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Jung JW, Kim KH, Yun J, Nam HS, Heo JH, Baik M, Yoo J, Kim J, Park H, Sohn SI, Hong JH, Kim BM, Kim DJ, Heo J, Bang OY, Seo WK, Chung JW, Lee KY, Jung YH, Lee HS, Ahn SH, Shin DH, Choi HY, Cho HJ, Baek JH, Kim GS, Seo KD, Kim SH, Song TJ, Han SW, Park JH, Choi JK, Kim YD. Effectiveness of endovascular treatment for in-hospital stroke vs. community-onset stroke: a propensity score-matched analysis. J Neurol 2024; 271:2684-2693. [PMID: 38376545 DOI: 10.1007/s00415-024-12232-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/27/2024] [Accepted: 01/27/2024] [Indexed: 02/21/2024]
Abstract
BACKGROUND The effectiveness of endovascular treatment for in-hospital stroke remains debatable. We aimed to compare the outcomes between patients with in-hospital stroke and community-onset stroke who received endovascular treatment. METHODS This prospective registry-based cohort study included consecutive patients who underwent endovascular treatment from January 2013 to December 2022 and were registered in the Selection Criteria in Endovascular Thrombectomy and Thrombolytic Therapy study and Yonsei Stroke Cohort. Functional outcomes at day 90, radiological outcomes, and safety outcomes were compared between the in-hospital and community-onset groups using logistic regression and propensity score-matched analysis. RESULTS Of 1,219 patients who underwent endovascular treatment, 117 (9.6%) had in-hospital stroke. Patients with in-hospital onset were more likely to have a pre-stroke disability and active cancer than those with community-onset. The interval from the last known well to puncture was shorter in the in-hospital group than in the community-onset group (155 vs. 355 min, p<0.001). No significant differences in successful recanalization or safety outcomes were observed between the groups; however, the in-hospital group exhibited worse functional outcomes and higher mortality at day 90 than the community-onset group (all p<0.05). After propensity score matching including baseline characteristics, functional outcomes after endovascular treatment did not differ between the groups (OR: 1.19, 95% CI 0.78-1.83, p=0.4). Safety outcomes did not significantly differ between the groups. CONCLUSION Endovascular treatment is a safe and effective treatment for eligible patients with in-hospital stroke. Our results will help physicians in making decisions when planning treatment and counseling caregivers or patients.
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Affiliation(s)
- Jae Wook Jung
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Kwang Hyun Kim
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Jaeseob Yun
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Hyo Suk Nam
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Ji Hoe Heo
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, South Korea
| | - Minyoul Baik
- Department of Neurology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, South Korea
| | - Joonsang Yoo
- Department of Neurology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, South Korea
| | - Jinkwon Kim
- Department of Neurology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, South Korea
| | - Hyungjong Park
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, South Korea
| | - Sung-Il Sohn
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, South Korea
| | - Jeong-Ho Hong
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, South Korea
| | - Byung Moon Kim
- Department of Radiology, Yonsei University College of Medicine, Seoul, South Korea
| | - Dong Joon Kim
- Department of Radiology, Yonsei University College of Medicine, Seoul, South Korea
| | - JoonNyung Heo
- Department of Radiology, Yonsei University College of Medicine, Seoul, South Korea
| | - Oh Young Bang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Woo-Keun Seo
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jong-Won Chung
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Kyung-Yul Lee
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Yo Han Jung
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Hye Sun Lee
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, South Korea
| | - Seong Hwan Ahn
- Department of Neurology, Chosun University School of Medicine, Gwangju, South Korea
| | - Dong Hoon Shin
- Department of Neurology, Gachon University Gil Medical Center, Incheon, South Korea
| | - Hye-Yeon Choi
- Department of Neurology, Kyung Hee University at Gangdong, Kyung Hee University College of Medicine, Seoul, South Korea
| | - Han-Jin Cho
- Department of Neurology, Pusan National University School of Medicine, Busan, South Korea
| | - Jang-Hyun Baek
- Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Gyu Sik Kim
- Department of Neurology, National Health Insurance Service Ilsan Hospital, Goyang, South Korea
| | - Kwon-Duk Seo
- Department of Neurology, National Health Insurance Service Ilsan Hospital, Goyang, South Korea
| | - Seo Hyun Kim
- Department of Neurology, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Tae-Jin Song
- Department of Neurology, College of Medicine, Seoul Hospital, Ewha Womans University, Seoul, South Korea
| | - Sang Won Han
- Department of Neurology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, South Korea
| | - Joong Hyun Park
- Department of Neurology, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, South Korea
| | - Jin Kyo Choi
- Department of Neurology, Seoul Medical Center, Seoul, South Korea
| | - Young Dae Kim
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, South Korea.
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Lee IH, Heo J, Lee H, Jeong J, Kim J, Han M, Yoo J, Kim J, Baik M, Park H, Jung JW, Kim YD, Nam HS. Long-term outcomes of patients with embolic stroke of undetermined source according to subtype. Sci Rep 2024; 14:9295. [PMID: 38653743 DOI: 10.1038/s41598-024-58292-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/27/2024] [Indexed: 04/25/2024] Open
Abstract
The prognosis of patients with embolic stroke of undetermined source (ESUS) may vary according to the underlying cause. Therefore, we aimed to divide ESUS into subtypes and assess the long-term outcomes. Consecutive patients with acute ischemic stroke who underwent a comprehensive workup, including transesophageal echocardiography and prolonged electrocardiography monitoring, were enrolled. We classified ESUS into minor cardioembolic (CE) ESUS, arteriogenic ESUS, two or more causes ESUS, and no cause ESUS. Arteriogenic ESUS was sub-classified into complex aortic plaque (CAP) ESUS and non-stenotic (< 50%) relevant artery plaque (NAP) ESUS. A total of 775 patients were enrolled. During 1286 ± 748 days follow-up, 116 major adverse cardiovascular events (MACE) occurred (4.2 events/100 patient-years). Among the ESUS subtypes, CAP ESUS was associated with the highest MACE frequency (9.7/100 patient-years, p = 0.021). Cox regression analyses showed that CAP ESUS was associated with MACE (hazard ratio 2.466, 95% confidence interval 1.305-4.660) and any stroke recurrence (hazard ratio 2.470, 95% confidence interval, 1.108-5.508). The prognosis of ESUS varies according to the subtype, with CAP ESUS having the worst prognosis. Categorizing ESUS into subtypes could improve patient care and refine clinical trials.
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Affiliation(s)
- Il Hyung Lee
- Department of Neurology, National Health Insurance Service Ilsan Hospital, Goyang, Republic of Korea
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
- Department of Neurology, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
| | - JoonNyung Heo
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hyungwoo Lee
- Department of Neurology, Ewha Womans University College of Medicine, Seoul, Republic of Korea
| | - JaeWook Jeong
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Joonho Kim
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Minho Han
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Joonsang Yoo
- Department of Neurology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Republic of Korea
| | - Jinkwon Kim
- Department of Neurology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Republic of Korea
| | - Minyoul Baik
- Department of Neurology, Yonsei University College of Medicine, Yongin Severance Hospital, Yongin, Republic of Korea
| | - Hyungjong Park
- Department of Neurology, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Jae Wook Jung
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Young Dae Kim
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Hyo Suk Nam
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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3
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Jung JW, Kim KH, Yun J, Kim YD, Heo J, Lee H, Choi JK, Lee IH, Lim IH, Hong SH, Kim BM, Kim DJ, Shin NY, Cho BH, Ahn SH, Park H, Sohn SI, Hong JH, Song TJ, Chang Y, Kim GS, Seo KD, Lee K, Chang JY, Seo JH, Lee S, Baek JH, Cho HJ, Shin DH, Kim J, Yoo J, Baik M, Lee KY, Jung YH, Hwang YH, Kim CK, Kim JG, Lee CJ, Park S, Jeon S, Lee HS, Kwon SU, Bang OY, Heo JH, Nam HS. Functional Outcomes Associated With Blood Pressure Decrease After Endovascular Thrombectomy. JAMA Netw Open 2024; 7:e246878. [PMID: 38630474 PMCID: PMC11024769 DOI: 10.1001/jamanetworkopen.2024.6878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Accepted: 02/19/2024] [Indexed: 04/19/2024] Open
Abstract
Importance The associations between blood pressure (BP) decreases induced by medication and functional outcomes in patients with successful endovascular thrombectomy remain uncertain. Objective To evaluate whether BP reductions induced by intravenous BP medications are associated with poor functional outcomes at 3 months. Design, Setting, and Participants This cohort study was a post hoc analysis of the Outcome in Patients Treated With Intra-Arterial Thrombectomy-Optimal Blood Pressure Control trial, a comparison of intensive and conventional BP management during the 24 hours after successful recanalization from June 18, 2020, to November 28, 2022. This study included 302 patients who underwent endovascular thrombectomy, achieved successful recanalization, and exhibited elevated BP within 2 hours of successful recanalization at 19 stroke centers in South Korea. Exposure A BP decrease was defined as at least 1 event of systolic BP less than 100 mm Hg. Patients were divided into medication-induced BP decrease (MIBD), spontaneous BP decrease (SpBD), and no BP decrease (NoBD) groups. Main Outcomes and Measures The primary outcome was a modified Rankin scale score of 0 to 2 at 3 months, indicating functional independence. Primary safety outcomes were symptomatic intracerebral hemorrhage within 36 hours and mortality due to index stroke within 3 months. Results Of the 302 patients (median [IQR] age, 75 [66-82] years; 180 [59.6%] men), 47 (15.6%)were in the MIBD group, 39 (12.9%) were in the SpBD group, and 216 (71.5%) were in the NoBD group. After adjustment for confounders, the MIBD group exhibited a significantly smaller proportion of patients with functional independence at 3 months compared with the NoBD group (adjusted odds ratio [AOR], 0.45; 95% CI, 0.20-0.98). There was no significant difference in functional independence between the SpBD and NoBD groups (AOR, 1.41; 95% CI, 0.58-3.49). Compared with the NoBD group, the MIBD group demonstrated higher odds of mortality within 3 months (AOR, 5.15; 95% CI, 1.42-19.4). The incidence of symptomatic intracerebral hemorrhage was not significantly different among the groups (MIBD vs NoBD: AOR, 1.89; 95% CI, 0.54-5.88; SpBD vs NoBD: AOR, 2.75; 95% CI, 0.76-9.46). Conclusions and Relevance In this cohort study of patients with successful endovascular thrombectomy after stroke, MIBD within 24 hours after successful recanalization was associated with poor outcomes at 3 months. These findings suggested lowering systolic BP to below 100 mm Hg using BP medication might be harmful.
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Affiliation(s)
- Jae Wook Jung
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Kwang Hyun Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Jaeseob Yun
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Young Dae Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - JoonNyung Heo
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Hyungwoo Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Jin Kyo Choi
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Il Hyung Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - In Hwan Lim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Soon-Ho Hong
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Byung Moon Kim
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Joon Kim
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - Na Young Shin
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - Bang-Hoon Cho
- Department of Neurology, Korea University Anam Hospital and College of Medicine, Seoul, Korea
| | - Seong Hwan Ahn
- Department of Neurology, Chosun University School of Medicine, Gwangju, Korea
| | - Hyungjong Park
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, Korea
| | - Sung-Il Sohn
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, Korea
| | - Jeong-Ho Hong
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, Korea
| | - Tae-Jin Song
- Department of Neurology, Seoul Hospital, Ewha Woman's University, College of Medicine, Seoul, Korea
| | - Yoonkyung Chang
- Department of Neurology, Mokdong Hospital, Ewha Woman's University College of Medicine, Seoul, Korea
| | - Gyu Sik Kim
- National Health Insurance Service, Ilsan Hospital, Goyang, Korea
| | - Kwon-Duk Seo
- National Health Insurance Service, Ilsan Hospital, Goyang, Korea
| | - Kijeong Lee
- National Health Insurance Service, Ilsan Hospital, Goyang, Korea
| | - Jun Young Chang
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung Hwa Seo
- Department of Neurology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Sukyoon Lee
- Department of Neurology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Jang-Hyun Baek
- Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Han-Jin Cho
- Department of Neurology, Pusan National University School of Medicine, Busan, Korea
| | - Dong Hoon Shin
- Department of Neurology, Gachon University Gil Medical Center, Incheon, Korea
| | - Jinkwon Kim
- Department of Neurology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Joonsang Yoo
- Department of Neurology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Minyoul Baik
- Department of Neurology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Kyung-Yul Lee
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yo Han Jung
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yang-Ha Hwang
- Department of Neurology, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, South Korea
| | - Chi Kyung Kim
- Department of Neurology, Korea University Guro Hospital and College of Medicine, Seoul, Korea
| | - Jae Guk Kim
- Department of Neurology, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejon, Korea
| | - Chan Joo Lee
- Department of Health Promotion, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Sungha Park
- Department of Health Promotion, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
- Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Soyoung Jeon
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Hye Sun Lee
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Sun U Kwon
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Oh Young Bang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Hoe Heo
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Hyo Suk Nam
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
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Kim AY, Woo W, Saxena A, Tanidir IC, Yao A, Kurniawati Y, Thakur V, Shin YR, Shin JI, Jung JW, Barron DJ. Treatment of hypoplastic left heart syndrome: a systematic review and meta-analysis of randomised controlled trials. Cardiol Young 2024; 34:659-666. [PMID: 37724575 DOI: 10.1017/s1047951123002986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
Abstract
BACKGROUND This meta-analysis aimed to consolidate existing data from randomised controlled trials on hypoplastic left heart syndrome. METHODS Hypoplastic left heart syndrome specific randomised controlled trials published between January 2005 and September 2021 in MEDLINE, EMBASE, and Cochrane databases were included. Regardless of clinical outcomes, we included all randomised controlled trials about hypoplastic left heart syndrome and categorised them according to their results. Two reviewers independently assessed for eligibility, relevance, and data extraction. The primary outcome was mortality after Norwood surgery. Study quality and heterogeneity were assessed. A random-effects model was used for analysis. RESULTS Of the 33 included randomised controlled trials, 21 compared right ventricle-to-pulmonary artery shunt and modified Blalock-Taussig-Thomas shunt during the Norwood procedure, and 12 regarded medication, surgical strategy, cardiopulmonary bypass tactics, and ICU management. Survival rates up to 1 year were superior in the right ventricle-to-pulmonary artery shunt group; this difference began to disappear at 3 years and remained unchanged until 6 years. The right ventricle-to-pulmonary artery shunt group had a significantly higher reintervention rate from the interstage to the 6-year follow-up period. Right ventricular function was better in the modified Blalock-Taussig-Thomas shunt group 1-3 years after the Norwood procedure, but its superiority diminished in the 6-year follow-up. Randomised controlled trials regarding medical treatment, surgical strategy during cardiopulmonary bypass, and ICU management yielded insignificant results. CONCLUSIONS Although right ventricle-to-pulmonary artery shunt appeared to be superior in the early period, the two shunts applied during the Norwood procedure demonstrated comparable long-term prognosis despite high reintervention rates in right ventricle-to-pulmonary artery shunt due to pulmonary artery stenosis. For medical/perioperative management of hypoplastic left heart syndrome, further randomised controlled trials are needed to deliver specific evidence-based recommendations.
