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Park J, Yoon JS. Cutaneous Serratia marcescens infection in two dogs. J Small Anim Pract 2024; 65:270-273. [PMID: 38332607 DOI: 10.1111/jsap.13709] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/19/2023] [Accepted: 01/17/2024] [Indexed: 02/10/2024]
Abstract
We describe two canine cases of cutaneous infection caused by Serratia marcescens. A 2-year-old castrated male mixed dog (Case 1) presented with multiple ulcerations on the dorsal trunk, which were observed 4 days after shampooing. A 4-year-old male wolf shepherd mix dog (Case 2) presented with ulceration and purulent discharge on the nasal bridge. Cytological examination of both cases revealed pyogranulomatous inflammatory cells with rod-like infectious agents identified as S. marcescens in aerobic bacterial culture. Both patients were treated with oral antibiotics and topical chlorhexidine. Case 1 received enrofloxacin 10 mg/kg once daily for 1 week, followed by trimethoprim/sulfamethoxazole 15 mg/kg twice daily for 3 weeks. Case 2 received doxycycline 10 mg/kg twice daily for 4 weeks. No skin lesions were detected 2 weeks after the initial administration. The antibiotics were discontinued after a total 4 weeks of administration, and the skin lesions did not reappear.
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Affiliation(s)
- J Park
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Korea
| | - J S Yoon
- Department of Veterinary Dermatology, College of Veterinary Medicine, Jeonbuk National University, Iksan, Korea
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Kim TJ, Lee JS, Yoon JS, Oh MS, Kim JW, Park SH, Yu KH, Lee BC, Ko SB, Yoon BW. The impact of statin treatment duration on the risk of new-onset diabetes mellitus and recurrent vascular events in ischemic stroke patients: a linked data analysis. Cerebrovasc Dis 2024:000538485. [PMID: 38527440 DOI: 10.1159/000538485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 03/19/2024] [Indexed: 03/27/2024] Open
Abstract
INTRODUCTION Although statin therapy reduces cardiovascular events, statin use is associated with the risk of new-onset diabetes mellitus (NODM). Using a linked dataset, we evaluated the effect of statin treatment on vascular outcomes and NODM development in patients with ischemic stroke. METHODS From the dataset, we identified 20,250 patients with acute ischemic stroke who had neither a prior history of DM nor a previous history of statin use before the index stroke. Patients were divided into statin users and non-users. The outcomes were NODM and vascular outcomes, including recurrent ischemic stroke and acute myocardial infarction (AMI). RESULTS Of the 20,250 patients, 13,706 (67.7%) received statin treatment after the index stroke. For the risk of NODM, a time-response relationship was observed between the use of statins and NODM; a longer post-stroke follow-up duration substantially increased the risk of NODM. Among those with ischemic stroke exceeding 3 years, statin users had an approximately 1.7-fold greater risk of NODM than statin non-users. Statin therapy significantly reduced the risk of recurrent ischemic stroke by 54% (HR 0.46, 95% CI, 0.43-0.50, P < 0.001) across all stroke subtypes. CONCLUSION Statin therapy following ischemic stroke increased the occurrence of NODM in patients over a period of 3 years. Despite the increased risk of NODM, statin therapy shows a beneficial effect in reducing major cardiovascular events such as recurrent ischemic stroke and AMI in patients with ischemic stroke.
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Kim TJ, Lee JS, Yoon JS, Park SH, Oh MS, Jung KH, Yu KH, Lee BC, Ko SB, Yoon BW. Multiple Antiplatelet Therapy in Ischemic Stroke Already on Antiplatelet Agents Based on the Linked Big Data for Stroke. J Korean Med Sci 2023; 38:e294. [PMID: 37750368 PMCID: PMC10519784 DOI: 10.3346/jkms.2023.38.e294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Accepted: 05/31/2023] [Indexed: 09/27/2023] Open
Abstract
BACKGROUND Optimal antiplatelet strategy for patients with ischemic stroke who were already on single antiplatelet therapy (SAPT) remains to be elucidated. This study aimed to evaluate the effect of different antiplatelet regimens on vascular and safety outcomes at 1 year after non-cardioembolic stroke in patients previously on SAPT. METHODS We identified 9,284 patients with acute non-cardioembolic ischemic stroke that occurred on SAPT using linked data. Patients were categorized into three groups according to antiplatelet strategy at discharge: 1) SAPT; 2) dual antiplatelet therapy (DAPT); and 3) triple antiplatelet therapy (TAPT). One-year outcomes included recurrent ischemic stroke, composite outcomes (recurrent ischemic stroke, myocardial infarction, intracerebral hemorrhage, and death), and major bleeding. RESULTS Of 9,284 patients, 5,565 (59.9%) maintained SAPT, 3,638 (39.2%) were treated with DAPT, and 81 (0.9%) were treated with TAPT. Multiple antiplatelet therapy did not reduce the risks of 1-year recurrent stroke (DAPT, hazard ratio [HR], 1.08, 95% confidence interval [CI], 0.92-1.27, P = 0.339; TAPT, HR, 0.71, 95% CI, 0.27-1.91, P = 0.500) and 1-year composite outcome (DAPT, HR, 1.09, 95% CI, 0.68-1.97, P = 0.592; TAPT, HR, 1.46, 95% CI, 0.68-1.97, P = 0.592). However, the TAPT groups showed an increased risk of major bleeding complications (DAPT, HR, 1.23, 95% CI, 0.89-1.71, P = 0.208; TAPT, HR, 4.65, 95% CI, 2.01-10.74, P < 0.001). CONCLUSION Additional use of antiplatelet agents in patients with non-cardioembolic ischemic stroke who were already on SAPT did not reduce the 1-year incidence of vascular outcomes, although it increased the risk of bleeding complications.
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Affiliation(s)
- Tae Jung Kim
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
| | - Ji Sung Lee
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Sun Yoon
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
| | - Soo-Hyun Park
- Department of Neurology, Gangdong Sacred Heart Hospital, Seoul, Korea
| | - Mi Sun Oh
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Keun-Hwa Jung
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
| | - Kyung-Ho Yu
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Byung-Chul Lee
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Sang-Bae Ko
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea.
| | - Byung-Woo Yoon
- Department of Neurology, Uijeongbu Eulji Medical Center, Uijeongbu, Korea
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Kim TJ, Lee JS, Yoon JS, Oh MS, Kim JW, Park SH, Jung KH, Kim HY, Kwon JH, Choi HY, Kim HY, Eah KY, Han SW, Oh HG, Kim YJ, Shin BS, Kim CH, Kim CK, Park JM, Lee KB, Park TH, Lee J, Park MS, Choi JC, Kim C, Shin DI, Lee SJ, Kim DE, Cha JK, Kim EG, Yu KH, Hong KS, Lee YS, Lee JH, Sohn SI, Bae HJ, Lee YB, Lee JH, Rha JH, Lee BC, Chang DI, Ko SB, Yoon BW. Optimal use of antithrombotic agents in ischemic stroke with atrial fibrillation and large artery atherosclerosis. Int J Stroke 2023:17474930231158211. [PMID: 36748980 DOI: 10.1177/17474930231158211] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Optimal antithrombotic regimens to prevent recurrent stroke in patients with ischemic stroke due to atrial fibrillation (AF) and atherosclerotic large-vessel stenosis remain unknown. AIMS This study aimed to evaluate the effect of multiple antithrombotic therapies on outcomes at 1 year after ischemic stroke due to two or more causes. METHODS We identified 862 patients with ischemic stroke due to AF and large artery atherosclerosis from the linked data. These patients were categorized into three groups according to antithrombotic therapies at discharge: (1) antiplatelets, (2) oral anticoagulants (OAC), and (3) antiplatelets plus OAC. The study outcomes were recurrent ischemic stroke, composite outcomes for cardiovascular events, and major bleeding after 1 year. Inverse probability of treatment weighting (IPTW) was used to balance the three groups using propensity scores. RESULTS Among 862 patients, 169 (19.6%) were treated with antiplatelets, 405 (47.0%) were treated with OAC, and 288 (33.4%) were treated with antiplatelets and OAC. After applying IPTW, only OAC had a significant beneficial effect on the 1-year composite outcome (hazard ratio (HR): 0.37, 95% confidence interval (CI): 0.23-0.60, p < 0.001) and death (HR: 0.35, 95% CI: (0.19-0.63), p < 0.001). The combination of antiplatelet agents and OAC group had an increased risk of major bleeding complications (HR: 5.27, 95% CI: (1.31-21.16), p = 0.019). However, there was no significant difference in 1-year recurrent stroke events among the three groups. CONCLUSION This study demonstrated that OAC monotherapy was associated with lower risks of composite outcome and death in patients at 1 year after ischemic stroke due to AF and atherosclerotic stenosis. In addition, the combination of an antiplatelet and OAC had a high risk of major bleeding.
