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https://www.readbyqxmd.com/read/28749560/arbuscular-mycorrhizal-fungi-alter-the-content-and-composition-of-secondary-metabolites-in-bituminaria-bituminosa-l
#1
Laura Pistelli, Virginia Ulivieri, Silvia Giovanelli, Luciano Avio, Manuela Giovannetti, Luisa Pistelli
Secondary metabolites may be affected by arbuscular mycorrhizal fungi (AMF), which are beneficial symbionts associated with the roots of most plant species. Bituminaria bituminosa (L.) C.H.Stirt is known as a source of several phytochemicals and therefore used in folk medicine as vulnerary, cicatrizing, disinfectant agent. Characteristic metabolites found in B. bituminosa are furanocoumarins and pterocarpans which are used in cosmetics and as chemotherapeutic agents. Here we address the question whether AMF inoculation may affect positively the synthesis of these phytochemicals...
July 27, 2017: Plant Biology
https://www.readbyqxmd.com/read/28748758/protozoan-parasites-glycosylphosphatidylinositol-anchors-structures-functions-and-trends-for-drug-discovery
#2
Ana Luísa Malaco Morotti, Maristela Braga Martins-Teixeira, Ivone Carvalho
Glycosylphosphatidylinositol (GPI) anchors are complex molecules that support certain proteins in the outer leaflet of the cell membrane. The GPI anchor scaffold is comprised of a glycan core which contains a phosphoethanolamine linker and a phospholipid chain. GPI-anchored proteins are structurally and functionally diverse and play essential roles in several biological processes, in particular cell-cell interaction. Although all eukaryotes possess GPI anchors in their cell membrane, protozoan parasites use this anchorage much more frequently than higher eukaryotes...
July 27, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28748440/pharmaceuticals-released-from-senior-residences-occurrence-and-risk-evaluation
#3
Silvia Lacorte, Silvia Luis, Cristian Gómez-Canela, Teresa Sala-Comorera, Audrey Courtier, Benoit Roig, Ana Maria Oliveira-Brett, Claire Joannis-Cassan, Juan Ignacio Aragonés, Lucia Poggio, Thierry Noguer, Luisa Lima, Carlos Barata, Carole Calas-Blanchard
One of the main pursuits, yet most difficult, in monitoring studies is to identify the sources of environmental pollution. In this study, we have identified health-care facilities from south European countries as an important source of pharmaceuticals in the environment. We have estimated that compounds consumed in by the elderly and released from effluents of senior residences can reach river waters at a concentration higher than 0.01 μg/L, which is the European Medicines Agency (EMA) threshold for risk evaluation of pharmaceuticals in surface waters...
July 27, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28748345/educational-inequality-in-cancer-mortality-a-record-linkage-study-of-over-35-million-italians
#4
Gianfranco Alicandro, Luisa Frova, Gabriella Sebastiani, Iman El Sayed, Paolo Boffetta, Carlo La Vecchia
PURPOSE: Large studies are needed to evaluate socioeconomic inequality for site-specific cancer mortality. We conducted a longitudinal census-based national study to quantify the relative inequality in cancer mortality among educational levels in Italy. METHODS: We linked the 2011 Italian census with the 2012 and 2013 death registries. Educational inequality in overall cancer and site-specific cancer mortality were evaluated by computing the mortality rate ratio (MRR)...
July 26, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28747443/thiamine-responsive-disease-due-to-mutation-of-tpk1-importance-of-avoiding-misdiagnosis
#5
Federica Invernizzi, Celeste Panteghini, Luisa Chiapparini, Isabella Moroni, Nardo Nardocci, Barbara Garavaglia, Davide Tonduti
No abstract text is available yet for this article.
July 26, 2017: Neurology
https://www.readbyqxmd.com/read/28746806/disposable-amperometric-pcr-free-biosensor-for-direct-detection-of-adulteration-with-horsemeat-in-raw-lysates-targeting-mitochondrial-dna
#6
Víctor Ruiz-Valdepeñas Montiel, María Luisa Gutíerrez, Rebeca M Torrente-Rodríguez, Eloy Povedano, Eva Vargas, A Julio Reviejo, Rosario Linacero, Francisco J Gallego, Susana Campuzano, Jose M Pingarron
A novel electrochemical disposable nucleic acid biosensor for simple, rapid and specific detection of adulterations with horsemeat is reported in this work. The biosensing platform involves immobilization of a 40-mer RNA probe specific for a characteristic fragment of the mitochondrial DNA D-loop region of horse onto the surface of magnetic microcarriers. In addition, signal amplification was accomplished by using a commercial antibody specific to RNA/DNA duplexes and a bacterial protein conjugated with an HRP homopolymer (ProtA-HRP40)...
