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https://www.readbyqxmd.com/read/29784165/association-between-positive-corneal-rim-cultures-and-microbiology-screening-protocols-in-ontario
#1
Rahul A Sharma, John S Y Park, Yao Wang, Tinghua Zhang, Linda Sharpen, William Dixon, Rookaya Mather
OBJECTIVE: (i) To assess the rate of positive microbiological cultures of corneas prepared by the Eye Bank of Canada (Ontario Division) between January 1, 2012, and December 31, 2013; (ii) to review the microbiology protocols at the 5 major transplant centres in Ontario; and (iii) to assess the incidence of endophthalmitis during the study period. DESIGN: Retrospective chart review. PARTICIPANTS: A total of 4186 consecutive cultured corneal tissues prepared by the Eye Bank from January 1, 2012, to December 31, 2013...
June 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29780684/a-new-insight-into-identification-of-in-silico-analysis-of-natural-compounds-targeting-gpr120
#2
Nagaraju Chinthakunta, Srinivasulu Cheemanapalli, Surekha Chinthakunta, C M Anuradha, Suresh Kumar Chitta
G-protein coupled receptor (GPR120) is an omega-3 fatty acid receptor that inhibits macrophage-induced tissue inflammation. Recent studies revealed GPR120 promotes colorectal carcinoma through modulation of VEGF, IL-8, PGE2, and NF-kB expression. However, three-dimensional structure of GPR120 is not yet available in Protein Data Bank (PDB). In the present study, we focused on a 3-D structural model of GPR120 has been constructed using homology modeling techniques. The structural quality of the predicted GPR120 model was verified using Procheck, Whatif, ProSA, and Verify 3D...
2018: Network Modeling and Analysis in Health Informatics and Bioinformatics
https://www.readbyqxmd.com/read/29776953/the-landscape-of-actionable-genomic-alterations-in-cell-free-circulating-tumor-dna-from-21-807-advanced-cancer-patients
#3
Oliver A Zill, Kimberly C Banks, Stephen R Fairclough, Stefanie Mortimer, James V Vowles, Reza Mokhtari, David R Gandara, Philip C Mack, Justin I Odegaard, Rebecca J Nagy, Arthur M Baca, Helmy Eltoukhy, Darya I Chudova, Richard B Lanman, AmirAli Talasaz
PURPOSE: Cell-free DNA (cfDNA) sequencing provides a non-invasive method for obtaining actionable genomic information to guide personalized cancer treatment, but the presence of multiple alterations in circulation related to treatment and tumor heterogeneity complicate the interpretation of the observed variants. Experimental Design: We describe the somatic mutation landscape of 70 cancer genes from cfDNA deep-sequencing analysis of 21,807 patients with treated, late-stage cancers across >50 cancer types...
May 18, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/29764932/distribution-of-mast-cell-subtypes-in-interstitial-cystitis-implications-for-novel-diagnostic-and-therapeutic-strategies
#4
Shabana T Malik, Brian R Birch, David Voegeli, Mandy Fader, Vipul Foria, Alan J Cooper, Andrew F Walls, Bashir A Lwaleed
AIMS: To identify the presence and geographical distribution of mast cell (MC) subtypes: MCT (tryptase positive-chymase negative) and MCTC (tryptase positive-chymase positive) in bladder tissue. METHODS: Bladder tissue was obtained from patients with painful bladder syndrome/interstitial cystitis (n=14) and normal histology from University Hospital Southampton tissue bank. Sequential tissue slices were immunohistochemically stained for MC subtypes using anti-MC tryptase (for MCT and MCTC ) and anti-MC chymase (for MCTC )...
May 15, 2018: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29761862/cellular-stress-and-apoptosis-contribute-to-the-pathogenesis-of-autism-spectrum-disorder
#5
Daoyin Dong, Horst Ronald Zielke, David Yeh, Peixin Yang
The molecular pathogenesis of autism spectrum disorder, a neurodevelopmental disorder, is still elusive. In this study, we investigated the possible roles of endoplasmic reticulum (ER) stress, oxidative stress, and apoptosis as molecular mechanisms underlying autism. This study compared the activation of ER stress signals (protein kinase R-like endoplasmic reticulum kinase [PERK], activating transcription factor 6 [ATF6], inositol-requiring enzyme 1 alpha [IRE1α]) in different brain regions (prefrontal cortex, hippocampus, cerebellum) in subjects with autism and in age-matched controls...
