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1.
J Sci Food Agric ; 104(12): 7550-7556, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38747313

RESUMEN

BACKGROUND: Currently, olive leaves are considered waste, although their high phenolic content makes them a source of antioxidants that could be used directly. The aim of this work was to study the behavior of phenolic compounds contained in olive leaf from the olive mill production chain during their gastrointestinal digestion. RESULTS: Phenolic compounds in the gastric digestion analyzed by high-performance liquid chromatography-diode array detection-mass spectrometry increased by 58% to 314.5% compared to the meal, while in the intestinal stage they ranged from 1.87 to 9.04 times higher. An increase of between 187% and 903% in bioaccessibility of phenolic compounds in the intestinal phase was observed, except for verbascoside. Furthermore, such compounds were fully bioavailable, except for apigenin-7-O-glucoside, which showed a bioavailability of 56%. CONCLUSION: The current study showed that the concentration of oleuropein, apigegin-7-O-glucoside, hydroxytyrosol hexoside and hydroxytyrosol contained in olive leaf continued to be extracted during the gastrointestinal digestion process. Furthermore, the results obtained with respect to their bioaccessibility and bioavailability suggest a good disposition to pass into the bloodstream where they could exert beneficial effects. Therefore, these results are promising for olive leaf becoming a consumable by-product that could be directly ingested through a simple infusion. © 2024 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.


Asunto(s)
Digestión , Tracto Gastrointestinal , Olea , Fenoles , Extractos Vegetales , Hojas de la Planta , Olea/química , Olea/metabolismo , Hojas de la Planta/química , Tracto Gastrointestinal/metabolismo , Fenoles/análisis , Fenoles/metabolismo , Fenoles/química , Extractos Vegetales/química , Extractos Vegetales/metabolismo , Humanos , Modelos Biológicos , Cromatografía Líquida de Alta Presión , Residuos/análisis , Glucósidos Iridoides
2.
Eur J Haematol ; 113(2): 227-234, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38665060

RESUMEN

OBJECTIVES: Our aim was to describe the frequency and severity of infectious complications after chimeric antigen receptor (CAR) T-cell therapy in patients with large B-cell lymphoma (LBCL). METHODS: We retrospectively reviewed clinical records of LBCL patients treated with CD19-targeted CAR T-cell therapy from July/2018 to December/2021 at our institution, and identified all infectious episodes from CAR T-cell infusion until disease progression, death or last follow-up. RESULTS: Overall, 137 patients were included. Thirty six percent had received ≥3 previous lines of therapy and 26% an autologous hematopoietic cell transplantation (auto-HCT). Cytokine release syndrome occurred in 87 (64%) patients. Antibacterial prophylaxis was not used in any patient; only 38% received antifungal prophylaxis. Sixty three infectious events were observed in 41 (30%) patients. Fifty two (83%) of the infectious events had at least one pathogen identified (bacteria [n = 38], virus [n = 11], and fungi [n = 3]). Most of the infectious events occurred during hospitalization for CAR-T treatment. Infection-related mortality was observed in two patients. Independent risk factors for infection included male gender, previous auto-HCT, ≥3 lines of treatment and pre-lymphodepletion neutropenia. CONCLUSIONS: Infections after CAR T-cell therapy in patients with lymphoma are frequent but generally not severe. A conservative and tailored antimicrobial prophylaxis seems to be a safe approach.


Asunto(s)
Antifúngicos , Inmunoterapia Adoptiva , Humanos , Masculino , Femenino , Inmunoterapia Adoptiva/métodos , Inmunoterapia Adoptiva/efectos adversos , Persona de Mediana Edad , Anciano , Antifúngicos/uso terapéutico , Adulto , Estudios Retrospectivos , Profilaxis Antibiótica/métodos , Linfoma de Células B/terapia , Linfoma de Células B/inmunología , Estadificación de Neoplasias , Receptores Quiméricos de Antígenos , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Linfoma de Células B Grandes Difuso/terapia , Antibacterianos/uso terapéutico , Micosis/prevención & control , Micosis/etiología , Factores de Riesgo
3.
J Dent Res ; 103(1): 91-100, 2024 01.
Artículo en Inglés | MEDLINE | ID: mdl-38058151

