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https://www.readbyqxmd.com/read/28320168/a-systematic-comparison-of-key-features-of-ischemic-stroke-prevention-guidelines-in-low-and-middle-income-vs-high-income-countries
#1
REVIEW
Hernán Bayona, Mayowa Owolabi, Wuwei Feng, Paul Olowoyo, Joseph Yaria, Rufus Akinyemi, James R Sawers, Bruce Ovbiagele
BACKGROUND AND PURPOSE: Implementation of contextually appropriate, evidence-based, expert-recommended stroke prevention guideline is particularly important in Low-Income Countries (LMICs), which bear disproportional larger burden of stroke while possessing fewer resources. However, key quality characteristics of guidelines issued in LMICs compared with those in High-Income Countries (HICs) have not been systematically studied. We aimed to compare important features of stroke prevention guidelines issued in these groups...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28320134/post-hemorrhagic-hydrocephalus-recent-advances-and-new-therapeutic-insights
#2
REVIEW
Qianwei Chen, Zhou Feng, Qiang Tan, Jing Guo, Jun Tang, Liang Tan, Hua Feng, Zhi Chen
Post-hemorrhagic hydrocephalus (PHH), also referred to as progressive ventricular dilatation, is caused by disturbances in cerebrospinal fluid (CSF) flow or absorption following hemorrhage in the brain. As one of the most serious complications of neonatal/adult intraventricular hemorrhage (IVH), subarachnoid hemorrhage (SAH), and traumatic brain injury (TBI), PHH is associated with increased morbidity and disability of these events. Common sequelae of PHH include neurocognitive impairment, motor dysfunction, and growth impairment...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28319868/synthesis-characterization-of-amide-substituted-dexibuprofen-derivatives-and-their-spectral-voltammetric-and-docking-investigations-for-dna-binding-interactions
#3
Nasima Arshad, Muhammad Zafran, Zaman Ashraf, Fouzia Perveen
Three amide derivatives - methyl-2-[2-(4-isobutylphenyl)propanamido]propanoate (Dex-2), methyl 2-[2-(4-isobutylphenyl) propanamido]-3-phenylpropanoate (Dex-3) and methyl 2-[2-(4-isobutylphenyl)-propanamido]-4-methylpentanoate (Dex-4) of dexibuprofen (Dex-1) 2-(4-isobutylphenyl)propanoic acid were synthesized and conformed for structures by physical data and spectral analysis. Further, all the compounds were studied for their binding with ds.DNA through experimental (UV-visible/and fluorescence spectroscopy, cyclic voltammetry) and theoretical (molecular docking) techniques...
March 3, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28319845/surface-transport-processes-in-charged-porous-media
#4
Jorge Gabitto, Costas Tsouris
Surface transport processes are very important in chemistry, colloidal sciences, engineering, biology, and geophysics. Natural or externally produced charges on surfaces create electrical double layers (EDLs) at the solid-liquid interface. The existence of the EDLs produces several complex processes including bulk and surface transport of ions. In this work, a model is presented to simulate bulk and transport processes in homogeneous porous media comprising big pores. It is based on a theory for capacitive charging by ideally polarizable porous electrodes without Faradaic reactions or specific adsorption of ions...
March 3, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28319814/time-specific-and-cumulative-effects-of-exposure-to-parental-externalizing-behavior-on-risk-for-young-adult-alcohol-use-disorder
#5
Alexis C Edwards, Sara L Lönn, Katherine J Karriker-Jaffe, Jan Sundquist, Kenneth S Kendler, Kristina Sundquist
BACKGROUND: Previous studies indicate that parental externalizing behavior (EB) is a robust risk factor for alcohol use disorder (AUD) in their children, and that this is due to both inherited genetic liability and environmental exposure. However, it remains unclear whether the effects of exposure to parental EB vary as a function of timing and/or chronicity. METHODS: We identified biological parents with an alcohol use disorder, drug abuse, or criminal behavior, during different periods of their child's upbringing, using Swedish national registries...
