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https://www.readbyqxmd.com/read/29150649/non-empirical-atomistic-dipole-interaction-model-for-quantum-plasmon-simulation-of-nanoparticles
#1
Jaechang Lim, Sungwoo Kang, Jaewook Kim, Woo Youn Kim, Seol Ryu
Plasmonic nanoparticles in the quantum regime exhibit characteristic optical properties that cannot be described by classical theories. Time-dependent density functional theory (TDDFT) is rising as a versatile tool for study on such systems, but its application has been limited to very small clusters due to rapidly growing computational costs. We propose an atomistic dipole-interaction-model for quantum plasmon simulations as a practical alternative. Namely the atomic dipole approximation represents induced dipoles with atomic polarizabilities obtained from TDDFT without empirical parameters...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150645/axonemal-lumen-dominates-cytosolic-protein-diffusion-inside-the-primary-cilium
#2
Wangxi Luo, Andrew Ruba, Daisuke Takao, Ludovit P Zweifel, Roderick Y H Lim, Kristen J Verhey, Weidong Yang
Transport of membrane and cytosolic proteins in primary cilia is thought to depend on intraflagellar transport (IFT) and diffusion. However, the relative contribution and spatial routes of each transport mechanism are largely unknown. Although challenging to decipher, the details of these routes are essential for our understanding of protein transport in primary cilia, a critically affected process in many genetic diseases. By using a high-speed virtual 3D super-resolution microscopy, we have mapped the 3D spatial locations of transport routes for various cytosolic proteins in the 250-nm-wide shaft of live primary cilia with a spatiotemporal resolution of 2 ms and <16 nm...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150142/association-between-non-alcoholic-fatty-liver-disease-and-cancer-incidence-rate
#3
Gi-Ae Kim, Han Chu Lee, Jaewon Choe, Min-Ju Kim, Min Jung Lee, Hye-Sook Chang, In Young Bae, Hong-Kyu Kim, Jihyun An, Ju Hyun Shim, Kang Mo Kim, Young-Suk Lim
BACKGROUND & AIMS: Little is known about the association between non-alcoholic fatty liver disease (NAFLD) and cancer development. This study investigated the cancer incidence rates in NAFLD and analysed the association between NAFLD and cancer development. METHODS: This historical cohort study included subjects who were followed up for >1 year after having a heath checkup at a tertiary hospital in Korea from September 1, 2004 to December 31, 2005. NAFLD was diagnosed by ultrasonographic detection of hepatic steatosis in the absence of other known liver disease, including alcoholic or viral hepatitis...
November 2, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/29150048/dna-dependent-protein-kinase-modulates-the-anti-cancer-properties-of-silver-nanoparticles-in-human-cancer-cells
#4
Hui Kheng Lim, Resham Lal Gurung, M Prakash Hande
Silver nanoparticles (Ag-np) were reported to be toxic to eukaryotic cells. These potentially detrimental effects of Ag-np can be advantageous in experimental therapeutics. They are currently being employed to enhance the therapeutic efficacy of cancer drugs. In this study, we demonstrate that Ag-np treatment trigger the activation of DNA-PKcs and JNK pathway at selected doses, presumably as a physiologic response to DNA damage and repair in normal and malignant cells. Ag-np altered the telomere dynamics by disrupting the shelterin complex located at the telomeres and telomere lengths...
