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https://www.readbyqxmd.com/read/28431046/brg1-interacts-with-sox10-to-establish-the-melanocyte-lineage-and-to-promote-differentiation
#1
Himangi G Marathe, Dawn E Watkins-Chow, Matthias Weider, Alana Hoffmann, Gaurav Mehta, Archit Trivedi, Shweta Aras, Tupa Basuroy, Aanchal Mehrotra, Dorothy C Bennett, Michael Wegner, William J Pavan, Ivana L de la Serna
Mutations in SOX10 cause neurocristopathies which display varying degrees of hypopigmentation. Using a sensitized mutagenesis screen, we identified Smarca4 as a modifier gene that exacerbates the phenotypic severity of Sox10 haplo-insufficient mice. Conditional deletion of Smarca4 in SOX10 expressing cells resulted in reduced numbers of cranial and ventral trunk melanoblasts. To define the requirement for the Smarca4 -encoded BRG1 subunit of the SWI/SNF chromatin remodeling complex, we employed in vitro models of melanocyte differentiation in which induction of melanocyte-specific gene expression is closely linked to chromatin alterations...
April 20, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28429500/electrocardiographic-appearance-of-aortic-stenosis-before-and-after-aortic-valve-replacement
#2
Ivana I Vranic
BACKGROUND: So far, the specific appearance of QRS complex, ST-segment, and T wave was observed in aortic stenosis (AS). S-wave dynamic change in leads V1 -V3 was not reported in AS. METHODS: In a single-center, prospective study, we included a total number of 1.175 patients who underwent surgical aortic valve replacement (AVR). We conducted 3-year gathering of patients with symptomatic and asymptomatic severe AS, and separated them by hemodynamic stability into groups A and B, through EFLV (of more or less than 50%), AVA (of more or less than 0...
April 21, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28428777/lactobacillus-fermentum-postbiotic-induced-autophagy-as-potential-approach-for-treatment-of-acetaminophen-hepatotoxicity
#3
Miroslav Dinić, Jovanka Lukić, Jelena Djokić, Marina Milenković, Ivana Strahinić, Nataša Golić, Jelena Begović
The aim of this study was to investigate the potential of postbiotics originated from Lactobacillus fermentum BGHV110 strain (HV110) to counteract acetaminophen (APAP)-induced hepatotoxicity in HepG2 cells. This strain was selected according to its autophagy inducing potential, based on previous studies reporting protective role of autophagy in APAP caused cellular damage. Cell viability was assessed using MTT and LDH assays, while autophagy was monitored by qPCR analysis of BECN1, Atg5, p62/SQSTM1, and PINK1 mRNA expression and by Western blot analysis of p62/SQSTM1 and lipidated LC3 accumulation...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28427050/expression-of-high-mobility-group-protein-b1-in-cardiac-tissue-of-elderly-patients-with-coronary-artery-disease-with-or-without-inflammatory-rheumatic-disease
#4
Mei Bruton, Ivana Hollan, Julie Xiao, Eva Lindroos, Knut Mikkelsen, Stein E Rynning, Kjell Saatvedt, Sven M Almdahl, Helena E Harris, Ingrid E Lundberg, Cecilia Wick
BACKGROUND: It is known from clinical practice and observational studies that elderly patients with a diagnosis of inflammatory rheumatic diseases (IRD) bear a significantly increased risk for cardiovascular diseases such as coronary artery disease (CAD) and heart failure. The molecular mechanism, however, is still not known. Recently, high mobility group protein B1 (HMGB1), a ubiquitous, highly conserved single polypeptide expressed in all mammal eukaryotic cells, has been identified to mediate myocardial dysfunction in vitro once released from the nuclei of cardiomyocytes...
