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https://www.readbyqxmd.com/read/29150659/ectopic-foxp3-expression-preserves-primitive-features-of-human-hematopoietic-stem-cells-while-impairing-functional-t-cell-differentiation
#1
F R Santoni de Sio, L Passerini, M M Valente, F Russo, L Naldini, M G Roncarolo, R Bacchetta
FOXP3 is the transcription factor ruling regulatory T cell function and maintenance of peripheral immune tolerance, and mutations in its coding gene causes IPEX autoimmune syndrome. FOXP3 is also a cell-cycle inhibitor and onco-suppressor in different cell types. In this work, we investigate the effect of ectopic FOXP3 expression on HSC differentiation and we challenged this approach as a possible HSC-based gene therapy for IPEX. FOXP3-expressing HSC showed reduced proliferation ability and increased maintenance of primitive markers in vitro in both liquid and OP9-ΔL1 co-cultures...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150357/caregiver-burden-of-parents-of-young-children-with-cystic-fibrosis
#2
C Fitzgerald, S George, R Somerville, B Linnane, P Fitzpatrick
BACKGROUND: There is a paucity of research examining the impact of informal caregiving on parents of young children with cystic fibrosis (CF). The aim of this study was to examine caregiver burden and identify risk factors associated with high caregiver burden in mothers and fathers of young children with CF. METHODS: This was a cross-sectional study of parents of young children with CF. A total of 213 families were invited to complete the CarerQoL questionnaire, a validated tool composed of two parts: (i) the CarerQol-7D which describes the care situation in terms of the negative and positive effects of caregiving and (ii) the visual analogue scale (VAS) which measures happiness on a scale from 0 to 10 (0=completely unhappy and 10=completely happy)...
November 14, 2017: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/29150282/artesunate-quercetin-luteolin-dual-drug-nanofacilitated-synergistic-treatment-for-malaria-a-plausible-approach-to-overcome-artemisinin-combination-therapy-resistance
#3
Nethravathi Puttappa, Raman Suresh Kumar, Karthik Yamjala
Malaria is one of the major global health challenge with 300 million new cases annually. The best regimen for treating Plasmodium falciparum induced malaria is based on artemisinin and its derivatives which were prescribed as artemisinin combination therapy (ACT). These are highly effective drugs resulting in rapid clearance of parasites even in severe P. falciparum induced malaria patients. However, from the past few years parasites resistant to ACT's have begun to emerge in various parts of the world such as Cambodia and Greater Mekong Subregion...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150271/xenohormesis-in-early-life-new-avenues-of-research-to-explore-anti-aging-strategies-through-the-maternal-diet
#4
Philippe de Medina
Aging is a progressive internal physiological deterioration of the organism, leading to the occurrence of age-related lethal diseases. It has become a major societal challenge to understand the processes that drive aging and to develop rational pharmacological agents and dietary approaches to fight against age-related deterioration and diseases. Interestingly, several lines of evidence highlight an influence of the developmental period on the risk of age-related diseases later in life. This field is known as the developmental origins of health and disease...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150246/development-of-the-autosomal-dominant-polycystic-kidney-disease-impact-scale-a-new-health-related-quality-of-life-instrument
#5
Dorothee Oberdhan, Jason C Cole, Holly B Krasa, Rebecca Cheng, Frank S Czerwiec, Ron D Hays, Arlene B Chapman, Ronald D Perrone
BACKGROUND: The impact of autosomal dominant polycystic kidney disease (ADPKD) on health-related quality of life (HRQoL) is not well understood due to a lack of instruments specific to the condition. STUDY DESIGN: Content for a new self-administered patient-reported outcome (PRO) questionnaire to assess ADPKD-related HRQoL was developed through clinical expert and patient focus group discussions. The new PRO instrument was administered to study patients with ADPKD to evaluate its reliability and validity...
November 14, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29150002/gene-editing-and-crispr-therapeutics-strategies-taught-by-cell-and-gene-therapy
#6
Juan C Ramirez
A few years ago, we assisted in the demonstration for the first time of the revolutionary idea of a type of adaptive-immune system in the bacteria kingdom. This system, named CRISPR, and variants engineered in the lab, have been demonstrated as functional with extremely high frequency and fidelity in almost all eukaryotic cells studied to date. The capabilities of this RNA-guided nuclease have added to the interest that was announced with the advent of previous technologies for genome editing tools, such as ZFN and TALEN...
2017: Progress in Molecular Biology and Translational Science
https://www.readbyqxmd.com/read/29149908/exosomal-micrornas-as-potential-circulating-biomarkers-in-gastrointestinal-tract-cancers-a-systematic-review-protocol
#7
Elmira Gheytanchi, Zahra Madjd, Leila Janani, Arezoo Rasti, Roya Ghods, Fatemeh Atyabi, Mohammad Hossein Asadi Lari, Sadegh Babashah
BACKGROUND: Metastasis is the most frequent type of recurrence in gastrointestinal (GI) cancers, and there is an emerging potential for new diagnostic and therapeutic approaches, especially in the cases of metastatic GI carcinomas. The expression profiles of circulating exosomal microRNAs are of particular interest as novel non-invasive diagnostic and prognostic biomarkers for improved detection of GI cancers in body fluids, especially in the serum of patients with recurrent cancers. The aim of this study is to systematically review primary studies and identify the miRNA profiles of serum exosomes of GI cancers...
