363 research outputs found

    Concurrent gastrointestinal signs in hypothyroid dogs

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    Few observations about prevalence and features of gastrointestinal (GI) signs in hypothyroid dogs (hypoT-dogs) are available.The study aimed (1) to evaluate concurrent GI signs in hypoT-dogs; (2) to analyze clinico-pathological and ultrasound features ofhypoT-dogs with and w/out GI signs, and (3) to analyzed GI signs follow-up after thyroid hormone replacement therapy (THRT).Medical records of hypoT-dogs from two Veterinary Teaching Hospitals were retrospectively reviewed. Dogs were classified ashypothyroid if TT4 or fT4 were low/normal with normal/high TSH or inadequate TSH-stimulation test response. Clinical history, GIsigns (vomiting, diarrhea, constipation), hematobiochemical parameters and abdominal ultrasound were collected. HypoT-dogs were divided based on the presence of at least one GI signs (GI group and not-GI group). Twenty-seven GI dogs had 3-4 weeks recheck from the beginning of THRT and information on GI signs were recorded. A total of 166 dogs were included (GI group, n=45, 27%; not-GI group, n=121, 73%). GI dogs showed nausea (42%), vomiting(40%), constipation (22%), large bowel diarrhea (40%), small bowel diarrhea (4%) and aspecific diarrhea (40%). No significant difference between GI and not-GI groups on hematobiochemical parameters was found. GI group had significantly higherfrequency (20%) of large intestine involvement than not-GI group at the ultrasound (P = 0.03; Chi-square test). Twenty-one out of27 GI dogs had a resolution of GI signs at recheck (P = 0.0001; McNemar test). Most of hypoT-dogs had concurrent GI signs mainly due to large bowel involvement. After THRT beginning the concurrent GI signs in hypoT-dogs seem to be reduce

    Comparing Experiences of Constitutional Reforms to Enshrine the Right to Water in Brazil, Colombia, and Peru: Opportunities and Limitations

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    In this paper we compare recent efforts towards the constitutionalization of the right to water in Brazil, Colombia, and Peru to understand the opportunities and limitations related to the attempts to enhance access to piped water to the highest normative level. Peru passed a constitutional amendment in 2017 while Brazil and Colombia have seen much right-to-water activism but have not succeeded in passing such reforms. We explore the role of the existing domestic legal frameworks on drinkable water provision and water management towards the approval of constitutional amendments. We find that all three countries have specialized laws, water governing institutions, and constitutional jurisprudence connecting access to water with rights, but the legal opportunity structures to enforce socio-economic rights vary; they are stronger in Colombia and Brazil, and weaker in Peru. We argue that legal opportunity structures build legal environments that influence constitutional reform success. Legal opportunity structures act as incentives both for social movements to push for reforms and for actors with legislative power to accept or reject them. Our findings also show that in some contexts political cost is a key element of constitutional reforms that enshrine the right to water; therefore, this is an element that should be considered when analyzing these processes.publishedVersio

    Analysis of cerebrospinal fluid from cattle with central nervous system disorders after storage for 24 hours with autologous serum

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    BACKGROUND: We compared the changes in cell morphology, total and differential cell counts between cerebrospinal fluid (CSF) samples analyzed within an hour of collection (fresh sample) and after the addition of autologous serum and storage for 24 h (stored sample) in 27 cattle with central nervous system disorders. RESULTS: There was a positive linear correlation between total and differential cell counts in the fresh and the stored samples. Cell morphology was preserved in all stored samples, except for increased vacuolization of mononuclear cells and cleaved nuclei of some small mononuclear cells. In the stored CSF samples, the total nucleated cell count and monocyte percentage were decreased (P = 0.01; P = 0.03), while the lymphocyte percentage was increased (P = 0.04). Mononuclear pleocytosis diagnosed in 20 fresh samples was cytologically confirmed in 12 of the 20 stored samples. In the remaining eight stored samples, the number of total nucleated cells was within the normal range. Neutrophilic pleocytosis was confirmed in all seven stored samples. The overall agreement rate between cytologic interpretation of the fresh and the stored CSF samples was 70 % (100 % for neutrophilic pleocytosis and 60 % for mononuclear pleocytosis). CONCLUSIONS: Adding 11 % of autologous serum to CSF samples might allow delayed analysis with a good agreement rate for CSF cytological interpretation. Caution is nonetheless warranted, as animal age, anamnesis, and neurological presentation need to be considered when interpreting stored CSF without pleocytosis. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s12917-015-0502-x) contains supplementary material, which is available to authorized users

    Stage 1-biomarkers of kidney injury in dogs undergoing constant rate infusion of hydroxyethyl starch 130/0.4

