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https://www.readbyqxmd.com/read/28633805/somatic-support-following-cardiac-arrest-for-90%C3%A2-days-leading-to-a-healthy-baby-boy-a-case-report
#1
Sarah Holliday, Barbara Magnuson-Woodward
Due to a lack of published case reports regarding the somatic support of brain dead pregnant patients, each one adds to the limited knowledge that directs care for this patient population. A young woman experienced a cardiac arrest and was subsequently determined to be approximately 20 weeks pregnant following cardio pulmonary resuscitation. Soon after, she was diagnosed as brain dead, but her family chose to keep her supported in hopes of the delivery of a healthy child. She was transferred to our facility, where she was supported after being diagnosed as brain dead for a total of 90 days and delivered a healthy baby boy at almost 32 weeks gestational age...
June 17, 2017: Heart & Lung: the Journal of Critical Care
https://www.readbyqxmd.com/read/28631219/agrobacterium-tumefaciens-mediated-transformation-of-oleaginous-yeast-lipomyces-species
#2
Ziyu Dai, Shuang Deng, David E Culley, Kenneth S Bruno, Jon K Magnuson
Interest in using renewable sources of carbon, especially lignocellulosic biomass, for the production of hydrocarbon fuels and chemicals has fueled interest in exploring various organisms capable of producing hydrocarbon biofuels and chemicals or their precursors. The oleaginous (oil-producing) yeast Lipomyces starkeyi is the subject of active research regarding the production of triacylglycerides as hydrocarbon fuel precursors using a variety of carbohydrate and nutrient sources. The genome of L. starkeyi has been published, which opens the door to production strain improvements through the development and use of the tools of synthetic biology for this oleaginous species...
June 19, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28621456/absorption-distribution-and-excretion-of-four-forms-of-titanium-dioxide-pigment-in-the-rat
#3
Thomas P Farrell, Berna Magnuson
Titanium dioxide (TiO2 ) is a white color additive that has a long history of global approval and use in food. There is, however, considerable confusion regarding the applicability of the biological effects of novel, engineered, nano-sized forms of TiO2 developed for nonpigmentary applications to the safety of oral exposure to food grade TiO2 pigment. The objective of this study was to assess the absorption, distribution, and routes of excretion in rats after oral exposure to food grade TiO2 . Four different grades of TiO2 (200 ppm) or control (0 ppm) diets were fed to rats for 7 consecutive days, followed by control diet only for 1, 24, or 72 h...
June 16, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28606761/inhibition-of-bromodomain-containing-protein-9-for-the-prevention-of-epigenetically-defined-drug-resistance
#4
Terry D Crawford, Steffan Vartanian, Alexandre Côté, Steve Bellon, Martin Duplessis, E Megan Flynn, Michael Hewitt, Hon-Ren Huang, James R Kiefer, Jeremy Murray, Christopher G Nasveschuk, Eneida Pardo, F Anthony Romero, Peter Sandy, Yong Tang, Alexander M Taylor, Vickie Tsui, Jian Wang, Shumei Wang, Laura Zawadzke, Brian K Albrecht, Steven R Magnuson, Andrea G Cochran, David Stokoe
Bromodomain-containing protein 9 (BRD9), an epigenetic "reader" of acetylated lysines on post-translationally modified histone proteins, is upregulated in multiple cancer cell lines. To assess the functional role of BRD9 in cancer cell lines, we identified a small-molecule inhibitor of the BRD9 bromodomain. Starting from a pyrrolopyridone lead, we used structure-based drug design to identify a potent and highly selective in vitro tool compound 11, (GNE-375). While this compound showed minimal effects in cell viability or gene expression assays, it showed remarkable potency in preventing the emergence of a drug tolerant population in EGFR mutant PC9 cells treated with EGFR inhibitors...
June 3, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28599602/spinal-cord-injury-causes-systolic-dysfunction-and-cardiomyocyte-atrophy
#5
Jordan W Squair, Kathryn M DeVeau, Kathryn A Harman, Malihe-Sadat Poormasjedi-Meibod, Brian Hayes, Jie Liu, David S K Magnuson, Andrei V Krassioukov, Christopher R West
Individuals with spinal cord injury (SCI) have been shown to exhibit systolic, and to a lesser extent, diastolic cardiac dysfunction. However, previous reports of cardiac dysfunction in this population are confounded by the changing loading conditions after SCI and as such, whether cardiac dysfunction per se is present is still unknown. Therefore, our aim was to establish if load-independent cardiac dysfunction is present after SCI, to understand the functional cardiac response to SCI, and to explore the changes within the cellular milieu of the myocardium...
