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Lee SM, Lee JW, Lee JE, Choi HY, Lee JS, Byon I. Efficacy of inverted inner limiting membrane flap technique for macular holes of ≤400 μm: A systematic review and meta-analysis. PLoS One 2024; 19:e0302481. [PMID: 38683767 PMCID: PMC11057726 DOI: 10.1371/journal.pone.0302481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 03/26/2024] [Indexed: 05/02/2024] Open
Abstract
PURPOSE To evaluate the efficacy of inverted internal limiting membrane (ILM) flap technique in full-thickness macular holes (MHs) with a size of ≤400 μm compared to the ILM peeling technique. METHODS Related literatures that compared inverted ILM flap and ILM peeling in MHs ≤ 400 μm were reviewed by searching electronic databases including Pubmed, EMbase, ClinicalTrials.gov, and Cochrane Library up to April 2023. The primary outcome measure was hole closure rate, and the secondary outcome measures were the mean postoperative best-corrected visual acuity (BCVA), retinal sensitivity, and outer status of the retinal layers, including the external limiting membrane and ellipsoid zone. The quality of the articles was assessed according to the revised version of the Cochrane risk-of-bias tool for randomized trials or the Newcastle-Ottawa scale. In the case of heterogeneity, a sensitivity analysis was conducted, and publication bias was visually evaluated using a funnel plot. RESULTS This review included six studies with 610 eyes for the primary outcome and 385 eyes for the secondary outcomes, which were two randomized control trials and four retrospective studies. Pooled data revealed that the overall MH closure rate was 99.4% in the inverted ILM flap group and 96.2% in the ILM peeling group, without significant difference between the two groups (odds ratio = 3.91; 95% confidence interval, 0.82~18.69; P = 0.09). The inverted ILM flap technique did not have a favorable effect on the BCVA, retinal sensitivity, or recovery of the outer retinal layers. These results were consistent with those of the subgroup analysis of the different follow-up periods. No significant publication bias was observed. CONCLUSION In eyes with MHs of ≤400 μm, both techniques demonstrated excellent surgical outcomes without significant differences. Therefore, surgical techniques can be selected according to surgeon preferences.
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Affiliation(s)
- Seung Min Lee
- Department of Ophthalmology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea
- Pusan National University School of Medicine, Yangsan, South Korea
| | - Ji Woong Lee
- Pusan National University School of Medicine, Yangsan, South Korea
- Department of Ophthalmology, Medical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Ji Eun Lee
- Department of Ophthalmology, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea
- Pusan National University School of Medicine, Yangsan, South Korea
| | - Hee-young Choi
- Pusan National University School of Medicine, Yangsan, South Korea
- Department of Ophthalmology, Medical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Jong Soo Lee
- Pusan National University School of Medicine, Yangsan, South Korea
- Department of Ophthalmology, Medical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Iksoo Byon
- Pusan National University School of Medicine, Yangsan, South Korea
- Department of Ophthalmology, Medical Research Institute, Pusan National University Hospital, Busan, South Korea
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Jung H, Choi HY, Hwangbo L, Park J. Successful Treatment of Orbital Lymphatic Malformation Using Foam Sclerotherapy with 3% Sodium Tetradecyl Sulfate: A Case Report. Korean J Ophthalmol 2024; 38:167-169. [PMID: 38351483 PMCID: PMC11016678 DOI: 10.3341/kjo.2023.0125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/30/2023] [Accepted: 01/13/2024] [Indexed: 04/16/2024] Open
Affiliation(s)
- Hayun Jung
- Department of Ophthalmology, Pusan National University Hospital, Pusan National University School of Medicine, Busan,
Korea
| | - Hee-young Choi
- Department of Ophthalmology, Pusan National University Hospital, Pusan National University School of Medicine, Busan,
Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan,
Korea
| | - Lee Hwangbo
- Biomedical Research Institute, Pusan National University Hospital, Busan,
Korea
- Department of Radiology, Pusan National University Hospital, Pusan National University School of Medicine, Busan,
Korea
| | - Jungyul Park
- Department of Ophthalmology, Pusan National University Hospital, Pusan National University School of Medicine, Busan,
Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan,
Korea
- Department of Ophthalmology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul,
Korea
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Joe Y, Choi HY, Park J. Utilization of Cavitron Ultrasonic Surgical Aspirator in the Removal of Extensive Orbital Cavernous Venous Malformation: A Case Report. Korean J Ophthalmol 2024; 38:170-172. [PMID: 38351486 PMCID: PMC11016689 DOI: 10.3341/kjo.2024.0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 01/08/2024] [Accepted: 01/19/2024] [Indexed: 04/16/2024] Open
Affiliation(s)
- Yoonsoo Joe
- Department of Ophthalmology, Pusan National University Hospital, Pusan National University School of Medicine, Busan,
Korea
| | - Hee-young Choi
- Department of Ophthalmology, Pusan National University Hospital, Pusan National University School of Medicine, Busan,
Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan,
Korea
| | - Jungyul Park
- Department of Ophthalmology, Pusan National University Hospital, Pusan National University School of Medicine, Busan,
Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan,
Korea
- Department of Ophthalmology, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul,
Korea
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Heo J, Choi HY, Park J. Successful Management of Refractory Kimura Disease with CVP Chemotherapy: A Case Report. Am J Case Rep 2024; 25:e942753. [PMID: 38282341 PMCID: PMC10838562 DOI: 10.12659/ajcr.942753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/21/2023] [Accepted: 12/13/2023] [Indexed: 01/30/2024]
Abstract
BACKGROUND Kimura disease is a rare, chronic inflammatory disorder typically presenting as a painless mass in the head or neck and associated with elevated serum immunoglobulin E and blood and tissue eosinophilia. Generally benign, its management is not well-defined, but corticosteroids are a common initial treatment. We detail a case of refractory Kimura disease successfully managed with CVP (Cyclophosphamide, Vincristine, Prednisone) chemotherapy and no recurrence during 6 rounds of treatment. CASE REPORT A 64-year-old woman, previously diagnosed with Kimura disease, returned to the hospital with upper eyelid ptosis. Upon examination, a solid mass was palpable in her left upper eyelid. Peripheral blood tests confirmed elevated IgE levels at 356.0 IU/ml. An excisional biopsy showed infiltration of lymphocytes and eosinophils, consistent with Kimura disease. Despite undergoing corticosteroid treatment, surgical debulking, radiation, and immunosuppressant therapy, her condition worsened. Concerns were raised due to imaging features suggestive of lymphoma, although no malignancy was evident in subsequent biopsies. It was decided to manage the disease using CVP chemotherapy, leading to significant symptom improvement. There have been no recurrences during the 12-month follow-up period. CONCLUSIONS Kimura disease is typically benign and responsive to treatment, but it often recurs and can progress. When symptoms are not controlled with conventional treatments, including corticosteroids, immunosuppressants, radiation, and surgical debulking, chemotherapy may be a reasonable option even when no definite signs of malignancy is identified. Further research is needed to explore the utility of CHOP and CVP in managing uncontrolled Kimura disease.
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Affiliation(s)
- Jun Heo
- Department of Ophthalmology, Pusan National University College of Medicine, Busan, South Korea
| | - Hee-young Choi
- Department of Ophthalmology, Pusan National University College of Medicine, Busan, South Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Jungyul Park
- Department of Ophthalmology, Pusan National University College of Medicine, Busan, South Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
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Kim DH, Jung JH, Choi MY, Hwang JM, Kim SJ, Lee YH, Han SH, Choi DG, Choi HY, Choi DG, Kim DH, Lee DC, Lee SY, Lim HW, Lim HT, Lim KH, Ryu WY, Yang HK, Choi HY, Lim HT, Jung JH, Baek SH, Choi MY, Hwang JM, Kim SJ, Lee YH, Han SH, Park SH, Lee HJ, Kim SY, Lee SY, Gye HJ, Kim SY, Shin SY, Park J, Ryu WY, Park HS, Kim DH, Paik HJ, Choi DG, Lee JY, Yang HK, Oh SY, Lee SJ, Chung SA, Choi J, Oh SY, Kim M, Suh YW, Kang NY, Yum HR, Kim SA, Kim H, Han J, Cho YA, Kim H, Lew H, Lee DC, Rah SH, Yoo YJ, Lim KH, Ahn H, Kim US, Lee JH, Choung H, Kim SJ, Jeon H, Shin HJ, Han SY, Heo H, Park S, Park S, Kyung SE, Kim C, Park KA, Jung EH, Hong EH, Lim HW, Choi D, Choi YJ, Moon NJ, Lyu IJ, Cho SY. A cross-sectional study of ophthalmologic examination findings in 5385 Koreans presenting with intermittent exotropia. Sci Rep 2023; 13:1329. [PMID: 36693891 PMCID: PMC9873724 DOI: 10.1038/s41598-023-28015-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 01/11/2023] [Indexed: 01/25/2023] Open
Abstract
The Korean Intermittent Exotropia Multicenter Study (KIEMS) was a retrospective, cross-sectional and multicenter study for the investigation of intermittent exotropia involved 65 strabismus specialists from 53 institutions in Korea. Purpose of this study was to present ophthalmologic findings of intermittent exotropia from the KIEMS. Consecutive patients with intermittent exotropia of ≥ 8 prism diopters (PD) at distance or near fixation were included. Best-corrected visual acuity, cycloplegic refraction data, angles of deviation at several cardinal positions, ocular dominance, fusion control, oblique muscle function, and binocular sensory outcomes were collected. A total of 5385 participants (2793 females; age 8.2 years) were included. Non-dominant eye was more myopic than the dominant eye (- 0.60 vs. - 0.47 diopters, P < 0.001). Mean exodeviation angles were 23.5 PD at distance and 25.0 PD at near fixation. Basic type (86.2%) was the most, followed by convergence insufficiency (9.4%) and divergence excess (4.4%) types. Alternating ocular dominance and good fusion control were more common at near than at distance fixation. Good stereopsis at 40 cm was observed in 49.3% in Titmus stereo test (≤ 60 arcsec) and in 71.0% in Randot stereo test (≤ 63 arcsec). Intermittent exotropia was mostly diagnosed in childhood and patients with the condition showed relatively good binocular functions. This study may provide objective findings of intermittent exotropia in a most reliable way, given that the study included a large study population and investigated comprehensive ophthalmology examinations.
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Affiliation(s)
- Dae Hee Kim
- Department of Ophthalmology, Kim's Eye Hospital, Seoul, Korea
| | - Jae Ho Jung
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - Mi Young Choi
- Department of Ophthalmology, Chungbuk National University College of Medicine, Chungbuk National University Hospital, Cheongju, Korea
| | - Jeong-Min Hwang
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Su Jin Kim
- Department of Ophthalmology, Pusan National University School of Medicine, Yangsan Pusan National University Hospital, Yangsan, Korea
| | - Yeon-Hee Lee
- Department of Ophthalmology, Chungnam National University College of Medicine, Chungnam National University Hospital, Daejeon, Korea
| | - Sueng-Han Han
- Department of Ophthalmology, Yonsei University College of Medicine, Severance Eye Hospital, Seoul, Korea
| | - Dong Gyu Choi
- Department of Ophthalmology, Hallym University College of Medicine, Kangnam Sacred Heart Hospital, 1, Singil-Ro, Yeongdeungpo-Gu, Seoul, 07441, Republic of Korea.
