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https://www.readbyqxmd.com/read/28637094/acclimation-responses-to-high-light-by-guazuma-ulmifolia-lam-malvaceae-leaves-at-different-stages-of-development
#1
Anderson Kikuchi Calzavara, Juliana Silva Rocha, Geovana Lourenço, Karina Sanada, Cristiano Medri, Edmilson Bianchini, José Antonio Pimenta, Renata Stolf-Moreira, Halley Caixeta Oliveira
The recomposition of deforested environments requires the prior acclimation of seedlings to full sun in nurseries. Seedlings can overcome excessive light either through the acclimation of pre-existing fully expanded leaves or through the development of new leaves that are acclimated to the new light environment. Here, we compared the acclimation capacity of mature (MatL, fully expanded at the time of transfer) and newly expanded leaves (NewL, expanded after the light shift) of Guazuma ulmifolia Lam. (Malvaceae) seedlings to high light...
June 21, 2017: Plant Biology
https://www.readbyqxmd.com/read/28636959/the-enteric-network-interactions-between-the-immune-and-nervous-systems-of-the-gut
#2
REVIEW
Bryan B Yoo, Sarkis K Mazmanian
Interactions between the nervous and immune systems enable the gut to respond to the variety of dietary products that it absorbs, the broad spectrum of pathogens that it encounters, and the diverse microbiome that it harbors. The enteric nervous system (ENS) senses and reacts to the dynamic ecosystem of the gastrointestinal (GI) tract by translating chemical cues from the environment into neuronal impulses that propagate throughout the gut and into other organs in the body, including the central nervous system (CNS)...
June 20, 2017: Immunity
https://www.readbyqxmd.com/read/28636805/a-hybrid-phantom-system-for-patient-skin-and-organ-dosimetry-in-fluoroscopically-guided-interventions
#3
David Borrego, Daniel Siragusa, Stephen Balter, Wesley E Bolch
To investigate calibrations for improved estimates of skin dose and to develop software for computing absorbed organ doses for fluoroscopically guided interventions (FGIs) with the use of radiation dose structured reports (RDSR) and the UF/NCI family of hybrid computational phantoms METHODS AND MATERIALS: Institutional review board approval was obtained for this retrospective study in which ten RDSRs were selected for their high cumulative reference air kerma values. Skin doses were computed using the University of Florida's rapid in-clinic peak skin dose algorithm (or UF-RIPSA)...
June 21, 2017: Medical Physics
https://www.readbyqxmd.com/read/28636330/water-in-ionic-liquid-lubricants-friend-and-foe
#4
Oscar Y Fajardo, Fernando Bresme, Alexei A Kornyshev, Michael Urbakh
To a greater or lesser extent, most room temperature ionic liquids (RTILs) absorb water from humid air. Penetration of water into the lubricating nanoscale film may affect its equilibrium structure and dynamic properties and thus influence the ability of RTILs as lubricants to reduce friction between solid surfaces. Here we investigate the impact of hydration on lubrication using non-equilibrium molecular dynamics simulations. Water adsorption changes both the ionic liquid molecules orientation and the slip conditions at the solid-liquid interfaces, resulting in a reduced resistance against squeezing-out of the lubricant by an external load...
June 21, 2017: ACS Nano
https://www.readbyqxmd.com/read/28636208/a-phase-i-trial-of-prn1008-a-novel-reversible-covalent-inhibitor-of-bruton-s-tyrosine-kinase-in-healthy-volunteers
#5
Patrick F Smith, Janakan Krishnarajah, Philip A Nunn, Ron J Hill, Dane Karr, D Tam, Mohammad Masjedizadeh, Jens O Funk, Steve G Gourlay
AIM: To evaluate the safety, tolerability, and PK/PD of PRN1008, a novel BTK inhibitor, in healthy volunteers, and thus determine the dose range for future clinical studies. METHODS: This was a two-part randomized, placebo controlled study in healthy volunteers using a liquid formulation. Part I was a single ascending dose design with dose levels of 50 to 1200 mg (n=6 active, 2 placebo per cohort); Part II was a multiple ascending dose design, with dose regimens ranging from 300 mg to 900 mg daily, either qd or bd for 10 days...
