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https://www.readbyqxmd.com/read/28102954/dosimetric-impact-of-lipiodol-in-stereotactic-body-radiation-therapy-on-liver-after-trans-arterial-chemoembolization
#1
Daisuke Kawahara, Shuichi Ozawa, Akito Saito, Teiji Nishio, Tomoki Kimura, Tatsuhiko Suzuki, Kazunari Hioki, Takeo Nakashima, Yoshimi Ohno, Yuji Murakami, Yasushi Nagata
PURPOSE: Stereotactic body radiation therapy (SBRT) combining trans-arterial chemoembolization (TACE) with Lipiodol is expected to improve local control. This study is aimed to estimate the dose enhancement in Lipiodol's proximity and to evaluate the dose calculation accuracy of the Acuros XB (AXB) algorithm and anisotropic analytical algorithm (AAA) in the Eclipse treatment planning system (TPS) (ver. 11, Varian Medical Systems, Palo Alto, USA), compared with that of the Monte Carlo (MC) calculation (using BEAMnrc/DOSXYZnrc code) for a virtual phantom and a treatment plan for liver SBRT after TACE...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28102934/crosstalk-between-angiotensin-and-the-non-amyloidogenic-pathway-of-alzheimer-s-amyloid-precursor-protein
#2
Anna Maria Kanarek, Annika Wagner, Jim Küppers, Michael Gütschow, Rolf Postina, Elzbieta Kojro
The association between hypertension and an increased risk for Alzheimer's disease (AD) and dementia is well established. Many data suggest that modulation of the renin-angiotensin system may be meaningful for the prevention and therapy of neurodegenerative disorders, in particular AD. Proteolytic cleavage of the amyloid precursor protein (APP) by α-secretase precludes formation of neurotoxic Aβ peptides and is expected to counteract the development of AD. An established approach for the up-regulation of α-secretase cleavage is activation of G protein-coupled receptors (GPCRs)...
January 19, 2017: FEBS Journal
https://www.readbyqxmd.com/read/28102913/autumn-photosynthetic-decline-and-growth-cessation-in-seedlings-of-white-spruce-are-decoupled-under-warming-and-photoperiod-manipulations
#3
Joseph R Stinziano, Danielle A Way
Climate warming is expected to increase the seasonal duration of photosynthetic carbon fixation and tree growth in high latitude forests. However photoperiod, a crucial cue for seasonality, will remain constant, which may constrain tree responses to warming. We investigated the effects of temperature and photoperiod on weekly changes in photosynthetic capacity, leaf biochemistry and growth in seedlings of a boreal evergreen conifer, white spruce (Picea glauca (Moench) Voss). Warming delayed autumn declines in photosynthetic capacity, extending the period when seedlings had high carbon uptake...
January 19, 2017: Plant, Cell & Environment
https://www.readbyqxmd.com/read/28102900/metabolic-theory-predicts-animal-self-thinning
#4
Tomas Jonsson
1.The Metabolic Theory of Ecology (MTE) predicts observed patterns in ecology based on metabolic rates of individuals. The theory is influential but also criticized for a lack of firm empirical evidence confirming MTE's quantitative predictions of processes, e.g. outcome of competition, at population or community level. 2.Self-thinning is a well-known population level phenomenon among plants, but a much less studied phenomenon in animal populations and no consensus exists on what a universal thinning slope for animal populations might be, or if it exists...
January 19, 2017: Journal of Animal Ecology
https://www.readbyqxmd.com/read/28102879/the-conservative-and-pharmacological-management-of-chronic-subdural-haematoma
#5
Jehuda Soleman, Fabio Noccera, Luigi Mariani
Chronic subdural haematoma (cSDH), one of the most common neurosurgical entities, occurs typically in elderly patients. The incidence is expected to double by the year 2030, owing to the continuous aging of the population. Surgery is usually the treatment of choice, but conservative treatment may be a good alternative in some situations. We provide a systematic review of studies analysing the conservative treatment options and the natural history of cSDH. Of 231 articles screened, 35 were included in this systematic review...
