keyword
MENU ▼
Read by QxMD icon Read
search

Sense

keyword
https://www.readbyqxmd.com/read/29353431/sensitive-electrochemical-detection-of-microrna-21-based-on-propylamine-functionalized-mesoporous-silica-with-glucometer-readout
#1
Kun Deng, Yong Zhang, Xuedong Tong
A new homogeneous electrochemical sensing system was developed for sensitive detection of microRNA-21 (miRNA-21) based on target-induced glucose release from propylamine-functionalized mesoporous silica nanoparticle (MSN) with glucometer readout. Glucose molecules (as the signal tracers) were initially gated into the pores through the interaction of the negatively charged anchor DNA with the aminated MSN. Upon addition of target miRNA, the analyte competitively hybridized with anchor DNA to form the RNA-DNA duplex, thus resulting in detachment of anchor DNA from the MSN accompanying the pore opening...
January 20, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29353396/the-differences-in-the-assessments-of-side-effects-at-an-oncology-outpatient-clinic
#2
A Bayraktar-Ekincioglu, E Kucuk
Background There is a growing interest in the use of targeted and immunotherapies in oncology. However, the assessment of side effects can be different due to interpretation of patients' health status by healthcare professionals in oncology outpatient clinics. Objective To demonstrate the differences in the assessments of side effects conducted independently by a clinical pharmacist and nurses in patients who receive targeted therapies at an oncology outpatient clinic. Setting The study was conducted at the University Oncology Hospital in an outpatient clinic from October 2015 to March 2016...
January 20, 2018: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/29353330/leveraging-variable-sensor-spatial-acuity-with-a-homogeneous-multi-scale-place-recognition-framework
#3
Adam Jacobson, Zetao Chen, Michael Milford
Most robot navigation systems perform place recognition using a single-sensor modality and one, or at most two heterogeneous map scales. In contrast, mammals perform navigation by combining sensing from a wide variety of modalities including vision, auditory, olfactory and tactile senses with a multi-scale, homogeneous neural map of the environment. In this paper, we develop a multi-scale, multi-sensor system for mapping and place recognition that combines spatial localization hypotheses at different spatial scales from multiple different sensors to calculate an overall place recognition estimate...
January 20, 2018: Biological Cybernetics
https://www.readbyqxmd.com/read/29353313/general-solution-of-the-chemical-master-equation-and-modality-of-marginal-distributions-for-hierarchic-first-order-reaction-networks
#4
Matthias Reis, Justus A Kromer, Edda Klipp
Multimodality is a phenomenon which complicates the analysis of statistical data based exclusively on mean and variance. Here, we present criteria for multimodality in hierarchic first-order reaction networks, consisting of catalytic and splitting reactions. Those networks are characterized by independent and dependent subnetworks. First, we prove the general solvability of the Chemical Master Equation (CME) for this type of reaction network and thereby extend the class of solvable CME's. Our general solution is analytical in the sense that it allows for a detailed analysis of its statistical properties...
January 20, 2018: Journal of Mathematical Biology
https://www.readbyqxmd.com/read/29352997/microglia-and-neonatal-brain-injury
#5
Carina Mallard, Marie-Eve Tremblay, Zinaida S Vexler
Microglial cells are now recognized as the "gate-keepers" of healthy brain microenvironment with their disrupted functions adversely affecting neurovascular integrity, neuronal homeostasis, and network connectivity. The perception that these cells are purely toxic under neurodegenerative conditions has been challenged by a continuously-increasing understanding of their complexity, the existence of a broad array of microglial phenotypes, and their ability to rapidly change in a context-dependent manner to attenuate or exacerbate injuries of different nature...
January 15, 2018: Neuroscience
https://www.readbyqxmd.com/read/29352821/a-brief-assessment-unravels-unmet-needs-of-older-people-in-primary-care-a-mixed-methods-evaluation-of-the-spice-tool-in-portugal
#6
Conceição Balsinha, Maria J Marques, Manuel Gonçalves-Pereira
Assessments of need may contribute to identifying health problems associated with functional deterioration in older people. A shorter version of the Camberwell Assessment of Need for the Elderly was developed for routine use in primary care, focusing on five domains: Senses, Physical ability, Incontinence, Cognition, and Emotional distress (SPICE). We aimed to explore its usefulness and feasibility in primary care. We selected a consecutive sample of 51 community-dwelling older adults. The SPICE interview was completed by GPs and patients, with perceptions about its use in primary care being explored...
