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https://www.readbyqxmd.com/read/28210922/resting-cerebral-blood-flow-alteration-in-severe-obstructive-sleep-apnoea-an-arterial-spin-labelling-perfusion-fmri-study
#1
Si Nie, De-Chang Peng, Hong-Han Gong, Hai-Jun Li, Li-Ting Chen, Cheng-Long Ye
STUDY OBJECTIVES: The aim of this study is to investigate changes in regional cerebral blood flow (rCBF) in awake people with untreated severe obstructive sleep apnoea (OSAs) compared with good sleepers (GSs). DESIGN: Arterial spin labelling perfusion imaging was used to quantify cerebral perfusion based on resting-state functional magnetic resonance imaging (MRI). SETTING: Lying supine in a 3.0-T magnetic resonance imaging scanner in the night was done...
February 16, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28208671/a-passive-learning-sensor-architecture-for-multimodal-image-labeling-an-application-for-social-robots
#2
Marco A Gutiérrez, Luis J Manso, Harit Pandya, Pedro Núñez
Object detection and classification have countless applications in human-robot interacting systems. It is a necessary skill for autonomous robots that perform tasks in household scenarios. Despite the great advances in deep learning and computer vision, social robots performing non-trivial tasks usually spend most of their time finding and modeling objects. Working in real scenarios means dealing with constant environment changes and relatively low-quality sensor data due to the distance at which objects are often found...
February 11, 2017: Sensors
https://www.readbyqxmd.com/read/28207002/detecting-natural-adaptation-of-the-streptococcus-thermophilus-crispr-cas-systems-in-research-and-classroom-settings
#3
Alexander P Hynes, Marie-Laurence Lemay, Luc Trudel, Hélène Deveau, Michel Frenette, Denise M Tremblay, Sylvain Moineau
CRISPR (clustered regularly interspaced short palindromic repeats)-Cas systems have been adapted into a powerful genome-editing tool. The basis for the flexibility of the tool lies in the adaptive nature of CRISPR-Cas as a bacterial immune system. Here, we describe a protocol to experimentally demonstrate the adaptive nature of this bacterial immune system by challenging the model organism for the study of CRISPR adaptation, Streptococcus thermophilus, with phages in order to detect natural CRISPR immunization...
March 2017: Nature Protocols
https://www.readbyqxmd.com/read/28196346/organochlorine-pesticides-ocps-and-polychlorinated-biphenyls-pcbs-in-human-breast-milk-and-associated-health-risks-to-nursing-infants-in-northern-tanzania
#4
M H B Müller, A Polder, O B Brynildsrud, M Karimi, E Lie, W B Manyilizu, R H Mdegela, F Mokiti, M Murtadha, H E Nonga, J U Skaare, J L Lyche
This is the first study to report organochlorines (OCs), including chlorinated pesticides (OCPs) and polychlorinated biphenyls (PCBs) in human milk from Tanzania. The main aims of this study were to assess the level of contamination and the possible health risks related to OC exposure in nursing infants from the Northern parts of Tanzania. Ninety-five healthy mother-infant couples attending Mount Meru Regional Referral Hospital (MMRRH), Arusha, Tanzania, were assessed for associations between maternal/infant characteristics, i...
February 11, 2017: Environmental Research
https://www.readbyqxmd.com/read/28193329/characterization-and-crystal-structure-of-a-thermostable-glycoside-hydrolase-family-45-1-4-%C3%AE-endoglucanase-from-thielavia-terrestris
#5
Jian Gao, Jian-Wen Huang, Qian Li, Weidong Liu, Tzu-Ping Ko, Yingying Zheng, Xiansha Xiao, Chih-Jung Kuo, Chun-Chi Chen, Rey-Ting Guo
1,4-β-Endoglucanase is one of the most important biocatalysts in modern industries. Here, a glycoside hydrolase (GH) family 45 endoglucanase from thermophilic fungus Theilavia terrestris (TtCel45A) was expressed in Pichia pastoris. The recombinant protein shows optimal activity at 60°C, pH 4-5. The enzyme exhibits extraordinary thermostability that more than 80% activity was detected after heating at 80°C for 2.5h. The high resolution crystal structures of apo-form enzyme and that in complex with cellobiose and cellotetraose were solved to 1...
