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- 저자 : 양재욱.Ho Young Lee. M.D.. Jae Wook Yang. M.D.. Ph.D. (검색결과 2 건)
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다공성 안와충전물에서 혈관생성 및 유지에 대한 혈관전구세포와 섬유소의 역할
양재욱,이호영,박세광,양영일.Jae Wook Yang. M.D.. Ph.D.. Ho Young Lee. M.D.. Sae Gwang Park. M.D.. Ph.D.. Young Il Yang. M.D.. Ph.D. 대한안과학회 2008 대한안과학회지 Vol.49 No.7
Purpose: The effects of endothelial progenitor cells (EPCs) and fibrin on fibrovascular growth into porous polyethylene orbital implants (Medpor® sheet) were investigated using stem cells. Methods: EPCs were separated from human adipose fat tissue for culture. Fluorescence-activated cell sorting (FACS) was used to identify the phenotype and to analyze the purity of EPCs cultivated from human adipose tissue. Processed Medpor® sheets were inserted in each quadrant of the subcutaneous fat layer under the dorsal surface of 20 anesthetized athymic nude mice, using sterile methods. Medpor® sheets processed with endothelial progenitor cells and fibrin were inserted into the two top quadrants, a Medpor® sheet processed with fibrin was inserted in the lower right quadrant, and an unprocessed Medpor® sheet was inserted in the lower left quadrant of each mouse. The mice were sacrificed on the seventh day. The adhesiveness and blood vessel formation were quantified by weight and the number of blood cells within the Medpor® sheets. Hematoxylin and eosin (H&E) and toluidine blue stains were used to analyze fibrovascular and cell growth within the Medpor® sheets. Results: The sheets processed with EPCs and fibrin were heavier and contained more white and red blood cells (p<0.001) than the other sheets. The sheets processed with fibrin alone were heavier (p<0.01) and contained more blood cells (p<0.001) than the unprocessed sheets. The degree of vessel formation and tissue adhesiveness was greatest in the group of Medpor® sheets processed with EPCs and fibrin. The sheets processed with fibrin only had greater tissue adhesiveness and fibrovascular proliferation than the unprocessed Medpor® sheets. Conclusions: Endothelial progenitor cells and fibrin applied to Medpor® sheets improve fibrovascular proliferation and tissue adhesiveness. When both are applied together, a synergistic effect is seen. J Korean Ophthalmol Soc 49(7):1135-1145, 2008
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안구위축 혹은 변색된 실명안에서 Scleral Shell 의안 착용 결과에 대한 임상 연구
이호영,양재욱.Ho Young Lee. M.D.. Jae Wook Yang. M.D.. Ph.D. 대한안과학회 2008 대한안과학회지 Vol.49 No.7
Purpose: To show that scleral shells can be good cosmetic prostheses for phthisis bulbi or discolored blind eyes for which no evisceration or enucleation is indicated. Methods: Twenty patients with phthisis bulbi or discolored blind eyes were enrolled in this study. All patients were using scleral shells. We evaluated any complications induced by the scleral shells and the cosmetic results during the follow-up period. Results: The average central thickness of the scleral shell was 1.84±0.26 mm, and the average volume was 1.52±0.25 ml. The average difference in palpebral fissure width between the fellow eye and the eye with a fitted scleral shell was 0.8±0.62 mm. One patient complained about ocular irritation and difficulty in fitting but was satisfied with the cosmetic appearance. Conclusions: Fitting scleral cover shells over phthisis bulbi or discolored blind eyes without evisceration or enucleation could be a successful remedy for enhancing cosmetic appearance. J Korean Ophthalmol Soc 49(7):1041-1045, 2008
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