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https://www.readbyqxmd.com/read/29054108/increase-in-pro-apoptotic-activity-of-inhibitory-pas-domain-protein-via-phosphorylation-by-mk2
#1
Shuya Kasai, Mary Jane Elizabeth Richardson, Satoru Torii, Ken-Ichi Yasumoto, Hiroki Shima, Kazuhiko Igarashi, Ken Itoh, Kazuhiro Sogawa, Kazutaka Murayama
Inhibitory PAS domain protein (IPAS) is a bifunctional protein that downregulates hypoxic gene expression and exerts pro-apoptotic activity by preventing pro-survival activity of Bcl-xL and its related factors. Pro-apoptotic activity of IPAS is attenuated by the activation of the PINK1-Parkin pathway, and involved in neuronal degeneration in an experimental mouse model of Parkinson's disease. The current study shows that phosphorylation of IPAS at Ser184 by MAPK-activated protein kinase 2 (MK2 or MAPKAPK2) enhances the pro-apoptotic function of IPAS...
October 20, 2017: FEBS Journal
https://www.readbyqxmd.com/read/29053568/mutation-of-a-conserved-nuclear-export-sequence-in-chikungunya-virus-capsid-protein-disrupts-host-cell-nuclear-import
#2
Susan C Jacobs, Adam Taylor, Lara J Herrero, Suresh Mahalingam, John K Fazakerley
Transmitted by mosquitoes; chikungunya virus (CHIKV) is responsible for frequent outbreaks of arthritic disease in humans. CHIKV is an arthritogenic alphavirus of the Togaviridae family. Capsid protein, a structural protein encoded by the CHIKV RNA genome, is able to translocate to the host cell nucleus. In encephalitic alphaviruses nuclear translocation induces host cell shut off; however, the role of capsid protein nuclear localisation in arthritogenic alphaviruses remains unclear. Using replicon systems, we investigated a nuclear export sequence (NES) in the N-terminal region of capsid protein; analogous to that found in encephalitic alphavirus capsid but uncharacterised in CHIKV...
October 20, 2017: Viruses
https://www.readbyqxmd.com/read/29053210/a-combination-of-mtap-and-bap1-immunohistochemistry-in-pleural-effusion-cytology-for-the-diagnosis-of-mesothelioma
#3
Yoshiaki Kinoshita, Tomoyuki Hida, Makoto Hamasaki, Shinji Matsumoto, Ayuko Sato, Tohru Tsujimura, Kunimitsu Kawahara, Kenzo Hiroshima, Yoshinao Oda, Kazuki Nabeshima
BACKGROUND: Homozygous deletion of 9p21 detected by fluorescence in situ hybridization (FISH) and loss of BRCA1-associated protein 1 (BAP1) expression detected by immunohistochemistry (IHC) are useful for the differentiation between malignant pleural mesothelioma (MPM) and reactive mesothelial hyperplasia. The authors previously described that IHC expression of the protein product of the methylthioadenosine phosphorylase (MTAP) gene, which is localized in the 9p21 chromosomal region, was correlated with the deletion status of 9p21 FISH in MPM tissues...
October 20, 2017: Cancer
https://www.readbyqxmd.com/read/29051533/microtome-integrated-microscope-system-for-high-sensitivity-tracking-of-in-resin-fluorescence-in-blocks-and-ultrathin-sections-for-correlative-microscopy
#4
Nicolas Lemercier, Volker Middel, Didier Hentsch, Serge Taubert, Masanari Takamiya, Tanja Beil, Jean-Luc Vonesch, Tilo Baumbach, Patrick Schultz, Claude Antony, Uwe Strähle
Many areas of biological research demand the combined use of different imaging modalities to cover a wide range of magnifications and measurements or to place fluorescent patterns into an ultrastructural context. A technically difficult problem is the efficient specimen transfer between different imaging modalities without losing the coordinates of the regions-of-interest (ROI). Here, we report a new and highly sensitive integrated system that combines a custom designed microscope with an ultramicrotome for in-resin-fluorescence detection in blocks, ribbons and sections on EM-grids...
