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https://www.readbyqxmd.com/read/28632116/reyranella-terrae-sp-nov-isolated-from-an-agricultural-soil-and-emended-description-of-the-genus-reyranella
#1
Hyosun Lee, Dong-Uk Kim, Suyeon Lee, Sooyeon Park, Jung-Hoon Yoon, Chi Nam Seong, Jong-Ok Ka
A novel strain designated 11G32T was isolated from an agricultural soil cultivated with Chinese cabbage in Korea. The cells were Gram-stain-negative, aerobic, non-motile and rod-shaped. The strain grew at 15-28 °C (optimum, 20 °C), pH 5.0-7.0 (optimum, pH 5.0-6.0) and without NaCl. Phylogenetically, the strain was found to be closely related to members of the genus Reyranella and showed 16S rRNA gene sequence similarities of 97.18, 96.76 and 95.99 % with Reyranella graminifolii Wo-34T, Reyranella massiliensis 521T and Reyranella soli KIS14-15T, respectively...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28630681/imaging-optical-scattering-of-butterfly-wing-scales-with-a-microscope
#2
Jinxin Fu, Beom-Jin Yoon, Jung Ok Park, Mohan Srinivasarao
A new optical method is proposed to investigate the reflectance of structurally coloured objects, such as Morpho butterfly wing scales and cholesteric liquid crystals. Using a reflected-light microscope and a digital single-lens reflex (DSLR) camera, we have successfully measured the two-dimensional reflection pattern of individual wing scales of Morpho butterflies. We demonstrate that this method enables us to measure the bidirectional reflectance distribution function (BRDF). The scattering image observed in the back focal plane of the objective is projected onto the camera sensor by inserting a Bertrand lens in the optical path of the microscope...
August 6, 2017: Interface Focus
https://www.readbyqxmd.com/read/28628832/young-leaves-of-reed-phragmites-communis-suppress-melanogenesis-and-oxidative-stress-in-b16f10-melanoma-cells
#3
Mi-Ok Sim, Ju Ri Ham, Mi-Kyung Lee
This study investigated the effects young leaves of reed (Phragmites communis) water extract (YLR) on melanogenesis and oxidative stress using B16F10 cells. YLR decreased the intracellular melanin content, protein expression and enzyme activity of tyrosinase in a dose-dependent manner. YLR significantly decreased the gene and protein expression of melanogeneis-related proteins, such as microphthalmia-associated transcription factor (MITF), and tyrosinase-related protein-1 and -2. In addition, YLR up-regulated the melanogenesis inhibitory proteins, extracellular signal-regulated kinase (ERK) and protein kinase B (AKT), while it dose-dependently down-regulated p38 and cAMP response element-binding protein (CREB)...
June 16, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28624012/differentiation-of-small-intrahepatic-mass-forming-cholangiocarcinoma-from-small-liver-abscess-by-dual-source-dual-energy-ct-quantitative-parameters
#4
Ji Eun Kim, Hyun Ok Kim, Kyungsoo Bae, Jae Min Cho, Ho Cheol Choi, Dae Seob Choi
PURPOSE: To investigate the use of dual source dual-energy CT (DECT) quantitative parameters compared with the use of conventional CT for differentiating small (≤3cm) intrahepatic mass-forming cholangiocarcinoma (IMCC) from small liver abscess (LA) during the portal venous phase (PVP). MATERIAL AND METHODS: In this institutional review board-approved, retrospective study, 64 patients with IMCCs and 52 patients with LAs who were imaged in PVP using dual-energy mode were included retrospectively...
July 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28623716/aldose-reductase-inhibitors-attenuate-%C3%AE-amyloid-induced-tnf-%C3%AE-production-in-microlgia-via-ros-pkc-mediated-nf-%C3%AE%C2%BAb-and-mapk-pathways
#5
Xiao-Min Song, Qian Yu, Xin Dong, Hyun Ok Yang, Ke-Wu Zeng, Jun Li, Peng-Fei Tu
Microglia-mediated neuroinflammation is a key risk factor to the development of Alzheimer' disease (AD). Aldose reductase (AR) has been found to be widely involved in inflammation-related diseases; however, whether aldose reductase inhibitors (ARIs) could be used to treat neuroinflammation is rarely reported. This study aims to evaluate the anti-neuroinflammatory effects of two major ARIs of Sorbinil (Sor) and Zopolrestat (Zol) in β-amyloid protein (Aβ)-induced microglia (BV-2). We find that Sor and Zol significantly inhibit TNF-α, IL-1β, IL-6 production from microglia in response to Aβ stimulation...