April 2017: Enzyme and Microbial Technology
https://www.readbyqxmd.com/read/28193051/glutathione-modified-gold-nanoparticles-for-sensitive-colorimetric-detection-of-pb-2-ions-in-rainwater-polluted-by-leaking-perovskite-solar-cells
#6
Yaming Yu, Ying Hong, Peng Gao, Mohammad Khaja Nazeeruddin
In the past few years, the advent of lead halide perovskite solar cells (PSCs) has revolutionized the prospects of the third- generation photovoltaics and the reported power conversion efficiency (PCE) has been updated to 22%. Nevertheless, two main challenges, including the poisonous content of Pb and the vexing instability toward water, still lie between the lab-based PSCs technology and large scale commercialization. With this background, we first evaluated Pb(2+) concentration from the rainwater samples polluted by three types of markets promising PSCs with inductively coupled plasma mass spectrometry measurements (ICP-MS) as a case study...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28186973/upregulation-of-fam84b-during-prostate-cancer-progression
#7
Nicholas Wong, Yan Gu, Anil Kapoor, Xiaozeng Lin, Diane Ojo, Fengxiang Wei, Judy Yan, Jason de Melo, Pierre Major, Geoffrey Wood, Tariq Aziz, Jean-Claude Cutz, Michael Bonert, Arthur J Patterson, Damu Tang
Although the FAM84B gene lies within chromosome 8q24, a locus frequently altered in prostate cancer (PC), its alteration during prostate tumorigenesis has not been well studied. We report here FAM84B upregulation in DU145 cell-derived prostate cancer stem-like cells (PCSLCs) and DU145 cell-produced lung metastases compared to subcutaneous xenograft tumors. FAM84B protein was detected in bone metastases and primary PCs. Nanostring examination of 7 pairs of tumor adjacent normal and PC tissues revealed elevations in FAM84B mRNA levels in all carcinomas...
February 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28185371/do-depression-and-anxiety-profiles-over-time-predict-persistent-post-surgical-pain-a-study-in-cardiac-surgery-patients
#8
M Gabrielle Pagé, J Watt-Watson, M Choinière
BACKGROUND: Rates of depression and anxiety in cardiac surgery patients are higher than in the general population. The development of persistent post-surgical pain (PPSP) in this population is also concerning. The objectives of this study were to (1) identify anxiety and depression trajectories of cardiac surgery patients over a 2-year period; (2) examine demographic and clinical characteristics associated with trajectory memberships and (3) determine if anxiety and/or depression trajectories predict PPSP...
February 10, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28184180/serum-proteomic-based-analysis-identifying-autoantibodies-against-prdx2-and-prdx3-as-potential-diagnostic-biomarkers-in-nasopharyngeal-carcinoma
#9
Lie-Hao Lin, Yi-Wei Xu, Li-Sheng Huang, Chao-Qun Hong, Tian-Tian Zhai, Lian-Di Liao, Wen-Jie Lin, Li-Yan Xu, Kai Zhang, En-Min Li, Yu-Hui Peng
BACKGROUND: Nasopharyngeal carcinoma (NPC) is a major head and neck cancer with high occurrence in Southeast Asia and southern China. We aimed to identify autoantibodies that may contribute to early detection of NPC. METHODS: We used serological proteome analysis to identify candidate autoantibodies against tumor-associated antigens. Levels of autoantibodies and Epstein-Barr virus capsid antigen-IgA (VCA-IgA) were measured by ELISA in 129 patients with NPC and 100 normal controls...
2017: Clinical Proteomics
https://www.readbyqxmd.com/read/28182460/lying-takes-time-a-meta-analysis-on-reaction-time-measures-of-deception
#10
Kristina Suchotzki, Bruno Verschuere, Bram Van Bockstaele, Gershon Ben-Shakhar, Geert Crombez
Lie detection techniques are frequently used, but most of them have been criticized for the lack of empirical support for their predictive validity and presumed underlying mechanisms. This situation has led to increased efforts to unravel the cognitive mechanisms underlying deception and to develop a comprehensive theory of deception. A cognitive approach to deception has reinvigorated interest in reaction time (RT) measures to differentiate lies from truths and to investigate whether lying is more cognitively demanding than truth telling...
