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https://www.readbyqxmd.com/read/28511732/outbreak-of-diarrhoea-among-participants-of-a-triathlon-and-a-duathlon-on-12-july-2015-in-utrecht-the-netherlands
#1
S Parkkali, R Joosten, E Fanoy, R Pijnacker, J VAN Beek, D Brandwagt, W VAN Pelt
On 12 July 2015, a triathlon competition with 900 participants took place in Utrecht, the Netherlands. An outbreak investigation was initiated after 56 participants reported health complaints. An online questionnaire was sent to 700 participants. Stool specimens from six participants and four water specimens were collected from the swimming location. A total of 239 participants completed the questionnaire (response rate: 34%), 73 (31%) of them met the case definition for acute gastrointestinal illness (AGI)...
May 17, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28511093/hypoxia-based-strategies-for-regenerative-dentistry-views-from-the-different-dental-fields
#2
REVIEW
Anna Sonja Müller, Klara Janjić, Bledar Lilaj, Michael Edelmayer, Hermann Agis
The understanding of the cell biological processes underlying development and regeneration of oral tissues leads to novel regenerative approaches. Over the past years, knowledge on key roles of the hypoxia-based response has become more profound. Based on these findings, novel regenerative approaches for dentistry are emerging, which target cellular oxygen sensors. These approaches include hypoxia pre-conditioning and pharmacologically simulated hypoxia. The increase in studies on hypoxia and hypoxia-based strategies in regenerative dentistry highlights the growing attention to hypoxia's role in regeneration and its underlying biology, as well as its application in a therapeutic setting...
April 26, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28504967/alpha-glucosidase-inhibitors-and-risk-of-cancer-in-patients-with-diabetes-mellitus-a-systematic-review-and-meta-analysis
#3
Yiming Zhao, Yongjian Wang, Hanyu Lou, Lizhen Shan
Several studies have shown that anti-diabetic medications may modify the risk of cancer. We performed a systematic review and meta-analysis to evaluate the effect of alpha-glucosidase inhibitors (AGIs) on the risk of cancer in patients with diabetes mellitus. We conducted a systematic search of Medline, EMBASE, and Web of Science databases, up to September 30, 2016. Random-effects model was used to estimate the summary odds ratios (ORs) with 95% CI. Twenty-five studies (14 cohort, 7 case-control, and 4 randomized controlled trials) involving 1,285,433 patients with diabetes were included...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28490316/incidence-and-comparison-of-retrospective-and-prospective-data-on-respiratory-and-gastrointestinal-infections-in-german-households
#4
Kristin Maria Schlinkmann, Abhishek Bakuli, Rafael Mikolajczyk
BACKGROUND: Acute respiratory infections (ARI) and acute gastrointestinal infections (AGI) are the most common childhood infections, and corresponding data can either be collected prospectively or retrospectively. The aim of this study was to estimate the incidence of respiratory and gastrointestinal episodes in German households with children attending day care and to compare results of prospective and retrospective data collection. METHODS: We conducted a 4 months prospective cohort study in the winter period 2014/2015 and recruited parents of children aged 0-6 years in 75 day care centers in Braunschweig, Lower Saxony, Germany...
May 11, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28481063/high-photon-to-current-conversion-in-solar-cells-based-on-light-absorbing-silver-bismuth-iodide-with-space-group-r%C3%A2-3m-crystal-structure
#5
Huimin Zhu, Mingao Pan, Malin B Johansson, Erik Johansson
In this report a lead-free silver-bismuth-iodide (AgI:BiI3) with a crystal structure with space group R3m is investigated for use in solar cells. Devices based on the silver-bismuth-iodide deposited from solution on top of TiO2, and the conducting polymer P3HT as a hole transport layer, are prepared and the photovoltaic performance is very promising with a power conversion efficiency over 2 %, which is higher than the performance of previously reported bismuth-halide materials for solar cells. Photocurrent generation is observed between 350 and 700 nm, and the maximum external quantum efficiency is around 45 %...