RESUMEN

The mandibular condylar cartilage (MCC) is an essential component of the temporomandibular joint, which orchestrates the vertical growth of the mandibular ramus through endochondral ossification with distinctive modes of cell differentiation. Parathyroid hormone-related protein (PTHrP) is a master regulator of chondrogenesis; in the long bone epiphyseal growth plate, PTHrP expressed by resting zone chondrocytes promotes chondrocyte proliferation in the adjacent layer. However, how PTHrP regulates chondrogenesis in the MCC remains largely unclear. In this study, we used a Pthrp-mCherry knock-in reporter strain to map the localization of PTHrP+ cells in the MCC and define the function of PTHrP in the growing mandibular condyle. In the postnatal MCC of PthrpmCherry/+ mice, PTHrP-mCherry was specifically expressed by cells in the superficial layer immediately adjacent to RUNX2-expressing cells in the polymorphic layer. PTHrP ligands diffused across the polymorphic and chondrocyte layers where its cognate receptor PTH1R was abundantly expressed. We further analyzed the mandibular condyle of PthrpmCherry/mCherry mice lacking functional PTHrP protein (PTHrP-KO). At embryonic day (E) 18.5, the condylar process and MCC were significantly truncated in the PTHrP-KO mandible, which was associated with a significant reduction in cell proliferation across the polymorphic layer and a loss of SOX9+ cells in the chondrocyte layers. The PTHrP-KO MCC showed a transient increase in the number of Col10a1+ hypertrophic chondrocytes at E15.5, followed by a significant loss of these cells at E18.5, indicating that superficial layer-derived PTHrP prevents premature chondrocyte exhaustion in the MCC. The expression of Runx2, but not Sp7, was significantly reduced in the polymorphic layer of the PTHrP-KO MCC. Therefore, PTHrP released from cells in the superficial layer directly acts on cells in the polymorphic layer to promote proliferation of chondrocyte precursor cells and prevent their premature differentiation by maintaining Runx2 expression, revealing a unique PTHrP gradient-directed mechanism that regulates MCC chondrogenesis.


Asunto(s)
Cóndilo Mandibular , Proteína Relacionada con la Hormona Paratiroidea , Animales , Ratones , Cartílago/metabolismo , Diferenciación Celular/fisiología , Condrocitos/metabolismo , Condrogénesis/fisiología , Subunidad alfa 1 del Factor de Unión al Sitio Principal/metabolismo
4.
J Agric Food Chem ; 72(4): 1864-1877, 2024 Jan 31.
Artículo en Inglés | MEDLINE | ID: mdl-36988934

RESUMEN

This work studies, for the first time, the effect of the use of Cabernet Sauvignon vine-shoots as an enological additive (called "Shoot Enological Granule", SEG) in wines of the same variety. SEGs were added in two doses (12 and 24 g/L) at the end of malolactic fermentation, and after that, wines were bottled for six months. The phenolic and volatile composition and sensory profiles of wines were analyzed at bottling and after six months. The results showed a decrease in the total content of phenolic compounds with bottle time; however, stilbenes─specifically trans-resveratrol─were maintained at significant levels in SEG wines. In contrast, the total content of volatile compounds, mainly esters, increased with bottle aging. Finally, in terms of sensory profile, SEG wines showed a clear differentiation between the descriptors and the control, with more-integrated aromas after bottle time with more toasted, nutty vanilla notes, as well as silkier and less bitter tannins, compared to the control.


Asunto(s)
Vitis , Compuestos Orgánicos Volátiles , Vino , Vino/análisis , Compuestos Orgánicos Volátiles/análisis , Fenoles/análisis , Gusto , Fermentación
5.
J Agric Food Chem ; 72(4): 1914-1927, 2024 Jan 31.
Artículo en Inglés | MEDLINE | ID: mdl-36960639

RESUMEN

The use of toasted vine shoots (SEGs) as an enological tool is a new practice that seeks to improve wines by differentiating between them and encouraging sustainable wine production. The sensorial impact during bottle aging of wines treated with SEGs is a key factor to consider. This paper studies the influence of SEGs on Tempranillo wines treated with their own SEGs in two different doses (12 and 24 g/L) at two differences moments (during alcoholic fermentation and after malolactic fermentation) throughout 1 year of bottle aging. The results indicate that addition moment is the factor that most affects the evolution of sensorial descriptors. The greatest evolution in the wines was observed during the first 4 months, wherein improved integration of the notes related to addition of SEGs occurred. A reduction in the perception of dryness and bitterness was observed in the treated wines, therefore, SEGs could be considered accelerators to eliminate these initial sensations from wines.


