18 research outputs found
El diseño de campañas sobre el ictus y su evaluación : una revisión de 10 años de literatura científica (1999-2009)
Ictus es el nombre que reciben las manifestaciones agudas de un conjunto de enfermedades que tienen en común producir el taponamiento o ruptura de una arteria, lo que provoca que la sangre no llegue a una parte del cerebro y que las células cerebrales mueran; representan la tercera causa de muerte en el mundo occidental. La finalidad de este escrito es identificar las metodologías y estrategias de comunicación más adecuadas para la efectividad de los mensajes de prevención de episodios de ictus, centrándonos en si las campañas son evaluadas y en qué forma. Para ello, se hizo una revisión de la literatura científica de campañas de comunicación o intervenciones de educación comunitaria sobre ictus en cualquier revista médica de impacto en castellano, catalán, francés e inglés entre los años 1999 y 2009. La búsqueda de la literatura se realizó mediante palabras claves introducidas en las bases de datos Pubmed/Medline, ISI Web of Knowledge y Scopus y posterior búsqueda manual a partir de las referencias bibliográficas incluidas en los artículos seleccionados. Con posterioridad se rellenaron fichas-cuestionarios para el vaciado de los artículos. Los resultados demuestran que la evaluación de campañas de ictus es escasa y que esta suele ser cuantitativa y basada en el recuerdo.Stroke is the general name given to the acute manifestation of a series of conditions that have in common the production of a blockage or rupture of an artery, causing the blood to be unable to reach the brain and the consequent death of brain cells; it is the third cause of death in the Western world. The goal of this article is identifying the most adequate communication methodologies and strategies for the effectiveness of messages trying to prevent a stroke episode: the focus will be on discerning if the campaign has been evaluated and how. In order to reach this goal, we performed a review of scientific literature about stroke communication campaigns or community education interventions in any impact journal in Spanish, Catalan, French or English between 1999 and 2009. The literature selection was based on a keywords search on various databases (Pubmed/Medline, ISI Web of Knowledge and Scopus) and a subsequent manual search from bibliography included in the selected articles. We created a database with a form per article, later on. Results show that evaluation of stroke campaigns is scarce and, when it exists, it is quantitative and based on remembrance
Estudios de Caso sobre Ciencias Agropecuarias y Rurales en el siglo XXI.
Libro científico sobre estudios de casos en el medio agropecuario y ruralCon el advenimiento del siglo XXI y el avance de los procesos de globalización, el medio rural presenta diversos cambios económicos, sociales, políticos y culturales. Lo anterior significa que el campo es un objeto de estudio altamente dinámico, complejo e inasible. las ciencias agropecuarias y rurales, en la actualidad, requieren de un abordaje sistémico e interdisciplinario que den cuenta de la heterogeneidad de situaciones y contextos que enfrenta el campo mexicano. La presente obra agrupa 18 estudios de caso, que capturan algunas fotografías de las diversas problemáticas de la ruralidad mexicana, con lo cual se pretende dar cuenta tanto de los objetivos de estudio como de la perspectiva teórico metodológico desde que estos son abordados. lo anterior tiene que ver con el hecho de que las ciencias agropecuarias y rurales manifiestan un alto grado de observación empírica, motivo por el que los estudios de caso se convierten en la perspectiva metodológica idónea que permite ir y venir de la realidad a la teoría y viceversa para la construcción de objetos de estudio. En este volumen se aborda una gran diversidad de casos, que sintetizan la heterogeneidad de enfoques y perspectivas mediante las cuales los fenómenos agropecuarios y rurales han sido abordados en el Instituto de Ciencias Agropecuarias y Rurales de la Universidad Autónoma del Estado de México, en los últimos 30 años
Molecular Characterization of Monocyte Subsets Reveals Specific and Distinctive Molecular Signatures Associated With Cardiovascular Disease in Rheumatoid Arthritis
Objectives: This study, developed within the Innovative Medicines Initiative Joint Undertaking project PRECISESADS framework, aimed at functionally characterize the monocyte subsets in RA patients, and analyze their involvement in the increased CV risk associated with RA.Methods: The frequencies of monocyte subpopulations in the peripheral blood of 140 RA patients and 145 healthy donors (HDs) included in the PRECISESADS study were determined by flow cytometry. A second cohort of 50 RA patients and 30 HDs was included, of which CD14+ and CD16+ monocyte subpopulations were isolated using immuno-magnetic selection. Their transcriptomic profiles (mRNA and microRNA), proinflammatory patterns and activated pathways were evaluated and related to clinical features and CV