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Radiation control by defects in dark-state resonant photonic lattices. OPTICS LETTERS 2023; 48:3295-3298. [PMID: 37319085 DOI: 10.1364/ol.493721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 05/23/2023] [Indexed: 06/17/2023]
Abstract
In this Letter, we present and explain novel radiation properties enabled by defects in resonant photonic lattices (PLs). Incorporating a defect breaks the lattice symmetry and generates radiation through the stimulation of leaky waveguide modes near the non-radiant bound (or dark) state spectral location. Analyzing a simple one-dimensional (1D) subwavelength membrane structure, we show that the defects produce local resonant modes that correspond to asymmetric guided-mode resonances (aGMRs) in spectra and near-field profiles. Without a defect, a symmetric lattice in the dark state is neutral, generating only background scattering. Incorporating a defect into the PL induces high reflection or transmission by robust local resonance radiation depending on the background radiation state at the bound state in the continuum (BIC) wavelengths. With the example of a lattice under normal incidence, we demonstrate defect-induced high reflection as well as high transmission. The methods and results reported here have significant potential to enable new modalities of radiation control in metamaterials and metasurfaces based on defects.
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Quantifying bound and leaky states of resonant optical lattices by Rytov-equivalent homogeneous waveguides. OPTICS LETTERS 2023; 48:311-314. [PMID: 36638445 DOI: 10.1364/ol.481311] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
The properties of periodic optical lattices are generally investigated with rigorous numerical methods. For physical insight and understanding of the complex processes underlying observed spectra, simple analytical models are needed. Accordingly, we show that by applying full Rytov effective-medium formalisms, the bound and leaky states of resonant photonic lattices can be quantified with high precision. Thus, all key properties are embodied in Rytov-equivalent homogeneous waveguides. The symmetric effective-medium theory (EMT) model quantifies rigorously computed guided-mode resonance (GMR) reflectance loci defining the leaky states. The asymmetric EMT formula similarly quantifies the bound state in the continuum (BIC) loci. Even with the period and wavelength on similar scales, the analytical EMT refractive index solutions agree exactly with rigorous solutions. We apply the Rytov formulas to explain the resonant leaky band structure including appearance of GMR and BIC states as well as band transitions and band closure points. The wavenumbers of the equivalent waveguides represent the BIC embedded eigenvalues as quantified here.
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Cytoskeleton disruption by the metabolic inhibitor 3-bromopyruvate: implications in cancer therapy. Med Oncol 2022; 39:121. [PMID: 35716210 DOI: 10.1007/s12032-022-01712-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 03/15/2022] [Indexed: 11/24/2022]
Abstract
The small molecule 3-bromopyruvate (3BP), is an anticancer molecule that acts by hindering glycolysis and mitochondrial function leading to energy depletion and consequently, to cell death. In this work we have focused on understanding how the glycolytic inhibition affects cancer cell structural features. We showed that 3BP leads to a drastic decrease in the levels of β-actin and α-tubulin followed by disorganization and shrinkage of the cytoskeleton in breast cancer cells. 3BP inhibits cell migration and colony formation independently of the activity of metalloproteinases. To disclose if these structural alterations occurred prior to 3BP toxic effect, non-toxic concentrations of 3BP were used and we could observe that 3BP was able to inhibit energy production and induce loss of β-actin and α-tubulin proteins. This was accompanied with alterations in cytoskeleton organization and an increase in E-cadherin levels which may indicate a decrease in cancer cells aggressiveness. In this study we demonstrate that 3BP glycolytic inhibition of breast cancer cells is accompanied by cytoskeleton disruption and consequently loss of migration ability, suggesting that 3BP can potentially be explored for metastatic breast cancer therapy.
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Design of a finline antenna for current drive in TST-2. FUSION ENGINEERING AND DESIGN 2022. [DOI: 10.1016/j.fusengdes.2022.113094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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M127 Internal quality control procedure for urine test strip analyzer: Multi-rule based on sigma metric. Clin Chim Acta 2022. [DOI: 10.1016/j.cca.2022.04.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Machine Learning Algorithms Identify Distinct Phenotypes of Right Heart Failure After Left Ventricular Assist Device Implant. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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Substrate-wave-induced antireflection in metasurfaces. OPTICS LETTERS 2022; 47:1061-1064. [PMID: 35230290 DOI: 10.1364/ol.448939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 01/18/2022] [Indexed: 06/14/2023]
Abstract
We address the antireflection (AR) properties of periodic surfaces, or metasurfaces, supporting substrate waves. The work is motivated by recent literature where AR bands formed by substrate-wave propagation are incorrectly attributed to Mie scattering. In contrast, as clearly shown here, substrate-wave generation with corresponding AR signatures is a diffractive effect due to a periodic lattice and is not due to particle scattering as in Mie resonance. Treating both 1D and 2D surfaces, we demonstrate a clear quantitative connection between major AR loci and corresponding total substrate transmittance loci via maps in period versus wavelength. As shown, this holds for fully dispersed, lossy surfaces as well. The results presented here serve to elucidate the physical properties of periodic metasurfaces placed on substrates admitting propagating diffraction orders and may inform the design and implementation of grating-based AR structures.
