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https://www.readbyqxmd.com/read/29353267/bioactive-pyrrole-alkaloids-isolated-from-the-red-sea-marine-sponge-stylissa-carteri
#1
Ashraf N E Hamed, Roland Schmitz, Anja Bergermann, Frank Totzke, Michael Kubbutat, Werner E G Müller, Diaa T A Youssef, Mokhtar M Bishr, Mohamed S Kamel, RuAngelie Edrada-Ebel, Wim Wätjen, Peter Proksch
Fifteen pyrrole alkaloids were isolated from the Red Sea marine sponge Stylissa carteri and investigated for their biological activities. Four of them were dibrominated [(+) dibromophakelline, Z-3-bromohymenialdisine, (±) ageliferin and 3,4-dibromo-1H-pyrrole-2-carbamide], nine compounds were monobrominated [(-) clathramide C, agelongine, (+) manzacidin A, (-) 3-bromomanzacidin D, Z-spongiacidin D, Z-hymenialdisine, 2-debromostevensine, 2-bromoaldisine and 4-bromo-1H-pyrrole-2-carbamide)] and finally, two compounds were non-brominated derivatives viz...
January 20, 2018: Zeitschrift Für Naturforschung. C, A Journal of Biosciences
https://www.readbyqxmd.com/read/29353128/adoption-penetration-and-effectiveness-of-a-secondary-risk-screener-for-intimate-partner-violence-evidence-to-inform-screening-practices-in-integrated-care-settings
#2
Katherine M Iverson, Anneliese E Sorrentino, Scarlett L Bellamy, Alessandra R Grillo, Terri N Haywood, Elina Medvedeva, Christopher B Roberts, Melissa E Dichter
OBJECTIVE: Veterans Health Administration (VHA) has implemented screening for past-year intimate partner violence (IPV) in some healthcare facilities along with secondary screening of risk for severe violence among those screening positive in order to facilitate follow-up care for high-risk patients. We evaluated the adoption, penetration, and effectiveness of secondary screening as a tool to facilitate timely follow-up services. METHODS: Retrospective review of medical records (screening and healthcare use) of 774 women screening positive for past-year IPV (IPV+) at 11 facilities nationwide from April 2014-April 2016...
January 10, 2018: General Hospital Psychiatry
https://www.readbyqxmd.com/read/29352965/establishment-of-a-protocol-for-the-isolation-of-feline-pancreatic-islets
#3
I R Brandão, E Zini, C E Reusch, T A Lutz, M Osto
Diabetes mellitus is a common endocrinopathy in cats that is associated with pancreatic islets lesions. Research on isolated islets contributed to the understanding of the pathophysiology of human diabetes. Therefore, by improving the existing methods of isolation in cats, we aimed at increasing islet yield, purity and viability of feline isolated islets. Islet isolation was accomplished by pancreas perfusion with 80ml of Collagenase type IV through the pancreatic duct at the site of the major papilla. The enzymatic digestion was combined with mechanical disruption and controlled by dithizone staining...
January 15, 2018: Physiology & Behavior
https://www.readbyqxmd.com/read/29352748/use-of-e-learning-in-clinical-clerkships-effects-on-acquisition-of-dermatological-knowledge-and-learning-processes
#4
Frederike Fransen, Herm Martens, Ivo Nagtzaam, Sylvia Heeneman
Objectives: To obtain a deeper understanding of how the e-learning program, Education in Dermatology (ED), affects the acquisition of dermatological knowledge and the underlying learning processes of medical students in their clinical phase. Methods: The study used a mixed method design with a convergent parallel collection of data. Medical students (n=62) from Maastricht University (The Netherlands) were randomized to either a conventional teaching group (control group n=30) or conventional teaching plus the e-learning program (application on smartphone) group (e-learning group n=32)...
January 17, 2018: International Journal of Medical Education
https://www.readbyqxmd.com/read/29352526/ectrims-ean-guideline-on-the-pharmacological-treatment-of-people-with-multiple-sclerosis
#5
X Montalban, R Gold, A J Thompson, S Otero-Romero, M P Amato, D Chandraratna, M Clanet, G Comi, T Derfuss, F Fazekas, H P Hartung, E Havrdova, B Hemmer, L Kappos, R Liblau, C Lubetzki, E Marcus, D H Miller, T Olsson, S Pilling, K Selmaj, A Siva, P S Sorensen, M P Sormani, C Thalheim, H Wiendl, F Zipp
BACKGROUND AND PURPOSE: Multiple sclerosis (MS) is a complex disease of the central nervous system. As new drugs are becoming available, knowledge on diagnosis and treatment must continuously evolve. There is therefore a need for a reference tool compiling current data on benefit and safety, to aid professionals in treatment decisions and use of resources across Europe. The European Committee of Treatment and Research in Multiple Sclerosis (ECTRIMS) and the European Academy of Neurology (EAN) have joined forces to meet this need...
