Cultura e redes sociais : a internet - um novo espaço público

92 f.Com este trabalho propomo-nos estudar a relação existente entre cultura, tecnologia e redes sociais. No contexto actual da democratização das novas tecnologias, fará sentido realizarmos esta observação no seio de uma comunidade virtual. Com a crescente popularização das redes sociais na Internet, é nosso objectivo perceber qual o papel cultural que estas desempenham

Health-related quality of life in hereditary transthyretin amyloidosis polyneuropathy: a prospective, observational study

Background Hereditary Transthyretin Amyloidosis Polyneuropathy is a rare life-threatening neurologic disease that imposes considerable mortality and it is associated with progressive related disabilities. In this study, we aimed to assess the effect of the disease across health-related quality of life dimensions, in both carriers of the mutation and patients, to compare health-related quality of life with general population, as well as to explore health-related quality of life prognostic factors among patients, including disease progression and treatment. Methods This study was a multi-institutional, longitudinal, prospective, observational study of hereditary Transthyretin Amyloidosis Polyneuropathy Portuguese adult subjects (621 asymptomatic carriers and 733 symptomatic patients) enrolled in the Transthyretin Amyloidosis Outcomes Survey. Health-related quality of life was captured with the preference-based instrument EQ-5D-3 L. For general population the dataset included all subjects enrolled in a representative national study (n = 1500). Different econometric models were specified; multivariate probit, generalized linear model and generalized estimating equations model; including demographic and clinical covariates. Results Hereditary Transthyretin Amyloidosis Polyneuropathy patients have their health status severely impaired in all quality of life dimensions and more anxiety/depression problems were found among asymptomatic carriers. No differences on utility were found between carriers and general population (p = 0.209). Among patients, the utility value is estimated to be 0.51 (0.021), a decrement of 0.27 as compared with general population utility. Higher disease duration, advanced disease stage and not receiving treatment are associated with impaired health-related quality of life. No differences were found between genders (p = 0.910) or between late (≥50 years) and early-onset patients (p = 0.254). The utility estimate ranged from 0.63 (0.009) in stage I to 0.01 (0.005) in stage IV. Conclusions Hereditary Transthyretin Amyloidosis Polyneuropathy symptoms and progressive associated disabilities substantially decrease patient’s health-related quality of life. Clinical strategies focused on health-related quality of life preservation such as close follow-up of asymptomatic carriers, prompt diagnosis and adequate, early treatment would benefit patient’s long-term outcomes, slowing the progressive decline in health-related quality of life.info:eu-repo/semantics/publishedVersio

Uncovering biodegradability and biocompatibility of betaine-based deep eutectic systems

Funding Information: Open access funding provided by FCT|FCCN (b-on). This project has received funding from the European Union’s Horizon 2020 (European Research Council) under the grant agreement No ERC-2016-CoG 725034. This work was further supported by the Associate Laboratory for Green Chemistry- LAQV which is financed by national funds from FCT/MCTES (UIDB/50006/2020) and by the Applied Molecular Biosciences Unit UCIBIO which is financed by national funds from FCT (UIDP/04378/2020 and UIDB/04378/2020). Alexandre Paiva acknowledges FCT for the financial support through IF/01146/2015. Publisher Copyright: © 2023, The Author(s).Deep eutectic systems (DES) have shown increasing popularity in last decade; however, the number of studies on the potential toxicity towards living organisms remains scarce. These studies are of the utmost importance to infer on the claimed non-toxicity and biocompatibility of DES. Most articles published, at this moment, only evaluate the toxicity towards a cell model or in different strains of bacteria. For this purpose, in this work, the effect of two DES (betaine:sorbitol:water 1:1:3 and betaine:glycerol 1:2) and their individual components were evaluated at different concentrations after administered via intraperitoneal injection in zebrafish (Danio rerio). The total antioxidant capacity, lipoperoxidation, and the activity of various enzymes that work in different antioxidant pathways (superoxide dismutase, glutathione peroxidase, catalase, and glutathione S-transferase) were assessed. The results show no significant toxicity within the tested concentrations: up to 5000 µM and 3000 µM, for the assays using the system betaine:sorbitol:water 1:1:3 and for betaine:glycerol 1:2, respectively. The toxicity of individual components was studied up to 1000 µM. Based on the encouraging results that have been obtained, it is safe to conclude that these two deep eutectic systems can be used as the new class of environmentally friendly solvents. Graphical Abstract: [Figure not available: see fulltext.]publishersversionpublishe

