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Park I, Jennifer C, Michael G, David A, Claudia M. Functional Diversity Of Vascular Macrophages In Murine Atherosclerosis. Atherosclerosis 2019. [DOI: 10.1016/j.atherosclerosis.2019.06.876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Han S, Park I, Chang S, Na J. 991 Deep neural networks empower medical professionals in diagnosing skin cancer and predicting treatment options for general skin disorders. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.1067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kim Y, Kim E, Ahn H, Park I, Lee SC, Hwang I, Sym S, Shin D. Prognostic significance of CT-determined sarcopenia in patients with advanced gastric cancer treated with chemotherapy. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy432.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kim T, Gwak G, Chung M, Kim J, Park I, Um E, Han J, Lee A. Multicenter trial for safety and toxicity of a nanoparticle docetaxel formulation in breast cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy426.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ahn H, Kim Y, Kim E, Park K, Park I, Sym S, Park S, Shin D. A pilot study of exercise intervention during chemotherapy in patients with metastatic cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy444.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Park JH, Kim E, Park K, Kang S, Ahn H, Kim Y, Park I, Sym S, Shin D. A pilot study of exercise intervention in patients with metastatic cancer: Feasibility, safety, and patient reported outcome. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Byun J, Jung H, Bae WK, Lee HJ, Park S, Kim H, Maeng C, Park I, Sohn B, Kim J, Lee K, Im D, Kim J, Jang H, Kim S. Comparative effectiveness of neoadjuvant chemotherapy followed by cystectomy versus cystectomy followed by adjuvant chemotherapy versus palliative chemotherapy versus cystectomy for node-positive bladder cancer: A retrospective analysis: KCSG GU 17-03. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy283.117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yeo J, Ahn H, Park I, Kim Y, Sym S, Cho E, Shin D. Left ventricular ejection fraction (LVEF) change for the first 6 months predicts development of trastuzumab-related cardiotoxicity in patients with breast cancer: An implication for the more efficient cardiac surveillance. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy300.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Park I. Initial outcomes of endovenous laser ablation with 1940 nm diode laser in the treatment of incompetent saphenous veins. Vascular 2018; 27:27-32. [PMID: 30193551 DOI: 10.1177/1708538118797860] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVES To investigate the initial outcomes of 1940 nm diode laser in the treatment of incompetent saphenous veins. METHODS This was a prospective observational study. We treated 89 patients with 160 incompetent saphenous veins using a 1940 nm diode laser and bare fiber. The laser's power was set to 4.5 W with a mean linear endovenous energy density of 50.4 J/cm. RESULTS The one-month closure rate was 100%. The post-procedural pain score at 6 h, 1 day, 10 days, and 1 month was 0.85 ± 1.04, 0.65 ± 1.01, 0.82 ± 1.25, and 0.47 ± 0.82, respectively. Complications encountered included paresthesia (3.8%) and thrombophlebitis (4.4%), whereas no cases of endovenous heat-induced thrombosis were observed. CONCLUSION The 1940 nm laser and bare fiber at 50.4 J/cm showed satisfactory initial outcomes with less pain and fewer complications, in the treatment of incompetent saphenous veins.