Asunto(s)
Vitis , Compuestos Orgánicos Volátiles , Vino , Vino/análisis , Compuestos Orgánicos Volátiles/análisis , Gusto , Fermentación
6.
Phys Chem Chem Phys ; 25(39): 26417-26428, 2023 Oct 11.
Artículo en Inglés | MEDLINE | ID: mdl-37522306

RESUMEN

In this work, we focus on the understanding of the driving force behind the S1-T1 excited-state energy inversion (which would thus violate Hund's rule, making the S1 state lower in energy than the T1 state) of two non-benzenoid non-alternant hydrocarbons, composed of odd-membered rings. The molecules considered here have identical chemical composition but different atomic configuration in space. The delicate interplay between structural and electronic factors that might induce inversion and its energy extension, only by a few meV, is systematically investigated here by state-of-the-art calculations. Qualitative and quantitative accurate predictions are obtained employing post-HF methods, thanks to the balanced and careful inclusion of electron correlation effects. The obtained results might guide and rationalize new searches for molecules violating Hund's rule, concomitantly demonstrating the importance of key contributions from the theoretical method of choice.

7.
Phys Chem Chem Phys ; 25(16): 11697-11706, 2023 Apr 26.
Artículo en Inglés | MEDLINE | ID: mdl-37057462

RESUMEN

We theoretically study and characterize a set of rhombus-shaped nanographenes of increasing size, or n-rhombenes, where n = 2-6, displaying zigzag edges leading to an enhancement of the (poly)radicaloid nature and the appearance of intrinsic magnetism as a function of n. Due to that system-dependent radicaloid nature, we employ spin-flip methods able to capture the challenging physics of the problem, thus providing accurate energy differences between high- and low-spin solutions. The theoretical predictions agree with the experimentally available magnetic exchange coupling for the recently synthesized 5-rhombene, as well as with the size at which the transition from a closed-shell to an open-shell ground-state solution occurs. We also investigate if standard DFT methods are able to reproduce the trend disclosed by spin-flip methods and if the results are highly dependent on the functional choice and/or the intrinsic spin contamination.

8.
J Chem Phys ; 158(4): 044105, 2023 Jan 28.
Artículo en Inglés | MEDLINE | ID: mdl-36725511

RESUMEN

A family of non-empirical double-hybrid (DH) density functionals, such as Perdew-Burke-Ernzerhof (PBE)0-DH, PBE-QIDH, and their range-separated exchange (RSX) versions RSX-0DH and RSX-QIDH, all using Perdew-Burke-Ernzerhof(PBE) exchange and correlationfunctionals, is applied here to calculate the excitation energies for increasingly longer linear and cyclic acenes as part of their intense benchmarking for excited states of all types. The energies for the two lowest-lying singlet 1La and 1Lb states of linear oligoacenes as well as the triplet 3La and 3Lb states, are calculated and compared with experimental results. These functionals clearly outperform the results obtained from hybrid functionals and favorably compare with other double-hybrid expressions also tested here, such as B2-PLYP, B2GP-PLYP, ωB2-PLYP, and ωB2GP-PLYP. The study is complemented by the computation of adiabatic S0-T1 singlet-triplet energy difference for linear acenes as well as the extension of the study to strained cyclic oligomers, showing how the family of non-empirical expressions robustly leads to competitive results.

9.
J Intellect Disabil Res ; 67(1): 35-48, 2023 01.
Artículo en Inglés | MEDLINE | ID: mdl-36253339

RESUMEN

BACKGROUND: The emotional state of parents of babies with Down syndrome affects their babies' development and their parent-child bonding. The aim for this study was to conduct a pilot randomised controlled evaluation of the effect of infant massage on parents of babies with Down syndrome. METHODS: This pilot study compared two groups (intervention and control), each with 16 parents of babies with Down syndrome. Indices of acceptance, engagement and awareness of influence were measured at two different time points (pre-test and after 5 weeks) using the 'This Is My Baby' Interview. The allocation of families to each group was randomised. The experimental group performed infant massage, applied by the parents, for 5 weeks, every day for at least 10 min. The massage protocol was based on the methodology created by Vimala McClure. Parents in the control group received the intervention after completion of the study. RESULTS: The indices of acceptance, commitment and awareness of influence improved in the experimental group and in the control group. The 2 × 2 mixed-model analysis of variance indicates a statistically significant group-by-time interaction for all indices (P < 0.001), which was significantly higher in the experimental group than in the control group. CONCLUSIONS: The application of infant massage, by parents to their babies, improves the rates of acceptance, commitment and awareness of influence of parents of babies with Down syndrome in the short term.


