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https://www.readbyqxmd.com/read/28820618/college-women-s-responses-to-a-celebrity-health-disclosure
#1
Julia H Drizin, Vanessa L Malcarne, Melody K Schiaffino, Kristen J Wells
Celebrities can have a powerful influence on people's health-related attitudes and behaviors, often by publicly disclosing their own personal health decisions. In May 2013, Angelina Jolie, an internationally recognized actress, director, and author, wrote an op-ed for the New York Times disclosing her decision to undergo a prophylactic double mastectomy to reduce her risk of breast cancer after learning that she carried the BRCA1 gene mutation. This cross-sectional study examined whether exposure to Angelina Jolie and her mastectomy disclosure and parasocial involvement (PSI) with Angelina Jolie were related to female college students' perceived risk of breast cancer and breast cancer screening intentions...
August 18, 2017: Health Communication
https://www.readbyqxmd.com/read/28816929/effectiveness-and-value-of-prophylactic-5-layer-foam-sacral-dressings-to-prevent-hospital-acquired-pressure-injuries-in-acute-care-hospitals-an-observational-cohort-study
#2
William V Padula
PURPOSE: The purpose of this study was to examine the effectiveness and value of prophylactic 5-layer foam sacral dressings to prevent hospital-acquired pressure injury rates in acute care settings. DESIGN: Retrospective observational cohort. SAMPLE AND SETTING: We reviewed records of adult patients 18 years or older who were hospitalized at least 5 days across 38 acute care hospitals of the University Health System Consortium (UHC) and had a pressure injury as identified by Patient Safety Indicator #3 (PSI-03)...
August 15, 2017: Journal of Wound, Ostomy, and Continence Nursing
https://www.readbyqxmd.com/read/28815613/switching-off-photoprotection-of-photosystem-i-a-novel-tool-for-gradual-psi-photoinhibition
#3
Mikko Tikkanen, Steffen Grebe
Photosystem I (PSI) has evolved in anaerobic atmosphere conditions and until today remains susceptible to oxygen. To minimize the probability of damaging side reactions, plants have evolved sophisticated mechanisms to control electron transfer, and PSI becomes inhibited only when malfunctions of these regulatory mechanisms occur. Due to the complicated induction of PSI photoinhibition, a detailed investigation of the process and following reactions are still largely missing. Here we introduce the theoretical framework and a novel method for an easy and controlled induction of PSI photoinhibition in vivo...
August 16, 2017: Physiologia Plantarum
https://www.readbyqxmd.com/read/28814753/the-psi-yeast-prion-does-not-wildly-affect-proteome-composition-whereas-selective-pressure-exerted-on-psi-cells-can-promote-aneuploidy
#4
Patrick H W Chan, Lisa Lee, Erin Kim, Tony Hui, Nikolay Stoynov, Roy Nassar, Michelle Moksa, Dale M Cameron, Martin Hirst, Joerg Gsponer, Thibault Mayor
The yeast Sup35 protein is a subunit of the translation termination factor, and its conversion to the [PSI (+)] prion state leads to more translational read-through. Although extensive studies have been done on [PSI (+)], changes at the proteomic level have not been performed exhaustively. We therefore used a SILAC-based quantitative mass spectrometry approach and identified 4187 proteins from both [psi (-)] and [PSI (+)] strains. Surprisingly, there was very little difference between the two proteomes under standard growth conditions...
August 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808104/interaction-between-photosynthetic-electron-transport-and-chloroplast-sinks-triggers-protection-and-signalling-important-for-plant-productivity
#5
Peter J Gollan, Yugo Lima-Melo, Arjun Tiwari, Mikko Tikkanen, Eva-Mari Aro
The photosynthetic light reactions provide energy that is consumed and stored in electron sinks, the products of photosynthesis. A balance between light reactions and electron consumption in the chloroplast is vital for plants, and is protected by several photosynthetic regulation mechanisms. Photosystem I (PSI) is particularly susceptible to photoinhibition when these factors become unbalanced, which can occur in low temperatures or in high light. In this study we used the pgr5 Arabidopsis mutant that lacks ΔpH-dependent regulation of photosynthetic electron transport as a model to study the consequences of PSI photoinhibition under high light...
