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https://www.readbyqxmd.com/read/28222511/evaluation-of-a-dna-a%C3%AE-42-vaccine-in-aged-nzw-rabbits-antibody-kinetics-and-immune-profile-after-intradermal-immunization-with-full-length-dna-a%C3%AE-42-trimer
#1
Doris Lambracht-Washington, Min Fu, Mary Wight-Carter, Matthew Riegel, Roger N Rosenberg
A pathological hallmark of Alzheimer's disease (AD) are amyloid plaques in the brain consisting of aggregated amyloid-β 42 peptide (Aβ42) derived from cellular amyloid-β protein precursor (AβPP). Based on successful experiments in mouse AD models, active immunization with Aβ42 peptide and passive immunizations with anti-Aβ42 antibodies were started in clinical trials. Active Aβ42 peptide immunization in humans had led to an inflammatory autoimmune response, and the trial was stopped. Passive immunizations had shown some effects in slowing AD pathology...
February 7, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28222465/autologous-conditioned-plasma-versus-placebo-injection-therapy-in-lateral-epicondylitis-of-the-elbow-a-double-blind-randomized-study
#2
Volker Schöffl, Wolfgang Willauschus, Felix Sauer, Thomas Küpper, Isabelle Schöffl, Christoph Lutter, Kolja Gelse, Jörg Dickschas
Introduction There are various therapeutic approaches to the treatment of lateral epicondylitis, a highly prevalent musculoskeletal disorder. Recently, injection therapy with autologous conditioned plasma (ACP) has shown promise as a new approach. Methods Set up as a prospective, double-blind, randomized controlled clinical trial, this study involved 50 patients with lateral epicondylitis. Following external randomization, 25 patients received one round of injection therapy with ACP (platelet rich plasma, PRP), while the remaining 25 patients received a placebo of 0...
February 21, 2017: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/28222406/leydig-cell-clustering-and-reinke-crystal-distribution-in-relation-to-hormonal-function-in-adult-patients-with-testicular-dysgenesis-syndrome-tds-including-cryptorchidism
#3
Rikke R Soerensen, Trine H Johannsen, Niels E Skakkebaek, Ewa Rajpert-De Meyts
OBJECTIVE: Testicular dysgenesis syndrome (TDS) comprises testicular germ cell cancer, cryptorchidism and some cases of male infertility and hypospadias, which can be linked to impairment of intrauterine gonadal development. Among histological signs of TDS, large Leydig cell (LC) clusters (micronodules) are frequently present. This study aimed to investigate possible associations of LC micronodules with the presence of Reinke crystals and hormonal function of LCs, the latter primarily reflected by serum concentrations of luteinising hormone (LH) and testosterone, in patients with TDS...
October 2016: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28222260/the-k-channel-a-multi-functional-architecture-for-dynamically-re-configurable-sample-processing-in-droplet-microfluidics
#4
Steven R Doonan, Ryan C Bailey
By rapidly creating libraries of thousands of unique, miniaturized reactors, droplet microfluidics provides a powerful method for automating high-throughput chemical analysis. In order to engineer in-droplet assays, microfluidic devices must add reagents into droplets, remove fluid from droplets, and perform other necessary operations, each typically provided by a unique, specialized geometry. Unfortunately, modifying device performance or changing operations usually requires re-engineering the device among these specialized geometries, a time-consuming and costly process when optimizing in-droplet assays...
February 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28222118/social-structural-behavioral-and-clinical-factors-influencing-retention-in-pre-exposure-prophylaxis-prep-care-in-mississippi
#5
Trisha Arnold, Lauren Brinkley-Rubinstein, Philip A Chan, Amaya Perez-Brumer, Estefany S Bologna, Laura Beauchamps, Kendra Johnson, Leandro Mena, Amy Nunn
Pre-exposure prophylaxis (PrEP) is a biomedical intervention that can reduce rates of HIV transmission when taken once daily by HIV-negative individuals. Little is understood about PrEP uptake and retention in care among the populations most heavily impacted by the HIV epidemic, particularly among young men who have sex with men (YMSM) in the Deep South. Therefore, this study explored the structural, social, behavioral, and clinical factors that affect PrEP use and retention in care among YMSM in Jackson, Mississippi...