March 8, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28319762/growth-of-algal-biomass-in-laboratory-and-in-large-scale-algal-photobioreactors-in-the-temperate-climate-of-western-germany
#6
Christina Schreiber, Dominik Behrendt, Gregor Huber, Christian Pfaff, Janka Widzgowski, Bärbel Ackermann, Andreas Müller, Vilém Zachleder, Šárka Moudříková, Peter Mojzeš, Ulrich Schurr, Johan Grobbelaar, Ladislav Nedbal
Growth of Chlorella vulgaris was characterized as a function of irradiance in a laboratory turbidostat (1L) and compared to batch growth in sunlit modules (5-25L) of the commercial NOVAgreen photobioreactor. The effects of variable sunlight and culture density were deconvoluted by a mathematical model. The analysis showed that algal growth was light-limited due to shading by external construction elements and due to light attenuation within the algal bags. The model was also used to predict maximum biomass productivity...
March 7, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28319734/novel-mechanical-impact-simulator-designed-to-generate-clinically-relevant-anterior-cruciate-ligament-ruptures
#7
Nathaniel A Bates, Nathan D Schilaty, Christopher V Nagelli, Aaron J Krych, Timothy E Hewett
BACKGROUND: Over 250,000 anterior cruciate ligament ruptures occur each year; therefore, it is important to understand the underlying mechanisms of these injuries. The objective of the current investigation was to develop and analyze an impact test device that consistently produces anterior cruciate ligament failure in a clinically relevant manner. METHOD: A mechanical impact simulator was developed to simulate the ground reaction force impulse generated from landing in a physiologic and clinically relevant manner...
March 10, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28319692/development-and-properties-of-a-brief-scale-to-assess-intimate-partner-relationship-in-the-postnatal-period
#8
Karen Wynter, Thach Duc Tran, Heather Rowe, Jane Fisher
BACKGROUND: Poor quality intimate partner relationship is associated with postnatal depression and anxiety among women. Existing scales assessing the quality of this relationship are long and measure stable aspects of the relationship rather than specific behaviours which may respond to targeted interventions. The aim was to develop and investigate the properties of a brief, life stage-specific scale to assess potentially modifiable partner behaviours in the postpartum period. METHODS: Participants were primiparous women from diverse geographical and socio-economic backgrounds in Victoria, Australia...
March 14, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28319667/a-generalized-method-for-the-synthesis-of-ligand-free-m-sio2-m-ag-au-pd-pt-yolk-shell-nanoparticles
#9
Firdoz Shaik, Weiqing Zhang, Wenxin Niu
A universal method is reported for the synthesis of ligand free noble metal M@SiO2 (M=Ag, Au, Pd, Pt) yolk-shell nanoparticles (YSNs). Mesoporous hollow silica shells (mHSS) are used as smart nanoreactors for the synthesis of noble metal yolk-shell nanoparticles. The nanocavity of a mHSS and anionic metal ions play a critical role in formation of yolk-shell nanoparticles. The synthesis mechanism can be tuned by simply varying the pH of the noble metal precursor aqueous solution. A critical pH ≥ 4 is required for the formation of YSNs...
March 20, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28319615/dual-light-control-of-nanomachines-that-integrate-motor-and-modulator-subunits
#10
Justin T Foy, Quan Li, Antoine Goujon, Jean-Rémy Colard-Itté, Gad Fuks, Emilie Moulin, Olivier Schiffmann, Damien Dattler, Daniel P Funeriu, Nicolas Giuseppone
A current challenge in the field of artificial molecular machines is the synthesis and implementation of systems that can produce useful work when fuelled with a constant source of external energy. The first experimental achievements of this kind consisted of machines with continuous unidirectional rotations and translations that make use of 'Brownian ratchets' to bias random motions. An intrinsic limitation of such designs is that an inversion of directionality requires heavy chemical modifications in the structure of the actuating motor part...
