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https://www.readbyqxmd.com/read/28678794/ammonium-tetrathiomolybdate-following-ischemia-reperfusion-injury-chemistry-pharmacology-and-impact-of-a-new-class-of-sulfide-donor-in-preclinical-injury-models
#1
Alex Dyson, Felipe Dal-Pizzol, Giovanni Sabbatini, Anna B Lach, Federica Galfo, Juliano Dos Santos Cardoso, Bruna Pescador Mendonça, Iain Hargreaves, Bernardo Bollen Pinto, Daniel I Bromage, John F Martin, Kevin P Moore, Martin Feelisch, Mervyn Singer
BACKGROUND: Early revascularization of ischemic organs is key to improving outcomes, yet consequent reperfusion injury may be harmful. Reperfusion injury is largely attributed to excess mitochondrial production of reactive oxygen species (ROS). Sulfide inhibits mitochondria and reduces ROS production. Ammonium tetrathiomolybdate (ATTM), a copper chelator, releases sulfide in a controlled and novel manner, and may offer potential therapeutic utility. METHODS AND FINDINGS: In vitro, ATTM releases sulfide in a time-, pH-, temperature-, and thiol-dependent manner...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28647792/regeneration-of-hyaline-cartilage-promoted-by-xenogeneic-mesenchymal-stromal-cells-embedded-within-elastin-like-recombinamer-based-bioactive-hydrogels
#2
David Pescador, Arturo Ibáñez-Fonseca, Fermín Sánchez-Guijo, Jesús G Briñón, Francisco Javier Arias, Sandra Muntión, Cristina Hernández, Alessandra Girotti, Matilde Alonso, María Consuelo Del Cañizo, José Carlos Rodríguez-Cabello, Juan Francisco Blanco
Over the last decades, novel therapeutic tools for osteochondral regeneration have arisen from the combination of mesenchymal stromal cells (MSCs) and highly specialized smart biomaterials, such as hydrogel-forming elastin-like recombinamers (ELRs), which could serve as cell-carriers. Herein, we evaluate the delivery of xenogeneic human MSCs (hMSCs) within an injectable ELR-based hydrogel carrier for osteochondral regeneration in rabbits. First, a critical-size osteochondral defect was created in the femora of the animals and subsequently filled with the ELR-based hydrogel alone or with embedded hMSCs...
August 2017: Journal of Materials Science. Materials in Medicine
https://www.readbyqxmd.com/read/28609952/six-new-species-of-silk-lined-burrow-spider-genus-i-stenoterommata-i-holmberg-1881-araneae-nemesiidae-from-southern-brazil
#3
Rafael P Indicatti, João L Chavari, Maurílio Zucatelli-Júnior, Sylvia M Lucas, Antonio D Brescovit
A new diagnosis for the genus Stenoterommata Holmberg, 1881 is presented and six new species are described from Santa Catarina state, southern Brazil: S. pavesii sp. nov. and S. leticiae sp. nov. from Blumenau and Balneário Camboriú; S. sevegnaniae sp. nov. from Blumenau; S. gugai sp. nov., S. peri sp. nov. and S. pescador sp. nov. from Santa Catarina Island, Florianópolis. New records of S. palmar Goloboff, 1995 from southern Brazil are provided. Information on the natural history and habitat are included for all the species...
April 19, 2017: Zootaxa
https://www.readbyqxmd.com/read/28547207/role-of-out-of-hours-primary-care-service-in-limiting-inappropriate-access-to-emergency-department
#4
Andrea Posocco, Maria Paola Scapinello, Irene De Ronch, Francesco Castrogiovanni, Gianluca Lollo, Guglielmo Sergi, Iginio Tomaselli, Loris Tonon, Marco Solmi, Daniele Pescador, Elena Battistuz, Stefano Traversa, Vincenzo Zambianco, Nicola Veronese
Out of hours (OOH) doctors can have an important gate-keeping role over the access to the emergency department (ED), but the outcome and the quality of their ED referrals have been poorly studied. We aimed to investigate the outcome of patients referred to ED from OOH service and the determinants of admission or short-stay dispositions. We collected retrospectively data about referrals to ED from a local OOH service in the north-east of Italy using the OOH paper register and the ED electronic database, over the period of 01/10/2012 to 31/03/2013...
