat AECs. Our results indicate that AGE inhibited the TGF-β-dependent alveolar EMT by increasing Smad7 expression, and that the effect was abolished by RAGE siRNA treatment. Thus, the induction of Smad7 by the AGE-RAGE interaction limits the development of pulmonary fibrosis by inhibiting TGF-β-dependent signaling in AECs.
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Affiliation(s)
- Jeong Sup Song
- Department of Internal Medicine, Yeouido St. Mary's Hospital, The Catholic University of Korea, School of Medicine, Seoul 150-713, Korea.
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24
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Kim JG, Kim DW, Cho YH, Yim SM, Kang JH, Joo YB, Kang HH, Song JS, Yoon HK. A Case of Chronic Arthritis Due to Mycobacterium intracellulareafter Trauma. Tuberc Respir Dis (Seoul) 2012. [DOI: 10.4046/trd.2012.72.2.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Jae Gyung Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Dae Won Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Yul Hee Cho
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sun Mie Yim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Ju Hyun Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Young Bin Joo
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyeon Hui Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jeong Sup Song
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyoung Kyu Yoon
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Kim SK, Park CK, Lee SY, Song JS, Park SH, Kim YK. Effects of Rosiglitazone on the Expression of PPAR-γ and on the Production of IL-6 and IL-8 in Acute Lung Injury Model Using Human Pulmonary Epithelial Cells. TROP J PHARM RES 2011. [DOI: 10.4314/tjpr.v10i6.5] [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: 11/17/2022] Open
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26
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Kim SK, Park CK, Lee SY, Song JS, Park SH, Kim YK. Effects of Rosiglitazone on the Expression of PPAR-γ and the Production of IL-6 and IL-8 in Acute Lung Injury Model Using Human Pulmonary Epithelial Cells. TROP J PHARM RES 2011. [DOI: 10.4314/tjpr.v10i5.4] [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: 11/17/2022] Open
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27
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Kim SK, Kang HH, Kim JS, Lee SH, Ahn JH, Kwon SS, Kim YK, Moon HS, Song JS, Kim CH. Predicting Factors for Failure of Medical Treatment in Patients With Complicated Parapneumonic Effusion or Empyema. Chest 2011. [DOI: 10.1378/chest.1117927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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28
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Song JS, Kang CM. Inhibition of Plasminogen Activator Inhibitor-1 Expression in Smoke-Exposed Alveolar Type II Epithelial Cells Attenuates Epithelial-Mesenchymal Transition. Tuberc Respir Dis (Seoul) 2011. [DOI: 10.4046/trd.2011.70.6.462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Affiliation(s)
- Jeong Sup Song
- Department of Internal Medicine, Yeouido St Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Chun Mi Kang
- Department of Internal Medicine, Yeouido St Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Korea
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Park CK, Kim CH, Ahn JH, Kwon SS, Kim YK, Kim KH, Moon HS, Song JS, Park SH. Clinical Features of Radiologic Improved Pneumonia by Steroid Therapy. Chest 2010. [DOI: 10.1378/chest.10622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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30
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Song JS, Kang CM, Kang HH, Yoon HK, Kim YK, Kim KH, Moon HS, Park SH. Inhibitory effect of CXC chemokine receptor 4 antagonist AMD3100 on bleomycin induced murine pulmonary fibrosis. Exp Mol Med 2010; 42:465-72. [PMID: 20498529 DOI: 10.3858/emm.2010.42.6.048] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
CXC chemokine receptor 4 (CXCR4), which binds the stromal cell-derived factor-1 (SDF-1), has been shown to play a critical role in mobilizing the bone marrow (BM)-derived stem cells and inflammatory cells. We studied the effects of AMD3100, CXCR4 antagonist, on a murine bleomycin-induced pulmonary fibrosis model. Treatment of mice with AMD3100 in bleomycin-treated mice resulted in the decrease of SDF-1 in bronchoalveolar lavage (BAL) fluids at an early stage and was followed by the decrease of fibrocytes in the lung. AMD3100 treatment decreased the SDF-1 mRNA expression, fibrocyte numbers in the lung at an early stage (day 3) and CXCR4 expression at the later stage (day 7 and 21) after bleomycin injury. The collagen content and pulmonary fibrosis were significantly attenuated by AMD3100 treatment in later stage of bleomycin injury. AMD3100 treatment also decreased the murine mesenchymal and hematopoietic stem cell chemotaxis when either in the stimulation with bleomycin treated lung lysates or SDF-1 in vitro. In BM stem cell experiments, the phosphorylation of p38 MAPK which was induced by SDF-1 was significantly blocked by addition of AMD3100. Our data suggest that AMD3100 might be effective in preventing the pulmonary fibrosis by inhibiting the fibrocyte mobilization to the injured lung via blocking the SDF-1/CXCR4 axis.
