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https://www.readbyqxmd.com/read/28447674/role-of-grain-size-on-redox-induced-compositional-stresses-in-pr-doped-ceria-thin-films
#1
Jay Sheth, Di Chen, Harry L Tuller, Scott T Misture, Sean R Bishop, Brian W Sheldon
In constrained geometries and in varying oxygen partial pressures and operating temperatures, exchange of oxygen ions between non-stoichiometric oxide thin films (for example, doped and undoped ceria systems) and the gas phase can lead to stresses. In this study, these compositional stresses were investigated in thin films of nanocrystalline 10% praseodymium doped ceria (PCO), as a function of average grain size. In situ wafer curvature measurements, along with High Temperature X-Ray Diffraction (HTXRD), were employed to measure stresses and strains, respectively on the PCO films during oxidation-reduction cycling, over the pO2 range of 10(-1)-10(-5) atm at 750 °C...
April 27, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28441112/second-line-hormonal-therapy-for-men-with-chemotherapy-na%C3%A3-ve-castration-resistant-prostate-cancer-american-society-of-clinical-oncology-provisional-clinical-opinion
#2
Katherine S Virgo, Ethan Basch, D Andrew Loblaw, Tom Oliver, R Bryan Rumble, Michael A Carducci, Luke Nordquist, Mary-Ellen Taplin, Eric Winquist, Eric A Singer
Purpose ASCO provisional clinical opinions (PCOs) offer direction to the ASCO membership after publication or presentation of potential practice-changing data. This PCO addresses second-line hormonal therapy for chemotherapy-naïve men with castration-resistant prostate cancer (CRPC) who range from being asymptomatic with only biochemical evidence of CRPC to having documented metastases but minimal symptoms. Clinical Context The treatment goal for CRPC is palliation. Despite resistance to initial androgen deprivation therapy, most men respond to second-line hormonal therapies...
April 25, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28429670/expression-of-dominant-negative-k6w-ubiquitin-in-the-lens-epithelium-via-an-adenoviral-vector-delays-posterior-capsule-opacification-in-a-rabbit-model
#3
Xuan Bao, Min Hou, Ruiping Peng, Furong Luo, Mingxing Wu
PURPOSE: Ubiquitin is involved in cell proliferation and differentiation, and the objective of this study is to investigate the potential of dominant negative Ubiquitin (Ub) with a lysine to tryptophan mutation at the 6 position (K6W) through an adenoviral expression vector in the prevention of posterior capsule opacification (PCO) in a rabbit PCO model. METHODS: Recombinant dominant negative K6W-Ub adenovirus (RAd-K6W-Ub) with green fluorescent protein (RAd-K6W-Ub/GFP) and RAd-GFP viruses (control) were generated with QBI-HEK 293A cells...
March 31, 2017: Current Molecular Medicine
https://www.readbyqxmd.com/read/28427041/the-efficacy-of-donepezil-administration-on-acetylcholinesterase-activity-and-altered-redox-homeostasis-in-alzheimer-s-disease
#4
Pinar Atukeren, Mahir Cengiz, Hakan Yavuzer, Remise Gelisgen, Esma Altunoglu, Sena Oner, Fusun Erdenen, Damla Yuceakın, Himmet Derici, Ufuk Cakatay, Hafize Uzun
Alzheimer's disease (AD) is a serious multifactorial disorder with progressive neurodegenerative outcomes related with impaired redox homeostasis. Inhibition of the enzyme acetylcholinesterase (AChE), as one of the major therapeutic strategies, is considered to be offering only symptomatic relief and moderate disease modifying effect. We intended to investigate the effects of acetylcholinesterase inhibition via donepezil on protein carbonyl (PCO), advanced protein oxidation products (AOPP) and ischemia modified albumin (IMA) as protein oxidation markers and ferric reducing antioxidant power (FRAP), prooxidant-antioxidant balance (PAB), total thiol (T-SH), protein thiol (P-SH) as antioxidant status markers and also kynurenine (KYN), N-formyl kynurenine (N-FKYN) and protein bound dityrosine (DT) levels all in one demonstrating the redox homeostasis in Alzheimer patients also correlated with AChE activity...
