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https://www.readbyqxmd.com/read/28648842/pnrc2-regulates-3-utr-mediated-decay-of-segmentation-clock-associated-transcripts-during-zebrafish-segmentation
#1
Thomas L Gallagher, Kiel T Tietz, Zachary T Morrow, Jasmine M McCammon, Michael L Goldrich, Nicolas L Derr, Sharon L Amacher
Vertebrate segmentation is controlled by the segmentation clock, a molecular oscillator that regulates gene expression and cycles rapidly. The expression of many genes oscillates during segmentation, including hairy/Enhancer of split-related (her or Hes) genes, which encode transcriptional repressors that auto-inhibit their own expression, and deltaC (dlc), which encodes a Notch ligand. We previously identified the tortuga (tor) locus in a zebrafish forward genetic screen for genes involved in cyclic transcript regulation and showed that cyclic transcripts accumulate post-splicing in tor mutants...
June 22, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28645575/prediction-of-drug-induced-immune-mediated-hepatotoxicity-using-hepatocyte-like-cells-derived-from-human-embryonic-stem-cells
#2
Dong Eon Kim, Mi-Jin Jang, Young Ran Kim, Joo-Young Lee, Eun Byul Cho, Eunha Kim, Yeji Kim, Mi Young Kim, Won-Il Jeong, Seyun Kim, Yong-Mahn Han, Seung-Hyo Lee
Drug-induced liver injury (DILI) is a leading cause of liver disease and a key safety factor during drug development. In addition to the initiation events of drug-specific hepatotoxicity, dysregulated immune responses have been proposed as major pathological events of DILI. Thus, there is a need for a reliable cell culture model with which to assess drug-induced immune reactions to predict hepatotoxicity for drug development. To this end, stem cell-derived hepatocytes have shown great potentials. Here we report that hepatocyte-like cells derived from human embryonic stem cells (hES-HLCs) can be used to evaluate drug-induced hepatotoxic immunological events...
June 20, 2017: Toxicology
https://www.readbyqxmd.com/read/28637492/expression-patterns-of-fshd-causing-dux4-and-myogenic-transcription-factors-pax3-and-pax7-are-spatially-distinct-in-differentiating-human-stem-cell-cultures
#3
Premi Haynes, Kelly Kernan, Suk-Lin Zhou, Daniel G Miller
BACKGROUND: Facioscapulohumeral muscular dystrophy (FSHD) is most commonly inherited in an autosomal dominant pattern and caused by the abnormal expression of DUX4 in skeletal muscle. The DUX4 transcription factor has DNA binding domains similar to several paired class homeotic transcription factors, but only myogenic factors PAX3 and PAX7 rescue cell viability when co-expressed with DUX4 in mouse myoblasts. This observation suggests competition for DNA binding sites in satellite cells might limit muscle repair and may be one aspect of DUX4-associated myotoxicity...
June 21, 2017: Skeletal Muscle
https://www.readbyqxmd.com/read/28637014/a-combination-of-valproic-acid-sodium-salt-chir99021-e-616452-tranylcypromine-and-3-deazaneplanocin-a-causes-stem-cell-like-characteristics-in-cancer-cells
#4
Shuang Sha, Yuanfen Zhai, Chengzhao Lin, Heyong Wang, Qing Chang, Shuang Song, Mingqiang Ren, Gentao Liu
Many studies are based on the hypothesis that recurrence and drug resistance in lung carcinoma are due to a subpopulation of cancer stem-like cells (CSLCs) in solid tumors. Therefore it is crucial to screen for and recognize lung CSLCs. In this study, we stimulated non-small cell lung cancer (NSCLC) A549 cells to display stem cell-like characteristics using a combination of five small molecule compounds. The putative A549 stem cells activated an important CSLC marker, CD133 protein, as well multiple CSLC-related genes including ATP-binding cassette transporter G2 (ABCG2), C-X-C chemokine receptor type 4 (CXCR4), NESTIN, and BMI1...
