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https://www.readbyqxmd.com/read/28927189/scientific-societal-and-economic-consequences-of-releasing-interim-data-from-clinical-trials
#1
Abhinav Sharma, Robert H Bigelow, Michael J Pencina
No abstract text is available yet for this article.
January 1, 2017: European Heart Journal. Quality of Care & Clinical Outcomes
https://www.readbyqxmd.com/read/28927162/myelodysplastic-syndrome-unclassifiable-mds-u-with-1-blasts-is-a-distinct-subgroup-of-mds-u-with-a-poor-prognosis
#2
Elizabeth Margolskee, Robert P Hasserjian, Duane Hassane, Wayne Tam, Susan Mathew, Chi Young Ok, Sa A Wang, Jean Oak, Daniel A Arber, Attilio Orazi
Objectives: Three situations qualify as myelodysplastic syndrome, unclassifiable (MDS-U): (1) refractory cytopenia with dysplasia and 1% blasts in peripheral blood (BL), (2) pancytopenia with unilineage dysplasia (Pan), and (3) persistent cytopenia, less than 5% bone marrow blasts, and less than 10% dysplastic cells and presence of MDS-defining cytogenetic abnormalities (CG). We compared the clinicopathologic features and mutational profiles for these three groups. Methods: MDS-U cases were reviewed at four major academic institutions...
July 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28926954/evidence-for-complex-formation-of-the-bacillus-cereus-haemolysin-bl-components-in-solution
#3
Franziska Tausch, Richard Dietrich, Kristina Schauer, Robert Janowski, Dierk Niessing, Erwin Märtlbauer, Nadja Jessberger
Haemolysin BL is an important virulence factor regarding the diarrheal type of food poisoning caused by Bacillus cereus. However, the pathogenic importance of this three-component enterotoxin is difficult to access, as nearly all natural B. cereus culture supernatants additionally contain the highly cytotoxic Nhe, the second three-component toxin involved in the aetiology of B. cereus-induced food-borne diseases. To better address the toxic properties of the Hbl complex, a system for overexpression and purification of functional, cytotoxic, recombinant (r)Hbl components L₂, L₁ and B from E...
September 16, 2017: Toxins
https://www.readbyqxmd.com/read/28926932/comparison-of-two-components-of-propolis-caffeic-acid-ca-and-caffeic-acid-phenethyl-ester-cape-induce-apoptosis-and-cell-cycle-arrest-of-breast-cancer-cells-mda-mb-231
#4
Agata Kabała-Dzik, Anna Rzepecka-Stojko, Robert Kubina, Żaneta Jastrzębska-Stojko, Rafał Stojko, Robert Dariusz Wojtyczka, Jerzy Stojko
Studies show that caffeic acid (CA) and caffeic acid phenethyl ester (CAPE) are compounds with potent chemopreventive effects. Breast cancer is a common form of aggressive cancer among women worldwide. This study shows a comparison of CA and CAPE activity on triple-negative human caucasian breast adenocarcinoma line cells (MDA-MB-231). MDA-MB-231 cells were treated by CA and CAPE with doses of from 10 to 100 µM, for periods of 24 h and 48 h. Cytotoxicity MTT tests, apoptosis by Annexin V, and cell cycle with Dead Cell Assays were performed...
September 15, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28926813/risk-assessment-to-groundwater-of-pit-latrine-rural-sanitation-policy-in-developing-country-settings
#5
Jan O Back, Michael O Rivett, Laura B Hinz, Nyree Mackay, Gift J Wanangwa, Owen L Phiri, Chrispine Emmanuel Songola, Mavuto A S Thomas, Steve Kumwenda, Muthi Nhlema, Alexandra V M Miller, Robert M Kalin
Parallel global rise in pit-latrine sanitation and groundwater-supply provision is of concern due to the frequent spatial proximity of these activities. Study of such an area in Malawi has allowed understanding of risks posed to groundwater from the recent implementation of a typical developing-country pit-latrine sanitation policy to be gained. This has assisted the development of a risk-assessment framework approach pragmatic to regulatory-practitioner management of this issue. The framework involves water-supply and pit-latrine mapping, monitoring of key groundwater contamination indicators and surveys of possible environmental site-condition factors and culminates in an integrated statistical evaluation of these datasets to identify the significant factors controlling risks posed...
