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안재균,유형곤,김영주,유영석,정흠,Jae-Kyoun Ahn,Hyeong-Gon Yu,Young-Joo Kim M,S,Young-Suk Yu,Hum Chung 대한안과학회 2005 대한안과학회지 Vol.46 No.7
Purpose: To determine the phenotypic characteristics of peripheral CD8bright T cells. Methods: Forty patients with Beh?et’s disease (BD) with uveitis (active: 20; inactive: 20) and 20 healthy controls were recruited in this study. Phenotypic analysis of fresh PBMCs was performed using anti-CD8 mAb and anti-CD56 mAb in conjunction with a three- or four-color immunofluorescence tests for the expression levels of the following molecules: CD11b, CD27, CD45RA, CD45RO, CD62L, CD94, NKG2D, and HLA-DR. Results: CD27 and CD62L were down-regulated on peripheral CD8bright T cells in patients with active Beh?et’s uveitis in contrast to the up-regulation of CD11b and HLA-DR. These phenotypic natures were remarkable in the CD56+ subsets. CD45RAdimCD45RO- phenotypes were expanded in peripheral CD8brightCD56+ T cells according to the disease activity. Interestingly, in active Beh?et’s uveitis, CD94 was up-regulated on peripheral CD8brightCD56+ T cells in BD in contrast to the down-regulation of NKG2D compared with the normal controls. Conclusions: CD8brightCD56+ T cells are characterized by activated effector phenotypes with functional NK receptors and they may play immunopathogenic roles in Beh?et’s uveitis.
이광훈,안재균,Kwang Hoon Lee,Jae Kyoun Ahn 대한안과학회 2012 대한안과학회지 Vol.53 No.10
Purpose: To investigate the vitreous proteomic profiles of macular hole (MH) patients compared to donor eyes and epiretinal membrane (ERM) patients. Methods: Ten donor eyes, 25 MH patients (15 MH without posterior vitreous detachment (PVD) and 10 MH with PVD), 10 ERM patients and 4 patients with vitreomacular traction syndrome (VMTS) were enrolled in the present study. The undiluted vitreous samples were obtained from all eyes. Proteins were identified using the micro-RPLC/MS/MS technique and using mass spectrometric data analysis from the IPI database. Proteins were searched for the function, subcellular location and tissue specificity using the Uniprot database. Results: The mean vitreous protein concentrations were the highest (p < 0.01) in MH patients without PVD. There were no qualitative changes according to the age of donor eyes. However, the authors newly-identified 12 proteins (i.e. vasorin) in donor eyes. Ten out of 136 proteins (7.3%) (i.e. retinoschisin) were exclusively detected in the MH samples. S100A8 was exclusively detected in eyes without PVD, whereas CD59 was exclusively detected in eyes with PVD. Conclusions: The results suggest there is a small difference in the vitreous proteomic profiles in MH patients compared to donor eyes or ERM patients, and that the expression of vitreous proteins is closely associated with the presence of PVD. J Korean Ophthalmol Soc 2012;53(10):1512-1522
이민정,박영걸,안재균,Min Joung Lee,Yeoung Geol Park,Jae Kyoun Ahn 대한안과학회 2006 대한안과학회지 Vol.47 No.10
Purpose: To report a case of isolated cilioretinal artery occlusion associated with pseudoexfoliation syndrome. Methods: A 66-year-old female presented with acute vision loss of the right eye. Three months prior, she had been diagnosed as having pseudoexfoliation glaucoma of both eyes, and the intraocular pressure of both eyes had been well-controlled with topical medication. Results: The presenting visual acuity in her right eye was 20/100. Fundus examinations showed sectoral retinal whitening on superior macula. Fluorescein angiography revealed delayed filling of the cilioretinal artery, consistent with cilioretinal artery occlusion. No significant findings were identified by carotid doppler examination or echocardiography. After 8 weeks, retinal changes were completely resolved with improvement of her right vision to 20/25. Conclusions: Isolated cilioretinal artery occlusion may develop as an intraocular manifestation of pseudoexfoliation syndrome.
망막분지정맥폐쇄에서 유리체강내 트리암시놀론 주사 후 방수내 혈관투과인자들의 변화
송승,박성표,안재균,Seung Song,Sung Pyo Park,Jae Kyoun Ahn 대한안과학회 2008 대한안과학회지 Vol.49 No.11
Purpose: To investigate the changes of aqueous vascular endothelial growth factor (VEGF) and interleukin (IL)-6 in patients with acute macular edema secondary to recent-onset branch retinal vein occlusion (BRVO) after a single intravitreal injection of triamcinolone acetonide (IVTA) Methods: Aqueous and plasma levels of VEGF and IL-6 were measured by ELISA in ten controls and thirty patients at the time of IVTA and 3 months afterward. We compared the aqueous levels of VEGF and IL-6 and the clinical course between responders and non-responders. Results: The aqueous levels of VEGF and IL-6 were significantly higher in non-responders than in responders at baseline measurements (495±259 pg/ml vs. 223±110 pg/ml, P<.001; 36±32 pg/ml vs. 16±19 pg/ml, P=.037, respectively). The aqueous levels of VEGF were still higher in non-responders (303±75 pg/ml) 3 months after IVTA, while the aqueous levels of VEGF in responders returned to normal (77±23 pg/ml, P<.001). The aqueous levels of IL-6 normalized in all patients 3 months after IVTA. In non-responders, central foveal thickness was significantly higher, and foveal ischemia and a wide non-perfused area were more common. Conclusions: Non-IL6-dependent VEGF may contribute to persistent or recurrent ischemic macular edema associated with BRVO after IVTA. J Korean Ophthalmol Soc 2008;49(11):1765-1770
후낭이 유지된 인공수정체 망막박리에서 일차수술로 유리체절제술과 공막돌륭술의 비교
강인성,오한진,박영걸,안재균,In Seong Kang,Han Jin Oh,Yeoung Geol Park,Jae Kyoun Ahn 대한안과학회 2008 대한안과학회지 Vol.49 No.2
`Purpose: To compare the clinical outcomes between scleral buckling and vitrectomy in the primary management of pseudophakic retinal detachment with an intact posterior capsule. Methods: The medical records of 63 eyes that underwent scleral buckling (36 eyes) or vitrectomy (27 eyes) as a primary operation of uncomplicated pseudophakic retinal detachment with intact posterior capsules with a follow-up of more than one year were retrospectively reviewed from 2000 to 2005. We compared the clinical outcomes using anatomical and functional success rates at postoperative one year. Anatomical success was defined by a reattachment rate and functional success was measured by a change of more than 0.3 logMAR. Results: Anatomical success rates were 86% in the scleral buckling and 82% in the vitrectomy, respectively (p=0.837). Functional success rates were 81% in the scleral buckling and 70% in the vitrectomy, respectively (p=0.065). There were no significant differences of anatomical and functional success rates according to each surgical procedure. Conclusions: Either scleral buckling or vitrectomy may be chosen as a primary operation in the management of pseudophakic retinal detachment with intact posterior capsule.`