April 21, 2017: Gerontology
https://www.readbyqxmd.com/read/28427016/synthesis-and-in%C3%A2-vitro-antitumour-activity-of-crassalactone-d-its-stereoisomers-and-novel-cinnamic-ester-derivatives
#5
Ivana Kovačević, Mirjana Popsavin, Goran Benedeković, Jelena Kesić, Vesna Kojić, Dimitar Jakimov, Tatjana Srdić-Rajić, Gordana Bogdanović, Vladimir Divjaković, Velimir Popsavin
Naturally occurring styryl lactone, crassalactone D (1), unnatural 4-epi-crassalactone D (2), and the corresponding 7-epimers (3 and 4) have been synthesized starting from d-glucose. The key step of the synthesis is a new one-pot sequence that commenced with a Z-selective Wittig olefination of suitably functionalized sugar lactols with a stabilized ylide, (methoxycarbonylmethylene)-triphenylphosphorane, in dry methanol, to afford 1 or 3, in the mixtures with the corresponding 4-epimers (2 or 4, respectively)...
April 13, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28425668/pectin-hemicellulose-or-lignin-impact-of-the-biowaste-source-on-the-performance-of-hard-carbons-for-sodium-ion-batteries
#6
Xinwei Dou, Ivana Hasa, Maral Hekmatfar, Thomas Diemant, R Juergen Behm, Daniel Buchholz, Stefano Passerini
Hard carbons are currently the most widely used negative electrode materials in Na-ion batteries. This is due to their promising electrochemical performance with capacities of 200-300 mAh g-1 and stable long-term cycling. However, an abundant and cheap carbon source is necessary in order to comply with the low-cost philosophy of the Na-ion technology. As a matter of fact, many biologic or waste materials have been used to synthesize hard carbons but the impact of the precursors on the final properties of the anode material is not fully understood...
April 20, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28425349/clinical-characteristics-of-unknown-symptom-onset-stroke-patients-with-and-without-diffusion-weighted-imaging-and-fluid-attenuated-inversion-recovery-mismatch
#7
Götz Thomalla, Florent Boutitie, Jochen B Fiebach, Claus Z Simonsen, Salvador Pedraza, Robin Lemmens, Norbert Nighoghossian, Pascal Roy, Keith W Muir, Martin Ebinger, Ian Ford, Bastian Cheng, Ivana Galinovic, Tae-Hee Cho, Josep Puig, Vincent Thijs, Matthias Endres, Jens Fiehler, Christian Gerloff
Background Diffusion-weighted imaging (DWI) and fluid-attenuated inversion recovery (FLAIR) mismatch was suggested to identify stroke patients with unknown time of symptom onset likely to be within the time window for thrombolysis. Aims We aimed to study clinical characteristics associated with DWI-FLAIR mismatch in patients with unknown onset stroke. Methods We analyzed baseline MRI and clinical data from patients with acute ischemic stroke proven by DWI from WAKE-UP, an investigator-initiated, randomized, placebo-controlled trial of MRI-based thrombolysis in stroke patients with unknown time of symptom onset...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28425208/nitrogenase-cofactor-inspiration-for-model-chemistry
#8
Ivana Djurdjevic, Oliver Einsle, Laure Decamps
The cofactor of nitrogenase is the largest and most intricate metal cluster known in nature. Its reactivity, mode of action and even the precise binding site of substrate remain a matter of debate. For decades, synthetic chemists have taken inspiration from the exceptional structural, electronic and catalytic features of the cofactor and have tried to either mimic the unique topology of the entire site, or to extract its functional principles and build them into novel catalysts that achieve the same - or very similar - astounding transformations...
