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https://www.readbyqxmd.com/read/28337841/yeast-aquaporin-regulation-by-4-hydroxynonenal-is-implicated-in-oxidative-stress-response
#1
Claudia Rodrigues, Ivana Tartaro Bujak, Branka Mihaljević, Graça Soveral, Ana Cipak Gasparovic
Reactive oxygen species, especially hydrogen peroxide (H2 O2 ), contribute to functional molecular impairment and cellular damage, but also are necessary in normal cellular metabolism, and in low doses play stimulatory role in cell proliferation and stress resistance. In parallel, reactive aldehydes such as 4-hydroxynonenal (HNE), are lipid peroxidation breakdown products which also contribute to regulation of numerous cellular processes. Recently, channeling of H2 O2 by some mammalian aquaporin isoforms has been reported and suggested to contribute to aquaporin involvement in cancer malignancies, although the mechanism by which these membrane water channels are implicated in oxidative stress is not clear...
March 24, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28337623/erratum-to-isotherm-kinetic-and-thermodynamic-study-of-ciprofloxacin-sorption-on-sediments
#2
Dragana Mutavdžić Pavlović, Lidija Ćurković, Ivana Grčić, Iva Šimić, Josip Župan
No abstract text is available yet for this article.
March 23, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28337554/successive-relaxation-cycles-during-long-time-cell-aggregate-rounding-after-uni-axial-compression
#3
Ivana Pajic-Lijakovic, Milan Milivojevic
The mean features of cell surface rearrangement during cell aggregate rounding after uni-axial compression between parallel plates are considered. This is based on long-time rheological modeling approaches in order to shed further light on collective cell migration. Many aspects of cell migration at the supra-cellular level, such as the coordination between surrounding migrating cell groups that leads to uncorrelated motility, have remained unclear. Aggregate shape changes during rounding are considered depending on the size and homogeneity of 2-D and 3-D cell aggregates...
March 23, 2017: Journal of Biological Physics
https://www.readbyqxmd.com/read/28336397/soluble-endoglin-modulates-the-pro-inflammatory-mediators-nf-%C3%AE%C2%BAb-and-il-6-in-cultured-human-endothelial-cells
#4
Michala Varejckova, Eunate Gallardo-Vara, Matej Vicen, Barbora Vitverova, Petra Fikrova, Eva Dolezelova, Jana Rathouska, Alena Prasnicka, Katerina Blazickova, Stanislav Micuda, Carmelo Bernabeu, Ivana Nemeckova, Petr Nachtigal
AIMS: Endoglin is a transmembrane glycoprotein, that plays an important role in regulating endothelium. Proteolytic cleavage of membrane endoglin releases soluble endoglin (sEng), whose increased plasma levels have been detected in diseases related to the cardiovascular system. It was proposed that sEng might damage vascular endothelium, but detailed information about the potential mechanisms involved is not available. Thus, we hypothesized that sEng contributes to endothelial dysfunction, leading to a pro-inflammatory phenotype by a possible modulation of the TGF-β and/or inflammatory pathways...
March 20, 2017: Life Sciences
https://www.readbyqxmd.com/read/28336316/effects-of-age-and-soybean-isoflavones-on-hepatic-cholesterol-metabolism-and-thyroid-hormone-availability-in-acyclic-female-rats
#5
Branka Šošić-Jurjević, Dieter Lütjohann, Ivana Jarić, Marko Miler, Danijela Vojnović Milutinović, Branko Filipović, Vladimir Ajdžanović, Kostja Renko, Eva Katrin Wirth, Snežana Janković, Josef Kӧhrle, Verica Milošević
Soy-food and its isoflavones, genistein (G) and daidzein (D), were reported to exert mild cholesterol-lowering effect, but the underlying mechanism is still unclear. In this research, first we studied age-related alterations in hepatic cholesterol metabolism of acyclic middle-aged (MA) female rats. Then we tested if purified isoflavones may prevent or reverse these changes, and whether putative changes in hepatic thyroid hormone availability may be associated with this effect. Serum and hepatic total cholesterol (TChol), bile acid and cholesterol precursors, as well as serum TSH and T4 concentrations, hepatic deiodinase (Dio) 1 enzyme activity and MCT8 protein expression were determined by comparing data obtained for MA with young adult (YA) intact (IC) females...
