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https://www.readbyqxmd.com/read/28527206/social-representation-of-dementia-an-analysis-of-5-792-consecutive-cases-evaluated-in-a-memory-clinic
#1
Pilar Cañabate, Gabriel Martínez, Maitée Rosende-Roca, Mariola Moreno, Silvia Preckler, Sergi Valero, Oscar Sotolongo, Isabel Hernández, Montserrat Alegret, Gemma Ortega, Ana Espinosa, Ana Mauleón, Liliana Vargas, Octavio Rodríguez, Carla Abdelnour, Domingo Sánchez, Elvira Martín, Agustín Ruiz, Lluís Tárraga, Mercè Boada
BACKGROUND: Different interpretations of cognitive impairment and dementia due to differences in health structures, such as cultural differences could affect the diagnosis and treatment of the condition. it is reasonable to expect that the social and family impact of the disease and coping strategies will differ among societies. OBJECTIVE: The general aim of this study is to understand the social representations of dementia, its associated practices, and the effects they imply...
May 17, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28526488/-targeting-the-gut-liver-axis-in-liver-disease
#2
REVIEW
Reiner Wiest, Agustin Albillos, Michael Trauner, Jashmohan Bajaj, Rajiv Jalan
The gut is open to the outer environment, harbours the microbiome containing several fold more genetic material than the human genome and produces a myriad of metabolites as well as hormones/peptides. The liver is at the nexus between this vast source of nutrients, toxins and hormones and the remaining human body. Not surprisingly, this liver-gut-axis has hence, been demonstrated in experimental models and in-vitro systems to contribute to the pathogenesis of most liver diseases such as alcoholic and non-alcoholic fatty liver disease (NAFLD), -steatohepatitis (NASH), cholestatic liver diseases, hepatocellular carcinoma, acute-on-chronic liver failure, progression to fibrosis/cirrhosis and complications of cirrhosis...
May 16, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28521061/extracellular-camp-activates-molecular-signalling-pathways-associated-with-sperm-capacitation-in-bovines
#3
Carlos Agustín I Alonso, Claudia E Osycka-Salut, Luciana Castellano, Andreína Cesari, Nicolás Di Siervi, Adrián Mutto, Anders Johannisson, Jane M Morrell, Carlos Davio, Silvina Perez-Martinez
STUDY QUESTION: Is extracellular cAMP involved in the regulation of signalling pathways in bovine sperm capacitation? SUMMARY ANSWER: Extracellular cAMP-induced sperm capacitation through the activation of different signalling pathways that involve phospholipase C (PLC), PKC/ERK1-2 signalling and an increase in sperm Ca2+ levels, as well as soluble AC and cAMP/protein kinase A (PKA) signalling. WHAT IS KNOWN ALREADY: In order to fertilize the oocyte, ejaculated spermatozoa must undergo a series of changes in the female reproductive tract, known as capacitation...
May 18, 2017: Molecular Human Reproduction
https://www.readbyqxmd.com/read/28518190/sequential-incorporation-of-metallic-cations-cd-2-and-hg-2-and-n-octylamine-into-titanium-phosphate-nanoparticles-and-their-subsequent-release-in-acid-media
#4
Javier Carrasco-Rodríguez, Daniel Martín-Yerga, Leoncio Garrido, Agustín Costa-García, Francisco J García Alonso
Titanium phosphate nanoparticles, TPNP, consisting of a NaTi2(PO4)3 core and a shell of hydrogen phosphate and dihydrogen phosphate of titanium, undergo fast hydrolysis in water releasing phosphoric acid. This reaction is inhibited in the presence of metallic ions like Cd(2+) or Hg(2+), which are able to replace the protons of the shell acid phosphates. The amount of the adsorbed metallic cations could be regulated using counterions of different basicity. The resulting nanoparticles also incorporate NH2(CH2)7CH3 (N-octylamine) at room temperature forming N-octylammonium/phosphate ion pairs, but it was found that at higher cation concentration inside the nanoparticle, a lower amount of amine was adsorbed...