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Affiliation(s)
- Jeong Sup Song
- Pulmonology Division, Department of Internal Medicine, St. Mary's Hospital, Catholic University College of Medicine, Seoul 150-713, Korea.
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31
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Rhee CK, Lee SH, Kim JS, Kim SJ, Kim SC, Kim YK, Kang HH, Yoon HK, Song JS, Moon HS, Kim JW, Kim CH, Shim BY, Kim HK, Sun DS, Kim KH. A multicenter phase II study of belotecan, a new camptothecin analogue, as a second-line therapy in patients with small cell lung cancer. Lung Cancer 2010; 72:64-7. [PMID: 20832894 DOI: 10.1016/j.lungcan.2010.07.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Revised: 07/01/2010] [Accepted: 07/11/2010] [Indexed: 11/29/2022]
Abstract
Belotecan (Camtobell, CKD602) is a new camptothecin derivative antitumor agent that belongs to the topoisomerase inhibitors. The aim of this phase II study was to evaluate the efficacy and safety of single agent belotecan as a second-line therapy in patients with small cell lung cancer (SCLC). Patients who were previously treated for SCLC were entered into the study. Belotecan was given by daily intravenous infusion for five consecutive days, every three weeks. Twenty-five patients were enrolled in this study. On an intention-to-treat basis, belotecan induced an overall response rate of 24%, a median overall survival of 9.9 months, a median time to progression of 2.2 months, and a 1-year survival rate of 38.3%. Grade 3/4 neutropenia developed in 88.0% of patients and grade 3/4 thrombocytopenia in 40.0%. Nonhematologic toxicity of grade 3 or 4 was low. The results suggest that belotecan is relatively active and well tolerated as a second-line agent in patients with SCLC.
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Affiliation(s)
- Chin Kook Rhee
- Division of Pulmonology, Department of Internal Medicine, St Mary's Hospital, The Catholic University of Korea, Republic of Korea
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Kang JY, Kim JW, Kim JS, Kim SJ, Lee SH, Kwon SS, Kim YK, Moon HS, Song JS, Park SH, Lee SY. Inhibitory effects of anti-immunoglobulin E antibodies on airway remodeling in a murine model of chronic asthma. J Asthma 2010; 47:374-80. [PMID: 20528589 DOI: 10.3109/02770901003801972] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Airway remodeling is one of the cardinal features of asthma and is thought to play a pivotal role in refractory or persistent asthma. Immunoglobulin E (IgE) has a major effect on the pathogenesis of asthma. The aim of this study was to investigate the effects of anti-IgE antibody not only on airway inflammation and bronchial hyperresponsiveness, but also on airway remodeling in a murine model of chronic asthma. METHODS The authors developed a mouse model of chronic asthma in which ovalbumin (OVA)-sensitized female BALB/c-mice were exposed to intranasal OVA administration twice a week for 3 months. Anti-IgE antibodies were administered intravenously starting on the 38th day and once a month thereafter for 3 months during the intranasal OVA challenge. RESULTS Mice that were chronically exposed to OVA developed sustained eosinophilic airway inflammation and airway hyperresponsiveness (AHR) to methacholine and showed increased levels of collagen, hydroxyproline, and alpha-smooth muscle actin, as compared with control mice. Treatment with anti-IgE antibody inhibited the development of AHR, eosinophilic inflammation, and airway remodeling. Moreover, anti-IgE antibody treatment reduced the levels of interleukin (IL)-5 and IL-13 in the bronchoalveolar lavage fluids, although it did not affect the levels of IL-10, transforming growth factor-beta, and activin A. CONCLUSION These results suggest that anti-IgE antibody treatment modulates the airway inflammation and remodeling associated with chronic allergen challenge. The inhibition of inflammation may be related to the regulation of Th2 cytokines. However, the mechanisms underlying the blocking of airway remodeling by anti-IgE antibody remain to be elucidated.
