809 research outputs found
Workshop on new strategies and tools for the eHealth library organized by the Andalusian eHealth Library
The Andalusian eHealth Library (Biblioteca Virtual del Sistema Sanitario Publico de Andalucia, BV-SSPA), was created in June 2006. The 42 librarians who already worked for the Health System were integrated within this new system. The annual library meeting has been held every year since then, and in 2013 the EAHIL workshop held in Stockholm was the model to follow
An NMRâbased biosensor to measure stereoâspecific methionine sulfoxide reductase (MSR) activities in vitro and in vivo
Oxidation of protein methionines to methionine-sulfoxides (MetOx) is associated with several age-related diseases. In healthy cells, MetOx is reduced to methionine by two families of conserved methionine sulfoxide reductase enzymes, MSRA and MSRB that specifically target the S- or R-diastereoisomers of methionine-sulfoxides, respectively. To directly interrogate MSRA and MSRB functions in cellular settings, we developed an NMR-based biosensor that we call CarMetOx to simultaneously measure both enzyme activities in single reaction setups. We demonstrate the suitability of our strategy to delineate MSR functions in complex biological environments, including cell lysates and live zebrafish embryos. Thereby, we establish differences in substrate specificities between prokaryotic and eukaryotic MSRs and introduce CarMetOx as a highly sensitive tool for studying therapeutic targets of oxidative stress-related human diseases and redox regulated signaling pathways.Fil: Sanchez Lopez, Carolina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de BiologĂa Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de BiologĂa Molecular y Celular de Rosario; ArgentinaFil: Labadie, Natalia. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de BiologĂa Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de BiologĂa Molecular y Celular de Rosario; ArgentinaFil: Lombardo, Veronica Andrea. Universidad Nacional de Rosario. Centro de Estudios Interdisciplinarios; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de BiologĂa Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de BiologĂa Molecular y Celular de Rosario; ArgentinaFil: Biglione, Franco AgustĂn. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de BiologĂa Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de BiologĂa Molecular y Celular de Rosario; ArgentinaFil: Manta, Bruno. Harvard Medical School; Estados UnidosFil: Jacob, Reeba. Weizmann Institute Of Science.; IsraelFil: Gladyshev, Vadim. Harvard Medical School; Estados UnidosFil: Abdelilah Seyfried, Salim. Universitat Potsdam; Alemania. Leibniz Universitat Hannover; AlemaniaFil: Selenko, Philipp. Weizmann Institute Of Science.; IsraelFil: Binolfi, AndrĂ©s. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - Rosario. Instituto de BiologĂa Molecular y Celular de Rosario. Universidad Nacional de Rosario. Facultad de Ciencias BioquĂmicas y FarmacĂ©uticas. Instituto de BiologĂa Molecular y Celular de Rosario; Argentin
Stent-induced tracheal stenosis can be predicted by IL-8 expression in rabbits
Background: bare metal stents may cause complications like fibrous encapsulation, granulation and tracheal stenosis. We investigated the behaviour of three commercially available stents in vivo (rabbits) and in vitro (coculture of those stents with epithelial and fibroblast cell lines). Also, we investigated whether development of tracheal stenosis could be predicted by any biological marker. Materials and methods: the tracheae of 30 rabbits were implanted with either nitinol stents, with or without paclitaxel elution, or a cobalt-based stent. An additional ten rabbits underwent mock implantation (controls). Serial peripheral venous blood samples were taken throughout the study, and several cytokines measured. Animals were euthanized on day 90, with immediate tracheal endoscopy and lavage performed, then necropsy. Results: rabbits with cobalt-based stent exhibited more inflammation and the highest stenosis incidence, with reduced survival. Both in vivo and in vitro, this stent induced higher IL-8 levels than nitinol stents. Most important, the presence of stent-induced tracheal stenosis was closely associated to increase in IL-8 expression in blood just 1 day after tracheal stent implantation: a 1·19-fold increase vs. baseline had 83% sensitivity, 83% specificity, 77% positive predictive value, 88%negative predictive value and 83% accuracy to predict development of stenosis. Conclusions: the cobalt-based stent had the highest incidence of tracheal inflammation and stenosis. On the other hand, the paclitaxel-eluting nitinol stent did not prevent those complications and provoked a marked reaction compared with the bare nitinol stent. Early increase in IL-8 expression in blood after stent implantation could predict development of tracheal stenosis in rabbits
PLAN DE RESPONSABILIDAD SOCIAL EMPRESARIAL HIDRINCO S A S
https://youtu.be/9wWkRL0hw74Hoy en dĂa las empresas estĂĄn luchando por ser mĂĄs eficientes y tener mayor participaciĂłn en su industria, para que suceda esto, las organizaciones necesitan de un crecimiento constante, lo que las obliga a canalizar sus recursos financieros de la mejor forma.
