27 research outputs found
Bio-guided optimization of the ultrasound-assisted extraction of compounds from Annona glabra L. leaves using the etiolated wheat coleoptile bioassay
A bio-guided optimization of the extraction of bioactive components from Annona glabra leaves has been developed using the etiolated wheat coleoptile bioassay as the control method. The optimization of an ultrasound-assisted extraction of bioactive compounds using allelopathy results as target values has been carried out for the first time. A two-level fractional factorial experimental design was applied to optimize the ultrasound-assisted extraction. The solvent was the extraction variable that had the most marked effect on the resulting bioactivity of the extracts in the etiolated wheat coleoptile bioassay. Extraction time, extraction temperature and the size of the ultrasonic probe also influenced the bioactivity of the extracts. A larger scale extraction was carried out in the next step in the allelopathic study, i.e., the isolation of compounds from the bioactive extract and chemical characterization by spectroscopic techniques, including NMR. Eight compounds were isolated and identified from the active extracts, namely
two steroids (β-sistosterol and stigmasterol), five diterpenes with the kaurane skeleton (ent-kaur-16-en-19-oic acid, ent-19-methoxy-19-oxokauran-17-oic acid, annoglabasin B, ent-17-hydroxykaur-15-en-19-oic acid and ent-15β,16β-epoxy-17-hydroxy-kauran-19-oic acid) and the acetogenin asimicin. The most active compound was annoglabasin B, which showed inhibition with values of -95% at 10-3 M, -87% at 5 - 10-4 M and greater than -70% at 10-4 M in the etiolated wheat coleoptile bioassay
Animal-assisted interventions in sport sciences: a proposal for its inclusion among physical activities in the natural environment
Las intervenciones asistidas con animales (IAA), en sus diferentes formas, han
mostrado beneficios en las personas a diferentes niveles. En España,
profesionales de diferentes ámbitos llevan a cabo este tipo de intervenciones,
destacando la ausencia de profesionales de las ciencias del deporte (CAFYD).
Este artículo tiene como objetivo valorar la pertinencia del profesional de
CAFYD en las IAA, y más concretamente, dentro de las actividades físicas en
la naturaleza. La metodología se ha centrado en la realización de una revisión
sistemática de la literatura científica sobre sus beneficios en la condición
física. A continuación, se realizó un análisis crítico sobre la relación entre las
IAA y las CAFYD para, posteriormente, desarrollar la posible inclusión de las
IAA como actividades físicas en el medio natural, de acuerdo con las
diferentes clasificaciones existentes y atendiendo a las características propias
de este tipo de actividades. Los resultados de la revisión de revisiones
mostraron que las IAA tienen numerosos beneficios a nivel físico (equilibrio,
movilidad o marcha), lo cual estaría relacionado con el componente motriz
de las IAA y justificaría la presencia de profesionales en CAFYD. Además, la
interacción humano-animal podría relacionarse también con los beneficios
descritos mediante el concepto de biofilia, presente en las actividades físicas
en la naturalezaAnimal-assisted interventions (AAI) have shown different types of benefits in people. In Spain,
professionals from different fields carry out this type of interventions, but the absence of sports science
professionals (CAFYD) is remarkable. This article aims to screen the relevance of the CAFYD professional
in AAI and, more specifically, within the framework of the physical activities in the natural environment.
The methods included a systematic review of the scientific literature on the benefits in physical fitness.
Then, a critical analysis of the relationship between AAI and CAFYD was carried out, to subsequently
develop the possible inclusion of AAI as physical activities in the natural environment, according to the
different existing classifications and taking into account the characteristics of this type of activities. The
results of the review showed that AAI have several physical benefits (balance, mobility or gait), which
would be related to the motor component of AAI and would justify the presence of professionals in
CAFYD. In addition, human-animal interaction could also be related to the benefits described through
the concept of biophilia, present in physical activities in the natural environmen
Proyecto para la mejora de la empleabilidad mediante el alineamiento de las competencias de los títulos de la Facultad de Economía y Empresa
Memoria ID-0143. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2016-2017
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
Megaproyectos urbanos y productivos. Impactos socio-territoriales
El desarrollo de megaproyectos productivos trae consigo oportunidades para el crecimiento económico, la generación de empleos y el desarrollo regional. No obstante, en la actualidad, los grandes temas como la expansión urbana, el desarrollo industrial, las cementeras, la minería, el uso intensivo del agua y demás recursos naturales, preocupan a las comunidades por los impactos generados y porque en lo general, no consideran la racionalidad y responsabilidad ambiental y social hacia el entorno. En este contexto son diversos los estudios científicos que, en el marco de la política de económica imperante, intentan posicionarse como alternativas a proyectos económicos que confrontan los intereses particulares y comunitarios y que afectan la salud humana y ambiental. Megaproyectos urbanos y productivos. Impactos socio-territoriales, reúne veinticinco textos académicos sobre las afectaciones que éstos emprendimientos tienen para la sociedad y el entorno. Los temas expuestos recogen experiencias en el desarrollo urbano, industrial, turístico, portuario y aeroportuario, entre otros. Así mismo se retoman temas como la ética, la dialéctica, la política y la economía y su relación en el emprendimiento de megaproyectos. La búsqueda de esquemas productivos racionales y responsables con el entorno, que reivindiquen el derecho de las comunidades a un medio ambiente sano, a la preservación del territorio y sus recursos y de las formas de vida tradicionales, son los referentes para la realización del presente libro. Como elemento central se concibe el territorio como contenedor de identidad y vida, siendo preocupación y tema de estudio de la comunidad académica, las organizaciones de la sociedad civil y las redes de activistas organizados.UAEM, CONACyT, se
Evolving trends in the management of acute appendicitis during COVID-19 waves. The ACIE appy II study
Background: In 2020, ACIE Appy study showed that COVID-19 pandemic heavily affected the management of patients with acute appendicitis (AA) worldwide, with an increased rate of non-operative management (NOM) strategies and a trend toward open surgery due to concern of virus transmission by laparoscopy and controversial recommendations on this issue. The aim of this study was to survey again the same group of surgeons to assess if any difference in management attitudes of AA had occurred in the later stages of the outbreak.