June 14, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28622864/isolation-and-characterization-of-avibacterium-paragallinarum-with-different-nicotinamide-adenine-dinucleotide-requirements
#6
Ok-Mi Jeong, Min-Su Kang, Byung-Woo Jeon, Byung-Kook Choi, Yong-Kuk Kwon, So-Youn Yoon, Patrick J Blackall, Hee-Soo Lee, Suk-Chan Jung, Jae-Hong Kim
Twenty field isolates of Avibacterium paragallinarum were obtained from chickens in South Korea during 2011-2015. The isolates were identified by a HPG-2 PCR assay specific for A. paragallinarum and by biochemical tests. Growth requirements, Page serovars, carbohydrate fermentation patterns, and antimicrobial susceptibility were also examined. Most isolates (16/20) showed the typical requirement for nicotinamide adenine dinucleotide (NAD) and an enriched CO2 atmosphere for growth. One isolate needed increased levels of NAD and serum for good growth...
June 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28620817/effect-of-biosolid-hydrochar-on-toxicity-to-earthworms-and-brine-shrimp
#7
Tatiane Medeiros Melo, Michael Bottlinger, Elke Schulz, Wilson Mozena Leandro, Adelmo Menezes de Aguiar Filho, Yong Sik Ok, Jörg Rinklebe
The hydrothermal carbonization of sewage sludge has been studied as an alternative technique for the conversion of sewage sludge into value-added products, such as soil amendments. We tested the toxicity of biosolid hydrochar (Sewchar) to earthworms. Additionally, the toxicity of Sewchar process water filtrate with and without pH adjustment was assessed, using brine shrimps as a model organism. For a Sewchar application of 40 Mg ha(-1), the earthworms significantly preferred the side of the vessel with the reference soil (control) over side of the vessel with the Sewchar treatments...
June 15, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28620459/on-the-origin-of-nonequivalent-states-how-we-can-talk-about-preprints
#8
Cameron Neylon, Damian Pattinson, Geoffrey Bilder, Jennifer Lin
Increasingly, preprints are at the center of conversations across the research ecosystem. But disagreements remain about the role they play. Do they "count" for research assessment? Is it ok to post preprints in more than one place? In this paper, we argue that these discussions often conflate two separate issues, the history of the manuscript and the status granted it by different communities. In this paper, we propose a new model that distinguishes the characteristics of the object, its "state", from the subjective "standing" granted to it by different communities...
2017: F1000Research
https://www.readbyqxmd.com/read/28619245/the-risk-of-metachronous-neoplasia-on-surveillance-colonoscopy-in-young-patients-with-colorectal-neoplasia
#9
Hyun Gun Kim, Young-Seok Cho, Jae Myung Cha, Jeong Eun Shin, Kyeong Ok Kim, Hyo-Joon Yang, Hoon Sup Koo, Young-Eun Joo, Sun-Jin Boo
BACKGROUND AND AIMS: Few prior reports exist that address the appropriate colonoscopy surveillance interval for individuals <50 years old. We compared the risk of metachronous neoplasia between younger (20-49 years) and older (50-54 years) cohorts. METHODS: This multicenter retrospective cohort study compared the incidence of metachronous neoplasia in younger and older cohorts according to baseline risk stratification. Subjects were eligible if they underwent their first colonoscopy between June 2006 and May 2010, and had at least one or more surveillance colonoscopy up to June 2015...
June 12, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28617728/a-comparison-of-the-effects-of-orthokeratology-lens-medcall-lens-and-ordinary-frame-glasses-on-the-accommodative-response-in-myopic-children
#10
Xiaoxia Han, Dongjun Xu, Weizhong Ge, Zhi Wang, Xiaodong Li, Weihua Liu
OBJECTIVE: To observe and compare changes in accommodative response between myopic children wearing ordinary frame glasses (OFG), Mouldway orthokeratology lenses (M-OK), and medcall lenses (ML). METHODS: A total of 240 myopic children were divided into three groups: OFG [n=90]; M-OK [n=90]; and ML [n=60]). The diopter, accommodative lag, and binocular accommodative facility before wearing glasses (T0) and 1-year after wearing glasses (T1) were compared among the three groups...
