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Lim C, Kang E, Jung JJ, Yeoh H, Chun J, Kim HK, Lee HB, Moon HG, Han W. P187 Comparison of long term oncologic outcome of sentinel lymph node mapping methods, dye-only versus dye and radioisotope in breast cancer following neoadjuvant chemotherapy. Breast 2023. [DOI: 10.1016/s0960-9776(23)00305-3] [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: 03/16/2023] Open
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Kim Y, Kang E, Lee NY, Goo J, Jang S, Lee CT, Kim H. EP01.03-005 Current status of High-risk Smokers Participating in Population-based National Lung Cancer Screening Program in Korea. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.287] [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: 11/15/2022]
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Drozdz M, Doane A, Alkallas R, Desman G, Bareja R, Reilly M, Bang J, Yusupova M, You J, Wang J, Verma A, Aguirre K, Kang E, Watson I, Elemento O, Piskounova E, Merghoub T, Zippin J. 646 A nuclear cAMP microdomain suppresses tumor growth by hippo pathway inactivation. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.657] [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: 10/17/2022]
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Lim K, Kwon H, Cho J, Kim D, Kim S, Kang E. Utility of Liver Imaging Reporting and Data System v2018 Ancillary Features for the Diagnosis of Hepatocellular Carcinoma in LR-4 Lesions Using Contrast-enhanced Magnetic Resonance Imaging. Hong Kong Journal of Radiology 2022. [DOI: 10.12809/hkjr2217340] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- K Lim
- Department of Radiology, Dong-A University Hospital, Busan, Republic of Korea
| | - H Kwon
- Department of Radiology, Dong-A University Hospital, Busan, Republic of Korea
| | - J Cho
- Department of Radiology, Dong-A University Hospital, Busan, Republic of Korea
| | - D Kim
- Department of Radiology, Dong-A University Hospital, Busan, Republic of Korea
| | - S Kim
- Department of Radiology, Dong-A University Hospital, Busan, Republic of Korea
| | - E Kang
- Department of Radiology, Dong-A University Hospital, Busan, Republic of Korea
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Kang E, Kim YG, Oh JS, Hong S, Lee CK, Yoo B, Ahn SM. POS1247 THE EFFECT OF IMMUNOSUPPRESSIVE AGENTS ON ANTIBODY FORMATION AFTER COVID-19 VACCINATION IN RHEUMATOID ARTHRITIS PATIENTS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundThere is still controversy about the efficacy of COVID-19 vaccination and its extent in lowering immunogenicity of Rheumatoid Arthritis (RA) patients. The guideline in whether immunosuppressive agents need to be discontinued before the vaccination is continuously updated because it is considered to lower immunogenicity. Furthermore, there is great discussion on the effectiveness of the COVID-19 booster vaccine and interest in antibody generation in different types of vaccine, as in South Korea there are many patients who were prescribed the mRNA booster vaccine after two doses of ChAdOx1-S nCoV-19 vaccine.ObjectivesThus, we investigated the differences of antibody production between patients who received only two doses of ChAdOx1-S nCoV-19 and those who received the mRNA booster vaccine. Also, antibody production under different types of immunosuppressive agents was analyzed.MethodsFrom October 14, 2021 to January 21, 2022 at a tertiary referral center, two patient groups diagnosed with RA were studied prospectively; one group that completed 1st and 2nd doses of ChAdOx1-S nCoV-19 vaccine, second group that completed mRNA booster vaccine as well as two doses of ChAdOx1-S nCoV-19 vaccine. SARS-CoV-2 antibody testing on the semiquantitative anti-SARS-CoV-2 S enzyme immunoassay was done, and differences in antibody titers were analyzed in patients who received different immunosuppressive agents such as csDMARD, TNF inhibitor, JAK inhibitor, Tocilizumab, Abatacept and Corticosteroid. Statistical analysis with a multivariate logistic regression model was performed.ResultsIn a total of 261 patients, 153 patients had completed two doses of ChAdOx1-S nCoV-19, 108 patients had completed third mRNA booster vaccine. Anti-SARS-CoV-2 RBD antibody positive rate (titer>0.8U/mL) was 97%(149/153) and 99%(107/108) respectively, and only 5 patients showed negative result. In the aspect of high antibody titer(>250U/mL), which is the upper limit of the RBD antibody immunoassay, the result showed rate of 31% (47/153) in the non-booster group and 94%(102/108) in the booster group respectively.Among the different immunosuppressive agents and other clinical aspects, multivariate analysis revealed that corticosteroid use (OR 0.91; 95% CI: 0.86-0.98), older age(OR 4.33; 95% CI: 1.34-13.91), and male gender(OR 0.35; 95% CI 0.16-0.75) were significantly associated with low rate of high antibody titer.Furthermore, out of 14 patients who underwent antibody test twice before and after the mRNA booster vaccine, other than four patients who already showed high titer of >250U/mL before the mRNA booster vaccine, 10 patients showed an increase in titer after the booster vaccine and 7 patients were acquired high titer of >250U/mL.Figure 1.Anti-SARS-CoV RBD antibody titer of two groupsTable 1.Analysis of immunosuppressive agents and other clinical aspects for high antibody titer(>250U/mL) after two doses of ChAdOx1-S nCoV-19Univariate analysisMultivariate analysisParameterOR95% CIp valueOR95% CIp valueClinical features Age0.9170.860-0.9780.0080.9170.857-0.9810.012 Sex3.6741.206-11.1910.0224.3301.348-13.9120.014 DAS 281.1440.670-1.9500.622 Duration0.9300.830-1.0430.214Medications csDMARD1.2730.639-2.5331.273 TNF inhibitor2.2110.795-6.1450.128 JAK inhibitor0.6650.275-1.6070.365 Abatacept0.3680.038-3.6020.391 Tocilizumab1.2640.438-3.6480.665 Corticosteroid0.4720.235-0.9490.0350.3490.163-0.7480.007Medication dose Methotrexate0.9930.919-1.0720.855 Corticosteroid0.8490.719-1.0030.054ConclusionAnti-SARS-CoV-2 RBD antibody positive rate was 97% or more regardless of the mRNA booster vaccination. However, patients who received the mRNA booster vaccine after two doses of ChAdOx1-S nCoV-19 vaccine showed high antibody titer (>250U/mL) three times more than those who did not receive the booster shot.Our findings also showed that corticosteroid use, old age, and male gender is significantly associated with low rate of acquiring high antibody titer.Disclosure of InterestsNone declared
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Kang E, Hong S, Kim YG, Lee CK, Oh JS, Yoo B, Ahn SM. POS0762 LONG-TERM RENAL OUTCOMES OF PATIENTS WITH NON-PROLIFERATIVE LUPUS NEPHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.3393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundAlthough proliferative (class III or IV) lupus nephritis (LN) is the most common finding in the classification of LN, pure membranous (class V) or mesangial (class I or II) LN can occur as a form of LN. Even though non-proliferative LN (class I, II, or V) is a less severe form with good outcomes, data on long-term renal prognosis are limited.ObjectivesThis study investigated the long-term outcomes and prognostic factors in non-proliferative LN.MethodsWe retrospectively reviewed the medical records of patients with systemic lupus erythematosus who were diagnosed with LN class I, II, V or II+IV by kidney biopsy between 1997 and 2021 at a tertiary referral center. Clinical and laboratory data were compared between patients with and without poor renal outcomes. Poor renal outcome was defined as an estimated glomerular filtration rate (eGFR) of < 60 mL/min/1.73 m2 or death due to renal cause. Univariate and multivariate analyses were performed with the Cox proportional hazard model to identify the factors associated with poor renal outcomes.ResultsWe included 71 patients with non-proliferative LN (4: class I; 17: class II; 48: class V, 17; 2: class II+V). Median follow-up duration was 103 months (interquartile range 27–185) and the overall rate of poor renal outcomes at last follow-up was 29% (21/71), including end-stage renal disease (n=2) and renal death (n=1).Univariate analysis indicated that older age (HR 1.05; 95% CI: 1.00–1.09), low eGFR (HR 0.97; 95% CI: 0.95–0.99) and failure to reach complete remission at 6 months (HR 0.332; 95% CI: 0.12–0.92) were significantly associated with poor renal outcomes. Multivariate analysis revealed that low eGFR at 6 months (HR 0.97; 95% CI: 0.95–0.99) was significantly associated with poor renal outcomes.Figure 1.Renal outcomes at last follow upeGFR, estimated glomerular filtration rate (ml/min/1.73m2)Table 1.Univariate and multivariate Cox proportional hazard regression analyses of the factor associated with poor renal outcomesParameterUnivariate analysisMultivariate analysisHR95% CIp valueHR95% CIp valueClinical features Age1.0461.003-1.0910.0361.0020.960-1.0470.921 Sex1.6540.375-7.2980.506 SLEDAI1.0360.965-1.1120.327 Extra renal SLEDAI1.0380.971-1.110.272Renal profiles eGFR at LN diagnosis0.9930.976-1.0110.456 Proteinuria at LN diagnosis1.0001.000-1.0000.444 > 1g/24 hours0.6690.243-1.8410.437 > 3g/24 hours0.6240.229-1.6990.356 eGFR at 6M0.9670.948-0.9860.0010.9680.948-0.9880.002 eGFR at 12M0.9640.947-0.9810.000 