April 20, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28425134/record-broken-a-copper-peroxide-complex-with-enhanced-stability-and-faster-hydroxylation-catalysis
#9
Sonja Herres-Pawlis, Patricia Liebhäuser, Kristina Keisers, Alexander Hoffmann, Thomas Schnappinger, Isabella Sommer, Anne Thoma, Claudia Wilfer, Roland Schoch, Kai Stührenberg, Matthias Bauer, Maximilian Dürr, Ivana Ivanovic-Burmazovic
Tyrosinase model systems pinpoint pathways to translate nature´s synthetic abilities into useful synthetic catalysts. Mostly, they use N-donor ligands which mimic the histidine residues coordinating the two copper centres. Copper complexes with bis(pyrazolyl)methanes with pyridinyl or imidazolyl moieties are already reported as excellent tyrosinase models. Substitution of the pyridinyl donor results now in the new ligand HC(3 tBuPz)2(4 CO2MePy) which stabilises a room-temperature stable -2:2-peroxide dicopper(II) species upon oxygenation...
April 19, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28424361/computed-tomographic-findings-in-subjects-who-died-from-respiratory-disease-in-the-national-lung-screening-trial
#10
Esther Pompe, Pim A de Jong, David A Lynch, Nikolas Lessmann, Ivana Išgum, Bram van Ginneken, Jan-Willem J Lammers, Firdaus A A Mohamed Hoesein
We evaluated the prevalence of significant lung abnormalities on computed tomography (CT) in patients who died from a respiratory illness other than lung cancer in the National Lung Screening Trial (NLST).In this retrospective case-control study, NLST participants in the CT arm who died of respiratory illness other than lung cancer were matched for age, sex, pack-years and smoking status to a surviving control. A chest radiologist and a radiology resident blinded to the outcome independently scored baseline CT scans visually and qualitatively for the presence of emphysema, airway wall thickening and fibrotic lung disease...
April 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28424162/pembrolizumab-in-patients-with-chronic-lymphocytic-leukemia-with-richter-s-transformation-and-relapsed-cll
#11
Wei Ding, Betsy R LaPlant, Timothy G Call, Sameer A Parikh, Jose F Leis, Rong He, Tait D Shanafelt, Sutapa Sinha, Jennifer Le-Rademacher, Andrew L Feldman, Thomas M Habermann, Thomas E Witzig, Gregory A Wiseman, Yi Lin, Erik Asmus, Grzegorz S Nowakowski, Michael J Conte, Deborah A Bowen, Casey N Aitken, Daniel L Van Dyke, Patricia T Greipp, Xin Liu, Xiaosheng Wu, Henan Zhang, Charla R Secreto, Shulan Tian, Esteban Braggio, Linda E Wellik, Ivana Micallef, David S Viswanatha, Huihuang Yan, Asher A Chanan-Khan, Neil E Kay, Haidong Dong, Stephen M Ansell
CLL patients progressed early on ibrutinib often develop Richter's transformation (RT) with short survival about 4 months. Preclinical studies suggest that programmed death 1 (PD-1) pathway is critical to inhibit immune surveillance in CLL. This phase 2 study MC1485 (NCT02332980) was designed to test the efficacy and safety of pembrolizumab, a humanized PD-1-blocking antibody, at a dose of 200 mg every 3 weeks in relapsed and transformed CLL. Twenty-five patients including 16 relapsed CLL and 9 RT (all proven diffuse large cell lymphoma) patients were enrolled and 60% received prior ibrutinib...
April 19, 2017: Blood
https://www.readbyqxmd.com/read/28422502/arrays-of-ag-and-au-nanoparticles-with-terpyridine-and-thiophene-based-ligands-morphology-and-optical-responses
#12
Markéta Prusková, Veronika Sutrová, Miroslav Šlouf, Blanka Vlčková, Jiří Vohlídal, Ivana Šloufová
The assembly of Ag and Au nanoparticles (NPs) into nanoparticulate arrays mediated by terpyridine (tpy), 4'-(2-thienyl)terpyridine (T-tpy), and short α,ω-bis(tpy)oligothiophene ligands has been accomplished at the interface between the Ag or Au NP hydrosol and a solution of the molecular species in dichloromethane. The relationship between the morphology and the optical responses of the arrays has been investigated by advanced methods of TEM (transmission electron microscopy) image analysis and surface plasmon extinction (SPE) spectra...
