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https://www.readbyqxmd.com/read/28526759/il-2-high-tissue-resident-t-cells-in-the-human-liver-sentinels-for-hepatotropic-infection
#1
Laura J Pallett, Jessica Davies, Emily J Colbeck, Francis Robertson, Navjyot Hansi, Nicholas J W Easom, Alice R Burton, Kerstin A Stegmann, Anna Schurich, Leo Swadling, Upkar S Gill, Victoria Male, TuVinh Luong, Amir Gander, Brian R Davidson, Patrick T F Kennedy, Mala K Maini
The liver provides a tolerogenic immune niche exploited by several highly prevalent pathogens as well as by primary and metastatic tumors. We have sampled healthy and hepatitis B virus (HBV)-infected human livers to probe for a subset of T cells specialized to overcome local constraints and mediate immunity. We characterize a population of T-bet(lo)Eomes(lo)Blimp-1(hi)Hobit(lo) T cells found within the intrahepatic but not the circulating memory CD8 T cell pool expressing liver-homing/retention markers (CD69(+)CD103(+) CXCR6(+)CXCR3(+))...
May 19, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28511775/alpha-fetoprotein-is-a-significant-prognostic-factor-for-gastric-cancer-results-from-a-propensity-score-matching-analysis-after-curative-resection
#2
D Reim, Y-S Choi, H M Yoon, B Park, B W Eom, M-C Kook, K W Ryu, I J Choi, J Joo, Y-W Kim
BACKGROUND: Prognosis of alpha-fetoprotein positive gastric cancer (AFPP-GC) remains elusive so far due to disparities in cohort size and baseline characteristics in previous studies. A propensity score matching (PSM) analysis as well as multivariable model was performed for unbiased evaluation of the outcome in AFPGC. METHODS: Among 3034 gastric cancer patients who underwent curative gastric cancer surgery (R0, M0) at the National Cancer Center, Korea between 2002 and 2007, we identified 97 patients being positive for AFP either by elevation of serum-AFP levels >10 μg/L or by immunohistochemical staining...
May 3, 2017: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28510435/carbenes-as-electron-pair-donors-to-co2-for-c%C3%A2-%C3%A2-%C3%A2-c-tetrel-bonds-and-c-c-covalent-bonds
#3
Janet E Del Bene, Ibon Alkorta, José Elguero
Ab initio MP2/aug'-cc-pVTZ calculations have been carried out to identify stable complexes and molecules and the transition structures that interconvert them on the potential surfaces of ten singlet carbene bases acting as electron-pair donors to CO2. The carbene bases include cyclic C(NHCH)2 or NHC, C(NH2)2, an oxygen heterocyclic carbene C(OCH)2 or OHC, C(OH)2, C(CH3)2, cyclic C3H2, CCCH2, CCl2, CCH2, and CF2. Carbene:CO2 complexes stabilized by C···C tetrel bonds have been found on all potential surfaces, whereas carbene-CO2 molecules stabilized by C-C covalent bonds have been found on eight surfaces...
May 16, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28510430/nanoarchitecturing-of-natural-melanin-nanospheres-by-layer-by-layer-assembly-macroscale-anti-inflammatory-conductive-coatings-with-optoelectronic-tunability
#4
Taesik Eom, Kyungbae Woo, Whirang Cho, Jaeeun Heo, Daseul Jang, Jae In Shin, David Charles Martin, Jeong Jae Wie, Bong Sup Shim
Natural melanins are biocompatible conductors with versatile functionalities. Here, we report fabrication of multifunctional poly(vinyl alcohol)/melanin nanocomposites by layer-by-layer (LBL) assembly using melanin nanoparticles (MNPs) directly extracted from sepia officinalis inks. The LBL assembly offers facile manipulation of nanotextures as well as nm-thickness control of the macroscale film by varying solvent qualities. The time-resolved absorption was monitored during the process and quantitatively studied by fractal dimension and lacunarity analysis...