Complete remission at 6M0.3320.119-0.9240.0350.5530.179-1.7070.303 Complete remission at 12M0.6670.232-1.9140.451 Transformation1.2460.423-0.7010.692Laboratory data Anti-dsDNA1.0010.999-1.0030.196 C31.0201.000-1.0410.051 C41.0270.969-1.0890.367 Albumin1.1800.661-2.1090.576ClassificationaClass I0.8020.102-6.3030.834Class II1.2980.412-4.0880.656Class V0.8870.308-2.5570.824Class II+V0.0480.000-16850.837Medicationsb ACEi/ARB1.6520.603-4.5280.329 Hydroxychloroquine1.3260.414-4.2420.635 Corticosteroid1.1860.154-9.1080.870 CNI2.4390.464-12.8240.292 MMF3.7880.959-14.9650.057 AZA0.5890.133-2.6110.486a LN classifications were based on the International Society of Pathology/Renal Pathology Society (ISN/RPS) classification.b Medications maintained at least one year since Lupus Nephritis diagnosis.HR, hazard ratio; 95% CI, 95% confidence interval; SLEDAI, systemic lupus erythematosus disease activity index; eGFR, estimated glomerular filtration rate; LN, lupus nephritis; anti-dsDNA, anti-double strand DNA; C3/C4; complement 3/4; ACEi, angiotensin-converting enzyme inhibitor; ARB, angiotensin receptor blocker; CNI, carcineurin inhibitor; MMF, mycophenolate mofetil; AZA, azathioprine.ConclusionPoor renal outcomes occurred in approximately 30% of patients with non-proliferative LN (class I, II or V) after long-term follow-up.Our findings suggest that more active management may be needed for non-proliferative LN, particularly in patients with low eGFR at 6 months.Disclosure of InterestsNone declared
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Kalmus P, Ekanayaka A, Kang E, Baird M, Gierach M. Past the Precipice? Projected Coral Habitability Under Global Heating. Earths Future 2022; 10:e2021EF002608. [PMID: 35865222 PMCID: PMC9287014 DOI: 10.1029/2021ef002608] [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] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 05/04/2023]
Abstract
Coral reefs are rapidly declining due to local environmental degradation and global climate change. In particular, corals are vulnerable to ocean heating. Anomalously hot sea surface temperatures (SSTs) create conditions for severe bleaching or direct thermal death. We use SST observations and CMIP6 model SST to project thermal conditions at reef locations at a resolution of 1 km, a 16-fold improvement over prior studies, under four climate emissions scenarios. We use a novel statistical downscaling method which is significantly more skillful than the standard method, especially at near-coastal pixels where many reefs are found. For each location we present projections of thermal departure (TD, the date after which a location with steadily increasing heat exceeds a given thermal metric) for severe bleaching recurs every 5 years (TD5Y) and every 10 years (TD10Y), accounting for a range of post-bleaching reef recovery/degradation. As of 2021, we find that over 91% and 79% of 1 km2 reefs have exceeded TD10Y and TD5Y, respectively, suggesting that widespread long-term coral degradation is no longer avoidable. We project 99% of 1 km2 reefs to exceed TD5Y by 2034, 2036, and 2040 under SSP5-8.5, SSP3-7.0, and SSP2-4.5 respectively. We project that 2%-5% of reef locations remain below TD5Y at 1.5°C of mean global heating, but 0% remain at 2.0°C. These results demonstrate the importance of further improving ecological projection capacity for climate-vulnerable marine and terrestrial species and ecosystems, including identifying refugia and guiding conservation efforts. Ultimately, saving coral reefs will require rapidly reducing and eliminating greenhouse gas emissions.
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Affiliation(s)
- P. Kalmus
- Jet Propulsion LaboratoryCalifornia Institute of TechnologyPasadenaCAUSA
| | | | - E. Kang
- University of CincinnatiCincinnatiOHUSA
| | - M. Baird
- CSIRO, Oceans and AtmosphereHobartTSAustralia
| | - M. Gierach
- Jet Propulsion LaboratoryCalifornia Institute of TechnologyPasadenaCAUSA
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Kim D, Lee S, Kim E, Kang E, Myung Y, Heo C, Kim I, Jang B. PO-1215 Feasibility of anomaly score detected with deep learning in irradiated breast with reconstruction. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03179-6] [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: 11/26/2022]
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Gillespie BM, Thalib L, Ellwood D, Kang E, Mahomed K, Kumar S, Chaboyer W. Effect of negative-pressure wound therapy on wound complications in obese women after caesarean birth: a systematic review and meta-analysis. BJOG 2021; 129:196-207. [PMID: 34622545 DOI: 10.1111/1471-0528.16963] [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: 06/13/2021] [Revised: 08/15/2021] [Accepted: 09/02/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Obesity is associated with increased surgical-site infection (SSI) following caesarean section (CS). OBJECTIVE To summarise the evidence on the effectiveness of negative-pressure wound therapy (NPWT) for preventing SSI and other wound complications in obese women after CS. SEARCH STRATEGY MEDLINE, Embase, CINAHL, Cochrane CENTRAL databases and ClinicalTrials.gov were systematically searched in March 2021. SELECTION CRITERIA Randomised controlled trials (RCTs) of NPWT compared with standard dressings after CS birth. DATA COLLECTION AND ANALYSIS Pooled effect sizes were calculated using either fixed or random effects models based on heterogeneity. The Cochrane risk of bias and Grading of Recommendations Assessment, Development and Evaluation tools were used to assess the quality of studies and overall quality of evidence. MAIN RESULTS Ten RCTs with 5583 patients were included; studies were published between 2012 and 2021. Nine RCTs with 5529 patients were pooled for the outcome SSI. Meta-analysis results suggest a significant difference favouring the NPWT group (relative risk [RR] 0.79, 95% CI 0.65-0.95, P < 0.01), indicating an absolute risk reduction of 1.8% among those receiving NPWT compared with usual care. The risk of blistering in the NPWT group was significantly higher (RR 4.13, 95% CI 1.53-11.18, P = 0.005). All studies had high risk of bias relative to blinding of personnel/participants. Only 40% of studies reported blinding of outcome assessments and 50% had incomplete outcome data. CONCLUSIONS The decision to use NPWT should be considered both in terms of its potential benefits and its limitations. TWEETABLE ABSTRACT NPWT was associated with fewer SSI in women following CS birth but was not effective in reducing other wound complications.
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Affiliation(s)
- B M Gillespie
- National Health and Medical Research Council Centre of Research Excellence in Wiser Wound Care, Menzies Health Institute, Griffith University & Gold Coast Hospital and Health Service, Gold Coast, Qld, Australia
| | - L Thalib
- Department of Biostatistics, Faculty of Medicine, Istanbul Aydin University, Istanbul, Turkey
| | - D Ellwood
- Griffith University School of Medicine & Dentistry, and Gold Coast University Hospital, Gold Coast, Qld, Australia
| | - E Kang
- Menzies Health Institute, Griffith University, Gold Coast, Qld, Australia
| | - K Mahomed
- Ipswich Hospital, Ipswich, Qld, Australia
| | - S Kumar
- Mater Research Institute, University of Queensland, Brisbane, Qld, Australia.,Mater Mothers' Hospital, South Brisbane, Qld, Australia
| | - W Chaboyer
- National Health and Medical Research Council Centre of Research Excellence in Wiser Wound Care, Menzies Health Institute, Griffith University & Gold Coast Hospital and Health Service, Gold Coast, Qld, Australia
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Navarro-Urrios D, Kang E, Xiao P, Colombano MF, Arregui G, Graczykowski B, Capuj NE, Sledzinska M, Sotomayor-Torres CM, Fytas G. Optomechanical crystals for spatial sensing of submicron sized particles. Sci Rep 2021; 11:7829. [PMID: 33837262 PMCID: PMC8035185 DOI: 10.1038/s41598-021-87558-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/26/2021] [Indexed: 11/09/2022] Open
Abstract
Optomechanical crystal cavities (OMC) have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, bacteria and viruses. In this work we demonstrate the working principle of OMCs operating under ambient conditions as a sensor of submicrometer particles by optically monitoring the frequency shift of thermally activated mechanical modes. The resonator has been specifically designed so that the cavity region supports a particular family of low modal-volume mechanical modes, commonly known as -pinch modes-. These involve the oscillation of only a couple of adjacent cavity cells that are relatively insensitive to perturbations in other parts of the resonator. The eigenfrequency of these modes decreases as the deformation is localized closer to the centre of the resonator.
Thus, by identifying specific modes that undergo a frequency shift that amply exceeds the mechanical linewidth, it is possible to infer if there are particles deposited on the resonator, how many are there and their approximate position within the cavity region. OMCs have rich perspectives for detecting and indirectly analysing biological particles, such as proteins, viruses and bacteria.
