keyword
MENU ▼
Read by QxMD icon Read
search

SEBs

keyword
https://www.readbyqxmd.com/read/29345264/giant-spontaneous-exchange-bias-obtained-by-tuning-magnetic-compensation-in-samarium-ferrite-single-crystals
#1
Xiao-Xiong Wang, Shang Gao, Xu Yan, Qiang Li, Jun-Cheng Zhang, Yun-Ze Long, Ke-Qing Ruan, Xiao-Guang Li
Spontaneous exchange bias (SEB) under zero field cooling (ZFC) has recently attracted lots of attention due to its underlying physics and potential applications. Here we report the giant SEB (GSEB) of SmFeO3 single crystals by tuning magnetic compensation by temperature, which is rather convenient. A SEB field of up to 1 T at 3.9 K after ZFC (-1.4 T at 3.9 K after field cooling) was obtained. The SEB shows reciprocal relationship with remnant magnetization.
January 18, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29319509/prevalence-influencing-factors-antibiotic-resistance-toxin-and-molecular-characteristics-of-staphylococcus-aureus-and-mrsa-nasal-carriage-among-diabetic-population-in-the-united-states-2001-2004
#2
Jialing Lin, Yang Peng, Chan Bai, Ting Zhang, Haoqu Zheng, Xiaojie Wang, Jiaping Ye, Xiaohua Ye, Ying Li, Zhenjiang Yao
Diabetic population were reported more likely to suffer carriage and infection with Staphylococcus aureus (S. aureus) and methicillin-resistant Staphylococcus aureus (MRSA) than non-diabetic population. We aim to elucidate the prevalence and characteristics of S. aureus and MRSA nasal carriage among diabetic population in the United States National Health and Nutrition Examination Survey, 2001-2004. Univariate analyses were conducted using Chi-square test, Fisher's exact probability test or student t test, as appropriate...
December 4, 2017: Polish Journal of Microbiology
https://www.readbyqxmd.com/read/29315616/in-chronic-spontaneous-urticaria-ige-against-staphylococcal-enterotoxins-is-common-and-functional
#3
S Altrichter, T Hawro, M Liedtke, G Holtappels, C Bachert, P S Skov, M Maurer
BACKGROUND: Chronic spontaneous urticaria (CSU) is a frequent disorder with recurrent itchy wheals and/or angioedema. Despite the known effectiveness of omalizumab therapy, the relevant IgE antigens are largely unknown. Recently, increased rates of elevated levels of IgE towards Staphylococcus aureus enterotoxins (SEs) were described in CSU. AIM: To assess the prevalence and functional relevance of IgE to SEs in CSU. METHOD: We investigated serum levels of IgE against SEs in 49 CSU patients and in 15 CSU patients additional specific IgE to SE components and basophil histamine release (BHR)...
January 9, 2018: Allergy
https://www.readbyqxmd.com/read/29301344/computational-modeling-of-the-staphylococcal-enterotoxins-and-its-interaction-with-natural-antitoxin-compounds
#4
Mahantesh Kurjogi, Praveen Satapute, Sudisha Jogaiah, Mostafa Abdelrahman, Jayasimha Rayalu Daddam, Venkatesh Ramu, Lam-Son Phan Tran
Staphylococcus aureus is an opportunistic bacterium that produces various types of toxins, resulting in serious food poisoning. Staphylococcal enterotoxins (SEs) are heat-stable and resistant to hydrolysis by digestive enzymes, representing a potential hazard for consumers worldwide. In the present study, we used amino-acid sequences encoding SEA and SEB-like to identify their respective template structure and build the three-dimensional (3-D) models using homology modeling method. Two natural compounds, Betulin and 28-Norolean-12-en-3-one, were selected for docking study on the basis of the criteria that they satisfied the Lipinski's Rule-of-Five...
January 3, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29275615/-changes-of-platelet-rheological-behavior-and-the-interventional-effects-of-ulinastatin-in-rats-with-high-voltage-electrical-burns
#5
Q F Zhang, Y Li, J K Feng, Y F Xu, L L Tu
Objective: To explore the influence of high-voltage electrical burns on the number of platelet aggregation, β-thromboglobulin (β-TG) and platelet factor 4 (PF-4) and the interventional effects of ulinastatin in rats with high-voltage electrical burns. Methods: A total of 240 Sprague-Dawley rats were divided into sham injury (SI) group, simple electrical burn (SEB) group, normal saline (NS) group, and ulinastatin (UTI) group according to the random number table, with 60 rats in each group. The electrical current was applied to the outside proximal part of left forelimb of rats and exited from the outside proximal part of right hind limb of rats...
