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https://www.readbyqxmd.com/read/28222512/aqp4-association-with-amyloid-deposition-and-astrocyte-pathology-in-the-tg-arcswe-mouse-model-of-alzheimer-s-disease
#1
Jing Yang, Rui Zhang, Changhe Shi, Chengyuan Mao, Zhihua Yang, Zhenhe Suo, Reidun Torp, Yuming Xu
Amyloid-β deposition in senile plaques is one of the main pathological changes in Alzheimer's disease (AD). We previously reported that aquaporin-4 (AQP4) is redistributed within the astrocytes in cerebral amyloid angiopathy in the tg-ArcSwe mouse model of AD, suggesting that AQP4 may participate in amyloid-β deposition. However, the role of AQP4 in plaque formation is not currently clear. The objective of the current study was to explore the AQP4 distribution within plaques in the tg-ArcSwe mice in more depth by the combined application of immunofluorescence cytochemistry and immunogold electron microscopy...
February 10, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28222476/-positionpaper-on-telemonitoring-in-sleep-related-breathing-disorders
#2
W Randerath, M Bögel, C Franke, A Hellmann, B Jany, G Nilius, T Penzel, T Voshaar, A Wiater
The use of telemonitoring in the care of patients with Sleep-related Breathing Disorders (SBD) can enhance medical support significantly. Telemonitoring aims at helping physicians to detect therapy problems early and thus improve patients' therapy adherence. Diagnostics and therapy decisions in the telemonitoring process nevertheless remain the responsibility of sleep specialists. The selection of data monitored, their evaluation and resulting consequences fall to the physician, who makes decisions and prescribes therapy in consultation with the patient...
February 2017: Pneumologie
https://www.readbyqxmd.com/read/28222420/camalexin-induced-cell-membrane-scrambling-and-cell-shrinkage-in-human-erythrocytes
#3
Mustafa Almasry, Mohamed Jemaà, Morena Mischitelli, Florian Lang, Caterina Faggio
BACKGROUND/AIMS: The thaliana phytoalexin Camalexin has been proposed for the treatment of malignancy. Camalexin counteracts tumor growth in part by stimulation of suicidal death or apoptosis of tumor cells. Similar to apoptosis of nucleated cells, erythrocytes may enter suicidal death or eryptosis, which is characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface. Cellular mechanisms contributing to the complex machinery executing eryptosis include increase of cytosolic Ca2+ activity ([Ca2+]i), oxidative stress, ceramide, protein kinase C and caspases...
February 13, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28222391/a-clinically-applicable-non-invasive-method-to-quantitatively-assess-the-visco-hyperelastic-properties-of-human-heel-pad-implications-for-assessing-the-risk-of-mechanical-trauma
#4
Sara Behforootan, Panagiotis E Chatzistergos, Nachiappan Chockalingam, Roozbeh Naemi
INTRODUCTION: Pathological conditions such as diabetic foot and plantar heel pain are associated with changes in the mechanical properties of plantar soft tissue. However, the causes and implications of these changes are not yet fully understood. This is mainly because accurate assessment of the mechanical properties of plantar soft tissue in the clinic remains extremely challenging. PURPOSE: To develop a clinically viable non-invasive method of assessing the mechanical properties of the heel pad...
February 9, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28222390/epr-and-photophysical-characterization-of-six-bioactive-oxidovanadium-iv-complexes-in-the-conditions-of-in-vitro-cell-tests
#5
Marta Lovisari, Giorgio Volpi, Domenica Marabello, Silvano Cadamuro, Annamaria Deagostino, Eliano Diana, Alessandro Barge, Margherita Gallicchio, Valentina Boscaro, Elena Ghibaudi
A number of oxidovanadium(IV) complexes have been reported to display anticancer activity. A theranostic approach, based on the simultaneous observation of both the effect of oxidovanadium(IV) complexes on cell viability and the disclosure of their intracellular fate, is possible by using oxidovanadium(IV) complexes functionalized with fluorescent ligands. In the present study we accomplished the characterization of six oxidovanadium(IV) complexes in conditions close to those employed for in vitro administration...