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Affiliation(s)
- Tae Jung Kim
- Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.,Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
| | - Ji Sung Lee
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Sun Yoon
- Department of Neurology, Seoul National University College of Medicine, Seoul, Korea
| | - Mi Sun Oh
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Ji-Woo Kim
- Health Insurance Review and Assessment Service, Wonju, Korea
| | - Soo-Hyun Park
- Department of Neurology, Inha University Hospital, Incheon, Korea
| | - Keun-Hwa Jung
- Department of Neurology, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun Young Kim
- Department of Neurology, Hanyang University Hospital, Seoul, Korea
| | - Jee-Hyun Kwon
- Department of Neurology, Ulsan University Hospital, Ulsan, Korea
| | - Hye-Yeon Choi
- Department of Neurology, Kyung Hee University Hospital at Gangdong, Seoul, Korea
| | - Hahn Young Kim
- Department of Neurology, Konkuk University School of Medicine, Seoul, Korea
| | - Kyung Yoon Eah
- Department of Neurology, Dongguk University College of Medicine, Gyeongju, Korea
| | - Sang Won Han
- Department of Neurology, Inje University College of Medicine, Seoul, Korea
| | - Hyung-Geun Oh
- Department of Neurology, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Young-Jae Kim
- Department of Neurology, Eunpyeong St. Mary's Hospital, Seoul, Korea
| | - Byoung-Soo Shin
- Department of Neurology, Chungbuk National University Hospital, Jeonju, Korea
| | - Chang Hun Kim
- Department of Neurology, Gyeongsang National University Hospital, Jinju, Korea
| | - Chi Kyung Kim
- Department of Neurology, Korea University Guro Hospital, Seoul, Korea
| | - Jong-Moo Park
- Department of Neurology, Uijeongbu Eulji Medical Center, Uijeongbu, Korea
| | - Kyung Bok Lee
- Department of Neurology, Soonchunhyang University Hospital, Seoul, Korea
| | - Tai Hwan Park
- Department of Neurology, Seoul Medical Center, Seoul, Korea
| | - Jun Lee
- Department of Neurology, Yeungnam University Hospital, Daegu, Korea
| | - Man-Seok Park
- Department of Neurology, Chonnam National University Hospital, Gwangju, Korea
| | - Jay Chol Choi
- Department of Neurology, Jeju National University Hospital, Jeju, Korea
| | - Chulho Kim
- Department of Neurology, Hallym University College of Medicine, Chuncheon, Korea
| | - Dong-Ick Shin
- Department of Neurology, Chungbuk National University Hospital, Cheongju, Korea
| | - Soo Joo Lee
- Department of Neurology, Daejeon Eulji University Hospital, Deajeon, Korea
| | - Dong-Eog Kim
- Department of Neurology, Dongguk University Ilsan Hospital, Goyang, Korea
| | - Jae-Kwan Cha
- Department of Neurology, Dong-A University Hospital, Busan, Korea
| | - Eung-Gyu Kim
- Department of Neurology, Inje University Busan Paik Hospital, Busan, Korea
| | - Kyung-Ho Yu
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Keun-Sik Hong
- Department of Neurology, Ilsan Paik Hospital, Goyang, Korea
| | - Young-Seok Lee
- Department of Neurology, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea
| | - Ju-Hun Lee
- Department of Neurology, Kangdong Sacred Heart Hospital, Seoul, Korea
| | - Sung Il Sohn
- Department of Neurology, Keimyung University Dongsan Hospital, Daegu, Korea
| | - Hee-Joon Bae
- Department of Neurology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Young-Bae Lee
- Department of Neurology, Gachon University Gil Medical Center, Incheon, Korea
| | - Jun Hong Lee
- Department of Neurology, Ilsan Hospital, National Health Insurance Service, Goyang, Korea
| | - Joung-Ho Rha
- Department of Neurology, Inha University Hospital, Incheon, Korea
| | - Byung-Chul Lee
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Dae-Il Chang
- Department of Neurology, Kyung Hee University Hospital, Seoul, Korea
| | - Sang-Bae Ko
- Department of Neurology, Seoul National University College of Medicine, Seoul, Korea.,Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
| | - Byung-Woo Yoon
- Department of Neurology, Uijeongbu Eulji Medical Center, Uijeongbu, Korea
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Kim H, Kim SSS, Lee JS, Yoon JS, Youn HJ, Shin H, Lee JE, Lee SK, Chung IY, Jung SY, Choi YJ, Cho J, Woo SU. Epidemiology of Second Non-breast Primary Cancers among Survivors of Breast Cancer: A Korean Population-based Study by the SMARTSHIP group. Cancer Res Treat 2022; 55:580-591. [PMID: 36596730 PMCID: PMC10101780 DOI: 10.4143/crt.2022.410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022] Open
Abstract
Purpose To evaluate the incidence and prognosis of second non-breast primary cancer (SNBPC) among Korean survivors of breast cancer. Materials and Methods Data from the Korean National Health Insurance Service were searched to identify women who received curative surgery for initial breast cancer (IBC) between 2003 and 2008 (n=64,340). Among them, patients with the following characteristics were excluded: other cancer diagnosis before IBC (n=10,866), radiotherapy before IBC (n=349), absence of data on sex or age (n=371), or male (n=248). Accordingly, data of 52,506 women until December, 2017 were analyzed. SNBPC was defined as a newly diagnosed SNBPC that occurred five years or more after IBC diagnosis. Results The median follow-up time of all patients was 12.13 years. SNBPC was developed in 3,084 (5.87%) women after a median 7.61 years following IBC diagnosis. The 10-year incidence of SNBPC was 5.78% (95% CI, 5.56-6.00). Higher SNBPC incidence was found in survivors with the following factors: old age at IBC diagnosis, low household income, and receiving combined chemotherapy with endocrine therapy, whereas receiving radiotherapy was related to a lower incidence of SNBPC (hazard ratio = 0.89, p<0.01). Among the patients with SNBPC, the 5-year survival rate was 62.28% (95% CI, 65.53-69.02). Conclusion Approximately 5% of breast cancer survivors developed SNBPC within 10 years after IBC diagnosis. The risk of SNBPC was associated with patient's age at IBC diagnosis, income level, and a receipt of systemic treatments.
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Affiliation(s)
- Haeyoung Kim
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Su SSan Kim
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Ji Sung Lee
- Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Sun Yoon
- Department of Biostatistics, Korea University, Seoul, Korea
| | - Hyun Jo Youn
- Department of Surgery, Research Institute of Clinical Medicine, Jeonbuk National University Hospital, Jeonbuk National University and Biomedical Research Institute, Jeonju, Korea
| | - Hyukjai Shin
- Department of Surgery, Myongji Hospital, Seonam University College of Medicine, Goyang, Korea
| | - Jeong Eon Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Se Kyung Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Il Yong Chung
- Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - So-Youn Jung
- Center for Breast Cancer, National Cancer Center, Goyang, Korea
| | - Young Jin Choi
- Department of Surgery, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Jihyoung Cho
- Department of Surgery, Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea
| | - Sang Uk Woo
- Department of Surgery, Korea University College of Medicine, Seoul, Korea
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Park S, Lee JS, Yoon JS, Kim NH, Park S, Youn HJ, Lee JW, Lee JE, Lee J, Hur H, Jeong J, Kim KC, Bae SY. The Risk Factors, Incidence and Prognosis of Postpartum Breast Cancer: A Nationwide Study by the SMARTSHIP Group. Front Oncol 2022; 12:889433. [PMID: 35847886 PMCID: PMC9283825 DOI: 10.3389/fonc.2022.889433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 05/31/2022] [Indexed: 12/29/2022] Open
Abstract
The term ‘pregnancy-associated breast cancer’ is no longer used as it has been consistently reported that breast cancer during pregnancy and breast cancer after delivery (postpartum breast cancer) have different characteristics and prognosis. The purpose of this study is to define postpartum breast cancer by analyzing the incidence rate, related factors, and prognosis according to the timing of breast cancer. Data from the Korean National Health Insurance Service were used to analyze 1,292,727 women aged 20-49 years who birthed their first child between 2007 and 2012. The annual incidence rate of breast cancer after delivery increased every year (7.7 per 10,000 person-years after 5 years, 19.36 per 10,000 person-years after 10 years). The risk of breast cancer was significantly higher (hazard ratio 1.15, 95% CI 1.05-1.27, P=0.0037) in women diagnosed with gestational diabetes, but that was not associated with overall survival (OS). Patients diagnosed with breast cancer within 5 years of delivery had a poorer prognosis than those diagnosed later (5-year OS, <5 years: 91.1% vs. 5-10 years: 96.0%). In multivariate analysis of OS, the hazard ratio of patients diagnosed within 5 years after delivery was twice as high as of patients diagnosed between 5 and 10 years. Women diagnosed with gestational diabetes had an increased risk of breast cancer. Breast cancer patients diagnosed within 5 years of delivery had a poorer prognosis than those diagnosed later. In this regard, careful screening for early diagnosis of high-risk patients and intensive research on new treatment strategies are needed.
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Affiliation(s)
- Sungmin Park
- Department of Surgery, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju, South Korea
| | - Ji Sung Lee
- Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Jae Sun Yoon
- Department of Biostatistics, Korea University, Seoul, South Korea
| | - Nam Hyoung Kim
- Advertising and Branding, Kaywon University of Art and Design, Uiwang-si, South Korea
| | - Seho Park
- Division of Breast Surgery, Department of Surgery, Yonsei University College of Medicine, Seoul, South Korea
| | - Hyun Jo Youn
- Department of Surgery, Jeonbuk National University Medical School, Jeonju, South Korea
| | - Jong Won Lee
- Department of Surgery, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Jung Eun Lee
- Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, South Korea
| | - Jihyoun Lee
- Department of Surgery, Soonchunhyang University Seoul Hospital, Seoul, South Korea
| | - Ho Hur
- Department of Surgery, National Health Insurance Service Ilsan Hospital, Koyang-si, South Korea
| | - Joon Jeong
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Kweon-Cheon Kim
- Department of Surgery, Chosun University Medical School, Gwangju, South Korea
| | - Soo Youn Bae
- Department of Surgery, Seoul St. Mary’s Hospital, The Catholic University of Korea, Seoul, South Korea
- *Correspondence: Soo Youn Bae,
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Bae SY, Lee J, Lee JS, Yoon JS, Kim KS, Kim YS, Kim Z, Min JW, Shim EJ, Lee I, Lee MH, Park S. Prognosis of pregnancy after breast cancer diagnosis according to the type of treatment: A population-based study in Korea by the SMARTSHIP group. Breast 2022; 63:46-53. [PMID: 35299034 PMCID: PMC8927839 DOI: 10.1016/j.breast.2022.03.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 01/07/2023] Open
Abstract
Backgrounds In this study, we evaluated the incidence and outcomes of pregnancy after breast cancer was diagnosed in women of childbearing age. Additionally, we evaluated the prognosis of patients who became pregnant after breast cancer, according to the treatment. Methods This was a retrospective cohort study of women aged 20–45 years who were surgically treated for breast cancer between 2004 and 2014 using the Korean National Health Insurance database. The patients were classified into six groups according to the treatment. Propensity score matching was applied to the cohort to analyze the risk of breast cancer-associated mortality after pregnancy and childbirth. Results Of the 45,765 patients who had been newly diagnosed with breast cancer, 1826 (4%) became pregnant after breast cancer diagnosis. Among the pregnant group, the HR of the risk of death was 0.15 (95% CI, 0.06 to 0.36) for patients who became pregnant ≥49 months after the diagnosis. In patients who received endocrine therapy and chemotherapy, the pregnant group had better prognosis than the non-pregnant group. There was no significant difference between the pregnant group and the non-pregnant group in patients who received chemotherapy and trastuzumab with or without endocrine therapy. Conclusion The risk of death was low in women who became pregnant ≥49 months after the diagnosis of breast cancer. The prognosis of pregnant women was non-inferior to that of non-pregnant women, even in women who received trastuzumab. These findings provide reassurance to patients with HER2-positive cancer who are considering future pregnancy. The risk of death was low in women who became pregnant ≥49 months after the diagnosis of breast cancer. In patients who received endocrine therapy and chemotherapy, the pregnant group had better prognosis than the non-pregnant group. The prognosis of pregnant women was non-inferior to that of non-pregnant women, even in women who received trastuzumab.
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Affiliation(s)
- Soo Youn Bae
- Department of Surgery, The Catholic University of Korea Seoul St. Mary's Hospital, Republic of Korea
| | - Jihyoun Lee
- Department of Surgery, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Ji Sung Lee
- Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Jae Sun Yoon
- Korea University, Department of Biostatistics, Seoul, South Korea
| | - Ku Sang Kim
- Department of Surgery, Kosin University Gospel Hospital, Busan, Republic of Korea
| | - Yoo Seok Kim
- Department of Surgery, Chosun University College of Medicine, Gwangju, Republic of Korea
| | - Zisun Kim
- Department of Surgery, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Jun Won Min
- Department of Surgery, Dankook University College of Medicine, Cheonan, Republic of Korea
| | - Eun-Jung Shim
- Department of Psychology, Pusan National University, Busan, Republic of Korea
| | - Ilkyun Lee
- Department of Surgery, Catholic Kwandong University International St. Mary's Hospital, Incheon, Republic of Korea
| | - Min Hyuk Lee
- Department of Surgery, Soonchunhyang University Seoul Hospital, Seoul, Republic of Korea
| | - Sungmin Park
- Department of Surgery, Chungbuk National University Hospital, College of Medicine, Chungbuk National University, Cheongju-si, Republic of Korea.