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Affiliation(s)
- A Y Kim
- Division of Pediatric Cardiology, Department of Pediatrics, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - W Woo
- Department of Thoracic and Cardiovascular Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - A Saxena
- Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India
| | - I C Tanidir
- Department of Pediatric Cardiology, Basaksehir Cam and Sakura City Hospital, Istanbul, Turkey
| | - A Yao
- Department of Health Service Promotion, University of Tokyo, Japan
| | - Y Kurniawati
- Department of Pediatric Cardiology, National Cardiovascular Center Harapan Kita, Jakarta, Indonesia
| | - V Thakur
- Department of Pediatrics, Labatt Family Heart Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
| | - Y R Shin
- Department of Cardiovascular Surgery, Yonsei University College of Medicine, Seoul, Korea
| | - J I Shin
- Department of Pediatrics, Labatt Family Heart Center, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
- Severance Underwood Meta-research Center, Institute of Convergence Science, Yonsei University, Seoul, South Korea
| | - J W Jung
- Division of Pediatric Cardiology, Department of Pediatrics, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Korea
| | - D J Barron
- Division of Cardiovascular Surgery, Department of Surgery, The Hospital for Sick Children, University of Toronto, Toronto, ON, Canada
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5
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Nam HS, Kim YD, Heo J, Lee H, Jung JW, Choi JK, Lee IH, Lim IH, Hong SH, Baik M, Kim BM, Kim DJ, Shin NY, Cho BH, Ahn SH, Park H, Sohn SI, Hong JH, Song TJ, Chang Y, Kim GS, Seo KD, Lee K, Chang JY, Seo JH, Lee S, Baek JH, Cho HJ, Shin DH, Kim J, Yoo J, Lee KY, Jung YH, Hwang YH, Kim CK, Kim JG, Lee CJ, Park S, Lee HS, Kwon SU, Bang OY, Anderson CS, Heo JH. Intensive vs Conventional Blood Pressure Lowering After Endovascular Thrombectomy in Acute Ischemic Stroke: The OPTIMAL-BP Randomized Clinical Trial. JAMA 2023; 330:832-842. [PMID: 37668619 PMCID: PMC10481233 DOI: 10.1001/jama.2023.14590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 07/22/2023] [Indexed: 09/06/2023]
Abstract
Importance Optimal blood pressure (BP) control after successful reperfusion with endovascular thrombectomy (EVT) for patients with acute ischemic stroke is unclear. Objective To determine whether intensive BP management during the first 24 hours after successful reperfusion leads to better clinical outcomes than conventional BP management in patients who underwent EVT. Design, Setting, and Participants Multicenter, randomized, open-label trial with a blinded end-point evaluation, conducted across 19 stroke centers in South Korea from June 2020 to November 2022 (final follow-up, March 8, 2023). It included 306 patients with large vessel occlusion acute ischemic stroke treated with EVT and with a modified Thrombolysis in Cerebral Infarction score of 2b or greater (partial or complete reperfusion). Interventions Participants were randomly assigned to receive intensive BP management (systolic BP target <140 mm Hg; n = 155) or conventional management (systolic BP target 140-180 mm Hg; n = 150) for 24 hours after enrollment. Main Outcomes and Measures The primary outcome was functional independence at 3 months (modified Rankin Scale score of 0-2). The primary safety outcomes were symptomatic intracerebral hemorrhage within 36 hours and death related to the index stroke within 3 months. Results The trial was terminated early based on the recommendation of the data and safety monitoring board, which noted safety concerns. Among 306 randomized patients, 305 were confirmed eligible and 302 (99.0%) completed the trial (mean age, 73.0 years; 122 women [40.4%]). The intensive management group had a lower proportion achieving functional independence (39.4%) than the conventional management group (54.4%), with a significant risk difference (-15.1% [95% CI, -26.2% to -3.9%]) and adjusted odds ratio (0.56 [95% CI, 0.33-0.96]; P = .03). Rates of symptomatic intracerebral hemorrhage were 9.0% in the intensive group and 8.1% in the conventional group (risk difference, 1.0% [95% CI, -5.3% to 7.3%]; adjusted odds ratio, 1.10 [95% CI, 0.48-2.53]; P = .82). Death related to the index stroke within 3 months occurred in 7.7% of the intensive group and 5.4% of the conventional group (risk difference, 2.3% [95% CI, -3.3% to 7.9%]; adjusted odds ratio, 1.73 [95% CI, 0.61-4.92]; P = .31). Conclusions and Relevance Among patients who achieved successful reperfusion with EVT for acute ischemic stroke with large vessel occlusion, intensive BP management for 24 hours led to a lower likelihood of functional independence at 3 months compared with conventional BP management. These results suggest that intensive BP management should be avoided after successful EVT in acute ischemic stroke. Trial Registration ClinicalTrials.gov Identifier: NCT04205305.
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Affiliation(s)
- Hyo Suk Nam
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Young Dae Kim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - JoonNyung Heo
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Hyungwoo Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Wook Jung
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Jin Kyo Choi
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Il Hyung Lee
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - In Hwan Lim
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Soon-Ho Hong
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Minyoul Baik
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
| | - Byung Moon Kim
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - Dong Joon Kim
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - Na-Young Shin
- Department of Radiology, Yonsei University College of Medicine, Seoul, Korea
| | - Bang-Hoon Cho
- Department of Neurology, Korea University Anam Hospital and College of Medicine, Seoul, Korea
| | - Seong Hwan Ahn
- Department of Neurology, Chosun University School of Medicine, Gwangju, Korea
| | - Hyungjong Park
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, Korea
| | - Sung-Il Sohn
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, Korea
| | - Jeong-Ho Hong
- Department of Neurology, Brain Research Institute, Keimyung University School of Medicine, Daegu, Korea
| | - Tae-Jin Song
- Department of Neurology, Seoul Hospital, Ewha Womans University College of Medicine, Seoul, Korea
| | - Yoonkyung Chang
- Department of Neurology, Mokdong Hospital, Ewha Womans University College of Medicine, Seoul, Korea
| | - Gyu Sik Kim
- Department of Neurology, National Health Insurance Service, Ilsan Hospital, Goyang, Korea
| | - Kwon-Duk Seo
- Department of Neurology, National Health Insurance Service, Ilsan Hospital, Goyang, Korea
| | - Kijeong Lee
- Department of Neurology, National Health Insurance Service, Ilsan Hospital, Goyang, Korea
| | - Jun Young Chang
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung Hwa Seo
- Department of Neurology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Sukyoon Lee
- Department of Neurology, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Jang-Hyun Baek
- Department of Neurology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Han-Jin Cho
- Department of Neurology, Pusan National University School of Medicine, Busan, Korea
| | - Dong Hoon Shin
- Department of Neurology, Gachon University Gil Medical Center, Incheon, Korea
| | - Jinkwon Kim
- Department of Neurology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Joonsang Yoo
- Department of Neurology, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Korea
| | - Kyung-Yul Lee
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yo Han Jung
- Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Yang-Ha Hwang
- Department of Neurology, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Korea
| | - Chi Kyung Kim
- Department of Neurology, Korea University Guro Hospital and College of Medicine, Seoul, Korea
| | - Jae Guk Kim
- Department of Neurology, Daejeon Eulji Medical Center, Eulji University School of Medicine, Daejeon, Korea
| | - Chan Joo Lee
- Division of Cardiology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Sungha Park
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, Division of Cardiology, Yonsei University College of Medicine, Severance Hospital, Seoul, Korea
| | - Hye Sun Lee
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - Sun U. Kwon
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Oh Young Bang
- Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Craig S. Anderson
- The George Institute for Global Health, University of New South Wales, Sydney, Australia
| | - Ji Hoe Heo
- Department of Neurology, Yonsei University College of Medicine, Seoul, Korea
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Han M, Heo J, Lee IH, Kim JH, Lee H, Jung JW, Lim IH, Hong SH, Kim YD, Nam HS. Prognostic value of central blood pressure on the outcomes of embolic stroke of undetermined source. Sci Rep 2023; 13:9550. [PMID: 37308509 DOI: 10.1038/s41598-023-36151-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Accepted: 05/30/2023] [Indexed: 06/14/2023] Open
Abstract
We investigated the prognostic impact of central blood pressure (BP) on outcomes in patients with embolic stroke of undetermined source (ESUS). The prognostic value of central BP according to ESUS subtype was also evaluated. We recruited patients with ESUS and data on their central BP parameters (central systolic BP [SBP], central diastolic BP [DBP], central pulse pressure [PP], augmentation pressure [AP], and augmentation index [AIx]) during admission. ESUS subtype classification was arteriogenic embolism, minor cardioembolism, two or more causes, and no cause. Major adverse cardiovascular event (MACE) was defined as recurrent stroke, acute coronary syndrome, hospitalization for heart failure, or death. Over a median of 45.8 months, 746 patients with ESUS were enrolled and followed up. Patients had a mean age of 62.8 years, and 62.2% were male. Multivariable Cox regression analysis showed that central SBP and PP were associated with MACE. All-cause mortality was independently associated with AIx. In patients with no cause ESUS, central SBP and PP, AP, and AIx were independently associated with MACE. AP and AIx were independently associated with all-cause mortality (all p < 0.05). We demonstrated that central BP can predict poor long-term prognosis in patients with ESUS, especially those with the no cause ESUS subtype.
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Affiliation(s)
- Minho Han
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
| | - JoonNyung Heo
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
| | - Il Hyung Lee
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
| | - Joon Ho Kim
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
| | - Hyungwoo Lee
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
| | - Jae Wook Jung
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
| | - In Hwan Lim
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
| | - Soon-Ho Hong
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
| | - Young Dae Kim
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea
| | - Hyo Suk Nam
- Department of Neurology, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea.
- Integrative Research Center for Cerebrovascular and Cardiovascular Diseases, Yonsei University College of Medicine, 50-1 Yonsei-Ro, Seodaemoon-Gu, Seoul, 03722, South Korea.
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Lee AR, Park SB, Kim SW, Jung JW, Chun JH, Kim J, Kim YR, Lazarte JMS, Jang HB, Thompson KD, Jung M, Ha MW, Jung TS. Membrane vesicles (MVs) from antibiotic-resistant Staphylococcus aureus transfer antibiotic-resistance to antibiotic-susceptible Escherichia coli. J Appl Microbiol 2022; 132:2746-2759. [PMID: 35019198 PMCID: PMC9306644 DOI: 10.1111/jam.15449] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 11/04/2021] [Revised: 01/03/2022] [Accepted: 01/08/2022] [Indexed: 11/03/2022]
Abstract
AIM Bacteria naturally produce membrane vesicles (MVs), which have been shown to contribute to the spread of multi-drug resistant bacteria (MDR) by delivering antibiotic-resistant substances to antibiotic-susceptible bacteria. Here, we aim to show that MVs from Gram-positive bacteria are capable of transferring β-lactam antibiotic-resistant substances to antibiotic-sensitive Gram-negative bacteria. MATERIALS AND METHODS MVs were collected from a methicillin-resistant strain of Staphylococcus aureus (MRSA) and vesicle-mediated fusion with antimicrobial-sensitive Escherichia coli (RC85). It was performed by exposing the bacteria to the MVs to develop antimicrobial-resistant E. coli (RC85-T). RESULTS The RC85-T exhibited a higher resistance to β-lactam antibiotics compared to the parent strain. Although the secretion rates of the MVs from RC85-T and the parent strain were nearly equal, the β-lactamase activity of the MVs from RC85-T was 12-times higher than that of MVs from the parent strain, based on equivalent protein concentrations. Moreover, MVs secreted by RC85-T were able to protect β-lactam-susceptible E. coli from β-lactam antibiotic-induced growth inhibition in a dose-dependent manner. CONCLUSION MVs play a role in transferring substances from Gram-positive to Gram-negative bacteria, shown by the release of MVs from RC85-T that were able to protect β-lactam-susceptible bacteria from β-lactam antibiotics. SIGNIFICANCE AND IMPACT OF STUDY MVs are involved in the emergence of antibiotic resistant strains in a mixed bacterial culture, helping us to understand how the spread of multidrug resistant bacteria could be reduced.
