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Park J, Yoon JS. Cutaneous Serratia marcescens infection in two dogs. J Small Anim Pract 2024; 65:270-273. [PMID: 38332607 DOI: 10.1111/jsap.13709] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 12/19/2023] [Accepted: 01/17/2024] [Indexed: 02/10/2024]
Abstract
We describe two canine cases of cutaneous infection caused by Serratia marcescens. A 2-year-old castrated male mixed dog (Case 1) presented with multiple ulcerations on the dorsal trunk, which were observed 4 days after shampooing. A 4-year-old male wolf shepherd mix dog (Case 2) presented with ulceration and purulent discharge on the nasal bridge. Cytological examination of both cases revealed pyogranulomatous inflammatory cells with rod-like infectious agents identified as S. marcescens in aerobic bacterial culture. Both patients were treated with oral antibiotics and topical chlorhexidine. Case 1 received enrofloxacin 10 mg/kg once daily for 1 week, followed by trimethoprim/sulfamethoxazole 15 mg/kg twice daily for 3 weeks. Case 2 received doxycycline 10 mg/kg twice daily for 4 weeks. No skin lesions were detected 2 weeks after the initial administration. The antibiotics were discontinued after a total 4 weeks of administration, and the skin lesions did not reappear.
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Affiliation(s)
- J Park
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Jeonbuk National University, Iksan, Korea
| | - J S Yoon
- Department of Veterinary Dermatology, College of Veterinary Medicine, Jeonbuk National University, Iksan, Korea
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Yoon JS, Nishifuji K, Iwasaki T. Development of an in vitro submerged culture system to synthesize epidermal ceramides in canine keratinocytes. Res Vet Sci 2020; 130:48-51. [PMID: 32143083 DOI: 10.1016/j.rvsc.2020.02.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 12/31/2019] [Accepted: 02/18/2020] [Indexed: 12/30/2022]
Abstract
Ceramides (CERs) in the stratum corneum (SC) are known to play a crucial role in determining skin barrier function in dogs. We aimed to develop an in vitro culture system that synthesized epidermal CER classes to better understand the synthesis of CER classes in canine SC-. Canine keratinocyte cells (MSCEK) at appropriate confluency were incubated with high Ca2+ (1.8 mM CaCl2) supplemented serum-free medium. Eight days post Ca2+ application, the surface of cultured MSCEK was broadly stained with anti-loricrin antibody implying that the keratinocytes had stratified into stratum granulosum. MSCEK cells synthesized heterogenous epidermal CERs, similar to those seen during the stratification of canine keratinocytes. CER fractions obtained from MSCEK cells were comparable to those from canine SC, including CER[EOS] (combination of ω-hydroxy fatty acids and sphingosines), CER[NP] (combination of non-hydroxy fatty acids and phytosphingosines), and CER[EOP] (combination of ω-hydroxy fatty acids and phytosphingosines), all of which are lowered in the SC during canine atopic dermatitis. Thus, the present study provides a simple culture system as a tool for in-depth analysis of CER production in canine keratinocytes.
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Affiliation(s)
- J S Yoon
- Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan.
| | - K Nishifuji
- Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
| | - T Iwasaki
- Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo 183-8509, Japan
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Kim SW, Kim MA, Chang Y, Lee HY, Yoon JS, Lee YB, Cho EJ, Lee JH, Yu SJ, Yoon JH, Park KJ, Kim YJ. Prognosis of surgical hernia repair in cirrhotic patients with refractory ascites. Hernia 2019; 24:481-488. [PMID: 31512088 DOI: 10.1007/s10029-019-02043-2] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 08/27/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Abdominal wall hernias are common in patients with ascites. Elective surgical repair is recommended for the treatment of abdominal wall hernias. However, surgical hernia repair in cirrhotic patients with refractory ascites is controversial. In this study, we aimed to evaluate the outcomes of elective surgical hernia repair in patients with liver cirrhosis with and without refractory ascites. METHOD From January 2005 to June 2018, we retrospectively reviewed the records of consecutive patients with liver cirrhosis who underwent a surgical hernia repair. RESULTS This study included 107 patients; 31 patients (29.0%) had refractory ascites. Preoperatively, cirrhotic patients with refractory ascites had a higher median model for end-stage liver disease (MELD) score (13.0 vs 11.0, P = 0.001) than those without refractory ascites. The 30-day mortality rate (3.2% vs 0%, P = 0.64) and the risk of recurrence (hazard ratio 0.410; 95% CI 0.050-3.220; P = 0.39) did not differ significantly between cirrhotic patients with refractory ascites and cirrhotic patients without refractory ascites. Among cirrhotic patients with refractory ascites, albumin (P = 0.23), bilirubin (P = 0.37), creatinine (P = 0.97), and sodium levels (P = 0.35) did not change significantly after surgery. CONCLUSION In advanced liver cirrhosis patients with refractory ascites, hernias can be safely treated with elective surgical repair. Mortality rate within 30 days did not differ by the presence or absence of refractory ascites. Elective hernia repair might be beneficial for treatment of abdominal wall hernia in cirrhotic patients with refractory ascites.
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Affiliation(s)
- S W Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - M A Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Y Chang
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - H Y Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Department of Internal Medicine, Eulji General Hospital, Eulji University School of Medicine, Seoul, South Korea
| | - J S Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea.,Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, South Korea
| | - Y B Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - E J Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - J-H Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - S J Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - J-H Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - K J Park
- Department of Surgery, Seoul National University College of Medicine, Seoul, South Korea
| | - Y J Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea. .,Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea.
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Yoon JS, Park J, Song R, Yu D. Substance P as a potential biomarker of pain assessment in dogs. Iran J Vet Res 2019; 20:289-292. [PMID: 32042294 PMCID: PMC6983313] [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] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 05/21/2019] [Accepted: 05/25/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Substance P (SP) is a neuropeptide that functions as a neuromodulator. It is released mainly in the brain stem and in nerve endings. AIMS The present study aimed to provide fundamental data that may be applied to the assessment of pain in dogs by evaluating their serum SP concentrations. METHODS Two groups of dogs were designated as pain groups that included 10 dogs with medial patella luxation (MPL) and 10 dogs with fractures, respectively, and 20 healthy dogs were enrolled as the control group. RESULTS The SP concentrations in the serum of the pain groups reached 485.5 ± 250.1 pg/ml that was significantly higher than those of the control group, which reached 116.4 ± 38.5 pg/ml. In particular, serum SP concentrations in dogs with fractures (663.3 ± 225.3 pg/ml) were significantly higher compared to those of dogs with MPL (307.8 ± 105.3 pg/ml), indicating that serum SP levels increased when the dogs experienced greater pain. CONCLUSION These findings propose the possibility that SP might be a useful biomarker for pain assessment in dogs. The present study may provide fundamental data that can aid in future pain management in dogs.
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Affiliation(s)
- J. S. Yoon
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chonbuk National University, Iksan 54596, Korea
- These authors contributed equally in this study
| | - J. Park
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chonbuk National University, Iksan 54596, Korea
- These authors contributed equally in this study
| | - R. Song
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chonbuk National University, Iksan 54596, Korea
| | - D. Yu
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju 52828, Korea
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Kim YC, Yang JY, Yoon JS, Jo SJ, Ahn HH, Song KH, Lee DY, Chung KY, Won YH, Kim IH. A multicentre, open, investigator-initiated phase IV clinical trial to evaluate the efficacy and safety of ingenol mebutate gel, 0·015% on the face and scalp, and 0·05% on the trunk and extremities, in Korean patients with actinic keratosis (PERFECT). Br J Dermatol 2018; 179:836-843. [PMID: 29355904 DOI: 10.1111/bjd.16368] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/14/2018] [Indexed: 01/04/2023]
Abstract
BACKGROUND Ingenol mebutate gel is a novel, field-directed topical treatment for actinic keratosis (AK). Most pivotal studies have targeted Western populations. No clinical study has been conducted to investigate its efficacy and safety in Asian populations. OBJECTIVES To evaluate the efficacy and safety of ingenol mebutate gel for treating AK of face/scalp and trunk/extremities in a large Asian (Korean) population. PATIENTS AND METHODS In this multicentre, open-label, interventional, parallel-group, prospective phase IV study (PERFECT, trial registration no.: NCT02716714), the eligible patients were allocated into either the face/scalp or the trunk/extremities group, according to their selected treatment area location. After application of ingenol mebutate gel, the participants were followed up for 6 months. The primary efficacy endpoint was complete clearance (CC) of AK lesions in the selected treatment area at day 57. Quality of life was evaluated using Skindex-29. Safety endpoints included local skin responses, scar, pigmentation, pain and adverse events. RESULTS In total, 78·1% [95% confidence interval (CI) 66·86-86·92%] of subjects had CC at day 57, with 76·6% (95% CI 64·31-86·25%) in the face/scalp group and 88·9% (95% CI 51·75-99·72%) in the trunk/extremities group. Among them, CC was sustained in 88·9% (48 of 54, 95% CI 77·37-95·81%) at month 6. The local skin responses significantly increased 1 day after the treatment compared with baseline, and decreased afterwards. Among the total subjects, 7·8% (6 of 77) had hyperpigmentation on the application area. Scars were not reported. CONCLUSIONS Ingenol mebutate is effective for the treatment of AK in Asians, with tolerable safety profiles.
