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https://www.readbyqxmd.com/read/29145573/human-papillomavirus-hpv-and-somatic-egfr-mutations-are-essential-mutually-exclusive-oncogenic-mechanisms-for-inverted-sinonasal-papillomas-and-associated-sinonasal-squamous-cell-carcinomas
#1
A M Udager, J B McHugh, C M Goudsmit, H C Weigelin, M S Lim, K S J Elenitoba-Johnson, B L Betz, T E Carey, N A Brown
Background: Inverted sinonasal papilloma (ISP) is a locally aggressive neoplasm often associated with sinonasal squamous cell carcinoma (SNSCC). While the etiology of ISP is not well understood, human papillomavirus (HPV) has been detected in a subset of cases. Our group recently identified activating somatic EGFR mutations in the majority of ISP and ISP-associated SNSCC. However, the relationship between EGFR mutations and HPV infection has not been explored. Patients and Methods: We evaluated 58 ISP and 22 ISP-associated SNSCC (including 13 patients with matched ISP/SNSCC samples), as well as 14 SNSCC without clinical or pathologic evidence of an associated ISP...
November 14, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29145452/behavioral-climatic-and-environmental-risk-factors-for-zika-and-chikungunya-virus-infections-in-rio-de-janeiro-brazil-2015-16
#2
Trevon L Fuller, Guilherme Calvet, Camila Genaro Estevam, Jussara Rafael Angelo, Gbenga J Abiodun, Umme-Aiman Halai, Bianca De Santis, Patricia Carvalho Sequeira, Eliane Machado Araujo, Simone Alves Sampaio, Marco Cesar Lima de Mendonça, Allison Fabri, Rita Maria Ribeiro, Ryan Harrigan, Thomas B Smith, Claudia Raja Gabaglia, Patrícia Brasil, Ana Maria Bispo de Filippis, Karin Nielsen-Saines
The burden of arboviruses in the Americas is high and may result in long-term sequelae with infants disabled by Zika virus infection (ZIKV) and arthritis caused by infection with Chikungunya virus (CHIKV). We aimed to identify environmental drivers of arbovirus epidemics to predict where the next epidemics will occur and prioritize municipalities for vector control and eventual vaccination. We screened sera and urine samples (n = 10,459) from residents of 48 municipalities in the state of Rio de Janeiro for CHIKV, dengue virus (DENV), and ZIKV by molecular PCR diagnostics...
2017: PloS One
https://www.readbyqxmd.com/read/29145427/do-microplastic-particles-affect-daphnia-magna-at-the-morphological-life-history-and-molecular-level
#3
Hannes K Imhof, Jakub Rusek, Michaela Thiel, Justyna Wolinska, Christian Laforsch
Microplastic particles are ubiquitous not only in marine but also in freshwater ecosystems. However, the impacts of microplastics, consisting of a large variety of synthetic polymers, on freshwater organisms remains poorly understood. We examined the effects of two polymer mixtures on the morphology, life history and on the molecular level of the waterflea Daphnia magna (three different clones). Microplastic particles of ~40 μm were supplied at a low concentration (1% of the food particles) leading to an average of ~30 particles in the digestive tract which reflects a high microplastic contamination but still resembles a natural situation...