May 15, 2018: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/29758948/argyrophilic-grain-pathology-in-frontotemporal-lobar-degeneration-demographic-clinical-neuropathological-and-genetic-features
#6
María José Gil, María Sagrario Manzano, María Luz Cuadrado, Cristina Fernández, Elena Góméz, Carmen Matesanz, Miguel Calero, Alberto Rábano
Frontotemporal lobar degeneration (FTLD) is a clinically, pathologically, and genetically heterogeneous group of disorders that affect the frontal and temporal lobes of the brain. FTLD classification distinguishes three main neuropathological groups: FTLD-tau, FTLD-TDP, and FTLD-FUS. As a four-repeat tauopathy, argyrophilic grain disease (AGD) is included in the FTLD-tau group. AGD may also appear in association with other neuropathological disorders. We describe the demographic, clinical, neuropathological, and genetic characteristics of a series of FTLD cases presenting with AGD...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29756415/the-expression-of-androgen-receptor-and-its-variants-in-human-prostate-cancer-tissue-according-to-disease-status-and-its-prognostic-significance
#7
Sung Woo Park, Jung Hee Kim, Hyun Jung Lee, Dong Hoon Shin, Sang Don Lee, Sik Yoon
PURPOSE: To evaluate changes in the expression of androgen receptor (AR) and its variants (ARVs) in human prostate cancer (PCa) tissues according to disease status, and its prognostic significance following radical prostatectomy (RP). MATERIALS AND METHODS: A total of 282 PCa cases were evaluated, which included 252 localized PCa, 8 metastatic castration resistant prostate cancer (CRPC), and 22 benign prostatic hyperplasia (BPH) cases. Samples were collected from patients who underwent RP or transurethral resection and were stored in ethically approved tissue banks...
April 16, 2018: World Journal of Men's Health
https://www.readbyqxmd.com/read/29752869/allogeneic-umbilical-cord-blood-infusion-for-adults-with-ischemic-stroke-clinical-outcomes-from-a-phase-1-safety-study
#8
Daniel T Laskowitz, Ellen R Bennett, Rebecca J Durham, John J Volpi, Jonathan R Wiese, Michael Frankel, Elizabeth Shpall, Jeffry M Wilson, Jesse Troy, Joanne Kurtzberg
Stroke is a major cause of death and long-term disability, affecting one in six people worldwide. The only currently available approved pharmacological treatment for ischemic stroke is tissue plasminogen activator; however, relatively few patients are eligible for this therapy. We hypothesized that intravenous (IV) infusion of banked unrelated allogeneic umbilical cord blood (UCB) would improve functional outcomes in patients with ischemic stroke. To investigate this, we conducted a phase 1 open-label trial to assess the safety and feasibility of a single IV infusion of non-human leukocyte antigen (HLA) matched, ABO matched, unrelated allogeneic UCB into adult stroke patients...
May 12, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29752867/topical-application-of-culture-expanded-cd34-umbilical-cord-blood-cells-from-frozen-units-accelerates-healing-of-diabetic-skin-wounds-in-mice
#9
Jennifer Whiteley, Theresa Chow, Hibret Adissu, Armand Keating, Ian M Rogers
Chronic and nonhealing wounds are constant health issues facing patients with type 2 diabetes. As the incidence of type 2 diabetes mellitus (T2DM) increases, the incidence of chronic wounds and amputations will rise. T2DM is associated with peripheral arterial occlusive disease, which leads to the development of nonhealing skin ulcers after minor trauma. Patients develop severe pain limiting their mobility and ability to work and take care of themselves thus putting a significant burden on the family and society...