risk. Mechanistic in vitro analyses were further performed.Results: CD14++CD16+ intermediate monocytes were extended in both cohorts of RA patients. Their increased frequency was associated with the positivity for autoantibodies, disease duration, inflammation, endothelial dysfunction and the presence of atheroma plaques, as well as with the CV risk score. CD14+ and CD16+ monocyte subsets showed distinctive and specific mRNA and microRNA profiles, along with specific intracellular signaling activation, indicating different functionalities. Moreover, that specific molecular profiles were interrelated and associated to atherosclerosis development and increased CV risk in RA patients. In vitro, RA serum promoted differentiation of CD14+CD16− to CD14++CD16+ monocytes. Co-culture with RA-isolated monocyte subsets induced differential activation of endothelial cells.Conclusions: Our overall data suggest that the generation of inflammatory monocytes is associated to the autoimmune/inflammatory response that mediates RA. These monocyte subsets, -which display specific and distinctive molecular signatures- might promote endothelial dysfunction and in turn, the progression of atherosclerosis through a finely regulated process driving CVD development in RA
El diseño de campañas sobre el ictus y su evaluación : una revisión de 10 años de literatura científica (1999-2009)
Ictus es el nombre que reciben las manifestaciones agudas de un conjunto de enfermedades que tienen en común producir el taponamiento o ruptura de una arteria, lo que provoca que la sangre no llegue a una parte del cerebro y que las células cerebrales mueran; representan la tercera causa de muerte en el mundo occidental. La finalidad de este escrito es identificar las metodologías y estrategias de comunicación más adecuadas para la efectividad de los mensajes de prevención de episodios de ictus, centrándonos en si las campañas son evaluadas y en qué forma. Para ello, se hizo una revisión de la literatura científica de campañas de comunicación o intervenciones de educación comunitaria sobre ictus en cualquier revista médica de impacto en castellano, catalán, francés e inglés entre los años 1999 y 2009. La búsqueda de la literatura se realizó mediante palabras claves introducidas en las bases de datos Pubmed/Medline, ISI Web of Knowledge y Scopus y posterior búsqueda manual a partir de las referencias bibliográficas incluidas en los artículos seleccionados. Con posterioridad se rellenaron fichas-cuestionarios para el vaciado de los artículos. Los resultados demuestran que la evaluación de campañas de ictus es escasa y que esta suele ser cuantitativa y basada en el recuerdo.Stroke is the general name given to the acute manifestation of a series of conditions that have in common the production of a blockage or rupture of an artery, causing the blood to be unable to reach the brain and the consequent death of brain cells; it is the third cause of death in the Western world. The goal of this article is identifying the most adequate communication methodologies and strategies for the effectiveness of messages trying to prevent a stroke episode: the focus will be on discerning if the campaign has been evaluated and how. In order to reach this goal, we performed a review of scientific literature about stroke communication campaigns or community education interventions in any impact journal in Spanish, Catalan, French or English between 1999 and 2009. The literature selection was based on a keywords search on various databases (Pubmed/Medline, ISI Web of Knowledge and Scopus) and a subsequent manual search from bibliography included in the selected articles. We created a database with a form per article, later on. Results show that evaluation of stroke campaigns is scarce and, when it exists, it is quantitative and based on remembrance
Potential Role and Impact of Peripheral Blood Mononuclear Cells in Radiographic Axial Spondyloarthritis-Associated Endothelial Dysfunction
Endothelial dysfunction (ED) is well known as a process that can lead to atherosclerosis and is frequently presented in radiographic axial spondyloarthritis (r-axSpA) patients. Here, we investigated cellular and molecular mechanisms underlying r-axSpA-related ED, and analyzed the potential effect of peripheral blood mononuclear cells (PBMCs) in promoting endothelial injury in r-axSpA. A total of 30 r-axSpA patients and 32 healthy donors (HDs) were evaluated. The endothelial function, inflammatory and atherogenic profile, and oxidative stress were quantified. In vitro studies were designed to evaluate the effect of PBMCs from r-axSpA patients on aberrant endothelial activation. Compared to HDs, our study found that, associated with ED and the plasma proatherogenic profile present in r-axSpA, PBMCs from these patients displayed a pro-oxidative, proinflammatory, and proatherogenic phenotype, with most molecular changes noticed in lymphocytes. Correlation studies revealed the relationship between this phenotype and the microvascular function. Additional in vitro studies confirmed that PBMCs from r-axSpA patients promoted endothelial injury. Altogether, this study suggests the relevance of r-axSpA itself as a strong and independent cardiovascular risk factor, contributing to a dysfunctional endothelium and atherogenic status by aberrant activation of PBMCs. Lymphocytes could be the main contributors in the development of ED and subsequent atherosclerosis in this pathology.This work was funded by grants from Junta de Andalucía (grant numbers PI-0314-2012 and PI-0139-2017). C.L.