1,324 research outputs found
Maternal smoking: a life course blood pressure determinant?
Introduction: Exposure to maternal smoking early in life may affect blood pressure (BP) control mechanisms. We examined the association between maternal smoking (before conception, during pregnancy, and 4 years after delivery) and BP in preschool children.
Methods: We evaluated 4295 of Generation XXI children, recruited at birth in 2005–2006 and reevaluated at the age of 4. At birth, information was collected by face-to-face interview and additionally abstracted from clinical records. At 4-year follow-up, interviews were performed and children’s BP measured. Linear regression models were fitted to estimate the association between maternal smoking and children’s BP.
Results: Children of smoking mothers presented significantly higher BP levels. After adjustment for maternal education, gestational hypertensive disorders, and child’s body mass index, children exposed during pregnancy to maternal smoking presented a higher systolic BP (SBP) z-score (β = 0.08, 95% confidence interval [CI] 0.04 to 0.14). In crude models, maternal smoking was associated with higher SBP z-score at every assessed period. However, after adjustment, an attenuation of the association estimates occurred (β = 0.08, 95% CI 0.03 to 0.13 before conception; β = 0.07, 95%CI 0.02 to 0.12; β = 0.04, 95%CI −0.02 to 0.10; and β = 0.06, 95%CI 0.00 to 0.13 for the first, second, and third pregnancy trimesters, respectively; and β = 0.07, 95%CI 0.02 to 0.12 for current maternal smoking). No significant association was observed for diastolic BP z-score levels.
Conclusion: Maternal smoking before, during, and after pregnancy was independently associated with systolic BP z-score in preschool children. This study provides additional evidence to the public health relevance of maternal smoking cessation programs if early cardiovascular health of children is envisaged.
Implications: Using observational longitudinal data from the birth cohort Generation XXI, this study showed that exposure to maternal smoking—before pregnancy, during pregnancy, and 4 years after delivery—was associated with a systolic BP-raising effect in children at the age of 4. The findings of this study add an important insight into the need to support maternal smoke-free environments in order to provide long-term cardiovascular benefit, starting as early as possible in life.Generation XXI has been funded by the Operational Health Programme XXI Health, Community support framework III (co-funded by Feder), Administração Regional de Saúde do Norte, Fundação Calouste Gulbenkian and Fundação para a Ciência e Tecnologia (SFRH/BSAB/113778/2015; PD/BD/105824/2014; PD/BD/105827/2014; F-COMP-01-0124-FEDER-011008; FCT—PTDC/SAU-ESA/105033/2008). Also, the Portuguese Foundation for Science and Technology funds the Epidemiology Research Unit of the Institute of Public Health of the University of Porto (UID/DTP/04750/2013). This article is a result of the project DOCnet (NORTE-01-0145-FEDER-000003), supported by Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF)
¿Qué evalúan los profesores de Educación Secundaria Obligatoria, sobre nutrición vegetal?
En este trabajo se analizan los contenidos que el profesorado considera importantes sobre nutrición vegetal en enseñanza secundaria obligatoria. Para ello se utilizaron las cuestiones de evaluación de una muestra de profesores que en la actualidad imparten el área de ciencias de la naturaleza en ese nivel educativo. El análisis de los resultados nos indica, que el profesorado realiza una selección de contenidos centrada básicamente en aspectos concretos y descriptivos, agrupados sobre todo en el nivel celular y en el proceso de la fotosíntesis, lo que constituye una llamada de atención para la enseñanza de este tema
A Pathway From Porous Particle Technology Toward Tailoring Aerogels for Pulmonary Drug Administration
Pulmonary drug delivery has recognized benefits for both local and systemic treatments. Dry powder inhalers (DPIs) are convenient, portable and environmentally friendly devices, becoming an optimal choice for patients. The tailoring of novel formulations for DPIs, namely in the form of porous particles, is stimulating in the pharmaceutical research area to improve delivery efficiency. Suitable powder technological approaches are being sought to design such formulations. Namely, aerogel powders are nanostructured porous particles with particularly attractive properties (large surface area, excellent aerodynamic properties and high fluid uptake capacity) for these purposes. In this review, the most recent development on powder technologies used for the processing of particulate porous carriers are described via updated examples and critically discussed. A special focus will be devoted to the most recent advances and uses of aerogel technology to obtain porous particles with advanced performance in pulmonary delivery.Work carried out in the framework of COST Action CA18125 “Advanced Engineering and Research of aeroGels for Environment and Life Sciences” (AERoGELS), funded by the European Commission. This work was also supported by Xunta de Galicia [ED431C 2020/17], MCIUN [RTI2018-094131-AI00], Agencia Estatal de Investigación [AEI], and FEDER funds. CG-G acknowledges to MINECO for a Ramón y Cajal Fellowship [RYC2014-15239]
Evaluando el progreso de la eficiencia con tecnología en una cadena de hoteles española
This paper analyzes the changes in the total factor productivity index of a Spanish hotel chain in the
period from 2007 to 2010 with the purpose of identifying efficiency patterns for the chain in a period of