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Park J, Kim J, Ryu D, Choi HY. Factors related to steroid treatment responsiveness in thyroid eye disease patients and application of SHAP for feature analysis with XGBoost. Front Endocrinol (Lausanne) 2023; 14:1079628. [PMID: 36817584 PMCID: PMC9928572 DOI: 10.3389/fendo.2023.1079628] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/12/2023] [Indexed: 02/03/2023] Open
Abstract
INTRODUCTION The primary treatment for active thyroid eye disease (TED) is immunosuppressive therapy with intravenous steroids. In this study, we attempted to predict responsiveness to steroid treatment in TED patients using eXtreme Gradient Boosting (XGBoost). Factors associated with steroid responsiveness were also statistically evaluated. METHODS Clinical characteristics and laboratory results of 89 patients with TED who received steroid treatment were retrospectively reviewed. XGBoost was used to explore responsiveness to steroid treatment, and the diagnostic performance was evaluated. Factors contributing to the model output were investigated using the SHapley Additive exPlanation (SHAP), and the treatment response was investigated statistically using SPSS software. RESULTS The eXtra Gradient Boost model showed high performance, with an excellent accuracy of 0.861. Thyroid-stimulating hormone, thyroid-stimulating immunoglobulin (TSI), and low-density lipoprotein (LDL) cholesterol had the highest impact on the model. Multivariate logistic regression analysis showed that less extraocular muscle limitation and high TSI levels were associated with a high risk of poor intravenous methylprednisolone treatment response. As a result of analysis through SHAP, TSH, TSI, and LDL had the highest impact on the XGBoost model. CONCLUSION TSI, extraocular muscle limitation, and LDL cholesterol levels may be useful in predicting steroid treatment response in patients with TED. In terms of machine learning, XGBoost showed relatively robust and reliable results for small datasets. The machine-learning model can assist in decision-making for further treatment of patients with TED.
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Affiliation(s)
- Jungyul Park
- Department of Ophthalmology, Pusan National University Hospital, Busan, Republic of Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Jaehyun Kim
- Department of Ophthalmology, Pusan National University Hospital, Busan, Republic of Korea
| | - Dongman Ryu
- Medical Research Institute, Pusan National University, Busan, Republic of Korea
| | - Hee-young Choi
- Department of Ophthalmology, Pusan National University Hospital, Busan, Republic of Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
- Department of Ophthalmology, School of Medicine, Pusan National University, Busan, Republic of Korea
- *Correspondence: Hee-young Choi,
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Choi HY, Kim SJ, Kim SY, Ahn JH, Lee JE. Binocular function in patients with intermittent exotropia accompanied by unilateral congenital ptosis. Sci Rep 2022; 12:18286. [PMID: 36316386 PMCID: PMC9622878 DOI: 10.1038/s41598-022-23254-1] [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] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 10/27/2022] [Indexed: 11/05/2022] Open
Abstract
Patients with intermittent exotropia (IXT) have a wide range of binocular deficits. This study aims to evaluate the effect of ptosis on the binocular function of patients with IXT. Clinical records of 45 IXT patients with congenital ptosis (IXT-ptosis group) and 58 age-matched IXT patients without ptosis (IXT only group) who presented for eye examination between January 2017 and June 2020 were retrospectively reviewed. Patients with amblyopia were excluded to rule out the effects of visual acuity on binocularity. Best-corrected visual acuity (BCVA), the magnitude of exodeviation at distance and at near, stereopsis, and office-based control scores at the first visit were reviewed. The binocular functions of the two groups were compared. The mean ± SD age of the overall patients was 6.6 ± 2.7 years. There were no significant differences in the distribution of age, sex, spherical equivalent refraction, or BCVA between the two groups (all p > 0.05). Although the office-based control scores at distance and near were slightly worse in the IXT-ptosis group, the differences were not statistically significant (at distance, 2.8 ± 1.87 vs. 2.2 ± 1.13, p = 0.08; at near, 1.8 ± 0.67 vs. 1.6 ± 0.74, p = 0.11). Furthermore, the IXT-ptosis group had worse stereopsis at distance (p = 0.01). There were no significant differences between the two groups in near stereopsis or exodeviation magnitude (p > 0.05). A larger proportion of patients had suppression on the Bagolini test in the IXT-ptosis group than in the IXT-only group (p = 0.04). The IXT-ptosis group had worse distance stereoacuity, and a larger proportion of patients had suppression on the Bagolini test than the IXT only group. In IXT patients, the presence of coexisting ptosis can have a further deleterious impact on binocular function.
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Affiliation(s)
- Hee-young Choi
- grid.412588.20000 0000 8611 7824Department of Ophthalmology, Pusan National University KR, Biomedical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Su-Jin Kim
- grid.412591.a0000 0004 0442 9883Department of Ophthalmology, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, 50612 South Korea ,grid.168010.e0000000419368956Department of Ophthalmology, Stanford University School of Medicine, Palo Alto, CA USA
| | - Sang-Yoon Kim
- grid.412591.a0000 0004 0442 9883Department of Ophthalmology, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, 50612 South Korea
| | - Jung Hyo Ahn
- grid.412591.a0000 0004 0442 9883Department of Ophthalmology, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, 50612 South Korea
| | - Ji-Eun Lee
- grid.412591.a0000 0004 0442 9883Department of Ophthalmology, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, 50612 South Korea
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Kim TY, Park J, Jeon H, Choi HY. Traumatic Optic Neuropathy Aggravated by Orbital Emphysema after Orbital Fracture. J Korean Ophthalmol Soc 2022. [DOI: 10.3341/jkos.2022.63.6.554] [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: 11/23/2022]
Abstract
Purpose: To report a case of traumatic optic neuropathy aggravated by orbital emphysema after an orbital fracture.Case summary: A 19-year-old man with no specific medical history was referred for a right orbital fracture caused by blunt trauma to the supraorbital rim of the right eye. Computed tomography (CT) showed a right orbital fracture involving the inferomedial wall and inferomedial strut. The corrected visual acuity was 0.4 in the right eye (RE) and 1.0 in the left and the intraocular pressure was 15 and 18 mmHg, respectively. Restriction on downgaze, abduction, and an indefinite relative afferent pupillary defect (RAPD) were observed in the RE. Fundus exam was non-specific other than commotio retinae on the temporal side of the macula in the RE. After 12 hours post trauma, the visual acuity of the RE had decreased to light perception. Definite RAPD was observed with optic disc swelling on the fundus photo and optical coherence tomography. Orbital CT showed air shadows, which were not seen on the initial evaluation, adjacent to the optic disc. We diagnosed traumatic optic neuropathy aggravated by orbital emphysema. High-dose intravenous steroid was given for 3 days. Despite a lateral canthotomy and cantholysis to decompress the right orbit, visual acuity did not improve above counting fingers.Conclusions: Increased intraorbital pressure and congestion caused by orbital emphysema may exacerbate traumatic optic neuropathy. Therefore, close observation is required.
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Suh H, Choi H, Jeon H. The Radiologic Characteristics and Retinal Thickness Are Correlated With Visual Field Defect in Patients With a Pituitary Mass. J Neuroophthalmol 2021; 41:e541-e547. [PMID: 34788245 DOI: 10.1097/wno.0000000000001011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Investigation of visual field defects (VFDs) is important to decide the treatment and to predict the prognosis in patients with a pituitary mass. The aim of this study was to evaluate the correlation among 2 diagnostic modalities-MRI and optical coherence tomography (OCT)-and VFDs. METHODS Consecutive patients who showed the presence of a pituitary mass on MRI and in whom ophthalmic examinations were performed were recruited. Height and volume of the mass, sagittal and coronal displacement of optic chiasm, and the direction of mass expansion were measured. Patients were divided into 2 groups according to the presence (VFD group) or absence of VFDs (no VFDs group [NVFD]). The correlation among MRI parameters, OCT parameters, and VFDs were examined, and the diagnostic values of MRI and OCT and the combined value of the 2 modalities were analyzed. RESULTS Forty-one patients were included. The greatest coefficients of determination were observed between the sagittal displacement and pattern standard deviation (PSD) (R2 = 0.3661, P < 0.001) and between the inferonasal ganglion cell-inner plexiform layer (GCIPL) and PSD (R2 = 0.4079, P < 0.001). The height and the size of the mass in the VFD group were significantly greater as 57% and 148%, respectively, and the VFD group had more severe chiasmal displacement both in the sagittal (165%) and in the coronal (178%) plane (large effect in all). All macular GCIPLs were thinner in the NVFD group (range 9%-26%, large effect), whereas only temporal (25%) and average (11%) values were among peripapillary retinal nerve fiber layers. CONCLUSIONS The highest correlations with the degree of the VFD were seen in the sagittal displacement of optic chiasm and the inferonasal GCIPL, and these parameters were correlated concurrently. Both modalities showed a good diagnostic value for discriminating VFDs.
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Affiliation(s)
- Hiebum Suh
- Department of Radiology (HBS), Pusan National University School of Medicine, Busan, South Korea ; Department of Ophthalmology (HC, HJ), Pusan National University Hospital, Busan, South Korea ; and Biomedical Research Institute (HC, HJ), Pusan National University Hospital, Busan, South Korea
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Park J, Choi HY. Subcutaneous Tocilizumab for Thyroid Eye Disease. J Korean Ophthalmol Soc 2021. [DOI: 10.3341/jkos.2021.62.11.1553] [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: 11/23/2022]
Abstract
Purpose: To demonstrate the efficacy of subcutaneous tocilizumab (TCZ-SC) treatment for recalcitrant thyroid eye disease (TED) refractory to intravenous methylprednisolone (MP) and oral methotrexate (MTX).Case summary: (Case 1) A 52-year-old man, smoker, with hyperthyroidism presented with a 3-months history of TED. The initial clinical activity score (CAS) was 5 (total score of 7). High-dose intravenous MP and oral MTX failed to improve the symptoms. He was treated with four doses of 162 mg TCZ-SC at an interval of 2 weeks. Pre-treatment laboratory test results were within normal limits. CAS was reduced to 2 weeks after the final injection, and there were no recurrences during the 6-month follow-up. (Case 2) A 37-year-old woman, non-smoker, with a 3-months history of hyperthyroidism presented with conjunctival injection and upper eyelid erythema. The initial CAS was 4, and thyroid-stimulating immunoglobulin level was raised (475% of normal). The symptoms did not improve with 7.5 g intravenous MP and oral MTX. The patient was treated with 162 mg TCZ-SC. Pre-treatment laboratory test results were within normal limits. CAS was reduced to 1 after the final injection, and there were no recurrences during the 6-months follow-up.Conclusions: TCZ-SC improves symptoms of corticosteroid-resistant TED, and may be a reasonable option in recalcitrant TED cases. However, further studies are required to justify the use of TCZ-SC for TED.
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Choi H, Han J, Lee J. Renewable Butanol Production via Catalytic Routes. Int J Environ Res Public Health 2021; 18:ijerph182211749. [PMID: 34831504 PMCID: PMC8618088 DOI: 10.3390/ijerph182211749] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 11/08/2021] [Accepted: 11/08/2021] [Indexed: 11/16/2022]
Abstract
Fluctuating crude oil price and global environmental problems such as global warming and climate change lead to growing demand for the production of renewable chemicals as petrochemical substitutes. Butanol is a nonpolar alcohol that is used in a large variety of consumer products and as an important industrial intermediate. Thus, the production of butanol from renewable resources (e.g., biomass and organic waste) has gained a great deal of attention from researchers. Although typical renewable butanol is produced via a fermentative route (i.e., acetone-butanol-ethanol (ABE) fermentation of biomass-derived sugars), the fermentative butanol production has disadvantages such as a low yield of butanol and the formation of byproducts, such as acetone and ethanol. To avoid the drawbacks, the production of renewable butanol via non-fermentative catalytic routes has been recently proposed. This review is aimed at providing an overview on three different emerging and promising catalytic routes from biomass/organic waste-derived chemicals to butanol. The first route involves the conversion of ethanol into butanol over metal and oxide catalysts. Volatile fatty acid can be a raw chemical for the production of butanol using porous materials and metal catalysts. In addition, biomass-derived syngas can be transformed to butanol on non-noble metal catalysts promoted by alkali metals. The prospect of catalytic renewable butanol production is also discussed.
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Affiliation(s)
- Heeyoung Choi
- Department of Environmental and Safety Engineering, Ajou University, Suwon 16499, Korea;
| | - Jeehoon Han
- School of Semiconductor and Chemical Engineering & School of Chemical Engineering, Jeonbuk National University, Jeonju 54896, Korea
- Correspondence: (J.H.); (J.L.)
| | - Jechan Lee
- Department of Environmental and Safety Engineering, Ajou University, Suwon 16499, Korea;
- Department of Energy Systems Research, Ajou University, Suwon 16499, Korea
- Correspondence: (J.H.); (J.L.)