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    In veterinary medicine, investigations relating the effects of hydroxyethyl starch (HES) on renal function report contrasting results. This study aimed to assess the changes in the selected biomarkers of kidney injury in dogs after the administration of HES 130/0.4 as a constant rate infusion (CRI) for 24 h. Ten adult client-owned dogs with hypoalbuminemia (albumin < 2 g/dL) and ongoing fluid losses were included. Enrolled dogs received intravenous fluid therapy with crystalloids and a CRI of HES 130/0.4 at a dose of 2 mL/kg/h for 24 h. Serum creatinine (sCr), fractional excretion (FE) of electrolytes, urinary protein to creatinine ratio (UPC), urinary albumin to creatinine ratio (UAC), SDS-page, and urinary neutrophil gelatinase-associated lipocalin (uNGAL) were measured at the baseline before HES infusion, and after 24 h (T24) and 48 h (T48) from the baseline. No statistically significant difference was found between the baseline value vs. T24 and the baseline vs. T48 for sCr, UAC, UPC, FE of sodium, chloride and calcium, and uNGAL. A significant increase in FEK (p = 0.04) was noticed between the baseline and T48. In this study sample of hypoalbuminemic dogs, HES 130/0.4 at the dose and rate of infusion applied did not cause any significant changes in the investigated biomarkers of kidney injury

    Very long optical path-length from a compact multi-pass cell

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    The multiple-pass optical cell is an important tool for laser absorption spectroscopy and its many applications. For most practical applications, such as trace-gas detection, a compact and robust design is essential. Here we report an investigation into a multi-pass cell design based on a pair of cylindrical mirrors, with a particular focus on achieving very long optical paths. We demonstrate a path-length of 50.31 m in a cell with 40 mm diameter mirrors spaced 88.9 mm apart - a 3-fold increase over the previously reported longest path-length obtained with this type of cell configuration. We characterize the mechanical stability of the cell and describe the practical conditions necessary to achieve very long path-lengths

    SISTEMA DE GESTIÓN AMBIENTAL PARA EL PROCESO PRODUCTIVO DE LA EMPRESA PASTAS CAPRI C.A

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    This study is framed in the form of special project supported by field research was descriptive in nature and intended to implement Environmental Management System based on ISO 14001:2004 / Cor.1 : 2009, Clause 4.1 General Requirements , 4.2 Environmental Policy 4.3 Planning 4.4 Implementation and Operation in the production process line Short Pasta company " PASTA CAPRI " C. A. The research was conducted in three phases : the first phase is diagnosed the need for implementation of the environmental management system , for which a checklist based on the clauses of ISO 14001 dichotomous questions was developed , validated by experts and applied to the study subjects , which were a total of five (5) participants. In the second phase the environmental management system was designed in response to the steps outlined in ISO 14001:2004 / Cor.1: 2009 standard and finally the third phase corresponded to the operational and technical validation of the environmental management system, for it a tool to study subjects was applied to meet compliance with the ISO 14001:2004 should / Cor.1: 2009 standard. The environmental management system allows the company to optimize its production process, improve the use of resources, improve efficiency, minimize the environmental impact of the company with their environment due to the reduction of pollutantsEl presente estudio se enmarcó en la modalidad de Proyecto Especial apoyado en una investigación de campo de naturaleza descriptiva y tuvo como propósito implantar Sistema de Gestión Ambiental basados en la norma ISO 14001:2004/Cor.1:2009, Subcláusula 4.1 Requisitos Generales, 4.2 Política Ambiental, 4.3 Planificación, 4.4 Implementación y Operación en el proceso productivo de la línea de Pastas Corta de la empresa “PASTAS CAPRI” C. A. La investigación se llevó a cabo en tres fases: en la primera fase se diagnosticó la necesidad de implementación del sistema de gestión ambiental, para lo cual se elaboró una lista de verificación basada en las cláusulas de la norma ISO 14001 con preguntas dicotómicas, validado por expertos y aplicado a los sujetos de estudio, que fueron un total de cinco (5) participantes. En la segunda fase se diseñó el sistema de gestión ambiental atendiendo a los pasos señalados en la norma ISO 14001:2004/Cor.1:2009 y por último la tercera fase correspondió a la validación operacional y técnica del sistema de gestión ambiental, para ello se aplicó un instrumento a los sujetos de estudio para conocer el cumplimiento de los debes de la norma ISO 14001:2004/Cor.1:2009. El sistema de gestión ambiental le permite a la empresa optimizar su proceso productivo, mejorar el uso de los recursos, mejora la eficiencia, minimizar el impacto ambiental de la empresa con su entorno debido a la disminución de elementos contaminantes

    Engineering of lipid-coated PLGA nanoparticles with a tunable payload of diagnostically active nanocrystals for medical imaging

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    Polylactic-co-glycolic acid (PLGA) based nanoparticles are biocompatible and biodegradable and therefore have been extensively investigated as therapeutic carriers. Here, we engineered diagnostically active PLGA nanoparticles that incorporate high payloads of nanocrystals into their core for tunable bioimaging features. We accomplished this through esterification reactions of PLGA to generate polymers modified with nanocrystals. The PLGA nanoparticles formed from modified PLGA polymers that were functionalized with either gold nanocrystals or quantum dots exhibited favorable features for computed tomography and optical imaging, respectively.National Heart, Lung, and Blood Institute (Programs of Excellence in Nanotechnology (PEN) Award, Contract #HHSN268201000045C))National Institutes of Health (U.S.) (R01 EB009638)National Institutes of Health (U.S.) (R01 CA155432)National Institutes of Health (U.S.) (K99 EB012165)Netherlands Organization for Scientific Research ((NWO) ECHO.06.B.047
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