January 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28102877/feasibility-acceptability-and-construct-validity-of-eq-5d-in-systemic-sclerosis
#6
Roberta Gualtierotti, Francesca Ingegnoli, Luciana Scalone, Paolo Cortesi, Eleonora Bruschi, Maria Gerosa, Pier Luigi Meroni
BACKGROUND: Systemic sclerosis is a chronic disabling disease that is often associated with severe physical and psychological impairment. Nonetheless, health-related quality of life (HRQoL) in patients with systemic sclerosis is often left behind in clinical practice and research. One of the reasons for this lack of evaluation is the current use of tools, such as the short form-36 (SF-36) questionnaire, that are complete but complicated to use in everyday routine. Other self-reported outcome measures such as the health assessment questionnaire (HAQ) are simple, but specifically designed for physical disability...
January 19, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28102739/perceptions-of-mild-traumatic-brain-injury-in-adults-a-scoping-review
#7
Katie Mah, Andrea Hickling, Nick Reed
PURPOSE: The purpose of this article is to synthesise the scholarly literature related to perceptions of mild traumatic brain injury (mTBI) and health outcomes in an adult population. METHODS: A scoping review was undertaken. An electronic search of seven databases was conducted. Studies were included if (1) they related to perceptions of mild traumatic brain injury, (2) the population was adults with mild traumatic brain injury, and (3) health outcomes were reported...
January 19, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28102738/optimization-and-partial-characterization-of-intracellular-anticandidal-protein-from-aspergillus-giganteus-mtcc-8408-using-taguchi-doe
#8
Debashis Dutta, Mira Debnath Das
A new intracellular antifungal protein (afp) production with average molecular weight 24.3 kDa and yield of 0.65 ± 0.1 mg/gram dry cell weight (gdcw) of mycelia in submerged fermentation of Aspergillus giganteus MTCC 8408 was optimized. Taguchi's DOE (design of experiment) L27 orthogonal array (OA) was constructed using Qualitek-4 software with 8 most influensive factors namely, culture pH, temperature, slant age, inoculum volume, agitation and KH2PO4. Scanning electron microscopy (SEM) was used to correlate the effect of selected factors on fungal cell morphology and afp production...
January 19, 2017: Bioengineered
https://www.readbyqxmd.com/read/28102730/alloimmunisation-in-transfused-patients-serial-cross-matching-in-a-population-of-hospitalised-cats
#9
Layla Hourani, Christiane Weingart, Barbara Kohn
Objectives Cross-matching is currently recommended as part of pre-transfusion testing for repeat transfusions in cats 4 days after having received an initial transfusion. This prospective study determined when and if cats developed positive cross-match (CM) results after having been transfused with AB-compatible blood. Methods Donors were selected according to standard transfusion safety protocols. Twenty-one hospitalised anaemic recipients (blood type A: n = 20; blood type B: n = 1) received 1-4 (median 2) whole-blood transfusions (WBTs) over 1-6 days (median 2) in 33 transfusion instances...
January 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28102609/immunogenicity-of-hepatic-differentiated-human-umbilical-cord-mesenchymal-stem-cells-promoted-by-porcine-decellularized-liver-scaffolds
#10
Yi Li, Qiong Wu, Yujia Wang, Li Li, Fei Chen, Yujun Shi, Hong Bu, Ji Bao
Cell-based approaches, including hepatocyte transplantation and tissue-engineered livers, offer promising alternatives and are expected to help support patients with liver diseases until liver transplantation or recovery via regeneration of the damaged liver. However, the success of cell therapies remains dependent on how well the cells are accepted after transplantation and is directly related to their degree of immunogenicity. In this study, hepatic differentiation of human umbilical cord mesenchymal stem cells (hUC-MSCs) was induced in the traditional monolayer (2D) culture and newly established three-dimensional (3D) aggregation culture with the porcine decellularized liver scaffold (DLS) system (3D-DLS)...