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Affiliation(s)
- D Navarro-Urrios
- MIND-IN2UB, Departament d'Enginyeria Electrònica i Biomèdica, Facultat de Física, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain. .,Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.
| | - E Kang
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - P Xiao
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - M F Colombano
- MIND-IN2UB, Departament d'Enginyeria Electrònica i Biomèdica, Facultat de Física, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain.,Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - G Arregui
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - B Graczykowski
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.,Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznanskiego 2, 61614, Poznan, Poland
| | - N E Capuj
- Depto. Física, Universidad de La Laguna, 38200, San Cristóbal de La Laguna, Spain.,Instituto Universitario de Materiales y Nanotecnología, Universidad de La Laguna, 38071, Santa Cruz de Tenerife, Spain
| | - M Sledzinska
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - C M Sotomayor-Torres
- Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.,Catalan Institute for Research and Advances Studies ICREA, 08010, Barcelona, Spain
| | - G Fytas
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.
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Kang E, Lee S, Choi S. A review for the definition of the concept and symptoms of Hwa-Byung. Eur Psychiatry 2021. [PMCID: PMC9480064 DOI: 10.1192/j.eurpsy.2021.1803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IntroductionHwa-Byung is a unique syndrome based on social-cultural background of South Korea. However, the definition of Hwa-Byung has not been established. For example, Hwa-Byung Diagnostic Interview Schedule(Kim, Kwon, Lee & Park, 2004) and Hwa-Byung Scale(Kwon et al., 2008) that are generally used in clinical practices defined Hwa-Byung differently. According to this, there is a slight difference in the symptoms that are measured.ObjectivesThe purpose of our study is to establish the concept and symptoms of Hwa-Byung.MethodsFirst, we review DSM-4, previous literatures and concept of Hwa-Byung in assessment tools. Through this, core features and characteristic symptoms are consisted. Second, a concept of Hwa-Byung that this study constructed is reviewed by clinical psychologists and Korean oriental psychiatrists. Finally, concepts and symptoms are defined.ResultsComprehensive definition of Hwa-Byung is established. Hwa-Byung was identified as a syndrome with symptoms that exploded in the form of anger because emotions such as anger could not be resolved. psychological symptoms include resentment, the baggage of mind, or a representative symptom of han. And physical symptoms include feeling heavy, heat, rush, lumps in the neck or chest. Finally, these physical and psychological symptoms are associated with distinct stressful events.ConclusionsOur study defined the concept and categorized for physical and emotional symptoms of Hwa-Byung. This result suggests that it can contribute to the development and revision of the Hwa-Byung assessment tools.DisclosureNo significant relationships.
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Kobany H, Kang E, Lim P. Pattern of recurrence and survival rates in patients who underwent surgical staging versus non-surgical staging in type II endometrial cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.407] [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: 11/17/2022]
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Paek J, Kang E, Lim P. Enhanced recovery after surgery (ERAS) protocol for early discharge within 12 hours after robotic radical hysterectomy. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.478] [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: 10/23/2022]
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Song H, Kang E, Soh H, Chung H, Chun J, Yoon S, Ijaz U, Koh Y. MULTI-OMICS APPROACHES TO UNDERSTAND GASTRIC MUCOSA-ASSOCIATED LYMPHOID TISSUE (MALT) LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.2631] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- H. Song
- Cancer Research Institute; Seoul National University College of Medicine; Seoul Republic of Korea
| | - E. Kang
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - H. Soh
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - H. Chung
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - J. Chun
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - S. Yoon
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
| | - U. Ijaz
- School of Engineering; University of Glasgow; Glasgow United Kingdom
| | - Y. Koh
- Department of Internal Medicine; Seoul National University Hospital; Seoul Republic of Korea
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Brandt B, Sioulas V, LaVigne K, Shahin M, Bruce S, Black D, Gandhi M, Scalici J, Jones N, Paladugu R, Brown J, Levine M, Naumann R, Mendivil A, Goldstein B, Lim P, Kang E, Cantrell L, Sullivan M, Abu-Rustum N, Leitao M. Multicenter study of minimally invasive surgery versus laparotomy for radical hysterectomy in the management of early-stage cervical cancer: Survival outcomes. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Lim P, Matern T, Kang E. Factors influencing the feasibility and safety of outpatient robotic-assisted hysterectomy for the treatment of endometrial and cervical cancers. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.398] [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: 11/26/2022]
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Ahn S, Kim HJ, Kang E, Kim EK, Kim SH, Kim JH, Kim IA, Park SY. Abstract P4-04-10: Genomic profiling of multifocal breast cancer reveals inter-lesion heterogeneity. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-04-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Multifocal breast cancers are common, and tend to show more aggressive clinical features than unifocal breast cancers. While each foci of multifocal breast cancers with similar histology shares the same hormone and ERBB2 receptor status in most cases, substantial genomic differences among lesions have been reported. We aimed to investigate the potential genomic differences between multifocal breast cancer lesions.
Materials and methods: Twenty-one patients with multifocal breast cancer documented in the resection specimen were included. We selected two lesions with the same histology from each of these 21 patients. Capture-based targeted next generation sequencing was performed using a cancer gene panel consisting of 170 genes for single nucleotide variants (SNV) and small insertions/deletions (Indel), and copy number alterations.
Results: The most frequent mutation was TP53 (38.1%), followed by PIK3CA (28.6%). Pathogenic mutations (SNV and Indel) were detected in 13 of 21 patients, of whom 11 shared oncogenic variants in the two lesions. The remaining two patients had different mutation results in TP53 and PIK3CA, respectively. Genomic heterogeneity of copy number alteration was observed in 6 (28.6%) of 21 patients, including difference of FGFR1 status in two patients and difference of FGFR2 status in one patient.
Conclusion: Despite similar histologic features of multifocal tumors, genomic inter-lesion heterogeneity was identified in about one-fourth of patients. The spatial genomic heterogeneity in multifocal breast cancers needs to be considered in representative sampling and molecular tests for personalized medicine.
Citation Format: Ahn S, Kim HJ, Kang E, Kim E-K, Kim SH, Kim JH, Kim IA, Park SY. Genomic profiling of multifocal breast cancer reveals inter-lesion heterogeneity [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-04-10.
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Affiliation(s)
- S Ahn
- Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - HJ Kim
- Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - E Kang
- Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - E-K Kim
- Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - SH Kim
- Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - JH Kim
- Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - IA Kim
- Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - SY Park
- Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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Kim SH, Koung Jin S, Kim YJ, Ahn S, Park SY, Chae SM, Kang E, Kim EK, Kim IA, Kim JH. Abstract P4-03-10: Identifying germline APOBEC3B deletion using hereditary cancer panel in Korean patients with operable breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-03-10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: APOBEC3B is a cytosine deaminase implicated in host immune defense to virus and mutagenesis in cancer. Germline APOBEC3B deletion is known as risk factors for breast cancer with hypermutation and immune activation from previous database-based studies. This study was aimed to evaluate the incidence of germline APOBEC3B deletion in Korean patients with operable breast cancer.
Method: The copy number variants of germline APOBEC3B deletion was analyzed from leukocyte DNA of 103 breast cancer patients whose bloods were collected in 2009 for pharmacogenomic study at Seoul National University Bundang Hospital. Hybrid-capture based next-generation sequencing panel targeting 53 hereditary cancer genes were used. We also measured tumor infiltrating lymphocytes (TILs) and programmed cell death-ligand 1 (PD-L1) expression in tumor or immune cell with a rabbit monoclonal antibody (E1L3N).
Results: Median age of breast cancer diagnosis was 46 (25-72). In APOBEC3B deletion analysis, 10 (9.7%), 36 (35.0%), and 57 (55.3%) patients were identified as two-copy deletion (A3Bdel/del), one-one copy deletion (A3Bdel/wt) and no deletion (A3Bwt/wt), respectively. In non-APOBEC3B analysis, 9 (8.7%) patients were identified as pathogenic variant: RAD51D(n=1), GJB2(n=1), BRCA1(n=1), BRCA2 (n=2), ATM(n=1), USH2A(n=1), RET(n=1), BARD1(n=1). We observed no significant association between germline APOBEC3B deletion with any clinicopathologic features of breast cancer such as age, family history of cancer, and bilateral breast cancer. Triple-negative subtype was associated with A3Bwt/wt Tumors (35.1% in A3Bwt/wt vs. 5.6% in A3Bdel/wt vs20% in A3Bdel/del; P=0.018). After a median follow-up time of 92.8 months, APOBEC3B deletion was not predictive of recurrence or survival. In patients with sufficient tumor samples for the assessment of TIL (n=63) and PD-1 (n=71), A3Bdel/del tumor was associated with higher TILs (>10%) than other tumor types (6/7 patients in A3Bdel/del vs. 13/24 in A3Bdel/wt vs. 15/32 in A3Bwt/wt: Fisher's exact test in A3Bdel/del, P=0.029). However, PD-L1 expression was not associated with APOBEC3B deletion status (1/7 patients >1% PD-L1 in A3Bdel/del vs. 4/26 in A3Bdel/wt vs. 8/38 in A3Bwt/wt: P=0.901).
Germline APOBEC3B deletion and TILs (n=63) TIL (0-10%)TIL (>10%)TotalA3B(wt/wt)17 (53.1%)15 (46.9%)32A3B(del/wt)11 (45.8%)13 (54.2%)24A3B(del/del)1 (14.3%)6 (85.7%)7
Conclusion: We identified germline APOBEC3B deletion in 9.7% of Korean patients with operable breast cancer. The relationship between A3Bdel/del tumor and high TILs suggests that these tumors might be potential candidates for future immunotherapy.
