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Lee JS, Lee SY, Chin HS, Kim NR, Jung JW. Microstructure of the corneal endothelial transition zone in different laboratory animals. Mol Vis 2024; 30:107-113. [PMID: 38601017 PMCID: PMC11006004] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 03/15/2024] [Indexed: 04/12/2024] Open
Abstract
Purpose To compare the microstructure of the corneal endothelial transition zone in different laboratory animals. Methods Flat-mount corneas of rabbits, rats, and mice were stained with Alizarin Red S (ARS) and observed using scanning electron microscopy (SEM). The progenitor cell markers p75 neurotrophin receptor (p75NTR), SRY-box transcription factor 9 (SOX9), leucine-rich repeat-containing G protein-coupled receptor 5 (Lgr5), telomerase reverse transcriptase (TERT), and proliferation marker Ki-67 were examined in the flat-mounted corneas of three laboratory animals using immunofluorescence microscopy. Results On flat mounts, proximity to the trabecular meshwork correlated with weaker ARS staining and greater polymorphism of endothelial cells in the transition zone in all animals. On SEM, distinct and smooth structures of the transition zone were negligibly detected in all animals. The endothelial cells in the transition zone had irregular shapes, with less dense, less wavy intercellular junctions, especially in murine corneas, exhibiting unique intercellular cystic spaces. In the transition zone of the rabbit cornea, progenitor cell markers p75NTR, SOX9, Lgr5, TERT, and proliferation marker Ki-67 were expressed, in contrast to those in other murine corneas. Conclusions Although the transition zone was not identified clearly, irregular cell morphology and loss of cell-cell contact were observed in all animal corneal endothelial cells. The proliferative capacity and the presence of progenitor cells were confirmed in the transition zone, especially in the rabbit cornea.
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Affiliation(s)
- Jun Seob Lee
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - So Young Lee
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Hee Seung Chin
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Na Rae Kim
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Ji Won Jung
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South 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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Shin H, Jung S, Jung JW. Comparison of Each Eye According to the Order of Noninvasive Keratographic Tear Film Evaluation. Korean J Ophthalmol 2023; 37:230-235. [PMID: 37309556 DOI: 10.3341/kjo.2022.0135] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 05/17/2023] [Indexed: 06/14/2023] Open
Abstract
PURPOSE To investigate the effect of order of examination on the results of noninvasive keratograph tear film evaluation using Keratograph5M in dry eye patients. METHODS One hundred and four patients with dry eye symptoms were analyzed retrospectively. All patients underwent bilateral noninvasive tear film evaluation using measurements of tear meniscus height (TMH) and noninvasive keratograph break-up time (NIKBUT) obtained using Keratograph5M. Measurements were performed sequentially in the order of right TMH, left TMH, right NIKBUT, and left NIKBUT. RESULTS There was no statistically significant difference in TMH values between the right and left eyes (0.24 ± 0.08 and 0.23 ± 0.08 mm, respectively). Mean NIKBUT-first (time at first tear film break-up) and mean NIKBUT-average (the mean of all tear film break-up time over the entire cornea) were 6.17 ± 3.28 and 10.00 ± 3.97 seconds, respectively, for right, and 7.43 ± 3.86 and 11.57 ± 4.34 seconds, respectively, for left eyes. In addition, mean NIKBUT-first between right and left eyes, and mean NIKBUT-average between them were statistically significant (p = 0.013 and p = 0.007, respectively). Mean NIKBUT and mean TMH differences were not significantly influenced by right or left eyes, age, or sex (all p > 0.050). Spearman correlation analyses of TMH, NIKBUT-first, and NIKBUT-average results showed moderate positive correlations between right and left eyes (r = 0.470, r = 0.322, and r = 0.576, respectively; p < 0.001). CONCLUSIONS TMH evaluation was not affected by test order; however, NIKBUT measurement was affected by test order, because of reflex tearing due to forced eye opening during the examination. Therefore, TMH should be evaluated before NIKBUT, and sufficient time interval and caution should be needed between NIKBUT measurements on both eyes.
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Affiliation(s)
- Haeeun Shin
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, Korea
| | - Soyeon Jung
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, Korea
| | - Ji Won Jung
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, Korea
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Jeong JH, Lee WH, Min SC, Kim BK, Park OB, Chokkakula S, Ahn SJ, Oh S, Park JH, Jung JW, Jung JM, Kim EG, Song MS. Evaluation of the Antiviral Efficacy of Subcutaneous Nafamostat Formulated with Glycyrrhizic Acid against SARS-CoV-2 in a Murine Model. Int J Mol Sci 2023; 24:ijms24119579. [PMID: 37298530 DOI: 10.3390/ijms24119579] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 05/30/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
The ongoing COVID-19 pandemic highlights the urgent need for effective antiviral agents and vaccines. Drug repositioning, which involves modifying existing drugs, offers a promising approach for expediting the development of novel therapeutics. In this study, we developed a new drug, MDB-MDB-601a-NM, by modifying the existing drug nafamostat (NM) with the incorporation of glycyrrhizic acid (GA). We assessed the pharmacokinetic profiles of MDB-601a-NM and nafamostat in Sprague-Dawley rats, revealing rapid clearance of nafamostat and sustained drug concentration of MDB-601a-NM after subcutaneous administration. Single-dose toxicity studies showed potential toxicity and persistent swelling at the injection site with high-dose administration of MDB-601a-NM. Furthermore, we evaluated the efficacy of MDB-601a-NM in protecting against SARS-CoV-2 infection using the K18 hACE-2 transgenic mouse model. Mice treated with 60 mg/kg and 100 mg/kg of MDB-601a-NM exhibited improved protectivity in terms of weight loss and survival rates compared to the nafamostat-treated group. Histopathological analysis revealed dose-dependent improvements in histopathological changes and enhanced inhibitory efficacy in MDB-601a-NM-treated groups. Notably, no viral replication was detected in the brain tissue when mice were treated with 60 mg/kg and 100 mg/kg of MDB-601a-NM. Our developed MDB-601a-NM, a modified Nafamostat with glycyrrhizic acid, shows improved protectivity against SARS-CoV-2 infection. Its sustained drug concentration after subcutaneous administration and dose-dependent improvements makes it a promising therapeutic option.
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Affiliation(s)
- Ju Hwan Jeong
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju-si 28644, Republic of Korea
| | - Woong Hee Lee
- MODNBIO Inc., Seoul 08378, Republic of Korea
- Institute of Biotechnology, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Seong Cheol Min
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju-si 28644, Republic of Korea
| | - Beom Kyu Kim
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju-si 28644, Republic of Korea
| | - On Bi Park
- Biomedical Engineering from the Department of Biotechnology, Graduate School of Advanced Fusion Technology, Cheongju University, Cheongju-si 28160, Republic of Korea
| | - Santosh Chokkakula
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju-si 28644, Republic of Korea
| | - Seong Ju Ahn
- Biomedical Engineering from the Department of Biotechnology, Graduate School of Advanced Fusion Technology, Cheongju University, Cheongju-si 28160, Republic of Korea
| | - Sol Oh
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju-si 28644, Republic of Korea
| | - Ji-Hyun Park
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju-si 28644, Republic of Korea
| | - Ji Won Jung
- Department of Medical Engineering, Catholic University of Daegu (DCU), Gyeongsan-si 38430, Republic of Korea
| | - Ji Min Jung
- Department of Medical IT, Catholic Kwandong University, Gangneung-si 25601, Republic of Korea
| | - Eung-Gook Kim
- Department of Biochemistry, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju 28644, Republic of Korea
| | - Min-Suk Song
- Department of Microbiology, Chungbuk National University College of Medicine and Medical Research Institute, Cheongju-si 28644, Republic of Korea
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Lee YS, Kim DS, Jung JW, Jo YH, Lee CH, Lee BG. Risk factors of loss of reduction after acromioclavicular joint dislocation treated with a hook plate. J Orthop Traumatol 2023; 24:10. [PMID: 36961582 PMCID: PMC10039153 DOI: 10.1186/s10195-023-00685-8] [Citation(s) in RCA: 1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 01/21/2023] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND Acromioclavicular joint fixation using a hook plate is effective for the treatment of acute acromioclavicular joint dislocation. However, several studies have reported some complications including loss of reduction after surgery for acromioclavicular joint dislocation. This study aimed to identify the risk factors associated with the loss of reduction after acromioclavicular joint dislocation surgery using a hook plate. METHODS This was a retrospective study that assessed 118 patients with acromioclavicular joint dislocation, who were diagnosed between March 2013 and January 2019 and underwent surgical treatment using the hook plate (reduction loss group: n = 38; maintenance group: n = 80). The mean follow-up period was 29.9 months (range, 24-40 months). We assessed the range of motion, the American Shoulder and Elbow Surgeons score (ASES), visual analog scale score for pain, and a subjective shoulder value. Radiological assessment of coracoid clavicular distance was performed. The risk factors of reduction loss were analyzed using multivariable logistic regression analysis. RESULTS Age (p = 0.049), sex (female, p = 0.03, odds ratio OR = 4.81), Rockwood type V (p = 0.049, OR = 2.20), and time from injury to surgery > 7 days (p = 0.018, OR = 2.59) were statistically significant factors in the reduction loss group. There were no significant differences in the clinical outcomes for range of motion, ASES, subjective shoulder value, and visual analog scale scores between the two groups. In the radiological results, preoperative coracoid clavicular distance (p = 0.039) and ratio (p = 0.001), and over-reduction (p = 0.023, OR = 0.40) were significantly different between the two groups. The multivariate logistic regression analysis identified the female sex (p = 0.037, OR = 5.88), a time from injury to surgery > 7 days (p = 0.019, OR = 3.36), and the preoperative coracoid clavicular displacement ratio of the injured shoulder (p < 0.001, OR = 1.03) as risk factors associated with reduction loss following surgery using a hook plate for acromioclavicular dislocation. CONCLUSION A delayed timing of surgery > 7 days, preoperative coracoid clavicular displacement ratio of the injured shoulder, and female sex were identified as risk factors for loss of reduction after surgery using a hook plate for acromioclavicular joint dislocation. LEVEL OF EVIDENCE Level IV; retrospective comparison; treatment study.
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Affiliation(s)
- Young Seok Lee
- Department of Orthopedic Surgery, Hanyang University Guri Hospital, Guri, Republic of Korea
| | - Doo Sup Kim
- Department of Orthopedic Surgery, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Ji Won Jung
- Department of Orthopedic Surgery, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Young-Hoon Jo
- Department of Orthopedic Surgery, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Chang-Hun Lee
- Department of Orthopedic Surgery, College of Medicine, Hanyang University, Seoul, Republic of Korea
| | - Bong Gun Lee
- Department of Orthopedic Surgery, College of Medicine, Hanyang University, Seoul, Republic of Korea.
