30 research outputs found
¿Medimos torque o determinamos análisis de frecuencia de resonancia al colocar implantes dentales?: evidencia científica
Actualmente los implantes dentales son el tratamiento de elección ante situaciones de pérdidas dentarias, ya sean unitarias, parciales o totales. Un requisito fundamental que nos aporta datos de éxito es la medición de la estabilidad primaria, para ello contamos con diferentes métodos, los más usados son el torque de inserción y el análisis de frecuencia de resonancia. En este trabajo se pretende realizar una revisión bibliográfica con el objetivo de verificar si es posible afirmar que uno de los dos métodos es más adecuado para la evaluación de la estabilidad primaria de los implantes, y si existe correlación entre los valores registrados por los dos sistemas basándonos en la evidencia científica. Tras seleccionar 10 artículos para la discusión del presente trabajo se llega a la conclusión de que el método que nos aporta mayor fiabilidad es el análisis de frecuencia de resonancia y que no es posible establecer una correlación de forma clara entre ambos sistemas ya que existe mucha controversia.Universidad de Sevilla. Grado en Odontologí
Diseño del plan de auditoría interna para la panadería artesanal don Josué con el fin de implementar el plan HACCP- norma ISO 2200:2018
Bajo el grado de cumplimiento y el avance en el sistema HACCP en conjunto con la ISO 22000:2018 la panificadora artesanal Don Josué, se realizó e implemento un plan de verificación, refuerzo y auditoria al sistema HACCP, por lo que se realiza un plan de auditoria con el fin de analizar la criticidad de aspectos que interfieran en la calidad e inocuidad de manera directa con la etapa de proceso o productos.Under the degree of compliance and progress under the HACCP system in conjunction with ISO 22000:2018, the artisan bakery Don Josue, carried out and implemented a verification, reinforcement and audit plan to the HACCP system. An audit plan is carried out in order to highlight the criticality of aspects that interfere with quality and safety directly with the process or products stage
Stratification of radiosensitive brain metastases based on an actionable S100A9/RAGE resistance mechanism
© The Author(s) 2022. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.Whole-brain radiotherapy (WBRT) is the treatment backbone for many patients with brain metastasis; however, its efficacy in preventing disease progression and the associated toxicity have questioned the clinical impact of this approach and emphasized the need for alternative treatments. Given the limited therapeutic options available for these patients and the poor understanding of the molecular mechanisms underlying the resistance of metastatic lesions to WBRT, we sought to uncover actionable targets and biomarkers that could help to refine patient selection. Through an unbiased analysis of experimental in vivo models of brain metastasis resistant to WBRT, we identified activation of the S100A9-RAGE-NF-κB-JunB pathway in brain metastases as a potential mediator of resistance in this organ. Targeting this pathway genetically or pharmacologically was sufficient to revert the WBRT resistance and increase therapeutic benefits in vivo at lower doses of radiation. In patients with primary melanoma, lung or breast adenocarcinoma developing brain metastasis, endogenous S100A9 levels in brain lesions correlated with clinical response to WBRT and underscored the potential of S100A9 levels in the blood as a noninvasive biomarker. Collectively, we provide a molecular framework to personalize WBRT and improve its efficacy through combination with a radiosensitizer that balances therapeutic benefit and toxicity.info:eu-repo/semantics/publishedVersio
Albiglutide and cardiovascular outcomes in patients with type 2 diabetes and cardiovascular disease (Harmony Outcomes): a double-blind, randomised placebo-controlled trial
Background:
Glucagon-like peptide 1 receptor agonists differ in chemical structure, duration of action, and in their effects on clinical outcomes. The cardiovascular effects of once-weekly albiglutide in type 2 diabetes are unknown. We aimed to determine the safety and efficacy of albiglutide in preventing cardiovascular death, myocardial infarction, or stroke.
Methods:
We did a double-blind, randomised, placebo-controlled trial in 610 sites across 28 countries. We randomly assigned patients aged 40 years and older with type 2 diabetes and cardiovascular disease (at a 1:1 ratio) to groups that either received a subcutaneous injection of albiglutide (30–50 mg, based on glycaemic response and tolerability) or of a matched volume of placebo once a week, in addition to their standard care. Investigators used an interactive voice or web response system to obtain treatment assignment, and patients and all study investigators were masked to their treatment allocation. We hypothesised that albiglutide would be non-inferior to placebo for the primary outcome of the first occurrence of cardiovascular death, myocardial infarction, or stroke, which was assessed in the intention-to-treat population. If non-inferiority was confirmed by an upper limit of the 95% CI for a hazard ratio of less than 1·30, closed testing for superiority was prespecified. This study is registered with ClinicalTrials.gov, number NCT02465515.