January 19, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28102571/developing-a-cultural-competence-inventory-for-nurses-in-china
#11
D Cai, W Kunaviktikul, A Klunklin, A Sripusanapan, P K Avant
AIM: To develop and psychometrically test the Cultural Competence Inventory for Nurses in China. BACKGROUND: Cultural competence is expected worldwide from nurses due to the increasing cultural diversity of people in healthcare establishments. Yet, no cultural competence framework or instrument for nurses has been identified to guide nursing practice in China where the cultural diversity of the populations and the characteristics of the healthcare system are different from those of the West...
January 19, 2017: International Nursing Review
https://www.readbyqxmd.com/read/28102503/reducing-unintended-pregnancies-as-a-strategy-to-avert-zika-related-microcephaly-births-in-the-united-states-a-simulation-study
#12
Katherine A Ahrens, Jennifer A Hutcheon, Loretta Gavin, Susan Moskosky
Introduction There is increasing evidence that infection with the Zika virus (ZIKV) during pregnancy can lead to severe brain abnormalities in infants exposed in utero. The objective of our analysis was to estimate the contribution of enhanced contraception access to averting ZIKV-related microcephaly births in the United States, alone and in combination with another possible strategy, anti-ZIKV vaccination. Methods We used Monte Carlo sampling techniques (n = 100,000 simulations) to estimate the number of microcephaly births expected under strategies of enhanced contraception only, vaccination only, both enhanced contraception and vaccination, and status quo (no intervention)...
January 19, 2017: Maternal and Child Health Journal
https://www.readbyqxmd.com/read/28102495/pregnancy-after-roux-en-y-gastric-bypass-nutritional-and-biochemical-aspects
#13
Jessica Cristina Gimenes, Carolina Ferreira Nicoletti, Marcela Augusta de Souza Pinhel, Bruno Affonso Parenti de Oliveira, Wilson Salgado Júnior, Júlio Sérgio Marchini, Carla Barbosa Nonino
INTRODUCTION: Although pregnancy after bariatric surgery is related to risk reduction, nutritional complications may occur. This study aimed to evaluate nutritional and biochemical indicators of women who became pregnant after Roux en Y gastric bypass (RYGB). MATERIALS AND METHODS: We carried out a retrospective study with women who became pregnant after RYGB. We evaluated anthropometric, biochemical, and dietary intake indicators in the preoperative period and before, during, and after pregnancy by analysis of medical records...
January 19, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28102462/cerebellar-pathways-in-mouse-model-of-purkinje-cell-degeneration-detected-by-high-angular-resolution-diffusion-imaging-tractography
#14
Yuri Kanamaru, Jianxue Li, Natalie Stewart, Richard L Sidman, Emi Takahashi
Cerebellar MR imaging has several challenging aspects, due to the fine, repetitive layered structure of cortical folia with underlying axonal pathways. In this MR study, we imaged with high-angular resolution diffusion imaging (HARDI) abnormal cerebellar cortical structure (gray matter) and myelinated axonal pathways (white matter) of a mouse spontaneous mutation, Purkinje cell degeneration (pcd), in which almost all Purkinje neurons degenerate, mainly between postnatal days 20 and 35. Mouse brains at postnatal day 20 (P20) and at 8 months were scanned, and known or expected abnormalities, such as reduction of the white matter volume, disorganized pathways likely linked to parallel fibers, mossy fibers, and other fibers running from/to the cerebellar cortex were observed in mutant mice...
January 19, 2017: Cerebellum
https://www.readbyqxmd.com/read/28102394/markedly-enhanced-visible-light-photocatalytic-h2-generation-over-g-c3n4-nanosheets-decorated-by-robust-nickel-phosphide-ni12p5-cocatalysts
#15
Jiuqing Wen, Jun Xie, Rongchen Shen, Xin Li, XingYi Luo, Hongdan Zhang, Aiping Zhang, Guican Bi
In the present work, nickel phosphide (Ni12P5) modified graphitic carbon nitride (g-C3N4) nanosheets were synthesized by a simple grinding method. The structural characterization clearly proved that Ni12P5 nanoparticles were well loaded on the surface of g-C3N4 nanosheets. The photocatalytic activity of the composites was tested by catalyzing the reduction of water to hydrogen under visible light irradiation. The results demonstrate that Ni12P5 is an efficient co-catalyst for photocatalytic H2 production of g-C3N4 nanosheets...
