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https://www.readbyqxmd.com/read/28749599/heat-induced-inflammation-and-its-role-in-esophageal-cancer
#1
REVIEW
Mohaddese Maghsudlu, Ehsan Farashahi Yazd
Esophageal cancer as the sixth common cause of cancer death in the world consists of different histological types with various incidence patterns. Among them, esophageal adenocarcinoma and esophageal squamous cell carcinoma are the most prevalent types which also have different causality, cell of origin and risk factors. Since epidemiological studies have announced consumption of hot substances as one of the major risk factors for squamous cell carcinoma, evaluating the effect of this external stress on esophagus cells seems desirable...
July 27, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28749575/comparing-pairwise-additive-and-many-body-generalized-born-models-for-acid-base-calculations-and-protein-design
#2
Francesco Villa, David Mignon, Savvas Polydorides, Thomas Simonson
Generalized Born (GB) solvent models are common in acid/base calculations and protein design. With GB, the interaction between a pair of solute atoms depends on the shape of the protein/solvent boundary and, therefore, the positions of all solute atoms, so that GB is a many-body potential. For compute-intensive applications, the model is often simplified further, by introducing a mean, native-like protein/solvent boundary, which removes the many-body property. We investigate a method for both acid/base calculations and protein design that uses Monte Carlo simulations in which side chains can explore rotamers, bind/release protons, or mutate...
July 27, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28749526/adaptation-to-the-spanish-population-of-the-substance-use-risk-profile-scale-surps-and-psychometric-properties
#3
Fermín Fernández-Calderón, Carmen Díaz-Batanero, Antonio J Rojas-Tejada, Natalie Castellanos-Ryan, Óscar M Lozano-Rojas
The identification of different personality risk profiles for substance misuse is useful in preventing substance-related problems. This study aims to test the psychometric properties of a new version of the Substance Use Risk Profile Scale (SURPS) for Spanish college students. Cross-sectional study with 455 undergraduate students from four Spanish universities. A new version of the SURPS, adapted to the Spanish population, was administered with the Beck Hopelessness Scale, the UPPS-P Impulsive Behavior Scale, the State-Trait Anxiety Inventory (STAI) and the Alcohol Use Disorders Identification Test (AUDIT)...
July 14, 2017: Adicciones
https://www.readbyqxmd.com/read/28749508/linking-hygroscopicity-and-the-surface-microstructure-of-model-inorganic-salts-simple-and-complex-carbohydrates-and-authentic-sea-spray-aerosol-particles
#4
Armando D Estillore, Holly S Morris, Victor W Or, Hansol D Lee, Michael R Alves, Meagan A Marciano, Olga Laskina, Zhen Qin, Alexei V Tivanski, Vicki H Grassian
Individual airborne sea spray aerosol (SSA) particles show diversity in their morphologies and water uptake properties that are highly dependent on the biological, chemical, and physical processes within the sea subsurface and the sea surface microlayer. In this study, hygroscopicity data for model systems of organic compounds of marine origin mixed with NaCl are compared to data for authentic SSA samples collected in an ocean-atmosphere facility providing insights into the SSA particle growth, phase transitions and interactions with water vapor in the atmosphere...
July 27, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28749506/the-origin-of-high-electrocatalytic-activity-of-hydrogen-peroxide-reduction-reaction-by-a-g-c3n4-hopg-sensor
#5
C G Gomez, A M Silva, M C Strumia, L B Avalle, M I Rojas
Graphitic carbon nitride (g-C3N4) was synthesized from a low-cost precursor by means of a thermal process. The product was characterized by several spectroscopic techniques and the crystallinity was analyzed by X-ray diffraction. In the manufacture of the sensor, g-C3N4 was chemically exfoliated and a film was placed on the surface of a Highly Oriented Pyrolytic Graphite (HOPG). We compared the electrocatalytic activities of g-C3N4/HOPG and pristine HOPG surfaces as sensors for H2O2 quantification in buffer solution at pH 7...
July 27, 2017: Nanoscale
https://www.readbyqxmd.com/read/28749378/compton-scatter-tomography-in-tof-pet
#6
Hamidreza Hemmati, Alireza Kamali-Asl, Mohammadreza Ay, Pardis Ghafarian
Scatter Coincidences contain hidden information about the activity distribution on the Positron Emission Tomography (PET) imaging system. However, in conventional reconstruction, the scattered data cause the blurring of images and thus are estimated and subtracted from detected coincidences. List mode format provides a new aspect to use Time of Flight (TOF) and energy information of each coincidence at the reconstruction process. In this study, a novel approach is proposed to reconstruct activity distribution using the scattered data on the PET system...
July 27, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28749353/mesh-denoising-with-geo-metric-fidelity
#7
Marco Centin, Alberto Signoroni
Working with noisy meshes and aiming at providing high-fidelity 3D object models without tampering the metric quality of the acquisitions, we propose a mesh denoising technique that, through a normal-diffusion process guided by a curvature saliency map, is able to preserve and emphasize the natural object features, concurrently allowing the introduction of a bound on the maximum distance from the original model. Moreover, both the position of the mesh vertices and the edge orientations are optimized through a tailored geometric-aliasing correction...