June 9, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28598347/ingestion-of-swimming-pool-water-by-recreational-swimmers
#6
A P Dufour, T D Behymer, R Cantú, M Magnuson, L J Wymer
The volume of water ingested by swimmers while swimming is of great interest to individuals who develop risk assessments using quantitative microbial risk assessment or epidemiological approaches. We have used chloroisocyanurate disinfected swimming pool waters to determine the amount of water swallowed by swimmers during swimming activity. The chloroisocyanurate, which is in equilibrium with chlorine and cyanuric acid in the pool water, provides a biomarker, cyanuric acid, that once swallowed passes through the body into the urine unchanged...
June 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/28586445/relative-conspicuity-of-gadolinium-based-contrast-agents-in-interventional-pain-procedures
#7
Timothy P Maus, Beth A Schueler, Dixon J Magnuson, Dayne Magnuson
Objective. : To assess the relative radiographic conspicuity of gadolinium-based contrast agents (GBCAs) that may be used in spinal injection procedures when iodine-based contrast agents are contraindicated. Methods. : Eight GBCAs and three iodinated agents of varying iodine concentrations were radiographed under conditions representative of lumbar spinal injections at four kilovoltage peak (kVp) values. Radiographic contrast of each agent was measured as the percent pixel value difference with respect to background...
April 1, 2017: Pain Medicine: the Official Journal of the American Academy of Pain Medicine
https://www.readbyqxmd.com/read/28579393/long-noncoding-rna-moderates-microrna-activity-to-maintain-self-renewal-in-embryonic-stem-cells
#8
Keriayn N Smith, Joshua Starmer, Sarah C Miller, Praveen Sethupathy, Terry Magnuson
Of the thousands of long noncoding RNAs expressed in embryonic stem cells (ESCs), few have known roles and fewer have been functionally implicated in the regulation of self-renewal and pluripotency, or the reprogramming of somatic cells to the pluripotent state. In ESCs, Cyrano is a stably expressed long intergenic noncoding RNA with no previously assigned role. We demonstrate that Cyrano contributes to ESC maintenance, as its depletion results in the loss of hallmarks of self-renewal. Delineation of Cyrano's network through transcriptomics revealed widespread effects on signaling pathways and gene expression networks that contribute to ESC maintenance...
May 31, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/28574172/prevention-of-hip-displacement-in-children-with-cerebral-palsy-a-systematic-review
#9
REVIEW
Stacey D Miller, Maria Juricic, Kim Hesketh, Lynore Mclean, Sonja Magnuson, Sherylin Gasior, Emily Schaeffer, Maureen O'donnell, Kishore Mulpuri
AIM: To conduct a systematic review and evaluate the quality of evidence for interventions to prevent hip displacement in children with cerebral palsy (CP). METHOD: A systematic review was performed using American Academy of Cerebral Palsy and Developmental Medicine (AACPDM) and Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) methodology. Searches were completed in seven electronic databases. Studies were included if participants had CP and the effectiveness of the intervention was reported using a radiological measure...
June 2, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28561034/a-damaged-genome-s-transcriptional-landscape-through-multilayered-expression-profiling-around-in-situ-mapped-dna-double-strand-breaks
#10
Fabio Iannelli, Alessandro Galbiati, Ilaria Capozzo, Quan Nguyen, Brian Magnuson, Flavia Michelini, Giuseppina D'Alessandro, Matteo Cabrini, Marco Roncador, Sofia Francia, Nicola Crosetto, Mats Ljungman, Piero Carninci, Fabrizio d'Adda di Fagagna
Of the many types of DNA damage, DNA double-strand breaks (DSBs) are probably the most deleterious. Mounting evidence points to an intricate relationship between DSBs and transcription. A cell system in which the impact on transcription can be investigated at precisely mapped genomic DSBs is essential to study this relationship. Here in a human cell line, we map genome-wide and at high resolution the DSBs induced by a restriction enzyme, and we characterize their impact on gene expression by four independent approaches by monitoring steady-state RNA levels, rates of RNA synthesis, transcription initiation and RNA polymerase II elongation...