July 26, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28746735/early-transcriptional-response-pathways-in-daphnia-magna-are-coordinated-in-networks-of-crustacean-specific-genes
#7
Luisa Orsini, James B Brown, Omid Shams Solari, Dong Li, Shan He, Ram Podicheti, Marcus H Stoiber, Katina I Spanier, Donald Gilbert, Mieke Jansen, Douglas Rusch, Michael E Pfrender, John K Colbourne, Mikko J Frilander, Jouni Kvist, Ellen Decaestecker, Karel A C De Schamphelaere, Luc De Meester
Natural habitats are exposed to an increasing number of environmental stressors that cause important ecological consequences. However, the multifarious nature of environmental change, the strength and the relative timing of each stressor largely limit our understanding of biological responses to environmental change. In particular early response to unpredictable environmental change, critical to survival and fitness in later life stages, is largely uncharacterized. Here, we characterize the early transcriptional response of the keystone species Daphnia magna to twelve environmental perturbations, including biotic and abiotic stressors...
July 26, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28746312/sequencing-and-de-novo-assembly-of-150-genomes-from-denmark-as-a-population-reference
#8
Lasse Maretty, Jacob Malte Jensen, Bent Petersen, Jonas Andreas Sibbesen, Siyang Liu, Palle Villesen, Laurits Skov, Kirstine Belling, Christian Theil Have, Jose M G Izarzugaza, Marie Grosjean, Jette Bork-Jensen, Jakob Grove, Thomas D Als, Shujia Huang, Yuqi Chang, Ruiqi Xu, Weijian Ye, Junhua Rao, Xiaosen Guo, Jihua Sun, Hongzhi Cao, Chen Ye, Johan van Beusekom, Thomas Espeseth, Esben Flindt, Rune M Friborg, Anders E Halager, Stephanie Le Hellard, Christina M Hultman, Francesco Lescai, Shengting Li, Ole Lund, Peter Løngren, Thomas Mailund, Maria Luisa Matey-Hernandez, Ole Mors, Christian N S Pedersen, Thomas Sicheritz-Pontén, Patrick Sullivan, Ali Syed, David Westergaard, Rachita Yadav, Ning Li, Xun Xu, Torben Hansen, Anders Krogh, Lars Bolund, Thorkild I A Sørensen, Oluf Pedersen, Ramneek Gupta, Simon Rasmussen, Søren Besenbacher, Anders D Børglum, Jun Wang, Hans Eiberg, Karsten Kristiansen, Søren Brunak, Mikkel Heide Schierup
Hundreds of thousands of human genomes are now being sequenced to characterize genetic variation and use this information to augment association mapping studies of complex disorders and other phenotypic traits. Genetic variation is identified mainly by mapping short reads to the reference genome or by performing local assembly. However, these approaches are biased against discovery of structural variants and variation in the more complex parts of the genome. Hence, large-scale de novo assembly is needed. Here we show that it is possible to construct excellent de novo assemblies from high-coverage sequencing with mate-pair libraries extending up to 20 kilobases...
July 26, 2017: Nature
https://www.readbyqxmd.com/read/28745104/ph-sensitive-nanoparticles-for-improved-oral-delivery-of-dapsone-risk-assessment-design-optimization-and-characterization
#9
Luíse L Chaves, Sofia A Costa Lima, Alexandre Cc Vieira, Luísa Barreiros, Marcela A Segundo, Domingos Ferreira, Bruno Sarmento, Salette Reis
AIM: To optimize the production of pH-sensitive dapsone (DAP) nanoparticles based on Eugradit L100 (NPs-EL100-DAP) for oral delivery. MATERIALS & METHODS: NPs-EL100-DAP were optimized using a Plackett-Burman design and a Box-Behnken design. The physicochemical properties of the obtained nanoparticles were monitored by microscopy, dynamic light scattering, Fourier transform infrared spectroscopy, differential scanning calorimetry, in vitro release assays, and examined for cytotoxicity and permeation across intestinal barrier...
July 26, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28744880/chemical-composition-and-diuretic-natriuretic-and-kaliuretic-effects-of-extracts-of-mimosa-bimucronata-dc-kuntze-leaves-and-its-majority-constituent-methyl-gallate-in-rats
#10
Fabile Schlickmann, Priscila de Souza, Thaise Boeing, Luisa N B Mariano, Viviane M B Steimbach, Clarissa de M A Krueger, Luísa M da Silva, Sérgio F de Andrade, Valdir Cechinel-Filho
OBJECTIVES: Some species of the genus Mimosa showed promising results in previous investigations, which include diuretic effect; however, no chemical analyses or animal model has been conducted so far to evaluate the biological properties of M. bimucronata. METHODS: Male Wistar rats received the oral treatment with vehicle; hydrochlorothiazide; methanolic extract from M. bimucronata (MEMB), dichloromethane (DCM) and ethyl acetate (EA) fractions or methyl gallate (MG)...