January 21, 2018: Primary Health Care Research & Development
https://www.readbyqxmd.com/read/29352409/recent-perspectives-on-the-molecular-basis-of-biofilm-formation-by-pseudomonas-aeruginosa-and-approaches-for-treatment-and-biofilm-dispersal
#7
REVIEW
Sinosh Skariyachan, Vaishnavi Sneha Sridhar, Swathi Packirisamy, Supreetha Toplar Kumargowda, Sneha Basavaraj Challapilli
Pseudomonas aeruginosa, a Gram-negative, rod-shaped bacterium causes widespread diseases in humans. This bacterium is frequently related to nosocomial infections such as pneumonia, urinary tract infections (UTIs) and bacteriaemia especially in immunocompromised patients. The current review focuses on the recent perspectives on biofilms formation by these bacteria. Biofilms are communities of microorganisms in which cells stick to each other and often adhere to a surface. These adherent cells are usually embedded within a self-produced matrix of extracellular polymeric substance (EPS)...
January 19, 2018: Folia Microbiologica
https://www.readbyqxmd.com/read/29352299/bunyavirus-requirement-for-endosomal-k-reveals-new-roles-of-cellular-ion-channels-during-infection
#8
Samantha Hover, Becky Foster, Juan Fontana, Alain Kohl, Steve A N Goldstein, John N Barr, Jamel Mankouri
In order to multiply and cause disease a virus must transport its genome from outside the cell into the cytosol, most commonly achieved through the endocytic network. Endosomes transport virus particles to specific cellular destinations and viruses exploit the changing environment of maturing endocytic vesicles as triggers to mediate genome release. Previously we demonstrated that several bunyaviruses, which comprise the largest family of negative sense RNA viruses, require the activity of cellular potassium (K+) channels to cause productive infection...
January 19, 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29352263/mammalian-endoreplication-emerges-to-reveal-a-potential-developmental-timer
#9
REVIEW
Alberto Gandarillas, Rut Molinuevo, Natalia Sanz-Gómez
Among the most intriguing and relevant questions in physiology is how developing tissues correctly coordinate proliferation with differentiation. Endoreplication, in a broad sense, is a consequence of a cell division block in the presence of an active cell cycle, and it typically occurs as cells differentiate terminally to fulfill a specialised function. Until recently, endoreplication was thought to be a rare variation of the cell cycle in mammals, more common in invertebrates and plants. However, in the last years, endoreplication has been uncovered in various tissues in mammalian organisms, including human...
January 19, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29352215/magnetically-sensitive-nanodiamond-doped-tellurite-glass-fibers
#10
Yinlan Ruan, David A Simpson, Jan Jeske, Heike Ebendorff-Heidepriem, Desmond W M Lau, Hong Ji, Brett C Johnson, Takeshi Ohshima, Shahraam Afshar V, Lloyd Hollenberg, Andrew D Greentree, Tanya M Monro, Brant C Gibson
Traditional optical fibers are insensitive to magnetic fields, however many applications would benefit from fiber-based magnetometry devices. In this work, we demonstrate a magnetically sensitive optical fiber by doping nanodiamonds containing nitrogen vacancy centers into tellurite glass fibers. The fabrication process provides a robust and isolated sensing platform as the magnetic sensors are fixed in the tellurite glass matrix. Using optically detected magnetic resonance from the doped nanodiamonds, we demonstrate detection of local magnetic fields via side excitation and longitudinal collection...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352177/photonic-spin-hall-effect-enabled-refractive-index-sensor-using-weak-measurements
#11
Xinxing Zhou, Lijuan Sheng, Xiaohui Ling