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Park C, Choi H, Andrew Lin KY, Kwon EE, Lee J. COVID-19 mask waste to energy via thermochemical pathway: Effect of Co-Feeding food waste. Energy (Oxf) 2021; 230:120876. [PMID: 33994654 PMCID: PMC8103777 DOI: 10.1016/j.energy.2021.120876] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 04/19/2021] [Accepted: 05/04/2021] [Indexed: 05/04/2023]
Abstract
In this study, co-pyrolysis of single-use face mask (for the protection against COVID-19) and food waste was investigated for the purpose of energy and resource valorization of the waste materials. To this end, disposable face mask (a piece of personal protective equipment) was pyrolyzed to produce fuel-range chemicals. The pyrolytic gas evolved from the pyrolysis of the single-use face mask consisted primarily of non-condensable permanent hydrocarbons such as CH4, C2H4, C2H6, C3H6, and C3H8. An increase in pyrolysis temperature enhanced the non-condensable hydrocarbon yields. The pyrolytic gas had a HHV of >40 MJ kg-1. In addition, hydrocarbons with wider carbon number ranges (e.g., gasoline-, jet fuel-, diesel-, and motor oil-range hydrocarbons) were produced in the pyrolysis of the disposable face mask. The yields of the gasoline-, jet fuel-, and diesel-range hydrocarbons obtained from the single-use mask were highest at 973 K. The pyrolysis of the single-use face mask yielded 14.7 wt% gasoline-, 18.4 wt% jet fuel-, 34.1 wt% diesel-, and 18.1 wt% motor oil-range hydrocarbons. No solid char was produced via the pyrolysis of the disposable face mask. The addition of food waste to the pyrolysis feedstock led to the formation of char, but the presence of the single-use face mask did not affect the properties and energy content of the char. More H2 and less hydrocarbons were produced by co-feeding food waste in the pyrolysis of the disposable face mask. The results of this study can contribute to thermochemical management and utilization of everyday waste as a source of energy.
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Affiliation(s)
- Chanyeong Park
- Department of Energy Systems Research, Ajou University, 206 World Cup-ro, Suwon, 16499, Republic of Korea
| | - Heeyoung Choi
- Department of Environmental and Safety Engineering, Ajou University, 206 World Cup-ro, Suwon, 16499, Republic of Korea
| | - Kun-Yi Andrew Lin
- Department of Environmental Engineering & Innovation and Development Center of Sustainable Agriculture, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung, 402, Taiwan
| | - Eilhann E Kwon
- Department of Environment and Energy, Sejong University, 209 Neungdong-ro, Seoul, 05006, Republic of Korea
| | - Jechan Lee
- Department of Energy Systems Research, Ajou University, 206 World Cup-ro, Suwon, 16499, Republic of Korea
- Department of Environmental and Safety Engineering, Ajou University, 206 World Cup-ro, Suwon, 16499, Republic of Korea
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13
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Choi H, Kim SJ, Jung J, Lee JE, Kim SY, Lee SU. Factors associated with the effectiveness of part-time patching for intermittent exotropia in children. Eur J Ophthalmol 2021; 32:2026-2033. [PMID: 34374312 DOI: 10.1177/11206721211037826] [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] [Indexed: 11/16/2022]
Abstract
PURPOSE To evaluate the factors associated with the efficacy of low-dose part-time patching in children with intermittent exotropia (IXT). METHODS In this prospective observational study, we enrolled 186 patients diagnosed with IXT. Outcome measures included office based control scales, magnitude of exo-deviation, and stereoacuity at near and distance after daily patching for 2 h. We analyzed the clinical data and demographic factors association with improvement of IXT. RESULTS The study was completed by 152 subjects of total enrolled patients on a consecutive basis followed up for 1 year. Decrease in the magnitude of exo-deviation, improvement of control, and or gain of stereoacuity were observed in 31.6% patients of the recruited subjects after part-time patching. Multivariate analyses showed that prognostic factors determining improvement to part-time patching included convergence insufficiency (CI) type IXT (p = 0.016), poor distance stereopsis (p = 0.044), and large exotropic deviation at distance (p = 0.025). CONCLUSIONS CI-type exotropia, large distance magnitude of exo-deviation, or poor distance stereopsis appear to be associated with a better response to part-time patching. Therefore low dose part-time patching may be a useful non-surgical treatment alternative to delay surgery in these cases.
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Affiliation(s)
- Heeyoung Choi
- Department of Ophthalmology, Pusan National University Hospital, School of Medicine, Biomedical Research Institute, Pusan National University, Busan, Korea
| | - Su Jin Kim
- Department of Ophthalmology, Pusan National University Yangsan Hospital, School of Medicine and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University, Yangsan, Korea
| | - Jaeho Jung
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul, South Korea
| | - Ji-Eun Lee
- Department of Ophthalmology, Pusan National University Yangsan Hospital, School of Medicine and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University, Yangsan, Korea
| | - Sang Yoon Kim
- Department of Ophthalmology, Pusan National University Yangsan Hospital, School of Medicine and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University, Yangsan, Korea
| | - Seung Uk Lee
- Department of Ophthalmology, Kosin University College of Medicine, Busan, South Korea
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14
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Joo J, Lee S, Choi H, Lin KYA, Lee J. Single-Use Disposable Waste Upcycling via Thermochemical Conversion Pathway. Polymers (Basel) 2021; 13:polym13162617. [PMID: 34451157 PMCID: PMC8400630 DOI: 10.3390/polym13162617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 11/16/2022] Open
Abstract
Herein, the pyrolysis of two types of single-use disposable waste (single-use food containers and corrugated fiberboard) was investigated as an approach to cleanly dispose of municipal solid waste, including plastic waste. For the pyrolysis of single-use food containers or corrugated fiberboard, an increase in temperature tended to increase the yield of pyrolytic gas (i.e., non-condensable gases) and decrease the yield of pyrolytic liquid (i.e., a mixture of condensable compounds) and solid residue. The single-use food container-derived pyrolytic product was largely composed of hydrocarbons with a wide range of carbon numbers from C1 to C32, while the corrugated fiberboard-derived pyrolytic product was composed of a variety of chemical groups such as phenolic compounds, polycyclic aromatic compounds, and oxygenates involving alcohols, acids, aldehydes, ketones, acetates, and esters. Changes in the pyrolysis temperature from 500 °C to 900 °C had no significant effect on the selectivity toward each chemical group found in the pyrolytic liquid derived from either the single-use food containers or corrugated fiberboard. The co-pyrolysis of the single-use food containers and corrugated fiberboard led to 6 times higher hydrogen (H2) selectivity than the pyrolysis of the single-use food containers only. Furthermore, the co-pyrolysis did not form phenolic compounds or polycyclic aromatic compounds that are hazardous environmental pollutants (0% selectivity), indicating that the co-pyrolysis process is an eco-friendly method to treat single-use disposable waste.
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Affiliation(s)
- Junghee Joo
- Department of Energy Systems Research, Ajou University, 206 World cup-ro, Suwon 16499, Korea;
| | - Seonho Lee
- Department of Environmental and Safety Engineering, Ajou University, 206 World cup-ro, Suwon 16499, Korea; (S.L.); (H.C.)
| | - Heeyoung Choi
- Department of Environmental and Safety Engineering, Ajou University, 206 World cup-ro, Suwon 16499, Korea; (S.L.); (H.C.)
| | - Kun-Yi Andrew Lin
- Innovation and Development Center of Sustainable Agriculture, Department of Environmental Engineering, National Chung Hsing University, 250 Kuo-Kuang Road, Taichung 402, Taiwan;
| | - Jechan Lee
- Department of Energy Systems Research, Ajou University, 206 World cup-ro, Suwon 16499, Korea;
- Department of Environmental and Safety Engineering, Ajou University, 206 World cup-ro, Suwon 16499, Korea; (S.L.); (H.C.)
- Correspondence:
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15
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Kok HJ, Crowder CN, Koo Min Chee L, Choi HY, Lin N, Barton ER. Muscle insulin-like growth factor-I modulates murine craniofacial bone growth. Eur Cell Mater 2021; 42:72-89. [PMID: 34279041 DOI: 10.22203/ecm.v042a06] [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: 01/31/2023] Open
Abstract
Insulin-like growth factor I (IGF-I) is essential for muscle and bone development and a primary mediator of growth hormone (GH) actions. While studies have elucidated the importance of IGF-I specifically in muscle or bone development, few studies to date have evaluated the relationship between muscle and bone modulated by IGF-I in vivo, during post-natal growth. Mice with muscle-specific IGF-I overexpression (mIgf1+/+) were utilised to determine IGF-I- and muscle-mass-dependent effects on craniofacial skeleton development during post-natal growth. mIgf1+/+ mice displayed accelerated craniofacial bone growth when compared to wild-type animals. Virus-mediated expression of IGF-I targeting the masseter was performed to determine if post-natal modulation of IGF-I altered mandibular structures. Increased IGF-I in the masseter affected the mandibular base plane angle in a lateral manner, increasing the width of the mandible. At the cellular level, increased muscle IGF-I also accelerated cartilage thickness in the mandibular condyle. Importantly, mandibular length changes associated with increased IGF-I were not present in mice with genetic inhibition of muscle IGF-I receptor activity. These results demonstrated that muscle IGF-I could indirectly affect craniofacial growth through IGF-I-dependent increases in muscle hypertrophy. These findings have clinical implications when considering IGF-I as a therapeutic strategy for craniofacial disorders.
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Affiliation(s)
| | | | | | | | | | - E R Barton
- Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, 1864 Stadium Road, Gainesville, FL 32611,
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16
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Park SH, Kang MS, Kim SY, Lee JE, Shin JH, Choi H, Kim SJ. Analysis of factors affecting visual field recovery following surgery for pituitary adenoma. Int Ophthalmol 2021; 41:2019-2026. [PMID: 33625650 DOI: 10.1007/s10792-021-01757-6] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/06/2021] [Indexed: 10/22/2022]
Abstract
PURPOSE To analyze the factors influencing visual field recovery in patients with pituitary adenoma following surgical treatment. METHODS We retrospectively reviewed 144 eyes of 72 patients with pituitary adenoma who had been followed up for more than 6 months following surgery between January 2016 and December 2019. Pre and postoperative visual acuity, visual field test and retinal nerve fiber layer (RNFL) thickness were investigated. We defined recovery of visual field defects as being an improvement in mean deviation (MD) of 2 dB or more. RESULT The average age of the 72 patients (144 eyes) was 51.94 ± 14.69 years, making for 37 patients in the recovery group and 35 patients in the non-recovery group. Preoperative MD, pattern standard deviation (PSD), and visual field indexes (VFI) were negatively correlated to postoperative MD, PSD and VFI changes and positively correlated to postoperative MD, PSD, and VFI values. Using multiple regression analysis, a shorter duration of symptoms (Odds ratio [OR], 0.990; p = 0.033), higher preoperative MD values (OR, 0.871; p = 0.025), and thicker temporal RNFL (OR, 1.068; p = 0.048) were associated with a visual field recovery following surgery. CONCLUSIONS The prognosis for visual field recovery is favorable for patients who have a short period from symptom onset to surgery, a higher MD value of preoperative VF, and a thicker peripapillary temporal RNFL thickness. Therefore, the preoperative MD, temporal RNFL thickness, and the symptom period can be predictive variables affecting postoperative visual field recovery.
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Affiliation(s)
- Su Hwan Park
- Department of Ophthalmology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20-Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 50612, South Korea
| | - Min Seung Kang
- Department of Ophthalmology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20-Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 50612, South Korea
| | - Sang Yoon Kim
- Department of Ophthalmology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20-Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 50612, South Korea
| | - Ji-Eun Lee
- Department of Ophthalmology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20-Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 50612, South Korea
| | - Jong Hoon Shin
- Department of Ophthalmology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20-Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 50612, South Korea
| | - Heeyoung Choi
- Department of Ophthalmology, Pusan National University School of Medicine, Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Su Jin Kim
- Department of Ophthalmology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, 20-Geumo-ro, Mulgeum-eup, Yangsan, Gyeongsangnam-do, 50612, South Korea.