May 12, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29750797/critical-depth-raman-spectroscopy-enables-home-use-non-invasive-glucose-monitoring
#10
Signe M Lundsgaard-Nielsen, Anders Pors, Stefan O Banke, Jan E Henriksen, Dietrich K Hepp, Anders Weber
One of the most ambitious endeavors in the field of diabetes technology is non-invasive glucose sensing. In the past decades, a number of different technologies have been assessed, but none of these have found its entry into general clinical use. We report on the development of a table-top confocal Raman spectrometer that was used in the home of patients with diabetes and operated for extended periods of time unsupervised and without recalibration. The system is based on measurement of glucose levels at a 'critical depth' in the skin, specifically in the interstitial fluid located below the stratum corneum but above the underlying adipose tissue layer...
2018: PloS One
https://www.readbyqxmd.com/read/29746818/lymphatic-markers-in-the-human-optic-nerve
#11
A Trost, C Runge, D Bruckner, A Kaser-Eichberger, B Bogner, C Strohmaier, H A Reitsamer, F Schroedl
Tissues of the central nervous system (CNS), including the optic nerve (ON), are considered a-lymphatic. However, lymphatic structures have been described in the dura mater of human ON sheaths. Since it is known that lymphatic markers are also expressed by single non-lymphatic cells, these results need confirmation according to the consensus statement for the use of lymphatic markers in ophthalmologic research. The aim of this study was to screen for the presence of lymphatic structures in the adult human ON using a combination of four lymphatic markers...
May 7, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29742422/a-general-framework-for-interrogation-of-mrna-stability-programs-identifies-rna-binding-proteins-that-govern-cancer-transcriptomes
#12
Gabrielle Perron, Pouria Jandaghi, Shraddha Solanki, Maryam Safisamghabadi, Cristina Storoz, Mehran Karimzadeh, Andreas I Papadakis, Madeleine Arseneault, Ghislaine Scelo, Rosamonde E Banks, Jorg Tost, Mark Lathrop, Simon Tanguay, Alvis Brazma, Sidong Huang, Fadi Brimo, Hamed S Najafabadi, Yasser Riazalhosseini
Widespread remodeling of the transcriptome is a signature of cancer; however, little is known about the post-transcriptional regulatory factors, including RNA-binding proteins (RBPs) that regulate mRNA stability, and the extent to which RBPs contribute to cancer-associated pathways. Here, by modeling the global change in gene expression based on the effect of sequence-specific RBPs on mRNA stability, we show that RBP-mediated stability programs are recurrently deregulated in cancerous tissues. Particularly, we uncovered several RBPs that contribute to the abnormal transcriptome of renal cell carcinoma (RCC), including PCBP2, ESRP2, and MBNL2...
May 8, 2018: Cell Reports
https://www.readbyqxmd.com/read/29741921/how-variable-are-achilles-allografts-used-for-anterior-cruciate-ligament-reconstruction-a-biomechanical-study
#13
Alexander E Weber, Erik N Mayer, Amit Nathani, Dan X Chen, Anne M Kelly, Scott A Rodeo, Asheesh Bedi
BACKGROUND: Allograft tendon used in anterior cruciate ligament reconstruction (ACLR) requires sterilization before implantation. Low-dose gamma irradiation is a means of sterilization that may minimize tissue damage. PURPOSE: To quantify the variability in mechanical properties between low-dose irradiated Achilles tendon allografts used for ACLR. STUDY DESIGN: Descriptive laboratory study. METHODS: A total of 15 intact outer-third Achilles tendon allograft specimens were collected from the remains of full Achilles allografts used for intraoperative ACLR at a single hospital...
May 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29736576/stem-cells-for-osteochondral-regeneration
#14
Raphaël F Canadas, Rogério P Pirraco, J Miguel Oliveira, Rui L Reis, Alexandra P Marques
Stem cell research plays a central role in the future of medicine, which is mainly dependent on the advances on regenerative medicine (RM), specifically in the disciplines of tissue engineering (TE) and cellular therapeutics. All RM strategies depend upon the harnessing, stimulation, or guidance of endogenous developmental or repair processes in which cells have an important role. Among the most clinically challenging disorders, cartilage degeneration, which also affects subchondral bone becoming an osteochondral (OC) defect, is one of the most demanding...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29728941/regulatory-aspects-of-tissue-donation-banking-and-transplantation-in-india
#15
Astrid Lobo Gajiwala
Amendments to India's Transplantation of Human Organs Act, 1994, have established the legality of tissue donation and transplantation from deceased donors and the conditions under which they are permitted. The amended Act, now known as The Transplantation of Human Organs and Tissues Act, 1994, seeks to prevent the commercialization of tissue donation and to guarantee the safety of indigenous allografts. Registration of tissue banks, compliance with national standards and the appointment of transplant co-ordinators in hospitals registered under the Act are now mandatory...
