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https://www.readbyqxmd.com/read/29346757/p53-suppresses-metabolic-stress-induced-ferroptosis-in-cancer-cells
#1
Amy Tarangelo, Leslie Magtanong, Kathryn T Bieging-Rolett, Yang Li, Jiangbin Ye, Laura D Attardi, Scott J Dixon
How cancer cells respond to nutrient deprivation remains poorly understood. In certain cancer cells, deprivation of cystine induces a non-apoptotic, iron-dependent form of cell death termed ferroptosis. Recent evidence suggests that ferroptosis sensitivity may be modulated by the stress-responsive transcription factor and canonical tumor suppressor protein p53. Using CRISPR/Cas9 genome editing, small-molecule probes, and high-resolution, time-lapse imaging, we find that stabilization of wild-type p53 delays the onset of ferroptosis in response to cystine deprivation...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29346688/family-medicine-principles-and-practice-7th-edition
#2
Omar Khan
No abstract text is available yet for this article.
January 2018: Family Medicine
https://www.readbyqxmd.com/read/29346497/convergent-and-divergent-validity-of-the-grammaticality-and-utterance-length-instrument
#3
Anny Castilla-Earls, Katrina Fulcher-Rood
Purpose: This feasibility study examines the convergent and divergent validity of the Grammaticality and Utterance Length Instrument (GLi), a tool designed to assess the grammaticality and average utterance length of a child's prerecorded story retell. Method: Three raters used the GLi to rate audio-recorded story retells from 100 English-speaking preschool children. To examine convergent validity, the results of the GLi were correlated with 2 language sample measures, mean length of utterance in words and percentage of grammatical utterances, and with the results of the Structured Photographic Expressive Language Test-Third Edition (Dawson, Stout, & Eyer, 2003)...
January 18, 2018: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/29345746/history-of-genome-editing-in-yeast
#4
Marcin G Fraczek, Samina Naseeb, Daniela Delneri
For thousands of years humans have used the budding yeast Saccharomyces cerevisiae for production of bread and alcohol, however only for the last 30-40 years our understanding of the yeast biology has dramatically increased enabling us to modify its genome. Although S. cerevisiae has been the main focus of many research groups, other non-conventional yeasts have also been studied and exploited for biotechnological purposes. Our experiments and knowledge have evolved from recombination, to high-throughput PCR based transformations, to highly accurate CRISPR methods, in order to alter yeast traits for either research of industrial purposes...
January 18, 2018: Yeast
https://www.readbyqxmd.com/read/29345491/paul-b-pedersen-1936-2017
#5
Walter J Lonner, Juris G Draguns
Presents an obituary for Paul B. Pedersen, who passed away on January 11, 2017, in a Minnetonka, Minnesota hospital. In 1973 Pedersen convened a pathfinding APA (Division 9) symposium in Montreal that resulted in the publication in 1976 of Counseling Across Cultures (Pedersen, Lonner, and Draguns, Eds.). The first book of its kind, it became the "Granddaddy" of all subsequent books in that area. The seventh edition, published in 2016 (with Trimble and Scharron-del Rio, co-eds), benefitted from his steadfast encouragement, but his deteriorating health prevented a more active role...
January 2018: American Psychologist
https://www.readbyqxmd.com/read/29345484/journal-article-reporting-standards-for-quantitative-research-in-psychology-the-apa-publications-and-communications-board-task-force-report
#6
Mark Appelbaum, Harris Cooper, Rex B Kline, Evan Mayo-Wilson, Arthur M Nezu, Stephen M Rao
Following a review of extant reporting standards for scientific publication, and reviewing 10 years of experience since publication of the first set of reporting standards by the American Psychological Association (APA; APA Publications and Communications Board Working Group on Journal Article Reporting Standards, 2008), the APA Working Group on Quantitative Research Reporting Standards recommended some modifications to the original standards. Examples of modifications include division of hypotheses, analyses, and conclusions into 3 groupings (primary, secondary, and exploratory) and some changes to the section on meta-analysis...
January 2018: American Psychologist
https://www.readbyqxmd.com/read/29345409/how-i-investigate-monocytosis
#7
REVIEW
D T Lynch, J Hall, K Foucar
Monocytosis is a common finding that is caused by a wide variety of neoplastic and non-neoplastic conditions. The adequate evaluation of monocytosis involves the integration of laboratory data, morphology, clinical findings, and the judicious use of ancillary studies. We review the literature on monocytosis, including the 2017 revised 4th edition of the World Health Organization classification of hematopoietic neoplasms. We present a review of monocytosis with practical guidelines on how to approach both routine and challenging cases...