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Affiliation(s)
- Ae Rin Lee
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si, Gyeongsangnam-do, Republic of Korea, 52828
| | - Seong Bin Park
- Coastal Research Extension Center, Mississippi State University, Mississippi State, MS, 39762, USA
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si, Gyeongsangnam-do, Republic of Korea, 52828
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si, Gyeongsangnam-do, Republic of Korea, 52828
| | - Jin Hong Chun
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si, Gyeongsangnam-do, Republic of Korea, 52828
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si, Gyeongsangnam-do, Republic of Korea, 52828
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si, Gyeongsangnam-do, Republic of Korea, 52828
| | - Jassy Mary S Lazarte
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si, Gyeongsangnam-do, Republic of Korea, 52828
| | - Ho Bin Jang
- Department of Microbiology, Institute for Viral Diseases, College of Medicine, Korea University, Seoul, Republic of Korea, 02841
| | - Kim D Thompson
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ, UK
| | - Myunghwan Jung
- Department of Microbiology and Department of Convergence Medical Science, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Min Woo Ha
- College of Pharmacy, Jeju National University, Jeju, 63243, Republic of Korea
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si, Gyeongsangnam-do, Republic of Korea, 52828.,Centre for Marine Bioproducts Development, Flinders University, Bedford Park, SA, 5042, Australia
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Chun JH, Jung JW, Kim YR, Lazarte JMS, Kim SW, Kim J, Thompson KD, Kim HJ, Jung TS. Poly (I:C)-Potentiated Vaccination Enhances T Cell Response in Olive Flounder ( Paralichthys olivaceus) Providing Protection against Viral Hemorrhagic Septicemia Virus (VHSV). Vaccines (Basel) 2021; 9:482. [PMID: 34068522 PMCID: PMC8151365 DOI: 10.3390/vaccines9050482] [Citation(s) in RCA: 3] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 12/16/2022] Open
Abstract
Viral hemorrhagic septicemia (VHS), caused by viral hemorrhagic septicemia virus (VHSV), is a viral disease affecting teleosts, and is the major cause of virus-related deaths in olive flounder (Paralichthys olivaceus). Research has focused on ways to control VHS, and recently, the use of polyinosinic-polycytidylic acid poly (I:C)-potentiated vaccination has been investigated, whereby fish are injected with poly (I:C) and then with live pathogenic virus, resulting in a significant decrease in VHSV-related mortality. T cell responses were investigated in the present study after vaccinating olive flounder with poly (I:C)-potentiated vaccination to understand the ability of poly (I:C) to induce T cell immunity. Stimulation of T cell responses with the poly (I:C)-potentiated vaccination was confirmed by examining levels of CD3+ T cells, CD4-1+ T cells and CD4-2+ T cells. Higher levels of CD4-2+ T cells were found in vaccinated fish than CD4-1+ T cells, believed to result from a synergistic effect between poly (I:C) administration and pathogenic VHSV immunization. More importantly, the role of CD4-2+ T cells in the antiviral response was clearly evident. The results of this study suggest that the outstanding protection obtained with the poly (I:C)-potentiated vaccination is due to the robust immune response initiated by the CD4-2+ T cells.
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Affiliation(s)
- Jin Hong Chun
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Jassy Mary S. Lazarte
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
| | - Kim D. Thompson
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian EH26 0PZ, UK;
| | - Hyoung Jun Kim
- Pathology Research Division, OIE Reference Laboratory for Viral Haemorrhagic Septicaemia (VHS), National Institute of Fisheries Science, 216, Gijanghaean-ro, Gijang-eup, Busan 46083, Korea;
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.H.C.); (J.W.J.); (Y.R.K.); (J.M.S.L.); (S.W.K.); (J.K.)
- Centre for Marine Bioproducts Development, Flinders University, Bedford Park, SA 5042, Australia
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Jung JW, Lee AR, Kim J, Kim YR, Lazarte JMS, Lee JS, Thompson KD, Kim H, Jung TS. Elucidating the Functional Roles of Helper and Cytotoxic T Cells in the Cell-Mediated Immune Responses of Olive Flounder ( Paralichthys olivaceus). Int J Mol Sci 2021; 22:ijms22020847. [PMID: 33467734 PMCID: PMC7829854 DOI: 10.3390/ijms22020847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 01/12/2021] [Accepted: 01/12/2021] [Indexed: 11/29/2022] Open
Abstract
In higher vertebrates, helper and cytotoxic T cells, referred to as CD4 and CD8 T lymphocytes, respectively, are mainly associated with adaptive immunity. The adaptive immune system in teleosts involves T cells equivalent to those found in mammals. We previously generated monoclonal antibodies (mAbs) against olive flounder (Paralichthys olivaceus) CD4 T cells, CD4-1 and CD4-2, and used these to describe the olive flounder’s CD4 Tcell response during a viral infection. In the present study, we successfully produced mAbs against CD8 T lymphocytes and their specificities were confirmed using immuno-blotting, immunofluorescence staining, flow cytometry analysis andreverse transcription polymerase chain reaction (RT-PCR). The results showed that these mAbs are specific for CD8 T lymphocytes. We also investigated variations in CD4 and CD8 T cells populations, and analyzed the expression of immune-related genes expressed by these cells in fish infected with nervous necrosis virus or immunized with thymus dependent and independent antigens. We found that both CD4 and CD8 T lymphocyte populations significantly increased in these fish and Th1-related genes were up-regulated compared to the control group. Collectively, these findings suggest that the CD4 and CD8 T lymphocytes in olive flounder are similar to the helper and cytotoxic T cells found in mammals, and Th1 and cytotoxic immune responses are primarily involved in the early adaptive immune response against extracellular antigens.
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Affiliation(s)
- Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.W.J.); (A.R.L.); (J.K.); (Y.R.K.); (J.M.S.L.); (J.S.L.)
| | - Ae Rin Lee
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.W.J.); (A.R.L.); (J.K.); (Y.R.K.); (J.M.S.L.); (J.S.L.)
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.W.J.); (A.R.L.); (J.K.); (Y.R.K.); (J.M.S.L.); (J.S.L.)
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.W.J.); (A.R.L.); (J.K.); (Y.R.K.); (J.M.S.L.); (J.S.L.)
| | - Jassy Mary S. Lazarte
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.W.J.); (A.R.L.); (J.K.); (Y.R.K.); (J.M.S.L.); (J.S.L.)
| | - Jung Suk Lee
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.W.J.); (A.R.L.); (J.K.); (Y.R.K.); (J.M.S.L.); (J.S.L.)
| | - Kim D. Thompson
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik EH26 0PZ, UK;
| | - Hyeongsu Kim
- Inland Aquaculture Research, National Institute of Fisheries Science, #55, 25gil, Yeomyeong-ro, Jinhae-gu, Changwon-si 51688, Korea;
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501-201, 501, Jinju-daero, Jinju-si 52828, Korea; (J.W.J.); (A.R.L.); (J.K.); (Y.R.K.); (J.M.S.L.); (J.S.L.)
- Centre for Marine Bioproducts Development, Flinders University, Bedford Park 5042, Australia
- Correspondence: ; Tel.: +82-10-8545-9310; Fax: +82-55-762-6733
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Abstract
Cerebral venous thrombosis (CVT) is an uncommon cause of stroke that mainly affects young adults with known risk factors of prothrombotic conditions, pregnancy, infection, malignancy, and drugs. Dutasteride is a 5α-reductase inhibitor that is used for benign prostate hypertrophy and androgenetic alopecia. To date, CVT caused by dutasteride use has not been reported. A 25-year-old male presented with headache and diplopia. He had taken 0.5 mg of dutasteride every other day for 9 months to treat alopecia. A headache developed 7 months after he started taking medication, and horizontal diplopia occurred 1 month after the onset of headache. Fundus examination showed bilateral papilledema. Brain magnetic resonance imaging showed thrombosis in the left sigmoid and transverse sinuses. Headache and diplopia improved after discontinuing dutasteride and starting anticoagulation. The results from this case report indicated dutasteride as a potential cause of CVT. Presumably, the increased estrogen level due to dutasteride use caused the formation of a thrombus.
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Affiliation(s)
- Bo Kyu Choi
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - Kyeongyeol Cheon
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - Bang Hoon Cho
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - Jae Wook Jung
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung Yul Lee
- Department of Neurology, Gangnam Severance Hospital, Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea.
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Abstract
SETTING: In Korea, the price of a pack of cigarettes increased 80% from US$2.2 to US$4 in 2015. The smoking rate decreased in 2015. However, it rebounded in the following year.OBJECTIVE: To evaluate the characteristics associated with this rebound in smoking rate following the price increase.DESIGN: We analysed the KNHANES (Korean National Health and Nutrition Examination Survey) data of 44 015 participants to evaluate current smoking rate and the proportion of smokers planning to quit within 6 months from 2010 to 2016. We also performed focused analysis of 18 303 participants between 2014 and 2016 KNHANES to determine the current smoking rate according to their demographic and socio-economic characteristics.RESULTS: Individuals who were older, female, unemployed, had a low household income or a shorter total smoking period, or smoked less per day were more likely to stop or reduce smoking after the price increase. The current smoking rate increased to 18.8% in 2016 from 17.7% in 2015; this difference was significant in men, those in the lower-middle quartile of household income, those with a middle-school or college education, and those who were employed.CONCLUSION: The rebound in smoking after the price increase was significantly related to the individual's sex, income, education and employment status.
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Affiliation(s)
- J W Jung
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
| | - J Y Kim
- Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Republic of Korea
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Jung JW, Lee JS, Kim J, Im SP, Kim SW, Lazarte JMS, Kim YR, Chun JH, Ha MW, Kim NN, Thompson KD, Kim HJ, Jung TS. Involvement of CD4-1 T cells in the cellular immune response of olive flounder (Paralichthys olivaceus) against viral hemorrhagic septicemia virus (VHSV) and nervous necrosis virus (NNV) infection. Dev Comp Immunol 2020; 103:103518. [PMID: 31605716 DOI: 10.1016/j.dci.2019.103518] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/08/2019] [Accepted: 10/08/2019] [Indexed: 06/10/2023]
Abstract
The occurrence of CD4 helper T cells has already been established for a number of teleost species, though, it has not been possible to analyze these responses at a cellular level due to a large lack of appropriate monoclonal antibodies (mAbs). In the present study, we produced a mAb against olive flounder (Paralichthys olivaceus) CD4-1 lymphocyte to investigate the functional activity of the cells to improve our understanding of the T cell response in this species. This mAb is specifically able to detect CD4-1 lymphocytes in olive flounder proved by immunofluorescence staining and RT-PCR analysis. In flow cytometry analysis, the number of CD4-1-positive lymphocytes was observed to gradually increase from 3 days post infection (dpi) and then reach peak at 7 dpi against two viruses challenge. As a conclusion, both the basic properties of CD4-1 T cells and its response to viral infections in olive flounder are very similar to the helper T cells in terrestrial animals.
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Affiliation(s)
- Jae Wook Jung
- Lab. of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju, Gyeongnam, 52828, South Korea
| | - Jung Seok Lee
- Lab. of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju, Gyeongnam, 52828, South Korea
| | - Jaesung Kim
- Lab. of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju, Gyeongnam, 52828, South Korea
| | - Se Pyeong Im
- Lab. of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju, Gyeongnam, 52828, South Korea
| | - Si Won Kim
- Lab. of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju, Gyeongnam, 52828, South Korea
| | - Jassy Mary S Lazarte
- Lab. of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju, Gyeongnam, 52828, South Korea
| | - Young Rim Kim
- Lab. of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju, Gyeongnam, 52828, South Korea
| | - Jin Hong Chun
- Lab. of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju, Gyeongnam, 52828, South Korea
| | - Min Woo Ha
- College of Pharmacy, Gyeongsang National University, 501, Jinju-daero, Jinju, Gyeongnam, 52828, South Korea
| | - Na Na Kim
- Inland Aquaculture Research Center, NIFS, Changwon, 645-806, South Korea
| | - Kim D Thompson
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, Midlothian, EH26 0PZ, UK
| | - Hyoung Jun Kim
- Lab. of Aquatic Animal Quarantine, General Service Division, National Fishery Products Quality Management Service, Busan 49111, South Korea.
| | - Tae Sung Jung
- Lab. of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, 501 Jinju, Gyeongnam, 52828, South Korea; Centre for Marine Bioproducts Development, Flinders University, Bedford Park, Adelaide, SA, 5042, Australia.
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Jung JW. 114 A case of progressive wall thinning of apical myocardium in 5 year- old boy with hypertrophic cardiomyopathy. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Hypertrophic cardiomyopathy (HCM) is defined by the presence of increased left ventricular (LV) wall thickness that is not explained by abnormal loading conditions without a priori assumptions about etiology or myocardial pathology even in neonate, children and adults. The diagnosis of HCM is mainly the detection of increased LV wall thickness by any imaging modality. Due to its diverse etiology, the disease phenotype includes chest pain, palpitation, syncope and heart failure. In most patients, there is a life-long process of progressive and adverse cardiac remodeling, characterized by myocardial fibrosis and wall thinning. However, there was no report about cardiac remodeling of progressive wall thinning in children with HCMP.
A 5 year-old boy was evaluated due to familiar HCMP, and finally confirmed with HCMP by echocardiography. His father was diagnosed as asymmetric HCMP and treated with septal alcohol ablation 3 years ago. His family referred for genetic counselling. His symptom was vague because he was very young. Initial electrocardiographic finding was normal sinus rhythm with left ventricular hypertrophy. Ambulatory electrocardiography (ECG) showed isolated premature ventricular contraction. Initial echocardiographic findings revealed asymmetric septal hypertrophy with diffuse hypertrophied LV myocardium, systolic anterior motion of anterior leaflet of mitral valve without LV outflow tract obstruction (LVOTO) and only mild dynamic obstruction on mid-septum of LV. His cardiovascular magnetic resonance imaging (CMR) showed similar to echocardiographic findings and no late gadolinium enhancement (LGE). He started to take medication with beta blocker, and later addon verapamil. After 3 years later, his ambulatory ECG showed non-sustained ventricular tachycardia of 4 episodes. Follow-up echocardiographic findings revealed progressive septal wall thickness from 13mm to 19 mm, marked LVOTO with peak pressure gradient of 128 mmHg and profound dynamic obstruction on mid-septum of LV. Follow-up CMR imaging showed additional progressive apical wall thinning without suspicious or definite LGE on any other myocardium. Urgently he undertook the implantation of implantable cardioverter defibrillatorsfor prevention of sudden cardiac death. Now he is listing and waiting for heart transplantation. Cardiac remodeling is progressively life-long process in most HCMP, but in this case with pediatric HCMP, even though he took medical treatment its progression was rapid cardiac remodeling.