February 13, 2017: Journal of Inorganic Biochemistry
https://www.readbyqxmd.com/read/28222374/diuron-causes-sinking-retardation-and-physiochemical-alteration-in-marine-diatoms-thalassiosira-pseudonana-and-skeletonema-marinoi-dohrnii-complex
#6
Mst Ruhina Margia Khanam, Yohei Shimasaki, Md Zahangir Hosain, Koki Mukai, Michito Tsuyama, Xuchun Qiu, Rumana Tasmin, Hiroshi Goto, Yuji Oshima
The present research investigated the effect of diuron on sinking rate and the physiochemical changes in two marine diatoms, Thalassiosira pseudonana (single-celled species) and Skeletonema marinoi-dohrnii complex (chain-forming species). The results revealed that the sinking rate of both diatoms exposed to diuron at a level of 50% effective concentration for growth (EC50) decreased significantly compared with the control. Photosynthetic performance (Fv/Fm and PIABS) of both diatoms also decreased significantly with diuron exposure...
February 10, 2017: Chemosphere
https://www.readbyqxmd.com/read/28222337/assessment-of-dental-plaque-coverage-by-quantitative-light-induced-fluorescence-qlf-in-domestic-short-haired-cats
#7
Zoe V Marshall-Jones, Corrin V Wallis, Judi M Allsopp, Alison Colyer, Ian J Davis, Lucy J Holcombe
Dietary means of reducing plaque and calculus deposits are frequently sought for the maintenance of oral health in cats and dogs. In the development of such products sensitive, reliable, reproducible methods of measuring plaque and calculus are key. The aim of this study was to assess Quantitative Light-induced Fluorescence (QLF™) for the detection of dental plaque coverage in cats compared to the modified Logan and Boyce technique. The techniques were utilised in a crossover study, which compared two diets for their effect on plaque deposition in a cohort of 24 adult cats...
February 10, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28222304/fabrication-of-novel-visible-light-driven-agi-g-c3n4-composites-with-enhanced-visible-light-photocatalytic-activity-for-diclofenac-degradation
#8
Wei Zhang, Li Zhou, Jun Shi, Huiping Deng
A visible-light-driven heterostructured AgI/g-C3N4 was prepared by a deposition-precipitation method. The composition, structure, morphology, and optical properties of the photocatalyst were characterized by Brunauer-Emmett-Teller method (BET), X-ray powder diffraction (XRD), Fourier transform-infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), transmission electron microscope (TEM), scanning electron microscope (SEM), UV-vis diffused reflectance spectroscopy (DRS), photoluminescence spectroscopy (PL), photocurrent, and electrochemical impedance spectroscopy (EIS), respectively...
February 14, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28222291/circadian-rhythms-the-price-of-electric-light
#9
Jonathan S Emens
A new study demonstrates that modern electric lighting has caused the near-24-hour biological clock to be set to a later time and that humans physiologically respond to seasonal changes in day length under conditions of natural light exposure.
February 20, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28222261/enhanced-release-of-molecules-upon-uv-light-irradiation-from-photoresponsive-hydrogels-prepared-from-bifunctional-azobenzene-and-four-arm-poly-ethylene-glycol
#10
Shiva Kumar Rastogi, Hailee E Anderson, Joseph Lamas, Scott L Barrett, Travis Cantu, Stefan Zauscher, William J Brittain, Tania Betancourt
Advances in biosensors and drug delivery depend on hydrogels that respond to external stimuli. In this work we de-scribe the preparation and characterization of photoresponsive hydrogels prepared by crosslinking of di-NHS ester of azobenzoic acid and four-armed, amine-terminated poly(ethylene glycol). The porous structure and composition of the hydrogels were confirmed by scanning electron microscopy and Fourier transform infrared (FTIR) spectroscopy. The reversible photoisomerization of the azobenzene-containing hydrogel crosslinkers in the gels was confirmed by ab-sorption spectroscopy...