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17
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Yoon JA, Choi H, Shin YB, Jeon H. Development of a questionnaire to identify ocular torticollis. Eur J Pediatr 2021; 180:561-567. [PMID: 32979091 DOI: 10.1007/s00431-020-03813-2] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/11/2020] [Accepted: 09/15/2020] [Indexed: 11/30/2022]
Abstract
Ocular disease is one of the causes of abnormal head positioning. Conventionally, the behavioral characteristics of ocular torticollis patients are different from those of non-ocular torticollis patients, though research addressing the significance of this difference is yet limited. This prospective, cross-sectional study aims to develop a questionnaire based on the clinical features in children with abnormal head posture being ocularly assessed. Children aged ≥ 6 months who visited our rehabilitation medicine clinic with a chief complaint of abnormal head posture were included. Patients with apparent orthopedic and neurological diseases were excluded. A 10-item questionnaire was developed to analyze the behavioral characteristics of patients. The patients were divided into ocular and non-ocular torticollis groups according to ophthalmologic examination results. Thirty-four and 13 patients were assigned to the non-ocular torticollis and ocular torticollis groups, respectively. Five questions were finally selected and the questionnaire was scored as the sum of the scores for the each questions (yes = 1 point, no = 0 point). The median (interquartile range) score of the ocular torticollis group (3.0 (3.0-4.0)) was significantly higher than that of the non-ocular torticollis group (2.0 (1.0-3.0); p = 0.000).Conclusion: Our parent-reported torticollis assessment questionnaire may be useful for screening ocular torticollis. What is known: • Ocular disease is one of the various causes of abnormal head positioning. • The behavioral characteristics of patients with ocular torticollis are different from those of patients with non-ocular torticollis; research on this matter is limited. What is new: • We delveloped a questionnaire to differentiate ocular and postural torticollis and the score of the questionnaire was different between patients with or without ocular disease. • The questionnaire based on behavioral characteristics may help screening and determining the need of ophthalmic evaluation in patients with torticollis.
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Affiliation(s)
- Jin A Yoon
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Busan, South Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Heeyoung Choi
- Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea.,Department of Ophthalmology, Pusan National University Hospital, Busan, South Korea
| | - Yong Beom Shin
- Department of Rehabilitation Medicine, Pusan National University School of Medicine, Busan, South Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Hyeshin Jeon
- Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea. .,Department of Ophthalmology, Pusan National University Hospital, Busan, South Korea.
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18
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Kim K, Choi HY, Pak K, Jeon H. Changes in brain glucose metabolism following traumatic optic neuropathy in rats. All Life 2021. [DOI: 10.1080/26895293.2020.1861110] [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: 10/22/2022] Open
Affiliation(s)
- Keunyoung Kim
- Department of Nuclear Medicine, Pusan National University Hospital, Busan, South Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Hee-young Choi
- Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
- Department of Ophthalmology, Pusan National University Hospital, Busan, South Korea
| | - Kyoungjune Pak
- Department of Nuclear Medicine, Pusan National University Hospital, Busan, South Korea
- Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Hyeshin Jeon
- Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
- Department of Ophthalmology, Pusan National University Hospital, Busan, South Korea
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19
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Kwon YE, Choi HY, Oh HJ, Ahn SY, Ryu DR, Kwon YJ. Vertebral fracture is associated with myocardial infarction in incident hemodialysis patients: a Korean nationwide population-based study. Osteoporos Int 2020; 31:1965-1973. [PMID: 32394062 DOI: 10.1007/s00198-020-05423-y] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 04/14/2020] [Indexed: 10/24/2022]
Abstract
UNLABELLED Chronic kidney disease (CKD)-mineral and bone disorder suggests that fragile bone and vascular disorder might be connected closely in CKD patients. In this study, fracture event was significantly associated with myocardial infarction (MI) in end-stage renal disease patients on hemodialysis (HD), especially for vertebral fractures. INTRODUCTION CKD-mineral and bone disorder is characterized by biochemical abnormalities, bone disorders, and vascular calcification. We aimed to verify the association between fracture and MI in CKD patients. METHODS Records for incident CKD stage 3 to 5 patients and patients who initiated HD between July 2014 and June 2018 were retrieved from the Korean Health Insurance Review & Assessment Service Database. Fractures were defined using diagnostic codes and were classified into vertebral, femoral, and other site fractures. MI was defined using a combination of MI diagnostic codes and related procedure codes. Multiple logistic regressions and 1:1 propensity score matching analysis were conducted. RESULTS A total of 38,935 patients (HD, 11,379; pre-dialysis CKD, 27,556) were included in this study. A total of 5,057 (13.0%) patients experienced fracture, and 1,431 (3.7%) patients had MI. Multiple logistic regression analysis showed that fracture was significantly associated with MI in the HD group (odds ratio (OR) 1.34, P = 0.024), but not in the pre-dialysis CKD group (OR 1.04, P = 0.701). After propensity score matching for age, gender, and diabetes mellitus between patients with and without fracture, fracture still significantly correlated with MI in HD patients (OR 1.47, P = 0.034) but not in patients with pre-dialysis CKD (OR 1.04, P = 0.751). Subgroup analysis by fracture site found that vertebral fracture was associated with MI in HD patients (OR 2.11, P = 0.024), but femoral or other site fractures were not. CONCLUSION In HD patients, fracture was significantly associated with MI, especially for vertebral fractures patients.
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Affiliation(s)
- Y E Kwon
- Department of Internal Medicine, Hanyang University College of Medicine, Myongji Hospital, Goyang-si, South Korea
| | - H Y Choi
- The Korean Society of Nephrology, Seoul, South Korea
| | - H J Oh
- Ewha Institute of Convergence Medicine and Research Institute for Human Health Information, Ewha Womans University, Seoul, South Korea
| | - S Y Ahn
- Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea
| | - D-R Ryu
- Department of Internal Medicine, Ewha Womans University College of Medicine, Seoul, South Korea.
| | - Y J Kwon
- Department of Internal Medicine, Korea University College of Medicine, Seoul, South Korea.
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20
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Jeon H, Park KH, Kim H, Choi H. SD-OCT parameters and visual field defect in chiasmal compression and the diagnostic value of neural network model. Eur J Ophthalmol 2020; 31:2738-2745. [PMID: 32757633 DOI: 10.1177/1120672120947593] [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] [Indexed: 11/15/2022]
Abstract
PURPOSE To evaluate the peripapillary retinal nerve fiber layer (RNFL) and macular ganglion cell-inner plexiform layer (GCIPL) measurements using spectral domain optical coherence tomography (SD-OCT) in patients with chiasmal compression and analyze the diagnostic value of a neural network model. METHODS Forty-seven patients with chiasmal compressive disorder were recruited and divided into two groups depending on the visual field defect (perimetric; group 1 and preperimetric; group 2). Fifty-seven normal subjects were also recruited (group 3). Peripapillary RNFL and macular GCIPL were analyzed in each group. A multilayer perceptron was trained using a training dataset and derived a neural network model. The diagnostic performances were compared using the area under the receiver operating curve (AUROC) between each parameters and neural network model. RESULTS All macular GCIPL parameters, except inferotemporal GCIPL thickness, were thinner in group 1 than in group 2 and group 3, with barely any difference between group 2 and group 3 parameter values. The diagnostic power of the neural network model, minimum GCIPL, and inferonasal GCIPL were superior when compared with other parameters; the diagnostic values of these three parameters are not significantly different in discriminating the patients and normal control. However, the neural network exhibited the best diagnostic power in distinguishing group 2 and group 3. CONCLUSION Macular GCIPL was reduced in chiasmal compression patients with visual field defect which was not evident in the preperimetric state. Neural network model showed superior diagnostic value in discriminating the preperimetric patients from normal control. The results suggest that neural networks may be helpful in the early diagnosis of chiasmal compression.
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Affiliation(s)
- Hyeshin Jeon
- Department of Ophthalmology, Pusan National University, School of medicine, Busan, South Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Keun-Hyung Park
- Department of Ophthalmology, Pusan National University, School of medicine, Busan, South Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Huikyung Kim
- Department of Ophthalmology, Pusan National University, School of medicine, Busan, South Korea
| | - Heeyoung Choi
- Department of Ophthalmology, Pusan National University, School of medicine, Busan, South Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
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Abstract
Purpose: To investigate the correlation between clinical features of strabismus and motor dysfunction classified according to the Gross Motor Function Classification System (GMFCS) in patients with spastic cerebral palsy (CP).Methods: In this retrospective, cross-sectional study in single tertiary medical center, 62 patients who are diagnosed with spastic CP who had an ophthalmic examination between 2006 and 2014 were included. Only patients with vision sufficient to fixate were included and patients with restrictive or paralytic strabismus were excluded. The types of CP were classified as diplegia, hemiplegia, or quadriplegia for distribution of motor impairment. The GMFCS was used to grade gross motor dysfunction, which was then classified as mild (grade 1, 2 and 3) or severe (grade 4 and 5) motor impairment. Strabismus was investigated in terms of direction, constancy, and deviation angle. The relationship between strabismus characteristics and the level of GMFCS and type of CP were assessed.Results: Thirty-eight and 24 patients had mild or severe motor deficit, respectively. Forty patients had strabismus, which was more frequent in patients with severe motor impairment.(P = .014) Exotropia and esotropia occurred with similar frequency. Constant and large-angle strabismus was frequently observed in patients with severe motor impairment.(P < .005, 0.027) The topographical subtype of CP was not related to clinical features of strabismus.Conclusions: The prevalence of strabismus is higher in severe motor impairment. The constancy and angle of strabismus was related to the severity of motor impairment while the topographical subtype of CP has no significant relationship.
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Affiliation(s)
- Hyeshin Jeon
- Department of Ophthalmology, Pusan National University Hospital, Busan, South Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
| | - Jae Ho Jung
- Department of Ophthalmology, Seoul National University College of Medicine, Seoul, South Korea
| | - Jin A Yoon
- Department of Rehabilitation medicine, Pusan National University Hospital, Busan, South Korea
| | - Heeyoung Choi
- Department of Ophthalmology, Pusan National University Hospital, Busan, South Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan, South Korea
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Lee M, Choi H, Joo JY, Kim HJ, Lee JY. Implant placement simultaneously sinus augmentation using crestal approach in atrophic maxilla. Clin Oral Implants Res 2018. [DOI: 10.1111/clr.312_13358] [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: 12/01/2022]
Affiliation(s)
- Munyoung Lee
- Pusan National University Dental Hospital, Korea
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23
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Choi H, Lee M, Joo JY, Kim HJ. Esthetic anterior implant therapy by computer guided surgery and transgingival GBR. Clin Oral Implants Res 2018. [DOI: 10.1111/clr.310_13358] [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: 11/30/2022]
Affiliation(s)
| | - Munyoung Lee
- Pusan National University Dental Hospital, Korea
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24
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Choi H, Kim E, Kang J, Kim HJ, Lee JY, Choi J, Joo JY. Real-time PCR quantification of 9 periodontal pathogens in saliva samples from periodontally healthy Korean young adults. J Periodontal Implant Sci 2018; 48:261-271. [PMID: 30202609 PMCID: PMC6125667 DOI: 10.5051/jpis.2018.48.4.261] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 08/20/2018] [Indexed: 11/29/2022] Open
Abstract
Purpose Few studies have examined periodontal pathogens from saliva samples in periodontally healthy young adults. The purposes of this study were to determine the prevalence of periodontopathic bacteria and to quantify periodontal pathogens in saliva samples using real-time polymerase chain reaction (PCR) assays in periodontally healthy Korean young adults under 35 years of age. Methods Nine major periodontal pathogens were analyzed by real-time PCR in saliva from 94 periodontally healthy young adults. Quantification of Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola, Prevotella intermedia, Fusobacterium nucleatum, Campylobacter rectus, Peptostreptococcus anaerobius, and Eikenella corrodens was performed by DNA copy number measurement. Results F. nucleatum and E. corrodens were detected in all subjects; the numbers of positive samples were 87 (92.6%), 91 (96.8%), and 90 (95.7%) for P. gingivalis, P. anaerobius, and C. rectus, respectively. Other pathogens were also detected in periodontally healthy subjects. Analysis of DNA copy numbers revealed that the most abundant periodontal pathogen was F. nucleatum, which was significantly more prevalent than all other bacteria (P<0.001), followed by P. anaerobius, P. gingivalis, E. corrodens, C. rectus, and T. denticola. There was no significant difference in the prevalence of each bacterium between men and women. The DNA copy number of total bacteria was significantly higher in men than in women. Conclusions Major periodontal pathogens were prevalent in the saliva of periodontally healthy Korean young adults. Therefore, we suggest that the development of periodontal disease should not be overlooked in periodontally healthy young people, as it can arise due to periodontal pathogen imbalance and host susceptibility.