May 16, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28501973/neuroprotective-compounds-from-reynoutria-sachalinensis
#5
Min Rye Eom, Jin Bae Weon, Youn Sik Jung, Ga Hee Ryu, Woo Seung Yang, Choong Je Ma
Glutamate is a neurotransmitter in central nervous system. Overexpression of glutamate leads to oxidative stress, resulting in several neurodegenerative disorders that include Alzheimer's disease. The n-hexane fraction of stems and ethyl acetate (EtOAc) fraction of flowers of Reynoutria sachalinensis provide neuroprotection against glutamate-induced oxidative toxicity in HT22 cells. In this study, 1-decanol (1), β-amyrin (2), dammaran-3β-ol (3), campesterol (4), daucosterol (5), ergosterol peroxide (6), emodin 8-O-β-D-glucopyranoside (7), quercetin (8) and isoquercitrin (9) were isolated from n-hexane fractions of stems and EtOAc fractions of flowers of R...
May 13, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/28500703/excitation-energies-of-canonical-nucleobases-computed-by-multiconfigurational-perturbation-theories
#6
Christian Wiebeler, Veniamin Borin, Adalberto Vasconcelos Sanchez de Araújo, Igor Schapiro, Antonio Carlos Borin
In this computational work, we assessed the performance of ab initio multireference (MR) methods for the calculation of vertical excitation energies of five nucleobases: adenine, guanine, cytosine, thymine and uracil. In total, we have studied 38 singlet and 30 triplet excited states. Where possible we used the multireference configuration interaction (MRCI) method as a reference for various flavors of multireference perturbation theory to second order. In particular, we have benchmarked CASPT2, NEVPT2 and XMCQDPT2...
May 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/28496026/computed-tomography-angiography-reveals-stenosis-and-aneurysmal-dilation-of-an-aberrant-right-subclavian-artery-causing-systemic-blood-pressure-misreading-in-an-old-pekinese-dog
#7
Jaehwan Kim, Kidong Eom, Hakyoung Yoon
A 14-year-old dog weighing 4 kg presented with hypotension only in the right forelimb. Thoracic radiography revealed a round soft tissue opacity near the aortic arch and below the second thoracic vertebra on a lateral view. Three-dimensional computed tomography angiography clearly revealed stenosis and aneurysmal dilation of an aberrant right subclavian artery. Stenosis and aneurysm of an aberrant subclavian artery should be included as a differential diagnosis in dogs showing a round soft tissue opacity near the aortic arch and below the thoracic vertebra on the lateral thoracic radiograph...
May 11, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28487997/the-effectiveness-of-anti-biofilm-and-anti-virulence-properties-of-dihydrocelastrol-and-dihydrocelastryl-diacetate-in-fighting-against-methicillin-resistant-staphylococcus-aureus
#8
Seung-Gyun Woo, So-Min Lee, So-Yeon Lee, Kyoung-Hee Lim, Eun-Ju Ha, Sa-Hyun Kim, Yong-Bin Eom
Human pathogens have readily been converted into multidrug-resistant pathogens, such as methicillin-resistant Staphylococcus aureus (MRSA), because of the long-term use of conventional antibiotics. In addition, the biofilms formed by S. aureus cells are especially problematic and are related to the persistence of chronic infections because they constitute a major mechanism of promoting tolerance to diverse antimicrobial agents. Hence, the inhibitions of biofilm formation and/or toxin production are accepted as alternative means of controlling S...
May 9, 2017: Archives of Microbiology
https://www.readbyqxmd.com/read/28487798/orbital-t-cell-lymphoma-with-discrete-enlargements-of-all-extraocular-muscles-bilaterally-in-patient-with-moon-face-countenance
#9
Hideaki Kawakami, Kiyofumi Mochizuki, Hideko Goto, Naoki Watanabe, Takuji Tanaka
Purpose. To report our findings in a case of orbital T-cell lymphoma in which all of the extraocular muscles (EOMs) were bilaterally and discretely enlarged and the patient had a moon face countenance. Case. A 59-year-old woman presented with visual disturbances in her left eye, hyperemia in both eyes, and a moon face countenance. Examinations showed limited upward gaze in the right eye, blepharoptosis, hypertropia, and limited downward and rightward gaze in the left eye. Slit-lamp examination showed only chemosis and hyperemia of both eyes...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/28485938/excitation-energies-of-uo2-2-nuo-and-nun-based-on-equation-of-motion-coupled-cluster-theory-with-spin-orbit-coupling
#10
Shuo Zhang, Fan Wang
Obtaining reliable excitation energies of the isoelectronic series, UO2(2+), NUO(+), and UN2, is a challenge in quantum chemistry calculations due to importance of electron correlation and spin-orbit coupling (SOC). Vertical spin-free and spin-orbit coupled excitation energies of these molecules are calculated in this work using equation-of-motion coupled-cluster approach at the CC singles and doubles level (EOM-CCSD). SOC is included in post-SCF calculations and this treatment has been shown to provide SOC effects with high accuracy for heavy elements...