October 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29050222/beneficial-effect-of-fluoxetine-treatment-aganist-psychological-stress-is-mediated-by-increasing-bdnf-expression-in-selected-brain-areas
#5
Gongying Li, Ping Jing, Zhidong Liu, Zhiruo Li, Hongxia Ma, Wenzhen Tu, Wei Zhang, Chuanjun Zhuo
SSRI antidepressant fluoxetine is widely used to treat psychological stress related disorders, however the underlying working mechanisms is not fully understood, as SSRIs can rapidly increase the extracellular serotonin levels but it normally takes weeks to reveal their therapeutic effect in the stress-related psychological disorders. Our previous study demonstrated that purely psychological stress without any physic stimuli induces a biphasic change in the expression of brain-derived neurotrophic factor (BDNF), which immediately decrease and then gradually increase after the stress; and that the latter BDNF increase in response to the psychological stress involves the activation of serotonin system...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049119/a-review-of-opioid-sparing-modalities-in-perioperative-pain-management-methods-to-decrease-opioid-use-postoperatively
#6
Kanupriya Kumar, Meghan A Kirksey, Silvia Duong, Christopher L Wu
There is an epidemic of opioid use, abuse, and misuse in the United States, which results in significant morbidity and mortality. It may be difficult to reduce perioperative opioid use given known acute surgical trauma and resultant pain; however, the discrete and often limited nature of postoperative pain also may make management easier in part by utilizing nonopioid modalities, such as regional anesthesia/analgesia, and multimodal analgesia, which may decrease the need for powerful opioids. This article reviews the relevant literature describing the use of adjunct medications, regional anesthesia and analgesic techniques, and regional block additives in the context of providing adequate pain control while lessening opioid use...
November 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29049072/effect-of-stellate-ganglion-block-on-the-regional-hemodynamics-of-the-upper-extremity-a-randomized-controlled-trial
#7
Min Kyoung Kim, Myung Sub Yi, Pyung Gul Park, Hyun Kang, Jae Sung Lee, Hwa Yong Shin
BACKGROUND: The success of stellate ganglion block (SGB) is traditionally determined on the basis of findings such as Horner's syndrome, temperature rise in the face, hyperemia of the tympanic membrane, and nasal congestion. However, decreases in vascular resistance and increases in blood flow in the arm may be more meaningful findings. To date, the effect of SGB on the regional hemodynamics of the arm has not been evaluated using pulsed-wave Doppler ultrasound. METHODS: A total of 52 patients who were to undergo orthopedic surgery of the forearm were randomly assigned to either the mepivacaine group (SGB with 5 mL of 0...
October 17, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29047233/overexpression-of-mir-191-predicts-poor-prognosis-and-promotes-proliferation-and-invasion-in-esophageal-squamous-cell-carcinoma
#8
Xiaotian Gao, Zhanqiang Xie, Zhigang Wang, Keluo Cheng, Ke Liang, Zeqing Song
PURPOSE: Accumulating evidence has shown that dysregulation of microRNA-191 (miR-191) is closely associated with tumorigenesis and progression in a wide range of cancers. This study aimed to explore the potential role of miR-191 in esophageal squamous cell carcinoma (ESCC). MATERIALS AND METHODS: miR-191 expression was assessed in 93 ESCC tissue specimens by real-time polymerase chain reaction, and survival analysis was performed via Kaplan-Meier and Cox regression analyses...
November 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/29046933/-regional-anesthesia-are-the-standards-changing
#9
REVIEW
T Volk, C Kubulus
Regional anesthesia has undergone many changes over the years and the increasing use of ultrasound has certainly played an important role in this. Apart from individual case reports in the literature of very different blocking options, some new procedures seem to have become established and can be broadly applied. Among these are blockades, by which ultrasound-guided injection of local anesthetics is carried out in fascial or muscular layers rather than around target nerves (e.g. cervical plexus blocks and truncal blocks)...
October 18, 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/29046888/imaging-sex-differences-in-regional-brain-metabolism-during-acute-opioid-withdrawal
#10
Giovanni C Santoro, Joseph Carrion, Stephen L Dewey
The rate of opioid overdose continues to rise, necessitating improved treatment options. Current therapeutic approaches rely on administration of either a blocking agent, such as naloxone, or chronic treatment with replacement drugs, including methadone and/or buprenorphine. Recent findings suggest that males and females respond to these treatments uniquely. In an effort to better understand this sex-specific variation in treatment efficacy, we investigated the effects of acute opioid withdrawal in male and female rats using 18FDG and microPET...