May 31, 2017: Nature Communications
https://www.readbyqxmd.com/read/28560527/outcomes-of-partnered-individuals-undergoing-bariatric-surgery-together-a-single-institution-case-series
#11
Ambar Mehta, Susan Hutfless, Alex B Blair, Megan Karcher, Stephanie Nasatka, Michael Schweitzer, Thomas Magnuson, Hien Tan Nguyen
There exists marked variation in weight loss among the 200,000 annual bariatric patients, and many of these patients struggle with weight regain. Several studies have suggested that positive social support may significantly impact bariatric surgery outcomes, leading to more excess weight loss and maintenance of this weight loss through appropriate lifestyle changes. We sought to understand this by assessing clinical and behavioral outcomes among married couples whereby both spouses underwent bariatric surgery at our institution...
May 30, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28558975/critical-review-of-the-current-literature-on-the-safety-of-sucralose
#12
REVIEW
Bernadene A Magnuson, Ashley Roberts, Earle R Nestmann
Sucralose is a non-caloric high intensity sweetener that is approved globally for use in foods and beverages. This review provides an updated summary of the literature addressing the safety of use of sucralose. Studies reviewed include chemical characterization and stability, toxicokinetics in animals and humans, assessment of genotoxicity, and animal and human feeding studies. Endpoints evaluated include effects on growth, development, reproduction, neurotoxicity, immunotoxicity, carcinogenicity and overall health status...
May 27, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28550109/chronic-%C3%AE-cell-depolarization-impairs-%C3%AE-cell-identity-by-disrupting-a-network-of-ca-2-regulated-genes
#13
Jennifer S Stancill, Jean-Philippe Cartailler, Hannah W Clayton, James T O'Connor, Matthew T Dickerson, Prasanna K Dadi, Anna B Osipovich, David A Jacobson, Mark A Magnuson
We used mice lacking Abcc8, a key component of the β-cell KATP-channel, to analyze the effects of a sustained elevation in the intracellular Ca(2+) concentration ([Ca(2+)]i) on β-cell identity and gene expression. Lineage tracing analysis revealed the conversion of β-cells lacking Abcc8 into PP-cells, but not to α- or δ-cells. RNA-Seq analysis of FACS-purified Abcc8(-/-) β-cells confirmed an increase in Ppy gene expression, and revealed altered expression of over 4,200 genes, many of which are involved in Ca(2+)-signaling, the maintenance of β-cell identity, and cell adhesion...
May 26, 2017: Diabetes
https://www.readbyqxmd.com/read/28506979/impact-of-ezetimibe-on-the-rate-of-cardiovascular-related-hospitalizations-and-associated-costs-among-patients-with-a-recent-acute-coronary-syndrome-results-from-the-improve-it-trial-improved-reduction-of-outcomes-vytorin-efficacy-international-trial
#14
Yashashwi Pokharel, Khaja Chinnakondepalli, Katherine Vilain, Kaijun Wang, Daniel B Mark, Glenn Davies, Michael A Blazing, Robert P Giugliano, Eugene Braunwald, Christopher P Cannon, David J Cohen, Elizabeth A Magnuson
BACKGROUND: Ezetimibe, when added to simvastatin therapy, reduces cardiovascular events after recent acute coronary syndrome. However, the impact of ezetimibe on cardiovascular-related hospitalizations and associated costs is unknown. METHODS AND RESULTS: We used patient-level data from the IMPROVE-IT (Improved Reduction of Outcomes: Vytorin Efficacy International Trial) to examine the impact of simvastatin-ezetimibe versus simvastatin-placebo on cardiovascular-related hospitalizations and related costs (excluding drug costs) over 7 years follow-up...
May 2017: Circulation. Cardiovascular Quality and Outcomes
https://www.readbyqxmd.com/read/28491007/targeting-newly-generated-granule-cells-a-double-edged-sword
#15
COMMENT
Wilson Yu, Esther Krook-Magnuson
No abstract text is available yet for this article.
March 2017: Epilepsy Currents
https://www.readbyqxmd.com/read/28481709/reply-to-a-chalmers-et-al
#16
William J Magnuson, Nataniel H Lester-Coll, James B Yu, Veronica L Chiang
No abstract text is available yet for this article.
