Wild Fragaria vesca L. fruits: a rich source of bioactive phytochemicals

Wild Fragaria vesca L. fruits were studied regarding nutritional and phytochemical compounds, and also antioxidant, antibacterial and biofilm formation inhibition activities. The fruits are good sources of carbohydrates (e.g., sucrose), soluble dietary fiber and polyunsaturated fatty acids, mainly linoleic and linolenic acids, as well as other components such as citric and succinic acids, and vitamins B9 and E (mainly γ-tocopherol). Significant amounts of soluble sugars, citric acid and some amounts of ascorbic acid, vitamins B9 and E (only α-tocopherol) were found also in the infusions. The hydromethanolic extracts revealed higher amounts of phenolic compounds, mainly ellagic acid derivatives and dihydroflavonol taxifolin-3-O-arabinofuranoside. Consistently, these extracts also showed higher antioxidant and antibacterial activities than the infusions, and were able to inhibit the formation of bacterial biofilms. Despite the lower content of bioactive compounds in the infusions compared to the fruits, both forms could be potentially applied in functional foods and/or nutraceuticals/pharmaceutical formulations.info:eu-repo/semantics/publishedVersio

Stability of total folates/vitamin B9 in irradiated watercress and buckler sorrel during refrigerated storage

The suitability of post-packaging gamma radiation treatment for preserving total folates or vitamin B9 in watercress (Nasturtium officinale R. Br.) and buckler sorrel (Rumex induratus Boiss. & Reut.) during storage at 4 °C was evaluated. Comparable amounts of total folates were found in fresh, non-stored samples of both species. In watercress, the irradiation treatment of up to 5 kGy reduced the loss of total folates caused by 7 days of storage. In turn, the 12-day storage period did not affect the total folate content of buckler sorrel (while the 2 kGy dose decreased the initial levels), evidencing that packaging and refrigeration are enough for preservation. These results suggest that the suitability of post-packaging irradiation for preserving total folates may depend not only on the applied dose but also on the plant matrix under analysis. In addition, new data useful to complete food composition tables or databases is provided.The authors are grateful to the Foundation for Science and Technology ( FCT , Portugal) and FEDER under Programme PT2020 for financial support to CIMO ( UID/AGR/00690/2013 ), REQUIMTE/LAQV ( UID/QUI/50006/2013 – POCI/01/0145/FERDER/007265) and C2TN ( UID/Multi/04349/2013 ) and the Grant of J. Pinela (UID/AGR/00690/2013_DNAABN); and to the ALIMNOVA Research Group (Project UCM-252/2017).info:eu-repo/semantics/publishedVersio

Regulation of the transcriptional program by DNA methylation during human αβ T-cell development

© The Author(s) 2015. Published by Oxford University Press on behalf of Nucleic Acids Research. Thymocyte differentiation is a complex process involving well-defined sequential developmental stages that ultimately result in the generation of mature T-cells. In this study, we analyzed DNA methylation and gene expression profiles at successive human thymus developmental stages. Gain and loss of methylation occurred during thymocyte differentiation, but DNA demethylation was much more frequent than de novo methylation and more strongly correlated with gene expression. These changes took place in CpG-poor regions and were closely associated with T-cell differentiation and TCR function. Up to 88 genes that encode transcriptional regulators, some of whose functions in T-cell development are as yet unknown, were differentially methylated during differentiation. Interestingly, no reversion of accumulated DNA methylation changes was observed as differentiation progressed, except in a very small subset of key genes (RAG1, RAG2, CD8A, PTCRA, etc.), indicating that methylation changes are mostly unique and irreversible events. Our study explores the contribution of DNA methylation to T-cell lymphopoiesis and provides a fine-scale map of differentially methylated regions associated with gene expression changes. These can lay the molecular foundations for a better interpretation of the regulatory networks driving human thymopoiesis.Plan Nacional de [I+D+I 2008–2011]; Instituto de Salud Carlos III [grant number PI12/02587]; Red Española de Investigación Renal (REDinREN) [grant number RD12/0021/0018 and RD12/0021/0021]; Spanish Ministry of Science and Innovation [grant number SAF2010- 15106 and PLE2009-0110]; European Union [Fondos FEDER]Peer Reviewe

Influence of the Cumulative Incidence of COVID-19 Cases on the Mental Health of the Spanish Out-of-Hospital Professionals