-P. was supported by a contract from the Spanish Junta de Andalucía, Nicolas Monardes contract. P.R.-L. was supported by a “Sara Borrell” contract (CD19/00216 from ISCIII and cofounded by Fondo Europeo de Desarrollo Regional–FEDER). Y.J.-G. was supported by a contract from the University of Cordoba (Co-financing of the Research Plan of the University of Cordoba and the Operating Program of the European Regional Development Funds (ERDF) for Andalusia).Ye
Circulating microRNAs as potential biomarkers of disease activity and structural damage in ankylosing spondylitis patients.
Ankylosing spondylitis (AS) remains difficult to diagnose before irreversible damage to sacroiliac joint is noticeable. Circulating microRNAs have demonstrated to serve as diagnostic tools for several human diseases. Here, we analysed plasma microRNAs to identify potential AS biomarkers. Higher expression levels of microRNA (miR)-146a-5p, miR-125a-5p, miR-151a-3p and miR-22-3p, and lower expression of miR-150-5p, and miR-451a were found in AS versus healthy donors. Interestingly, higher miR-146a-5p, miR-125a-5p, miR-151a-3p, miR-22-3p and miR-451a expression was also observed in AS than psoriatic arthritis patients. The areas under the curve, generated to assess the accuracy of microRNAs as diagnostic biomarkers for AS, ranged from 0.614 to 0.781; the six-microRNA signature reached 0.957. Bioinformatics analysis revealed that microRNAs targeted inflammatory and bone remodeling genes, underlying their potential role in this pathology. Indeed, additional studies revealed an association between these six microRNAs and potential target proteins related to AS pathophysiology. Furthermore, miR-146a-5p, miR-125a-5p and miR-22-3p expression was increased in active versus non-active patients. Moreover, miR-125a-5p, miR-151a-3p, miR-150-5p and miR-451a expression was related to the presence of syndesmophytes in AS patients. Overall, this study identified a six-plasma microRNA signature that could be attractive candidates as non-invasive biomarkers for the AS diagnosis, and may help to elucidate the disease pathogenesis
Impaired microRNA processing in neutrophils from rheumatoid arthritis patients confers their pathogenic profile. Modulation by biological therapies.
The aim of this study was to investigate the microRNA (miRNA) expression pattern in neutrophils from rheumatoid arthritis (RA) patients and its contribution to their pathogenic profile and to analyze the effect of specific autoantibodies or inflammatory components in the regulation of miRNA in RA neutrophils and its modulation by biological therapies. Neutrophils were isolated from paired peripheral blood (PB) and synovial fluid samples of 40 patients with RA and from PB of 40 healthy donors. A miRNA array was performed using nCounter technology. Neutrophils from healthy donors were treated in vitrowith antibodies to citrullinated protein antigens isolated from RA patients and tumor necrosis factor-a (TNF-a) or interleukin-6. A number of cytokines and chemokines were analyzed. In vitro treatments of RA-neutrophils with tocilizumab or infliximab were carried out. Transfections with pre-miRNA and DICER downregulation experiments were further performed. RA-neutrophils showed a global downregulation of miRNA and genes involved in their biogenesis, alongside with an upregulation of various potential mRNA targets related to migration and inflammation. Decreased levels of miRNA and DICER correlated with autoimmunity, inflammation and disease activity. Citrullinated protein antigens and TNF-a decreased the expression of numerous miRNA and their biogenesis-related genes, increasing their potential mRNA targets. Infliximab reversed those effects. Transfections with pre-miRNA-223, -126 and -148a specifically modulated genes regulating inflammation, survival and migration whereas DICER depletion influenced the inflammatory profile of neutrophils. Taken together RA-neutrophils exhibited a global low abundance of miRNA induced by autoantibodies and inflammatory markers, which potentially contributed to their pathogenic activation. miRNA biogenesis was significantly impaired in RAneutrophils and further associated with a greater downregulation of miRNA mainly related to migration and inflammation in synovial fluid neutrophils. Finally, anti-TNF-a and anti-interleukin-6 receptor treatments can modulate miRNA levels in the neutrophils, minimizing their inflammatory profile
Enhanced NETosis generation in radiographic axial spondyloarthritis: utility as biomarker for disease activity and anti-TNF-α therapy effectiveness.