Methods: From August 15 to September 30, 2021, an online questionnaire was sent to all 709 participants of the ACIE Appy study. The questionnaire included questions on personal protective equipment (PPE), local policies and screening for SARS-CoV-2 infection, NOM, surgical approach and disease presentations in 2021. The results were compared with the results from the previous study.
Results: A total of 476 answers were collected (response rate 67.1%). Screening policies were significatively improved with most patients screened regardless of symptoms (89.5% vs. 37.4%) with PCR and antigenic test as the preferred test (74.1% vs. 26.3%). More patients tested positive before surgery and commercial systems were the preferred ones to filter smoke plumes during laparoscopy. Laparoscopic appendicectomy was the first option in the treatment of AA, with a declined use of NOM.
Conclusion: Management of AA has improved in the last waves of pandemic. Increased evidence regarding SARS-COV-2 infection along with a timely healthcare systems response has been translated into tailored attitudes and a better care for patients with AA worldwide
Insights on the disruption of glucose metabolism and hepatic insulin resistance induced by hepatitis C virus
Hepatitis C virus (HCV) is still considered as a major public health problem because in 2015 around 71 million people were chronically infected worldwide. It is important to note that chronic HCV infection is a systemic disease that is associated with diverse extrahepatic disorders including insulin resistance and type 2 diabetes mellitus. The discovery of new direct-acting antiviral agents (DAAs) has become a huge advance in the treatment of HCV infection. The complex interplay between HCV and glucose metabolic pathways remains to be fully elucidated, but it is becoming clearer that elimination of chronic HCV infection halts the progression of liver disease, but more evidence is still needed to better understand how successful antiviral treatment influences insulin resistance and other abnormalities of glucose metabolism linked to HCV infection. This review provides a comprehensive overview of the glucose metabolism disturbances related to chronic HCV infection, highlighting the new insights into the molecular basis of insulin resistance induced by HCV and the mechanisms underlying the reversion of this metabolic disorder by DAAs
Effects of a Multicomponent Programme for Improving Physical and Psychological Health in Victims of Intimate Partner Violence: Study Protocol for a Randomised Control Trial
Intimate partner violence (IPV) is a public health problem that psychologically and physically affects the women who suffer from it. In this article, we propose an intervention protocol based on therapeutic tourism through adventure physical activities and psychological therapy that could improve the psychological and physical health of women participants. We propose a randomized study where participants will be separated into two groups, control and experimental, and we will perform measurements including self-concept, self-image, depression, and perceived stress, combining these with physiological measurements of stress level by determining stress-related hormones (Cortisol and DHEA), as well as the overall cost-effectiveness of the program. All data collected at the end of the protocol will be statistically analysed. If the final data are positive and it is feasible, this protocol could be proposed as a measure for the treatment of the sequelae of victims of gender violence
Effects of a Multicomponent Programme for Improving Physical and Psychological Health in Victims of Intimate Partner Violence: Study Protocol for a Randomised Control Trial
Intimate partner violence (IPV) is a public health problem that psychologically and physically affects the women who suffer from it. In this article, we propose an intervention protocol based on therapeutic tourism through adventure physical activities and psychological therapy that could improve the psychological and physical health of women participants. We propose a randomized study where participants will be separated into two groups, control and experimental, and we will perform measurements including self-concept, self-image, depression, and perceived stress, combining these with physiological measurements of stress level by determining stress-related hormones (Cortisol and DHEA), as well as the overall cost-effectiveness of the program. All data collected at the end of the protocol will be statistically analysed. If the final data are positive and it is feasible, this protocol could be proposed as a measure for the treatment of the sequelae of victims of gender violence