June 7, 2017: Oncotarget
https://www.readbyqxmd.com/read/28619728/activated-notch-signaling-cascade-is-correlated-with-stem-cell-differentiation-toward-absorptive-progenitors-after-massive-small-bowel-resection-in-a-rat
#5
Igor Sukhotnik, Arnold G Coran, Yulia Pollak, Eviatar Kuhnreich, Drora Berkowitz, Amulya K Saxena
Notch signaling is thought to act to drive cell versification in the lining of the small intestine. The purpose of the present study was to evaluate the role of Notch signaling pathway in stem cell differentiationin the late stages of intestinal adaptation after massive small bowel resection in a rat. Male Sprague-Dawley rats were randomly assigned to one of two experimental groups of 8 rats each: Sham rats underwent bowel transection and re-anastomosis, SBS- rats underwent 75% small bowel resection. Rats were sacrificed on day 14...
June 15, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28608143/resource-utilization-among-glaucoma-patients-in-the-uk-treated-with-beta-blocker-and-non-beta-blocker-adjunctive-therapy-a-retrospective-cohort-analysis
#6
Ananth Viswanathan, Claudio Spera, Anmol Mullins, David Covert, Judit Banhazi, Paul McDwyer, Eibhlin Hudson, Alberto Ferreira
INTRODUCTION: Few studies have examined outcomes and potential complications among glaucoma patients who are prescribed topical beta-blockers. This study examined resource usage (number of GP visits and hospitalizations) and diagnoses of respiratory or cardiovascular conditions among glaucoma patients prescribed beta-blockers compared to patients not prescribed beta-blockers. METHODS: A retrospective cohort analysis was conducted using data from the UK Clinical Practice Research Datalink (CPRD) database over the period January 1, 2006 to March 31, 2014...
May 30, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28606903/estimating-the-incidence-and-the-economic-burden-of-third-and-fourth-degree-obstetric-tears-in-the-english-nhs-an-observational-study-using-propensity-score-matching
#7
Martina Orlovic, Alexander William Carter, Joachim Marti, Elias Mossialos
OBJECTIVE: Obstetric care is a high-risk area in healthcare delivery, so it is essential to have up-to-date quantitative evidence in this area to inform policy decisions regarding these services. In light of this, the objective of this study is to investigate the incidence and economic burden of third and fourth-degree lacerations in the English National Health Service (NHS) using recent national data. METHODS: We used coded inpatient data from Hospital Episode Statistics (HES) for the financial years from 2010/2011 to 2013/2014 for all females that gave birth during that period in the English NHS...
June 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28601732/intermittent-compressive-stress-regulates-notch-target-gene-expression-via-transforming-growth-factor-%C3%AE-signaling-in-murine-pre-osteoblast-cell-line
#8
Jeeranan Manokawinchoke, Prasit Pavasant, Thanaphum Osathanon
OBJECTIVE: Different mechanical stimuli regulate behaviors of various cell types, including osteoblasts, osteocytes, and periodontal ligament fibroblasts. Notch signaling participates in the mechanical stress-regulated cell responses. The present study investigated the regulation of Notch target gene and sclerostin (Sost) expression in murine pre-osteoblast cell line (MC3T3-E1) under intermittent compressive stress. METHODS: MC3T3-E1 were subjected to the intermittent compressive force under the computerized controlled machine...
June 1, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28600361/coding-of-barrett-s-oesophagus-with-high-grade-dysplasia-in-national-administrative-databases-a-population-based-cohort-study
#9
Georgina Chadwick, Mira Varagunam, Christian Brand, Stuart A Riley, Nick Maynard, Tom Crosby, Julie Michalowski, David A Cromwell
OBJECTIVES: The International Classification of Diseases 10th Revision (ICD-10) system used in the English hospital administrative database (Hospital Episode Statistics (HES)) does not contain a specific code for oesophageal high-grade dysplasia (HGD). The aim of this paper was to examine how patients with HGD were coded in HES and whether it was done consistently. SETTING: National population-based cohort study of patients with newly diagnosed with HGD in England...
June 9, 2017: BMJ Open
https://www.readbyqxmd.com/read/28594870/spatial-planning-for-a-green-economy-national-level-hydrologic-ecosystem-services-priority-areas-for-gabon
#10
Joshua Howard Goldstein, Heather Tallis, Aaron Cole, Steven Schill, Erik Martin, Michael Heiner, Marie-Claire Paiz, Allison Aldous, Colin Apse, Barry Nickel
Rapidly developing countries contain both the bulk of intact natural areas and biodiversity, and the greatest untapped natural resource stocks, placing them at the forefront of "green" economic development opportunities. However, most lack scientific tools to create development plans that account for biodiversity and ecosystem services, diminishing the real potential to be sustainable. Existing methods focus on biodiversity and carbon priority areas across large geographies (e.g., countries, states/provinces), leaving out essential services associated with water supplies, among others...
