219 research outputs found

    PSICQUIC and PSISCORE: accessing and scoring molecular interactions

    Get PDF
    To the Editor.-- Author Manuscript.-- et al.This study was supported by the European Commission under the Serving Life-science Information for the Next Generation contract 226073; Proteomics Standards Initiative and International Molecular Exchange contract FP7-HEALTH-2007-223411; Apoptosis Systems Biology Applied to Cancer and AIDS contract FP7-HEALTH-2007-200767; Experimental Network for Functional Integration contract LSHG-CT-2005-518254; German National Genome Research Network; German Research Foundation contract KFO 129/1-2; US National Institutes of Health grant R01GM071909; the Italian Association for Cancer Research; a Wellcome Trust Strategic Award to the European Molecular Biology Laboratory–European Bioinformatics Institute for Chemogenomics Databases; Grand Challenges in Global Health Research, the Canadian Institutes of Health Research, Foundation for the National Institutes of Health and Genome British Columbia; and a German Research Foundation–funded Cluster of Excellence for Multimodal Computing and Interaction.Peer Reviewe

    The access to broadband services as a strategy to retain population in the depopulated countryside in Spain

    Get PDF
    The aim of this paper is to analyze at what extent the connectivity of small localities is a determinant of their demography. Specifically, we pay attention to three factors: the evolution of the population; the distance, measured both in kilometres and travel time, to the province capital, the usual city where the largest set of services is available; and finally, the coverage of different kinds of broadband services (from ADSL or 3.5 G to the fastest ones FTTH) in rural areas. An econometric model was estimated where the dependent variable captures the increase of inhabitants along 2017–2020 of the 5955 Spanish municipalities with a population between 101 and 10,000 inhabitants (73.3 % of all municipalities). The results point out to the following facts: digital connectivity of small localities is a determinant of their demography, whatever the technology used, but physical distance remains being a significant factor on the population growth (both if it is measured of physical distance or travelling time) to explain the population growth of each locality

    Aprender a emprender desde la Universidad

    Get PDF
    Memoria ID-112. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2020-2021

    Reconstructing the historical shoreline evolution of the Northern Bay of Cádiz (SW Spain) from geomorphological and geoarchaeological data

    Get PDF
    During the last 3 ka, different human communities occupied the Bay of Cádiz (SW Spain), including Phoenician, Carthaginian, Roman, Medieval and Modern settlements. Traces of such historical occupations have been recognized along the bay from a geoarchaeological point of view. Some of them bear a palaeogeographical interest related to the historical location of the shoreline. At the same time, Holocene sedimentary units and geomorphological elements identified along the bay can be interpreted as evidences of its morphological evolution. The objective of the present paper is to represent all the available data about archaeological sites and geomorphology in the northern Bay of Cádiz, with the aim of combining both sources of data for elaborating a simple proposal of landscape evolution during the last 3 millennia. The base for mapping was multiple, from historical aerial photographs to satellite imagery and a digital terrain model with a maximum resolution of 0.35 m.12 página

    Aripiprazole as a Candidate Treatment of COVID-19 Identified Through Genomic Analysis