In this work, we theoretically propose an optical biosensor (consists of a BK7 glass, a metal film, and a graphene sheet) based on photonic spin Hall effect (SHE). We establish a quantitative relationship between the spin-dependent shift in photonic SHE and the refractive index of sensing medium. It is found that, by considering the surface plasmon resonance effect, the refractive index variations owing to the adsorption of biomolecules in sensing medium can effectively change the spin-dependent displacements...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352145/integrating-modality-specific-expectancies-for-the-deployment-of-spatial-attention
#12
Paola Mengotti, Frank Boers, Pascasie L Dombert, Gereon R Fink, Simone Vossel
The deployment of spatial attention is highly sensitive to stimulus predictability. Despite evidence for strong crossmodal links in spatial attentional systems, it remains to be elucidated how concurrent but divergent predictions for targets in different sensory modalities are integrated. In a series of behavioral studies, we investigated the processing of modality-specific expectancies using a multimodal cueing paradigm in which auditory cues predicted the location of visual or tactile targets with modality-specific cue predictability...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352136/gphenovision-a-ground-mobile-system-with-multi-modal-imaging-for-field-based-high-throughput-phenotyping-of-cotton
#13
Yu Jiang, Changying Li, Jon S Robertson, Shangpeng Sun, Rui Xu, Andrew H Paterson
Imaging sensors can extend phenotyping capability, but they require a system to handle high-volume data. The overall goal of this study was to develop and evaluate a field-based high throughput phenotyping system accommodating high-resolution imagers. The system consisted of a high-clearance tractor and sensing and electrical systems. The sensing system was based on a distributed structure, integrating environmental sensors, real-time kinematic GPS, and multiple imaging sensors including RGB-D, thermal, and hyperspectral cameras...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352112/direct-cell-cell-contact-between-mature-osteoblasts-and-osteoclasts-dynamically-controls-their-functions-in-vivo
#14
Masayuki Furuya, Junichi Kikuta, Sayumi Fujimori, Shigeto Seno, Hiroki Maeda, Mai Shirazaki, Maki Uenaka, Hiroki Mizuno, Yoriko Iwamoto, Akito Morimoto, Kunihiko Hashimoto, Takeshi Ito, Yukihiro Isogai, Masafumi Kashii, Takashi Kaito, Shinsuke Ohba, Ung-Il Chung, Alexander C Lichtler, Kazuya Kikuchi, Hideo Matsuda, Hideki Yoshikawa, Masaru Ishii
Bone homeostasis is regulated by communication between bone-forming mature osteoblasts (mOBs) and bone-resorptive mature osteoclasts (mOCs). However, the spatial-temporal relationship and mode of interaction in vivo remain elusive. Here we show, by using an intravital imaging technique, that mOB and mOC functions are regulated via direct cell-cell contact between these cell types. The mOBs and mOCs mainly occupy discrete territories in the steady state, although direct cell-cell contact is detected in spatiotemporally limited areas...
January 19, 2018: Nature Communications
https://www.readbyqxmd.com/read/29352085/the-expression-of-bacteriocin-production-and-self-resistance-in-lactobacillus-brevis-174a-is-mediated-by-two-regulatory-proteins
#15
Masafumi Noda, Rumi Miyauchi, Narandalai Danshiitsoodol, Yasuyuki Matoba, Takanori Kumagai, Masanori Sugiyama
We have previously shown that a lactic acid bacterium Lactobacillus (Lb.) brevis 174A isolated from a Citrus iyo fruit produces bacteriocin designated brevicin 174A, which is comprised of two antibacterial polypeptides (designated brevicin 174A-β and 174A-γ). We have also found a gene cluster, composed of eight open reading frames (ORFs), that contains genes for the biosynthesis of brevicin 174A, self-resistance to its own bacteriocin, and two transcriptional regulatory proteins.Some lactic acid bacterial strains have a system to start the production of bacteriocin at an adequate stage of the growth...