November 17, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/29149813/structural-analysis-of-cd59-of-chinese-tree-shrew-a-new-reference-molecule-for-human-immune-system-specific-cd59-drug-discovery
#8
Subhamay Panda, Leena Kumari, Santamay Panda
BACKGROUND: Chinese tree shrews (Tupaia belangeri chinensis) bear several characteristics that are considered to be very crucial for utilizing in animal experimental models in biomedical research. Subsequent to the identification of key aspects and signaling pathways in nervous and immune systems, it is revealed that tree shrews acquires shared common as well as unique characteristics, and hence offers a genetic basis for employing this animal as a prospective model for biomedical research...
November 17, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/29149753/identifying-relapse-prevention-elements-during-psychological-treatment-of-depression-development-of-an-observer-based-rating-instrument
#9
Katja Machmutow, Martin Grosse Holtforth, Tobias Krieger, Birgit Watzke
BACKGROUND: Although observer-rated instruments assessing therapist's adherence to relapse-preventive treatments are available, they do not adequately cover specific relapse-preventive elements that focus on implementation of strategies after terminating treatment. This study describes the development of the KERI-D (Kodierbogen zur Erfassung Rückfallprophylaktischer Interventionen bei Depression/Coding System to Assess Interventions of Relapse Prevention in Depression). The KERI-D is a new observer-based rating tool for acute or continuation/maintenance-phase sessions and assesses relapse-prevention elements including implementation into patient's daily routines...
November 6, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29149751/massive-arrival-of-desalinated-seawater-in-a-regional-urban-water-cycle-a-multi-isotope-study-b-s-o-h
#10
W Kloppmann, Ido Negev, Joseph Guttman, Orly Goren, Ittai Gavrieli, Catherine Guerrot, Christine Flehoc, Marie Pettenati, Avihu Burg
"Man-made" or unconventional freshwater, like desalinated seawater or reclaimed effluents, is increasingly introduced into regional water cycles in arid or semi-arid countries. We show that the breakthrough of reverse osmosis-derived freshwater in the largely engineered water cycle of the greater Tel Aviv region (Dan Region) has profoundly changed previous isotope fingerprints. This new component can be traced throughout the system, from the drinking water supply, through sewage, treated effluents, and artificially recharged groundwater at the largest Soil-Aquifer Treatment system in the Middle East (Shafdan) collecting all the Dan region sewage...
November 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/29149684/combining-benford-s-law-and-machine-learning-to-detect-money-laundering-an-actual-spanish-court-case
#11
Elena Badal-Valero, José A Alvarez-Jareño, Jose M Pavía
OBJECTIVES: This paper is based on the analysis of the database of operations from a macro-case on money laundering orchestrated between a core company and a group of its suppliers, 26 of which had already been identified by the police as fraudulent companies. In the face of a well-founded suspicion that more companies have perpetrated criminal acts and in order to make better use of what are very limited police resources, we aim to construct a tool to detect money laundering criminals...
November 11, 2017: Forensic Science International
https://www.readbyqxmd.com/read/29149338/multiplex-respiratory-virus-testing-for-antimicrobial-stewardship-a-prospective-assessment-of-antimicrobial-use-and-clinical-outcomes-among-hospitalized-adults
#12
Makeda Semret, Ian Schiller, Barbara Ann Jardin, Charles Frenette, Vivian G Loo, Jesse Papenburg, Shelly A McNeil, Nandini Dendukuri
Background: Respiratory tract infections are frequent causes of hospitalization and initiation of empirical antimicrobial therapy. Testing for a broad panel of respiratory viruses has been advocated as a useful tool for antibiotic stewardship. We conducted a prospective observational study to assess the impact of rapid viral test results on antimicrobial prescriptions and clinical outcomes among hospitalized adults. Methods: Eight hundred patients admitted with respiratory symptoms were tested by a 12-virus respiratory panel (RVP) during 3 consecutive winters in Montreal, Canada...
November 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29149299/twj-screen-an-isothermal-screening-assay-to-assess-ligand-dna-junction-interactions-in-vitro
#13
Ludivine Guyon, Marc Pirrotta, Katerina Duskova, Anton Granzhan, Marie-Paule Teulade-Fichou, David Monchaud
The quest for chemicals able to operate at selected genomic loci in a spatiotemporally controlled manner is desirable to create manageable DNA damages. Mounting evidence now shows that alternative DNA structures, including G-quadruplexes and branched DNA (or DNA junctions), might hamper proper progression of replication fork, thus triggering DNA damages and genomic instability. Therefore, small molecules that stabilize these DNA structures are currently scrutinized as a promising way to create genomic defects that cannot be dealt with properly by cancer cells...