December 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/29259723/effects-of-ctla4-ig-on-human-monocytes
#6
Toshihiro Tono, Satoko Aihara, Takayuki Hoshiyama, Yoshiyuki Arinuma, Tatsuo Nagai, Shunsei Hirohata
Background: Abatacept, a CTLA4-Ig fusion protein attenuates T cell activation by inhibiting the CD80/86-CD28 costimulatory pathway that is required for the proper T cell activation and thus displays beneficial effects in the treatment of rheumatoid arthritis (RA). Although some studies have disclosed the in vitro effects of this biological agent on the immune-competent cells, the precise mechanisms of action in RA still remain unclear. The current studies were therefore undertaken to explore the effects of abatacept on monocytes in detail...
2017: Inflammation and Regeneration
https://www.readbyqxmd.com/read/29259216/cytokine-profiling-in-healthy-children-shows-association-of-age-with-cytokine-concentrations
#7
Marie-Luise Decker, Verena Gotta, Sven Wellmann, Nicole Ritz
Cytokine-based diagnostic assays are increasingly used in research and clinical practice. Assays developed for adults such as the interferon-gamma release assay for tuberculosis show inferior performance in children. Limited evidence suggests that release of cytokines is influenced by age but normal ranges of cytokines in children are lacking. Whole blood of healthy children (0-12 years) undergoing elective/diagnostic procedures was stimulated with SEB, PHA, Candida albicans for 24 hours or left unstimulated...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29247497/the-prevalence-of-antibody-responses-against-staphylococcus-aureus-antigens-in-patients-with-atopic-dermatitis-a-systematic-review-and-meta-analysis
#8
REVIEW
J de Wit, J E E Totté, F J M van Buchem, S G M A Pasmans
Staphylococcus (S.) aureus plays a role in the pathogenesis of atopic dermatitis (AD), possibly via the expression of various virulence antigens. An altered antibody response towards these antigens might contribute to inflammation. We aimed to provide an overview of the varying prevalences and odds of antibody responses against S. aureus antigens in AD patients. Data were systematically obtained from Embase, Medline, Web of Science, Scopus, Cochrane, PubMed and Google Scholar (up to February 12th 2016). We selected all original observational and experimental studies assessing anti-staphylococcal antibodies in serum of AD patients...
December 16, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/29245871/two-photon-interferences-of-nondegenerate-photon-pairs-from-doppler-broadened-atomic-ensemble
#9
Jiho Park, Heonoh Kim, Han Seb Moon
We report two-photon interference experiments performed with correlated photon pairs generated via spontaneous four-wave mixing in a Doppler-broadened atomic ensemble involving the 5S1/2-5P3/2-5D5/2 transition of 87Rb atoms. When two photons with different wavelengths are incident on a polarization-based Michelson interferometer, two kinds of two-photon superposition states, the frequency-entangled state and dichromatic path-entangled state depending on whether the two photons are in different paths or in the same path, are probabilistically generated within the interferometer arms...
December 11, 2017: Optics Express
https://www.readbyqxmd.com/read/29235991/imaging-of-monochromatic-beams-by-measuring-secondary-electron-bremsstrahlung-for-carbon-ion-therapy-using-a-pinhole-x-ray-camera
#10
Mitsutaka Yamaguchi, Yuto Nagao, Koki Ando, Seiichi Yamamoto, Makoto Sakai, Raj Kumar Parajuli, Kazuo Arakawa, Naoki Kawachi
A feasibility study on the imaging of monochromatic carbon-ion beams for carbon-ion therapy was performed. The evaluation was based on Monte Carlo simulations and beam-irradiation experiments, using a pinhole X-ray camera, which measured secondary electron bremsstrahlung (SEB). The simulation results indicated that the trajectories of the carbon-ion beams with injection energies of 278, 249 and 218 MeV/u in a water phantom, were clearly imaged by measuring the SEB with energies from 30 to 60 keV, using a pinhole camera...