2017: PloS One
https://www.readbyqxmd.com/read/29145316/application-of-ultrasound-guided-c5-nerve-root-block-using-polydeoxyribonucleotide-in-traumatic-c5-nerve-root-injury-caused-by-fracture-of-the-articular-process-of-the-cervical-spine-a-case-report
#4
Donghwi Park
RATIONALE: Cervical nerve root injury is one of the complications of traumatic cervical spine fracture. Although one of the most effective treatments to reduce inflammation in nerve root injuries is the use of corticosteroids or nonsteroidal anti-inflammatory drugs (NSAIDs), corticosteroids and NSAIDs can inhibit bone healing. So, when nerve injury accompanies bone fractures, corticosteroids and NSAIDs have limitations as therapeutic agents. However, polydeoxyribonucleotide (PDRN) may be useful in the treatment of neuropathy or musculoskeletal pain patients with contraindication of the use of corticosteroids because of its anti-inflammatory effect, as revealed in previous studies...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145310/successful-treatment-with-rivaroxaban-of-cerebral-venous-thrombosis-and-bone-marrow-necrosis-induced-by-pegaspargase-a-case-report-and-literature-review
#5
Jingrui Sui, Yongming Zhang, Liqing Yang, Hui Wang, Junqing Xu, Rongxia Wei, Yaping Hao, Xiaolei Wang, Jun Peng, Junjie Ma
RATIONALE: Pegaspargase has been used in the treatment of acute lymphoblastic leukemia with promising results. However, it has also been associated with several potentially serious complications, including thrombosis. Pegaspargase-induced cerebral venous thrombosis and bone marrow necrosis are very rare. PATIENT CONCERNS: A 50-year-old female developed headache, weakness of the right lower extremity, fever, and bone pain after chemotherapy including pegaspargase for the treatment of acute lymphoblastic leukemia...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145292/recurrent-spinal-primitive-neuroectodermal-tumor-with-brain-and-bone-metastases-a-case-report
#6
Frank Chen, Shyh-Shin Chiou, Sheng-Fung Lin, Ann-Shung Lieu, Yi-Ting Chen, Chih-Jen Huang
RATIONALE: Primary spinal primitive neuroectodermal tumor (PNET) is relatively rare in all age groups, and the prognosis in most cases of spinal PNETs appears to be poor, with a median patient survival of 1 to 2 years. We present a case with recurrent spinal PNET with brain and bone metastases that was successfully treated by multimodality treatment. PATIENT CONCERNS: A 14-year-old teenage girl had suffered from progressive left upper back pain with bilateral lower legs weakness and numbness for 1 year...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145279/osteosarcoma-in-the-coracoid-process-that-mimicked-an-osteochondroma-a-case-report
#7
Zhiping Luo, Conglin Ye, Hong-Xun Sang
RATIONALE: Osteosarcomas are the most common primary malignant bone tumors in children and young adults; these tumors often affect the metaphyses of long bones such as the proximal humerus, proximal tibia, and distal femur. In contrast, osteosarcoma of the coracoid process is extremely rare. PATIENT CONCERNS: Herein, we describe a case of osteosarcoma affecting the coracoid process in a 40-year-old woman. The patient presented with shoulder pain, weakness, and an inability to raise her left arm...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145264/influences-of-cardiac-motion-on-computed-tomography-guided-biopsy-of-lung-nodules-located-near-the-heart
#8
Li-Sheng Hsu, Chien-Wei Chen, Chia-Hao Chang, Chien-Han Liao, Sheng-Lung Hsu, Wei-Ming Lin
Computed tomography (CT)-guided lung biopsy of nodules located near the heart may be associated with potential complications. To understand the influences of cardiac motion on lung parenchyma during biopsy, we processed the cardiac phase images of coronary CT angiography (CCTA) and noticed shifts in mediastinum lung margin (MLM) at different zones.Thirty eight CCTA (27 men and 11 women) were retrospectively evaluated. Image processing was done with Fiji (an open source Java image processing program by Fiji contributors) using 10% to 90% phase images of CCTA; and tissue displacement (MLM shift) was shown on the resulting images...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145119/amine-functionalized-magnetic-bamboo-based-activated-carbon-adsorptive-removal-of-ciprofloxacin-and-norfloxacin-a-batch-and-fixed-bed-column-study
#9
Xiaoming Peng, Fengping Hu, Tao Zhang, Fengxian Qiu, Hongling Dai
Amine-functionalized magnetic bamboo-based activated carbon (AFM-BAC) derived from bamboo products wastes were employed for effective adsorption of fluoroquinolone antibiotics ciprofloxacin (CIP) and norfloxacin (NOR) through batch processing. The effects of factors on the adsorption of both antibiotics were studied. The studies of various factors influencing the adsorption behavior indicated that the maximum adsorption capacities for two antibiotics adsorption were observed in weakly acidic condition and the adsorption amounts of two antibiotics increased with the increase of zwitterionic form, implying the importance of zwitterionic form, and the adsorption process is spontaneous and endothermic...