March 20, 2017: Nature Nanotechnology
https://www.readbyqxmd.com/read/28319610/capillary-k-sensing-initiates-retrograde-hyperpolarization-to-increase-local-cerebral-blood-flow
#11
Thomas A Longden, Fabrice Dabertrand, Masayo Koide, Albert L Gonzales, Nathan R Tykocki, Joseph E Brayden, David Hill-Eubanks, Mark T Nelson
Blood flow into the brain is dynamically regulated to satisfy the changing metabolic requirements of neurons, but how this is accomplished has remained unclear. Here we demonstrate a central role for capillary endothelial cells in sensing neural activity and communicating it to upstream arterioles in the form of an electrical vasodilatory signal. We further demonstrate that this signal is initiated by extracellular K(+) -a byproduct of neural activity-which activates capillary endothelial cell inward-rectifier K(+) (KIR2...
March 20, 2017: Nature Neuroscience
https://www.readbyqxmd.com/read/28319476/anesthesia-in-patients-with-infectious-disease-caused-by-multi-drug-resistant-bacteria
#12
Sharon Einav, Yonit Wiener-Well
PURPOSE OF REVIEW: Up to 50% of specific bacterial strains in healthcare admission facilities are multidrug-resistant organisms (MDROs). Involvement of anesthesiologists in management of patients carrying/at risk of carrying MDROs may decrease transmission in the Operating Room (OR). RECENT FINDINGS: Anesthesiologists, their work area and tools have all been implicated in MDRO outbreaks. Causes include contamination of external ventilation circuits and noncontribution of filters to prevention, inappropriate decontamination procedures for nondisposable equipment (e...
March 17, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28319462/late-effects-of-exposure-to-ionizing-radiation-and-age-on-human-thymus-morphology-and-function
#13
Reiko Ito, Laura P Hale, Susan M Geyer, Jie Li, Andrew Sornborger, Junko Kajimura, Yoichiro Kusunoki, Kengo Yoshida, Marcel R M van den Brink, Seishi Kyoizumi, Nancy R Manley, Kei Nakachi, Gregory D Sempowski
The thymus is essential for proper development and maintenance of a T-cell repertoire that can respond to newly encountered antigens, but its function can be adversely affected by internal factors such as pregnancy and normal aging or by external stimuli such as stress, infection, chemotherapy and ionizing radiation. We have utilized a unique archive of thymus tissues, obtained from 165 individuals, exposed to the 1945 atomic bomb blast in Hiroshima, to study the long-term effects of receiving up to ∼3 Gy dose of ionizing radiation on human thymus function...
March 20, 2017: Radiation Research
https://www.readbyqxmd.com/read/28319424/rivaroxaban-in-patients-with-atrial-fibrillation-from-rocket-af-to-everyday-practice
#14
Gonzalo Barón-Esquivias, Francisco Marín, Marcelo Sanmartín
Registries and non-interventional studies offer relevant and complementary information to clinical trials, since they have a high external validity. Areas covered: The information regarding the efficacy and safety of rivaroxaban compared with warfarin, or rivaroxaban alone in clinical practice was reviewed in this manuscript. For this purpose, a search on MEDLINE and EMBASE databases was performed. The MEDLINE and EMBASE search included both medical subject headings (MeSH) and keywords including: atrial fibrillation (AF) OR warfarin OR clinical practice OR ROCKET AF AND rivaroxaban...
March 20, 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28319366/magnetic-printing-of-a-biosensor-inexpensive-rapid-sensing-to-detect-picomolar-amounts-of-antigen-with-antibody-functionalized-carbon-nanotubes
#15
Abdel Rahman Abdel Fattah, Ahmed M Abdalla, Sarah Mishriki, Elvira Meleca, Fei Geng, Suvojit Ghosh, Ishwar K Puri
When an antibody (Ab) is immobilized on its surface, a carbon nanotube (CNT) becomes a biosensor that detects the corresponding antigen (Ag) since Ag-Ab complexes formed on the CNT surface moderate the current flow through it. We synthesize a biological ink containing CNTs that are twice functionalized, first with magnetic nanoparticles (MNPs) and thereafter with the anti-c-Myc monoclonal Ab. The ink is pipetted and dynamically self organized by an external magnetic field into a dense electrically conducting sensor strip that measures the decrease in current when a sample containing c-Myc Ag is deposited on it...