February 9, 2017: Psychological Bulletin
https://www.readbyqxmd.com/read/28178945/comparative-genomics-of-canine-hemoglobin-genes-reveals-primacy-of-beta-subunit-delta-in-adult-carnivores
#11
Sara Zaldívar-López, Jennie L Rowell, Elise M Fiala, Isain Zapata, C Guillermo Couto, Carlos E Alvarez
BACKGROUND: The main function of hemoglobin (Hb) is to transport oxygen in the circulation. It is among the most highly studied proteins due to its roles in physiology and disease, and most of our understanding derives from comparative research. There is great diversity in Hb gene evolution in placental mammals, mostly in the repertoire and regulation of the β-globin subunits. Dogs are an ideal model in which to study Hb genes because: 1) they are members of Laurasiatheria, our closest relatives outside of Euarchontoglires (including primates, rodents and rabbits), 2) dog breeds are isolated populations with their own Hb-associated genetics and diseases, and 3) their high level of health care allows for development of biomedical investigation and translation...
February 8, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28178572/changes-in-the-proteome-of-grapevine-leaves-vitis-vinifera-l-during-long-term-drought-stress
#12
Angelika Król, Stanisław Weidner
The essence of exploring and understanding mechanisms of plant adaptation to environmental stresses lies in the determination of patterns of the expression of proteins, identification of stress proteins and their association with the specific functions in metabolic pathways. To date, little information has been provided about the proteomic response of grapevine to the persistent influence of adverse environmental conditions. This article describes changes in the profile of protein accumulation in leaves of common grapevine (Vitis vinifera L...
January 20, 2017: Journal of Plant Physiology
https://www.readbyqxmd.com/read/28177383/evaluating-the-behavior-growth-performance-immune-parameters-and-intestinal-morphology-of-weaned-piglets-after-simulated-transport-and-heat-stress-when-antibiotics-are-eliminated-from-the-diet-or-replaced-with-l-glutamine
#13
J S Johnson, D C Lay
Study objectives were to evaluate the effects of post-weaning transport during heat stress (HS) and thermoneutral (TN) conditions when dietary antibiotics are removed or replaced with a nutraceutical. Sixty mixed sex piglets from 10 sows ( = 6 piglets/sow) were weaned (18.8 ± 0.8 d of age) and then herded up ramps into 1 of 2 simulated transport trailers in either TN (28.8 ± 0.2°C) or HS (cyclical 32 to 37°C) conditions where they remained for 12 h. During the 12 h of simulated transport, fans were used to simulate air movement through the trailer, feed and water were withheld, and rectal temperature (T) was measured hourly...
January 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28176239/-rapid-diagnostic-test-for-malaria
#14
S Houzé
The rapid diagnostic tests (RDTs) whose main interest lies in their implementation without special equipment by unskilled personnel have grown significantly over the past fifteen years to diagnose malaria. They rely on the detection of specific Plasmodium proteins, PfHRP2, pLDH and aldolase. If the detection of PfHRP2 has very good sensitivity for the diagnosis of Plasmodium falciparum malaria, the detection of pLDH or aldolase is less efficient for other species, leaving its place to the reference microscopic diagnosis...
February 7, 2017: Bulletin de la Société de Pathologie Exotique
https://www.readbyqxmd.com/read/28165504/implementation-of-a-method-to-visualize-noise-induced-hearing-loss-in-mass-stranded-cetaceans
#15
Maria Morell, Andrew Brownlow, Barry McGovern, Stephen A Raverty, Robert E Shadwick, Michel André
Assessment of the impact of noise over-exposure in stranded cetaceans is challenging, as the lesions that lead to hearing loss occur at the cellular level and inner ear cells are very sensitive to autolysis. Distinguishing ante-mortem pathology from post-mortem change has been a major constraint in diagnosing potential impact. Here, we outline a methodology applicable to the detection of noise-induced hearing loss in stranded cetaceans. Inner ears from two mass strandings of long-finned pilot whales in Scotland were processed for scanning electron microscopy observation...
