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https://www.readbyqxmd.com/read/28440027/the-crispr-cas9-system-their-delivery-in-vivo-and-ex-vivo-applications-and-clinical-development-by-startups
#1
REVIEW
Minjung Song
The CRISPR/Cas9 gene editing system was originally derived from the prokaryotic adaptive immune system mediated by Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR) and CRISPR-associated proteins (Cas). The system has been successfully applied to genome editing in eukaryotes and has contributed to remarkable advances in the life sciences, in areas ranging from agriculture to genetic disease therapies. For efficient editing and extending the influence of this system, proper delivery of its components is crucial...
April 25, 2017: Biotechnology Progress
https://www.readbyqxmd.com/read/28439558/crispr-cpf1-correction-of-muscular-dystrophy-mutations-in-human-cardiomyocytes-and-mice
#2
Yu Zhang, Chengzu Long, Hui Li, John R McAnally, Kedryn K Baskin, John M Shelton, Rhonda Bassel-Duby, Eric N Olson
Duchenne muscular dystrophy (DMD), caused by mutations in the X-linked dystrophin gene (DMD), is characterized by fatal degeneration of striated muscles. Dilated cardiomyopathy is one of the most common lethal features of the disease. We deployed Cpf1, a unique class 2 CRISPR (clustered regularly interspaced short palindromic repeats) effector, to correct DMD mutations in patient-derived induced pluripotent stem cells (iPSCs) and mdx mice, an animal model of DMD. Cpf1-mediated genomic editing of human iPSCs, either by skipping of an out-of-frame DMD exon or by correcting a nonsense mutation, restored dystrophin expression after differentiation to cardiomyocytes and enhanced contractile function...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28439266/a-novel-regulator-of-activation-induced-cytidine-deaminase-apobecs-in-immunity-and-cancer-schr%C3%A3-dinger-s-catalytic-pocket
#3
REVIEW
Justin J King, Mani Larijani
Activation-induced cytidine deaminase (AID) and its relative APOBEC3 cytidine deaminases boost immune response by mutating immune or viral genes. Because of their genome-mutating activities, AID/APOBECs are also drivers of tumorigenesis. Due to highly charged surfaces, extensive non-specific protein-protein/nucleic acid interactions, formation of polydisperse oligomers, and general insolubility, structure elucidation of these proteins by X-ray crystallography and NMR has been challenging. Hence, almost all available AID/APOBEC structures are of mutated and/or truncated versions...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28438664/simultaneous-measurement-of-aspartate-naa-and-naag-using-hermes-spectral-editing-at-3-tesla
#4
Kimberly L Chan, Muhammad G Saleh, Georg Oeltzschner, Peter B Barker, Richard A E Edden
It has previously been shown that the HERMES method ('Hadamard Encoding and Reconstruction of MEGA-Edited Spectroscopy') can be used to simultaneously edit pairs of metabolites (such as N-acetyl-aspartate (NAA) and N-acetyl aspartyl glutamate (NAAG), or glutathione and GABA). In this study, HERMES is extended for the simultaneous editing of three overlapping signals, and illustrated for the example of NAA, NAAG and Aspartate (Asp). Density-matrix simulations were performed in order to optimize the HERMES sequence...
April 21, 2017: NeuroImage
https://www.readbyqxmd.com/read/28438308/cardiovascular-outcomes-with-surgical-left-atrial-appendage-exclusion-in-patients-with-atrial-fibrillation-who-underwent-valvular-heart-surgery-from-the-national-inpatient-sample-database
#5
Ayman Elbadawi, Odunayo Olorunfemi, Gbolahan O Ogunbayo, Marwan Saad, Islam Y Elgendy, Zainab Arif, Haytham Badran, Deola Saheed, Hamdy M A Ahmed, Mohan Rao
Left atrial appendage (LAA) exclusion is a commonly performed procedure to reduce the embolic events in patients with atrial fibrillation (AF) who underwent cardiac surgeries. Our study aimed to evaluate the in-hospital outcomes of LAA exclusion in patients with AF who underwent valvular heart surgeries. We queried the Nationwide Inpatient Sample Database from 1998 to 2013 for patients with the International Classification of Diseases, Ninth Edition, Clinical Modification, diagnosis codes for AF and underwent any valvular heart surgery...
March 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28438299/can-gene-editing-and-silencing-technologies-play-a-role-in-the-treatment-of-head-and-neck-cancer
#6
REVIEW
Mushfiq H Shaikh, Daniel T W Clarke, Newell W Johnson, Nigel A J McMillan
Conventional treatment strategies have done little to improve the prognosis or disease-free survival in head and neck cancer (HNC) patients. Recent progress in our understanding of molecular aspects of head and neck squamous cell carcinoma (HNSCC) has provided insights into the potential use of molecular targeted therapies in combination with current treatment strategies. Here we review the current understanding of treatment modalities for both HPV-positive and HPV-negative HNSCCs with the potential to use gene editing and silencing technologies therapeutically...
