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https://www.readbyqxmd.com/read/28811547/up-regulation-of-nadph-oxidase-mediated-redox-signaling-contributes-to-the-loss-of-barrier-function-in-krit1-deficient-endothelium
#1
Luca Goitre, Peter V DiStefano, Andrea Moglia, Nicholas Nobiletti, Eva Baldini, Lorenza Trabalzini, Julie Keubel, Eliana Trapani, Vladimir V Shuvaev, Vladimir R Muzykantov, Ingrid H Sarelius, Saverio Francesco Retta, Angela J Glading
The intracellular scaffold KRIT1/CCM1 is an established regulator of vascular barrier function. Loss of KRIT1 leads to decreased microvessel barrier function and to the development of the vascular disorder Cerebral Cavernous Malformation (CCM). However, how loss of KRIT1 causes the subsequent deficit in barrier function remains undefined. Previous studies have shown that loss of KRIT1 increases the production of reactive oxygen species (ROS) and exacerbates vascular permeability triggered by several inflammatory stimuli, but not TNF-α...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28791783/quantitative-susceptibility-mapping-as-a-monitoring-biomarker-in-cerebral-cavernous-malformations-with-recent-hemorrhage
#2
Hussein A Zeineddine, Romuald Girard, Ying Cao, Nicholas Hobson, Maged D Fam, Agnieszka Stadnik, Huan Tan, Jingjing Shen, Kiranj Chaudagar, Robert Shenkar, Richard E Thompson, Nichol McBee, Daniel Hanley, Timothy Carroll, Gregory A Christoforidis, Issam A Awad
BACKGROUND: Quantitative Susceptibility Mapping (QSM) MRI allows accurate assessment of iron content in cerebral cavernous malformations (CCM), and a threshold increase by 6% in QSM has been shown to reflect new symptomatic hemorrhage (SH) in previously stable lesions. PURPOSE/HYPOTHESIS: It is unclear how lesional QSM evolves in CCMs after recent SH, and whether this could serve as a monitoring biomarker in clinical trials aimed at preventing rebleeding in these lesions...
August 9, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28780704/regulatory-components-of-carbon-concentrating-mechanisms-in-aquatic-unicellular-photosynthetic-organisms
#3
REVIEW
Vandana Tomar, Gurpreet Kaur Sidhu, Panchsheela Nogia, Rajesh Mehrotra, Sandhya Mehrotra
This review provides an insight into the regulation of the carbon concentrating mechanisms (CCMs) in lower organisms like cyanobacteria, proteobacteria, and algae. CCMs evolved as a mechanism to concentrate CO2 at the site of primary carboxylating enzyme Ribulose-1, 5-bisphosphate carboxylase oxygenase (Rubisco), so that the enzyme could overcome its affinity towards O2 which leads to wasteful processes like photorespiration. A diverse set of CCMs exist in nature, i.e., carboxysomes in cyanobacteria and proteobacteria; pyrenoids in algae and diatoms, the C4 system, and Crassulacean acid metabolism in higher plants...
August 5, 2017: Plant Cell Reports
https://www.readbyqxmd.com/read/28780607/strategies-to-identify-and-reduce-opioid-misuse-among-patients-with-gastrointestinal-disorders-a-systematic-scoping-review
#4
REVIEW
Salva N Balbale, Itishree Trivedi, Linda C O'Dwyer, Megan C McHugh, Charlesnika T Evans, Neil Jordan, Laurie A Keefer
BACKGROUND: Scoping reviews are preliminary assessments intended to characterize the extent and nature of emerging research evidence, identify literature gaps, and offer directions for future research. We conducted a systematic scoping review to describe published scientific literature on strategies to identify and reduce opioid misuse among patients with gastrointestinal (GI) symptoms and disorders. METHODS: We performed structured keyword searches to identify manuscripts published through June 2016 in the PubMed MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, Scopus, and Web of Science databases to extract original research articles that described healthcare practices, tools, or interventions to identify and reduce opioid misuse among GI patients...
August 5, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28771812/the-role-of-external-carbonic-anhydrase-in-photosynthesis-during-growth-of-the-marine-diatom-chaetoceros-muelleri
#5
Tamsyne Jade Smith-Harding, John Beardall, James Gordon Mitchell
Carbon dioxide concentrating mechanisms (CCMs) act to improve the supply of CO2 at the active site of ribulose-1,5-bisphosphate carboxylase/oxygenase (RUBISCO). There is substantial evidence that in some microalgal species CCMs involve an external carbonic anhydrase (CAext ) and that CAext activity is induced by low CO2 concentrations in the growth medium. However, much of this work has been conducted on cells adapted to air-equilibrium concentrations of CO2 , rather than to changing CO2 conditions caused by growing microalgal populations...