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Kim TJ, Lee JS, Yoon JS, Park SH, Oh MS, Jung KH, Yu KH, Lee BC, Ko SB, Yoon BW. A Retrospective Study on the Status of Risk Factor Management in Patients with Ischemic Stroke Based on a Large Linked Dataset of Stroke Patients in Korea. J Stroke 2022; 24:288-291. [PMID: 35677983 PMCID: PMC9194550 DOI: 10.5853/jos.2021.03741] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/24/2021] [Indexed: 11/19/2022] Open
Affiliation(s)
- Tae Jung Kim
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
| | - Ji Sung Lee
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Sun Yoon
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
| | - Soo-Hyun Park
- Department of Critical Care Medicine, Inha University Hospital, Incheon, Korea
| | - Mi Sun Oh
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Keun-Hwa Jung
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
| | - Kyung-Ho Yu
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Byung-Chul Lee
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Sang-Bae Ko
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
- Correspondence: Sang-Bae Ko Department of Neurology and Critical Care Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea Tel: +82-2-2072-2278 Fax: +82-2-3672-7553 E-mail:
| | - Byung-Woo Yoon
- Department of Neurology, Uijeongbu Eulji Medical Center, Eulji University, Uijeongbu, Korea
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Kim H, Kim SSS, Lee JS, Yoon JS, Shin HJ, Lee JE, Lee SK, Chung IY, Jung SY, Choi YJ. Abstract P3-12-25: Risk of second primary cancers after curative treatment of breast cancer: A Korean nationwide population-based study. Cancer Res 2022. [DOI: 10.1158/1538-7445.sabcs21-p3-12-25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose:This study was performed to analyze the risk of second non-breast primary cancers (2nd_PrimaryCa) among Korean women who had received curative treatment for breast cancer. Methods:By using data from the Korean National Health Insurance Service Database between 2002 and 2017, we identified 399,621 women with invasive breast cancer. To analyze the long-term risk of 2nd_PrimaryCa, we included 52,506 women who underwent curative surgery between 2003 and 2008, and no history of cancers before the date of breast cancer surgery. The cumulative incidence of 2nd_PrimaryCa was estimated using the Kaplan-Meier analysis. Cox regression analysis was used to analyze the association between 2nd_PrimaryCa occurrence and factors including age, income level, receipt of systemic treatment or radiotherapy, family history of cancers, alcohol intake, and BRCA gene mutations.Results:A total of 3,084 (5.87%) patients developed 2nd_PrimaryCa. The 10-year incidence of 2nd_PrimaryCa was 5.78% (range, 5.56 – 6.00%). The median time to 2nd_PrimaryCa was 7.61 years (range, 6.22 – 9.31 years). Types of organs involved by 2nd_PrimaryCa were as followings: thyroid (18.84%), gynecological organs (12.78%), hepatobiliary structures (12.48%), thorax (11.25%), lower gastrointestinal (GI) tract (9.63%), upper GI tract (9.18%), skin (4.22%), lymphoma or leukemia (4.09%), brain (3.15%), head and neck (2.56%), and others (11.84%). The risk of 2nd_PrimaryCa was significantly associated with ≥ 60 years of age (hazard ratio (HR) = 2.15, 95% confidence interval (CI) = 1.60 – 2.90, p < 0.01), Medical Aid recipients (HR = 8.79, 95% CI = 6.73 – 10.85, p < 0.01), and receipt of chemotherapy and endocrine therapy (HR = 1.27, 95% CI = 1.12 – 1.43, p < 0.01). Radiotherapy was related to lower incidence of 2nd_PrimaryCa (HR = 0.87, 95% CI = 0.81 – 0.94, p < 0.01). Alcohol intake, family history of cancer, or carrying BRCA gene mutations was not related to the risk of 2nd_PrimaryCa. Among the patients with 2nd_PrimaryCa, the 5-year overall survival (OS) rate was 67.28% after the diagnosis of 2nd_PrimaryCa. Age of ≥ 60 years (HR = 1.67, 95% CI = 1.01 – 2.78, p = 0.04) and receiving chemotherapy and endocrine therapy (HR = 1.88, 95% CI = 1.43 – 2.46, p < 0.01) were significantly related to inferior OS. Conclusions:The risk of 2nd_PrimaryCa was associated with personal and treatment factors in Korean patients with breast cancer. These factors are needed to be considered in the surveillance of breast cancer survivors.
Citation Format: Haeyoung Kim, Su SSan Kim, Ji Sung Lee, Jae Sun Yoon, Hyuk Jai Shin, Jeong Eon Lee, Sei Kyung Lee, Il Yong Chung, So-Youn Jung, Young Jin Choi, Korean Breast Cancer Society. Risk of second primary cancers after curative treatment of breast cancer: A Korean nationwide population-based study [abstract]. In: Proceedings of the 2021 San Antonio Breast Cancer Symposium; 2021 Dec 7-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2022;82(4 Suppl):Abstract nr P3-12-25.
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Affiliation(s)
- Haeyoung Kim
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Republic of
| | - Su SSan Kim
- Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea, Republic of
| | - Ji Sung Lee
- Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea, Republic of
| | - Jae Sun Yoon
- Korea University, Department of Biostatistics, Seoul, Korea, Republic of
| | - Hyuk Jai Shin
- Department of Surgery, Myongji Hospital, Seonam University College of Medicine, Goyang, Korea, Republic of
| | - Jeong Eon Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Republic of
| | - Sei Kyung Lee
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Republic of
| | - Il Yong Chung
- Division of Breast Surgery, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea, Republic of
| | - So-Youn Jung
- Center for Breast Cancer, National Cancer Center, Goyang, Korea, Republic of
| | - Young Jin Choi
- Department of Surgery, Chungbuk National University Hospital, Chungbuk National University College of Medicine, Cheongju, Korea, Republic of
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Baek YJ, Lee YJ, Yoon JS, Sohn Y, Cho Y, Kim MH, Hyun JH, Lee EH, Lee KH, Kim JH, Ahn JY, Jeong SJ, Ku NS, Yeom JS, Choi JY. Duration of culturable SARS-CoV-2 within different specimens among mild and severe COVID-19 patients: A longitudinal study. J Infect 2021; 83:e29-e31. [PMID: 33932450 PMCID: PMC8080513 DOI: 10.1016/j.jinf.2021.04.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 12/20/2022]
Affiliation(s)
- Yae Jee Baek
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Youn-Jung Lee
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Jae Sun Yoon
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Yujin Sohn
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Yunsuk Cho
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Moo Hyun Kim
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Jong Hoon Hyun
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Eun Hwa Lee
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Ki Hyun Lee
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Jung Ho Kim
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Jin Young Ahn
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Su Jin Jeong
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Nam Su Ku
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Joon-Sup Yeom
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea
| | - Jun Yong Choi
- Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Yonsei University Health System, 50-1, Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea.
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Kim TJ, Lee JS, Yoon JS, Oh MS, Kim JW, Jung KH, Yu KH, Lee BC, Ko SB, Yoon BW. Impact of the Dedicated Neurointensivists on the Outcome in Patients with Ischemic Stroke Based on the Linked Big Data for Stroke in Korea. J Korean Med Sci 2020; 35:e135. [PMID: 32476299 PMCID: PMC7261699 DOI: 10.3346/jkms.2020.35.e135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 03/22/2020] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Neurocritical care by dedicated neurointensivists may improve outcomes of critically ill patients with severe brain injury. In this study, we aimed to validate whether neurointensive care could improve the outcome in patients with critically ill acute ischemic stroke using the linked big dataset on stroke in Korea. METHODS We included 1,405 acute ischemic stroke patients with mechanical ventilator support in the intensive care unit after an index stroke. Patients were retrieved from linking the Clinical Research Center for Stroke Registry and the Health Insurance Review and Assessment Service data from the period between January 2007 and December 2014. The outcomes were mortality at discharge and at 3 months after an index stroke. The main outcomes were compared between the centers with and without dedicated neurointensivists. RESULTS Among the included patients, 303 (21.6%) were admitted to the centers with dedicated neurointensivists. The patients treated by dedicated neurointensivists had significantly lower in-hospital mortality (18.3% vs. 26.8%, P = 0.002) as well as lower mortality at 3-month (38.0% vs. 49.1%, P < 0.001) than those who were treated without neurointensivists. After adjusting for confounders, a treatment without neurointensivists was independently associated with higher in-hospital mortality (odds ratio [OR], 1.59; 95% confidence intervals [CIs], 1.13-2.25; P = 0.008) and 3-month mortality (OR, 1.48; 95% CIs, 1.12-1.95; P = 0.005). CONCLUSION Treatment by dedicated neurointensivists is associated with lower in-hospital and 3-month mortality using the linked big datasets for stroke in Korea. This finding stresses the importance of neurointensivists in treating patients with severe ischemic stroke.
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Affiliation(s)
- Tae Jung Kim
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea
| | - Ji Sung Lee
- Department of Clinical Research Center, Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Sun Yoon
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
| | - Mi Sun Oh
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Ji Woo Kim
- Health Insurance Review and Assessment Service, Wonju, Korea
| | - Keun Hwa Jung
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
| | - Kyung Ho Yu
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Byung Chul Lee
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Sang Bae Ko
- Department of Neurology, Seoul National University Hospital, Seoul, Korea
- Department of Critical Care Medicine, Seoul National University Hospital, Seoul, Korea.
| | - Byung Woo Yoon
- Department of Neurology, Seoul National University Hospital, Seoul, Korea.
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Kim TJ, Lee JS, Oh MS, Kim JW, Yoon JS, Lim JS, Lee CH, Mo H, Jeong HY, Kim Y, Lee SH, Jung KH, Kim LY, An MR, Park YH, Lee TS, Heo YJ, Ko SB, Yu KH, Lee BC, Yoon BW. Predicting Functional Outcome Based on Linked Data After Acute Ischemic Stroke: S-SMART Score. Transl Stroke Res 2020; 11:1296-1305. [PMID: 32306239 DOI: 10.1007/s12975-020-00815-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/30/2020] [Accepted: 04/06/2020] [Indexed: 11/28/2022]
Abstract
Prediction of outcome after stroke may help clinicians provide effective management and plan long-term care. We aimed to develop and validate a score for predicting good functional outcome available for hospitals after ischemic stroke using linked data. A total of 22,005 patients with acute ischemic stroke from the Clinical Research Center for Stroke Registry between July 2007 and December 2014 were included in the derivation group. We assessed functional outcomes using a modified Rankin scale (mRS) score at 3 months after ischemic stroke. We identified predictors related to good 3-month outcome (mRS score ≤ 2) and developed a score. External validations (geographic and temporal validations) of the developed model were performed. The prediction model performance was assessed using the area under the receiver operating characteristic curve (AUC) and the calibration test. Stroke severity, sex, stroke mechanism, age, pre-stroke mRS, and thrombolysis/thrombectomy treatment were identified as predictors for 3-month good functional outcomes in the S-SMART score (total 34 points). Patients with higher S-SMART scores had an increased likelihood of a good outcome. The AUC of the prediction score was 0.805 (0.798-0.811) in the derivation group and 0.812 (0.795-0.830) in the geographic validation group for good functional outcome. The AUC of the model was 0.812 (0.771-0.854) for the temporal validation group. Moreover, they had good calibration. The S-SMART score is a valid and useful tool to predict good functional outcome following ischemic stroke. This prediction model may assist in the estimation of outcomes to determine care plans after stroke.