This study aimed to analyze the psychological affectation of health professionals (HPs) of Spanish Emergency Medical Services (EMSs) according to the cumulative incidence (CI) of COVID19 cases in the regions in which they worked. A cross-sectional descriptive study was designed, including all HPs working in any EMS of the Spanish geography between 1 February 2021 and 30 April 2021. Their level of stress, anxiety and depression (DASS-21) and the perception of self-efficacy (GSES) were the study’s main results. A 2-factor analysis of covariance was used to determine if the CI regions of COVID-19 cases determined the psychological impact on each of the studied variables. A total of 1710 HPs were included. A third presented psychological impairment classified as severe. The interaction of CI regions with the studied variables did not influence their levels of stress, anxiety, depression or self-efficacy. Women, younger HPs or those with less EMS work experience, emergency medical technicians (EMT), workers who had to modify their working conditions or those who lived with minors or dependents suffered a greater impact from the COVID-19 pandemic in certain regions. These HPs have shown high levels of stress, anxiety, depression and medium levels of self-efficacy, with similar data in the different geographical areas. Psychological support is essential to mitigate their suffering and teach them to react to adverse events.This research was funded by Fundación ASISA and Sociedad Española de Urgencias y Emergencias (SEMES)

Transferencia de investigaciones virológicas a sectores educativos y generales de la comunidad

La educación es la única y verdadera herramienta válida, por excelencia, para lograr cambios positivos en la historia, en la política, en la salud o en cualquiera otro aspecto importante de la vida de los hombres. Entonces, deberíamos insistir en mejorar la calidad educativa de los ciudadanos y alumnos de todos los niveles, mejorando necesariamente la actualización de los saberes de los funcionarios, profesionales y docentes para que se inscriba en el discurso cotidiano. El desconocer, no prepararse, nos lleva a crisis sociales que inevitablemente incrementan flagelos como la pobreza, la pérdida de biodiversidad, las guerras, las epidemias, entre otros. Así, desde donde se produce y construye el conocimiento científico, la Universidad Nacional de Córdoba, Facultad de Ciencias Médicas y específicamente el Instituto de Virología "Dr. José María Vanella" también se promueve el objetivo de extensión comunitaria, brindando este proyecto a docentes, alumnos y comunidad en general de la provincia de Córdoba como servicio educativo y actualización. Las temáticas son variadas, los talleres convocan a la Divulgación científica y tecnológica de infecciones virales de importancia sanitaria su conocimiento, prevención y difusión, no solo para el sector educativo sino también para la comunidad en general. Las actividades son talleres, conferencias, laboratorios, jornadas de un día hasta dos semanas. Las metodologías aplicadas son charlas dialogadas, vídeos, dinámica de grupos, Hay evaluaciones de seguimiento a través de comentarios, relatos, encuestas. Todas las actividades de extensión del InViV cuentan con la aprobación de la Facultad Ciencias Médicas a través de las Res. Decanales anuales.Fil: Balangero, Marcos. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Gil, Pedro Ignacio: Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Gil, Pedro Ignacio: Universidad Nacional de Córdoba. Secretaría de Ciencia y Tecnología; ArgentinaFil: Frutos: María Cecilia: Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Frutos: María Cecilia: Universidad Nacional de Córdoba. Secretaría de Ciencia y Tecnología; ArgentinaFil: Díaz, Luis Adrián. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Ré, Viviana. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Farias, Adrián Alejandro. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Spinsanti, Lorena. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Venezuela, Raúl Fernando. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Kiguen, Ana Ximena. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Konigheim, Brenda. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Pisano, María Belén. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil:Masachessi, Gisela. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Barril, Patricia Angélica. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Varella"; Argentina.Fil: Barril, Patricia Angelica. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Estudios en Comunicación, Expresión y Tecnologías; Argentina.Fil: Castro, Gonzalo. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Batallán, Pedro Gonzalo. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Batallán, Pedro Gonzalo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Estudios en Comunicación, Expresión y Tecnologías; Argentina.Fil: Quaglia, Agustín.Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Tauro, Laura Beatriz. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Tauro, Laura Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Estudios en Comunicación, Expresión y Tecnologías; Argentina.Fil: Flores, Fernando Sebastián. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Flores, Fernando Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Estudios en Comunicación, Expresión y Tecnologías; Argentina.Fil: Beranek, Mauricio. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Beranek, Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Estudios en Comunicación, Expresión y Tecnologías; Argentina.Fil: Maturano, Eduardo. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Rodríguez, Pamela Elizabeth. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Cámara, Jorge Augusto. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil, Albrieu Llinás, Guillermo. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil, Albrieu Llinás, Guillermo. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Estudios en Comunicación, Expresión y Tecnologías; Argentina.Fil: Adamo, María Pilar. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Ghietto, Lucía María. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Ghietto, Lucía María. Universidad Nacional de Córdoba. Secretaría de Ciencia y Tecnología; ArgentinaFil: Pedranti, Mauro Sebastián. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Giordano, Miguel Oscar. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Martínez, Laura Cecilia.Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Isa, Maria Beatriz. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Ascheri, Stella Maris. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Paredes, Norma Gladys. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Contigiani, Marta Silvia. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Benítez, Marta. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Theiler, Gerardo. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Augello, Marysol. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Fosatti, L. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; ArgentinaFil:Moreno, F. Colegio San Martín; Argentina.Fil:Marín, M. Colegio Nuestra Señora del Sagrado Corazón; Argentina.Fil: Carreras, G. Provincia de Córdoba. Ipem 323 de Villa Angelelli; Argentina.Fil: Navarro, A. Provincia de Córdoba. Ipem 323 de Villa Angelelli; Argentina.Fil: Fuentes, M. Provincia de Córdoba. Ipem 323 de Villa Angelelli; Argentina.Fil: Santiago, T. Provincia de Córdoba. Ipem 323 de Villa Angelelli; Argentina.Fil: Cámara, Alicia. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Paglini, María Gabriela. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Cuffini, Cecilia. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Gallego, Sandra Verónica.Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Aguilar, Javier. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Paván, Jorge. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Fil: Nates, Silvia Viviana. Universidad Nacional de Córdoba. Facultad de Ciencias Médicas. Instituto de Virología "Dr. José María Vanella"; Argentina.Enfermedades Infecciosa