August 3, 2017: Journal of Phycology
https://www.readbyqxmd.com/read/28771123/pedobacter-psychrophilus-sp-nov-isolated-from-fragmentary-rock
#6
Pavel Švec, Stanislava Králová, Hans-Jürgen Busse, Tanita Kleinhagauer, Kamila Kýrová, Roman Pantůček, Ivana Mašlaňová, Eva Staňková, Miroslav Němec, Pavla Holochová, Miloš Barták, Ivo Sedláček
Strain P4487AT was isolated during investigation of cultivable bacterial populations of environmental materials sampled at James Ross Island, Antarctica. It revealed Gram-stain-negative short rod-shaped cells producing a pink pigment. Phylogenetic analysis based on 16S rRNA gene sequences allocated strain P4487AT to the genus Pedobacter but showed that the strain represents a distinct intrageneric phylogenetic lineage clearly separated from remaining Pedobacter species. Phylogenetically, strain P4487AT formed a common branch with the Pedobacter arcticus and Pedobacter lignilitoris cluster while the highest value of 94...
August 4, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28763500/child-contact-management-in-high-tuberculosis-burden-countries-a-mixed-methods-systematic-review
#7
Daria Szkwarko, Yael Hirsch-Moverman, Lienki Du Plessis, Karen Du Preez, Catherine Carr, Anna M Mandalakas
Tuberculosis (TB) remains a leading cause of morbidity and mortality worldwide. Considering the World Health Organization recommendation to implement child contact management (CCM) for TB, we conducted a mixed-methods systematic review to summarize CCM implementation, challenges, predictors, and recommendations. We searched the electronic databases of PubMed/MEDLINE, Scopus, and Web of Science for studies published between 1996-2017 that reported CCM data from high TB-burden countries. Protocol details for this systematic review were registered on PROSPERO: International prospective register of systematic reviews (#CRD42016038105)...
2017: PloS One
https://www.readbyqxmd.com/read/28755097/provider-experiences-with-chronic-care-management-ccm-services-and-fees-a-qualitative-research-study
#8
Ann S O'Malley, Rumin Sarwar, Rosalind Keith, Patrick Balke, Sai Ma, Nancy McCall
BACKGROUND: Support for ongoing care management and coordination between office visits for patients with multiple chronic conditions has been inadequate. In January 2015, Medicare introduced the Chronic Care Management (CCM) payment policy, which reimburses providers for CCM activities for Medicare beneficiaries occurring outside of office visits. OBJECTIVE: To explore the experiences, facilitators, and challenges of practices providing CCM services, and their implications going forward...
July 28, 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28752834/individual-and-social-variables-and-their-effect-on-case-care-manager-job-satisfaction-an-exploratory-study
#9
Chiara Cosentino, Morena Bettuzzi, Giulia Campioli, Valeria Di Marco, Giulia Giacopuzzi, Ivana Marinoni, Lorenzo Orlandini, Angelo Palermo, Siria Pattacini, Giovanna Artioli
BACKGROUND AND AIMS: The Case/Care Manager (CCM) is a new position for in the Italian National Health Service scenario. Job satisfaction plays a key role for the CCM to engage in his work, accomplishing it in a complete. Nurses' job satisfaction is a complex construct and many different variables can influence it: personal characteristics, cultural characteristic, social characteristic, organizational characteristic, and environmental characteristic. The main aim of this study is to assess the job satisfaction in a sample of CCM and to assess if and how Social Variables (organizational climate and health) and Individual (socio-demographic variables, coping strategies, emotion regulation) relate to the CCM job satisfaction...
July 18, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28746026/complementary-and-alternative-medicine-in-an-integrated-health-care-delivery-system-users-of-chiropractic-acupuncture-and-massage-services
#10
Tracy Mccubbin, Karin L Kempe, Arne Beck
INTRODUCTION: Complementary and alternative medicine research has relied primarily on survey data from community populations rather than from patient populations receiving these services in integrated health care delivery systems (IHDS). OBJECTIVES: To describe patients seeking chiropractic, acupuncture, or massage therapy in a dedicated Center for Complementary Medicine (CCM) within an IHDS. METHODS: Patient surveys at the initial CCM visit included chief complaint, prior treatments, and relief with treatment (0% to 100% relief)...