February 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28159229/daily-lying-time-motion-index-and-step-frequency-in-dairy-cows-change-throughout-lactation
#16
Jarissa Maselyne, Matti Pastell, Peter T Thomsen, Vivi M Thorup, Laura Hänninen, Jürgen Vangeyte, Annelies Van Nuffel, Lene Munksgaard
Lying behaviour in dairy cows has the potential to be used for welfare assessment or problem detection, but knowledge about variation in normal lying behaviour is scarce. Accelerometer data were collected at four Danish farms from 366 Holstein dairy cows in loose-housing systems in 2008 and 2009. Daily lying time decreased steeply during early lactation to a minimum around four weeks after calving, followed by a steady increase towards the end of lactation. Motion index and step frequency during walking exhibited a similar pattern...
February 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28148207/clinical-cancer-advances-2017-annual-report-on-progress-against-cancer-from-the-american-society-of-clinical-oncology
#17
Harold J Burstein, Lada Krilov, Jeanny B Aragon-Ching, Nancy N Baxter, E Gabriela Chiorean, Warren Allen Chow, John Frederick De Groot, Steven Michael Devine, Steven G DuBois, Wafik S El-Deiry, Andrew S Epstein, John Heymach, Joshua Adam Jones, Deborah K Mayer, Rebecca A Miksad, Nathan A Pennell, Michael S Sabel, Richard L Schilsky, Lynn Mara Schuchter, Nadine Tung, Karen Marie Winkfield, Lori J Wirth, Don S Dizon
A MESSAGE FROM ASCO'S PRESIDENT I am pleased to present Clinical Cancer Advances 2017, which highlights the most promising advances in patient-oriented cancer research over the past year. The report gives us an opportunity to reflect on what an exciting time it is for cancer research and how swiftly our understanding of cancer has improved. One year ago, the White House announced the national Cancer Moonshot program to accelerate progress against cancer. This shared vision of progress has reinvigorated the research community, identified new areas of scientific collaboration, and raised our ambitions regarding what may be possible beyond the progress we have already made...
February 1, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28134918/continental-scale-pollution-of-estuaries-with-antibiotic-resistance-genes
#18
Yong-Guan Zhu, Yi Zhao, Bing Li, Chu-Long Huang, Si-Yu Zhang, Shen Yu, Yong-Shan Chen, Tong Zhang, Michael R Gillings, Jian-Qiang Su
Antibiotic resistance genes (ARGs) have moved from the environmental resistome into human commensals and pathogens, driven by human selection with antimicrobial agents. These genes have increased in abundance in humans and domestic animals, to become common components of waste streams. Estuarine habitats lie between terrestrial/freshwater and marine ecosystems, acting as natural filtering points for pollutants. Here, we have profiled ARGs in sediments from 18 estuaries over 4,000 km of coastal China using high-throughput quantitative polymerase chain reaction, and investigated their relationship with bacterial communities, antibiotic residues and socio-economic factors...
January 30, 2017: Nature Microbiology
https://www.readbyqxmd.com/read/28129199/asynchronous-periodic-edge-event-triggered-control-for-double-integrator-networks-with-communication-time-delays
#19
Gaopeng Duan, Feng Xiao, Long Wang
This paper focuses on the average consensus of double-integrator networked systems based on the asynchronous periodic edge-event triggered control. The asynchronous property lies in the edge event-detecting procedure. For different edges, their event detections are performed at different times and the corresponding events occur independently of each other. When an event is activated, the two adjacent agents connected by the corresponding link sample their relative state information and update their controllers...
January 23, 2017: IEEE Transactions on Cybernetics
https://www.readbyqxmd.com/read/28122303/icariin-promotes-proliferation-and-osteogenic-differentiation-of-rat-adipose-derived-stem-cells-by-activating-the-rhoa-taz-signaling-pathway
#20
Yaping Ye, Xingzhi Jing, Na Li, Yingxing Wu, Bingbing Li, Tao Xu
Icariin, the main active flavonoid glucoside isolated from Herba epimedii, has been demonstrated to be a potential alternative therapy to prevent postmenopausal osteoporosis. Icariin has also been shown to regulate the proliferation and osteogenic differentiation of rat bone marrow stromal cells (rBMSCs). However, the detailed molecular mechanism of icariin has remained largely unknown. Besides, no investigation has focused on the relevance of icariin in the regulation of rat adipose-derived stem cells (rASCs) proliferation and osteogenic differentiation...
January 22, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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