Citation Format: Kim SH, Koung Jin S, Kim YJ, Ahn S, Park SY, Chae SM, Kang E, Kim E-K, Kim IA, Kim JH. Identifying germline APOBEC3B deletion using hereditary cancer panel in Korean patients with operable breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-03-10.
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Affiliation(s)
- SH Kim
- Seoul National University Bundang Hospital, Seongnam, Korea
| | - S Koung Jin
- Seoul National University Bundang Hospital, Seongnam, Korea
| | - YJ Kim
- Seoul National University Bundang Hospital, Seongnam, Korea
| | - S Ahn
- Seoul National University Bundang Hospital, Seongnam, Korea
| | - SY Park
- Seoul National University Bundang Hospital, Seongnam, Korea
| | - SM Chae
- Seoul National University Bundang Hospital, Seongnam, Korea
| | - E Kang
- Seoul National University Bundang Hospital, Seongnam, Korea
| | - E-K Kim
- Seoul National University Bundang Hospital, Seongnam, Korea
| | - IA Kim
- Seoul National University Bundang Hospital, Seongnam, Korea
| | - JH Kim
- Seoul National University Bundang Hospital, Seongnam, Korea
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Lee J, Cha J, Shin S, Kim Y, Lee S, Cha H, Kim J, Kim D, Kang E, Ahn J, Kim H, Pak K, Yoon J, Park S. Comparison of clinical outcomes between laser-assisted zona pellucida opening and thinning. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.625] [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: 10/28/2022]
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Kim J, Cha J, Lee J, Shin S, Kim Y, Lee S, Cha H, Kim D, Kang E, Ahn J, Kim H, Pak K, Yoon J, Park S. When semen viscosity was overcome, it did not afeect the clinical outcomes of fresh embryo transfer cycles regardless of insemination methods. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.827] [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: 10/28/2022]
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Chae S, Kang KM, Kim HJ, Kang E, Park SY, Kim JH, Kim SH, Kim SW, Kim EK. Neutrophil-lymphocyte ratio predicts response to chemotherapy in triple-negative breast cancer. ACTA ACUST UNITED AC 2018; 25:e113-e119. [PMID: 29719435 DOI: 10.3747/co.25.3888] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Background The neutrophil-lymphocyte ratio (nlr) has been reported to correlate with patient outcome in several cancers, including breast cancer. We evaluated whether the nlr can be a predictive factor for pathologic complete response (pcr) after neoadjuvant chemotherapy (nac) in patients with triple-negative breast cancer (tnbc). Methods We analyzed the correlation between response to nac and various factors, including the nlr, in 87 patients with tnbc who underwent nac. In addition, we analyzed the association between the nlr and recurrence-free survival (rfs) in patients with tnbc. Results Of the 87 patients, 25 (28.7%) achieved a pcr. A high Ki-67 index and a low nlr were significantly associated with pcr. The pcr rate was higher in patients having a high Ki-67 index (≥15%) than in those having a low Ki-67 index (35.7% vs. 0%, p = 0.002) and higher in patients having a low nlr (≤1.7) than in those having a high nlr (42.1% vs. 18.4%, p = 0.018). In multiple logistic analysis, a low nlr remained the only predictive factor for pcr (odds ratio: 4.274; p = 0.008). In the survival analysis, the rfs was significantly higher in the low nlr group than in the high nlr group (5-year rfs rate: 83.7% vs. 66.9%; log-rank p = 0.016). Conclusions Our findings that the nlr is a predictor of pcr to nac and also a prognosticator of recurrence suggest an association between response to chemotherapy and inflammation in patients with tnbc. The pretreatment nlr can be a useful predictive and prognostic marker in patients with tnbc scheduled for nac.
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Affiliation(s)
| | | | | | | | | | - J H Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam; and
| | - S H Kim
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam; and
| | - S W Kim
- Department of Surgery, Daerim St. Mary's Hospital, Seoul, Republic of Korea
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Yousefi M, Pepin D, Kang E, Zhu L, Willing B, Gruenheid S. A17 DIETARY MODULATION OF THE IMMUNE RESPONSE TO CITROBACTER RODENTIUM. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy009.017] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M Yousefi
- Research Center on Complex Traits, Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - D Pepin
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - E Kang
- Research Center on Complex Traits, Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - L Zhu
- Research Center on Complex Traits, Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - B Willing
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - S Gruenheid
- Research Center on Complex Traits, Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
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Kim J, Kim J, Kim HC, Kim K, Lee J, Kang E, Kim H, Min B, Ronco C. Three-Dimensional Dialysate flow Analysis in a Hollow-Fiber Dialyzer by Perfusion Computed Tomography. Int J Artif Organs 2018; 31:553-60. [DOI: 10.1177/039139880803100611] [Citation(s) in RCA: 4] [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] [Indexed: 11/17/2022]
Abstract
Perfusion computed tomography (PCT) is a means to rapidly and easily evaluate cerebral perfusion in patients presenting with acute stroke symptoms, which provides insights into capillary-level hemodynamics. In this study, we used PCT to analyze the 3-dimensional dialysate flow in a low-flux hemodialyzer equipped with a standard fiber bundle. The dynamic CT studies were performed with 64-channel multi-detector row CT (MDCT) at a dialysate flow rate of 500 ml/min and a 1.0 ml/sec injection rate of contrast agent. Central volume principle was used to calculate hydrodynamic parameters by deconvolution of time-density curves (TDCs). Functional maps of dialysate flow (DF), dialysate volume (DV), and mean transit time (MTT) could quantitatively describe the dialysate flow maldistribution, variations in fiber packing, and perfusion pressure distribution in a hemodialyzer, respectively. PCT by means of analysis was able to overcome the limitations of conventional imaging techniques for analyzing dialysate flow distributions in hollow-fiber dialyzers. Not only local hydrodynamic phenomena at microscopic level but also macroscopic flow behavior of dialysate were visualized quantitatively. Therefore, we concluded that PCT is a quantitative analysis method to provide better insights into hydrodynamics of hollow-fiber dialyzers and is expected to contribute to optimization of artificial kidneys.
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Affiliation(s)
- J.C. Kim
- Interdisciplinary Program in Bioengineering Major, Seoul National University, Seoul
| | - J.H. Kim
- Interdisciplinary Program in Bioengineering Major, Seoul National University, Seoul
| | - H.-C. Kim
- Department of Radiology, Seoul National University Hospital, Seoul
| | - K.G. Kim
- Department of Biomedical Engineering, Division of Basic and Applied Sciences, National Cancer Center, Gyeong-Gi-Do - Republic of Korea
| | - J.C. Lee
- Interdisciplinary Program in Bioengineering Major, Seoul National University, Seoul
| | - E. Kang
- Department of Internal Medicine, Chung-Ang University Hospital, Seoul
| | - H.C. Kim
- Department of Biomedical Engineering, College of Medicine, Seoul National University, Seoul
- Institute of Medical & Biological Engineering, Medical Research Center, Seoul National University, Seoul - Republic of Korea
| | - B.G. Min
- Department of Biomedical Engineering, College of Medicine, Seoul National University, Seoul
- Institute of Medical & Biological Engineering, Medical Research Center, Seoul National University, Seoul - Republic of Korea
| | - C. Ronco
- Department of Nephrology, Dialysis and Transplantation, St. Bortolo Hospital, International Renal Research Institute Vicenza (IRRIV), Vicenza - Italy
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Affiliation(s)
- Y. Kim
- Kyunghee University, Yongin-si, Korea (the Republic of),
| | - H. Lee
- University of Minnesota, Minnesota, Minnesota,
| | - Y. Oh
- Kyunghee University, Yongin-si, Korea (the Republic of),
| | - E. Kang
- Korea Institute for Health and Social Affairs, Sejong- si, Korea (the Republic of)
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26
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Kim H, Kang E, Kim E, Jang Y. 117PD_PR Survival benefit of surgical removal for the primary tumor in stage IV breast cancer patients. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw577.001] [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: 11/12/2022] Open
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27
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Kim H, Kang E, Kim E, Jang Y. 117PD_PR Survival benefit of surgical removal for the primary tumor in stage IV breast cancer patients. Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00276-3] [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: 11/26/2022] Open
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28
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Jung J, Kang E, Gwak JM, Seo AN, Park SY, Lee AS, Baek H, Chae S, Kim EK, Kim SW. Association between basal-like phenotype and BRCA1/2 germline mutations in Korean breast cancer patients. ACTA ACUST UNITED AC 2016; 23:298-303. [PMID: 27803593 DOI: 10.3747/co.23.3054] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION BRCA mutation testing allows index patients and their families to be provided with appropriate cancer risk-reduction strategies. Because of the low prevalence of BRCA mutations in unselected breast cancer patients and the high cost of genetic testing, it is important to identify the subset of women who are likely to carry BRCA mutations. In the present study, we examined the association between BRCA1/2 germline mutations and the immunohistochemical features of breast cancer. METHODS In a retrospective review of 498 breast cancer patients who had undergone BRCA testing at Seoul National University Bundang Hospital between July 2003 and September 2012, we gathered immunohistochemical information on estrogen receptor (er), progesterone receptor (pr), her2 (human epidermal growth factor receptor 2), cytokeratin 5/6, egfr (epidermal growth factor receptor), and p53 status. RESULTS Among the 411 patients eligible for the study, 50 (12.2%) had germline mutations in BRCA1 or BRCA2. Of the 93 patients with triple-negative breast cancer (tnbc), 25 with BRCA1/2 mutations were identified (BRCA1, 20.4%; BRCA2, 6.5%). On univariate analysis, er, pr, cytokeratin 5/6, egfr, and tnbc were found to be related to BRCA1 mutations, but on multivariate analysis, only tnbc was significantly associated with BRCA1 mutations. Among patients with early-onset breast cancer or with a family history of breast or ovarian cancer, BRCA1 mutations were significantly more prevalent in the tnbc group than in the non-tnbc group. CONCLUSIONS In the present study, tnbc was the only independent predictor of BRCA1 mutation in patients at high risk of hereditary breast and ovarian cancers. Other histologic features of basal-like breast cancer did not improve the estimate of BRCA1 mutation risk.