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Affiliation(s)
- J W Jung
- Yonsei University College of Medicine, Pediatric cardiology, Seoul, Korea (Republic of)
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Yoon JP, Chung SW, Jung JW, Lee YS, Kim KI, Park GY, Kim HM, Choi JH. Is a Local Administration of Parathyroid Hormone Effective to Tendon-to-Bone Healing in a Rat Rotator Cuff Repair Model? J Orthop Res 2020; 38:82-91. [PMID: 31441073 DOI: 10.1002/jor.24452] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Accepted: 08/02/2019] [Indexed: 02/04/2023]
Abstract
To evaluate the effect of local parathyroid hormone (PTH) administration on rotator cuff tendon-to-bone healing in a rat model compared with systemic PTH injection and untreated controls. PTH-alginate scaffold was prepared and sustained release of PTH was confirmed. Bilateral supraspinatus tendon repairs were performed in 39 rats (group 1, supraspinatus repair only; group 2, supraspinatus repair with systemic PTH injection; group 3, supraspinatus repair with local PTH administration via an absorbable scaffold; n = 13 each). Biomechanical (cross-sectional area, mode of failure, load to failure, and ultimate stress: right side) and histological analyses (hematoxylin and eosin stain, Masson's Trichrome stain Picrosirius red stain, Immunohistochemistry for BMP2, PTH1R, ColI, and ColIII: Left side) were performed to evaluate tendon-to-bone healing quality at 8 weeks after repair, and blood test (osteocalcin and procollagen type I N-terminal pro-peptide [PINP] levels) was performed in all rats. There was no intergroup difference in the healing failure rate (p = 0.910) or failure mode (p = 0.585). Biomechanically, subjects in groups 2 and 3 exhibited significantly larger cross-sectional areas and higher ultimate failure loads and ultimate stress than those in group 1 (all p < 0.05); however, no differences were noted between groups 2 and 3 (all p > 0.05). Histologically, groups 2 and 3 exhibited more organized tendon-to-bone interface structures with higher density, parallel orientation, and collagen fiber continuity than group 1 (all p < 0.05 except collagen fiber continuity in group 1 vs. 2); however, no differences in histological parameters between groups 2 and 3 (all p > 0.05). The protein levels of bone morphogenic protein 2, PTH 1 receptor, and collagen I and III and the serum level of PINP were increased in groups 2 and 3 versus group 1 (all p < 0.05) without showing differences between groups 2 and 3 (all p > 0.05). Local PTH administration using an absorbable scaffold improved the biomechanical and histological outcomes of rotator cuff tendon-to-bone healing comparable with systemic PTH injection at 8 weeks after repair in a rat model. © 2019 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 38:82-91, 2020.
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Affiliation(s)
- Jong Pil Yoon
- Department of Orthopaedic Surgery, College of Medicine, Kyung Pook National University, Daegu, Korea
| | - Seok Won Chung
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - Jae Wook Jung
- Department of Orthopaedic Surgery, College of Medicine, Kyung Pook National University, Daegu, Korea
| | - Yong-Soo Lee
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - Kwang-Il Kim
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul, 05030, Korea
| | - Ga Young Park
- Department of Bio-Fibers and Materials Science, College of Agriculture and Life Science, School of Medicine, KyungPook National University, Daegu, Korea
| | - Hun-Min Kim
- Department of Bio-Fibers and Materials Science, College of Agriculture and Life Science, School of Medicine, KyungPook National University, Daegu, Korea
| | - Jin-Hyun Choi
- Department of Bio-Fibers and Materials Science, College of Agriculture and Life Science, School of Medicine, KyungPook National University, Daegu, Korea
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Jung JW, Lee JS, Kim J, Im SP, Kim SW, Lazarte JMS, Kim YR, Chun JH, Ha MW, Kim HS, Thompson KD, Jung TS. Characterization of Hagfish ( Eptatretus burgeri) Variable Lymphocyte Receptor-Based Antibody and Its Potential Role in the Neutralization of Nervous Necrosis Virus. J Immunol 2019; 204:718-725. [PMID: 31836656 DOI: 10.4049/jimmunol.1900675] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 11/18/2019] [Indexed: 12/13/2022]
Abstract
The variable lymphocyte receptor (VLR) mediates the humoral immune response in jawless vertebrates, including lamprey (Petromyzon marinus) and hagfish (Eptatretus burgeri). Hagfish VLRBs are composed of leucine-rich repeat (LRR) modules, conjugated with a superhydrophobic C-terminal tail, which contributes to low levels of expression in recombinant protein technology. In this study, we screened Ag-specific VLRBs from hagfish immunized with nervous necrosis virus (NNV). The artificially multimerized form of VLRB was constructed using a mammalian expression system. To enhance the level of expression of the Ag-specific VLRB, mutagenesis of the VLRB was achieved in vitro through domain swapping of the LRR C-terminal cap and variable LRR module. The mutant VLRB obtained, with high expression and secretion levels, was able to specifically recognize purified and progeny NNV, and the Ag binding ability of this mutant was increased by at least 250-fold to that of the nonmutant VLRB. Furthermore, preincubation of the Ag-specific VLRB with NNV reduced the infectivity of NNV in E11 cells in vitro, and in vivo experiment. Our results suggest that the newly developed Ag-specific VLRB has the potential to be used as diagnostic and therapeutic reagents for NNV infections in fish.
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Affiliation(s)
- Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
| | - Jung Seok Lee
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
| | - Se Pyeong Im
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
| | - Jassy Mary S Lazarte
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
| | - Jin Hong Chun
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea
| | - Min Woo Ha
- College of Pharmacy, Gyeongsang National University, Jinju-daero, Jinju, Gyeongnam 52828, South Korea
| | - Hyeong Su Kim
- Inland Aquaculture Research Center, National Institute of Fisheries Science, Changwon 645-806, South Korea
| | - Kim D Thompson
- Moredun Research Institute, Pentlands Science Park, Penicuik, Midlothian EH26 0PZ, United Kingdom; and
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Research Institute of Natural Science, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 52828, South Korea; .,Centre for Marine Bioproducts Development, College of Medicine and Public Health, Flinders University, Bedford Park, Adelaide, South Australia 5042, Australia
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Yoon JP, Kim DH, Jung JW, Lee CH, Min S, Lee HJ, Kim HJ. Patient-specific Guides Using 3-dimensional Reconstruction Provide Accuracy and Reproducibility in Reverse Total Shoulder Arthroplasty. Clin Shoulder Elb 2019; 22:16-23. [PMID: 33330189 PMCID: PMC7713874 DOI: 10.5397/cise.2019.22.1.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 10/10/2018] [Accepted: 10/31/2018] [Indexed: 11/25/2022] Open
Abstract
Background We aimed to evaluate whether the use of our novel patient-specific guide (PSG) with 3-dimensional reconstruction in reverse total shoulder arthroplasty (RTSA) would allow accurate and reliable implantation of the glenoid and humeral components. Methods 20 fresh-frozen cadaveric shoulders were used. The PSG group (n=10) and conventional group (n=10) was evaluated the accuracy and reproducibility of implant positioning between before and after surgery on the computed tomography image. Results The superoinferior and anteroposterior offset in the glenoid component were 0.42 ± 0.07, 0.50 ± 0.08 in the conventional group and 0.45 ± 0.03, 0.46 ± 0.02 in the PSG group. The inclination and version angles were -1.93° ± 4.31°, 2.27° ± 5.91° and 0.46° ± 0.02°, 3.38° ± 2.79°. The standard deviation showed a smaller difference in the PSG group. The anteroposterior and lateromedial humeral canal center offset in the humeral component were 0.45 ± 0.12, 0.48 ± 0.15 in the conventional group and 0.46 ± 0.59 (p=0.794), 0.46 ± 0.06 (p=0.702) in the PSG group. The PSG showed significantly better humeral stem alignment. Conclusions The use of PSGs with 3-dimensional reconstruction reduces variabilities in glenoid and humerus component positions and prevents extreme positioning errors in RTSA.
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Affiliation(s)
- Jong Pil Yoon
- Department of Orthopaedic Surgery, Kyungpook National University Hospital, Daegu, Korea
| | - Dong Hyun Kim
- Department of Orthopaedic Surgery, Kyungpook National University Hospital, Daegu, Korea
| | - Jae Wook Jung
- Department of Orthopaedic Surgery, Kyungpook National University Hospital, Daegu, Korea
| | - Chang-Hwa Lee
- Department of Orthopaedic Surgery, Kyungpook National University Hospital, Daegu, Korea
| | - Seunggi Min
- Department of Orthopaedic Surgery, Kyungpook National University Hospital, Daegu, Korea
| | - Hyun Joo Lee
- Department of Orthopaedic Surgery, Kyungpook National University Hospital, Daegu, Korea
| | - Hee-June Kim
- Department of Orthopaedic Surgery, Kyungpook National University Hospital, Daegu, Korea
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Kim DH, Min SG, Yoon JP, Park GY, Choi JH, Jung JW, Lee HJ, Kim HJ, Chung SW, Kim JY. Mechanical Augmentation With Absorbable Alginate Sheet Enhances Healing of the Rotator Cuff. Orthopedics 2019; 42:e104-e110. [PMID: 30540880 DOI: 10.3928/01477447-20181206-04] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 08/08/2018] [Indexed: 02/03/2023]
Abstract
For anatomical restoration of a repaired rotator cuff, mechanical augmentation of the repaired structure is essential. Using histological and biomechanical evaluation in a rat model, the authors sought to determine the efficacy of an absorbable alginate sheet at the supraspinatus tendon-to-bone repair site for healing of the rotator cuff tear. Forty adult (12 weeks old) male Sprague- Dawley wild-type rats were used in this study. The animals were randomly separated into 2 groups: group 1, conventional supraspinatus repair with acute repair; or group 2, supraspinatus repair with absorbable alginate sheet. Biomechanical and histological analyses were performed at 6 and 12 weeks after index rotator cuff surgery. Compared with group 1, group 2 exhibited a significantly greater mean ultimate failure load (group 1, 23.70±3.87 N; group 2, 61.44±43.67 N; P=.023) and mean ultimate stress (group 1, 2.83±0.50 MPa; group 2, 7.36±2.87 MPa; P=.020). However, 6-week outcomes were not significantly different. On histological scoring, compared with group 1, group 2 exhibited a significantly greater mean 6-week score (group 1, 4.10±1.72 points; group 2, 7.80±1.47 points; P<.001) and mean 12-week score (group 1, 3.50±1.00 points; group 2, 5.25±2.62 points; P=.020). Mechanical augmentation with absorbable alginate may improve tendon healing after surgical repair of the rotator cuff. [Orthopedics. 2019; 42(1):e104-e110.].
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Lee JS, Kim J, Im SP, Kim SW, Jung JW, Lazarte JMS, Lee JH, Thompson KD, Jung TS. Dual functionality of lamprey VLRB C-terminus (LC) for multimerization and cell surface display. Mol Immunol 2018; 104:54-60. [PMID: 30408623 DOI: 10.1016/j.molimm.2018.10.020] [Citation(s) in RCA: 2] [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: 08/09/2018] [Revised: 10/25/2018] [Accepted: 10/28/2018] [Indexed: 10/27/2022]
Abstract
Lamprey, one of the living representatives of jawless vertebrates, uses variable lymphocyte receptors B (VLRB) for antigen recognition, rather than immunoglobulin (Ig) based receptors as used by higher vertebrates. The C-terminus of lamprey VLRB (LC) possess a glycosylphosphatidylinositol (GPI) signal sequence and seven cysteine residues providing dual functionality of the VLRB antibody in the form of a humoral agglutinin and cell membrane receptors. Here, we show that the LC can be either secreted or be membrane anchored as a heterologous fused protein in a multimeric form comprising of eight or ten monomeric units. Using serially truncated LC variants, we showed that the LC, in which the last three amino acid "RKR" were deleted, referred to as LC7, was the most suitable domain for multimeric construction, whereas, the intact LC is more tailored for applications involving membrane anchorage. We show that an antibody specific for viral hemorrhagic septicemia virus (VHSV) (VLR43), displayed on HEK-293F cells using a PiggyBac (PB) transposase system, exhibited a dose-dependent reaction with its antigen, verifying that the LC can be applied in antibody display technology. Therefore, the present report provides valuable insight into the structure of the lamprey VLRB and highlights its potential use as a novel fusion partner for multimerization and membrane anchorage of chimeric proteins.
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Affiliation(s)
- Jung Seok Lee
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University 900 Gajwadong, Jinju, Gyeongnam, 660-701, South Korea
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University 900 Gajwadong, Jinju, Gyeongnam, 660-701, South Korea
| | - Se Pyeong Im
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University 900 Gajwadong, Jinju, Gyeongnam, 660-701, South Korea
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University 900 Gajwadong, Jinju, Gyeongnam, 660-701, South Korea
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University 900 Gajwadong, Jinju, Gyeongnam, 660-701, South Korea
| | - Jassy Mary S Lazarte
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University 900 Gajwadong, Jinju, Gyeongnam, 660-701, South Korea
| | - Jeong Ho Lee
- Inland Aquaculture Research Center, NIFS, Changwon, 645-806, South Korea
| | - Kim D Thompson
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik, EH26 0PZ, UK
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University 900 Gajwadong, Jinju, Gyeongnam, 660-701, South Korea.
