Search results for "virome"
showing 10 items of 40 documents
Danno all'ambiente e tutela della persona
2012
Il libro propone una riflessione sul danno ambientale, inquadrandola nella più ampia prospettiva della tutela della persona, alla quale la figura del danno ambientale sembra potersi ascrivere. Delineata la disciplina in tema di danno all'ambiente, quale emergente dal lungo iter normativo, dottrinale e giurisprudenziale, che ne ha segnato la sua evoluzione, emerge l'idea di un danno ambientale, che potrebbe definirsi esistenziale, in grado di suggerire riflessioni interessanti, tanto in tema di responsabilità ambientale, quanto riguardo all'area del danno alla persona. La parabola del danno ambientale, se continua forse oggi ad evocare pericolosi "mostriciattoli", è figlia della storia di un…
Direct sequencing of human gut virome fractions obtained by flow cytometry
2015
The sequence assembly of the human gut virome encounters several difficulties. A high proportion of human and bacterial matches is detected in purified viral samples. Viral DNA extraction results in a low DNA concentration, which does not reach the minimal limit required for sequencing library preparation. Therefore, the viromes are usually enriched by whole genome amplification, which is, however, prone to the development of chimeras and amplification bias. In addition, as there is a very wide diversity of gut viral species, very extensive sequencing efforts must be made for the assembling of whole viral genomes. We present an approach to improve human gut virome assembly by employing a mo…
Advanced microscopy analysis of the micro-nanoscale architecture of human menisci
2019
AbstractThe complex inhomogeneous architecture of the human meniscal tissue at the micro and nano scale in the absence of artefacts introduced by sample treatments has not yet been fully revealed. The knowledge of the internal structure organization is essential to understand the mechanical functionality of the meniscus and its relationship with the tissue’s complex structure. In this work, we investigated human meniscal tissue structure using up-to-date non-invasive imaging techniques, based on multiphoton fluorescence and quantitative second harmonic generation microscopy complemented with Environmental Scanning Electron Microscopy measurements. Observations on 50 meniscal samples extract…
Long-Term Remission Achieved by Ponatinib and Donor Lymphocytes Infusion in a Ph+ Acute Lymphoblastic Leukemia Patient in Molecular Relapse After All…
2020
Currently, the prognosis of Ph+ acute lymphoblastic leukemia (Ph+ ALL) patients relapsing after an allogenic hematopoietic stem cell transplantation (allo-SCT) remains poor, with few therapeutic options available. Here we present the case of a 32 years old patient with dasatinib-resistant post-transplant molecular relapse of ALL, who received, as second-line therapy, the combination of ponatinib and donor lymphocyte infusion (DLI). The therapy was safe and the patient achieved a sustained minimal residual disease negative disease, still ongoing after 22 months, which was accompanied by several changes in the immune populations distribution within the bone marrow (i.e., the increase in the C…
γδ cells and tumor microenvironment: A helpful or a dangerous liason?
2017
Abstract γδ T cells are a subset of T lymphocytes that have been implicated in immunosurveillance against infections and tumors. γδ T cells are endowed with antitumor activities, and hence several γδ T cell-based small-scale clinical trials have been conducted either by in vivo activation by intravenous administration of aminobiphosphonates or by adoptive transfer of in vitro expanded γδ T cells. Although both these strategies have yielded promising results, there are a number of limitations associated with each of them which, if overcome may help to further improve efficacy. One of the most important limits is the possible polarization of tumor-infiltrating γδ T cells toward different γδ T…
Beyond cells – The virome in the human holobiont
2019
Viromics, or viral metagenomics, is a relatively new and burgeoning field of research that studies the complete collection of viruses forming part of the microbiota in any given niche. It has strong foundations rooted in over a century of discoveries in the field of virology and recent advances in molecular biology and sequencing technologies. Historically, most studies have deconstructed the concept of viruses into a simplified perception of viral agents as mere pathogens, which demerits the scope of large-scale viromic analyses. Viruses are, in fact, much more than regular parasites. They are by far the most dynamic and abundant entity and the greatest killers on the planet, as well as th…
Diseño e implementación de una aplicación en Processing para la representación visual de datos multidimensionales utilizando técnicas de Minería de D…
2015
La posibilidad de disponer de representaciones gráficas de los datos es de gran valor a la hora de extraer conocimiento útil. Sus principales ventajas son la visualización de información de una forma sencilla, rápida y directa. No obstante, muchos de los conjuntos de datos contienen numerosos registros, que pueden ser de naturaleza multivariante. En estos casos, la representación visual de datos se convierte en una tarea complicada y las técnicas clásicas que suelen utilizarse obtienen resultados poco intuitivos. Esta tesis se plantea como objetivo el diseño e implementación de una aplicación versátil capaz de representar visualmente gran cantidad de datos multidimensionales de forma eficaz…
El problema de la generación de residuos urbanos entre los contenidos de geografía de la enseñanza secundaria obligatoria
2002
Una de las características del problema de los Residuos Urbanos en nuestro país es la escasa conciencia ambiental de los ciudadanos. En este trabajo se exponen las grandes posibilidades que ofrece el currículo del Área de “Ciencias Sociales, Geografía e Historia” de la Enseñanza Secundaria Obligatoria (E.S.O.) para llevar a cabo acciones de Educación Ambiental, destacando así la capacidad de los profesores de Geografía para intentar mejorar la situación actual. Solid wastes generation problem into Secondary School Geography´s contents Citizenship’s low environmental conscience is a characteristic of Solid Wastes situation in Spain. In this paper, “Social Sciences, Geography and History” cur…
The respiratory virome in chronic obstructive pulmonary disease
2018
Aim: To characterize the respiratory virome in moderate/severe chronic obstructive pulmonary disease (COPD) patients using metagenomics, with healthy subjects as the reference. Patients & Methods: Sputum COPD samples were collected during stability and exacerbations with negative usual-care microbiologic analysis. Results: Eukaryotic viruses from the Anelloviridae, Herpesviridae and Retroviridae families and phages from the Shiphoviridae family were commonly found in COPD, and the respiratory virome in stability and noninfectious exacerbations showed a substantial similarity. DNA viruses with the highest relative abundance in COPD are Anelloviridae. Conclusion: These results support a …
A Method for Isolation of the Virome from Plasma Samples
2018
Virome studies are of special interest nowadays. Understanding viral communities in different body compartments will help guide future personalized treatments and to discern between homeostasis and disease. High-throughput sequencing technologies allow us to detect all the nucleic acids present in a sample, including viral ones, by random sequencing. One of the major challenges in virome studies is the correct isolation of the viral nucleic acids from a specific sample. This can be done during the extraction steps (e.g., enrichment of viral capsids), or during the bioinformatic analysis (e.g., removing all human and bacterial sequences). Furthermore, it is an important remark that the treat…