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Affiliation(s)
- Ji Young Kang
- Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seoul, Korea
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Song JS, Kang CM, Rhee CK, Yoon HK, Kim YK, Moon HS, Park SH. EFFECTS OF ELASTASE INHIBITOR ON THE EPITHELIAL CELL APOPTOSIS IN BLEOMYCIN-INDUCED PULMONARY FIBROSIS. Exp Lung Res 2009; 35:817-29. [DOI: 10.3109/01902140902912527] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [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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Rhee CK, Kang JY, Kim YH, Kim JW, Yoon HK, Kim SC, Kwon SS, Kim YK, Kim KH, Moon HS, Park SH, Kim HJ, Lee S, Song JS. Risk factors for acute respiratory distress syndrome during neutropenia recovery in patients with hematologic malignancies. Crit Care 2009; 13:R173. [PMID: 19886984 PMCID: PMC2811915 DOI: 10.1186/cc8149] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2009] [Revised: 09/02/2009] [Accepted: 11/03/2009] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Neutropenia recovery may be associated with deterioration in oxygenation and exacerbation of pre-existing pulmonary disease. However, risk factors for acute respiratory distress syndrome (ARDS) during neutropenia recovery in patients with hematologic malignancies have not been studied. METHODS We studied critically ill patients with hematologic malignancies with the dual objectives of describing patients with ARDS during neutropenia recovery and identifying risk factors for ARDS during neutropenia recovery. A cohort of consecutive neutropenic patients with hematologic malignancies who were admitted to the intensive care unit (ICU) was studied. During a 6-year period, 71 patients recovered from neutropenia, of whom 38 (53.5%) developed ARDS during recovery. RESULTS Compared with non-ARDS patients, patients who experienced ARDS during neutropenia recovery were more likely to have pneumonia, be admitted to the ICU for respiratory failure, and receive mechanical ventilator therapy. The in-ICU mortality was significantly different between the two groups (86.8% versus 51.5%, respectively, for patients who developed ARDS during neutropenia recovery versus those who did not during neutropenia recovery). In multivariate analysis, only occurrence of pneumonia during the neutropenic episode was associated with a marked increase in the risk of ARDS (odds ratio, 4.76). CONCLUSIONS Patients with hematologic malignancies complicated by pneumonia during neutropenia are at increased risk for ARDS during neutropenia recovery.
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Affiliation(s)
- Chin Kook Rhee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, College of Medicine, Catholic University of Korea, Seocho-Gu, Seoul 137-701, Korea.
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Nam HS, Lee SY, Kim SJ, Kim JS, Kwon SS, Kim YK, Kim KH, Moon HS, Song JS, Park SH, Kim SC. The soluble tumor necrosis factor-alpha receptor suppresses airway inflammation in a murine model of acute asthma. Yonsei Med J 2009; 50:569-75. [PMID: 19718408 PMCID: PMC2730622 DOI: 10.3349/ymj.2009.50.4.569] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2008] [Revised: 01/15/2009] [Accepted: 01/23/2009] [Indexed: 11/27/2022] Open
Abstract
PURPOSE Tumor necrosis factor-alpha (TNF-alpha) is a proinflammatory cytokine that has been implicated in many aspects of the airway pathology in asthma. TNF-alpha blocking strategies are now being tried in asthma patients. This study investigated whether TNF-alpha blocking therapy inhibits airway inflammation and airway hyperresponsiveness (AHR) in a mouse model of asthma. We also evaluated the effect of TNF-alpha blocking therapy on cytokine production and adhesion molecule expression. MATERIALS AND METHODS Ovalbumin (OVA) sensitized BALB/c female mice were exposed to intranasal OVA administration on days 31, 33, 35, and 37. Mice were treated intraperitoneally with soluble TNF-alpha receptor (sTNFR) during the OVA challenge. RESULTS There were statistically significant decreases in the numbers of total cell and eosinophil in bronchoalveolar lavage fluid (BALF) in the sTNFR treated group compared with the OVA group. However, sTNFR-treatment did not significantly decrease AHR. Anti-inflammatory effect of sTNFR was accompanied with reduction of T helper 2 cytokine levels including interleukin (IL)-4, IL-5 and IL-13 in BALF and vascular cell adhesion molecule 1 expression in lung tissue. CONCLUSION These results suggest that sTNFR treatment can suppress the airway inflammation via regulation of Th2 cytokine production and adhesion molecule expression in bronchial asthma.