May 18, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28516338/intergroup-variation-in-robbing-and-bartering-by-long-tailed-macaques-at-uluwatu-temple-bali-indonesia
#5
Fany Brotcorne, Gwennan Giraud, Noëlle Gunst, Agustín Fuentes, I Nengah Wandia, Roseline C Beudels-Jamar, Pascal Poncin, Marie-Claude Huynen, Jean-Baptiste Leca
Robbing and bartering (RB) is a behavioral practice anecdotally reported in free-ranging commensal macaques. It usually occurs in two steps: after taking inedible objects (e.g., glasses) from humans, the macaques appear to use them as tokens, returning them to humans in exchange for food. While extensively studied in captivity, our research is the first to investigate the object/food exchange between humans and primates in a natural setting. During a 4-month study in 2010, we used both focal and event sampling to record 201 RB events in a population of long-tailed macaques (Macaca fascicularis), including four neighboring groups ranging freely around Uluwatu Temple, Bali (Indonesia)...
May 17, 2017: Primates; Journal of Primatology
https://www.readbyqxmd.com/read/28514187/diphenhydramine-inhibits-voltage-gated-proton-channels-hv1-and-induces-acidification-in-leukemic-jurkat-t-cells-new-insights-into-the-pro-apoptotic-effects-of-antihistaminic-drugs
#6
Agustín Asuaje, Pedro Martín, Nicolás Enrique, Leandro Agustín Díaz Zegarra, Paola Smaldini, Guillermo Docena, Verónica Milesi
An established characteristic of neoplastic cells is their metabolic reprogramming, known as the Warburg effect, with greater reliance on energetically less efficient pathways (such as glycolysis and pentose phosphate shunt) compared with oxidative phosphorylation. This results in an overproduction of acidic species that must be extruded to maintain intracellular homeostasis. We recently described that blocking the proton currents in leukemic cells mediated by Hv1 ion channels triggers a marked intracellular acidification and apoptosis induction...
May 17, 2017: Channels
https://www.readbyqxmd.com/read/28512733/a-lipidomic-cell-based-assay-for-studying-drug-induced-phospholipidosis-and-steatosis
#7
Juan Carlos García-Cañaveras, Manuel David Peris-Díaz, M Isabel Alcoriza, Manuela Cerdán-Calero, M Teresa Donato, Agustín Lahoz
Phospholipidosis and steatosis are two toxic effects, which course with overaccumulation of different classes of lipids in the liver. MS-based lipidomics has become a powerful tool for the comprehensive determination of lipids. LC-MS lipid profiling of HepG2 cells is proposed as an in vitro assay to study and anticipate phospholipidosis and steatosis. Cells with and without pre-incubation with a mixture of free fatty acids (FFA) (i.e., oleic and palmitic) were exposed to a set of well-known steatogenic and phospholipidogenic compounds...
May 17, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28511392/the-diagnostic-value-of-urine-lipoarabinomannan-lam-antigen-in-childhood-tuberculosis
#8
Agustin Iskandar, Erlin Nursiloningrum, Maimun Zulhaidah Arthamin, Ery Olivianto, Mas Slamet Chandrakusuma
INTRODUCTION: Diagnosis of Tuberculosis (TB) in children is difficult because the clinical presentation is not specific, the chest X-ray interpretation has low accuracy and sputum sample is difficult to obtain. Antigen detection test such as rapid urine LAM is a non-invasive alternative for diagnosing TB . Lipoarabinomannan (LAM) is the main component of M.tuberculosis cell wall. AIM: To determine the diagnostic value of urinary LAM antigen for diagnosis of childhood TB...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28511347/mitochondrial-complex-i-deactivation-is-related-to-superoxide-production-in-acute-hypoxia
#9
Pablo Hernansanz-Agustín, Elena Ramos, Elisa Navarro, Esther Parada, Nuria Sánchez-López, Laura Peláez-Aguado, J Daniel Cabrera-García, Daniel Tello, Izaskun Buendia, Anabel Marina, Javier Egea, Manuela G López, Anna Bogdanova, Antonio Martínez-Ruiz
Mitochondria use oxygen as the final acceptor of the respiratory chain, but its incomplete reduction can also produce reactive oxygen species (ROS), especially superoxide. Acute hypoxia produces a superoxide burst in different cell types, but the triggering mechanism is still unknown. Herein, we show that complex I is involved in this superoxide burst under acute hypoxia in endothelial cells. We have also studied the possible mechanisms by which complex I could be involved in this burst, discarding reverse electron transport in complex I and the implication of PTEN-induced putative kinase 1 (PINK1)...