Asunto(s)
Síndrome de Down , Lactante , Humanos , Proyectos Piloto , Síndrome de Down/terapia , Padres/psicología , Masaje , Desarrollo Infantil
10.
Climacteric ; 25(5): 510-515, 2022 10.
Artículo en Inglés | MEDLINE | ID: mdl-35652469

RESUMEN

OBJECTIVE: We gained insights into women's experiences and knowledge about the occurrence of vaginal bleeding during perimenopause requiring evaluation. METHODS: Qualitative inquiry was chosen to explore topics in greater depth to understand individuals' experiences. Interviews with individuals were chosen due to the sensitive nature of gynecologic symptoms and management. Interviews were completed following gynecologic care to explore individuals' experiences with the evaluation and management of vaginal bleeding during perimenopause. RESULTS: Twelve individuals were interviewed between December 2019 and March 2020. Patient uncertainty about the medical significance of developing vaginal bleeding during perimenopause was associated with self-appraisal and gathering information from multiple sources. This experience of seeking evaluation and treatment resulted in varying degrees of trust concerning information received within or outside the clinic. Regarding new technologies that could replace the current invasive tests performed for diagnosis (i.e. ultrasound, hysteroscopy and biopsy), most women preferred the smartphone app and tampon home collection option. CONCLUSIONS: The experience of irregular or heavy vaginal bleeding during perimenopause is fraught with ambiguity, feelings of uncertainty about how to make sense of symptoms and inevitably begins with a period of self-appraisal.


Asunto(s)
Perimenopausia , Hemorragia Uterina , Biopsia , Femenino , Humanos , Histeroscopía , Proyectos Piloto , Embarazo , Hemorragia Uterina/diagnóstico , Hemorragia Uterina/etiología , Hemorragia Uterina/patología
11.
Food Res Int ; 156: 111195, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-35651049

RESUMEN

For this study, Tempranillo wines were made by adding their own toasted vine-shoots (SEGs, "Shoot- Enological - Granule"). The SEGs were added in two doses (12 and 24 g/L) at three different times (before alcoholic fermentation, in the middle of alcoholic fermentation, and after fermentations) and phenolic, volatile, and mineral composition were analysed. Results showed a decrease in the total content of phenolic compounds but stilbenes, specifically trans-resveratrol, increased in all wines macerated with SEGs, as did total anthocyanins when these additives were added in the middle of fermentation. Furthermore, the ratios related to glycosylated monomeric anthocyanins were significantly higher in wines treated with SEGs. The use of SEGs did not affect the total content of volatile compounds. However, changes in terms of individual compounds resulted in an odorant series associated with SEGs, named "sweet woody", formed by compounds such as ethyl vanillate, ethyl cinnamate, and vanillin. Finally, the mineral composition of the wines was not affected using SEGs, whereby potassium was the most abundant in all the wines.


Asunto(s)
Vitis , Compuestos Orgánicos Volátiles , Vino , Antocianinas/análisis , Frutas/química , Fenoles/análisis , Vitis/química , Compuestos Orgánicos Volátiles/análisis , Vino/análisis
12.
Rev Clin Esp (Barc) ; 222(2): 73-81, 2022 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34548255