December 2017: Mutation Research
https://www.readbyqxmd.com/read/29149959/urinary-tissue-inhibitor-of-metalloproteinase-and-insulin-like-growth-factor-7-as-early-biomarkers-of-delayed-graft-function-after-kidney-transplantation
#5
J Yang, S Y Lim, M-G Kim, C-W Jung, W-Y Cho, S-K Jo
BACKGROUND: Recently, urinary tissue inhibitor of metalloproteinase-2 (TIMP-2) and insulin-like growth factor-7 (IGFBP-7), markers for G1 cell cycle arrest, have been identified and validated in predicting the development of acute kidney injury in critically ill patients. It is unknown, however, whether these two biomarkers could predict the development of delayed graft function (DGF) after kidney transplantation (KT). METHODS: This is a single-center, prospective, observational study...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149840/geometric-morphometrics-reveals-shifts-in-flower-shape-symmetry-and-size-following-gene-knockdown-of-cycloidea-and-anthocyanidin-synthase
#6
Brent A Berger, Vincent A Ricigliano, Yoland Savriama, Aedric Lim, Veronica Thompson, Dianella G Howarth
BACKGROUND: While floral symmetry has traditionally been assessed qualitatively, recent advances in geometric morphometrics have opened up new avenues to specifically quantify flower shape and size using robust multivariate statistical methods. In this study, we examine, for the first time, the ability of geometric morphometrics to detect morphological differences in floral dorsoventral asymmetry following virus-induced gene silencing (VIGS). Using Fedia graciliflora Fisch. & Meyer (Valerianaceae) as a model, corolla shape of untreated flowers was compared using canonical variate analysis to knockdown phenotypes of CYCLOIDEA2A (FgCYC2A), ANTHOCYANIDIN SYNTHASE (FgANS), and empty vector controls...
November 17, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/29149504/mybl1-rearrangements-and-myb-amplification-in-breast-adenoid-cystic-carcinomas-lacking-the-myb-nfib-fusion-gene
#7
Jisun Kim, Felipe C Geyer, Luciano G Martelotto, Charlotte K Y Ng, Raymond S Lim, Pier Selenica, Anqi Li, Fresia Pareja, Nicola Fusco, Marcia Edelweiss, Rahul Kumar, Rodrigo Gularte-Merida, Andre N Forbes, Ekta Khurana, Odette Mariani, Sunil Badve, Anne Vincent-Salomon, Larry Norton, Jorge S Reis-Filho, Britta Weigelt
Breast adenoid cystic carcinoma (AdCC), a rare type of triple-negative breast cancer (TNBC), has been shown to be driven by MYB pathway activation, most often underpinned by the MYB-NFIB fusion gene. Alternative genetic mechanisms, such as MYBL1 rearrangements, have been reported in MYB-NFIB-negative salivary gland AdCCs. Here we report on the molecular characterization by massively parallel sequencing of four breast AdCCs lacking the MYB-NFIB fusion gene. In two cases, we identified MYBL1 rearrangements (MYBL1-ACTN1 and MYBL1-NFIB), which were associated with MYBL1 overexpression...
November 17, 2017: Journal of Pathology
https://www.readbyqxmd.com/read/29149487/fabrication-of-chelate-setting-%C3%AE-tricalcium-phosphate-cement-using-sodium-citrate-and-sodium-alginate-as-mixing-solution-and-its-in-vivo-osteoconductivity
#8
Toshiisa Konishi, Poon Nian Lim, Michiyo Honda, Masaki Nagaya, Hiroshi Nagashima, Eng San Thian, Mamoru Aizawa
Moldable and injectable calcium-phosphate cements (CPCs) are material candidates for bone replacement applications. In the present study, we examined the effectiveness of sodium alginate and sodium citrate additives to the liquid phase of CPC, in improving its handling property as well as mechanical strength. The use of these additives enhanced the handling property significantly, in terms of consistency as compared to CPC without additives due to the liquefying effect caused by the adsorption of citrate ions on the cement particles...
November 17, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29149356/early-occurrence-of-sinking-skin-flap-syndrome-in-a%C3%A2-state-of-intracranial-hypertension-case-report
#9
Jeongwook Lim, Hyon-Jo Kwon, Seon-Hwan Kim, Hyeon-Song Koh, Seung-Won Choi
No abstract text is available yet for this article.
November 17, 2017: Clinical Neuroradiology
https://www.readbyqxmd.com/read/29147873/comparison-of-the-adjuvanticity-of-two-adjuvant-formulations-containing-de-o-acylated-lipooligosaccharide-on-japanese-encephalitis-vaccine-in-mice
#10
Ara Ko, Seo Ri Wui, Ji In Ryu, Hien Thi Thu Do, Yeon Jeong Lee, Soo Jeong Lim, Inmoo Rhee, Dae Im Jung, Jin-Ah Park, Jung-Ah Choi, Man Ki Song, Na Gyong Lee
Adjuvants are essential vaccine components used to enhance, accelerate, and/or prolong adaptive immunity against specific vaccine antigens. In this study, we compared the adjuvanticity of two adjuvant formulations containing de-O-acylated lipooligosaccharide (dLOS), a toll-like receptor 4 agonist, on the Japanese encephalitis (JE) vaccine in mice. Mice were immunized once or twice at a two-week interval with inactivated JE vaccine in the absence or presence of adjuvant. We found that both the alum- and the liposome-based formulation induced significantly faster and higher serum IgG antibody responses as compared with the non-adjuvanted vaccine after either one or two immunizations...