Las finanzas juegan un papel muy importante dentro de las empresa, asĂ mismo otros factores que intervienen de manera significativa en la organizaciĂłn es el plan de responsabilidad social y empresarial RSE.
Crear consciencia de cĂłmo estamos impactando todo el sistema en el que opera la empresa, la hace exitosa y diferenciadora de las demĂĄs en el mercado, asĂ mismo se hace imperativo tener definida, gestionada y mejorada la estrategia de RSE e integrada a las demĂĄs estrategias, esto permite que la organizaciĂłn sea concebida como una empresa que contribuye a su crecimiento y a la vez al crecimiento de todo el sistema en el que opera.
Hemos seleccionado para esta actividad una empresa colombiana que lleva en el mercado 9 años de constante y esforzado trabajo, Hidrinco S.A.S, es una empresa de ingenierĂa en sistemas de protecciĂłn contra incendio mediante agua nebulizada Hifog ademĂĄs de otras actividades como diseño, interventora y consultorĂa. Esta pequeña organizaciĂłn es un gran ejemplo de cĂłmo hacer responsabilidad social y ambiental en una misma idea.Today companies are struggling to be more efficient and have greater participation in their industry, for this to happen, organizations need constant growth, which forces them to channel their financial resources in the best way.
Finance plays a very important role within the company, likewise other factors that intervene in a significant way in the organization is the social and business responsibility plan RSE
Creating awareness of how we are impacting the entire system in which the company operates, makes it successful and differentiating from others in the market, likewise it is imperative to have defined, managed and improved the CSR strategy and integrated to the other strategies, This allows the organization to be conceived as a company that contributes to its growth and at the same time to the growth of the entire system in which it operates.
We have selected for this activity a Colombian company that has been in the market for 9 years of constant and hard work, Hidrinco s.a.s is an engineering company in fire protection systems using Hifog nebulized water, as well as other activities such as design, supervision and consulting. This small organization is a great example of how to make social and environmental responsibility in the same idea
Effect of Continuous Positive Airway Pressure on Inflammatory, Antioxidant, and Depression Biomarkers in Women With Obstructive Sleep Apnea: A Randomized Controlled Trial
Study objectives: The effect of continuous positive airway pressure (CPAP) on mediators of cardiovascular disease and depression in women with obstructive sleep apnea (OSA) is unknown. We aimed to assess the effect of CPAP therapy on a variety of biomarkers of inflammation, antioxidant activity, and depression in women with OSA.
Methods: We conducted a multicenter, randomized controlled trial in 247 women diagnosed with moderate-to-severe OSA (apnea-hypopnea index [AHI] ? 15). Women were randomized to CPAP (n = 120) or conservative treatment (n = 127) for 12 weeks. Changes in tumor necrosis factor ? (TNF?), interleukin 6 (IL-6), C-reactive protein (CRP), intercellular adhesion molecule 1 (ICAM-1), catalase (CAT), superoxide dismutase (SOD), and brain-derived neurotrophic factor (BDNF) were assessed. Additional analyses were conducted in subgroups of clinical interest.
Results: Women had a median (25th-75th percentiles) age of 58 (51-65) years, body mass index 33.5 (29.0-38.3) kg/m2, and AHI 33.3 (22.8-49.3). No differences were found between groups in the baseline levels of the biomarkers. After 12 weeks of follow-up, there were no changes between groups in any of the biomarkers assessed. These results did not change when the analyses were restricted to sleepy women or to those with severe OSA. In women with CPAP use at least 5 hours per night, only TNF? levels decreased compared to the control group (-0.29 ± 1.1 vs -0.06 ± 0.53, intergroup difference -0.23 [95% CI = -0.03 to -0.50]; p = 0.043).
