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Telangiectasia

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https://www.readbyqxmd.com/read/28436950/mre11-stability-is-regulated-by-ck2-dependent-interaction-with-r2tp-complex
#1
P von Morgen, K Burdova, T G Flower, N J O'Reilly, S J Boulton, S J Smerdon, L Macurek, Z Hořejší
The MRN (MRE11-RAD50-NBS1) complex is essential for repair of DNA double-strand breaks and stalled replication forks. Mutations of the MRN complex subunit MRE11 cause the hereditary cancer-susceptibility disease ataxia-telangiectasia-like disorder (ATLD). Here we show that MRE11 directly interacts with PIH1D1, a subunit of heat-shock protein 90 cochaperone R2TP complex, which is required for the assembly of large protein complexes, such as RNA polymerase II, small nucleolar ribonucleoproteins and mammalian target of rapamycin complex 1...
April 24, 2017: Oncogene
https://www.readbyqxmd.com/read/28436392/the-dna-damage-response-in-neurons-die-by-apoptosis-or-survive-in-a-senescence-like-state
#2
Edward Fielder, Thomas von Zglinicki, Diana Jurk
Neurons are exposed to high levels of DNA damage from both physiological and pathological sources. Neurons are post-mitotic and their loss cannot be easily recovered from; to cope with DNA damage a complex pathway called the DNA damage response (DDR) has evolved. This recognizes the damage, and through kinases such as ataxia-telangiectasia mutated (ATM) recruits and activates downstream factors that mediate either apoptosis or survival. This choice between these opposing outcomes integrates many inputs primarily through a number of key cross-road proteins, including ATM, p53, and p21...
April 18, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28434049/a-prospective-study-of-the-safety-and-efficacy-of-a-combined-bipolar-radiofrequency-intense-pulsed-light-and-infrared-diode-laser-treatment-for-global-facial-photoaging
#3
Min Jiang, Fang Yan, Mathew Avram, Zhong Lu
The clinical features of photoaging include: skin texture changes, laxity, rhytides, pigmentary changes, and vascular changes such as erythema and telangiectasias. In order to meet patients' increasing demands for improving all aspects of photoaging at one office visit, employing a multi-modality treatment for all aspects of photoaging has become increasingly desirable for the physician and patient alike. We examine a novel device that employs bipolar radiofrequency (RF), intense pulsed light (IPL), and infrared diode laser...
April 23, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28431387/cypermethrin-toxication-leads-to-histopathological-lesions-and-induces-inflammation-and-apoptosis-in-common-carp-cyprinus-carpio-l
#4
Harun Arslan, Selçuk Özdemir, Serdar Altun
Cypermethrin (Cyp), a known neurotoxic pesticide, is widely used in agricultural applications. In the present study, the aim was to determine the histopathological effects of Cyp toxication and evaluate the activation of inducible nitric oxide synthetase (iNOS) and 8-hydroxy-2-deoxyguanosine (8-OHdG) using an immunofluorescence assay. Thereafter, we identified the expressions of caspase 3, capsase 8, iNOS, and metallothionein 1 (MT1) genes in common carp using quantitative reverse transcription polymerase chain reaction (qRT-PCR)...
April 14, 2017: Chemosphere
https://www.readbyqxmd.com/read/28430880/cerebral-abscess-associated-with-odontogenic-bacteremias-hypoxemia-and-iron-loading-in-immunocompetent-patients-with-right-to-left-shunting-through-pulmonary-arteriovenous-malformations
#5
E J Boother, S Brownlow, H C Tighe, K B Bamford, J E Jackson, C L Shovlin
Background: Cerebral abscess is a recognised complication of pulmonary arteriovenous malformations (PAVMs) that allow systemic venous blood to bypass the pulmonary capillary bed through anatomic right-to-left shunts. Broader implications and mechanisms remain poorly explored. Methods: Between June 2005 and December 2016, at a single institution, 445 consecutive adult patients with CT-scan confirmed PAVMs (including 403 (90.5%) with hereditary haemorrhagic telangiectasia) were recruited to a prospective series...
April 19, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28430735/sodium-tetradecyl-sulfate-a-review-of-clinical-uses
#6
Helena A Jenkinson, Kelly M Wilmas, Sirunya Silapunt
BACKGROUND: Sodium tetradecyl sulfate (STS) is Food and Drug Administration approved for treatment of varicose veins, but numerous other off-label applications have been reported. OBJECTIVE: To describe the clinical uses of STS, as well as efficacy and adverse effects. METHODS: Review of studies searchable on PubMed from 1938 to 2016 describing clinical uses of STS to determine efficacy and adverse effects associated with various applications...
April 19, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28430541/a-comprehensive-approach-to-hepatic-vascular-disease
#7
Khaled M Elsayes, Akram M Shaaban, Sarah M Rothan, Sanaz Javadi, Beatrice L Madrazo, Rosa P Castillo, Victor J Casillas, Christine O Menias
The liver has a complex vascular supply, which involves the inflow of oxygenated blood through the hepatic artery (systemic circulation) and deoxygenated blood through the portal vein (portal circulation), as well as the outflow of deoxygenated blood through the hepatic veins to the inferior vena cava. A spectrum of vascular variants can involve the liver. Some of these variants may result in areas of enhancement that can mimic more serious pathologic conditions. In this article, the authors discuss a spectrum of variants and pathologic conditions that may involve the liver vasculature...