April 17, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28425965/comparison-of-cpap-and-hfnc-in-management-of-bronchiolitis-in-infants-and-young-children
#5
Majken Bisgaard Pedersen, Signe Vahlkvist
Continuous positive airway pressure (CPAP) has been used in infants with bronchiolitis for decades. Recently, high flow nasal cannula (HFNC) therapy was introduced We conducted a retrospective study of treatment with CPAP vs. HFNC between 2013 and 2015, comparing the development in respiratory rate, fraction of inspired oxygen (FiO2) and heart rate, treatment failure, duration of treatment, and length of hospital stay. A sample size of 49 children were included. Median age was 1.9 months. Median baseline pCO₂ was 7...
April 20, 2017: Children
https://www.readbyqxmd.com/read/28415768/interleukin-27-polymorphisms-are-associated-with-premature-coronary-artery-disease-and-metabolic-parameters-in-the-mexican-population-the-genetics-of-atherosclerotic-disease-gea-mexican-study
#6
Rosalinda Posadas-Sánchez, Nonanzit Pérez-Hernández, José Manuel Rodríguez-Pérez, Ramón M Coral-Vázquez, Bladimir Roque-Ramírez, Luis Llorente, Guadalupe Lima, Carmina Flores-Dominguez, Teresa Villarreal-Molina, Carlos Posadas-Romero, Gilberto Vargas-Alarcón
Several studies suggest an important role of Interleukin-27 in the development of atherosclerosis. The aim of this study was to establish whether the IL-27p28 gene polymorphisms are associated with premature coronary artery disease and/or other cardiovascular risk factors. Four IL-27p28 gene polymorphisms were selected and genotyped in 1162 premature coronary artery disease cases and 1107 controls. rs26528 T and rs40837 A alleles were significantly associated with a lower risk of premature coronary artery disease under different inheritance models (Pdominant = 0...
March 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28415418/uv-assisted-treatment-on-hydrophobic-acrylic-iols-anterior-surface-with-methacryloyloxyethyl-phosphorylcholine-reducing-inflammation-and-maintaining-low-posterior-capsular-opacification-properties
#7
Xiaodan Huang, Chenqi Luo, Lin Lin, Li Zhang, Heyi Li, Ke Yao, Zhikang Xu
In order to enhance the surface biocompatibility of hydrophobic acrylic intraocular lenses (IOLs), the anterior surface was modified through graft polymerization with methacryloyloxyethyl phosphorylcholine (MPC) initiated by ultraviolet radiation. Chemical changes on the IOL surface were characterised by X-ray photoelectron spectroscopy (XPS) to confirm the covalent binding of MPC. Field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM) analysis were used to characterise the morphological changes to the IOL surface...
June 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28399584/-recommendations-for-physical-activity-during-and-after-pregnancy
#8
Nina Ferrari, Christine Graf
Regular physical activity during and after pregnancy has beneficial effects for mother and child. German recommendations for physical activity during pregnancy are still missing.We searched PubMed (MedLine) for guidelines published between January 2010 and September 2015 on physical activity during and after pregnancy.A systematic literature research identified 29 articles. Recommendations in the context of specific diseases (gestational diabetes, preeclampsia, obesity, hypertension, PCO, incontinence) or intervention programs were excluded...
March 2017: Das Gesundheitswesen
https://www.readbyqxmd.com/read/28395405/-effect-of-oxygen-tubing-connection-site-on-percutaneous-oxygen-partial-pressure-and-percutaneous-carbon-dioxide-partial-pressure-in-patients-with-chronic-obstructive-pulmonary-disease-during-noninvasive-positive-pressure-ventilation
#9
S Mi, L M Zhang
Objective: We evaluated the effects of administering oxygen through nasal catheters inside the mask or through the mask on percutaneous oxygen partial pressure (PcO(2))and percutaneous carbon dioxide partial pressure (PcCO(2)) during noninvasive positive pressure ventilation (NPPV) to find a better way of administering oxygen, which could increase PcO(2) by increasing the inspired oxygen concentration. Methods: Ten healthy volunteers and 9 patients with chronic obstructive pulmonary disease complicated by type Ⅱ respiratory failure were included in this study...
April 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28371401/glistenings-anterior-posterior-capsular-opacification-and-incidence-of-nd-yag-laser-treatments-with-two-aspheric-hydrophobic-acrylic-intraocular-lenses-a-long-term-intra-individual-study
#10
Björn Johansson
PURPOSE: To compare two hydrophobic acrylic intraocular lenses (IOLs) regarding long-term anterior/posterior capsular opacification (ACO/PCO) development and need for neodymium:Yttrium-Aluminum-Garnet (Nd:YAG) laser treatment due to visually disturbing PCO, and to study development of glistenings in the IOL materials. METHODS: In a prospective, randomized, intra-individual, comparative trial, 50 cataract patients received either an AcrySof IQ(®) SN60WF (Alcon, Fort Worth, TX, USA) or a Tecnis(®) ZCB00 (Abbott Medical Optics, Santa Ana, CA, USA) IOL in the first operated eye, and the second eye received the IOL type not implanted in the first eye...