July 25, 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/28749296/bridging-gaps-between-zoo-and-wildlife-medicine-establishing-reference-intervals-for-free-ranging-african-lions-panthera-leo
#8
Heather M Broughton, Danny Govender, Purvance Shikwambana, Patrick Chappell, Anna Jolles
The International Species Information System has set forth an extensive database of reference intervals for zoologic species, allowing veterinarians and game park officials to distinguish normal health parameters from underlying disease processes in captive wildlife. However, several recent studies comparing reference values from captive and free-ranging animals have found significant variation between populations, necessitating the development of separate reference intervals in free-ranging wildlife to aid in the interpretation of health data...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749291/detection-of-intranuclear-coccidiosis-in-tortoises-in-europe-and-china
#9
Ekaterina Kolesnik, Janosch Dietz, Kim O Heckers, Rachel E Marschang
Intranuclear coccidiosis of tortoises (TINC) has been described in association with systemic disease in various species of tortoises. TINC has been detected in numerous tortoises from the United States, but there are only a few reports from tropical tortoises in Germany and no reports from Asia. Using a real-time polymerase chain reaction assay, samples from 1,011 tortoises were screened for the presence of TINC. Samples originated from animals kept in captivity in Europe and in China. Coccidia were detected in a total of 27 chelonians (2...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749281/neoplasia-in-snakes-at-zoo-atlanta-during-1992-2012
#10
Annie Page-Karjian, Megan Hahne, Kate Leach, Hayley Murphy, Brad Lock, Samuel Rivera
A retrospective study was conducted to review neoplasia of captive snakes in the Zoo Atlanta collection from 1992 to 2012. Of 255 snakes that underwent necropsy and histopathologic examination at Zoo Atlanta during the study period, 37 were observed with neoplasia at necropsy. In those 37 snakes, 42 neoplastic lesions of 18 primary cell types were diagnosed. Thirty-five of those neoplasms (83.3%) were malignant, and of those, 19 were of mesenchymal origin, whereas 14 were of epithelial origin. The median annual rate of neoplasia at necropsy was 12...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749280/attempted-surgical-correction-of-a-persistent-right-fourth-aortic-arch-in-a-juvenile-rothschild-s-giraffe-giraffa-camelopardalis-rothschildi
#11
Lynnette Waugh, Jennifer D'Agostino, Gretchen A Cole, Alicia Hahn, Mark Rochat, Mee Ja M Sula
A 5-mo-old female Rothschild's giraffe ( Giraffa camelopardalis rothschildi) presented for regurgitation. Esophagoscopy at 24 wk of age revealed a markedly dilated cranial esophagus with a tight stricture at the level of the heart base consistent with a vascular ring anomaly. Surgical exploration confirmed persistent right fourth aortic arch with ductus originating from left subclavian artery at its junction with the aorta and left subclavian artery. The patent ductus arteriosus was surgically ligated. The procedure was complicated by limited surgical access and vascular friability resulting in uncontrollable hemorrhage, and the animal was euthanatized...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749269/epitheliotropic-intestinal-t-cell-lymphoma-in-a-harbor-seal-phoca-vitulina
#12
Sara Malberg, Henrike Alma Gregersen, Manfred Henrich, Christiane Herden
A 14-yr- old, male harbor seal ( Phoca vitulina ) presented with depression, anorexia, and weight loss. Clinical examination revealed no specific abnormalities. Diagnostic imaging displayed an enlarged mass in the dorso-cranial abdomen. The animal was euthanized due to progressive worsening of symptoms. Grossly, severe emaciation and a massive enlargement of one mesenteric lymph node were found. Microscopically, a neoplastic round cell population with morphologic characteristics of mature lymphocytes infiltrated the mesenteric lymph node as well as the jejunal mucosa and exhibited a marked invasion of the mucosal epithelial layer...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749258/coelomic-teratoma-in-a-blue-and-yellow-macaw-ara-ararauna
#13
Letícia B de Oliveira, Willian H M Santos, Alessandra V de Araújo, Anelise C Nepomuceno, Roselene Ecco
A 2-mo-old, female blue-and-yellow macaw (Ara ararauna) presented with severe abdominal distension, pain, and respiratory distress. Ultrasonographic examination detected a heterogeneous mass with multiple anechoic areas, compatible with a multilocular cyst, occupying most of the coelomic cavity. Postmortem examination revealed a mass of 12.0 × 8.5 × 5.0 cm, which had an irregular surface and was connected by a pedicle to the ileum. This mass compressed and displaced the liver, proventriculus, gizzard, and intestines cranially to the left...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749230/the-history-of-children-s-nursing-and-its-direction-within-the-united-kingdom
#14
Sonya Clarke
This article presents an account of the "evolution of children's nursing." The pertinent topic was originally developed as part of a Doctorate in Education (EdD) as it was anticipated an understanding of children's nursing would provide a more comprehensive context for a doctoral study that aims to explore the child's experience of staying in Northern Ireland's regional children's hospital from the perspectives of children and children's nurses using child-centered methodology. Northern Ireland, England, Scotland, and Wales are the 4 countries collectively known as the United Kingdom (UK)...