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Impact of COVID-19 on TB epidemiology in South Korea. Int J Tuberc Lung Dis 2021; 25:854-860. [PMID: 34615583 DOI: 10.5588/ijtld.21.0255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING: Five referral hospitals, South Korea.OBJECTIVE: To assess epidemiological changes in TB before and during the COVID-19 pandemic.DESIGN: This was a multicentre cohort study of 3,969 patients diagnosed with TB.RESULTS: We analysed 3,453 patients diagnosed with TB prior to the COVID-19 pandemic (January 2016-February 2020) and 516 during the pandemic (March-November 2020). During the pandemic, the number of patients visits declined by 15% from the previous 4-year average, and the number of patients diagnosed with TB decreased by 17%. Patients diagnosed during the pandemic were older than those diagnosed before the pandemic (mean age, 60.2 vs. 56.6 years, P < 0.001). The proportion of patients to have primary TB at a younger age (births after 1980) among those diagnosed with TB was significantly lower during the pandemic than before (17.8% in 2020 vs. 23.5% in 2016, 24.0% in 2017, 22.5% in 2018, 23.5% in 2019; P = 0.005).CONCLUSIONS: The COVID-19 pandemic resulted in a reduction in the number of visits to respiratory departments, leading to fewer patients being diagnosed with TB. However, our results suggest that universal personal preventive measures help to suppress TB transmission in regions with intermediate TB burden.
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First Detection of sub-PeV Diffuse Gamma Rays from the Galactic Disk: Evidence for Ubiquitous Galactic Cosmic Rays beyond PeV Energies. PHYSICAL REVIEW LETTERS 2021; 126:141101. [PMID: 33891464 DOI: 10.1103/physrevlett.126.141101] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/05/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
We report, for the first time, the long-awaited detection of diffuse gamma rays with energies between 100 TeV and 1 PeV in the Galactic disk. Particularly, all gamma rays above 398 TeV are observed apart from known TeV gamma-ray sources and compatible with expectations from the hadronic emission scenario in which gamma rays originate from the decay of π^{0}'s produced through the interaction of protons with the interstellar medium in the Galaxy. This is strong evidence that cosmic rays are accelerated beyond PeV energies in our Galaxy and spread over the Galactic disk.
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Micro-electromechanical-system-tuned resonant filters spanning the 8-12 µm band. OPTICS LETTERS 2021; 46:1329-1332. [PMID: 33720179 DOI: 10.1364/ol.418545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
The spectral band covering ∼8-12µm is atmospherically transparent and therefore important for terrestrial imaging, day/night situational awareness systems, and spectroscopic applications. There is a dearth of tunable filters spanning the band. Here, we propose and demonstrate a new, to the best of our knowledge, tunable-filter method engaging the fundamental physics of the guided-mode resonance (GMR) effect realized with a non-periodic lattice. The polarization-dependent filter is fashioned with a one-dimensional Ge grating on a ZnSe substrate and interrogated with a ∼1.5mm Gaussian beam to show clear transmittance nulls. To expand the tuning range, the device parameters are optimized for sequential operation in TM and TE polarization states. The theoretical model exhibits a tunable range exceeding 4 µm, thus covering the band fully. In the experiment, a prototype device exhibits a spectral range of 8.6-10.0 µm in TM and 9.9-11.7 µm in TE polarization or >3µm total. With additional efforts in fabrication, we expect to achieve the full range.
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Resonant filters with concurrently tuned central wavelengths and sidebands. OPTICS LETTERS 2020; 45:6046-6049. [PMID: 33137065 DOI: 10.1364/ol.410017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
Tunable infrared filters are important for various optical and optoelectronic systems. Ideally, such filters should span wide spectral ranges while retaining constant performance. Here, as a fundamental approach, we theoretically treat tunable resonant filters and realize favorable spectral profiles. Implementing a chirped zero-contrast grating on wedged sublayers, we optimize the resonant tunable filter for operation in the ∼5-14µm band. To clarify the root causes of the physical processes enabling the observed performance, attendant resonance modal processes and background reflection behavior are analyzed in detail by equivalent models as well as by rigorous electromagnetic models. The key innovative contribution of this research is that it enables efficient filters with simultaneously tuned operational wavelengths and sidebands.
