276
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Moon H, Kim J, Park S, Kim Y, Park H, Choi H, Kim S, Choi B, Lee T. UP-2.40: Influence of overactive bladder on falls: study on females aged 40 and older in urban and rural communities. Urology 2010. [DOI: 10.1016/j.urology.2010.07.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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277
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Choi H, Watanabe T. Changes induced by attentional training - capacity increase vs. allocation changes. J Vis 2010. [DOI: 10.1167/10.7.1099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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278
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Katz D, Boonsirikamchai P, Benjamin RS, Patel S, Ludwig JA, Trent JC, Xiao L, Ravi V, Choi H, Araujo DM. Efficacy of neoadjuvant doxorubicin and ifosfamide (AI) in myxoid/round cell liposarcoma (MRCL): The M. D. Anderson Cancer Center experience (MDACC). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.10080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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279
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Kwon H, Kim S, Oh S, Lee S, Kwon K, Lee JH, Choi H, Park K, Roh M, Kim H. Clinicopathologic significance of p53, hypoxia-inducible factor 1 alfa, and vascular endothelial growth factor expression in colorectal cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.3609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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280
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Lee S, Choi H, Kim E, Choi H, Chung H, Chung KH. Estimation of the Measurement Uncertainty by the Bottom-Up Approach for the Determination of Methamphetamine and Amphetamine in Urine. J Anal Toxicol 2010; 34:222-8. [DOI: 10.1093/jat/34.4.222] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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281
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Choi H, Kang H, Park H. New angle-dependent potential energy function for backbone-backbone hydrogen bond in protein-protein interactions. J Comput Chem 2010; 31:897-903. [PMID: 19618414 DOI: 10.1002/jcc.21378] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Backbone-backbone hydrogen bonds (BBHBs) are one of the most abundant interactions at the interface of protein-protein complex. Here, we propose an angle-dependent potential energy function for BBHB based on density functional theory (DFT) calculations and the operation of a genetic algorithm to find the optimal parameters in the potential energy function. The angular part of the energy function is assumed to be the product of the power series of sine and cosine functions with respect to the two angles associated with BBHB. Two radial functions are taken into account in this study: Morse and Leonard-Jones 12-10 potential functions. Of these two functions under consideration, the former is found to be more accurate than the latter in terms of predicting the binding energies obtained from DFT calculations. The new HB potential function also compares well with the knowledge-based potential derived by applying Boltzmann statistics for a variety of protein-protein complexes in protein data bank.
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282
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Newman G, Choi H, Wynn K, Scholl B. The Origins of causal perception: Evidence from postdictive processing in infancy. J Vis 2010. [DOI: 10.1167/7.9.917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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283
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Choi H, Scholl BJ. Effects of grouping and attention on the perception of causality. J Vis 2010. [DOI: 10.1167/3.9.544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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284
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Choi H, Scholl BJ. Blindness to swapping features in simple dynamic events. J Vis 2010. [DOI: 10.1167/6.6.299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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285
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Choi H, Scholl BJ. Can the perception of causality be measured with representational momentum? J Vis 2010. [DOI: 10.1167/5.8.655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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286
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Shah L, Choi H, Krapp F, Zamudio C, Seas C, Ciampi A, Brewer T, Gotuzzo E. Predictors of primary multiple drug resistant tuberculosis (MDR-TB) transmission in Lima, Peru. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.1544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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287
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Han S, Chin B, Choi H, Shin S, Chae Y, Jin S, Baek JH, Kim C, Choi J, Song Y, Kim J. Predictive factors for the indeterminate result on the QuantiFERON-TB Gold In-Tube test. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.2163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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288
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Choi H, Chin B, Shin S, Jin S, Chae Y, Han S, Baek JH, Choi J, Kim C, Kim J. Clinical features of acute viral hepatitis A complicated with acute renal failure. Int J Infect Dis 2010. [DOI: 10.1016/j.ijid.2010.02.1991] [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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289
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Choi H, Kang H, Park H. Extended Morse Function Model for Angle-Dependent Hydrogen Bond in Protein−Protein Interactions. J Phys Chem B 2010; 114:2980-7. [DOI: 10.1021/jp909983y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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290
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Choi H. Author's reply. West J Med 2010. [DOI: 10.1136/bmj.c452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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291