CIBERER : Spanish national network for research on rare diseases: A highly productive collaborative initiative

Altres ajuts: Instituto de Salud Carlos III (ISCIII); Ministerio de Ciencia e Innovación.CIBER (Center for Biomedical Network Research; Centro de Investigación Biomédica En Red) is a public national consortium created in 2006 under the umbrella of the Spanish National Institute of Health Carlos III (ISCIII). This innovative research structure comprises 11 different specific areas dedicated to the main public health priorities in the National Health System. CIBERER, the thematic area of CIBER focused on rare diseases (RDs) currently consists of 75 research groups belonging to universities, research centers, and hospitals of the entire country. CIBERER's mission is to be a center prioritizing and favoring collaboration and cooperation between biomedical and clinical research groups, with special emphasis on the aspects of genetic, molecular, biochemical, and cellular research of RDs. This research is the basis for providing new tools for the diagnosis and therapy of low-prevalence diseases, in line with the International Rare Diseases Research Consortium (IRDiRC) objectives, thus favoring translational research between the scientific environment of the laboratory and the clinical setting of health centers. In this article, we intend to review CIBERER's 15-year journey and summarize the main results obtained in terms of internationalization, scientific production, contributions toward the discovery of new therapies and novel genes associated to diseases, cooperation with patients' associations and many other topics related to RD research

El reto de la inclusión de los Objetivos de Desarrollo Sostenible en la formación inicial de profesores de secundaria: creación del MOOC curso cero sobre educación y ODS, inclusión en asignaturas y en trabajos fin de máster

Memoria ID-041. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2021-2022

Culturable diversity and antimicrobial activity of Actinobacteria from marine sediments in Valparaíso bay, Chile

Marine-derived Actinobacteria are a source of a broad variety of secondary metabolites with diverse biological activities, such as antibiotics and antitumorals; many of which have been developed for clinical use. Rare Actinobacteria represent an untapped source of new bioactive compounds that have been scarcely recognized. In this study, rare Actinobacteria from marine sediments were isolated from the Valparaíso bay, Chile, and their potential to produce antibacterial compounds was evaluated. Different culture conditions and selective media that select the growth of Actinobacteria were used leading to the isolation of 68 bacterial strains. Comparative analysis of the 16S rRNA gene sequences led to identifying isolates that belong to the phylum Actinobacteria with genetic affiliations to 17 genera: Aeromicrobium, Agrococcus, Arthrobacter, Brachybacterium, Corynebacterium, Dietzia, Flaviflexus, Gordonia, Isoptericola, Janibacter, Microbacterium, Mycobacterium, Ornithinimicrobium, Pseudonocardia, Rhodococcus, Streptomyces and Tessaracoccus. Also, one isolate could not be consistently classified and formed a novel phylogenetic branch related to the Nocardiopsaceae family. The antimicrobial activity of these isolates was evaluated, demonstrating the capability of specific novel isolates to inhibit the growth of Gram-positive and Gram-negative bacteria. In conclusion, this study shows a rich biodiversity of culturable Actinobacteria, associated to marine sediments from Valparaíso bay, highlighting novel rare Actinobacteria, and their potential for the production of biologically active compounds