Design as a process tool of collaborative and multidisciplinary learning in society

UID/HIS/04209/2013Active collaboration allows the development of synergies and tools to maintain a diversified, productive and sustainable system. In the framework of an ongoing research project having a case study (L3 Project) and the results of their activities, it was possible to retain the following data: the increase of knowledge by the exchange of skills and the improvement of the competences in a personal, civic and social perspective. The objective is to outline a strategic plan by mapping the network of interactions among all social agents that fosters the construction and rehabilitation of social cohesion. The methodology is distributed in three phases. In an initial phase with an ethnographic research, literary review and case studies; on a second phase, the characterization of the system, the strategic actions and the design of a sustainable ecosystem inserted in the urban context. In the third phase, methodologies presented through surveys and statistics validated by the local community and specialists of social and human sciences. The aim is to give continuity to the research project that already has its methodological expression, including case studies that can reinforce or not the main conclusions, improve the data collection tools for a successive iteration process to reach the best results.publishersversionpublishe

Comparative study of lipophilic and hydrophilic antioxidants from in vivo and in vitro grown Coriandrum sativum

Coriander is commonly used for medicinal purposes, food applications, cosmetics and perfumes. Herein, the production of antioxidants in vegetative parts (leaves and stems) of in vivo and in vitro grown samples was compared. In vitro samples were clone A- with notorious purple pigmentation in stems and leaves and clone B- green. Seeds were also studied as they are used to obtain in vivo and in vitro vegetative parts. Lipophilic (tocopherols, carotenoids and chlorophylls) and hydrophilic (sugars, ascorbic acid, phenolics, flavonols and anthocyanins) compounds were quantified. The antioxidant activity was evaluated by radical scavenging activity, reducing power and lipid peroxidation inhibition. The in vivo sample showed the highest antioxidant activity mainly due to its highest levels of hydrophilic compounds. Otherwise, in vitro samples, mainly clone A, gave the highest concentration in lipophilic compounds but a different profile when compared to the in vivo sample. Clones A and B revealed a lack of B-carotene, B- and δ-tocopherols, a decrease in alpha-tocopherol, and an increase in Y-tocopherol and clorophylls in comparison to the in vivo sample. In vitro culture might be useful to explore the plants potentialities for industrial applications, controlling environmental conditions to produce higher amounts of some bioactive products

Systematic comparison of nutraceuticals and antioxidant potential of cultivated, in vitro cultured and commercial Melissa officinalis samples

Melissa officinalis (lemon balm) infusions are used worldwide for digestive, analgesic and other pharmaceutical applications. Herein, the nutraceuticals production and antioxidant potential in garden cultivated, in vitro cultured and two commercial samples (bags and granulated) of lemon balm was compared. The profile of in vitro cultured lemon balm is closer of garden cultivated sample than of both commercial samples (bag or granulate). It presented the highest levels of proteins and ash, and the lowest energetic value. The most favourable n6/n3 ration, as also the highest PUFA (mostly α-linolenic acid), tocopherols (including α-, γ- and δ-isoforms) and ascorbic acid contents were also observed in this sample. Nevertheless, it was the commercial bag lemon balm that gave the highest antioxidant activity and the highest levels of phenolics and flavonoids. As far as we kwon, this is the first comparison of nutraceuticals and antioxidant potential of cultivated, in vitro cultured and commercial lemon balm samples. Moreover, it proved that in vitro culture might be used to stimulate vitamins production