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Affiliation(s)
- Tae Jung Kim
- Department of Neurology, Seoul National University Hospital, 101 Daehakno, Jongno-Gu, Seoul, 03080, South Korea
| | - Ji Sung Lee
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Center, University of Ulsan College of Medicine, Seoul, South Korea
| | - Mi-Sun Oh
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - Ji-Woo Kim
- Health Insurance Review and Assessment Service, Wonju, South Korea
| | - Jae Sun Yoon
- Department of Neurology, Seoul National University Hospital, 101 Daehakno, Jongno-Gu, Seoul, 03080, South Korea
| | - Jae-Sung Lim
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - Chan-Hyuk Lee
- Department of Neurology, Seoul National University Hospital, 101 Daehakno, Jongno-Gu, Seoul, 03080, South Korea
| | - Heejung Mo
- Department of Neurology, Seoul National University Hospital, 101 Daehakno, Jongno-Gu, Seoul, 03080, South Korea
| | - Han-Yeong Jeong
- Department of Neurology, Seoul National University Hospital, 101 Daehakno, Jongno-Gu, Seoul, 03080, South Korea
| | - Yerim Kim
- Department of Neurology, Kangdong Sacred Heart Hospital, Seoul, South Korea
| | - Sang-Hwa Lee
- Department of Neurology, Hallym University College of Medicine, Chuncheon, South Korea
| | - Keun-Hwa Jung
- Department of Neurology, Seoul National University Hospital, 101 Daehakno, Jongno-Gu, Seoul, 03080, South Korea
| | - Log Young Kim
- Health Insurance Review and Assessment Service, Wonju, South Korea
| | - Mi Ra An
- Health Insurance Review and Assessment Service, Wonju, South Korea
| | - Young Hee Park
- Health Insurance Review and Assessment Service, Wonju, South Korea
| | - Tae Seon Lee
- Health Insurance Review and Assessment Service, Wonju, South Korea
| | - Yun Jung Heo
- Health Insurance Review and Assessment Service, Wonju, South Korea
| | - Sang-Bae Ko
- Department of Neurology, Seoul National University Hospital, 101 Daehakno, Jongno-Gu, Seoul, 03080, South Korea
| | - Kyung-Ho Yu
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - Byung-Chul Lee
- Department of Neurology, Hallym University Sacred Heart Hospital, Anyang, South Korea
| | - Byung-Woo Yoon
- Department of Neurology, Seoul National University Hospital, 101 Daehakno, Jongno-Gu, Seoul, 03080, South Korea.
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Yoon JS, Nishifuji K, Iwasaki T. Development of an in vitro submerged culture system to synthesize epidermal ceramides in canine keratinocytes. Res Vet Sci 2020; 130:48-51. [PMID: 32143083 DOI: 10.1016/j.rvsc.2020.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 12/31/2019] [Accepted: 02/18/2020] [Indexed: 12/30/2022]
Abstract
Ceramides (CERs) in the stratum corneum (SC) are known to play a crucial role in determining skin barrier function in dogs. We aimed to develop an in vitro culture system that synthesized epidermal CER classes to better understand the synthesis of CER classes in canine SC-. Canine keratinocyte cells (MSCEK) at appropriate confluency were incubated with high Ca2+ (1.8 mM CaCl2) supplemented serum-free medium. Eight days post Ca2+ application, the surface of cultured MSCEK was broadly stained with anti-loricrin antibody implying that the keratinocytes had stratified into stratum granulosum. MSCEK cells synthesized heterogenous epidermal CERs, similar to those seen during the stratification of canine keratinocytes. CER fractions obtained from MSCEK cells were comparable to those from canine SC, including CER[EOS] (combination of ω-hydroxy fatty acids and sphingosines), CER[NP] (combination of non-hydroxy fatty acids and phytosphingosines), and CER[EOP] (combination of ω-hydroxy fatty acids and phytosphingosines), all of which are lowered in the SC during canine atopic dermatitis. Thus, the present study provides a simple culture system as a tool for in-depth analysis of CER production in canine keratinocytes.
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Affiliation(s)
- J S Yoon
- Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
| | - K Nishifuji
- Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - T Iwasaki
- Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
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Kim SW, Kim MA, Chang Y, Lee HY, Yoon JS, Lee YB, Cho EJ, Lee JH, Yu SJ, Yoon JH, Park KJ, Kim YJ. Prognosis of surgical hernia repair in cirrhotic patients with refractory ascites. Hernia 2019; 24:481-488. [PMID: 31512088 DOI: 10.1007/s10029-019-02043-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 08/27/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Abdominal wall hernias are common in patients with ascites. Elective surgical repair is recommended for the treatment of abdominal wall hernias. However, surgical hernia repair in cirrhotic patients with refractory ascites is controversial. In this study, we aimed to evaluate the outcomes of elective surgical hernia repair in patients with liver cirrhosis with and without refractory ascites. METHOD From January 2005 to June 2018, we retrospectively reviewed the records of consecutive patients with liver cirrhosis who underwent a surgical hernia repair. RESULTS This study included 107 patients; 31 patients (29.0%) had refractory ascites. Preoperatively, cirrhotic patients with refractory ascites had a higher median model for end-stage liver disease (MELD) score (13.0 vs 11.0, P = 0.001) than those without refractory ascites. The 30-day mortality rate (3.2% vs 0%, P = 0.64) and the risk of recurrence (hazard ratio 0.410; 95% CI 0.050-3.220; P = 0.39) did not differ significantly between cirrhotic patients with refractory ascites and cirrhotic patients without refractory ascites. Among cirrhotic patients with refractory ascites, albumin (P = 0.23), bilirubin (P = 0.37), creatinine (P = 0.97), and sodium levels (P = 0.35) did not change significantly after surgery. CONCLUSION In advanced liver cirrhosis patients with refractory ascites, hernias can be safely treated with elective surgical repair. Mortality rate within 30 days did not differ by the presence or absence of refractory ascites. Elective hernia repair might be beneficial for treatment of abdominal wall hernia in cirrhotic patients with refractory ascites.
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Affiliation(s)
- S W Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - M A Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Y Chang
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - H Y Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Department of Internal Medicine, Eulji General Hospital, Eulji University School of Medicine, Seoul, South Korea
| | - J S Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Y B Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - E J Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - J-H Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - S J Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - J-H Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - K J Park
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Y J Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea. .,Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
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Jeong HG, Yoon JS, Lee J, Bae HJ. Incidence of neutropenia in patients with ticlopidine/Ginkgo biloba extract combination drug for vascular events: A post-marketing cohort study. PLoS One 2019; 14:e0217723. [PMID: 31166961 PMCID: PMC6550423 DOI: 10.1371/journal.pone.0217723] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 05/08/2019] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND AND PURPOSE The ticlopidine/Ginkgo biloba ext. combination drug (Yuclid) is used as an antiplatelet agent for prevention of vascular events since its approval in 2008. The purpose of this study is to explore the safety of ticlopidine/Ginkgo biloba combination, mainly regarding the incidence of neutropenia, through a post-marketing surveillance study. METHODS From March 2009 to October 2015, a total of 4839 subjects had been enrolled in this study. The enrollments were conducted by 152 doctors of 89 hospitals according to the regulations for post-marketing surveillance programs in Korea. If a subject was administered the drug once, he/she was included in the safety analysis set for any adverse events and bleedings, and the primary safety evaluation regarding neutropenia was conducted in subjects who completed 3-month blood test follow-up. We predefined that 1% reduction in neutropenia incidence by ticlopidine/Ginkgo biloba ext. combination from the previously reported incidence of ticlopidine of 2.3% was clinically meaningful. RESULTS Among the safety analysis set of 4831 patients (99.8% of the enrolled subjects), 3150 (65.1%) completed evaluation for neutropenia at 3 months which is the primary safety endpoint. The major causes of dropout were no follow-up visit at 3 months (n = 1016) and violation of the follow-up period (n = 503). Nine patients experienced neutropenia (Absolute neutrophil count [ANC] ≤ 1200mm3) and the estimated cumulative incidence at 3 months is 0.29% (95% confidence interval, 0.13%- 0.54%). Severe neutropenia (ANC ≤ 450mm3) did not occur in any patients. CONCLUSIONS The incidence of neutropenia with addition of Ginkgo biloba ext. to ticlopidine may be lower than the previously reported incidence of neutropenia with ticlopidine, which needs to be confirmed in randomized controlled trials.
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Affiliation(s)
- Han-Gil Jeong
- Department of Neurology and Cerebrovascular Center, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Jae Sun Yoon
- Department of Biostatistics, Korea University, Seoul, Korea
| | - Juneyoung Lee
- Department of Biostatistics, Korea University, Seoul, Korea
| | - Hee-Joon Bae
- Department of Neurology and Cerebrovascular Center, Seoul National University Bundang Hospital, Seongnam, Republic of Korea
- * E-mail:
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Kim YC, Yang JY, Yoon JS, Jo SJ, Ahn HH, Song KH, Lee DY, Chung KY, Won YH, Kim IH. A multicentre, open, investigator-initiated phase IV clinical trial to evaluate the efficacy and safety of ingenol mebutate gel, 0·015% on the face and scalp, and 0·05% on the trunk and extremities, in Korean patients with actinic keratosis (PERFECT). Br J Dermatol 2018; 179:836-843. [PMID: 29355904 DOI: 10.1111/bjd.16368] [Citation(s) in RCA: 6] [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] [Accepted: 01/14/2018] [Indexed: 01/04/2023]
Abstract
BACKGROUND Ingenol mebutate gel is a novel, field-directed topical treatment for actinic keratosis (AK). Most pivotal studies have targeted Western populations. No clinical study has been conducted to investigate its efficacy and safety in Asian populations. OBJECTIVES To evaluate the efficacy and safety of ingenol mebutate gel for treating AK of face/scalp and trunk/extremities in a large Asian (Korean) population. PATIENTS AND METHODS In this multicentre, open-label, interventional, parallel-group, prospective phase IV study (PERFECT, trial registration no.: NCT02716714), the eligible patients were allocated into either the face/scalp or the trunk/extremities group, according to their selected treatment area location. After application of ingenol mebutate gel, the participants were followed up for 6 months. The primary efficacy endpoint was complete clearance (CC) of AK lesions in the selected treatment area at day 57. Quality of life was evaluated using Skindex-29. Safety endpoints included local skin responses, scar, pigmentation, pain and adverse events. RESULTS In total, 78·1% [95% confidence interval (CI) 66·86-86·92%] of subjects had CC at day 57, with 76·6% (95% CI 64·31-86·25%) in the face/scalp group and 88·9% (95% CI 51·75-99·72%) in the trunk/extremities group. Among them, CC was sustained in 88·9% (48 of 54, 95% CI 77·37-95·81%) at month 6. The local skin responses significantly increased 1 day after the treatment compared with baseline, and decreased afterwards. Among the total subjects, 7·8% (6 of 77) had hyperpigmentation on the application area. Scars were not reported. CONCLUSIONS Ingenol mebutate is effective for the treatment of AK in Asians, with tolerable safety profiles.