Conclusions: Twelve weeks of CPAP therapy does not improve biomarkers of inflammation, antioxidant activity, or depression compared to conservative treatment in women with moderate-to-severe OSA
Neuronal and glial characterization in the rostrocaudal axis of the human anterior olfactory nucleus: Involvement in Parkinsonâs disease
Hyposmia is one of the prodromal symptoms of Parkinsonâs disease (PD) and a red flag in clinical diagnosis. Neuropathologically, this sign correlates with α-synuclein involvement in the anterior olfactory nucleus (AON). Neurodegeneration, microgliosis, and astrogliosis in AON are poorly studied, and bulbar AON is the focus of these studies with contradictory results. Additionally, male sex is a risk marker for developing PD, but sexual dimorphism of neural and glial populations in the AON has rarely been considered. The aim of this study was to analyze the density of NeuN, Iba-1, GFAP, and Lewy bodies (LBs), as well as the relationship of these cell type markers with pathology along the rostrocaudal axis of the AON (bulbar, retrobulbar, cortical anterior, and posterior divisions). Cavalieri, optical fractionator, and area fraction fractionator stereological approaches were used for the volume, cell populations and LBs densities, area fraction, and percentage of overlap. Iba-1 and α-syn intensities were measured using ImageJ. In non-PD (NPD) cases, the volume was lower in the AON at the extremes of the rostrocaudal axis than in the intermediate divisions. Cortical anterior AON volume decreased in PD compared with NPD cases. NeuN density decreased rostrocaudally in AON portions in NPD and PD cases. This occurred similarly in Iba-1 but only in PD samples. Iba-1 intensity significantly increased in bulbar AON between PD and NPD. No changes were found in astrocytes. Eight percent of NeuN, 0.1% of Iba-1, and 0.1% of GFAP areas overlapped with LBs area along the AON portions. The data indicate that bulbar AON, which is the most rostral portion in this axis, could play a major role in the pathology. This could be related to the larger area occupied by LBs in these divisions
Distribution of dendritic cells in AIDS-associated oral Kaposiâs sarcoma
The aim of this study was to determine if the distribution of Langerhans cells (LC) and
interstitial dendritic cells (IDC) is altered in AIDS-associated oral Kaposiâs sarcoma when
compared to HIV-negative highly vascular oral lesions. Fifty-one cases of AIDS-associated
oral Kaposiâs sarcoma and 20 of highly vascular oral lesions were retrospectively retrieved.
All cases of Kaposiâs sarcoma were confirmed with immunoreactions against CD34
and HHV-8. Clinical data regarding sex, age and lesions location were obtained from
pathology reports. Immunohistochemistry against CD207 (immature dendritic cells)
and CD83 (mature dendritic cells) were done. LC were in the epithelium and IDC in the
stroma. CD207+ cells predominated in the epithelium of the lesions, whereas CD83+
cells predominated in their stromal compartment. Kaposiâs sarcoma had a lower CD207+
immature LC count (p=0.02) and an increased CD207+ IDC than highly vascular oral
lesions (p<0.001). Moreover, Kaposiâs sarcoma also showed an increased number of mature
CD83+ IDC than highly vascular oral lesions (p<0.001). There were significant alterations
in the distribution of LC and IDC in AIDS-associated Kaposiâs sarcoma when compared to
HIV-negative vascular oral lesions, suggesting that changes in their concentrations may
play a role in the pathogenesis of Kaposiâs sarcoma.O objetivo deste estudo foi determinar se a distribuição das cĂ©lulas de
Langerhans (CL) e das cĂ©lulas dendrĂticas intersticiais (CDI) estĂĄ alterada
no sarcoma de Kaposi oral associado Ă AIDS quando comparado Ă s
lesÔes orais altamente vasculares HIV-negativas. 51 casos de sarcoma de
Kaposi oral associado à AIDS e 20 de lesÔes orais altamente vasculares
foram recuperados retrospectivamente. Todos os casos de sarcoma de
Kaposi foram confirmados pela positividade para os anticorpos CD34 e
HHV-8. Dados clĂnicos sobre sexo, idade e localização das lesĂ”es foram
obtidos dos laudos histopatolĂłgicos. Foram realizadas imunoistoquĂmica