May 4, 2018: Cell and Tissue Banking
https://www.readbyqxmd.com/read/29724730/metabolic-pathways-and-immunometabolism-in-rare-kidney-diseases
#16
Peter C Grayson, Sean Eddy, Jaclyn N Taroni, Yaíma L Lightfoot, Laura Mariani, Hemang Parikh, Maja T Lindenmeyer, Wenjun Ju, Casey S Greene, Brad Godfrey, Clemens D Cohen, Jeffrey Krischer, Matthias Kretzler, Peter A Merkel
OBJECTIVES: To characterise renal tissue metabolic pathway gene expression in different forms of glomerulonephritis. METHODS: Patients with nephrotic syndrome (NS), antineutrophil cytoplasmic antibody-associated vasculitis (AAV), systemic lupus erythematosus (SLE) and healthy living donors (LD) were studied. Clinically indicated renal biopsies were obtained at time of diagnosis and microdissected into glomerular and tubulointerstitial compartments. Microarray-derived differential gene expression of 88 genes representing critical enzymes of metabolic pathways and 25 genes related to immune cell markers was compared between disease groups...
May 3, 2018: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/29724592/potential-genetic-modifiers-of-disease-risk-and-age-at-onset-in-patients-with-frontotemporal-lobar-degeneration-and-grn-mutations-a-genome-wide-association-study
#17
Cyril Pottier, Xiaolai Zhou, Ralph B Perkerson, Matt Baker, Gregory D Jenkins, Daniel J Serie, Roberta Ghidoni, Luisa Benussi, Giuliano Binetti, Adolfo López de Munain, Miren Zulaica, Fermin Moreno, Isabelle Le Ber, Florence Pasquier, Didier Hannequin, Raquel Sánchez-Valle, Anna Antonell, Albert Lladó, Tammee M Parsons, NiCole A Finch, Elizabeth C Finger, Carol F Lippa, Edward D Huey, Manuela Neumann, Peter Heutink, Matthis Synofzik, Carlo Wilke, Robert A Rissman, Jaroslaw Slawek, Emilia Sitek, Peter Johannsen, Jørgen E Nielsen, Yingxue Ren, Marka van Blitterswijk, Mariely DeJesus-Hernandez, Elizabeth Christopher, Melissa E Murray, Kevin F Bieniek, Bret M Evers, Camilla Ferrari, Sara Rollinson, Anna Richardson, Elio Scarpini, Giorgio G Fumagalli, Alessandro Padovani, John Hardy, Parastoo Momeni, Raffaele Ferrari, Francesca Frangipane, Raffaele Maletta, Maria Anfossi, Maura Gallo, Leonard Petrucelli, EunRan Suh, Oscar L Lopez, Tsz H Wong, Jeroen G J van Rooij, Harro Seelaar, Simon Mead, Richard J Caselli, Eric M Reiman, Marwan Noel Sabbagh, Mads Kjolby, Anders Nykjaer, Anna M Karydas, Adam L Boxer, Lea T Grinberg, Jordan Grafman, Salvatore Spina, Adrian Oblak, M-Marsel Mesulam, Sandra Weintraub, Changiz Geula, John R Hodges, Olivier Piguet, William S Brooks, David J Irwin, John Q Trojanowski, Edward B Lee, Keith A Josephs, Joseph E Parisi, Nilüfer Ertekin-Taner, David S Knopman, Benedetta Nacmias, Irene Piaceri, Silvia Bagnoli, Sandro Sorbi, Marla Gearing, Jonathan Glass, Thomas G Beach, Sandra E Black, Mario Masellis, Ekaterina Rogaeva, Jean-Paul Vonsattel, Lawrence S Honig, Julia Kofler, Amalia C Bruni, Julie Snowden, David Mann, Stuart Pickering-Brown, Janine Diehl-Schmid, Juliane Winkelmann, Daniela Galimberti, Caroline Graff, Linn Öijerstedt, Claire Troakes, Safa Al-Sarraj, Carlos Cruchaga, Nigel J Cairns, Jonathan D Rohrer, Glenda M Halliday, John B Kwok, John C van Swieten, Charles L White, Bernardino Ghetti, Jill R Murell, Ian R A Mackenzie, Ging-Yuek R Hsiung, Barbara Borroni, Giacomina Rossi, Fabrizio Tagliavini, Zbigniew K Wszolek, Ronald C Petersen, Eileen H Bigio, Murray Grossman, Vivianna M Van Deerlin, William W Seeley, Bruce L Miller, Neill R Graff-Radford, Bradley F Boeve, Dennis W Dickson, Joanna M Biernacka, Rosa Rademakers