September 26, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28808098/overexpression-of-plastid-terminal-oxidase-in-synechocystis-sp-pcc-6803-alters-cellular-redox-state
#6
Kathleen Feilke, Ghada Ajlani, Anja Krieger-Liszkay
Cyanobacteria are the most ancient organisms performing oxygenic photosynthesis, and they are the ancestors of plant plastids. All plastids contain the plastid terminal oxidase (PTOX), while only certain cyanobacteria contain PTOX. Many putative functions have been discussed for PTOX in higher plants including a photoprotective role during abiotic stresses like high light, salinity and extreme temperatures. Since PTOX oxidizes PQH2 and reduces oxygen to water, it is thought to protect against photo-oxidative damage by removing excess electrons from the plastoquinone (PQ) pool...
September 26, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28805234/prognostic-factors-for-mortality-due-to-pneumonia-among-adults-from-different-age-groups-in-singapore-and-mortality-predictions-based-on-psi-and-curb-65
#7
Zoe Xz Zhang, Yang Yong, Wan C Tan, Liang Shen, Han Seong Ng, Kok Yong Fong
INTRODUCTION: Pneumonia is associated with considerable mortality. However, the information on age-specific prognostic factors for death from pneumonia is limited. METHODS: Patients hospitalised with a diagnosis of pneumonia through the emergency department were stratified into three age groups: 18-64 years; 65-84 years; and ≥ 85 years. Multivariate logistic regression and receiver operating characteristic (ROC) curve analyses were conducted to evaluate prognostic factors for mortality and the performance of pneumonia severity scoring tools for mortality prediction...
August 14, 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28795265/the-stress-induced-scp-hlip-family-of-small-light-harvesting-like-proteins-scpabcde-protects-photosystem-ii-from-photoinhibitory-damages-in-the-cyanobacterium-synechocystis-sp-pcc-6803
#8
Tania Tibiletti, Ateeq Ur Rehman, Imre Vass, Christiane Funk
Small CAB-like proteins (SCPs) are single-helix light-harvesting-like proteins found in all organisms performing oxygenic photosynthesis. We investigated the effect of growth in moderate salt stress on these stress-induced proteins in the cyanobacterium Synechocystis sp. PCC 6803 depleted of Photosystem I (PSI), which expresses SCPs constitutively, and compared these cells with a PSI-less/ScpABCDE(-) mutant. SCPs, by stabilizing chlorophyll-binding proteins and Photosystem II (PSII) assembly, protect PSII from photoinhibitory damages, and in their absence electrons accumulate and will lead to ROS formation...
August 9, 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/28792470/differential-mechanisms-of-photosynthetic-acclimation-to-light-and-low-temperature-in-arabidopsis-and-the-extremophile-eutrema-salsugineum
#9
Nityananda Khanal, Geoffrey E Bray, Anna Grisnich, Barbara A Moffatt, Gordon R Gray
Photosynthetic organisms are able to sense energy imbalances brought about by the overexcitation of photosystem II (PSII) through the redox state of the photosynthetic electron transport chain, estimated as the chlorophyll fluorescence parameter 1-qL, also known as PSII excitation pressure. Plants employ a wide array of photoprotective processes that modulate photosynthesis to correct these energy imbalances. Low temperature and light are well established in their ability to modulate PSII excitation pressure...
August 9, 2017: Plants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28789959/emergency-department-blood-alcohol-level-associates-with-injury-factors-and-six-month-outcome-after-uncomplicated-mild-traumatic-brain-injury
#10
John K Yue, Laura B Ngwenya, Pavan S Upadhyayula, Hansen Deng, Ethan A Winkler, John F Burke, Young M Lee, Caitlin K Robinson, Adam R Ferguson, Hester F Lingsma, Maryse C Cnossen, Romain Pirracchio, Frederick K Korley, Mary J Vassar, Esther L Yuh, Pratik Mukherjee, Wayne A Gordon, Alex B Valadka, David O Okonkwo, Geoffrey T Manley
The relationship between blood alcohol level (BAL) and mild traumatic brain injury (mTBI) remains in need of improved characterization. Adult patients suffering mTBI without intracranial pathology on computed tomography (CT) from the prospective Transforming Research and Clinical Knowledge in Traumatic Brain Injury Pilot study with emergency department (ED) Glasgow Coma Scale (GCS) 13-15 and recorded blood alcohol level (BAL) were extracted. BAL≥80-mg/dl was set as proxy for excessive use. Multivariable regression was performed for patients with six-month Glasgow Outcome Scale-Extended (GOSE; functional recovery) and Wechsler Adult Intelligence Scale Processing Speed Index Composite Score (WAIS-PSI; nonverbal processing speed), using BAL≥80-mg/dl and <80-mg/dl cohorts, adjusting for demographic/injury factors...