July 26, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28744831/25-hydroxyvitamin-d-levels-of-children-are-inversely-related-to-adiposity-assessed-by-body-mass-index
#11
Silvia Barja-Fernández, Concepción M Aguilera, Isabel Martínez-Silva, Rocío Vazquez, Mercedes Gil-Campos, Josune Olza, Juan Bedoya, Carmen Cadarso-Suárez, Ángel Gil, Luisa M Seoane, Rosaura Leis
Vitamin D deficiency is associated with wide range of pathologies. Some evidences have shown that low vitamin D circulating levels in children and adolescent are related to fat mass and obesity. The objectives of the present study were to characterize vitamin D status in children and adolescents and to determine if serum 25-hydroxyvitamin D (25(OH)D) concentration is related to adiposity assessed by body mass index (BMI). Serum 25(OH)D levels were measured by LIAISON method in 471 children and adolescents (2 to 18 years age) and analyzed according to gender, pubertal period, age, and BMI...
July 25, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28744735/fast-slow-bursters-in-the-unfolding-of-a-high-codimension-singularity-and-the-ultra-slow-transitions-of-classes
#12
Maria Luisa Saggio, Andreas Spiegler, Christophe Bernard, Viktor K Jirsa
Bursting is a phenomenon found in a variety of physical and biological systems. For example, in neuroscience, bursting is believed to play a key role in the way information is transferred in the nervous system. In this work, we propose a model that, appropriately tuned, can display several types of bursting behaviors. The model contains two subsystems acting at different time scales. For the fast subsystem we use the planar unfolding of a high codimension singularity. In its bifurcation diagram, we locate paths that underlie the right sequence of bifurcations necessary for bursting...
December 2017: Journal of Mathematical Neuroscience
https://www.readbyqxmd.com/read/28744656/arms2-a69s-polymorphism-is-associated-with-the-number-of-ranibizumab-injections-needed-for-exudative-age-related-macular-degeneration-in-a-pro-re-nata-regimen-during-4-years-of-follow-up
#13
Alicia Valverde-Megías, Silvia Veganzones-de-Castro, Juan Donate-López, Maria Luisa Maestro-de-Las-Casas, Alicia Megías-Fresno, Julián García-Feijoo
PURPOSE: To investigate whether single-nucleotide polymorphisms (SNPs) known to be strongly associated with the development of age-related macular degeneration (AMD) have an influence on recurrence rate of choroidal neovascularization (CNV) activity during 4-year ranibizumab treatment for exudative AMD. METHODS: This prospective study included 103 treatment-naïve patients (103 eyes) that received initially a loading dose of 3 monthly ranibizumab injections and thereafter, were treated according to an as-needed regimen for a 4-year follow-up period...
July 25, 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28743719/the-atypical-receptor-ccrl2-is-required-for-cxcr2-dependent-neutrophil-recruitment-and-tissue-damage
#14
Annalisa Del Prete, Laura Martínez-Muñoz, Cristina Mazzon, Lara Toffali, Francesca Sozio, Lorena Za, Daniela Bosisio, Luisa Gazzurelli, Valentina Salvi, Laura Tiberio, Chiara Liberati, Eugenio Scanziani, Annunciata Vecchi, Carlo Laudanna, Mario Mellado, Alberto Mantovani, Silvano Sozzani
CCRL2 is a seven transmembrane domain receptor that shares structural and functional similarities with the family of the Atypical Chemokine Receptors (ACKRs). CCRL2 is upregulated by inflammatory signals and, unlike from other ACKRs, is not a chemoattractant scavenging receptor, does not activate β-arrestins and is widely expressed by many leukocyte subsets. Therefore, the biological role of CCRL2 in immunity is still unclear. Here we report that CCRL2-deficient mice have a defect in neutrophil recruitment and are protected in two models of inflammatory arthritis...
July 25, 2017: Blood
https://www.readbyqxmd.com/read/28743674/the-role-of-alternative-splicing-coupled-to-nonsense-mediated-mrna-decay-in-human-disease
#15
Paulo J da Costa, Juliane Menezes, Luísa Romão
Alternative pre-mRNA splicing (AS) affects gene expression as it generates proteome diversity. Nonsense-mediated mRNA decay (NMD) is a surveillance pathway that recognizes and selectively degrades mRNAs carrying premature translation-termination codons (PTCs), preventing the production of truncated proteins that could result in disease. Several studies have also implicated NMD in the regulation of steady-state levels of physiological mRNAs. In addition, it is known that several regulated AS events do not lead to generation of protein products, as they lead to transcripts that carry PTCs and thus, they are committed to NMD...