2017: Permanente Journal
https://www.readbyqxmd.com/read/28745674/-gene-mutations-in-patients-with-hereditary-cavernous-malformations
#11
O B Belousova, E S Bulygina, D N Okishev, E B Prohorchuk, S V Tsygankova, I N Pronin, L V Shishkina, M V Ryzhova, K G Skryabin, A N Konovalov
AIM: To identify mutations in cerebral cavernous malformation (CCM) genes in patients with hereditary and sporadic CCMs in the Russian population. MATERIAL AND METHODS: Blood samples from 73 randomly selected patients, including 29 MRI-confirmed familial cases, 8 clinically confirmed familial cases and 38 so-called sporadic cases, were examined. A search for large deletions/duplications was performed using multiplex ligation-dependent probe amplification (MPLA)...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28742007/galliscardovia-ingluviei-gen-nov-sp-nov-a-thermophilic-bacterium-of-the-family-bifidobacteriaceae-isolated-from-the-crop-of-a-laying-hen-gallus-gallus-f-domestica
#12
R Pechar, J Killer, R Švejstil, H Salmonová, M Geigerová, V Bunešová, V Rada, O Benada
Bacteria with potential probiotic applications are not yet sufficiently explored, even for animals with economic importance. Therefore, we decided to isolate and identify representatives of the family Bifidobacteriaceae, which inhabit the crop of laying hens. During the study, a fructose-6-phosphate phosphoketolase-positive strain, RP51T, with a regular/slightly irregular and sometimes an S-shaped slightly curved rod-like shape, was isolated from the crop of a 13 -month-old Hisex Brown hybrid laying hen. The best growth of the Gram-stain-positive bacterium, which was isolated using Bifidobacterium-selective mTPY agar, was found out to be under strictly anaerobic conditions, however an ability to grow under microaerophilic and aerobic conditions was also observed...
July 21, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28741902/corneal-confocal-sub-basal-nerve-plexus-evaluation-a-review
#13
REVIEW
Joanna Kokot, Adam Wylęgała, Bogumił Wowra, Łukasz Wójcik, Dariusz Dobrowolski, Edward Wylęgała
The aim of this study was to review the most recent data about corneal sub-basal nerve plexus (SNP) evaluated with the use of corneal confocal microscopy (CCM). For this purpose, an electronic search was conducted based on PubMed and Google Scholar and Web of Science databases from 2008 up to the end of 2016. Ninety-eight articles in English were cited, as well as abstracts in other languages, concerning the morphology and function of corneal SNP in various diseases. Changes in corneal SNP as a result of local treatment were also introduced...
July 25, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28737826/comparison-of-isolation-methods-of-exosomes-and-exosomal-rna-from-cell-culture-medium-and-serum
#14
Yue-Ting Tang, Yi-Yao Huang, Lei Zheng, Si-Hua Qin, Xu-Ping Xu, Tai-Xue An, Yong Xu, Ying-Song Wu, Xiu-Mei Hu, Bao-Hong Ping, Qian Wang
Exosomes are cell-derived vesicles and are abundant in biological fluids; they contain RNA molecules which may serve as potential diagnostic biomarkers in 'precision medicine'. To promote the clinical application of exosomal RNA (exoRNA), many isolation methods must be compared and validated. Exosomes in cell culture medium (CCM) and serum may be isolated using ultracentrifugation (UC), ExoQuick or Total Exosome Isolation Reagent (TEI), and exoRNA may be extracted using TRIzol-LS, SeraMir, Total Exosome RNA Isolation (TER), HiPure Liquid RNA/miRNA kit (HLR), miRNeasy or exoRNeasy...
September 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28736459/final-report-on-the-key-comparison-ccm-p-k15-in-the-pressure-range-from-1-0-%C3%A3-10-4-pa-to-1-0-pa
#15
Christian Wuethrich, Kenta Arai, Mercede Bergoglio, James A Fedchak, Karl Jousten, Seung Soo Hong, Jorge Torres Guzman
The comparison CCM.P-K15 is a key comparison in pressure involving six laboratories in three regional metrological organizations (RMO). The measurand of the comparison is the accommodation coefficient of two spinning rotating gauge characterized in nitrogen from 0.1 mPa up to 1.0 Pa. The two transfer standards were circulated from November 2009 until March 2011. The circulation consisted of three loops, one for each RMO, and a new calibration by the pilot between each loop. The stability of one of the transfer standards was poor and was worse than expected based on the previous history of the transfer standard while the other transfer standard demonstrated good stability while circulated in Europe and America and a fair stability while circulated in Asia...