December 13, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29232896/dietary-animal-plasma-proteins-improve-the-intestinal-immune-response-in-senescent-mice
#11
Lluïsa Miró, Alba Garcia-Just, Concepció Amat, Javier Polo, Miquel Moretó, Anna Pérez-Bosque
Increased life expectancy has promoted research on healthy aging. Aging is accompanied by increased non-specific immune activation (inflammaging) which favors the appearance of several disorders. Here, we study whether dietary supplementation with spray-dried animal plasma (SDP), which has been shown to reduce the activation of gut-associated lymphoid tissue (GALT) in rodents challenged by S. aureus enterotoxin B (SEB), and can also prevent the effects of aging on immune system homeostasis. We first characterized GALT in a mouse model of accelerated senescence (SAMP8) at different ages (compared to mice resistant to accelerated senescence; SAMR1)...
December 11, 2017: Nutrients
https://www.readbyqxmd.com/read/29209290/enterotoxigenicity-and-antimicrobial-resistance-of-staphylococcus-aureus-isolated-from-retail-food-in-china
#12
Wei Wang, Zulqarnain Baloch, Tao Jiang, Cunshan Zhang, Zixin Peng, Fengqin Li, Séamus Fanning, Aiguo Ma, Jin Xu
Staphylococcus aureus is one of the most common causes of zoonotic agent in the world, which are attributable to the contamination of food with enterotoxins. In this study, a total of 1,150 S. aureus isolates were cultured from 27,000 retail foods items from 203 cities of 24 provinces in China in 2015 and were test for antimicrobial susceptibility. Additionally, the role of the genes responsible for the staphylococcal enterotoxins (SEA to SEE), methicillin resistance (mecA) and the toxigenic capabilities were also assessed...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29208716/direct-measurements-of-meltwater-runoff-on-the-greenland-ice-sheet-surface
#13
Laurence C Smith, Kang Yang, Lincoln H Pitcher, Brandon T Overstreet, Vena W Chu, Åsa K Rennermalm, Jonathan C Ryan, Matthew G Cooper, Colin J Gleason, Marco Tedesco, Jeyavinoth Jeyaratnam, Dirk van As, Michiel R van den Broeke, Willem Jan van de Berg, Brice Noël, Peter L Langen, Richard I Cullather, Bin Zhao, Michael J Willis, Alun Hubbard, Jason E Box, Brittany A Jenner, Alberto E Behar
Meltwater runoff from the Greenland ice sheet surface influences surface mass balance (SMB), ice dynamics, and global sea level rise, but is estimated with climate models and thus difficult to validate. We present a way to measure ice surface runoff directly, from hourly in situ supraglacial river discharge measurements and simultaneous high-resolution satellite/drone remote sensing of upstream fluvial catchment area. A first 72-h trial for a 63.1-km2 moulin-terminating internally drained catchment (IDC) on Greenland's midelevation (1,207-1,381 m above sea level) ablation zone is compared with melt and runoff simulations from HIRHAM5, MAR3...
December 5, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29178873/prevalence-and-molecular-characterization-of-staphylococcus-aureus-isolated-from-goats-in-chongqing-china
#14
Zuoyong Zhou, Mengsi Zhang, Hexian Li, Haoyue Yang, Xiaoxia Li, Xinyue Song, Zhiying Wang
BACKGROUND: Staphylococcus aureus is an important zoonotic pathogen which not only causes significant economic loss in livestock production but also poses a potential threat to public health. Compared with bovine and swine, the information on the colonization of S. aureus in goats is very limited. To understand the prevalence and characteristics of S. aureus in goats, we used the nasal swabs collected from apparently healthy goats to isolate S. aureus, and tested their antimicrobial susceptibility, virulence gene carrying levels, and multilocus sequence typing (MLST)...
November 25, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29170042/anti-cancer-effects-of-staphylococcal-enterotoxin-type-b-on-u266-cells-co-cultured-with-mesenchymal-stem-cells
#15
Mostafa Ejtehadifar, Raheleh Halabian, Abbas Ali Imani Fooladi, Ali Ghazavi, Ghasem Mosayebi
BACKGROUND: Malignant plasma cells are responsible for Multiple Myeloma (MM). Myeloma Cells (MCs) are located in Bone Marrow (BM) and are in contact with stromal cells. The BM-derived Mesenchymal Stem Cells (BM-MSCs) affect MCs biology through different mechanisms. Currently, Staphylococcal Enterotoxin B (SEB) has been introduced as an anti-tumor agent that is able to kill cancer cells. The present study examined the effects of SEB on MCs and MSCs as an anti-tumor substance. METHODS: U266 cells co-cultured on BM-MSCs and treated with SEB and cell viability was analyzed by MTT assay and flow cytometry...