July 22, 2017: International Journal of Biochemistry & Cell Biology
https://www.readbyqxmd.com/read/28742723/supraglottic-atomization-of-surfactant-in-spontaneously-breathing-lambs-receiving-continuous-positive-airway-pressure
#16
Ilaria Milesi, David G Tingay, Anna Lavizzari, Federico Bianco, Emanuela Zannin, Paolo Tagliabue, Fabio Mosca, Maria Luisa Ventura, Anushi Rajapaksa, Elizabeth J Perkins, Don Black, Marco Di Castri, Magdy Sourial, Gerhard Pohlmann, Raffaele L Dellaca'
OBJECTIVES: To determine the short-term tolerance, efficacy, and lung deposition of supraglottic atomized surfactant in spontaneously breathing lambs receiving continuous positive airway pressure. DESIGN: Prospective, randomized animal study. SETTING: Animal research laboratory. SUBJECTS: Twenty-two preterm lambs on continuous positive airway pressure (132 ± 1 d gestational age). INTERVENTIONS: Animals receiving continuous positive airway pressure via binasal prongs at 8 cm H2O were randomized to receive atomized surfactant at approximately 60-minute of life (atom; n = 15) or not (control; n = 7)...
July 22, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28742374/high-throughput-analysis-identifying-drugs-that-regulate-apolipoprotein-a-i-synthesis
#17
Michael J Haas, Luisa Onstead-Haas, William Kurban, Harshit Shah, Monica Plazarte, Ayham Chamseddin, Arshag D Mooradian
Apolipoprotein A-I (apo A-I) is the primary antiatherogenic protein in high-density lipoprotein (HDL). Despite the controversy as to the clinical effectiveness of raising HDL, the search is ongoing for safe and effective drugs that increase HDL and apo A-I levels. To identify novel compounds that can increase hepatic apo A-I production, two drug libraries were screened. The NIH clinical collection (NCC) and the NIH clinical collection 2 (NCC2) were purchased from Evotec (San Francisco, CA). The NCC library contains 446 compounds and the NCC2 library contains 281 compounds, all dissolved in dimethylsulfoxide at a concentration of 10 mM...
July 25, 2017: Assay and Drug Development Technologies
https://www.readbyqxmd.com/read/28742344/insights-into-the-molybdenum-copper-heterometallic-cluster-assembly-in-the-orange-protein-probing-intermolecular-interactions-with-an-artificial-metal-binding-atcun-tag
#18
Biplab K Maiti, Rui M Almeida, Luisa B Maia, Isabel Moura, José J G Moura
Orange protein (ORP) is a small bacterial protein, of unknown function, that contains a unique molybdenum/copper heterometallic cluster, [S2Mo(VI)S2Cu(I)S2Mo(VI)S2](3-) (Mo/Cu), non-covalently bound. The native cluster can be reconstituted in a protein-assisted mode by the addition of Cu(II) plus tetrathiomolybdate to apo-ORP under controlled conditions. In the work described herein, we artificially inserted the ATCUN ("amino terminus Cu and Ni") motif in the Desulfovibrio gigas ORP (Ala1Ser2His3 followed by the native amino acid residues; modified protein abbreviated as ORP*) to increase our understanding of the Mo/Cu cluster assembly in ORP...
July 25, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28742251/evolution-of-volatile-emission-in-rhus-coriaria-organs-during-different-stages-of-growth-and-evaluation-of-the-essential-oil-composition
#19
Rose Vanessa Bandeira Reidel, Pier Luigi Cioni, Luigi Majo, Luisa Pistelli
Rhus coriaria, also known as sumac, have been traditionally used in many countries as spice, condiment, dying agent and medicinal herb. The chemical composition of essential oils and the volatile emissions from different organs of this species collected in Sicily (Italy) were analyzed by GC-FID and GC-MS. Monoterpene and sesquiterpene hydrocarbons were the most abundant class in the volatile emissions with β-caryophyllene and α-pinene were the main constituents in the majority of the examined samples. The EO composition was characterized by high amount of monoterpene and sesquiterpene hydrocarbons together with diterpenes...
July 25, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/28742150/cancer-incidence-rates-and-trends-among-children-and-adolescents-in-piedmont-1967-2011
#20
Elena Isaevska, Milena Manasievska, Daniela Alessi, Maria Luisa Mosso, Corrado Magnani, Carlotta Sacerdote, Guido Pastore, Franca Fagioli, Franco Merletti, Milena Maule
In the past, increases in childhood cancer incidence were reported in Europe and North America. The aim of this study is to show updated patterns of temporal behavior using data of the Childhood Cancer Registry of Piedmont (CCRP), a region with approximately 4.5 million inhabitants in North-West Italy. CCRP has been recording incident cases in children (0-14 years) since 1967 and in adolescents (15-19) since 2000. Time trends were estimated as annual percent change (APC) over the 1976-2011 period for children, and over 2000-2011 for both children and adolescents...
2017: PloS One
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