November 15, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/29149090/computational-methods-for-modeling-aptamers-and-designing-riboswitches
#14
REVIEW
Sha Gong, Yanli Wang, Zhen Wang, Wenbing Zhang
Riboswitches, which are located within certain noncoding RNA region perform functions as genetic "switches", regulating when and where genes are expressed in response to certain ligands. Understanding the numerous functions of riboswitches requires computation models to predict structures and structural changes of the aptamer domains. Although aptamers often form a complex structure, computational approaches, such as RNAComposer and Rosetta, have already been applied to model the tertiary (three-dimensional (3D)) structure for several aptamers...
November 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29148716/rapid-quantification-of-4-4-methylenedianiline-by-surface-enhanced-raman-spectroscopy
#15
Samuel L Kleinman, Mark C Peterman, Merwan Benhabib, Michael T Cheng, James D Hudson, Rachel E Mohler
Methylenedianiline (MDA) is a common industrial chemical with health and product safety concerns. Common analysis methods require many steps including extraction and derivatization ending in GC-MS or HPLC analysis, which minimize its use as an on-line or at-line technique. The procedure can take hours, prohibiting its use as a real-time decision-making tool as well as using valuable resources and laboratory space. The new method presented here has been validated for MDA quantification in industrial grease samples over the concentration range of 1-40 ppm 4,4'-MDA...
November 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29148714/evaluating-the-rate-and-substrate-specificity-of-laboratory-evolved-xna-polymerases
#16
Ali Nikoomanzar, Matthew R Dunn, John C Chaput
Engineered polymerases that can copy genetic information between DNA and xeno-nucleic acids (XNA) hold tremendous value as reagents in future bio-technology applications. However, current XNA poly-merases function with inferior activity relative to their natural counterparts, indicating that current polymerase engineering efforts would benefit from new benchmark-ing assays. Here, we describe a highly parallel, low cost method for measuring the average rate and substrate specificity of XNA polymerases in a standard qPCR instrument...
November 17, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29148520/an-in-vitro-prototype-of-a-porcine-biomimetic-testis-like-cell-culture-system-a-novel-tool-for-the-study-of-reassembled-sertoli-and-leydig-cells
#17
Iva Arato, Giovanni Luca, Francesca Mancuso, Catia Bellucci, Cinzia Lilli, Mario Calvitti, Barbara C Hansen, Domenico Milardi, Giuseppe Grande, Riccardo Calafiore
At present, there is no reliable in vitro assembled prepubertal testis-like biomimetic organ culture system designed to assess the functional effects of human gonadotropins on Sertoli and Leydig cells. Spermatogenesis is regulated by endocrine, paracrine, and juxtacrine factors (testicular cross-talk), mainly orchestrated by gonadotropins such as luteinizing hormone (LH) and follicle-stimulating hormone (FSH) that play a pivotal role by stimulating Leydig and Sertoli cells, respectively. The aim of our study was to set up an in vitro prepubertal porcine bioengineered construct as a new model for experimental studies on reassembled Sertoli and Leydig cells...
November 10, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29147951/satisfaction-with-mental-health-navigation-services-piloting-an-evaluation-with-a-new-scale
#18
Keera N Fishman, Anthony J Levitt, Roula Markoulakis, Staci Weingust
As mental health navigation services continue to be implemented, the need for valid and reliable tools to assess the quality of these services increases. While case managers target individuals with severe mental illness and aim to reduce burden and cost, and increase independence, navigation services target all individuals with a range of mental health and/or substance use issues, with the aim of reducing barriers to treatment and coordinating individualized care. The current study evaluated satisfaction with a navigation service using a new 22-item questionnaire, the Navigation Satisfaction Tool (NAVSAT)...
November 16, 2017: Community Mental Health Journal
https://www.readbyqxmd.com/read/29147931/horses-for-courses-moving-india-towards-universal-health-coverage-through-targeted-policy-design
#19
Dayashankar Maurya, Altaf Virani, S Rajasulochana
The debate on how India's health system should move towards universal health coverage was (meant to be) put to rest by the recent National Health Policy 2017. However, the new policy is silent about tackling bottlenecks mentioned in the said policy proposal. It aims to provide universal access to free primary care by strengthening the public system, and to secondary and tertiary care through strategic purchasing from the private sector, to overcome deficiencies in public provisioning in the short run. Yet, in doing so, it ignores critical factors needed to replicate successful models of public healthcare delivery from certain states that it hopes to emulate...
November 16, 2017: Applied Health Economics and Health Policy
https://www.readbyqxmd.com/read/29147920/dysphagia-in-multiple-sclerosis-evaluation-and-validation-of-the-dymus-questionnaire
#20
REVIEW
Dalal Alali, Kirrie Ballard, Steve Vucic, Hans Bogaardt
OBJECTIVE: The 10-item Dysphagia in Multiple Sclerosis (DYMUS) questionnaire is a self-administered tool used to identify swallowing problems in adults with MS. The questionnaire was not validated against other existing questionnaires to assess its convergent validity. Moreover, its test-retest reliability was not measured previously. Therefore, the purpose of this study was to assess the factor analysis, internal consistency and test-retest reliability of the DYMUS, as well as its convergent validity against an established and validated questionnaire, the EAT-10...
November 17, 2017: Dysphagia
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