March 20, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28336275/structural-characterization-of-purine-nucleoside-phosphorylase-from-human-pathogen-helicobacter-pylori
#6
Zoran Štefanić, Goran Mikleušević, Marija Luić, Agnieszka Bzowska, Ivana Leščić Ašler
Microaerophilic bacterium Helicobacer pylori is a well known human pathogen involved in the development of many diseases. Due to the evergrowing infection rate and increase of H. pylori antibiotic resistence, it is of utmost importance to find a new way to attack and eradicate H. pylori. The purine metabolism in H. pylori is solely dependant on the salvage pathway and one of the key enzymes in this pathway is purine nucleoside phosphorylase (PNP). In this timely context, we report here the basic biochemical and structural characterization of recombinant PNP from the H...
March 20, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28336204/n-terminal-pro-brain-natriuretic-peptide-is-related-with-coronary-flow-velocity-reserve-and-diastolic-dysfunction-in-patients-with-asymmetric-hypertrophic-cardiomyopathy
#7
Milorad Tesic, Jelena Seferovic, Danijela Trifunovic, Ana Djordjevic-Dikic, Vojislav Giga, Ivana Jovanovic, Olga Petrovic, Jelena Marinkovic, Sanja Stankovic, Jelena Stepanovic, Arsen Ristic, Milan Petrovic, Nebojsa Mujovic, Bosiljka Vujisic-Tesic, Branko Beleslin, Vladan Vukcevic, Goran Stankovic, Petar Seferovic
BACKGROUND: The relations of elevated N-terminal pro-brain natriuretic peptide (NT-pro-BNP) and cardiac ischemia in hypertrophic cardiomyopathy (HCM) patients is uncertain. Therefore we designed the study with the following aims: (1) to analyze plasma concentrations of NT-pro-BNP in various subsets of HCM patients; (2) to reveal the correlations of NT-pro-BNP, myocardial ischemia, and diastolic dysfunction; (3) to assess predictors of the elevated plasma levels of NT-pro-BNP. METHODS AND RESULTS: In 61 patients (mean age 48...
March 20, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28335457/the-epigenetic-link-between-prenatal-adverse-environments-and-neurodevelopmental-disorders
#8
REVIEW
Marija Kundakovic, Ivana Jaric
Prenatal adverse environments, such as maternal stress, toxicological exposures, and viral infections, can disrupt normal brain development and contribute to neurodevelopmental disorders, including schizophrenia, depression, and autism. Increasing evidence shows that these short- and long-term effects of prenatal exposures on brain structure and function are mediated by epigenetic mechanisms. Animal studies demonstrate that prenatal exposure to stress, toxins, viral mimetics, and drugs induces lasting epigenetic changes in the brain, including genes encoding glucocorticoid receptor (Nr3c1) and brain-derived neurotrophic factor (Bdnf)...
March 18, 2017: Genes
https://www.readbyqxmd.com/read/28334546/-parathyroid-cancer
#9
Ivana Ságová, Matej Stančík, Peter Kentoš, Dušan Pavai, Daniela Kantárová, Anton Vaňuga, Peter Vaňuga
Parathyroid cancer is a rare endocrine malignancy, representing less than 1 % of all cases of primary hyperparathyroidism. The exact etiology of the disease remains unknown. Known risk factors include neck irradiation, end stage renal failure, genetic factors, particularly the the HPRT2/CDCT73 gene mutation. The clinical picture is often indolent, yet progressive with a trend of local invasion and metastasis formation in advanced disease. The clinical picture includes symptoms of severe and resistant hypercalcemia, requiring intensive therapy often with the need of dialysis...
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28332699/mitotic-index-matter-how-to-improve-the-assessment-of-mitosis-in-order-to-better-classify-g2-breast-cancer-and-luminal-a-category
#10
Rachele Del Sordo, Guido Bellezza, Ivana Ferri, Anjuta Pireddu, Renato Colella, Angelo Sidoni
G2 ductal infiltrating carcinomas are a heterogeneous group of tumours with ambiguous clinical significance. This is because G2 carcinomas are almost always the largest category and poorly reproducible. Mitotic count (MC) is one of the causes of poor histological grading reproducibility. The phosphoistone H3 (PPH3) antibody improves identification of mitotic figures. The aim of our study is to demonstrate whether using a new histological grading system based on PPH3 immunostaining to assess MC can re-stratify G2 category...