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Affiliation(s)
- Y C Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J Y Yang
- Department of Dermatology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J S Yoon
- Department of Dermatology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - S J Jo
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H H Ahn
- Department of Dermatology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - K-H Song
- Department of Dermatology, Dong-A University College of Medicine, Busan, Republic of Korea
| | - D-Y Lee
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - K-Y Chung
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y-H Won
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - I-H Kim
- Department of Dermatology, Korea University Ansan Hospital, Korea University College of Medicine, 123 Jeokgeum-ro, Danwon-gu, Ansan, 15355, Republic of Korea
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Lee JW, Cha JH, Shin SH, Cha HJ, Kim JH, Park CK, Pak KA, Yoon JS, Park SY. Effect of the sexual abstinence period recommended by the World Health Organization on clinical outcomes of fresh embryo transfer cycles with normal ovarian response after intracytoplasmic sperm injection. Andrologia 2018; 50:e12964. [PMID: 29460293 DOI: 10.1111/and.12964] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/04/2018] [Indexed: 11/28/2022] Open
Abstract
This study was to investigate whether the sexual abstinence period (SAP) recommended by the World Health Organization (WHO) affects clinical outcomes. We compared the rate of clinical outcomes between 2-7 and ≥8 days of SAP in first fresh embryo transfer after intracytoplasmic sperm injection (ICSI) in groups of young maternal age (YMA: <38 years) and old maternal age (OMA: ≥38 years). We conducted a retrospective study of 449 first ICSI cycles with a normal ovarian response. SAP was identified before collecting the semen samples. Semen analysis was performed based on the guidelines recommended by WHO (2010). Sperm preparation was made using the swim-up method. Patients' baseline characteristics in the YMA and OMA groups did not differ. The rates of fertilisation, top-quality embryos on day 3, biochemical pregnancy, clinical pregnancy, ongoing pregnancy, abortion and implantation per cycle were not significantly different between 2-7 and ≥8 days of SAP in the YMA or OMA group. In conclusion, SAP beyond the recommended period by WHO was not associated with the rates of a lower fertilisation and pregnancy in human in vitro fertilisation (IVF). We think that a new criterion of SAP for clinical application in human IVF needs to be considered by WHO.
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Affiliation(s)
- J W Lee
- Agaon Fertility Clinic, Seoul, Korea
- College of Animal Life Science, Kangwon National University, Chuncheon, Korea
| | - J H Cha
- Agaon Fertility Clinic, Seoul, Korea
| | - S H Shin
- Agaon Fertility Clinic, Seoul, Korea
- College of Animal Life Science, Kangwon National University, Chuncheon, Korea
| | - H J Cha
- Agaon Fertility Clinic, Seoul, Korea
| | - J H Kim
- Agaon Fertility Clinic, Seoul, Korea
| | - C K Park
- College of Animal Life Science, Kangwon National University, Chuncheon, Korea
| | - K A Pak
- Agaon Fertility Clinic, Seoul, Korea
| | - J S Yoon
- Agaon Fertility Clinic, Seoul, Korea
| | - S Y Park
- Agaon Fertility Clinic, Seoul, Korea
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Ko JS, Seo Y, Chae MK, Jang SY, Yoon JS. Effect of topical loteprednol etabonate with lid hygiene on tear cytokines and meibomian gland dysfunction in prosthetic eye wearers. Eye (Lond) 2017; 32:439-445. [PMID: 29052604 DOI: 10.1038/eye.2017.213] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 08/21/2017] [Indexed: 02/04/2023] Open
Abstract
PurposeTo assess tear cytokine levels and clinical outcomes in meibomian gland dysfunction (MGD) in the blind eye of patients wearing an ocular prosthesis after 2 months of treatment with topical loteprednol etabonate and eyelid scrubs with warm compresses.Patients and methodsThis study included patients with MGD wearing a unilateral ocular prosthesis for more than 1 year. All patients topically received 0.5% loteprednol etabonate and were instructed to scrub their eyelids with warm compresses on the prosthetic eye for 2 months. We evaluated tear cytokine levels using Multiplex Bead Immunoassays, performed biomicroscopic examination of the lid margins and meibomian gland, conducted meibography imaging, and assessed MGD-related ocular symptoms using a questionnaire for the prosthetic eye before and 2 months after treatment.ResultsThirty consecutive patients were included. There were significant reductions in the levels of interleukin (IL)-6, interferon-γ, monocyte chemotactic protein-1, IL-8, tumor necrosis factor-α, and IL-1β (P<0.001 for each cytokine). Moreover, there were improvements in ocular symptoms (P=0.001), lid margin abnormalities (P<0.001), meibomian gland expressibility (P<0.001) and meibography findings (P=0.037).ConclusionTopical loteprednol etabonate in conjunction with eyelid scrubs and warm compresses were effective in treating MGD in prosthetic eye wearers. Furthermore, tear cytokine measurements may serve as an additional approach for evaluating the efficacy of anti-inflammatory treatment for MGD in prosthetic eye wearers.
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Affiliation(s)
- J S Ko
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - Y Seo
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - M K Chae
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Jang
- Department of Ophthalmology, Soonchunhyang Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - J S Yoon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
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Seo YS, Kim MS, Kang JK, Jang WI, Kim HJ, Cho CK, Yoo HJ, Paik EK, Cha YJ, Yoon JS. The Clinical Utilization of Radiation Therapy in Korea between 2011 and 2015. Cancer Res Treat 2017; 50:345-355. [PMID: 28449574 PMCID: PMC5912150 DOI: 10.4143/crt.2017.096] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 02/23/2017] [Accepted: 04/19/2017] [Indexed: 12/27/2022] Open
Abstract
Purpose The purpose of this study was to estimate the clinical utilization of radiation therapy (RT) in Korea between 2011 and 2015. Materials and Methods We analyzed the claims data from the Health Insurance Review and Assessment Service to estimate the clinical utilization of RT. The source population consisted of all patients who had any of the International Classification of Diseases 10th revision cancer diagnoses (C00-C97) and those with diagnostic codes D00-D48, who were also associated with at least one of the procedure codes related to RT. Results The total number of patients who received RT in 2011, 2012, 2013, 2014, and 2015 were 54,810, 59,435, 61,839, 64,062, and 66,183, respectively. Among them, the total numbers of male and female patients were 24,946/29,864 in 2011, 27,211/32,224 in 2012, 28,111/33,728 in 2013, 29,312/34,750 in 2014, and 30,266/35,917 in 2015. The utilization rate of RT in cancer patients has also increased steadily over the same period from 25% to 30%. The five cancers that were most frequently treated with RT between 2011 and 2012 were breast, lung, colorectal, liver, and uterine cervical cancers. However, the fifth most common cancer treated with RT that replaced uterine cervical cancer in 2013 was prostate cancer. More than half of cancer patients (64%) were treated with RT in the capital area (Seoul, Gyeonggi, and Incheon). Conclusion The total number of patients who underwent RT increased steadily from 2011 to 2015 in Korea. The utilization rate of RT in cancer patients is also increasing.
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Affiliation(s)
- Young-Seok Seo
- Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Mi-Sook Kim
- Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Korea.,Radiation Medicine Policy Development Center, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Jin-Kyu Kang
- National Radiation Emergency Medical Center, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Won-Il Jang
- Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Hee Jin Kim
- Radiation Medicine Policy Development Center, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Chul Koo Cho
- Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Hyung Jun Yoo
- Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Eun Kyung Paik
- Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Yu Jin Cha
- Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Korea
| | - Jae Sun Yoon
- Department of Biostatistics, Korea University, Seoul, Korea
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Woo YJ, Kim JW, Yoon JS. Preoperative clinical features of reactivated of Graves' orbitopathy after orbital decompression. Eye (Lond) 2017; 31:643-649. [PMID: 28060361 DOI: 10.1038/eye.2016.304] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 11/20/2016] [Indexed: 12/30/2022] Open
Abstract
PurposeTo investigate the incidence and preoperative clinical features of reactivated Graves' orbitopathy (GO) after orbital decompression.MethodsThis study included patients with GO who underwent orbital decompression for disfiguring proptosis and not compressive optic neuropathy and received postoperative follow-up care for more than 12 months. Patients who experienced active inflammatory signs within 6 months of decompression were excluded from analysis. The demographic characteristics, ophthalmic manifestations, and biochemical parameters of the patients were analyzed for association with reactivation of GO by logistic regression analysis.ResultsOut of the 92 patients included in this study, seven (7.6%) experienced reactivation of GO after orbital decompression. The mean time interval between surgery and reactivation of GO was 36.3±14.3 weeks. Univariate logistic regression analysis identified age, existing smoking habits, and modified NOSPECS and Gorman scores as significant factors for the reactivation of GO. The results of multivariate logistic regression analysis revealed that smoking and modified NOSPECS and Gorman scores were associated with the reactivation of GO.ConclusionsQuitting smoking is important for the prevention of reactivation of GO after orbital decompression. Patients with severe symptoms, especially those with restrictive myopathy, should be carefully monitored for reactivation of GO after orbital decompression.
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Affiliation(s)
- Y J Woo
- Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
| | - J W Kim
- Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
| | - J S Yoon
- Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
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Moon JS, Kim JH, Kim JH, Park IR, Lee JH, Kim HJ, Lee J, Kim YK, Yoon JS, Won KC, Lee HW. Impaired RBC deformability is associated with diabetic retinopathy in patients with type 2 diabetes. Diabetes Metab 2016; 42:448-452. [PMID: 27209441 DOI: 10.1016/j.diabet.2016.04.008] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 04/19/2016] [Accepted: 04/24/2016] [Indexed: 11/24/2022]
Abstract
AIM Red blood cell (RBC) deformability, the ability of RBCs to change shape under stress, is known to be decreased in type 2 diabetes (T2D). However, as yet little is known of the association between RBC deformability and diabetic complications in T2D. For this reason, this study has investigated the association between RBC deformability and diabetic complications. METHODS In this cross-sectional study, 452 T2D patients were initially enrolled. RBC deformability was measured using a microfluidic ektacytometer and expressed as an elongation index at 3Pa (EI@3Pa, %). RESULTS A final total of 373 patients (mean age: 60.04±11.93 years; males: 201) were included in the study. When categorized into quartiles of RBC deformability, the lower EI@3Pa groups had higher glycated haemoglobin (HbA1c), triglycerides and prevalence of diabetic retinopathy compared with the higher quartiles (P<0.05 for trend). In particular, the EI@3Pa was significantly lower in patients with retinopathy than in those without retinopathy (30.53±1.95 vs 31.20±1.53, P=0.001). Between the lowest EI@3Pa quartile (Q1) to the highest (Q4, reference), the odds ratio (OR) for Q1 was 2.81 (95% CI: 1.21-6.49, P=0.004 for trend), after adjusting for age, gender, presence of hypertension and smoking, duration of diabetes, HbA1c, glomerular filtration rate and triglycerides. CONCLUSION In terms of diabetic complications, the lowest EI@3Pa group was closely associated with only the risk of diabetic retinopathy in our study. These results suggest that RBC deformability might be contributory to the development of the microvascular complication.
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Affiliation(s)
- J S Moon
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - J H Kim
- HaeDong Internal Medicine Clinic, Daegu, Republic of Korea
| | - J H Kim
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - I R Park
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - J H Lee
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - H J Kim
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - J Lee
- Yeungnam University College of Medicine, Department of Ophthalmology, Daegu, Republic of Korea
| | - Y K Kim
- Yeungnam University College of Medicine, Department of Laboratory Medicine, Daegu, Republic of Korea
| | - J S Yoon
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - K C Won
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea.
| | - H W Lee
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
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Kim SW, Bae KY, Kim JM, Shin IS, Hong YJ, Ahn Y, Jeong MH, Berk M, Yoon JS. The use of statins for the treatment of depression in patients with acute coronary syndrome. Transl Psychiatry 2015; 5:e620. [PMID: 26285130 PMCID: PMC4564569 DOI: 10.1038/tp.2015.116] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 06/26/2015] [Accepted: 07/08/2015] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate the effect of statins for the treatment of depression in individuals with acute coronary syndrome (ACS). We used 1-year follow-up data of a 24-week double-blind, placebo-controlled trial of escitalopram and a naturalistic prospective observational cohort study. Of 446 participants with comorbid depressive disorders and ACS at baseline, 300 participated in a randomised escitalopram trial and the remaining 146 participated in a naturalistic observational study. The participants in the two studies were approached for a 1-year follow-up investigation. Treatment response rates, defined as a ⩾ 50% reduction in the Hamilton Depression Rating Scale (HAM-D) and Beck Depression Inventory (BDI) scores, were used as the outcome variables. In the escitalopram trial, both HAM-D and BDI response rates were highest in patients taking escitalopram and statins together and lowest in patients receiving neither medication. Logistic regression analyses revealed that statin use was significantly associated with higher response rates on both the HAM-D and BDI at 1 year, whereas no such associations were found for escitalopram. In the naturalistic observational study, the response rates at 1 year did not differ significantly by statin use. Instead, the HAM-D response rate was significantly higher in patients taking lipophilic statins than in those who did not. In conclusion, statins may be effective for the treatment of depression independent of medical status and escitalopram use, and they may potentiate the antidepressant action of serotonergic antidepressants in patients with ACS.