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Kim J, Koh JW, Choi HJ, Byun YS, Jung JW, Lee SM. Characteristics of Hyaluronic Acid and Its Use in Ocular Surface Diseases Including Dry Eye. J Korean Ophthalmol Soc 2023. [DOI: 10.3341/jkos.2023.64.2.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Hyaluronic acid (HA) is a polysaccharide found in the extracellular matrix of the epithelial, nervous, and connective tissues of vertebrates. It is widely used in the treatment of ocular surface diseases (OSDs), including dry eye, due to its high water-retaining capacity, viscoelasticity, and role as a signaling molecule in inflammation and wound healing. This paper reviews the physicochemical and biological properties of HA related to the treatment of OSDs and the results of published preclinical studies, clinical trials, and meta-analyses on the effects of HA eye drops on the tear film, the mechanism of action of HA eye drops, and its clinical effects and adverse events in OSDs, such as corneal/conjunctival epithelial defects, dry eye, and postoperative dry eye. This review should help inform clinical judgments by providing clinical evidence and precautions on the use of HA eye drops in OSDs, including dry eye.
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Min JK, Chin HS, Jung KH, Jung JW. Prevalence and Risk Factors of Hydroxychloroquine Retinopathy in Rheumatic Patients with Dry Eye Symptoms. J Korean Ophthalmol Soc 2023. [DOI: 10.3341/jkos.2023.64.2.123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Purpose: Hydroxychloroquine is widely used for long-term treatment of rheumatic diseases, but the drug can trigger irreversible toxic retinopathy. We studied the prevalence of, and the risk factors for, hydroxychloroquine retinopathy in rheumatic patients with dry eye symptoms and we introduce a representative case.Methods: We retrospectively studied a cohort of 133 rheumatological patients who had taken hydroxychloroquine for at least 12 months and who visited our ophthalmology clinic with dry eye symptoms from April 2016 to December 2021. Hydroxychloroquine retinopathy was diagnosed via fundus photography, spectral-domain optical coherence tomography, the Humphrey visual field test, autofluorescence fundus photography, and multifocal electroretinography. The principal outcomes were the prevalence of retinopathy at the first screening and the risk factors.Results: Of the 133 patients, hydroxychloroquine retinopathy was diagnosed in seven (5.2%) at the first screenings. The Mann-Whitney U-test revealed that older age; higher daily doses; longer dosing duration; greater cumulative doses; and higher daily and cumulative doses/kg were statistically significant in terms of retinopathy development. On multivariate logistic regression analysis, the average daily dose (odds ratio [OR] 6.02; 95% confidence interval [CI] 1.64-22.12, 100 mg increments) and duration of dosing (OR 3.39; 95% CI 1.19-9.62, 5 years increments) remained statistically significant (<i>P</i> = 0.021, <i>P</i> = 0.007 respectively)Conclusions: Ophthalmologists should enquire about any history of hydroxychloroquine therapy, and perform a retinal examination, when encountering dry eye in patients with rheumatic disease. Early detection of hydroxychloroquine retinopathy followed by discontinuation of hydroxychloroquine is the only way to prevent visual loss. High daily drug doses and long dosing durations are risk factors for retinopathy.
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Shin H, Jung S, Jung JW. Effects of Non-invasive Keratograph Break-Up Time on the Repeatability of Keratometry Measurements. J Korean Ophthalmol Soc 2023. [DOI: 10.3341/jkos.2023.64.2.99] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Purpose: To evaluate the effects of the non-invasive keratograph break-up time on the repeatability of keratometric measurements derived using the Keratograph 5M in patients with dry eye syndrome.Methods: Thirty-six patients with dry eye and 30 controls were enrolled. We measured keratometric values twice in all subjects and explored whether the two measurements differed by more than 0.5 diopter (D) (the absolute value). We also evaluated the relationship between the absolute difference and the non-invasive keratograph break-up time (NIKBUT).Results: The intraclass correlation coefficients for astigmatism, flat keratometry (K), steep K, and mean K were all higher than 0.95 in patients, thus lower than in controls. The proportion of eyes with absolute differences over 0.5 D between the two keratometric values differed significantly between the dry eye and control groups in terms of the flat K and Kmax values (p = 0.033, 0.037). The average NIKBUT was negatively correlated with the absolute differences in Kmax and astigmatism (<i>p</i> = 0.030, R<sup>2</sup> = 0.134 and <i>p</i> = 0.017, R<sup>2</sup> = 0.160).Conclusions: In patients with dry eye syndrome, keratometric measurements are reliably repeatable, but slightly less so than in normal controls. The proportions of eyes exhibiting absolute keratometric differences over 0.5 D (two measurements) differed in the dry eye and control groups. The lower the non-invasive keratograph break-up time, the poorer the repeatability of keratometric measurements in the dry eye group. Therefore, care is required when obtaining keratometric values for such patients.
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Shin H, Min JK, Kim NR, Seo KY, Chin HS, Lee S, Jung JW. Effects of Y-27632, a Rho-associated Kinase Inhibitor, on Human Corneal Endothelial Cells Cultured by Isolating Human Corneal Endothelial Progenitor Cells. Korean J Ophthalmol 2023; 37:31-41. [PMID: 36549303 PMCID: PMC9935058 DOI: 10.3341/kjo.2022.0133] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 11/05/2022] [Indexed: 12/24/2022] Open
Abstract
CONCLUSIONS Y-27632 enabled the isolation and expansion of HCEPs. It also enhanced the proliferation, viability, and migration of differentiated HCEPs. METHODS HCEPs were isolated and expanded in a medium with and without 10μM Y-27632, and then differentiated into HCECs in a medium with fetal bovine serum. The characteristics of HCEPs and differentiated HCEPs were confirmed by immunofluorescence staining. The proliferation, viability, morphology, and wound-healing ability of differentiated HCEPs were assessed in the presence of different concentrations of Y-27632. PURPOSE Human corneal endothelial progenitor cells (HCEPs), which has been selectively isolated and differentiated into human corneal endothelial cells (HCECs), are crucial for repairing corneal endothelial damage. In this study, we evaluated the roles of a Rho-assisted kinase (ROCK) inhibitor, Y-27632, on the isolation and expansion of HCEPs, and assessed the in vitro effects of different concentrations of Y-27632 on the differentiated HCEPs. RESULTS Y-27632 enabled the isolation and expansion of HCEPs from the corneal endothelium. The differentiated HCEPs showed an optimal increase in proliferation and survival in the presence of 10μM Y-27632. As the concentration of Y-27632 increased, differentiated HCEPs became elongated, and actin filaments were redistributed to the periphery of cells. Y-27632 also caused a concentration-dependent enhancement in the wound-healing ability of differentiated HCEPs.
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Affiliation(s)
- Haeeun Shin
- Department of Ophthalmology, Inha Vision Science Laboratory, Inha University College of Medicine, Incheon,
Korea
| | - Joon Ki Min
- Department of Ophthalmology, Inha Vision Science Laboratory, Inha University College of Medicine, Incheon,
Korea
| | - Na Rae Kim
- Department of Ophthalmology, Inha Vision Science Laboratory, Inha University College of Medicine, Incheon,
Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul,
Korea
| | - Hee Seung Chin
- Department of Ophthalmology, Inha Vision Science Laboratory, Inha University College of Medicine, Incheon,
Korea
| | - Soyoung Lee
- Translational Research Center, Inha University College of Medicine, Incheon,
Korea
| | - Ji Won Jung
- Department of Ophthalmology, Inha Vision Science Laboratory, Inha University College of Medicine, Incheon,
Korea
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Nguyen TP, Jung JW, Yoo YJ, Choi SH, Yoon J. Intelligent Evaluation of Global Spinal Alignment by a Decentralized Convolutional Neural Network. J Digit Imaging 2022; 35:213-225. [PMID: 35064369 PMCID: PMC8921409 DOI: 10.1007/s10278-021-00533-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 09/30/2021] [Accepted: 10/31/2021] [Indexed: 01/12/2023] Open
Abstract
Degenerative changes of the spine can cause spinal misalignment, with part of the spine arching beyond normal limits or moving in an incorrect direction, potentially resulting in back pain and significantly limiting a person’s mobility. The most important parameters related to spinal misalignment include pelvic incidence, pelvic tilt, lumbar lordosis, thoracic kyphosis, and cervical lordosis. As a general rule, alignment of the spine for diagnosis and surgical treatment is estimated based on geometrical parameters measured manually by experienced doctors. However, these measurements consume the time and effort of experts to perform repetitive tasks that could be automated, especially with the powerful support of current artificial intelligence techniques. This paper focuses on creation of a decentralized convolutional neural network to precisely measure 12 spinal alignment parameters. Specifically, this method is based on detecting regions of interest with its dimensions that decrease by three orders of magnitude to focus on the necessary region to provide the output as key points. Using these key points, parameters representing spinal alignment are calculated. The quality of the method’s performance, which is the consistency of the measurement results with manual measurement, is validated by 30 test cases and shows 10 of 12 parameters with a correlation coefficient > 0.8, with pelvic tilt having the smallest absolute deviation of 1.156°.
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Affiliation(s)
- Thong Phi Nguyen
- Department of Mechanical Engineering, BK21 FOUR ERICA-ACE Centre, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan, Gyeonggi, 15588, Republic of Korea
| | - Ji Won Jung
- Department of Orthopaedic Surgery, Hanyang University College of Medicine, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Yong Jin Yoo
- Department of Orthopaedic Surgery, Hanyang University College of Medicine, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea
| | - Sung Hoon Choi
- Department of Orthopaedic Surgery, Hanyang University College of Medicine, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Republic of Korea.
| | - Jonghun Yoon
- Department of Mechanical Engineering, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Gyeonggi-do, Ansan-si, 15588, Republic of Korea.
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Kim HS, Lee JY, Jung JW, Lee KH, Kim MJ, Park SB. Is mannitol combined with furosemide a new treatment for refractory lymphedema? A case report. World J Clin Cases 2021; 9:8804-8811. [PMID: 34734059 PMCID: PMC8546829 DOI: 10.12998/wjcc.v9.i29.8804] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 07/30/2021] [Accepted: 09/08/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Mannitol is a hyperosmolar agent and the combination of mannitol and furosemide is a widely used treatment for intracranial pressure control. Considering the hypertonic properties of mannitol to move water out of intracellular spaces, we hypothesized that mannitol combined with furosemide could relieve focal tissue swelling in refractory lymphedema.