September 2017: Compr Child Adolesc Nurs
https://www.readbyqxmd.com/read/28749199/hair-follicle-associated-pluripotent-hap-stem-cells
#15
Yasuyuki Amoh, Robert M Hoffman
Various types of stem cells reside in the skin, including keratinocyte progenitor cells, melanocyte progenitor cells, and skin-derived precursors (SKPs), and nestin-expressing hair follicle-associated-pluripotent (HAP) stem cells. HAP stem cells, located in the bulge area of the hair follicle, have been shown to differentiate to nerve cells, glial cells, keratinocytes, smooth muscle cells, cardiac muscle cells, and melanocytes. HAP stem cells are positive forthe stem cell marker CD34, as well as K15-negative, suggestingtheir relatively undifferentiated state and therefore, HAP stem cells may be the most primitive stem cells in the skin...
July 27, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28749196/double-stranded-telomeric-dna-binding-proteins-diversity-matters
#16
Filip Červenák, Katarína Juríková, Regina Sepšiová, Martina Neboháčová, Jozef Nosek, Ľubomír Tomáška
Telomeric sequences constitute only a small fraction of the whole genome yet they are crucial for ensuring genomic stability. This function is in large part mediated by protein complexes recruited to telomeric sequences by specific telomere-binding proteins (TBPs). Although the principal tasks of nuclear telomeres are the same in all eukaryotes, TBPs in various taxa exhibit a surprising diversity indicating their distinct evolutionary origin. This diversity is especially pronounced in ascomycetous yeasts where they must have co-evolved with rapidly diversifying sequences of telomeric repeats...
July 27, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28749178/validation-and-recalibration-of-the-framingham-cardiovascular-disease-risk-models-in-an-australian-indigenous-cohort
#17
Xinyang Hua, Robyn McDermott, Thomas Lung, Mark Wenitong, An Tran-Duy, Ming Li, Philip Clarke
Background In Australia, clinical guidelines for primary prevention of cardiovascular disease recommend the use of the Framingham model to help identify those at high risk of developing the disease. However, this model has not been validated for the Indigenous population. Design Cohort study. Methods Framingham models were applied to the Well Person's Health Check (WPHC) cohort (followed 1998-2014), which included 1448 Aboriginal and Torres Strait Islanders from remote Indigenous communities in Far North Queensland...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28749143/self-assembly-of-escin-molecules-at-the-air-water-interface-studied-by-molecular-dynamics
#18
Sonya Rusiyanova Tsibranska, Anela Ivanova, Slavka Tcholakova, Nikolai D Denkov
Escin belongs to a large class of natural bio-surfactants, called saponins, which are present in more than 500 plant species. Saponins are applied in pharmaceutical, cosmetic, food and beverage industries, due to their variously expressed bioactivity and surface activity. In particular, Escin adsorption layers at the air-water interface exhibit unusually high surface elastic modulus (> 1100 mN/m) and high surface viscosity (ca. 130 N.s/m). The molecular origin of these unusual surface rheological properties is still unclear...
July 27, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28749029/ecotype-variation-of-methyl-eugenol-content-in-tea-tree-melaleuca-alternifolia-and-m-linariifolia
#19
Mervyn Shepherd, Dale Savins, Ashley Dowell, Samantha Morrow, Gareth Allen, Ian Southwell
Methyl eugenol is a natural phenylpropanoid compound found in a wide range of plants used for food, flavouring, cosmetics and health-care. As a suspected rodent carcinogen, methyl eugenol may also be harmful to humans when present in significant concentrations. Consequently, its level has been restricted in some foodstuffs and cosmetics for some markets. In order to assess the potential to breed uniformly low methyl eugenol cultivars for an essential oil crop, tea tree, the source of "Oil of Melaleuca, terpinene-4-ol type", we examine levels in individual trees (n= 30) from two geographic regions and six terpene chemotypes...
July 27, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28749026/maxillary-unicystic-ameloblastoma-in-a-6-week-old-filly-evaluated-with-computed-tomography
#20
H L Smith, A J Rosenblatt, W W Suen, H Owen, B J Ahern
CASE REPORT: A 6-week-old Thoroughbred filly was presented for evaluation of an expansile mass overlying the right nasal passage and causing respiratory stertor. On skull radiographs, there was a loculated, soft tissue-opaque mass identified dorsal to the right upper premolars and effacing the right nasal cavity. Computed tomography (CT) revealed a locally extensive mass with relatively benign characteristics located centrally on the tooth root apices of the deciduous second premolar (506)...
August 2017: Australian Veterinary Journal
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