RESUMEN

BACKGROUND AND OBJECTIVES: This study aims to evaluate the impact of implementing multidisciplinary clinical guidelines in the process of caring for patients with hip fractures. MATERIALS AND METHODS: This work is a pre- and post-intervention prospective study in the Orthogeriatrics Unit of a second-level hospital after implementing multidisciplinary clinical guidelines for hip fracture care. We analyzed patients' baseline characteristics and the variations observed in care provided and in outcome variables in the two periods studied (June 2015-May 2016 and June 2016-May 2017). RESULTS: The baseline characteristics of the population were similar in the pre-intervention period (n = 455) compared to the post-intervention period (n = 456). Patients' mean age was 84.8 ± 6.8 years and 70.8% were women. The implementation of the multidisciplinary clinical guidelines led to a reduction in the mean length of hospital stay (16.9 days vs. 15.6 days, p= .014); improved osteoporosis treatment prescribing (51.6% vs. 88%, p< .001); and reduced episodes of delirium (44% vs. 31.2%, p < .001), bronchospasm (18.3% vs. 12%, p = .019), heart failure (20% vs. 11.5%, p < .001), and COPD exacerbation (7.9% vs. 3.8%, P = .017). We observed an increase in pressure ulcers at discharge (2.9 vs. 9%, P < .001). There were no differences in the percentage of operations in less than 48 h (56% vs. 61.2% p = .64), hospital readmissions (6.9% vs. 5.9%, p = .51), or mortality (5.0% vs. 7.2%, p = .17). CONCLUSIONS: The implementation of multidisciplinary clinical guidelines improved aspects of the care process for patients with hip fracture.


Asunto(s)
Fracturas de Cadera , Anciano , Anciano de 80 o más Años , Femenino , Fracturas de Cadera/terapia , Humanos , Tiempo de Internación , Evaluación de Resultado en la Atención de Salud , Alta del Paciente , Estudios Prospectivos
13.
Sci Total Environ ; 798: 149266, 2021 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-34340079

RESUMEN

Anthropogenic impacts on freshwater ecosystems cause critical losses of biodiversity that can in turn impair key processes such as decomposition and nutrient cycling. Forest streams are mainly subsidized by terrestrial organic detritus, so their functioning and conservation status can be altered by changes in forest biodiversity and composition, particularly if these changes involve the replacement of functional groups or the loss of key species. We examined this issue using a microcosm experiment where we manipulated plant functional diversity (FD) (monocultures and low-FD and high-FD mixtures, resulting from different combinations of deciduous and evergreen Quercus species) and the presence of a key species (Alnus glutinosa), all in presence and absence of detritivores, and assessed effects on litter decomposition, nutrient cycling, and fungal and detritivore biomass. We found (i) positive diversity effects on detritivore-mediated decomposition, litter nutrient losses and detritivore biomass exclusively when A. glutinosa was present; and (ii) negative effects on the same processes when microbially mediated and on fungal biomass. Most positive trends could be explained by the higher litter palatability and litter trait variability obtained with the inclusion of alder leaves in the mixture. Our results support the hypothesis of a consistent slowing down of the decomposition process as a result of plant biodiversity loss, and hence effects on stream ecosystem functioning, especially when a key (N-fixing) species is lost; and underscore the importance of detritivores as drivers of plant diversity effects in the studied ecosystem processes.


Asunto(s)
Biodiversidad , Ecosistema , Hojas de la Planta , Plantas , Ríos
14.
J Healthc Qual Res ; 36(5): 253-262, 2021.
Artículo en Español | MEDLINE | ID: mdl-34305039

RESUMEN

INTRODUCTION: We designed and conducted a survey to analyze the impact of the COVID-19 pandemic on the operation and performance of the orthopedic departments of the National Health System and private entities. MATERIAL AND METHODS: Descriptive study of a survey is distributed to Spanish Ortohopedic surgeons via Internet. RESULTS: 401 valid responses were obtained, out of these 85.7% had to reduce their surgical activity between 50% and 100%. 46% of the sample were asked to collaborate in other units or services and another 43% felt that their work had been underused. 52% modified the treatment indications in various bone fractures, with variability between centers and communities. 30% reported being satisfied with the management from the state and 60% with that of their province and center. 70% showed little to no satisfaction with the training received on the use of masks and personal protective equipment. An additional of 80% were also unsatisfied with the training received with regard to sample-taking. 65% did not have protective equipment to carry out their work. 46% have been denied protective measures to treat patients with suspected or confirmed infection. CONCLUSION: The COVID-19 pandemic has placed the National Health System in an extremely serious situation. Through the analysis of the results, we can observe an inefficient use of available human resources, a widespread discontent, as well as an absence of means and measures, which has had a direct impact on the number of infected professionals.