financial crisis. The data envelopment analysis (DEA) Malmquist productivity index was used to estimate
productivity change in 38 hotels of the AC chain. Results reveal AC hotels’ efficiency trends and,
therefore, their competitiveness in the recession period; they also show the changes experienced in
these hotels’ total productivity and its components: technological and efficiency changes. Positive
efficiency changes were due to positive technical efficiency rather than technological efficiency. The
recession period certainly influenced the performance of AC Hotels, which focused on organizational
changes rather than investing in technology.Este artigo analisa as mudanças no fator total de produtividade de uma cadeia de hotéis na Espanha,
no período de 2007-2010, com o propósito de identificar os padrões da cadeia em um período
de crise financeira. O índice data envelopment analysis (DEA) Malmquist de produtividade foi usado
para estimar a mudança da produtividade nos 38 hotéis da AC Cadeia de Hotéis. Os resultados revelaram
as tendências de eficiência e competitividade da AC Hotéis em um período de recessão, bem
como as mudanças vivenciadas na produtividade total e, consequentemente, em seus componentes
de eficiência e tecnológicos. O período de recessão influenciou, sem dúvida, o comportamento da AC
Hotéis, que buscou mais mudanças organizacionais do que tecnológicas.Este artículo analiza los cambios del índice de productividad del factor total de una cadena de hoteles
españoles en el periodo de 2007 hasta 2010, con el propósito de identificar patrones de eficiencia
para la cadena en un periodo de crisis financiera. El índice de productividad data envelopment analysis
(DEA) Malmquist fue utilizado para estimar el cambio de productividad en 38 hoteles de la cadena
AC. Los resultados revelan las tendencias de la eficiencia de los hoteles AC y, por lo tanto, su competitividad
en el periodo de recisión; ellos también demuestran los cambios experimentados en la
productividad total de eses hoteles y sus componentes: cambios de eficiencia y tecnológicos. Cambios
de eficiencia positivos se debieron más bien a eficiencias técnicas positivas que a eficiencias tecnológicas.
El periodo de recesión ciertamente ha influenciado los Hoteles AC, que enfocaron más en los
cambios organizacionales que en invirtiendo en tecnología
The potential of Ganoderma lucidum extracts as bioactive ingredients in topical formulations, beyond its nutritional benefits
Ganoderma lucidum was characterized in terms of nutritional value and chemical composition. Thereafter, ethanolic Soxhlet extracts were evaluated for antioxidant, anti-inflammatory, antityrosinase, antimicrobial and cytotoxic effects, and further characterized in terms of phenolic acids, polysaccharides and triterpenoids. Finally, the obtained extracts were tested as cosmeceutical ingredients. G. lucidum proved to be a source of macronutrients and important bioactive compounds such as terpenoids, specially triterpenoids, and polysaccharides. In the extracts, ganoderic acids C2, A and H were the most abundant triterpenic acids and protocatechuic, p-hydroxibenzoic and syringic acids the identified phenolics. The developed cosmeceutical formulation preserved the extract bioactivities, presented a light-yellow colour and a pH of 4.6, which is considered appropriate for cosmeceutical's design. Behind the important nutritional/bioactive composition of G. lucidum, a potential towards its valorisation in the field of cosmeceuticals is foreseeable, as deduced from the bioactivities of its ethanolic extract and preservation in the tested formulation.The authors are grateful to the Foundation for Science and Technology and FEDER for CIMO (UID/AGR/00690/2013) and to POCI-01-0145-FEDER-006984 (LA LSRE-LCM) funded by ERDF through POCI-COMPETE2020 and FCT. To NORTE-01-0145-FEDER-000006, funded by NORTE 2020, under PT2020 through FERDF. Also for financial support to S.A.H. (SFRH/BPD/101413/2014) grant and L.B and R.M.C. contracts. A.M.G.-P. is also thankful to the Spanish MINECO/FEDER for financial support through the project AGL2015-64522-C2-2-R.info:eu-repo/semantics/publishedVersio
Development of mushroom-based cosmeceutical formulations with anti-inflammatory, anti-tyrosinase, antioxidant, and antibacterial properties
The cosmetic industry is in a constant search for natural compounds or extracts with relevant bioactive properties, which became valuable ingredients to design cosmeceutical formulations. Mushrooms have been markedly studied in terms of nutritional value and medicinal properties. However, there is still slow progress in the biotechnological application of mushroom extracts in cosmetic formulations, either as antioxidants, anti-aging, antimicrobial, and anti-inflammatory agents or as hyperpigmentation correctors. In the present work, the cosmeceutical potential of ethanolic extracts prepared from Agaricus bisporus, Pleurotus ostreatus, and Lentinula edodes was analyzed in terms of anti-inflammatory, anti-tyrosinase, antioxidant, and antibacterial activities. The extracts were characterized in terms of phenolic acids and ergosterol composition, and further incorporated in a base cosmetic cream to achieve the same bioactive purposes. From the results obtained, the final cosmeceutical formulations presented 85%-100% of the phenolic acids and ergosterol levels found in the mushroom extracts, suggesting that there was no significant loss of bioactive compounds. The final cosmeceutical formulation also displayed all the ascribed bioactivities and as such, mushrooms can further be exploited as natural cosmeceutical ingredients.info:eu-repo/semantics/publishedVersio
