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Bethany L Mundy-Bosse, Steven D Scoville, Li Chen, Kathleen McConnell, Hsiaoyin C Mao, Elshafa H Ahmed, Nicholas Zorko, Sophia Harvey, Jordan Cole, Xiaoli Zhang, Stefan Costinean, Carlo M Croce, Karilyn Larkin, John C Byrd, Sumithira Vasu, William Blum, Jianhua Yu, Aharon G Freud, Michael A Caligiuri
Natural killer (NK) cells can have potent antileukemic activity following haplo-mismatched, T cell-depleted stem cell transplantations for the treatment of acute myeloid leukemia (AML), but they are not successful in eradicating de novo AML. Here, we have used a mouse model of de novo AML to elucidate the mechanisms by which AML evades NK cell surveillance. NK cells in leukemic mice displayed a marked reduction in the cytolytic granules perforin and granzyme B. Further, as AML progressed, we noted the selective loss of an immature subset of NK cells in leukemic mice and in AML patients...
October 24, 2016: Journal of Clinical Investigation
Soh Youn Suh, Robert A Clark, Alan Le, Joseph L Demer
Purpose: To investigate changes in volumes of extraocular muscle (EOM) compartments in unilateral superior oblique (SO) palsy using magnetic resonance imaging (MRI). Methods: High-resolution, surface-coil MRI was obtained in 19 patients with unilateral SO palsy and 19 age-matched orthotropic control subjects. Rectus EOMs and the SO were divided into two anatomic compartments for volume analysis in patients with unilateral SO palsy, allowing comparison of total compartmental volumes versus controls...
October 1, 2016: Investigative Ophthalmology & Visual Science
Beomsu Shin, Kang Kim, Byeong-Ho Jeong, Jung Seop Eom, Won Jun Song, Hyung Koo Kang, Hojoong Kim
BACKGROUND AND OBJECTIVE: Post-intubation tracheal stenosis (PITS) and post-tracheostomy tracheal stenosis (PTTS) are serious complications in mechanically ventilated patients. Although the aetiologies and mechanisms of PITS and PTTS are quite different, little is known about the clinical impact of differentiating one from the other. METHODS: We retrospectively conducted a chart review of 117 patients with PITS and 88 patients with PTTS who were treated with interventional bronchoscopy at Samsung Medical Center between January 2004 and December 2013...
October 21, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
Shao-Rui Liu, Xue-Fei Song, Zheng-Kang Li, Qin Shen, Xian-Qun Fan
OBJECTIVE: With orbital floor fracture incidence rates increasing year by year, many patients require surgical treatment to improve diplopia, limitation of extraocular muscle movement (EOM), enophthalmos, and midface appearance. With the use of high-density polyethylene, titanium screws, titanium plate, and titanium mesh to repair an orbital floor fracture, enophthalmos and midfacial deformity correction procedures have made great progress. However, attenuating diplopia and the limitation of EOM are still difficult problems to prevent...
October 14, 2016: Journal of Craniofacial Surgery
Hyo Myung Kim, Youngsub Eom, Jong Suk Song
Meibomian gland dysfunction (MGD) is a leading cause of dry eye disease (DED). Meibomian gland dysfunction is divided into two major categories based on meibomian gland secretion: low delivery and high delivery. The low-delivery states are further classified as either hyposecretory or obstructive subtype, and the high-delivery state is termed "hypersecretory MGD." Two parameters are commonly used to evaluate meibomian gland function: lipid layer thickness and meibum quality and expressibility. To evaluate the morphology of meibomian glands, meibography is used to detect meibomian gland dropout...