CASE SUMMARY A 90-year-old female had been diagnosed with intracranial hemorrhage and received a combination of mannitol and furosemide for intracranial pressure control. Independent of the intracranial hemorrhage, she had refractory lymphedema of the left lower extremity since 1998. Remarkably, after receiving the mannitol and furosemide, the patient’s lower extremity lymphedema improved dramatically. After the mannitol and furosemide were discontinued, the lymphedema worsened in spite of complete decongestive therapy (CDT) and intermittent pneumatic compression treatment (IPC). To identify the presumed effect of mannitol and furosemide on the lymphedema, these agents were resumed, and the lymphedema improved again.
CONCLUSION The present case raises the possibility that a combination of mannitol and furosemide might be considered another effective therapeutic option for refractory lymphedema when CDT and IPC are ineffective.
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Affiliation(s)
- Hyeon Seong Kim
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Jae Young Lee
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Ji Won Jung
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Kyu Hoon Lee
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Mi Jung Kim
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Si-Bog Park
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
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Lee DH, You J, Jung JW, Park JW, Lee JI. Comparison between normal and reverse orientation of graft in functional and histomorphological outcomes after autologous nerve grafting: An experimental study in the mouse model. Microsurgery 2021; 41:645-654. [PMID: 34390500 DOI: 10.1002/micr.30795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 06/18/2021] [Accepted: 08/05/2021] [Indexed: 12/31/2022]
Abstract
BACKGROUND Autologous nerve grafting has been considered the gold standard for the treatment of irreparable nerve gaps. However, the choice of effective proximodistal orientation of autografts (normal or reversed) is controversial. Therefore, we compared functional and histological outcomes between normal and reversed orientations of autografts in a mouse sciatic nerve model. MATERIALS AND METHODS Thirty C57BL/6J mice weighing 20-25 g were assigned to the donor, normally oriented autograft, and reverse-oriented autograft groups (n = 10 per group). A 10-mm section of the sciatic nerve was harvested from a donor mouse. Half the harvested nerve was grafted onto an irreparable gap in a recipient mouse using either a normal or reversed orientation. The sciatic functional index (SFI) was measured biweekly for up to 12 weeks postoperatively. Morphological analysis was performed using immunofluorescence staining for neurofilament (NF) and myelin protein zero (P0) in cross-sectional and whole-mount nerve preparations in 12 weeks postoperatively. Additionally, morphological analysis of the tibialis anterior muscle was performed using hematoxylin and eosin staining. NF or P0-expressing axons were counted and cross-sectional area (CSA) and minimum Feret's diameter of myofibers were measured. RESULTS The SFI recovered gradually up to 12 weeks after autografting, but there were no significant differences in the SFI between the normal and reversed orientations. The number of NF-expressing axons in center of graft was significantly higher in the normal orientation than in the reversed orientation (P < .05). However, there were no significant differences in the number and mean intensity of P0-expressing axons between the orientations. The CSA of myofibers was significantly larger in the normal orientation than in the reversed orientation (P < .05). CONCLUSIONS Normally oriented autografts promote axonal regrowth and prevent neurogenic muscular atrophy compared with reverse-oriented autografts. However, despite these positive histomorphometric effects, the proximodistal orientation of the autograft does not affect functional outcomes.
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Affiliation(s)
- Duk Hee Lee
- Department of Emergency Medicine, Ewha Women's University Mokdong Hospital, Seoul, South Korea
| | - Jooyoung You
- Department of Orthopedic Surgery, Hanyang University Guri Hospital, Guri, South Korea
| | - Ji Won Jung
- Department of Orthopedic Surgery, Hanyang University Guri Hospital, Guri, South Korea
| | - Jong Woong Park
- Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul, South Korea
| | - Jung Il Lee
- Department of Orthopedic Surgery, Korea University Guro Hospital, Seoul, South Korea
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Kim HS, Jung JW, Jung YJ, Ro YS, Park SB, Lee KH. Complete recovery of herpes zoster radiculopathy based on electrodiagnostic study: A case report. World J Clin Cases 2021; 9:4303-4309. [PMID: 34141794 PMCID: PMC8173409 DOI: 10.12998/wjcc.v9.i17.4303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/03/2021] [Accepted: 03/24/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Herpes zoster is a painful infectious disease caused by the varicella zoster virus. Herpes zoster radiculopathy, which is a type of segmental zoster paresis, can complicate the disease and cause motor weakness. This complication should be considered when a patient with a rash complains of acute-onset motor weakness, and the diagnosis can be verified via electrodiagnostic study.
CASE SUMMARY A 64-year-old female with a history of asthma presented to the emergency department with stabbing pain, an itching sensation, and a rash on the right anterior shoulder that had begun 5 d prior. Physical examination revealed multiple erythematous grouped vesicles in the right C4-5 and T1 dermatome regions. Because herpes zoster was suspected, the patient immediately received intravenous acyclovir. On the third hospital day, she complained of motor weakness in the right upper extremity. Magnetic resonance imaging of the cervical spine revealed mild intervertebral disc herniation at C4-C5 without evidence of nerve root compression. On the 12th hospital day, electrodiagnostic study revealed right cervical radiculopathy, mainly in the C5/6 roots. Six months later, monoparesis resolved, and follow-up electrodiagnostic study was normal.
CONCLUSION This case emphasizes that clinicians should consider the possibility of post-herpetic paresis, such as herpes zoster radiculopathy, and that electrodiagnostic study is useful for diagnosis and follow-up.
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Affiliation(s)
- Hyeon Seong Kim
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Ji Won Jung
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - You Jin Jung
- Department of Dermatology, Hanyang University Hospital, Seoul 04763, South Korea
| | - Young Suck Ro
- Department of Dermatology, Hanyang University Hospital, Seoul 04763, South Korea
| | - Si-Bog Park
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Kyu Hoon Lee
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
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Kim HS, Park JH, Lee HS, Lee JY, Jung JW, Park SB, Hyun DJ, Park S, Yoon J, Lim H, Choi YY, Kim MJ. Effects of Wearable Powered Exoskeletal Training on Functional Mobility, Physiological Health and Quality of Life in Non-ambulatory Spinal Cord Injury Patients. J Korean Med Sci 2021; 36:e80. [PMID: 33783145 PMCID: PMC8007419 DOI: 10.3346/jkms.2021.36.e80] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Accepted: 01/13/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Spinal cord injury (SCI) is a serious clinical condition that impacts a patient's physical, psychological, and socio-economic status. The aim of this pilot study was to evaluate the effects of training with a newly developed powered wearable exoskeleton (Hyundai Medical Exoskeleton [H-MEX]) on functional mobility, physiological health, and quality of life in non-ambulatory SCI patients. METHODS Participants received 60 minutes of walking training with a powered exoskeleton 3 times per week for 10 weeks (total 30 sessions). The 6-minute walking test (6MWT) and timed-up-and-go test (TUGT) were performed to assess ambulatory function. The physiological outcomes of interest after exoskeleton-assisted walking training were spasticity, pulmonary function, bone mineral density, colon transit time, and serum inflammatory markers. Effects of walking training on subjective outcomes were estimated by the Korean version of the Falls Efficacy Scale-International and the 36-Item Short-Form Health Survey version 2. RESULTS Ten participants finished 30 sessions of training and could ambulate independently. No severe adverse events were reported during the study. After training, the mean distance walked in the 6MWT (49.13 m) was significantly enhanced compared with baseline (20.65 m). The results of the TUGT also indicated a statistically significant improvement in the times required to stand up, walk 3 m and sit down. Although not statistically significant, clinically meaningful changes in some secondary physiological outcomes and/or quality of life were reported in some participants. CONCLUSION In conclusion, this study demonstrated that the newly developed wearable exoskeleton, H-MEX is safe and feasible for non-ambulatory SCI patients, and may have potential to improve quality of life of patients by assisting bipedal ambulation. These results suggest that the H-MEX can be considered a beneficial device for chronic non-ambulatory SCI patients. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT04055610.
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Affiliation(s)
- Hyeon Seong Kim
- Department of Rehabilitation Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jae Hyeon Park
- Department of Rehabilitation Medicine, Hanyang University Guri Hospital, Guri, Korea
| | - Ho Seok Lee
- Department of Rehabilitation Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Jae Young Lee
- Department of Rehabilitation Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Ji Won Jung
- Department of Rehabilitation Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Si Bog Park
- Department of Rehabilitation Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Dong Jin Hyun
- Robotics Lab., R&D Division of Hyundai Motor Company, Uiwang, Korea
| | - Sangin Park
- Robotics Lab., R&D Division of Hyundai Motor Company, Uiwang, Korea
| | - JuYoung Yoon
- Robotics Lab., R&D Division of Hyundai Motor Company, Uiwang, Korea
| | - Hyunseop Lim
- Robotics Lab., R&D Division of Hyundai Motor Company, Uiwang, Korea
| | - Yun Young Choi
- Department of Nuclear Medicine, Hanyang University College of Medicine, Seoul, Korea
| | - Mi Jung Kim
- Department of Rehabilitation Medicine, Hanyang University College of Medicine, Seoul, Korea.
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Kim JE, Kim NR, Chin HS, Seo KY, Kim TI, Jung JW. Factors associated with ocular surface epithelial damage in patients with primary Sjögren's syndrome. BMC Ophthalmol 2021; 21:114. [PMID: 33653304 PMCID: PMC7927221 DOI: 10.1186/s12886-021-01871-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 02/17/2021] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND The aim of this study was to evaluate the effects of systemic parameters, laboratory findings, oral parameters, and other ocular surface parameters on ocular surface epithelial damage in patients with primary Sjögren's syndrome (pSS). METHODS A total of 82 dry eye disease (DED) patients with pSS were enrolled in this study. Ocular surface epithelial damage was measured by ocular staining score (OSS). Systemic parameters, laboratory findings including serologic markers, oral parameters, and other ocular surface parameters were collected. Other ocular surface parameter assessments such as the Schirmer's test, fluorescein tear breakup time, meibomian gland examinations, noninvasive keratographic tear film break-up time measurements using the Keratograph® 5 M were performed, and the Ocular Surface Disease Index was determined. RESULTS In a multivariate analysis, decreased age and increased duration of pSS were significantly related to increased logarithm-transformed OSS (β = -0.011, P = 0.043 and β = 0.003, P = 0.008). Among the ocular surface parameters, decreased fluorescein tear breakup time and increased MGD grade were significantly associated with increased logarithm-transformed OSS (β = -0.183, P < 0.001 and β = 0.192, P = 0.049). CONCLUSIONS Ocular surface epithelial damage in patients with pSS was associated with young age, long duration of disease, unstable tear film, and decreased meibomian gland function.