June 21, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28635637/a-short-term-biological-indicator-for-long-term-kidney-damage-after-radionuclide-therapy-in-mice
#6
Giovanni Pellegrini, Klaudia Siwowska, Stephanie Haller, Daniel J Antoine, Roger Schibli, Anja Kipar, Cristina Müller
Folate receptor (FR)-targeted radionuclide therapy using folate radioconjugates is of interest due to the expression of the FR in a variety of tumor types. The high renal accumulation of radiofolates presents, however, a risk of radionephropathy. A potential option to address this challenge would be to use radioprotectants, such as amifostine. Methods for early detection of kidney damage that-in this case-cannot be predicted based on dose estimations, would facilitate the development of novel therapies. The aim of this study was, therefore, to assess potentially changing levels of plasma and urine biomarkers and to determine DNA damage at an early stage after radiofolate application...
June 21, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28635369/comparison-of-knotless-barbed-suture-versus-monofilament-suture-in-the-oral-cavity-of-cats
#7
Corinne L Durand
The present study compares a knotless, barbed, absorbable suture material against a conventional monofilament absorbable suture material in oral mucosal wound closure. The parameters measured include time of closure and differences in healing at 2 and 4 weeks postoperatively. A prospective study comparing a knotless, barbed suture system with conventional absorbable sutures was undertaken in 19 cats. Nineteen cats had full mouth extractions performed. Following the extraction procedures, the incisions in the arcades (maxillary and mandibular) were apposed with the barbed, knotless suture system in a continuous pattern on one side and with a conventional smooth suture in an interrupted pattern on the other...
January 1, 2017: Journal of Veterinary Dentistry
https://www.readbyqxmd.com/read/28635220/-the-bisphenol-a-enhanced-activity-of-thyroid-carcinoma-cell-line-b-cpap-is-inhibited-by-icarrin
#8
C M Zheng, X Z Liu, Q L Li, J F Wang, Z Tan, M H Ge
Objective: To investigate the effect of icariin (ICA) on the bisphenol A (BPA)-enhanced proliferation function of thyroid carcinoma cell B-CPAP and underlying mechanism. Methods: The proliferation of Gastric B-CPAP cell line was evaluated by cell counting kit-8 (CCK-8). Apoptosis and ROS expression in B-CPAP cells were detected by flow cytometry. The expression of superoxide dismutase (SOD) and malondialdehyde (MDA) in B-CPAP cells were measured by individual assay kits. The expressions of Bcl-2 and γ-HA2X were detected by Western blot...
June 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28635174/flash-light-millisecond-self-assembly-of-high-%C3%AF-block-copolymers-for-wafer-scale-sub-10-nm-nanopatterning
#9
Hyeong Min Jin, Dae Yong Park, Seong-Jun Jeong, Gil Yong Lee, Ju Young Kim, Jeong Ho Mun, Seung Keun Cha, Joonwon Lim, Jun Soo Kim, Kwang Ho Kim, Keon Jae Lee, Sang Ouk Kim
One of the fundamental challenges encountered in successful incorporation of directed self-assembly in sub-10 nm scale practical nanolithography is the process compatibility of block copolymers with a high Flory-Huggins interaction parameter (χ). Herein, reliable, fab-compatible, and ultrafast directed self-assembly of high-χ block copolymers is achieved with intense flash light. The instantaneous heating/quenching process over an extremely high temperature (over 600 °C) by flash light irradiation enables large grain growth of sub-10 nm scale self-assembled nanopatterns without thermal degradation or dewetting in a millisecond time scale...
June 21, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28634633/erratum-to-nd-yag-laser-irradiation-associated-with-fluoridated-gels-containing-photo-absorbers-in-the-prevention-of-enamel-erosion
#10
L G S Pereira, S H Joao-Souza, S J C Bezerra, A B Borges, A C C Aranha, T Scaramucci
No abstract text is available yet for this article.
