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Andreu Colom‐Cadena Ignasi Marco Xavier Fernndez Aguilar Roser Velarde Johan Espunyes Rosa Rosell Santiago Lavín Oscar Cabezn 《Transboundary and Emerging Diseases》2019,66(4):1619-1630
Since 2001, Pyrenean chamois (Rupicapra pyrenaica pyrenaica) populations have been affected by border disease virus (BDV) causing mortalities of more than 80% in some areas. Field studies carried out in France, Andorra, and Spain have shown different epidemiological scenarios in chamois populations. This study was designed to confirm the presence of BDV strains of a high and low virulence in free‐ranging chamois populations from Pyrenees and to understand the implications of these findings to the diverse epidemiological scenarios. An experimental infection of Pyrenean chamois with a high‐virulence (Cadí‐6) and low‐virulence (Freser‐5) BDV strains was performed. Pregnant and non‐pregnant animals with and without antibodies against BDV were included in each group. Cadí‐6 BDV strain was confirmed to be of high virulence for seronegative adults and their foetuses. The antibody negative chamois infected with Freser‐5 BDV strain did not show symptoms, presented less viral distribution and RNA load in tissues than Cadí‐6 group, and cleared the virus from the serum. However, foetuses died before the end of the experiment and RNA virus was detected in sera and tissues although with lower RNA load than the Cadí‐6 group. Chamois from both groups presented lesions in brain but the ones infected with the low‐virulence Freser‐5 BDV strain were mild and most likely transient. In both groups, seropositive pregnant females and all but one of their foetuses did not present viraemia or viral RNA in tissues. The existence of a low‐virulence strain has been confirmed experimentally and related to chamois population infection dynamics in the area where it was isolated. Such strain may persist in the chamois population through PI animals and may induce cross‐protection in chamois against high‐virulence strains. This study demonstrates that viral strain diversity is a significant factor in the heterogeneity of epidemiological scenarios in Pyrenean chamois populations. 相似文献
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Leopoldo Pérez de Isla Raquel Arroyo-Olivares Ovidio Muñiz-Grijalvo José Luis Diaz-Díaz Daniel Zambón Francisco Fuentes Juan F. Sánchez Muñoz-Torrero Juan Diego Mediavilla Aurora González-Estrada Jose Pablo Miramontes-González Raimundo de Andrés Marta Mauri Daniel Mosquera José M. Cepeda Lorena Suárez Miguel Ángel Barba-Romero Rosa Argüeso Pilar Álvarez-Baños Pedro Mata 《Journal of clinical lipidology》2019,13(6):989-996
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Carmen Helena Jacques Lemes Wellington Luiz de Oliveira da Rosa Camila Leal Sonego Bianca Jacques Lemes Rafael Ratto Moraes Adriana Fernandes da Silva 《Wound repair and regeneration》2019,27(1):102-113
Laser therapy could amplify the oral wound healing process by stimulating cell regeneration after injury, attenuating pain, and modulating the immune system. The purpose of this systematic review was to evaluate whether the application of laser therapy improved alveolar healing after tooth extractions. Eight electronic databases were screened: MedLine (PubMed), The Cochrane Library, Web of Science, Scopus, Lilacs, Ibecs, Scielo, and BBO. Three reviewers independently assessed the title and abstracts of potentially relevant studies. Only clinical trials and animal experiments that evaluated the wound healing effect of laser therapy after tooth extraction were included. A total of 16 studies fulfilled all criteria, thus 8 animal experiments and 8 clinical trials were included. Different types of laser were evaluated, such as CO2, GaAlAs, Nd:YAG, Diode Laser, HeNe, and High‐frequency Pulsed Diode Laser. Although HF, Diode and GaAs lasers were able to enhance wound healing process in clinical studies, four trials and one animal experiment showed no improvement in wound healing with laser therapy after tooth extractions. In general, the current available evidence in the literature showed that laser therapy improved the wound healing process, but these findings were limited to the type of laser applied and its specific settings. Further well‐designed and randomized controlled trials are needed to support a benefit effect of using laser therapy after tooth extraction. PROSPERO registration number: CRD42014007509 (2014). 相似文献
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Fiore Manganelli Silvia Parisi Maria Nolano Francesco Miceli Stefano Tozza Chiara Pisciotta Rosa Iodice Vincenzo Provitera Rita Cicatiello Stephan Zuchner Maurizio Taglialatela Tommaso Russo Lucio Santoro 《Journal of the peripheral nervous system : JPNS》2019,24(4):330-339
The development of patient‐specific induced pluripotent stem cells (iPSCs) offered interesting insights in modeling the pathogenesis of Charcot‐Marie‐Tooth (CMT) disease and thus we decided to explore the phenotypes of iPSCs derived from a single CMT patient carrying a mutant ATP1A1 allele (p.Pro600Ala). iPSCs clones generated from CMT and control fibroblasts, were induced to differentiate into neural precursors and then into post‐mitotic neurons. Control iPSCs differentiated into neuronal precursors and then into post‐mitotic neurons within 6‐8 days. On the contrary, the differentiation of CMT iPSCs was clearly defective. Electrophysiological properties confirmed that post‐mitotic neurons were less mature compared to the normal counterpart. The impairment of in vitro differentiation of CMT iPSCs only concerned with the neuronal pathway, because they were able to differentiate into mesendodermal cells and other ectodermal derivatives. ATP1A1 was undetectable in the few neuronal cells derived from CMT iPSCs. ATP1A1 gene mutation (p.Pro600Ala), responsible for a form of axonal CMT disease, is associated in vitro with a dramatic alteration of the differentiation of patient‐derived iPSCs into post‐mitotic neurons. Thus, the defect in neuronal cell development might lead in vivo to a decreased number of mature neurons in ATP1A1‐CMT disease. 相似文献
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de Souza Gabriel Hernandez Machado Pandolfo Mariana Travi Bortoluzzi Eduardo Antunes da Silveira Teixeira Cleonice Rossetto Hebert Luís da Rosa Amanda Freitas Machado Renata Gondo da Fonseca Roberti Garcia Lucas 《Odontology / the Society of the Nippon Dental University》2022,110(3):535-544
Odontology - The purpose of this study was to investigate whether the root perforation repair with mineral aggregate-based cements affects the retention of customized fiberglass posts to bovine... 相似文献
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