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Affiliation(s)
- S W Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - K Y Bae
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - J M Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea,Department of Psychiatry, Chonnam National University Medical School, 160 Baekseoro, Donggu, Gwangju 501-746, Korea. E-mail:
| | - I S Shin
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - Y J Hong
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Korea
| | - Y Ahn
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Korea
| | - M H Jeong
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Korea
| | - M Berk
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Geelong, VIC, Australia,Department of Psychiatry, The University of Melbourne, Parkville, VIC, Australia
| | - J S Yoon
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
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Kim YS, Yoon JS, Jang SY. Comparison of two- and three-point sutures for advancing the levator aponeurosis in Asian eyelids. Eye (Lond) 2015; 29:1181-5. [PMID: 26113504 DOI: 10.1038/eye.2015.107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 04/30/2015] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To compare the functional and cosmetic outcomes of two- and three-point sutures for advancing the levator aponeurosis in blepharoptosis surgery on Asians. PATIENTS AND METHODS This retrospective study examined 60 Asian patients with blepharoptosis who had undergone advancement of the levator aponeurosis: 34 patients (46 eyelids) had ptosis correction using the two-point suture technique and 26 patients (41 eyelids) had ptosis correction using the three-point suture technique. The postoperative marginal reflex distance (MRD1), lid height difference, and eyelid contour were evaluated. RESULTS Twenty-seven (79.4%) of the 34 patients in the two-point group and 19 (73.1%) of 26 patients in the three-point group had a postoperative MRD1 of 2-4 mm, lids within 0.5 mm of each other, and a satisfactory eyelid contour; this difference was not significant. The rate of reoperation did not differ significantly between the two groups. CONCLUSION Two- and three-point sutures for advancing the levator aponeurosis were equally effective for correcting blepharoptosis in Asians.
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Affiliation(s)
- Y S Kim
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - J S Yoon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Jang
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.,Yonsei University Graduate School of Medicine, Seoul, Korea
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Han JW, Yoon JS, Jang SY. Short-term effects of topical cyclosporine A 0.05% (Restasis) in long-standing prosthetic eye wearers: a pilot study. Eye (Lond) 2014; 28:1212-7. [PMID: 25081289 DOI: 10.1038/eye.2014.174] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Accepted: 05/20/2014] [Indexed: 12/28/2022] Open
Abstract
PURPOSE Long-standing prosthetic eye wearing induces ocular surface inflammation. We investigated the short-term effects of topical cyclosporine A 0.05% (Restasis) in patients with ocular discomfort resulting from long-standing prosthetic eye wearing. METHODS This was a prospective, interventional case series. Patients who were unilateral prosthetic eye wearers over a period of 5 years were enrolled at a single institution from March to July 2013. The subjects were instructed to instill topical cyclosporine A 0.05% twice per day. Measurements were made pre-treatment and after 1 and 3 months of treatment. Outcome measures were the ocular symptom score, the lid margin abnormality score, the Schirmer test, and the tear meniscus amount, using Fourier-domain optical coherence tomography. RESULTS In total, 20 consecutive patients (mean age: 60.1 years, 8 males, 12 females) were included. Ocular symptoms were improved after treatment for 1 month in all patients (ocular symptom score pre-treatment 76.83 vs 46.75 after treatment; P<0.001). There was no statistically significant difference in lid margin abnormality score or tear meniscus amount. The Schirmer test results were improved after treatment for 3 months (pre- and after treatment, 6.70 vs 11.40; P<0.001). CONCLUSIONS Topical cyclosporine A 0.05% showed a satisfactory effect in long-standing prosthetic eye wearers. Ocular symptoms were markedly relieved in all subjects after treatment for 1 month.
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Affiliation(s)
- J W Han
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon,Korea
| | - J S Yoon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Jang
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon,Korea
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Shin YH, Kim HY, Kim YR, Yoon JS, Ko JS, Gwak MS, Kim GS, Lee SK. The comparison of femoral and radial arterial blood pressures during pediatric liver transplantation. Transplant Proc 2014; 45:1924-7. [PMID: 23769074 DOI: 10.1016/j.transproceed.2012.08.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 08/23/2012] [Indexed: 02/06/2023]
Abstract
BACKGROUND Orthotopic liver transplantation (OLT) is frequently associated with dramatic hemodynamic changes; thus, it is critical to accurately monitor blood pressure. Although comparisons between femoral arterial blood pressure (FABP) and radial arterial blood pressure (RABP) have been reported in adult liver recipients, we compared FABP with RABP in pediatric recipients. METHODS Thirty-five pediatric liver recipients younger than 13 years of age were included in this prospective, observational study. We measured simultaneous FABP and RABP in the femoral and radial arteries at nine time points during the procedure, including: baseline (after anesthetic induction); 1 hour thereafter; 30 minutes after the beginning of the anhepatic period as well as 0, 1, 3, 5, 15, and 60 minutes after graft reperfusion. RESULTS Of the 35 pediatric liver recipients, 2 infants and 1 13-month-old child were excluded from the analysis because of radial arterial catheter malfunction. The remaining 32 patients including 16 infants and 16 children all showed significantly higher systolic and mean FABP than RABP during most stages of pediatric OLT. Overall diastolic FABP measurements were similar to diastolic RABP throughout the study. CONCLUSIONS Systolic and mean FABP were significantly higher than RABP during most stages of pediatric OLT. Radial arterial catheter malfunctions were not uncommon during pediatric OLT. Our results indicated that it is useful to cannulate the femoral artery to accurately and reliably measure arterial blood pressure to detect hemodynamic instability during pediatric OLT.
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Affiliation(s)
- Y H Shin
- Department of Anesthesiology and Pain Management, Samsung Medical Center, Seoul, Korea
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Jang SY, Shin DY, Lee EJ, Lee SY, Yoon JS. Erratum: Relevance of TSH-receptor antibody levels in predicting disease course in Graves’ orbitopathy: comparison of the third-generation TBII assay and Mc4-TSI bioassay. Eye (Lond) 2013. [DOI: 10.1038/eye.2013.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Piao MY, Kim HJ, Seo JK, Park TS, Yoon JS, Kim KH, Ha JK. Effects of synchronization of carbohydrate and protein supply in total mixed ration with korean rice wine residue on ruminal fermentation, nitrogen metabolism and microbial protein synthesis in holstein steers. Asian-Australas J Anim Sci 2012; 25:1568-74. [PMID: 25049518 PMCID: PMC4093039 DOI: 10.5713/ajas.2012.12379] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Revised: 09/17/2012] [Accepted: 09/11/2012] [Indexed: 11/27/2022]
Abstract
Three Holstein steers in the growing phase, each with a ruminal cannula, were used to test the hypothesis that the synchronization of the hourly rate of carbohydrate and nitrogen (N) released in the rumen would increase the amount of retained nitrogen for growth and thus improve the efficiency of microbial protein synthesis (EMPS). In Experiment 1, in situ degradability coefficients of carbohydrate and N in feeds including Korean rice wine residue (RWR) were determined. In Experiment 2, three total mixed ration (TMR) diets having different rates of carbohydrate and N release in the rumen were formulated using the in situ degradability of the feeds. All diets were made to contain similar contents of crude protein (CP) and neutral detergent fiber (NDF) but varied in their hourly pattern of nutrient release. The synchrony index of the three TMRs was 0.51 (LS), 0.77 (MS) and 0.95 (HS), respectively. The diets were fed at a restricted level (2% of the animal’s body weight) in a 3×3 Latin-square design. Synchronizing the hourly supply of energy and N in the rumen did not significantly alter the digestibility of dry matter, organic matter, crude protein, NDF or acid detergent fiber (ADF) (p>0.05). The ruminal NH3-N content of the LS group at three hours after feeding was significantly higher (p<0.05) than that of the other groups; however, the mean values of ruminal NH3-N, pH and VFA concentration among the three groups were not significantly different (p>0.05). In addition, the purine derivative (PD) excretion in urine and microbial-N production (MN) among the three groups were not significantly different (p>0.05). In conclusion, synchronizing dietary energy and N supply to the rumen did not have a major effect on nutrient digestion or microbial protein synthesis (MPS) in Holstein steers.
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Affiliation(s)
- Min Yu Piao
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - Hyun J Kim
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - J K Seo
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - T S Park
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - J S Yoon
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - K H Kim
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - Jong K Ha
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
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Jeon HJ, Yoon JS, Cho SS, Kang KO. Indigo carmine-induced hypotension in patients undergoing general anaesthesia. Singapore Med J 2012; 53:e57-e59. [PMID: 22434307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Indigo carmine is a blue dye that is widely applied to localise ureteral orifices. It is generally believed to be a safe, biologically inert substance, and hypotensive reactions are extremely rare. However, we experienced three cases of indigo carmine-induced hypotension within a period of two weeks.
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Affiliation(s)
- H J Jeon
- Department of Anaesthesiology and Pain Medicine, Seoul Veterans Hospital, Dunchon 1-dong, Gangdong-gu, Seoul 134-060, Korea.
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Cho SK, Yoon JS, Lee MG, Lee DH, Lim LA, Park K, Park MS, Chung JY. Rifampin Enhances the Glucose-Lowering Effect of Metformin and Increases OCT1 mRNA Levels in Healthy Participants. Clin Pharmacol Ther 2011; 89:416-21. [DOI: 10.1038/clpt.2010.266] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yoon JS, Kim ES, Hwang DW, Choi JY, Kim BK, Park BB, Choi JH, Lee YY. Biologic characteristics of bone marrow-derived mesenchymal stem cells from a patient with thalassemia syndrome. Int J Lab Hematol 2010; 33:281-9. [PMID: 21199425 DOI: 10.1111/j.1751-553x.2010.01285.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Mesenchymal stem cells (MSCs) are capable of self-renewal and differentiating morphologically and functionally into several mesenchymal tissues. There have been contrasting data on whether MSCs are altered in various hematologic disorders. METHODS We isolated bone marrow (BM)-derived MSCs from a patient with thalassemia syndrome to compare phenotypic and functional characteristics to those from normal healthy donor. RESULTS No differences were observed between MSCs from thalassemia syndrome (T-MSCs) and those from normal healthy donor in terms of morphology, phenotype, karyotype, multidifferentiation capacity. In mixed lymphocyte reaction, T-MSCs strongly inhibited the proliferation of allogeneic T cells in association with reduced proportion of CD3(+), CD4(+), and CD8(+) cells. Furthermore, the fraction of Treg cells was increased under the culture with T-MSCs, suggesting that T-MSCs exert normal immunomodulatory function. In addition, T-MSCs expressed hematopoietic cytokines and supported hematopoiesis, which was comparable to those from normal BM-derived MSCs. CONCLUSION T-MSCs exhibited normal phenotype, karyotype as well as normal immunomodulatory function, and autologous MSCs from patients with thalassemia syndrome may be an attractive source of stem cell in terms of hematopoietic support as well as immunomodulatory activity.
