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https://www.readbyqxmd.com/read/28545084/feasibility-study-of-tspo-quantification-with-18f-feppa-using-population-based-input-function
#1
Rostom Mabrouk, Antonio P Strafella, Dunja Knezevic, Christine Ghadery, Romina Mizrahi, Avideh Gharehgazlou, Yuko Koshimori, Sylvain Houle, Pablo Rusjan
PURPOSE: The input function (IF) is a core element in the quantification of Translocator protein 18 kDa with positron emission tomography (PET), as no suitable reference region with negligible binding has been identified. Arterial blood sampling is indeed needed to create the IF (ASIF). In the present manuscript we study individualization of a population based input function (PBIF) with a single arterial manual sample to estimate total distribution volume (VT) for [18F]FEPPA and to replicate previously published clinical studies in which the ASIF was used...
2017: PloS One
https://www.readbyqxmd.com/read/28544421/japan-s-115-year-trend-of-inter-prefectural-disparities-in-under-five-mortality
#2
Chie Nagata, Akinori Moriichi, Naho Morisaki, Ruoyan Gai-Tobe, Akira Ishiguro, Rintaro Mori
BACKGROUND: Child poverty is a growing, serious issue in Japan, where various social disparities are widening. Numerous reports have focused on the relationship between social inequity and health. However, few studies have assessed how the overall magnitude of disparities in child health has changed over the course of drastic social and economic transitions from 1899 to more recent times. In this study, we assessed the trend of the under-five mortality rate (U5MR) and its inter-prefectural disparities in Japan...
May 23, 2017: Pediatrics International: Official Journal of the Japan Pediatric Society
https://www.readbyqxmd.com/read/28544148/structure-and-biosynthesis-of-crocagins-polycyclic-postranslationally-modified-ribosomal-peptides-from-chondromyces-crocatus
#3
Konrad Viehrig, Frank Surup, Carsten Volz, Jennifer Herrmann, Antoine Abou Fayad, Sebastian Adam, Jesko Köhnke, Dirk Trauner, Rolf Müller
Secondary metabolome mining efforts in the myxobacterial multiproducer of natural products, Chondromyces crocatus Cm c5, resulted in the isolation and structure elucidation of crocagins, which are novel polycyclic peptides containing a tetrahydropyrrolo[2,3-b]indole core. The gene cluster was identified through an approach combining genome analysis, targeted gene inactivation in the producer, and in vitro experiments. Based on our findings, we developed a biosynthetic scheme for crocagin biosynthesis. These natural products are formed from the three C-terminal amino acids of a precursor peptide and thus belong to a novel class of ribosomally synthesized and post-translationally modified peptides (RiPPs)...
May 23, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28541807/surgical-site-infection-research-opportunities
#4
Kamal M F Itani, E Patchen Dellinger, John Mazuski, Joseph Solomkin, George Allen, Joan C Blanchard, Rachel Kelz, Sandra I Berríos-Torres
Much has been done to identify measures and modify risk factors to decrease the rate of surgical site infection (SSI). Development of the Centers for Disease Control and Prevention (CDC) Core recommendations for the prevention of SSI revealed evidence gaps in six areas: Parenteral antimicrobial prophylaxis, glycemic control, normothermia, oxygenation, antiseptic prophylaxis, and non-parenteral antimicrobial prophylaxis. Using a modified Delphi process, seven SSI content experts identified nutritional status, smoking, obesity, surgical technique, and anemia as additional areas for SSI prevention research...
May 2017: Surgical Infections
https://www.readbyqxmd.com/read/28540779/planning-optimisation-and-evaluation-of-hyperthermia-treatments
#5
H P Kok, A N T J Kotte, J Crezee
BACKGROUND: Hyperthermia treatment planning using dedicated simulations of power and temperature distributions is very useful to assist in hyperthermia applications. This paper describes an advanced treatment planning software package for a wide variety of applications. METHODS: The in-house developed C++ software package Plan2Heat runs on a Linux operating system. Modules are available to perform electric field and temperature calculations for many heating techniques...
