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https://www.readbyqxmd.com/read/29156805/circulating-tumor-dna-shows-variable-clonal-response-of-breast-cancer-during-neoadjuvant-chemotherapy
#1
Ji-Yeon Kim, Donghyun Park, Dae-Soon Son, Seok Jin Nam, Seok Won Kim, Hae Hyun Jung, Yeon Jeong Kim, Gahee Park, Woong-Yang Park, Jeong Eon Lee, Yeon Hee Park
Circulating tumor DNA (ctDNA) correlates with tumor burden and provides early detection of treatment response and tumor genetic alterations in breast cancer (BC). In this study, we aimed to identify genetic alterations during the process of tumor clonal evolution and examine if ctDNA level well indicated clinical response to neoadjuvant chemotherapy (NAC) and BC recurrence. We performed targeted ultra-deep sequencing of plasma DNAs, matched germline DNAs and tumor DNAs from locally advanced BC patients. Serial plasma DNAs were collected at diagnosis, after the 1(st) cycle of NAC and after curative surgery...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156703/preclinical-efficacy-of-the-novel-competitive-nampt-inhibitor-stf-118804-in-pancreatic-cancer
#2
Jair Machado Espindola-Netto, Claudia C S Chini, Mariana Tarragó, Enfeng Wang, Shamit Dutta, Krishnendu Pal, Debabrata Mukhopadhyay, Mauro Sola-Penna, Eduardo N Chini
NAD salvage is one of the pathways used to generate NAD in mammals. Nicotinamide phosphoribosyltransferase (NAMPT), the rate-limiting enzyme in this pathway, uses nicotinamide (NAM) to generate nicotinamide mononucleotide (NMN). NMN is one of the main precursors of NAD synthesis in cells. Our previous study showed the importance of NAMPT in maintaining NAD levels in pancreatic ductal adenocarcinoma cells (PDAC), and that the NAMPT inhibitor FK866 decreased pancreatic cancer growth. We now tested the effect of STF-118804, a new highly specific NAMPT inhibitor, in models of pancreatic ductal adenocarcinoma...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156522/the-prevention-of-tnf-%C3%AE-ifn-%C3%AE-mixture-induced-inflammation-in-human-keratinocyte-and-atopic-dermatitis-like-skin-lesions-in-nc-nga-mice-by-mineral-balanced-deep-sea-water
#3
Kyu-Shik Lee, So-Young Chun, Min-Gu Lee, Soyoung Kim, Tae-Jung Jang, Kyung-Soo Nam
Atopic dermatitis (AD) is a chronic inflammatory skin disease caused by environmental and chemical allergens. Despite the complexity of its pathogenesis, many investigations have shown that substances having anti-inflammatory activities alleviated the pathology of AD. Here, we evaluated the effects of mineral-balanced deep sea water (DSW) on AD-like skin damage in both in vitro and in vivo. The results showed that mineral-balanced DSW regressed inflammatory chemokines, such as macrophage-derived chemokine (MDC), thymus- and activation-regulated chemokine (TARC) and regulated on activation, normal T-cell expressed and secreted (RANTES), and cytokines, interleukin (IL)-6 and granulocyte-macrophage colony-stimulating factor (GM-CSF) mRNA expression in HaCaT immortal human keratinocyte treated with tumor necrosis factor (TNF)-α/ interferon (IFN)-γ mixture...
November 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29156011/pulmonary-resection-for-patients-with-multidrug-resistant-tuberculosis-based-on-survival-outcomes-a-systematic-review-and-meta-analysis
#4
Hyunsuk Frank Roh, Jihoon Kim, Seung Hyuk Nam, Jung Mogg Kim
We investigated the survival benefit of pulmonary resection for patients with multidrug-resistant tuberculosis. To weigh the survival benefit of pulmonary resection for patients with multidrug-resistant tuberculosis who have undergone surgical treatment combined with medical chemotherapy compared with medical chemotherapy alone, we did a meta-analysis of available studies containing a hazard ratio for pulmonary resection. Among 1726 articles, 6 clinical reports, with a mean sample size of 47 patients per report, met the inclusion criteria...