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Affiliation(s)
- J S Yoon
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Kim SJ, Yoon JS, Park BK, Won SJ. Superior mesenteric artery syndrome in a tetraplegic patient, 11 years after a spinal cord injury: a case report. Spinal Cord 2010; 48:838-9. [DOI: 10.1038/sc.2010.24] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Abstract
INTRODUCTION The incidence of peroneal neuropathy (PN), occurring predominantly in the left leg, increases after the incorporation of intermittent pneumatic compression (IPC) devices among adult liver transplantation (OLT) recipients in our hospital. The aim of this study was to investigate the possible risk factors for PN and the reason for the left-leg predominance. METHODS We retrospectively reviewed the medical records of 501 OLT recipients. The patients were first divided into 2 groups, PN (n = 33) and non-PN (n = 468), to assess possible risk factors. The patients were then categorized into IPC (n = 262) and non-IPC (n = 239) groups according to the use of IPC devices. In a subsequent prospective study, we measured the degree and duration of the tilt of the operating table during OLT to investigate their relationship to the predominant left-leg PN. RESULTS The rate of IPC device use was significantly greater among the PN than non-PN group (78.8% vs 50.4%, P < .01). The incidence of PN was significantly higher among the IPC than non-IPC group (9.9% vs 2.9%, P < .01). The degree and duration of left tilt of the operating table were greater and longer than the right tilt. CONCLUSIONS The use of IPC devices during OLT increased the occurrence of PN and the left tilt of the operating table was strongly related to the predominant left-leg PN. Careful protection of the vulnerable point and minimization of the tilting of the operating table is advised during OLT, especially when IPC devices are used.
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Affiliation(s)
- J S Yoon
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul Korea
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Yoon JS, Park HJ, Yoo SY, Namkung W, Jo MJ, Koo SK, Park HY, Lee WS, Kim KH, Lee MG. Heterogeneity in the processing defect of SLC26A4 mutants. J Med Genet 2008; 45:411-9. [PMID: 18310264 DOI: 10.1136/jmg.2007.054635] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Mutations in the SLC26A4 gene are responsible for Pendred syndrome and non-syndromic hearing loss (DFNB4). This study analysed non-synonymous SLC26A4 mutations newly identified in East Asians, as well as three common mutations in Caucasians, to characterise their molecular pathogenic mechanisms and to explore the possibility of rescuing their processing defects. METHODS A total of 11 non-synonymous disease associated mutations were generated and their effects on protein processing and on ion transporting activities were examined. RESULTS Most of the mutations caused retention of the SLC26A4 gene product (pendrin) in the intracellular region, while wild-type pendrin reached the plasma membrane. Accordingly, these mutations abolished complex glycosylation and Cl(-)/HCO(3)(-) exchange activities of pendrin. However, significant heterogeneity in the processing of mutant pendrin molecules was observed. Each mutant protein exhibited a different cellular localisation, a different degree of N-glycosylation, and a different degree of sensitivity to the treatments that rescue processing defects. For example, H723R-pendrin, the most common mutation in East Asians, was mostly expressed in endoplasmic reticulum (ER), and its defects in protein processing and ion transporting activities were restored considerably by low temperature incubation. On the other hand, L236P-pendrin, the most common mutation in Caucasians, was mainly in the centrosomal region and was temperature insensitive. CONCLUSION These results indicate that the processing of pendrin mutant protein is determined by mutant specific mechanisms, and that a mutant specific method would be required to rescue the conformational defects of each folding mutant.
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Affiliation(s)
- J S Yoon
- Department of Pharmacology and Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
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Koh SB, Suh SI, Lee DH, Kim AR, Oh CH, Yoon JS, Weon BM, Seol SK, Pyun AR, Je JH, Hwu Y, Margaritondo G. Phase contrast radiography of Lewy bodies in Parkinson disease. Neuroimage 2006; 32:566-9. [PMID: 16766209 DOI: 10.1016/j.neuroimage.2006.04.217] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2005] [Revised: 02/23/2006] [Accepted: 04/05/2006] [Indexed: 11/24/2022] Open
Abstract
Parkinson's disease (PD), defined as a neurodegenerative disorder, is characterized by the loss of dopaminergic neurons and the presence of Lewy bodies in neurons. Morphological study of Lewy bodies is important to identify the causes and the processes of PD. Here, we investigate a possibility of phase contrast radiography using coherent synchrotron X-rays to explore the microscopic details of Lewy bodies in thick (approximately 3 mm) midbrain tissues. Autopsied midbrain tissues of a PD patient were sliced in 3 mm thickness and then examined using synchrotron X-rays from the 7B2 beamline of the Pohang Light Source. Refraction-enhanced phase contrast radiography and microtomography were adopted to identify dark core and dim edge of Lewy bodies in neurons. The morphology of Lewy bodies was clearly revealed by the phase contrast radiography in very thick (3 mm) midbrain tissues without any staining treatment. Three-dimensional volume rendered microtomography of the autopsied midbrain tissues demonstrates striking evidence that several Lewy bodies are agglomerated by dim edges in a neuron. We suggest that the phase contrast radiography could be a useful tool to morphologically investigate the causes or the processes in PD.
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Affiliation(s)
- S B Koh
- Department of Neurology, Korea University College of Medicine, Korea.
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Kim JC, Yi HK, Hwang PH, Yoon JS, Kim HJ, Kawano F, Ohira Y, Kim CK. Effects of cold-water immersion on VEGF mRNA and protein expression in heart and skeletal muscles of rats. ACTA ACUST UNITED AC 2005; 183:389-97. [PMID: 15799775 DOI: 10.1111/j.1365-201x.2005.01415.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM The effects of cold exposure on gene and protein expression of vascular endothelial growth factor (VEGF), in heart and skeletal muscles, were studied in male adult Wistar rats. METHODS Cold immersion was accomplished by submerging the rats in shoulder-deep water maintained at approximately 18 degrees C, either acutely (1 h) or chronically (1 h day(-1), 5 days week(-1) for 20 weeks). The expressions of VEGF mRNA and protein in heart, gastrocnemius, and soleus muscles were examined by Northern and Western blotting and competitive-polymerase chain reaction techniques. RESULTS The expressions of VEGF mRNA and protein were markedly increased in cardiac muscle of the cold-immersed group, particularly in the 1-hour exposure group, whereas VEGF mRNA and protein in gastrocnemius were decreased significantly after an acute exposure. Although the protein level in gastrocnemius remained low in the chronically exposed group, the expression of mRNA of VEGF(165) with chronic exposure in this group returned to the control level and that of VEGF(206) was 15% greater than that in controls. The expression of mRNA for VEGF(165) in soleus was also lowered by acute cold exposure, although that for VEGF(206) was stable. However, VEGF protein was increased by 50%. After 20 weeks, all of these parameters were increased over the levels found in the controls. CONCLUSION These results suggest that the VEGF gene may be a major regulatory factor in cardiac and skeletal muscle adaptation to the cold environment stimulating angiogenesis and thermogenesis.
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Affiliation(s)
- J C Kim
- Department of Physical Education, Chonbuk National University, Cheonju City, Korea
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Nikoloff D, Shim JC, Fairchild M, Patten N, Fijal BA, Koch WH, MacPherson A, Flockhart D, Yoon YR, Yoon JS, Kim YH, Shin JG. Association between CYP2D6 genotype and tardive dyskinesia in Korean schizophrenics. Pharmacogenomics J 2003; 2:400-7. [PMID: 12629505 DOI: 10.1038/sj.tpj.6500138] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2002] [Revised: 07/08/2002] [Accepted: 07/09/2002] [Indexed: 11/09/2022]
Abstract
The CYP2D6 gene codes for human cytochrome P450 2D6 enzyme, which is responsible for the metabolism of many psychiatric drugs. In schizophrenic patients treated with neuroleptics, decreased or loss of function CYP2D6 alleles may contribute to the development of tardive dyskinesia (TD), a movement disorder that frequently occurs with chronic neuroleptic treatment. The goal of this study was to determine whether the occurrence of TD is associated with CYP2D6 genotype in a cohort of Korean schizophrenics by employing a CYP450 GeneChip((R)) oligonucleotide microarray and PCR assays to screen for 19 CYP2D6 alleles. Our results revealed that males with at least one decreased or loss of function allele have a moderately greater chance of developing TD than males with only wild-type alleles. Female schizophrenics did not have a significantly greater chance of developing TD. Our results demonstrate the utility of CYP2D6 microarrays to assess genotype status in this Korean cohort.
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Affiliation(s)
- D Nikoloff
- Roche Molecular Systems, Pharmacogenetics Department, Alameda, CA, USA
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Han JY, Choi BG, Song DH, Ahn JG, Yoon JS, Lee KS. Vinorelbine-associated myelopathy in a patient who previously received paclitaxel: a case report. Med Oncol 2002; 18:95-7. [PMID: 11778975 DOI: 10.1385/mo:18:1:95] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Vinorelbine seems to cause less neurotoxicity than other vinca alkaloids because of its selective activity on mitotic cells over axonal microtubules. Clinical trials report very mild peripheral neurotoxicity with distal paresthesiae and there are no reports of myelopathy in these series of patients. The authors describe a patient who developed a rare event of myelopathy while on vinorelbine for non-small-cell lung cancer.
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Affiliation(s)
- J Y Han
- Departments of Internal Medicine, College of Medicine, the Catholic University of Korea, Seoul.
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Orencia MC, Yoon JS, Ness JE, Stemmer WP, Stevens RC. Predicting the emergence of antibiotic resistance by directed evolution and structural analysis. Nat Struct Biol 2001; 8:238-42. [PMID: 11224569 DOI: 10.1038/84981] [Citation(s) in RCA: 170] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Directed evolution can be a powerful tool to predict antibiotic resistance. Resistance involves the accumulation of mutations beneficial to the pathogen while maintaining residue interactions and core packing that are critical for preserving function. The constraint of maintaining stability, while increasing activity, drastically reduces the number of possible mutational combination pathways. To test this theory, TEM-1 beta-lactamase was evolved using a hypermutator E. coli-based directed evolution technique with cefotaxime selection. The selected mutants were compared to two previous directed evolution studies and a database of clinical isolates. In all cases, evolution resulted in the generation of the E104K/M182T/G238S combination of mutations ( approximately 500-fold increased resistance), which is equivalent to clinical isolate TEM-52. The structure of TEM-52 was determined to 2.4 A. G238S widens access to the active site by 2.8 A whereas E104K stabilizes the reorganized topology. The M182T mutation is located 17 A from the active site and appears to be a global suppressor mutation that acts to stabilize the new enzyme structure. Our results demonstrate that directed evolution coupled with structural analysis can be used to predict future mutations that lead to increased antibiotic resistance.