January 19, 2018: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29352494/the-effects-of-late-gestation-nutrient-restriction-of-dams-on-beef-heifer-intake-metabolites-and-hormones-during-an-ad-libitum-feeding-trial
#6
J E Tipton, R E Ricks, C T LeMaster, N M Long
This study's objective was to determine if nutrient restriction during late gestation affected beef heifer feed intake, body weight (BW) gain and endocrine regulation during a 10-week feeding trial. During the last 100 days of gestation, control (CON) dams were fed to increase body condition score (BCS). Whereas, nutrient-restricted dams (NR) and NR dams protein supplemented 3 days/week (NRS) were fed to decrease BCS by 1.2. After parturition, all cow-calf pairs were moved to a common pasture and fed in excess of requirements until weaning...
January 19, 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29352389/detailed-t1-weighted-profiles-from-the-human-cortex-measured-in-vivo-at-3-tesla-mri
#7
Bart Ferguson, Natalia Petridou, Alessio Fracasso, Martijn P van den Heuvel, Rachel M Brouwer, Hilleke E Hulshoff Pol, René S Kahn, René C W Mandl
Studies into cortical thickness in psychiatric diseases based on T1-weighted MRI frequently report on aberrations in the cerebral cortex. Due to limitations in image resolution for studies conducted at conventional MRI field strengths (e.g. 3 Tesla (T)) this information cannot be used to establish which of the cortical layers may be implicated. Here we propose a new analysis method that computes one high-resolution average cortical profile per brain region extracting myeloarchitectural information from T1-weighted MRI scans that are routinely acquired at a conventional field strength...
January 19, 2018: Neuroinformatics
https://www.readbyqxmd.com/read/29352084/detection-of-human-bocavirus-species-2-and-3-in-bivalve-shellfish-in-italy
#8
G La Rosa, G Purpari, A Guercio, S Di Bella, F Gucciardi, Y T R Proroga, M Pisanu, S Della Libera, M Iaconelli, E Suffredini
Human bocavirus (HBoV) has been shown to be a common cause of respiratory infections and gastroenteritis in children. Recently, HBoVs have been detected in sewage and river waters in Italy and worldwide. However, no studies are yet available on their presence in other water environments and in bivalve molluscs.In this study, 316 bivalve shellfish samples collected in three Italian regions over a six-year period (2012-2017) were analyzed by nested PCR and sequencing using broad-range primer pairs targeting the capsid proteins VP1/VP2 of HBoV...
January 19, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29352062/critical-role-of-angiographic-acquisition-modality-and-reconstruction-on-morphometric-and-haemodynamic-analysis-of-intracranial-aneurysms
#9
Alexandra Lauric, James E Hippelheuser, Adel M Malek
BACKGROUND: Subtracted 3-D rotational angiography (3DRA) and cone-beam computed tomography angiography (CBCT-A) are often used in assessing cerebral aneurysm shape and haemodynamic profile. We sought to evaluate the effect of imaging modality, reconstruction parameters, and kernel selection on patient-derived aneurysm morphology and computational fluid dynamic (CFD) analysis to assess its potential contribution to inter-study variability. METHODS: Four patients (five aneurysms) underwent concurrent 3DRA followed by high-resolution CBCT-A...
January 19, 2018: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29352005/differential-expression-of-cd8-t-cell-cytotoxic-effector-molecules-in-blood-and-gastrointestinal-mucosa-in-hiv-1-infection
#10
Brenna E Kiniry, Peter W Hunt, Frederick M Hecht, Ma Somsouk, Steven G Deeks, Barbara L Shacklett
We previously reported that CD8+ T cells in human gastrointestinal mucosa exhibit reduced perforin expression and weak or impaired cytotoxic capacity compared with their counterparts in blood. Nevertheless, these cells degranulate and express cytokines and chemokines in response to cognate Ag. In addition to weak expression of perforin, earlier studies suggested differential regulation of perforin and granzymes (Gzms), with GzmA and B expressed by significantly higher percentages of mucosal CD8+ T cells than perforin...