June 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28617351/an-extended-kriging-method-to-interpolate-near-surface-soil-moisture-data-measured-by-wireless-sensor-networks
#11
Jialin Zhang, Xiuhong Li, Rongjin Yang, Qiang Liu, Long Zhao, Baocheng Dou
In the practice of interpolating near-surface soil moisture measured by a wireless sensor network (WSN) grid, traditional Kriging methods with auxiliary variables, such as Co-kriging and Kriging with external drift (KED), cannot achieve satisfactory results because of the heterogeneity of soil moisture and its low correlation with the auxiliary variables. This study developed an Extended Kriging method to interpolate with the aid of remote sensing images. The underlying idea is to extend the traditional Kriging by introducing spectral variables, and operating on spatial and spectral combined space...
June 15, 2017: Sensors
https://www.readbyqxmd.com/read/28617322/chondroitin-sulfate-rich-extract-of-skate-cartilage-attenuates-lipopolysaccharide-induced-liver-damage-in-mice
#12
Yeong Ok Song, Mijeong Kim, Minji Woo, Jang-Mi Baek, Keon-Hee Kang, Sang-Ho Kim, Seong-Soo Roh, Chan Hum Park, Kap-Seop Jeong, Jeong-Sook Noh
The protective effects of a chondroitin sulfate-rich extract (CSE) from skate cartilage against lipopolysaccharide (LPS)-induced hepatic damage were investigated, and its mechanism of action was compared with that of chondroitin sulfate (CS) from shark cartilage. ICR mice were orally administrated 200 mg/kg body weight (BW) of CS or 400 mg/kg BW of CSE for 3 consecutive days, followed by a one-time intraperitoneal injection of LPS (20 mg/kg BW). The experimental groups were vehicle treatment without LPS injection (NC group), vehicle treatment with LPS injection (LPS group), CS pretreatment with LPS injection (CS group), and CSE pretreatment with LPS injection (CSE group)...
June 15, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28616301/successful-thoracoscopic-resection-of-a-large-mediastinal-angiomyolipoma
#13
Young Du Kim, Seong Cheol Jeong, Hyun Woo Jeon, Sun Wha Song, Ok Ran Shin, Si Young Choi
An angiomyolipoma (AML) is a benign mesenchymal tumor characterized by proliferation of mature vessels, smooth muscle, and adipose tissue. AMLs most commonly occur in the kidney but have been reported in a variety of extrarenal sites. Mediastinal AMLs are extremely rare. We herein present a case of a large AML of the mediastinum that was successfully treated by thoracoscopic resection.
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28615248/the-transcriptome-of-the-didelphis-virginiana-opossum-kidney-ok-proximal-tubule-cell-line
#14
Megan L Eshbach, Rahil Sethi, Raghunandan Avula, Janette Lamb, Deborah J Hollingshead, David N Finegold, Joseph Locker, Uma R Chandran, Ora A Weisz
The OK cell line derived from kidney of a female opossum Didelphis virginiana has proven to be a useful model in which to investigate the unique regulation of ion transport and membrane trafficking mechanisms in the proximal tubule (PT). Sequence data and comparison of the transcriptome of this cell line to eutherian mammal PTs would further broaden the utility of this culture model. However, genomic sequence for Didelphis virginiana is not available and although a draft genome sequence for the opossum Monodelphis domestica (sequenced in 2012 by the Broad Institute) exists, transcripts sequenced from both species show significant divergence...
June 14, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28615126/unveiling-the-participation-of-avian-kinin-ornithokinin-and-its-receptors-in-the-chicken-inflammatory-response
#15
Rodrigo Guabiraba, Damien Garrido, Geoffrey Bailleul, Angélina Trotereau, Mélanie Pinaud, Anne-Christine Lalmanach, Nathalie K Chanteloup, Catherine Schouler
Vasoactive peptides are key early mediators of inflammation released through activation of different enzymatic systems. The mammalian kinin-kallikrein (K-KLK) system produces bradykinin (BK) through proteolytic cleavage of a kininogen precursor by enzymes named kallikreins. BK acts through specific ubiquitous G-protein coupled receptors (B1R and B2R) to participate in physiological processes and inflammatory responses, such as activation of mononuclear phagocytes. In chickens, the BK-like nonapeptide ornithokinin (OK) has been shown to promote intracellular calcium increase in embryonic fibroblasts and to be vasodilatory in vivo...