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Im SP, Kim J, Lee JS, Kim SW, Jung JW, Lazarte JMS, Kim JY, Kim YR, Lee JH, Chong RSM, Jung TS. Potential Use of Genetically Engineered Variable Lymphocyte Receptor B Specific to Avian Influenza Virus H9N2. J Immunol 2018; 201:3119-3128. [PMID: 30333123 DOI: 10.4049/jimmunol.1800981] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2018] [Accepted: 09/06/2018] [Indexed: 12/13/2022]
Abstract
The variable lymphocyte receptor (VLR) B of jawless vertebrates functions as a secreted Ab of jawed vertebrates and has emerged as an alternative Ab with a single polypeptide chain. After observing an upregulated VLRB response in hagfish immunized with avian influenza virus (AIV) subtype H9N2, we screened AIV H9N2-specific VLRB using a mammalian expression system. To improve the binding avidity of the Ag-specific VLRB to the Ag, we enabled multimerization of the VLRB by conjugating it with C-terminal domain of human C4b-binding protein. To dramatically enhance the expression and secretion of the Ag-specific VLRB, we introduced a glycine-serine linker and the murine Ig κ leader sequence. The practical use of the Ag-specific VLRB was also demonstrated through various immunoassays, detected by anti-VLRB Ab (11G5). Finally, we found that the Ag-specific VLRB decreased the infectivity of AIV H9N2. Together, our findings suggest that the generated Ag-specific VLRB could be used for various immunoapplications.
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Affiliation(s)
- Se Pyeong Im
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 660-701, South Korea
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 660-701, South Korea
| | - Jung Seok Lee
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 660-701, South Korea
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 660-701, South Korea
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 660-701, South Korea
| | - Jassy Mary S Lazarte
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 660-701, South Korea
| | - Jong Yong Kim
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 660-701, South Korea
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 660-701, South Korea
| | - Jeong Ho Lee
- Inland Aquaculture Research Center, National Institute of Fisheries Science, Jinhae-gu, Changwon, Gyeongnam 645-806, South Korea; and
| | - Roger S M Chong
- Veterinary Aquatic Animal Health, Veterinary Surgeons Board of Queensland, Brisbane, Queensland 4000, Australia
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Gyeongnam 660-701, South Korea;
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Lee JS, Kim J, Im SP, Kim SW, Jung JW, Lazarte JMS, Lee JH, Thompson KD, Jung TS. Expression and characterization of monomeric variable lymphocyte receptor B specific to the glycoprotein of viral hemorrhagic septicemia virus (VHSV). J Immunol Methods 2018; 462:48-53. [PMID: 30121197 DOI: 10.1016/j.jim.2018.08.006] [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] [Received: 07/03/2018] [Revised: 08/08/2018] [Accepted: 08/10/2018] [Indexed: 02/06/2023]
Abstract
Monomeric variable lymphocyte receptor B (VLRB) is one of the smallest binding scaffold (20-25 kDa) from jawless vertebrates, hagfish and lamprey. This relatively new class of binding scaffold has various advantages: i) it has a single peptide composition, amenable to molecular engineering for enhancing its stability and affinity; ii) it has a small size, contributing better tissue penetration and easier production using microorganism expression system. Monomeric arVLRB142, which can specifically bind to the glycoprotein of viral hemorrhagic septicemia virus (VHSV), was expressed in Pichia pastoris. High quantity recombinant monomeric arVLRB142 (rVLR142mono) was purified from 100 ml of culture with a resulting yield of 2.6 ±1.3 mg of target protein. Functional studies revealed that the purified rVLR142mono can specifically recognize low levels of the target antigen (recombinant glycoprotein) (i.e. as low as 0.1 nM), but also the native glycoprotein of VHSV. The expressed rVLR142mono exhibited high levels of stability and it retained it binding capacity over broad temperature (4 °C ~ 60 °C) and pH ranges (pH 1.5-12.5). We developed an effective expression system for mass production of monomeric VLRB based on P. pastoris. The recombinant protein that was obtained offers promising binding avidity and biophysical stability and its potential use in various biotechnological applications.
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Affiliation(s)
- Jung Seok Lee
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwadong, Jinju 660-701, South Korea
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwadong, Jinju 660-701, South Korea
| | - Se Pyeong Im
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwadong, Jinju 660-701, South Korea
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwadong, Jinju 660-701, South Korea
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwadong, Jinju 660-701, South Korea
| | - Jassy Mary S Lazarte
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwadong, Jinju 660-701, South Korea
| | - Jeong-Ho Lee
- NIFS, Inland Aquaculture Research Center, Changwon 645-806, South Korea
| | - Kim D Thompson
- Moredun Research Institute, Pentlands Science Park, Penicuik EH26 0PZ, UK
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwadong, Jinju 660-701, South Korea.
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Oh JH, Min S, Jung JW, Kim HJ, Kim JY, Chung SW, Kim JY, Yoon JP. Clinical and Radiological Results of Hook Plate Fixation in Acute Acromioclavicular Joint Dislocations and Distal Clavicle Fractures. Clin Shoulder Elb 2018; 21:95-100. [PMID: 33330159 PMCID: PMC7726378 DOI: 10.5397/cise.2018.21.2.95] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 03/16/2018] [Accepted: 03/18/2018] [Indexed: 11/25/2022] Open
Abstract
Background The purpose of this study was to evaluate the clinical outcomes and complications of hook plate fixation in acromioclavicular (AC) joint dislocations and distal clavicle fractures. Methods We retrospectively reviewed a series of 60 consecutive patients with hook plate fixation for AC joint dislocation (group I) and distal clavicle fracture (group II). Groups I and II had 39 and 21 patients, respectively. Clinical results were evaluated using the pain visual analogue scale (VAS), simple shoulder test, and Constant-Murley scores. In addition, subacromial erosion and stiffness were evaluated as complications. Results At the removal, the pain VAS was 2.69 ± 1.30 and 4.10 ± 2.14 in groups I and II, respectively, which were significantly different (p=0.003). The simple shoulder test score was 9.59 ± 1.60 and 7.81 ± 2.67 in groups I and II, respectively, which were also significantly different (p=0.002). Subacromial erosion was significantly more frequent in group II (14/21 patients, 66.7%) than in group I (15/39 patients, 38.5%) (p=0.037), and stiffness was also higher in group II (17/21 patients, 81.0%) than in group I (22/39 patients, 56.4%), but it was not significant. Conclusions Hook plate fixation showed good clinical and functional results for the treatment of acute unstable AC joint dislocation and distal clavicle fracture. But, in distal clavicle fractures, there are more subacromial erosion and stiffness compare with acute unstable AC joint dislocation.
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Affiliation(s)
- Joo Han Oh
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Seunggi Min
- Department of Orthopaedic Surgery, Kyungpook National University, School of Medicine, Daegu, Korea
| | - Jae Wook Jung
- Department of Orthopaedic Surgery, Kyungpook National University, School of Medicine, Daegu, Korea
| | - Hee-June Kim
- Department of Orthopaedic Surgery, Kyungpook National University, School of Medicine, Daegu, Korea
| | - Jae Yoon Kim
- Department of Orthopaedic Surgery, Chung-Ang University School of Medicine, Seoul, Korea
| | - Seok Won Chung
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, Seoul, Korea
| | - Joon Yub Kim
- Department of Orthopaedic Surgery, Myongji Hospital, Goyang, Korea
| | - Jong Pil Yoon
- Department of Orthopaedic Surgery, Kyungpook National University, School of Medicine, Daegu, Korea
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22
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Yoon JP, Lee CH, Jung JW, Lee HJ, Lee YS, Kim JY, Park GY, Choi JH, Chung SW. Sustained Delivery of Transforming Growth Factor β1 by Use of Absorbable Alginate Scaffold Enhances Rotator Cuff Healing in a Rabbit Model. Am J Sports Med 2018. [PMID: 29543511 DOI: 10.1177/0363546518757759] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND The failure rate for healing after rotator cuff repair is relatively high. PURPOSE To establish a system for sustained release of transforming growth factor β1 (TGF-β1) using an alginate scaffold and evaluate the effects of the sustained release of TGF-β1 on rotator cuff healing in a rabbit model. STUDY DESIGN Controlled laboratory study. METHODS Before the in vivo animal study, a standard MTS assay was performed to evaluate cell proliferation and metabolic activity on the alginate scaffold. Additionally, an enzyme-linked immunosorbent assay was performed to confirm the capacity of the sustained release of TGF-β1-containing alginate scaffold. Once the in vitro studies were completed, bilateral supraspinatus tendon repairs were performed in 48 rabbits that were allocated to 3 groups (n = 16 each) (group 1, supraspinatus repair only; group 2, supraspinatus repair with TGF-β1 single injection; group 3, supraspinatus repair with TGF-β1 sustained release via an alginate-based delivery system). Biomechanical and histological analyses were performed to evaluate the quality of tendon-to-bone healing at 12 weeks after rotator cuff repair. RESULTS The cell proliferation rate of the alginate scaffold was 122.30% compared with the control (fresh medium) group, which confirmed that the alginate sheet had no cytotoxicity and enhanced cell proliferation. Additionally, the level of TGF-β1 was found to increase with time on the alginate scaffold. Biomechanically, group 3 exhibited a significantly heightened ultimate failure load compared with groups 1 and 2 (group 1, 74.89 ± 29.82 N; group 2, 80.02 ± 34.42 N; group 3, 108.32 ± 32.48 N; P = .011) and more prevalent midsubstance tear compared with group 1 ( P = .028). However, no statistical differences were found in the cross-sectional area of the supraspinatus tendon (group 1, 32.74 ± 9.38; group 2, 33.76 ± 8.89; group 3, 34.80 ± 14.52; P = .882) and ultimate stress (group 1, 2.62 ± 1.13 MPa; group 2, 2.99 ± 1.81 MPa; group 3, 3.62 ± 2.24 MPa; P = .317). Histologically, group 3 exhibited a significantly heightened modified total Bonar score (group 1, 5.00 ± 1.54; group 2, 6.12 ± 1.85; group 3, 7.50 ± 1.31; P = .001). In addition, the tendon-to-bone interface for group 3 demonstrated better collagen orientation, continuity, and organization, and the area of new fibrocartilage formation was more evident in group 3. CONCLUSION At 12 weeks after rotator cuff repair, the authors found improved biomechanical and histological outcomes for sustained release of TGF-β1 using alginate scaffold in a rabbit model. CLINICAL RELEVANCE The alginate-bound growth factor delivery system might improve healing after rotator cuff repair in humans.
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Affiliation(s)
- Jong Pil Yoon
- Department of Orthopaedic Surgery, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
| | - Chang-Hwa Lee
- Department of Orthopaedic Surgery, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
| | - Jae Wook Jung
- Department of Orthopaedic Surgery, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
| | - Hyun-Joo Lee
- Department of Orthopaedic Surgery, Kyungpook National University, School of Medicine, Daegu, Republic of Korea
| | - Yong-Soo Lee
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - Ja-Yeon Kim
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - Ga Young Park
- Department of Bio-fibers and Materials Science, College of Agriculture and Life Science, Kyungpook National University, Daegu, Republic of Korea
| | - Jin Hyun Choi
- Department of Bio-fibers and Materials Science, College of Agriculture and Life Science, Kyungpook National University, Daegu, Republic of Korea
| | - Seok Won Chung
- Department of Orthopaedic Surgery, Konkuk University School of Medicine, Seoul, Republic of Korea
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Lee JS, Kim J, Im SP, Kim SW, Lazarte JMS, Jung JW, Gong TW, Kim YR, Lee JH, Kim HJ, Jung TS. Generation and characterization of hagfish variable lymphocyte receptor B against glycoprotein of viral hemorrhagic septicemia virus (VHSV). Mol Immunol 2018; 99:30-38. [PMID: 29679865 DOI: 10.1016/j.molimm.2018.04.006] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2018] [Revised: 04/03/2018] [Accepted: 04/11/2018] [Indexed: 12/27/2022]
Abstract
Variable lymphocyte receptors B (VLRBs) are non-immunoglobulin components of the humoral immune system in jawless vertebrates including hagfish (Eptatretus burgeri) and lamprey (Petromyzon marinus). Hagfish VLRBs consist of leucine rich repeat (LRR) modules with a superhydrophobic C-terminal tail, the latter of which leads to extremely low expression levels in recombinant protein technology. Here, we present an artificially oligomerized VLRB (arVLRB) that conjugates via the C4bp oligomerization domain derived from human C4b-binding protein (hC4bp) rather than the superhydrophobic tail. The resulting arVLRB had a tightly multimerized form with seven monomeric VLRB arms and showed high expression and secretion levels in a mammalian expression system. To isolate antigen-specific arVLRB, we constructed large VLRB libraries from hagfish immunized with the fish pathogen, viral hemorrhagic septicemia virus (VHSV). The selected arVLRBs were found to recognize various types of antigens, including the recombinant target protein, purified viruses, and progeny viruses, with high antigen binding abilities and specificities. We also performed in vitro affinity maturation of the arVLRBs through LRRCT mutagenesis, and found that this enhanced their antigen-binding properties by at least 125-fold. Our epitope mapping analysis revealed that 37DWDTPL42, which is located in a region conserved among the glycoproteins of all VHSV isolates, is the recognition epitope of the arVLRBs. Thus, our newly developed arVLRB could prove useful in the development of universal diagnostic tools and/or therapeutic agents for the virus. Together, our novel findings provide valuable insights into hagfish VLRB and its potential use as a novel alternative to conventional antibodies for biotechnological applications.