October 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29153823/a-randomized-trial-evaluating-the-efficacy-and-safety-of-alirocumab-in-south-korea-and-taiwan-odyssey-kt
#5
Kwang Kon Koh, Chang Wook Nam, Ting-Hsing Chao, Ming-En Liu, Chiung-Jen Wu, Dong-Soo Kim, Chong-Jin Kim, Ivy Li, Jianyong Li, Marie T Baccara-Dinet, Pi-Jung Hsiao, Chern-En Chiang
BACKGROUND: Alirocumab, a fully human monoclonal antibody to proprotein convertase subtilisin/kexin type 9, has been shown to provide significant reductions in low-density lipoprotein cholesterol (LDL-C). Data about its efficacy and safety in patients from South Korea and Taiwan are limited. OBJECTIVE: ODYSSEY KT assessed the efficacy and safety of alirocumab in patients from South Korea and Taiwan. METHODS: Patients with hypercholesterolemia at high cardiovascular risk who were on maximally tolerated statin were randomized (1:1) to alirocumab (75 mg every 2 weeks, with dose increase to 150 mg every 2 weeks at week 12 if LDL-C ≥70 mg/dL at week 8) or placebo for 24 weeks...
October 19, 2017: Journal of Clinical Lipidology
https://www.readbyqxmd.com/read/29152794/highly-sustainable-zinc-anodes-for-the-rechargeable-hybrid-aqueous-battery
#6
Kyung Eun Kate Sun, Tuan Hoang, The Nam Long Doan, Yan Yu, Pu Chen
The synthesis of novel zinc electrodes has been successfully implemented by the electroplating method with the aid of inorganic additives in the electroplating solution. The selected inorganic additives are indium sulfate, tin oxide, and boric acid. From X-ray diffraction results, the synthesized zinc electrodes prefer (002) and/or (103) crystallographic orientations, representing basal morphology and high resistance to dendrite growth. The corrosion rates of these electroplated zinc samples decrease as much as 11 times smaller than the rate of a zinc foil when the zinc materials are in contact with the aqueous electrolyte of a rechargeable hybrid aqueous battery (ReHAB)...
November 19, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29152467/an-unruptured-anterior-communicating-artery-aneurysm-presenting-with-left-homonymous-hemianopsia-a-case-report
#7
Jae Wook Kim, Taek Kyun Nam, Ki Su Park, Yong Sook Park, Jeong Taik Kwon
Unruptured cerebral aneurysms sometimes present with visual symptomsdue to compression of the visual pathways. However, until now, unruptured anterior communicating artery (ACoA) aneurysms presenting visual field defects have been extremely rare. The authors report the case of a 51-year-old woman who presented with left homonymous hemianopsia. Radiological findings demonstrated an ACoA aneurysm filled with thrombus, that was compressing the optic chiasm and post-chiasmal tract. The patient underwent clipping of the aneurysm, which resolved the visual field defect...
June 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
https://www.readbyqxmd.com/read/29151835/opuntia-humifusa-modulates-morphological-changes-characteristic-of-asthma-via-il-4-and-il-13-in-an-asthma-murine-model
#8
Soon-Young Lee, Chun-Sik Bae, Young-Hoon Choi, Nam-Sook Seo, Chang-Su Na, Jin-Cheol Yoo, Seung Sik Cho, Dae-Hun Park
Asthma is a chronic pulmonary disease that affects an estimated 235 million people worldwide, but asthma drugs have many adverse effects. Opuntia humifusa (eastern prickly pear) has been used as a food and traditional medicine worldwide; however, its anti-asthmatic effects have not been reported. We evaluated O. humifusa as a potential therapeutic or preventive component of anti-asthmatic drugs. We divided ovalbumin-sensitized mice into the following groups: normal control, asthma-induced control, dexamethasone-treated group (positive control), 50 mg/kg O...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/29151631/phylogenetic-relationships-of-eight-new-dacrymycetes-collected-from-new-zealand
#9
T Shirouzu, K Hosaka, K-O Nam, B S Weir, P R Johnston, T Hosoya
Dacrymycetes, sister to Agaricomycetes, is a noteworthy lineage for studying the evolution of wood-decaying basidiomycetes; however, its species diversity and phylogeny are largely unknown. Species of Dacrymycetes previously used in molecular phylogenetic analyses are mainly derived from the Northern Hemisphere, thus insufficient knowledge exists concerning the Southern Hemisphere lineages. In this study, we investigated the species diversity of Dacrymycetes in New Zealand. We found 11 previously described species, and eight new species which were described here: Calocera pedicellata, Dacrymyces longistipitatus, D...
June 2017: Persoonia
https://www.readbyqxmd.com/read/29151106/survival-outcome-of-intermediate-grade-salivary-gland-carcinoma
#10
Gi Cheol Park, Jong-Lyel Roh, Kyung-Ja Cho, Yong Gi Jung, Hyoun Wook Lee, Tae Gyu Kim, Seung-Ho Choi, Soon Yuhl Nam, Sang Yoon Kim
OBJECTIVE: Histological grade is the most important factor for defining treatment strategies and predicting prognosis for salivary gland carcinoma (SGC). We examined factors affecting long-term recurrence and survival among intermediate-grade SGC (IGSGC) patients to define optimal treatment modalities and outcomes. METHODS: We reviewed the clinical and pathological data on 108 IGSGC patients who underwent definitive surgery with or without postoperative radiotherapy...
