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https://www.readbyqxmd.com/read/28344039/development-of-peptidomimetic-inhibitors-of-the-erg-gene-fusion-product-in-prostate-cancer
#1
Xiaoju Wang, Yuanyuan Qiao, Irfan A Asangani, Bushra Ateeq, Anton Poliakov, Marcin Cieślik, Sethuramasundaram Pitchiaya, Balabhadrapatruni V S K Chakravarthi, Xuhong Cao, Xiaojun Jing, Cynthia X Wang, Ingrid J Apel, Rui Wang, Jean Ching-Yi Tien, Kristin M Juckette, Wei Yan, Hui Jiang, Shaomeng Wang, Sooryanarayana Varambally, Arul M Chinnaiyan
Transcription factors play a key role in the development of diverse cancers, and therapeutically targeting them has remained a challenge. In prostate cancer, the gene encoding the transcription factor ERG is recurrently rearranged and plays a critical role in prostate oncogenesis. Here, we identified a series of peptides that interact specifically with the DNA binding domain of ERG. ERG inhibitory peptides (EIPs) and derived peptidomimetics bound ERG with high affinity and specificity, leading to proteolytic degradation of the ERG protein...
March 16, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28342113/crizotinib-for-untreated-anaplastic-lymphoma-kinase-positive-non-small-cell-lung-cancer-an-evidence-review-group-perspective-of-a-nice-single-technology-appraisal
#2
REVIEW
Philip Morgan, Nerys Woolacott, Mousumi Biswas, Teumzghi Mebrahtu, Melissa Harden, Robert Hodgson
As part of the National Institute for Health and Care Excellence (NICE) single technology appraisal process, the manufacturer of crizotinib submitted evidence on the clinical and cost effectiveness of crizotinib in untreated anaplastic lymphoma kinase-positive (ALK-positive) non-small-cell lung cancer (NSCLC). Crizotinib has previously been assessed by NICE for patients with previously treated ALK-positive NSCLC (TA 296). It was not approved in this previous appraisal, but had been made available through the cancer drugs fund...
March 24, 2017: PharmacoEconomics
https://www.readbyqxmd.com/read/28341839/therapeutic-efficacy-of-neural-stem-cells-originating-from-umbilical-cord-derived-mesenchymal-stem-cells-in-diabetic-retinopathy
#3
Wei Zhang, Yuexin Wang, Jiahui Kong, Meng Dong, Hongtao Duan, Song Chen
The aim of this study was to evaluate the effects of intravitreal injection of neural stem cells (NSCs) originating from human umbilical cord-derived mesenchymal stem cells (UC-MSCs) on neurodegeneration of diabetic retinopathy (DR) in rats. UC-MSCs were isolated and passaged, followed by induction to NSCs in neural differentiation medium. Four weeks following NSC transplantation, treatment attenuated retinal vascular dysfunction compared with non-treated rats, and BDNF and Thy-1 expression was significantly higher in the treated group than in the control group...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28341662/extreme-polarization-sensitivity-in-the-retina-of-the-corn-borer-moth-ostrinia
#4
Gregor Belušič, Katja Šporar, Andrej Meglič
The visual system of the European corn borer (ECB, Ostrinia nubilalis) was analysed with microscopy and electrophysiological methods (ERG, single cell recordings). The ECB has a pair of mainly ultraviolet-sensitive ocelli and a pair of compound eyes, maximally sensitive to green light. The ommatidia contain a tiered, fused rhabdom, consisting of the rhabdomeres of 9-12 photoreceptor cells with sensitivity peak wavelengths at 356, 413, 480, and 530 nm. The photoreceptors in a large dorsal rim area have straight rhabdomeres and high polarization sensitivity (PS1,2=3...
March 24, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28341589/comprehensive-determination-of-prostate-tumor-ets-gene-status-in-clinical-samples-using-the-clia-decipher-assay
#5
Alba Torres, Mohammed Alshalalfa, Scott A Tomlins, Nicholas Erho, Ewan A Gibb, Jijumon Chelliserry, Lony Lim, Lucia L C Lam, Sheila F Faraj, Stephania M Bezerra, Elai Davicioni, Kasra Yousefi, Ashley E Ross, George J Netto, Edward M Schaeffer, Tamara L Lotan
ETS family gene fusions are common in prostate cancer and molecularly define a tumor subset. ERG is the most commonly rearranged member, leading to its overexpression, followed by ETV1, ETV4, and ETV5, and these alterations are generally mutually exclusive. We validated the Decipher prostate cancer assay to detect ETS alterations in a Clinical Laboratory Improvement Amendments-accredited laboratory. Benchmarking against ERG immunohistochemistry and ETV1/4/5 RNA in situ hybridization, we examined the accuracy, precision, and reproducibility of gene expression ETS models using formalin-fixed, paraffin-embedded samples...