Asunto(s)
COVID-19 , Departamentos de Hospitales/organización & administración , Ortopedia/organización & administración , Traumatología/organización & administración , COVID-19/epidemiología , Encuestas de Atención de la Salud , Humanos , España/epidemiología
15.
Sci Rep ; 11(1): 8114, 2021 04 14.
Artículo en Inglés | MEDLINE | ID: mdl-33854120

RESUMEN

Ozonated water has become an innovative, environmentally friendly tool for controlling the development of fungal diseases in the vineyard or during grape postharvest conservation. However, little information is currently available on the effects of ozonated water sprayings on the grapevine physiology and metabolism. Using the microvine model, we studied the transcriptomic response of leaf and fruit organs to this treatment. The response to ozone was observed to be organ and developmental stage-dependent, with a decrease of the number of DEGs (differentially expressed genes) in the fruit from the onset of ripening to later stages. The most highly up-regulated gene families were heat-shock proteins and chaperones. Other up-regulated genes were involved in oxidative stress homeostasis such as those of the ascorbate-glutathione cycle and glutathione S-transferases. In contrast, genes related to cell wall development and secondary metabolites (carotenoids, terpenoids, phenylpropanoids / flavonoids) were generally down-regulated after ozone treatment, mainly in the early stage of fruit ripening. This down-regulation may indicate a possible carbon competition favouring the re-establishment and maintenance of the redox homeostasis rather than the synthesis of secondary metabolites at the beginning of ripening, the most ozone responsive developmental stage.


Asunto(s)
Antioxidantes/metabolismo , Ozono/farmacología , Transcriptoma/efectos de los fármacos , Vitis/metabolismo , Carotenoides/metabolismo , Regulación hacia Abajo/efectos de los fármacos , Frutas/química , Frutas/genética , Frutas/metabolismo , Glutatión Transferasa/metabolismo , Proteínas de Choque Térmico/metabolismo , Hojas de la Planta/química , Hojas de la Planta/genética , Hojas de la Planta/metabolismo , Proteínas de Plantas/metabolismo , Análisis de Componente Principal , Regulación hacia Arriba/efectos de los fármacos , Vitis/química , Vitis/genética
16.
Foods ; 10(2)2021 Feb 12.
Artículo en Inglés | MEDLINE | ID: mdl-33673099

RESUMEN

The dehydration process is the basis to obtain high quality saffron and to preserve it for a long time. This process modifies saffron's main metabolites that define its quality, and are responsible for the characteristic color, taste, and aroma of the spice. In this work, the effect of microwave dehydration on saffron main metabolites (picrocrocin, safranal and crocetin esters) from Crocus sativus L. stigmas at three determinate powers and different time lapses was evaluated. The results showed that this dehydration process obtained similar or lower crocetin esters content, and after three months of storage, higher concentration was shown in treatments at 440 W for 36 s, 55 s, and 73 s; at 616 W for 90 s; and at 800 W for 20 s. Picrocrocin content was lower and safranal content was higher in all treatments compared to the control both before and after storage. Regarding to commercial quality, microwave dehydration obtained Category I of saffron according to International Standard Organization (ISO) 3632. After three months of storage, treatments at 616 W for 83 s and 800 W for 60 s obtained lower categories. The results obtained suggest that microwave dehydration is a suitable process for obtaining high quality saffron, 800 W with 6 lapses of 20 s being the best conditions studied.

17.
Foods ; 10(1)2021 Jan 19.
Artículo en Inglés | MEDLINE | ID: mdl-33477839

RESUMEN

Nowadays, the techniques for the analysis of glycosidic precursors in grapes involve changes in the glycoside structure or it is necessary the use of very expensive analytical techniques. In this study, we describe for the first time an approach to analyse intact glycosidic aroma precursors in grapes by high-performance liquid chromatography with a diode array detector (HPLC-DAD), a simple and cheap analytical technique that could be used in wineries. Briefly, the skin of Muscat of Alexandria grapes was extracted using a microwave and purified using solid-phase extraction combining Oasis MCX and LiChrolut EN cartridges. In total, 20 compounds were selected by HPLC-DAD at 195 nm and taking as a reference the spectrum of phenyl ß-D-glucopyranoside, whose DAD spectrum showed a first shoulder from 190 to 230 nm and a second around 200-360 nm. After that, these glycosidic compounds were identified by High-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (HPLC-qTOF-MS). Disaccharides hexose pentose were the most abundant group observed with respect to the sugars and monoterpendiols the main aglycones found.