April 2017: Journal of Alcoholism and Drug Dependence
https://www.readbyqxmd.com/read/29046425/carotid-chemoreceptors-tune-breathing-via-multipath-routing-reticular-chain-and-loop-operations-supported-by-parallel-spike-train-correlations
#11
Kendall F Morris, Sarah C Nuding, Lauren S Segers, Kimberly Erin Iceman, Russell O'Connor, Jay B Dean, Mackenzie M Ott, Pierina A Alencar, Dale Shuman, Kofi-Kermit Horton, Thomas E Taylor-Clark, Donald C Bolser, Bruce G Lindsey
We tested the hypothesis that carotid chemoreceptors tune breathing through parallel circuit paths that target distinct elements of an inspiratory neuron chain in the ventral respiratory column (VRC). Microelectrode arrays were used to monitor neuronal spike trains simultaneously in the VRC, peri-nucleus tractus solitarius-medial medulla (p-NTS-MM), the dorsal parafacial region of the lateral tegmental field (FTL-pF), and medullary raphé nuclei together with phrenic nerve activity during selective stimulation of carotid chemoreceptors or transient hypoxia in 19 decerebrate, neuromuscularly-blocked, and artificially ventilated cats...
October 18, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29044559/discovery-and-characterization-of-novel-trans-spliced-products-of-human-polyoma-jc-virus-late-transcripts-from-pml-patients
#12
A Sami Saribas, Julia DeVoto, Akhil Golla, Hassen S Wollebo, Martyn K White, Mahmut Safak
Although the human neurotropic polyomavirus, JC virus (JCV), was isolated almost a half century ago, understanding the molecular mechanisms governing its biology remains highly elusive. JCV infects oligodendrocytes and astrocytes in the central nervous system (CNS) and causes a fatal brain disease known as progressive multifocal leukoencephalopathy (PML) in immunocompromised individuals including AIDS. It has a small circular DNA genome (∼ 5 kb) and generates two primary transcripts from its early and late coding regions, producing several predicted alternatively spliced products mainly by cis-splicing...
October 16, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29044111/elevated-olivine-weathering-rates-and-sulfate-formation-at-cryogenic-temperatures-on-mars
#13
Paul B Niles, Joseph Michalski, Douglas W Ming, D C Golden
Large Hesperian-aged (~3.7 Ga) layered deposits of sulfate-rich sediments in the equatorial regions of Mars have been suggested to be evidence for ephemeral playa environments. But early Mars may not have been warm enough to support conditions similar to what occurs in arid environments on Earth. Instead cold, icy environments may have been widespread. Under cryogenic conditions sulfate formation might be blocked, since kinetics of silicate weathering are typically strongly retarded at temperatures well below 0 °C...
October 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/29043600/effects-of-ultrasound-guided-stellate-ganglion-block-on-sleep-and-regional-cerebral-oxygen-saturation-in-patients-undergoing-breast-cancer-surgery-a-randomized-controlled-double-blinded-trial
#14
Feng Jin, Xiao-Qian Li, Wen-Fei Tan, Hong Ma, Bo Fang, A-Yong Tian, Huang-Wei Lu
Numerous factors could contribute to sleep disturbances in women with breast cancer. We hypothesized that stellate ganglion block (SGB) during surgery would preserve sleep after surgery and increase intraoperative regional cerebral oxygen saturation (rSO2) on the blocked side in patients undergoing breast cancer surgery. A randomized, double-blinded, controlled trial was conducted at the First Hospital of China Medical University from January 2016 to September 2016. Ninety-six patients who underwent radical breast cancer surgery requiring general anaesthesia were randomly assigned to one of two study groups: a control group that received a saline SGB and a block group that received a 0...