November 17, 2017: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/29147835/automatic-localization-of-the-left-ventricular-blood-pool-centroid-in-short-axis-cardiac-cine-mr-images
#11
Li Kuo Tan, Yih Miin Liew, Einly Lim, Yang Faridah Abdul Aziz, Kok Han Chee, Robert A McLaughlin
In this paper, we develop and validate an open source, fully automatic algorithm to localize the left ventricular (LV) blood pool centroid in short axis cardiac cine MR images, enabling follow-on automated LV segmentation algorithms. The algorithm comprises four steps: (i) quantify motion to determine an initial region of interest surrounding the heart, (ii) identify potential 2D objects of interest using an intensity-based segmentation, (iii) assess contraction/expansion, circularity, and proximity to lung tissue to score all objects of interest in terms of their likelihood of constituting part of the LV, and (iv) aggregate the objects into connected groups and construct the final LV blood pool volume and centroid...
November 17, 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29147516/a-new-route-to-n-aromatic-heterocycles-from-the-hydrogenation-of-diesters-in-the-presence-of-anilines
#12
Yiping Shi, Paul C J Kamer, David J Cole-Hamilton, Michelle Harvie, Emma F Baxter, Kate J C Lim, Peter Pogorzelec
The hydrogenation of dicarboxylic acids and their esters in the presence of anilines provides a new synthesis of heterocycles. [Ru(acac)3] and 1,1,1-tris(diphenylphosphinomethyl)ethane (triphos) gave good to excellent yields of the cyclic amines at 220 °C. When aqueous ammonia was used with dimethyl 1,6-hexadienoic acid, ε-caprolactam was obtained in good yield. A side reaction involving alkylation of the amine by methanol was suppressed by using diesters derived from longer chain and branched alcohols. Hydrogenation of optically pure diesters (dimethyl (R)-2-methylbutanedioate and dimethyl (S)-2-methylbutanedioate) with aniline afforded racemic 3-methyl-1-phenylpyrrolidine in 78% yield...
October 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/29146219/sexual-function-in-couples-with-or-without-female-incontinent-partners-correlates-and-predictors
#13
Renly Lim, Men Long Liong, Wing Seng Leong, Nurzalina Abdul Karim Khan, Kah Hay Yuen
OBJECTIVE: To evaluate the correlation between sexual function of couples with and without stress urinary incontinence (SUI) partners, and to identify predictors of poor sexual function. METHODS: A cross-sectional survey was conducted involving sexually active females with or without SUI aged at least 21 years old, and their respective partners. Both partners completed the Golombok Rust Inventory of Sexual Satisfaction (GRISS), a 28-item multidimensional measure with separate forms for male and female designed to assess sexual satisfaction of both partners...
November 13, 2017: Urology
https://www.readbyqxmd.com/read/29145878/improving-readiness-for-recruitment-through-simulated-trial-activation-the-adjuvant-steroids-in-adults-with-pandemic-influenza-asap-trial
#14
Wei Shen Lim, Garry Meakin, Clare Brittain, Thomas Bewick, Lelia Duley
BACKGROUND: Research in public health emergencies requires trials to be set up in readiness for activation at short notice and in anticipation of limited timelines for patient recruitment. We conducted a simulated activation of a hibernating pandemic influenza clinical trial in order to test trial processes and to determine the value of such simulation in maintaining trial readiness. METHODS: The simulation involved the Nottingham Clinical Trials Unit, one participating hospital, one manufacturing unit and the Investigational Medicinal Product (IMP) supplier...