February 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28222235/visual-appearance-of-a-virtual-upper-limb-modulates-the-temperature-of-the-real-hand-a-thermal-imaging-study-in-immersive-virtual-reality
#11
G Tieri, A Gioia, M Scandola, E F Pavone, S M Aglioti
To explore the link between Sense of Embodiment (SoE) over a virtual hand and physiological regulation of skin temperature, twenty-four healthy participants were immersed in virtual reality through a Head Mounted Display and had their real limb temperature recorded by means of a high-sensitivity infrared camera. Participants observed a virtual right upper limb (appearing either normally, or with the hand detached from the forearm) or limb-shaped non-corporeal control objects (continuous or discontinuous wooden blocks) from a first-person perspective...
February 21, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28222225/daylight-photodynamic-therapy-vs-conventional-photodynamic-therapy-as-skin-cancer-preventive-treatment-in-patients-with-face-and-scalp-cancerization-an-intra-individual-comparison-study
#12
Elena Sotiriou, Demetrios Ioannides, Fotini Vrani, Elizabeth Lazaridou, Efstratios Vakirlis, Aimilios Lallas, Zoe Apalla
BACKGROUND: Individuals with medical history of non-melanoma skin cancers (NMSCs) usually develop multiple and/or recurrent malignant lesions around the site of the primary neoplasm. The latter represents the clinical expression of the "field cancerization" theory; supporting the presence of multiple malignant clones of dysplastic keratinocytes over the entire epithelium that potentially can progress into clinical lesions. Taking into consideration that the burden of NMSCs on public health and health-care cost is high, adequate control of recurrences and management of field change is challenging...
February 21, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28222173/back-to-basics-the-effects-of-block-vs-interleaved-trial-administration-on-pro-and-anti-saccade-performance
#13
Liran Zeligman, Ari Z Zivotofsky
The pro and anti-saccade task (PAT) is a widely used tool in the study of overt and covert attention with promising potential role in neurocognitive and psychiatric assessment. However, specific PAT protocols can vary significantly between labs, potentially resulting in large variations in findings across studies. In light of recent calls towards a standardization of PAT the current study's objective was to systematically and purposely evaluate the effects of block vs. interleaved administration-a fundamental consideration-on PAT measures in a within subject design...
2017: PloS One
https://www.readbyqxmd.com/read/28222149/ultrasonographic-evaluation-of-urinary-tract-morbidity-in-school-aged-and-preschool-aged-children-infected-with-schistosoma-haematobium-and-its-evolution-after-praziquantel-treatment-a-randomized-controlled-trial
#14
Beatrice Barda, Jean T Coulibaly, Christoph Hatz, Jennifer Keiser
BACKGROUND: Schistosoma haematobium infections are responsible for significant urinary tract (UT) complications. Schistosomiasis control programs aim to reduce morbidity, yet the extent of morbidity in preschool-aged children and the impact of treatment on morbidity reduction are not well studied. METHODOLOGY: Our study was embedded in a randomized, placebo-controlled, single-blind trial in Côte d'Ivoire, which evaluated the efficacy and safety of three doses (20, 40 and 60 mg/kg) of praziquantel in school-aged (SAC) and preschool-aged (PSAC) children infected with S...
February 21, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28222111/a-meta-analysis-of-the-abscopal-effect-in-preclinical-models-is-the-biologically-effective-dose-a-relevant-physical-trigger
#15
Raffaella Marconi, Silvia Strolin, Gianluca Bossi, Lidia Strigari
BACKGROUND: Preclinical in vivo studies using small animals are considered crucial in translational cancer research and clinical implementation of novel treatments. This is of paramount relevance in radiobiology, especially for any technological developments permitted to deliver high doses in single or oligo-fractionated regimens, such as stereotactic ablative radiotherapy (SABR). In this context, clinical success in cancer treatment needs to be guaranteed, sparing normal tissue and preventing the potential spread of disease or local recurrence...