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Affiliation(s)
- Hae-Seong Nam
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sook Young Lee
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seung Jun Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ju Sang Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Soon Seog Kwon
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Young Kyoon Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kwan Hyung Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hwa Sik Moon
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jeong Sup Song
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Hak Park
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seok Chan Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kim SJ, Kim JS, Kim SC, Kim YK, Kim YK, Kang JY, Yoon HK, Song JS, Lee SH, Moon HS, Kim JW, Kim KH, Kim CH, Shim BY, Kim HK. A multicenter phase II study of belotecan, new camptothecin analogue, in patients with previously untreated extensive stage disease small cell lung cancer. Lung Cancer 2009; 68:446-9. [PMID: 19683359 DOI: 10.1016/j.lungcan.2009.07.002] [Citation(s) in RCA: 15] [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] [Received: 01/29/2009] [Revised: 06/26/2009] [Accepted: 07/04/2009] [Indexed: 10/20/2022]
Abstract
Belotecan (Camtobell, CKD602) is a new camptothecin derivative antitumor agent that belongs to the topoisomerase inhibitors. The aim of this phase II study was to evaluate the efficacy and safety of single agent belotecan in patients with small cell lung cancer (SCLC). Patients with previously untreated extensive stage disease (ED) SCLC were entered into the study. Belotecan was given by daily intravenous infusion at 0.5mg/m(2)/day for 5 consecutive days, every 3 weeks. 62 patients were enrolled in this study. The overall response rate to chemotherapy on an intention-to-treat basis was 53.2%. The median overall survival was 10.4 months, the median time to progression 4.6 months, and the 1-year survival rate 49.9%. The most common toxicity was hematologic. Grade 3/4 neutropenia occurred in 71.0% of patients and grade 3/4 thrombocytopenia 12.9%. Non-hematologic toxicity of grade 3 or 4 was low. The results suggest that belotecan is relatively active and well tolerable as single agent in patients with ED SCLC. Further investigations with platinum or other active agents are needed.
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Affiliation(s)
- S J Kim
- Division of Pulmonology, Department of Internal Medicine, Kangnam St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
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Song JS, Jang SJ, Lee JJ, Lee JH, Bae IK, Jeong BC, Cha SS, Lee JH, Hong SK, Lee SH. Association of the bla(CMY-10) gene with a novel complex class 1 integron carrying an ISCR1 element in clinical isolates from Korea. Clin Microbiol Infect 2009; 16:1013-7. [PMID: 19681956 DOI: 10.1111/j.1469-0691.2009.03002.x] [Citation(s) in RCA: 5] [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: 11/26/2022]
Abstract
The bla(CMY-10) gene responsible for β-lactam resistance was located on a new complex class 1 integron within a conjugative plasmid. The sul1-type class 1 integron, containing an aadA2a gene cassette, was identified upstream of bla(CMY-10). A unique gene array (yqgF-yqgE-gshB-orf97--orf105) was identified downstream of bla(CMY-10.).
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Affiliation(s)
- J S Song
- Department of Biological Sciences, Drug Resistance Proteomics Laboratory, Myongji University, Yongin, Gyeonggido, Korea
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Lee JW, Cha DK, Oh YK, Ko KB, Song JS. Zero-valent iron pretreatment for detoxifying iodine in liquid crystal display (LCD) manufacturing wastewater. J Hazard Mater 2009; 164:67-72. [PMID: 18799266 DOI: 10.1016/j.jhazmat.2008.07.147] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Revised: 07/28/2008] [Accepted: 07/28/2008] [Indexed: 05/26/2023]
Abstract
This study investigated reductive transformation of iodine by zero-valent iron (ZVI), and the subsequent detoxification of iodine-laden wastewater. ZVI completely reduced aqueous iodine to non-toxic iodide. Respirometric bioassay illustrated that the presence of iodine increase the lag phase before the onset of oxygen consumption. The length of lag phase was proportional to increasing iodine dosage. The reduction products of iodine by ZVI did not exhibit any inhibitory effect on the biodegradation. The cumulative biological oxidation associated with iodine toxicity was closely fitted to Gompertz model. When iodine-laden wastewater was continuously fed to a bench-scale activated sludge unit, chemical oxygen demand (COD) removal efficiencies decreased from above 90% to below 80% along with a marked decrease in biomass concentration. On the other hand, the COD removal efficiency and biomass concentration remained constant in the integrated ZVI-activated sludge system. Respirometric bioassay with real iodine-laden LCD manufacturing wastewater demonstrated that ZVI was effective for detoxifying iodine and consequently enhancing biodegradability of wastewater. This result suggested that ZVI pretreatment may be a feasible option for the removal of iodine in LCD processing wastewater, instead of more costly processes such as adsorption and chemical oxidation, which are commonly in the iodine-laden LCD wastewater treatment facility.