April 19, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28422288/general-dentists-awareness-of-how-to-cope-with-medical-emergencies-in-paediatric-dental-patients
#13
Ivana Čuković-Bagić, Sandra Hrvatin, Jesenka Jeličić, Dubravka Negovetić Vranić, Mirjana Kujundžić Tiljak, Hrvoje Pezo, Luc Marks
BACKGROUND: General dentists (GDs) should be aware of the symptoms, signs, diagnoses and treatment of medical emergencies in paediatric patients. AIM: To evaluate the knowledge of GDs in coping with medical emergencies, and to identify whether they are confident to diagnose and treat medical emergencies in paediatric patients. DESIGN: The questionnaire was conducted immediately before the beginning of national dental meetings and continuing education seminars in Croatia, attended by the GDs, in order to obtain a representative sample...
April 19, 2017: International Dental Journal
https://www.readbyqxmd.com/read/28421214/hybrid-molecular-enzymatic-catalytic-cascade-for-complete-electro-oxidation-of-glycerol-using-a-promiscuous-nad-dependent-formate-dehydrogenase-from-candida-boidinii
#14
Sofiene Abdellaoui, Madelaine Seow Chavez, Ivana Matanovic, Andrew R Stephens, Plamen Atanassov, Shelley D Minteer
Glycerol is a common fuel considered for bioenergy applications. Computational docking studies were performed on formate dehydrogenase from Candida boidinii (cbFDH) that showed that mesoxalate can bind to the buried active site of the holo form predicting that mesoxalate, a byproduct of glycerol oxidation, may act as its substrate. Spectroscopic assays and characterization by HPLC and GC/TCD have shown for the first time that cbFDH can act as a decarboxylase with mesoxalate. From this assessment, cbFDH was combined with NH2-TEMPO to form a novel hybrid anode to oxidize glycerol to carbon dioxide at near-neutral pH...
April 19, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28420042/determination-of-reference-intervals-of-acid-base-parameters-in-clinically-healthy-dogs
#15
Ivana Vanova-Uhrikova, Leona Rauserova-Lexmaulova, Kristina Rehakova, Peter Scheer, Jaroslav Doubek
OBJECTIVE: To establish reference intervals for traditionally- and Stewart's approach-determined acid-base parameters in a population of clinically healthy dogs. DESIGN: Prospective study (June 2011-September 2012). SETTING: Veterinary teaching hospital. ANIMALS: Two hundred twenty-four client-owned, clinically healthy dogs. INTERVENTIONS: Blood was collected from the jugular vein and the dorsal pedal artery...
April 18, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28419827/antihyperglycemic-antioxidant-activities-of-tucum%C3%A3-oil-astrocaryum-vulgare-in-alloxan-induced-diabetic-mice-and-identification-of-fatty-acid-profile-by-gas-chromatograph-new-natural-source-to-treat-hyperglycemia
#16
Matheus D Baldissera, Carine F Souza, Thirssa H Grando, Luciana F Cossetin, Michele R Sagrillo, Kátia Nascimento, Aleksandro S da Silva, Alencar K Machado, Ivana B M da Cruz, Lenita M Stefani, Bruna Klein, Roger Wagner, Silvia G Monteiro
The aim of the study was to investigate the effect of the oral administration of tucumã oil (Astrocaryum vulgare) on glucose and insulin levels, oxidative status, and pancreatic genotoxic parameters of alloxan-induced diabetic mice. The animals were divided into four groups (n = 6 each): control/water; control/tucumã oil; diabetic/water; diabetic/tucumã oil treated for 14 days with 5.0 mL kg(-1) via oral gavage. Gas chromatograph characterization demonstrated that oleic/elaidic fatty acid is the most abundant component present in this oil, followed by palmitic and stearic fatty acids...