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292
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Kim M, Cho Y, Lee C, Ko J, Choi H, Kim B. Incidence and Severity of Complications Related to Intraoperative Spillage of Teratoma Contents during Laparoscopic Surgery: Ten Year's Experience. J Minim Invasive Gynecol 2009. [DOI: 10.1016/j.jmig.2009.08.467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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293
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Choi K, Ryu SW, Song S, Choi H, Kang SW, Choi C. Caspase-dependent generation of reactive oxygen species in human astrocytoma cells contributes to resistance to TRAIL-mediated apoptosis. Cell Death Differ 2009; 17:833-45. [PMID: 19876066 DOI: 10.1038/cdd.2009.154] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL), a member of the TNF family of cytokines, causes apoptosis by caspase activation in various cell types, particularly in transformed cells. Numerous types of tumors are relatively resistant to TRAIL-induced cytotoxicity; however, the reasons for this are not yet fully understood. We report here a new signal transduction pathway involving protein kinase Cdelta (PKCdelta), NADPH oxidase 4 (NOX4) and reactive oxygen species (ROS), that inhibits caspase-dependent cell death induced by TRAIL ligation in human malignant astrocytoma cells. In our experiments, TRAIL ligation-induced generation of intracellular ROS through caspase-dependent proteolytic activation of PKCdelta and subsequent activation of the NOX4 complex. Suppression of intracellular ROS induction using various pharmacological inhibitors or PKCdelta- or NOX4-specific RNA interference enhanced the enzymatic activity of caspase-3 by blocking the oxidative modification of its catalytic cysteine residue, resulting in marked augmentation of TRAIL-mediated cell death. These results collectively indicate that TRAIL-induced activation of PKCdelta and NOX4 can modulate TRAIL-mediated apoptosis by promoting oxidative modification of active caspase-3 in a negative-feedback manner.
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294
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Paick S, Lho Y, Baek M, Lee B, Kim H, Choi H. MP-12.10: The Effect of Orchiectomy on Contralateral Testicular Injury after Testicular Torsion in the Rat. Urology 2009. [DOI: 10.1016/j.urology.2009.07.897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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295
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Choi H, Kang W, Kim S, Choi Y, Nam J, Park C. P995 Distribution of high-risk human papillomavirus genotypes among older women. Int J Gynaecol Obstet 2009. [DOI: 10.1016/s0020-7292(09)62482-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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296
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Leung W, Choi H, Lau W, Ng L, Lau E, Lo F, Choy K, Lau T, Tang M, Chin R. Monozygotic Dichorionic Twins Heterokaryotypic for Duplication Chromosome 2q13-q23.3. Fetal Diagn Ther 2009; 25:397-9. [DOI: 10.1159/000236153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2008] [Accepted: 01/27/2009] [Indexed: 11/19/2022]
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297
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Kim S, Hong Y, Kim D, Baek J, Park J, Park C, Choi H, Sohn D, Oh J, Chang H. 6040 A pilot study of neoadjuvant chemoradiation with higher dose enteric-coated tegafur/uracil plus leucovorin for locally advanced rectal cancer. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71135-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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298
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Choi M, Kim J, Choi H, Lee J, Shin S, Kim D, Ro Y. 305: Reliability of Emergency Severity Index Version 4. Ann Emerg Med 2009. [DOI: 10.1016/j.annemergmed.2009.06.336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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299
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Lee J, Choi H, Shin S, Kim D, Ro Y. 309: Validation of Modified Emergency Severity Index Version 4. Ann Emerg Med 2009. [DOI: 10.1016/j.annemergmed.2009.06.340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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300
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Volk ML, Choi H, Warren GJW, Sonnenday CJ, Marrero JA, Heisler M. Geographic variation in organ availability is responsible for disparities in liver transplantation between Hispanics and Caucasians. Am J Transplant 2009; 9:2113-8. [PMID: 19624565 DOI: 10.1111/j.1600-6143.2009.02744.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The aims of this study were to determine whether disparities in waiting list outcomes exist for Hispanics and African Americans during the post-MELD era, and to investigate interactions between disparities and geography. Scientific Registry of Transplant Recipients data were used to compare Hispanics and African Americans to Caucasians listed between 2003 and 2008. Endpoints included (i) receipt of a liver transplant and (ii) death or removal from the waiting list for being too sick or medically unsuitable. Adjustment for possible confounders was performed using multivariate Cox regression, with adjustment for geographic variation using a fixed-effects multilevel model. In multivariate analysis, African Americans have similar hazard of transplantation and death/removal as Caucasians during the post-MELD era. However, Hispanics are less likely to receive a transplant than Caucasians despite adjustment for potential confounders (HR 0.80, 95% CI 0.77-0.83), while having a similar hazard of death/removal. This effect disappeared after adjusting for unequal regional distribution of Hispanics, who represent 8% of patients in donation service areas (DSAs) having median waiting times of < or = 155 days versus 19% in DSAs with median waiting times of >155 days. In conclusion, disparities in liver transplantation exist for Hispanics during the post-MELD era, caused by geographic variation in organ availability.
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