    Get PDF
    Background: Antipsychotics modulate expression of inflammatory cytokines and inducible inflammatory enzymes. Elopiprazole (a phenylpiperazine antipsychotic drug in phase 1) has been characterized as a therapeutic drug to treat SARS-CoV-2 infection in a repurposing study. We aim to investigate the potential effects of aripiprazole (an FDA approved phenylpiperazine) on COVID-19-related immunological parameters. Methods: Differential gene expression profiles of non-COVID-19 vs. COVID-19 RNA-Seq samples (CRA002390 project in GSA database) and drug-naïve patients with non-affective psychosis at baseline and after three months of aripiprazole treatment were identified. An integrative transcriptomic analyses of aripiprazole effects on differentially expressed genes in COVID-19 patients was performed. Findings: 82 out the 377 genes (21.7%) with expression significantly altered by aripiprazole have also their expression altered in COVID-19 patients and in 93.9% of these genes their expression is reverted by aripiprazole. The number of common genes with expression altered in both analyses is significantly higher than expected (Fisher?s Exact Test, two tail; p value = 3.2e-11). 11 KEGG pathways were significantly enriched with genes with altered expression both in COVID-19 patients and aripiprazole medicated non-affective psychosis patients (p adj<0.05). The most significant pathways were associated to immune responses and mechanisms of hyperinflammation-driven pathology (i.e.,?inflammatory bowel disease (IBD)? (the most significant pathway with a p adj of 0.00021), ?Th1 and Th2 cell differentiation? and ?B cell receptor signaling pathway?) that have been also associated with COVID19 clinical outcome. Interpretation: This exploratory investigation may provide further support to the notion that a protective effect is exerted by aripiprazole (phenylpiperazine) by modulating the expression of genes that have shown to be altered in COVID-19 patients. Along with many ongoing studies and clinical trials, repurposing available medications could be of use in countering SARS-CoV-2 infection, but require further studies and trials.Funding: The present study was part of a larger prospective longitudinal study, the “First Episode Psychosis Clinical Program 10” (PAFIP10) study. ClinicalTrials.gov Identifiers: NCT02200588, NCT03481465, and NCT03476473. No pharmaceutical industry or institutional sponsors participated in the study conception and design, data collection, analysis and interpretation of the results, or drafting of the manuscript. This work was supported by: SAF2016- 76046-R and SAF2013-46292-R (MINECO and FEDER) to B.C.F.Acknowledgments: We are highly indebted to the participants and their families for their cooperation in this study. We also thank IDIVAL biobank (Ines Santiuste and Jana Arozamena) for clinical samples and ́ data as well as the PAFIP members (Marga Corredera) for the data collection. We kindly thank all clinical staff at the Hospital Universitario Virgen del Rocio for support to collect clinical records and provide clinical care to COVID-19 patients. We also kindly thank Dra. Marisa Barrigon for helpful discussions regarding clinical data analysis, and Idalino Rocha for manuscript editing and formatting. This manuscript has been released as a pre-print at medRxiv. Available at: https://doi.org/ 10.1101/2020.12.05.20244590 (Crespo-Facorro et al., 2020)

    Pathophysiology Underlying the Bimodal Edema Phenomenon After Myocardial Ischemia/Reperfusion.

    Get PDF
    BACKGROUND Post-ischemia/reperfusion (I/R) myocardial edema was recently shown to follow a consistent bimodal pattern: an initial wave of edema appears on reperfusion and dissipates at 24 h, followed by a deferred wave that initiates days after infarction, peaking at 1 week. OBJECTIVES This study examined the pathophysiology underlying this post-I/R bimodal edematous reaction. METHODS Forty instrumented pigs were assigned to different myocardial infarction protocols. Edematous reaction was evaluated by water content quantification, serial cardiac magnetic resonance T2-mapping, and histology/immunohistochemistry. The association of reperfusion with the initial wave of edema was evaluated in pigs undergoing 40-min/80-min I/R and compared with pigs undergoing 120-min ischemia with no reperfusion. The role of tissue healing in the deferred wave of edema was evaluated by comparing pigs undergoing standard 40-min/7-day I/R with animals subjected to infarction without reperfusion (chronic 7-day coronary occlusion) or receiving post-I/R high-dose steroid therapy. RESULTS Characterization of post-I/R tissue changes revealed maximal interstitial edema early on reperfusion in the ischemic myocardium, with maximal content of neutrophils, macrophages, and collagen at 24 h, day 4, and day 7 post-I/R, respectively. Reperfused pigs had significantly higher myocardial water content at 120 min and T2 relaxation times on 120 min cardiac magnetic resonance than nonreperfused animals. Permanent coronary occlusion or high-dose steroid therapy significantly reduced myocardial water content on day 7 post-infarction. The dynamics of T2 relaxation times during the first post-infarction week were altered significantly in nonreperfused pigs compared with pigs undergoing regular I/R. CONCLUSIONS The 2 waves of the post-I/R edematous reaction are related to different pathophysiological phenomena. Although the first wave is secondary to reperfusion, the second wave occurs mainly because of tissue healing processes.S

    Phenotypic characteristics and copy number variants in a cohort of colombian patients with vacterl association

    Get PDF
    Q4Q2VACTERL association (OMIM 192350) is a heterogeneous clinical condition characterized by congenital structural defects that include at least 3 of the following features: vertebral abnormalities, anal atresia, heart defects, tracheoesophageal fistula, renal malformations, and limb defects. The nonrandom occurrence of these malformations and some familial cases suggest a possible association with genetic factors such as chromosomal alterations, gene mutations, and inherited syndromes such as Fanconi anemia (FA). In this study, the clinical phenotype and its relationship with the presence of chromosomal abnormalities and FA were evaluated in 18 patients with VACTERL association. For this, a G-banded karyotype, array-comparative genomic hybridization, and chromosomal fragility test for FA were performed. All patients (10 female and 8 male) showed a broad clinical spectrum: 13 (72.2%) had vertebral abnormalities, 8 (44.4%) had anal atresia, 14 (77.8%) had heart defects, 8 (44.4%) had esophageal atresia, 10 (55.6%) had renal abnormalities, and 10 (55.6%) had limb defects. Chromosomal abnormalities and FA were ruled out. In 2 cases, the finding of microalterations, namely del(15)(q11.2) and dup(17)(q12), explained the phenotype; in 8 cases, copy number variations were classified as variants of unknown significance and as not yet described in VACTERL. These variants comprise genes related to important cellular functions and embryonic development.N/