March 30, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28371334/the-risk-of-healing-complications-in-primary-teeth-with-concussion-and-subluxation-injury-a-retrospective-cohort-study
#11
Eva Lauridsen, Paul Blanche, Catherina Amaloo, Jens Ove Andreasen
BACKGROUND/AIM: Traumatic dental injuries (TDIs) in the primary dentition occur frequently. Long term complications may potentially cause damage to the permanent successor. The aim of this study was to report the risk of pulp necrosis (PN), pulp canal obliteration (PCO), repair related resorption (RRR), infection-related resorption (IRR), ankylosis-related resorption (ARR) and premature tooth loss (PTL) in primary teeth following concussion and subluxation injuries, and to identify possible risk factors for PN, PCO and PTL following subluxation...
March 28, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28370922/identification-and-content-validation-of-wound-therapy-clinical-endpoints-relevant-to-clinical-practice-and-patient-values-for-fda-approval-part-1-survey-of-the-wound-care-community
#12
Vickie R Driver, Lisa J Gould, Peggy Dotson, Gary W Gibbons, William W Li, William J Ennis, Robert S Kirsner, William H Eaglstein, Laura L Bolton, Marissa J Carter
Wounds that exhibit delayed healing add extraordinary clinical, economic, and personal burdens to patients, as well as to increasing financial costs to health systems. New interventions designed to ease such burdens for patients with cancer, renal, or ophthalmologic conditions are often cleared for approval by the U.S. Food and Drug Administration (FDA) using multiple endpoints but the requirement of complete healing as a primary endpoint for wound products impedes FDA clearance of interventions that can provide other clinical or patient-centered benefits for persons with wounds...
April 3, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28366371/intraindividual-comparison-of-capsule-behavior-of-2-hydrophobic-acrylic-intraocular-lenses-during-a-5-year-follow-up
#13
Guenal Kahraman, Clara Ferdinaro, Barbara Wetzel, Clemens Bernhart, Franz Prager, Michael Amon
PURPOSE: To evaluate and compare the 5-year postoperative anterior (ACO) and posterior capsule opacification (PCO), the occurrence of glistenings, and the level of anterior capsule retraction after implantation of 2 designs of 1-piece hydrophobic acrylic IOLs. SETTING: Hospital St. John, Vienna, Austria. DESIGN: Randomized controlled prospective case series. METHODS: Patients had an Acrysof SA60AT IOL (Group A) implanted in 1 eye and a Tecnis ZCB00 IOL (Group B) implanted in the fellow eye...
February 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28360083/posterior-condylar-offset-is-an-independent-predictor-of-functional-outcome-after-revision-total-knee-arthroplasty
#14
N D Clement, D J MacDonald, D F Hamilton, R Burnett
OBJECTIVES: Preservation of posterior condylar offset (PCO) has been shown to correlate with improved functional results after primary total knee arthroplasty (TKA). Whether this is also the case for revision TKA, remains unknown. The aim of this study was to assess the independent effect of PCO on early functional outcome after revision TKA. METHODS: A total of 107 consecutive aseptic revision TKAs were performed by a single surgeon during an eight-year period...
March 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28349653/the-risk-of-healing-complications-in-primary-teeth-with-intrusive-luxation-a-retrospective-cohort-study
#15
Eva Lauridsen, Paul Blanche, Nadia Yousaf, Jens Ove Andreasen
BACKGROUND/AIMS: Intrusive luxation is a frequent injury in the primary dentition. Complications such as ankylosis or pulp necrosis and infection with periapical inflammation may affect the developing permanent tooth if not diagnosed and treated in time. The aim of this study was to report the risk of pulp necrosis (PN), pulp canal obliteration (PCO), infection-related resorption (IRR), ankylosis-related resorption (ARR) and premature tooth loss (PTL) in primary teeth following intrusive luxation, and to identify possible risk factors for PN and PTL...