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Affiliation(s)
- J W Lee
- Department of Environmental Engineering, College of Science and Technology, Korea University, Jochiwon-eup, Yeongi-gun, Chungnam 339-700, Republic of Korea.
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Chung ES, Kim JH, Jung JH, Shin JY, Yeom JO, Kang JY, Yoon HK, Song JS. A Case of Pulmonary Thromboembolism in Crohn's Disease. Tuberc Respir Dis (Seoul) 2009. [DOI: 10.4046/trd.2009.66.5.370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Affiliation(s)
- Eui-Sung Chung
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jeong-Ho Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jin-Hwan Jung
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Ju-Young Shin
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Ju Ok Yeom
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Ji Young Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyoung-Kyu Yoon
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jeong Sup Song
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Kang JY, Jung JI, Lee KY, Kim TJ, Lee JW, Lee WH, Chung HS, Yoon HK, Song JS. A Case of Idiopathic Bronchiolocentric Interstitial Pneumonia. Tuberc Respir Dis (Seoul) 2009. [DOI: 10.4046/trd.2009.66.3.230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Ji Young Kang
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jung Im Jung
- Department of Radiology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kyo-Young Lee
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Tae-Jung Kim
- Department of Hospital Pathology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jung-Woo Lee
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Wook-Hyun Lee
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hui Sung Chung
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyoung Kyu Yoon
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jeong Sup Song
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kim SK, Lee SH, Kang HH, Kang JY, Kim JW, Kim YK, Kim KH, Song JS, Park SH, Moon HS. Relationship between Arousal Indices and Clinical Manifestations in Patients Who Performed Polysomnography. Tuberc Respir Dis (Seoul) 2009. [DOI: 10.4046/trd.2009.67.3.183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Sung Kyoung Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sang Haak Lee
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyeon Hui Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Ji Young Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jin Woo Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Young Kyoon Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Kwan Hyoung Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jeong Sup Song
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sung Hak Park
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hwa Sik Moon
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Abstract
Fudosteine is a novel mucoactive agent, although little is known about how fudosteine decreases mucin production. The present study examined the effects of fudosteine on MUC5AC mucin synthesis and cellular signalling. An animal model of lipopolysaccharide (LPS)-induced inflammation and a bronchial epithelial cell line model of tumour necrosis factor (TNF)-alpha-induced inflammation were used. Fudosteine was administered before stimulation with LPS or TNF-alpha. The MUC5AC mucin levels were assayed and the expression of the MUC5AC gene was measured. Western blotting was carried out for the detection of phosphorylated epidermal growth factor receptor (p-EGFR), phosphorylated p38 mitogen-activated protein kinase (p-p38 MAPK) and phosphorylated extracellular signal-related kinase (p-ERK). MUC5AC mucin synthesis and the expression of the MUC5AC gene were increased by LPS in rats or TNF-alpha in NCI-H292 cells; these effects were inhibited by fudosteine treatment. After stimulation with LPS or TNF-alpha, the expression of p-EGFR, p-p38 MAPK and p-ERK were detected. Fudosteine treatment reduced the expression levels of p-p38 MAPK and p-ERK in vivo and of p-ERK in vitro. The present results suggest fudosteine inhibits MUC5AC mucin hypersecretion by reducing MUC5AC gene expression and the effects of fudosteine are associated with the inhibition of extracellular signal-related kinase and p38 mitogen-activated protein kinase in vivo and extracellular signal-related kinase in vitro.
