keyword
MENU ▼
Read by QxMD icon Read
search

plastics

keyword
https://www.readbyqxmd.com/read/28945034/-preparation-and-in-vitro-release-evaluation-of-slow-releasing-intrauterine-silicone-rubber-bar-made-of-panax-notoginseng-and-rubia-cordifolia
#1
Li Xu, Guang-Shang Cao, Xin Wang, Wen-Ming Li, Wei Shi, Pan-Pan Li, Fang Zhang, Yan-Nan Li
To prepare the intrauterine slow release silicone rubber bar made of Panax notoginseng and Rubia cordifolia, and finish its preliminary evaluation of in vitro releasing properties. The open mill method was used for plasticating of silicone rubber. The process parameters of the silicone rubber and drugs mixing were optimized by orthogonal test. The parameters of silicone rubber vulcanization was optimized by single factor test. The preliminary evaluation of in vitro release performance of the silicone rubber bar was conducted with ginsenoside Rg₁, ginsenoside Rb₁, notoginsenoside R₁, purpurin and rubimaillin as the indexes...
January 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28944979/dosimetric-validation-of-monaco-treatment-planning-system-on-an-elekta-versahd-linear-accelerator
#2
Ganesh Narayanasamy, Daniel L Saenz, Dewayne Defoor, Niko Papanikolaou, Sotirios Stathakis
The purpose of this study is to perform dosimetric validation of Monaco treatment planning system version 5.1. The Elekta VersaHD linear accelerator with high dose rate flattening filter-free photon modes and electron energies was used in this study. The dosimetric output of the new Agility head combined with the FFF photon modes warranted this investigation into the dosimetric accuracy prior to clinical usage. A model of the VersaHD linac was created in Monaco TPS by Elekta using commissioned beam data including percent depth dose curves, beam profiles, and output factors...
September 25, 2017: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28944843/microarray-and-bioinformatics-analyses-of-gene-expression-profiles-in-balb-c-murine-macrophage-polarization
#3
Li Jiang, Xueqin Li, Yingying Zhang, Mengying Zhang, Zongsheng Tang, Kun Lv
Macrophages possess the hallmark feature of plasticity, allowing them to undergo a dynamic transition between M1 and M2 polarized phenotypes. The aim of the present study was to screen for differentially-expressed genes (DEGs) that were associated with BALB/c murine macrophage polarization. The transcription profiles of three M1 and three M2 samples were obtained using microarray analysis. Based on the threshold of fold‑change >2.0 and P‑value <0.05, a total of 1,253 DEGs were identified, of which 696 were upregulated and 557 downregulated in M1 macrophages compared with M2 macrophages...
September 19, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28944727/changing-the-way-we-pay-for-health-care-is-value-the-new-plastic
#4
Robert P Navarro
Navarro is a clinical professor in the College of Pharmacy at the University of Florida, Gainesville, and is an assistant editor with the Journal of Managed Care and Specialty Pharmacy. Navarro reports consulting fees from Analysis Group, Amgen, Novartis, and Allergan.
October 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28944414/the-spectrum-of-skin-biopsies-and-excisions-in-a-pediatric-skin-center
#5
Martin Theiler, Kathrin Neuhaus, Katrin Kerl, Lisa Weibel
Little is known about the spectrum of pediatric skin disorders requiring biopsy/excision, their indication, impact on further management, and the accuracy of clinical diagnosis. We aimed to address these questions in the patient population seen at our Swiss University referral center for Pediatric Dermatology and Plastic Surgery. All skin biopsies/excisions performed in patients aged ≤ 16 years over a period of 2 years were retrospectively analyzed. A total of 506 samples were included. The majority of biopsies/excisions (n = 413, 82%) was performed for tumors, cysts, and hamartomas and 18% for other skin conditions...