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Affiliation(s)
- Y C Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J Y Yang
- Department of Dermatology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J S Yoon
- Department of Dermatology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - S J Jo
- Department of Dermatology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H H Ahn
- Department of Dermatology, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - K-H Song
- Department of Dermatology, Dong-A University College of Medicine, Busan, Republic of Korea
| | - D-Y Lee
- Department of Dermatology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - K-Y Chung
- Department of Dermatology, Severance Hospital, Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Y-H Won
- Department of Dermatology, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - I-H Kim
- Department of Dermatology, Korea University Ansan Hospital, Korea University College of Medicine, 123 Jeokgeum-ro, Danwon-gu, Ansan, 15355, Republic of Korea
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Lee JW, Cha JH, Shin SH, Cha HJ, Kim JH, Park CK, Pak KA, Yoon JS, Park SY. Effect of the sexual abstinence period recommended by the World Health Organization on clinical outcomes of fresh embryo transfer cycles with normal ovarian response after intracytoplasmic sperm injection. Andrologia 2018; 50:e12964. [PMID: 29460293 DOI: 10.1111/and.12964] [Citation(s) in RCA: 3] [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] [Accepted: 01/04/2018] [Indexed: 11/28/2022] Open
Abstract
This study was to investigate whether the sexual abstinence period (SAP) recommended by the World Health Organization (WHO) affects clinical outcomes. We compared the rate of clinical outcomes between 2-7 and ≥8 days of SAP in first fresh embryo transfer after intracytoplasmic sperm injection (ICSI) in groups of young maternal age (YMA: <38 years) and old maternal age (OMA: ≥38 years). We conducted a retrospective study of 449 first ICSI cycles with a normal ovarian response. SAP was identified before collecting the semen samples. Semen analysis was performed based on the guidelines recommended by WHO (2010). Sperm preparation was made using the swim-up method. Patients' baseline characteristics in the YMA and OMA groups did not differ. The rates of fertilisation, top-quality embryos on day 3, biochemical pregnancy, clinical pregnancy, ongoing pregnancy, abortion and implantation per cycle were not significantly different between 2-7 and ≥8 days of SAP in the YMA or OMA group. In conclusion, SAP beyond the recommended period by WHO was not associated with the rates of a lower fertilisation and pregnancy in human in vitro fertilisation (IVF). We think that a new criterion of SAP for clinical application in human IVF needs to be considered by WHO.
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Affiliation(s)
- J W Lee
- Agaon Fertility Clinic, Seoul, Korea
- College of Animal Life Science, Kangwon National University, Chuncheon, Korea
| | - J H Cha
- Agaon Fertility Clinic, Seoul, Korea
| | - S H Shin
- Agaon Fertility Clinic, Seoul, Korea
- College of Animal Life Science, Kangwon National University, Chuncheon, Korea
| | - H J Cha
- Agaon Fertility Clinic, Seoul, Korea
| | - J H Kim
- Agaon Fertility Clinic, Seoul, Korea
| | - C K Park
- College of Animal Life Science, Kangwon National University, Chuncheon, Korea
| | - K A Pak
- Agaon Fertility Clinic, Seoul, Korea
| | - J S Yoon
- Agaon Fertility Clinic, Seoul, Korea
| | - S Y Park
- Agaon Fertility Clinic, Seoul, Korea
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Ko JS, Seo Y, Chae MK, Jang SY, Yoon JS. Effect of topical loteprednol etabonate with lid hygiene on tear cytokines and meibomian gland dysfunction in prosthetic eye wearers. Eye (Lond) 2017; 32:439-445. [PMID: 29052604 DOI: 10.1038/eye.2017.213] [Citation(s) in RCA: 5] [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] [Received: 11/30/2016] [Accepted: 08/21/2017] [Indexed: 02/04/2023] Open
Abstract
PurposeTo assess tear cytokine levels and clinical outcomes in meibomian gland dysfunction (MGD) in the blind eye of patients wearing an ocular prosthesis after 2 months of treatment with topical loteprednol etabonate and eyelid scrubs with warm compresses.Patients and methodsThis study included patients with MGD wearing a unilateral ocular prosthesis for more than 1 year. All patients topically received 0.5% loteprednol etabonate and were instructed to scrub their eyelids with warm compresses on the prosthetic eye for 2 months. We evaluated tear cytokine levels using Multiplex Bead Immunoassays, performed biomicroscopic examination of the lid margins and meibomian gland, conducted meibography imaging, and assessed MGD-related ocular symptoms using a questionnaire for the prosthetic eye before and 2 months after treatment.ResultsThirty consecutive patients were included. There were significant reductions in the levels of interleukin (IL)-6, interferon-γ, monocyte chemotactic protein-1, IL-8, tumor necrosis factor-α, and IL-1β (P<0.001 for each cytokine). Moreover, there were improvements in ocular symptoms (P=0.001), lid margin abnormalities (P<0.001), meibomian gland expressibility (P<0.001) and meibography findings (P=0.037).ConclusionTopical loteprednol etabonate in conjunction with eyelid scrubs and warm compresses were effective in treating MGD in prosthetic eye wearers. Furthermore, tear cytokine measurements may serve as an additional approach for evaluating the efficacy of anti-inflammatory treatment for MGD in prosthetic eye wearers.
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Affiliation(s)
- J S Ko
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - Y Seo
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - M K Chae
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Jang
- Department of Ophthalmology, Soonchunhyang Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - J S Yoon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
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Kumazawa R, Mutoh T, Saito K, Seki T, Kasahara H, Tokitani M, Masuzaki S, Ashikawa N, Nakamura Y, Kubo S, Shimozuma T, Yoshimura Y, Igami H, Takahashi H, Takeiri Y, Tsumori K, Osakabe M, Ikeda K, Nagaoka K, Kaneko O, Goto M, Sato K, Chikaraishi H, Ida K, Nagayama Y, Zhao Y, Kwak JG, Yoon JS. Progress in Steady-State Plasma Operation Using ICRF Heating on LHD. Fusion Science and Technology 2017. [DOI: 10.13182/fst10-a10839] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. Kumazawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Mutoh
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Saito
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Seki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Kasahara
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Tokitani
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Masuzaki
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - N. Ashikawa
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nakamura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - S. Kubo
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - T. Shimozuma
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Yoshimura
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Igami
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Takahashi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Takeiri
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Tsumori
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Osakabe
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ikeda
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Nagaoka
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - O. Kaneko
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - M. Goto
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Sato
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - H. Chikaraishi
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - K. Ida
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Nagayama
- National Institute for Fusion Science, Toki 509-5292, Japan
| | - Y. Zhao
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - J. G. Kwak
- Korea Advanced Energy Research Institute, 150 Deogjin-dong, Yuseong-gu, Daejeon, Republic of Korea
| | - J. S. Yoon
- Korea Advanced Energy Research Institute, 150 Deogjin-dong, Yuseong-gu, Daejeon, Republic of Korea
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Yoon JS, Shin KI, Lee DW, Kim SK, Jin HG, Lee EH, Cho S. Strength Evaluation of HAZ in Electron Beam Welded ARAA by Small Punch Test for HCCR TBM in ITER. Fusion Science and Technology 2017. [DOI: 10.13182/fst14-942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. S. Yoon
- Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Republic of Korea
| | - K. I. Shin
- Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Republic of Korea
| | - D. W. Lee
- Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Republic of Korea
| | - S. K. Kim
- Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Republic of Korea
| | - H. G. Jin
- Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Republic of Korea
| | - E. H. Lee
- Korea Atomic Energy Research Institute, 989-111 Daedeok-daero, Yuseong-gu, Daejeon 305-353, Republic of Korea
| | - S. Cho
- National Fusion Research Institute, 169-148 Gwahangno, Yuseong-gu, Daejeon 305-333, Republic of Korea
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Woo YJ, Kim JW, Yoon JS. Preoperative clinical features of reactivated of Graves' orbitopathy after orbital decompression. Eye (Lond) 2017; 31:643-649. [PMID: 28060361 DOI: 10.1038/eye.2016.304] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 11/20/2016] [Indexed: 12/30/2022] Open
Abstract
PurposeTo investigate the incidence and preoperative clinical features of reactivated Graves' orbitopathy (GO) after orbital decompression.MethodsThis study included patients with GO who underwent orbital decompression for disfiguring proptosis and not compressive optic neuropathy and received postoperative follow-up care for more than 12 months. Patients who experienced active inflammatory signs within 6 months of decompression were excluded from analysis. The demographic characteristics, ophthalmic manifestations, and biochemical parameters of the patients were analyzed for association with reactivation of GO by logistic regression analysis.ResultsOut of the 92 patients included in this study, seven (7.6%) experienced reactivation of GO after orbital decompression. The mean time interval between surgery and reactivation of GO was 36.3±14.3 weeks. Univariate logistic regression analysis identified age, existing smoking habits, and modified NOSPECS and Gorman scores as significant factors for the reactivation of GO. The results of multivariate logistic regression analysis revealed that smoking and modified NOSPECS and Gorman scores were associated with the reactivation of GO.ConclusionsQuitting smoking is important for the prevention of reactivation of GO after orbital decompression. Patients with severe symptoms, especially those with restrictive myopathy, should be carefully monitored for reactivation of GO after orbital decompression.