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PNS62 An Expert Survey on Talent Cultivation in Health Technology Assessment. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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PRO6 Epidemiology and Treatment Patterns of Hemophilia a in Taiwan from 2013 to 2017. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Unpolarized resonant notch filters for the 8-12 µm spectral region. OPTICS LETTERS 2020; 45:4452-4455. [PMID: 32796981 DOI: 10.1364/ol.398744] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/06/2020] [Indexed: 06/11/2023]
Abstract
The long-wave infrared (LWIR) spectral region spanning ∼8-12µm is useful for many scientific and industrial applications. As traditional multilayer film components are not straightforwardly realized at these bands, we provide design, fabrication, and testing of polarization independent bandstop filters based on the guided-mode resonance (GMR) effect. Focusing on the zero-contrast grating architecture, we successfully fabricate prototype filters in the Ge-on-ZnSe materials system. Applying mask-based photolithography and dry etching, photoresist patterns form the desired Ge grating structures. The resulting devices exhibit clean transmittance nulls and acceptably high sidebands. Moreover, we verify polarization independent notch filtering by assembling two identical GMR filters with gratings oriented orthogonally. This approach to realize effective GMR elements will be useful for various fields including photonic and optoelectronic devices operating in the LWIR region.
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Modification of the RANKL-RANK-binding site for the immunotherapeutic treatment of osteoporosis. Osteoporos Int 2020; 31:983-993. [PMID: 31863125 DOI: 10.1007/s00198-019-05200-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 10/16/2019] [Indexed: 12/20/2022]
Abstract
UNLABELLED Here, we proposed the use of mutated RANKL as an immunogen for active immunization and to induce anti-cytokine antibodies for osteoporosis treatment. INTRODUCTION Osteoclasts are responsible for bone resorption in bone-related disorders. Anti-cytokine therapeutic antibodies such as denosumab are effective for the treatment of osteoporosis. However, problems with antibody manufacturing and the immunogenicity caused by multiple antibody doses have led to the use of auto-cytokines as immunogens to induce anti-cytokine antibodies. METHODS RANKL was point-mutated based on the crystal structure of the complex of RANKL and its receptor RANK. RESULTS As a proof of concept, immunization with RANKL produced high levels of specific antibodies and blocked osteoclast development in vitro and inhibited osteoporosis in RANKL-treated or ovariectomized mouse models. CONCLUSIONS The results demonstrate the successful use of mutated RANKL as an immunogen for the induction of anti-RANKL immune response. This strategy is useful in general anti-cytokine immunotherapy to avoid toxic side effects of osteoporosis treatment.
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P5479Educational attainment is an independent predictor of adverse outcomes in patients with coronary artery disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Educational attainment is an indicator of socioeconomic status and is inversely associated with cardiovascular risk factors and risk for incident coronary artery disease (CAD). Whether the level of educational attainment (EL) in patients with CAD influences outcomes remains understudied.
Purpose
To ascertain the relationship between EL and adverse outcomes in patients with CAD. We hypothesize that EL will be inversely associated with adverse outcomes in this high-risk patient population.
Methods
Subjects undergoing cardiac catheterization for known or suspected CAD were recruited in a cardiovascular biobank and had their highest level of educational attainment assessed using predefined options of elementary/middle school, high school, college, or graduate education. The primary outcome of interest was all-cause mortality and secondary outcomes included a composite of cardiovascular deaths and nonfatal myocardial infarction (MI) events, and nonfatal MI events during follow-up. Cox proportional hazards regression models were used to analyze the association between EL and adverse outcomes after adjustment for demographic characteristics, cardiovascular risk factors, cardiovascular medication use, and estimated zip code-based annual family income.
Results
Among the 6,318 subjects (mean age 64 years, 63% male, 23% black) enrolled, 998 (16%) had received graduate or a higher qualification, 2,689 (43%) had received a college education, 2,403 (38%) had received a high school education, and 228 (3%) had received elementary/middle school education. During a median follow-up of 3 years,there were 1,110 deaths from all causes, 851 cardiovascular deaths/nonfatal MI, and 286 nonfatal MI events. After adjusting for covariates and compared to patients with graduate education or higher, those with lower EL (elementary/middle school, high school, or college education) had a higher risk of all-cause mortality [hazard ratio 1.66, (95% CI 1.08, 2.54), 1.58 (95% CI 1.22, 2.04), and 1.45 (95% CI 1.13, 1.57), respectively]. Similar findings were observed for secondary outcomes. EL dichotomized at graduate education was associated with all-cause mortality (hazard ratio 1.48, 95% CI 1.16, 1.88), but this relationship was significantly modified by sex (p-interaction 0.023) and the association was attenuated among male patients (hazard ratio 1.23, 95% CI 0.94, 1.61) but not female patients (hazard ratio 2.70, 95% CI 1.53, 4.77).
