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https://www.readbyqxmd.com/read/29792854/bergmann-glial-sonic-hedgehog-signaling-activity-is-required-for-proper-cerebellar-cortical-expansion-and-architecture
#1
Frances Y Cheng, Jonathan T Fleming, Chin Chiang
Neuronal-glial relationships play a critical role in the maintenance of central nervous system architecture and neuronal specification. A deeper understanding of these relationships can elucidate cellular cross-talk capable of sustaining proper development of neural tissues. In the cerebellum, cerebellar granule neuron precursors (CGNPs) proliferate in response to Purkinje neuron-derived Sonic hedgehog (Shh) before ultimately exiting the cell cycle and migrating radially along Bergmann glial fibers. However, the function of Bergmann glia in CGNP proliferation remains not well defined...
May 21, 2018: Developmental Biology
https://www.readbyqxmd.com/read/29792166/the-pdgfr%C3%AE-erk1-2-pathway-regulates-cdcp1-expression-in-triple-negative-breast-cancer
#2
Luca Forte, Federica Turdo, Cristina Ghirelli, Piera Aiello, Patrizia Casalini, Marilena Valeria Iorio, Elvira D'Ippolito, Patrizia Gasparini, Roberto Agresti, Beatrice Belmonte, Gabriella Sozzi, Lucia Sfondrini, Elda Tagliabue, Manuela Campiglio, Francesca Bianchi
BACKGROUND: CDCP1, a transmembrane protein with tumor pro-metastatic activity, was recently identified as a prognostic marker in TNBC, the most aggressive breast cancer subtype still lacking an effective molecular targeted therapy. The mechanisms driving CDCP1 over-expression are not fully understood, although several stimuli derived from tumor microenvironment, such as factors present in Wound Healing Fluids (WHFs), reportedly increase CDCP1 levels. METHODS: The expression of CDCP1, PDGFRβ and ERK1/2cell was tested by Western blot after stimulation of MDA-MB-231 cells with PDGF-BB and, similarly, in presence or not of ERK1/2 inhibitor in a panel of TNBC cell lines...
May 23, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29791759/ctnnal1-inhibits-ozone-induced-epithelial-mesenchymal-transition-in-human-bronchial-epithelial-cells
#3
Meiling Tan, Caixia Liu, Wenjie Huang, Linhong Deng, Xiaoqun Qin, Yang Xiang
NEW FINDINGS: What is the central question of this study? In our previous work, CTNNAL1 (catenin alpha-like 1), an asthma-related epithelial adhesion molecule, was found to play a vital role in airway epithelial wound repair. The effect of CTNNAL1 on airway EMT has not been previously explored. What is the main finding and its importance? CTNNAL1 inhibits ozone-induced airway EMT features and mediated by repressing the expression of Twist1 mRNA and reducing TGF-β1 levels. These findings contribute to our understanding of the pathology of airway EMT and may indicate a possible therapeutic target for airway remodelling in bronchial asthma...
May 23, 2018: Experimental Physiology
https://www.readbyqxmd.com/read/29791718/alopecia-areata-a-review-of-disease-pathogenesis
#4
REVIEW
F Rajabi, L A Drake, M M Senna, N Rezaei
Alopecia areata is a disorder that results in non-scarring hair loss. The psychological impact can be significant, leading to feelings of depression and social isolation. The disease remains incurable though it has been studied for years. Available treatment options at best, are beneficial for milder cases, and the rate of relapse is high. Understanding the exact mechanisms of hair loss in alopecia areata is therefore of utmost importance to help identify potential therapeutic targets. The main theory of alopecia areata pathogenesis is that it is an autoimmune phenomenon resulting from a disruption in hair follicle immune privilege...
May 23, 2018: British Journal of Dermatology
https://www.readbyqxmd.com/read/29791497/xenin-is-a-novel-anorexigen-in-goldfish-carassius-auratus
#5
Brent Kerbel, Kimberly Badal, Lakshminarasimhan Sundarrajan, Ayelen Blanco, Suraj Unniappan
Xenin, a highly conserved 25 amino acid peptide cleaved from the N-terminus of the coatomer protein alpha (COPA), is emerging as a food intake regulator in mammals and birds. To date, no research has been conducted on xenin biology in fish. This study aims to identify the copa mRNA encoding xenin in goldfish (Carassius auratus) as a model, to elucidate its regulation by feeding, and to describe the role of xenin on appetite. First, a partial sequence of copa cDNA, a region encoding xenin, was identified from goldfish brain...
