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https://www.readbyqxmd.com/read/28445930/opioids-modulators-of-angiogenesis-in-wound-healing-and-cancer
#1
REVIEW
Martina Ondrovics, Andrea Hoelbl-Kovacic, Daniela Alexandra Fux
Opioids are potent drugs that are widely used to control wound or cancer pain. Increasing evidence suggest that opioids mediate clinically relevant effects that go beyond their classical role as analgesics. Of note, opioids appear to modulate angiogenesis - a process that is critical in wound healing and cancer progression. In this review, we focus on pro- and anti-angiogenic facets of opioids that arise from the activation of individual opioid receptors and the usage of individual concentrations or application routes...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28445900/central-and-peripheral-glucagon-reduces-hyperlipidemia-in-rats-and-hamsters
#2
Vishal Patel, Amit Joharapurkar, Samadhan Kshirsagar, Hiren M Patel, Dheerendra Pandey, Dipam Patel, Kiran Shah, Rajesh Bahekar, Gaurang B Shah, Mukul R Jain
Increased lipid levels in blood contribute to increasing the risk of diabetic complications. Glucagon exerts lipid lowering effects in diabetic state. However, the mechanism behind the lipid reduction by glucagon independent of glucose homeostasis is not well understood. We assessed the actions of glucagon on lipid modulation in blood and markers in liver in hyperlipidemic hamsters and rats. Male Sprague Dawley rats and Golden Syrian hamsters on a hyperlipidemic diet for 2 weeks were administered a single dose of glucagon by subcutaneous (SC, 150 and 300 µg/kg) or intracerebroventricular (ICV, 15 and 30 µg/animal) route...
April 26, 2017: Drug Research
https://www.readbyqxmd.com/read/28445884/synergistic-action-of-presynaptic-muscarinic-acetylcholine-receptors-and-adenosine-receptors-in-developmental-axonal-competition-at-the-neuromuscular-junction
#3
Laura Nadal, Neus Garcia, Erica Hurtado, Anna Simó, Marta Tomàs, Maria Angel Lanuza, Victor Cilleros, Josep Maria Tomàs
The development of the nervous system involves the initial overproduction of synapses, which promotes connectivity. Hebbian competition between axons with different activities leads to the loss of roughly half of the overproduced elements and this refines connectivity. We used quantitative immunohistochemistry to investigate, in the postnatal day 7 (P7) to P9 neuromuscular junctions, the involvement of muscarinic receptors (muscarinic acetylcholine autoreceptors and the M1, M2, and M4 subtypes) and adenosine receptors (A1 and A2A subtypes) in the control of axonal elimination after the mouse levator auris longus muscle had been exposed to selective antagonists in vivo...
April 27, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28445677/overexpression-of-the-cytokine-baff-and-autoimmunity-risk
#4
Maristella Steri, Valeria Orrù, M Laura Idda, Maristella Pitzalis, Mauro Pala, Ilenia Zara, Carlo Sidore, Valeria Faà, Matteo Floris, Manila Deiana, Isadora Asunis, Eleonora Porcu, Antonella Mulas, Maria G Piras, Monia Lobina, Sandra Lai, Mara Marongiu, Valentina Serra, Michele Marongiu, Gabriella Sole, Fabio Busonero, Andrea Maschio, Roberto Cusano, Gianmauro Cuccuru, Francesca Deidda, Fausto Poddie, Gabriele Farina, Mariano Dei, Francesca Virdis, Stefania Olla, Maria A Satta, Mario Pani, Alessandro Delitala, Eleonora Cocco, Jessica Frau, Giancarlo Coghe, Lorena Lorefice, Giuseppe Fenu, Paola Ferrigno, Maria Ban, Nadia Barizzone, Maurizio Leone, Franca R Guerini, Matteo Piga, Davide Firinu, Ingrid Kockum, Izaura Lima Bomfim, Tomas Olsson, Lars Alfredsson, Ana Suarez, Patricia E Carreira, Maria J Castillo-Palma, Joseph H Marcus, Mauro Congia, Andrea Angius, Maurizio Melis, Antonio Gonzalez, Marta E Alarcón Riquelme, Berta M da Silva, Maurizio Marchini, Maria G Danieli, Stefano Del Giacco, Alessandro Mathieu, Antonello Pani, Stephen B Montgomery, Giulio Rosati, Jan Hillert, Stephen Sawcer, Sandra D'Alfonso, John A Todd, John Novembre, Gonçalo R Abecasis, Michael B Whalen, Maria G Marrosu, Alessandra Meloni, Serena Sanna, Myriam Gorospe, David Schlessinger, Edoardo Fiorillo, Magdalena Zoledziewska, Francesco Cucca
Background Genomewide association studies of autoimmune diseases have mapped hundreds of susceptibility regions in the genome. However, only for a few association signals has the causal gene been identified, and for even fewer have the causal variant and underlying mechanism been defined. Coincident associations of DNA variants affecting both the risk of autoimmune disease and quantitative immune variables provide an informative route to explore disease mechanisms and drug-targetable pathways. Methods Using case-control samples from Sardinia, Italy, we performed a genomewide association study in multiple sclerosis followed by TNFSF13B locus-specific association testing in systemic lupus erythematosus (SLE)...