May 2017: Oral Oncology
https://www.readbyqxmd.com/read/28438207/large-scale-validation-of-an-efficient-crispr-cas-based-multi-gene-editing-protocol-in-escherichia-coli
#7
Francesca Zerbini, Ilaria Zanella, Davide Fraccascia, Enrico König, Carmela Irene, Luca F Frattini, Michele Tomasi, Laura Fantappiè, Luisa Ganfini, Elena Caproni, Matteo Parri, Alberto Grandi, Guido Grandi
BACKGROUND: The exploitation of the CRISPR/Cas9 machinery coupled to lambda (λ) recombinase-mediated homologous recombination (recombineering) is becoming the method of choice for genome editing in E. coli. First proposed by Jiang and co-workers, the strategy has been subsequently fine-tuned by several authors who demonstrated, by using few selected loci, that the efficiency of mutagenesis (number of mutant colonies over total number of colonies analyzed) can be extremely high (up to 100%)...
April 24, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28437765/suicidality-associated-with-ptsd-depression-and-disaster-recovery-status-among-adult-survivors-8-years-after-the-2008-wenchuan-earthquake-in-china
#8
Jing Guo, Huan He, Mingqi Fu, Ziqiang Han, Zhiyong Qu, Xiaohua Wang, Liding Guan
It has been eight years since the Wenchuan earthquake. We don't know how the lives of those affected by the disaster may remain blighted by its effects, or how many remain thus affected. The aim of the present study was to examine the relationship of disaster exposure, PTSD, depression and suicidal behaviors, using data from a cross-sectional survey conducted in earthquake-affected areas of China. 1369 participants were recruited from two different sites that were severely affected by the Wenchuan earthquake...
April 12, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28437703/antiviral-treatment-strategies-based-on-gene-silencing-and-genome-editing
#9
REVIEW
Roger Badia, Ester Ballana, José A Esté, Eva Riveira-Muñoz
The ability of some viruses to establish latently infected chronic reservoirs that escape to immune control becomes a major roadblock that impedes the cure of these infections. Therefore, new alternatives are needed to pursuit the eradication of viral persistent infections. Gene silencing technologies are in constant evolution and provide an outstanding sequence specificity that allows targeting any coding sequence of interest. Here we provide an overview of the development of gene silencing technologies ranging from initially RNA interference to the recently developed CRISPR/Cas9 and their potential as new antiviral strategies focusing on the eradication of HIV...
April 21, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28437526/prominin-1-is-a-novel-regulator-of-autophagy-in-the-human-retinal-pigment-epithelium
#10
Sujoy Bhattacharya, Jinggang Yin, Christina S Winborn, Qiuhua Zhang, Junming Yue, Edward Chaum
Purpose: Prominin-1 (Prom1) is a transmembrane glycoprotein, which is expressed in stem cell lineages, and has recently been implicated in cancer stem cell survival. Mutations in the Prom1 gene have been shown to disrupt photoreceptor disk morphogenesis and cause an autosomal dominant form of Stargardt-like macular dystrophy (STGD4). Despite the apparent structural role of Prom1 in photoreceptors, its role in other cells of the retina is unknown. The purpose of this study is to investigate the role of Prom1 in the highly metabolically active cells of the retinal pigment epithelium (RPE)...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28437520/academic-performance-motor-function-and-behavior-11-years-after-neonatal-caffeine-citrate-therapy-for-apnea-of-prematurity-an-11-year-follow-up-of-the-cap-randomized-clinical-trial
#11
Barbara Schmidt, Robin S Roberts, Peter J Anderson, Elizabeth V Asztalos, Lorrie Costantini, Peter G Davis, Deborah Dewey, Judy D'Ilario, Lex W Doyle, Ruth E Grunau, Diane Moddemann, Harvey Nelson, Arne Ohlsson, Alfonso Solimano, Win Tin
Importance: Caffeine citrate therapy for apnea of prematurity reduces the rates of bronchopulmonary dysplasia, severe retinopathy, and neurodevelopmental disability at 18 months and may improve motor function at 5 years. Objective: To evaluate whether neonatal caffeine therapy is associated with improved functional outcomes 11 years later. Design, Setting, and Participants: A follow-up study was conducted at 14 academic hospitals in Canada, Australia, and the United Kingdom from May 7, 2011, to May 27, 2016, of English- or French-speaking children who had been enrolled in the randomized, placebo-controlled Caffeine for Apnea of Prematurity trial between October 11, 1999, and October 22, 2004...