Conclusions
Lower educational attainment is an independent predictor of adverse outcomes in patients with CAD. The causal link between low education level and increased CV risk needs further investigation.
Acknowledgement/Funding
Dr. Quyyumi is supported by NIH grants 5P01HL101398-02, 1P20HL113451-01, 1R56HL126558-01, 1RF1AG051633-01, R01 NS064162-01, R01 HL89650-01, HL095479-0
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Copy number variation in longitudinal liver metastases biopsies in colorectal cancer identifies biomarker candidates of resistance to standard chemotherapy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz154.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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TREATMENT OUTCOMES OF INVOLVED-FIELD RADIOTHERAPY IN ELDERLY PATIENTS WITH HIGH-GRADE OR RECURRENT NON-HODGKIN LYMPHOMA. Hematol Oncol 2019. [DOI: 10.1002/hon.93_2631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Validating Patient Prioritization in the 2018 Revised UNOS Heart Allocation System: A Single Center Experience. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Abstract P2-05-03: Clinical implication of APOBEC3A and 3B in Korean patients with breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p2-05-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Apolipoprotein B mRNA-editing enzyme, catalytic polypeptide-like (APOBEC) family is known to function in innate immune system that protects against retrovirus by deaminating cytosine to uracil in single-stranded DNA. APOBEC family has emerged as an endogenous mutator to contribute to the mutation burden in many cancers. We aimed to evaluate the expression of APOBEC3A (A3A), 3B (A3B) mRNA and APOBEC3A-3B deletion polymorphism in Korean breast cancer patients and investigate the correlation between their expression and clinicopathological characteristics.
Methods: One hundred thirty-eight patients who underwent surgery for breast cancer in Uijeongbu St. Mary's Hospital between January 2013 and December 2016 were evaluated. RNA and DNA were extracted from 138 breast cancer tissues and 10 adjacent normal breast tissues. The levels of A3A and A3B mRNA transcripts were determined using real-time quantitative PCR. Insertion and deletion PCR assays were performed to detect the APOBEC3A-3B deletion allele. Mutation hotspots in exon 2-11 of TP53 and exon 9/20 of PIK3CA were evaluated using direct sequencing method.
Results: The expression of A3B was increased in breast cancer tissues than in normal breast tissues. The median A3B mRNA expression levels in both triple-negative breast cancer and human epidermal growth factor 2-positive breast cancer were significantly higher than in hormone receptor-positive breast cancer. Old age and high ki-67 expression were associated with increased expression of A3A and A3B. Advanced stage, presence of lymph node involvement, and high histological grade were associated with increased expression of A3A. The APOBEC3B deletion allele was found in 78 (56%) tumor samples. There was no significant association between A3A, A3B mRNA levels and the presence of APOBEC3B deletion allele. There was no difference in clinicopathological characteristics according to the presence of APOBEC3B deletion allele except histological grade. The frequency of high histological grade was significantly higher in tumors with APOBEC3B deletion allele than tumors without APOBEC3B deletion allele. TP53 mutations were identified in 12 (8.7%) cases and PIK3CA mutations were identified in 31 (22.5%) cases. There were no significant differences in the levels of A3A and A3B mRNA expression by TP53 mutation status. The presence of a PIK3CA mutation was significantly associated with lower A3A expression.
Conclusions: The levels of A3B mRNA expression showed a difference according to breast cancer subtype, and triple-negative breast cancer showed the highest levels of A3B mRNA expression. The high levels of A3A and A3B mRNA expression were associated with an aggressive phenotype including high proliferation index. The APOBEC3A-3B deletion polymorphism was found in about half of the patients, but there was no difference in clinicopathological factors according to the presence of APOBEC3B deletion allele except histological grade.
Citation Format: Won HS, Sun DS, Ko YH, You SH, Kim YS, Kim JS. Clinical implication of APOBEC3A and 3B in Korean patients with 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 P2-05-03.