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Affiliation(s)
- J Jung
- Department of Surgery, Eulji University Hospital, Daejeon
| | - E Kang
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - J M Gwak
- Department of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - A N Seo
- Department of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - S Y Park
- Department of Pathology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - A S Lee
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - H Baek
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - S Chae
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - E K Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam
| | - S W Kim
- Department of Surgery, Daerim St. Mary's Hospital, Seoul, Republic of Korea
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Burdorf L, Riner A, Rybak E, Salles II, De Meyer SF, Shah A, Quinn KJ, Harris D, Zhang T, Parsell D, Ali F, Schwartz E, Kang E, Cheng X, Sievert E, Zhao Y, Braileanu G, Phelps CJ, Ayares DL, Deckmyn H, Pierson RN, Azimzadeh AM, Dandro A, Karavi K. Platelet sequestration and activation during GalTKO.hCD46 pig lung perfusion by human blood is primarily mediated by GPIb, GPIIb/IIIa, and von Willebrand Factor. Xenotransplantation 2016; 23:222-236. [PMID: 27188532 DOI: 10.1111/xen.12236] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 10/05/2015] [Accepted: 03/17/2016] [Indexed: 12/11/2022]
Abstract
BACKGROUND Here, we ask whether platelet GPIb and GPIIb/IIIa receptors modulate platelet sequestration and activation during GalTKO.hCD46 pig lung xenograft perfusion. METHODS GalTKO.hCD46 transgenic pig lungs were perfused with heparinized fresh human blood. Results from perfusions in which αGPIb Fab (6B4, 10 mg/l blood, n = 6), αGPIIb/IIIa Fab (ReoPro, 3.5 mg/l blood, n = 6), or both drugs (n = 4) were administered to the perfusate were compared to two additional groups in which the donor pig received 1-desamino-8-d-arginine vasopressin (DDAVP), 3 μg/kg (to pre-deplete von Willebrand Factor (pVWF), the main GPIb ligand), with or without αGPIb (n = 6 each). RESULTS Platelet sequestration was significantly delayed in αGPIb, αGPIb+DDAVP, and αGPIb+αGPIIb/IIIa groups. Median lung "survival" was significantly longer (>240 vs. 162 min reference, p = 0.016), and platelet activation (as CD62P and βTG) were significantly inhibited, when pigs were pre-treated with DDAVP, with or without αGPIb Fab treatment. Pulmonary vascular resistance rise was not significantly attenuated in any group, and was associated with residual thromboxane and histamine elaboration. CONCLUSIONS The GPIb-VWF and GPIIb/IIIa axes play important roles in platelet sequestration and coagulation cascade activation during GalTKO.hCD46 lung xenograft injury. GPIb blockade significantly reduces platelet activation and delays platelet sequestration in this xenolung rejection model, an effect amplified by adding αGPIIb/IIIa blockade or depletion of VWF from pig lung.
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Affiliation(s)
- L Burdorf
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - A Riner
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - E Rybak
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - I I Salles
- Laboratory for Thrombosis Research, IRF-Ls, Kulak KU Leuven, Belgium.,Centre for Hematology, Imperial College London, UK
| | - S F De Meyer
- Laboratory for Thrombosis Research, IRF-Ls, Kulak KU Leuven, Belgium
| | - A Shah
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - K J Quinn
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - D Harris
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - T Zhang
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - D Parsell
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - F Ali
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - E Schwartz
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - E Kang
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - X Cheng
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - E Sievert
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - Y Zhao
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - G Braileanu
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - C J Phelps
- Revivicor, Inc., Blacksburg, VA, United States
| | - D L Ayares
- Revivicor, Inc., Blacksburg, VA, United States
| | - H Deckmyn
- Laboratory for Thrombosis Research, IRF-Ls, Kulak KU Leuven, Belgium
| | - R N Pierson
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
| | - A M Azimzadeh
- Division of Cardiac Surgery, Department of Surgery, University of Maryland School of Medicine, and VA Maryland Health Care System, Baltimore, MD, United States
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Abstract
Transoral approach to the cervico-medullary junction is a well-established procedure. However oropharyngeal complications in the form of soft tissue morbidity postoperatively do occur. We report a case of a teenage boy with traumatic quadriparesis secondary to compression of the cervico-medullary junction by an os odontoideum. Decompression was done via transoral approach through a tubular retractor system, hence obviating the need for the splitting or separate retraction of the soft palate and minimised the damage and violation of surrounding soft tissues. His neurological status improved and he was able to ambulate with support on fourth post-operative day with no soft tissue morbidity in the oral cavity. To our knowledge this is the first case reported using this technique. We conclude that adoption of this method would improve the traditional transoral approach and reduce the oropharyngeal complications.
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Affiliation(s)
- M H Ariffin
- Department of Orthopaedics and Traumatology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - M M Ashfaq
- Department of Orthopaedics and Traumatology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
| | - E Kang
- Department of Orthopaedics and Traumatology, Universiti Kebangsaan Malaysia Medical Centre, Kuala Lumpur, Malaysia
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Choi JC, Kim J, Kang E, Choi JH, Park WY, Choi YS, Cha J, Han C, Park SK, Kim MH, Lee GH, Do HJ, Jung SW, Lee JM. Step-down vs. step-up noxious stimulation: differential effects on pain perception and patterns of brain activation. Acta Anaesthesiol Scand 2016; 60:117-27. [PMID: 26355384 DOI: 10.1111/aas.12607] [Citation(s) in RCA: 3] [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: 01/21/2015] [Revised: 07/13/2015] [Accepted: 07/29/2015] [Indexed: 01/12/2023]
Abstract
BACKGROUND We hypothesize that pain and brain responses are affected by changes in the presentation sequence of noxious stimuli that are, overall, identical in intensity and duration. METHODS During functional magnetic resonance imaging (fMRI) scanning, 21 participants experienced three patterns of noxious stimulation: Up-type (step-up noxious stimulation, 15 s), Down-type (step-down noxious stimulation, 15 s), and Down-up-type (decreasing and increasing pattern of noxious stimulation, 15 s). The total intensity and duration of the three noxious stimulation patterns were identical, but the stimulation sequences were different. RESULTS Pain and unpleasantness ratings in the Down- and Down-up-type noxious stimulations were lower than in the Up-type noxious stimulation. The left prefrontal cortex [(PFC, BA (Brodmann area) 10, (-45, 50, 1)] was more highly activated in the Down- and Down-up-type noxious stimulations than in the Up-type noxious stimulation. The S1, S2, insula, bilateral PFC (BA 46), and midcingulate cortex were more highly activated in the Up-type noxious stimulation than in the Down-type noxious stimulation. PFC BA 10 was located at an inferior level compared to the bilateral PFC BA 46 (Z axis = 1 for BA 10, compared to 22 and 25 for the right and left BA 46, respectively). When cortisol level was increased, the left hippocampal cortex, along with the left parahippocampal cortex, was greatly activated for the Up-type noxious stimulation. CONCLUSION When pain cannot be avoided in clinical practice, noxious stimuli should be applied to patients in a step-down pattern that delivers the most intense pain first and the least intense pain last.