October 17, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29042063/-pharmacokinetic-and-clinical-effects-of-two-bupivacaine-concentrations-on-axillary-brachial-plexus-block
#15
Leonardo H C Ferraro, Alexandre Takeda, Cleber N Barreto, Bernadete Faria, Nilson A Assunção
INTRODUCTION: The risk of systemic bupivacaine toxicity is a persistent problem, which makes its pharmacokinetic study fundamental for regional anesthesia safety. There is little evidence of its influence on plasma peak at different concentrations. The present study compares two bupivacaine concentrations to establish how the concentration affects this drug plasma peak in axillary brachial plexus block. Postoperative latency and analgesia were also compared. METHODS: 30 patients were randomized...
October 14, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/29041903/imputation-of-missing-genotypes-within-ld-blocks-relying-on-the-basic-coalescent-and-beyond-consideration-of-population-growth-and-structure
#16
Maria Kabisch, Ute Hamann, Justo Lorenzo Bermejo
BACKGROUND: Genotypes not directly measured in genetic studies are often imputed to improve statistical power and to increase mapping resolution. The accuracy of standard imputation techniques strongly depends on the similarity of linkage disequilibrium (LD) patterns in the study and reference populations. Here we develop a novel approach for genotype imputation in low-recombination regions that relies on the coalescent and permits to explicitly account for population demographic factors...
October 17, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29041106/design-of-a-broadband-reciprocal-optical-diode-in-a-silicon-waveguide-assisted-by-silver-surface-plasmonic-splitter
#17
Jing Li, Han Ye, Zhongyuan Yu, Yumin Liu
In this paper, we propose a new scheme for a reciprocal optical diode integrated in a multimode silicon waveguide. The compact 4μm long functional region consists of a tapered coupler, a narrow single-mode waveguide, and a half-elliptical silver surface plasmonic splitter with refractive index modification of silicon. This spatial asymmetric design achieves even-to-odd mode conversion in the forward direction and blocks propagation of the even mode in the backward direction. The maximum contrast ratio and forward transmission efficiency reach approximately 0...
August 7, 2017: Optics Express
https://www.readbyqxmd.com/read/29040460/effect-of-different-masticatory-functional-demands-on-the-3d-mandibular-condyle-morphology-of-growing-rats-using-posterior-bite-blocks
#18
Balazs J Denes, Benjamin Lazzarotto, Andrea Bresin, Stavros Kiliaridis
Background and objectives: Apart from the primary effect of bite-blocks on tooth position, they may also influence the mandibular condylar growth. Our aim was to investigate their influence on the condylar morphology, with variable masticatory forces. Material and methods: Fifty-two 4-week old male rats were divided into hard and soft diet groups in order to create individuals with different masticatory muscle capacity. Two weeks later, they were equally divided into bite-block and control groups...
October 11, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/29039282/spatial-variation-of-pneumonia-hospitalization-risk-in-twin-cities-metro-area-minnesota
#19
P Y Iroh Tam, B Krzyzanowski, J M Oakes, L Kne, S Manson
Fine resolution spatial variability in pneumonia hospitalization may identify correlates with socioeconomic, demographic and environmental factors. We performed a retrospective study within the Fairview Health System network of Minnesota. Patients 2 months of age and older hospitalized with pneumonia between 2011 and 2015 were geocoded to their census block group, and pneumonia hospitalization risk was analyzed in relation to socioeconomic, demographic and environmental factors. Spatial analyses were performed using Esri's ArcGIS software, and multivariate Poisson regression was used...
October 17, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/29037799/thermography-as-an-early-predictive-measurement-for-evaluating-epidural-and-femoral-sciatic-block-success-in-dogs
#20
Nina Küls, Karen J Blissitt, Darren J Shaw, Gudrun Schöffmann, Richard E Clutton
OBJECTIVE: To evaluate skin temperature increase as an early predictive measure for evaluating epidural and femoral-sciatic block success in dogs. STUDY DESIGN: Prospective clinical trial. ANIMALS: A total of 29 dogs undergoing orthopaedic surgery on one hindlimb. METHODS: Dogs were anaesthetized and placed into lateral recumbency with the affected limb uppermost and the coat was clipped. Baseline infrared thermographic images (T0) of the affected limb, of the paw pad of the affected leg and of the ipsilateral paw pad were taken...
March 25, 2017: Veterinary Anaesthesia and Analgesia
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