January 19, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28102384/predicting-point-defect-equilibria-across-oxide-hetero-interfaces-model-system-of-zro2-cr2o3
#16
Jing Yang, Mostafa Youssef, Bilge Yildiz
We present a multi-scale approach to predict equilibrium defect concentrations across oxide/oxide hetero-interfaces. There are three factors that need to be taken into account simultaneously for computing defect redistribution around the hetero-interfaces: the variation of local bonding environment at the interface as epitomized in defect segregation energies, the band offset at the interface, and the equilibration of the chemical potentials of species and electrons via ionic and electronic drift-diffusion fluxes...
January 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28102353/cofilin-regulates-nuclear-architecture-through-a-myosin-ii-dependent-mechanotransduction-module
#17
O'Neil Wiggan, Bryce Schroder, Diego Krapf, James R Bamburg, Jennifer G DeLuca
Structural features of the nucleus including shape, size and deformability impact its function affecting normal cellular processes such as cell differentiation and pathological conditions such as tumor cell migration. Despite the fact that abnormal nuclear morphology has long been a defining characteristic for diseases such as cancer relatively little is known about the mechanisms that control normal nuclear architecture. Mounting evidence suggests close coupling between F-actin cytoskeletal organization and nuclear morphology however, mechanisms regulating this coupling are lacking...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102294/novel-bio-functional-magnesium-coating-on-porous-ti6al4v-orthopaedic-implants-in-vitro-and-in-vivo-study
#18
Xiaokang Li, Peng Gao, Peng Wan, Yifeng Pei, Lei Shi, Bo Fan, Chao Shen, Xin Xiao, Ke Yang, Zheng Guo
Titanium and its alloys with various porous structures are one of the most important metals used in orthopaedic implants due to favourable properties as replacement for hard tissues. However, surface modification is critical to improve the osteointegration of titanium and its alloys. In this study, a bioactive magnesium coating was successfully fabricated on porous Ti6Al4V by means of arc ion plating, which was proved with fine grain size and high film/substrate adhesion. The surface composition and morphology were characterized by X-ray diffraction and SEM equipped with energy dispersive spectroscopy...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102163/does-mobility-of-the-elderly-with-hip-fractures-improve-at-one-year-following-surgery-a-5-year-prospective-survey
#19
Babak Pourabbas, Mohammad Jafar Emami, Amir Reza Vosoughi, Hamid Namazi
BACKGROUND: Hip fracture and its consequences are one of the major causes of morbidity and disability in the elderly. The purpose of this study was to collect epidemiologic data and assess the daily activities and walking ability of patients 3 months and 1 year following surgery because of a hip fracture. MATERIAL AND METHODS: We prospectively obtained data of all consecutive patients more than 50 years of age with any type of hip fracture from 2008 to 2013. After excluding pathologic fractures, hip fracture dislocations, non-surgically treated cases, and dead patients, functional status of the subjects at 3 months and 1 year after surgery was evaluated using a 10-degree scale of pain, modified Barthel index of daily activity, and independent walking ability...
August 30, 2016: Ortopedia, Traumatologia, Rehabilitacja
https://www.readbyqxmd.com/read/28102150/ultra-rare-genetic-variation-in-common-epilepsies-a-case-control-sequencing-study
#20
(no author information available yet)
BACKGROUND: Despite progress in understanding the genetics of rare epilepsies, the more common epilepsies have proven less amenable to traditional gene-discovery analyses. We aimed to assess the contribution of ultra-rare genetic variation to common epilepsies. METHODS: We did a case-control sequencing study with exome sequence data from unrelated individuals clinically evaluated for one of the two most common epilepsy syndromes: familial genetic generalised epilepsy, or familial or sporadic non-acquired focal epilepsy...
February 2017: Lancet Neurology
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