April 21, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28427830/liver-transplantation-for-hereditary-hemorrhagic-telangiectasia-a-systematic-review
#8
REVIEW
Emanuele Felli, Pietro Addeo, François Faitot, Gennaro Nappo, Constantin Oncioiu, Philippe Bachellier
AIM: To evaluate the indications, timing and results of liver transplantation in patients affected by hereditary hemorrhagic telangiectasia (HHT), by undertaking a systematic review of the current literature. METHODS: Electronic bibliographical databases were searched on MEDLINE and Pubmed according to the PRISMA criteria. A total of 58 articles were initially found, 11 have been excluded because of single center series later included in the European Liver transplant Registry (ELTR), already reported in this study...
April 17, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28424147/treatment-of-leukoencephalopathy-with-calcifications-and-cysts-with-bevacizumab
#9
Alex J Fay, Allison A King, Joshua S Shimony, Yanick J Crow, Jan E Brunstrom-Hernandez
BACKGROUND: Leukoencephalopathy with calcifications and cysts is a rare, autosomal recessive cerebral microangiopathy that causes progressive white matter disease, calcifications, and cysts within the brain. It is typically associated with slowly progressive psychomotor regression, seizures, and movement disorders. Although leukoencephalopathy with calcifications and cysts affects only the central nervous system, it demonstrates remarkable neuropathologic and radiologic overlap with Coats plus, a disorder of small vessels of the brain, eyes, gastrointestinal tract, and bone...
March 23, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28423511/atm-kinase-sustains-breast-cancer-stem-like-cells-by-promoting-atg4c-expression-and-autophagy
#10
Martina Antonelli, Flavie Strappazzon, Ivan Arisi, Rossella Brandi, Mara D'Onofrio, Manolo Sambucci, Gwenola Manic, Ilio Vitale, Daniela Barilà, Venturina Stagni
The efficacy of Ataxia-Telangiectasia Mutated (ATM) kinase signalling inhibition in cancer therapy is tempered by the identification of new emerging functions of ATM, which suggests that the role of this protein in cancer progression is complex. We recently demonstrated that this tumor suppressor gene could act as tumor promoting factor in HER2 (Human Epidermal Growth Factor Receptor 2) positive breast cancer. Herein we put in evidence that ATM expression sustains the proportion of cells with a stem-like phenotype, measured as the capability to form mammospheres, independently of HER2 expression levels...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28420371/effect-of-pulmonary-arteriovenous-malformations-on-the-mechanical-properties-of-the-lungs
#11
Cécile Rotenberg, Marcel Bonay, Mostafa El Hajjam, Sandra Blivet, Alain Beauchet, Pascal Lacombe, Thierry Chinet
BACKGROUND: Pulmonary arteriovenous malformations (PAVMs) are present in approximately 15-50% individuals with hereditary hemorrhagic telangiectasia (HHT). They may be isolated but more often are multiple. The goal of this study was to evaluate the influence of PAVMs on lung mechanical properties. METHODS: We reviewed the files of all adult patients (age ≥ 18 years) referred to our Center for evaluation of HHT between 2005 and 2013. The diagnosis of HHT was based on the Curacao criteria and/or the presence of a pathogenic mutation...
April 19, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28418844/loss-of-tumour-specific-atm-protein-expression-is-an-independent-prognostic-factor-in-early-resected-nsclc
#12
Lars F Petersen, Alexander C Klimowicz, Shannon Otsuka, Anifat A Elegbede, Stephanie K Petrillo, Tyler Williamson, Chris T Williamson, Mie Konno, Susan P Lees-Miller, Desiree Hao, Don Morris, Anthony M Magliocco, D Gwyn Bebb
Ataxia-telangiectasia mutated (ATM) is critical in maintaining genomic integrity. In response to DNA double-strand breaks, ATM phosphorylates downstream proteins involved in cell-cycle checkpoint arrest, DNA repair, and apoptosis. Here we investigate the frequency, and influence of ATM deficiency on outcome, in early-resected non-small cell lung cancer (NSCLC). Tissue microarrays, containing 165 formalin-fixed, paraffin-embedded resected NSCLC tumours from patients diagnosed at the Tom Baker Cancer Centre, Calgary, Canada, between 2003 and 2006, were analyzed for ATM expression using quantitative fluorescence immunohistochemistry...