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Affiliation(s)
- Y J Woo
- Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
| | - J W Kim
- Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
| | - J S Yoon
- Institute of Vision Research, Department of Ophthalmology, Yonsei University College of Medicine, Seoul, South Korea
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Moon JS, Kim JH, Kim JH, Park IR, Lee JH, Kim HJ, Lee J, Kim YK, Yoon JS, Won KC, Lee HW. Impaired RBC deformability is associated with diabetic retinopathy in patients with type 2 diabetes. Diabetes Metab 2016; 42:448-452. [PMID: 27209441 DOI: 10.1016/j.diabet.2016.04.008] [Citation(s) in RCA: 20] [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] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 04/19/2016] [Accepted: 04/24/2016] [Indexed: 11/24/2022]
Abstract
AIM Red blood cell (RBC) deformability, the ability of RBCs to change shape under stress, is known to be decreased in type 2 diabetes (T2D). However, as yet little is known of the association between RBC deformability and diabetic complications in T2D. For this reason, this study has investigated the association between RBC deformability and diabetic complications. METHODS In this cross-sectional study, 452 T2D patients were initially enrolled. RBC deformability was measured using a microfluidic ektacytometer and expressed as an elongation index at 3Pa (EI@3Pa, %). RESULTS A final total of 373 patients (mean age: 60.04±11.93 years; males: 201) were included in the study. When categorized into quartiles of RBC deformability, the lower EI@3Pa groups had higher glycated haemoglobin (HbA1c), triglycerides and prevalence of diabetic retinopathy compared with the higher quartiles (P<0.05 for trend). In particular, the EI@3Pa was significantly lower in patients with retinopathy than in those without retinopathy (30.53±1.95 vs 31.20±1.53, P=0.001). Between the lowest EI@3Pa quartile (Q1) to the highest (Q4, reference), the odds ratio (OR) for Q1 was 2.81 (95% CI: 1.21-6.49, P=0.004 for trend), after adjusting for age, gender, presence of hypertension and smoking, duration of diabetes, HbA1c, glomerular filtration rate and triglycerides. CONCLUSION In terms of diabetic complications, the lowest EI@3Pa group was closely associated with only the risk of diabetic retinopathy in our study. These results suggest that RBC deformability might be contributory to the development of the microvascular complication.
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Affiliation(s)
- J S Moon
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - J H Kim
- HaeDong Internal Medicine Clinic, Daegu, Republic of Korea
| | - J H Kim
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - I R Park
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - J H Lee
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - H J Kim
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - J Lee
- Yeungnam University College of Medicine, Department of Ophthalmology, Daegu, Republic of Korea
| | - Y K Kim
- Yeungnam University College of Medicine, Department of Laboratory Medicine, Daegu, Republic of Korea
| | - J S Yoon
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
| | - K C Won
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea.
| | - H W Lee
- Yeungnam University College of Medicine, Department of Internal Medicine, Daegu, Republic of Korea
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Yoon JS, Park J. Immunohistochemical characterization of sebaceous epithelioma in two dogs. Iran J Vet Res 2016; 17:134-136. [PMID: 27822240 PMCID: PMC5090144] [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] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 12/19/2015] [Accepted: 01/23/2016] [Indexed: 06/06/2023]
Abstract
This report describes two cases of sebaceous epithelioma and its immunohistochemical characterization with CK 14, CK18, p63, Ki67 and Bcl-2 immunostaining. Case 1 was a 12-year-old, intact English Cocker spaniel female presenting with multiple skin nodules over one year. Case 2 was a 7-year-old, spayed poodle female with a five-month history of solitary mass. Hematoxylin and eosin (H&E) staining showed that the nodules in both cases were irregular lobules comprised of epithelial cells around well-differentiated sebocytes. Neoplastic cells were positive for CK14 and p63 but were negative for CK18 cell marker. In addition, immunostaining for Ki67 proliferation marker showed 13.1% and 12.4% positive cells in the two cases, respectively. Furthermore, Bcl-2, which is highly expressed in human benign sebaceous tumors, was seen in basaloid cell nuclei and cytoplasm. CK14, CK18, p63, Ki67, and Bcl-2 antibody application provided further information for diagnosing sebaceous epithelioma and for prognosis in these two cases.
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Affiliation(s)
- J. S. Yoon
- Biomedical Research Institute, Seoul National University Hospital, 101 Daehangno, Jongno-gu, Seoul, Korea
| | - J. Park
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeonbuk 561-756, Korea
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13
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Kim SW, Bae KY, Kim JM, Shin IS, Hong YJ, Ahn Y, Jeong MH, Berk M, Yoon JS. The use of statins for the treatment of depression in patients with acute coronary syndrome. Transl Psychiatry 2015; 5:e620. [PMID: 26285130 PMCID: PMC4564569 DOI: 10.1038/tp.2015.116] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Revised: 06/26/2015] [Accepted: 07/08/2015] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate the effect of statins for the treatment of depression in individuals with acute coronary syndrome (ACS). We used 1-year follow-up data of a 24-week double-blind, placebo-controlled trial of escitalopram and a naturalistic prospective observational cohort study. Of 446 participants with comorbid depressive disorders and ACS at baseline, 300 participated in a randomised escitalopram trial and the remaining 146 participated in a naturalistic observational study. The participants in the two studies were approached for a 1-year follow-up investigation. Treatment response rates, defined as a ⩾ 50% reduction in the Hamilton Depression Rating Scale (HAM-D) and Beck Depression Inventory (BDI) scores, were used as the outcome variables. In the escitalopram trial, both HAM-D and BDI response rates were highest in patients taking escitalopram and statins together and lowest in patients receiving neither medication. Logistic regression analyses revealed that statin use was significantly associated with higher response rates on both the HAM-D and BDI at 1 year, whereas no such associations were found for escitalopram. In the naturalistic observational study, the response rates at 1 year did not differ significantly by statin use. Instead, the HAM-D response rate was significantly higher in patients taking lipophilic statins than in those who did not. In conclusion, statins may be effective for the treatment of depression independent of medical status and escitalopram use, and they may potentiate the antidepressant action of serotonergic antidepressants in patients with ACS.
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Affiliation(s)
- S W Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - K Y Bae
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - J M Kim
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea,Department of Psychiatry, Chonnam National University Medical School, 160 Baekseoro, Donggu, Gwangju 501-746, Korea. E-mail:
| | - I S Shin
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
| | - Y J Hong
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Korea
| | - Y Ahn
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Korea
| | - M H Jeong
- Department of Cardiology, Chonnam National University Medical School, Gwangju, Korea
| | - M Berk
- IMPACT Strategic Research Centre, School of Medicine, Deakin University, Geelong, VIC, Australia,Department of Psychiatry, The University of Melbourne, Parkville, VIC, Australia
| | - J S Yoon
- Department of Psychiatry, Chonnam National University Medical School, Gwangju, Korea
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14
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Kim YS, Yoon JS, Jang SY. Comparison of two- and three-point sutures for advancing the levator aponeurosis in Asian eyelids. Eye (Lond) 2015; 29:1181-5. [PMID: 26113504 DOI: 10.1038/eye.2015.107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 04/30/2015] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To compare the functional and cosmetic outcomes of two- and three-point sutures for advancing the levator aponeurosis in blepharoptosis surgery on Asians. PATIENTS AND METHODS This retrospective study examined 60 Asian patients with blepharoptosis who had undergone advancement of the levator aponeurosis: 34 patients (46 eyelids) had ptosis correction using the two-point suture technique and 26 patients (41 eyelids) had ptosis correction using the three-point suture technique. The postoperative marginal reflex distance (MRD1), lid height difference, and eyelid contour were evaluated. RESULTS Twenty-seven (79.4%) of the 34 patients in the two-point group and 19 (73.1%) of 26 patients in the three-point group had a postoperative MRD1 of 2-4 mm, lids within 0.5 mm of each other, and a satisfactory eyelid contour; this difference was not significant. The rate of reoperation did not differ significantly between the two groups. CONCLUSION Two- and three-point sutures for advancing the levator aponeurosis were equally effective for correcting blepharoptosis in Asians.
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Affiliation(s)
- Y S Kim
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea
| | - J S Yoon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Jang
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.,Yonsei University Graduate School of Medicine, Seoul, Korea
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Kim SJ, Yoon JS, Shishido H, Yang Z, Rooney LA, Barral JM, Skach WR. Translational tuning optimizes nascent protein folding in cells. Science 2015; 348:444-8. [DOI: 10.1126/science.aaa3974] [Citation(s) in RCA: 160] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Han JW, Yoon JS, Jang SY. Short-term effects of topical cyclosporine A 0.05% (Restasis) in long-standing prosthetic eye wearers: a pilot study. Eye (Lond) 2014; 28:1212-7. [PMID: 25081289 DOI: 10.1038/eye.2014.174] [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] [Received: 01/23/2014] [Accepted: 05/20/2014] [Indexed: 12/28/2022] Open
Abstract
PURPOSE Long-standing prosthetic eye wearing induces ocular surface inflammation. We investigated the short-term effects of topical cyclosporine A 0.05% (Restasis) in patients with ocular discomfort resulting from long-standing prosthetic eye wearing. METHODS This was a prospective, interventional case series. Patients who were unilateral prosthetic eye wearers over a period of 5 years were enrolled at a single institution from March to July 2013. The subjects were instructed to instill topical cyclosporine A 0.05% twice per day. Measurements were made pre-treatment and after 1 and 3 months of treatment. Outcome measures were the ocular symptom score, the lid margin abnormality score, the Schirmer test, and the tear meniscus amount, using Fourier-domain optical coherence tomography. RESULTS In total, 20 consecutive patients (mean age: 60.1 years, 8 males, 12 females) were included. Ocular symptoms were improved after treatment for 1 month in all patients (ocular symptom score pre-treatment 76.83 vs 46.75 after treatment; P<0.001). There was no statistically significant difference in lid margin abnormality score or tear meniscus amount. The Schirmer test results were improved after treatment for 3 months (pre- and after treatment, 6.70 vs 11.40; P<0.001). CONCLUSIONS Topical cyclosporine A 0.05% showed a satisfactory effect in long-standing prosthetic eye wearers. Ocular symptoms were markedly relieved in all subjects after treatment for 1 month.