Systematic Review

Funding Information: MP received support from the Portuguese National Funds through FITEC – Programa Interface, with reference CIT INOV – INESC INOVAÇÃO. Funding was also provided from the PhD program in Industrial Management, NOVA Science and Technology Faculty. Funding Information: MP and LVL acknowledge Fundação para a Ciência e a Tecnologia (FCT-MCTES) for its financial support via the project UIDB/00667/2020 (UNIDEMI).Background: The digital age, with digital sensors, the Internet of Things (IoT), and big data tools, has opened new opportunities for improving the delivery of health care services, with remote monitoring systems playing a crucial role and improving access to patients. The versatility of these systems has been demonstrated during the current COVID-19 pandemic. Health remote monitoring systems (HRMS) present various advantages such as the reduction in patient load at hospitals and health centers. Patients that would most benefit from HRMS are those with chronic diseases, older adults, and patients that experience less severe symptoms recovering from SARS-CoV-2 viral infection. Objective: This paper aimed to perform a systematic review of the literature of HRMS in primary health care (PHC) settings, identifying the current status of the digitalization of health processes, remote data acquisition, and interactions between health care personnel and patients. Methods: A systematic literature review was conducted using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analysis) guidelines to identify articles that explored interventions with HRMS in patients with chronic diseases in the PHC setting. Results: The literature review yielded 123 publications, 18 of which met the predefined inclusion criteria. The selected articles highlighted that sensors and wearables are already being used in multiple scenarios related to chronic disease management at the PHC level. The studies focused mostly on patients with diabetes (9/26, 35%) and cardiovascular diseases (7/26, 27%). During the evaluation of the implementation of these interventions, the major difficulty that stood out was the integration of information into already existing systems in the PHC infrastructure and in changing working processes of PHC professionals (83%). Conclusions: The PHC context integrates multidisciplinary teams and patients with often complex, chronic pathologies. Despite the theoretical framework, objective identification of problems, and involvement of stakeholders in the design and implementation processes, these interventions mostly fail to scale up. Despite the inherent limitations of conducting a systematic literature review, the small number of studies in the PHC context is a relevant limitation. This study aimed to demonstrate the importance of matching technological development to the working PHC processes in interventions regarding the use of sensors and wearables for remote monitoring as a source of information for chronic disease management, so that information with clinical value is not lost along the way.publishersversionpublishe

Nutracêuticos e potencial antioxidante de erva-cidreira: amostras cultivadas, obtidas por cultura in vitro e comerciais

As infusões de Melissa officinalis L. (erva-cidreira) são usadas em todo o mundo pela sua ação digestiva, analgésica e outras aplicações farmacêuticas. Neste trabalho, avaliou-se a produção de nutracêuticos e o potencial antioxidante de cinco amostras diferentes de erva-cidreira: uma amostra cultivada em quintal, uma obtida por cultura in vitro e duas amostras comerciais disponíveis em diferentes formulações (em saquetas e granulada). Este é um estudo inovador de comparação de nutracêuticos e atividade antioxidante em erva-cidreira cultivada em quintal, obtida por cultura in vitro e comercialmente. Para além disso, demonstrou que a técnica de cultura in vitro pode ser utilizada para estimular a produção de vitaminas nomeadamente tocoferóis e ácido ascórbico

Exploring plant tissue culture to improve the production of phenolic compounds: a review

Plant tissue and organ culture has been extensively used from the beginning of the XX century for the study and comprehension of some primary biological mechanisms such as morphogenesis. However, with the increasing demand of the market for novel products derived from plants, in vitro culture became a reliable technique for the mass production of plant material. Moreover, the potential to use this technique for the production of some bioactive compounds, such as phenolic compounds, is immense since it allows the manipulation of the biosynthetic routes to increase the production and accumulation of specific compounds. This work intends to make a brief historical review of in vitro culture, highlighting its use for the production of bioactive compounds. Also, emphasizes the importance of phenolic compounds for the consumer as well reviews the metabolic pathways involved in its production in plant cells. Furthermore, it was carried out a comprehensive study on the work developed for the production of plant phenolic compounds in in vitro cultures, as well as on the type of elicitors used to increase of the same production; also a brief highlighting of the phenolic compounds which serve as elicitors. There are numerous reports directed to the production of phenolic extracts in in vitro plant cultures, however there is a lack in the production of individual phenolic compounds mainly due to the complexity of the biosynthetic routes and extraction procedures. Elicitation procedures are often used to increase the production of phenolics, archieving in most cases higher yields than in non-elicitated cultures. The increasing production of bioactive phenolic extracts/compounds allows for their further applicability, namely in the industry of functional foods or in pharmaceutical/medical fields.The authors are grateful to Fundação para a Ciência e a Tecnologia (FCT, Portugal) for financial support to CIMO (strategic project PEst-OE/AGR/UI0690/2014) and M.I. Dias grant (SFRH/BD/84485/2012). This work received financial support from the European Union (FEDER funds through COMPETE) and National Funds (FCT) through project UID/QUI/50006/2013, and FEDER funds under the framework of QREN through Project NORTE-07-0124-FEDER-000069