April 21, 2017: Redox Biology
https://www.readbyqxmd.com/read/28506206/females-of-a-gift-giving-spider-do-not-trade-sex-for-food-gifts-a-consequence-of-male-deception
#10
Irene Pandulli-Alonso, Agustín Quaglia, Maria J Albo
BACKGROUND: Polyandry is commonly maintained by direct benefits in gift-giving species, so females may remate as an adaptive foraging strategy. However, the assumption of a direct benefit fades in mating systems where male gift-giving behaviour has evolved from offering nutritive to worthless (non-nutritive) items. In the spider Paratrechalea ornata, 70% of gifts in nature are worthless. We therefore predicted female receptivity to be independent of hunger in this species. We exposed poorly-fed and well-fed females to multiple males offering nutritive gifts and well-fed females to males offering worthless gifts...
May 15, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28505016/the-contemporary-microbiology-of-osteoarticular-infections-in-young-children
#11
Rosa Alcobendas, Sara Murias, Agustín Remesal, Cristina Calvo
No abstract text is available yet for this article.
June 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28489866/magmatic-evolution-of-panama-canal-volcanic-rocks-a-record-of-arc-processes-and-tectonic-change
#12
David W Farris, Agustin Cardona, Camilo Montes, David Foster, Carlos Jaramillo
Volcanic rocks along the Panama Canal present a world-class opportunity to examine the relationship between arc magmatism, tectonic forcing, wet and dry magmas, and volcanic structures. Major and trace element geochemistry of Canal volcanic rocks indicate a significant petrologic transition at 21-25 Ma. Oligocene Bas Obispo Fm. rocks have large negative Nb-Ta anomalies, low HREE, fluid mobile element enrichments, a THI of 0.88, and a H2Ocalc of >3 wt. %. In contrast, the Miocene Pedro Miguel and Late Basalt Fm...
2017: PloS One
https://www.readbyqxmd.com/read/28484956/pesticide-survey-in-water-and-suspended-solids-from-the-uruguay-river-basin-argentina
#13
Celia Williman, Martín S Munitz, María I T Montti, María B Medina, Agustín F Navarro, Alicia E Ronco
The Uruguay River is receptor of pollutants, such as pesticides, from agriculture activities along its course. The present study reports concentration levels of organochlorinate, organophosphorus, and other pesticides in water and suspended solids in nine sampling sites of the Uruguay River. Data analyses included principal component analysis (PCA) to assess differences between sampling sites contamination. Most of the tested pesticides were ubiquitous due to the widely use in the chemical control of pests implemented in the region...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28483052/loss-of-type-iv-glandular-trichomes-is-a-heterochronic-trait-in-tomato-and-can-be-reverted-by-promoting-juvenility
#14
Eloisa Vendemiatti, Agustin Zsögön, Geraldo Felipe Ferreira E Silva, Frederico Almeida de Jesus, Lucas Cutri, Cassia Regina Fernandes Figueiredo, Francisco André Ossamu Tanaka, Fábio Tebaldi Silveira Nogueira, Lázaro Eustáquio Pereira Peres
Glandular trichomes are structures with widespread distribution and deep ecological significance. In the Solanum genus, type-IV glandular trichomes provide resistance to insect pests. The occurrence of these structures is, however, poorly described and controversial in cultivated tomato (Solanum lycopersicum). Optical and scanning electron microscopy were used to screen a series of well-known commercial tomato cultivars, revealing the presence of type-IV trichomes on embryonic (cotyledons) and juvenile leaves...
June 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28474397/thymol-feed-supplementation-in-quail-alters-the-percentages-of-nutritionally-relevant-egg-yolk-fatty-acids-effects-throughout-incubation
#15
Maria E Fernandez, Raul H Marin, Agustin Luna, Maria P Zunino, Maria C Labaque
BACKGROUND: PUFA are crucial components of the yolk and particularly prone to oxidative damage generating losses of nutrients for embryonic development and influencing the quality of eggs for human consumption. We evaluated whether dietary thymol (a natural antioxidant) is related to changes in quail egg yolk total, triglycerides and phospholipids fatty acid composition (T, TG, PL, respectively) at different stages of embryo development. Thus, female Japanese quail (100d) were assigned to 1 of 2 dietary treatments (12 individuals each): CON (basal diet) or THY (0...