October 13, 2016: Eye & Contact Lens
Bang Wool Eom, Young-Woo Kim, Byung-Ho Nam, Keun Won Ryu, Hyun-Yong Jeong, Young-Kyu Park, Young-Joon Lee, Han-Kwang Yang, Wansik Yu, Jeong-Hwan Yook, Geun Am Song, Sei-Jin Youn, Heung Up Kim, Sung-Hoon Noh, Sung Bae Park, Doo-Hyun Yang, Sung Kim
PURPOSE: This study aimed to establish a large-scale database of patients with gastric cancer to facilitate the development of a national-cancer management system and a comprehensive cancer control policy. MATERIALS AND METHODS: An observational prospective cohort study on gastric cancer was initiated in 2010. A total of 14 cancer centers throughout the country and 152 researchers were involved in this study. Patient enrollment began in January 2011, and data regarding clinicopathological characteristics, life style-related factors, quality of life, as well as diet diaries were collected...
September 2016: Journal of Gastric Cancer
Caroline Stienne, Michaël F Michieletto, Mehdi Benamar, Nadège Carrié, Isabelle Bernard, Xuan-Hung Nguyen, Yannick Lippi, Fanny Duguet, Roland S Liblau, Stephen M Hedrick, Abdelhadi Saoudi, Anne S Dejean
The transcription factor Foxo3 plays a crucial role in myeloid cell function but its role in lymphoid cells remains poorly defined. Here, we have shown that Foxo3 expression was increased after T cell receptor engagement and played a specific role in the polarization of CD4(+) T cells toward pathogenic T helper 1 (Th1) cells producing interferon-γ (IFN-γ) and granulocyte monocyte colony stimulating factor (GM-CSF). Consequently, Foxo3-deficient mice exhibited reduced susceptibility to experimental autoimmune encephalomyelitis...
October 1, 2016: Immunity
Sung-Soo Park, Jae-Ho Yoon, Hee-Je Kim, Young-Woo Jeon, Sung-Eun Lee, Byung-Sik Cho, Ki-Seong Eom, Yoo-Jin Kim, Seok Lee, Chang-Ki Min, Seok-Goo Cho, Dong-Wook Kim, Jong-Wook Lee, Woo-Sung Min
BACKGROUND: Acute myeloid leukemia (AML) with t(8;21)(q22;q22) is classified into a favorable-risk group. Extramedullary (EM) involvement has frequently been reported in this subgroup as resulting in a poor prognosis. However, characteristics or standard treatments of t(8;21) AML with EM involvement (EM-positive t(8;21)) have not yet been elucidated. PATIENTS AND METHODS: We retrospectively analyzed 154 adult AML patients with t(8;21). Among them, 17 were EM positive and 137 were EM negative at the time of diagnosis...
September 17, 2016: Clinical Lymphoma, Myeloma & Leukemia
Hyeon Woo Lim, Tae Hyun Kim, Il Ju Choi, Chan Gyoo Kim, Jong Yeul Lee, Soo Jeong Cho, Hyeon Seok Eom, Sung Ho Moon, Dae Yong Kim
PURPOSE: To assess the clinical outcomes of radiotherapy (RT) using two-dimensional (2D) and three-dimensional conformal RT (3D-CRT) for patients with gastric mucosa-associated lymphoid tissue (MALT) lymphoma to evaluate the effectiveness of involved field RT with moderate-dose and to evaluate the benefit of 3D-CRT comparing with 2D-RT. MATERIALS AND METHODS: Between July 2003 and March 2015, 33 patients with stage IE and IIE gastric MALT lymphoma received RT were analyzed...
September 2016: Radiation Oncology Journal
Seung-Ah Yahng, Myungshin Kim, Tae-Min Kim, Young-Woo Jeon, Jae-Ho Yoon, Seung-Hwan Shin, Sung-Eun Lee, Ki-Seong Eom, Seok Lee, Chang-Ki Min, Hee-Je Kim, Dong-Wook Kim, Jong-Wook Lee, Woo-Sung Min, Yoo-Jin Kim
Hypomethylating treatment (HMT) has been suggested as a feasible bridge to hematopoietic stem cell transplantation (HSCT), but controversies exist around influences of HMT response on transplant outcomes. To assess the safety and influences of pre-transplant HMT focusing on debulking effects and transplant outcomes, we retrospectively analyzed consecutive HSCT-eligible patients who received HMT for higher-risk MDS with excess blasts. Of all 98 patients, 11 patients failed to proceed to HSCT and HMT-related mortality occurred in 8 patients...