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Affiliation(s)
- Ji Eun Kim
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, 27, Inhang-Ro, Jung-gu, 22332, Incheon, South Korea
| | - Na Rae Kim
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, 27, Inhang-Ro, Jung-gu, 22332, Incheon, South Korea
| | - Hee Seung Chin
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, 27, Inhang-Ro, Jung-gu, 22332, Incheon, South Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae-Im Kim
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Ji Won Jung
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, 27, Inhang-Ro, Jung-gu, 22332, Incheon, South Korea.
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Jung JW, Park YC, Lee JY, Park JH, Jang SH. Bilateral musculocutaneous neuropathy: A case report. World J Clin Cases 2021; 9:1237-1246. [PMID: 33644190 PMCID: PMC7896669 DOI: 10.12998/wjcc.v9.i5.1237] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 12/14/2020] [Accepted: 12/23/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Isolated musculocutaneous nerve injury is a rare condition. Herein, we report the first case of bilateral musculocutaneous neuropathy after vigorous stretching of both upper extremities with normal results of sensory nerve action potential. Clinicians should be aware of this rare condition that can appear bilaterally. In addition, the interpretation of the aberrant electrodiagnostic study results of this case was discussed.
CASE SUMMARY A 29-year-old male complaining of bilateral forearm tingling and upper extremity weakness visited the outpatient clinic. The symptoms began 6 mo prior, and he visited another hospital before visiting our department. The diagnosis was not made even after cervical spine magnetic resonance imaging, electrodiagnostic study, brain magnetic resonance imaging, and arteriography were conducted. The patient performed unique exercises that stretched the pectoralis minor and coracobrachialis muscles. On the follow-up electrodiagnostic study, abnormal spontaneous activities in the bilateral biceps and brachialis muscles were observed. The patient was diagnosed with bilateral musculocutaneous neuropathy. Steroid pulse therapy was administered for approximately 6 wk. After treatment, his muscle strength returned to the predisease condition.
CONCLUSION Clinicians should be aware of this condition, have adequate understanding of anatomy, and advise to correct inappropriate exercises.
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Affiliation(s)
- Ji Won Jung
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Yu Chan Park
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Jae Young Lee
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Jae Hyeon Park
- Department of Rehabilitation Medicine, Hanyang University Guri Hospital, Guri 11923, South Korea
| | - Seong Ho Jang
- Department of Rehabilitation Medicine, Hanyang University Guri Hospital, Guri 11923, South Korea
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Lee SH, Chin HS, Jung JW. Evaluation of the Cone Contrast Sensitivity Test in Normal Eyes and those with Congenital Color Blindness. J Korean Ophthalmol Soc 2021. [DOI: 10.3341/jkos.2021.62.2.273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shin SJ, You SC, Jeon H, Jung JW, An MH, Park RW, Roh J. Style transfer strategy for developing a generalizable deep learning application in digital pathology. Comput Methods Programs Biomed 2021; 198:105815. [PMID: 33160111 DOI: 10.1016/j.cmpb.2020.105815] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 06/28/2020] [Accepted: 10/20/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND AND OBJECTIVES Despite recent advances in artificial intelligence for medical images, the development of a robust deep learning model for identifying malignancy on pathology slides has been limited by problems related to substantial inter- and intra-institutional heterogeneity attributable to tissue preparation. The paucity of available data aggravates this limitation for relatively rare cancers. Here, using ovarian cancer pathology images, we explored the effect of image-to-image style transfer approaches on diagnostic performance. METHODS We leveraged a relatively large public image set for 142 patients with ovarian cancer from The Cancer Image Archive (TCIA) to fine-tune the renowned deep learning model Inception V3 for identifying malignancy on tissue slides. As an external validation, the performance of the developed classifier was tested using a relatively small institutional pathology image set for 32 patients. To reduce deterioration of the performance associated with the inter-institutional heterogeneity of pathology slides, we translated the style of the small image set of the local institution into the large image set style of the TCIA using cycle-consistent generative adversarial networks. RESULTS Without style transfer, the performance of the classifier was as follows: area under the receiver operating characteristic curve (AUROC) = 0.737 and area under the precision recall curve (AUPRC) = 0.710. After style transfer, AUROC and AUPRC improved to 0.916 and 0.898, respectively. CONCLUSIONS This study provides a case of the successful application of style transfer technology to generalize a deep learning model into small image sets in the field of digital pathology. Researchers at local institutions can select this collaborative system to make their small image sets acceptable to the deep learning model.
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Affiliation(s)
- Seo Jeong Shin
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Republic of Korea
| | - Seng Chan You
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Hokyun Jeon
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Republic of Korea
| | - Ji Won Jung
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea; Asan Institute for Life Science, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Min Ho An
- So Ahn Public Health Center, Wando-gun, Jeollanam-do, Republic of Korea
| | - Rae Woong Park
- Department of Biomedical Sciences, Ajou University Graduate School of Medicine, Suwon, Republic of Korea; Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Republic of Korea.
| | - Jin Roh
- Department of Pathology, Ajou University Hospital, Suwon, Republic of Korea.
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Jung JW, Kim HS, Yang JH, Lee KH, Park SB. Extracorporeal shock wave therapy treatment of painful hematoma in the calf: A case report. World J Clin Cases 2020; 8:6511-6516. [PMID: 33392338 PMCID: PMC7760439 DOI: 10.12998/wjcc.v8.i24.6511] [Citation(s) in RCA: 2] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/26/2020] [Accepted: 11/02/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Extracorporeal shock wave therapy (ESWT) can be applied to various musculoskeletal conditions including calcific tendinitis. Muscle injuries can lead to hematomas, and unabsorbed hematomas sometimes cause pain. We report a case of painful hematoma successfully treated with ESWT. To our knowledge, this is the first reported case of painful intramuscular hematoma treated with ESWT.
CASE SUMMARY A 65-year-old man visited the outpatient department for left calf pain with swelling that had persisted since he slipped two weeks prior. The calf pain had persisted and was rated visual analog scale 7. On physical examination, there was a localized, stiff, ovoid mass on his left upper posterior calf. The pain was aggravated by dorsiflexion of the left ankle or weight-bearing on the left foot. Initial diagnostic ultrasonography showed a hematoma in the left gastrocnemius muscle; its texture was firm with low heterogeneity. We applied ESWT to the hematoma. His pain decreased immediately to a visual analog scale 3, and the mass was softened. The texture of the hematoma became more heterogeneous on ultrasonography. Due to planned overseas travel, he returned three months after the initial visit to report that the pain and swelling were dramatically relieved after ESWT.
CONCLUSION We propose that painful hematomas could be a new indication for ESWT. Further investigation on the effects of ESWT for hematomas is needed.
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Affiliation(s)
- Ji Won Jung
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Hyeon Seong Kim
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Jung Ho Yang
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Kyu Hoon Lee
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
| | - Si-Bog Park
- Department of Rehabilitation Medicine, Hanyang University Hospital, Seoul 04763, South Korea
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Kim JE, Jung JW. Refractory dry eye disease associated with Meige's syndrome induced by long-term use of an atypical antipsychotic. BMC Ophthalmol 2020; 20:474. [PMID: 33267850 PMCID: PMC7709279 DOI: 10.1186/s12886-020-01738-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Accepted: 11/17/2020] [Indexed: 11/13/2022] Open
Abstract
Background We report a case of Meige’s syndrome induced by an atypical antipsychotic (blonanserin) that presented with refractory dry eye disease. Case presentation A 37-year-old woman with a 6-month history of foreign body sensation in the eyes and difficulty in opening her eyes was treated at a local clinic for dry eye disease. Despite this treatment, her symptoms did not improve and she was transferred to our attention. Our assessment revealed involuntary movements of her eyelids accompanied by repetitive pursing of her lips. She had been undergoing treatment with blonanserin for 5 years for schizophrenia. She was diagnosed with drug-induced Meige’s syndrome after a psychiatric and neurological consultation. After a 2-month gradual dose reduction and discontinuing blonanserin, involuntary movements of the eyelids with oromandibular dystonia were resolved. Three months after discontinuing blonanserin, there was no recurrence of symptoms, and she had no exacerbation of psychotic symptoms. Conclusions In patients with refractory dry eye disease, especially those with involuntary movements of the eyelids with oromandibular dystonia, it is important to ask about their psychotropic medications and to consider the possibility of drug-induced Meige’s syndrome and discontinuation of medications, if possible.
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Affiliation(s)
- Ji Eun Kim
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Ji Won Jung
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea.
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Park SH, Che CY, Kim SI, Park CY, Lee JH, Kim YH, Jung JW, Lee JS, Lee JE. Comparison of clinical outcomes after femtosecond laser in situ keratomileusis in eyes with low or high myopia. Int J Ophthalmol 2020; 13:1780-1787. [PMID: 33215010 DOI: 10.18240/ijo.2020.11.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 03/23/2020] [Indexed: 11/23/2022] Open
Abstract
AIM To compare the clinical results of femtosecond (FS) laser in situ keratomileusis (LASIK) in high myopic patients and low myopic patients. METHODS This study included 212 myopic eyes undergoing LASIK using a VisuMax 500kHz FS laser. All treated eyes were assigned to one of two groups according to preoperative manifest spherical refraction: low myopia group (A, >-4.0 D) and high myopia group (B, ≤-4.0 D). Uncorrected and corrected distance visual acuity (UDVA, CDVA), refractive errors, and higher-order aberrations (HOAs) were measured preoperatively and 1wk, 1, 3 and 6mo postoperatively. RESULTS At 6mo of follow-up, 92% and 76% had a UDVA of 20/20 or better in group A and B, respectively (P=0.037) and UDVA was significantly different between two groups (P=0.042). Six and seven percentage lost one line of CDVA in group A and B, respectively (P=0.572) and no eyes in both groups lost more than two lines. Each group had 87% and 76% of treated eyes within ±0.5 D of the intended correction (P=0.186), and 13% and 43% with a change of >0.50 D in spherical equivalent from 1wk to 6mo postoperatively (P=0.005). In terms of postoperative astigmatism, each group had 89.1% and 76.6% within ±0.50 D, respectively and there was significant difference (P=0.006). Group A tends to induce smaller HOAs than group B. CONCLUSION FS LASIK is effective and safe for correcting high myopia as well as low myopia. However, high myopic eyes showed more postoperative astigmatism and HOAs which affect visual acuity.