November 18, 2017: Oncology
https://www.readbyqxmd.com/read/29150986/memory-t-cells-are-significantly-increased-in-rejecting-liver-allografts-of-rhesus-monkeys
#11
Hwajung Kim, Hyeyoung Kim, Sun-Kyung Lee, Xue-Li Jin, Tae Jin Kim, Chanho Park, Jae-Il Lee, Hyo-Sin Kim, Suk Kyun Hong, Kyung Chul Yoon, Sung Woo Ahn, Kyoung-Bun Lee, Nam-Joon Yi, Jaeseok Yang, Kwang-Woong Lee, Wayne J Hawthorne, Kyung-Suk Suh
INTRODUCTION: The Rhesus monkey (RM) is an excellent preclinical model in kidney, heart and islet transplantation that has provided the basis for new immunosuppressive protocols for clinical studies. However, there remain relatively few liver transplantation (LT) models in nonhuman primates. In this study, we analyzed the immune cell populations of PBMCs and secondary lymphoid organs along with livers of normal rhesus monkeys and compared them to those of rejecting liver transplanted recipient's following withdrawal of immunosuppression...
November 18, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/29150689/distinct-genetic-architectures-for-phenotype-means-and-plasticities-in-zea-mays
#12
Aaron Kusmec, Srikant Srinivasan, Dan Nettleton, Patrick S Schnable
Phenotypic plasticity describes the phenotypic variation of a trait when a genotype is exposed to different environments. Understanding the genetic control of phenotypic plasticity in crops such as maize is of paramount importance for maintaining and increasing yields in a world experiencing climate change. Here, we report the results of genome-wide association analyses of multiple phenotypes and two measures of phenotypic plasticity in a maize nested association mapping (US-NAM) population grown in multiple environments and genotyped with ~2...
September 2017: Nature Plants
https://www.readbyqxmd.com/read/29150348/de-novo-head-and-neck-cancer-arising-in-solid-organ-transplantation-recipients-the-asan-medical-center-experience
#13
Marn Joon Park, Jong-Lyel Roh, Seung-Ho Choi, Soon Yuhl Nam, Sang Yoon Kim, Yoon Se Lee
OBJECTIVE: De novo cancers of head and neck area in solid organ transplantation recipients show standardized incidence ratio (SIR) of 3.8. Immunosuppression following transplantation is suggested to play as a crucial factor in pathogenesis of secondary malignancy. Prognosis of head and neck cancer arising in solid organ transplantation recipients is proven to have poor prognosis. The incidence, risk, prognosis, and survival of de novo malignancy of head and neck area in solid organ transplantation recipients in single-tertiary medical center followed up for 20 years...
November 14, 2017: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/29149625/the-effects-of-pre-and-post-slaughter-spray-application-with-organic-acids-on-microbial-population-reductions-on-beef-carcasses
#14
Hoa Van Ba, Hyun-Woo Seo, Seong Pil-Nam, Yoon-Seok Kim, Beom Young Park, Sung-Sil Moon, Se-Ju Kang, Yong-Min Choi, Jin-Hyoung Kim
As an attempt to control bacterial cross-contamination of beef carcasses, in the present investigation acetic acid and lactic acid (3% v/v) were used for bacterial decontamination. For the decontamination, cows were sprayed with each above acid at two different stages; (i) on live animal's hides, (ii) on carcass surfaces immediately after slaughter. Microbiological samples were taken on different hide areas of animals before spraying and on carcass surfaces at 24h after spraying. Meat quality traits were also analyzed on the sprayed animals...
November 6, 2017: Meat Science
https://www.readbyqxmd.com/read/29149310/counting-indirect-crisis-related-deaths-in-the-context-of-a-low-resilience-health-system-the-case-of-maternal-and-neonatal-health-during-the-ebola-epidemic-in-sierra-leone
#15
Laura Sochas, Andrew Amos Channon, Sara Nam
Although the number of direct Ebola-related deaths from the 2013 to 2016 West African Ebola outbreak has been quantified, the number of indirect deaths, resulting from decreased utilization of routine health services, remains unknown. Such information is a key ingredient of health system resilience, essential for adequate allocation of resources to both 'crisis response activities' and 'core functions'. Taking stock of indirect deaths may also help the concept of health system resilience achieve political traction over the traditional approach of disease-specific surveillance...