May 15, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28485567/stretchable-transparent-and-stretch-unresponsive-capacitive-touch-sensor-array-with-selectively-patterned-silver-nanowires-reduced-graphene-oxide-electrodes
#11
Taeyoung Choi, Byeong-Ung Hwang, Bo-Yeong Kim, Tran Quang Trung, Yun Hyoung Nam, Do-Nyun Kim, Kilho Eom, Nae-Eung Lee
Stretchable and transparent touch sensors are essential input devices for future stretchable transparent electronics. Capacitive touch sensors with a simple structure of only two electrodes and one dielectric are an established technology in current rigid electronics. However, the development of stretchable and transparent capacitive touch sensors has been limited due to changes in capacitance resulting from dimensional changes in elastomeric dielectrics and difficulty in obtaining stretchable transparent electrodes that are stable under large strains...
May 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28476522/preliminary-study-of-neurodevelopmental-outcomes-and-parenting-stress-in-pediatric-mitochondrial-disease
#12
Soyong Eom, Young-Mock Lee
BACKGROUND: Little is known regarding the neuropsychological profiles of pediatric patients with mitochondrial diseases or their parents, information that is crucial for improving the quality of life (QOL) for both patients and parents. We aimed to delineate neurodevelopment and psychological comorbidity in children with mitochondrial diseases in the preliminary investigation of adequate intervention methods, better prognoses, and improved QOL for both patients and parents. METHODS: Seventy children diagnosed with mitochondrial diseases were neuropsychologically evaluated...
February 2, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28468226/characteristics-of-pediatric-cheek-mass
#13
Ye Seul Eom, So Young Lim
PURPOSE: Patients with cheek mass are often referred to our medical center's department of plastic surgery. Most patients with deep cheek mass have the characteristic of a slowly growing, painless mass. We reviewed the lesion's pathology of this complex anatomic area in the pediatric population, focusing on differential diagnosis and the recent surgical strategies. METHODS: We retrospectively reviewed 56 patients visiting our department from 2009 to 2016. Data analysis included the patients' lesion characteristics, clinical presentation, presumptive diagnosis, results of preoperative investigations, pathological diagnosis, and treatment details...
May 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28466144/comparative-analysis-of-background-eeg-activity-in-childhood-absence-epilepsy-during-valproate-treatment-a-standardized-low-resolution-brain-electromagnetic-tomography-sloreta-study
#14
Jung-Hyun Shin, Tae-Hoon Eom, Young-Hoon Kim, Seung-Yun Chung, In-Goo Lee, Jung-Min Kim
Valproate (VPA) is an antiepileptic drug (AED) used for initial monotherapy in treating childhood absence epilepsy (CAE). EEG might be an alternative approach to explore the effects of AEDs on the central nervous system. We performed a comparative analysis of background EEG activity during VPA treatment by using standardized, low-resolution, brain electromagnetic tomography (sLORETA) to explore the effect of VPA in patients with CAE. In 17 children with CAE, non-parametric statistical analyses using sLORETA were performed to compare the current density distribution of four frequency bands (delta, theta, alpha, and beta) between the untreated and treated condition...
May 2, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28463649/extending-quantum-chemistry-of-bound-states-to-electronic-resonances
#15
Thomas-C Jagau, Ksenia B Bravaya, Anna I Krylov
Electronic resonances are metastable states with finite lifetime embedded in the ionization or detachment continuum. They are ubiquitous in chemistry, physics, and biology. Resonances play a central role in processes as diverse as DNA radiolysis, plasmonic catalysis, and attosecond spectroscopy. This review describes novel equation-of-motion coupled-cluster (EOM-CC) methods designed to treat resonances and bound states on an equal footing. Built on complex-variable techniques such as complex scaling and complex absorbing potentials that allow resonances to be associated with a single eigenstate of the molecular Hamiltonian rather than several continuum eigenstates, these methods extend electronic-structure tools developed for bound states to electronic resonances...