November 2, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29145000/proopiomelanocortin-processing-and-prohormone-convertase-1-level-in-dogs-with-pituitary-corticotroph-tumors
#10
G Benchekroun, P de Fornel-Thibaud, D Rosenberg
Preliminary data suggest that prohormone convertase 1 (PC1/3) protein expression and proopiomelanocortin (POMC) processing are altered in large corticotroph tumors. The aim of this study was to characterize the levels of ACTH precursors and PC1/3 protein in small and large corticotroph tumors of dogs with Cushing's disease. Pituitary tumors of dogs with Cushing's disease were collected postmortem 30 min to 12h after natural death or euthanasia, and classified as small or large. POMC, pro-ACTH, and PC1/3 were detected by Western blotting...
October 13, 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/29144761/amphiphiles-without-head-and-tail-design-nanostructures-based-on-the-self-assembly-of-anionic-boron-cluster-compounds
#11
Roberto Fernandez-Alvarez, Vladimír Ďorďovič, Mariusz Uchman, Pavel Matejicek
Anionic boron hydride cluster compounds (ABCCs) are intrinsically amphiphilic building blocks suitable for nanochemistry. ABCCs are involved in atypical weak interactions, notably dihydrogen bonding, due to their peculiar polyhedral structure, consisting of negatively charged B-H units. The most striking feature of ABCCs that differentiates them from typical surfactants is the lack of head-and-tail structure. Furthermore, their structure can be described as intrinsically amphiphilic or aquaneutral. Therefore, classical terms established to describe self-assembly of classical amphiphiles are insufficient and need to be reconsidered...
November 16, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29144758/on-the-density-dependence-of-the-integral-equation-coarse-graining-effective-potential
#12
Mohammadhasan Dinpajooh, Marina Giuseppina Guenza
Coarse-graining (CG) procedures provide computationally efficient methods for investigating the corresponding long time- and length-scale processes. In the bottom-up approaches, the effective interactions between the CG sites is obtained using the information from the atomistic simulations, but reliable CG procedures are required to preserve the structure and thermodynamics. In this regard, the integral equation coarse-graining (IECG) method is a promising approach that uses the first-principles Ornstein-Zernike equation in liquid state theory to determine the effective potential between CG sites...
November 16, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/29144584/3d-printed-anchoring-sutures-for-permanent-shaping-of-tissues
#13
Wei Wei, Yuxiao Li, Huazhe Yang, Reza Nassab, Fatemeh Shahriyari, Ali Akpek, Xiaofei Guan, Yanhui Liu, Shahrouz Taranejoo, Ali Tamayol, Yu Shrike Zhang, Ali Khademhosseini, Hae Lin Jang
Sutures are one of the most widely used devices for adhering separated tissues after injury or surgery. However, most sutures require knotting, which can create a risk of inflammation, and can act as mechanically weak points that often result in breakage and slipping. Here, an anchoring suture is presented with a design that facilitates its propagation parallel to the suturing direction, while maximizing its resistive force against the opposite direction of external force to lock its position in tissues. Different microstructures of suture anchors are systematically designed using orthogonal arrays, and selected based on shape factors associated with mechanical strength...
November 16, 2017: Macromolecular Bioscience
https://www.readbyqxmd.com/read/29144560/large-proton-affinity-enhancements-triggered-by-non-covalent-interactions
#14
Carlos Martín-Fernández, M Merced Montero-Campillo, Ibon Alkorta, Manuel Yáñez, Otilia Mó, José Elguero
The proton affinity of the hydroxyl group of a series of compounds YHxOH (x=0-3, Y = Li, Na, Be, Mg, B, Al, Si, P, S, Cl, H) always increases upon interaction with Lewis bases LB = NH3, H2CNH, HCN, according to electronic structure calculations carried out at the G4 level of theory. The LB:YHxOH complexes experiment proton affinity enhancements from 24.8 to 304.8 kJ·mol-1 on its OH group with respect to the free compounds. This enhancement is related to the ability of these YHxOH compounds, acting as Lewis acids, to form non-covalent interactions of different kinds...
November 16, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29144419/air-pollution-and-dispensed-medications-for-asthma-and-possible-effect-modifiers-related-to-mental-health-and-socio-economy-a-longitudinal-cohort-study-of-swedish-children-and-adolescents
#15
Anna Oudin, Lennart Bråbäck, Daniel Oudin Åström, Bertil Forsberg
It has been suggested that children that are exposed to a stressful environment at home have an increased susceptibility for air pollution-related asthma. The aim here was to investigate the association between air pollution exposure and asthma, and effect modification by mental health and by socio-economic status (as markers of a stressful environment). All individuals under 18 years of age in four Swedish counties during 2007 to 2010 (1.2 million people) were included. The outcome was defined as dispensing at least two asthma medications during follow up...