March 21, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28338564/studying-the-retinal-source-of-photophobia-by-facial-electroretinography
#6
Christopher W Tyler, Lora T Likova
PURPOSE: Photophobia is a debilitating clinical condition that disrupts the ability to use vision for everyday tasks in bright lighting conditions. The goal of the study is to develop a methodology to study the neural basis of photophobia and the contribution of the melanopic pathway to its etiology with differential chromatic responses by means of standard electroencephalographic recording equipment. METHODS: We introduce and validate the approach of recording wavelength-specific electroretinographic (ERG) responses from the face electrodes of the high-density whole-head electroencephalography recording system under light-adapted conditions...
April 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28332008/case-of-adult-onset-neuronal-intranuclear-hyaline-inclusion-disease-with-negative-electroretinogram
#7
Wataru Yamada, Akira Takekoshi, Kyoko Ishida, Kiyofumi Mochizuki, Jun Sone, Gen Sobue, Yuichi Hayashi, Takashi Inuzuka, Yozo Miyake
PURPOSE: To report the findings in a 72-year-old man with neuronal intranuclear hyaline inclusion disease (NIHID) with the negative-type electroretinogram (ERG) and without night blindness. METHODS: Standard ophthalmological examinations including the medical history, measurements of the best-corrected visual acuity and intraocular pressures, slit-lamp biomicroscopy, ophthalmoscopy, spectral-domain optical coherence tomography, fundus autofluorescence, and perimetry were performed...
March 22, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/28328288/the-role-of-mf-erg-in-the-diagnosis-and-treatment-of-age-related-macular-degeneration-electrophysiological-features-of-amd
#8
Marilita M Moschos, Eirini Nitoda
INTRODUCTION: Age-related macular cegeneration (AMD) is the leading cause of visual dysfunction worldwide, affecting 9-25% of individuals between 65 and 75 years old. METHODS: We have reviewed the published articles investigating the role of multifocal electroretinogram (mf-ERG) in the diagnosis and treatment of AMD. RESULTS: Visual evoked potentials have revealed decreased amplitudes and higher latencies in patients with AMD, while the degeneration of photoreceptors and abnormalities of retinal pigment epithelium can be identified by electro-oculogram recordings...
March 22, 2017: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/28327576/genotypic-spectrum-and-phenotype-correlations-of-abca4-associated-disease-in-patients-of-south-asian-descent
#9
Winston Lee, Kaspar Schuerch, Jana Zernant, Frederick T Collison, Srilaxmi Bearelly, Gerald A Fishman, Stephen H Tsang, Janet R Sparrow, Rando Allikmets
Variants in the ABCA4 gene are the most common cause of juvenile-onset blindness affecting close to 1 in 10 000 people worldwide. Disease severity varies largely according to genotype, which can be specific to ethnic and racial groups. Here we investigate the spectrum of ABCA4 variation and its phenotypic expression in 38 patients of South Asian descent, notably from India, Pakistan, Bangladesh and Sri Lanka. Sequencing of all exons and flanking intronic sequences of ABCA4 revealed disease-causing variants in all patients: 3 in 2...
March 22, 2017: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/28326959/angiosarcoma-of-the-pelvis-in-a-13-year-old-girl
#10
Farah El-Sharkawy, Patricia Isabel Delgado, Antonello Podda, Holly Leigh Neville, Claudia Patricia Rojas
Angiosarcomas are highly aggressive malignancies of vascular origin and are very rarely found in children. We report a case of a 13-year-old girl with a history of abdominal pain and increased abdominal girth. Radiologic imaging showed significant ascites and large pelvic masses involving bilateral adnexa with abdominal spread. Microscopic examination of a biopsy revealed pleomorphic epithelioid and spindle cells with brisk mitotic activity, intracytoplasmic vacuoles, vascular channels, and large areas of hemorrhage and necrosis...