January 18, 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29345375/understanding-the-regulation-of-apobec3-expression-current-evidence-and-much-to-learn
#8
REVIEW
Daniela Angela Covino, Maria Cristina Gauzzi, Laura Fantuzzi
The apolipoprotein B mRNA editing enzyme catalytic polypeptide-like 3 (APOBEC3) family of cytosine deaminases plays crucial roles in innate immunity through the ability of restricting viral replication by deamination and mutation of viral genomes. The antiviral function of these proteins was first discovered when research in the field of HIV infection revealed that one member of the family, namely APOBEC3G, restricts HIV infection in T lymphocytes and that the viral infectivity factor protein drives the proteosomal degradation of this enzyme, thus overriding its antiviral function...
December 15, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345014/human-induced-pluripotent-stem-cell-models-of-retinitis-pigmentosa
#9
REVIEW
Ana Artero Castro, Dunja Lukovic, Pavla Jendelova, Slaven Erceg
Hereditary retinal dystrophies, specifically retinitis pigmentosa (RP) are clinically and genetically heterogeneous diseases affecting primarily retinal cells and retinal pigment epithelial (RPE) cells with blindness as a final outcome. Understanding the pathogenicity behind these diseases has been largely precluded by the unavailability of affected tissue from patients, large genetic heterogeneity and animal models that do not faithfully represent some human diseases. A landmark discovery of human induced pluripotent stem cells (hiPSC) permitted the derivation of patient-specific cells...
January 18, 2018: Stem Cells
https://www.readbyqxmd.com/read/29344851/the-evolution-of-crispr-cas9-and-their-cousins-hope-or-hype
#10
REVIEW
Kulbhushan Chaudhary, Anirudha Chattopadhyay, Dharmendra Pratap
Clustered regularly interspaced short palindromic repeats (CRISPR)/Cas9 system allows biologists to edit genomic DNA of any cell in precise and specific way, entailing great potential for crop improvement, drug development and gene therapy. The system involves a nuclease (Cas9) and a designed guide RNA that are involved in wide range of applications such as genome modification, transcriptional modulation, genomic loci marking and RNA tracking. The limitation of the technique, in view of resistance of thymidine-rich genome to Cas9 cleavage, has now been overcome by the use of Cpf1 nuclease...
January 17, 2018: Biotechnology Letters
https://www.readbyqxmd.com/read/29344676/application-of-genome-editing-techniques-in-immunology
#11
REVIEW
Agata O Zych, Malgorzata Bajor, Radoslaw Zagozdzon
The idea of using the effector immune cells to specifically fight cancer has recently evolved into an exciting concept of adoptive cell therapies. Indeed, genetically engineered T cells expressing on their surface recombinant, cancer-targeted receptors have been shown to induce promising response in oncological patients. However, in addition to exogenous expression of such receptors, there is also a need for disruption of certain genes in the immune cells to achieve more potent disease-targeted actions, to produce universal chimeric antigen receptor-based therapies or to study the signaling pathways in detail...
January 17, 2018: Archivum Immunologiae et Therapiae Experimentalis
https://www.readbyqxmd.com/read/29344267/break-breast-cancer-addiction-by-crispr-cas9-genome-editing
#12
REVIEW
Haitao Yang, MariaLynn Jaeger, Averi Walker, Daniel Wei, Katie Leiker, Tao Weitao
Breast cancer is the leading diagnosed cancer for women globally. Evolution of breast cancer in tumorigenesis, metastasis and treatment resistance appears to be driven by the aberrant gene expression and protein degradation encoded by the cancer genomes. The uncontrolled cancer growth relies on these cellular events, thus constituting the cancerous programs and rendering the addiction towards them. These programs are likely the potential anticancer biomarkers for Personalized Medicine of breast cancer. This review intends to delineate the impact of the CRSPR/Cas-mediated genome editing in identification and validation of these anticancer biomarkers...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29344087/determination-of-the-native-features-of-the-exoglucanase-cel48s-from-clostridium-thermocellum
#13
Ya-Jun Liu, Shiyue Liu, Sheng Dong, Renmin Li, Yingang Feng, Qiu Cui
Background: Clostridium thermocellum is considered one of the most efficient natural cellulose degraders because of its cellulosomal system. As the major exoglucanase of cellulosome in C. thermocellum, Cel48S plays key roles and influences the activity and features of cellulosome to a great extent. Thus, it is of great importance to reveal the enzymatic features of Cel48S. However, Cel48S has not been well performed due to difficulties in purifying either recombinant or native Cel48S proteins...