January 19, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29351670/comparison-of-two-methods-for-determination-of-intestinal-villus-to-crypt-ratios-and-documentation-of-early-age-associated-ratio-changes-in-broiler-chickens
#11
F D Wilson, T S Cummings, T M Barbosa, C J Williams, P D Gerard, E D Peebles
The determination of intestinal villus to crypt ratios (VCR) is a common method utilized to evaluate effects of various diet regimens on gut microanatomy and for the histologic quantification of intestinal responses to disease processes. Two methods for the determination of small intestinal VCR were compared in early age chickens. A standard method for VCR determination based on 10 villus and crypt length measurements in the jejunal region of the small intestine was employed for the calculation of villus to crypt length ratio (VCLR)...
January 17, 2018: Poultry Science
https://www.readbyqxmd.com/read/29351612/a-mutational-signature-associated-with-alcohol-consumption-and-prognostically-significantly-mutated-driver-genes-in-esophageal-squamous-cell-carcinoma
#12
X C Li, M Y Wang, M Yang, H J Dai, B F Zhang, W Wang, X L Chu, X Wang, H Zheng, R F Niu, W Zhang, K X Chen
Background: Esophageal squamous cell carcinoma (ESCC) is often diagnosed at an advanced and incurable stage. Information on driver genes and prognosticators in ESCC remains incomplete. The objective was to elucidate significantly mutated genes (SMGs), mutational signatures, and prognosticators in ESCC. Patients and Methods: Three MutSig algorithms (i.e. MutSigCV, MutSigCL and MutSigFN) and "20/20+" ratio-metric were employed to identify SMGs. Nonnegative matrix factorization was used to decipher mutational signatures...
January 16, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29351393/liver-tissue-metabolically-transformed-by-alcohol-induces-immune-recognition-of-liver-self-proteins-but-not-in-vivo-inflammation
#13
Michael J Duryee, Benjamin M Wiese, Jordan R Bowman, Jared D Vanlandingham, Lynell W Klassen, Geoffrey E Thiele, Carlos D Hunter, Daniel R Anderson, Ted R Mikuls, Geoffrey M Thiele
Precision cut liver slices (PCLSs) provide a novel model for studies in alcoholic liver disease (ALD). This is relevant, as in vivo ethanol exposure does not appear to generate significant liver damage in ethanol fed mice, except in the NIAAA binge model of ALD. Previous studies have shown that the two metabolites of ethanol consumption, malondialdhyde (MDA) and acetaldehyde (AA), combine to form (MAA), which has been correlated with the development and progression of ALD. In this study murine PCLSs were incubated with ethanol and examined for the production of MAA...
December 28, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29351278/analysis-of-the-tonsillar-microbiome-in-young-adults-with-sore-throat-reveals-a-high-relative-abundance-of-fusobacterium-necrophorum-with-low-diversity
#14
T Prescott Atkinson, Robert M Centor, Li Xiao, Fuchenchu Wang, Xiangqin Cui, William Van Der Pol, Casey D Morrow, Amy E Ratliff, Donna M Crabb, Arthur H Totten, Carlos A Estrada, Michael B Faircloth, Ken B Waites
Fusobacterium necrophorum (Fn), a gram-negative anaerobe, is increasingly implicated as an etiologic agent in older adolescents and young adults with sore throat. Inadequately treated Fn pharyngitis may result in suppurative complications such as peritonsillar abscess and Lemierre's syndrome. Data from the literature suggest that the incidence of life-threating complications in these age groups from Fn pharyngitis (Lemierre's syndrome) in the United States exceeds those associated with group A beta-hemolytic streptococcal (GAS) pharyngitis (acute rheumatic fever)...
2018: PloS One
https://www.readbyqxmd.com/read/29351053/patient-variability-seldom-assessed-in-cost-effectiveness-studies
#15
Tara A Lavelle, David M Kent, Christine M Lundquist, Teja Thorat, Joshua T Cohen, John B Wong, Natalia Olchanski, Peter J Neumann
BACKGROUND: Cost-effectiveness analysis (CEA) estimates can vary substantially across patient subgroups when patient characteristics influence preferences, outcome risks, treatment effectiveness, life expectancy, or associated costs. However, no systematic review has reported the frequency of subgroup analysis in CEA, what type of heterogeneity they address, and how often heterogeneity influences whether cost-effectiveness ratios exceed or fall below conventional thresholds. METHODS: We reviewed the CEA literature cataloged in the Tufts Medical Center CEA Registry, a repository describing cost-utility analyses published through 2016...