May 25, 2017: Internal and Emergency Medicine
https://www.readbyqxmd.com/read/28472626/key-role-of-oxidative-stress-in-animal-models-of-aminoglycoside-nephrotoxicity-revealed-by-a-systematic-analysis-of-the-antioxidant-to-nephroprotective-correlation
#5
Alfredo G Casanova, Laura Vicente-Vicente, María Teresa Hernández-Sánchez, Moisés Pescador, Marta Prieto, Carlos Martínez-Salgado, Ana I Morales, Francisco J López-Hernández
The clinical utility of aminoglycoside antibiotics is partly limited by their nephrotoxicity. Co-administration of a variety of candidate nephroprotectants has been tested at the preclinical level. According to a recent meta-analytic study, antioxidants are the only family of compounds with enough preclinical documentation to draw solid conclusions on their class nephroprotective capacity in animal models. In this study a systematic analysis of the relation between the level of antioxidation and the level of nephroprotection was performed...
June 15, 2017: Toxicology
https://www.readbyqxmd.com/read/28258001/experimental-infection-in-gerbils-by-conidiobolus-lamprauges
#6
Isabela de Godoy, Camila Gonçalves de Campos, Caroline Argenta Pescador, João Vitor Amorim Galceran, Stéfhano Luis Cândido, Valéria Dutra, Luciano Nakazato
Conidiobolomycosis is an emerging entomophthoramycosis caused by fungi Conidiobolus spp. Animal models are essential for the study of infectious disease in various areas such as pathogenesis, diagnostic methods, treatment and prevention. There is not currently an animal model for conidiobolomycosis. The aim of this study was to create an experimental infection protocol for Conidiobolus lamprauges in gerbils (Meriones unguiculatus). The study animals were randomly divided into four groups of four animals: immunosuppressed with cyclophosphamide (CPA) and infected with C...
April 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27940129/a-systematic-meta-analysis-on-the-efficacy-of-pre-clinically-tested-nephroprotectants-at-preventing-aminoglycoside-nephrotoxicity
#7
REVIEW
Laura Vicente-Vicente, Alfredo G Casanova, María Teresa Hernández-Sánchez, Moisés Pescador, Francisco J López-Hernández, Ana Isabel Morales
Nephrotoxicity limits the use of aminoglycoside antibiotics. Kidney damage is produced mainly in the renal tubule due to an inflammatory and oxidative process. At preclinical level, many drugs and natural products have been tested as prospective protectors of aminoglycoside nephrotoxicity. The main objective of this work was to make a systematic literature review of preclinical studies about aminoglycoside nephrotoxicity protection and a statistical analysis based on the meta-analysis methodology. Studies published up to January 2016 were identified...
February 15, 2017: Toxicology
https://www.readbyqxmd.com/read/27929463/synthesis-of-hierarchical-zno-cdsse-heterostructure-nanotrees
#8
Zhengxin Li, Jesus Nieto-Pescador, Alexander J Carson, Jolie C Blake, Lars Gundlach
A two-step chemical vapor deposition procedure is here employed to prepare tree-like hierarchical ZnO/CdSSe hetero-nanostructures. The structures are composed of CdSSe branches grown on ZnO nanowires that are vertically aligned on a transparent sapphire substrate. The morphology was measured via scanning electron microscopy. The crystal structure was determined by X-ray powder diffraction analysis. Both the ZnO stem and CdSSe branches have a predominantly wurtzite crystal structure. The mole ratio of S and Se in the CdSSe branches was measured by energy dispersive X-ray spectroscopy...
November 29, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27915439/presence-of-ureaplasma-diversum-in-the-genital-tracts-of-female-dairy-cattle-in-mato-grosso-state-brazil
#9
Jaqueline B Azevedo, Gustavo S Silva, Priscylla S Rocha, Letícia C Pitchenin, Valéria Dutra, Luciano Nakazato, Anderson Castro Soares de Oliveira, Caroline A Pescador
Ureaplasma diversum infection in bovine females may result in various reproductive problems, including granular vulvovaginitis, abortion, weak calves, salpingitis, and spontaneous abortion. The presence of U. diversum in a dairy bovine population from midwestern Brazil has not been established. The aim of this study was to determine whether U. diversum was present in dairy cattle from midwestern Brazil using polymerase chain reaction (PCR). Vulvovaginal mucus was analyzed from 203 cows located in six municipalities in the north region of Mato Grosso State, Brazil...
February 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/27846359/-o-arm-navigation-in-spinal-surgery-for-complex-cases
#10
D Pescador, D Rendón, J Blanco, R González, J M Martín, C Cano-Gala, D Pescador
The intraoperative computer-assisted navigation technique has evolved and changed the way we approach certain complex cases in the vertebral pathologies. The main advantages of this technique are that it increases the accuracy of the procedure, reduces its morbidity and invasiveness, diminishes the radiation dose and improves surgical protocols. In addition to the transpedicular fixation, the navigation system is useful in a high variety of pathologies such as spinal decompression or tumor resection. In the present study, we show several cases where navigation is used intraoperatively in different pathologies and their clinical outcomes...