September 16, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28926735/ketamine-metabolites-with-antidepressant-effects-fast-economical-and-eco-friendly-enantioselective-separation-based-on-supercritical-fluid-chromatography-sfc-and-single-quadrupole-ms-detection
#6
Georg M Fassauer, Robert Hofstetter, Mahmoud Hasan, Stefan Oswald, Christina Modeß, Werner Siegmund, Andreas Link
Increasing evidence accumulates that metabolites of the dissociative anesthetic ketamine contribute considerably to the biological effects of this drug and could be developed as next generation antidepressants, especially for acute treatment of patients with therapy-refractory major depression. Analytical methods for the simultaneous determination of the plethora of hydroxylated, dehydrogenated and/or demethylated compounds formed after administration of ketamine hydrochloride are a prerequisite for future clinical investigations and a deeper understanding of the individual role of the isomers of these metabolites...
September 8, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28926686/hepatology-highlights
#7
Nicholas Russo, Robert S Brown, Robert E Schwartz, Russell Rosenblatt, Shirley Cohen-Mekelburg, Monica Saumoy, Clara Tow, Yecheskel Schneider, Vikas Gupta
No abstract text is available yet for this article.
October 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28926674/prior-mental-disorders-and-lifetime-suicidal-behaviors-among-us-army-soldiers-in-the-army-study-to-assess-risk-and-resilience-in-servicemembers-army-starrs
#8
Alexander J Millner, Robert J Ursano, Irving Hwang, Andrew J King, James A Naifeh, Nancy A Sampson, Alan M Zaslavsky, Murray B Stein, Ronald C Kessler, Matthew K Nock
We report on associations of retrospectively reported temporally prior mental disorders and Army career characteristics with subsequent first onset of suicidal behaviors in a large, representative sample of US Army soldiers who participated in the Consolidated All-Army Survey of the Army Study to Assess Risk and Resilience in Servicemembers (N = 29,982). Results reveal that among men and women, all self-reported lifetime disorders measured (some assessed with screening scales) are associated with subsequent onset of suicide ideation...
September 19, 2017: Suicide & Life-threatening Behavior
https://www.readbyqxmd.com/read/28926607/the-novel-mineralocorticoid-receptor-antagonist-finerenone-attenuates-neointima-formation-after-vascular-injury
#9
Jochen Dutzmann, Robert-Jonathan Musmann, Marco Haertlé, Jan-Marcus Daniel, Kristina Sonnenschein, Andreas Schäfer, Peter Kolkhof, Johann Bauersachs, Daniel G Sedding
BACKGROUND: The novel nonsteroidal mineralocorticoid receptor (MR) antagonist finerenone holds promise to be safe and efficient in the treatment of patients with heart failure and/or chronic kidney disease. However, its effects on vascular function remain elusive. PURPOSE: The aim of this study was to determine the functional effect of selective MR antagonism by finerenone in vascular cells in vitro and the effect on vascular remodeling following acute vascular injury in vivo...
2017: PloS One
https://www.readbyqxmd.com/read/28926587/functional-characterization-of-zebrafish-orthologs-of-the-human-beta-3-glucosyltransferase-b3glct-gene-mutated-in-peters-plus-syndrome
#10
Eric Weh, Hideyuki Takeuchi, Sanaa Muheisen, Robert S Haltiwanger, Elena V Semina
Peters Plus Syndrome (PPS) is a rare autosomal recessive disease characterized by ocular defects, short stature, brachydactyly, characteristic facial features, developmental delay and other highly variable systemic defects. Classic PPS is caused by loss-of-function mutations in the B3GLCT gene encoding for a β3-glucosyltransferase that catalyzes the attachment of glucose via a β1-3 glycosidic linkage to O-linked fucose on thrombospondin type 1 repeats (TSRs). B3GLCT was shown to participate in a non-canonical ER quality control mechanism; however, the exact molecular processes affected in PPS are not well understood...
2017: PloS One
https://www.readbyqxmd.com/read/28926517/organ-transplantation-in-the-czech-republic
#11
Ondrej Viklicky, Jiri Fronek, Pavel Trunecka, Jan Pirk, Robert Lischke
No abstract text is available yet for this article.