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Affiliation(s)
- C K Rhee
- Dept of Internal Medicine, St Mary's Hospital, The Catholic University Medical College, #62 Yeoi-Do Dong, Young Dung Po Gu, Seoul, Korea
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Song JS, Huh KH, Park J, Ju MK, Kim MS, Kim YS. Effects of inosine monophosphate dehydrogenase inhibition on high glucose-induced cellular reactive oxygen species in mesangial cells. Transplant Proc 2008; 40:464-6. [PMID: 18374103 DOI: 10.1016/j.transproceed.2008.01.016] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Mesangial cell extracellular matrix (ECM) synthesis plays an important role in chronic renal diseases including chronic renal allograft dysfunction and diabetic nephropathy. Although inosine monophosphate dehydrogenase 2 (IMPDH2), as a target of mycophenolic acid (MPA), is important for de novo guanosine synthesis in lymphocytes, mesenchymal cells are not wholly dependent on it. To explore the importance of IMPDH2 on the inhibitory effects of MPA in mesangial cells (MC), we compared the effects of MPA and IMPDH2 siRNA on high glucose (HG)-induced fibronectin secretion and cellular reactive oxygen species (ROS). Mouse mesangial cells (MMC) were stimulated with HG (30 mmol/L D-glucose) in the presence or absence of MPA pretreatment or IMPDH2 siRNA transfection. Fibronectin secretion was measured by Western blot analysis, and dichlorofluorescein (DCF)-sensitive cellular ROS assessed by flow cytometry. HG increased fibronectin secretion by 1.8-fold at 24 hours and DCF-sensitive cellular ROS by 1.5-fold at 1 hour. MPA at 10 micromol/L totally inhibited HG-induced fibronectin secretion and cellular ROS in MMC. However, IMPDH2 siRNA only partially suppressed HG-induced fibronectin secretion and cellular ROS. These results suggested that MPA may inhibit HG-induced fibronectin secretion partially through inhibiting cellular ROS and the inhibition of IMPDH2 may be partially involved in the mechanism of MPA.
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Affiliation(s)
- J S Song
- Research Institute for Transplantation, Seoul, Korea
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Cha EY, Kim KW, Choi YJ, Song JS, Cho KJ, Lee MG. Multicystic cavernous haemangioma of the liver: ultrasonography, CT, MR appearances and pathological correlation. Br J Radiol 2008; 81:e37-9. [PMID: 18238911 DOI: 10.1259/bjr/36041107] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Among the hepatic haemangiomas with atypical features when studied radiologically, the multicystic type is extremely rare. We report a case of multicystic hepatic haemangioma in a 62-year-old woman, which was found incidentally during ultrasound screening. Because the tumour showed atypical features on ultrasonography, CT and MRI, the correct diagnosis was not made until the surgery. In this report, the atypical radiological findings are illustrated and correlated with pathological findings.
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Affiliation(s)
- E-Y Cha
- Department of Radiology and Research Institution of Radiology, University of Ulsan College of Medicine-Asan Medical Centre, 388-1 Pungnap-2 dong, Songpa-gu, Seoul 138-736, Korea
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No JH, Kang JY, Lee BH, Kim YJ, Lee JE, Min JS, Kang MK, Kim KH, Yoon HK, Song JS. A Case of Tuberculosis-associated Hemophagocytic Syndrome during Antituberculosis Medication for Tuberculous Pericarditis. Tuberc Respir Dis (Seoul) 2008. [DOI: 10.4046/trd.2008.65.6.522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Jin Hee No
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Ji Young Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Bo Hee Lee
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Yun Ji Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jung Eun Lee
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jin Soo Min
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Min Kyu Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Kyung Hee Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyoung Kyu Yoon
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jeong Sup Song
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Kim JE, Lee HJ, Rhee CK, Yoon HK, Song JS. A Case of Erdheim-Chester Disease Who Has Policythemia Vera. Tuberc Respir Dis (Seoul) 2008. [DOI: 10.4046/trd.2008.64.3.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Ji Eun Kim
- Division of Pulmonary Medicine, St. Mary's Hospital, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyun Jeong Lee
- Division of Pulmonary Medicine, St. Mary's Hospital, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Chin Kook Rhee
- Division of Pulmonary Medicine, St. Mary's Hospital, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyung Kyu Yoon
- Division of Pulmonary Medicine, St. Mary's Hospital, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jeong Sup Song
- Division of Pulmonary Medicine, St. Mary's Hospital, Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Jeon EK, Chung MK, Kim GM, Kang JY, Park HJ, Kim SJ, Lee SY, Moon HS, Song JS, Park SH, Kim YK. A Case of Chronic Expanding Hematoma with Initial Presentation as Massive Hemotpysis through Bronchopleural Fistula in the Thorax. Tuberc Respir Dis (Seoul) 2008. [DOI: 10.4046/trd.2008.64.1.48] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Eun Kyoung Jeon
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Mun Kyung Chung
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Gun Min Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Ji Young Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hyun Jin Park
- Department of Radiology, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Seung Joon Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sook Young Lee