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Affiliation(s)
- J W Han
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon,Korea
| | - J S Yoon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, Korea
| | - S Y Jang
- Department of Ophthalmology, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon,Korea
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18
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Shin YH, Kim HY, Kim YR, Yoon JS, Ko JS, Gwak MS, Kim GS, Lee SK. The comparison of femoral and radial arterial blood pressures during pediatric liver transplantation. Transplant Proc 2014; 45:1924-7. [PMID: 23769074 DOI: 10.1016/j.transproceed.2012.08.025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2012] [Accepted: 08/23/2012] [Indexed: 02/06/2023]
Abstract
BACKGROUND Orthotopic liver transplantation (OLT) is frequently associated with dramatic hemodynamic changes; thus, it is critical to accurately monitor blood pressure. Although comparisons between femoral arterial blood pressure (FABP) and radial arterial blood pressure (RABP) have been reported in adult liver recipients, we compared FABP with RABP in pediatric recipients. METHODS Thirty-five pediatric liver recipients younger than 13 years of age were included in this prospective, observational study. We measured simultaneous FABP and RABP in the femoral and radial arteries at nine time points during the procedure, including: baseline (after anesthetic induction); 1 hour thereafter; 30 minutes after the beginning of the anhepatic period as well as 0, 1, 3, 5, 15, and 60 minutes after graft reperfusion. RESULTS Of the 35 pediatric liver recipients, 2 infants and 1 13-month-old child were excluded from the analysis because of radial arterial catheter malfunction. The remaining 32 patients including 16 infants and 16 children all showed significantly higher systolic and mean FABP than RABP during most stages of pediatric OLT. Overall diastolic FABP measurements were similar to diastolic RABP throughout the study. CONCLUSIONS Systolic and mean FABP were significantly higher than RABP during most stages of pediatric OLT. Radial arterial catheter malfunctions were not uncommon during pediatric OLT. Our results indicated that it is useful to cannulate the femoral artery to accurately and reliably measure arterial blood pressure to detect hemodynamic instability during pediatric OLT.
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Affiliation(s)
- Y H Shin
- Department of Anesthesiology and Pain Management, Samsung Medical Center, Seoul, Korea
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Jang SY, Shin DY, Lee EJ, Lee SY, Yoon JS. Erratum: Relevance of TSH-receptor antibody levels in predicting disease course in Graves’ orbitopathy: comparison of the third-generation TBII assay and Mc4-TSI bioassay. Eye (Lond) 2013. [DOI: 10.1038/eye.2013.193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Sengodan S, Yoon JS, Yoon MY, Hwang HJ, Shin J, Kim G. Electrochemical Performance of YST Infiltrated and Fe Doped YST Infiltrated YSZ Anodes for IT-SOFC. ACTA ACUST UNITED AC 2013. [DOI: 10.1149/2.004306eel] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Piao MY, Kim HJ, Seo JK, Park TS, Yoon JS, Kim KH, Ha JK. Effects of synchronization of carbohydrate and protein supply in total mixed ration with korean rice wine residue on ruminal fermentation, nitrogen metabolism and microbial protein synthesis in holstein steers. Asian-Australas J Anim Sci 2012; 25:1568-74. [PMID: 25049518 PMCID: PMC4093039 DOI: 10.5713/ajas.2012.12379] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Revised: 09/17/2012] [Accepted: 09/11/2012] [Indexed: 11/27/2022]
Abstract
Three Holstein steers in the growing phase, each with a ruminal cannula, were used to test the hypothesis that the synchronization of the hourly rate of carbohydrate and nitrogen (N) released in the rumen would increase the amount of retained nitrogen for growth and thus improve the efficiency of microbial protein synthesis (EMPS). In Experiment 1, in situ degradability coefficients of carbohydrate and N in feeds including Korean rice wine residue (RWR) were determined. In Experiment 2, three total mixed ration (TMR) diets having different rates of carbohydrate and N release in the rumen were formulated using the in situ degradability of the feeds. All diets were made to contain similar contents of crude protein (CP) and neutral detergent fiber (NDF) but varied in their hourly pattern of nutrient release. The synchrony index of the three TMRs was 0.51 (LS), 0.77 (MS) and 0.95 (HS), respectively. The diets were fed at a restricted level (2% of the animal’s body weight) in a 3×3 Latin-square design. Synchronizing the hourly supply of energy and N in the rumen did not significantly alter the digestibility of dry matter, organic matter, crude protein, NDF or acid detergent fiber (ADF) (p>0.05). The ruminal NH3-N content of the LS group at three hours after feeding was significantly higher (p<0.05) than that of the other groups; however, the mean values of ruminal NH3-N, pH and VFA concentration among the three groups were not significantly different (p>0.05). In addition, the purine derivative (PD) excretion in urine and microbial-N production (MN) among the three groups were not significantly different (p>0.05). In conclusion, synchronizing dietary energy and N supply to the rumen did not have a major effect on nutrient digestion or microbial protein synthesis (MPS) in Holstein steers.
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Affiliation(s)
- Min Yu Piao
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - Hyun J Kim
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - J K Seo
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - T S Park
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - J S Yoon
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - K H Kim
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
| | - Jong K Ha
- Department of Nutrition and Physiology, National institute of animal science, RDA, Suwon 441-706, Republic of Korea
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22
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Jeon HJ, Yoon JS, Cho SS, Kang KO. Indigo carmine-induced hypotension in patients undergoing general anaesthesia. Singapore Med J 2012; 53:e57-e59. [PMID: 22434307] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Indigo carmine is a blue dye that is widely applied to localise ureteral orifices. It is generally believed to be a safe, biologically inert substance, and hypotensive reactions are extremely rare. However, we experienced three cases of indigo carmine-induced hypotension within a period of two weeks.
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Affiliation(s)
- H J Jeon
- Department of Anaesthesiology and Pain Medicine, Seoul Veterans Hospital, Dunchon 1-dong, Gangdong-gu, Seoul 134-060, Korea.
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Colakoglu M, Toy H, Icen MS, Vural M, Mahmoud AS, Yazici F, Buendgen N, Cordes T, Schultze-Mosgau A, Diedrich K, Beyer D, Griesinger G, Oude Loohuis EJ, Nahuis MJ, Bayram N, Hompes PGA, Oosterhuis GJE, Bossuyt PM, van der Veen F, Mol BWJ, van Wely M, Nahuis MJ, Oude Loohuis EJ, Kose N, Bayram N, Hompes PGA, Oosterhuis GJE, Bossuyt PM, van der Veen F, Mol BWJ, van Wely M, Yaba A, Demir N, Allegra A, Pane A, Marino A, Scaglione P, Ruvolo G, Manno M, Volpes A, Lunger F, Wildt L, Seeber B, Kolibianakis EM, Venetis CA, Bosdou J, Toulis K, Goulis DG, Tarlatzi TB, Tarlatzis BC, Franz M, Keck C, Daube S, Pietrowski D, Demir N, Yaba A, Iannetta R, Santos RDS, Lima TP, Giolo F, Iannetta O, Martins WP, Paula FJ, Ferriani RA, Rosa e Silva ACJS, Martinelli CE, Reis RM, Devesa M, Rodriguez I, Coroleu B, Tur R, Gonzalez C, Barri PN, Nardo LG, Mohiyiddeen L, Mulugeta B, McBurney H, Roberts SA, Newman WG, Grynberg M, Lamazou F, Even M, Gallot V, Frydman R, Fanchin R, Abdalla H, Nicopoullos J, Leader A, Pang S, Witjes H, Gordon K, Devroey P, Arrivi C, Ferraretti AP, Magli MC, Tartaglia ML, Fasolino MC, Gianaroli L, Macek sr. M, Feldmar P, Kluckova H, Hrehorcak M, Diblik J, Cernikova J, Paulasova P, Turnovec M, Macek jr. M, Hillensjo T, Yeko T, Witjes H, Elbers J, Devroey P, Mardesic T, Abuzeid M, Witjes H, Mannaerts B, Okubo T, Matsuo