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Mar Llamas-Velasco, Victoria Alegría, Ángel Santos-Briz, Lorenzo Cerroni, Heinz Kutzner, Luis Requena
We review the most characteristic clinical and histopathologic findings of the cutaneous manifestations of the occlusive nonvasculitic vasculopathic disorders. Clinically, most of these conditions are characterized by retiform purpura. Histopathologic findings consist of occlusion of the vessel lumina with no vasculitis. Different disorders may produce nonvasculitic occlusive vasculopathy in cutaneous blood and lymphatic vessels, including embolization due to cholesterol and oxalate emboli, cutaneous intravascular metastasis from visceral malignancies, atrial myxomas, intravascular angiosarcoma, intralymphatic histiocytosis, intravascular lymphomas, endocarditis, crystal globulin vasculopathy, hypereosinophilic syndrome, and foreign material...
October 18, 2016: American Journal of Dermatopathology
James M Brown, Neil R Horner, Thomas N Lawson, Tanja Fiegel, Simon Greenaway, Hugh Morgan, Natalie Ring, Luis Santos, Duncan Sneddon, Lydia Teboul, Jennifer Vibert, Gagarine Yaikhom, Henrik Westerberg, Ann-Marie Mallon
High-throughput phenotyping is a cornerstone of numerous functional genomics projects. In recent years, imaging screens have become increasingly important in understanding gene-phenotype relationships in studies of cells, tissues and whole organisms. Three-dimensional (3D) imaging has risen to prominence in the field of developmental biology for its ability to capture whole embryo morphology and gene expression, as exemplified by the International Mouse Phenotyping Consortium (IMPC). Large volumes of image data are being acquired by multiple institutions around the world that encompass a range of modalities, proprietary software and metadata...
October 14, 2016: Briefings in Bioinformatics
Arantxa Fernandes, David McKay, Scott Sneddon, Daniel M Dawson, Sebastian Lawson, Richard Veazey, Karl R Whittle, Sharon E Ashbrook
An NMR crystallographic approach, involving the combination of (119)Sn NMR spectroscopy, XRD, and DFT calculations, is demonstrated for the characterization of La2Sn2-x Ti x O7 ceramics. A phase change from pyrochlore (La2Sn2O7) to a layered perovskite phase (La2Ti2O7) is predicted (by radius ratio rules) to occur when x ≈ 0.95. However, the sensitivity of NMR spectroscopy to the local environment is able to reveal a significant two-phase region is present, extending from x = 1.8 to ∼0.2, with limited solid solution at the two extremes, in broad agreement with powder XRD measurements...
September 15, 2016: Journal of Physical Chemistry. C, Nanomaterials and Interfaces
Baukje de Roos, Ferdinando Binacchi, Stephen Whybrow, Alan A Sneddon
OBJECTIVE: To quantitatively analyse expenditure on all fresh foods, fruits and vegetables (F&V) and fish across urban and rural households in Scotland. Fresh foods were chosen since, in general, they are perceived to contribute more to health than processed foods. DESIGN: Descriptive analysis of purchase data of all foods brought into the home during 2012 from the Kantar Worldpanel database. Purchase data were restricted to fresh, unprocessed and raw foods or 'fresh to frozen' foods where freezing was part of harvesting...
October 5, 2016: Public Health Nutrition
Andrew W Barrett, Kenneth J Sneddon, John V Tighe, Aakshay Gulati, Laurence Newman, Jeremy Collyer, Paul M Norris, Darryl M Coombes, Michael J Shelley, Brian S Bisase, Rachael D Liebmann
Aim To determine how many ameloblastomas were misdiagnosed as dentigerous cysts (DCs) by correlating the radiological and histopathological features of a series of both entities. Methods and results Histopathology reports and radiological imaging of 135 DCs and 43 ameloblastomas were reviewed. Any clinical or radiological feature that suggested that the diagnosis of DC was wrong-for example, absence of an unerupted tooth-prompted review of the original histology. A total of 34 cases coded as DC at diagnosis were excluded; in the remaining 101 patients, the clinicoradiological and histopathological features were consistent with DC in 96 (95...
September 12, 2016: International Journal of Surgical Pathology
K S Joseph, M Basso, C Davies, L Lee, D Ellwood, D B Fell, D Fowler, B Kinniburgh, M S Kramer, K Lim, P Selke, D Shaw, A Sneddon, A Sprague, K Williams
No abstract text is available yet for this article.
September 7, 2016: BJOG: An International Journal of Obstetrics and Gynaecology
J G Boyle, J M Cullen, S Sneddon, N Sartania, M Shepherd
No abstract text is available yet for this article.
