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  • 1
    Publication Date: 2021-05-19
    Description: Las especies Yersinia ruckeri y Edwardsiella sp. son patógenos de importancia económica por la alta morbiletalidad que provocan en la acuicultura. En este trabajo se analiza la frecuencia de aparición y el comportamiento epizootiológico de ambos patógenos en los peces de cultivo en Cuba, en diferentes regiones del país y en sistemas de cultivo extensivo en embalses e intensivo en estanques y jaulas flotantes, del 2006 al 2008. Del total de brotes analizados, estas especies se encontraron en 18 eventos epizoóticos, cuatro en el 2006, 12 en el 2007 y dos en el 2008. Edwardsiella sp. se aisló en 16 de ellos, mientras que Yersinia ruckeri se encontró en nueve. Las especies afectadas fueron Oreochromis sp., Clarias sp. y Micropterus salmoides floridanus. Estos resultados indican que ambos patógenos provocan enfermedadades con importantes pérdidas económicas en Cuba y afectan con más frecuencia a las especies en cultivo intensivo.
    Description: Within Enterobactereaceae family only Yersinia and Edwardsiella genus are considered as fishes pathogens. Yersinia ruckeri and Edwardsiella sp. are the most important pathogens for aquaculture because their high morbility. In this study the frequency of apparition and the epizotiologic behavior of these bacterias in different regions of Cuba and in extensive and intensive culture system during the years 2006-2008 were analized. From the total of the epizootiologic events, these pathogens were found in 18: four in 2006, 12 in 2007 and two in 2008. Edwardsiella species were isolated in 16 and Yersinia ruckeri in nine. The affected species were Oreochromis sp., Clarias sp. and Micropterus salmoides floridanus. These results indicate that both pathogens cause illness with important economic looses in Cuba and that they affect species in intensive culture more frequently.
    Description: Published
    Description: enterobacterias
    Description: Yersinia
    Description: Edwardsiella sp.
    Description: tilapia
    Description: clarias
    Keywords: Aquaculture economics ; Intensive aquaculture ; Fishes ; Morbidity
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed , Article
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  • 2
    Publication Date: 2014-02-14
    Description: Interaction between PARP-1 and HIF-2α in the hypoxic response Oncogene 33, 891 (13 February 2014). doi:10.1038/onc.2013.9 Authors: A Gonzalez-Flores, R Aguilar-Quesada, E Siles, S Pozo, M I Rodríguez-Lara, L López –Jiménez, M López-Rodríguez, A Peralta-Leal, D Villar, D Martín-Oliva, L del Peso, E Berra & F J Oliver
    Keywords: hypoxiaPARP-1HIF-2
    Print ISSN: 0950-9232
    Topics: Medicine
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  • 3
    Publication Date: 2014-01-25
    Description: El estudio de los materiales geológicos y las asociaciones de ostrácodos presentes en un testigo largo obtenido en el sur del Parque Nacional de Doñana (SO de España) permite inferir una evolución paleoambiental desde medios marinos someros (Plioceno Inferior) hasta un lagoon salobre (Pleistoceno Superior-Holoceno) y la implantación de sistemas eólicos (
    Print ISSN: 0367-0449
    Electronic ISSN: 1988-3250
    Topics: Geosciences
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  • 4
    Publication Date: 2014-04-02
    Description: The main roles of the colonic mucosa are the absorption of water and electrolytes and the barrier function that preserves the integrity of the colonic wall. The mediators and mechanisms to accomplish these functions are under continuous investigation, but little attention has been paid to a possible control of colonic motility by the mucosa that would fine tune the relationship between absorption and motility. The purpose of this study was to establish the role of the mucosa in the control of induced colonic contractility. Young ICR-CD1 mice (3–5 mo old) were studied. Isometric tension transducers were used to record contractility in full-thickness (FT) and mucosa-free (MF) strips from proximal colon. Proximal FT strips showed lower KCl- and bethanechol-induced responses than MF strips. The difference was not due to mechanical artefacts since the contractile response of FT strips to electrical field stimulation was around 50% lower than in MF. The inhibitory effects of the mucosa on FT strips were mimicked by immersion of separate strips of mucosa in the organ bath but not by addition of mucosal extract, suggesting gaseous molecules as mediators of this effect. Incubation of MF strips with synthase inhibitors of nitric oxide, carbon monoxide, and hydrogen sulfide abolished the inhibition caused by addition of the mucosal strip, indicating that mucosal gasotransmitters are the mediators of these effects. This suggests that the control of colonic motility exerted by the mucosa could fine tune the balance between transit and absorption.
    Print ISSN: 0193-1857
    Electronic ISSN: 1522-1547
    Topics: Medicine
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