2017: PloS One
https://www.readbyqxmd.com/read/28594471/centralisation-of-radical-cystectomies-for-bladder-cancer-in-england-a-decade-on-from-the-improving-outcomes-guidance-the-case-for-super-centralisation
#11
Mehran Afshar, Henry Goodfellow, Francesca Jackson-Spence, Felicity Evison, John Parkin, Richard T Bryan, Helen Parsons, Nicholas D James, Prashant Patel
OBJECTIVE: To analyse the impact of centralisation of radical cystectomy provision for bladder cancer in England, on post-operative mortality, length of stay, complications and re-intervention rate, from implementation of centralisation from 2002, until 2014. In 2002, UK policymakers introduced the Improving Outcomes Guidance (IOG) for urological cancers after a global cancer surgery commission identified substantial shortcomings in provision of care of radical cystectomies. One key recommendation was centralisation of cystectomies to high output centres...
June 8, 2017: BJU International
https://www.readbyqxmd.com/read/28583499/the-effect-of-blocking-notch-signaling-by-%C3%AE-secretase-inhibitor-on-allergic-rhinitis
#12
Le Shi, Yue Ma, Chunquan Zheng, Qingzhao Zhang
OBJECTIVE: This study aimed to investigate the effect of blocking Notch signaling by γ-secretase inhibitor (GSI) on allergic rhinitis. METHOD: GSI, N-[N-(3,5-difluorophenacetyl-L-alanyl)]-S-phenylglycine t-butylester (DAPT) was administered to ovalbumin-induced AR mice models intranasally. We observed symptoms of sneezing and nose rubbing. To detect the inflammatory state, the serum OVA-specific-IgE, IFN-γ, IL-4, and IL-5 were analyzed by ELISA, and Th cell cytokines in nasal mucosa were analyzed by RT-PCR, including T-bet, IFN-γ, GATA-3, IL-4, and IL-5...
July 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28573678/cardiac-involvements-in-hypereosinophilia-associated-syndrome-case-reports-and-a-little-review-of-the-literature
#13
Xuanyi Jin, Chunyan Ma, Shuang Liu, Zhengyu Guan, Yonghuai Wang, Jun Yang
Hypereosinophilia-associated syndrome is a rare group of systemic diseases without certain underlying causes. Hypereosinophilic syndrome (HES) and eosinophilic granulomatosis with polyangiitis (EGPA), formerly known as Churg-Strauss syndrome (CSS), are initial considerations, when underlying causes remains unexplained despite of complete evaluation of hypereosinophilia. In this study, we report two rare cases, one case of HES with Loeffler endocarditis, and the other one of EGPA with restrictive cardiomyopathy mimicking myocardial infarction, to further address differential chief cardiac manifestations between HES and EGPA...
June 1, 2017: Echocardiography
https://www.readbyqxmd.com/read/28573150/notch-hes-signaling-and-mir-9-engage-in-complex-feedback-interactions-controlling-neural-progenitor-cell-proliferation-and-differentiation
#14
REVIEW
Beate Roese-Koerner, Laura Stappert, Oliver Brüstle
Canonical Notch signaling has diverse functions during nervous system development and is critical for neural progenitor self-renewal, timing of differentiation and specification of various cell fates. A key feature of Notch-mediated self-renewal is its fluctuating activity within the neural progenitor cell population and the oscillatory expression pattern of the Notch effector Hes1 and its target genes. A negative feedback loop between Hes1 and neurogenic microRNA miR-9 was found to be part of this oscillatory clock...