18.
Int Nurs Rev ; 67(4): 453-465, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32779196

RESUMEN

AIM: To explore nursing and midwifery managers' views regarding obstacles to compassion-giving across country cultures. BACKGROUND: The benefit of compassionate leadership is being advocated, but despite the fact that health care is invariably conducted within culturally diverse workplaces, the interconnection of culture, compassion and leadership is rarely addressed. Furthermore, evidence on how cultural factors hinder the expression of compassion among nursing and midwifery managers is lacking. METHODS: Cross-sectional, exploratory, international online survey involving 1 217 participants from 17 countries. Managers' responses on open-ended questions related to barriers for providing compassion were entered and thematically analysed through NVivo. RESULTS: Three key themes related to compassion-giving obstacles emerged across countries: 1. related to the managers' personal characteristics and experiences; 2. system-related; and 3. staff-related. CONCLUSIONS: Obstacles to compassion-giving among managers vary across countries. An understanding of the variations across countries and cultures of what impedes compassion to flourish in health care is important. IMPLICATIONS FOR NURSING PRACTICE AND POLICY: Nursing mangers should wisely use their power by adopting leadership styles that promote culturally competent and compassionate workplaces with respect for human rights. Policymakers should identify training and mentoring needs to enable the development of managers' practical wisdom. Appropriate national and international policies should facilitate the establishment of standards and guidelines for compassionate leadership, in the face of distorted organizational cultures and system-related obstacles to compassion-giving.


Asunto(s)
Empatía , Partería , Estudios Transversales , Femenino , Humanos , Liderazgo , Embarazo , Encuestas y Cuestionarios
19.
Biomolecules ; 10(2)2020 02 01.
Artículo en Inglés | MEDLINE | ID: mdl-32024131

RESUMEN

Ozonated water is being introduced as an alternative phytosanitary treatment to control grapevine diseases in a context in which the reduction of chemical pesticides has become an urgent necessity. In this study, we evaluated the effect of spraying grapevines with ozonated water on the enological, phenolic, and aromatic qualities of Bobal wines during two consecutive growing seasons. In the first season, ozonated water was applied once during the ripening period on grapevines trained on the traditional gobelet system (S1). In the second season, three applications were performed between fruit set and harvest on grapevines grown on a vertical trellis system (S2). The S1 treatment led to a wine with an increased alcoholic degree and a remarkably higher phenolic content, which resulted in preferable chromatic characteristics. The S2 treatment maintained the total phenolic content but significantly enhanced stilbenes and flavanols and also reduced anthocyanins, which negatively affected the wine colour. Regarding aroma, both treatments reduced the content of glycosylated precursors and had different effects on free volatiles, both varietal and fermentative. Thus, the metabolic response of grapevines to the ozonated water stress, and therefore the quality of wines, depended on the ozone dose received by the plants.


Asunto(s)
Ozono/química , Vitis/crecimiento & desarrollo , Agua/química , Vino , Antocianinas/análisis , Catequina/análisis , Fermentación , Frutas/química , Glicosilación , Odorantes/análisis , Polifenoles/análisis , Vitis/química
20.
J Toxicol ; 2020: 5702024, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33488704

RESUMEN

Combustion-derived nanomaterials are noxious ultrafine (<100 nm) aerosol by-products of human activity. They pose threats to pulmonary health due to their small size, allowing them to penetrate alveoli causing detrimental responses downstream. Information regarding the cellular activity that connects nanocarbon particle exposure to poor pulmonary health remains lacking. We hypothesized that low-dose and long-term administrations of carbonaceous nanoparticles contribute to lung irritation by adversely affecting respiratory cells that function as the first line of defense. Responses to ultrafine black carbon (UBC), a key component of airborne pollutants, by human lung A549, murine lung LA4 epithelial cells, human peripheral-blood monocytes THP1, and murine macrophages RAW264.7 were investigated. The cells were first plated on day zero and were fed fresh UBC suspended in culture media on days one, four, and seven. The exposure regimen included three different concentrations of UBC. On day ten, all cells were harvested, washed, and assayed. The impact on cellular viability revealed that UBC was only moderately cytotoxic, while metabolic activity was significantly diminished in a dose-dependent manner. Additionally, beta-galactosidase proportionally increased with UBC concentration compared to untreated cells, indicating that cellular senescence was promoted across all cell types. The implemented regimen caused minimal toxicity yet demonstrated different cellular modifications across the cell lines of both species, inducing changes to enzyme vitality and cellular fitness. The data suggested that compounding nanosized black carbon exposure could negatively impair overall pulmonary health by distinctively modifying intracellular behavior.

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