2017: PloS One
https://www.readbyqxmd.com/read/28222072/discrepancies-in-central-review-re-testing-of-patients-with-er-positive-and-her2-negative-breast-cancer-in-the-optima-prelim-randomised-clinical-trial
#6
S E Pinder, A F Campbell, J M S Bartlett, A Marshall, D Allen, M Falzon, J A Dunn, A Makris, L Hughes-Davies, R C Stein
BACKGROUND: There is limited data on results of central re-testing of samples from patients with invasive breast cancer categorised in their local hospital laboratories as oestrogen receptor (ER) positive and human epidermal growth factor receptor homologue 2 (HER2) negative. METHODS: The Optimal Personalised Treatment of early breast cancer usIng Multiparameter Analysis preliminary study (OPTIMA prelim) was the feasibility phase of a randomised controlled trial to validate the use of multiparameter assay-directed chemotherapy decisions in the UK National Health Service (NHS)...
February 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28222048/comparison-of-running-economy-values-while-wearing-no-shoes-minimal-shoes-and-normal-running-shoes
#7
Robbie G Cochrum, Ryan T Connors, John M Coons, Dana K Fuller, Don W Morgan, Jennifer L Caputo
Cochrum, RG, Connors, RT, Coons, JM, Fuller, DK, Morgan, DW, and Caputo, JL. Comparison of running economy values while wearing no shoes, minimal shoes, and normal running shoes. J Strength Cond Res 31(3): 595-601, 2017-The purpose of this study was to quantify differences in running economy (RE) at 50 and 70% of each subject's velocity at V[Combining Dot Above]O2max (vV[Combining Dot Above]O2max) across barefoot and 2 mass, stack height, and heel-to-toe-drop controlled footwear conditions (minimal shoes and normal running shoes) in 9 recreational distance runners (mean age 26...
March 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28221808/decoupled-hierarchical-structures-for-suppression-of-leidenfrost-phenomenon
#8
Nazanin Farokhnia, Seyed Mohammad Sajadi, Peyman Irajizad, Hadi Ghasemi
Thermal management of high temperature systems through cooling droplets is limited by the existence of the Leidenfrost point (LFP), at which the formation of a continuous vapor film between a hot solid and a cooling droplet diminishes the heat transfer rate. This limit results in a bottleneck for the advancement of the wide spectrum of systems including high-temperature power generation, electronics/photonics, reactors, and spacecraft. Despite a long time effort on development of surfaces for suppression of this phenomenon, this limit has only shifted to higher temperatures, but still exists...
February 21, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28221777/rhenium-complexes-based-on-2-pyridyl-1-2-3-triazole-ligands-a-new-class-of-co2-reduction-catalysts
#9
H Y Vincent Ching, Xia Wang, Menglan He, Noemi Perujo Holland, Régis Guillot, Cyrine Slim, Sophie Griveau, Hélène C Bertrand, Clotilde Policar, Fethi Bedioui, Marc Fontecave
A series of [Re(N^N)(CO)3(X)] (N^N = diimine and X = halide) complexes based on 4-(2-pyridyl)-1,2,3-triazole (pyta) and 1-(2-pyridyl)-1,2,3-triazole (tapy) diimine ligands have been prepared and electrochemically characterized. The first ligand-based reduction process is shown to be highly sensitive to the nature of the isomer as well as to the substituents on the pyridyl ring, with the peak potential changing by up to 700 mV. The abilities of this class of complexes to catalyze the electroreduction and photoreduction of CO2 were assessed for the first time...
February 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28221719/influence-of-bouncing-and-assisted-autogenic-drainage-on-acid-gastro-oesophageal-reflux-in-infants
#10
Filip Van Ginderdeuren, Yvan Vandenplas, Michel Deneyer, Sylvie Vanlaethem, Ronald Buyl, Eric Kerckhofs
OBJECTIVES: To determine the influence of modern airway clearance techniques using assisted autogenic drainage (AAD), whether or not combined with bouncing, on acid gastro-oesophageal reflux (GOR) in infants <1 year. METHODS: In this controlled trial with intra-subject design infants were studied using oesophageal pH monitoring over 24 h, during which they received one 15 min session of bouncing, AAD or bouncing combined with AAD (BAAD). The number of reflux episodes (RE) and the refluxindex (RI) were the outcome measures...