August 5, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28783011/removal-optimization-of-heavy-metals-from-effluent-of-sludge-dewatering-process-in-oil-and-gas-well-drilling-by-nanofiltration
#11
Mostafa Hedayatipour, Neemat Jaafarzadeh, Mehdi Ahmadmoazzam
Oil and gas well drilling industries discharge large volumes of contaminated wastewater produced during oil and gas exploration process. In this study, the effect of different operational variables, including temperature, pH and transmembrane pressure on process performance of a commercially available nanofiltration membrane (JCM-1812-50N, USA) for removing Ba, Ni, Cr, NaCl and TDS from produced wastewater by dewatering unit of an oil and gas well drilling industry was evaluated. In optimum experimental conditions (T = 25 °C, P = 170 psi and pH = 4) resulted from Thaguchi method, 85...
August 3, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28777405/bursting-pressure-of-triple-lumen-central-venous-catheters-under-static-and-dynamic-loads
#12
Tim Beckingham, Andy Roberts, Alana St John, Gerry O'Callaghan
INTRODUCTION: Central venous catheter (CVC) access is commonplace in intensive care units. Patients undergoing computed tomographic angiography require injection of contrast at high flow rates (4.5 mL/s), often CVC access is not used due to safety concerns. The CVC might rupture at high flow rates, resulting in CVC fragmentation and embolization or contrast extravasation.The objective of this study is to determine the pressure required to burst a CVC under static load and compare this to the pressure generated by injection of contrast at high flow rates (dynamic load) through the distal (16-g) lumen of a triple-lumen CVC...
August 3, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28770303/functional-and-structural-characterization-of-synthetic-cardosin-b-derived-rennet
#13
Carla Malaquias Almeida, José A Manso, Ana C Figueiredo, Liliana Antunes, Rui Cruz, Bruno Manadas, Daniel Bur, Pedro José Barbosa Pereira, Carlos Faro, Isaura Simões
The potential of using a synthetic cardosin-based rennet in cheese manufacturing was recently demonstrated with the development and optimization of production of a recombinant form of cardosin B in Kluyveromyces lactis. With the goal of providing a more detailed characterization of this rennet, we herein evaluate the impact of the plant-specific insert (PSI) on cardosin B secretion in this yeast, and provide a thorough analysis of the specificity requirements as well as the biochemical and structural properties of the isolated recombinant protease...
August 2, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28769999/non-operative-management-for-penetrating-splenic-trauma-how-far-can-we-go-to-save-splenic-function
#14
Roy Spijkerman, Michel Paul Johan Teuben, Fatima Hoosain, Liezel Phyllis Taylor, Timothy Craig Hardcastle, Taco Johan Blokhuis, Brian Leigh Warren, Luke Petrus Hendrikus Leenen
BACKGROUND: Selective non-operative management (NOM) for the treatment of blunt splenic trauma is safe. Currently, the feasibility of selective NOM for penetrating splenic injury (PSI) is unclear. Unfortunately, little is known about the success rate of spleen-preserving surgical procedures. The aim of this study was to investigate the outcome of selective NOM for penetrating splenic injuries. METHODS: A dual-centre study is performed in two level-one trauma centres...
2017: World Journal of Emergency Surgery: WJES
https://www.readbyqxmd.com/read/28764514/a-small-volume-pvtx-system-for-broadband-spectroscopic-calibration-of-downhole-optical-sensors
#15
Christopher Michael Jones, Michael T Pelletier, Robert Atkinson, Jing Shen, Jeff Moore, Jimmy Anders, David L Perkins, Michael L Myrick
An instrument is presented that is capable of measuring the optical spectrum (long-wave ultraviolet through short-wave mid-infrared) of fluids under a range of temperature and pressure conditions from ambient pressure up to 138 MPa (20 000 psi) and 422 K (300 °F) using ∼5 ml of fluid. Temperature, pressure, and density are measured in situ in real-time, and composition is varied by adding volatile and nonvolatile components. The stability and accuracy of the conditions are reported for pure ethane, and the effects of temperature and pressure on characteristic regions of the optical spectrum of ethane are illustrated after correction for temperature and pressure effects on the optical cell path length, as well as normalization to the measured density...