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Affiliation(s)
- M C Orencia
- Department of Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, USA
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Kim MN, Lee BY, Lee IM, Lee HS, Yoon JS. Toxicity and biodegradation of products from polyester hydrolysis. J Environ Sci Health A Tox Hazard Subst Environ Eng 2001; 36:447-463. [PMID: 11413830 DOI: 10.1081/ese-100103475] [Citation(s) in RCA: 17] [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] [Indexed: 05/23/2023]
Abstract
Toxicity of products from polyester hydrolysis such as succinic acid (SA), adipic acid (AA), mandelic acid (MA), terephthalic acid (TA), 1,4-butanediol (1,4-B), ethylene glycol (EG), styrene glycol (SG) and 1,4-cyclohexane dimethanol (1,4-C) was evaluated by phytotoxicity test on germination of young radish seeds and by cytotoxicity test on HeLa cells. The phytotoxicity test revealed SG > MA > 1,4-C > AA approximately SA > TA approximately EG > 1,4-B in order of decreasing toxicity taking into consideration the growth behavior after germination as well as the percentage of germination. Toxicity on HeLa cells decreased in slightly different order compared to that on young radish seeds, i.e. SG > 1,4-C > MA > TA > SA > AA > EG > 1,4-B. Tests for the phytotoxicity and for cytotoxicity indicated that the aromatic compounds were more harmful than the aliphatic ones. Each group of 4 strains which grew most rapidly on each agar plate containing SA, AA, MA, TA, 1,4-B, EG, SG and 1,4-C respectively as a sole carbon source was identified by the fatty acid methyl esters analysis. The modified Sturm test was carried out using the single isolated strain, an activated sludge or a mixed soil to measure the rate of mineralization of the compounds into carbon dioxide. The aliphatic compounds were mineralized more easily than the aromatic compounds. 1,4-C showed the most exceptionally slow degradation. A scrutiny of residual 1,4-C after degradation is required before polyesters containing 1,4-C could be classified into compostable because 1,4-C has detrimental effects on young radish seeds and HeLa cells and has a tendency to accumulate in the environment due to its slow degradability.
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Affiliation(s)
- M N Kim
- Department of Biology, Sangmyung University, Seoul 110-743, Korea.
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Abstract
Hidroacanthoma simplex is a benign tumor of the skin originating from or showing differentiation to the sweat glands. It grossly resembles seborrheic keratosis of Bowen's disease and histologically shows intraepidermal focal growth of epithelial cells. Malignant transformation of this tumor is rare. We report a case of pigmented hidroacanthoma with malignant transformation in a 67-year-old woman. There was a 20-year history of a skin lesion on the right thigh, which first appeared as a small verrucous papule, progressed to a dark-brown colored patch, and then to a pigmented plaque. Histologically, the primary tumor was composed of small squamoid cells with marked cellular atypia. Most of the tumor cells were located in the epidermis. Immunohistochemically, the cytoplasm of some tumor cells showed a positive reaction for epithelial membrane antigen, but not for either carcino-embryonic antigen or the S-100 protein.
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Affiliation(s)
- W J Lee
- Department of Dermatology, Chungnam National University School of Medicine, Taejon, Korea
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Abstract
A rare case of Behcet's disease associated with myelodysplastic syndrome (MDS) is described. A 50-year-old Korean female suffering recurrent oral ulcer, genital ulcer, fatigue, arthralgia in both knees and fever was diagnosed as Behcet's disease. The findings of bone marrow aspirates were consistent with refractory anemia, a subtype of myelodysplastic syndrome. Chromosomal analysis of bone marrow cells revealed 46,XX,-8,-20,+der(8)t(8;20)(p23;p10),+der(8) t(8;20)(p23;q10)[30]. The chromosomal changes found in this patient were different from those of previous reports, which mostly revealed trisomy 8. If anemia, low reticulocyte count and dyspoietic cells are sustained in Behcet's disease, physicians should be alert to the possibility of MDS with aberration in chromosome 8 and perform a bone marrow study for the proper diagnosis and treatment of the disease. We presented a case of Behcet's disease associated with MDS, which is the first Korean case.
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Affiliation(s)
- E J Oh
- Department of Clinical Pathology, Catholic University of Korea, Seoul, Korea.
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Cheong YP, Park SK, Son Y, Lee KC, Song YK, Yoon JS, Kim TY. Comparison of incidence of gastroesophageal reflux and regurgitation associated with timing of removal of the laryngeal mask airway: on appearance of signs of rejection versus after recovery of consciousness. J Clin Anesth 1999; 11:657-62. [PMID: 10680108 DOI: 10.1016/s0952-8180(99)00117-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
STUDY OBJECTIVES To compare the incidence of gastroesophageal reflux and regurgitation associated with laryngeal mask airway (LMA) removal when signs of rejecting the LMA, such as swallowing, struggling, and restlessness, were observed and when the patient could open his or her mouth on command. DESIGN Randomized clinical trial. SETTING Operating room and recovery room of a tertiary care referral hospital. PATIENTS 63 ASA physical status I and II adult patients scheduled for elective orthopedic surgery. INTERVENTIONS Using a standardized general anesthetic technique, patients were allocated randomly to Group A (n = 34; LMA removed when signs of rejection, such as swallowing, struggling, and restlessness, were observed) or Group B (n = 29; LMA removed when the patient could open his or her mouth on command). MEASUREMENTS AND MAIN RESULTS To detect gastroesophageal reflux throughout anesthesia, a pH monitoring probe was positioned in the lower esophagus on the day before surgery. To assess regurgitation during emergence, a gelatin capsule of methylene blue (50 mg) was swallowed prior to induction. At the end of anesthesia, episodes of reflux and regurgitation of gastric contents were analyzed/determined by pH below 4 and bluish staining of the pharynx and/or LMA, respectively. Physical events such as bucking, straining, and coughing during the arousal phase were recorded in both groups by an independent observer. The incidence of reflux (pH < 4) from the time of the appearance of rejection signs to LMA removal and the total incidence of reflux in Group B were significantly higher than in Group A (p < 0.05). Staining of the LMA and the pharynx by methylene blue was not observed in patients from either experimental group. The number of physical events in Group B during the arousal phase was significantly increased compared to Group A (p < 0.05). Considering all patients in Group A and Group B, physical events were associated with the occurrence of reflux (p < 0.05). Desaturation (SpO2 < 95%) and clinical evidence of aspiration of gastric contents did not occur in either group. CONCLUSION Maintenance of the LMA until the patient can open his or her mouth on command increases the incidence of gastroesophageal reflux.
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Affiliation(s)
- Y P Cheong
- Department of Anesthesiology, Wonkwang University School of Medicine, Iksan, Cheonbuk, South Korea.
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Affiliation(s)
- J S Yoon
- Department of Nutritional Sciences, University of California, Berkeley, USA
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Kim HN, Chung MH, Shim YJ, Yoon JS. Aided versus implanted speech recognition abilities in severe to profound postlingual deafness. Ann Otol Rhinol Laryngol Suppl 1995; 166:153-4. [PMID: 7668612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- H N Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Yonsei University, College of Medicine, Seoul, Korea
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Rockwood EJ, Kalenak JW, Plotnik JL, Yoon JS, Sculley L, Medendorp SV. Prospective ultrasonographic evaluation of intraoperative and delayed postoperative suprachoroidal hemorrhage from glaucoma filtering surgery. J Glaucoma 1995; 4:16-24. [PMID: 19920632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
PURPOSE To determine the incidence of, visual loss from, and perioperative risk factors for suprachoroidal hemorrhage (SCH) occurring during or after glaucoma filtering surgery. METHODS Contact B-Scan ultrasonography was used to evaluate at a median of 15 days postoperatively, one eye of 158 patients who underwent various glaucoma filtering procedures during an 18 month period. RESULTS Ultrasonography detected SCH in 13 patients (8.2%). SCH was recognized during surgery in two cases; 11 were detected postoperatively. Preexisting aphakia (odds ratio 12.9, 95% confidence interval 3.6 to 46.2) and intraoperative anterior vitrectomy (odds ratio 5.2, 95% confidence interval 1.2 to 22.4) were significantly associated with SCH. A significant negative association was found for combined cataract/glaucoma procedures with posterior chamber intraocular lens implantation (odds ratio 0.08, 95% confidence interval 0.01 to 0.69). No significant association between SCH and age, sex, race, diabetes, obesity, systemic hypertension, right versus left eye, type of glaucoma, surgeon, number of preoperative antiglaucoma medications, 5-fluorouracil/mitomycin-C therapy-or previous vitrectomy was found. For some risk factors the power of the study may not be sufficient to establish a correlation: with SCH. Two patients with SCH had serious visual acuity loss and 2 had mild visual acuity loss. Eyes of three patients were surgically drained of SCH. Most patients with SCH did not experience pain, and only one presented-with elevated intraocular pressure at the time SCH was recognized. CONCLUSION Pre-existing aphakia and concurrent vitrectomy were significant risk factors identified. Combined cataract and glaucoma filtering procedures correlated negatively with suprachoroidal hemorrhage. Most patients with suprachoroidal hemorrhage experienced little or no visual loss, pain, or intraocular pressure elevation.
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Affiliation(s)
- E J Rockwood
- Departments of Ophthamology and daggerBiostatistics and Epidemiology, Cleveland Clinic Foundation, Cleveland, Ohio, and *Department of Ophthalmology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
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Lee JH, Sung YH, Yoon JS, Park JK. Lipedematous scalp. Arch Dermatol 1994; 130:802-3. [PMID: 8002658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Winters LR, Yoon JS, Kalkwarf HJ, Davies JC, Berkowitz MG, Haas J, Roe DA. Riboflavin requirements and exercise adaptation in older women. Am J Clin Nutr 1992; 56:526-32. [PMID: 1503064 DOI: 10.1093/ajcn/56.3.526] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The effects of exercise training on riboflavin requirements and of riboflavin intake on endurance were examined in 14 women, 50-67 y of age, who participated in a 10-wk, two-period crossover exercise study at two riboflavin intakes, 0.15 micrograms/kJ (0.6 micrograms/kcal) and 0.22 micrograms/kJ (0.9 micrograms/kcal). Subjects exercised 20-25 min/d, 6 d/wk, for 4-wk periods on a cycle ergometer at 75-85% of their maximal heart rate. Riboflavin status was assessed by measuring the erythrocyte glutathione reductase activity coefficient (EGRAC) and urinary riboflavin excretion. Physical performance was evaluated by using a walking treadmill test to determine maximal oxygen capacity (VO2max) and anaerobic threshold by gas exchange (ATGE). Exercise significantly affected riboflavin status as EGRAC increased (P less than 0.001) and riboflavin excretion decreased (P less than 0.01) in both groups. VO2max increased significantly with exercise (P less than 0.01). However, changes in VO2max (L/min) and ATGE with exercise training were not different in the two groups. Riboflavin requirements of older women increased with exercise training, but increased riboflavin intake did not enhance improvements in endurance.
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Affiliation(s)
- L R Winters
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853
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Yoon JS, Mason JM, Valencia R, Woodruff RC, Zimmering S. Chemical mutagenesis testing in Drosophila. IV. Results of 45 coded compounds tested for the National Toxicology Program. Environ Mutagen 1985; 7:349-67. [PMID: 3930235 DOI: 10.1002/em.2860070310] [Citation(s) in RCA: 105] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Results from Drosophila mutagenicity tests of 45 chemical compounds assayed for the National Toxicology Program are presented. Nine compounds were judged positive and four equivocal in the sex-linked recessive lethal test. The nine positive compounds were acetin, allyl glycidyl ether, cyclophosphamide, 1,2-dibromo-3-chloropropane, 2,3-dibromo-1-propanol, dimethylcarbamyl chloride, 1,2-epoxy-butane, lasiocarpine, and N-nitrosopiperidine. The results for chloral hydrate, maleic hydrazide, propantheline bromide, and trifluralin were equivocal. Of the nine compounds positive in recessive lethal induction, only two--allyl glycidyl ether and dimethylcarbamyl chloride--failed to induce translocations. The remaining 32 were judged to be nonmutagenic under the conditions used.
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