March 8, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28538670/design-and-synthesis-of-dendrimers-with-facile-surface-group-functionalization-and-an-evaluation-of-their-bactericidal-efficacy
#6
Elizabeth Ladd, Amir Sheikhi, Na Li, Theo G M van de Ven, Ashok Kakkar
We report a versatile divergent methodology to construct dendrimers from a tetrafunctional core, utilizing the robust copper(I) catalyzed alkyne-azide cycloaddition (CuAAC, "click") reaction for both dendrimer synthesis and post-synthesis functionalization. Dendrimers of generations 1-3 with 8-32 protected or free OH and acetylene surface groups, were synthesized using building blocks that included acetylene- or azide-terminated molecules with carboxylic acid or diol end groups, respectively. The acetylene surface groups were subsequently used to covalently link cationic amino groups...
May 24, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28537293/formation-and-structures-of-au-rh-bimetallic-nanoclusters-supported-on-a-thin-film-of-al2o3-nial-100
#7
Po-Wei Hsu, Zhen-He Liao, Ting-Chieh Hung, Hsuan Lee, Yu-Cheng Wu, Yu-Ling Lai, Yao-Jane Hsu, Yuwei Lin, Jeng-Han Wang, Meng-Fan Luo
Self-organized alloying of Au with Rh in nanoclusters on an ordered thin film of Al2O3/NiAl(100) was investigated via various surface probe techniques under ultrahigh-vacuum conditions and calculations based on density-functional theory. The bimetallic clusters were formed on the sequential deposition of vapors of Au and Rh onto Al2O3/NiAl(100) at 300 K. The formation was more effective on the oxide seeded with Rh, since all post-deposited Au joined the pregrown Rh clusters; for metal deposition in the reverse order, some separate Rh clusters were formed...
May 24, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28535032/applying-thienyl-side-chains-and-different-%C3%AF-bridge-to-aromatic-side-chain-substituted-indacenodithiophene-based-small-molecule-donors-for-high-performance-organic-solar-cells
#8
Jin-Liang Wang, Kai-Kai Liu, Sha Liu, Feng Liu, Hongbin Wu, Yong Cao, Thomas P Russell
A pair of linear tetrafluorinated small molecular donors, named as ThIDTTh4F and ThIDTSe4F, which are with tetrathienyl-substituted IDT as electron-rich central core, electron-deficient difluorobenzothiadiazole as acceptor units, and donor end-capping groups, but having differences in the π-bridge (thiophene and selenophene), were successfully synthesized and evaluated as donor materials in organic solar cells. Such π-bridge and core units in these small molecules play a decisive role in the formation of the nanoscale separation of the blend films, which were systematically investigated through absorption spectra, grazing incidence X-ray diffraction pattern, transmission electron microscopy images, resonant soft X-ray scattering profiles, and charge mobility measurement...
May 23, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28534874/shifting-brain-inhibitory-balance-and-connectivity-of-the-prefrontal-cortex-of-adults-with-autism-spectrum-disorder
#9
L A Ajram, J Horder, M A Mendez, A Galanopoulos, L P Brennan, R H Wichers, D M Robertson, C M Murphy, J Zinkstok, G Ivin, M Heasman, D Meek, M D Tricklebank, G J Barker, D J Lythgoe, R A E Edden, S C Williams, D G M Murphy, G M McAlonan
Currently, there are no effective pharmacologic treatments for the core symptoms of autism spectrum disorder (ASD). There is, nevertheless, potential for progress. For example, recent evidence suggests that the excitatory (E) glutamate and inhibitory (I) GABA systems may be altered in ASD. However, no prior studies of ASD have examined the 'responsivity' of the E-I system to pharmacologic challenge; or whether E-I modulation alters abnormalities in functional connectivity of brain regions implicated in the disorder...
May 23, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28534683/transfer-from-pediatric-to-adult-endocrinology
#10
Marybeth R Jones, Brett W Robbins, Marilyn Augustine, Jackie Doyle, Jean Mack-Fogg, Heather Jones, Patience H White
OBJECTIVE: Adult and pediatric endocrinologists share responsibility for the transition of youth with type 1 diabetes from pediatric to adult healthcare. This study aimed to increase successful transfers to adult care in subspecialty practices by establishing a systematic healthcare transition (HCT) process. METHODS: Providers from the adult and pediatric endocrinology divisions at the University of Rochester Medical Center (URMC) met monthly to customize and integrate the 6 Core Elements (6CEs) of HCT into clinical workflows...