November 16, 2017: Trials
https://www.readbyqxmd.com/read/29145573/human-papillomavirus-hpv-and-somatic-egfr-mutations-are-essential-mutually-exclusive-oncogenic-mechanisms-for-inverted-sinonasal-papillomas-and-associated-sinonasal-squamous-cell-carcinomas
#15
A M Udager, J B McHugh, C M Goudsmit, H C Weigelin, M S Lim, K S J Elenitoba-Johnson, B L Betz, T E Carey, N A Brown
Background: Inverted sinonasal papilloma (ISP) is a locally aggressive neoplasm often associated with sinonasal squamous cell carcinoma (SNSCC). While the etiology of ISP is not well understood, human papillomavirus (HPV) has been detected in a subset of cases. Our group recently identified activating somatic EGFR mutations in the majority of ISP and ISP-associated SNSCC. However, the relationship between EGFR mutations and HPV infection has not been explored. Patients and Methods: We evaluated 58 ISP and 22 ISP-associated SNSCC (including 13 patients with matched ISP/SNSCC samples), as well as 14 SNSCC without clinical or pathologic evidence of an associated ISP...
November 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29144863/in-response-to-medical-assistance-in-dying-in-canada
#16
Michael Ross McKenzie, Philippa Hawley, Doris Barwich, Howard J Lim
No abstract text is available yet for this article.
November 16, 2017: Journal of Oncology Practice
https://www.readbyqxmd.com/read/29144153/intravoxel-incoherent-motion-diffusion-weighted-mr-imaging-for-differentiation-of-benign-and-malignant-musculoskeletal-tumors-at-3-t
#17
Hyun Kyong Lim, Won-Hee Jee, Joon-Yong Jung, Mun Young Paek, InSeong Kim, Chan-Kwon Jung, Yang-Guk Chung
OBJECTIVE: To evaluate the intravoxel incoherent motion (IVIM) diffusion-weighted (DW) magnetic resonance imaging (MRI) for differentiating between benign and malignant musculoskeletal tumors at 3 T. METHODS: Sixty-five patients with treatment-naïve musculoskeletal tumors (47 malignant and 23 benign lesions) who underwent 3 T MRI including IVIM DW imaging were included. IVIM-derived parameters included pure diffusion coefficient (D), perfusion related incoherent microcirculation (D*, pseudodiffusion coefficient), and perfusion fraction (f)...
November 16, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29143984/crispr-cas9-mediated-knockout-of-lim-domain-only-4-retards-organ-of-corti-cell-growth
#18
Rajamani Rathinam, Rita Rosati, Samson Jamesdaniel
Lim-domain only 4 (LMO4) plays a critical role in mediating the ototoxic side-effects of cisplatin, a highly effective anti-cancer drug. However, the signaling mechanism by which cochlear LMO4 mediates otopathology is yet to be fully understood. Knockout cell culture models are useful tools for investigating the functional roles of novel genes and delineating associated signaling pathways. Therefore, LMO4 knockout organ of Corti cells were generated by using the CRISPR (clustered regularly interspersed short palindromic repeats)/Cas9 (CRISPR-associated protein 9) system...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29143811/surgery-circadian-rhythms-influence-surgical-outcomes
#19
Gregory B Lim
No abstract text is available yet for this article.
November 16, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/29143405/cost-effectiveness-modeling-of-repetitive-transcranial-magnetic-stimulation-compared-to-electroconvulsive-therapy-for-treatment-resistant-depression-in-singapore
#20
Ying Jiao Zhao, Phern Chern Tor, Ai Leng Khoo, Monica Teng, Boon Peng Lim, Yee Ming Mok
BACKGROUND: Compared to electroconvulsive therapy (ECT), the cost-effectiveness of repetitive transcranial magnetic stimulation (rTMS) in the management of treatment-resistant depression (TRD) remains unclear. OBJECTIVE/HYPOTHESIS: This study evaluated the cost-effectiveness of rTMS vs. ECT for TRD from Singapore societal perspective. METHODS: We constructed a Markov model to project the cost and benefit of rTMS compared with ECT over one year in patients with TRD...
November 16, 2017: Neuromodulation: Journal of the International Neuromodulation Society
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