November 1, 2017: Health Policy and Planning
https://www.readbyqxmd.com/read/29148363/hymenobacter-defluvii-sp-nov-isolated-from-wastewater-of-an-acidic-water-neutralization-facility
#16
Joo Won Kang, Seon Choi, Han Na Choe, Chi Nam Seong
A non-motile, pink-coloured and rod-shaped bacterium, designated strain POA9(T), was isolated from a wastewater treatment facility, Republic of Korea. Cells were Gram-reaction-negative, aerobic, catalase-positive and oxidase-negative. The major fatty acids were C16 : 1ω5c, iso-C15 : 0, summed feature 3 (C16 : 1ω6c and/or C16 : 1ω7c) and anteiso-C15 : 0. The strain contained MK-7 as the only isoprenoid quinone, phosphatidylethanolamine as the major polar lipid and sym-homospermidine as the major polyamine...
November 17, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29148098/absence-or-mislocalization-of-dnah5-is-a-characteristic-marker-for-motile-ciliary-abnormality-in-nasal-polyps
#17
Qianhui Qiu, Yang Peng, Zhenchao Zhu, Zhuo Chen, Chi Zhang, Hsiao Hui Ong, Kai Sen Tan, Haiyu Hong, Yan Yan, Haoqi Huang, Jing Liu, Xianqing Li, H N Nam, N T N Dung, Li Shi, Qintai Yang, Colin D Bingle, De-Yun Wang
OBJECTIVE: Motile cilia impairment is a common condition in patients with chronically inflamed airways, such as is seen in nasal polyps (NPs). The mechanism underlying this pathogenic condition is complex and not fully understood. METHODS: We investigated the presence and localization of dynein axonemal heavy chain 5 (DNAH5) in motile cilia using immunofluorescence staining in paraffin-embedded nasal biopsies from NPs (n = 120) and inferior turbinate mucosa (n = 35) of healthy controls...
November 17, 2017: Laryngoscope
https://www.readbyqxmd.com/read/29147896/genetic-diagnosis-before-surgery-has-an-impact-on-surgical-decision-in-brca-mutation-carriers-with-breast-cancer
#18
Sungmin Park, Jeong Eon Lee, Jai Min Ryu, Issac Kim, Soo Youn Bae, Se Kyung Lee, Jonghan Yu, Seok Won Kim, Seok Jin Nam
BACKGROUND: The first aim of our study was to evaluate surgical decision-making by BRCA mutation carriers with breast cancer based on the timing of knowledge of their BRCA mutation status. The second aim was to evaluate breast cancer outcome following surgical treatment. METHODS: This was a retrospective study of 164 patients diagnosed with invasive breast cancer, tested for BRCA mutation, and treated with primary surgery between 2004 and 2015 at Samsung Medical Center in Seoul, Korea...
November 16, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29147542/photocatalytic-oxidation-of-benzene-to-phenol-using-dioxygen-as-an-oxygen-source-and-water-as-an-electron-source-in-the-presence-of-a-cobalt-catalyst
#19
Ji Won Han, Jieun Jung, Yong-Min Lee, Wonwoo Nam, Shunichi Fukuzumi
Photocatalytic hydroxylation of benzene to phenol by dioxygen (O2) occurs under visible light irradiation of an O2-saturated acetonitrile solution containing [Ru(II)(Me2phen)3](2+) as a photocatalyst, [Co(III)(Cp*)(bpy)(H2O)](2+) as an efficient catalyst for both the water oxidation and benzene hydroxylation reactions, and water as an electron source in the presence of Sc(NO3)3. The present study reports the first example of photocatalytic hydroxylation of benzene with O2 and H2O, both of which are the most green reagents, under visible light irradiation to afford a high turnover number (e...
October 1, 2017: Chemical Science
https://www.readbyqxmd.com/read/29147144/effects-of-spectral-smearing-of-stimuli-on-the-performance-of-auditory-steady-state-response-based-brain-computer-interface
#20
Jong Ho Hwang, Kyoung Won Nam, Dong Pyo Jang, In Young Kim
There have been few reports that investigated the effects of the degree and pattern of a spectral smearing of stimuli due to deteriorated hearing ability on the performance of auditory brain-computer interface (BCI) systems. In this study, we assumed that such spectral smearing of stimuli may affect the performance of an auditory steady-state response (ASSR)-based BCI system and performed subjective experiments using 10 normal-hearing subjects to verify this assumption. We constructed smearing-reflected stimuli using an 8-channel vocoder with moderate and severe hearing loss setups and, using these stimuli, performed subjective concentration tests with three symmetric and six asymmetric smearing patterns while recording electroencephalogram signals...
December 2017: Cognitive Neurodynamics
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