Radiographic axial spondyloarthritis (r-axSpA) is a chronic inflammatory form of arthritis in which tumor necrosis factor (TNF)-α, a potent inducer of inflammatory response and a key regulator of innate immunity and of Th1 immune responses, plays a central role. NETosis is a mechanism of innate immune defense that is involved in diverse rheumatology diseases. Nevertheless, spontaneous NETosis generation in r-axSpA, its association to disease pathogenesis, and the NETosis involvement on anti-TNF-α therapy's effects has never been explored. Thirty r-axSpA patients and 32 healthy donors (HDs) were evaluated. Neutrophil extracellular trap (NET) formation, mediators of signal-transduction cascade required for NETosis induction and cell-free NETosis-derived products were quantified. An additional cohort of 15 r-axSpA patients treated with infliximab (IFX) for six months were further analyzed. In vitro studies were designed to assess the effects of IFX in NETosis generation and the inflammatory profile triggered. Compared to HDs, neutrophils from r-axSpA patients displayed augmented spontaneous NET formation, elevated expression of NET-associated signaling components, nuclear peptidylarginine deiminase 4 translocation and increased citrullinated histone H3. Furthermore, patients exhibited altered circulating levels of cell-free NETosis-derived products (DNA, nucleosomes and elastase). Additional studies revealed that cell-free NETosis-derived products could be suitable biomarkers for distinguish r-axSpA patients from HDs. Correlation studies showed association between cell-free NETosis-derived products and clinical inflammatory parameters. Besides, nucleosomes displayed potential as a biomarker for discriminate patients according to disease activity. IFX therapy promoted a reduction in both NETosis generation and disease activity in r-axSpA patients. Mechanistic in vitro studies further unveiled the relevance of IFX in reducing NET release and normalizing the augmented inflammatory activities promoted by NETs in mononuclear cells. This study reveals that NETosis is enhanced in r-axSpA patients and identifies the NETosis-derived products as potential disease activity biomarkers. In addition, the data suggests the potential role of NET generation analysis for assessment of therapeutic effectiveness in r-axSpA
An m-Health telerehabilitation and health education program on physical performance in patients with hip fracture and their family caregivers: Study protocol for the ActiveHip+ randomized controlled trial
Telerehabilitation interventions administered via a smartphone may provide new feasible and effective rehabilitation options at home for patients with hip fracture. However, to date, no such interventions have been shown to be effective in the recovery key health outcomes of these patients. The present multicentre randomized controlled trial (RCT) aims to test the effect of the ActiveHip+ m-Health system in the recovery of physical performance, functional level, quality of life, and other health-related outcomes in both patients with hip fracture and their family caregivers. A total of 104 patients older than 65 years, with hip fracture, and their family caregivers will be randomized into the ActiveHip+ rehabilitation (N = 52) or the control group (N = 52). ActiveHip+ is a 12-week smartphone-based rehabilitation program conducted in Granada and Cádiz (Spain) that includes: (1) 24 sessions of physical exercise and 12 sessions of occupational therapy; (2) seven educational modules for patients and for caregivers; and (3) general recommendations in activities of daily living. The control group will receive the usual rehabilitation protocol offered by the Andalusian Public Healthcare System. The primary outcome is the patient's physical performance, while the secondary outcomes are the patient's functional level, quality of life, pain, fear of falling, fitness perception, pre-fracture functional level, emotional status, and caregiver burden. The present project will substantially contribute to the existing knowledge by testing for the first time the efficacy and feasibility of a multidisciplinary m-Health system in the rehabilitation of patients with hip fracture