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Affiliation(s)
- Jung Seok Lee
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Se Pyeong Im
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Jassy Mary S Lazarte
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Tae Won Gong
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 660-701, South Korea
| | - Jeong Ho Lee
- Inland Aquaculture Research Center, NIFS, Changwon, 645-806, South Korea
| | - Hyoung Jun Kim
- Laboratory of Aquatic Animal Quarantine, General Service Division, National Fishery Products Quality Management Service, Busan 49111, South Korea
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, 660-701, South Korea.
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Yoon JP, Jung JW, Lee CH, Kim YG, Chung SW, Kim JY, Lee HJ, Yoon JW, Lee H. Fatty Degeneration of the Rotator Cuff Reflects Shoulder Strength Deficits in Patients With Rotator Cuff Tears. Orthopedics 2018; 41:e15-e21. [PMID: 29136253 DOI: 10.3928/01477447-20171106-02] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 09/19/2017] [Indexed: 02/03/2023]
Abstract
Fatty degeneration is an important clinical factor in patients with rotator cuff tears. Goutallier grade, occupation ratio, and tangent sign help identify fatty degeneration; however, little is known about how closely these measurement techniques correlate with actual muscle strength deficits. The authors evaluated each method's ability to determine the correlation between fatty degeneration and muscle strength deficits. The authors included 203 patients who underwent full-thickness rotator cuff repair (mean age, 61.29±7.92 years). All patients were evaluated with preoperative magnetic resonance imaging to identify fatty degeneration and with an isokinetic test to determine actual shoulder strength. Fatty degeneration was evaluated using Goutallier grade, occupation ratio, and tangent sign. The actual shoulder strength deficit was evaluated by abduction, whereas external and internal rotation were tested using the isokinetic test. More severe fatty degeneration was correlated with lower degrees of abduction, external rotation, and internal rotation. The occupation ratio was more closely correlated with actual muscle strength deficits. However, in patients with massive tears, the correlation between fatty degeneration and muscle strength was less pronounced. Tangent sign (+) findings had a significantly lower strength of external rotation and abduction. The fatty degeneration of the rotator cuff muscle measured by each method was correlated with actual shoulder strength deficits in patients with rotator cuff tears. However, the correlations were less clear in patients with massive rotator cuff tears. Therefore, in cases of massive rotator cuff tears, fatty degeneration was correlated with muscle strength deficits but was not directly proportional to their extent. [Orthopedics. 2018; 41(1):e15-e21.].
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Jung JW, Lee JS, Kim YR, Im SP, Kim SW, Lazarte JMS, Kim J, Thompson KD, Suh JP, Jung TS. Development of a monoclonal antibody against the CD3ε of olive flounder (Paralichthys olivaceus) and its application in evaluating immune response related to CD3ε. Fish Shellfish Immunol 2017; 65:179-185. [PMID: 28433716 DOI: 10.1016/j.fsi.2017.04.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 04/12/2017] [Accepted: 04/18/2017] [Indexed: 06/07/2023]
Abstract
The T cell receptor (TCR) is the binding site of antigen and is responsible for specifically activating the adaptive immune response. CD3, an essential component of the CD3-TCR complex, is known to be composed of γδ and ε chains in teleost. However, there are few monoclonal antibodies (mAb) available to identify these molecules on T cells, so we aimed to produce a mAb against CD3ε to improve our understanding of T cell immune response in olive flounder (Paralichthys olivaceus). CD3ε recombinant protein was expressed in yeast, the expression of which was confirmed by SDS-PAGE, MALDI-TOF/TOF MS and Western blot analysis. A CD3ε-specific mAb 4B2 was selected, the specificity of which was examined by confocal microscopy, flow cytometry and RT-PCR, and the mAb was subsequently used to examine the CD3ε lymphocyte population in several different immune organs, with relatively high percentages of these cells seen in trunk-kidney and spleen, while lower percentages were seen in the liver and peripheral blood of olive flounder. During a viral hemorrhagic septicemia virus (VHSV) infection in olive flounder, the number of CD3ε lymphocytes was seen to gradually increase in the liver, spleen and trunk-kidney of infected fish until 7 days post infection (dpi). In peripheral blood, on the other hand, the increase in CD3ε lymphocyte numbers peaked by 3 dpi. These results suggest that CD3ε lymphocytes might be involved in the immune response against VHSV.
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Affiliation(s)
- Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwa-dong, Jinju, Gyeongnam, 660-701, South Korea
| | - Jung Seok Lee
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwa-dong, Jinju, Gyeongnam, 660-701, South Korea
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwa-dong, Jinju, Gyeongnam, 660-701, South Korea
| | - Se Pyeong Im
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwa-dong, Jinju, Gyeongnam, 660-701, South Korea
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwa-dong, Jinju, Gyeongnam, 660-701, South Korea
| | - Jassy Mary S Lazarte
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwa-dong, Jinju, Gyeongnam, 660-701, South Korea
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwa-dong, Jinju, Gyeongnam, 660-701, South Korea
| | - Kim D Thompson
- Moredun Research Institute, Pentlands Science Park, Bush Loan, Penicuik EH26 0PZ, UK
| | - Jong Pyo Suh
- Haeyon Fish Farm Research Center, Jeju, 695-976, South Korea
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, 900 Gajwa-dong, Jinju, Gyeongnam, 660-701, South Korea.
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Lazarte JMS, Kim YR, Lee JS, Im SP, Kim SW, Jung JW, Kim J, Lee JH, Jung TS. Immunostimulatory effect of DDX41 of olive flounder (Paralichthys olivaceus). FOOD AGR IMMUNOL 2017. [DOI: 10.1080/09540105.2017.1318836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Jassy Mary S. Lazarte
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Jung Seok Lee
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Se Pyeong Im
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Jeong-Ho Lee
- Inland Aquaculture Research Center, NIFS, Changwon, Korea
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
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Lazarte JMS, Kim YR, Lee JS, Im SP, Kim SW, Jung JW, Kim J, Lee WJ, Jung TS. Enhancement of glycoprotein-based DNA vaccine for viral hemorrhagic septicemia virus (VHSV) via addition of the molecular adjuvant, DDX41. Fish Shellfish Immunol 2017; 62:356-365. [PMID: 28126619 DOI: 10.1016/j.fsi.2017.01.031] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 01/19/2017] [Accepted: 01/20/2017] [Indexed: 06/06/2023]
Abstract
The use of molecular adjuvants to improve the immunogenicity of DNA vaccines has been thoroughly studied in recent years. Glycoprotein (G)-based DNA vaccines had been proven to be effective in combating infection against Rhabdovirus (especially infectious hematopoietic necrosis virus, IHNV) in salmonids. DDX41 is a helicase known to induce antiviral and inflammatory responses by inducing a type I IFN innate immune response. To gain more information regarding G-based DNA vaccines in olive flounder (Paralicthys olivaceus), we tried to develop a more efficient G-based DNA vaccine by adding a molecular adjuvant, DDX41. We designed a DNA vaccine in which the VHSV glycoprotein (G-protein) and DDX41 were driven by the EF-1α and CMV promoters, respectively. Olive flounders were intramuscularly immunized with 1 μg of plasmids encoding the G-based DNA vaccine alone (pEF-G), the molecular adjuvant alone (pEF-D), or the vaccine-adjuvant construct (pEF-GD). At two different time points, 15 and 30 days later, the fish were intraperitoneally infected with VHSV (100 μL; 1 × 106 TCID50/mL). Our assays revealed that the plasmid constructs showed up-regulated expression of IFN-1 and its associated genes at day 3 post-vaccination in both kidney and spleen samples. Specifically, pEF-GD showed statistically higher expression of immune response genes than pEF-G and pEF-D treated group (p < 0.05/p < 0.001). After VHSV challenge, the fish group treated with pEF-GD showed higher survival rate than the pEF-G treated group, though difference was not statistically significant in the 15 dpv challenged group however in the 30 dpv challenged group, the difference was statistically significant (p < 0.05). Together, these results clearly demonstrate that DDX41 is an effective adjuvant for the G-based DNA vaccine in olive flounder. Our novel findings could facilitate the development of more effective DNA vaccines for the aquaculture industry.
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Affiliation(s)
- Jassy Mary S Lazarte
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Young Rim Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Jung Seok Lee
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Se Pyeong Im
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Si Won Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | - Jaesung Kim
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea
| | | | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, College of Veterinary Medicine, Gyeongsang National University, Jinju, South Korea.
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Kim SW, Nho SW, Im SP, Lee JS, Jung JW, Lazarte JMS, Kim J, Lee WJ, Lee JH, Jung TS. Rapid MALDI biotyper-based identification and cluster analysis of Streptococcus iniae. J Microbiol 2017; 55:260-266. [DOI: 10.1007/s12275-017-6472-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 12/02/2016] [Accepted: 12/15/2016] [Indexed: 02/04/2023]
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Kim YK, Lee JS, Jung JW, Hikima JI, Ohtani M, Jang HB, Nho SW, Cha IS, Park SB, Lee JH, Aoki T, Jung TS. Characterization of a specific monoclonal antibody against immunoglobulin light kappa/L1 chain in olive flounder (Paralichthys olivaceus). Fish Shellfish Immunol 2017; 60:88-96. [PMID: 27840171 DOI: 10.1016/j.fsi.2016.11.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 11/04/2016] [Accepted: 11/07/2016] [Indexed: 06/06/2023]
Abstract
Immunoglobulins (Ig) are heterodimeric proteins that play critical roles in the adaptive immune system of vertebrates. Because of their plasticity, teleostean Igs are more diverse, and thus do not conform to mammalian classifications. Because of this, mammalian-based Ig cell markers cannot be used successfully to study immune responses in fish. There is therefore a need to produce Ig-specific cell markers for fish. Here, we attempted to identify the specific isotype detected by an Ig light chain-specific monoclonal antibody (anti-olive flounder IgL-mAb: M7C3-4) that we had previously produced [11]. Three newly identified sequences of the Ig light chain from olive flounder were classified according to their isotypes. Subsequent analyses revealed that M7C3-4 was able to specifically detect lymphocytes expressing one of the κ chains (Igκ-a) in olive flounder. Interestingly, Igκ-a+ B cells were more abundant in spleen and trunk-kidney than in peripheral blood, indicating a distribution different from that of IgM+ B cells. Our work reveals interesting aspects of B cell distribution and differentiation, and may aid in the production of suitable and effective cell markers for olive flounder.
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Affiliation(s)
- Young Kyu Kim
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Jung Seok Lee
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Jae Wook Jung
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Jun-Ichi Hikima
- Department of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai-nishi, Miyazaki 889-2192, Japan
| | - Maki Ohtani
- Department of Veterinary Diseases Biology, Faculty of Health and Medical Science, University of Copenhagen, Copenhagen 13626, Denmark
| | - Ho Bin Jang
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Seong Won Nho
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - In Seok Cha
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Seong Bin Park
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, South Korea
| | - Jeong Ho Lee
- Inland Aquaculture Research Center, National Institute of Fisheries Science (NIFS), Changwon 51688, South Korea
| | - Takashi Aoki
- Consolidated Research Institute for Advanced Science and Medical Care, Waseda University, 513, Wasedatsurumaki-cho, Shinjuku-ku, Tokyo 162-0041, Japan
| | - Tae Sung Jung
- Laboratory of Aquatic Animal Diseases, Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 660-701, South Korea.
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Lee YS, Lee JW, Lee J, Min NE, Park JE, Jung JW, Park DI, Kim KD, Ahn HJ, Choi JW, Park YH, Ryu S, Jeong WJ, Moon JY. The usefulness of modified national early warning score with the age level in critically ill medical patients. Intensive Care Med Exp 2015. [PMCID: PMC4797895 DOI: 10.1186/2197-425x-3-s1-a834] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Lee OK, Cha HJ, Lee MJ, Lim KM, Jung JW, Ahn KJ, An IS, An S, Bae S. Implication of microRNA regulation in para-phenylenediamine-induced cell death and senescence in normal human hair dermal papilla cells. Mol Med Rep 2015; 12:921-36. [PMID: 25776079 PMCID: PMC4438936 DOI: 10.3892/mmr.2015.3487] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Accepted: 02/26/2015] [Indexed: 02/02/2023] Open
Abstract
Para-phenylenediamine (PPD) is a major component of hair coloring and black henna products. Although it has been largely demonstrated that PPD induces allergic reactions and increases the risk of tumors in the kidney, liver, thyroid gland and urinary bladder, the effect on dermal papilla cells remains to be elucidated. Therefore, the current study evaluated the effects of PPD on growth, cell death and senescence using cell-based assays and microRNA (miRNA) microarray in normal human hair dermal papilla cells (nHHDPCs). Cell viability and cell cycle analyses demonstrated that PPD exhibited a significant cytotoxic effect on nHHDPCs through inducing cell death and G2 phase cell cycle arrest in a dose-dependent manner. It was additionally observed that treatment of nHHDPCs with PPD induced cellular senescence by promoting cellular oxidative stress. In addition, the results of the current study indicated that these PPD-mediated effects were involved in the alteration of miRNA expression profiles. Treatment of nHHDPCs with PPD altered the expression levels of 74 miRNAs by ≥2-fold (16 upregulated and 58 downregulated miRNAs). Further bioinformatics analysis determined that these identified miRNA target genes were likely to be involved in cell growth, cell cycle arrest, cell death, senescence and the induction of oxidative stress. In conclusion, the observations of the current study suggested that PPD was able to induce several cytotoxic effects through alteration of miRNA expression levels in nHHDPCs.