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PSXIII-22 Changes of reproductive hormones and pregnancy rate with different estrus synchronization methods in Korean black goats. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Characterizations of DNA copy number variations and spatio-temporal intra tumor heterogeneity in liver metastasis from colorectal cancer patients. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy150.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Beyond first-line non-anthracycline-based chemotherapy for extranodal NK/T-cell lymphoma: clinical outcome and current perspectives on salvage therapy for patients after first relapse and progression of disease. Ann Oncol 2018; 28:2199-2205. [PMID: 28911074 DOI: 10.1093/annonc/mdx316] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Background Current standard treatment, including non-anthracycline-based chemotherapy and optimal combining of radiotherapy, has dramatically improved outcomes of patients with extranodal natural killer/T-cell lymphoma (ENKTL) during the last decade. This study was conducted to investigate the clinical outcome of ENKTL patients with relapsed or progressive disease after initial current standard therapy. Patients and methods We retrospectively reviewed patients diagnosed with ENKTL at six centers in four countries (China, France, Singapore, and South Korea) from 1997 to 2015 and analyzed 179 patients who had relapsed or progressed after initial current standard therapy. Results After a median follow-up of 58.6 months (range 27.9-89.2), the median second progression-free survival (PFS) was 4.1 months [95% confidence interval (CI) 3.04-5.16] and overall survival (OS) was 6.4 months (95% CI 4.36-8.51). Multivariate Cox-regression analysis revealed that elevated lactate dehydrogenase, multiple extranodal sites (≥2), and presence of B symptoms were associated with inferior OS (P < 0.05). OS and PFS were significantly different according to both prognostic index of natural killer lymphoma (PINK) and PINK-E (Epstein-Barr virus) models. Salvage chemotherapy with l-asparaginase (l-Asp)-based regimens showed a significantly better clinical benefit to response rate and PFS, although it did not lead to OS improvement. First use of l-Asp in the salvage setting and l-Asp rechallenge at least 6 months after initial treatment were the best candidates for salvage l-Asp containing chemotherapy. Conclusions Most patients with relapsed or refractory ENKTL had poor prognosis with short survival. Further studies are warranted to determine the optimal treatment of patients with relapsed or refractory ENKTL.
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Cost-effectiveness of multidisciplinary collaborative care versus usual care in the management of high-risk patients with diabetes in Singapore: Short-term results from a randomized controlled trial. J Clin Pharm Ther 2018; 43:775-783. [DOI: 10.1111/jcpt.12700] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 03/28/2018] [Indexed: 01/21/2023]
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SIPAT May Predict Clinical Outcomes in Patients With Left Ventricular Assist Device (LVAD). J Heart Lung Transplant 2018. [DOI: 10.1016/j.healun.2018.01.1228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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172 Skin type analysis based on the new questionnaire in Korean women. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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P1555Using a decision tree analysis to risk stratify patients with coronary artery disease. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Impact of pharmacist-involved collaborative care on the clinical, humanistic and cost outcomes of high-risk patients with type 2 diabetes (IMPACT): a randomized controlled trial. J Clin Pharm Ther 2017; 42:475-482. [PMID: 28449205 DOI: 10.1111/jcpt.12536] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/29/2017] [Indexed: 12/14/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE With the increasing prevalence of diabetes, the physician-centred model is challenged to deliver holistic care in Asia. Diabetes may be managed effectively within a multidisciplinary collaborative care model; however, evidence on its effectiveness in Asian patients is lacking. Therefore, the primary objective was to evaluate the clinical outcomes of multidisciplinary collaborative care vs physician-centred care in diabetes. The secondary objectives were to evaluate humanistic and economic outcomes among the two types of care. METHODS This 6-month prospective, open-label, parallel-arm, randomized, controlled study was conducted at four outpatient healthcare institutions. High-risk patients aged ≥21 years with uncontrolled type 2 diabetes, polypharmacy and comorbidities were included. Patients with type 1 diabetes or those who were unable to communicate independently were excluded. The control arm received usual care with referrals to nurses and dietitians as needed. The intervention arm (multidisciplinary collaborative care) was followed up with pharmacists regularly, in addition to receiving the usual care. The primary outcomes included HbA1c, systolic blood pressure, low-density lipoprotein and triglycerides. The secondary outcomes included scores from the Problem Areas in Diabetes (PAID) and the Diabetes Treatment Satisfaction Questionnaires (DTSQ), and diabetes-related health service utilization rates and costs. RESULTS AND DISCUSSION Of 411 eligible patients, 214 and 197 patients were randomized into the intervention and control arms, respectively. At 6 months, 141 patients in the intervention arm (65.9%) and 189 patients in the control arm (95.9%) completed the study. Mean HbA1c reduced from 8.6%±1.5% at baseline to 8.1%±1.3% at 6 months in the intervention arm (P=.04), with up to mean HbA1c improvement of 0.8% in patients with greater levels of uncontrolled glycemia. Whereas the mean HbA1c in the control arm remained unchanged (8.5%±1.4%) throughout the 6-month period. Improvements in PAID and DTSQ scores, reduction in physician workload and an average cost savings of US$91.01 per patient were observed in the intervention arm over 6 months. WHAT IS NEW AND CONCLUSIONS The positive clinical, humanistic and economic outcomes highlighted the value of multidisciplinary collaborative care for Asian diabetic patients, thereby supporting the effectiveness of this approach in managing chronic diseases.