May 8, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28477161/simultaneous-measurements-of-arsenic-and-sulfide-using-diffusive-gradients-in-thin-films-technique-dgt
#6
Lv Xu, Qin Sun, Shiming Ding, Mengdan Gong, Chaosheng Zhang
Diffusive gradients in thin films technique (DGT) is a dynamically passive sampling technique which has been applied increasingly to the environmental monitoring field. In the preliminary period, the DGT with zirconium hydroxide-silver iodide as the binding phase (ZrO-AgI DGT) has been developed for the determination of sulfide (S(II)). On this basis, this paper developed its determination method for inorganic arsenite (As(III)) to further realize the simultaneous and high-resolution measurements of labile inorganic As and S(II) in sediments...
May 5, 2017: Environmental Geochemistry and Health
https://www.readbyqxmd.com/read/28463245/three-dimensional-image-reconstruction-of-macroscopic-objects-from-a-single-digital-hologram-using-stereo-disparity
#7
Baturay Özgürün, Duygu Önal Tayyar, Kaan Özer Agiş, Meriç Özcan
We present depth extraction of macroscopic three-dimensional (3D) objects from a single digital hologram using stereo disparity. The method does not require the phase information of the hologram but two perspectives of the scene, which are easily obtained by dividing the hologram into two parts (two apertures) before the reconstruction. Variation of the hologram division is countless since each piece of a single hologram contains all the information regarding the scene; therefore, stereo disparity can be calculated along any arbitrary direction...
May 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/28443627/multifunctionality-of-silver-closo-boranes
#8
Mark Paskevicius, Bjarne R S Hansen, Mathias Jørgensen, Bo Richter, Torben R Jensen
Silver compounds share a rich history in technical applications including photography, catalysis, photocatalysis, cloud seeding and as antimicrobial agents. Here we present a class of silver compounds (Ag2B10H10 and Ag2B12H12) that are semiconductors with a bandgap at 2.3 eV in the green visible light spectrum. The silver boranes have extremely high ion conductivity and dynamic-anion facilitated Ag(+) migration is suggested based on the structural model. The ion conductivity is enhanced more than two orders of magnitude at room temperature (up to 3...
April 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28435684/comparison-of-the-clinical-characteristics-and-prognosis-of-primary-versus-secondary-acute-gastrointestinal-injury-in-critically-ill-patients
#9
Dong Zhang, Rao Fu, Yanhua Li, Hongyan Li, Yuting Li, Hongxiang Li
BACKGROUND: This prospective study compared clinical characteristics and prognosis between primary (P) and secondary (S) acute gastrointestinal injury (AGI) (P-AGI)/(S-AGI) in critically ill patients. METHODS: This was a prospective, single-center observational study. Patients were included if they had been hospitalized for at least 72 h before the AGI diagnosis. Patients were classified according to severity of gastrointestinal dysfunction, while P-AGI or S-AGI were defined according to whether the gastrointestinal system was directly or indirectly involved...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28419698/collagen-barrier-membranes-do-not-adsorb-hypoxia-mimetic-activity-activity-of-gingival-fibroblasts-cultured-directly-on-collagen-barrier-membranes-loaded-with-hypoxia-mimetic-agents
#10
Diana Al-Habbal, Klara Janjić, Michael Edelmayer, Andreas Moritz, Hermann Agis
Hypoxia-based strategies for applications in oral surgery and periodontology have been proposed where collagen barrier membranes (CBM) are loaded with hypoxia mimetic agents (HMA) to induce a pro-angiogenic response. While it was found that CBM release HMA, it remained unclear if CBM adsorb HMA activity. Here we evaluated the response of oral cells cultured on CBM, supplemented with the HMA dimethyloxalylglycine (DMOG), desferrioxamine (DFO), and l-mimosine (l-MIM). Gingival fibroblasts (GF) were cultured on unwashed CBM as well as on CBM that had been washed with serum-free medium for 48 hours...