2018: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/29343960/changes-of-serum-uric-acid-and-total-bilirubin-in-elderly-patients-with-major-postischemic-stroke-depression
#14
Jie Gao, Wei Xu, Kun Han, Lu Zhu, Lili Gao, Xiuli Shang
Background: This was a longitudinal study which investigated the relationship between serum uric acid (SUA) and total bilirubin (Tbil) upon admission in elderly stroke patients and the occurrence of postischemic stroke depression (IPSD) at 3, 6, and 9 months of post-stroke follow-up. Subjects and methods: Data were analyzed for 525 acute ischemic stroke patients. Beck Depression Inventory (BDI) scores >17 and Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) were used separately to screen and diagnose IPSD at 3, 6, and 9 months post-stroke...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29343825/a-survey-of-validation-strategies-for-crispr-cas9-editing
#15
Monica F Sentmanat, Samuel T Peters, Colin P Florian, Jon P Connelly, Shondra M Pruett-Miller
The T7 endonuclease 1 (T7E1) mismatch detection assay is a widely used method for evaluating the activity of site-specific nucleases, such as the clustered regularly interspaced short palindromic repeats (CRISPR)-Cas9 system. To determine the accuracy and sensitivity of this assay, we compared the editing estimates derived by the T7E1 assay with that of targeted next-generation sequencing (NGS) in pools of edited mammalian cells. Here, we report that estimates of nuclease activity determined by T7E1 most often do not accurately reflect the activity observed in edited cells...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343743/expression-and-subcellular-localisation-of-aid-and-apobec3-in-adenoid-and-palatine-tonsils
#16
Noriko Seishima, Satoru Kondo, Kousho Wakae, Naohiro Wakisaka, Eiji Kobayashi, Makoto Kano, Makiko Moriyama-Kita, Yosuke Nakanishi, Kazuhira Endo, Tomoko Imoto, Kazuya Ishikawa, Hisashi Sugimoto, Miyako Hatano, Takayoshi Ueno, Miki Koura, Koichi Kitamura, Masamichi Muramatsu, Tomokazu Yoshizaki
Activation-induced cytidine deaminase (AID) and apolipoprotein B mRNA-editing catalytic polypeptide 3 (A3) family are cytidine deaminases that play critical roles in B-cell maturation, antiviral immunity and carcinogenesis. Adenoids and palatine tonsils are secondary lymphoid immune organs, in which AID and A3s are thought to have several physiological or pathological roles. However, the expression of AID or A3s in these organs has not been investigated. Therefore, we investigated the expression profiles of AID and A3s, using 67 samples of adenoids and palatine tonsils from patients, with reverse transcription quantitative polymerase chain reaction (RT-qPCR) and immunohistochemical analyses...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343412/implementing-genome-driven-personalized-cardiology-in-clinical-practice
#17
REVIEW
Ares Pasipoularides
Genomics designates the coordinated investigation of a large number of genes in the context of a biological process or disease. It may be long before we attain comprehensive understanding of the genomics of common complex cardiovascular diseases (CVDs) such as inherited cardiomyopathies, valvular diseases, primary arrhythmogenic conditions, congenital heart syndromes, hypercholesterolemia and atherosclerotic heart disease, hypertensive syndromes, and heart failure with preserved/reduced ejection fraction. Nonetheless, as genomics is evolving rapidly, it is constructive to survey now pertinent concepts and breakthroughs...
January 14, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29343204/automatic-intracranial-segmentation-is-the-clinician-still-needed
#18
Nicolas Meillan, Jean-Emmanuel Bibault, Julien Vautier, Caroline Daveau-Bergerault, Sarah Kreps, Hélène Tournat, Catherine Durdux, Philippe Giraud
INTRODUCTION: Stereotactic hypofractionated radiotherapy is an effective treatment for brain metastases in oligometastatic patients. Its planning is however time-consuming because of the number of organs at risk to be manually segmented. This study evaluates 2 automated segmentation commercial software. METHODS: Patients were scanned in the treatment position. The computed tomography scan was registered on a magnetic resonance imaging and volumes were manually segmented by a clinician...
January 1, 2018: Technology in Cancer Research & Treatment
https://www.readbyqxmd.com/read/29343191/thermophilic-xylanases-from-bench-to-bottle
#19
Abdul Basit, Junquan Liu, Kashif Rahim, Wei Jiang, Huiqiang Lou
Lignocellulosic biomass is a valuable raw material. As technology has evolved, industrial interest in new ways to take advantage of this raw material has grown. Biomass is treated with different microbial cells or enzymes under ideal industrial conditions to produce the desired products. Xylanases are the key enzymes that degrade the xylosidic linkages in the xylan backbone of the biomass, and commercial enzymes are categorized into different glycoside hydrolase families. Thermophilic microorganisms are excellent sources of industrially relevant thermostable enzymes that can withstand the harsh conditions of industrial processing...
January 17, 2018: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/29342436/iris-melanoma-outcomes-based-on-the-american-joint-committee-on-cancer-classification-eighth-edition-in-432-patients
#20
Carol L Shields, Maura Di Nicola, Vladislav P Bekerman, Swathi Kaliki, Carolina Alarcon, Enzo Fulco, Jerry A Shields
PURPOSE: The American Joint Committee on Cancer (AJCC) classification was updated to the eighth edition in January 2017, providing staging for iris melanoma. This study evaluated outcomes of iris melanoma per the AJCC classification, eighth edition. DESIGN: Retrospective case series. PARTICIPANTS: Four hundred thirty-two patients with iris melanoma. METHODS: Management including tumor resection, plaque radiotherapy, or enucleation...
January 13, 2018: Ophthalmology
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