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Affiliation(s)
- Su Hwan Park
- Department of Ophthalmology, School of Medicine, Pusan National University, Yangsan 50612, Gyeongnam Province, Republic of Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Gyeongnam Province, Republic of Korea
| | - Cheng-Ye Che
- Department of Ophthalmology, the Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, Shandong Province, China
| | - Sung Il Kim
- Department of Ophthalmology, School of Medicine, Pusan National University, Yangsan 50612, Gyeongnam Province, Republic of Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Gyeongnam Province, Republic of Korea
| | - Choul Yong Park
- Department of Ophthalmology, Dongguk University Ilsan Hospital, Dongguk University College of Medicine, Goyang 10326, Gyeonggi Province, Republic of Korea
| | - Jong Heon Lee
- Busan Medical Center, Busan 47527, Republic of Korea
| | - Young Hee Kim
- BalGunNun Eye Hospital, Busan 47195, Republic of Korea
| | - Ji Won Jung
- BalGunNun Eye Hospital, Busan 47195, Republic of Korea
| | - Jong Soo Lee
- Department of Ophthalmology, School of Medicine, Pusan National University, Yangsan 50612, Gyeongnam Province, Republic of Korea
| | - Ji Eun Lee
- Department of Ophthalmology, School of Medicine, Pusan National University, Yangsan 50612, Gyeongnam Province, Republic of Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan 50612, Gyeongnam Province, Republic of Korea
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Kim SY, Kim NR, Jung JW, Kang SM. Associations between the Munk Score and Tear Film Scan Revealed byCorneal Topography after Dacryocystorhinostomy. J Korean Ophthalmol Soc 2020. [DOI: 10.3341/jkos.2020.61.4.325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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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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Choi SH, Hwang CJ, Cho JH, Lee CS, Kang CN, Jung JW, Ahn HS, Lee DH. The influence of spinopelvic morphologies on sagittal spinal alignment: an analysis of incidence angle of inflection points. Eur Spine J 2020; 29:831-839. [PMID: 32170437 DOI: 10.1007/s00586-020-06329-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 10/21/2019] [Revised: 10/21/2019] [Accepted: 02/01/2020] [Indexed: 11/24/2022]
Abstract
PURPOSE To elucidate whether specific spinopelvic morphologies affect the subsequent spinal sagittal alignments and determine the alignment patterns. METHODS Whole-spine standing radiographs of 244 patients were analyzed. Sagittal alignment parameters were compared according to the three types of pelvic version: anteverted pelvis (AP), neutral pelvis, and retroverted pelvis (RP), grouped per the amount of pelvic tilt (PT) and the ratio of sacral slope to pelvic incidence (PI). Incidence angles of inflection points (IAIPs) were defined as the angle between a line from the center of the femoral heads through the midpoint of the sacral superior endplate and a line perpendicular to each L1, T1 superior endplate, C2 inferior endplate, and the C1 ring, respectively. RESULTS C1 incidence equaled to the geometrical sum from the pelvis to the C1 vertebra; it also equaled the sum of the C1 slope and PT (p < 0.001). Moving from the AP group to the RP group, there were progressive increases in PT, PI, and IAIPs and decreases in LL, and SS/PI (p < 0.001). Negative correlation was observed between the pelvic anteversion and the IAIPs, and a significant positive correlation was observed between the pelvic retroversion and the IAIPs. CONCLUSION IAIPs are novel PI-relevant radiographic parameters reflecting the relationship between the pelvis and the spinal alignment. An anteverted pelvis requires more lumbar lordosis than pelvic incidence and aligns with low IAIPs, and a retroverted pelvis requires less lumbar lordosis than pelvic incidence and aligns with high IAIPs. These slides can be retrieved under Electronic Supplementary Material.
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Affiliation(s)
- Sung Hoon Choi
- Department of Orthopedic surgery, Hanyang University College of Medicine, Seoul, Korea
| | - Chang Ju Hwang
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Jae Hwan Cho
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Choon Sung Lee
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea
| | - Chang-Nam Kang
- Department of Orthopedic surgery, Hanyang University College of Medicine, Seoul, Korea
| | - Ji Won Jung
- Department of Orthopedic surgery, Hanyang University College of Medicine, Seoul, Korea
| | - Hyung Seob Ahn
- Department of Orthopedic surgery, Hanyang University College of Medicine, Seoul, Korea
| | - Dong-Ho Lee
- Department of Orthopedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul, 05505, Korea.
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Kim JW, Chin HS, Jung JW. A Comparison of Nagel Anomaloscope and Farnsworth Munsel 100-hue in Congenital Color Vision Deficiency. J Korean Ophthalmol Soc 2020. [DOI: 10.3341/jkos.2020.61.1.101] [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: 11/23/2022]
Affiliation(s)
- Jong Woo Kim
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
| | - Hee Seung Chin
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
| | - Ji Won Jung
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
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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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Kim J, Kim JY, Seo KY, Kim T, Chin HS, Jung JW. Location and pattern of non-invasive keratographic tear film break-up according to dry eye disease subtypes. Acta Ophthalmol 2019; 97:e1089-e1097. [PMID: 31062499 DOI: 10.1111/aos.14129] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [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: 09/08/2018] [Accepted: 04/10/2019] [Indexed: 11/28/2022]
Abstract
PURPOSE To compare the non-invasive keratographic tear film break-up time (NIKBUT) and the location and pattern of non-invasive keratographic tear film break-up between normal group and each group of three dry eye disease (DED) subtypes. METHODS We enrolled 55 normal subjects and 250 patients with DED, who underwent tear meniscus height and NIKBUT measurements using the Keratograph® 5M. Ocular surface parameter assessments such as the fluorescein tear break-up time, ocular surface staining, Schirmer's test, and lid margin and meibomian gland examinations were performed, and the ocular surface disease index was determined. These parameters, including the proportion of the first tear film break-up location and simultaneous multiple tear film break-up pattern, were compared amongst the normal and DED subtypes. RESULTS Aqueous-deficient dry eye disease (ADDE) and ADDE/meibomian gland dysfunction (MGD) subtypes showed lower NIKBUTs than those of the normal group, whilst NIKBUTs of the MGD subtype did not differ from those of the normal group. The NIKBUTs showed a good diagnostic ability in diagnosing dry eye except MGD only. The occurrence of the first tear film break-up in the central location was significantly higher in both the ADDE and ADDE/MGD subtypes, comprising approximately 40% in both subtypes (p < 0.001). The proportion of a simultaneous multiple tear film break-up pattern was higher in the ADDE and ADDE/MGD subtypes, at 60.9% and 45.5%, respectively (p < 0.001). CONCLUSION The NIKBUTs and the location and pattern of non-invasive tear film break-up were different between normal group and each group of three DED subtypes.
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Affiliation(s)
- Jieun Kim
- Department of Ophthalmology and Inha Vision Science Laboratory Inha University School of Medicine Incheon South Korea
| | - Jung Yong Kim
- Department of Ophthalmology and Inha Vision Science Laboratory Inha University School of Medicine Incheon South Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology Severance Hospital Yonsei University College of Medicine Seoul South Korea
| | - Tae‐im Kim
- Department of Ophthalmology Severance Hospital Yonsei University College of Medicine Seoul South Korea
| | - Hee Seung Chin
- Department of Ophthalmology and Inha Vision Science Laboratory Inha University School of Medicine Incheon South Korea
| | - Ji Won Jung
- Department of Ophthalmology and Inha Vision Science Laboratory Inha University School of Medicine Incheon South Korea
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Abstract
We investigated the clinical efficacy of pinhole soft contact lenses for presbyopia correction. Twenty participants with presbyopia wore pinhole soft contact lenses in the non-dominant eye for 2 weeks. Manifest refraction, Goldmann binocular visual field tests, contrast sensitivity tests, and biomicroscopic examinations were performed along with evaluations of questionnaire responses and the binocular corrected distance visual acuity (CDVA), distance-corrected near visual acuity (DCNVA), distance-corrected intermediate visual acuity (DCIVA), and depth of focus, both before and after 2 weeks of lens wear. DCNVA at 33 and 40 cm and DCIVA at 50 and 70 cm showed significant improvements after pinhole lens wear (P-value: <0.001, <0.001, <0.001, and 0.046, respectively), with no changes in the binocular visual field and binocular CDVA. Contrast sensitivities under photopic and mesopic conditions decreased at some frequencies; however, visual function questionnaire scores significantly improved (all P-values <0.001). These findings suggest that pinhole contact lenses effectively correct presbyopia.
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Affiliation(s)
- Si Yoon Park
- a The Institute of Vision Research, Department of Ophthalmology , Yonsei University College of Medicine , Seoul , Republic of Korea.,b Eyereum Eye Clinic , Seoul , Republic of Korea
| | - Young Joon Choi
- a The Institute of Vision Research, Department of Ophthalmology , Yonsei University College of Medicine , Seoul , Republic of Korea
| | - Ji Won Jung
- c Department of Ophthalmology , Inha University School of Medicine , Incheon , Republic of Korea
| | - Moonjung Choi
- a The Institute of Vision Research, Department of Ophthalmology , Yonsei University College of Medicine , Seoul , Republic of Korea
| | - Eung Kweon Kim
- a The Institute of Vision Research, Department of Ophthalmology , Yonsei University College of Medicine , Seoul , Republic of Korea
| | - Kyoung Yul Seo
- a The Institute of Vision Research, Department of Ophthalmology , Yonsei University College of Medicine , Seoul , Republic of Korea
| | - Tae-Im Kim
- a The Institute of Vision Research, Department of Ophthalmology , Yonsei University College of Medicine , Seoul , Republic of Korea
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Seo KY, Kang SM, Ha DY, Chin HS, Jung JW. Long-term effects of intense pulsed light treatment on the ocular surface in patients with rosacea-associated meibomian gland dysfunction. Cont Lens Anterior Eye 2018; 41:430-435. [PMID: 29958778 DOI: 10.1016/j.clae.2018.06.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [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: 12/28/2017] [Revised: 05/31/2018] [Accepted: 06/09/2018] [Indexed: 11/29/2022]
Abstract
PURPOSE We aimed to determine the long-term effects of intense pulsed light (IPL) treatment in rosacea-associated meibomian gland dysfunction (MGD). METHODS We enrolled 17 rosacea subjects with moderate and severe MGD who underwent four IPL sessions at 3-week intervals and were followed up for 12 months. The subjects underwent clinical examinations at baseline (first IPL) and at 3 (second), 6 (third), 9 (fourth), and 12 weeks, as well as 6 and 12 months, after baseline. Ocular surface parameters, including the Ocular Surface Disease Index (OSDI), tear break-up time (TBUT), staining score, and noninvasive Keratograph tear break-up time (NIKBUT), as well as meibomian gland parameters, including the lid margin vascularity and meibum expressibility and quality, were evaluated. RESULTS All ocular surface and meibomian gland parameters for all subjects exhibited significant changes from baseline to the final examination (Friedman, P < 0.050 for all). In particular, improvements in the lower lid margin vascularity, meibum expressibility and quality, and ocular symptoms persisted up to the final examination (Wilcoxon, P < 0.050 for all). However, the improvements of TBUT, staining score, and NIKBUT after IPL were not maintained at 6 and 12 months after baseline. CONCLUSIONS In rosacea-associated MGD, four IPL treatments at 3-week intervals can improve long-term lid parameters and ocular symptoms without adverse effects.