contra CD207 (cĂ©lulas dendrĂticas imaturas) e CD83 (cĂ©lulas dendrĂticas
maduras). As CL estavam presentes no epitélio enquanto as CDI estavam
presentes no estroma. As células CD207+ predominaram no epitélio das
lesÔes, enquanto as células CD83+ predominaram no estroma. O sarcoma
de Kaposi teve uma contagem mais baixa de CD imaturas CD207+ (p =
0,02) e nĂșmero aumentado de CDC CD207+ do que lesĂ”es orais altamente
vasculares (p<0,001). Além disso, o sarcoma de Kaposi também mostrou um
nĂșmero aumentado de CDI CD83+ maduras do que lesĂ”es orais altamente
vasculares (p<0,001). Houve alteraçÔes significativas na distribuição de CL e CDI no sarcoma de Kaposi associado à AIDS quando comparado
às lesÔes orais vasculares HIV-negativas, sugerindo que alteraçÔes na
distribuição das mesmas podem desempenhar um papel na patogĂȘnese
do sarcoma de Kaposi.am2020Oral Pathology and Oral Biolog
Engineered LINE-1 retrotransposition in nondividing human neurons
Half the human genome is made of transposable elements (TEs), whose ongoing activity continues to impact our genome. LINE-1 (or L1) is an autonomous non-LTR retrotransposon in the human genome, comprising 17% of its genomic mass and containing an average of 80-100 active L1s per average genome that provide a source of inter-individual variation. New LINE-1 insertions are thought to accumulate mostly during human embryogenesis. Surprisingly, the activity of L1s can further impact the somatic human brain genome. However, it is currently unknown whether L1 can retrotranspose in other somatic healthy tissues or if L1 mobilization is restricted to neuronal precursor cells (NPCs) in the human brain. Here, we took advantage of an engineered L1 retrotransposition assay to analyze L1 mobilization rates in human mesenchymal (MSCs) and hematopoietic (HSCs) somatic stem cells. Notably, we have observed that L1 expression and engineered retrotransposition is much lower in both MSCs and HSCs when compared to NPCs. Remarkably, we have further demonstrated for the first time that engineered L1s can retrotranspose efficiently in mature nondividing neuronal cells. Thus, these findings suggest that the degree of somatic mosaicism and the impact of L1 retrotransposition in the human brain is likely much higher than previously thought.We thank current members of the J.L.G.-P. laboratory for helpful discussions. We also thank Drs. Geoffrey Faulkner (Mater Research, Australia) and John V. Moran (University of Michigan) for sharing unpublished data and for critical input during the project; Ms. Raquel Marrero (Microscopy Unit, Genyo) for technical support; Simon Mendez-Ferrer (CNIC, Spain) for providing total RNA isolated from human mesenspheres; Dr. Oliver Weichenrieder (Max-Planck, Tubingen, Germany) for providing a polyclonal L1-ORF1p antibody; and Dr. Aurelien Doucet (IRCAN, Nice, France) for providing a plasmid containing an UBC-driven EGFP retrotransposition indicator cassette. J.L.G. was funded by the US Department of Defense, Breast Cancer Research Program (award #BC051386), the National Institutes of Health (NIH) National Institute of Neurological Disorders and Stroke (1R03NS087290-01), and the ALS Therapy Alliance (2013-F-067). A.M. has been partially funded by a Marie Curie IRG project (FP7-PEOPLE-2007-4-3-IRG: SOMATIC LINE-1). J.L.G.-P's laboratory is supported by CICE-FEDER-P09-CTS-4980, CICE-FEDER-P12-CTS-2256, Plan Nacional de I+D+I 2008â2011 and 2013â2016 (FIS-FEDER-PI11/01489 and FIS-FEDER-PI14/02152), PCIN-2014-115-ERA-NET NEURON II, the European Research Council (ERC-Consolidator ERC-STG-2012-233764), by an International Early Career Scientist grant from the Howard Hughes Medical Institute (IECS-55007420), and by The Wellcome TrustâUniversity of Edinburgh Institutional Strategic Support Fund (ISFF2).S
EvaluaciĂłn formativa con feedback rĂĄpido mediante mandos interactivos en la docencia de PrĂłtesis III
El objetivo es diseñar y elaborar un sistema de evaluaciĂłn continuada mediante el empleo de mandos interactivos para la docencia de PrĂłtesis III, que permitan mejorar la enseñanza clĂnica, y el aprendizaje tanto individual como en equipo
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