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Choi JH, Han H, Bae YG, Hwang ST, Kim HY, Park I, Kim SM, Choe YH, Moon YJ. P4629Computationally simulated fractional flow reserve from coronary computed tomography angiography based on fractional myocardial mass. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Choi JH, Bae YG, Hwang ST, Han H, Kim SM, Kim HY, Park I, Lee JM, Moon YJ. P1711Non-invasive coronary physiology based on computational analysis of intracoronary transluminal attenuation gradient. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Park I, Choi JH, Kim EK, Kim SM, Yang JH, Song YB, Hahn JY, Choi SH, Gwon HC, Lee SH, Choi YH, Oh JK. P1790Non-invasive identification of coronary collateral vessels by coronary computed tomography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Park I, Pasquetti T, Malheiros RD, Ferket PR, Kim SW. Effects of supplemental L-methionine on growth performance and redox status of turkey poults compared with the use of DL-methionine. Poult Sci 2018; 97:102-109. [PMID: 29077910 PMCID: PMC5850274 DOI: 10.3382/ps/pex259] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 09/03/2017] [Indexed: 01/11/2023] Open
Abstract
This study was conducted to test the effects of dietary supplementation of feed grade L-Met on growth performance and redox status of turkey poults compared with the use of conventional DL-Met. Three hundred and eighty five newly hatched turkey poults were weighed and allotted to 5 treatments in a completely randomized design and the birds were fed dietary treatments for 28 d, including a basal diet (BD), the BD + 0.17 or 0.33% DL-Met or L-Met (representing 60, 75, and 90% of the requirement by National Research Council (NRC) for S containing AA, respectively). Increasing Met supplementation from 0 to 0.33% increased (P < 0.05) weight gain (690 to 746 g) and feed intake (1,123 to 1,248 g) of turkey poults. Supplementing L-Met tended (P = 0.053) to reduce feed to gain ratio (1.70 to 1.63) compared with DL-Met. The relative bioavailability of L-Met to DL-Met was 160% based on a multilinear regression analysis of weight gain. Supplementing Met regardless of its sources decreased (P < 0.05) malondialdehyde (3.29 to 2.47 nmol/mg protein) in duodenal mucosa compared with birds in the BD. Supplementing L-Met tended (P = 0.094) to decrease malondialdehyde (1.27 to 1.16 nmol/mg protein) and increase glutathione (3.21 to 3.45 nmol/mg protein) in the liver compared with DL-Met. Total antioxidant capacity, protein carbonyl, and morphology of duodenum and jejunum were not affected by Met sources. In conclusion, dietary supplementation of 0.33% Met to a diet with S containing AA meeting 60% of the NRC requirement enhanced weight gain, feed intake, and redox status by reducing oxidative stress in the gut and liver of turkey poults during the first 28 d of age. Use of L-Met tended to enhance feed efficiency and was more effective in reducing oxidative stress and increasing glutathione in the liver compared with the use of DL-Met. The use of L-Met as a source of Met replacing DL-Met seems to be beneficial to turkey poults during the first 28 d of age.
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Park I, Jung S, Seo Y, Oh S, Lee K, Kim S, Lee Y, Kim S. 0982 Differential Role of Sleep Disturbance and Stress Level on Depressive Symptoms and Anxiety. Sleep 2018. [DOI: 10.1093/sleep/zsy061.981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Park I. Successful use of VenaSeal system for the treatment of large great saphenous vein of 2.84-cm diameter. Ann Surg Treat Res 2018; 94:219-221. [PMID: 29629358 PMCID: PMC5880981 DOI: 10.4174/astr.2018.94.4.219] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 06/27/2017] [Accepted: 07/12/2017] [Indexed: 11/30/2022] Open
Abstract
Cyanoacrylate closure, VenaSeal system, for the treatment of incompetent saphenous vein is a new technique. We report a successful case with a large great saphenous vein of 2.84 cm in diameter.