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Affiliation(s)
- Kyoung Yul Seo
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Sung Mo Kang
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Dae Young Ha
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Hee Seung Chin
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Ji Won Jung
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea.
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Jun I, Jung JW, Choi YJ, Kim TI, Seo KY, Kim EK. Long-term Clinical Outcomes of Phototherapeutic Keratectomy in Corneas With Granular Corneal Dystrophy Type 2 Exacerbated After LASIK. J Refract Surg 2018; 34:132-139. [PMID: 29425392 DOI: 10.3928/1081597x-20171220-01] [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] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 12/08/2017] [Indexed: 11/20/2022]
Abstract
PURPOSE To investigate the long-term clinical outcomes and recurrence patterns of phototherapeutic keratectomy (PTK) in patients with granular corneal dystrophy type 2 (GCD2) exacerbated after LASIK. METHODS Fifty-one patients (76 eyes) with GCD2 exacerbated after LASIK who underwent PTK between January 2007 and February 2017 were included. Participants underwent ophthalmic examination, including slit-lamp microscopy, corrected distance visual acuity (CDVA), slit-lamp photography, and Fourier domain optical coherence tomography at preoperative and postoperative visits. PTK was performed using VISX S4 IR (VISX, Inc., Santa Clara, CA). Visual acuity, complications, interval, and contributing factors of recurrence were evaluated. RESULTS The follow-up period ranged from 1 to 108 months (mean: 35.22 months). The mean logMAR CDVA was 0.55 ± 0.43 (Snellen equivalent 20/80) preoperatively and 0.09 ± 0.43 (Snellen equivalent 20/25) at 3 months postoperatively. Forty-five (61.6%) eyes developed biomicroscopic recurrence at a mean of 18.6 months after PTK; 20 (27.4%) eyes developed significant recurrence at a mean of 31.3 months after PTK. The flap removal group demonstrated better CDVA at 3 years after surgery and lower recurrence and complication rates than the flap conservation group. Multivariate analysis revealed that flap removal remarkably reduced the risk of both any sign of and significant recurrence. CONCLUSIONS PTK improved corneal transparency and visual acuity in patients with GCD2 exacerbated after LASIK, although GCD2 eventually recurred. PTK with flap removal was superior to PTK with flap conservation in terms of visual acuity, recurrence, and complications. [J Refract Surg. 2018;34(2):132-139.].
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Kim JW, Jung JW. Clinical Evaluation of a Rebound Tonometer in Patients Who Underwent Penetrating Keratoplasty. J Korean Ophthalmol Soc 2018. [DOI: 10.3341/jkos.2018.59.12.1122] [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: 11/23/2022]
Affiliation(s)
- Jong Woo Kim
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
| | - Ji Won Jung
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
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Jung JW, Kim JY, Chin HS, Suh YJ, Kim TI, Seo KY. Assessment of meibomian glands and tear film in post-refractive surgery patients. Clin Exp Ophthalmol 2017; 45:857-866. [PMID: 28544605 DOI: 10.1111/ceo.12993] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [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: 03/18/2017] [Revised: 05/15/2017] [Accepted: 05/17/2017] [Indexed: 11/26/2022]
Abstract
IMPORTANCE Corneal refractive surgery may impact meibomian gland and tear film in post-refractive surgery patients. BACKGROUND To compare ocular surface parameters between post-refractive surgery patients and normal controls. DESIGN Cross-sectional single centre study. PARTICIPANTS A total of 120 eyes of 120 subjects were divided into three groups: (i) 60 controls and 60 patients underwent corneal refractive surgery at least 12 months ago; (ii) 30 post-laser in-situ keratomileusis (LASIK) patients and (iii) 30 post-laser epithelial keratomileusis (LASEK)/photo-refractive keratectomy (PRK) patients. METHODS Tear meniscus height, non-invasive keratographic tear film break-up time and meibography were measured using the Keratograph® 5M. Fluorescein break-up time, ocular surface staining, examination of lid margins and meibomian glands, Schirmer's test and Ocular Surface Disease Index questionnaire were performed. MAIN OUTCOME MEASURES Ordinary logistic regression was performed to evaluate the impact of clinical variables including refractive surgery on the meiboscores. RESULTS In post-LASIK patients, ocular surface parameters including Ocular Surface Disease Index scores, fluorescein break-up time and staining scores, except Schirmer's scores, were significantly worse than those in controls (P < 0.050). Ocular surface staining scores in post-LASEK/PRK patients was higher than that in the controls (P = 0.001). In post-refractive surgery patients, grade of meibomian gland parameters and meiboscores were worse than those of controls (all P < 0.050). Histories of refractive surgery were associated with high meiboscore (β = 1.100, P = 0.043 for LASIK and β = 1.039, P = 0.042 for LASEK/PRK). CONCLUSIONS AND RELEVANCE Corneal refractive surgery may adversely affect the ocular surface, and a reduction of functional meibomian glands can contribute to chronic tear film dysfunction after corneal refractive surgery.
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Affiliation(s)
- Ji Won Jung
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Jung Yong Kim
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Hee Seung Chin
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Young Ju Suh
- Department of Clinical Research, Inha University School of Medicine, Incheon, South Korea
| | - Tae-Im Kim
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
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Jung JW, Park SY, Kim JS, Kim EK, Seo KY, Kim TI. Analysis of Factors Associated With the Tear Film Lipid Layer Thickness in Normal Eyes and Patients With Dry Eye Syndrome. Invest Ophthalmol Vis Sci 2017; 57:4076-83. [PMID: 27537256 DOI: 10.1167/iovs.16-19251] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To determine the effects of clinical variables, including age, sex, history of refractive or cataract surgery, contact lens use, and ocular surface and meibomian gland parameters on the lipid layer thickness (LLT) in normal subjects and patients with dry eye syndrome (DES). METHODS A total of 64 normal subjects and 326 patients with DES were enrolled, and they underwent measurements of LLT with a LipiView interferometer and tear meniscus height using optical coherence tomography, tear film break-up time (TBUT) determination, ocular surface staining, Schirmer's test, examination of the lid margins and meibomian glands, and assessment using the Ocular Surface Disease Index (OSDI). RESULTS In normal subjects, the median (range) LLT was 67 (33-100) nm, and age was the only factor that was significantly associated with LLT (β = 0.678, P = 0.028). In patients with DES, the median (range) LLT was 84 (20-100) nm, and 79.0% of the participants fulfilled the diagnostic criteria for meibomian gland dysfunction (MGD). In a multivariate analysis, increased age and female sex were significantly related to increased LLT (β = 0.282, P = 0.005 and β = 11.493, P < 0.001), and hypersecretory MGD and lid margin inflammation were independently associated with increased LLT (β = 11.299, P = 0.001 and β = 12.747, P = 0.001). CONCLUSIONS Lipid layer thickness measurements using a new interferometer are significantly affected by demographic factors such as age, sex, ocular surgical history, and MGD type. Therefore, all of these factors must be considered in the diagnosis of ocular surface diseases.
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Affiliation(s)
- Ji Won Jung
- The Institute of Vision Research Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea 2Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Si Yoon Park
- The Institute of Vision Research Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
| | - Jin Sun Kim
- The Institute of Vision Research Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
| | - Eung Kweon Kim
- The Institute of Vision Research Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyoung Yul Seo
- The Institute of Vision Research Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae-Im Kim
- The Institute of Vision Research Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
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Ha DY, Jung JW. Comparison of Anterior Segment Parameters Obtained by Anterior Segment Optical Coherence Tomography and Dual Rotating Scheimpflug Camera. J Korean Ophthalmol Soc 2017. [DOI: 10.3341/jkos.2017.58.12.1341] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Dae Young Ha
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
| | - Ji Won Jung
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
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Affiliation(s)
- Kang Won Lee
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, Korea
| | - Ji Won Jung
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, Korea
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Jung JW, Han SH, Kim SA, Kim EK, Seo KY, Kim TI. Evaluation of pigment location in tinted soft contact lenses. Cont Lens Anterior Eye 2016; 39:210-6. [DOI: 10.1016/j.clae.2016.01.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2015] [Revised: 11/18/2015] [Accepted: 01/20/2016] [Indexed: 11/26/2022]
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Jung JW, Han SJ, Nam SM, Kim TI, Kim EK, Seo KY. Meibomian gland dysfunction and tear cytokines after cataract surgery according to preoperative meibomian gland status. Clin Exp Ophthalmol 2016; 44:555-562. [PMID: 26989003 DOI: 10.1111/ceo.12744] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Revised: 02/19/2016] [Accepted: 02/26/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND To investigate the possible mechanisms by which cataract surgery aggravates meibomian gland dysfunction (MGD), we evaluated the changes in tear cytokines and ocular surface parameters after cataract surgery according to the preoperative MGD grade. DESIGN Prospective, observational case series. PARTICIPANTS A total of 50 eyes from 50 patients who underwent cataract surgery were included. METHODS Patients were classified into two groups: Group I had no or minimal MGD, and group II had grades 2-4 MGD. Ocular surface parameters were measured, including tear film break-up time, Schirmer I test, ocular surface staining and Ocular Surface Disease Index, and tear cytokine levels were measured. MAIN OUTCOME MEASURES The main outcomes were changes in ocular surface parameters and inflammatory tear cytokine concentrations. RESULTS In group II, preoperative MGD grade, ocular surface staining, tear film break-up time and Ocular Surface Disease Index were worse, and mean interleukin (IL)-2, IL-6 and TNF-α levels were higher than those of group I. MGD and ocular surface parameters were worsened to a greater degree after surgery in group II than in group I (P < 0.050). In group II, IL-6 and TNF-α levels significantly increased at postoperative 1 month, and there were significant correlations between changes in ocular surface parameters and tear cytokines (IL-2, IL-6 and TNF-α; P < 0.050). CONCLUSIONS The extent to which the MGD grade was aggravated following cataract surgery differed based on preoperative MGD grade. Preoperative MGD and ocular surface status should be carefully evaluated.
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Affiliation(s)
- Ji Won Jung
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.,Department of Ophthalmology, Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Soo Jung Han
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Sang Min Nam
- Department of Ophthalmology, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Tae-Im Kim
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Eung Kweon Kim
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.,Institute of Vision Research, Severance Biomedical Science Institute, Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.