March 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/27686967/rapamycin-negatively-impacts-insulin-signaling-glucose-uptake-and-uncoupling-protein-1-in-brown-adipocytes
#11
Ester García-Casarrubios, Carlos de Moura, Ana I Arroba, Nuria Pescador, María Calderon-Dominguez, Laura Garcia, Laura Herrero, Dolors Serra, Susana Cadenas, Flavio Reis, Eugenia Carvalho, Maria Jesus Obregon, Ángela M Valverde
New onset diabetes after transplantation (NODAT) is a metabolic disorder that affects 40% of patients on immunosuppressive agent (IA) treatment, such as rapamycin (also known as sirolimus). IAs negatively modulate insulin action in peripheral tissues including skeletal muscle, liver and white fat. However, the effects of IAs on insulin sensitivity and thermogenesis in brown adipose tissue (BAT) have not been investigated. We have analyzed the impact of rapamycin on insulin signaling, thermogenic gene-expression and mitochondrial respiration in BAT...
December 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27642606/networks-models-of-actin-dynamics-during-spermatozoa-postejaculatory-life-a-comparison-among-human-made-and-text-mining-based-models
#12
Nicola Bernabò, Alessandra Ordinelli, Marina Ramal Sanchez, Mauro Mattioli, Barbara Barboni
Here we realized a networks-based model representing the process of actin remodelling that occurs during the acquisition of fertilizing ability of human spermatozoa (HumanMade_ActinSpermNetwork, HM_ASN). Then, we compared it with the networks provided by two different text mining tools: Agilent Literature Search (ALS) and PESCADOR. As a reference, we used the data from the online repository Kyoto Encyclopaedia of Genes and Genomes (KEGG), referred to the actin dynamics in a more general biological context. We found that HM_ALS and the networks from KEGG data shared the same scale-free topology following the Barabasi-Albert model, thus suggesting that the information is spread within the network quickly and efficiently...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27637760/comparative-analysis-of-the-immunomodulatory-capacities-of-human-bone-marrow-and-adipose-tissue-derived-mesenchymal-stromal-cells-from-the-same-donor
#13
COMPARATIVE STUDY
Jaris Valencia, Belén Blanco, Rosa Yáñez, Miriam Vázquez, Carmen Herrero Sánchez, María Fernández-García, Concepción Rodríguez Serrano, David Pescador, Juan F Blanco, Miriam Hernando-Rodríguez, Fermín Sánchez-Guijo, María Luisa Lamana, José Carlos Segovia, Ángeles Vicente, Consuelo Del Cañizo, Agustín G Zapata
BACKGROUND AIMS: The immunomodulatory properties of mesenchymal stromal cells (MSCs), together with their tissue regenerative potential, make them interesting candidates for clinical application. METHODS: In the current study, we analyzed the in vitro immunomodulatory effects of MSCs derived from bone marrow (BM-MSCs) and from adipose tissue (AT-MSCs) obtained from the same donor on both innate and acquired immunity cells. BM-MSCs and AT-MSCs were expanded to fourth or fifth passage and co-cultured with T cells, monocytes or natural killer (NK) cells isolated from human peripheral blood and stimulated in vitro...
October 2016: Cytotherapy
https://www.readbyqxmd.com/read/27462351/filaggrin-gene-mutations-and-new-snps-in-asthmatic-patients-a-cross-sectional-study-in-a-spanish-population
#14
José Luis Cubero, María Isidoro-García, Nieves Segura, David Benito Pescador, Catalina Sanz, Félix Lorente, Ignacio Dávila, Carlos Colás
BACKGROUND: Several null-mutations in the FLG gene that produce a decrease or absence of filaggrin in the skin and predispose to atopic dermatitis and ichthyosis vulgaris have been described. The relationship with asthma is less clear and may be due to the influence of atopy in patients with associated asthma. METHODS: Four hundred individuals were included, 300 patients diagnosed with asthma divided into two groups according to their phenotype (allergic and non-allergic asthma) and 100 strictly characterized controls...
2016: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/27394219/species-diversity-of-fiddler-crabs-genus-uca-leach-1814-crustacea-ocypodidae-from-taiwan-and-adjacent-islands-with-notes-on-the-japanese-species
#15
Hsi-Te Shih, Jung-Hsiang Lee, Ping-Ho Ho, Hung-Chang Liu, Chia-Hsiang Wang, Hiroshi Suzuki, Shao-Jyun Teng
The fiddler crabs, genus Uca Leach, 1814 (Decapoda, Ocypodidae) of Taiwan, including the offshore islands of Penghu (Pescadores), Kinmen (Quemoy), Matsu (Matzu), and Dongsha (Pratas), are revised, with the recognition of five subgenera and 15 species, viz. Uca (Austruca) Bott, 1973: U. lactea (De Haan, 1835), U. perplexa (H. Milne Edwards, 1837), U. triangularis (A. Milne-Edwards, 1873); U. (Gelasimus) Latreille, 1817: U. borealis Crane, 1975, U. jocelynae Shih, Naruse & Ng, 2010, U. tetragonon (Herbst, 1790), U...