Characterization of a Gene Cluster Involved in 4-Chlorocatechol Degradation by Pseudomonas reinekei MT1▿

Pseudomonas reinekei MT1 has previously been reported to degrade 4- and 5-chlorosalicylate by a pathway with 4-chlorocatechol, 3-chloromuconate, 4-chloromuconolactone, and maleylacetate as intermediates, and a gene cluster channeling various salicylates into an intradiol cleavage route has been reported. We now report that during growth on 5-chlorosalicylate, besides a novel (chloro)catechol 1,2-dioxygenase, C12OccaA, a novel (chloro)muconate cycloisomerase, MCIccaB, which showed features not yet reported, was induced. This cycloisomerase, which was practically inactive with muconate, evolved for the turnover of 3-substituted muconates and transforms 3-chloromuconate into equal amounts of cis-dienelactone and protoanemonin, suggesting that it is a functional intermediate between chloromuconate cycloisomerases and muconate cycloisomerases. The corresponding genes, ccaA (C12OccaA) and ccaB (MCIccaB), were located in a 5.1-kb genomic region clustered with genes encoding trans-dienelactone hydrolase (ccaC) and maleylacetate reductase (ccaD) and a putative regulatory gene, ccaR, homologous to regulators of the IclR-type family. Thus, this region includes genes sufficient to enable MT1 to transform 4-chlorocatechol to 3-oxoadipate. Phylogenetic analysis showed that C12OccaA and MCIccaB are only distantly related to previously described catechol 1,2-dioxygenases and muconate cycloisomerases. Kinetic analysis indicated that MCIccaB and the previously identified C12OsalD, rather than C12OccaA, are crucial for 5-chlorosalicylate degradation. Thus, MT1 uses enzymes encoded by a completely novel gene cluster for degradation of chlorosalicylates, which, together with a gene cluster encoding enzymes for channeling salicylates into the ortho-cleavage pathway, form an effective pathway for 4- and 5-chlorosalicylate mineralization

A Gene Cluster Involved in Degradation of Substituted Salicylates via ortho Cleavage in Pseudomonas sp. Strain MT1 Encodes Enzymes Specifically Adapted for Transformation of 4-Methylcatechol and 3-Methylmuconate

Pseudomonas sp. strain MT1 has recently been reported to degrade 4- and 5-chlorosalicylate by a pathway assumed to consist of a patchwork of reactions comprising enzymes of the 3-oxoadipate pathway. Genes encoding the initial steps in the degradation of salicylate and substituted derivatives were now localized and sequenced. One of the gene clusters characterized (sal) showed a novel gene arrangement, with salA, encoding a salicylate 1-hydroxylase, being clustered with salCD genes, encoding muconate cycloisomerase and catechol 1,2-dioxygenase, respectively, and was expressed during growth on salicylate and chlorosalicylate. A second gene cluster (cat), exhibiting the typical catRBCA arrangement of genes of the catechol branch of the 3-oxoadipate pathway in Pseudomonas strains, was expressed during growth on salicylate. Despite their high sequence similarities with isoenzymes encoded by the cat gene cluster, the catechol 1,2-dioxygenase and muconate cycloisomerase encoded by the sal cluster showed unusual kinetic properties. Enzymes were adapted for turnover of 4-chlorocatechol and 3-chloromuconate; however, 4-methylcatechol and 3-methylmuconate were identified as the preferred substrates. Investigation of the substrate spectrum identified 4- and 5-methylsalicylate as growth substrates, which were effectively converted by enzymes of the sal cluster into 4-methylmuconolactone, followed by isomerization to 3-methylmuconolactone. The function of the sal gene cluster is therefore to channel both chlorosubstituted and methylsubstituted salicylates into a catechol ortho cleavage pathway, followed by dismantling of the formed substituted muconolactones through specific pathways