September 25, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28944021/environmental-correlates-of-geographic-divergence-in-a-phenotypic-trait-a-case-study-using-bat-echolocation
#6
Tinyiko Maluleke, David S Jacobs, Henning Winker
Divergence in phenotypic traits may arise from the interaction of different evolutionary forces, including different kinds of selection (e.g., ecological), genetic drift, and phenotypic plasticity. Sensory systems play an important role in survival and reproduction, and divergent selection on such systems may result in lineage diversification. Such diversification could be largely influenced by selection in different environments as a result of isolation by environment (IbE). We investigated this process using geographic variation in the resting echolocation frequency of the horseshoe bat species, Rhinolophus damarensis, as a test case...
September 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28943887/mechanisms-of-cytokinesis-in-basidiomycetous-yeasts
#7
Sophie Altamirano, Srikripa Chandrasekaran, Lukasz Kozubowski
While mechanisms of cytokinesis exhibit considerable plasticity, it is difficult to precisely define the level of conservation of this essential part of cell division in fungi, as majority of our knowledge is based on ascomycetous yeasts. However, in the last decade more details have been uncovered regarding cytokinesis in the second largest fungal phylum, basidiomycetes, specifically in two yeasts, Cryptococcus neoformans and Ustilago maydis. Based on these findings, and current sequenced genomes, we summarize cytokinesis in basidiomycetous yeasts, indicating features that may be unique to this phylum, species-specific characteristics, as well as mechanisms that may be common to all eukaryotes...
March 2017: Fungal Biology Reviews
https://www.readbyqxmd.com/read/28943883/in-silico-analysis-of-binding-interaction-of-conantokins-with-nmda-receptors-for-potential-therapeutic-use-in-alzheimer-s-disease
#8
Maleeha Waqar, Sidra Batool
BACKGROUND: The N-methyl-D-aspartate (NMDA) receptors are glutamate receptors that play vital roles in central nervous system development and are involved in synaptic plasticity, which is an essential process for learning and memory. The subunit N-methyl D-aspartate receptor subtype 2B (NR2B) is the chief excitatory neurotransmitter receptor in the mammalian brain. Disturbances in the neurotransmission mediated by the NMDA receptor are caused by its overexposure to glutamate neurotransmitter and can be treated by its binding to an antagonist...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28943640/exercise-dependent-regulation-of-the-tumour-microenvironment
#9
REVIEW
Graeme J Koelwyn, Daniela F Quail, Xiang Zhang, Richard M White, Lee W Jones
The integrity and composition of the tumour microenvironment (TME) is highly plastic, undergoing constant remodelling in response to instructive signals derived from alterations in the availability and nature of systemic host factors. This 'systemic milieu' is directly modulated by host exposure to modifiable lifestyle factors such as exercise. Host exposure to regular exercise markedly reduces the risk of the primary development of several cancers and might improve clinical outcomes following a diagnosis of a primary disease...
September 25, 2017: Nature Reviews. Cancer
https://www.readbyqxmd.com/read/28943410/loss-of-reelin-protects-mice-against-arterial-thrombosis-by-impairing-integrin-activation-and-thrombus-formation-under-high-shear-conditions
#10
Nina Sarah Gowert, Irena Krüger, Meike Klier, Lili Donner, Friederike Kipkeew, Michael Gliem, Nicholas J Bradshaw, David Lutz, Sabrina Köber, Harald Langer, Sebastian Jander, Kerstin Jurk, Michael Frotscher, Carsten Korth, Hans H Bock, Margitta Elvers
Reelin is a secreted glycoprotein and essential for brain development and plasticity. Recent studies provide evidence that Reelin modifies platelet actin cytoskeletal dynamics. In this study we sought to dissect the contribution of Reelin in arterial thrombus formation. Here we analyzed the impact of Reelin in arterial thrombosis ex vivo and in vivo using Reelin deficient (reeler) and wildtype mice. We found that Reelin is secreted upon platelet activation and mediates signaling via glycoprotein (GP)Ib, the amyloid precursor protein (APP) and apolipoprotein E receptor 2 (ApoER2) to induce activation of Akt, extracellular signal-regulated kinase (Erk), SYK and Phospholipase Cγ2...