April 27, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28445593/nr5a2-discovering-compounds-that-block-tumor-growth-in-pdac
#5
REVIEW
Robert Fletterick
Pancreatic cancers depend on driver molecules, oncogene proteins such as RAS. NR5A2 protein is a transcription factor and either activates or inhibits transcription through actions at hundreds of enhancers. It has unusual properties with effects appearing in multiple signaling networks. NR5A2 is a pluripotency reprogramming factor in the class nuclear receptor. Its controlling hormone is PIP3. Experiments suggest NR5A2 activation drives PDAC and inhibitors blunt cancer cell proliferation.
April 26, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28444769/lesions-of-the-basal-forebrain-cholinergic-neurons-attenuates-sleepiness-and-adenosine-after-alcohol-consumption
#6
Rishi Sharma, Pradeep Sahota, Mahesh M Thakkar
Alcohol has a profound effect on sleep. However, neuronal substrates mediating sleep-promoting effects of alcohol are unknown. Since the basal forebrain (BF) cholinergic neurons are implicated in the homeostatic regulation of sleep, we hypothesized that the BF cholinergic neurons may have an important role in sleepiness observed after alcohol consumption. 192-IgG-saporin (bilateral BF infusions) was used to selectively lesion BF cholinergic neurons in adult male Sprague Dawley rats. Standard surgical procedures were used to implant sleep recording electrodes or microdialysis guide cannulas...
April 26, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28444732/low-back-pain-among-nurses-in-slovenian-hospitals-cross-sectional-study
#7
B Skela-Savič, K Pesjak, S Hvalič-Touzery
AIM: The study investigated the prevalence and factors predicting low back pain among nurses in Slovenian hospitals. BACKGROUND: The risk factors for low back pain are physical and psychosocial. Implementation of interventions for reducing low back pain calls for management support, accessible equipment, education, knowledge and risk assessment. INTRODUCTION: Low back pain prevalence and incidence among healthcare workers is very high compared to the general population and is a strong risk factor for long-term sickness absence...
April 26, 2017: International Nursing Review
https://www.readbyqxmd.com/read/28444605/recent-trends-of-modern-bacterial-insecticides-for-pest-control-practice-in-integrated-crop-management-system
#8
REVIEW
Pritam Chattopadhyay, Goutam Banerjee, Sayantan Mukherjee
Food security and safety are the major concern in ever expanding human population on the planet earth. Each and every year insect pests cause a serious damage in agricultural field that cost billions of dollars annually to farmers. The loss in term of productivity and high cost of chemical pesticides enhance the production cost. Irrespective use of chemical pesticides (such as Benzene hexachloride, Endosulfan, Aldicarb, and Fenobucarb) in agricultural field raised several types of environmental issues. Furthermore, continuous use of chemical pesticides creates a selective pressure which helps in emerging of resistance pest...
May 2017: 3 Biotech
https://www.readbyqxmd.com/read/28444539/association-of-the-oas3-rs1859330-g-a-genetic-polymorphism-with-severity-of-enterovirus-71-infection-in-chinese-han-children
#9
Yuxia Tan, Tingting Yang, Peipei Liu, Liping Chen, Qingwu Tian, Ya Guo, Hongfang He, Yedan Liu, Zongbo Chen
The 2'5'-oligoadenylate synthetase (OAS) is an interferon (IFN)-induced protein that plays an important role in the antiviral action of IFN, with OAS3 being one of the four OAS classes (OAS1, OAS2, OAS3, OASL). The effect of OAS on several infectious viral diseases has been reported; however, a study of the effect of OAS3 on enterovirus 71 (EV71) is lacking. The purpose of this study was to evaluate the association of the OAS3 rs1859330 G/A genetic polymorphism with susceptibility and severity of EV71 infection...
April 25, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28444519/intention-to-enact-and-enactment-of-gatekeeper-behaviors-for-suicide-prevention-an-application-of-the-theory-of-planned-behavior
#10
Shane T W Kuhlman, Susan E Walch, Kristina N Bauer, April D Glenn
Gatekeeper training for suicide prevention was evaluated on a college campus to examine the impact of training on gatekeeper enactment of behaviors in support of suicide prevention and identify predictors of enactment of gatekeeper behaviors. Trained gatekeepers (N = 216) displayed greater perceived knowledge and self-efficacy for suicide prevention and reported higher rates of self-reported actual gatekeeper behaviors, including inquiring about suicidal ideation and referring for mental health treatment when they encountered someone in distress, compared to their untrained counterparts (N = 169)...