BACKGROUND: Loss-of-function mutations in GRN cause frontotemporal lobar degeneration (FTLD). Patients with GRN mutations present with a uniform subtype of TAR DNA-binding protein 43 (TDP-43) pathology at autopsy (FTLD-TDP type A); however, age at onset and clinical presentation are variable, even within families. We aimed to identify potential genetic modifiers of disease onset and disease risk in GRN mutation carriers. METHODS: The study was done in three stages: a discovery stage, a replication stage, and a meta-analysis of the discovery and replication data...
April 30, 2018: Lancet Neurology
https://www.readbyqxmd.com/read/29724045/histological-evaluation-of-the-healing-process-of-various-bone-graft-materials-after-engraftment-into-the-human-body
#18
Sang Hyun Jo, Young-Kyun Kim, Yong-Hoon Choi
The purpose of this study was to measure the level of new bone formation induced by various bone graft materials to provide clinicians with more choices. The samples were divided into three groups: group 1 ( n = 9: allograft + xenograft, DBX® , San Francisco, CA, USA + Bio-Oss® , Princeton, NJ, USA), group 2 ( n = 10: xenograft, Bio-Oss® ), and group 3 ( n = 8: autogenous tooth bone graft, AutoBT® , Korea Tooth Bank, Seoul, Korea). The average duration of evaluation was 9.56, 2...
May 2, 2018: Materials
https://www.readbyqxmd.com/read/29722907/use-of-somatic-cell-banks-in-the-conservation-of-wild-felids
#19
REVIEW
Érika A Praxedes, Alana A Borges, Maria V O Santos, Alexsandra F Pereira
The conservation of biological resources is an interesting strategy for the maintenance of biodiversity, especially for wild felids who are constantly threatened with extinction. For this purpose, cryopreservation techniques have been used for the long-term storage of gametes, embryos, gonadal tissues, and somatic cells and tissues. The establishment of these banks has been suggested as a practical approach to the preservation of species and, when done in tandem with assisted reproductive techniques, could provide the means for reproducing endangered species...
May 3, 2018: Zoo Biology
https://www.readbyqxmd.com/read/29718453/molecular-landscape-of-erbb2-erbb3-mutated-colorectal-cancer
#20
Jonathan M Loree, Ann M Bailey, Amber M Johnson, Yao Yu, Wenhui Wu, Christopher A Bristow, Jennifer S Davis, Kenna R Shaw, Russell Broaddus, Kimberly C Banks, Richard B Lanman, Funda Meric-Bernstam, Michael J Overman, Scott Kopetz, Kanwal Raghav
Background: Despite growing therapeutic relevance of ERBB2 amplifications in colorectal cancer (CRC), little is known about ERBB2/ERBB3 mutations. We aimed to characterize these subsets of CRC. Methods: We performed a retrospective analysis of 419 CRC patients from MD Anderson (MDACC) and 619 patients from the Nurses' Health Study (NHS)/Health Professionals Follow-Up Study (HPFS) with tissue sequencing, clinicopathologic, mutational, and consensus molecular subtype (CMS) profiles of ERBB2/ERBB3 mutant patients...
April 27, 2018: Journal of the National Cancer Institute
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