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Affiliation(s)
- Heeyoung Choi
- Department of Periodontology, Institute of Translational Dental Sciences, Pusan National University School of Dentistry, Yangsan, Korea
| | | | | | - Hyun-Joo Kim
- Department of Periodontology, Institute of Translational Dental Sciences, Pusan National University School of Dentistry, Yangsan, Korea
| | - Ju-Youn Lee
- Department of Periodontology, Institute of Translational Dental Sciences, Pusan National University School of Dentistry, Yangsan, Korea.,Department of Periodontology and Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Korea
| | - Jeomil Choi
- Department of Periodontology, Institute of Translational Dental Sciences, Pusan National University School of Dentistry, Yangsan, Korea.,Department of Periodontology and Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Korea
| | - Ji-Young Joo
- Department of Periodontology, Institute of Translational Dental Sciences, Pusan National University School of Dentistry, Yangsan, Korea.,Department of Periodontology and Dental Research Institute, Pusan National University Dental Hospital, Yangsan, Korea
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Choi HY, Kim Y, Cho H, Kim BH, Ki M. Risk of diabetes in viral hepatitis B or C patients compared to that in noninfected individuals in Korea, 2002-2013: A population-based cohort study. J Viral Hepat 2018; 25:272-280. [PMID: 29080254 DOI: 10.1111/jvh.12815] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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: 07/23/2017] [Accepted: 09/22/2017] [Indexed: 12/13/2022]
Abstract
While the association between hepatitis C virus (HCV) infection and diabetes has been established, the relationship between hepatitis B virus (HBV) infection and diabetes remains unclear. Therefore, we compared the association between diabetes development in HBV, HCV and co-infected (HBV/HCV) patients to that in noninfected participants using population-based cohort data. We used the National Health Insurance Service-National Sample Cohort, which consists of 514 791 randomly selected persons among those who underwent health check-ups from 2002 to 2003 aged 40-79 years. Adults found to have HBV or HCV infection from 2002 to 2003, without a prior history of diabetes, were selected as subjects. Competing risk regression models were used to estimate cumulative incidence and hazards ratios (HRs) of diabetes development. The cumulative incidences, incidence densities and HRs of diabetes were highest in the co-infected group, followed by those in the HCV-, HBV- and noninfected groups. The 12-year cumulative incidences were as follows: 42.0% in HBV/HCV-, 32.9% in HCV-, 23.9% in HBV- and 18.3% in the noninfected groups. The incidence density per 1000 person-years was 55.0, 51.5, 38.2 and 28.2 for the HBV/HCV-, HCV-, HBV- and noninfected groups, respectively. The adjusted HRs for diabetes were 1.90, 1.68 and 1.41 for the HBV/HCV-, HCV- and HBV-infected groups, respectively. Our findings suggest that both HCV and HBV infections are associated with the development of diabetes; therefore, prevention of, screening for, and treatment of both may reduce the risk of diabetes in these patients.
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Affiliation(s)
- H Y Choi
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Korea
| | - Y Kim
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Korea
| | - H Cho
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Korea
| | - B H Kim
- Center for Liver Cancer, National Cancer Center, Goyang, Korea
| | - M Ki
- Department of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Korea
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Abstract
PURPOSE To investigate the long-term outcomes of intermittent exotropia surgery for children less than 4 years of age. MATERIALS AND METHODS Consecutive patients who underwent surgery for intermittent exotropia and had follow-up durations longer than 2 years were recruited. The patients were classified according to age at surgery-the patients of group 1 had undergone surgery before 4 years of age and those of group 2 at or after 4 years of age. Motor success was defined by exodeviation < 10 prism diopters (PD) and esodeviation < 5 PD at distance at 2 years postoperatively. Stereoacuity was considered as success at a value ≤ 60 arc seconds. The motor and sensory success rates as well as the surgical complications were compared. RESULTS Of the 73 patients, 36 were allocated to group 1 and 37 to group 2. At 2 years after surgery, 13 of the 36 (36.1%) patients in group 1 and 12 of the 37 (32.4%) in group 2 had achieved successful alignment; 32 (88.9%) patients in group 1 and 35 (94.6%) in group 2 achieved normal stereoacuity. No significant differences in the motor or sensory success rates were observed between the two groups (p = 0.46 and 0.32, respectively). CONCLUSIONS The surgical success rates for intermittent exotropia were comparable between the patients operated upon before 4 years of age and those operated upon after 4 years of age. The incidence of postsurgical complications was low and not significantly different between the two study groups.
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Affiliation(s)
- Hyeshin Jeon
- a Department of Ophthalmology , Pusan National University Hospital , Busan , South Korea.,b Medical Research Institute, Pusan National University Hospital , Busan , South Korea
| | - Jaeho Jung
- c Department of Ophthalmology , Pusan National University Yangsan Hospital , Yangsan , South Korea
| | - Heeyoung Choi
- a Department of Ophthalmology , Pusan National University Hospital , Busan , South Korea.,b Medical Research Institute, Pusan National University Hospital , Busan , South Korea
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Choi HY, Sohn YM, Seo M. Comparison of 3D and 2D shear-wave elastography for differentiating benign and malignant breast masses: focus on the diagnostic performance. Clin Radiol 2017; 72:878-886. [PMID: 28526455 DOI: 10.1016/j.crad.2017.04.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 03/23/2017] [Accepted: 04/10/2017] [Indexed: 12/13/2022]
Abstract
AIM To evaluate the diagnostic performance of three-dimensional (3D) image shear-wave elastography (SWE) for differentiating benign from malignant breast masses compared to two-dimensional (2D) SWE and B-mode ultrasound (US). MATERIALS AND METHODS This study consisted of 205 breast lesions from 199 patients who underwent B-mode US and SWE before biopsy from January 2014 to March 2016. Quantitative elasticity values (maximum and mean elasticity, Emax and Emean) obtained from 2D and 3D SWE (axial, sagittal, and coronal images) were reviewed retrospectively, in addition to the histopathological findings including immunohistochemistry profiles (luminal A, luminal B, human epidermal growth factor receptor 2 (HER2)-enriched, and triple-negative breast cancer) in cases of malignancy. Histopathological findings were regarded as the reference standard. The diagnostic performance of each data set was evaluated using the area under the receiver operating characteristic (ROC) curve (AUC) analysis to compare sensitivity and specificity. RESULTS Among 205 lesions, 105 (51.22%) were malignant and 100 (48.78%) were benign. Compared to benign masses, malignant masses had higher values of Emax and Emean on both 2D and 3D SWE, the differences of which were statistically significant (p<0.001). The AUCs of 2D, 3D axial, and sagittal SWE were significantly higher than that of 3D coronal SWE (p<0.05). In addition, the sensitivities of axial, sagittal, and coronal 3D SWE were all higher than that of 2D SWE for Emean (81.9%, 87.6%, and 89.5% versus 70.5%, respectively, p<0.05). Conversely, the specificity of 2D and 3D axial SWE was higher than that of 3D sagittal and coronal SWE (Emax, 84%, 83% versus 76%, 73%; Emean, 85%, 81% versus 68%, 50%, respectively, p<0.05). We also assessed changes in Breast Imaging-Reporting and Data System (BI-RADS) category 3 and category 4a lesions by adding each of the parameters for 2D and 3D SWE in B-mode US. The specificity, PPV, and accuracy of combined 2D or combined 3D SWE with B-mode US was statistically higher than that of B-mode US alone for differentiating benign and malignant lesions (p<0.05). CONCLUSIONS Among SWE images, 2D SWE, and 3D SWE axial and sagittal images exhibited superior diagnostic performance compared to 3D coronal images. Addition of 3D SWE images to B-mode US improved the diagnostic performance for distinguishing benign from malignant masses.
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Affiliation(s)
- H Y Choi
- Department of Radiology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University, Seoul, South Korea
| | - Y-M Sohn
- Department of Radiology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University, Seoul, South Korea.
| | - M Seo
- Department of Radiology, Kyung Hee University Hospital, College of Medicine, Kyung Hee University, Seoul, South Korea
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Ryu S, Park S, Lee JH, Kim YR, Na HS, Lim HS, Choi HY, Hwang IY, Lee JG, Park ZW, Oh WY, Kim JM, Choi SE. A Study on CYP2C19 and CYP2D6 Polymorphic Effects on Pharmacokinetics and Pharmacodynamics of Amitriptyline in Healthy Koreans. Clin Transl Sci 2017; 10:93-101. [PMID: 28296334 PMCID: PMC5355968 DOI: 10.1111/cts.12451] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 01/13/2017] [Indexed: 12/16/2022] Open
Abstract
We performed a double-blinded, genotype-based stratification study to explore the pharmacokinetics and pharmacodynamics of amitriptyline according to CYP2C19 and CYP2D6 genotype in Korean subjects. Twenty-four healthy adults were grouped by genotype of CYP2C19 and CYP2D6. After a single dose of 25 mg of amitriptyline, blood samples were collected and anticholinergic effects were measured. The extent of N-demethylation of amitriptyline significantly decreased in subjects carrying two nonfunctional alleles of CYP2C19. The extent of hydroxylation of amitriptyline or nortriptyline was significantly reduced in subjects carrying two CYP2D6 decreased functional alleles compared with those with no or one decreased functional allele. The overall metabolic pathway of amitriptyline was more likely to be dominated by CYP2C19 than CYP2D6. The gene variations of CYP2C19 and CYP2D6 did not change the pharmacodynamic effect. The findings of this study will provide useful information on individualized drug treatment with amitriptyline considering both CYP2D6 and CYP2C19 gene variations.