September 21, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28943393/regulation-of-spine-structural-plasticity-by-arc-arg3-1
#11
REVIEW
Thomas M Newpher, Scott Harris, Jasmine Pringle, Colleen Hamilton, Scott Soderling
Dendritic spines are actin-rich, postsynaptic protrusions that contact presynaptic terminals to form excitatory chemical synapses. These synaptic contacts are widely believed to be the sites of memory formation and information storage, and changes in spine shape are thought to underlie several forms of learning-related plasticity. Both membrane trafficking pathways and the actin cytoskeleton drive activity-dependent structural and functional changes in dendritic spines. A key molecular player in regulating these processes is the activity-regulated cytoskeleton-associated protein (Arc), a protein that has diverse roles in expression of synaptic plasticity...
September 21, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28943352/genital-reconstruction-for-the-transgendered-individual
#12
REVIEW
Marta R Bizic, Borko Stojanovic, Miroslav L Djordjevic
INTRODUCTION: Gender dysphoria is defined as one's belief that his/her body does not reflect his/her true "inner" identification of physical sex and requires medical and/or surgical treatment that will alter his/her body to better reflect what he/she believes is his/her true gender. OBJECTIVE: The aim was to describe current surgical techniques available in genital reconstruction for female-to-male (FTM) and male-to-female (MTF) transgender patients. STUDY DESIGN: We reviewed recently published papers concerning the most common procedures in genital reconstruction in FTM transgenders and in MTF transgenders...
September 1, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28943307/the-role-of-ultrasound-technology-in-plastic-surgery
#13
REVIEW
Tyler Safran, Kevin Gorsky, Alex Viezel-Mathieu, Jonathan Kanevsky, Mirko S Gilardino
INTRODUCTION: The modern medical era is in part characterized by the increased availability of portable imaging devices. Ultrasound devices are used for either high-resolution non-invasive imaging or as a focused acoustic energy source capable of sculpting and shaping tissue. Given the broad scope of the field, plastic and reconstructive surgeons have the unique ability to implement and tailor the use of ultrasound in a variety of clinical situations. This article will review novel uses for ultrasound in the field of plastic surgery...
September 13, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28943292/enhanced-fear-and-altered-neuronal-activation-in-forebrain-limbic-regions-of-cx3cr1-deficient-mice
#14
Inga Schubert, Rebecca Ahlbrand, Andrew Winter, Lauren Vollmer, Ian Lewkowich, Renu Sah
Mounting evidence supports immune dysfunction in psychiatric conditions such as post-traumatic stress disorder (PTSD). The association of immunomodulatory mechanisms with PTSD-relevant behavior and physiology is not well understood. Communication between neurons and microglia, resident immune cells of the central nervous system, is crucial for optimal regulation of behavior and physiology. In this regard, the fractalkine CX3CL1, secreted from neurons and its target, the microglial CX3CR1 receptor represent a primary neuron-microglia inter-regulatory system important for synaptic plasticity and function...
September 21, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/28943215/-forehead-rejuvenation
#15
M Prevot, C Thomet, B Cornette de Saint-Cyr, A Marchac, E Delay
The goal of this article is to provide a systemic approach to forehead rejuvenation. Fillers, botulinic toxin injections, transpalpebral, endoscopic or bicoronal brow lift must be usual techniques for every plastic surgeon in overall facial rejuvenation. Achieving a long lasting and aesthetically pleasing forehead is possible only with surgical techniques when aging is obvious.
September 21, 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/28943079/acidogenic-fermentation-of-the-organic-fraction-of-municipal-solid-waste-and-cheese-whey-for-bio-plastic-precursors-recovery-effects-of-process-conditions-during-batch-tests
#16
Francesca Girotto, Maria Cristina Lavagnolo, Alberto Pivato, Raffaello Cossu
The problem of fossil fuels dependency is being addressed through sustainable bio-fuels and bio-products production worldwide. At the base of this bio-based economy there is the efficient use of biomass as non-virgin feedstock. Through acidogenic fermentation, organic waste can be valorised in order to obtain several precursors to be used for bio-plastic production. Some investigations have been done but there is still a lack of knowledge that must be filled before moving to effective full scale plants. Acidogenic fermentation batch tests were performed using food waste (FW) and cheese whey (CW) as substrates...