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Lim SY, Choi M, Baek JY, Park I. Moderating effect of synthesized docosahexaenoic acid-enriched phosphatidylcholine on production of Th1 and Th2 cytokine in lipopolysaccharide-induced inflammation. Asian Pac J Trop Biomed 2018. [DOI: 10.4103/2221-1691.237076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Abbaneo D, Abbas M, Abbrescia M, Abi Akl M, Aboamer O, Acosta D, Ahmad A, Ahmed W, Aleksandrov A, Altieri P, Asawatangtrakuldee C, Aspell P, Assran Y, Awan I, Bally S, Ban Y, Banerjee S, Barashko V, Barria P, Bencze G, Beni N, Benussi L, Bhopatkar V, Bianco S, Bos J, Bouhali O, Braghieri A, Braibant S, Buontempo S, Calabria C, Caponero M, Caputo C, Cassese F, Castaneda A, Cauwenbergh S, Cavallo F, Celik A, Choi M, Choi S, Christiansen J, Cimmino A, Colafranceschi S, Colaleo A, Conde Garcia A, Czellar S, Dabrowski M, De Lentdecker G, De Oliveira R, de Robertis G, Dildick S, Dorney B, Endroczi G, Errico F, Fenyvesi A, Ferry S, Furic I, Giacomelli P, Gilmore J, Golovtsov V, Guiducci L, Guilloux F, Gutierrez A, Hadjiiska R, Hauser J, Hoepfner K, Hohlmann M, Hoorani H, Iaydjiev P, Jeng Y, Kamon T, Karchin P, Korytov A, Krutelyov S, Kumar A, Kim H, Lee J, Lenzi T, Litov L, Loddo F, Madorsky A, Maerschalk T, Maggi M, Magnani A, Mal P, Mandal K, Marchioro A, Marinov A, Majumdar N, Merlin J, Mitselmakher G, Mohanty A, Mohapatra A, Molnar J, Muhammad S, Mukhopadhyay S, Naimuddin M, Nuzzo S, Oliveri E, Pant L, Paolucci P, Park I, Passeggio G, Pavlov B, Philipps B, Piccolo D, Postema H, Puig Baranac A, Radi A, Radogna R, Raffone G, Ranieri A, Rashevski G, Riccardi C, Rodozov M, Rodrigues A, Ropelewski L, RoyChowdhury S, Ryu G, Ryu M, Safonov A, Salva S, Saviano G, Sharma A, Sharma A, Sharma R, Shah A, Shopova M, Sturdy J, Sultanov G, Swain S, Szillasi Z, Talvitie J, Tatarinov A, Tuuva T, Tytgat M, Vai I, Van Stenis M, Venditti R, Verhagen E, Verwilligen P, Vitulo P, Volkov S, Vorobyev A, Wang D, Wang M, Yang U, Yang Y, Yonamine R, Zaganidis N, Zenoni F, Zhang A. Quality control for the first large areas of triple-GEM chambers for the CMS endcaps. EPJ WEB OF CONFERENCES 2018. [DOI: 10.1051/epjconf/201817403003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The CMS Collaboration plans to equip the very forward muon system with triple-GEM detectors that can withstand the environment of the High-Luminosity LHC. This project is at the final stages of R&D and moving to production. An unprecedented large area of several 100 m2 are to be instrumented with GEM detectors which will be produced in six different sites around the world. A common construction and quality control procedure is required to ensure the performance of each detector. The quality control steps will include optical inspection, cleaning and baking of all materials and parts used to build the detector, leakage current tests of the GEM foils, high voltage tests, gas leak tests of the chambers and monitoring pressure drop vs. time, gain calibration to know the optimal operation region of the detector, gain uniformity tests, and studying the efficiency, noise and tracking performance of the detectors in a cosmic stand using scintillators.
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Abbaneo D, Abbas M, Abbrescia M, Abi Akl M, Aboamer O, Acosta D, Ahmad A, Ahmed W, Aleksandrov A, Altieri P, Asawatangtrakuldee C, Aspell P, Assran Y, Awan I, Bally S, Ban Y, Banerjee S, Barashko V, Barria P, Bencze G, Beni N, Benussi L, Bhopatkar V, Bianco S, Bos J, Bouhali O, Braghieri A, Braibant S, Buontempo S, Calabria C, Caponero M, Caputo C, Cassese F, Castaneda A, Cauwenbergh S, Cavallo F, Celik A, Choi M, Choi S, Christiansen J, Cimmino A, Colafranceschi S, Colaleo A, Conde Garcia A, Czellar S, Dabrowski M, De Lentdecker G, De Oliveira R, de Robertis G, Dildick S, Dorney B, Endroczi G, Errico F, Fenyvesi A, Ferrini M, Ferry S, Furic I, Giacomelli P, Gilmore J, Golovtsov V, Guiducci L, Guilloux F, Gutierrez A, Hadjiiska R, Hauser J, Hoepfner K, Hohlmann M, Hoorani H, Iaydjiev P, Jeng Y, Kamon T, Karchin P, Korytov A, Krutelyov S, Kumar A, Kim H, Lalli A, Lee J, Lenzi T, Litov L, Loddo F, Madorsky A, Maerschalk T, Maggi M, Magnani A, Mal P, Mandal K, Marchioro A, Marinov A, Majumdar N, Merlin J, Mitselmakher G, Mohanty A, Mohapatra A, Molnar J, Muhammad S, Mukhopadhyay S, Naimuddin M, Nuzzo S, Oliveri E, Pant L, Paolucci P, Park I, Passamonti L, Passeggio G, Pavlov B, Philipps B, Piccolo D, Pierluigi D, Postema H, Primavera F, Puig Baranac A, Radi A, Radogna R, Raffone G, Ranieri A, Rashevski G, Riccardi C, Rodozov M, Rodrigues A, Ropelewski L, RoyChowdhury S, Russo A, Ryu G, Ryu M, Safonov