October 6, 2016: Oncotarget
Seunghyun Eom, Sungjoon Lim
In this paper, we proposed a stretchable radio frequency (RF) sensor to detect strain direction and level. The stretchable sensor is composed of two complementary split ring resonators (CSRR) with microfluidic channels. In order to achieve stretchability, liquid metal (eutectic gallium-indium, EGaIn) and Ecoflex substrate are used. Microfluidic channels are built by Ecoflex elastomer and microfluidic channel frames. A three-dimensional (3D) printer is used for fabrication of microfluidic channel frames. Two CSRR resonators are designed to resonate 2...
October 11, 2016: Sensors
Sang-Yong Eom, Seon-Mi Hong, Dong-Hyuk Yim, Hyo-Jin Kwon, Dae-Hoon Kim, Hyo-Yung Yun, Young-Jin Song, Sei-Jin Youn, Taisun Hyun, Joo-Seung Park, Byung Sik Kim, Yong-Dae Kim, Heon Kim
Although several studies reported genetic polymorphisms in protein kinase AMP-activated alpha 1 catalytic subunit (PRKAA1) and their associations with gastric cancer risk, few have evaluated associations between Helicobacter pylori infection and PRKAA1 gene-environment interactions. Here, we evaluated the effects of interactions between H. pylori infection and PRKAA1 polymorphisms on gastric cancer risk in Koreans. In this hospital-based case-control study, PRKAA1 genotypes were analyzed and H. pylori infection and CagA status were examined using a serologic method in 846 pairs of gastric cancer patients and controls matched for age and sex...
October 11, 2016: Cancer Medicine
Su-Yeon Kang, Youngsub Eom, Jay Won Rhim, Jong Suk Song, Hyo Myung Kim
PURPOSE: To report a case of intraocular lens (IOL) glistening after uneventful cataract surgery and in-the-bag implantation of an enVista MX60 IOL (Bausch & Lomb, Rochester, NY) in a patient with uncontrolled diabetes mellitus. METHODS: Case report. RESULTS: A 76-year-old woman with non-insulin-dependent diabetes mellitus underwent uncomplicated phacoemulsification with in-the-bag implantation of an enVista MX60 IOL. After 6 months, glistening formation within the IOL optic was observed...
October 1, 2016: Journal of Refractive Surgery
Seok Jin Kim, Soo-Mee Bang, Yoon Seok Choi, Deog-Yeon Jo, Jin Seok Kim, Hyewon Lee, Hyeon Seok Eom, Dok Hyun Yoon, Cheolwon Suh, Je-Jung Lee, Junshik Hong, Jae Hoon Lee, Youngil Koh, Kihyun Kim, Sung-Soo Yoon, Chang-Ki Min
BACKGROUND: Bendamustine may be a potential treatment option for patients with myeloma, but little is known about the utility of bendamustine as a salvage treatment, especially in Asian patients. METHODS: We performed a multicenter retrospective study of patients with relapsed or refractory myeloma who received bendamustine and prednisone. RESULTS: The records of 65 heavily pre-treated patients, who had undergone bortezomib and lenalidomide treatment (median number of previous treatments: 5), were analyzed...
September 2016: Blood Research
Yong Hwa Eom, Hyung Suk Kim, Ahwon Lee, Byung Joo Song, Byung Joo Chae
PURPOSE: B-cell lymphoma 2 (BCL2) is an antiapoptosis protein and an important clinical breast cancer prognostic marker. As the role of BCL2 is dependent on the estrogen receptor (ER) status, this effect might differ according to molecular subtypes. The aim of this study was to evaluate the relationship between the prognostic outcomes and BCL2 expression among the molecular subtypes. METHODS: We retrieved the data of 1,356 patients who were newly diagnosed with malignant breast cancer between November 2006 and November 2011...