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MICRO RNAS AS PREDICTIVE MARKERS OF ORAL LEUKOPLAKIA THAT PROGRESS TO CANCER. Oral Surg Oral Med Oral Pathol Oral Radiol 2016. [DOI: 10.1016/j.oooo.2016.06.087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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285 New Chest Compression Method in Infant Resuscitations. Ann Emerg Med 2016. [DOI: 10.1016/j.annemergmed.2016.08.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Accuracy of Xpert(®) MTB/RIF assay compared with AdvanSure™ TB/NTM real-time PCR using bronchoscopy specimens. Int J Tuberc Lung Dis 2016; 20:115-20. [PMID: 26688537 DOI: 10.5588/ijtld.15.0227] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The performance of Xpert(®) MTB/RIF assay, an automated nucleic acid amplification test (NAAT) that was developed for the detection of tuberculosis (TB), has been evaluated in various clinical settings. However, few studies have compared Xpert with other NAATs, especially its performance using lower respiratory tract specimens (LRTS). OBJECTIVE To compare the practical diagnostic performance of the Xpert assay with that of the AdvanSure™ TB/NTM RT-PCR kit in the detection of pulmonary TB (PTB), using LRTS obtained through bronchoscopy. RESULTS Of 249 patients included, 105 had culture-confirmed PTB. Using culture as reference, the overall sensitivity of Xpert and AdvanSure was respectively 92.4% and 83.8%. When acid-fast bacilli smear results were taken into consideration, the sensitivity of Xpert for smear-positive and smear-negative LRTS was respectively 100% and 88.9%, while that of the AdvanSure was 100% and 76.4%. Xpert showed better results than AdvanSure in terms of sensitivity in smear-negative LRTS (P = 0.012), but no difference in smear-positive LRTS. CONCLUSIONS Xpert may be advantageous in the detection of PTB using LRTS, particularly in low microbiological burden settings.
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Abstract PR234. Anesth Analg 2016. [DOI: 10.1213/01.ane.0000492632.42840.9a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Humanizing the NOD/SCID/IL-2Rɤnull (NSG) mice using busulfan and retro-orbital injection of umbilical cord blood-derived CD34+ cells. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61646-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Author reply to Comment on: Frequent CTLA4-CD28 gene fusion in diverse types of T-cell lymphoma, by Yoo et al. Haematologica 2016; 101:e271. [PMID: 27252517 DOI: 10.3324/haematol.2016.148015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Observation of Energy and Baseline Dependent Reactor Antineutrino Disappearance in the RENO Experiment. PHYSICAL REVIEW LETTERS 2016; 116:211801. [PMID: 27284648 DOI: 10.1103/physrevlett.116.211801] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Indexed: 06/06/2023]
Abstract
The RENO experiment has analyzed about 500 live days of data to observe an energy dependent disappearance of reactor ν[over ¯]_{e} by comparing their prompt signal spectra measured in two identical near and far detectors. In the period between August of 2011 and January of 2013, the far (near) detector observed 31 541 (290 775) electron antineutrino candidate events with a background fraction of 4.9% (2.8%). The measured prompt spectra show an excess of reactor ν[over ¯]_{e} around 5 MeV relative to the prediction from a most commonly used model. A clear energy and baseline dependent disappearance of reactor ν[over ¯]_{e} is observed in the deficit of the observed number of ν[over ¯]_{e}. Based on the measured far-to-near ratio of prompt spectra, we obtain sin^{2}2θ_{13}=0.082±0.009(stat)±0.006(syst) and |Δm_{ee}^{2}|=[2.62_{-0.23}^{+0.21}(stat)_{-0.13}^{+0.12}(syst)]×10^{-3} eV^{2}.