March 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28418273/thalidomide-for-epistaxis-in-patients-with-hereditary-hemorrhagic-telangiectasia-a-preliminary-study
#13
Jia Fang, Xiaomeng Chen, Bijun Zhu, Haibo Ye, Weitian Zhang, Jian Guan, Kaiming Su
To evaluate the effectiveness of thalidomide for epistaxis in hereditary hemorrhagic telangiectasia (HHT), 7 HHT patients with recurrent epistaxis were treated with thalidomide at an initial dose of 50 mg/d, gradually increasing to 100 mg/d if needed. The Epistaxis Severity Score (ESS) was used to evaluate the treatment effects. Patients reported that epistaxis improved 1 to 3 weeks after starting thalidomide. The mean ESS before treatment, at the end of treatment, and 3 months after stopping treatment was 5...
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28417691/telangiectasias-in-osler-weber-rendu-syndrome
#14
Jason E Cohn, Joshua Scharf
No abstract text is available yet for this article.
April 1, 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28414167/inhibition-of-the-mitochondrial-respiratory-chain-in-gills-of-rhamdia-quelen-experimentally-infected-by-pseudomonas-aeruginosa-interplay-with-reactive-oxygen-species
#15
Matheus D Baldissera, Carine F Souza, Mateus Grings, Belisa S Parmeggiani, Guilhian Leipnitz, Karen L S Moreira, Maria Izabel U M da Rocha, Marcelo L da Veiga, Roberto C V Santos, Lenita M Stefani, Bernardo Baldisserotto
It has long been recognized that there are several infectious diseases linked to the impairment of enzymatic complexes of the mitochondrial respiratory chain, with consequent production of reactive oxygen species (ROS), that contribute to disease pathogenesis. In this study, we determined whether the inhibition on mitochondrial respiratory chain might be considered a pathway involved in the production of ROS in gills of Rhamdia quelen experimentally infected by P. aeruginosa. The animals were divided into two groups with six fish each: uninfected (the negative control group) and infected (the positive control group)...
April 13, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28414153/inflammatory-myopathy-associated-with-myasthenia-gravis-with-and-without-thymic-pathology-report-of-four-cases-and-literature-review
#16
REVIEW
Ernestina Santos, Ester Coutinho, Ana Martins da Silva, António Marinho, Carlos Vasconcelos, Ricardo Taipa, Manuel Melo Pires, Guilherme Gonçalves, Carlos Lopes, Maria Isabel Leite
INTRODUCTION: the association of myasthenia gravis (MG) and inflammatory myopathy is rare and often only one of the diseases is diagnosed. Thymus pathology may be in the origin of such disease association. METHODS: we described four patients with both MG and inflammatory myopathy. RESULTS: these cases correspond to 2.3% of our MG cohort. Case 1: MG, polymyositis and thymolipoma; case 2: MG and necrotizing myopathy without thymic pathology on a background of scleroderma, Raynaud's phenomenon, esophageal dysmotility, sclerodactyly, telangiectasia (CREST); case 3: MG and dermatomyositis without thymic pathology; case 4: MG and dermatomyositis with type C thymoma...
April 13, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28411778/lack-of-efficacy-of-topical-timolol-for-cutaneous-telangiectasias-in-patients-with-hereditary-hemorrhagic-telangiectasia-results-of-a-pilot-study
#17
Hana Jeon, Bernard Cohen
No abstract text is available yet for this article.
May 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28411713/cosmetic-sclerotherapy
#18
Jennifer J Watson, M Ashraf Mansour
Telangiectasias and spider veins are considered a common cosmetic concern for both women and men. Sclerotherapy is a frequently used, low-risk, and highly successful method to treat these venous problems. This article reviews the pathophysiology and diagnosis of telangiectasias and reticular veins as well as the currently available agents and techniques of sclerotherapy. The possible complications and adverse outcomes of sclerotherapy are described. Standard care and follow-up for patients after the procedure are outlined...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28410360/estimation-of-prevalence-of-meibomian-gland-dysfunction-in-japan
#19
Shiro Amano, Kenji Inoue
PURPOSE: To estimate the prevalence of meibomian gland dysfunction (MGD) in the Japanese population using new diagnostic criteria, including lid margin abnormalities and signs of occlusion of the meibomian gland orifices as essential signs. METHODS: The participants were consecutive patients scheduled for cataract surgery at Inouye Eye Hospital. All participants were aged 50 years or older. The participants completed a symptoms questionnaire and underwent a comprehensive slit-lamp examination...
April 12, 2017: Cornea
https://www.readbyqxmd.com/read/28407366/screening-children-for-pulmonary-arteriovenous-malformations-evaluation-of-18-years-of-experience
#20
Anna E Hosman, Els M de Gussem, Walter A F Balemans, Andréanne Gauthier, Cees J J Westermann, Repke J Snijder, Marco C Post, Johannes J Mager
BACKGROUND: Hereditary Hemorrhagic Telangiectasia (HHT) is an autosomal dominant disease with multi-systemic vascular dysplasia. Early diagnosis through screening is important to prevent serious complications. How best to screen children of affected parents for pulmonary arteriovenous malformations (PAVMs) is often subject to debate. Transthoracic contrast echocardiogram (TTCE) is considered optimal in screening for PAVMs in adults. Guidelines for the screening of children are not specific, reflecting the lack of scientific evidence on the best method to use...
April 13, 2017: Pediatric Pulmonology
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