March 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28319315/maxillofacial-features-and-systemic-malformations-in-expanded-spectrum-hemifacial-microsomia
#16
Noah Cohen, Erica Cohen, Alberto Gaiero, Silvia Zecca, Graziella Fichera, Federica Baldi, Joseph Felix Giordanetto, Jacques Marie Mercier, Amnon Cohen
Hemifacial microsomia (HFM) is a rare, multisystemic congenital disease with estimated frequency of 1/26370 births in Europe. Most cases are sporadic and caused by unilateral abnormal morphogenesis of the first and second pharyngeal arches. The aim of this study is to define the types and frequency of maxillofacial and systemic malformations in HFM patients. This is a case series study of patients with HFM evaluated at a single institution. Data were acquired through history, physical examination, photographs, diagnostic radiology, and laboratory and analyzed by the FileMakerPro database on 95 patients (54F; 41M) of which 89 met the inclusion criteria...
March 20, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28319257/hunger-and-thirst-interact-to-regulate-ingestive-behavior-in-flies-and-mammals
#17
REVIEW
Nicholas Jourjine
In animals, nervous systems regulate the ingestion of food and water in a manner that reflects internal metabolic need. While the coordination of these two ingestive behaviors is essential for homeostasis, it has been unclear how internal signals of hunger and thirst interact to effectively coordinate food and water ingestion. In the last year, work in insects and mammals has begun to elucidate some of these interactions. As reviewed here, these studies have identified novel molecular and neural mechanisms that coordinate the regulation of food and water ingestion behaviors...
March 20, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/28319024/the-prostatic-utricle-an-under-recognized-condition-resulting-in-significant-morbidity-in-boys-with-both-hypospadias-and-normal-external-genitalia
#18
Austin G Hester, Stanley J Kogan
INTRODUCTION: Pediatric presentations of a prostatic utricle have received only scant attention. Though recognized with increased frequency in boys with hypospadias, little is described about their incidence and potential for morbidity in boys with normal external genitalia. METHODS: We initially reviewed a cohort of 64 patients with hypospadias seen over a 3-year period to determine the frequency of investigative lower urinary tract studies and utricle identification...
March 1, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28318891/lessons-from-a-national-audit-of-acute-pancreatitis-a-summary-of-the-ncepod-report-treat-the-cause
#19
REVIEW
D A O'Reilly, S J McPherson, M T Sinclair, N Smith
The National Confidential Enquiry into Patient Outcome and Death (NCEPOD) is an independent organisation whose remit is to review the quality of medical and surgical care provided in the United Kingdom. We undertook a review into the care provided to patients treated for acute pancreatitis during a 6 month study period between 1st January and 30th June 2014. This included assessment of care at an organisational level, clinical level within hospitals and external peer review. From a random sample, 712 patients underwent hospital clinician review and 418 patients had external peer review...
February 17, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/28318881/targeted-therapy-in-thyroid-cancer-state-of-the-art
#20
L Valerio, L Pieruzzi, C Giani, L Agate, V Bottici, L Lorusso, V Cappagli, L Puleo, A Matrone, D Viola, C Romei, R Ciampi, E Molinaro, R Elisei
Thyroid cancer typically has a good outcome following standard treatments, which include surgery, radioactive iodine ablation for differentiated tumours and treatment with thyrotropine hormone-suppressive levothyroxine. Thyroid cancers that persist or recur following these therapies have a poorer prognosis. Cytotoxic chemotherapy or external beam radiotherapy has a low efficacy in these patients. 'Target therapy' with tyrosine kinase inhibitors (TKIs) represent an important therapeutic option for the treatment of advanced cases of radioiodine refractory (RAI-R) differentiated thyroid cancer (DTC), medullary thyroid cancer (MTC) and possibly for cases of poorly differentiated (PDTC) and anaplastic thyroid cancer (ATC)...
March 16, 2017: Clinical Oncology: a Journal of the Royal College of Radiologists
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