March 23, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/28332632/loss-of-chromosome-y-leads-to-down-regulation-of-kdm5d-and-kdm6c-epigenetic-modifiers-in-clear-cell-renal-cell-carcinoma
#11
Madeleine Arseneault, Jean Monlong, Naveen S Vasudev, Ruhina S Laskar, Maryam Safisamghabadi, Patricia Harnden, Lars Egevad, Nazanin Nourbehesht, Pudchalaluck Panichnantakul, Ivana Holcatova, Antonin Brisuda, Vladimir Janout, Helena Kollarova, Lenka Foretova, Marie Navratilova, Dana Mates, Viorel Jinga, David Zaridze, Anush Mukeria, Pouria Jandaghi, Paul Brennan, Alvis Brazma, Jorg Tost, Ghislaine Scelo, Rosamonde E Banks, Mark Lathrop, Guillaume Bourque, Yasser Riazalhosseini
Recent genomic studies of sporadic clear cell renal cell carcinoma (ccRCC) have uncovered novel driver genes and pathways. Given the unequal incidence rates among men and women (male:female incidence ratio approaches 2:1), we compared the genome-wide distribution of the chromosomal abnormalities in both sexes. We observed a higher frequency for the somatic recurrent chromosomal copy number variations (CNVs) of autosomes in male subjects, whereas somatic loss of chromosome X was detected exclusively in female patients (17...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28332001/ncam1-is-the-target-of-mirna-572-validation-in-the-human-oligodendroglial-cell-line
#12
Roberta Mancuso, Simone Agostini, Ivana Marventano, Ambra Hernis, Marina Saresella, Mario Clerici
The neural cell adhesion molecule 1 (NCAM1) is a fundamental protein in cell-cell interaction and in cellular developmental processes, and its dysregulation is involved in a number of diseases including multiple sclerosis. Studies in rats suggest that the modulation of NCAM1 expression is regulated by miRNA-572, but no data are available confirming such interaction in the human system. We analyzed whether this is the case using a human oligodendroglial cell line (MO3.13). MO3.13 cells were transfected with miRNA-572 mimic and inhibitor separately; NCAM1 mRNA and protein expression levels were analyzed at different time points after transfection...
March 22, 2017: Cellular and Molecular Neurobiology
https://www.readbyqxmd.com/read/28330826/the-influence-of-methamphetamine-on-maternal-behavior-and-development-of-the-pups-during-the-neonatal-period
#13
Mária Ševčíková, Ivana Hrebíčková, Eva Macúchová, Romana Šlamberová
Since it enters breast milk, methamphetamine (MA) abuse during lactation can not only affect the quality of maternal behavior but also postnatal development of pups. The aim of the present study was to examine the effect of injected MA (5mg/kg) on maternal behavior of rats and the differences in postnatal development, during postnatal days (PD) 1-11, of pups when the pups were directly exposed (i.e., injected) to MA or received MA indirectly via breast milk. Maternal behavior was examined using observation test (PD 1-22) and pup retrieval test (PD 1-12)...
March 18, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28330296/application-of-pectinases-for-recovery-of-grape-seeds-phenolics
#14
Petra Štambuk, Dora Tomašković, Ivana Tomaz, Luna Maslov, Domagoj Stupić, Jasminka Karoglan Kontić
Grape marc seeds contain large amounts of different polyphenolic compounds so they can be used for the recovery of these classes of compounds. A new green extraction method for the recovery of phenols from the grape seeds was developed. To provide a high quality extract sourced from natural product by using enzymes as alternative solvents and spending less energy, it is impeccable to call this method "green". Furthermore, this method was optimized by finding out which conditions provide the best possible results and achieving the maximum recovery of polyphenols from grape seeds...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28326967/development-and-validation-of-a-remote-home-safety-protocol
#15
Sergio Romero, Mi Jung Lee, Ivana Simic, Charles Levy, Jon Sanford
AIM: Environmental assessments and subsequent modifications conducted by healthcare professionals can enhance home safety and promote independent living. However, travel time, expense and the availability of qualified professionals can limit the broad application of this intervention. Remote technology has the potential to increase access to home safety evaluations. PURPOSE: This study describes the development and validation of a remote home safety protocol that can be used by a caregiver of an elderly person to video-record their home environment for later viewing and evaluation by a trained professional...