2018: PloS One
https://www.readbyqxmd.com/read/29789683/bmp-2-restoration-aids-in-recovery-from-liver-fibrosis-by-attenuating-tgf-%C3%AE-1-signaling
#6
Yueh-Hua Chung, Ying-Hsien Huang, Tien-Huei Chu, Chun-Lin Chen, Pey-Ru Lin, Shih-Chung Huang, Deng-Chyang Wu, Chao-Cheng Huang, Tsung-Hui Hu, Ying-Hsien Kao, Ming-Hong Tai
Transforming growth factor-β (TGF-β) plays a central role in hepatic fibrogenesis. This study investigated the function and mechanism of bone morphogenetic protein-2 (BMP-2) in regulation of hepatic fibrogenesis. BMP-2 expression in fibrotic liver was measured in human tissue microarray and mouse models of liver fibrosis induced by bile duct ligation surgery or carbon tetrachloride administration. Adenovirus-mediated BMP-2 gene delivery was used to test the prophylactic effect on liver fibrosis. Primary hepatic stellate cells (HSC), HSC-T6 and clone-9 cell lines were used to study the interplay between BMP-2 and TGF-β1...
May 22, 2018: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/29789534/the-novel-klf4-plac8-signaling-pathway-regulates-lung-cancer-growth
#7
Yunlu Jia, Xiaogang Ying, Jichun Zhou, Yongxia Chen, Xiao Luo, Shudu Xie, Qin Chuan Wang, Wenxian Hu, Linbo Wang
Accumulating evidence suggests that placenta-specific 8 (PLAC8) plays an important role in normal cellular process and human diseases, including multiple types of human tumors, and its role is highly relied upon in cellular and physiologic contexts. However, there are no reports on its expression profile and biological roles during lung cancer development. In the current study, both the clinical implications and biological effects of PLAC8 in lung cancer (LC) progression were investigated, and we identified and described the novel Krüppel-like factor 4 (KLF4)/PLAC8 regulatory pathway in cancer progression...
May 22, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29789250/sectioning-of-the-anterior-intermeniscal-ligament-changes-knee-loading-mechanics
#8
Matthieu Ollivier, Julie Falguières, Martine Pithioux, Philippe Boisrenoult, Phillippe Beaufils, Nicolas Pujol
PURPOSE: The purpose of this cadaver research project was to describe the biomechanical consequences of anterior intermeniscal ligament (AIML) resection on menisci function under load conditions in full extension and 60° of flexion. METHODS: Ten unpaired fresh frozen cadaveric knees were dissected leaving the knee joint intact with its capsular and ligamentous attachments. The femur and tibia were sectioned 15 cm from the joint line and mounted onto the loading platform...
May 19, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29788991/bilateral-tympanokeratomas-cholesteatomas-with-bilateral-otitis-media-unilateral-otitis-interna-and-acoustic-neuritis-in-a-dog
#9
Liv Østevik, Kathrine Rudlang, Tuva Holt Jahr, Mette Valheim, Bradley Lyndon Njaa
BACKGROUND: An aural cholesteatoma, more appropriately named tympanokeratoma, is an epidermoid cyst of the middle ear described in several species, including dogs, humans and Mongolian gerbils. The cyst lining consists of stratified, keratinizing squamous epithelium with central accumulation of a keratin debris. This case report describes vestibular ganglioneuritis and perineuritis in a dog with chronic otitis, bilateral tympanokeratomas and presumed extension of otic infection to the central nervous system...
May 22, 2018: Acta Veterinaria Scandinavica
https://www.readbyqxmd.com/read/29788132/freiburg-rna-tools-a-central-online-resource-for-rna-focused-research-and-teaching
#10
Martin Raden, Syed M Ali, Omer S Alkhnbashi, Anke Busch, Fabrizio Costa, Jason A Davis, Florian Eggenhofer, Rick Gelhausen, Jens Georg, Steffen Heyne, Michael Hiller, Kousik Kundu, Robert Kleinkauf, Steffen C Lott, Mostafa M Mohamed, Alexander Mattheis, Milad Miladi, Andreas S Richter, Sebastian Will, Joachim Wolff, Patrick R Wright, Rolf Backofen
The Freiburg RNA tools webserver is a well established online resource for RNA-focused research. It provides a unified user interface and comprehensive result visualization for efficient command line tools. The webserver includes RNA-RNA interaction prediction (IntaRNA, CopraRNA, metaMIR), sRNA homology search (GLASSgo), sequence-structure alignments (LocARNA, MARNA, CARNA, ExpaRNA), CRISPR repeat classification (CRISPRmap), sequence design (antaRNA, INFO-RNA, SECISDesign), structure aberration evaluation of point mutations (RaSE), and RNA/protein-family models visualization (CMV), and other methods...