R, Kuwayama M, Teramoto S, Chakraborty P, Goswami SK, Chakravarty BN, Nandi SS, Kabir SN, Ramos Vidal J, Prados N, Caligara C, Garcia J, Carranza FJ, Gonzalez-Ravina A, Salazar A, Tocino A, Rodriguez I, Fernandez-Sanchez M, Ito H, Iwasa T, Hasegawa E, Hatano K, Nakayama D, Kazuka M, Usuda S, Isaka K, Ventura V, Doria S, Fernandes S, Barros A, Valkenburg O, Lao O, Schipper I, Louwers YV, Uitterlinden AG, Kayser M, Laven JSE, Sharma S, Goswami S, Goswami SK, Ghosh S, Chattopadhyay R, Sarkar A, Chakravarty BN, Louwers YV, Valkenburg O, Lie Fong S, van Dorp W, de Jong FH, Laven JSE, Ghosh S, Chattopadhyay R, Goswami SK, Radhika KL, Chakravarty BN, Benkhalifa M, Demirol A, Montjeant D, Delagrange P, Gentien D, Giakoumakis G, Menezo Y, Dattilo M, Gurgan T, Engels S, Blockeel C, Haentjens P, De Vos M, Camus M, Devroey P, Dimitraki M, Koutlaki N, Gioka T, Messini CI, Dafopoulos K, Messinis IE, Gurlek B, Batioglu S, Ozyer S, Nafiye Y, Kale I, Karayalcin R, Uncu G, Kasapoglu I, Uncu Y, Celik N, Ozerkan K, Ata B, Ferrero H, Gomez R, Delgado F, Simon C, Gaytan F, Pellicer A, Osborn JC, Fien L, Wolyncevic J, Esler JH, Choi D, Kim N, Choi J, Jo M, Lee E, Lee D, Fujii R, Neyatani N, Waseda T, Oka Y, Takagi H, Tomizawa H, Sasagawa T, Makinoda S, Ajina M, Zorgati H, Ben Salem A, Ben Ali H, Mehri S, Touhami M, Saad A, Piouka A, Karkanaki A, Katsikis I, Delkos D, Mousatat T, Daskalopoulos G, Panidis D, Pantos K, Stavrou D, Sfakianoudis K, Angeli E, Chronopoulou M, Vaxevanoglou T, Jones R GMJ, Lee WD, Kim SD, Jee BC, Kim KC, Kim KH, Kim SH, Kim YJ, Park KA, Chae SJ, Lim KS, Hur CY, Kang YJ, Lee WD, Lim JH, Tomizawa H, Makinoda S, Fujita S, Waseda T, Fujii R, Utsunomiya R T, Vieira C, Martins WP, Fernandes JBF, Soares GM, Reis RM, Silva de Sa MF, Ferriani R RA, Yoo JH, Kim HO, Cha SH, Koong MK, Song IO, Kang IS, Hatakeyama N, Jinno M, Watanabe A, Hirohama J, Hiura R, Konig TE, Beemsterboer SN, Overbeek A, Hendriks ML, Heymans MW, Hompes P, Homburg R, Schats R, Lambalk CB, van der Houwen L, Konig TE, Overbeek A, Hendriks ML, Beemsterboer SN, Kuchenbecker WK, Renckens CNM, Bernardus RE, Schats R, Homburg R, Hompes P, Lambalk CB, Potdar N, Gelbaya TA, Nardo LG, de Groot PCM, Dekkers OM, Romijn JA, Dieben SWM, Helmerhorst FM, Guivarch Leveque A, Homer L, Broux PL, Moy L, Priou G, Vialard J, Colleu D, Arvis P, Dewailly D, Aghahosseini M, Aleyasin A, Sarvi F, Safdarian L, Rahmanpour H, Akhtar MA, Navaratnam K, Ankers D, Sharma SD, Son WY, Chung JT, Reinblatt S, Dahan M, Demirtas M, Holzer H, Aspichueta F, Exposito A, Crisol L, Prieto B, Mendoza R, Matorras R, Kim K, Lee J, Jee B, Lee W, Suh C, Moon J, Kim S, Sarapik A, Velthut A, Haller-Kikkatalo K, Faure GC, Bene MC, de Carvalho M, Massin F, Uibo R, Salumets A, Alhalabi M, Samawi S, Taha A, Kafri N, Modi S, Khatib A, Sharif J, Othman A, Hamamah S, Assou S, Anahory T, Loup V, Dechaud H, Dewailly D, Mousavi Fatemi H, Doody K, Witjes H, Mannaerts B, Basconi V, Jungblut L, Young E, Van Thillo G, Paz D, Pustovrh MC, Fabbri R, Pasquinelli G, Magnani V, Macciocca M, Parazza I, Battaglia C, Paradisi R, Venturoli S, Ono M, Teranisi A, Fumino T, Ohama N, Hamai H, Chikawa A, Takata R, Teramura S, Iwahasi K, Shigeta M, Heidari M, Farahpour M, Talebi S, Edalatkhah H, Zarnani AH, Ardekani AM, Pietrowski D, Szabo L, Sator M, Just A, Franz M, Egarter C, Hope N, Motteram C, Rombauts LJ, Lee W, Chang E, Han J, Won H, Yoon T, Seok H, Diao FY, Mao YD, Wang W, Ding W, Liu JY, Chang E, Yoon T, Lee W, Cho J, Kwak I, Kim Y, Afshan I, Cartwright R, Trew G, Lavery S, Lockwood G, Niyani K, Banerjee S, Chambers A, Pados G, Tsolakidis D, Billi H, Athanatos D, Tarlatzis B, Salumets A, Laanpere M, Altmae S, Kaart T, Stavreus-Evers A, Nilsson TK, van Dulmen-den Broeder E, van der Stroom E, Konig TE, van Montfrans J, Overbeek A, van den Berg MH, van Leeuwen FE, Lambalk CB, Taketani T, Tamura H, Tamura I, Asada H, Sugino N, Al - Azemi M, Kyrou D, Papanikolaou EG, Polyzos NP, Devroey P, Fatemi HM, Qiu Z, Yang L, Yan G, Sun H, Hu Y, Mohiyiddeen L, Higgs J, Roberts S, Newman W, Nardo LG, Ho C, Guijarro JA, Nunez R, Alonso J, Garcia A, Cordeo C, Cortes S, Caballero P, Soliman S, Baydoun R, Wang B, Shreeve N, Cagampang F, Sadek K, Hill CM, Brook N, Macklon N, Cheong Y, Santana R, Setti AS, Maldonado LG, Valente FM, Iaconelli C, Braga DPAF, Iaconelli Jr. A, Borges Jr. E, Yoon JS, Won MY, Kim SD, Jung JH, Yang SH, Lim JH, Kavrut M, Kahraman S, Sadek KH, Bruce KB, Macklon N, Cagampang FR, Cheong YC, Cota AMM, Oliveira JBA, Petersen CG, Mauri AL, Massaro FC, Silva LFI, Vagnini LD, Nicoletti A, Pontes A, Cavagna M, Baruffi RLR, Franco Jr. JG, Won MY, Kim SD, Yoon JS, Jung JH, Yang SH, Lim JH, Kim SD, Kim JW, Yoon TK, Lee WS, Han JE, Lyu SW, Shim SH, Kuwabara Y, Katayama A, Tomiyama R, Piao H, Ono S, Shibui Y, Abe T, Ichikawa T, Mine K, Akira S, Takeshita T, Hatzi E, Lazaros L, Xita N, Kaponis A, Makrydimas G, Sofikitis N, Stefos T, Zikopoulos K, Georgiou I, Guimera M, Casals G, Fabregues F, Estanyol JM, Balasch J, Mochtar MH, Van den Wijngaard L, Van Voorst S, Koks CAM, Van Mello NM, Mol BWJ, Van der Veen F, Van Wely M, Fabregues F, Iraola A, Casals G, Creus M, Carmona F, Balasch J, Villarroel C, Lopez P, Merino P, Iniguez G, Codner E, Xu B, Cui Y, Gao L, Xue KAI, Li MEI, Zhang YUAN, Diao F, Ma X, Liu J, Leonhardt H, Gull B, Kishimoto K, Kataoka M, Stener-Victorin E, Hellstrom M, Cui Y, Wang X, Zhang Z, Ding G, HU X, Sha J, Zhou Z, Liu J, Liu J, Kyrou D, Kolibianakis EM, Fatemi HM, Camus M, Tournaye H, Tarlatzis BC, Devroey P, Davari F, Rashidi B, Rahmanpour Zanjani H, Al-Inany H, Youssef M, Aboulghar M, Broekmans F, Sterrenburg M, Smit J, Abousetta A, Van Dessel H, Van Leeuwen J, McGee EA, Bodri D, Guillen JJ, Rodriguez A, Trullenque M, Coll O, Vernaeve V, Snajderova M, Keslova P, Sedlacek P, Formankova R, Kotaska K, Stary J, Weghofer A, Dietrich W, Barad DH, Gleicher N, Rustamov O, Pemberton P, Roberts S, Smith A, Yates A, Patchava S, Nardo L, Toulis KA, Mintziori G, Goulis DG, Kintiraki E, Eukarpidis E, Mouratoglou SA, Pavlaki A, Stergianos S, Poulasouhidou M, Tzellos TG, Tarlatzis BC, Nasiri R, Ramezanzadeh F, Sarafraz Yazdi M, Baghrei M, Lee RKK, Wu FS, Lin S, Lin MH, Hwu YM. POSTER VIEWING SESSION - REPRODUCTIVE ENDOCRINOLOGY. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.90] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Cho SK, Yoon JS, Lee MG, Lee DH, Lim LA, Park K, Park MS, Chung JY. Rifampin Enhances the Glucose-Lowering Effect of Metformin and Increases OCT1 mRNA Levels in Healthy Participants. Clin Pharmacol Ther 2011; 89:416-21. [DOI: 10.1038/clpt.2010.266] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yoon JS, Kim ES, Hwang DW, Choi JY, Kim BK, Park BB, Choi JH, Lee YY. Biologic characteristics of bone marrow-derived mesenchymal stem cells from a patient with thalassemia syndrome. Int J Lab Hematol 2010; 33:281-9. [PMID: 21199425 DOI: 10.1111/j.1751-553x.2010.01285.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
INTRODUCTION Mesenchymal stem cells (MSCs) are capable of self-renewal and differentiating morphologically and functionally into several mesenchymal tissues. There have been contrasting data on whether MSCs are altered in various hematologic disorders. METHODS We isolated bone marrow (BM)-derived MSCs from a patient with thalassemia syndrome to compare phenotypic and functional characteristics to those from normal healthy donor. RESULTS No differences were observed between MSCs from thalassemia syndrome (T-MSCs) and those from normal healthy donor in terms of morphology, phenotype, karyotype, multidifferentiation capacity. In mixed lymphocyte reaction, T-MSCs strongly inhibited the proliferation of allogeneic T cells in association with reduced proportion of CD3(+), CD4(+), and CD8(+) cells. Furthermore, the fraction of Treg cells was increased under the culture with T-MSCs, suggesting that T-MSCs exert normal immunomodulatory function. In addition, T-MSCs expressed hematopoietic cytokines and supported hematopoiesis, which was comparable to those from normal BM-derived MSCs. CONCLUSION T-MSCs exhibited normal phenotype, karyotype as well as normal immunomodulatory function, and autologous MSCs from patients with thalassemia syndrome may be an attractive source of stem cell in terms of hematopoietic support as well as immunomodulatory activity.