June 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28614913/the-fungal-metabolite-brefeldin-a-inhibits-dvl2-plk1-dependent-primary-cilium-disassembly
#16
Uijeong Lee, Sun-Ok Kim, Jeong-Ah Hwang, Jae-Hyuk Jang, Sangkeun Son, In-Ja Ryoo, Jong Seog Ahn, Bo Yeon Kim, Kyung Ho Lee
The primary cilium is a non-motile microtubule-based organelle that protrudes from the surface of most human cells and works as a cellular antenna to accept extracellular signals. Primary cilia assemble from the basal body during the resting stage (G0 phase) and simultaneously disassemble with cell cycle re-entry. Defective control of assembly or disassembly causes diverse human diseases including ciliopathy and cancer. To identify the effective compounds for studying primary cilium disassembly, we have screened 297 natural compounds and identified 18 and 17 primary cilium assembly and disassembly inhibitors, respectively...
June 14, 2017: Molecules and Cells
https://www.readbyqxmd.com/read/28614815/a-case-of-pulmonary-langerhans-cell-sarcoma-simultaneously-diagnosed-with-cutaneous-langerhans-cell-histiocytosis-studied-by-whole-exome-sequencing
#17
Si-Wook Kim, Moon Ki Choi, Hye Sook Han, Hyojin Song, Youngil Koh, Seung-Myoung Son, Ok-Jun Lee, Ji Yeoun Lee, Ki Man Lee, Ki Hyeong Lee, Jihyun Kwon
Langerhans cell histiocytosis (LCH) and Langerhans cell sarcoma (LCS) are clonal proliferations of Langerhans-type cells. Unlike in LCH, the pathophysiology and clinical course of LCS are unclear due to its rarity. Here, we report the case of a 73-year-old male patient who was diagnosed with cutaneous LCH and pulmonary LCS at the same time. Pathological review of these 2 tumors revealed similar immunohistochemical findings. However, the tumor cells in LCS had more aggressive cytological features than those in LCH...
June 15, 2017: Acta Haematologica
https://www.readbyqxmd.com/read/28610164/a-new-and-five-rare-bdelloids-from-korea
#18
Min Ok Song, Chang-Ho Lee
A taxonomic study on bdelloid rotifers collected from various terrestrial habitats at six different locations in Korea yielded 12 new Korean records and a new species, Philodina koreana n. sp. Among the 12 new Korean records, eight species and two subspecies are new to Asia. These new Asian records include five rare species with poorly known distributions. Philodina childi Milne and P. scabra Milne were rediscovered in Korea almost 100 years after the original descriptions from South Africa. Our study is the first to report Habrotrocha longicalcarata Bērzinš outside its type locality...
March 13, 2017: Zootaxa
https://www.readbyqxmd.com/read/28608665/comparison-of-plasma-concentrations-of-posaconazole-with-the-oral-suspension-and-tablet-in-korean-patients-with-hematologic-malignancy
#19
Hyeon Jeong Suh, Inho Kim, Joo Youn Cho, Sang In Park, Seo Hyun Yoon, Jeong Ok Lee, Youngil Koh, Kyoung Ho Song, Pyoeng Gyun Choe, Kyung Sang Yu, Eu Suk Kim, Hong Bin Kim, Soo Mee Bang, Nam Joong Kim, Sang Hoon Song, Wan Beom Park, Myoung Don Oh
The posaconazole tablet formulation was developed to have improved bioavailability compared to the oral suspension. Here, we compared posaconazole plasma concentration (PPC) with the posaconazole oral suspension versus the tablet in Korean patients undergoing remission induction chemotherapy for hematologic malignancies. PPC was measured at 3, 8, and 15 days of treatment with the oral suspension (174 patients) or the tablet (40 patients). At all time-points, mean PPC was significantly higher with the tablet compared to the oral suspension...
June 9, 2017: Infection & Chemotherapy
https://www.readbyqxmd.com/read/28608658/massilia-varians-isolated-from-a-clinical-specimen
#20
Jooyoung Cho, Keon Han Kim, Jung Ok Kim, Jun Sung Hong, Seok Hoon Jeong, Kyungwon Lee
We report a case of Massilia varians isolated from a deep finger wound following orthopedic surgery on an immunocompetent patient. The bacterium was identified by 16S rDNA sequence analysis. This is the first case of M. varians isolated from a clinical specimen since the first report in 2008.
May 24, 2017: Infection & Chemotherapy
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