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Kim KY, Jung JW, Kim EK, Seo KY, Kim TI. Tectonic Lamellar Keratoplasty Using Cryopreserved Cornea in a Large Descemetocele. Yonsei Med J 2016; 57:269-71. [PMID: 26632412 PMCID: PMC4696965 DOI: 10.3349/ymj.2016.57.1.269] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 12/19/2014] [Accepted: 12/22/2014] [Indexed: 11/27/2022] Open
Abstract
We describe herein a case of an impending corneal perforation with a large descemetocele in a patient with previous penetrating keratoplasty (PKP) that subsequently was treated with an emergent lamellar keratoplasty using frozen preserved cornea. A 76-year-old male patient, who had a PKP, presented with a completely whitish and edematous graft accompanied by large epithelial defects. Although antibiotics and antiviral agents were tried for three days, the corneal stroma abruptly melted, except for the Descemet's membrane and endothelium. Cryopreserved corneal tissue that was kept at -80°C was thawed and sutured on top of the remaining Descemet's membrane and endothelium. Pathological and microbiological tests were conducted using the remaining donor and recipient corneal tissues. After tectonic corneal transplantation on top of a large descemetocele, a healthy graft and relatively clear interfaces between graft-host junctions were maintained without serious adverse reactions throughout 6 month follow-up period. Microbiological evaluations of donor tissue at the time of thawing and tissue preparation were done, and the results were all negative. Tissue that was taken intraoperatively from the recipient cornea also showed negative microbiological results. In conclusion, tectonic lamellar keratoplasty, using cryopreserved corneal tissue, only onto the remaining Descemet's membrane and endothelium in an emergent condition, was a safe and effective treatment.
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Affiliation(s)
- Kang Yoon Kim
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Won Jung
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Eung Kweon Kim
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
- Corneal Dystrophy Research Institute, Severance Biomedical Science Institute, and Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Tae Im Kim
- Department of Ophthalmology, The Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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Affiliation(s)
- Kang Won Lee
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
| | - Ji Won Jung
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
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Ha DY, Lee KW, Jung JW. Comparison of Ocular Biometry Measurements Using A-Scan Ultrasound and Two Types of Partial Coherence Interferometers. J Korean Ophthalmol Soc 2016. [DOI: 10.3341/jkos.2016.57.5.757] [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: 11/23/2022]
Affiliation(s)
- Dae Young Ha
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
| | - Kang Won Lee
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
| | - Ji Won Jung
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
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Kim DJ, Roh E, Lee MH, Oi N, Lim DY, Kim MO, Cho YY, Pugliese A, Shim JH, Chen H, Cho EJ, Kim JE, Kang SC, Paul S, Kang HE, Jung JW, Lee SY, Kim SH, Reddy K, Yeom YI, Bode AM, Dong Z. Herbacetin Is a Novel Allosteric Inhibitor of Ornithine Decarboxylase with Antitumor Activity. Cancer Res 2015; 76:1146-1157. [PMID: 26676750 DOI: 10.1158/0008-5472.can-15-0442] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2015] [Accepted: 10/28/2015] [Indexed: 11/16/2022]
Abstract
Ornithine decarboxylase (ODC) is a rate-limiting enzyme in the first step of polyamine biosynthesis that is associated with cell growth and tumor formation. Existing catalytic inhibitors of ODC have lacked efficacy in clinical testing or displayed unacceptable toxicity. In this study, we report the identification of an effective and nontoxic allosteric inhibitor of ODC. Using computer docking simulation and an in vitro ODC enzyme assay, we identified herbacetin, a natural compound found in flax and other plants, as a novel ODC inhibitor. Mechanistic investigations defined aspartate 44 in ODC as critical for binding. Herbacetin exhibited potent anticancer activity in colon cancer cell lines expressing high levels of ODC. Intraperitoneal or oral administration of herbacetin effectively suppressed HCT116 xenograft tumor growth and also reduced the number and size of polyps in a mouse model of APC-driven colon cancer (ApcMin/+). Unlike the well-established ODC inhibitor DFMO, herbacetin treatment was not associated with hearing loss. Taken together, our findings defined the natural product herbacetin as an allosteric inhibitor of ODC with chemopreventive and antitumor activity in preclinical models of colon cancer, prompting its further investigation in clinical trials.
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Affiliation(s)
- Dong Joon Kim
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA.,Biomedical Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Daejeon, 305-806, Korea
| | - Eunmiri Roh
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Mee-Hyun Lee
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA.,China-US Hormel Institute, Henan, 45008, China
| | - Naomi Oi
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Do Young Lim
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Myoung Ok Kim
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA.,Center for Laboratory Animal Resources, School of Animal Biotechnology, Kyungpook National University, Dae-gu, 700-842, Republic of Korea
| | - Young-Yeon Cho
- Department of Pharmacology, College of Pharmacy, The Catholic University of Korea, Bucheon 420-743, Republic of Korea
| | - Angelo Pugliese
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Jung-Hyun Shim
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA.,College of Pharmacy, Mokpo National University, Muan-gun, Jeonnam 534-729, Republic of Korea
| | - Hanyong Chen
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Eun Jin Cho
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Jong-Eun Kim
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Kyoungsan, Kyoungbook 712-714, Republic of Korea
| | - Souren Paul
- Department of Biotechnology, Daegu University, Kyoungsan, Kyoungbook 712-714, Republic of Korea
| | - Hee Eun Kang
- Department of Pharmacology, College of Pharmacy, The Catholic University of Korea, Bucheon 420-743, Republic of Korea
| | - Ji Won Jung
- Department of Pharmacology, College of Pharmacy, The Catholic University of Korea, Bucheon 420-743, Republic of Korea
| | - Sung-Young Lee
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Sung-Hyun Kim
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA.,Center for Laboratory Animal Resources, School of Animal Biotechnology, Kyungpook National University, Dae-gu, 700-842, Republic of Korea
| | - Kanamata Reddy
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Young Il Yeom
- Biomedical Genomics Research Center, Korea Research Institute of Bioscience & Biotechnology (KRIBB), Daejeon, 305-806, Korea
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Zigang Dong
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
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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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Jung JW, Chung BH, Kim EK, Seo KY, Kim TI. The Effects of Two Non-Steroidal Anti-Inflammatory Drugs, Bromfenac 0.1% and Ketorolac 0.45%, on Cataract Surgery. Yonsei Med J 2015; 56:1671-7. [PMID: 26446653 PMCID: PMC4630059 DOI: 10.3349/ymj.2015.56.6.1671] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 12/21/2014] [Accepted: 12/23/2014] [Indexed: 11/27/2022] Open
Abstract
PURPOSE To compare the additive effects of two types of non-steroidal anti-inflammatory drugs (NSAIDs), bromfenac 0.1% or ketorolac 0.45%, relative to topical steroid alone in cataract surgery. MATERIALS AND METHODS A total 91 subjects scheduled to undergo cataract operation were randomized into three groups: Group 1, pre/postoperative bromfenac 0.1%; Group 2, pre/postoperative preservative-free ketorolac 0.45%; and Group 3, postoperative steroid only, as a control. Outcome measures included intraoperative change in pupil size, postoperative anterior chamber inflammation control, change in macular thickness and volume, and ocular surface status after operation. RESULTS Both NSAID groups had smaller intraoperative pupil diameter changes compared to the control group (p<0.05). There was significantly less ocular inflammation 1 week and 1 month postoperatively in both NSAID groups than the control group. The changes in central foveal subfield thickness measured before the operation and at postoperative 1 month were 4.30±4.25, 4.87±6.03, and 12.47±12.24 μm in groups 1 to 3, respectively. In the control group, macular thickness and volume increased more in patients with diabetes mellitus (DM), compared to those without DM. In contrast, in both NSAID groups, NSAIDs significantly reduced macular changes in subgroups of patients with or without DM. Although three ocular surface parameters were worse in group 1 than in group 2, these differences were not significant. CONCLUSION Adding preoperative and postoperative bromfenac 0.1% or ketorolac 0.45% to topical steroid can reduce intraoperative miosis, postoperative inflammation, and macular changes more effectively than postoperative steroid alone.
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Affiliation(s)
- Ji Won Jung
- Department of Ophthalmology, Severance Hospital, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, Korea
| | - Byung Hoon Chung
- Department of Ophthalmology, Severance Hospital, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Eung Kweon Kim
- Department of Ophthalmology, Severance Hospital, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Institute of Vision Research, Severance Biomedical Science Institute, Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, Severance Hospital, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Tae-im Kim
- Department of Ophthalmology, Severance Hospital, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea.
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Kim JS, Jung JW, Lee JM, Seo KY, Kim EK, Kim TI. Clinical Outcomes Following Implantation of Diffractive Multifocal Intraocular Lenses With Varying Add Powers. Am J Ophthalmol 2015. [PMID: 26209232 DOI: 10.1016/j.ajo.2015.07.021] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE To compare clinical outcomes after implantation of TECNIS diffractive multifocal intraocular lenses (IOLs) with different add powers. DESIGN Prospective, comparative, interventional case series. METHODS Subjects underwent cataract extraction and diffractive multifocal IOL implant. Subjects had an additional add power of +2.75 diopters (D) (Group 1, 23 eyes), +3.25 D (Group 2, 21 eyes), or +4.00 D (Group 3, 21 eyes). Evaluations were performed 1 and 3 months following cataract surgery, including measurement of monocular uncorrected distance visual acuity (UDVA), refractive error (manifest refraction [MR]), and monocular uncorrected near visual acuity (UNVA) at 33, 40, and 50 cm. At 3 months, internal aberrations and contrast sensitivity were evaluated and subjects completed a questionnaire on outcomes satisfaction, visual symptoms, and spectacle use. RESULTS Sixty-five eyes (43 subjects) were included. After surgery, no significant differences between groups were observed in UDVA and MR values. UNVA at 33 cm was best in Group 3 (1 month: P = .032; 3 months: P = .031). Three months after surgery, UNVA was best in Group 1 at 50 cm (P = .017). No significant differences in internal aberration and contrast sensitivity were observed between groups and surgical satisfaction was worst in Group 3 (P = .001). A total of 87.0%, 85.7%, and 76.9% had spectacle independence in Groups 1, 2, and 3, respectively (P = .080). CONCLUSIONS TECNIS diffractive multifocal IOLs with lower add powers provide good vision over longer working distances and excellent distant vision. Subjects with lower add power had greater satisfaction, more spectacle independence, and fewer visual symptoms than those with +4.00 D add.