May 5, 2017: Annual Review of Physical Chemistry
https://www.readbyqxmd.com/read/28459240/correction-to-edge-structures-for-nanoscale-graphene-islands-on-co-0001-surfaces
#16
Deborah Prezzi, Daejin Eom, Kwang T Rim, Hui Zhou, Michael Lefenfeld, Shengxiong Xiao, Colin Nuckolls, Tony F Heinz, George W Flynn, Mark S Hybertsen
No abstract text is available yet for this article.
May 1, 2017: ACS Nano
https://www.readbyqxmd.com/read/28455742/eosinophilic-otitis-media-the-aftermath-of-eosinophil-extracellular-trap-cell-death
#17
REVIEW
Shigeharu Ueki, Nobuo Ohta, Masahide Takeda, Yasunori Konno, Makoto Hirokawa
PURPOSE OF REVIEW: Eosinophilic otitis media (EOM) is a refractory disease characterized by the accumulation of eosinophils in middle ear effusion and mucosa. We summarize current knowledge regarding the clinical characteristics and management of EOM. Although eosinophil activation in inflamed foci is involved in the pathogenesis of EOM, little is known about the fate of the eosinophils and aftermath of their cell death. We discuss the possibility that eosinophils undergo non-apoptotic cell death that worsens tissue damage and increases effusion viscosity...
May 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28453617/clonal-variation-of-human-induced-pluripotent-stem-cells-for-induction-into-the-germ-cell-fate
#18
Shihori Yokobayashi, Keisuke Okita, Masato Nakagawa, Tomonori Nakamura, Yukihiro Yabuta, Takuya Yamamoto, Mitinori Saitou
The mechanisms for human germ cell development have remained largely unknown, due to the difficulty in obtaining suitable experimental materials. The establishment of an in vitro system to reconstitute human germ cell development will thus provide a critical opportunity to understand its mechanisms at a molecular level. It has previously been shown that human induced pluripotent stem cells (hiPSCs) [1] are first induced into incipient mesoderm-like cells (iMeLCs), which are in turn induced into primordial-germ cell like cells (PGCLCs) with gene expression properties similar to early migratory PGCs [2, 3]...
April 27, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28445013/comparison-of-two-apheresis-systems-of-cobe-and-optia-for-autologous-peripheral-blood-stem-cell-collection
#19
Se Na Lee, Ji Yeon Sohn, Jung Hee Kong, Hyeon Seok Eom, Hyewon Lee, Sun Young Kong
Peripheral blood stem cell (PBSC) transplantation following myeloablative therapy is a mainstay of treatment for various types of malignancies. This study aimed to evaluate the differences between the Optia MNC and COBE Spectra MNC systems (Terumo BCT, Japan) according to apheresis procedures and the parameters of apheresis, products, and collection. The clinical data of 74 patients who underwent autologous PBSC collection from July 2012 to July 2015 were reviewed retrospectively. The patients comprised 48 (65%) men and 26 (35%) women with a median age of 56 yr (range, 23-66 yr)...
July 2017: Annals of Laboratory Medicine
https://www.readbyqxmd.com/read/28441892/changes-in-blood-and-urinary-cadmium-levels-and-bone-mineral-density-according-to-osteoporosis-medication-in-individuals-with-an-increased-cadmium-body-burden
#20
S-Y Eom, D-H Yim, S-M Hong, Y-D Kim, H Kim, B-S Choi, J-D Park, C-H Park, G-B Kim, S-D Yu
The aim of this study was to assess changes in bone mineral density (BMD) and cadmium (Cd) levels in blood and urine in individuals living in a Cd-contaminated area according to the type of osteoporosis medication over a three-year period. This follow-up study included 204 residents living in the vicinity of a closed copper refinery, who had been found to have elevated urinary or blood Cd levels. Cd levels in the blood and urine, as well as BMD, were measured every 6 months. After the first BMD measurement, individuals were prescribed antiresorptives such as alendronate or vitamin D and calcium, according to their BMD...
January 1, 2017: Human & Experimental Toxicology
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