September 21, 2017: Waste Management
https://www.readbyqxmd.com/read/28942480/acute-inhibition-of-estradiol-synthesis-impacts-vestibulo-ocular-reflex-adaptation-and-cerebellar-long-term-potentiation-in-male-rats
#17
Cristina V Dieni, Aldo Ferraresi, Jacqueline A Sullivan, Sivarosa Grassi, Vito E Pettorossi, Roberto Panichi
The vestibulo-ocular reflex (VOR) adaptation is an ideal model for investigating how the neurosteroid 17 beta-estradiol (E2) contributes to the modification of behavior by regulating synaptic activities. We hypothesized that E2 impacts VOR adaptation by affecting cerebellar synaptic plasticity at the parallel fiber-Purkinje cell (PF) synapse. To verify this hypothesis, we investigated the acute effect of blocking E2 synthesis on gain increases and decreases in adaptation of the VOR in male rats using an oral dose (2...
September 23, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28942347/a-novel-molecularly-imprinted-electrochemical-sensor-based-on-graphene-quantum-dots-coated-on-hollow-nickel-nanospheres-with-high-sensitivity-and-selectivity-for-the-rapid-determination-of-bisphenol-s
#18
Hanbing Rao, Xun Zhao, Xin Liu, Ji Zhong, Zhaoyi Zhang, Ping Zou, Yuanyuan Jiang, Xianxiang Wang, Yanying Wang
In this paper, a novel molecularly imprinted electrochemical sensor (MIECS) based on a glassy carbon electrode (GCE) modified with graphene quantum dots (GQDs) coated on hollow nickel nanospheres (hNiNS) for the rapid determination of bisphenol S (BPS) was proposed for the first time. HNiNS and GQDs as electrode modifications were used to enlarge the active area and electron-transport ability for amplifying the sensor signal, while molecularly imprinted polymer (MIP) film was electropolymerized by using pyrrole as monomer and BPS as template to detect BPS via cyclic voltammetry (CV)...
September 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28942048/the-cockroach-periplaneta-americana-as-a-potential-paratenic-host-of-the-lungworm-aelurostrongylus-abstrusus
#19
Luigi Falsone, Vito Colella, Ettore Napoli, Emanuele Brianti, Domenico Otranto
INTRODUCTION: Aelurostrongylus abstrusus is a well-known nematode affecting the respiratory system of felids worldwide. Snails and slugs act as intermediate hosts of this parasite, whereas rodents, birds and reptiles may serve as paratenic hosts. Periplaneta americana, the American brown cockroach, shares the same habitat and ecological features (e.g. nocturnal activity) with both snails and cats. The aim of this study was to evaluate the capability of P. americana to maintain alive A...
September 20, 2017: Experimental Parasitology
https://www.readbyqxmd.com/read/28941720/occurrence-and-distribution-of-oligomeric-organophosphorus-flame-retardants-in-different-treatment-stages-of-a-sewage-treatment-plant
#20
Kang Liang, Fengqiong Shi, Jingfu Liu
Oligomeric organophosphate esters (OOPEs) like 2,2-bis(chloromethyl)-propane-1,3-diyltetrakis (2-chloroethyl) bisphosphate (V6), resorcinol bis(diphenylphosphate) (RDP) and bisphenol A bis(diphenylphosphate) (BDP), are widely used as alternatives of Deca-BDE in plastic and electronic consumer products. However, studies on the environmental occurrence and fate of OOPEs are very scarce. This work studied the occurrence, distribution and fate of V6, BDP and RDP during the different treatment stages of a sewage treatment plant (STP) in Beijing, China...
September 20, 2017: Environmental Pollution
keyword
keyword
66037
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"