June 20, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28633520/ion-selective-nanosensor-for-photoacoustic-and-fluorescence-imaging-of-potassium
#11
Chang Heon Lee, Jeff Folz, Wuliang Zhang, Janggun Jo, Joel W Y Tan, Xueding Wang, Raoul Kopelman
Ion-selective optodes (ISOs), the optical analog of ion-selective electrodes, have played an increasingly important role in chemical and biochemical analysis. Here we extend this technique to ion-selective photo-acoustic optodes (ISPAOs) that serve at the same time as fluorescence-based ISOs, and apply it specifically to potassium (K+). Notably, the potassium ion is one of the most abundant cations in biological systems, involved in numerous physiological and pathological processes. Furthermore, it has been recently reported that the presence of abnormal extracellular potassium concentrations in tumors suppresses the immune responses and thus suppresses immunotherapy...
June 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28633332/anti-fas2-igm-antibodies-in-fasciola-hepatica-infected-patients-with-positive-igg-serology
#12
Liliya Kazantseva, María Del Pilar García Lázaro, Patricia Herrera-Velit, Jose R Espinoza
Background: Fascioliasis is an infectious disease caused by parasites Fasciola hepatica and F. gigantica. Humans are infected by the consumption of vegetables and water contaminated with the infective form of the parasite. Materials and Methods: In this study, an IgM-ELISA with the cysteine proteinase Fas2 antigen was evaluated with sera from 76 patients infected with F. hepatica, 24 patients with other parasite infections and 84 healthy volunteers. Results: IgM-ELISA resulted in 43% positives in F...
March 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28633312/the-influence-of-dekkera-bruxellensis-on-the-transcriptome-of-saccharomyces-cerevisiae-and-on-the-aromatic-profile-of-synthetic-wine-must
#13
Janez Kosel, Neža Cadež, Dorit Schuller, Laura Carreto, Ricardo Franco-Duarte, Peter Raspor
A double compartment membrane system was constructed in order to systematically study possible microbial interactions between yeasts Saccharomyces cerevisiae and Dekkera bruxellensis and their impact on wine aroma. The presence of D. bruxellensis induced 77 transcripts of S. cerevisiae. These were mostly of unknown function; however, some were involved in thiamine biosynthesis and in amino acid and polyamine transport, suggesting a competitive relationship between the two yeast species. Among the transcripts with no biological function, 14 of them were found to be the members of the PAU gene family that is associated with response to anaerobiosis stress...
June 1, 2017: FEMS Yeast Research
https://www.readbyqxmd.com/read/28633131/dose-calculation-using-haar-wavelets-with-buildup-correction
#14
K Belkadhi, K Elhamdi, M Bhar, K Manai
In this work, we focus on the buildup correction of dose calculation using Haar wavelets in the Tunisian gamma irradiation facility. The buildup effect of gamma rays was used to adjust absorbed dose calculation for different depth in the irradiated products. A buildup study with different product densities was carried out to generalize the dose adjustment approach to any product at any depth.
June 15, 2017: Applied Radiation and Isotopes
https://www.readbyqxmd.com/read/28632959/defect-based-modulation-of-opto-electronic-properties-for-bio-functionalized-hexagonal-boron-nitride-nanosheets
#15
Mehdi Shakourian-Fard, Hadiseh Heydari, Ganesh Kamath
Defect engineering could potentially allow for dramatic tuning of optoelectronic properties of two-dimensional materials. With the help of density functional theory (DFT) calculations, we present a systematic study of the DNA Nucleobases (NBs) adsorbed on hexagonal boron-nitride nanoflake (h-BNNF) and boron and nitrogen monovacancies. The presence of such VN and VB defects increases the binding strength of NBs by 9 kcal/mol and 34 kcal/mol, respectively (h-BNNF-VB> h-BNNF-VN> h-BNNF). A more negative electrostatic potential at the B vacancy-site makes h-BNNF-VB surface more reactive than h-BNNF-VN surface enabling H-bonding interactions with NBs...