2017: PloS One
https://www.readbyqxmd.com/read/28222079/establishing-priorities-for-oncology-nursing-research-nurse-and-patient-collaboration
#16
Anna Cox, Anne Arber, Ann Gallagher, Mairead MacKenzie, Emma Ream
PURPOSE/OBJECTIVES: To obtain consensus on priorities for oncology nursing research in the United Kingdom.
. DESIGN: A three-round online Delphi survey.
. SETTING: Oncology nurses were invited via the United Kingdom Oncology Nursing Society (UKONS) database. Patient participation was invited through patient organizations.
. SAMPLE: 50 oncology nurses and 18 patients.
. METHODS: Eligible and consenting individuals reported five priorities for oncology nursing research (round 1), rated their level of agreement with them (round 2), and restated and revised their responses in light of the group's responses (round 3)...
March 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28222056/physical-activity-sedentary-behavior-and-inflammatory-and-hemostatic-markers-in-men
#17
Tessa J Parsons, Claudio Sartini, Paul Welsh, Naveed Sattar, Sarah Ash, Lucy T Lennon, S Goya Wannamethee, I-Min Lee, Peter H Whincup, Barbara J Jefferis
PURPOSE: This study aimed to determine whether higher levels of physical activity (PA) and less sedentary behavior (SB) are associated with less inflammation, indicated by inflammatory and hemostatic biomarkers, in older men. METHODS: A cross-sectional study of 1139 men, from the British Regional Heart Study (mean ± SD age = 78 ± 5 yr), and longitudinal analyses of 490 men with two PA measures 1 yr apart were used in this study. Single fasting venous blood samples were analyzed for several biomarkers...
March 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28222043/electrostatic-effects-of-au-nanoparticles-on-near-infrared-photoluminescence-from-si-sige-due-to-nanoscale-metal-semiconductor-contact
#18
Yefei Yin, Ze Wang, Shuguang Wang, Yujie Bai, Zuimin Jiang, Zhenyang Zhong
The photoluminescence from the Si and the SiGe is comprehensively modified by the Au NPs under the excitation without the surface plasmon resonance. Moreover, it sensitively depends on the size of the Au NPs, the excitation power and the thickness of Si between the Au NPs and the SiGe. A model is proposed in terms of the electrostatic effects of the naturally charged Au NPs due to the electron transferring through the nanoscale metal/semiconductor Schottky junction without an external bias and an external injection of carriers...
February 21, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28222021/intense-blue-light-therapy-during-the-night-time-does-not-suppress-the-rhythmic-melatonin-biosynthesis-in-a-young-boy
#19
K Stebelova, J Kosnacova, M Zeman
OBJECTIVE: Melatonin is a hormone predominantly synthesized and secreted during the night by the pineal gland. Artificial light at night, especially its blue part, acutely suppresses the melatonin production. Th e aim of the present study was to find out, whether an intense blue light phototherapy of severe hyperbilirubinemia, may suppress the melatonin production during the night when the eyes will be properly protected by a sleep mask. METHODS: The main melatonin metabolite, 6-sulphatoxymelatonin was measured in urine in a nine-year old boy suffering from the Crigler-Najjar syndrome type I...
January 1, 2017: Endocrine Regulations
https://www.readbyqxmd.com/read/28221995/deep-cascade-cascading-3d-deep-neural-networks-for-fast-anomaly-detection-and-localization-in-crowded-scenes
#20
Mohammad Sabokrou, Mohsen Fayyaz, Mahmood Fathy, Reinhard Klette
This paper proposes a fast and reliable method for anomaly detection and localization in video data showing crowded scenes. Time-efficient anomaly localization is an ongoing challenge and subject of this paper. We propose a cubicpatch- based method, characterised by a cascade of classifiers, which makes use of an advanced feature-learning approach. Our cascade of classifiers has two main stages. First, a light but deep 3D auto-encoder is used for early identification of "many" normal cubic patches. This deep network operates on small cubic patches as being the first stage, before carefully resizing remaining candidates of interest, and evaluating those at the second stage using a more complex and deeper 3D convolutional neural network (CNN)...
February 17, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
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