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Affiliation(s)
- Ok-Kyu Lee
- Korea Institute for Skin and Clinical Sciences and Molecular‑Targeted Drug Research Center, Konkuk University, Seoul 143‑701, Republic of Korea
| | - Hwa Jun Cha
- Korea Institute for Skin and Clinical Sciences and Molecular‑Targeted Drug Research Center, Konkuk University, Seoul 143‑701, Republic of Korea
| | - Myung Joo Lee
- Korea Institute for Skin and Clinical Sciences and Molecular‑Targeted Drug Research Center, Konkuk University, Seoul 143‑701, Republic of Korea
| | - Kyung Mi Lim
- Korea Institute for Skin and Clinical Sciences and Molecular‑Targeted Drug Research Center, Konkuk University, Seoul 143‑701, Republic of Korea
| | - Jae Wook Jung
- Department of Dermatology, Konkuk University School of Medicine, Seoul 143‑729, Republic of Korea
| | - Kyu Joong Ahn
- Department of Dermatology, Konkuk University School of Medicine, Seoul 143‑729, Republic of Korea
| | - In-Sook An
- Korea Institute for Skin and Clinical Sciences and Molecular‑Targeted Drug Research Center, Konkuk University, Seoul 143‑701, Republic of Korea
| | - Sungkwan An
- Korea Institute for Skin and Clinical Sciences and Molecular‑Targeted Drug Research Center, Konkuk University, Seoul 143‑701, Republic of Korea
| | - Seunghee Bae
- Korea Institute for Skin and Clinical Sciences and Molecular‑Targeted Drug Research Center, Konkuk University, Seoul 143‑701, Republic of Korea
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Lee KH, Lee SE, Jung JW, Jeon SY. Spinal cord stimulation for intractable visceral pain due to sphincter of oddi dysfunction. Korean J Pain 2015; 28:57-60. [PMID: 25589948 PMCID: PMC4293509 DOI: 10.3344/kjp.2015.28.1.57] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Revised: 12/10/2014] [Accepted: 12/11/2014] [Indexed: 12/29/2022] Open
Abstract
Sphincter of Oddi dysfunction (SOD) is a syndrome of chronic biliary pain or recurrent pancreatitis due to the functional obstruction of the pancreaticobiliary flow. We report a case of spinal cord stimulation (SCS) for chronic abdominal pain due to SOD. The patient had a history of cholecystectomy and had suffered from chronic right upper quadrant abdominal pain. The patient had been diagnosed as having SOD. The patient was treated with opioid analgesics and nerve blocks, including a splanchnic nerve block. However, two years later, the pain became intractable. We implanted percutaneous SCS at the T5-7 level for this patient. Visual analog scale (VAS) scores for pain and the amount of opioid intake decreased. The patient was tracked for more than six months without significant complications. From our clinical case, SCS is an effective and alternative treatment option for SOD. Further studies and long-term follow-up are necessary to understand the effectiveness and the limitations of SCS on SOD.
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Affiliation(s)
- Kang Hun Lee
- Department of Anesthesiology and Pain Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Sang Eun Lee
- Department of Anesthesiology and Pain Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Jae Wook Jung
- Department of Anesthesiology and Pain Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Sang Yoon Jeon
- Department of Anesthesiology and Pain Medicine, Inje University Haeundae Paik Hospital, Busan, Korea
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Hwang YJ, Jung HJ, Kim MJ, Roh NK, Jung JW, Lee YW, Choe YB, Ahn KJ. Serum levels of LL-37 and inflammatory cytokines in plaque and guttate psoriasis. Mediators Inflamm 2014; 2014:268257. [PMID: 25197165 PMCID: PMC4150496 DOI: 10.1155/2014/268257] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [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: 05/26/2014] [Revised: 07/21/2014] [Accepted: 07/30/2014] [Indexed: 02/08/2023] Open
Abstract
Psoriasis is a chronic inflammatory skin disease. It is assumed that the plaque phenotype of psoriasis is associated with T helper (Th) 1 immune response activation, while the guttate phenotype is associated with the Th17 immune response. Previous investigations of differences in the serum levels of cytokines relative to the clinical psoriatic phenotype have yielded conflicting results. This study compared the levels of circulating inflammatory cytokines and LL-37 relative to the morphological phenotype in patients with psoriasis. Seventy-four age-matched patients with psoriasis (32 with guttate psoriasis and 42 with plaque psoriasis) and 12 healthy controls were included. A multiplex cytokine assay and enzyme-linked immunosorbent assay were used to measure levels of Th1- and Th17-derived cytokines and LL-37, respectively. Circulating levels of interferon- (IFN)-γ, interleukin- (IL)-1RA, IL-2, and IL-23, and LL-37 were significantly higher in patients with psoriasis than in healthy controls. However, the serum levels of inflammatory cytokines (IL-7, IL-22, and IL-23) and LL-37 did not differ significantly between the guttate and plaque phenotypes of psoriasis. There was a positive correlation between serum inflammatory cytokine levels and the Psoriasis Area and Severity Index score. The findings of this study suggest that the serum levels of inflammatory cytokines reflect the disease activity rather than determine the morphological phenotype.
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Affiliation(s)
- Young Ji Hwang
- Department of Dermatology, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 143-729, Republic of Korea
| | - Ho Jung Jung
- Department of Dermatology, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 143-729, Republic of Korea
| | - Min Jung Kim
- Department of Dermatology, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 143-729, Republic of Korea
| | - Nam Kyung Roh
- Department of Dermatology, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 143-729, Republic of Korea
| | - Jae Wook Jung
- Department of Dermatology, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 143-729, Republic of Korea
| | - Yang Won Lee
- Department of Dermatology, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 143-729, Republic of Korea
| | - Yong Beom Choe
- Department of Dermatology, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 143-729, Republic of Korea
| | - Kyu Joong Ahn
- Department of Dermatology, Konkuk University School of Medicine, 120-1 Neungdong-ro, Gwangjin-gu, Seoul 143-729, Republic of Korea
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Jung HJ, Kim SY, Jung JW, Park HJ, Lee YW, Choe YB, Ahn KJ. Identification of dermatophytes by polymerase chain reaction-restriction fragment length polymorphism analysis of metalloproteinase-1. Ann Dermatol 2014; 26:338-42. [PMID: 24966633 PMCID: PMC4069644 DOI: 10.5021/ad.2014.26.3.338] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2012] [Revised: 06/13/2013] [Accepted: 07/09/2013] [Indexed: 11/16/2022] Open
Abstract
Background Transgenic research on metalloproteinase-1 is an emerging field in the area of plant molecular biology. The new method reported here can similarly be applied in fungal molecular biology to identify different dermatophytes. Our method is more accurate than traditional methods such as molecular analyses. Objective To identify Trichophyton rubrum, T. mentagrophytes var. mentagrophytes, T. tonsurans, T. mentagrophytes var. interdigitale, Microsporum canis and M. gypseum, by using the restriction fragment length polymorphism (RFLP) analysis and polymerase chain reaction (PCR) to detect polymorphisms in the metalloproteinase-1 gene (MEP1). Methods From each fungal strain, we isolated genomic DNA and performed PCR to amplify the region coding for metalloproteinase-1. Primers for the metalloproteinase-1 gene were designed based on the sequence in NCBI GenBank. Subsequently, we purified the amplified PCR product and performed RFLP analysis. After restriction enzyme digestion, BsrDI (NEB, England), the samples were subjected to electrophoresis. Four different patterns of DNA fragments were observed among 6 fungal species. Results The DNA fragments for T. mentagrophytes var. mentagrophytes, T. mentagrophytes var. interdigitale and T. tonsurans showed similar patterns on electrophoresis and were not distinguishable, whereas T. rubrum, M. canis, and M. gypseum showed different patterns. Conclusion To our knowledge, it is the first study to introduce the analysis of the nucleotide sequence of metalloproteinase-1 enzyme to study differentiation in dermatophytes. Based on our results, more accurate differentiation and subtyping of T. rubrum and T. mentagrophytes var. interdigitale might be possible. This might contribute to better understanding of the epidemiology and pathogenesis of dermatophyte.
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Affiliation(s)
- Ho Jung Jung
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea
| | - Soo Young Kim
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea
| | - Jae Wook Jung
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea
| | - Hyun Jung Park
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea
| | - Yang Won Lee
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea. ; Research Institute of Medical Science, Konkuk University, Seoul, Korea
| | - Yong Beom Choe
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea. ; Research Institute of Medical Science, Konkuk University, Seoul, Korea
| | - Kyu Joong Ahn
- Department of Dermatology, Konkuk University School of Medicine, Seoul, Korea. ; Research Institute of Medical Science, Konkuk University, Seoul, Korea
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Jung JW, Cheol Go G, Jeon SY, Bang S, Lee KH, Kim YH, Kim DK. Dexmedetomidine sedation for transesophageal echocardiography during percutaneous atrial septal defect closure in adult. Pak J Med Sci 2014; 29:1456-8. [PMID: 24550975 PMCID: PMC3905376 DOI: 10.12669/pjms.296.3616] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 09/03/2013] [Accepted: 09/05/2013] [Indexed: 11/16/2022] Open
Abstract
Atrial septal defect (ASD) is second common congenital heart disease that often leads to adult period. Intracardiac or transesophageal echocardiography (TEE) is essential for percutaneous closure of ASD using Amplatzer septal occluder. Dexmedetomidine (DEX), which is a highly selective α2-agonist, has sedative and analgesic properties without respiratory depression in the clinical dose range. We report percutaneous closure of ASD with TEE under DEX sedation.
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Affiliation(s)
- Jae Wook Jung
- Jae Wook Jung, MD, Department of Anesthesiology and Pain Medicine, Haeundae Paik Hospital, Inje University, Busan, South Korea
| | - Gwang Cheol Go
- Gwang Cheol Go, MD, Department of Anesthesiology and Pain Medicine, Haeundae Paik Hospital, Inje University, Busan, South Korea
| | - Sang Yoon Jeon
- Sang Yoon Jeon, MD, Department of Anesthesiology and Pain Medicine, Haeundae Paik Hospital, Inje University, Busan, South Korea
| | - Sira Bang
- Sira Bang, MD, PhD, Department of Anesthesiology and Pain Medicine, Haeundae Paik Hospital, Inje University, Busan, South Korea
| | - Ki Hwa Lee
- Ki Hwa Lee, MD, Department of Anesthesiology and Pain Medicine, Haeundae Paik Hospital, Inje University, Busan, South Korea
| | - Yong Han Kim
- Yong Han Kim, MD, Department of Anesthesiology and Pain Medicine, Haeundae Paik Hospital, Inje University, Busan, South Korea
| | - Dong-Kie Kim
- Dong-Kie Kim, MD, Department of Cardiology, Haeundae Paik Hospital, Inje University, Busan, South Korea
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Lee KH, Kang ES, Jung JW, Park JH, Choi YG. Use of the i-gel™ supraglottic airway device in a patient with subglottic stenosis -a case report-. Korean J Anesthesiol 2013; 65:254-6. [PMID: 24101961 PMCID: PMC3790038 DOI: 10.4097/kjae.2013.65.3.254] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2012] [Revised: 10/29/2012] [Accepted: 10/31/2012] [Indexed: 11/10/2022] Open
Abstract
The airway management of patients with subglottic stenosis poses many challenges for the anesthesiologists. Many anesthesiologists use a narrow endotracheal tube for airway control. This, however, can lead to complications such as tracheal mucosal trauma, tracheal perforation or bleeding. The ASA difficult airway algorithm recommends the use of supraglottic airway devices in a failed intubation/ventilation scenario. In this report, we present a case of failed intubation in a patient with subglottic stenosis successfully managed during an i-gel™ supraglottic airway device. The device provided a good seal, and allowed for controlled mechanical ventilation with acceptable peak pressures while the patient was in the beach-chair position.
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Affiliation(s)
- Ki Hwa Lee
- Department of Anesthesiology and Pain Medicine, Haeundae Paik Hospital, Inje University, Busan, Korea
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Jung JW, Lee YW, Choe YB, Ahn KJ. An 8-week face-split study to evaluate the efficacy of cosmeceuticals using non-invasive bioengineering devices. Skin Res Technol 2013; 19:324-9. [PMID: 23480308 DOI: 10.1111/srt.12050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 01/06/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND/AIMS Even with the increasing demand for functional cosmeceuticals in the recent years, objective standard criteria for assessing their efficacy are currently incomplete at best. In this 8-week face-split study, in which we topically applied high-priced cosmeceuticals on one side and more affordable cosmeceuticals on the other side of the face, we compared the efficacy of these two products using non-invasive bioengineering technology. METHODS We assessed the efficacy of a skin-whitening and an anti-wrinkle cosmeceutical product on 25 and 19 healthy female volunteers, respectively. In a single blind split setting, each participant received an 8-week topical application of high-priced cosmeceuticals to the left side of the face, and cheaper cosmeceuticals to the right side. Then, the subjects' biophysical parameters were measured for an objective evaluation of the results. This was followed by a questionnaire to obtain a subjective assessment. RESULTS There was no significant difference in the change between the high-priced cosmeceuticals and the more affordable cosmeceuticals. At each measured site, there were variable changes including skin improvement and aggravation at the end of study. The subjective questionnaire demonstrated also that the participants perceived no difference in the efficacy between the two products. CONCLUSIONS Our results showed that there were no significant differences in the skin biophysical parameters following the application with high-priced functional cosmeceuticals or less expensive cosmeceuticals. The subject failed to differentiate between the two products. The development of objective standard criteria for assessing its efficacy is essential.
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Affiliation(s)
- J W Jung
- Department of Dermatology, Konkuk University School of Medicine, Seoul 143-729, Korea
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Jung JW, Lee JS, Kwon N, Park SJ, Chang S, Kim J, Pyo J, Kohmura Y, Nishino Y, Yamamoto M, Ishikawa T, Je JH. Fast microtomography using bright monochromatic x-rays. Rev Sci Instrum 2012; 83:093704. [PMID: 23020380 DOI: 10.1063/1.4751853] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A fast microtomography system for high-resolution high-speed imaging has been developed using bright monochromatic x-rays at the BL29XU beamline of SPring-8. The shortest scan time for microtomography we attained was 0.25 s in 1.25 μm effective pixel size by combining the bright monochromatic x-rays, a fast rotating sample stage, and a high performance x-ray imaging detector. The feasibility of the tomography system was successfully demonstrated by visualization of rising bubbles in a viscous liquid, an interesting issue in multiphase flow physics. This system also provides a high spatial (a measurable feature size of 300 nm) or a very high temporal (9.8 μs) resolution in radiographs.