2017: Metrologia
https://www.readbyqxmd.com/read/28736261/genetic-disruption-of-the-cardiomyocyte-circadian-clock-differentially-influences-insulin-mediated-processes-in-the-heart
#16
Graham R McGinnis, Yawen Tang, Rachel A Brewer, Manoja K Brahma, Haley L Stanley, Gobinath Shanmugam, Namakkal Soorappan Rajasekaran, Glenn C Rowe, Stuart J Frank, Adam R Wende, E Dale Abel, Heinrich Taegtmeyer, Silvio Litovsky, Victor Darley-Usmar, Jianhua Zhang, John C Chatham, Martin E Young
Cardiovascular physiology exhibits time-of-day-dependent oscillations, which are mediated by both extrinsic (e.g., environment/behavior) and intrinsic (e.g., circadian clock) factors. Disruption of circadian rhythms negatively affects multiple cardiometabolic parameters. Recent studies suggest that the cardiomyocyte circadian clock directly modulates responsiveness of the heart to metabolic stimuli (e.g., fatty acids) and stresses (e.g., ischemia/reperfusion). The aim of this study was to determine whether genetic disruption of the cardiomyocyte circadian clock impacts insulin-regulated pathways in the heart...
July 20, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28735645/psychiatric-consultation-in-the-collaborative-care-model-the-bipolar-sieve-effect
#17
James R Phelps, James James
Around the world, psychiatrists are in exceptionally short supply. The majority of mental health treatment is delivered in primary care. In the United States, the Collaborative Care Model (CCM) addresses the shortfall of psychiatrists by providing indirect consultation in primary care. A Cochrane meta-analysis affirms the efficacy this model for depression and anxiety. However, our experience with the CCM suggests that most patients referred for consultation have problems far more complex than simple depression and anxiety...
August 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28731528/improving-succinate-productivity-by-engineering-a-cyanobacterial-co2-concentrating-system-ccm-in-escherichia-coli
#18
Mengyong Xiao, Xinna Zhu, Changhao Bi, Yanhe Ma, Xueli Zhang
Biologically fixation of CO2 has great potential as a significant carbon source for biosynthesis, which is also a major way to reduce CO2 accumulation in atmosphere. Phosphoenolpyruvate (PEP) carboxylation is the key step of anaerobic succinate production in Escherichia coli. In this reaction, one mole CO2 is assimilated with PEP to form oxaloacetate by PEP carboxykinase (PCK). The preferred substrate of PCK is CO2 , which is very limited in cytoplasm. In this study, the carbon concentration mechanism (CCM) of cyanobacteria was introduced into E...
July 21, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28731396/contralateral-posterior-interhemispheric-approach-to-deep-medial-parietooccipital-vascular-malformations-surgical-technique-and-results
#19
Jan-Karl Burkhardt, Ethan A Winkler, Michael T Lawton
OBJECTIVE Deep medial parietooccipital arteriovenous malformations (AVMs) and cerebral cavernous malformations (CCMs) are traditionally resected through an ipsilateral posterior interhemispheric approach (IPIA), which creates a deep, perpendicular perspective with limited access to the lateral margins of the lesion. The contralateral posterior interhemispheric approach (CPIA) flips the positioning, with the midline positioned horizontally for retraction due to gravity, but with the AVM on the upper side and the approach from the contralateral, lower side...
July 21, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28727882/corneal-confocal-microscopy-an-imaging-endpoint-for-axonal-degeneration-in-multiple-sclerosis
#20
Ioannis N Petropoulos, Saadat Kamran, Yi Li, Adnan Khan, Georgios Ponirakis, Naveed Akhtar, Dirk Deleu, Ashfaq Shuaib, Rayaz A Malik
Purpose: To evaluate whether corneal confocal microscopy (CCM) detects axonal degeneration and whether this is associated with retinal nerve fiber degeneration and clinical disability in patients with multiple sclerosis (MS). Methods: Twenty-five patients with MS and 25 healthy control subjects underwent CCM, optical coherence tomography (OCT), and assessment of neurological disability using the expanded disability status scale (EDSS) and MS severity score (MSSS)...
July 1, 2017: Investigative Ophthalmology & Visual Science
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