2017: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/28570383/validity-of-cardiovascular-disease-event-ascertainment-using-linkage-to-uk-hospital-records
#15
Mika Kivimäki, G David Batty, Archana Singh-Manoux, Annie Britton, Eric J Brunner, Martin J Shipley
BACKGROUND: Use of electronic health records for ascertainment of disease outcomes in large population-based studies holds much promise due to low costs, diminished study participant burden, and reduced selection bias. However, the validity of cardiovascular disease endpoints derived from electronic records is unclear. METHODS: Participants were 7860 study members of the UK Whitehall II cohort study. We compared cardiovascular disease ascertainment using linkage to the National Health Service's Hospital Episode Statistics database records (hereafter, 'HES-ascertainment') against repeated biomedical examinations - our gold-standard ascertainment method ('Whitehall-ascertainment')...
May 25, 2017: Epidemiology
https://www.readbyqxmd.com/read/28553873/does-fluid-resuscitation-with-balanced-solutions-induce-electrolyte-and-metabolic-abnormalities-an-in-vitro-assessment
#16
Łukasz J Krzych, Piotr F Czempik
BACKGROUND: Popular intravenous fluids in clinical use may have impact on electrolyte concentration and metabolic balance and should be considered as powerful pharmacologic agents. There is growing body of evidence that fluid therapy should be more individualized and preferably based on balanced solutions. AIM: We sought to investigate impact of three commonly used balanced fluids on electrolytes and metabolic equilibrium in an in vitro setting. METHODS: Study group comprised 32 healthy male volunteers (no history of any acute/chronic disorder or known metabolic abnormalities), aged 21-35 (29 ± 4) years, weighting 59-103 (81...
May 29, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/28551406/protective-effect-of-hesperidin-and-tiger-nut-against-acrylamide-toxicity-in-female-rats
#17
Soha M Hamdy, Amany M Shabaan, Abdel Karim M Abdel Latif, Ayman M Abdel-Aziz, Alshimaa M Amin
Phytochemicals that have antioxidant effect play important role in protection against several diseases in humans. This study was carried out to evaluate the efficacy of hesperidin and tiger nut against the early changes that may be related to the toxicity of acrylamide in female rats. 72 Sprague Dawley female rats were divided into six groups (12 rat/group): control group (I); hesperidin (HES) treated group (II); tiger nut (TN) treated group (III); Acrylamide (ACR) treated group (IV); HES-ACR treated group (V); and TN-ACR treated group (VI)...
May 24, 2017: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/28544791/the-american-board-of-obesity-medicine-five-year-report
#18
Robert F Kushner, Dana Brittan, John Cleek, Dyan Hes, Wayne English, Scott Kahan, Louis J Aronne
No abstract text is available yet for this article.
June 2017: Obesity
https://www.readbyqxmd.com/read/28543763/7-8-3-trihydroxyflavone-protects-h-r-induced-apoptosis-and-induces-in-vivo-growth-of-human-embryonic-stem-cell-derived-cardiomyocytes
#19
Jiaxiang Li, Cuiping Wang, Bao Zhang Baiyun Tang
BACKGROUND: Cellular therapy of human embryonic stem cell-derived cardiomyocytes (hES-CMs) holds great promise for regenerating infarcted cardiac tissues. Yet, the major challenge remains as little cells survived after grafting. In this study, we examined whether treating hES-CMs with 7, 8, 3'-Trihydroxyflavone (THF) may improve hES-CMs developments both in vitro and in vivo. METHOD: HES-CMs were differentiated in vitro, and treated with 5 μ59M THF for 24 h...
May 20, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28532282/synthesis-of-ph-responsive-n-acetyl-cysteine-modified-starch-derivatives-for-oral-delivery
#20
Kwanghyok Jong, Benzhi Ju, Shufen Zhang
In this study, a novel type of pH-responsive polymer PyHES-NAC (2-hydroxy-3-(2-propynyloxy) propyl hydroxyethyl starch (PyHES)) - (N-acetyl-cysteine (NAC)) was synthesized. First, PyHES was prepared via hydrophobic modification of hydroxyl groups in hydroxyethyl starch (HES) with propynylglycidyl ether (PGE), and then pH-responsive carboxylic acid group was connected to propynyl group via thiol-yne click reaction with NAC. Aqueous PyHES-NAC solutions exhibited a good transference between hydrophobic (or self-assembly) and hydrophilic static along with the change of pH value and protective properties of drugs under acidic conditions...
May 27, 2017: Journal of Biomaterials Science. Polymer Edition
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