October 2017: Transplantation
https://www.readbyqxmd.com/read/28926489/high-levels-of-morbidity-and-mortality-among-pediatric-hematopoietic-cell-transplant-recipients-with-severe-sepsis-insights-from-the-sepsis-prevalence-outcomes-and-therapies-international-point-prevalence-study
#12
Robert B Lindell, Shira J Gertz, Courtney M Rowan, Jennifer McArthur, Florian Beske, Adrian Plunkett, Scott L Weiss, Neal J Thomas, Vinay M Nadkarni, Julie C Fitzgerald
OBJECTIVES: Pediatric severe sepsis is a major cause of morbidity and mortality worldwide, and hematopoietic cell transplant patients represent a high-risk population. We assessed the epidemiology of severe sepsis in hematopoietic cell transplant patients, describing patient outcomes compared with children with no history of hematopoietic cell transplant. DESIGN: Secondary analysis of the Sepsis PRevalence, OUtcomes, and Therapies point prevalence study, comparing demographics, sepsis etiology, illness severity, organ dysfunction, and sepsis-related treatments in patients with and without hematopoietic cell transplant...
September 16, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28926488/potential-acceptability-of-a-pediatric-ventilator-management-computer-protocol
#13
Katherine A Sward, Christopher J L Newth, Robinder G Khemani, Kent Page, Kathleen L Meert, Joseph A Carcillo, Thomas P Shanley, Frank W Moler, Murray M Pollack, Heidi J Dalton, David L Wessel, John T Berger, Robert A Berg, Rick E Harrison, Allan Doctor, J Michael Dean, Richard Holobkov, Tammara L Jenkins, Carol E Nicholson
OBJECTIVES: To examine issues regarding the granularity (size/scale) and potential acceptability of recommendations in a ventilator management protocol for children with pediatric acute respiratory distress syndrome. DESIGN: Survey/questionnaire. SETTING: The eight PICUs in the Collaborative Pediatric Critical Care Research Network. PARTICIPANTS: One hundred twenty-two physicians (attendings and fellows). INTERVENTIONS: None...
September 16, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28926440/epidural-labor-analgesia-fentanyl-dose-and-breastfeeding-success-a-randomized-clinical-trial
#14
Amy I Lee, Robert J McCarthy, Paloma Toledo, Mary Jane Jones, Nancy White, Cynthia A Wong
BACKGROUND: Breastfeeding is an important public health concern. High cumulative doses of epidural fentanyl administered for labor analgesia have been reported to be associated with early termination of breastfeeding. We tested the hypothesis that breastfeeding success is adversely influenced by the cumulative epidural fentanyl dose administered for labor analgesia. METHODS: The study was a randomized, double-blind, controlled trial of parous women at greater than 38 weeks gestation who planned to breastfeed, had successfully breastfed a prior infant, and who received neuraxial labor analgesia...
October 2017: Anesthesiology
https://www.readbyqxmd.com/read/28926371/residential-agricultural-pesticide-exposures-and-risks-of-spontaneous-preterm-birth
#15
Gary M Shaw, Wei Yang, Eric M Roberts, Susan E Kegley, David K Stevenson, Suzan L Carmichael, Paul B English
BACKGROUND: Pesticides exposures are aspects of the human exposome that have not been sufficiently studied for their contribution to risk for preterm birth. We investigated risks of spontaneous preterm birth from potential residential exposures to 543 individual chemicals and 69 physicochemical groupings that were applied in the San Joaquin Valley of California during the study period, 1998-2011. METHODS: The study population was derived from birth certificate data linked with Office of Statewide Health Planning and Development maternal and infant hospital discharge data...
September 18, 2017: Epidemiology
https://www.readbyqxmd.com/read/28926341/maternal-plasma-lpcat-1-mrna-correlates-with-lamellar-body-count
#16
Robert A Welch, Maurice-Andre Recanati, Kathryn C Welch, Michael K Shaw
Human lysophosphatidylcholine acyltransferase 1 (hLPCAT1) is a protein which helps produce surfactant in the fetal lung. We previously reported that levels of cell-free fetal mRNA for hLPCAT1 in amniotic fluid are correlated with lamellar body count (LBC) (r2=0.93). This short communication demonstrates that fetal hLPCAT1 mRNA is also present in maternal blood. Its quantity also correlates with amniotic fluid LBC (r2=0.81). Research in maternal plasma hLPCAT1 may assist in understanding fetal and placental maturational processes...