May 23, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28530344/-suppression-of-a-non-trauma-related-threatening-thought-as-an-avoidance-strategy-in-post-traumatic-stress-disorder-patients
#11
Lilach Abramsky-Arazi, Zeev Kaplan, Hagit Cohen
AIMS: Our goal was to examine how suppression of nontrauma- related thoughts differs between PTSD patients and patients with non-PTSD anxiety disorder compared to a group of matched controls. BACKGROUND: Intrusive recollections of aspects of the traumatic event and its sequelae are at the core of the post-traumatic stress disorder (PTSD). People who have suffered a traumatic event may implement some form of avoidance coping strategies in order to deal with the unwanted memories that accompany them...
December 2016: Harefuah
https://www.readbyqxmd.com/read/28528811/ability-of-a-genomic-classifier-to-predict-metastasis-and-prostate-cancer-specific-mortality-after-radiation-or-surgery-based-on-needle-biopsy-specimens
#12
Paul L Nguyen, Zaid Haddad, Ashley E Ross, Neil E Martin, Samineh Deheshi, Lucia L C Lam, Jijumon Chelliserry, Jeffrey J Tosoian, Tamara L Lotan, Daniel E Spratt, Radka S Stoyanova, Sanoj Punnen, Kaye Ong, Christine Buerki, Maria Aranes, Tyler Kolisnik, Jennifer Margrave, Kasra Yousefi, Voleak Choeurng, Elai Davicioni, Bruce J Trock, Christopher J Kane, Alan Pollack, John W Davis, Felix Y Feng, Eric A Klein
BACKGROUND: Decipher is a validated genomic classifier developed to determine the biological potential for metastasis after radical prostatectomy (RP). OBJECTIVE: To evaluate the ability of biopsy Decipher to predict metastasis and Prostate cancer-specific mortality (PCSM) in primarily intermediate- to high-risk patients treated with RP or radiation therapy (RT). DESIGN, SETTING, AND PARTICIPANTS: Two hundred and thirty-five patients treated with either RP (n=105) or RT±androgen deprivation therapy (n=130) with available genomic expression profiles generated from diagnostic biopsy specimens from seven tertiary referral centers...
May 18, 2017: European Urology
https://www.readbyqxmd.com/read/28527950/the-building-blocks-of-drinking-experience-across-men-and-women-a-case-study-with-craft-and-industrial-beers
#13
Carlos Gómez-Corona, Héctor B Escalona-Buendía, Sylvie Chollet, Dominique Valentin
In today's market, every product seems to be marked by the label of "experience". It is expected that successful products give the consumer "extraordinary experiences". The research in consumption experience is growing, but much work still needs to be done to understand the food and beverage experience. A qualitative study was conducted using contextual focus groups to explore the building blocks of consumers' drinking experience of industrial and craft beers. The results show that drinking experience is shaped by our cognitive, sensory or affective systems, especially during the core consumption experience...
May 17, 2017: Appetite
https://www.readbyqxmd.com/read/28526950/the-effect-of-post-mortem-computed-tomography-angiography-pmcta-using-water-soluble-iodine-based-radiographic-contrast-on-histological-analysis-of-the-liver-kidneys-and-left-ventricle-of-the-heart
#14
Samantha Higgins, Sarah Parsons, Noel Woodford, Matthew Lynch, Christopher Briggs, Chris O'Donnell
The purpose of this study was to investigate the impact of post-mortem computed-tomography angiography (PMCTA) on the histology of the liver, kidneys and heart. Multiple tissue cores were collected from the liver, left and right kidneys and left ventricle utilizing CT-guided biopsy. Subsequent whole body PMCTA was performed using a solution of polyethylene glycol and iodinated radiographic contrast, and an embalming pump. Corresponding biopsy cores were collected at autopsy, and blinded histology analysis assessing for PMCTA-induced histology artefact was performed...
May 20, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28526526/nuclear-weapons-produced-236-u-239-pu-and-240-pu-archived-in-a-porites-lutea-coral-from-enewetak-atoll
#15
M B Froehlich, S G Tims, S J Fallon, A Wallner, L K Fifield
A slice from a Porites Lutea coral core collected inside the Enewetak Atoll lagoon, within 15 km of all major nuclear tests conducted at the atoll, was analysed for (236)U, (239)Pu and (240)Pu over the time interval 1952-1964 using a higher time resolution than previously reported for a parallel slice from the same core. In addition two sediment samples from the Koa and Oak craters were analysed. The strong peaks in the concentrations of (236)U and (239)Pu in the testing years are confirmed to be considerably wider than the flushing time of the lagoon...