April 25, 2017: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/28444235/right-hemisphere-structural-adaptation-and-changing-language-skills-years-after-left-hemisphere-stroke
#11
Thomas M H Hope, Alex P Leff, Susan Prejawa, Rachel Bruce, Zula Haigh, Louise Lim, Sue Ramsden, Marion Oberhuber, Philipp Ludersdorfer, Jenny Crinion, Mohamed L Seghier, Cathy J Price
Stroke survivors with acquired language deficits are commonly thought to reach a 'plateau' within a year of stroke onset, after which their residual language skills will remain stable. Nevertheless, there have been reports of patients who appear to recover over years. Here, we analysed longitudinal change in 28 left-hemisphere stroke patients, each more than a year post-stroke when first assessed-testing each patient's spoken object naming skills and acquiring structural brain scans twice. Some of the patients appeared to improve over time while others declined; both directions of change were associated with, and predictable given, structural adaptation in the intact right hemisphere of the brain...
April 24, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28444173/tac1-signaling-is-required-for-sexual-maturation-and-responsiveness-of-gnrh-neurons-to-kisspeptin-in-the-male-mouse
#12
Caroline A Maguire, Yong Bhum Song, Min Wu, Silvia León, Rona S Carroll, Meenakshi Alreja, Ursula B Kaiser, Víctor M Navarro
The tachykinins substance P (SP) and neurokinin A (NKA) (Tac1) have emerged as novel regulators of kisspeptin/GnRH release. Recently, we documented that SP modulates reproductive function in the female mouse. Here, we extended this characterization to the male mouse. Tac1-/- male mice showed delayed puberty onset. They also presented significantly decreased expression levels of Pdyn (dynorphin) and Nos1 (nitric oxide synthase) in the mediobasal hypothalamus and elevated Gnrh1 levels. Unexpectedly, the response of Tac1-/- mice to central kisspeptin or senktide (neurokinin B receptor -NK3R- agonist) administration was significantly decreased compared with controls, despite the preserved ability of GnRH neurons to stimulate LH release as demonstrated by central NMDA administration, suggesting a deficit at the GnRH neuron level...
April 21, 2017: Endocrinology
https://www.readbyqxmd.com/read/28443889/the-passivating-effect-of-cadmium-in-pbs-cds-colloidal-quantum-dots-probed-by-nm-scale-depth-profiling
#13
Pip C J Clark, Hanna Radtke, Atip Pengpad, Andrew I Williamson, Ben F Spencer, Samantha J O Hardman, Marina A Leontiadou, Darren C J Neo, Simon M Fairclough, Andrew A R Watt, Igor Pis, Silvia Nappini, Federica Bondino, Elena Magnano, Karsten Handrup, Karina Schulte, Mathieu G Silly, Fausto Sirotti, Wendy R Flavell
Achieving control of the surface chemistry of colloidal quantum dots (CQDs) is essential to fully exploit their properties in solar cells, but direct measurement of the chemistry and electronic structure in the outermost atomic layers is challenging. Here we probe the surface oxidation and passivation of cation-exchanged PbS/CdS core/shell CQDs with sub nm-scale precision using synchrotron-radiation-excited depth-profiling photoemission. We investigate the surface composition of the topmost 1-2.5 nm of the CQDs as a function of depth, for CQDs of varying CdS shell thickness, and examine how the surface changes after prolonged air exposure...
April 26, 2017: Nanoscale
https://www.readbyqxmd.com/read/28443696/the-development-and-modelling-of-devices-and-paradigms-for-transcranial-magnetic-stimulation
#14
Stefan M Goetz, Zhi-De Deng
Magnetic stimulation is a non-invasive neurostimulation technique that can evoke action potentials and modulate neural circuits through induced electric fields. Biophysical models of magnetic stimulation have become a major driver for technological developments and the understanding of the mechanisms of magnetic neurostimulation and neuromodulation. Major technological developments involve stimulation coils with different spatial characteristics and pulse sources to control the pulse waveform. While early technological developments were the result of manual design and invention processes, there is a trend in both stimulation coil and pulse source design to mathematically optimize parameters with the help of computational models...