September 19, 2017: Journal of Perinatal Medicine
https://www.readbyqxmd.com/read/28926338/melk-is-not-necessary-for-the-proliferation-of-basal-like-breast-cancer-cells
#17
Hai-Tsang Huang, Hyuk-Soo Seo, Tinghu Zhang, Yubao Wang, Baishan Jiang, Qing Li, Dennis L Buckley, Behnam Nabet, Justin M Roberts, Joshiawa Paulk, Shiva Dastjerdi, Georg E Winter, Hilary McLauchlan, Jennifer Moran, James E Bradner, Michael J Eck, Sirano Dhe-Paganon, Jean J Zhao, Nathanael S Gray
Thorough preclinical target validation is essential for the success of drug discovery efforts. In this study, we combined chemical and genetic perturbants, including the development of a novel selective maternal embryonic leucine zipper kinase (MELK) inhibitor HTH-01-091, CRISPR/Cas9-mediated MELK knockout, a novel chemical-induced protein degradation strategy, RNA interference and CRISPR interference to validate MELK as a therapeutic target in basal-like breast cancers (BBC). In common culture conditions, we found that small molecule inhibition, genetic deletion, or acute depletion of MELK did not significantly affect cellular growth...
September 19, 2017: ELife
https://www.readbyqxmd.com/read/28926296/randomised-controlled-trial-of-urokinase-versus-placebo-for-non-draining-malignant-pleural-effusion
#18
Eleanor K Mishra, Amelia O Clive, Genevieve H Wills, Helen E Davies, Andrew E Stanton, Mohamed Al-Aloul, Alan Hart-Thomas, Justin Pepperell, Matthew Evison, Tarek Saba, Richard Neil Harrison, Anur Guhan, Matthew E Callister, Ramamurthy Sathyamurthy, Sunita Rehal, John P Corcoran, Robert Hallifax, Ioannis Psallidas, Nicky Russell, Rachel Shaw, Melissa Dobson, John M Wrightson, Alex West, Y C Gary Lee, Andrew J Nunn, Robert F Miller, Nick A Maskell, Najib M Rahman
RATIONALE: Patients with malignant pleural effusion (MPE) experience breathlessness, which is treated by drainage and pleurodesis. Incomplete drainage results in residual dyspnea and pleurodesis failure. Intrapleural fibrinolytics lyse septations within pleural fluid, improving drainage. OBJECTIVES: To assess the effects of intrapleural urokinase on dyspnea and pleurodesis success in patients with non-draining malignant effusion. METHODS: Prospective double blind randomised trial; patients with non-draining effusion were randomly allocated 1:1 to intrapleural urokinase (100,000 IU three doses 12 hourly) or matched placebo...
September 19, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28926184/experience-dependent-neural-plasticity-learning-and-memory-in-the-era-of%C3%A2-epitranscriptomics
#19
REVIEW
Laura J Leighton, Ke Ke, Esmi L Zajaczkowski, Jordan Edmunds, Robert C Spitale, Timothy W Bredy
In this short review, we highlight recent findings in the emerging field of epitranscriptomic mechanisms and discuss their potential role in neural plasticity, learning and memory. These include the influence of RNA modifications on activity-induced RNA structure states, RNA editing and RNA localization, and how qualitative state changes in RNA increase the functional diversity and information-carrying capacity of RNA molecules. We predict that RNA modifications may be just as important for synaptic plasticity and memory as quantitative changes in transcript and protein abundance, but with the added advantage of not being required to signal back to the nucleus, and therefore better suited to be coordinated with the temporal dynamics of learning...
September 19, 2017: Genes, Brain, and Behavior
https://www.readbyqxmd.com/read/28926171/biliary-reconstructive-techniques-and-associated-anatomic-variants-in-adult-living-donor-liver-transplants-the-a2all-experience
#20
Talia B Baker, Michael A Zimmerman, Nathan P Goodrich, Benjamin Samstein, Elizabeth A Pomfret, James J Pomposelli, Brenda W Gillespie, Carl L Berg, Jean C Emond, Robert M Merion
INTRODUCTION: Living donor liver transplantation (LDLT) is a technically demanding endeavor, requiring command of the complex anatomy of partial liver grafts. We examined the influence of anatomic variation and reconstruction technique on surgical outcomes and graft survival in the nine-center A2ALL Study. METHODS: Data from 272 adult LDLT recipients (2011-2015) included details on anatomic characteristics and types of intraoperative biliary reconstruction. Associations were tested between reconstruction technique and complications, which included first biliary complication ([BC]; leak, stricture, or biloma) and first vascular complication (hepatic artery thrombosis [HAT] or portal vein thrombosis [PVT])...
September 19, 2017: Liver Transplantation
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