April 24, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28437057/psychotic-and-bipolar-disorders-behavioral-disorders-in-dementia
#12
Sherri Morgan
Psychosis is one of the most common conditions in later life, with dementia being a main contributing factor. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), now categorizes the various types of dementia as neurocognitive disorders. Alzheimer disease is a common cause of dementia and psychosis. Psychosis also is seen in patients with vascular dementia and dementia with Lewy bodies. Psychosis can be primary, caused by a psychiatric disorder listed in the DSM-5, or secondary, due to a medical or neurologic condition...
April 2017: FP Essentials
https://www.readbyqxmd.com/read/28437056/psychotic-and-bipolar-disorders-schizophrenia
#13
Alaina L Edmunds
Schizophrenia is the most common psychotic illness, typically appearing between the late teenage years and the mid-30s. The first episode of psychosis may be preceded by a prodromal period. Schizophrenia symptoms fall into six common symptom clusters: delusions and hallucinations, disorganization of speech, cognitive dysfunction, negative symptoms, affective symptoms, and motor system abnormalities. The diagnosis is based on criteria in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, including exclusion of other possible medical or psychiatric etiologies of psychosis...
April 2017: FP Essentials
https://www.readbyqxmd.com/read/28436870/a-general-framework-for-edited-video-and-raw-video-summarization
#14
Xuelong Li, Bin Zhao, Xiaoqiang Lu
In this paper, we build a general summarization framework for both of edited video and raw video summarization. Overall, our work can be divided into three folds: 1) Four models are designed to capture the properties of video summaries, i.e., containing important people and objects (importance), representative to the video content (representativeness), no similar key-shots (diversity) and smoothness of the storyline (storyness). Specifically, these models are applicable to both edited videos and raw videos...
April 19, 2017: IEEE Transactions on Image Processing: a Publication of the IEEE Signal Processing Society
https://www.readbyqxmd.com/read/28436809/review-of-caplan-s-stroke-a-clinical-approach-4th-edition-by-louis-r-caplan
#15
Sandra Napier
No abstract text is available yet for this article.
2017: Neurodiagnostic Journal
https://www.readbyqxmd.com/read/28436806/review-of-wyllie-s-treatment-of-epilepsy-5th-edition-edited-by-elaine-wyllie
#16
Petra N Davidson
No abstract text is available yet for this article.
2017: Neurodiagnostic Journal
https://www.readbyqxmd.com/read/28436805/review-of-current-practice-of-clinical-electroencephalography-4th-edition-by-john-s-ebersole-aatif-m-husain-and-douglas-r-nordli
#17
Susan D Agostini
No abstract text is available yet for this article.
2017: Neurodiagnostic Journal
https://www.readbyqxmd.com/read/28435892/dramatic-improvement-of-crispr-cas9-editing-in-candida-albicans-by-increased-single-guide-rna-expression
#18
Henry Ng, Neta Dean
The clustered regularly interspaced short palindromic repeat system with CRISPR-associated protein 9 nuclease (CRISPR/Cas9) has emerged as a versatile tool for genome editing in Candida albicans. Mounting evidence from other model systems suggests that the intracellular levels of single guide RNA (sgRNA) limit the efficiency of Cas9-dependent DNA cleavage. Here, we tested this idea and describe a new means of sgRNA delivery that improves previously described methods by ~10-fold. The efficiency of Cas9/sgRNA-dependent cleavage and repair of a single-copy yeast enhanced monomeric red fluorescent protein (RFP) gene was measured as a function of various parameters that are hypothesized to affect sgRNA accumulation, including transcriptional and posttranscriptional processing...
March 2017: MSphere
https://www.readbyqxmd.com/read/28435878/evolutionary-dynamics-of-crispr-gene-drives
#19
Charleston Noble, Jason Olejarz, Kevin M Esvelt, George M Church, Martin A Nowak
The alteration of wild populations has been discussed as a solution to a number of humanity's most pressing ecological and public health concerns. Enabled by the recent revolution in genome editing, clustered regularly interspaced short palindromic repeats (CRISPR) gene drives-selfish genetic elements that can spread through populations even if they confer no advantage to their host organism-are rapidly emerging as the most promising approach. However, before real-world applications are considered, it is imperative to develop a clear understanding of the outcomes of drive release in nature...
April 2017: Science Advances
https://www.readbyqxmd.com/read/28435813/medical-care-or-disciplinary-discourses-preventive-measures-against-the-black-death-in-late-medieval-paris-a-brief-review
#20
REVIEW
Yong Jin Hong, Sam Hun Park
BACKGROUND: This paper examined the political and social implications of the Compendium de epidemia prescription written by the Masters of the Faculty of Medicine of the University of Paris in the mid-14th century during the Black Death. This study aimed to examine how the effects of power as a discourse owned by medical knowledge are revealed. METHODS: This paper outlines the composition of the contents based on the 1888 edition edited and translated by Émile H...
March 2017: Iranian Journal of Public Health
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