January 1, 2018: Medical Decision Making: An International Journal of the Society for Medical Decision Making
https://www.readbyqxmd.com/read/29350927/synthesis-and-pharmacological-characterization-of-c4%C3%AE-amide-substituted-2-aminobicyclo-3-1-0-hexane-2-6-dicarboxylates-identification-of-1s-2s-4s-5r-6s-2-amino-4-3-methoxybenzoyl-amino-bicyclo-3-1-0-hexane-2-6-dicarboxylic-acid-ly2794193-a-highly-potent-and
#16
James A Monn, Steven S Henry, Steven M Massey, David K Clawson, Qi Chen, Benjamin A Diseroad, Rajni M Bhardwaj, Shane Atwell, Frances Lu, Jing Wang, Marijane Russell, Beverly A Heinz, Xu-Shan Wang, Joan H Carter, Brian G Getman, Kofi Adragni, Lisa M Broad, Helene E Sanger, Daniel Ursu, John T Catlow, Steven Swanson, Bryan G Johnson, David B Shaw, David L McKinzie, Junliang Hao
Multiple therapeutic opportunities have been suggested for compounds capable of selective activation of metabotropic glutamate 3 (mGlu3) receptors, but small molecule tools are lacking. As part of our ongoing efforts to identify potent, selective and systemically bioavailable agonists for mGlu2 and mGlu3 receptor subtypes, a series of C4β-N-linked variants of (1S,2S,5R,6S)-2-amino-bicyclo[3.1.0]hexane-2,6-dicarboxylic acid 1 (LY354740) were prepared and evaluated for both mGlu2 and mGlu3 receptor binding affinity and functional cellular responses...
January 19, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29350913/environmentally-triggerable-retinoic-acid-inducible-gene-i-agonists-using-synthetic-polymer-overhangs
#17
Christian R Palmer, Max E Jacobson, Olga Fedorova, Anna M Pyle, John T Wilson
Retinoic acid-inducible gene I (RIG-I) is a cytosolic pattern recognition receptor (PRR) that potently activates antiviral innate immunity upon recognition of 5' triphosphorylated double-stranded RNA (pppRNA). Accordingly, RNA ligands of the RIG-I pathway have recently emerged as promising antiviral agents, vaccine adjuvants, and cancer immunotherapeutics. However, RIG-I is expressed constitutively in virtually all cell types, and therefore administration of RIG-I agonists causes risk for systemic inflammation and possible dose-limiting toxicities...
January 19, 2018: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29350840/a-phase-3-trial-of-mometasone-furoate-sinus-implants-for-chronic-sinusitis-with-recurrent-nasal-polyps
#18
Robert C Kern, J Pablo Stolovitzky, Stacey L Silvers, Ameet Singh, Jivianne T Lee, David M Yen, Alfred M C Iloreta, Francis P J Langford, Boris Karanfilov, Keith E Matheny, James W Stambaugh, Anna K Gawlicka
BACKGROUND: Topical intranasal corticosteroid sprays (INCSs) are standard treatment for nasal polyps (NPs), but their efficacy is reduced by poor patient compliance and impaired access of drug to the sinus mucosa. A corticosteroid-eluting sinus implant was designed to address these limitations in patients with recurrent polyposis after sinus surgery by delivering 1350 μg of mometasone furoate (MF) directly to the ethmoid sinus mucosa over approximately 90 days. METHODS: A randomized, sham-controlled, double-blind trial was undertaken in 300 adults with refractory chronic rhinosinusitis with NPs (CRSwNP), who were candidates for repeat surgery...
January 19, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29350691/a-novel-mutation-leu396arg-in-opa1-is-associated-with-a-severe-phenotype-in-a-large-dominant-optic-atrophy-pedigree
#19
M J Schnieders, W Goar, M Griess, B R Roos, T E Scheetz, E M Stone, J H Fingert
No abstract text is available yet for this article.
January 19, 2018: Eye
https://www.readbyqxmd.com/read/29350433/amino-group-of-salicylic-acid-exhibits-enhanced-inhibitory-potential-against-insulin-amyloid-fibrillation-with-protective-aptitude-toward-amyloid-induced-cytotoxicity
#20
Masihuz Zaman, Mohsin Vahid Khan, Syed Mohammad Zakariya, Saima Nusrat, Syed Mustapha Meeran, Parvez Alam, Mohammad Rehan Ajmal, Wahiduzzaman Wahiduzzaman, Yasser E Shahein, Amira M Abouelella, Rizwan Hasan Khan
Protein misfolding and aggregation lead to amyloid generation that in turn may induce cell membrane disruption and leads to cell apoptosis. In an effort to prevent or treat amyloidogenesis, large number of studies has been paying attention on breakthrough of amyloid inhibitors. In the present work, we aim to access the effect of two drugs, that is, acetylsalicylic acid and 5-amino salicylic acid on insulin amyloids by using various biophysical, imaging, cell viability assay, and computational approaches. We established that both drugs reduce the turbidity, light scattering and fluorescence intensity of amyloid indicator dye thioflavin T...
December 11, 2017: Journal of Cellular Biochemistry
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