September 2016: Medical Teacher
Nikki Osborne, Gregory Paull, Adam Grierson, Karen Dunford, Elisabeth M Busch-Nentwich, Lynne U Sneddon, Natalie Wren, Joe Higgins, Penny Hawkins
A meeting on Contemporary Topics in Zebrafish Husbandry and Care was held in the United Kingdom in 2014, with the aim of providing a discussion forum for researchers, animal technologists, and veterinarians from academia and industry to share good practice and exchange ideas. Presentation topics included protocols for optimal larval rearing, implementing the 3Rs (replacement, reduction, and refinement) in large-scale colony management, and environmental enrichment. The audience also participated in a survey of current practice relating to practical husbandry, cryopreservation, and the provision of enrichment...
August 18, 2016: Zebrafish
P A von dem Borne, M F Jonkman, R van Doorn
Subcorneal pustular dermatosis (SPD) or Sneddon-Wilkinson disease is a rare pustular skin disease that follows a chronic relapsing course. A well-known association exists between SPD and IgA monoclonal gammopathy of undetermined significance (IgA MGUS), which exists in up to 40% of cases. SPD has also been observed in IgA myeloma patients. In SPD direct and indirect immunofluorescence studies do not reveal in vivo bound IgA to the epithelial cell surface, in contrast to IgA pemphigus that has similar clinico-pathological features...
August 12, 2016: British Journal of Dermatology
Paul Baciu, Candice M Nofar, Justin Spaulding, Hua Gao
PURPOSE: To report the occurrence of a branch retinal artery occlusion with paracentral acute middle maculopathy in an otherwise healthy young man with a history of livedo reticularis (LR). METHODS: Retrospective case report. PATIENTS: A 21-year-old man with a history of LR being treated with pentoxifylline developed an acute branch retinal artery occlusion with initial best-corrected visual acuity at presentation of 20/80. RESULTS: A thorough diagnostic work up was negative for potential causes of branch retinal artery occlusion or LR...
August 2, 2016: Retinal Cases & Brief Reports
W Bruce Sneddon, Giovanni W Ruiz, Luciana I Gallo, Kunhong Xiao, Qiangmin Zhang, Youssef Rbaibi, Ora A Weisz, Gerard L Apodaca, Peter A Friedman
Parathyroid hormone (PTH) and FGF23 are the primary hormones regulating acute phosphate homeostasis. Human renal proximal tubule cells (RPTECs) were used to characterize the mechanism and signaling pathways of PTH and FGF23 on phosphate transport and the role of the PDZ protein NHERF1 in mediating PTH and FGF23 effects. RPTECs express the NPT2A phosphate transporter, αKlotho, FGFR1, FGFR3, FGFR4, and the PTH receptor. FGFR1 isoforms are formed from alternate splicing of exon 3 and of exon 8 or 9 in Ir-like loop 3...
September 2, 2016: Journal of Biological Chemistry
Rasneer S Bains, Heather L Cater, Rowland R Sillito, Agisilaos Chartsias, Duncan Sneddon, Danilo Concas, Piia Keskivali-Bond, Timothy C Lukins, Sara Wells, Abraham Acevedo Arozena, Patrick M Nolan, J Douglas Armstrong
Central nervous system disorders such as autism as well as the range of neurodegenerative diseases such as Huntington's disease are commonly investigated using genetically altered mouse models. The current system for characterizing these mice usually involves removing the animals from their home-cage environment and placing them into novel environments where they undergo a battery of tests measuring a range of behavioral and physical phenotypes. These tests are often only conducted for short periods of times in social isolation...
2016: Frontiers in Behavioral Neuroscience
Paula Jean Watts, Amor Khachemoune
Subcorneal pustular dermatosis (SPD), also known as Sneddon-Wilkinson disease, is a rare, benign yet relapsing pustular dermatosis. Its incidence and prevalence have not been well studied. It characteristically presents as hypopyon pustules on the trunk and intertriginous areas of the body. SPD is similar to two other disease entities. Both SPD-type immunoglobulin (Ig)-A pemphigus and annular pustular psoriasis clinically and histologically present similarly to SPD. Immunologic studies separate SPD-type IgA pemphigus from SPD and pustular psoriasis...
June 27, 2016: American Journal of Clinical Dermatology
P A De Sousa, B J Tye, S Sneddon, K Bruce, P Dand, G Russell, D M Collins, A Greenshields, K McDonald, H Bradburn, J Gardner, J M Downie, A Courtney, D R Brison
The human embryonic stem cell line RCM-1 was derived from a failed to fertilise egg undergoing parthenogenetic stimulation. The cell line shows normal pluripotency marker expression and differentiation to three germ layers in vitro and in vivo. It has a normal 46XX female karyotype and microsatellite PCR identity, HLA and blood group typing data is available.