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Affiliation(s)
- J S Yoon
- Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Kim SJ, Yoon JS, Park BK, Won SJ. Superior mesenteric artery syndrome in a tetraplegic patient, 11 years after a spinal cord injury: a case report. Spinal Cord 2010; 48:838-9. [DOI: 10.1038/sc.2010.24] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Kim CG, Bahng GW, Ahn JC, Chae KS, Park JK, Yoon JS. Development and Distribution of Standard Reference Data on Physical and Chemical Properties of Plasma. Fusion Science and Technology 2009. [DOI: 10.13182/fst09-a7011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- C. G. Kim
- National Center for Standard Reference Data, Korea Research Institute of Standards and Science, 1, Doryong-Dong, Yuseong-Gu, Daejeon 305-340, Rep. of Korea
| | - G. W. Bahng
- National Center for Standard Reference Data, Korea Research Institute of Standards and Science, 1, Doryong-Dong, Yuseong-Gu, Daejeon 305-340, Rep. of Korea
| | - J. C. Ahn
- National Center for Standard Reference Data, Korea Research Institute of Standards and Science, 1, Doryong-Dong, Yuseong-Gu, Daejeon 305-340, Rep. of Korea
| | - K. S. Chae
- National Center for Standard Reference Data, Korea Research Institute of Standards and Science, 1, Doryong-Dong, Yuseong-Gu, Daejeon 305-340, Rep. of Korea
| | - J. K. Park
- National Center for Standard Reference Data, Korea Research Institute of Standards and Science, 1, Doryong-Dong, Yuseong-Gu, Daejeon 305-340, Rep. of Korea
| | - J. S. Yoon
- Data Center for Plasma Properties, National Fusion Research Institute, Gwahangno 113,Yuseong-Gu, Daejeon 305-333, Rep. of Korea
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Abstract
INTRODUCTION The incidence of peroneal neuropathy (PN), occurring predominantly in the left leg, increases after the incorporation of intermittent pneumatic compression (IPC) devices among adult liver transplantation (OLT) recipients in our hospital. The aim of this study was to investigate the possible risk factors for PN and the reason for the left-leg predominance. METHODS We retrospectively reviewed the medical records of 501 OLT recipients. The patients were first divided into 2 groups, PN (n = 33) and non-PN (n = 468), to assess possible risk factors. The patients were then categorized into IPC (n = 262) and non-IPC (n = 239) groups according to the use of IPC devices. In a subsequent prospective study, we measured the degree and duration of the tilt of the operating table during OLT to investigate their relationship to the predominant left-leg PN. RESULTS The rate of IPC device use was significantly greater among the PN than non-PN group (78.8% vs 50.4%, P < .01). The incidence of PN was significantly higher among the IPC than non-IPC group (9.9% vs 2.9%, P < .01). The degree and duration of left tilt of the operating table were greater and longer than the right tilt. CONCLUSIONS The use of IPC devices during OLT increased the occurrence of PN and the left tilt of the operating table was strongly related to the predominant left-leg PN. Careful protection of the vulnerable point and minimization of the tilting of the operating table is advised during OLT, especially when IPC devices are used.
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Affiliation(s)
- J S Yoon
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul Korea
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Kim BJ, Koh SB, Park KW, Kim SJ, Yoon JS. Pearls & Oy-sters: False positives in short-segment nerve conduction studies due to ulnar nerve dislocation. Neurology 2008; 70:e9-13. [DOI: 10.1212/01.wnl.0000297515.86197.2e] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Yoon JS, Park HJ, Yoo SY, Namkung W, Jo MJ, Koo SK, Park HY, Lee WS, Kim KH, Lee MG. Heterogeneity in the processing defect of SLC26A4 mutants. J Med Genet 2008; 45:411-9. [PMID: 18310264 DOI: 10.1136/jmg.2007.054635] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Mutations in the SLC26A4 gene are responsible for Pendred syndrome and non-syndromic hearing loss (DFNB4). This study analysed non-synonymous SLC26A4 mutations newly identified in East Asians, as well as three common mutations in Caucasians, to characterise their molecular pathogenic mechanisms and to explore the possibility of rescuing their processing defects. METHODS A total of 11 non-synonymous disease associated mutations were generated and their effects on protein processing and on ion transporting activities were examined. RESULTS Most of the mutations caused retention of the SLC26A4 gene product (pendrin) in the intracellular region, while wild-type pendrin reached the plasma membrane. Accordingly, these mutations abolished complex glycosylation and Cl(-)/HCO(3)(-) exchange activities of pendrin. However, significant heterogeneity in the processing of mutant pendrin molecules was observed. Each mutant protein exhibited a different cellular localisation, a different degree of N-glycosylation, and a different degree of sensitivity to the treatments that rescue processing defects. For example, H723R-pendrin, the most common mutation in East Asians, was mostly expressed in endoplasmic reticulum (ER), and its defects in protein processing and ion transporting activities were restored considerably by low temperature incubation. On the other hand, L236P-pendrin, the most common mutation in Caucasians, was mainly in the centrosomal region and was temperature insensitive. CONCLUSION These results indicate that the processing of pendrin mutant protein is determined by mutant specific mechanisms, and that a mutant specific method would be required to rescue the conformational defects of each folding mutant.
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Affiliation(s)
- J S Yoon
- Department of Pharmacology and Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
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Koh SB, Suh SI, Lee DH, Kim AR, Oh CH, Yoon JS, Weon BM, Seol SK, Pyun AR, Je JH, Hwu Y, Margaritondo G. Phase contrast radiography of Lewy bodies in Parkinson disease. Neuroimage 2006; 32:566-9. [PMID: 16766209 DOI: 10.1016/j.neuroimage.2006.04.217] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [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: 11/24/2005] [Revised: 02/23/2006] [Accepted: 04/05/2006] [Indexed: 11/24/2022] Open
Abstract
Parkinson's disease (PD), defined as a neurodegenerative disorder, is characterized by the loss of dopaminergic neurons and the presence of Lewy bodies in neurons. Morphological study of Lewy bodies is important to identify the causes and the processes of PD. Here, we investigate a possibility of phase contrast radiography using coherent synchrotron X-rays to explore the microscopic details of Lewy bodies in thick (approximately 3 mm) midbrain tissues. Autopsied midbrain tissues of a PD patient were sliced in 3 mm thickness and then examined using synchrotron X-rays from the 7B2 beamline of the Pohang Light Source. Refraction-enhanced phase contrast radiography and microtomography were adopted to identify dark core and dim edge of Lewy bodies in neurons. The morphology of Lewy bodies was clearly revealed by the phase contrast radiography in very thick (3 mm) midbrain tissues without any staining treatment. Three-dimensional volume rendered microtomography of the autopsied midbrain tissues demonstrates striking evidence that several Lewy bodies are agglomerated by dim edges in a neuron. We suggest that the phase contrast radiography could be a useful tool to morphologically investigate the causes or the processes in PD.
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Affiliation(s)
- S B Koh
- Department of Neurology, Korea University College of Medicine, Korea.
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Kim JC, Yi HK, Hwang PH, Yoon JS, Kim HJ, Kawano F, Ohira Y, Kim CK. Effects of cold-water immersion on VEGF mRNA and protein expression in heart and skeletal muscles of rats. ACTA ACUST UNITED AC 2005; 183:389-97. [PMID: 15799775 DOI: 10.1111/j.1365-201x.2005.01415.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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: 11/26/2022]
Abstract
AIM The effects of cold exposure on gene and protein expression of vascular endothelial growth factor (VEGF), in heart and skeletal muscles, were studied in male adult Wistar rats. METHODS Cold immersion was accomplished by submerging the rats in shoulder-deep water maintained at approximately 18 degrees C, either acutely (1 h) or chronically (1 h day(-1), 5 days week(-1) for 20 weeks). The expressions of VEGF mRNA and protein in heart, gastrocnemius, and soleus muscles were examined by Northern and Western blotting and competitive-polymerase chain reaction techniques. RESULTS The expressions of VEGF mRNA and protein were markedly increased in cardiac muscle of the cold-immersed group, particularly in the 1-hour exposure group, whereas VEGF mRNA and protein in gastrocnemius were decreased significantly after an acute exposure. Although the protein level in gastrocnemius remained low in the chronically exposed group, the expression of mRNA of VEGF(165) with chronic exposure in this group returned to the control level and that of VEGF(206) was 15% greater than that in controls. The expression of mRNA for VEGF(165) in soleus was also lowered by acute cold exposure, although that for VEGF(206) was stable. However, VEGF protein was increased by 50%. After 20 weeks, all of these parameters were increased over the levels found in the controls. CONCLUSION These results suggest that the VEGF gene may be a major regulatory factor in cardiac and skeletal muscle adaptation to the cold environment stimulating angiogenesis and thermogenesis.