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Jung JW, Kim SM, Han SH, Kim EK, Seo KY, Kim TI. Effect of the pigment-free optical zone diameter of decorative tinted soft contact lenses on visual function. Br J Ophthalmol 2015; 100:633-7. [PMID: 26377415 DOI: 10.1136/bjophthalmol-2015-306731] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 08/04/2015] [Indexed: 11/04/2022]
Abstract
AIMS We investigated changes in visual function after wearing decorative tinted soft contact lenses with different pigment-free optical zone diameters. METHODS A prospective study was performed in 30 eyes of 30 healthy volunteers. Best-corrected visual acuity (BCVA), ocular higher-order aberrations (HOAs), modulation transfer function (MTF), Strehl ratio and contrast sensitivity were evaluated after wearing clear lens and tinted lenses with different pigment-free optical zone diameters (4, 5 and 6 mm). RESULTS BCVA decreased from 0.00 logMAR after wearing a clear lens to 0.04±0.04 logMAR after wearing 4 mm optical zone lens (p<0.001). As the optical zone diameter decreased, ocular aberrations were induced. Total HOAs, coma aberration and secondary astigmatism showed significant difference between clear lens and 5 or 4 mm optical zone lenses (p<0.050). Spherical aberration and trefoil showed significant difference between clear lens and 4 mm optical zone lens (p<0.050). The results for Strehl ratio revealed poorer optical quality for both 5 and 4 mm optical zone lens (both p=0.002). The entire ocular MTF was significantly different, corresponding to the decreased optical zone diameter. The HOAs showed a correlation with the blocked pupil covered by the tinted part (r=0.435, p<0.001). In photopic and mesopic conditions, the contrast sensitivity decreased significantly with the reduced pigment-free optical zone diameters. CONCLUSION Decorative tinted contact lenses significantly increased ocular aberrations and decreased optical quality and contrast sensitivity, as the pigment-free optical zone diameter decreased. Therefore, consumers of tinted lenses should be informed about the possible disturbance in visual function. TRIAL REGISTRATION NUMBER NCT02537275.
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Affiliation(s)
- Ji Won Jung
- Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Sang Myung Kim
- Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Sun Hyup Han
- Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Eung Kweon Kim
- Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea Corneal Dystrophy Research Institute, Severance Biomedical Science Institute, and Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae-Im Kim
- Department of Ophthalmology, The Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
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Jung JW, Han SJ, Song MK, Kim TI, Kim EK, Min YH, Cheong JW, Seo KY. Tear Cytokines as Biomarkers for Chronic Graft-versus-Host Disease. Biol Blood Marrow Transplant 2015; 21:2079-2085. [PMID: 26303101 DOI: 10.1016/j.bbmt.2015.08.020] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 08/14/2015] [Indexed: 01/11/2023]
Abstract
We investigated the tear cytokine profiles in patients who underwent stem cell transplantation (SCT) and attempted to evaluate whether tear cytokines are associated with the presence of systemic chronic graft-versus-host disease (GVHD), regardless of ocular GVHD status. We also tested tear cytokines as biomarkers for chronic ocular GVHD severity. Forty-four patients who underwent SCT were enrolled and their diagnosis of chronic GVHD was confirmed. Ocular surface parameters and tear cytokine profiles were evaluated and the correlations between concentrations of cytokines and ocular surface parameters or several chronic ocular GVHD severity scales were evaluated. Tear interleukin (IL)-2, IL-10, IL-17α, interferon (IFN)-γ, IL-6, and tumor necrosis factor (TNF)-α were elevated in patients with chronic systemic GVHD compared with patients without chronic systemic GVHD. Receiver-operating characteristic curve analysis revealed that area under the curve (AUC) values for tear IL-10 (AUC = .795), IL-17α (AUC = .821), IL-6 (AUC = .912), and TNF-α (AUC = .910) were significantly correlated with the presence of chronic GVHD (all P < .001). Tear IL-10, IL-6, and TNF-α showed a stronger correlation with ocular surface parameters than other cytokines and these cytokines also correlated with several chronic ocular GVHD severity scales (all P < .05). Our data suggest the tear cytokines are useful biomarkers for the diagnosis of chronic GVHD after SCT and chronic ocular GVHD severity.
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Affiliation(s)
- Ji Won Jung
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea; Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, South Korea
| | - Soo Jung Han
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Mi Kyung Song
- Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, South Korea
| | - Tae-Im Kim
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - Eung Kweon Kim
- Department of Ophthalmology, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, South Korea/Institute of Vision Research, Severance Biomedical Science Institute, Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Yoo Hong Min
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - June-Won Cheong
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, South Korea
| | - Kyoung Yul Seo
- Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea.
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Jung JW, Chung BH, Han SH, Kim EK, Seo KY, Kim TI. Comparison of Measurements and Clinical Outcomes After Wavefront-Guided LASEK Between iDesign and WaveScan. J Refract Surg 2015; 31:398-405. [PMID: 26046707 DOI: 10.3928/1081597x-20150521-06] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Accepted: 04/15/2015] [Indexed: 11/20/2022]
Abstract
PURPOSE To compare the measurements of refractive errors and ocular aberrations obtained using iDesign and WaveScan (Abbott Medical Optics, Inc., Santa Ana, CA), and to compare surgical outcomes of wavefront-guided LASEK using ablation profiles based on both aberrometers. METHODS Ninety myopic eyes of 45 normal patients were evaluated using both the iDesign and WaveScan to measure spherical and cylindrical errors, spherical equivalents, and Zernike coefficients of ocular aberrations. Wavefront-guided LASEK was performed in a different group of 59 eyes of 30 patients divided into two groups, the iDesign and Wavescan groups. The clinical outcomes between the two groups including uncorrected visual acuity, refractive errors, contrast sensitivity, and ocular aberration were compared at 1, 3, and 6 months postoperatively. RESULTS The iDesign produced significantly higher myopic values for refractive errors than the WaveScan, as well as significantly lower levels of total higher order, third, fourth, and fifth order root mean square values and Zernike coefficients of vertical coma and spherical aberration. At postoperative 1, 3, and 6 months, there were no statistically significant differences between the two groups in terms of uncorrected visual acuity and remaining refractive errors. The percentages of patients with spherical equivalents within ±1.00 and ±0.50 diopters of emmetropia were 100% (29 eyes) and 75.9% (22 eyes), respectively, in the iDesign group and 96.7% (29 eyes) and 70.0% (21 eyes), respectively, in the WaveScan group. Mesopic contrast sensitivity values were significantly higher, and the change in root mean square values for spherical aberration was significantly lower in the iDesign group. CONCLUSIONS There were significant differences between the iDesign and the WaveScan in the measurements of refraction and ocular aberrations. Wavefront-guided LASEK based on an ablation profile from the iDesign demonstrated comparable refractive predictability with the WaveScan group, resulting in minimal physician adjustment and superior postoperative visual quality.
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Jung JW, Kim SA, Kang EM, Kim TI, Cho HS, Kim EK. Lattice corneal dystrophy type IIIA with hyaline component from a novel A620P mutation and distinct surgical treatments. Cornea 2015; 33:1324-31. [PMID: 25321938 DOI: 10.1097/ico.0000000000000281] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE The aim of this study was to report a lattice corneal dystrophy (LCD) family with a novel mutation of A620P in the TGFBI gene, its long-term treatment, follow-up data, and related pathologic findings. METHODS A total of 28 family members were clinically examined, and blood samples or buccal epithelial cells were taken for DNA analysis. All exons from the entire TGFBI gene coding region were analyzed for mutations in 3 affected members. Exon 14 was amplified in other family members and in 100 normal Korean persons as control. Corneal tissues from 1 affected family member were examined using light and electron microscopy. RESULTS Clinical examination revealed relatively late-onset LCD with asymmetric progression and recurrent corneal erosion. The affected family members have been treated with penetrating keratoplasty, deep lamellar keratoplasty, and phototherapeutic keratectomy for up to 19 years. Screening of the TGFBI gene revealed a novel A620P mutation, which was found in all affected members. The amyloid origin of deposits was confirmed by Congo red and was also partially stained with Masson trichrome. Although there were no electron-dense bodies as in granular dystrophy, transmission electron microscopy demonstrated that the stromal deposits were not homogenous and contained a variety of constituents with different electron densities. CONCLUSIONS We present the characteristics and surgical treatment of corneas with a novel A620P mutation in TGFBI showing LCD type IIIA with hyaline component.
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Affiliation(s)
- Ji Won Jung
- *Department of Ophthalmology, Severance Hospital, Corneal Dystrophy Research Institute, Yonsei University College of Medicine, Seoul, Korea; †Department of Systems Biology, Yonsei University College of Life Science and Biotechnology, Seoul, Korea; and ‡Institute of Vision Research, Severance Biomedical Science Institute, Brain Korea 21 Plus Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
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Jung JW, Lee YJ, Yoon SC, Kim TI, Kim EK, Seo KY. Long-term result of maintenance treatment with tacrolimus ointment in chronic ocular graft-versus-host disease. Am J Ophthalmol 2015; 159:519-27.e1. [PMID: 25498356 DOI: 10.1016/j.ajo.2014.11.035] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2014] [Revised: 11/26/2014] [Accepted: 11/26/2014] [Indexed: 02/06/2023]
Abstract
PURPOSE To investigate the efficacy and safety of long-term maintenance treatment with tacrolimus ointment in chronic ocular graft-vs-host disease (GVHD) with ocular surface inflammation. DESIGN A retrospective interventional consecutive case series. METHOD Long-term maintenance treatment (≥6 months) with topical 0.02% tacrolimus ointment was applied to patients with chronic ocular GVHD with ocular surface inflammation (at least grade 2 inflammatory score). We evaluated the inflammatory score, steroid score and steroid use period of total duration, and numbers of inflammatory aggravations before and after tacrolimus treatment. The clinical outcomes were assessed by symptom score, ocular surface staining, Schirmer I test, tear break-up time (TBUT), and classification of chronic GVHD conjunctivitis at the initial and final examinations. RESULTS Thirteen patients (24 eyes) were treated with tacrolimus ointment for up to 20 months (average 12.2 months). The ocular surface inflammatory score decreased from 2.8 to 0.6 (P = .001) within 2-8 weeks after starting tacrolimus ointment treatment. The numbers of inflammatory aggravation and the need for steroid treatment also decreased after initiating tacrolimus treatment. At the final follow-up, all patients reported improvement in clinical outcomes, compared to initial findings. Except for blurred vision or mild burning sensation, there were no reported side effects. CONCLUSION Considering the chronic course of GVHD, long-term maintenance treatment with tacrolimus ointment could be useful and safe to locally treat ocular surface inflammation in chronic ocular GVHD.
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Kim SA, Jung JW, Seo KY, Lee HK, Kim EK, Kim TI. Comparison and Investigation of the National Standards for Tinted Contact Lenses between Various Countries. J Korean Ophthalmol Soc 2015. [DOI: 10.3341/jkos.2015.56.11.1692] [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: 11/23/2022]
Affiliation(s)
- Sang Ah Kim
- The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Won Jung
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
| | - Kyoung Yul Seo
- The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea
| | - Hyung Keun Lee
- The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea
| | - Eung Kweon Kim
- The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea
| | - Tae Im Kim
- The Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, Korea
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