June 20, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28632878/identification-of-novel-g-protein-coupled-receptor-143-ligands-as-pharmacologic-tools-for-investigating-x-linked-ocular-albinism
#16
Elisabetta De Filippo, Prashiela Manga, Anke C Schiedel
Purpose: GPR143 regulates melanosome biogenesis and organelle size in pigment cells. The mechanisms underlying receptor function remain unclear. G protein-coupled receptors (GPCRs) are excellent pharmacologic targets; thus, we developed and applied a screening approach to identify potential GPR143 ligands and chemical modulators. Methods: GPR143 interacts with β-arrestin; we therefore established a β-arrestin recruitment assay to screen for compounds that modulate activity...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28632776/dynamic-knee-valgus-alignment-influences-impact-attenuation-in-the-lower-extremity-during-the-deceleration-phase-of-a-single-leg-landing
#17
Akihiro Tamura, Kiyokazu Akasaka, Takahiro Otsudo, Jyunya Shiozawa, Yuka Toda, Kaori Yamada
Dynamic knee valgus during landings is associated with an increased risk of non-contact anterior cruciate ligament (ACL) injury. In addition, the impact on the body during landings must be attenuated in the lower extremity joints. The purpose of this study was to investigate landing biomechanics during landing with dynamic knee valgus by measuring the vertical ground reaction force (vGRF) and angular impulses in the lower extremity during a single-leg landing. The study included 34 female college students, who performed the single-leg drop vertical jump...
2017: PloS One
https://www.readbyqxmd.com/read/28632647/high-osteogenic-potential-of-adipose-and-muscle-derived-mesenchymal-stem-cells-in-spinal-ossification-model-mice
#18
Xizhe Liu, Gentaro Kumagai, Kanichiro Wada, Toshihiro Tanaka, Toru Asari, Kazuki Oishi, Taku Fujita, Hiroki Mizukami, Ken-Ichi Furukawa, Yasuyuki Ishibashi
STUDY DESIGN: Basic experiments in a mouse model of ossification of the posterior longitudinal ligament (OPLL). OBJECTIVE: To assess the osteogenic potential of mesenchymal stem cells (MSCs) obtained from muscle and adipose tissue in Tiptoe-walking (ttw) mice, in which cervical OPLL compresses the spinal cord and causes motor and sensory dysfunction. SUMMARY OF BACKGROUND DATA: In humans, MSCs have been implicated in the pathogenesis of cervical OPLL...
June 19, 2017: Spine
https://www.readbyqxmd.com/read/28632500/photon-detection-efficiency-of-laboratory-based-x-ray-phase-contrast-imaging-techniques-for-mammography-a-monte-carlo-study
#19
Somayeh Saghamanesh, Seyed Mohammad Reza Aghamiri, Alireza Kamali-Asl, Wataru Yashiro
An important challenge in real-world biomedical applications of X-ray phase contrast imaging (XPCI) techniques is the efficient use of the photon flux generated by an incoherent and polychromatic X-ray source. This efficiency can directly influence dose and exposure time and ideally should not affect the superior contrast and sensitivity of XPCI. In this paper, we present a quantitative evaluation of the photon detection efficiency of two laboratory-based XPCI methods, grating interferometry (GI) and coded-aperture (CA)...
June 20, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28632178/an-increased-dietary-supply-of-medium-chain-fatty-acids-during-early-weaning-in-rodents-prevents-excessive-fat-accumulation-in-adulthood
#20
Bert J M van de Heijning, Annemarie Oosting, Diane Kegler, Eline M van der Beek
Medium-chain fatty acids (MCFA) are a directly and readily absorbed source of energy. Exposure early-in-life to increased MCFA levels might affect development and impact (lipid) metabolism later in life. We tested whether an increased MCFA intake early-in-life positively affects adult body composition and metabolic status when challenged by a western-style diet (WSD). Male offspring of C57Bl/6j mice and Wistar rats were fed a control diet (CTRL; 10 w% fat, 14% MCFA) or a medium-chain triglycerides (MCT) diet with 20% MCFA until postnatal (PN) day 42, whereupon animals were fed a WSD (10 w% fat) until PN day 98...
June 20, 2017: Nutrients
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