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Affiliation(s)
- J C Kim
- Department of Physical Education, Chonbuk National University, Cheonju City, Korea
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Kwon M, Bak JG, Choh K, Choi JH, Choi JW, England AC, Hong JS, Jhang HG, Kim JY, Kim SS, Ko WH, Lee DK, Lee JH, Lee SG, Lee HG, Lho T, Na HK, Park BH, Park MK, Seo DC, Seo SH, Yeom JH, Yoo SJ, You KI, Yoon JS, Yoon SW. Progress in the Study of RF Heating and Stabilization on HANBIT Mirror Device. Fusion Science and Technology 2005. [DOI: 10.13182/fst05-a602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M. Kwon
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - J. G. Bak
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - K. Choh
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - J. H. Choi
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - J. W. Choi
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - A. C. England
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - J. S. Hong
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - H. G. Jhang
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - J. Y. Kim
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - S. S. Kim
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - W. H. Ko
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - D. K. Lee
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - J. H. Lee
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - S. G. Lee
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - H. G. Lee
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - T. Lho
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - H. K. Na
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - B. H. Park
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - M. K. Park
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - D. C. Seo
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - S. H. Seo
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - J. H. Yeom
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - S. J. Yoo
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - K. I. You
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - J. S. Yoon
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
| | - S. W. Yoon
- Korea Basic Science Institute, 305-333 Daejeon, Republic of Korea
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Yoon SW, Kim SS, Park BH, Bak JG, Yoon JS, Seo DC. Neutral Transport and Particle Balance in Hanbit Magnetic Mirror Device. Fusion Science and Technology 2005. [DOI: 10.13182/fst05-a633] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- S. W. Yoon
- Korea Basic Science Institute: P. O. Box 41, Yusung Post Office, Yusung-Gu, Daejeon, 305-600, Korea
| | - S. S. Kim
- Korea Basic Science Institute: P. O. Box 41, Yusung Post Office, Yusung-Gu, Daejeon, 305-600, Korea
| | - B. H. Park
- Korea Basic Science Institute: P. O. Box 41, Yusung Post Office, Yusung-Gu, Daejeon, 305-600, Korea
| | - J. G. Bak
- Korea Basic Science Institute: P. O. Box 41, Yusung Post Office, Yusung-Gu, Daejeon, 305-600, Korea
| | - J. S. Yoon
- Korea Basic Science Institute: P. O. Box 41, Yusung Post Office, Yusung-Gu, Daejeon, 305-600, Korea
| | - D. C. Seo
- Korea Basic Science Institute: P. O. Box 41, Yusung Post Office, Yusung-Gu, Daejeon, 305-600, Korea
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Seo DC, Na HK, Yoon JS, Yoon SW. Measurements of Wall Recycling Coefficient in the HANBIT Mirror Device. Fusion Science and Technology 2005. [DOI: 10.13182/fst05-a676] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- D. C. Seo
- Korea Basic Science Institute, National Fusion R&D Center, 52, Yeoeun-Dong, Yusung-Gu, 305-806 Daejeon, South Korea
| | - H. K. Na
- Korea Basic Science Institute, National Fusion R&D Center, 52, Yeoeun-Dong, Yusung-Gu, 305-806 Daejeon, South Korea
| | - J. S. Yoon
- Korea Basic Science Institute, National Fusion R&D Center, 52, Yeoeun-Dong, Yusung-Gu, 305-806 Daejeon, South Korea
| | - S. W. Yoon
- Korea Basic Science Institute, National Fusion R&D Center, 52, Yeoeun-Dong, Yusung-Gu, 305-806 Daejeon, South Korea
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Nikoloff D, Shim JC, Fairchild M, Patten N, Fijal BA, Koch WH, MacPherson A, Flockhart D, Yoon YR, Yoon JS, Kim YH, Shin JG. Association between CYP2D6 genotype and tardive dyskinesia in Korean schizophrenics. Pharmacogenomics J 2003; 2:400-7. [PMID: 12629505 DOI: 10.1038/sj.tpj.6500138] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2002] [Revised: 07/08/2002] [Accepted: 07/09/2002] [Indexed: 11/09/2022]
Abstract
The CYP2D6 gene codes for human cytochrome P450 2D6 enzyme, which is responsible for the metabolism of many psychiatric drugs. In schizophrenic patients treated with neuroleptics, decreased or loss of function CYP2D6 alleles may contribute to the development of tardive dyskinesia (TD), a movement disorder that frequently occurs with chronic neuroleptic treatment. The goal of this study was to determine whether the occurrence of TD is associated with CYP2D6 genotype in a cohort of Korean schizophrenics by employing a CYP450 GeneChip((R)) oligonucleotide microarray and PCR assays to screen for 19 CYP2D6 alleles. Our results revealed that males with at least one decreased or loss of function allele have a moderately greater chance of developing TD than males with only wild-type alleles. Female schizophrenics did not have a significantly greater chance of developing TD. Our results demonstrate the utility of CYP2D6 microarrays to assess genotype status in this Korean cohort.
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Affiliation(s)
- D Nikoloff
- Roche Molecular Systems, Pharmacogenetics Department, Alameda, CA, USA
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37
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Han JY, Choi BG, Song DH, Ahn JG, Yoon JS, Lee KS. Vinorelbine-associated myelopathy in a patient who previously received paclitaxel: a case report. Med Oncol 2002; 18:95-7. [PMID: 11778975 DOI: 10.1385/mo:18:1:95] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [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: 11/11/2022]
Abstract
Vinorelbine seems to cause less neurotoxicity than other vinca alkaloids because of its selective activity on mitotic cells over axonal microtubules. Clinical trials report very mild peripheral neurotoxicity with distal paresthesiae and there are no reports of myelopathy in these series of patients. The authors describe a patient who developed a rare event of myelopathy while on vinorelbine for non-small-cell lung cancer.
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Affiliation(s)
- J Y Han
- Departments of Internal Medicine, College of Medicine, the Catholic University of Korea, Seoul.
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Orencia MC, Yoon JS, Ness JE, Stemmer WP, Stevens RC. Predicting the emergence of antibiotic resistance by directed evolution and structural analysis. Nat Struct Biol 2001; 8:238-42. [PMID: 11224569 DOI: 10.1038/84981] [Citation(s) in RCA: 170] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Directed evolution can be a powerful tool to predict antibiotic resistance. Resistance involves the accumulation of mutations beneficial to the pathogen while maintaining residue interactions and core packing that are critical for preserving function. The constraint of maintaining stability, while increasing activity, drastically reduces the number of possible mutational combination pathways. To test this theory, TEM-1 beta-lactamase was evolved using a hypermutator E. coli-based directed evolution technique with cefotaxime selection. The selected mutants were compared to two previous directed evolution studies and a database of clinical isolates. In all cases, evolution resulted in the generation of the E104K/M182T/G238S combination of mutations ( approximately 500-fold increased resistance), which is equivalent to clinical isolate TEM-52. The structure of TEM-52 was determined to 2.4 A. G238S widens access to the active site by 2.8 A whereas E104K stabilizes the reorganized topology. The M182T mutation is located 17 A from the active site and appears to be a global suppressor mutation that acts to stabilize the new enzyme structure. Our results demonstrate that directed evolution coupled with structural analysis can be used to predict future mutations that lead to increased antibiotic resistance.
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Affiliation(s)
- M C Orencia
- Department of Molecular Biology, The Scripps Research Institute, La Jolla, California 92037, USA
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Kim MN, Lee BY, Lee IM, Lee HS, Yoon JS. Toxicity and biodegradation of products from polyester hydrolysis. J Environ Sci Health A Tox Hazard Subst Environ Eng 2001; 36:447-463. [PMID: 11413830 DOI: 10.1081/ese-100103475] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Toxicity of products from polyester hydrolysis such as succinic acid (SA), adipic acid (AA), mandelic acid (MA), terephthalic acid (TA), 1,4-butanediol (1,4-B), ethylene glycol (EG), styrene glycol (SG) and 1,4-cyclohexane dimethanol (1,4-C) was evaluated by phytotoxicity test on germination of young radish seeds and by cytotoxicity test on HeLa cells. The phytotoxicity test revealed SG > MA > 1,4-C > AA approximately SA > TA approximately EG > 1,4-B in order of decreasing toxicity taking into consideration the growth behavior after germination as well as the percentage of germination. Toxicity on HeLa cells decreased in slightly different order compared to that on young radish seeds, i.e. SG > 1,4-C > MA > TA > SA > AA > EG > 1,4-B. Tests for the phytotoxicity and for cytotoxicity indicated that the aromatic compounds were more harmful than the aliphatic ones. Each group of 4 strains which grew most rapidly on each agar plate containing SA, AA, MA, TA, 1,4-B, EG, SG and 1,4-C respectively as a sole carbon source was identified by the fatty acid methyl esters analysis. The modified Sturm test was carried out using the single isolated strain, an activated sludge or a mixed soil to measure the rate of mineralization of the compounds into carbon dioxide. The aliphatic compounds were mineralized more easily than the aromatic compounds. 1,4-C showed the most exceptionally slow degradation. A scrutiny of residual 1,4-C after degradation is required before polyesters containing 1,4-C could be classified into compostable because 1,4-C has detrimental effects on young radish seeds and HeLa cells and has a tendency to accumulate in the environment due to its slow degradability.
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Affiliation(s)
- M N Kim
- Department of Biology, Sangmyung University, Seoul 110-743, Korea.