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Affiliation(s)
- J W Jung
- X-ray Imaging Center, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784, South Korea
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Kim SH, Lee SE, Hong MK, Song NH, Yoon B, Viet P, Ahn YJ, Lee BM, Jung JW, Kim KP, Han YS, Kim JG, Kang LW. Homologous expression and quantitative analysis of T3SS-dependent secretion of TAP-tagged XoAvrBs2 in Xanthomonas oryzae pv. oryzae induced by rice leaf extract. J Microbiol Biotechnol 2011; 21:679-85. [PMID: 21791953 DOI: 10.4014/jmb.1102.02011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Xanthomonas oryzae pv. oryzae (Xoo) produces a putative effector, XoAvrBs2. We expressed XoAvrBs2 homologously in Xoo with a TAP-tag at the C-terminus to enable quantitative analysis of protein expression and secretion. Addition of rice leaf extracts from both Xoo-sensitive and Xoo-resistant rice cultivars to the Xoo cells induced expression of the XoAvrBs2 gene at the transcriptional and translational levels, and also stimulated a remarkable amount of XoAvrBs2 secretion into the medium. In a T3SS-defective Xoo mutant strain, secretion of the TAPtagged XoAvrBs2 was blocked. Thus, we elucidated the transcriptional and translational expressions of the XoAvrBs2 gene in Xoo was induced in vitro by the interaction with rice and the induced secretion of XoAvrBs2 was T3SSdependent. It is the first report to measure the homologous expression and secretion of XoAvrBs2 in vitro by rice leaf extract. Our system for the quantitative analysis of effector protein expression and secretion could be generally used for the study of host-pathogen interactions.
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Affiliation(s)
- S H Kim
- Department of Advanced Technology Fusion, Konkuk University, Hwayang dong, Gwangjin-gu, Seoul 143-701, Korea
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Kwon SY, Jung JW, Kim BS, Kim TH, Yoo ES, Kwon TG. Laparoscopic versus Open Radical Nephrectomy in T2 Renal Cell Carcinoma: Long-Term Oncologic Outcomes. Korean J Urol 2011; 52:474-8. [PMID: 21860768 PMCID: PMC3151635 DOI: 10.4111/kju.2011.52.7.474] [Citation(s) in RCA: 6] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2011] [Accepted: 05/31/2011] [Indexed: 12/02/2022] Open
Abstract
Purpose Laparoscopic radical nephrectomy (LRN) has become the standard technique for radical nephrectomies for T1 renal tumors (7 cm or less). We extended our experience with LRN to T2 renal tumors (greater than 7 cm) and compared the efficacy and long-term oncologic outcomes with those of open radical nephrectomy (ORN) for T2 clear renal cell carcinoma (RCC) in the same period. Materials and Methods We retrospectively analyzed the data from 33 patients who underwent LRN and 35 patients who underwent ORN in our institution from January 2003 to June 2006 for T2N0M0 RCC. We compared long-term oncologic outcomes between the two groups. Results The median follow-up periods were 60.0 months (range, 48.0-77.0 months) and 65.6 months (range, 56.0-77.0 months) in the LRN and ORN groups, respectively. There were no statistically significant differences between the two groups in the patients' demographic data. There were no significant differences in the 5-year overall survival rate, the cancer-specific survival rate, or the recurrence-free survival rate. Conclusions Our results suggest that LRN for the management of T2 RCC is feasible and efficacious and that the long-term oncologic outcomes of LRN are comparable to those of ORN.
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Affiliation(s)
- Se Yun Kwon
- Department of Urology, School of Medicine, Kyungpook National University, Daegu, Korea
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Jung JW, Sung NJ, Park KH, Kim SW, Lee JH. Patients' Assessment of Community Primary and Non-primary Care Physicians in Seoul City of South Korea. Korean J Fam Med 2011; 32:226-33. [PMID: 22745858 PMCID: PMC3383130 DOI: 10.4082/kjfm.2011.32.4.226] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [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: 03/15/2011] [Accepted: 05/06/2011] [Indexed: 12/04/2022] Open
Abstract
Background It is important to know the current level of primary care performance in order to evaluate and plan for desirable health policy. We tried to compare patient's assessment of primary (family physician, general practitioner, internist, pediatrician, and general surgeon) and non-primary (the other specialties) care physicians. Methods Study subjects were physicians of primary care clinics in Seoul. The study subject evaluators were Seoul citizens who were selected by a list-assisted random digit dialing sampling method and who had visited their primary care clinic on six or more occasions over a period of more than 6 months as a usual source of care. The modified version of the Korean Primary Care Assessment Tool was used for the evaluation of primary care performance. The data were collected with the aid of a computer-assisted telephone interview system from June 29 to July 22, 2009. Results The data on 260 individuals were used for analysis. The mean scores of primary and non-primary care physician group were respectively 1.19 and 0.85 in the comprehensiveness domain, 1.00 and 0.83 in the coordination domain, 1.54 and 1.31 in the family/community orientation, and 1.24 and 0.99 as an average of 3 domains above. The scores in the comprehensiveness domain and the average of 3 domains were significantly higher in the primary than in the nonprimary care physician group. Conclusion Primary care physicians showed superior performance compared to non-primary care physicians in comprehensiveness domain and in the average of comprehensiveness, coordination, and family/community orientation domains.
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Affiliation(s)
- Jae Wook Jung
- Department of Family Medicine, Dongguk University Graduate School, Seoul, Korea
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Abstract
We described here a patient who had two lung masses. Although the two masses had the same histology and a similar good response to initial chemotherapy with gemcitabine and carboplatin, the response to pemetrexed as a second-line treatment was different after re-growth of the tumors. These two lung masses could have originated from different clones or they could have progressed through different paths of molecular pathogenesis after metastasis, which would lead to different tumor characteristics, including their chemosensitivity. Regardless of their pathogenetic mechanisms, it seems important to recognize that tumors with the same histology that develop in one patient can have different responses to drugs.
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Affiliation(s)
- Kwang Young Park
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Jae Wook Jung
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Seung Bum Nam
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Ho Jin Lee
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Hyo Seok Kim
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Yoon Hee Choi
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Jae Cheol Lee
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
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Affiliation(s)
- Jae Wook Jung
- Department of Ophthalmology, Dongsan Medical Center, Keimyung University College of Medicine, Daegu, Korea
| | - Hyun Chul Jin
- Department of Ophthalmology, Dongsan Medical Center, Keimyung University College of Medicine, Daegu, Korea
| | - Kwang Soo Kim
- Department of Ophthalmology, Dongsan Medical Center, Keimyung University College of Medicine, Daegu, Korea
| | - Yu Cheol Kim
- Department of Ophthalmology, Dongsan Medical Center, Keimyung University College of Medicine, Daegu, Korea
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Lee JH, Kim DW, Jang H, Choi JK, Geng J, Jung JW, Yoon SC, Jung HT. Enhanced solar-cell efficiency in bulk-heterojunction polymer systems obtained by nanoimprinting with commercially available AAO membrane filters. Small 2009; 5:2139-2143. [PMID: 19548281 DOI: 10.1002/smll.200900666] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- Jae Hyun Lee
- National Research Laboratory for Organic Opto-Electronic Materials, Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology, 335 Gwahangno, Yuseong-gu, Daejeon, 305-701, Korea
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Cho KH, Oh JK, Jang YS, Jung JW, Oh HR, Park EK, Kim DH, Moon SK, Kim DH, Ryu JH. Combination drug therapy using edaravone and Daio-Orengedoku-to after transient focal ischemia in rats. Methods Find Exp Clin Pharmacol 2008; 30:443-50. [PMID: 18850045 DOI: 10.1358/mf.2008.30.6.1241077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
In this study, we investigated the effect of Daio-Orengedoku-to (DOT) on ischemic brain damage in a rat model of focal ischemia-reperfusion and attempted to identify synergistic effects for the combination of edaravone and DOT against ischemic insult. Ischemia was induced by intraluminal occlusion of the right middle cerebral artery for 2 h and reperfusion followed for 22 h. To determine the neuroprotective effect of DOT, it was administered orally just before reperfusion and then 2 h after reperfusion. To examine the effects of combination therapy on survival, rats were divided into groups treated with edaravone, DOT, and edaravone and DOT. Microglial activation, neutrophil infiltration and brain-derived neurotrophic factor (BDNF) expression were examined in surviving animals. Infarct volume was significantly reduced by DOT (100, 200 and 400 mg/kg; P < 0.05), and edaravone plus DOT markedly improved the survival rate after transient ischemia (P = 0.0133). Microglial activation was reduced by edaravone and DOT and their combination (P < 0.05), and neutrophil infiltration was lowered in these groups (P < 0.05). BDNF-positive cells were increased in the combination edaravone and DOT group (P < 0.05). It appears that the neuroprotective mechanisms of combined therapy involve inhibition of microglial activation, reduction of invading neutrophils and enhancement of BDNF expression.
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Affiliation(s)
- K-H Cho
- College of Oriental Medicine, Kyung Hee University, Seoul, Korea
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Abstract
Tumor metastasis to the pituitary gland has been infrequently reported, and this is probably because only a small proportion of these patients are symptomatic. Most of the symptoms of this malady are related to diabetes insipidus. A 78-year-old man was diagnosed 2 years previously with stage IIIA adenocarcinoma of the lung and treated with sequential chemoradiation therapy and later with whole-brain radiation therapy because of newly developed brain metastasis; he was then admitted to our hospital with symptoms of polydipsia and polyuria. He was confirmed to have central diabetes insipidus that was caused by the pituitary metastasis from lung cancer. His symptoms resolved after treatment with desmopressin. Because of the rarity of this manifestation in lung cancer patients, we report on this case along with a brief review of the relevant literature.
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Affiliation(s)
- Jae Wook Jung
- Department of Internal Medicine, Korea Cancer Center Hospital, Gongneung-dong, Nowon-gu, Seoul, Korea
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Park KY, Lee HJ, Jung JW, Choi YH, Nam SB, Ahn SH, Kim CH, Lee JC. A Case of Different Response of Miliary Lung and Intracranial Nodules to Antituberculous Therapy. Tuberc Respir Dis (Seoul) 2008. [DOI: 10.4046/trd.2008.64.2.153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Kwang Young Park
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Ho Jin Lee
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Jae Wook Jung
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Yoon Hee Choi
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Seung Bum Nam
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Se Han Ahn
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Cheol Hyeon Kim
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Jae Cheol Lee
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
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48
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Lee HJ, Nam SB, Jung JW, Na II, Kim CH, Ryoo BY, Choe DW, Kang JH, Lee JC. Gefitinib-Related Interstitial Pneumonia. Tuberc Respir Dis (Seoul) 2007. [DOI: 10.4046/trd.2007.62.2.134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Ho Jin Lee
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Seung Bum Nam
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Jae Wook Jung
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Im Il Na
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Cheol Hyeon Kim
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Baek-Yeol Ryoo
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Du Whan Choe
- Department of Radiology, Korea Cancer Center Hospital, Seoul, Korea
| | - Jin Hyung Kang
- Department of Internal Medicine, Kangnam St. Mary's Hospital, Seoul, Korea
| | - Jae Cheol Lee
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
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Nam SB, Park KY, Lee HJ, Jung JW, Choi YH, Kim HS, Kim CH, Lee JC. A Case of Pulmonary Alveolar Proteinosis with Spontaneous Resolution. Tuberc Respir Dis (Seoul) 2007. [DOI: 10.4046/trd.2007.63.3.294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Seung Bum Nam
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Kwang Young Park
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Ho Jin Lee
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Jae Wook Jung
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Yoon Hee Choi
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Hyo Seok Kim
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Cheol Hyeon Kim
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Jae Cheol Lee
- Department of Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
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Jin DQ, Jung JW, Lee YS, Kim JA. 2,3,7,8-Tetrachlorodibenzo-p-dioxin inhibits cell proliferation through arylhydrocarbon receptor-mediated G1 arrest in SK-N-SH human neuronal cells. Neurosci Lett 2004; 363:69-72. [PMID: 15157999 DOI: 10.1016/j.neulet.2004.03.047] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2004] [Revised: 03/15/2004] [Accepted: 03/22/2004] [Indexed: 12/14/2022]
Abstract
The neurotoxic mechanism of 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) has not been completely elucidated. In this study we investigated the possible role of cell cycle regulators and their dependence on arylhydrocarbon receptor (AhR) in the TCDD-mediated inhibition of cell proliferation using a human neuronal cell system. TCDD suppressed DNA synthesis of SK-N-SH human neuronal cells determined by [(3)H]thymidine incorporation which was significantly prevented either by pretreatment with alpha-naphthoflavone (alpha-NF), a partial AhR antagonist, or 8-methoxypsoralen (MOP), a binding inhibitor of activated AhR to dioxin response elements. Cell cycle analysis showed that TCDD induced a G(1) cell cycle arrest, which was also significantly prevented by pretreatment with alpha-NF and MOP. TCDD did not alter the expression of cyclin D, cyclin E, p21 and p53. However, TCDD induced an enhanced expression of p27 and a hypophosphorylation of pRb, which was prevented by alpha-NF and MOP. Combined, these results suggest that the TCDD-induced inhibition of neuronal cell proliferation may be due to the AhR-dependent G(1) arrest through an enhanced expression of p27 and a hypophosphorylation of pRB.
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Affiliation(s)
- Da-Qing Jin
- College of Pharmacy, Yeungnam University, Gyongsan 712-749, South Korea
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