February 21, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28221346/synthesis-of-ent-be-43547a1-reveals-a-potent-hypoxia-selective-anticancer-agent-and-uncovers-the-biosynthetic-origin-of-the-apd-cld-natural-products
#11
Nikolaj L Villadsen, Kristian M Jacobsen, Ulrik B Keiding, Esben T Weibel, Bjørn Christiansen, Thomas Vosegaard, Morten Bjerring, Frank Jensen, Mogens Johannsen, Thomas Tørring, Thomas B Poulsen
Tumour hypoxia is speculated to be a key driver of therapeutic resistance and metastatic dissemination. Consequently, the discovery of new potent agents that selectively target the hypoxic cell population may reveal new and untapped antitumour mechanisms. Here we demonstrate that the BE-43547 subclass of the APD-CLD (amidopentadienoate-containing cyclolipodepsipeptides) natural products possesses highly hypoxia-selective growth-inhibitory activity against pancreatic cancer cells. To enable this discovery, we have developed the first synthesis of the BE-43547-macrocyclic scaffold in 16 steps (longest linear sequence), which also allowed access to the full panel of relative stereoisomers and ultimately to the assignment of stereochemical configuration...
March 2017: Nature Chemistry
https://www.readbyqxmd.com/read/28221337/modulation-of-digital-flexor-tendon-healing-by-vascular-endothelial-growth-factor-gene-transfection-in-a-chicken-model
#12
W F Mao, Y F Wu, Q Q Yang, Y L Zhou, J B Tang
A major challenge in tendon injury is the weak intrinsic healing capacity of tendon, which may cause re-rupture after surgery. Growth factors are believed to be critical during tendon healing. This study aimed to investigate the effects of vascular endothelial growth factor (VEGF) genes delivered by adeno-associated virus (AAV) vectors on tendon healing and molecular events involved in a chicken model. One hundred and twenty eight deep flexor tendons in the long toes of chickens were completely transected and injected with 2 × 10(9) particles of AAV2-VEGF or saline before surgically repaired...
February 21, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28221206/significance-of-new-q-waves-and-their-location-in-postoperative-ecgs-after-elective-on-pump-cardiac-surgery-an-observational-cohort-study
#13
Eckhard Mauermann, Daniel Bolliger, Jens Fassl, Martin Grapow, Esther E Seeberger, Manfred D Seeberger, Miodrag Filipovic, Giovanna A L L Buse
BACKGROUND: The clinical significance of new pathological Q waves after on-pump cardiac surgery is uncertain. OBJECTIVES: To determine whether or not either the occurrence per se or the location of new pathological Q waves after on-pump cardiac surgery is associated with 12-month, all-cause mortality and/or major adverse cardiac events (MACEs). DESIGN: Observational cohort study. SETTING: Single university hospital from January 2007 to October 2010...
February 17, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28221098/ion-transport-by-ameloblasts-during-amelogenesis
#14
A L J J Bronckers
Hypomineralization of developing enamel is associated with changes in ameloblast modulation during the maturation stage. Modulation (or pH cycling) involves the cyclic transformation of ruffle-ended (RE) ameloblasts facing slightly acidic enamel into smooth-ended (SE) ameloblasts near pH-neutral enamel. The mechanism of ameloblast modulation is not clear. Failure of ameloblasts of Cftr-null and anion exchanger 2 ( Ae2)-null mice to transport Cl(-) into enamel acidifies enamel, prevents modulation, and reduces mineralization...
March 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28221038/molecular-and-electronic-structures-of-m2o7-m-mn-tc-re
#15
Keith V Lawler, Bradley C Childs, Daniel S Mast, Kenneth R Czerwinski, Alfred P Sattelberger, Frederic Poineau, Paul M Forster
The molecular and electronic structures of the group 7 heptoxides were investigated by computational methods as both isolated molecules and in the solid-state. The metal-oxygen-metal bending angle of the single molecule increased with increasing atomic number, with Re2O7 preferring a linear structure. Natural bond orbital and localized orbital bonding analyses indicate that there is a three-center covalent bond between the metal atoms and the bridging oxygen, and the increasing ionic character of the bonds favors larger bond angles...