Maternal depression and anxiety predicts the pattern of offspring symptoms during their transition to adulthood
Background. Episodes of depression and anxiety (D&A) during the transition from late adolescence to adulthood, particularly when persistent, are predictive of long-term disorders and associated public health burden. Understanding risk factors at this time is important to guide intervention. The current objective was to investigate the associations between maternal symptoms of D&A with offspring symptoms during their transition to adulthood. Method. Data from a large population-based birth cohort study, in South Brazil, were used. Prospective associations between maternal D&A and offspring risk of these symptoms during the transition to adulthood (18/19, 24 and 30 years) were estimated. Results. Maternal D&A in adolescence was associated with offspring symptoms across the transition to adulthood, associations were consistently stronger for females than for males. Daughters whose mothers reported D&A were 4.6 times (95% confidence interval 2.71–7.84) as likely to report D&A at all three time-points, than daughters of symptom-free mothers. Conclusions. Maternal D&A is associated with persistent D&A during the daughter’s transition to adulthood. Intervention strategies should consider the mother’s mental health
Mushroom-based cosmeceutical ingredients: Microencapsulation and in vitro release profile
Mushrooms can be used as a source of cosmeceutical ingredients. Agaricus bisporus and Pleurotus ostreatus ethanolic extracts present important bioactive properties, but withsome compounds showingeasy oxidation and degradation. In the present work, microencapsulation by atomization/coagulation technique was used toprotect the extracts. The obtained microspheres were characterised in terms of morphology, particle size distribution and encapsulation efficiency. Microencapsulated extracts were incorporated into a semi-solid base cream and their performance compared with the use of the free forms in terms of bioactivity, and in vitro release using the cosmetic matrix and real time conditions (up to 6 months). The physico-chemical properties (colour and pH) of the developed formulations were also monitored over the same time period. The cosmeceutical formulations containing free extracts displayed bioactivity. For the formulations prepared with the encapsulated forms, the release of the extracts was achieved and anti-tyrosinase and antimicrobial activities were observed, while for the antioxidant activity, the extract release over the time was not sufficient to exert an effect. Overall, the use of mushroom extracts in free or encapsulated forms can be an option in cosmeceutical formulations, and the encapsulated forms can allow a controlled release leading to bioactivity control.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) and S.A. Heleno
(SFRH/BPD/101413/2014). This work was also financially supported
by Project POCI-01-0145-FEDER-006984 – Associate Laboratory LSRE-LCM funded by FEDER through COMPETE2020 - Programa Operacional
Competitividade e Internacionalização (POCI) – and by national funds
through FCT and project NORTE-01-0145-FEDER-000006, supported
by Norte Portugal Regional Operational Programme (NORTE 2020),
under the Portugal 2020 Partnership Agreement, through the European
Regional Development Fund (ERDF). The authors are grateful to
FEDER-Interreg España-Portugal programme for financial support
through the project 0377_Iberphenol_6_E. This work was also funded by
the European Structural and Investment Funds (FEEI) through the
Regional Operational Program North 2020, within the scope of
Mobilizing Project ValorNatural®. This work is funded by the European
Agricultural Fund for Rural Development (EAFRD), through the Rural
Development Program (PDR2020), within the scope of Project
MicoCoating (PDR2020-101-031472).info:eu-repo/semantics/publishedVersio
Phenolic acids, cinnamic acid, and ergosterol as cosmeceutical ingredients: Stabilization by microencapsulation to ensure sustained bioactivity
The global cosmetic industry is constantly searching for new ingredients with multifunctional properties. In this context, phenolic compounds (p-hydroxybenzoic, p-coumaric, and protocatechuic acids), cinnamic acid and ergosterol were evaluated for their anti-inflammatory, anti-tyrosinase and antimicrobial activities, and thereafter microencapsulated by the atomization/coagulation technique. After characterization (morphology, particle size distribution and encapsulation efficiency), the microencapsulated compounds were incorporated into a semi-solid base cream and their performance evaluated comparatively with the use of the free forms. The cosmeceutical formulations were checked regarding the presence of the bioactive compounds by HPLC-DAD, and for their physicochemical properties (colour and pH). The obtained results demonstrated the anti-tyrosinase, anti-inflammatory and antimicrobial activities of the individual compounds that, after incorporation, have shown a decreasing pattern along time. On the contrary, the formulations incorporating the microencapsulated bioactive compounds gave rise to a gradual release, ensuring bioactivity maintenance. These results underline the advantage of using microencapsulation to preserve and ensure the controlled release of bioactive species in cosmeceutical formulations.info:eu-repo/semantics/publishedVersio
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