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39 results on '"Kim, Chang Zoo"'

22. Impact of Ground Plane Doping and Bottom-Gate Biasing on Electrical Properties in In0.53Ga0.47As-OI MOSFETs and Donor Wafer Reusability Toward Monolithic 3-D Integration With In0.53Ga0.47As Channel

Author

Kim, Seong Kwang, primary, Shim, Jae-Phil, additional, Geum, Dae-Myeong, additional, Kim, Jaewon, additional, Kim, Chang Zoo, additional, Kim, Han-Sung, additional, Song, Jin Dong, additional, Choi, Sung-Jin, additional, Kim, Dae Hwan, additional, Choi, Won Jun, additional, Kim, Hyung-Jun, additional, Kim, Dong Myong, additional, and Kim, Sanghyeon, additional

Published
2018
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23. In Vivo Enhanced Indocyanine Green-Photothermal Therapy for a Subconjunctival Tumor

Author

Kim, Chang Zoo, Lee, Sang Joon, Hwang, Sang Seok, Chae, Yu-Gyeong, Kwon, Daa Young, Ko, Taek Yong, Kim, Jun Hyeong, Jung, Min Jung, Masanganise, Rangarirai, Oak, Chulho, and Ahn, Yeh-Chan

Abstract

Indocyanine green (ICG) is a dye approved for use in clinical diagnostics. ICG remains in the intravascular space following intravenous administration, due to its ability to rapidly bind to the plasma proteins, and its therapeutic potential has been studied in well-vascularized cutaneous tumors. Here we have evaluated the clinical response of a subconjunctival tumor to photothermal therapy (PTT) using an ICG-enhanced near-infrared diode laser and its adverse effects, in a rabbit. 22 male New Zealand white rabbits with subconjunctival tumors were enrolled (control group 6, laser-only group 8, laser-with-ICG group 8). Rabbits in the laser-with-ICG group received ICG (twice, 2 mg/kg each time, intravenously) directly followed by irradiation with a diode laser (λ = 810 nm). Rabbits in the laser-only group were irradiated with the diode laser. ICG angiography, ultrasonography, and pathologic examination were performed to evaluate PTT response at specific time points (0, 2, and 4 weeks after PTT). Two weeks after initial treatment, the eight rabbits treated by laser with ICG showed a 100% response rate. There was no clinical response in both laser-only and control groups. ICG-PTT is a potential and effective palliative therapeutic modality for subconjunctival tumors.

Published
2021

33. Cost-effective fabrication of In0.53Ga0.47As-on-insulator on Si for monolithic 3D via novel epitaxial lift-off (ELO) and donor wafer re-use

Author

Kim, Seong Kwang, primary, Shim, Jaephil, additional, Geum, Dae-Myeong, additional, Kim, Chang Zoo, additional, Kim, Han-Sung, additional, Kim, Yeon-Su, additional, Kang, Hang-Kyu, additional, Song, Jin Dong, additional, Choi, Sung-Jin, additional, Kim, Dae Hwan, additional, Choi, Won Jun, additional, Kim, Hyung-jun, additional, Kim, Dong Myong, additional, and Kim, Sang Hyeon, additional

Published
2016
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39. Choroidal Thickening Induced by Pioglitazone in Diabetic Patients.

Author

Lee JS, Kim CZ, Lee SU, and Lee SJ

Subjects
Humans, Male, Female, Middle Aged, Aged, Diabetic Retinopathy diagnosis, Diabetic Retinopathy drug therapy, Follow-Up Studies, Retrospective Studies, Administration, Oral, Glycated Hemoglobin metabolism, Pioglitazone administration & dosage, Pioglitazone therapeutic use, Choroid pathology, Choroid drug effects, Choroid diagnostic imaging, Hypoglycemic Agents administration & dosage, Diabetes Mellitus, Type 2 drug therapy, Diabetes Mellitus, Type 2 complications, Tomography, Optical Coherence methods, Thiazolidinediones administration & dosage, Thiazolidinediones therapeutic use, Visual Acuity
Abstract

Purpose: This study aimed to determine the changes in choroidal thickness induced by pioglitazone in diabetic patients., Methods: A total of 261 patients diagnosed with type 2 diabetes who had taken oral pioglitazone for more than 6 months were included in the study. After excluding patients who did not undergo regular eye examinations or who had ophthalmic surgery/interventions during the treatment period, a total of 40 eyes were included. The study examined the duration and dosage of pioglitazone, patient age, ocular axial length, refraction, glycated hemoglobin, systolic blood pressure, corrected visual acuity, macular thickness, choroidal thickness, and choroidal vascular index. Patients were categorized into a high-dose group if their pioglitazone dose was 30 mg or more per day, and a low-dose group if it was 15 mg or less. Choroidal thickness was measured below the subfovea and a 500 µm radius nasal and temporal to that location., Results: Choroidal thickness significantly increased after 6 and 12 months of pioglitazone (6.70 and 13.65 µm, respectively) in all subjects. When stratified by pioglitazone dosage, choroidal thickness increased at 6 and 12 months in both high-dose group (4.48 and 0.84 µm, respectively) and low-dose groups (6.85 and 21.45 µm, respectively), with a greater change observed in the low-dose group (p < 0.05). Based on the location of choroidal thickness measurements, a significant increase in choroidal thickness was observed at 6 and 12 months of pioglitazone treatment in the subfoveal (7.00 and 13.15 µm, respectively) and nasal regions (6.43 and 19.24 µm, respectively), while a significant increase was only observed after 6 months of treatment in the temporal region (8.53 µm, p < 0.05). The largest increase in choroidal thickness was observed in the nasal side., Conclusions: This study found that choroidal thickness increased in diabetic patients after taking pioglitazone. Regular eye examinations are recommended for diabetic patients who are on pioglitazone.

Published
2024
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