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Abstract
Hidroacanthoma simplex is a benign tumor of the skin originating from or showing differentiation to the sweat glands. It grossly resembles seborrheic keratosis of Bowen's disease and histologically shows intraepidermal focal growth of epithelial cells. Malignant transformation of this tumor is rare. We report a case of pigmented hidroacanthoma with malignant transformation in a 67-year-old woman. There was a 20-year history of a skin lesion on the right thigh, which first appeared as a small verrucous papule, progressed to a dark-brown colored patch, and then to a pigmented plaque. Histologically, the primary tumor was composed of small squamoid cells with marked cellular atypia. Most of the tumor cells were located in the epidermis. Immunohistochemically, the cytoplasm of some tumor cells showed a positive reaction for epithelial membrane antigen, but not for either carcino-embryonic antigen or the S-100 protein.
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Affiliation(s)
- W J Lee
- Department of Dermatology, Chungnam National University School of Medicine, Taejon, Korea
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Abstract
A rare case of Behcet's disease associated with myelodysplastic syndrome (MDS) is described. A 50-year-old Korean female suffering recurrent oral ulcer, genital ulcer, fatigue, arthralgia in both knees and fever was diagnosed as Behcet's disease. The findings of bone marrow aspirates were consistent with refractory anemia, a subtype of myelodysplastic syndrome. Chromosomal analysis of bone marrow cells revealed 46,XX,-8,-20,+der(8)t(8;20)(p23;p10),+der(8) t(8;20)(p23;q10)[30]. The chromosomal changes found in this patient were different from those of previous reports, which mostly revealed trisomy 8. If anemia, low reticulocyte count and dyspoietic cells are sustained in Behcet's disease, physicians should be alert to the possibility of MDS with aberration in chromosome 8 and perform a bone marrow study for the proper diagnosis and treatment of the disease. We presented a case of Behcet's disease associated with MDS, which is the first Korean case.
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Affiliation(s)
- E J Oh
- Department of Clinical Pathology, Catholic University of Korea, Seoul, Korea.
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Cheong YP, Park SK, Son Y, Lee KC, Song YK, Yoon JS, Kim TY. Comparison of incidence of gastroesophageal reflux and regurgitation associated with timing of removal of the laryngeal mask airway: on appearance of signs of rejection versus after recovery of consciousness. J Clin Anesth 1999; 11:657-62. [PMID: 10680108 DOI: 10.1016/s0952-8180(99)00117-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [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: 11/16/2022]
Abstract
STUDY OBJECTIVES To compare the incidence of gastroesophageal reflux and regurgitation associated with laryngeal mask airway (LMA) removal when signs of rejecting the LMA, such as swallowing, struggling, and restlessness, were observed and when the patient could open his or her mouth on command. DESIGN Randomized clinical trial. SETTING Operating room and recovery room of a tertiary care referral hospital. PATIENTS 63 ASA physical status I and II adult patients scheduled for elective orthopedic surgery. INTERVENTIONS Using a standardized general anesthetic technique, patients were allocated randomly to Group A (n = 34; LMA removed when signs of rejection, such as swallowing, struggling, and restlessness, were observed) or Group B (n = 29; LMA removed when the patient could open his or her mouth on command). MEASUREMENTS AND MAIN RESULTS To detect gastroesophageal reflux throughout anesthesia, a pH monitoring probe was positioned in the lower esophagus on the day before surgery. To assess regurgitation during emergence, a gelatin capsule of methylene blue (50 mg) was swallowed prior to induction. At the end of anesthesia, episodes of reflux and regurgitation of gastric contents were analyzed/determined by pH below 4 and bluish staining of the pharynx and/or LMA, respectively. Physical events such as bucking, straining, and coughing during the arousal phase were recorded in both groups by an independent observer. The incidence of reflux (pH < 4) from the time of the appearance of rejection signs to LMA removal and the total incidence of reflux in Group B were significantly higher than in Group A (p < 0.05). Staining of the LMA and the pharynx by methylene blue was not observed in patients from either experimental group. The number of physical events in Group B during the arousal phase was significantly increased compared to Group A (p < 0.05). Considering all patients in Group A and Group B, physical events were associated with the occurrence of reflux (p < 0.05). Desaturation (SpO2 < 95%) and clinical evidence of aspiration of gastric contents did not occur in either group. CONCLUSION Maintenance of the LMA until the patient can open his or her mouth on command increases the incidence of gastroesophageal reflux.
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Affiliation(s)
- Y P Cheong
- Department of Anesthesiology, Wonkwang University School of Medicine, Iksan, Cheonbuk, South Korea.
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Affiliation(s)
- J S Yoon
- Department of Nutritional Sciences, University of California, Berkeley, USA
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Choi HJ, Park SH, Yoon JS, Lee HS, Choi SJ. Rheological study on poly-D(-)(3-hydroxybutyrate) and its blends with poly(ethylene oxide). POLYM ENG SCI 1995. [DOI: 10.1002/pen.760352010] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Kim HN, Chung MH, Shim YJ, Yoon JS. Aided versus implanted speech recognition abilities in severe to profound postlingual deafness. Ann Otol Rhinol Laryngol Suppl 1995; 166:153-4. [PMID: 7668612] [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] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- H N Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Yonsei University, College of Medicine, Seoul, Korea
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46
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Choi HJ, Park SH, Yoon JS, Lee HS, Choi SJ. Rheological Study on Biodegradable Poly(3-Hydroxybutyrate) and Its Copolymer. Journal of Macromolecular Science, Part A 1995. [DOI: 10.1080/10601329508018975] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Rockwood EJ, Kalenak JW, Plotnik JL, Yoon JS, Sculley L, Medendorp SV. Prospective ultrasonographic evaluation of intraoperative and delayed postoperative suprachoroidal hemorrhage from glaucoma filtering surgery. J Glaucoma 1995; 4:16-24. [PMID: 19920632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
PURPOSE To determine the incidence of, visual loss from, and perioperative risk factors for suprachoroidal hemorrhage (SCH) occurring during or after glaucoma filtering surgery. METHODS Contact B-Scan ultrasonography was used to evaluate at a median of 15 days postoperatively, one eye of 158 patients who underwent various glaucoma filtering procedures during an 18 month period. RESULTS Ultrasonography detected SCH in 13 patients (8.2%). SCH was recognized during surgery in two cases; 11 were detected postoperatively. Preexisting aphakia (odds ratio 12.9, 95% confidence interval 3.6 to 46.2) and intraoperative anterior vitrectomy (odds ratio 5.2, 95% confidence interval 1.2 to 22.4) were significantly associated with SCH. A significant negative association was found for combined cataract/glaucoma procedures with posterior chamber intraocular lens implantation (odds ratio 0.08, 95% confidence interval 0.01 to 0.69). No significant association between SCH and age, sex, race, diabetes, obesity, systemic hypertension, right versus left eye, type of glaucoma, surgeon, number of preoperative antiglaucoma medications, 5-fluorouracil/mitomycin-C therapy-or previous vitrectomy was found. For some risk factors the power of the study may not be sufficient to establish a correlation: with SCH. Two patients with SCH had serious visual acuity loss and 2 had mild visual acuity loss. Eyes of three patients were surgically drained of SCH. Most patients with SCH did not experience pain, and only one presented-with elevated intraocular pressure at the time SCH was recognized. CONCLUSION Pre-existing aphakia and concurrent vitrectomy were significant risk factors identified. Combined cataract and glaucoma filtering procedures correlated negatively with suprachoroidal hemorrhage. Most patients with suprachoroidal hemorrhage experienced little or no visual loss, pain, or intraocular pressure elevation.
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Affiliation(s)
- E J Rockwood
- Departments of Ophthamology and daggerBiostatistics and Epidemiology, Cleveland Clinic Foundation, Cleveland, Ohio, and *Department of Ophthalmology, Medical College of Wisconsin, Milwaukee, Wisconsin, U.S.A
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48
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Lee JH, Sung YH, Yoon JS, Park JK. Lipedematous scalp. Arch Dermatol 1994; 130:802-3. [PMID: 8002658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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49
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Winters LR, Yoon JS, Kalkwarf HJ, Davies JC, Berkowitz MG, Haas J, Roe DA. Riboflavin requirements and exercise adaptation in older women. Am J Clin Nutr 1992; 56:526-32. [PMID: 1503064 DOI: 10.1093/ajcn/56.3.526] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [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: 12/27/2022] Open
Abstract
The effects of exercise training on riboflavin requirements and of riboflavin intake on endurance were examined in 14 women, 50-67 y of age, who participated in a 10-wk, two-period crossover exercise study at two riboflavin intakes, 0.15 micrograms/kJ (0.6 micrograms/kcal) and 0.22 micrograms/kJ (0.9 micrograms/kcal). Subjects exercised 20-25 min/d, 6 d/wk, for 4-wk periods on a cycle ergometer at 75-85% of their maximal heart rate. Riboflavin status was assessed by measuring the erythrocyte glutathione reductase activity coefficient (EGRAC) and urinary riboflavin excretion. Physical performance was evaluated by using a walking treadmill test to determine maximal oxygen capacity (VO2max) and anaerobic threshold by gas exchange (ATGE). Exercise significantly affected riboflavin status as EGRAC increased (P less than 0.001) and riboflavin excretion decreased (P less than 0.01) in both groups. VO2max increased significantly with exercise (P less than 0.01). However, changes in VO2max (L/min) and ATGE with exercise training were not different in the two groups. Riboflavin requirements of older women increased with exercise training, but increased riboflavin intake did not enhance improvements in endurance.
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Affiliation(s)
- L R Winters
- Division of Nutritional Sciences, Cornell University, Ithaca, NY 14853
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