April 15, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/28419725/healthcare-costs-and-medication-adherence-among-patients-with-fibromyalgia-combination-medication-vs-duloxetine-milnacipran-venlafaxine-and-pregabalin-initiators
#17
Nicole M Marlow, Kit N Simpson, Ivana A Vaughn, Ara Jo, James S Zoller, E Baron Short
OBJECTIVE: To examine medication adherence and healthcare costs for combination prescription initiators (duloxetine/milnacipran/venlafaxine with pregabalin) versus monotherapy initiators (duloxetine, milnacipran, venlafaxine, and pregabalin) among patients with fibromyalgia syndrome (FMS). METHODS: Our retrospective cohort study used claims data for the South Carolina Blue Cross Blue Shield State Health Plan (SHP). Patients with FMS aged ≥18 years, with prescription initiation from July 1, 2007 through June 30, 2010, and SHP enrollment for 12-months pre- and post-index periods were included (combination: N=100, pregabalin: N=665, duloxetine: N=713, milnacipran: N=131, venlafaxine: N=272)...
April 18, 2017: Pain Practice: the Official Journal of World Institute of Pain
https://www.readbyqxmd.com/read/28418828/a-comparison-of-blood-and-cerebrospinal-fluid-cytokines-il-1%C3%AE-il-6-il-18-tnf-%C3%AE-in-neonates-with-perinatal-hypoxia
#18
Darinka Šumanović-Glamuzina, Filip Čulo, Melanie Ivana Čulo, Paško Konjevoda, Marjana Jerković-Raguž
Perinatal hypoxia-ischemia is a specific and important pathological event in neonatal care practice. The data on relationship between the concentrations of cytokines in blood and cerebrospinal fluid (CSF) and perinatal brain injury are scarce. The aim of this study is to evaluate changes in interleukin (IL-1β, IL-6, and IL-18) and tumor necrosis factor alpha (TNF-α) levels in newborns with perinatal hypoxia (PNH). CSF and serum samples of 35 term and near-term (35-40 weeks) newborns with PNH, at the age of 3-96 hours, were analyzed using enzyme-linked immunosorbent assay...
April 18, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28414390/therapeutic-monitoring-of-amiodarone-pharmacokinetics-and-evaluation-of-the-relationship-between-effect-and-dose-concentration
#19
Erika Hrudikova Vyskocilova, Milan Grundmann, Jana Duricova, Ivana Kacirova
Amiodarone is the most effective agent in the therapy of arrhythmias. However, the clinical effect of acute and chronic treatment is unclear and there are differences irrespective of comparable plasma/myocardial amiodarone and its metabolite desethylamiodarone concentations as well. Its unusual pharmacokinetics results in interindividual variation in plasma levels. The association between amiodarone and desethylamiodarone plasma levels and clinical efficacy is difficult to evaluate. This review was carried out to assess whether there is any objective correlation between amiodarone and desethylamiodarone plasma levels and the clinical effect...
March 31, 2017: Biomedical Papers of the Medical Faculty of the University Palacký, Olomouc, Czechoslovakia
https://www.readbyqxmd.com/read/28413228/air-breathing-cathodes-for-microbial-fuel-cell-using-mn-fe-co-and-ni-containing-platinum-group-metal-free-catalysts
#20
Mounika Kodali, Carlo Santoro, Alexey Serov, Sadia Kabir, Kateryna Artyushkova, Ivana Matanovic, Plamen Atanassov
The oxygen reduction reaction (ORR) is one of the major factors that is limiting the overall performance output of microbial fuel cells (MFC). In this study, Platinum Group Metal-free (PGM-free) ORR catalysts based on Fe, Co, Ni, Mn and the same precursor (Aminoantipyrine, AAPyr) were synthesized using identical sacrificial support method (SSM). The catalysts were investigated for their electrochemical performance, and then integrated into an air-breathing cathode to be tested in "clean" environment and in a working microbial fuel cell (MFC)...
March 20, 2017: Electrochimica Acta
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