March 2016: Stem Cell Research
Deborah Sneddon, Raymon Niemans, Matthias Bauwens, Ala Yaromina, Simon J A van Kuijk, Natasja G Lieuwes, Rianne Biemans, Ivo Pooters, Paul A Pellegrini, Nigel A Lengkeek, Ivan Greguric, Kathryn F Tonissen, Claudiu T Supuran, Philippe Lambin, Ludwig Dubois, Sally-Ann Poulsen
Tumor hypoxia contributes resistance to chemo- and radiotherapy, while oxygenated tumors are sensitive to these treatments. The indirect detection of hypoxic tumors is possible by targeting carbonic anhydrase IX (CA IX), an enzyme overexpressed in hypoxic tumors, with sulfonamide-based imaging agents. In this study, we present the design and synthesis of novel gallium-radiolabeled small-molecule sulfonamides targeting CA IX. The compounds display favorable in vivo pharmacokinetics and stability. We demonstrate that our lead compound, [(68)Ga]-2, discriminates CA IX-expressing tumors in vivo in a mouse xenograft model using positron emission tomography (PET)...
July 14, 2016: Journal of Medicinal Chemistry
Heather Walker, Andrea Patton, Gwen Bayne, Charis Marwick, Jacqueline Sneddon, Peter Davey, Dilip Nathwani, Samira Bell
OBJECTIVES: Evidence has shown that a prophylactic antibiotic regimen of flucloxacillin and gentamicin for orthopaedic surgery was associated with increased rates of post-operative acute kidney injury (AKI). This resulted in changes in the national antibiotic policy recommendation for orthopaedic surgical prophylaxis. This study aimed to assess whether this change from flucloxacillin and gentamicin to co-amoxiclav was associated with changes in the rates of AKI and Clostridium difficile infection (CDI)...
September 2016: Journal of Antimicrobial Chemotherapy
Li Kang, Shilpa Mokshagundam, Bradley Reuter, Daniel S Lark, Claire C Sneddon, Chandani Hennayake, Ashley S Williams, Deanna P Bracy, Freyja D James, Ambra Pozzi, Roy Zent, David H Wasserman
Diet-induced muscle insulin resistance is associated with expansion of extracellular matrix (ECM) components, such as collagens, and the expression of collagen-binding integrin, α2β1. Integrins transduce signals from ECM via their cytoplasmic domains, which bind to intracellular integrin-binding proteins. The integrin-linked kinase (ILK)-PINCH-parvin (IPP) complex interacts with the cytoplasmic domain of β-integrin subunits and is critical for integrin signaling. In this study we defined the role of ILK, a key component of the IPP complex, in diet-induced muscle insulin resistance...
June 2016: Diabetes
Anna Bersano, Michela Morbin, Elisa Ciceri, Gloria Bedini, Peter Berlit, Michele Herold, Stefania Saccucci, Valeria Fugnanesi, Hannes Nordmeyer, Giuseppe Faragò, Mario Savoiardo, Franco Taroni, MariaRita Carriero, Battista Boncoraglio Giorgio, Laura Perucca, Luigi Caputi, Agostino Parati Eugenio, Markus Kraemer
Divry van Bogaert Syndrome (DBS) is a familial juvenile-onset disorder characterized by livedo racemosa, white matter disease, dementia, epilepsy and angiographic finding of "cerebral angiomatosis". A similar syndrome including livedo racemosa and cerebrovascular disease, often associated with anticardiolipin antibodies, has been described as Sneddon Syndrome (SS) highlighting the question whether these two conditions have to be considered different entities or indeed different features of a unique syndrome...
May 15, 2016: Journal of the Neurological Sciences
Jennifer C McGarvey, Kunhong Xiao, Shanna L Bowman, Tatyana Mamonova, Qiangmin Zhang, Alessandro Bisello, W Bruce Sneddon, Juan A Ardura, Frederic Jean-Alphonse, Jean-Pierre Vilardaga, Manojkumar A Puthenveedu, Peter A Friedman
The G protein-coupled parathyroid hormone receptor (PTHR) regulates mineral-ion homeostasis and bone remodeling. Upon parathyroid hormone (PTH) stimulation, the PTHR internalizes into early endosomes and subsequently traffics to the retromer complex, a sorting platform on early endosomes that promotes recycling of surface receptors. The C terminus of the PTHR contains a type I PDZ ligand that binds PDZ domain-containing proteins. Mass spectrometry identified sorting nexin 27 (SNX27) in isolated endosomes as a PTHR binding partner...
May 20, 2016: Journal of Biological Chemistry
Cristina Collantes-Rodríguez, David Jiménez-Gallo, Cintia Arjona-Aguilera, Lidia Ossorio-García, Mario Linares-Barrios
No abstract text is available yet for this article.
June 1, 2016: JAMA Dermatology
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