April 26, 2017: International Review of Psychiatry
https://www.readbyqxmd.com/read/28443467/effect-of-irinotecan-on-hmgb1-mmp9-expression-cell-cycle-and-cell-growth-in-breast-cancer-mcf-7-cells
#15
Saeedeh Keyvani-Ghamsari, Azra Rabbani-Chadegani, Javad Sargolzaei, Maryam Shahhoseini
Irinotecan is a natural alkaloid agent widely used in cancer therapy. High-mobility group protein B1 as a non-histone chromosomal protein plays a fundamental role in gene expression and inflammation. In this study, the effect of irinotecan on high-mobility group protein B1 and MMP9 content, gene expression, cell cycle, and cell growth in human breast cancer cells (MCF-7) was investigated. The cells were exposed to various concentrations of irinotecan and the viability determined by trypan blue exclusion and 3-(4,5-dimethylthiazal-2-yl)-2,5-diphenyltetrazolium bromide assays...
April 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28443244/the-mitochondrial-voltage-dependent-anion-channel-1-ca-2-transport-apoptosis-and-their-regulation
#16
REVIEW
Varda Shoshan-Barmatz, Soumasree De, Alon Meir
In the outer mitochondrial membrane, the voltage-dependent anion channel 1 (VDAC1) functions in cellular Ca(2+) homeostasis by mediating the transport of Ca(2+) in and out of mitochondria. VDAC1 is highly Ca(2+)-permeable and modulates Ca(2+) access to the mitochondrial intermembrane space. Intramitochondrial Ca(2+) controls energy metabolism by enhancing the rate of NADH production via modulating critical enzymes in the tricarboxylic acid cycle and fatty acid oxidation. Mitochondrial [Ca(2+)] is regarded as an important determinant of cell sensitivity to apoptotic stimuli and was proposed to act as a "priming signal," sensitizing the organelle and promoting the release of pro-apoptotic proteins...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28443047/synchrony-in-joint-action-is-directed-by-each-participant-s-motor-control-system
#17
Lior Noy, Netta Weiser, Jason Friedman
In this work, we ask how the probability of achieving synchrony in joint action is affected by the choice of motion parameters of each individual. We use the mirror game paradigm to study how changes in leader's motion parameters, specifically frequency and peak velocity, affect the probability of entering the state of co-confidence (CC) motion: a dyadic state of synchronized, smooth and co-predictive motions. In order to systematically study this question, we used a one-person version of the mirror game, where the participant mirrored piece-wise rhythmic movements produced by a computer on a graphics tablet...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28443002/to-wait-or-not-to-wait-separate-mechanisms-in-the-oculomotor-circuit-of-basal-ganglia
#18
Masaharu Yasuda, Okihide Hikosaka
We reach a goal immediately after detecting the target, or later by withholding the immediate action. Each time, we choose one of these actions by suppressing the other. How does the brain control these antagonistic actions? We hypothesized that the output of basal ganglia (BG), substantia nigra pars reticulata (SNr), suppresses antagonistic oculomotor signals by sending strong inhibitory output to superior colliculus (SC). To test this hypothesis, we trained monkeys to perform two kinds of saccade task: Immediate (visually guided) and delayed (visually-withheld but memory-guided) saccade tasks...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28442999/roles-of-multiple-globus-pallidus-territories-of-monkeys-and-humans-in-motivation-cognition-and-action-an-anatomical-physiological-and-pathophysiological-review
#19
REVIEW
Yosuke Saga, Eiji Hoshi, Léon Tremblay
The globus pallidus (GP) communicates with widespread cortical areas that support various functions, including motivation, cognition and action. Anatomical tract-tracing studies revealed that the anteroventral GP communicates with the medial prefrontal and orbitofrontal cortices, which are involved in motivational control; the anterodorsal GP communicates with the lateral prefrontal cortex, which is involved in cognitive control; and the posterior GP communicates with the frontal motor cortex, which is involved in action control...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28442952/comparison-of-onset-anesthesia-time-and-injection-discomfort-of-4-articaine-and-2-mepivacaine-during-teeth-extractions
#20
Giath Gazal, Rashdan Alharbi, Wamiq Musheer Fareed, Esam Omar, Albraa Badr Alolayan, Hassan Al-Zoubi, Ahmad A Alnazzawi
OBJECTIVE: To investigate the speed of action and injection discomfort of 4% articaine and 2% mepivacaine for upper teeth extractions. MATERIALS AND METHODS: Forty-five patients were included in the articaine 4% group, and 45 in the mepivacaine 2% control group. After all injections, soft and hard tissue numbness was objectively gauged by dental probe at intervals of 15 s. Furthermore, the discomfort of the injections were recorded by the patients after each treatment on standard 100 mm visual analog scales, tagged at the endpoints with "no pain" (0 mm) and "unbearable pain" (100 mm)...
April 2017: Saudi Journal of Anaesthesia
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