March 22, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28324488/flow-cytometer-monitoring-of-bnip3-and-bnip3l-nix-dependent-mitophagy
#16
Matilda Šprung, Ivan Dikic, Ivana Novak
Mitochondria are organelles with numerous vital roles in cellular metabolism. Impaired or damaged mitochondria are degraded in autophagolysosomes in a process known as mitophagy. Given the fundamental role of mitophagy in maintenance of cellular homeostasis, methods and techniques with which to study this process are constantly evolving and emerging. So far, mitophagy flux was mostly monitored using fluorescently labeled LC3 protein on autophagosomal membrane and any of the labeled outer mitochondrial membrane proteins...
March 22, 2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28323911/monogenic-diabetes-accounts-for-6-3-of-cases-referred-to-15-italian-pediatric-diabetes-centers-during-2007-2012
#17
Maurizio Delvecchio, Enza Mozzillo, Giuseppina Salzano, Dario Iafusco, Giulio Frontino, Patrizia I Patera, Ivana Rabbone, Valentino Cherubini, Valeria Grasso, Nadia Tinto, Sabrina Giglio, Giovanna Contreas, Rosa Di Paola, Alessandro Salina, Vittoria Cauvin, Stefano Tumini, Giuseppe d'Annunzio, Lorenzo Iughetti, Vilma Mantovani, Giulio Maltoni, Sonia Toni, Marco Marigliano, Fabrizio Barbetti
Context: Etiologic diagnosis of diabetes may impact on therapeutic strategy, and prognosis of chronic complications. Objective: The aim of the study was to establish the relative percentage of different diabetes subtypes in patients attending Italian pediatric diabetes centers, and the influence of etiologic diagnosis on therapy. Design, Setting and Patients: This was a retrospective study. Clinical records of 3781 consecutive patients (age: 0-18 years) referred to fifteen pediatric diabetes clinics and diagnosed with diabetes or IFG between Jan/1/2007 and Dec/31/2012 were examined...
February 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28322460/dapsone-induced-agranulocytosis-possible-involvement-of-low-activity-n-acetyltransferase-2
#18
Ines Potočnjak, Robert Likić, Iveta Šimić, Danica Juričić Nahal, Ivana Čegec, Lana Ganoci, Nada Božina
Dapsone-induced agranulocytosis is a rare but potentially fatal adverse drug reaction (ADR). A 45-year old male Caucasian patient developed agranulocytosis caused by dapsone (diamino-diphenyl sulfone) which he was prescribed for leukocytoclastic vasculitis. Patient's treatment consisted of termination of dapsone, antibiotic therapy, and granulocyte colony stimulating factor leading to prompt improvement of symptoms and normalization of laboratory blood values. Diagnostic evaluation revealed methemoglobinemia and excluded glucose-6-phosphate dehydrogenase (G6PD) deficiency...
March 21, 2017: Fundamental & Clinical Pharmacology
https://www.readbyqxmd.com/read/28320562/microstructural-characterization-of-dental-zinc-phosphate-cements-using-combined-small-angle-neutron-scattering-and-microfocus-x-ray-computed-tomography
#19
Alberto Viani, Konstantinos Sotiriadis, Ivana Kumpová, Lucia Mancini, Marie-Sousai Appavou
OBJECTIVE: To characterize the microstructure of two zinc phosphate cement formulations in order to investigate the role of liquid/solid ratio and composition of powder component, on the developed porosity and, consequently, on compressive strength. METHODS: X-ray powder diffraction with the Rietveld method was used to study the phase composition of zinc oxide powder and cements. Powder component and cement microstructure were investigated with scanning electron microscopy...
February 17, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28318230/label-free-discovery-array-platform-for-the-characterization-of-glycan-binding-proteins-and-glycoproteins
#20
Christopher John Gray, Antonio Sánchez-Ruiz, Ivana Šardzíková, Yassir A Ahmed, Rebecca Louise Miller, Juana E Reyes Martinez, Edward Pallister, Kun Huang, Peter Both, Mirja Hartmann, Hannah N Roberts, Robert Šardzik, Santanu Mandal, Jeremy E Turnbull, Claire E Eyers, Sabine L Flitsch
The identification of carbohydrate-protein interactions is central to our understanding of the roles of cell-surface carbohydrates (the glycocalyx), fundamental for cell-recognition events. Therefore there is a need for fast high-throughput biochemical tools to capture the complexity of these biological interactions. Here we describe a rapid method for qualitative label-free detection of carbohydrate-protein interactions on arrays of simple synthetic glycans, more com-plex natural glycosaminoglycans (GAG) and lectins/carbohydrate binding proteins using MALDI-ToF mass spectrometry...
March 20, 2017: Analytical Chemistry
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