July 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28762578/identification-and-functionality-prediction-of-pathogenesis-related-protein-1-from-legume-family
#16
Meenakshi Tellis, Monika Mathur, Gayatri Gurjar, Narendra Kadoo, Vidya Gupta
The production and accumulation of pathogenesis related (PR) proteins in plants is one of the important responses to biotic and abiotic stress. Large number of identified PR proteins has been categorized into 17 functional families based on their structure, phylogenetics and biological activities. However, they are not widely studied in legume crops. Using 29 PR1 proteins from Arabidopsis thaliana, as query, here we have predicted 92 candidate PR1 proteins through the PSI-BLAST and HMMER programs. These candidate proteins were comprehensively analysed with, multiple sequence alignment, domain architecture studies, signal peptide and motif extraction followed by phylogenetic analysis...
August 1, 2017: Proteins
https://www.readbyqxmd.com/read/28760573/work-productivity-loss-after-mild-traumatic-brain-injury
#17
Noah D Silverberg, William J Panenka, Grant L Iverson
OBJECTIVE: To examine the completeness of return to work (RTW) and the degree of productivity loss in individuals who do achieve a complete RTW after mild traumatic brain injury (MTBI). DESIGN: Multi-site prospective cohort. SETTING: Outpatient concussion clinics. PARTICIPANTS: Seventy-nine patients (M=41.5 years old, 55.7% female) who sustained an MTBI and were employed at the time of the injury. Participants were enrolled at their first clinic visit and assessed by telephone 6-8 months post-injury...
July 28, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28760258/cardiac-magnetic-resonance-aided-scar-dechanneling-influence-on-acute-and-long-term-outcomes
#18
David Andreu, Diego Penela, Juan Acosta, Juan Fernández-Armenta, Rosario J Perea, David Soto-Iglesias, Teresa M de Caralt, Jose T Ortiz-Perez, Susana Prat-González, Roger Borràs, Eduard Guasch, Jose María Tolosana, Lluis Mont, Antonio Berruezo
BACKGROUND: Late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) provides tissue characterization of ventricular myocardium and scar that can be depicted as pixel signal intensity (PSI) maps. OBJECTIVE: To assess the possible benefit of guiding the ventricular tachycardia (VT) substrate mapping by integrating these PSI maps into the navigation system. METHODS: In total, 159 consecutive patients (66 ± 11 years old, 151 men [95%]) with scar-related left ventricular (LV) VT were included...
August 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28756064/ct-versus-mri-based-patient-specific-instrumentation-for-total-knee-arthroplasty-a-systematic-review-and-meta-analysis
#19
REVIEW
Xiang-Dong Wu, Bing-Yan Xiang, Martijn G M Schotanus, Zun-Han Liu, Yu Chen, Wei Huang
BACKGROUND: To determine whether computed tomography (CT) or magnetic resonance imaging (MRI) is more suitable for the patient-specific instrumentation (PSI) systems for total knee arthroplasty (TKA). METHODS: PubMed, Embase, and the Cochrane Library were searched from inception to June 2016 for prospective comparative trials that compared CT- versus MRI-based PSI systems for TKA. Our predefined primary outcome was the outliers incidence of coronal overall limb alignment...
July 26, 2017: Surgeon: Journal of the Royal Colleges of Surgeons of Edinburgh and Ireland
https://www.readbyqxmd.com/read/28755358/social-functioning-and-behaviour-in-mucopolysaccharidosis-ih-hurlers-syndrome
#20
Annukka Lehtonen, Stewart Rust, Simon Jones, Richard Brown, Dougal Hare
BACKGROUND: Mucopolysaccharidosis type IH (MPS-IH) [Hurlers Syndrome] is a developmental genetic disorder characterised by severe physical symptoms and cognitive decline. This study aimed to investigate the behavioural phenotype of MPS-IH treated by haematopoietic cell transplantation, focusing on social functioning and sleep. Parental stress was also measured. METHODS: Participants were 22 children with MPS-IH (mean age 9 years 1 month), of whom 10 were male (45%)...
July 29, 2017: JIMD Reports
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