May 16, 2017: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/28525836/arterial-spin-labelling-shows-functional-depression-of-non-lesion-tissue-in-chronic-wernicke-s-aphasia
#16
Holly Robson, Karsten Specht, Helen Beaumont, Laura M Parkes, Karen Sage, Matthew A Lambon Ralph, Roland Zahn
Behavioural impairment post-stroke is a consequence of structural damage and altered functional network dynamics. Hypoperfusion of intact neural tissue is frequently observed in acute stroke, indicating reduced functional capacity of regions outside the lesion. However, cerebral blood flow (CBF) is rarely investigated in chronic stroke. This study investigated CBF in individuals with chronic Wernicke's aphasia (WA) and examined the relationship between lesion, CBF and neuropsychological impairment. Arterial spin labelling CBF imaging and structural MRIs were collected in 12 individuals with chronic WA and 13 age-matched control participants...
November 10, 2016: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28525736/a-flick-of-the-tail-keeps-the-circadian-clock-in-line
#17
Rajesh Narasimamurthy, David M Virshup
Circadian clocks signal and adapt to an ever-changing world by juggling a panoply of transcriptional and post-translational modifications. In this issue of Molecular Cell, Gustafson et al. (2017) report an additional requirement for accurate timekeeping, a cis/trans conformational flicker in the transcriptional activation domain of the core clock protein BMAL1.
May 18, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28521211/hepatitis-c-virus-core-antigen-a-simplified-treatment-monitoring-tool-including-for-post-treatment-relapse
#18
François M J Lamoury, Angelica Soker, Danica Martinez, Behzad Hajarizadeh, Evan B Cunningham, Philip Cunningham, Philip Bruggmann, Graham R Foster, Olav Dalgard, Markus Backmund, Brian Conway, Geert Robaeys, Tracy Swan, Gavin Cloherty, Pip Marks, Jason Grebely, Gregory J Dore, Tanya L Applegate
BACKGROUND: Simple, affordable diagnostic tools are essential to facilitate global hepatitis C virus (HCV) elimination efforts. OBJECTIVES: This study evaluated the clinical performance of core antigen (HCVcAg) assay from plasma samples to monitor HCV treatment efficacy and HCV viral recurrence. STUDY DESIGN: Plasma samples from a study of response-guided pegylated-interferon/ribavirin therapy for people who inject drugs with chronic HCV genotype 2/3 infection were assessed for HCV RNA (AmpliPrep/COBAS Taqman assay, Roche) and HCVcAg (ARCHITECT HCV Ag, Abbott Diagnostics) during and after therapy...
May 11, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28520987/proteosign-an-end-user-online-differential-proteomics-statistical-analysis-platform
#19
Georgios Efstathiou, Andreas N Antonakis, Georgios A Pavlopoulos, Theodosios Theodosiou, Peter Divanach, David C Trudgian, Benjamin Thomas, Nikolas Papanikolaou, Michalis Aivaliotis, Oreste Acuto, Ioannis Iliopoulos
Profiling of proteome dynamics is crucial for understanding cellular behavior in response to intrinsic and extrinsic stimuli and maintenance of homeostasis. Over the last 20 years, mass spectrometry (MS) has emerged as the most powerful tool for large-scale identification and characterization of proteins. Bottom-up proteomics, the most common MS-based proteomics approach, has always been challenging in terms of data management, processing, analysis and visualization, with modern instruments capable of producing several gigabytes of data out of a single experiment...
May 17, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28520475/kombucha-multimicrobial-community-under-simulated-spaceflight-and-martian-conditions
#20
O Podolich, I Zaets, O Kukharenko, I Orlovska, O Reva, L Khirunenko, M Sosnin, A Haidak, S Shpylova, E Rabbow, M Skoryk, M Kremenskoy, R Demets, N Kozyrovska, J-P de Vera
Kombucha microbial community (KMC) produces a cellulose-based biopolymer of industrial importance and a probiotic beverage. KMC-derived cellulose-based pellicle film is known as a highly adaptive microbial macrocolony-a stratified community of prokaryotes and eukaryotes. In the framework of the multipurpose international astrobiological project "BIOlogy and Mars Experiment (BIOMEX)," which aims to study the vitality of prokaryotic and eukaryotic organisms and the stability of selected biomarkers in low Earth orbit and in a Mars-like environment, a cellulose polymer structural integrity will be assessed as a biomarker and biotechnological nanomaterial...
May 2017: Astrobiology
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