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hwa Sik Moon
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jeong Sup Song
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sung Hak Park
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Young Kyoon Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
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Kim SJ, Kang CM, You MB, Yoon HK, Kim YK, Kim KH, Moon HS, Park SH, Song JS. IP-10 Decreases TNF-α Induced MUC5AC Expression in Human Airway Epithelial Cells: a Possible Relation with Little Sputum Production in Idiopathic Pulmonary Fibrosis. Tuberc Respir Dis (Seoul) 2008. [DOI: 10.4046/trd.2008.64.5.347] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Seung Joon Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chun Mi Kang
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Moon Bin You
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyung Kyu Yoon
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Young Kyoon Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kwan Hyoung Kim
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hwa Sik Moon
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Hak Park
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jeong Sup Song
- Division of Pulmonology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Kim SJ, Lee JM, Kim JS, Kang JY, Lee SH, Kim SC, Lee SY, Kim CH, Ahn JH, Kwon SS, Kim YK, Kim KH, Moon HS, Song JS, Park SH, Moon SH, Wang YP. Prognostic Value of Vascular Endothelial Growth Factor (VEGF) and Basic Fibroblast Growth Factor (bFGF) Expression in Resected Non-small Cell Lung Cancer. Tuberc Respir Dis (Seoul) 2008. [DOI: 10.4046/trd.2008.64.3.200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Seung Joon Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jung Mi Lee
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jin Sook Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Ji Young Kang
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sang Hak Lee
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Seok Chan Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sook Young Lee
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Chi Hong Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Joong Hyun Ahn
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Soon Seog Kwon
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Young Kyoon Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Kwan Hyoung Kim
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Hwa Sik Moon
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Jeong Sup Song
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Sung Hak Park
- Department of Internal Medicine, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Seok Hwan Moon
- Department of Thoracic and Cardiovascular Surgery, The Catholic University of Korea College of Medicine, Seoul, Korea
| | - Yeong Pil Wang
- Department of Thoracic and Cardiovascular Surgery, The Catholic University of Korea College of Medicine, Seoul, Korea
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Ahn JH, Kim CH, Kim YH, Kim SJ, Lee SY, Kim YK, Kim KH, Moon HS, Song JS, Park SH, Kwon SS. Inflammatory and remodeling events in asthma with chronic exposure to house dust mites: a murine model. J Korean Med Sci 2007; 22:1026-33. [PMID: 18162718 PMCID: PMC2694629 DOI: 10.3346/jkms.2007.22.6.1026] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Although animal models with ovalbumin have been used to study chronic asthma, there are difficulties in inducing recurrence as well as in maintaining chronic inflammation in this system. Using a murine model of house dust mite (HDM)-induced bronchial asthma, we examined the airway remodeling process in response to the chronic exposure to HDM. During the seventh and twelfth weeks of study, HDM were inhaled through the nose for three consecutive days and airway responsiveness was measured. Twenty-four hours later, bronchoalveolar lavage and histological examination were performed. The degree of overproduction of mucus, subepithelial fibrosis, and the thickness of the peribronchial smooth muscle in the experimental group was clearly increased compared to the control group. In addition, HDM-exposed mice demonstrated severe airway hyperreactivity to methacholine. In the bronchoalveolar lavage fluid, the number of total cells and eosinophils was increased; during the twelfth week, the number of neutrophils increased in the experimental group. With regard to changes in cytokines, the concentrations of IL-4, IL- 13, and transforming growth factor-beta (TGF-beta) were increased in the experimental group. The data suggest that eosinophils, IL-4, IL-13, and TGF-beta might play an important role in the airway remodeling process and that neutrophils may be involved with increased exposure time.
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Affiliation(s)
- Joong Hyun Ahn
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Chi Hong Kim
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Yong Hyun Kim
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Seung Joon Kim
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Sook-Young Lee
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Young Kyoon Kim
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Kwan Hyoung Kim
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Hwa Sik Moon
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Jeong Sup Song
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Sung Hak Park
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
| | - Soon Seog Kwon
- Department of Internal Medicine, The Catholic University of Korea, College of Medicine, Seoul, Korea
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