A, Salva S, Saviano G, Sharma A, Sharma A, Sharma R, Shah A, Shopova M, Sturdy J, Sultanov G, Swain S, Szillasi Z, Talvitie J, Tatarinov A, Tuuva T, Tytgat M, Valente M, Vai I, Van Stenis M, Venditti R, Verhagen E, Verwilligen P, Vitulo P, Volkov S, Vorobyev A, Wang D, Wang M, Yang U, Yang Y, Yonamine R, Zaganidis N, Zenoni F, Zhang A. A novel application of Fiber Bragg Grating (FBG) sensors in MPGD. EPJ WEB OF CONFERENCES 2018. [DOI: 10.1051/epjconf/201817403002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We present a novel application of Fiber Bragg Grating (FBG) sensors in the construction and characterisation of Micro Pattern Gaseous Detector (MPGD), with particular attention to the realisation of the largest triple (Gas electron Multiplier) GEM chambers so far operated, the GE1/1 chambers of the CMS experiment at LHC. The GE1/1 CMS project consists of 144 GEM chambers of about 0.5 m2 active area each, employing three GEM foils per chamber, to be installed in the forward region of the CMS endcap during the long shutdown of LHC in 2108-2019. The large active area of each GE1/1 chamber consists of GEM foils that are mechanically stretched in order to secure their flatness and the consequent uniform performance of the GE1/1 chamber across its whole active surface. So far FBGs have been used in high energy physics mainly as high precision positioning and re-positioning sensors and as low cost, easy to mount, low space consuming temperature sensors. FBGs are also commonly used for very precise strain measurements in material studies. In this work we present a novel use of FBGs as flatness and mechanical tensioning sensors applied to the wide GEM foils of the GE1/1 chambers. A network of FBG sensors have been used to determine the optimal mechanical tension applied and to characterise the mechanical tension that should be applied to the foils. We discuss the results of the test done on a full-sized GE1/1 final prototype, the studies done to fully characterise the GEM material, how this information was used to define a standard assembly procedure and possible future developments.
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Park I, Kim YS, Sym SJ, Ahn HK, Kim KK, Park YH, Lee JN, Shin DB. Metastasectomy for recurrent or metastatic biliary tract cancers: A single center experience. Indian J Cancer 2017; 54:57-62. [PMID: 29199665 DOI: 10.4103/0019-509x.219581] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
PURPOSE To assess efficacy or long-term result of metastasectomy for recurrent or metastatic biliary tract carcinoma (BTC), we conducted a retrospective review of the outcomes of metastasectomy for recurrent or metastatic BTCs, comprising intrahepatic cholangiocellular carcinoma (IHCCC), proximal and distal common bile duct cancer (pCBDC and dCBDC), gallbladder cancer (GBC), and ampulla of Vater cancer (AoVC). PATIENTS AND METHODS The clinicopathological features and outcomes of BTC patients who underwent surgical resection for the primary and metastatic disease at the Gachon University Gil Medical Centre from 2003 to 2013 were reviewed retrospectively. RESULTS We found 19 eligible patients. Primary sites were GBC (seven patients, 37%), IHCCC (five patients, 26%), dCBDC (three patients, 16%), pCBDC (two patients, 11%), and AoVC (two patients, 11%). Eight patients (42%) had synchronous metastasis whereas 11 (58%) had metachronous metastasis. The most common metastatic site was liver (nine patients, 47%), lymph node (nine patients, 47%), and peritoneum (three patients, 16%). Nine patients (47%) achieved R0 resection, whereas four (21%) and six (32%) patients had R1 and R2 resection, respectively. With a median follow-up period of 26.7 months, the estimated median overall survival (OS) was 18.2 months (95% confidence interval, 13.6-22.9 months). Lower Eastern Cooperative Oncology Group performance status (P = 0.023), metachronous metastasis (P = 0.04), absence of lymph node metastasis (P = 0.009), lower numbers of metastatic organs (P < 0.001), normal postoperative CA19-9 level (P = 0.034), and time from diagnosis to metastasectomy more than 1 year (P = 0.019) were identified as prognostic factors for a longer OS after metastasectomy. CONCLUSIONS For recurrent or metastatic BTCs, metastasectomy can be a viable option for selected patients.