Findings:
Patients were screened between July 1, 2015, and Nov 24, 2016. 10 793 patients were screened and 9463 participants were enrolled and randomly assigned to groups: 4731 patients were assigned to receive albiglutide and 4732 patients to receive placebo. On Nov 8, 2017, it was determined that 611 primary endpoints and a median follow-up of at least 1·5 years had accrued, and participants returned for a final visit and discontinuation from study treatment; the last patient visit was on March 12, 2018. These 9463 patients, the intention-to-treat population, were evaluated for a median duration of 1·6 years and were assessed for the primary outcome. The primary composite outcome occurred in 338 (7%) of 4731 patients at an incidence rate of 4·6 events per 100 person-years in the albiglutide group and in 428 (9%) of 4732 patients at an incidence rate of 5·9 events per 100 person-years in the placebo group (hazard ratio 0·78, 95% CI 0·68–0·90), which indicated that albiglutide was superior to placebo (p<0·0001 for non-inferiority; p=0·0006 for superiority). The incidence of acute pancreatitis (ten patients in the albiglutide group and seven patients in the placebo group), pancreatic cancer (six patients in the albiglutide group and five patients in the placebo group), medullary thyroid carcinoma (zero patients in both groups), and other serious adverse events did not differ between the two groups. There were three (<1%) deaths in the placebo group that were assessed by investigators, who were masked to study drug assignment, to be treatment-related and two (<1%) deaths in the albiglutide group.
Interpretation:
In patients with type 2 diabetes and cardiovascular disease, albiglutide was superior to placebo with respect to major adverse cardiovascular events. Evidence-based glucagon-like peptide 1 receptor agonists should therefore be considered as part of a comprehensive strategy to reduce the risk of cardiovascular events in patients with type 2 diabetes.
Funding:
GlaxoSmithKline
Propuesta para generar valor a la empresa O-I Peldar S. A., por unidades de riesgo crediticio, sin entrar en estado de default
Peldar S. A. is the leader in the glass industry in Colombia, currently has strategic expansion plans, which take place through investment in acquisition and maintenance of machinery. With relevant studies, it was determined that the company doesn’t have an optimal capital structure, which allows to destroy value, and generate high capital opportunity cost. This article aims to design a reference model to determine the optimal capital structure for the acquisition of financial debt, without generating financial default states, supported by its own credit risk model for private companies.Peldar S. A. es la empresa líder de la industria del vidrio en Colombia y en la actualidad presenta planes estratégicos de expansión, que llevará a cabo mediante la inversión en adquisición y mantenimiento de maquinaria. Se realizaron estudios en los que se determinó que la empresa no posee una estructura de capital óptima, en consecuencia destruye valor y genera un alto costo de oportunidad sobre el capital. El presente artículo presenta el diseño de un modelo de referencia que permita determinar la estructura óptima de capital para la adquisición de deuda financiera, sin que ello genere estados de default financiero. La propuesta se apoya en un modelo propio de riesgo de crediticio propuesto para empresas privadas
Cognitive Profile of Zonisamide and Valproic Acid in the Treatment of Idiopathic Generalized Epilepsy: A Comparative Observational Study
Introduction: Calls for an alternative to valproic acid (VPA) as drug of choice for idiopathic generalized epilepsies (IGEs) have intensified since the recent International League Against Epilepsy recommendation that the drug should not be administered to women of childbearing age. Zonisamide (ZNS), a third-generation antiepileptic drug, has proven effective in generalized seizures and could be considered an alternative to VPA in this population.Objectives: The present study was designed to examine possible differences in cognitive profile between ZNS and VPA as monotherapy in patients with IGE in real-life settings.Methods: We conducted a comparative, descriptive, observational, retrospective cohort study in two groups of patients diagnosed with IGE treated with ZNS C200 mg/day or VPA C1000 mg/day as stable monotherapy for at least the previous 6 months. We used specific neuropsychological tests for short-and long-term mnemonic functions, working memory, visuospatial speed, attention and processing speed, verbal fluency, executive functions, visual perception, abstraction, anxiety, depression, and apathy.Results: We included 16 patients in the study: eight in the VPA and eight in the ZNS group. Significantly superior mean scores were obtained by the VPA group in working memory (Forward Digits test) and by the ZNS group in execution time for the Rey-Osterrieth complex figure test. No statistically significant differences were found between the groups in the remaining tests.Conclusion: Zonisamide as monotherapy has a similar cognitive profile to that of VPA in patients with IGE. The final treatment selection setting should be individualized. ZNS may be a reasonable alternative to VPA in some cases in this population
Cognitive Profile of Zonisamide and Valproic Acid in the Treatment of Idiopathic Generalized Epilepsy: A Comparative Observational Study
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Cereals as a Source of Bioactive Compounds with Anti-Hypertensive Activity and Their Intake in Times of COVID-19
Cereals have phytochemical compounds that can diminish the incidence of chronic diseases such as hypertension. The angiotensin-converting enzyme 2 (ACE2) participates in the modulation of blood pressure and is the principal receptor of the virus SARS-CoV-2. The inhibitors of the angiotensin-converting enzyme (ACE) and the block receptors of angiotensin II regulate the expression of ACE2; thus, they could be useful in the treatment of patients infected with SARS-CoV-2. The inferior peptides from 1 to 3 kDa and the hydrophobic amino acids are the best candidates to inhibit ACE, and these compounds are present in rice, corn, wheat, oats, sorghum, and barley. In addition, the vitamins C and E, phenolic acids, and flavonoids present in cereals show a reduction in the oxidative stress involved in the pathogenesis of hypertension. The influence of ACE on hypertension and COVID-19 has turned into a primary point of control and treatment from the nutritional perspective. The objective of this work was to describe the inhibitory effect of the angiotensin-converting enzyme that the bioactive compounds present in cereals possess in order to lower blood pressure and how their consumption could be associated with reducing the virulence of COVID-19