147 research outputs found
Protected natural areas on the Argentine Littoral Region: a comparative analysis of current regulations
En este artículo intentamos reponer el estado de situación de las principales regulaciones provinciales en parte de la región del litoral argentino. En particular, se analizan los casos de Santa Fe, Entre Ríos, Corrientes y Misiones en materia de áreas naturales protegidas como estrategia para la tutela de la biodiversidad. Para ello se presentan, en cuatro apartados que poseen una estructura simétrica, los siguientes temas: 1) Una breve presentación de los principales ecosistemas que posee cada provincia, 2) Un análisis sobre el contenido constitucional que puede ser asociado a este tema conforme las cartas magnas vigentes en cada territorio, 3) Una presentación de las normas provinciales que regulan los sistemas de áreas naturales protegidas, 4) Una breve aproximación al resultado protectorio en términos territoriales. Finalmente, se plantean una serie de interrogantes en relación a algunas agendas abiertas y posibles desafíos para repensar esta estrategia de tutela desde recientes debates al interior del campo jurídico contemporáneo.This article aims to review the state of the art of the main provincial regulations in part of the Argentinean littoral region. In particular, the cases of Santa Fe, Entre Ríos, Corrientes and Misiones are analyzed with regard to natural protected areas as a strategy for the protection of biodiversity. The following topics are presented in four symmetrically structured sections: 1) a brief presentation of the main ecosystems in each province, 2) an analysis of the constitutional content that can be associated with this issue in accordance with the constitution of each territory, 3) a presentation of the provincial norms that regulate the systems of natural protected areas, 4) a brief approximation of the protective result in territorial terms. Finally, a series of questions are posed in relation to some open agendas and possible challenges to rethink this protection strategy from recent debates in the contemporary legal field.Facultad de Ciencias Jurídicas y Sociale
Kinetics of Plasma Cytokines, Angiopoietin-2, and C-Reactive Protein in Dogs With Gastric Dilatation Volvulus.
Background: The degree of systemic inflammation, reperfusion injury and endothelial activation are potentially important determinants of clinical outcomes in dogs with gastric dilatation volvulus (GDV). Objective: To evaluate plasma concentrations and kinetics of inflammatory markers in dogs with GDV over a time frame of 48 h, and to compare to healthy dogs. Design and Setting: Prospective, observational cohort study in client-owned dogs with GDV. Materials and Methods: Fifteen dogs with GDV and 9 healthy control dogs were enrolled. Plasma concentrations of interleukin (IL)-6, IL-7, IL-8, IL-10, IL-15, IL-18, interferon gamma (IFN-γ), keratinocyte chemotactic-like, monocyte chemotactic protein (MCP)-1, Angiopoietin (Ang)-2, and C-reactive protein (CRP) were measured at admission (prior any therapeutic intervention, (T0), immediately after surgery (T1), 24 ± 4 h (T24), and 48 ± 4 h (T48) post-surgery. Cytokines were measured using multiplex magnetic bead assay. Plasma Ang-2 was measured with a commercial human ELISA test kit validated for dogs. Results: Dogs with GDV had significantly higher plasma concentrations of IFN-γ and IL-10 compared to healthy control dogs at all time points. Concentrations of IL-6 were significantly higher at T1 and T24, concentrations of MCP-1 at T24, and concentrations of CRP at T24 and T48. A significant increase between T0 and T1 was found for IL-6, IL-10, and CRP, between T1 and T24 for IL-8, IFN-γ, MCP-1, and CRP, and between T24 and T48 for IL-15, Ang-2, and CRP. A significant decrease between T0 and T1 was found for IL-7, IL-8, IL-15, IL-18, and Ang-2; between T1 and T24 for IL-6 and KC-like; and between T24 and T48 for IL-6. Conclusion: In GDV dogs, a mild pro-inflammatory reaction was present at admission, which peaked immediately after and up to 24 h post-surgery, mainly represented by IL-6, IFN-γ, MCP-1, and CRP, and which decreased at T48. In addition, the anti-inflammatory IL-10 was increased in GDV dogs at all time points
Comparison of Jugular vs. Saphenous Blood Samples, Intrarater and In-Between Device Reliability of Clinically Used ROTEM S Parameters in Dogs
Rotational Thromboelastometry (ROTEM) allows for the global assessment of hemostasis in whole blood samples. Preanalytical and analytical factors may influence test results, and data about the reliability and reproducibility of lyophilized ROTEM tests are scarce. Therefore, the objective of this study was to evaluate the influence of blood collection site on ROTEM S parameters and to assess intrarater and in-between device variability. A total of thirty, healthy, staff-owned dogs were included. Blood collection and ROTEM analysis were performed by trained staff according to a standardized protocol. Extrinsically activated (tissue factor; Ex-TEM S), with the addition of cytochalasin for platelet inhibition (Fib-TEM S), and intrinsically activated (In-TEM) analyses were performed. Analysis of our data showed significant variability for various Ex-TEM S and Fib-TEM S parameters from different collection sites and intrarater and in-between device measurements. We conclude that serial monitoring with ROTEM should be performed on the same device, with blood always taken from the same collection site using a standardized blood sampling technique. While In-TEM S, apart from maximum lysis, showed very stable and reliable results, we suggest interpreting especially clotting and clot formation parameters from Ex-TEM S and Fib-TEM S tests with caution and using duplicate measurements to detect outliers and to prevent initiation of incorrect therapies
Comparison of Jugular vs. Saphenous Blood Samples, Intrarater and In-Between Device Reliability of Clinically Used ROTEM S Parameters in Dogs.