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Economic evaluations of pharmacist-managed services in people with diabetes mellitus: a systematic review. Diabet Med 2016; 33:421-7. [PMID: 26433008 DOI: 10.1111/dme.12976] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/29/2015] [Indexed: 11/28/2022]
Abstract
AIM To review and evaluate the most recent literature on the economic outcomes of pharmacist-managed services in people with diabetes. BACKGROUND The global prevalence of diabetes is increasing. Although pharmacist-managed services have been shown to improve people's health outcomes, the economic impact of these programmes remains unclear. METHODS A systematic review was conducted of six databases. Study inclusion criteria were: (1) original research; (2) evaluation of pharmacist-managed services in people with diabetes; (3) an economic evaluation; (4) English-language publication; and (5) full-text, published between January 2006 and December 2014. The quality of the full economic evaluations reviewed was evaluated using the Consolidated Health Economic Evaluation Reporting Standards checklist. RESULTS A total of 2204 articles were screened and 25 studies were selected. These studies were conducted in a community pharmacy (n = 10), a clinic- /hospital-based outpatient facility (n = 8), or others. Pharmacist-managed services included targeted education (n = 24), general pharmacotherapeutic monitoring (n = 21), health screening or laboratory testing services (n = 9), immunization services (n = 2) and pharmacokinetic monitoring (n = 1). Compared with usual care, pharmacist-managed services resulted in cost savings that varied from $7 to $65,000 ($8 to $85,000 in 2014 US dollars) per person per year, and generated higher quality-adjusted life years with lower costs. Benefit-to-cost ratios ranged from 1:1 to 8.5:1. Among the 25 studies reviewed, 11 were full economic evaluations of moderate quality. CONCLUSIONS Pharmacist-managed services had a positive return in terms of economic viability. With the expanding role of pharmacists in the healthcare sector, alongside increasing health expenditure, future economic studies of high quality are needed to investigate the cost-effectiveness of these services.
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Predictors of Out-of-Therapeutic-Range INR during Support with Continuous-Flow Left Ventricular Assist Device. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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JAK-STAT and G-protein-coupled receptor signaling pathways are frequently altered in epitheliotropic intestinal T-cell lymphoma. Leukemia 2016; 30:1311-9. [PMID: 26854024 PMCID: PMC4895162 DOI: 10.1038/leu.2016.13] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 01/07/2016] [Accepted: 01/18/2016] [Indexed: 12/11/2022]
Abstract
Epitheliotropic intestinal T-cell lymphoma (EITL, also known as type II enteropathy-associated T-cell lymphoma) is an aggressive intestinal disease with poor prognosis and its molecular alterations have not been comprehensively characterized. We aimed to identify actionable easy-to-screen alterations that would allow better diagnostics and/or treatment of this deadly disease. By performing whole-exome sequencing of four EITL tumor-normal pairs, followed by amplicon deep sequencing of 42 tumor samples, frequent alterations of the JAK-STAT and G-protein-coupled receptor (GPCR) signaling pathways were discovered in a large portion of samples. Specifically, STAT5B was mutated in a remarkable 63% of cases, JAK3 in 35% and GNAI2 in 24%, with the majority occurring at known activating hotspots in key functional domains. Moreover, STAT5B locus carried copy-neutral loss of heterozygosity resulting in the duplication of the mutant copy, suggesting the importance of mutant STAT5B dosage for the development of EITL. Dysregulation of the JAK-STAT and GPCR pathways was also supported by gene expression profiling and further verified in patient tumor samples. In vitro overexpression of GNAI2 mutants led to the upregulation of pERK1/2, a member of MEK-ERK pathway. Notably, inhibitors of both JAK-STAT and MEK-ERK pathways effectively reduced viability of patient-derived primary EITL cells, indicating potential therapeutic strategies for this neoplasm with no effective treatment currently available.
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Changes in lung function according to disease extent before and after pulmonary tuberculosis. Int J Tuberc Lung Dis 2016; 19:589-95. [PMID: 25868029 DOI: 10.5588/ijtld.14.0454] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To evaluate changes in lung function in individuals before and after treatment for pulmonary tuberculosis (PTB) in relation to extent of disease. DESIGN Using a retrospective cohort design, changes in and predictors of lung function were evaluated. RESULTS A total of 41 patients were included in the final analysis. The median decline in annualised forced expiratory volume in 1 sec (FEV1) was 180.0 ml/year (95%CI 118.9-356.1) in advanced PTB and 94.7 ml/year (95%CI 33.4-147.3) in localised PTB (ΔFEV1% predicted/year 9.4%, 95%CI 4.4-14.0 vs. 3.8%, 95%CI 1.8-6.2). The median decline in annualised forced vital capacity (FVC) was 309.6 ml/year (95%CI 137.0-359.0) in advanced PTB and 101.1 ml/year (95%CI 30.3-219.6) in localised PTB (ΔFVC % predicted/year 7.3%, 95%CI 5.3-12.3 vs. 2.9%, 95%CI 0.9-6.5). CONCLUSIONS As the sample size of our study was small, the conclusions could be biased. Nevertheless, our findings show that PTB causes a significant decline in lung function even in localised PTB, whereas advanced PTB was associated with excessive or even higher decline. This study suggests that early diagnosis and treatment of PTB is needed to preserve lung function.