    Dynamic Edematous Response of the Human Heart to Myocardial Infarction Implications for Assessing Myocardial Area at Risk and Salvage

    Get PDF
    BACKGROUND: Clinical protocols aimed to characterize the post-myocardial infarction (MI) heart by cardiac magnetic resonance (CMR) need to be standardized to take account of dynamic biological phenomena evolving early after the index ischemic event. Here, we evaluated the time course of edema reaction in patients with ST-segment-elevation MI by CMR and assessed its implications for myocardium-at-risk (MaR) quantification both in patients and in a large-animal model. METHODS: A total of 16 patients with anterior ST-segment-elevation MI successfully treated by primary angioplasty and 16 matched controls were prospectively recruited. In total, 94 clinical CMR examinations were performed: patients with ST-segment-elevation MI were serially scanned (within the first 3 hours after reperfusion and at 1, 4, 7, and 40 days), and controls were scanned only once. T2 relaxation time in the myocardium (T2 mapping) and the extent of edema on T2-weighted short-tau triple inversion-recovery (ie, CMR-MaR) were evaluated at all time points. In the experimental study, 20 pigs underwent 40-minute ischemia/reperfusion followed by serial CMR examinations at 120 minutes and 1, 4, and 7 days after reperfusion. Reference MaR was assessed by contrast-multidetector computed tomography during the index coronary occlusion. Generalized linear mixed models were used to take account of repeated measurements. RESULTS: In humans, T2 relaxation time in the ischemic myocardium declines significantly from early after reperfusion to 24 hours, and then increases up to day 4, reaching a plateau from which it decreases from day 7. Consequently, edema extent measured by T2-weighted short-tau triple inversion-recovery (CMR-MaR) varied with the timing of the CMR examination. These findings were confirmed in the experimental model by showing that only CMR-MaR values for day 4 and day 7 postreperfusion, coinciding with the deferred edema wave, were similar to values measured by reference contrast-multidetector computed tomography. CONCLUSIONS: Post-MI edema in patients follows a bimodal pattern that affects CMR estimates of MaR. Dynamic changes in post-ST-segment-elevation MI edema highlight the need for standardization of CMR timing to retrospectively delineate MaR and quantify myocardial salvage. According to the present clinical and experimental data, a time window between days 4 and 7 post-MI seems a good compromise solution for standardization. Further studies are needed to study the effect of other factors on these variables.This study was partially supported by a competitive grant from the Spanish Society of Cardiology (Proyectos de Investigacion Traslacional en Cardiologia de la Sociedad Espanola de Cardiologia 2015, for the project Caracterizacion tiSUlar miocaRdica con resonancia magnetica en pacientes tras inFarto agudo de mioCardio con elevacioN de ST sometidos a angloplastia Coronaria primaria. Estudio SURF-CNIC), by a competitive grant from the Carlos III Institute of Health-Fondo de Investigacion Sanitaria- and the European Regional Development Fund (ERDF/FEDER) (PI10/02268 and PI13/01979), the Spanish Ministry of economy, industry, and competitiveness (MEIC) and ERDF/FEDER SAF2013-49663-EXP. Dr Fernandez-Jimenez holds a FICNIC fellowship from the Fundacio Jesus Serra, the Fundacion Interhospitalaria de Investigacion Cardiovascular, and the Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC), and Dr Aguero is a FP7-PEOPLE-2013-ITN-Cardionext fellow. This study forms part of a Master Research Agreement between the CNIC and Philips Healthcare, and is part of a bilateral research program between Hospital de Salamanca Cardiology Department and the CNIC. This research program is part of an institutional agreement between FIIS-Fundacion Jimenez Diaz and CNIC. The CNIC is supported by the MEIC and the Pro CNIC Foundation, and is a Severo Ochoa Center of Excellence (MEIC award SEV-2015-0505).S
    corecore