7,234 research outputs found

    Laparoscopy and Natural Orifice Surgery: First Entry Safety Surveillance Step

    Get PDF
    Results of this study suggest that surveillance of the first entrance port in laparoscopic and natural orifice transvaginal endoscopic procedures may assist in recognizing complications that might otherwise be missed

    Hospital length of stay for COVID-19 patients: Data-driven methods for forward planning.

    Get PDF
    From Europe PMC via Jisc Publications RouterHistory: ppub 2021-07-01, epub 2021-07-22Publication status: PublishedFunder: Medical Research Council; Grant(s): MR/R502236/1Funder: Royal Society; Grant(s): 202562/Z/16/Z, INF/R2/180067BackgroundPredicting hospital length of stay (LoS) for patients with COVID-19 infection is essential to ensure that adequate bed capacity can be provided without unnecessarily restricting care for patients with other conditions. Here, we demonstrate the utility of three complementary methods for predicting LoS using UK national- and hospital-level data.MethodOn a national scale, relevant patients were identified from the COVID-19 Hospitalisation in England Surveillance System (CHESS) reports. An Accelerated Failure Time (AFT) survival model and a truncation corrected method (TC), both with underlying Weibull distributions, were fitted to the data to estimate LoS from hospital admission date to an outcome (death or discharge) and from hospital admission date to Intensive Care Unit (ICU) admission date. In a second approach we fit a multi-state (MS) survival model to data directly from the Manchester University NHS Foundation Trust (MFT). We develop a planning tool that uses LoS estimates from these models to predict bed occupancy.ResultsAll methods produced similar overall estimates of LoS for overall hospital stay, given a patient is not admitted to ICU (8.4, 9.1 and 8.0 days for AFT, TC and MS, respectively). Estimates differ more significantly between the local and national level when considering ICU. National estimates for ICU LoS from AFT and TC were 12.4 and 13.4 days, whereas in local data the MS method produced estimates of 18.9 days.ConclusionsGiven the complexity and partiality of different data sources and the rapidly evolving nature of the COVID-19 pandemic, it is most appropriate to use multiple analysis methods on multiple datasets. The AFT method accounts for censored cases, but does not allow for simultaneous consideration of different outcomes. The TC method does not include censored cases, instead correcting for truncation in the data, but does consider these different outcomes. The MS method can model complex pathways to different outcomes whilst accounting for censoring, but cannot handle non-random case missingness. Overall, we conclude that data-driven modelling approaches of LoS using these methods is useful in epidemic planning and management, and should be considered for widespread adoption throughout healthcare systems internationally where similar data resources exist

    Immunoglobulin germline gene polymorphisms influence the function of SARS-CoV-2 neutralizing antibodies

    Get PDF
    The human immunoglobulin heavy-chain (IGH) locus is exceptionally polymorphic, with high levels of allelic and structural variation. Thus, germline IGH genotypes are personal, which may influence responses to infection and vaccination. For an improved understanding of inter-individual differences in antibody responses, we isolated SARS-CoV-2 spike-specific monoclonal antibodies from convalescent health care workers, focusing on the IGHV1-69 gene, which has the highest level of allelic variation of all IGHV genes. The IGHV1-69∗20-using CAB-I47 antibody and two similar antibodies isolated from an independent donor were critically dependent on allele usage. Neutralization was retained when reverting the V region to the germline IGHV1-69∗20 allele but lost when reverting to other IGHV1-69 alleles. Structural data confirmed that two germline-encoded polymorphisms, R50 and F55, in the IGHV1-69 gene were required for high-affinity receptor-binding domain interaction. These results demonstrate that polymorphisms in IGH genes can influence the function of SARS-CoV-2 neutralizing antibodies

    Shoc2/Sur8 protein regulates neurite outgrowth

    Get PDF
    This is an openaccess article distributed under the terms of the Creative Commons Attribution License.-- et al.The Shoc2 protein has been implicated in the positive regulation of the Ras-ERK pathway by increasing the functional binding interaction between Ras and Raf, leading to increased ERK activity. Here we found that Shoc2 overexpression induced sustained ERK phosphorylation, notably in the case of EGF stimulation, and Shoc2 knockdown inhibited ERK activation. We demonstrate that ectopic overexpression of human Shoc2 in PC12 cells significantly promotes neurite extension in the presence of EGF, a stimulus that induces proliferation rather than differentiation in these cells. Finally, Shoc2 depletion reduces both NGF-induced neurite outgrowth and ERK activation in PC12 cells. Our data indicate that Shoc2 is essential to modulate the Ras-ERK signaling outcome in cell differentiation processes involved in neurite outgrowth.GL, TG and LMD were recipients of fellowships from the Ministerio de Educación y Ciencia (MEC) (to GL, TG), and Fondo de Investigaciones Sanitarias (FIS) (to LMD). LSR held a postdoctoral research contract from CIBERNED. This work was supported by FIS grant (PI10/00815) to JLO; CIBERNED to MC; SAF2008-01951, Comunidad Autónoma de Madrid (CAM) SSAL-0202-2006-01 and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED) to TI; FIS grant PI12/00775 and ISCIII-RETIC (Red Temática de Investigación Cooperativa en Cáncer) RD12/0036/0027 from the Instituto de Salud Carlos III to PSG; and FIS grants (PI09/0562 and PI13/00703), ISCIIIRETIC (RD06/0020/0003 and RD12/0036/0021), and the Spanish Association Against Cancer (AECC) to JMR.Peer Reviewe