March 28, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28349629/the-risk-of-healing-complications-in-primary-teeth-with-extrusive-or-lateral-luxation-a-retrospective-cohort-study
#16
Eva Lauridsen, Paul Blanche, Nadia Yousaf, Jens Ove Andreasen
BACKGROUND/AIM: Traumatic dental injuries (TDIs) in the primary dentition occur frequently. Long term complications may potentially cause damage to the permanent successor. The aim of this study was to report the risk of pulp necrosis (PN), pulp canal obliteration (PCO), infection-related resorption (IRR), ankylosis-related resorption (ARR) and premature tooth loss (PTL) in primary teeth following extrusion or lateral luxation, and to identify risk factors for PN and PTL. MATERIAL AND METHODS: This was a retrospective study of 24 patients with 26 extruded primary teeth, and 242 patients with 331 primary teeth with lateral luxation...
March 28, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28337060/nutraceuticals-in-prevention-of-cataract-an-evidence-based-approach
#17
REVIEW
Amandeep Kaur, Vikas Gupta, Ajay Francis Christopher, Manzoor Ahmad Malik, Parveen Bansal
Cataract is a principal cause of blindness in the world and is characterized by clouding of eye's natural lens. Surgery is the major therapeutic step taken to cure cataract; however, it is having its own limitations and complications such as iris prolapse, raised IOP, infection, cystoid macular edema and posterior capsular opacification (PCO). So world is looking toward more robust and natural ways to prevent cataract. One of the important factors that can play a role in prevention of any and many diseases is diet of the people...
January 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28332493/plant-cysteine-oxidases-are-dioxygenases-that-directly-enable-arginyl-transferase-catalysed-arginylation-of-n-end-rule-targets
#18
Mark D White, Maria Klecker, Richard J Hopkinson, Daan A Weits, Carolin Mueller, Christin Naumann, Rebecca O'Neill, James Wickens, Jiayu Yang, Jonathan C Brooks-Bartlett, Elspeth F Garman, Tom N Grossmann, Nico Dissmeyer, Emily Flashman
Crop yield loss due to flooding is a threat to food security. Submergence-induced hypoxia in plants results in stabilization of group VII ETHYLENE RESPONSE FACTORs (ERF-VIIs), which aid survival under these adverse conditions. ERF-VII stability is controlled by the N-end rule pathway, which proposes that ERF-VII N-terminal cysteine oxidation in normoxia enables arginylation followed by proteasomal degradation. The PLANT CYSTEINE OXIDASEs (PCOs) have been identified as catalysts of this oxidation. ERF-VII stabilization in hypoxia presumably arises from reduced PCO activity...
March 23, 2017: Nature Communications
https://www.readbyqxmd.com/read/28299431/changes-of-posterior-condylar-offset-results-in-midflexion-instability-in-single-radius-total-knee-arthroplasty
#19
Georg Matziolis, Steffen Brodt, Christoph Windisch, Eric Roehner
INTRODUCTION: There is no algorithm for the management of joint stability in midflexion up to now. Change in the joint line (JL) is considered to be the primary cause, although it only determines the extension gap. The purpose of this study was to determine the influence of the posterior condylar offsets (PCO), which defines the flexion gap, on midflexion instability. MATERIALS AND METHODS: Forty-two knee joints (38 patients) were included in this study, patients undergoing navigated total knee arthroplasty due to primary osteoarthritis of the knee...
May 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28295977/unexpected-photodegradation-of-a-phosphaketenyl-substituted-germyliumylidene-borate-complex
#20
Yun Xiong, Shenglai Yao, Tibor Szilvási, Ernesto Ballestero-Martínez, Hansjörg Grützmacher, Matthias Driess
The first zwitterionic borata-bis(NHC)-stabilized phosphaketenyl germyliumylidene [(L2 (O=C=P)Ge:] 2 (L2 =(p-tolyl)2 B[1-(1-adamantyl)-3-yl-2-ylidene]2 ) has been synthesized by salt-metathesis reaction of [L2 (Cl)Ge:] 1 with sodium phosphaethynolate [(dioxane)n NaOCP]. Unexpectedly, its exposure to UV light affords, after reductive elimination of the entire PCO group, the unprecedented [L2 Ge-GeL2 ] complex 3 in 54 % yields bearing the Ge2(2+) ion with Ge in the oxidation state +1. In addition, the 1,3-digermylium-2,4-diphosphacyclobutadiene [L2 Ge(μ-P)2 GeL2 ] 4 and bis(germyliumylidenyl)-substituted diphosphene [(L2 Ge-P=P-GeL2 )] 5 could also be obtained in moderate yields...
April 3, 2017: Angewandte Chemie
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