March 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28322323/anti-inflammatory-properties-of-shikonin-contribute-to-improved-early-stage-diabetic-retinopathy
#11
Po-Lin Liao, Cheng-Hui Lin, Ching-Hao Li, Chi-Hao Tsai, Jau-Der Ho, George C Y Chiou, Jaw-Jou Kang, Yu-Wen Cheng
Diabetic retinopathy (DR), a major microvascular complication of diabetes, leads to retinal vascular leakage, neuronal dysfunction, and apoptosis within the retina. In this study, we combined STZ with whole-body hypoxia (10% O2) for quicker induction of early-stage retinopathy in C57BL/6 mice. We also compared the effects of a high glucose condition combined with hypoxia (1% O2) to a low glucose condition by using retinal pigment epithelial (RPE) cells, which are a crucial component of the outer blood-retinal barrier and the damage is related to retinopathy...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28319641/correlation-of-visually-evoked-functional-and-blood-flow-changes-in-the-rat-retina-measured-with-a-combined-oct-erg-system
#12
Bingyao Tan, Erik Mason, Benjamin MacLellan, Kostadinka K Bizheva
Purpose: To correlate visually evoked functional and blood flow changes in the rat retina measured simultaneously with a combined optical coherence tomography and electroretinography system (OCT+ERG). Methods: Male Brown Norway (n = 6) rats were dark adapted and anesthetized with ketamine/xylazine. Visually evoked changes in the retinal blood flow (RBF) and functional response were measured simultaneously with an OCT+ERG system with 3-μm axial resolution in retinal tissue and 47-kHz image acquisition rate...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28317458/use-of-the-instantaneous-wave-free-ratio-or-fractional-flow-reserve-in-pci
#13
Justin E Davies, Sayan Sen, Hakim-Moulay Dehbi, Rasha Al-Lamee, Ricardo Petraco, Sukhjinder S Nijjer, Ravinay Bhindi, Sam J Lehman, Darren Walters, James Sapontis, Luc Janssens, Christiaan J Vrints, Ahmed Khashaba, Mika Laine, Eric Van Belle, Florian Krackhardt, Waldemar Bojara, Olaf Going, Tobias Härle, Ciro Indolfi, Giampaolo Niccoli, Flavo Ribichini, Nobuhiro Tanaka, Hiroyoshi Yokoi, Hiroaki Takashima, Yuetsu Kikuta, Andrejs Erglis, Hugo Vinhas, Pedro Canas Silva, Sérgio B Baptista, Ali Alghamdi, Farrel Hellig, Bon-Kwon Koo, Chang-Wook Nam, Eun-Seok Shin, Joon-Hyung Doh, Salvatore Brugaletta, Eduardo Alegria-Barrero, Martijin Meuwissen, Jan J Piek, Niels van Royen, Murat Sezer, Carlo Di Mario, Robert T Gerber, Iqbal S Malik, Andrew S P Sharp, Suneel Talwar, Kare Tang, Habib Samady, John Altman, Arnold H Seto, Jasvindar Singh, Allen Jeremias, Hitoshi Matsuo, Rajesh K Kharbanda, Manesh R Patel, Patrick Serruys, Javier Escaned
Background Coronary revascularization guided by fractional flow reserve (FFR) is associated with better patient outcomes after the procedure than revascularization guided by angiography alone. It is unknown whether the instantaneous wave-free ratio (iFR), an alternative measure that does not require the administration of adenosine, will offer benefits similar to those of FFR. Methods We randomly assigned 2492 patients with coronary artery disease, in a 1:1 ratio, to undergo either iFR-guided or FFR-guided coronary revascularization...
March 18, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28316007/talimogene-laherparepvec-for-treating-metastatic-melanoma-an-evidence-review-group-perspective-of-a-nice-single-technology-appraisal
#14
REVIEW
Nigel Fleeman, Adrian Bagust, Angela Boland, Sophie Beale, Marty Richardson, Ashma Krishan, Angela Stainthorpe, Ahmed Abdulla, Eleanor Kotas, Lindsay Banks, Miranda Payne
The National Institute for Health and Care Excellence (NICE) invited the manufacturer (Amgen) of talimogene laherparepvec (T-VEC) to submit clinical and cost-effectiveness evidence for previously untreated advanced (unresectable or metastatic) melanoma as part of the Institute's Single Technology Appraisal process. The Liverpool Reviews and Implementation Group (LRiG) at the University of Liverpool was commissioned to act as the Evidence Review Group (ERG). This article presents a summary of the company's submission of T-VEC, the ERG review and the resulting NICE guidance (TA410), issued in September 2016...
March 18, 2017: PharmacoEconomics
https://www.readbyqxmd.com/read/28315987/early-postoperative-evaluation-of-retinal-function-by-electroretinography-after-vitreous-surgery-for-idiopathic-epimacular-membrane
#15
Akira Watanabe, Tamaki Gekka, Kota Arai, K Kohzaki, Hiroshi Tsuneoka
PURPOSE: In this study, we used the PuREC to carry out electroretinography (ERG) measurements using skin electrodes to assess changes before and after microincision vitreous surgery (MIVS) for epiretinal membrane (ERM) and evaluate the stress on retinal function soon after MIVS. METHODS: The study subjects were 18 eyes of 18 patients who underwent MIVS for ERM simultaneously with cataract surgery. ERG measurements were performed using a skin electrode on the day before vitreous surgery, on the day after surgery, and 1 week later...