May 8, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28481340/widespread-adenine-n6-methylation-of-active-genes-in-fungi
#17
Stephen J Mondo, Richard O Dannebaum, Rita C Kuo, Katherine B Louie, Adam J Bewick, Kurt LaButti, Sajeet Haridas, Alan Kuo, Asaf Salamov, Steven R Ahrendt, Rebecca Lau, Benjamin P Bowen, Anna Lipzen, William Sullivan, Bill B Andreopoulos, Alicia Clum, Erika Lindquist, Christopher Daum, Trent R Northen, Govindarajan Kunde-Ramamoorthy, Robert J Schmitz, Andrii Gryganskyi, David Culley, Jon Magnuson, Timothy Y James, Michelle A O'Malley, Jason E Stajich, Joseph W Spatafora, Axel Visel, Igor V Grigoriev
N6-methyldeoxyadenine (6mA) is a noncanonical DNA base modification present at low levels in plant and animal genomes, but its prevalence and association with genome function in other eukaryotic lineages remains poorly understood. Here we report that abundant 6mA is associated with transcriptionally active genes in early-diverging fungal lineages. Using single-molecule long-read sequencing of 16 diverse fungal genomes, we observed that up to 2.8% of all adenines were methylated in early-diverging fungi, far exceeding levels observed in other eukaryotes and more derived fungi...
June 2017: Nature Genetics
https://www.readbyqxmd.com/read/28472091/patients-with-atrial-fibrillation-and-outcomes-of-cerebral-infarction-in-those-with-treatment-of-warfarin-versus-no-warfarin-with-references-to-cha2ds2-vasc-score-age-and-sex-a-swedish-nationwide-observational-study-with-48-433-patients
#18
Tommy Andersson, Anders Magnuson, Ing-Liss Bryngelsson, Ole Frøbert, Karin M Henriksson, Nils Edvardsson, Dritan Poçi
AIMS: There is controversy in the guidelines as to whether patients with atrial fibrillation and a low risk of stroke should be treated with anticoagulation, especially those with a CHA2DS2-VASc score of 1 point. METHODS: In a retrospective, nationwide cohort study, we used the Swedish National Patient Registry, the National Prescribed Drugs Registry, the Swedish Registry of Education and the Population and Housing Census Registry. 48 433 patients were identified between 1 January 2006 and 31 December 2008 with incident atrial fibrillation who were divided in age categories, sex and a CHA2DS2-VASc score of 0, 1, 2 and ≥3 and they were included in a time-varying analysis of warfarin treatment versus no treatment...
2017: PloS One
https://www.readbyqxmd.com/read/28468607/does-local-infiltration-analgesia-reduce-peri-operative-inflammation-following-total-hip-arthroplasty-a-randomized-double-blind-study
#19
J Kuchálik, A Magnuson, E Tina, A Gupta
BACKGROUND: Postoperative inflammation following total hip arthroplasty (THA) can lead to delayed mobilization and return of hip function. Our primary aim was to assess whether local infiltration analgesia (LIA) during surgery can prevent postoperative inflammation. METHODS: This is a sub-analysis of data from a broader double-blind study where 56 patients received spinal anaesthesia for THA. Additionally, Group FNB (Femoral Nerve Block) received an ultrasound-guided femoral nerve block using 30 mL of ropivacaine 7...
May 3, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28467189/prevalence-of-escherichia-coli-o157-shedding-in-preweaned-calves-on-colorado-dairies
#20
Chloe Stenkamp-Strahm, Craig McConnel, Doreene R Hyatt, Roberta Magnuson, Paige Tenneson, Lyndsey Linke
To gain insight into a potential age-related predisposition for Escherichia coli pathogen shedding on dairies, this pilot study measured the prevalence of E. coli O157 (ECO157) in the feces of preweaned dairy calves. An aim of this study was to link these outcomes with the concurrent environmental presence of ECO157 and dam ECO157 shedding elucidated in a parallel study. Recto-anal mucosal swabs and a subset of fecal grab samples were collected from calves (2 to 8 weeks of age; n = 399) monthly between December 2013 and June 2014 on three dairies in northern Colorado...
June 2017: Journal of Food Protection
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