May 21, 2018: Nucleic Acids Research
https://www.readbyqxmd.com/read/29788083/evaluation-of-an-intensive-interdisciplinary-pain-treatment-based-on-acceptance-and-commitment-therapy-for-adolescents-with-chronic-pain-and-their-parents-a-nonrandomized-clinical-trial
#11
Mike K Kemani, Marie Kanstrup, Abbie Jordan, Line Caes, Jeremy Gauntlett-Gilbert
Objective: Parental factors are central in the development and maintenance of chronic pain in youths. Only a handful of studies have investigated the impact of psychological treatments for pediatric chronic pain on parental factors, and the relationships between changes in parental and adolescent factors. In the current study, we evaluated the effects of an intensive interdisciplinary pain treatment (IIPT) program based on Acceptance and Commitment Therapy (ACT) for adolescents with chronic pain, on adolescent and parental variables, and the relationship between parental psychological flexibility and adolescent pain acceptance...
May 17, 2018: Journal of Pediatric Psychology
https://www.readbyqxmd.com/read/29786862/experimental-fluence-modulated-proton-computed-tomography-by-pencil-beam-scanning
#12
George Dedes, Robert P Johnson, Mark Pankuch, Nick Detrich, Willemijn M A Pols, Simon Rit, Reinhard W Schulte, Katia Parodi, Guillaume Landry
PURPOSE: This experimental study is aimed at demonstrating, using a simple cylindrical water phantom, the feasibility of fluence modulated proton computed tomography (FMpCT) by pencil beam scanning (PBS) proton computed tomography (pCT). METHODS: The phase II pCT prototype of the Loma Linda U. and U. C. Santa Cruz was operated using the PBS beam line of the Northwestern Medicine Chicago Proton Center. A 20x10 grid of 1.37 cm full width half maximum pencil beams (PB) equally spaced by 1 cm was used to acquire 45 projections in step and shoot mode...
May 22, 2018: Medical Physics
https://www.readbyqxmd.com/read/29786703/12-years-preservation-of-maxillary-permanent-incisors-with-cervical-root-fractures-adjacent-to-aggressive-periodontitis-report-of-a-case
#13
Sandra Tobiska, Gabriel Krastl
This case report presents long-term results following horizontal root fracture of both maxillary central incisors in a 19-year-old woman with aggressive periodontitis. Due to extensive marginal bone loss and the close proximity of the fracture lines to the bottoms of the periodontal pockets, the prognosis of both teeth was uncertain at the time of the accident. Nevertheless, a conservative treatment strategy consisting of splinting and nonsurgical periodontal therapy was initiated. Follow-up at 12 years after the start of treatment revealed a stable situation from clinical and radiologic perspectives...
May 17, 2018: Quintessence International
https://www.readbyqxmd.com/read/29786550/generation-of-defined-neural-populations-from-pluripotent-stem-cells
#14
REVIEW
Sarah F McComish, Maeve A Caldwell
Effective and efficient generation of human neural stem cells and subsequently functional neural populations from pluripotent stem cells has facilitated advancements in the study of human development and disease modelling. This review will discuss the established protocols for the generation of defined neural populations including regionalized neurons and astrocytes, oligodendrocytes and microglia. Early protocols were established in embryonic stem cells (ESC) but the discovery of induced pluripotent stem cells (iPSC) in 2006 provided a new platform for modelling human disorders of the central nervous system (CNS)...