March 18, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/28314815/the-phosphorylation-state-of-the-drosophila-trp-channel-modulates-the-frequency-response-to-oscillating-light-in-vivo
#16
Olaf Voolstra, Elisheva Rhodes-Mordov, Ben Katz, Jonas-Peter Bartels, Claudia Oberegelsbacher, Susanne Katharina Schotthöfer, Bushra Yasin, Hanan Tzadok, Armin Huber, Baruch Minke
Drosophila photoreceptors respond to oscillating light of high frequency (∼100 Hz), while the detected maximal frequency is modulated by the light rearing conditions, thus maintaining high sensitivity to light and high temporal resolution. However, the molecular basis for this adaptive process is unclear. Here, we report that dephosphorylation of the light-activated Transient Receptor Potential (TRP) ion channel at S936 is a fast, graded, light-, and Ca(2+)-dependent process that is partially modulated by the rhodopsin phosphatase Retinal Degeneration C (RDGC)...
March 17, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28304243/retinal-a2a-and-a3-adenosine-receptors-modulate-the-components-of-the-rat-electroretinogram
#17
Gudmundur Jonsson, Thor Eysteinsson
Adenosine is a neuromodulator present in various areas of the central nervous system, including the retina. Adenosine may serve a neuroprotective role in the retina, based on electroretinogram (ERG) recordings from the rat retina. Our purpose was to assess the role of A2A and A3 adenosine receptors in the generation and modulation of the rat ERG. The flash ERG was recorded with corneal electrodes from Sprague Dawley rats. Agonists and antagonists for A2A and A3 receptors, and adenosine were injected (5 µl) into the vitreous...
January 2017: Visual Neuroscience
https://www.readbyqxmd.com/read/28303363/test-retest-reliability-of-scotopic-full-field-electroretinograms-in-rabbits
#18
Jan Luebke, Alexandra Anton, Michael Bach
PURPOSE: To explore test-retest reliability of standard scotopic full-field ERG measurements in New Zealand White rabbits. The ERG is widely used for testing of retinal integrity after any ocular treatment. We here present detailed stimulus-response dependencies for single healthy and untreated animals, concentrating on test-retest reproducibility. MATERIALS AND METHODS: Five New Zealand White rabbits (aged 8-10 weeks, weight about 2.0-2.5 kg) underwent binocular ERG measurements after intramuscular anesthesia and pharmaceutical pupillary dilatation at a baseline day and 10 days later...
March 16, 2017: Documenta Ophthalmologica. Advances in Ophthalmology
https://www.readbyqxmd.com/read/28301528/genome-wide-mapping-of-histone-h3k9me2-in-acute-myeloid-leukemia-reveals-large-chromosomal-domains-associated-with-massive-gene-silencing-and-sites-of-genome-instability
#19
Anna C Salzberg, Abigail Harris-Becker, Evgenya Y Popova, Nikki Keasey, Thomas P Loughran, David F Claxton, Sergei A Grigoryev
A facultative heterochromatin mark, histone H3 lysine 9 dimethylation (H3K9me2), which is mediated by histone methyltransferases G9a/GLP (EHMT2/1), undergoes dramatic rearrangements during myeloid cell differentiation as observed by chromatin imaging. To determine whether these structural transitions also involve genomic repositioning of H3K9me2, we used ChIP-sequencing to map genome-wide topography of H3K9me2 in normal human granulocytes, normal CD34+ hematopoietic progenitors, primary myeloblasts from acute myeloid leukemia (AML) patients, and a model leukemia cell line K562...
2017: PloS One
https://www.readbyqxmd.com/read/28298625/periodontal-disease-and-fam20a-mutations
#20
Piranit Nik Kantaputra, Chotika Bongkochwilawan, Mark Lubinsky, Supansa Pata, Massupa Kaewgahya, Huei Jinn Tong, James R Ketudat Cairns, Yeliz Guven, Nipon Chaisrisookumporn
Enamel-renal-gingival syndrome (ERGS; OMIM #204690), a rare autosomal recessive disorder caused by mutations in FAM20A, is characterized by nephrocalcinosis, nephrolithiasis, amelogenesis imperfecta, hypoplastic type, gingival fibromatosis and other dental abnormalities, including hypodontia and unerupted teeth with large dental follicles. We report three patients and their families with findings suggestive of ERGS. Mutation analysis of FAM20A was performed in all patients and their family members. Patients with homozygous frameshift and compound heterozygous mutations in FAM20A had typical clinical findings along with periodontitis...
March 16, 2017: Journal of Human Genetics
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