February 18, 2016: Zootaxa
https://www.readbyqxmd.com/read/27334828/hemostatic-assessment-of-dogs-associated-with-hepatic-parasite-load-of-leishmania-infantum-chagasi
#16
Mariana de Medeiros Torres, Arleana do Bom Parto Ferreira de Almeida, Daphine Ariadne Jesus de Paula, Adriane Jorge Mendonça, Luciano Nakazato, Caroline Argenta Pescador, Valéria Régia Franco Sousa
Leishmania infantum chagasi liver parasite load was compared to hemostatic abnormalities, as well as to clinical, laboratorial, and histopathological findings in dogs with visceral leishmaniasis. The liver parasite load of 30 dogs L. infantum chagasi naturally-infected was evaluated by quantitative real- time PCR and the results were compared with serum biochemistry and primary and secondary hemostasis findings. Moreover, hepatic histological lesions were described in these dogs. Prolonged bleeding time, prothrombin time (PT), and activated partial thromboplastin time (APTT), were observed in the group with visceral leishmaniasis...
June 14, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27304522/hemostatic-assessment-of-dogs-associated-with-hepatic-parasite-load-of-leishmania-infantum-chagasi
#17
Mariana de Medeiros Torres, Arleana do Bom Parto Ferreira de Almeida, Daphine Ariadne Jesus de Paula, Adriane Jorge Mendonça, Luciano Nakazato, Caroline Argenta Pescador, Valéria Régia Franco Sousa
Leishmania infantum chagasi liver parasite load was compared to hemostatic abnormalities, as well as to clinical, laboratorial, and histopathological findings in dogs with visceral leishmaniasis. The liver parasite load of 30 dogs L. infantum chagasi naturally-infected was evaluated by quantitative real- time PCR and the results were compared with serum biochemistry and primary and secondary hemostasis findings. Moreover, hepatic histological lesions were described in these dogs. Prolonged bleeding time, prothrombin time (PT), and activated partial thromboplastin time (APTT), were observed in the group with visceral leishmaniasis...
June 14, 2016: Revista Brasileira de Parasitologia Veterinária, Brazilian Journal of Veterinary Parasitology
https://www.readbyqxmd.com/read/27244389/ultraviolet-femtosecond-kerr-gated-wide-field-fluorescence-microscopy
#18
Jolie C Blake, Jesus Nieto-Pescador, Zhengxin Li, Lars Gundlach
A Kerr-gated microscope capable of imaging ultraviolet luminescence with femtosecond time resolution has been developed. The system allows the spatial, spectral, and temporal measurement of UV-emitting samples. The instrumentation was optimized for emission collection in the UV, resulting in sub 90 fs time resolution of gated signals. ZnO nanowires were used to demonstrate the performance of the instrument. The evolution of the emission from a single nanowire was tracked via ultrafast transient spectroscopy and through sequential imaging...
June 1, 2016: Optics Letters
https://www.readbyqxmd.com/read/26952144/bcmimp1-a-botrytis-cinerea-gene-transiently-expressed-in-planta-encodes-a-mitochondrial-protein
#19
David Benito-Pescador, Daniela Santander, M Arranz, José M Díaz-Mínguez, Arturo P Eslava, Jan A L van Kan, Ernesto P Benito
Botrytis cinerea is a widespread necrotrophic fungus which infects more than 200 plant species. In an attempt to characterize the physiological status of the fungus in planta and to identify genetic factors contributing to its ability to infect the host cells, a differential gene expression analysis during the interaction B. cinerea-tomato was carried out. Gene Bcmimp1 codes for a mRNA detected by differential display in the course of this analysis. During the interaction with the host, it shows a transient expression pattern with maximal expression levels during the colonization and maceration of the infected tissues...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/26941761/summer-freezing-resistance-a-critical-filter-for-plant-community-assemblies-in-mediterranean-high-mountains
#20
David S Pescador, Ángela Sierra-Almeida, Pablo J Torres, Adrián Escudero
Assessing freezing community response and whether freezing resistance is related to other functional traits is essential for understanding alpine community assemblages, particularly in Mediterranean environments where plants are exposed to freezing temperatures and summer droughts. Thus, we characterized the leaf freezing resistance of 42 plant species in 38 plots at Sierra de Guadarrama (Spain) by measuring their ice nucleation temperature, freezing point (FP), and low-temperature damage (LT50), as well as determining their freezing resistance mechanisms (i...
2016: Frontiers in Plant Science
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