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Affiliation(s)
- J. C. Choi
- Department of Anesthesiology and Pain Medicine; Intensive Care Unit; Brain Research Group; Yonsei University Wonju College of Medicine; Wonju South Korea
| | - J. Kim
- Department of Psychology; Kangwon National University; Chuncheon South Korea
| | - E. Kang
- Department of Psychology; Kangwon National University; Chuncheon South Korea
| | - J.-H. Choi
- Julie English Institute; Wonju South Korea
| | - W. Y. Park
- Department of Anesthesiology and Pain Medicine; Yonsei University Wonju College of Medicine; Wonju South Korea
| | - Y.-S. Choi
- Department of Electronic Engineering; Gangneung-Wonju National University; Gangneung South Korea
| | - J. Cha
- Department of Biomedical Engineering; Hanyang University; Seoul South Korea
| | - C. Han
- University of Manchester Medical School; Manchester UK
| | - S. K. Park
- Yonsei Saebom Medical Clinic; Seongdong-gu Seoul South Korea
| | - M. H. Kim
- Medical Library; Yonsei University Wonju College of Medicine; Wonju South Korea
| | - G. H. Lee
- Instructional Department; Yonsei University Wonju College of Medicine; Wonju South Korea
| | - H.-J. Do
- Department of Anesthesiology and Pain Medicine; Yonsei University Wonju College of Medicine; Wonju South Korea
| | - S. W. Jung
- Department of Anesthesiology and Pain Medicine; Yonsei University Wonju College of Medicine; Wonju South Korea
| | - J.-M. Lee
- Department of Biomedical Engineering; Hanyang University; Seoul South Korea
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Baek H, Kim EK, Lee A, Chae S, Kang E, Kim SW. 91P A survey of margin status evaluation in the Korean Breast Cancer Society member. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv519.40] [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: 11/15/2022] Open
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Park DY, Mun CH, Kang E, No DY, Ju J, Lee SH. One-stop microfiber spinning and fabrication of a fibrous cell-encapsulated scaffold on a single microfluidic platform. Biofabrication 2015; 6:024108. [PMID: 24999513 DOI: 10.1088/1758-5082/6/2/024108] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This paper provides a method for microscale fiber spinning and the in situ construction of a 3D fibrous scaffold on a single microfluidic platform. This platform was also used to fabricate a variety of fibrous scaffolds with diverse compositions without the use of complicated devices. We explored the potential utility of the fibrous scaffolds for tissue engineering applications by constructing a fibrous scaffold encapsulating primary hepatocytes. The cells in scaffold were cultured over seven days and maintained higher viability comparing with 3D alginate non-fibrous block. The main advantage of this platform is that the fibrous structure used to form a scaffold can be generated without damaging the mechanically weak alginate fibers or encapsulated cells because all procedures are performed in a single platform without the intervention of the operator. In addition, the proposed fibrous scaffold permitted high diffusion capability of molecules, which enabled better viability of encapsulated cells than non-fibrous scaffold even in massive cell culture.
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Choi JC, Kim J, Kang E, Lee JM, Cha J, Kim YJ, Lee HG, Choi JH, Yi DJ. Brain mechanisms of pain relief by transcutaneous electrical nerve stimulation: A functional magnetic resonance imaging study. Eur J Pain 2015; 20:92-105. [PMID: 25847717 DOI: 10.1002/ejp.696] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2015] [Indexed: 11/11/2022]
Abstract
BACKGROUND Although the exact mechanism of TENS pain relief is unknown, it is believed that TENS impulses interrupt nociceptive signals at the dorsal horn of the spinal cord. AIMS To evaluate the hypotheses that during pain caused by noxious stimuli, brain responses, temporal summation and brain functional connectivity are modulated by TENS, and that mechanisms of pain relief by TENS differ between men and women. METHODS During fMRI scanning, the same noxious stimuli were delivered to each participant in pain-only and pain+TENS conditions. In the pain-only condition, noxious stimuli were presented without TENS. In the pain+TENS condition, participants received noxious stimuli and TENS concurrently. Participants were initially presented with TENS at an intensity that was just below that causing discomfort. TENS intensity was presented in a step-wise fashion to prevent temporal summation from repetitive noxious stimuli. RESULTS Pain and unpleasantness ratings were significantly higher in the pain-only than the pain+TENS condition. With non-painful TENS, primary and secondary somatosensory and parietal cortices were activated, and temporal summation from repetitive noxious stimuli was prevented. Periaqueductal gray (PAG) and lateral prefrontal cortex functional connectivity was increased by TENS, and modulated by testosterone and cortisol. Women reported greater pain during TENS than men, and showed greater activation in the temporoparietal junction cortex and increased PAG functional connectivity with the orbitofrontal cortex. CONCLUSION TENS led to pain reduction, probably due to activation of the descending pain-inhibitory pathway, indicating that this TENS method may be applied in clinical practice.
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Affiliation(s)
- J C Choi
- Department of Anesthesiology and Pain Medicine, Intensive Care Unit, Brain Research Group, Yonsei University Wonju College of Medicine, South Korea
| | - J Kim
- Department of Psychology, Kangwon National University, Chuncheon, South Korea
| | - E Kang
- Department of Psychology, Kangwon National University, Chuncheon, South Korea
| | - J-M Lee
- Department of Biomedical Engineering, Hanyang University, Seoul, South Korea
| | - J Cha
- Department of Biomedical Engineering, Hanyang University, Seoul, South Korea
| | - Y J Kim
- Department of Radiology, Yonsei University Wonju College of Medicine, South Korea
| | - H G Lee
- Department of Radiology, Yonsei University Wonju College of Medicine, South Korea
| | - J-H Choi
- Julie English Institute, Wonju, South Korea
| | - D-J Yi
- Department of Psychology, Yonsei University, Seoul, Korea
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Burdorf L, Riner A, Rybak E, Harris D, Dahi S, Zhang T, Parsell D, Ali F, Schwartz E, Kang E, Cheng X, Sievert E, Braileanu G, Quinn K, Shah A, Shah A, De Meyer S, Deckmyn H, Phelps C, Ayares D, Pierson R, Azimzadeh A. Blockade of Glycoproteins Ib and IIb/IIIa Reduces Platelet Sequestration and PVR Rise in a Xenogeneic Lung Perfusion Model. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.766] [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: 11/15/2022] Open
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Burdorf L, Rybak E, Zhang T, Harris D, Dahi S, Kubicki N, Woodall J, Parsell D, Cheng X, Schwartz E, Kang E, Sievert E, Braileanu G, Phelps C, Ayares D, Azimzadeh A, Pierson R. Extended Life-Support Duration in a Xenogeneic Lung Transplantation Model Using Pigs With Multiple Genetic Modifications. J Heart Lung Transplant 2015. [DOI: 10.1016/j.healun.2015.01.767] [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: 10/23/2022] Open
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Lee SH, Kim SM, Jang M, Yun BL, Kang E, Kim SW, Park SY, Ahn HS, Chang JH, Yoo Y, Song TK, Moon WK. Role of second-look ultrasound examinations for MR-detected lesions in patients with breast cancer. Ultraschall Med 2015; 36:140-148. [PMID: 25750138 DOI: 10.1055/s-0034-1399143] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
PURPOSE To assess the clinical value of second-look ultrasound (US) examination for the evaluation of additional enhancing lesions detected on magnetic resonance (MR) imaging. MATERIALS AND METHODS Between May 2008 and February 2011, 794 consecutive patients with histologically confirmed breast cancer underwent breast MR imaging. We included 101 patients with 132 additional enhancing breast lesions detected on MR imaging who underwent second-look US. The imaging features and lesion category according to the Breast Imaging and Reporting and Data System (BI-RADS) were assessed with MR and US imaging, respectively. RESULTS According to the BI-RADS system, 67 lesions (50.8 %) were classified as category 0, 33 lesions (25.0 %) as category 3, and 32 lesions (24.2 %) as category 4. Of the 67 indeterminate lesions on MR imaging, 34 (50.7 %) were demonstrated on second-look US. 11 of these 34 lesions showed suspicious sonographic features, including 1 lesion that showed malignancy (9.1 %, 1/11). Most of the suspicious lesions on MR imaging (26 of 32 BI-RADS category 4 lesions, 81.3 %) were demonstrated on second-look US, and 17 were malignant (65.4 %, 17/26). Of the 6 BI-RADS category 4 lesions without sonographic correlation, 1 was malignant (16.7 %, 1/6). CONCLUSION Second-look US examination was useful for evaluating MR-detected lesions in patients with breast cancer.