November 20, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29162920/the-corepressor-ncor1-regulates-the-survival-of-single-positive-thymocytes
#16
Lena Müller, Daniela Hainberger, Valentina Stolz, Patricia Hamminger, Hammad Hassan, Teresa Preglej, Nicole Boucheron, Shinya Sakaguchi, G Jan Wiegers, Andreas Villunger, Johan Auwerx, Wilfried Ellmeier
Nuclear receptor corepressor 1 (NCOR1) is a transcriptional regulator bridging repressive chromatin modifying enzymes with transcription factors. NCOR1 regulates many biological processes, however its role in T cells is not known. Here we show that Cd4-Cre-mediated deletion of NCOR1 (NCOR1 cKO(Cd4)) resulted in a reduction of peripheral T cell numbers due to a decrease in single-positive (SP) thymocytes. In contrast, double-positive (DP) thymocyte numbers were not affected in the absence of NCOR1. The reduction in SP cells was due to diminished survival of NCOR1-null postselection TCRβ(hi)CD69(+) and mature TCRβ(hi)CD69(-) thymocytes...
November 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29143155/language-and-social-emotional-and-behavioural-wellbeing-from-4-to-7%C3%A2-years-a-community-based-study
#17
Penny Levickis, Emma Sciberras, Cristina McKean, Laura Conway, Angela Pezic, Fiona K Mensah, Edith L Bavin, Lesley Bretherton, Patricia Eadie, Margot Prior, Sheena Reilly
Language disorder (LD) and social-emotional and behavioural (SEB) difficulties are common childhood problems that often co-occur. While there is clear evidence of these associations from clinical samples, less is known about community samples. This paper examines these associations in children aged 4-7 years from a community-based longitudinal study. 771 families provided questionnaire and assessment data at 4, 5 and 7 years. Parent-reported SEB difficulties were measured at each point (SDQ). Child language was directly assessed at 4 (CELF-P2), 5 and 7 years (CELF-4)...
November 15, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/29138415/determining-phase-coherence-time-of-stored-light-in-warm-atomic-vapor
#18
Taek Jeong, Jumi Park, Han Seb Moon
In quantum memory based on an atomic medium, we may have a question about whether all information on the stored light is preserved. In particular, the phase coherence between the stored and retrieval light pulses is very interesting, because it can indicate the relationship between the coherence time and storage time of the light. In this paper, we investigate the phase coherence time of light stored in a warm atomic vapor, by examining the beat-note interference between the retrieval light pulse and a reference light beam optically delayed using an optical fiber...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29131072/il-21-is-increased-in-nasal-polyposis-and-after-stimulation-with-staphylococcus-aureus-enterotoxin-b
#19
Lien Calus, Lara Derycke, Melissa Dullaers, Thibaut Van Zele, Natalie De Ruyck, Claudina Pérez-Novo, Gabriele Holtappels, Geert De Vos, Bart N Lambrecht, Claus Bachert, Philippe Gevaert
BACKGROUND: Chronic rhinosinusitis with nasal polyposis (CRSwNP) is an inflammatory disease associated with lymphoid aggregates and local IgE production related to Staphylococcus aureus enterotoxins. T-follicular helper cells and their effector cytokine interleukin (IL)-21 play an important role in germinal center proliferation. METHODS: IL-21 was determined on the mRNA level by qPCR in nasal tissue of 3 groups of patients: control (n = 17), chronic rhinosinusitis without nasal polyposis (CRSsNP; n = 23), and CRSwNP (n = 35)...
November 9, 2017: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/29112896/staphylococcal-food-poisoning-caused-by-staphylococcus-argenteus-harboring-staphylococcal-enterotoxin-genes
#20
Yuki Wakabayashi, Kaoru Umeda, Shinya Yonogi, Hiromi Nakamura, Kaori Yamamoto, Yuko Kumeda, Kentaro Kawatsu
Staphylococcal food poisoning (SFP) is caused by staphylococcal enterotoxins (SEs) preformed in food materials. SE genes are encoded on mobile genetic elements and are widely found across Staphylococcus species including S. argenteus, although most SFP cases are caused by S. aureus. S. argenteus, recently discriminated from S. aureus as a novel species, are non-pigmented staphylococci phenotypically related to S. aureus. In 2014 and 2015, two independent food poisoning cases occurred in Osaka, Japan, in which non-pigmented staphylococci were predominantly isolated...
October 22, 2017: International Journal of Food Microbiology
keyword
keyword
64664
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"