November 16, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29144182/plasma-lyte-148-vs-hartmann-s-solution-for-cardiopulmonary-bypass-pump-prime-a-prospective-double-blind-randomized-trial
#16
Laurence Weinberg, Elizabeth Chiam, James Hooper, Frank Liskaser, Angela Kim Hawkins, Denise Massie, Andrew Ellis, Chong O Tan, David Story, Rinaldo Bellomo
BACKGROUND: The mechanisms of acid-base changes during cardiopulmonary bypass (CPB) remain unclear. We tested the hypothesis that, when used as CPB pump prime solutions, Plasma-Lyte 148 (PL) and Hartmann's solution (HS) have differential mechanisms of action in their contribution to acid-base changes. METHODS: We performed a prospective, double-blind, randomized trial in adult patients undergoing elective cardiac surgery with CPB. Participants received a CPB prime solution of 2000 mL, with either PL or HS...
November 1, 2017: Perfusion
https://www.readbyqxmd.com/read/29144145/a-social-comparison-theory-meta-analysis-60-years-on
#17
J P Gerber, Ladd Wheeler, Jerry Suls
These meta-analyses of 60+ years of social comparison research focused on 2 issues: the choice of a comparison target (selection) and the effects of comparisons on self-evaluations, affect, and so forth (reaction). Selection studies offering 2 options (up or down) showed a strong preference (and no evidence of publication bias) for upward choices when there was no threat; there was no evidence for downward comparison as a dominant choice even when threatened. Selections became less differentiable when a lateral choice was also provided...
November 16, 2017: Psychological Bulletin
https://www.readbyqxmd.com/read/29144144/structural-emergence-in-particle-dispersions
#18
Andrew Mulderig, Gregory Beaucage, Karsten Vogtt, Hanqiu Jiang, Yan Jin, Lisa Clapp, Donald Henderson
Particle dispersions, such as pigment-based inks, comprise weakly bound, milled nanoparticles. The properties of these pigments depend on both their chemical composition, as well as a rather complex structural hierarchy, which emerges from these dispersions. The emergence of structure under semi-dilute conditions is related to the structure of the dilute particles, the particle spacing (mesh size), processing history, and the interaction potential. Kinetic simulations could predict such emergence using these input parameters...
November 16, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29144126/highly-active-carbene-potassium-complexes-for-the-ring-opening-polymerization-of-%C3%AE%C2%B5-caprolactone
#19
Mrinal Bhunia, Gonela Vijaykumar, Debashis Adhikari, Swadhin K Mandal
Herein we report the synthesis of two complexes of potassium employing strongly nucleophilic carbenes, such as cyclic "(alkyl)(amino)carbene (cAAC) and abnormal N-heterocyclic carbene (aNHC). Both complexes are dimeric in the solid state and the two potassium centers are bridged by trimethylsilylamide. In these complexes, the carbene- - -K interaction is predominantly electrostatic in character, which has been probed thoroughly by NBO and AIM analyses. Indeed, the delocalization energy of the cAAC lone pair calculated from the second-order perturbation theory was only 5...
November 16, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/29144103/effects-of-home-based-superimposed-neuromuscular-electrical-stimulation-in-severe-chronic-obstructive-pulmonary-disease-patients-a-randomized-controlled-clinical-trial
#20
Marie C Valenza, Irene Torres-Sánchez, Laura López-López, Irene Cabrera-Martos, Araceli Ortiz-Rubio, Gerald Valenza-Demet
BACKGROUND: COPD patients experience a sustained deterioration of several capacities. Those with severe COPD undergo a considerable decline in their physical and functional capacities, but pulmonary rehabilitation (PR) is used to reduce the weakness of such patients. To date, neuromuscular electrical stimulation (NMES) has been used in acute COPD patients but NMES superimposed onto voluntary muscular contraction has not been tested in COPD patients. AIM: The aim of this study was to evaluate the effects of superimposed NMES on the cardiorespiratory performance and functionality of severe COPD patients undergoing a home-based rehabilitation program...
November 16, 2017: European Journal of Physical and Rehabilitation Medicine
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