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Affiliation(s)
- S Ryu
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - S Park
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - J H Lee
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - Y R Kim
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - H S Na
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - H S Lim
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Republic of Korea
| | - H Y Choi
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, University of Ulsan, Asan Medical Center, Republic of Korea
| | - I Y Hwang
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - J G Lee
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - Z W Park
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - W Y Oh
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - J M Kim
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
| | - S E Choi
- Clinical Research Division, National Institute of Food and Drug Safety, Ministry of Food and Drug Safety, Republic of Korea
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Jay R, Jung SB, Park BH, Jeong BC, Seo SI, Jeon SS, Lee HM, Choi HY, Jeon HG. Compensatory structural and functional adaptation after radical nephrectomy for renal cell carcinoma according to preoperative stage of chronic kidney disease. Choi DK, Jung SB, Park BH, Jeong BC, Seo SI, Jeon SS, Lee HM, Choi HY, Jeon HG.J Urol. 2015 Oct;194(4):910-5. [Epub 2015 Apr 28]. doi: 10.1016/j.juro.2015.04.093. Urol Oncol 2017; 35:118-119. [PMID: 28159494 DOI: 10.1016/j.urolonc.2016.12.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE We investigated structural hypertrophy and functional hyperfiltration as compensatory adaptations after radical nephrectomy in patients with renal cell carcinoma according to the preoperative chronic kidney disease stage. MATERIALS AND METHODS We retrospectively identified 543 patients who underwent radical nephrectomy for renal cell carcinoma between 1997 and 2012. Patients were classified according to preoperative glomerular filtration rate as no chronic kidney disease-glomerular filtration rate 90ml/min/1.73m2 or greater (230, 42.4%), chronic kidney disease stage II-glomerular filtration rate 60 to less than 90ml/min/1.73m2 (227, 41.8%), and chronic kidney disease stage III-glomerular filtration rate 30 to less than 60ml/min/1.73m2 (86, 15.8%). Computerized tomography performed within 2 months before surgery and 1 year after surgery was used to assess functional renal volume for measuring the degree of hypertrophy of the remnant kidney, and the preoperative and postoperative glomerular filtration rate per unit volume of functional renal volume was used to calculate the degree of hyperfiltration. RESULTS Among all patients (mean age = 56.0y) mean preoperative glomerular filtration rate, functional renal volume, and glomerular filtration rate/functional renal volume were 83.2ml/min/1.73m2, 340.6cm3, and 0.25ml/min/1.73m2/cm3, respectively. The percent reduction in glomerular filtration rate was statistically significant according to chronic kidney disease stage (no chronic kidney disease 31.2% vs. stage II 26.5% vs. stage III 12.8%, P<0.001). However, the degree of hypertrophic functional renal volume in the remnant kidney was not statistically significant (no chronic kidney disease 18.5% vs. stage II 17.3% vs. stage III 16.5%, P = 0.250). The change in glomerular filtration rate/functional renal volume was statistically significant (no chronic kidney disease 18.5% vs. stage II 20.1% vs. stage III 45.9%, P<0.001). Factors that increased glomerular filtration rate/functional renal volume above the mean value were body mass index (P = 0.012), diabetes mellitus (P = 0.023), hypertension (P = 0.015), and chronic kidney disease stage (P<0.001). CONCLUSIONS Patients with a lower preoperative glomerular filtration rate had a smaller reduction in postoperative renal function than those with a higher preoperative glomerular filtration rate due to greater degrees of functional hyperfiltration.
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Saha SK, Choi HY, Kim BW, Dayem AA, Yang GM, Kim KS, Yin YF, Cho SG. KRT19 directly interacts with β-catenin/RAC1 complex to regulate NUMB-dependent NOTCH signaling pathway and breast cancer properties. Oncogene 2017; 36:332-349. [PMID: 27345400 PMCID: PMC5270332 DOI: 10.1038/onc.2016.221] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 04/19/2016] [Accepted: 05/15/2016] [Indexed: 12/21/2022]
Abstract
Studies have reported that interactions between keratins (KRTs) and other proteins initiate signaling cascades that regulate cell migration, invasion, and metastasis. In the current study, we found that expression of KRT19 was specifically high in breast cancers and significantly correlated with their invasiveness. Moreover, knockdown of KRT19 led to increased proliferation, migration, invasion, drug resistance, and sphere formation in breast cancer cells via an upregulated NOTCH signaling pathway. This was owing to reduced expression of NUMB, an inhibitory protein of the NOTCH signaling pathway. In addition, we found that KRT19 interacts with β-catenin/RAC1 complex and enhances the nuclear translocation of β-catenin. Concordantly, knockdown of KRT19 suppressed the nuclear translocation of β-catenin as well as β-catenin-mediated NUMB expression. Furthermore, modulation of KRT19-mediated regulation of NUMB and NOTCH1 expression led to the repression of the cancer stem cell properties of breast cancer patient-derived CD133high/CXCR4high/ALDH1high cancer stem-like cells (CSLCs), which showed very low KRT19 and high NOTCH1 expression. Taken together, our study suggests a novel function for KRT19 in the regulation of nuclear import of the β-catenin/RAC1 complex, thus modulating the NUMB-dependent NOTCH signaling pathway in breast cancers and CSLCs, which might bear potential clinical implications for cancer or CSLC treatment.
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Affiliation(s)
- S K Saha
- Department of Animal Biotechnology, Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul, Republic of Korea
| | - H Y Choi
- Department of Animal Biotechnology, Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul, Republic of Korea
| | - B W Kim
- Department of Animal Biotechnology, Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul, Republic of Korea
| | - A A Dayem
- Department of Animal Biotechnology, Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul, Republic of Korea
| | - G-M Yang
- Department of Animal Biotechnology, Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul, Republic of Korea
| | - K S Kim
- Department of Animal Biotechnology, Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul, Republic of Korea
| | - Y F Yin
- Department of Animal Biotechnology, Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul, Republic of Korea
| | - S-G Cho
- Department of Animal Biotechnology, Stem Cell & Regenerative Biotechnology and Incurable Disease Animal Model & Stem Cell Institute (IDASI), Konkuk University, Seoul, Republic of Korea
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Choi H, Kim H, Jeon H. Abnormal medial rectus insertion presenting exotropia: a case report and review of the literature. Int J Ophthalmol 2016; 9:1852-1854. [PMID: 28003993 DOI: 10.18240/ijo.2016.12.27] [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] [Received: 02/05/2016] [Accepted: 05/20/2016] [Indexed: 11/23/2022] Open
Affiliation(s)
- Heeyoung Choi
- Department of Ophthalmology, Pusan National University Hospital, Busan 602-739, Korea; Medical Research Institute, Pusan National University Hospital, Busan 602-739, Korea
| | - Hyunkyu Kim
- Department of Ophthalmology, Pusan National University Hospital, Busan 602-739, Korea
| | - Hyeshin Jeon
- Department of Ophthalmology, Pusan National University Hospital, Busan 602-739, Korea; Medical Research Institute, Pusan National University Hospital, Busan 602-739, Korea
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Choi HY, Choi S, Kim YH, Lim HS. Population Pharmacokinetic and Pharmacodynamic Modeling Analysis of GCC-4401C, a Novel Direct Factor Xa Inhibitor, in Healthy Volunteers. CPT Pharmacometrics Syst Pharmacol 2016; 5:532-543. [PMID: 27511836 PMCID: PMC5080649 DOI: 10.1002/psp4.12103] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 06/06/2016] [Accepted: 07/07/2016] [Indexed: 01/02/2023]
Abstract
GCC‐4401C, an orally active direct factor Xa inhibitor that is similar to rivaroxaban, is currently under development for venous thromboembolic disease (VTE). The purpose of this study was to characterize the pharmacokinetics (PKs) and pharmacodynamics (PDs) of GCC‐4401C by population modeling analysis and to predict proper dosage regimens compared to rivaroxaban using data from two phase I clinical studies. Plasma GCC‐4401C concentrations over time were best described by a two‐compartment linear model and body weight was associated with central volume of distribution. Relevant PD markers generally changed in a dose‐dependent manner and were described well with sigmoid, simple maximum effect, or linear models. GCC‐4401C was absorbed more rapidly than rivaroxaban. Comparisons based on simulations of PD marker changes over time suggest that 20 mg and 40 mg of GCC‐4401C administered under fasted status are comparable to 10 mg and 20 mg of rivaroxaban under fed status.
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Affiliation(s)
- H Y Choi
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Ulsan University College of Medicine, Republic of Korea
| | - S Choi
- Research Center, Green Cross Corporation, Yongin, Republic of Korea
| | - Y H Kim
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Ulsan University College of Medicine, Republic of Korea
| | - H S Lim
- Department of Clinical Pharmacology and Therapeutics, Asan Medical Center, Ulsan University College of Medicine, Republic of Korea.
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Kim SC, Lee KH, Choi HY, Noble J, Lee K, Jeon HJ. On-scene factors that predict severe injury of patients involved in frontal crashes of passenger cars. Eur J Trauma Emerg Surg 2016; 43:663-670. [PMID: 27469515 DOI: 10.1007/s00068-016-0714-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 07/19/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE We sought to determine on-scene factors that predict severe injury to the occupants of passenger cars involved in frontal crashes. METHODS From January 2011 to December 2014, we collected data from patients who were taken to two emergency centres following a frontal motor vehicle crash. Binomial logistic regression was used to model the effects of occupant characteristics (sex, age, body mass index), vehicle damage (according to the collision deformation classification code), and safety devices on severe injuries (injury severity score >15). RESULTS Of 344 subjects, 75 (21.8 %) had severe injuries. Sex, seat belt status, extent of vertical crash, intrusion, and deformation extent (DE) were significantly different between severe and non-severe injuries. After adjusting for confounders, non-use of seat belt tripled the odds of severe injury [odds ratio (OR) 2.7, 95 % confidence interval (CI) 1.461-5.105]. DE ≥4 and intrusion increased the risk of severe injury (OR 2.4, 95 % CI 1.120-5.204 and OR 5.2, 95 % CI 2.525-10.780, respectively). A combination model to predict severe injury using intrusion, seat belt use, and DE ≥4 demonstrated 56.0 % sensitivity, 88.9 % specificity, and 58.4 % positive predictive value (AUC = 0.781, 95 % CI 0.734-0.824). CONCLUSIONS For passenger cars involved in a frontal crash, intrusion, unbelted status, and DE ≥4 are good predictors of severe injury. Sequential criteria using vehicle DE, seat belt use, and intrusion can be used by first responders to triage patients involved in a frontal collision.
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Affiliation(s)
- S C Kim
- Department of Emergency Medicine, Konkuk University School of Medicine Chungju Hospital, 82 Gukwon-daero, Chungju, South Korea
| | - K H Lee
- Department of Emergency Medicine, Yonsei University Wonju College of Medicine, 20 Ilsan-ro, Wonju, South Korea.
| | - H Y Choi
- Department of Mechanical System Design, Hongik University College of Engineering, 94 Wausan-ro, Mapo-gu, Seoul, South Korea
| | - J Noble
- Department of Pediatric Emergency Medicine, Children's Hospital of Michigan, 3901 Beaubien St, Detroit, MI, USA
| | - K Lee
- Department of Preventive Medicine, Dongguk University Kyeongju Hospital, 1090-1 Seokjang-dong, Gyeongju, South Korea
| | - H J Jeon
- Department of Emergency Medicine, Konkuk University School of Medicine Chungju Hospital, 82 Gukwon-daero, Chungju, South Korea
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Jeon H, Jung J, Kim H, Yeom JA, Choi H. Strabismus in children with white matter damage of immaturity: MRI correlation. Br J Ophthalmol 2016; 101:467-471. [DOI: 10.1136/bjophthalmol-2016-308769] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/22/2016] [Accepted: 06/26/2016] [Indexed: 11/04/2022]
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Oh JE, Lee HJ, Choi YW, Choi HY, Byun JY. Metal allergy in eyelid dermatitis and the evaluation of metal contents in eye shadows. J Eur Acad Dermatol Venereol 2016; 30:1518-21. [PMID: 27004926 DOI: 10.1111/jdv.13646] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 02/04/2016] [Indexed: 11/30/2022]
Abstract
BACKGROUND Allergic contact dermatitis is a common diagnosis in eyelid dermatitis. Sensitization to metals is prevalent in eyelid dermatitis and colour cosmetic products are frequently suspected as the source of metal exposure. OBJECTIVE To investigate the contact allergens for eyelid dermatitis and to assess metal contents in eye shadow products. METHODS Data were collected in the department of dermatology of Ewha Womans University hospital from December 1998 to February 2014. A total of 983 patients were patch tested during the period and 67 patients had eyelid dermatitis among them. To examine metal elements in colour cosmetic products for eyes, randomly selected 10 eye shadows were analysed. RESULTS Frequent allergens were metals, thiomersal and phenylenediamine in patients with eyelid dermatitis. The sensitization rates of individual allergens were not significantly different between patients with eyelid dermatitis and without eyelid dermatitis. All 10 eye shadow products contained more than 5 ppm of at least one element, nickel, cobalt or chromium. CONCLUSION Metals were top-rank allergens in patients with eyelid dermatitis as in the remaining patients patch tested. The eye shadow products contained significant amount of nickel, cobalt or chromium to elicit allergic reactions.