April 18, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28404222/the-effect-of-different-extraction-techniques-on-property-and-bioactivity-of-polysaccharides-from-dioscorea-hemsleyi
#11
Chengcheng Zhao, Xia Li, Jing Miao, Songsong Jing, Xuejiao Li, Luqi Huang, Wenyuan Gao
The rhizoma of Dioscorea hemsleyi (DH) has been used as a treatment of diabetes in China for hundreds of years. Polysaccharides in DH were extracted by using ultrasonic-assisted extraction (UAE), cold water extraction (CWE), warm water extraction (WWE) and hot water extraction (HWE), separately. Then the different characterizations of four DH polysaccharide (DHP) samples were analyzed by high-performance liquid chromatography (HPLC), high-performance Gel permeation chromatography (HGPC), ultraviolet-visible spectroscopy(UV), fourier transform-infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM)...
April 9, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28382954/early-traditional-chinese-medicine-bundle-therapy-for-the-prevention-of-sepsis-acute-gastrointestinal-injury-in-elderly-patients-with-severe-sepsis
#12
Yifei Wang, Yunhua Zhang, Ronglin Jiang
This study aimed to study the effect of early traditional Chinese medicine bundle therapy on the prevention of sepsis-associated acute gastrointestinal injury (AGI). This was a multicenter, prospective, observational, non-randomized cohort study of 296 consecutive patients with severe sepsis during 2013/3 and 2014/11; 150 patients received standard treatments (controls) and 146 received traditional Chinese medicine bundle therapy (intervention group) (herbal decoction gavage based on syndrome differentiation, Chinese acupuncture, application of mirabilite, and defecation mixture)...
April 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28376673/effect-of-prolyl-hydroxylase-inhibitor-loaded-collagen-barrier-membranes-on-osteoclastogenesis-and-osteoblastogenesis
#13
Michael Edelmayer, Diana Al-Habbal, Manuela Pensch, Klara Janjić, Hermann Agis
Prolyl hydroxylase inhibitors induce a proangiogenic response and are therefore proposed to optimize regenerative approaches in periodontics and oral surgery. Here the effect of the prolyl hydroxylase inhibitors dimethyloxalylglycine and deferoxamine, released from collagen barrier membranes, on osteoclastogenesis and osteoblastogenesis was evaluated. Collagen barrier membranes were loaded with dimethyloxalylglycine and deferoxamine. Release studies were performed and supernatants were taken after 1, 3, 6, 24, and 48 h...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28369101/risk-factors-for-gastroenteritis-associated-with-canal-swimming-in-two-cities-in-the-netherlands-during-the-summer-of-2015-a-prospective-study
#14
Rosa Joosten, Gerard Sonder, Saara Parkkali, Diederik Brandwagt, Ewout Fanoy, Lapo Mughini-Gras, Willemijn Lodder, Erik Ruland, Evelien Siedenburg, Suzanne Kliffen, Wilfrid van Pelt
Urban canal swimming events are popular in the Netherlands. In 2015, two city canal swimming events took place, in Utrecht (Utrecht Singel Swim, USS) and in Amsterdam (Amsterdam City Swim, ACS). This prospective study characterizes the health risks associated with swimming in urban waters. Online questionnaires were sent to 160 (USS) and 2,692 (ACS) participants, with relatives of participants who did not swim completing the questionnaire as a control. Swimming water specimens and stool specimens of diarrheic participants in the ACS group were analysed...
2017: PloS One
https://www.readbyqxmd.com/read/28365209/special-commentary-early-clinical-development-of-cell-replacement-therapy-considerations-for-the-national-eye-institute-audacious-goals-initiative
#15
REVIEW
Leonard A Levin, Joan W Miller, Donald J Zack, Martin Friedlander, Lois E H Smith
The National Eye Institute launched the Audacious Goals Initiative (AGI) in 2013 with the aim "to restore vision through the regeneration of neurons and neural connections in the eye and visual system." An AGI Town Hall held at the Association for Research in Vision and Ophthalmology Annual Meeting in 2016 brought together basic, translational, and clinical scientists to address the clinical implications of the AGI, with a particular emphasis on diseases amenable to regenerative medicine and strategies to deal with barriers to progess...