Rotational Thromboelastometry (ROTEM) allows for the global assessment of hemostasis in whole blood samples. Preanalytical and analytical factors may influence test results, and data about the reliability and reproducibility of lyophilized ROTEM tests are scarce. Therefore, the objective of this study was to evaluate the influence of blood collection site on ROTEM S parameters and to assess intrarater and in-between device variability. A total of thirty, healthy, staff-owned dogs were included. Blood collection and ROTEM analysis were performed by trained staff according to a standardized protocol. Extrinsically activated (tissue factor; Ex-TEM S), with the addition of cytochalasin for platelet inhibition (Fib-TEM S), and intrinsically activated (In-TEM) analyses were performed. Analysis of our data showed significant variability for various Ex-TEM S and Fib-TEM S parameters from different collection sites and intrarater and in-between device measurements. We conclude that serial monitoring with ROTEM should be performed on the same device, with blood always taken from the same collection site using a standardized blood sampling technique. While In-TEM S, apart from maximum lysis, showed very stable and reliable results, we suggest interpreting especially clotting and clot formation parameters from Ex-TEM S and Fib-TEM S tests with caution and using duplicate measurements to detect outliers and to prevent initiation of incorrect therapies
Regulation of activity of purified guanylate cyclase from liver that is unresponsive to nitric oxide
Evolutionary history and species delimitations: a case study of the hazel dormouse, Muscardinus avellanarius
Robust identification of species and significant evolutionary units (ESUs) is essential to implement appropriate conservation strategies for endangered species. However, definitions of species or ESUs are numerous and
sometimes controversial, which might lead to biased conclusions, with serious consequences for the management of
endangered species. The hazel dormouse, an arboreal rodent of conservation concern throughout Europe is an
ideal model species to investigate the relevance of species identification for conservation purposes. This species is a
member of the Gliridae family, which is protected in Europe and seriously threatened in the northern part of its
range. We assessed the extent of genetic subdivision in the hazel dormouse by sequencing one mitochondrial gene
(cytb) and two nuclear genes (BFIBR, APOB) and genotyping 10 autosomal microsatellites. These data were analysed using a combination of phylogenetic analyses and species delimitation methods. Multilocus analyses revealed
the presence of two genetically distinct lineages (approximately 11 % cytb genetic divergence, no nuclear alleles
shared) for the hazel dormouse in Europe, which presumably diverged during the Late Miocene. The phylogenetic
patterns suggests that Muscardinus avellanarius populations could be split into two cryptic species respectively
distributed in western and central-eastern Europe and Anatolia. However, the comparison of several species
definitions and methods estimated the number of species between 1 and 10. Our results revealed the difficulty in
choosing and applying an appropriate criterion and markers to identify species and highlight the fact that consensus
guidelines are essential for species delimitation in the future. In addition, this study contributes to a better
knowledge about the evolutionary history of the species
Acute-phase reactants after paediatric cardiac arrest. Procalcitonin as marker of immediate outcome
<p>Abstract</p> <p>Objective</p> <p>Procalcitonin (PCT) and C reactive protein (CRP) have been used as infection parameters. PCT increase correlates with the infection's severity, course, and mortality. Post-cardiocirculatory arrest syndrome may be related to an early systemic inflammatory response, and may possibly be associated with an endotoxin tolerance. Our objective was to report the time profile of PCT and CRP levels after paediatric cardiac arrest and to assess if they could be use as markers of immediate survival.</p> <p>Materials and methods</p> <p>A retrospective observational study set in an eight-bed PICU of a university hospital was performed during a period of two years. Eleven children younger than 14 years were admitted in the PICU after a cardiac arrest. PCT and CRP plasma concentrations were measured within the first 12 and 24 hours of admission.</p> <p>Results</p> <p>In survivors, PCT values increased 12 hours after cardiac arrest without further increase between 12 and 24 hours. In non survivors, PCT values increased 12 hours after cardiac arrest with further increase between 12 and 24 hours. Median PCT values (range) at 24 hours after cardiac arrest were 22.7 ng/mL (0.2 – 41.0) in survivors vs. 205.5 ng/mL (116.6 – 600.0) in non survivors (p < 0.05). CRP levels were elevated in all patients, survivors and non-survivors, at 12 and 24 hours without differences between both groups.</p> <p>Conclusion</p> <p>Measurement of PCT during the first 24 hours after paediatric cardiac arrest could serve as marker of mortality.</p
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