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Affiliation(s)
- J E Oh
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
| | - H J Lee
- Department of Dermatology, Ewha Womans University School of Medicine, Seoul, Korea
| | - Y W Choi
- Department of Dermatology, Ewha Womans University School of Medicine, Seoul, Korea
| | - H Y Choi
- Department of Dermatology, Ewha Womans University School of Medicine, Seoul, Korea
| | - J Y Byun
- Department of Dermatology, Ewha Womans University School of Medicine, Seoul, Korea
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Kim KA, Ki M, Choi HY, Kim BH, Jang ES, Jeong SH. Population-based epidemiology of primary biliary cirrhosis in South Korea. Aliment Pharmacol Ther 2016; 43:154-62. [PMID: 26526639 DOI: 10.1111/apt.13448] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [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] [Received: 08/03/2015] [Revised: 08/25/2015] [Accepted: 10/06/2015] [Indexed: 12/20/2022]
Abstract
BACKGROUND As a rare disease, only a few population-based epidemiology studies of primary biliary cirrhosis (PBC) have been reported. AIMS To elucidate the nationwide prevalence, incidence, complications, fatality and direct medical costs of PBC in South Korea. METHODS The nationwide Health Insurance Review and Assessment Service claims data and Rare Intractable Disease registration data on PBC, identified with the International Classification of Diseases (ICD) 10 code of K74.3, were obtained from 2009 to 2013. Age- and gender-specific prevalence and incidence rates of PBC were calculated, and data on complications, comorbidities, prescribed drugs, therapeutic procedures and direct medical costs were analysed. RESULTS A total of 2824 patients over 20 years old with PBC were identified in 2009-2013 (female-to-male ratio 6.2, median age 57 years old). The average age- and sex-adjusted incidence from 2011 to 2013 was 8.57 per million per year, and the average age- and sex-adjusted prevalence from 2009 to 2013 was 47.50 per million population. About 10% of patients presented with complications such as ascites (10.3%), variceal bleeding (5.8%) and/or hepatocellular carcinoma (HCC) (1.3%). Liver transplantation was undertaken in 71 patients (2.5%) for 5 years. Case fatality was 2.2% and the transplantation-free survival was 95.4% for 5 years. CONCLUSIONS This is the first report on the nationwide epidemiology of primary biliary cirrhosis in South Korea, demonstrating lower incidence and prevalence rates than those of Western countries, but a considerable disease burden, representing at least 10% were complicated with decompensated cirrhosis or hepatocellular carcinoma requiring liver transplantation.
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Affiliation(s)
- K-A Kim
- Department of Internal Medicine, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - M Ki
- Department of Cancer Control and Policy, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Korea
| | - H Y Choi
- Department of Cancer Control and Policy, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang, Korea
| | - B H Kim
- Center for Liver Cancer, National Cancer Center, Goyang, Korea
| | - E S Jang
- Departments of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - S-H Jeong
- Departments of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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Kim W, Choi HY, Jang YS, Kang GH. Comparison of efficiency between i-gel blind intubation and i-gel-assisted bronchoscopic intubation during cardiopulmonary resuscitation: randomized simulation study. Intensive Care Med Exp 2015. [PMCID: PMC4796589 DOI: 10.1186/2197-425x-3-s1-a547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Choi HY, Jung J, Name SB, Lee JE, Byon IS, Seo JH. The effects of vascular endothelial growth factor (VEGF) on human orbital preadipocyte. Orbit 2015; 35:6-10. [PMID: 26588326 DOI: 10.3109/01676830.2015.1082606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 08/08/2015] [Indexed: 06/05/2023]
Abstract
PURPOSE To investigate the presence of the Vascular Endothelial Growth Factor (VEGF) and its receptor (VEGFR) in human orbital preadipocytes, and to evaluate the effect of VEGF on human orbital preadipocyte differentiation and adipogenesis in vitro. RESULTS Four isoforms of VEGF (VEGF121, 155, 189, and 206), VEGFR-1, VEGF-2, and neuropilin-1 were expressed in human orbital preadipocytes. Treatment with 100 ng/ml VEGF induced higher expressions of C/EBPα and LPL than the non-treated control (p = 0.03 and p = 0.01) or treatment with 50ng/ml (p = 0.04 for both). At both concentrations VEGF enhanced the accumulation of intra-cytoplasmic lipid versus the control, and treatment with 100 ng/ml VEGF induced more lipid accumulation than treatment with 50 ng/ml VEGF (p = 0.03). CONCLUSIONS VEGF and VEGFR were observed in human orbital preadipocytes, and exogenous VEGF enhanced adipogenesis in these cells. These results suggest that VEGF plays a role as an autocrine or paracrine growth factor during human orbital preadipocyte differentiation.
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Affiliation(s)
- Hee-young Choi
- a Department of Ophthalmology , Pusan National University Hospital , Busan , South Korea
- b Medical Research Institute , Pusan National University , Busan , South Korea
| | - Jaeho Jung
- c Department of Ophthalmology , Pusan National University Yangsan Hospital , Yangsan , South Korea
- d Research Institute for Convergence of Biomedical Science and Technology , Pusan National University Yangsan Hospital , Yangsan , South Korea
| | - Su-bong Name
- e Department of Plastic and Reconstructive Surgery , Pusan National University Yangsan Hospital , Yangsan , South Korea
| | - Ji-eun Lee
- c Department of Ophthalmology , Pusan National University Yangsan Hospital , Yangsan , South Korea
| | - Ik-soo Byon
- c Department of Ophthalmology , Pusan National University Yangsan Hospital , Yangsan , South Korea
| | - Je-hyun Seo
- c Department of Ophthalmology , Pusan National University Yangsan Hospital , Yangsan , South Korea
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Choi HY, Kim WJ. Effect of thermal treatment on the bio-corrosion and mechanical properties of ultrafine-grained ZK60 magnesium alloy. J Mech Behav Biomed Mater 2015; 51:291-301. [PMID: 26275491 DOI: 10.1016/j.jmbbm.2015.07.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 07/17/2015] [Accepted: 07/18/2015] [Indexed: 11/17/2022]
Affiliation(s)
- H Y Choi
- Department of Materials Science and Engineering, Hongik University, Mapo-gu, Sangsu-dong 72-1, Seoul 121-791, South Korea
| | - W J Kim
- Department of Materials Science and Engineering, Hongik University, Mapo-gu, Sangsu-dong 72-1, Seoul 121-791, South Korea.
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Kim MK, Moon JY, Choi HY, Oh SH, Lee N, Choi YJ. Investigation of the magnetic properties in double perovskite R2CoMnO6 single crystals (R = rare earth: La to Lu). J Phys Condens Matter 2015; 27:426002. [PMID: 26442994 DOI: 10.1088/0953-8984/27/42/426002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We have successfully synthesized the series of the double-perovskite R2CoMnO6 (R = rare earth: La to Lu) single crystals and have investigated their magnetic properties. The ferromagnetic order of Co(2+)/Mn(4+) spins emerges mainly along the c axis. Upon decreasing the size of rare earth ion, the magnetic transition temperature decreases linearly from 204 K for La2CoMnO6 to 48 K for Lu2CoMnO6, along with the enhancement of monoclinic distortion. The temperature and magnetic-field dependences of magnetization reveal the various magnetic characteristics such as the metamagnetic transition in R = Eu, the isotropic nature of rare earth moment in R = Gd, and the reversal of magnetic anisotropy in R = Tb and Dy. Our results offer comprehensive information for understanding the roles of mixed-valent magnetic ions and rare earth magnetic moments on the magnetic properties.
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Affiliation(s)
- M K Kim
- Department of Physics and IPAP, Yonsei University, Seoul 120-749, Korea
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Choi HY, Kim SM, Jang M, Yun BL, Ahn HS, Park SY, Kim SW, Kang EY. Nodular Fasciitis of the Breast: A Case and Literature Review. Ultraschall Med 2015; 36:290-291. [PMID: 24854130 DOI: 10.1055/s-0034-1366340] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Nodular fasciitis is a benign fibroblastic proliferation in soft tissue that is most commonly found in the upper extremities, trunk, head, and neck region. Its occurrence in the breast has been rarely reported. The most characteristic features are the sudden appearance and rapid growth of a palpable lesion. Nodular fasciitis can clinically, radiologically, and histopathologically mimic a breast carcinoma. We present a case of nodular fasciitis of the breast and a review of the relevant literature.
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Woo JY, Suhng EA, Choi YW, Choi HY, Byun JY. Cystic sebaceous tumour with no evidence of Muir-Torre syndrome. J Eur Acad Dermatol Venereol 2015; 30:1038-9. [PMID: 25753622 DOI: 10.1111/jdv.13093] [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: 12/01/2022]
Affiliation(s)
- J Y Woo
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
| | - E A Suhng
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
| | - Y W Choi
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
| | - H Y Choi
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
| | - J Y Byun
- Department of Dermatology, School of Medicine, Ewha Womans University, Seoul, Korea
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Yoo HJ, Hwang SY, Cho GJ, Hong HC, Choi HY, Hwang TG, Kim SM, Blüher M, Youn BS, Baik SH, Choi KM. Association of glypican-4 with body fat distribution, insulin resistance, and nonalcoholic fatty liver disease. J Clin Endocrinol Metab 2013; 98:2897-901. [PMID: 23633195 DOI: 10.1210/jc.2012-4297] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
CONTEXT AND OBJECTIVE Glypican-4 was identified as a novel adipokine capable of enhancing insulin signaling and modulating adipocyte differentiation. We investigated associations between glypican-4 and body composition, insulin resistance, arterial stiffness, and nonalcoholic fatty liver disease (NAFLD) in nondiabetic Asian subjects. DESIGN AND PARTICIPANTS We analyzed baseline cross-sectional data from the Korean Sarcopenic Obesity Study, an ongoing prospective cohort study. NAFLD was diagnosed by unenhanced computed tomography using the liver attenuation index. We also examined the effects of a 3-month combined aerobic and resistance exercise program on glypican-4 levels and cardiometabolic risk factors. RESULTS Circulating glypican-4 levels were higher in men than in women (1.83 [1.19, 2.78] ng/mL vs 1.17 [0.66, 2.00] ng/mL, P < .001) and had a significant positive relationship with the waist-to-hip ratio (WHR) (r = 0.20, P = .014) and the ratio of visceral to sc fat area (r = 0.30, P < .001). Furthermore, glypican-4 levels in women were correlated with cardiometabolic risk factors, including insulin resistance and arterial stiffness, and were independently associated with NAFLD by multiple logistic regression analysis (P = .017, R² = 0.33). The 3-month combined exercise training program significantly improved several cardiometabolic parameters and reduced retinol binding protein-4 levels. Changes in glypican-4 levels after the exercise program were significantly different between subjects with an increased WHR compared with those with a decreased WHR (P = .034). CONCLUSION A gender-based difference in circulating glypican-4 levels was apparent as these were increased in women with NAFLD and related to body fat distribution, insulin resistance, and arterial stiffness.
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Affiliation(s)
- H J Yoo
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University, Seoul 152-703, Korea
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Park HJ, Choi YW, Kim SH, Shin MS, Lee SW, Oh MK, Choi HY. Change in cytokines in patients with warts after contact immunotherapy with squaric acid dibutylester. Clin Exp Dermatol 2013; 38:775-81. [PMID: 23611147 DOI: 10.1111/ced.12075] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND A wart is a skin lesion caused by infection with human papillomavirus (HPV). Contact immunotherapy is one of the many therapeutic options that have been used to treat warts; however, the effectiveness of contact immunotherapy differs from patient to patient, and the cause of this variation in clinical response is unclear. AIM To assess cytokine changes in patients after contact immunotherapy with squaric acid dibutylester (SADBE). METHODS In total, 21 patients with warts and 9 healthy control subjects were enrolled in the study. The frequencies of CD3+ T cells expressing interleukin (IL)-4, IL-10, IL-12, tumour necrosis factor-α and interferon-γ were measured by flow cytometry analysis of peripheral blood at baseline in both patients and controls, and after SADBE treatment in patients. RESULTS Lower expression of IL-4 and higher expression of IL-12 in CD3+ T cells were found in patients compared with controls. The percentage of CD3+/IL-4+ T cells significantly increased after contact immunotherapy in all responders, but was significantly higher in those with an excellent response, who also had a significantly higher percentage of CD3+/IL-10+ T cells. The patients with an excellent response also had a significant decrease in the percentage of CD3+/IL-12+ T cells, and the percentage of CD3+/IL-4+ T cells normalized. CONCLUSIONS Response to contact immunotherapy can vary depending on the types of cytokine changes produced by treatment. An excessive shift to a Th2 pattern and increased IL-10 production after contact immunotherapy may hinder clearance of HPV.