March 29, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28362369/monovalent-cation-doping-of-ch3nh3pbi3-for-efficient-perovskite-solar-cells
#16
Mojtaba Abdi-Jalebi, M Ibrahim Dar, Aditya Sadhanala, Satyaprasad P Senanayak, Michael Grätzel, Richard H Friend
Here, we demonstrate the incorporation of monovalent cation additives into CH3NH3PbI3 perovskite in order to adjust the optical, excitonic, and electrical properties. The possibility of doping was investigated by adding monovalent cation halides with similar ionic radii to Pb(2+), including Cu(+), Na(+), and Ag(+). A shift in the Fermi level and a remarkable decrease of sub-bandgap optical absorption, along with a lower energetic disorder in the perovskite, was achieved. An order-of-magnitude enhancement in the bulk hole mobility and a significant reduction of transport activation energy within an additive-based perovskite device was attained...
March 19, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28356059/association-between-acute-gastrointestinal-injury-and-biomarkers-of-intestinal-barrier-function-in-critically-ill-patients
#17
Hongxiang Li, Ying Chen, Feifei Huo, Yushan Wang, Dong Zhang
BACKGROUND: To assess the associations of biomarkers of intestinal barrier function and other clinical variables with acute gastrointestinal injury (AGI) grade, and of these clinical variables with mortality in critically ill patients. METHODS: This was a single-center, observational, prospective study. Patients were included if they were diagnosed with AGI and underwent tests for the measurement of plasma levels of intestinal fatty acid-binding protein (i-FABP), D-lactate (D-la), and lipopolysaccharide...
March 29, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28355949/differences-in-the-suppression-of-distortion-product-otoacoustic-emissions-by-contralateral-white-noise-between-patients-with-acute-or-chronic-tinnitus
#18
Maria Riga, Agis Komis, Pavlos Marangoudakis, Stefanos Naxakis, Eleftherios Ferekidis, Dimitrios Kandiloros, Vasilios Danielides
OBJECTIVE: The mechanisms underlying the shift from acute tinnitus to chronic remain obscure. An association between tinnitus and medial olivocochlear bundle (MOCB) reflex dysfunction has been hypothesised by several studies. The differences between participants with acute and chronic tinnitus have not yet been investigated. DESIGN: Participants were examined with distortion product otoacoustic emissions (DPOAEs) suppression elicited by contralateral white noise...
March 30, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28350992/expression-of-circadian-core-clock-genes-in-fibroblasts-of-human-gingiva-and-periodontal-ligament-is-modulated-by-l-mimosine-and-hypoxia-in-monolayer-and-spheroid-cultures
#19
Klara Janjić, Christoph Kurzmann, Andreas Moritz, Hermann Agis
OBJECTIVE: The circadian clock is involved in a plethora of physiological processes including bone formation and tooth development. While expression of circadian core clock genes was observed in various tissues, their role in the periodontium is unclear. We hypothesized that periodontal cells express circadian core clock genes and that their levels are modulated by hypoxia mimetic agents and hypoxia. MATERIAL AND METHODS: Fibroblasts of human gingiva (GF) and periodontal ligament (PDLF) in monolayer and spheroid cultures were treated with the hypoxia mimetic agent L-Mimosine (L-MIM) or hypoxia...
July 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28346347/biosynthesis-of-%C3%AE-glucosidase-inhibitors-by-a-newly-isolated-bacterium-paenibacillus-sp-tku042-and-its-effect-on-reducing-plasma-glucose-in-a-mouse-model
#20
Van Bon Nguyen, Anh Dzung Nguyen, Yao-Haur Kuo, San-Lang Wang
Paenibacillus sp. TKU042, a bacterium isolated from Taiwanese soil, produced α-glucosidase inhibitors (aGIs) in the culture supernatant when commercial nutrient broth (NB) was used as the medium for fermentation. The supernatant of fermented NB (FNB) showed stronger inhibitory activities than acarbose, a commercial anti-diabetic drug. The IC50 and maximum α-glucosidase inhibitory activities (aGIA) of FNB and acarbose against α-glucosidase were 81 μg/mL, 92% and 1395 μg/mL, 63%, respectively. FNB was found to be strongly thermostable, retaining 95% of its relative activity, even after heating at 100 °C for 30 min...
March 25, 2017: International Journal of Molecular Sciences
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