January 19, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29351913/the-rig-i-like-receptor-lgp2-inhibits-dicer-dependent-processing-of-long-double-stranded-rna-and-blocks-rna-interference-in-mammalian-cells
#16
Annemarthe G van der Veen, Pierre V Maillard, Jan Marten Schmidt, Sonia A Lee, Safia Deddouche-Grass, Annabel Borg, Svend Kjær, Ambrosius P Snijders, Caetano Reis E Sousa
In vertebrates, the presence of viral RNA in the cytosol is sensed by members of the RIG-I-like receptor (RLR) family, which signal to induce production of type I interferons (IFN). These key antiviral cytokines act in a paracrine and autocrine manner to induce hundreds of interferon-stimulated genes (ISGs), whose protein products restrict viral entry, replication and budding. ISGs include the RLRs themselves: RIG-I, MDA5 and, the least-studied family member, LGP2. In contrast, the IFN system is absent in plants and invertebrates, which defend themselves from viral intruders using RNA interference (RNAi)...
January 19, 2018: EMBO Journal
https://www.readbyqxmd.com/read/29351898/young-people-s-parents-and-professionals-views-on-required-components-of-mobile-apps-to-support-self-management-of-juvenile-arthritis-qualitative-study
#17
Jennifer M Waite-Jones, Rabiya Majeed-Ariss, Joanna Smith, Simon R Stones, Vanessa Van Rooyen, Veronica Swallow
BACKGROUND: There is growing evidence that supporting self-management of Juvenile Arthritis can benefit both patients and professionals. Young people with Juvenile Arthritis and their healthy peers increasingly use mobile technologies to access information and support in day-to-day life. Therefore, a user-led, rigorously developed and evaluated mobile app could be valuable for facilitating young people's self-management of Juvenile Arthritis. OBJECTIVE: The objective of this study was to seek the views of young people with Juvenile Arthritis, their parents or carers, and health care professionals (HCPs) as to what should be included in a mobile app to facilitate young people's self-management of chronic Juvenile Arthritis...
January 19, 2018: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/29351815/ready-to-use-protein-g-conjugated-gold-nanorods-for-biosensing-and-biomedical-applications
#18
S Centi, F Ratto, F Tatini, S Lai, R Pini
BACKGROUND: Gold nanorods (GNRs) display unique capacity to absorb and scatter near infrared light, which arises from their peculiar composition of surface plasmon resonances. For this reason, GNRs have become an innovative material of great hope in nanomedicine, in particular for imaging and therapy of cancer, as well as in photonic sensing of biological agents and toxic compounds for e.g. biomedical diagnostics, forensic analysis and environmental monitoring. As the use of GNRs is becoming more and more popular, in all these contexts, there is emerging a latent need for simple and versatile protocols for their modification with targeting units that may convey high specificity for any analyte of interest of an end-user...
January 19, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29351743/phosphate-signaling-through-alternate-conformations-of-the-pstscab-phosphate-transporter
#19
Ramesh K Vuppada, Colby R Hansen, Kirsta A P Strickland, Keilen M Kelly, William R McCleary
BACKGROUND: Phosphate is an essential compound for life. Escherichia coli employs a signal transduction pathway that controls the expression of genes that are required for the high-affinity acquisition of phosphate and the utilization of alternate sources of phosphorous. These genes are only expressed when environmental phosphate is limiting. The seven genes for this signaling pathway encode the two-component regulatory proteins PhoB and PhoR, as well as the high-affinity phosphate transporter PstSCAB and an auxiliary protein called PhoU...
January 19, 2018: BMC Microbiology
https://www.readbyqxmd.com/read/29351723/mitochondrial-uncoupling-proteins-subtle-regulators-of-cellular-redox-signaling
#20
Petr Jezek, Blanka Holendová, Keith D Garlid, Martin Jaburek
SIGNIFICANCE: Mitochondria are the energetic, metabolic, redox and information signaling centers of the cell. Substrate pressure, mitochondrial network dynamics and cristae morphology state are integrated by the protonmotive force Δp or its potential component, ΔΨ, which are attenuated by proton backflux into the matrix, termed uncoupling. The mitochondrial uncoupling proteins (UCP1-5) play an eminent role in the regulation of each of the above aspects, being involved in numerous physiological events including redox signaling...
January 19, 2018: Antioxidants & Redox Signaling
keyword
keyword
120695
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"