    Human iPSC derived disease model of MERTK-associated retinitis pigmentosa

    Get PDF
    Retinitis pigmentosa (RP) represents a genetically heterogeneous group of retinal dystrophies affecting mainly the rod photoreceptors and in some instances also the retinal pigment epithelium (RPE) cells of the retina. Clinical symptoms and disease progression leading to moderate to severe loss of vision are well established and despite significant progress in the identification of causative genes, the disease pathology remains unclear. Lack of this understanding has so far hindered development of effective therapies. Here we report successful generation of human induced pluripotent stem cells (iPSC) from skin fibroblasts of a patient harboring a novel Ser331Cysfs*5 mutation in the MERTK gene. The patient was diagnosed with an early onset and severe form of autosomal recessive RP (arRP). Upon differentiation of these iPSC towards RPE, patient-specific RPE cells exhibited defective phagocytosis, a characteristic phenotype of MERTK deficiency observed in human patients and animal models. Thus we have created a faithful cellular model of arRP incorporating the human genetic background which will allow us to investigate in detail the disease mechanism, explore screening of a variety of therapeutic compounds/reagents and design either combined cell and gene- based therapies or independent approaches.This work was supported by Andalusian Health Council (PI-0324-2013), Instituto de Salud Carlos III (PI13/01331), Spanish Ministry of Economy and Competitiveness-FEDER BFU2012-36845, Instituto de Salud Carlos III RETICS RD12/0034/0010 and Academy of Finland (218050; 272808)

    Effects of Zoledronic Acid in Experimental Periapical Lesions in Rats: An Imaging and Histological Analysis

    Get PDF
    Joannis J. de. Note sur une nouvelle espèce de Microlépidoptère d'Algérie, Tineola infuscatella . In: Bulletin de la Société entomologique de France, volume 2 (5),1897. pp. 109-111

    Shoc2/Sur8 Protein Regulates Neurite Outgrowth

    Get PDF
    The Shoc2 protein has been implicated in the positive regulation of the Ras-ERK pathway by increasing the functional binding interaction between Ras and Raf, leading to increased ERK activity. Here we found that Shoc2 overexpression induced sustained ERK phosphorylation, notably in the case of EGF stimulation, and Shoc2 knockdown inhibited ERK activation. We demonstrate that ectopic overexpression of human Shoc2 in PC12 cells significantly promotes neurite extension in the presence of EGF, a stimulus that induces proliferation rather than differentiation in these cells. Finally, Shoc2 depletion reduces both NGF-induced neurite outgrowth and ERK activation in PC12 cells. Our data indicate that Shoc2 is essential to modulate the Ras-ERK signaling outcome in cell differentiation processes involved in neurite outgrowth.This work was supported by FIS grant (PI10/00815) to JLO; CIBERNED to MC; SAF2008-01951, Comunidad Autónoma de Madrid (CAM) S-SAL-0202-2006-01 and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED) to TI; FIS grant PI12/00775 and ISCIII-RETIC (Red Temática de Investigación Cooperativa en Cáncer) RD12/0036/0027 from the Instituto de Salud Carlos III to PSG; and FIS grants (PI09/0562 and PI13/00703), ISCIII-RETIC (RD06/0020/0003 and RD12/0036/0021), and the Spanish Association Against Cancer (AECC) to JMR. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.S

    Association between depression and functional dependence in elderly patients

    Get PDF
    Objective: To determine the association between depression and functional dependence in elderly patients of the Centro Geriátrico Naval (Peruvian naval medical center for elderly people). Materials and methods: A retrospective, cross-sectional, analytic study conducted from a secondary data analysis, with a convenience sample size of 625 elderly people. Results: In the linear regression analysis which predicts functional dependence according to the Barthel Index, it was found that, for each point in the Yesavage questionnaire, the Barthel Index score decreases 4.8±1.82 points and, for every 5 points, it decreases 29.99±3.62 points. In relation to the Lawton Index, significant outcomes were found regarding age, gender, military rank, physical performance, grip strength and depression. Conclusions: The results show an association between depression and functional dependence in performing basic and instrumental activities of daily life. Moreover, the higher the risk of depression, the higher the chance of developing functional dependence according to the Barthel Index, regardless of other variables