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MESH Headings
- Adult
- Aged
- Biopsy, Large-Core Needle
- Breast/pathology
- Breast Neoplasms/classification
- Breast Neoplasms/diagnosis
- Breast Neoplasms/pathology
- Carcinoma, Ductal, Breast/classification
- Carcinoma, Ductal, Breast/diagnosis
- Carcinoma, Ductal, Breast/pathology
- Carcinoma, Intraductal, Noninfiltrating/classification
- Carcinoma, Intraductal, Noninfiltrating/diagnosis
- Carcinoma, Intraductal, Noninfiltrating/pathology
- Carcinoma, Lobular/classification
- Carcinoma, Lobular/diagnosis
- Carcinoma, Lobular/pathology
- Female
- Humans
- Image Interpretation, Computer-Assisted
- Imaging, Three-Dimensional
- Magnetic Resonance Imaging
- Middle Aged
- Neoplasm Invasiveness/diagnosis
- Neoplasm Invasiveness/pathology
- Neoplasms, Multiple Primary/classification
- Neoplasms, Multiple Primary/diagnosis
- Neoplasms, Multiple Primary/pathology
- Retrospective Studies
- Sensitivity and Specificity
- Ultrasonography, Interventional
- Ultrasonography, Mammary
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Affiliation(s)
- S H Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea, Republic of
| | - S M Kim
- Radiology, Seoul National University Bundang Hosipital, Seongnam, Korea, Republic of
| | - M Jang
- Radiology, Seoul National University Bundang Hosipital, Seongnam, Korea, Republic of
| | - B L Yun
- Radiology, Seoul National University Bundang Hosipital, Seongnam, Korea, Republic of
| | - E Kang
- Surgery, Seoul National University Bundang Hospital, Seongnam-si, Korea, Republic of
| | - S W Kim
- Surgery, Seoul National University Bundang Hospital, Seongnam-si, Korea, Republic of
| | - S Y Park
- Pathology, Seoul National University Bundang Hospital, Seongnam-si, Korea, Republic of
| | - H S Ahn
- Radiology, Chung-Ang University Hospital, Seoul, Korea, Republic of
| | - J H Chang
- Department of Electronic Engineering, Sogang University, Seoul, Korea, Republic of
| | - Y Yoo
- Department of Electronic Engineering, Sogang University, Seoul, Korea, Republic of
| | - T K Song
- Department of Electronic Engineering, Sogang University, Seoul, Korea, Republic of
| | - W K Moon
- Department of Radiology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea, Republic of
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Park HY, Kim JH, Choi S, Kang E, Oh S, Kim JY, Kim SW. Psychological effects of a cosmetic education programme in patients with breast cancer. Eur J Cancer Care (Engl) 2015; 24:493-502. [PMID: 25651297 DOI: 10.1111/ecc.12290] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/15/2014] [Indexed: 12/24/2022]
Abstract
Treatments for breast cancer often include interventions related to psychosocial issues such as negative body image, loss of femininity, and low self-esteem. We identified the psychological effects of a cosmetics education programme in patients with breast cancer. Cosmetic programme is a specific care designed to help patients handle appearance-related side effects. Thirty-one women with breast cancer at a university hospital in South Korea who received a cosmetics education programme were compared with 29 subjects in a control group who received the treatment as usual. Psychological factors including distress, self-esteem, and sexual functioning were assessed three times (before and after the programme, and at the 1-month follow-up). After the programme, patients in the treatment group were significantly less likely than those in the control group to rely on distress (P = 0.038) and avoidance coping (P < 0.001) but not on self-esteem. The mean scores in the treatment group for sexual functioning were higher than those in the control group after the treatment. Our results suggest the potential usefulness of a brief cosmetics education programme for reducing distress and reliance on negative coping strategies. Implementing a cosmetics programme for patients with breast cancer may encourage patients to control negative psychological factors.
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Affiliation(s)
- H Y Park
- Department of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
| | - J H Kim
- Mental Health & Behavioral Medicine Services for Clinical Departments, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
| | - S Choi
- Department of Psychology, Duksung Women's University, Seoul
| | - E Kang
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
| | - S Oh
- Department of Biostatistics, Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul
| | - J Y Kim
- Department of Family Medicine, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
| | - S W Kim
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam-si, Gyeonggi-do
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Seo T, Song M, Kang E, Yong H, Seo J, Choi Y. Central vein stenosis in breast cancer patients after totally implantable venous access port placement. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.580] [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: 11/27/2022] Open
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Antonelli K, Kang E, Williams C. Through the fence or behind the wall: Occlusion type affects object memory. J Vis 2014. [DOI: 10.1167/14.10.36] [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: 11/24/2022] Open
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Lee HJ, Shin JH, Kang E, Jung J, Kim DK. Vitamin B and C levels of homeless patients who visit the emergency department with alcohol ingestion. Crit Care 2014. [PMCID: PMC4069516 DOI: 10.1186/cc13618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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42
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Lee HJ, Kang E, Shin JH. Effectiveness of noncontrast abdominal multidetector CT for evaluating the patient with renal insufficiency in the emergency department. Crit Care 2014. [PMCID: PMC4068301 DOI: 10.1186/cc13268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Sun Y, Kim SW, Heo CY, Kim D, Hwang Y, Yom CK, Kang E. Comparison of Quality of Life Based on Surgical Technique in Patients with Breast Cancer. Jpn J Clin Oncol 2013; 44:22-7. [DOI: 10.1093/jjco/hyt176] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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44
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Jang MH, Kitabatake Y, Kang E, Jun H, Pletnikov MV, Christian KM, Hen R, Lucae S, Binder EB, Song H, Ming GI. Secreted frizzled-related protein 3 (sFRP3) regulates antidepressant responses in mice and humans. Mol Psychiatry 2013; 18. [PMID: 23207650 PMCID: PMC3970729 DOI: 10.1038/mp.2012.158] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M-H Jang
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurologic Surgery, Department of Biochemistry and Molecular Biology, Mayo College of Medicine, Rochester, MN, USA
| | - Y Kitabatake
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Pediatrics, Osaka University School of Medicine, Osaka, Japan
| | - E Kang
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Pre-doctoral Program in Human Genetics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - H Jun
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - MV Pletnikov
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD, USA,The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - KM Christian
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - R Hen
- Department of Psychiatry, Columbia University, New York, NY, USA,The New York State Psychiatric Institute, New York, NY, USA
| | - S Lucae
- Max Planck Institute of Psychiatry, Munich, Germany
| | - EB Binder
- Max Planck Institute of Psychiatry, Munich, Germany,Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - H Song
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Pre-doctoral Program in Human Genetics, Johns Hopkins University School of Medicine, Baltimore, MD, USA,The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - G-I Ming
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA,Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA,The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Choi JW, Kang E, Kwon OJ, Yun TJ, Park HK, Kim PH, Kim SW, Kim JH, Yun CO. Local sustained delivery of oncolytic adenovirus with injectable alginate gel for cancer virotherapy. Gene Ther 2013; 20:880-92. [PMID: 23514707 DOI: 10.1038/gt.2013.10] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 01/02/2013] [Accepted: 02/05/2013] [Indexed: 01/09/2023]
Abstract
Adenoviruses (Ad) have been investigated for their efficacy in reducing primary tumors after local intratumoral administration. Despite high Ad concentrations and repetitive administration, the therapeutic efficacy of Ad has been limited because of rapid dissemination of the Ad into the surrounding normal tissues and short maintenance of Ad biological activity in vivo. To maximize the therapeutic potential of Ad-mediated gene therapeutics, we investigated the efficacy of local, sustained Ad delivery, using an injectable alginate gel matrix system. The biological activity of Ad loaded in alginate gel was prolonged compared with naked Ad, as evidenced by the high green fluorescent protein gene transduction efficiency over an extended time period. Moreover, oncolytic Ad encapsulated in alginate gel elicited 1.9- to 2.4-fold greater antitumor activity than naked Ad in both C33A and U343 human tumor xenograft models. Histological and quantitative PCR analysis confirmed that the oncolytic Ad/alginate gel matrix system significantly increased preferential replication and dissemination of oncolytic Ad in a larger area of tumor tissue in vivo. Taken together, these results show that local sustained delivery of oncolytic Ad in alginate gel augments therapeutic effect through selective infection of tumor cells, sustained release and prolonged maintenance of Ad activity.
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Affiliation(s)
- J-W Choi
- Graduate Program for Nanomedical Science, Yonsei University, Seoul, Republic of Korea
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Park SY, Choi Y, Kim EJ, Lee HE, Lee HJ, Kang E, Kim SW. Abstract P5-04-03: Epithelial-mesenchymal transition is associated with in situ to invasive transition of basal-like breast cancer. Cancer Res 2012. [DOI: 10.1158/0008-5472.sabcs12-p5-04-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
BACKGROUND: Epithelial-mesenchymal transition (EMT) is known to play an important role in breast cancer invasion and metastatic progression and to be associated with cancer stem cells and basal-like subtype. However, its role in the progression of in situ to invasive breast carcinoma is uncertain. To investigate this question, we evaluated the difference in the expression of EMT-related markers between pure ductal carcinoma in situ (DCIS) and invasive carcinomas according to molecular subtype.
METHODS: We performed immunohistochemical analyses of EMT-related markers [expression of vimentin, smooth muscle actin (SMA), osteonectin and N-cadherin, translocation of β-catenin and loss of E-cadherin] and breast cancer stem cell markers (CD44+/CD24−, ALDH1) in 320 invasive carcinomas and 179 pure DCIS of breast using tissue microarrays. We also analyzed 39 basal-like invasive cancers with adjacent DCIS component to determine the difference in the expression of EMT-related markers in the invasive and DICS component within individual cases.
RESULTS: In invasive carcinomas, vimentin, SMA and osteonectin were highly expressed in basal-like subtype. In addition, loss of E-cadherin and translocation of β-catenin were most frequently found in basal-like subtype. Furthermore, there were positive correlations between the expression of EMT-related markers and stem cell markers (CD44+/CD24- and ALDH1). However, there was no significant difference in the expression of EMT-related markers according to molecular subtype in pure DCIS. When comparing invasive carcinoma with pure DCIS, expression of EMT-related markers was significantly higher in invasive carcinoma than in pure DCIS. Subgroup analysis revealed higher expression of EMT-related markers in invasive carcinoma than in DCIS in basal-like subtype, but not in non-basal-like subtypes. Moreover, in 39 basal-like invasive cancers with adjacent DCIS, expression of mesenchymal markers was increased in invasive component compared to DCIS component.