September 2016: Journal of Breast Cancer
Attila Tajti, Peter G Szalay
Describing electronically excited states of molecules accurately poses a challenging problem for theoretical methods. Popular second order techniques like Linear Response CC2 (CC2-LR), Partitioned Equation-of-Motion MBPT(2) (P-EOM-MBPT(2)) or Equation-of-Motion CCSD(2) (EOM-CCSD(2)) often produce results that are controversial and are ill-balanced with their accuracy on valence and Rydberg type states. In this study, we connect the theory of these methods and, to investigate the origin of their different behavior, establish a series of intermediate variants...
October 7, 2016: Journal of Chemical Theory and Computation
Jieun Eom, Dong Hoon Lee, Kwangsu Lee
In recent years, many countries have been trying to integrate electronic health data managed by each hospital to offer more efficient healthcare services. Since health data contain sensitive information of patients, there have been much research that present privacy preserving mechanisms. However, existing studies either require a patient to perform various steps to secure the data or restrict the patient to exerting control over the data. In this paper, we propose patient-controlled attribute-based encryption, which enables a patient (a data owner) to control access to the health data and reduces the operational burden for the patient, simultaneously...
December 2016: Journal of Medical Systems
Ki Seong Eom, Jin Sung Cheong, Seung Jae Lee
Zinc finger proteins are among the most extensively applied metalloproteins in the field of biotechnology due to their unique structural and functional aspects as transcriptional and translational regulators. The classical zinc fingers are the largest family of zinc proteins and they provide critical roles in physiological systems from prokaryotes to eukaryotes. Two cysteine and two histidine residues (Cys₂His₂) coordinate to the zinc ion for the structural functions to generate a ββα fold, and this secondary structure supports specific interactions with their binding partners including DNA, RNA, lipids, proteins, and small molecules...
October 6, 2016: Journal of Microbiology and Biotechnology
Seok Jin Kim, Jun Sik Hong, Myung Hee Chang, Jeong-A Kim, Jae-Yong Kwak, Jin Seok Kim, Dok Hyun Yoon, Won Sik Lee, Young Rok Do, Hye Jin Kang, Hyeon-Seok Eom, Yong Park, Jong-Ho Won, Yeung-Chul Mun, Hyo Jung Kim, Jung Hye Kwon, Jee Hyun Kong, Sung Yong Oh, Sunah Lee, Sung Hwa Bae, Deok-Hwan Yang, Hyun Jung Jun, Yang Soo Kim, Hwan Jung Yun, Soon Il Lee, Min Kyoung Kim, Eun Kyung Park, Won Seog Kim, Cheolwon Suh
Central nervous system involvement remains a challenging issue in the treatment of patients with diffuse large B-cell lymphoma. We conducted a prospective cohort study with newly diagnosed diffuse large B-cell lymphoma patients receiving rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone to identify incidence and risk factors for central nervous system involvement. Among 595 patients, 279 patients received pre-treatment central nervous system evaluation, and 14 patients had central nervous system involvement at diagnosis (2...
October 4, 2016: Oncotarget
Atteq Ur Rehman, Muhammad Farooq Khan, Muhammad Arslan Shehzad, Sajjad Hussain, Muhammad Fahad Bhopal, Sang Hee Lee, Jonghwa Eom, Yongho Seo, Jongwan Jung, Soo Hong Lee
Molybdenum disulfide (MoS2) has recently emerged as a promising candidate for fabricating ultrathin-film photovoltaic devices. These devices exhibit excellent photovoltaic performance, superior flexibility and low production cost. Layered MoS2 deposited on p-Si, establishes a built-in electric field at MoS2/Si interface that helps in photogenerated carrier separation for photovoltaic operation. We propose an Al2O3 based passivation at the MoS2 surface to improve the photovoltaic performance of bulk-like MoS2/Si solar cells...
October 6, 2016: ACS Applied Materials & Interfaces
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