February 21, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28220895/resetting-predator-baselines-in-coral-reef-ecosystems
#16
Darcy Bradley, Eric Conklin, Yannis P Papastamatiou, Douglas J McCauley, Kydd Pollock, Amanda Pollock, Bruce E Kendall, Steven D Gaines, Jennifer E Caselle
What did coral reef ecosystems look like before human impacts became pervasive? Early efforts to reconstruct baselines resulted in the controversial suggestion that pristine coral reefs have inverted trophic pyramids, with disproportionally large top predator biomass. The validity of the coral reef inverted trophic pyramid has been questioned, but until now, was not resolved empirically. We use data from an eight-year tag-recapture program with spatially explicit, capture-recapture models to re-examine the population size and density of a key top predator at Palmyra atoll, the same location that inspired the idea of inverted trophic biomass pyramids in coral reef ecosystems...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220837/a-novel-role-of-the-organizer-gene-goosecoid-as-an-inhibitor-of-wnt-pcp-mediated-convergent-extension-in-xenopus-and-mouse
#17
Bärbel Ulmer, Melanie Tingler, Sabrina Kurz, Markus Maerker, Philipp Andre, Dina Mönch, Marina Campione, Kirsten Deißler, Mark Lewandoski, Thomas Thumberger, Axel Schweickert, Abraham Fainsod, Herbert Steinbeißer, Martin Blum
Goosecoid (Gsc) expression marks the primary embryonic organizer in vertebrates and beyond. While functions have been assigned during later embryogenesis, the role of Gsc in the organizer has remained enigmatic. Using conditional gain-of-function approaches in Xenopus and mouse to maintain Gsc expression in the organizer and along the axial midline, neural tube closure defects (NTDs) arose and dorsal extension was compromised. Both phenotypes represent convergent extension (CE) defects, arising from impaired Wnt/planar cell polarity (PCP) signaling...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220791/quantification-of-re-absorption-and-re-emission-processes-to-determine-photon-recycling-efficiency-in-perovskite-single-crystals
#18
Yanjun Fang, Haotong Wei, Qingfeng Dong, Jinsong Huang
Photon recycling, that is, iterative self-absorption and re-emission by the photoactive layer itself, has been speculated to contribute to the high open-circuit voltage in several types of high efficiency solar cells. For organic-inorganic halide perovskites that have yielded highly efficient photovoltaic devices, however, it remains unclear whether the photon recycling effect is significant enough to improve solar cell efficiency. Here we quantitatively evaluate the re-absorption and re-emission processes to determine photon recycling efficiency in hybrid perovskite with its single crystals by measuring the ratio of the re-emitted photons to the initially excited photons, which is realized by modulating their polarization to differentiate them...
February 21, 2017: Nature Communications
https://www.readbyqxmd.com/read/28220540/results-of-surgical-excision-of-urethral-prolapse-in-symptomatic-patients
#19
Mary E Hall, Tola Oyesanya, Anne P Cameron
AIM: Here, we present the clinical presentation and surgical outcomes of women with symptomatic urethral prolapse presenting to our institution over 20 years, and seek to provide treatment recommendations for management of symptomatic urethral prolapse and caruncle. METHODS: A retrospective review of medical records from female patients who underwent surgery for symptomatic urethral prolapse from June 1995 to August 2015 was performed. Surgical technique consisted of a four-quadrant excisional approach for repair of urethral prolapse...
February 21, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28220283/four-new-species-of-paradiscogaster-yamaguti-1934-digenea-faustulidae-from-batfishes-perciformes-ephippidae-on-the-great-barrier-reef-australia
#20
Pablo E Diaz, Scott C Cutmore, Thomas H Cribb
Examination of three species of batfishes (Teleostei: Epphippidae) from off Lizard and Heron Islands on the Great Barrier Reef led to the discovery of specimens of the trematode genus Paradiscogaster Yamaguti, 1934 (Digenea: Faustulidae). Morphological analysis demonstrated that the new specimens represented four morphotypes which we interpret to be new species: Paradiscogaster martini n. sp., P. vichovae n. sp. and P. brayi n. sp. from Platax orbicularis (Forsskål) and P. pinnatus (Linnaeus) off Lizard Island, and P...
February 20, 2017: Systematic Parasitology
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