July 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29785994/the-efficacy-of-intravitreal-dexamethasone-implant-as-the-first-line-treatment-for-retinal-vein-occlusion-related-macular-edema-in-a-real-life-scenario
#15
Mert Simsek, Mehmet Citirik, Serdar Ozates, Dilara Ozkoyuncu
Purpose: This study evaluated the effect of intravitreal dexamethasone implant (IDI; Ozurdex) injection for treating macular edema in patients with branch retinal vein occlusion (BRVO) or central retinal vein occlusion (CRVO). Methods: This prospective study included 40 eyes of 40 patients with nonischemic BRVO and 31 eyes of 31 patients with nonischemic CRVO who received IDI injection as the first-line treatment for macular edema. The best-corrected visual acuity (BCVA) value before and after the treatment; intraocular pressure; optic coherence tomography findings; and all ocular examination findings, including central foveal thickness (CFT) measurement and fluorescein angiography findings, were evaluated for each patient...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785613/neuroinfections-caused-by-fungi
#16
REVIEW
Katarzyna Góralska, Joanna Blaszkowska, Magdalena Dzikowiec
BACKGROUND: Fungal infections of the central nervous system (FIs-CNS) have become significantly more common over the past 2 decades. Invasion of the CNS largely depends on the immune status of the host and the virulence of the fungal strain. Infections with fungi cause a significant morbidity in immunocompromised hosts, and the involvement of the CNS may lead to fatal consequences. METHODS: One hundred and thirty-five articles on fungal neuroinfection in PubMed, Google Scholar, and Cochrane databases were selected for review using the following search words: "fungi and CNS mycoses", CNS fungal infections", "fungal brain infections", " fungal cerebritis", fungal meningitis", "diagnostics of fungal infections", and "treatment of CNS fungal infections"...
May 21, 2018: Infection
https://www.readbyqxmd.com/read/29785570/phase-1b-investigation-of-the-mek-inhibitor-binimetinib-in-patients-with-advanced-or-metastatic-biliary-tract-cancer
#17
R S Finn, D H Ahn, M M Javle, B R Tan, C D Weekes, J C Bendell, A Patnaik, G N Khan, D Laheru, R Chavira, J Christy-Bittel, E Barrett, M B Sawyer, Tanios S Bekaii-Saab
Background The MAPK pathway plays a central role in regulation of several cellular processes, and its dysregulation is a hallmark of biliary tract cancer (BTC). Binimetinib (MEK162), a potent, selective oral MEK1/2 inhibitor, was assessed in patients with advanced BTC. Patients and Methods An expansion cohort study in patients who received ≤1 line of therapy for advanced BTC was conducted after determination of the maximum tolerated dose in this Phase 1 trial. Patients received binimetinib 60 mg twice daily...
May 22, 2018: Investigational New Drugs
https://www.readbyqxmd.com/read/29785307/a-review-of-percutaneous-transluminal-angioplasty-in-hemodialysis-fistula
#18
REVIEW
Ioannis Bountouris, Georgia Kritikou, Nikolaos Degermetzoglou, Konstantinos Ioannis Avgerinos
The number of patients in dialysis increases every year. In this review, we will evaluate the role of percutaneous transluminal angioplasty (PTA) according to patency of arteriovenous fistula and grafts. The main indication of PΤΑ is stenosis > 50% or obstruction of the vascular lumen of an arteriovenous fistula and graft. It is usually performed under local anesthesia. The infection rate is as low as the number of complications. Fistula can be used in dialysis in the same day without the need for a central venous catheter...
2018: International Journal of Vascular Medicine
https://www.readbyqxmd.com/read/29785148/the-use-of-augmented-reality-glasses-in-central-line-simulation-see-one-simulate-many-do-one-competently-and-teach-everyone
#19
Cynthia Y Huang, Jonathan B Thomas, Abdullah Alismail, Avi Cohen, Waleed Almutairi, Noha S Daher, Michael H Terry, Laren D Tan
Objective: The aim of this study was to investigate the feasibility of using augmented reality (AR) glasses in central line simulation by novice operators and compare its efficacy to standard central line simulation/teaching. Design: This was a prospective randomized controlled study enrolling 32 novice operators. Subjects were randomized on a 1:1 basis to either simulation using the augmented virtual reality glasses or simulation using conventional instruction...
2018: Advances in Medical Education and Practice
https://www.readbyqxmd.com/read/29784778/extant-fold-switching-proteins-are-widespread
#20
Lauren L Porter, Loren L Looger
A central tenet of biology is that globular proteins have a unique 3D structure under physiological conditions. Recent work has challenged this notion by demonstrating that some proteins switch folds, a process that involves remodeling of secondary structure in response to a few mutations (evolved fold switchers) or cellular stimuli (extant fold switchers). To date, extant fold switchers have been viewed as rare byproducts of evolution, but their frequency has been neither quantified nor estimated. By systematically and exhaustively searching the Protein Data Bank (PDB), we found ∼100 extant fold-switching proteins...
May 21, 2018: Proceedings of the National Academy of Sciences of the United States of America
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