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Affiliation(s)
- H J Park
- Department of Dermatology, Ilsanpaik Hospital, Inje University School of Medicine, Goyang, South Korea
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Choi Y, Park B, Kim K, Jeong BC, Seo SI, Jeon SS, Choi HY, Lee JE, Lee HM. Erythrocyte sedimentation rate and anaemia are independent predictors of survival in patients with clear cell renal cell carcinoma. Br J Cancer 2013; 108:387-94. [PMID: 23299540 PMCID: PMC3566817 DOI: 10.1038/bjc.2012.565] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background: The 1997 international consensus conference on renal cell cancer (RCC) prognosis suggested erythrocyte sedimentation rate (ESR), alkaline phosphatase (ALP), and anaemia as prognostic biomarkers, but most studies reviewed were limited by small sample sizes. Methods: The Cox proportional hazards model was used to evaluate whether ESR, ALP, haemoglobin (Hb), and haematocrit (Hct) could predict survival outcomes in 1307 patients with clear cell RCC (ccRCC) who underwent nephrectomy during 1994–2008. Results: During a median follow-up of 43 months, we found that the patients with preoperative high levels of ESR, had a 2.10-fold (95% confidence interval (CI): 1.21–3.67) greater risk of dying from RCC compared with patients with low levels (normal range). Patients with preoperative anaemia, assessed by Hb and Hct, had a 3.11-fold (95% CI: 1.17–8.25) and 6.20-fold (95% CI: 2.30–16.72) greater risk of dying from other illnesses, respectively, compared with patients without anaemia. ALP levels were not associated with ccRCC patients' survival. These associations for ESR and anaemia were more pronounced in patients with body mass index (BMI) <25 compared with patients with BMI ⩾25 kg m−2. Conclusion: Preoperative high ESR, but not ALP, was a significant predictor for cancer-specific survival among ccRCC patients. Anaemia increases the risk of death from other illness.
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Affiliation(s)
- Y Choi
- Women's Health Research Institute, Sookmyung Women's University, Seoul, Republic of Korea
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Lee JY, Chang JS, Lee SH, Ham WS, Cho HJ, Yoo TK, Lee KS, Kim TH, Moon HS, Choi HY, Lee SW. Efficacy of vasectomy reversal according to patency for the surgical treatment of postvasectomy pain syndrome. Int J Impot Res 2012; 24:202-5. [PMID: 22622333 DOI: 10.1038/ijir.2012.17] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This study was conducted to assess outcomes (according to patency) of vasectomy reversal (VR) in qualified patients with postvasectomy pain syndrome (PVPS). A total of 32 patients with PVPS undergoing VR between January 2000 and May 2010 were examined retrospectively. Of these, 68.8% (22/32) completed a study questionnaire, either onsite at the outpatient clinic or via telephone interview. Preoperative clinical findings, preoperative and postoperative visual analogue scale (VAS) pain scores, patency and pregnancy rate and overall patient satisfaction were analyzed. For the latter, a four-point rating of (1) cure, (2) improvement, (3) no change or (4) recurrence was used. The mean age was 45.09±4.42 years and the mean period of follow-up was 3.22 years (0.74-7.41). Patency rates were 68.2% (15/22) and pregnancy rates were 36.4% (8/22). The mean VAS was 6.64±1.00 preoperatively and 1.14±0.71 postoperatively (P<0.001). The difference in the mean preoperative and postoperative VAS was 6.00±1.25 (4-8) in the patency group and 4.43±0.98 (3-6) in the no patency group (P=0.011). A significant difference in procedural satisfaction with surgical outcome was observed between patency and no patency groups (P=0.014). In conclusion, in PVPS patients requiring VR, a significant difference was observed between the patency and no patency groups in terms of pain reduction and the degree of patient procedural satisfaction.
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Affiliation(s)
- J Y Lee
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, and Eulji Hospital, Seoul, Korea
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Bae K, Na JB, Choi DS, Cho JM, Choi HC, Jeon KN, Park MJ, Choi HY, Kim JE, Chung SH. Contrast-enhanced MR cholangiography: comparison of Gd-EOB-DTPA and Mn-DPDP in healthy volunteers. Br J Radiol 2012; 85:1250-4. [PMID: 22553292 DOI: 10.1259/bjr/22238911] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE The purpose of this study was to compare the biliary enhancement dynamics of gadolinium-ethoxybenzyl-diethylenetriamine-pentaacetic-acid (Gd-EOB-DTPA) and mangafodipir trisodium (Mn-DPDP) for contrast-enhanced MR cholangiography (MRC) in healthy subjects. METHODS 15 healthy volunteers underwent MRI at 1.5 T with volumetric interpolated breath-hold examination sequence. Each volunteer was scanned once for each contrast agent. The signal-to-noise ratio (SNR) of the liver parenchyma and common hepatic duct (CHD) and the contrast-to-noise ratio (CNR) of CHD to liver parenchyma were evaluated and compared before and at several time points (5, 15, 30, 45, 60, 90, and 120 min) after injection of each agent. RESULTS SNR was significantly higher for Gd-EOB-DTPA than for Mn-DPDP in liver parenchyma after 5 min and in CHD after 15 min (p<0.05). CNR of CHD to liver parenchyma using Gd-EOB-DTPA showed an initial decrease at 5 min post-injection followed by a steep increase to a peak at 15 min post-injection. CNR using Mn-DPDP showed a steady increase to a peak at 15 min post-injection without an initial decrease. At 15 min, the value of CNR was significantly higher for Gd-EOB-DTPA than for Mn-DPDP (p<0.05). CONCLUSION For both contrast agents, CNR reached a peak at 15 min after contrast injection. At this time point, CNR of Gd-EOB-DTPA was significantly higher than that of Mn-DPDP. Therefore, Gd-EOB-DTPA may provide better contrast-enhanced MRC than Mn-DPDP at 15 min after contrast administration.
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Affiliation(s)
- K Bae
- Department of Radiology, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Republic of Korea
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Yang SJ, Hwang SY, Choi HY, Yoo HJ, Seo JA, Kim SG, Kim NH, Baik SH, Choi DS, Choi KM. Serum selenoprotein P levels in patients with type 2 diabetes and prediabetes: implications for insulin resistance, inflammation, and atherosclerosis. J Clin Endocrinol Metab 2011; 96:E1325-9. [PMID: 21677040 DOI: 10.1210/jc.2011-0620] [Citation(s) in RCA: 135] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT AND OBJECTIVE The dysregulation of hepatokines may be associated with the pathogenesis of insulin resistance and type 2 diabetes. A recent study has suggested that selenoprotein P (SeP), a novel hepatokine, may play a role in the regulation of glucose metabolism and insulin sensitivity. We examined the relationship between circulating SeP levels and clinical parameters associated with insulin resistance in humans. PARTICIPANTS AND METHODS We compared serum SeP concentrations in 100 subjects with diverse glucose tolerance statuses. Furthermore, we evaluated the relationship between SeP and cardiometabolic risk factors including insulin resistance, high-sensitivity C-reactive protein, and carotid intima-media thickness. RESULTS Serum SeP concentrations were significantly higher in patients with type 2 diabetes or prediabetes than those with normal glucose tolerance (all P < 0.01) and decreased in a stepwise manner [1032.4 (495.9-2149.4) vs. 867.3 (516.3-1582.7) vs. 362.0 (252.5-694.5), P = 0.004]. In addition, overweight and obese subjects had significantly increased SeP levels compared with lean subjects (P = 0.002). Spearman's partial correlation analysis adjusted for age and gender showed a significant relationship between SeP and cardiometabolic factors including body mass index, waist circumference, systolic blood pressure, triglycerides, glucose, hemoglobin A1c, aspartate aminotransferase, and insulin resistance. Furthermore, in multiple regression analyses, SeP showed an independent association with carotid intima-media thickness as well as high-sensitivity C-reactive protein, even after adjustment for other confounding factors. CONCLUSIONS Circulating SeP concentrations were elevated in patients with glucose metabolism dysregulation and were related to various cardiometabolic parameters including insulin resistance, inflammation, and atherosclerosis.
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Affiliation(s)
- S J Yang
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Korea University Guro Hospital, Seoul 152-050, Korea
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Kim YD, Lee JH, Jung YH, Cha MJ, Choi HY, Nam CM, Yang JH, Cho HJ, Nam HS, Lee KY, Heo JH. Effect of warfarin withdrawal on thrombolytic treatment in patients with ischaemic stroke. Eur J Neurol 2011; 18:1165-70. [PMID: 21314856 DOI: 10.1111/j.1468-1331.2011.03363.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND PURPOSE Abruptly discontinuing warfarin may induce a rebound prothrombotic state. Thrombolytic agents may also paradoxically induce prothrombotic conditions, which include platelet activation and thrombin generation. Therefore, prothrombotic states may be enhanced by withdrawing warfarin in patients under thrombolytic treatment. This study was aimed to determine whether patients with warfarin withdrawal have different clinical outcomes from those without warfarin use after thrombolytic treatment. METHODS A total of 148 consecutive patients with atrial fibrillation who were not on anticoagulants at admission and who received thrombolysis were included in this study. We compared the outcomes between a warfarin withdrawal group and a no-warfarin group. RESULTS Fourteen patients (9.5%) were included in the warfarin withdrawal group. Although baseline National Institute of Health Stroke Scale (NIHSS) scores, recanalization rates, and hemorrhage frequencies did not differ between the groups, the warfarin withdrawal group showed poorer outcomes. Increased NIHSS scores during the first 7days were more frequent in the warfarin withdrawal group (57.1% vs. 26.9%, P=0.029). The median percent improvement in NIHSS scores at 24h after thrombolysis was also lower in the warfarin withdrawal group. After adjusting for covariates, warfarin withdrawal was a strong predictor of poor functional outcome at 3months (modified Rankin score≥3) (odds ratio, 17.067, 95% CI 2.703-107.748). CONCLUSIONS Discontinuing warfarin was associated with early neurologic deterioration and poor long-term outcomes after thrombolytic treatment.
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Affiliation(s)
- Y D Kim
- Department of Neurology, Severance Hospital Integrative Research Institute for Cerebral and Cardiovascular Diseases, Yonsei University College of Medicine, Seoul, Korea
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Choi HY, Lim JE, Hong JH. Curcumin interrupts the interaction between the androgen receptor and Wnt/β-catenin signaling pathway in LNCaP prostate cancer cells. Prostate Cancer Prostatic Dis 2010; 13:343-9. [PMID: 20680030 DOI: 10.1038/pcan.2010.26] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recently, studies have investigated the significance of the Wnt/β-catenin pathway in prostate cancer. The transcriptional activity of the androgen receptor (AR) is modulated by interaction with coregulators, one of which is β-catenin. Curcumin, a dietary yellow pigment of Curcuma longa, has emerged as having a chemopreventive role. Although curcumin has been shown to inhibit AR expression, its molecular mechanism has not been fully elucidated. In this study, whether curcumin mediates the Wnt/β-catenin signaling pathway with regard to AR/β-catenin interactions was studied. Curcumin was shown to induce significant inhibition of AR expression in a dose-dependent manner. Marked curcumin-induced suppression of β-catenin was shown in the nuclear and cytoplasmic extracts as well as whole cell lysates. Further analysis revealed that phosphorylation of Akt and glycogen synthase kinase-3β were attenuated, but phosphorylated β-catenin was increased after curcumin treatment. Finally, cyclin D1 and c-myc, the target gene of the β-catenin/T-cell factor transcriptional complex, were also decreased. These findings suggest that curcumin modulates the Wnt/β-catenin signaling pathway and might have a significant role in mediating inhibitory effects on LNCaP prostate cancer cells.
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Affiliation(s)
- H Y Choi
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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