May 5, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28474365/tackling-variability-a-multicenter-study-to-provide-a-gold-standard-network-approach-for-frontotemporal-dementia
#16
Lucas Sedeño, Olivier Piguet, Sofía Abrevaya, Horacio Desmaras, Indira García-Cordero, Sandra Baez, Laura Alethia de la Fuente, Pablo Reyes, Sicong Tu, Sebastian Moguilner, Nicolas Lori, Ramon Landin-Romero, Diana Matallana, Andrea Slachevsky, Teresa Torralva, Dante Chialvo, Fiona Kumfor, Adolfo M García, Facundo Manes, John R Hodges, Agustin Ibanez
Biomarkers represent a critical research area in neurodegeneration disease as they can contribute to studying potential disease-modifying agents, fostering timely therapeutic interventions, and alleviating associated financial costs. Functional connectivity (FC) analysis represents a promising approach to identify early biomarkers in specific diseases. Yet, virtually no study has tested whether potential FC biomarkers prove to be reliable and reproducible across different centers. As such, their implementation remains uncertain due to multiple sources of variability across studies: the numerous international centers capable conducting FC research vary in their scanning equipment and their samples' socio-cultural background, and, more troublingly still, no gold-standard method exists to analyze FC...
May 5, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28474015/highly-thermally-stable-and-robust-enantiopure-zirconium-nnn-scorpionates-for-the-controlled-ring-opening-polymerization-of-rac-lactide
#17
Antonio Otero, Juan Fernández-Baeza, Andrés Garcés, Luis F Sánchez-Barba, Agustín Lara-Sánchez, Jaime Martínez-Ferrer, María P Carrión, Ana M Rodríguez
A series of enantiopure alkoxide and thioalkoxide zirconium derivatives [Zr(ER)3(κ(3)-R,R-fbpza)] (1-6) (E = O, R = CHMe21, CHMeEt 2, CH2SiMe33, 2,6-C6H3Me24, 4-(t)BuPh 5; E = S, R = 4-(t)BuPh 6) has been prepared for use as thermally stable and robust initiators in the ROP of rac-lactide. The compounds were prepared by alcoholysis or thioalcoholysis of the tris(amide) precursor [Zr(NMe2)3(κ(3)-R,R-fbpza)] [R,R-fbpzaH = N-p-fluorophenyl-(1R)-1-[(1R)-6,6-dimethylbicyclo[3.1.1]-2-hepten-2-yl]-2,2-bis(3,5-dimethylpyrazol-1-yl)ethylamine] with ROH and ArEH (E = O, S) in a 1 : 3 molar ratio...
May 5, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28469832/biologically-oriented-preparation-technique-bopt-for-implant-supported-fixed-prostheses
#18
Mª Fernanda Solá-Ruiz, Jaime Del Rio Highsmith, Carlos Labaig-Rueda, Rubén Agustín-Panadero
A patient of 58 years of age without medical problems came to the clinic due to missing teeth in the upper posterior region and to change the partial fixed prosthesis in the upper anterior area. Proposed treatment: surgical phase of three conical shape tapering implants with prosthetic platform in occlusal direction with mechanize collar tissue level with fixtures to place implant-supported metal-ceramic restorations. In the anterior area, a zirconium oxide fixed partial prosthesis was vertical preparation of the tooth's...
April 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28469824/traction-test-of-temporary-dental-cements
#19
Juan-Luis Román-Rodríguez, Diego Millan-Martínez, Antonio Fons-Font, Rubén Agustín-Panadero, Lucía Fernández-Estevan
BACKGROUND: Classic self-curing temporary cements obstruct the translucence of provisional restorations. New dual-cure esthetic temporary cements need investigation and comparison with classic cements to ensure that they are equally retentive and provide adequate translucence. The objective is to analyze by means of traction testing in a in vitro study the retention of five temporary cements. MATERIAL AND METHODS: Ten molars were prepared and ten provisional resin restorations were fabricated using CAD-CAM technology (n=10)...
April 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28467452/prevalence-of-anemia-and-associated-factors-in-children-living-in-urban-and-rural-settings-from-bata-district-equatorial-guinea-2013
#20
Policarpo Ncogo, Maria Romay-Barja, Agustin Benito, Pilar Aparicio, Gloria Nseng, Pedro Berzosa, Maria A Santana-Morales, Matilde Riloha, Basilio Valladares, Zaida Herrador
Anemia in children under 5 years of age is a global public health problem. According to the World Health Organization the current rate of anemia among preschool aged children in Equatorial Guinea is 66%. No information is available above this age. The cross-sectional Prevamal Survey was conducted in 2013 aimed at providing baseline data on malaria prevalence in children aged 2 months-15 years old. Sampling was carried out with the use of a multistage, stratified cluster strategy in the district of Bata, Equatorial Guinea...
2017: PloS One
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