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Epstein-Barr virus reactivation in extranodal natural killer/T-cell lymphoma patients: a previously unrecognized serious adverse event in a pilot study with romidepsin. Ann Oncol 2015; 27:508-13. [PMID: 26658891 DOI: 10.1093/annonc/mdv596] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 11/21/2015] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND Romidepsin, a histone deacetylase (HDAC) inhibitor, has been approved for the treatment of relapsed and refractory peripheral T-cell lymphoma. However, the efficacy and safety of romidepsin has never been studied in patients with relapsed or refractory extranodal natural killer (NK)/T-cell lymphoma (ENKTL). PATIENTS AND METHODS We conducted an open-label, prospective pilot study to evaluate the efficacy and feasibility of romidepsin in the treatment of patients with ENKTL. The treatment was intravenous infusion of romidepsin (14 mg/m(2)) for 4 h on days 1, 8, and 15 of a 28-day cycle, and was repeated until disease progression or the occurrence of unacceptable toxicity. RESULTS A total of five patients enrolled on to this pilot study. However, three patients developed fever and elevated liver enzyme and bilirubin levels immediately after their first administration of romidepsin. We suspected that these events were associated with Epstein-Barr virus (EBV) reactivation because of the rapidly elevated EBV DNA titers in blood from these patients. An in vitro study with the ENKTL cell line SNK-6 cells also showed that HDAC inhibitors including romidepsin increased the copy number of EBV DNA in a dose-dependent manner. These findings suggested that romidepsin-induced histone acetylation reversed the repressed state of the genes required for EBV reactivation and that romidepsin treatment may have caused EBV reactivation in EBV-infected tumor cells in ENKTL patients. Therefore, we discontinued the enrollment of patients into this pilot study. CONCLUSIONS Our study suggests that the use of romidepsin may cause severe EBV reactivation in patients with ENKTL.
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A comparison of lateral abdominal muscles thickness during bridging exercises with stable versus unstable support in healthy individuals. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.1668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
BACKGROUND Epstein-Barr virus (EBV)-positive diffuse large B-cell lymphoma (DLBCL) of the elderly is defined only in adults older than 50 years. However, EBV-positive DLBCL can affect younger patients. We investigated the prevalence, clinical characteristics and survival outcomes of EBV-positive DLBCL in young adults. PATIENTS AND METHODS We analyzed patients with de novo DLBCL who were registered in the Samsung Medical Center (SMC) retrospective lymphoma cohort and prospective SMC Lymphoma Cohort Study I (ClinicalTrials.gov: NCT00822731). RESULTS A total of 571 cases were included in the analysis. The prevalence of EBV positivity was 6.7% (13/195) and 9.3% (35/376) in the young group (≤50 years) and in the elderly group (>50 years), respectively. EBV status was closely associated with unique unfavorable clinical characteristics [older age, more advanced stage, two or more sites of extranodal involvement, higher International Prognostic Index (IPI), and age-adjusted IPI risk] only in the elderly group. Poor prognostic impact of EBV positivity on overall survival was observed only in the elderly group [hazard ratio (HR) 2.86; 95% confidence interval (CI) 1.83-4.47; P < 0.001], but not in the young group (HR 1.17; 95% CI 0.35-3.89; P = 0.801). CONCLUSION A substantial proportion of EBV-positive DLBCL of the elderly can occur in young adults. EBV positivity of DLBCL in young adults was not associated with unfavorable clinical characteristics or worse outcomes. We suggest that EBV-positive DLBCL should not be confined only in the elderly and 'EBV-positive DLBCL in young adults' needs to be considered as a clinically distinct disease entity. ClinicalTrials.gov: NCT02060435.
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Isolation and characterization of human mesenchymal stem cells from gingival connective tissue. J Periodontal Res 2014; 50:461-7. [DOI: 10.1111/jre.12228] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2014] [Indexed: 12/16/2022]
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Family Caregivers’ Awareness of Illness and Attitude Toward Disclosure During Chemotherapy for Advanced Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu350.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Standard Clinical Practice of Folfirinox (Ffx) in Advanced/Metastatic Pancreatic Cancer (Pc) Patients: a Canadian Retrospective Registry. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.87] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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The Significance of Complete Response (Cr) in Patients Receiving Salvage Therapy for Advanced Urothelial Carcinoma (Uc). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu337.58] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Occurrence and Characteristics of Keap1-Mutations in Patients with Non-Small Cell Lung Cancer (Nsclc). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu349.93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gain2: Adjuvant Phase III Trial Comparing an Intensified Dose-Dense Adjuvant Therapy with Enpc Compared with a Dose-Dense, Dose-Adapted Therapy with Dtec Dtdocetaxel in Patients with Primary Breast Cancer and a High Risk of Recurrence. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu327.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ret Translocation in Adenocarcinoma of the Lung. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu349.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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