CONCLUSIONS: Our study confirmed that EMT is an intrinsic characteristic of basal-like subtype and is associated with breast cancer with stem cell phenotype. However, increased expression of EMT-related markers in invasive carcinoma compared to pure DCIS, especially in basal-like subtype, and in the invasive component of basal-like invasive carcinoma with DCIS component also suggests a role of EMT in the transition of in situ- to invasive carcinoma in basal-like breast cancer.
Citation Information: Cancer Res 2012;72(24 Suppl):Abstract nr P5-04-03.
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Affiliation(s)
- SY Park
- Seoul National University College of Medicine, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - Y Choi
- Seoul National University College of Medicine, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - EJ Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - HE Lee
- Seoul National University College of Medicine, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - HJ Lee
- Seoul National University College of Medicine, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - E Kang
- Seoul National University College of Medicine, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea
| | - S-W Kim
- Seoul National University College of Medicine, Seoul, Republic of Korea; Seoul National University Bundang Hospital, Seongnam, Republic of Korea
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Carroll MW, Lee M, Cai Y, Hallahan CW, Shaw PA, Min JH, Goldfeder LC, Alekseyev V, Grinkrug S, Kang HS, Hwang S, Park HM, Kang E, Lee SY, Jin B, Park HE, Min S, Park SK, Jeon DS, Via LE, Barry CE. Frequency of adverse reactions to first- and second-line anti-tuberculosis chemotherapy in a Korean cohort. Int J Tuberc Lung Dis 2012; 16:961-6. [PMID: 22584241 DOI: 10.5588/ijtld.11.0574] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To determine the frequency of and risk factors for major adverse drug reactions (MADRs) associated with anti-tuberculosis treatment at a tuberculosis (TB) referral hospital in the Republic of Korea. METHODS Data from an ongoing natural history cohort study were analyzed for permanent regimen changes due to adverse drug reactions and confirmed by chart review. RESULTS Among 655 subjects, there were 132 MADRs in 112 (17%) subjects. The most common MADRs were gastrointestinal (n = 53), musculoskeletal (n = 22), psychiatric (n = 10), visual (n = 9) and peripheral neuropathic (n = 8). MADRs were more frequent in subjects being treated with second-line regimens (16%) compared to first-line regimens (2.5%). Drugs frequently associated with MADRs were amikacin (3/10, 30%), linezolid (8/29, 28%), para-aminosalicylic acid (47/192, 24%), pyrazinamide (31/528, 5.8%), macrolides (2/44, 4.5%) and cycloserine (12/272, 4.4%). Fluoroquinolones accounted for a single MADR (1/377, 0.003%), despite widespread usage. In multivariate analysis, infection with multi- or extensively drug-resistant disease and previous history of anti-tuberculosis treatment were risk factors for MADR, with adjusted hazard ratios of respectively 2.2 (P = 0.02) and 1.6 (P = 0.04). CONCLUSION MADRs are common during anti-tuberculosis chemotherapy in this population, occurring in more than one in six subjects. New and less toxic agents to treat drug-resistant TB are urgently needed.
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Affiliation(s)
- M W Carroll
- International Tuberculosis Research Center, Masan, Republic of Korea
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Kang E, Kim D, Paik N. Transcranial direct current stimulation of the left prefrontal cortex improves attention in patients with traumatic brain injury: A pilot study. J Rehabil Med 2012; 44:346-50. [DOI: 10.2340/16501977-0947] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Yom CK, Han W, Kim SW, Kim DW, Kang E, Noh DY. P3-01-13: Leptin Modulates the Response to Tamoxifen Treatment in ER-Positive Breast Cancer Cell Lines. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p3-01-13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Obesity is known to a risk factor for breast cancer in postmenopausal women. Leptin is a potent adipokine which mainly produced by adipose tissue and leptin signaling plays a significant role in tumor development and invasion of breast cancer. In recent study, leptin induced aromatase gene expression, elevating aromatase activity and increasing estrogen synthesis in MCF-7 cell. Leptin was also able to enhance estrogen receptor α (ERα)-dependent transcription by decreasing ERα ubiquitination and degradation. And this imply that lepin may play some role on hormone resistancy of ER-positive breast cancer. The aims of this study is to evaluate whether leptin modulates the effect on tamoxifen treatment in estrogen receptor (ER)-positive breast cancer cell.
At first, we examined leptin and Leptin receptor(Ob-R) expression by western blot assay in various breast cancer cells and cell proliferation by cell viability assay in combination with leptin and tamoxifen under estradiol (E2) treatment. And we analyzed the effect of leptin on the response of tamoxifen treatment in ER-positive breast cancer cells and which result from activation of ERK1/2 and STAT3 signaling pathway in leptin treatment.
We used the MCF-7 (ER+/Leptin +/Ob-R+) cell and T-47D (ER+/ Leptin +/Ob-R-)cell to compare the effect of leptin according to Ob-R status. Leptin had the proliferative effect on MCF-7 comparing to control and T-47D cells. But leptin had no additional effect on both cells in combination with tamoxifen or E2. Interestingly, Leptin had an inhibitory effect on tamoxifen especially in high E2 (20 nM) setting in both MCF-7 and T-47D cells. In cell signaling, when leptin was added to combination treatment of E2 and tamoxifen, the total- and phospho- of ERK1/2 was more activated than combination without leptin in MCF-7. In case of STAT3, activation of total- and phospho-STAT3 were relatively remarkable comparing to combination without leptin, when the three agents are combined to treatment in MCF-7. On the contrary, in T-47D cell, when leptin added to combination of E2 and tamoxifen, leptin relatively induced the activation of total ERK1/2 comparing to combination of E2 and tamoxifen without leptin. But this result was not shown in phospho-ERK1/2 signaling. In STAT3 signaling, same results was noted in T-47D.
We concluded that leptin interfere with the anti-estrogenic effects of tamoxifen under E2 condition both in MCF-7 and in T-47D ER-positive breast cancer cells through activation not only Ob-R but also crosstalk other signaling system. These results imply that inhibition of leptin expect to enhance the hormone response in ER-positive breast cancer, and therefore, to be the promising way to overcome hormonal resistance.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-01-13.
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Affiliation(s)
- CK Yom
- 1Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea; Seoul National University College of Medicine, Seoul, Korea
| | - W Han
- 1Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea; Seoul National University College of Medicine, Seoul, Korea
| | - S-W Kim
- 1Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea; Seoul National University College of Medicine, Seoul, Korea
| | - DW Kim
- 1Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea; Seoul National University College of Medicine, Seoul, Korea
| | - E Kang
- 1Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea; Seoul National University College of Medicine, Seoul, Korea
| | - D-Y Noh
- 1Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea; Seoul National University College of Medicine, Seoul, Korea
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M, Valencia Palomo L, Vallero S, van der Kolk N, Vande Vyvre P, van Leeuwen M, Vannucci L, Vargas A, Varma R, Vasileiou M, Vasiliev A, Vechernin V, Veldhoen M, Venaruzzo M, Vercellin E, Vergara S, Vernekohl DC, Vernet R, Verweij M, Vickovic L, Viesti G, Vikhlyantsev O, Vilakazi Z, Villalobos Baillie O, Vinogradov Y, Vinogradov A, Vinogradov L, Virgili T, Viyogi YP, Vodopyanov A, Voloshin K, Voloshin S, Volpe G, von Haller B, Vranic D, Øvrebekk G, Vrláková J, Vulpescu B, Vyushin A, Wagner B, Wagner V, Wan R, Wang Y, Wang Y, Wang M, Wang D, Watanabe K, Wessels JP, Westerhoff U, Wiechula J, Wikne J, Wilde M, Wilk A, Wilk G, Williams MCS, Windelband B, Xaplanteris Karampatsos L, Yang H, Yasnopolskiy S, Yi J, Yin Z, Yokoyama H, Yoo IK, Yoon J, Yuan X, Yushmanov I, Zabrodin E, Zach C, Zampolli C, Zaporozhets S, Zarochentsev A, Závada P, Zaviyalov N, Zbroszczyk H, Zelnicek P, Zenin A, Zgura I, Zhalov M, Zhang X, Zhou D, Zhou F, Zhou Y, Zhu X, Zichichi A, Zinovjev G, Zoccarato Y, Zynovyev M. Higher harmonic anisotropic flow measurements of charged particles in Pb-Pb collisions at sqrt(s(NN)) = 2.76 TeV. Phys Rev Lett 2011; 107:032301. [PMID: 21838350 DOI: 10.1103/physrevlett.107.032301] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Indexed: 05/31/2023]
Abstract
We report on the first measurement of the triangular v3, quadrangular v4, and pentagonal v5 charged particle flow in Pb-Pb collisions at sqrt(s(NN)) = 2.76 TeV measured with the ALICE detector at the CERN Large Hadron Collider. We show that the triangular flow can be described in terms of the initial spatial anisotropy and its fluctuations, which provides strong constraints on its origin. In the most central events, where the elliptic flow v2 and v3 have similar magnitude, a double peaked structure in the two-particle azimuthal correlations is observed, which is often interpreted as a Mach cone response to fast partons. We show that this structure can be naturally explained from the measured anisotropic flow Fourier coefficients.
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Affiliation(s)
- K Aamodt
- Department of Physics and Technology, University of Bergen, Bergen, Norway
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