    Role for Maternal Asthma in Severe Human Metapneumovirus Lung Disease Susceptibility in Children

    Get PDF
    Background: Severity of human metapneumovirus (hMPV) lower respiratory illness (LRTI) is considered similar to that observed for respiratory syncytial virus (RSV). However, differences in severity between these pathogens have been noted, suggesting the degree of illness may vary in different populations. Moreover, a potential association between hMPV and asthma also suggests that hMPV may preferentially affect asthmatic subjects. Methods: In a population-based surveillance study in children aged <2 years admitted for severe LRTI in Argentina, nasopharyngeal aspirates were tested by RT-PCR for hMPV, RSV, influenza A, and human rhinovirus. Results: Of 3947 children, 383 (10%) were infected with hMPV. The hospitalization rate for hMPV LRTI was 2.26 per 1000 children (95% confidence interval [CI], 2.04-2.49). Thirty-nine (10.2%) patients infected with hMPV experienced life-threatening disease (LTD; 0.23 per 1000 children; 95% CI,. 16-.31/1000), and 2 died (mortality rate 0.024 per 1000; 95% CI,. 003-.086). In hMPV-infected children birth to an asthmatic mother was an increased risk for LTD (odds ratio, 4.72; 95% CI, 1.39-16.01). We observed a specific interaction between maternal asthma and hMPV infection affecting risk for LTD. Conclusions: Maternal asthma increases the risk for LTD in children <2 years old hospitalized for severe hMPV LRTI.Fil: Libster, Romina Paula. Fundación para la Investigación en Infectología Infantil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Esteban, Ignacio. Fundación para la Investigación en Infectología Infantil; Argentina. Gobierno de la Ciudad de Buenos Aires. Hospital de Pediatría "Juan P. Garrahan"; ArgentinaFil: Bianchi, Alejandra Silvina. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Alva Grimaldi, Luciano. Gobierno de la Provincia de Buenos Aires. Hospital Zonal General de Agudos Doctor Lucio Melendez.; ArgentinaFil: Dueñas, Karina. Gobierno de la Provincia de Buenos Aires. Hospital Interzonal de Agudos Evita.; ArgentinaFil: Sancillo, Andrea. Gobierno de la Provincia de Buenos Aires. Hospital Interzonal de Agudos Evita.; ArgentinaFil: Rodriguez, Andrea. Gobierno de la Provincia de Buenos Aires. Hospital Provincial Evita Pueblo.; ArgentinaFil: Ferrero, Fernando. Gobierno de la Ciudad de Buenos Aires. Hospital General de Niños Pedro Elizalde (ex Casa Cuna); ArgentinaFil: Stein, Katherine. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Acosta, Patricio Leandro. Fundación para la Investigación en Infectología Infantil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ferolla, Fausto Martín. Fundación para la Investigación en Infectología Infantil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Bergel, Eduardo. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Caballero, Mauricio Tomás. Fundación para la Investigación en Infectología Infantil; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Polack, Fernando Pedro. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Pellegrino, Gustavo. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Fernandez Gago, Guadalupe. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Pozzolo, Cecilia. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Castro, Laura. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Almeida, Rodrigo Egues. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Rebec, Beatriz. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: González, Mariela. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Calvo, Mariel. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Henrichsen, Julieta. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Nocito, Celina. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Barbero, Guillermo. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Ves Losada, Juan. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Bonina, Angel. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Flamenco, Edgardo. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Rodriguez Perez, Alberto. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Kobylarz, Alicia. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Raggio, Mirta. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Schavlosky, Graciela. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Caria, Adriana. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Barboza, Edgar. Fundación para la Investigación en Infectología Infantil; ArgentinaFil: Sastre, Gustavo. Fundación para la Investigación en Infectología Infantil; Argentin

    VizieR Online Data Catalog: Emission-line galaxies in ZwCl0024.0+1652 (Sanchez-Portal+, 2015)

    Get PDF
    Two OSIRIS/GTC pointings using the red TF were planned and executed towards Cl0024. The first one (carried out in GTC semesters 09B, 10A, and 13B; hereafter referred to as "centre position") targeted the Hα/[NII], Hα and [OIII] lines. The second pointing (hereafter referred to as "offset position") was carried out in semesters 10B and 13B, and it targeted the same emission lines. (1 data file)
    • …
    corecore