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Choi Y, Akazawa N, Nakamura Y, Park I, Tokuyama K, Maeda S. The effects of bright light exposure at night on circadian rhythms and energy metabolism. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Park J, Park SW, Cho SI, Park I, Kim YH, Park EY, Oh JK, Kim SJ, Park JH, Lim MK. Planning of national prospective study on tobacco behavior transition among adolescents in Korea. Eur J Public Health 2017. [DOI: 10.1093/eurpub/ckx186.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Park I. Initial Outcomes of Cyanoacrylate Closure, VenaSeal System, for the Treatment of the Incompetent Great and Small Saphenous Veins. Vasc Endovascular Surg 2017; 51:545-549. [DOI: 10.1177/1538574417729272] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose: Cyanoacrylate closure of the saphenous vein with the VenaSeal system is a new technique just approved on December 2016 in Korea. Therefore, there are seldom reports about postprocedural outcomes of VenaSeal system in Asian countries. We report the initial outcomes of VenaSeal system for the treatment of great saphenous veins (GSVs) and small saphenous veins (SSVs) as a first report in Korea. Methods: Thirty-four patients with incompetent saphenous veins (47 GSVs and 16 SSVs) were treated at a single session. Concomitant phlebectomy was performed in 15 (44.1%) of 34 patients. All procedures were started with local anesthesia with music therapy and switched to intravenous sedation if patient requested. Patients revisited the clinic on 10 days, 1 month, and 3 months after surgery. Postprocedural evaluations including numerical pain rating score, revised Venous Clinical Severity Scores (rVCSS), and Aberdeen Varicose Vein Questionnaires were checked. Duplex ultrasound was performed on 10 days, 1 month, and 3 months. Results: All treated veins (47 GSVs and 16 SSVs; 100%) had complete closure by duplex ultrasound during the follow-up period. Mean numerical pain rating scale of 6 hours after procedure was 2.7. The rVCSS was improved during the follow-up period. Phlebitis-like “abnormal skin reaction” in the treatment area was occurred in 8 (23.5%) of 34 patients and recovered fully in 2 weeks. Conclusions: Cyanoacrylate closure, VenaSeal system, is safe and effective for the treatment of incompetent saphenous veins.
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Kim S, Park I, Park SG, Cho S, Kim JH, Ipper NS, Choi SS, Lee ES, Hong HJ. Generation, Diversity Determination, and Application to Antibody Selection of a Human Naïve Fab Library. Mol Cells 2017; 40:655-666. [PMID: 28927259 PMCID: PMC5638773 DOI: 10.14348/molcells.2017.0106] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 08/04/2017] [Accepted: 08/06/2017] [Indexed: 12/29/2022] Open
Abstract
We constructed a large naïve human Fab library (3 × 1010 colonies) from the lymphocytes of 809 human donors, assessed available diversities of the heavy-chain variable (VH) and κ light-chain variable (VK) domain repertoires, and validated the library by selecting Fabs against 10 therapeutically relevant antigens by phage display. We obtained a database of unique 7,373 VH and 41,804 VK sequences by 454 pyrosequencing, and analyzed the repertoires. The distribution of VH and VK subfamilies and germline genes in our antibody repertoires slightly differed from those in earlier published natural antibody libraries. The frequency of somatic hypermutations (SHMs) in heavy-chain complementarity determining region (HCDR)1 and HCDR2 are higher compared with the natural IgM repertoire. Analysis of position-specific SHMs in CDRs indicates that asparagine, threonine, arginine, aspartate and phenylalanine are the most frequent non-germline residues on the antibody-antigen interface and are converted mostly from the germline residues, which are highly represented in germline SHM hotspots. The amino acid composition and length-dependent changes in amino acid frequencies of HCDR3 are similar to those in previous reports, except that frequencies of aspartate and phenylalanine are a little higher in our repertoire. Taken together, the results show that this antibody library shares common features of natural antibody repertoires and also has unique features. The antibody library will be useful in the generation of human antibodies against diverse antigens, and the information about the diversity of natural antibody repertoires will be valuable in the future design of synthetic human antibody libraries with high functional diversity.
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Park I, Lee K, Sun H, Kim J, Chi H, Kim S, Kim Y, Park J, Yoo C, Jo J. Effect of interval between ovulation trigger and oocyte aspiration in GnRH antagonist cycles. Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Sun H, Lee K, Park I, Kim J, Chi H, Kim S, Kim Y, Park J, Jo J. Does luteal phase support improve pregnancy outcome in natural frozen-thawed embryo transfer cycles? Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.1044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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