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1.
Toxicol Appl Pharmacol ; 460: 116377, 2023 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-36642108

RESUMO

Utilizing the atto-zeptomole sensitivity of UPLC-accelerator mass spectrometry (UPLC-AMS), we previously demonstrated significant first-pass metabolism following escalating (25-250 ng) oral micro-dosing in humans of [14C]-benzo[a]pyrene ([14C]-BaP). The present study examines the potential for supplementation with Brussels sprouts (BS) or 3,3'-diindolylmethane (DIM) to alter plasma levels of [14C]-BaP and metabolites over a 48-h period following micro-dosing with 50 ng (5.4 nCi) [14C]-BaP. Volunteers were dosed with [14C]-BaP following fourteen days on a cruciferous vegetable restricted diet, or the same diet supplemented for seven days with 50 g of BS or 300 mg of BR-DIM® prior to dosing. BS or DIM reduced total [14C] recovered from plasma by 56-67% relative to non-intervention. Dietary supplementation with DIM markedly increased Tmax and reduced Cmax for [14C]-BaP indicative of slower absorption. Both dietary treatments significantly reduced Cmax values of four downstream BaP metabolites, consistent with delaying BaP absorption. Dietary treatments also appeared to reduce the T1/2 and the plasma AUC(0,∞) for Unknown Metabolite C, indicating some effect in accelerating clearance of this metabolite. Toxicokinetic constants for other metabolites followed the pattern for [14C]-BaP (metabolite profiles remained relatively consistent) and non-compartmental analysis did not indicate other significant alterations. Significant amounts of metabolites in plasma were at the bay region of [14C]-BaP irrespective of treatment. Although the number of subjects and large interindividual variation are limitations of this study, it represents the first human trial showing dietary intervention altering toxicokinetics of a defined dose of a known human carcinogen.


Assuntos
Benzo(a)pireno , Carcinógenos , Humanos , Suplementos Nutricionais , Toxicocinética
2.
Int J Vitam Nutr Res ; 2023 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-37335576

RESUMO

The mass ratio of urinary 2-hydroxyestrone to 16-α-hydroxyestrone (2:16) is hypothesized as a biomarker of breast cancer risk in premenopausal women, with higher ratios being theoretically protective. Cruciferous vegetable intake has been associated with higher urinary 2:16 in some studies. We investigated whether a whole-food supplement made from dried Brussels sprouts and kale would increase urinary 2:16 in comparison with placebo or cruciferous vegetables in women. This randomized, parallel arm, placebo-controlled, partly blinded study included 78 healthy premenopausal women (38-50 y) with screening urinary 2:16 ≤3.0. Subjects received either six capsules containing 550 mg dried Brussels sprouts and kale per capsule, 40 g daily alternating broccoli or Brussels sprouts, or placebo for eight weeks. Urinary 2:16 and creatinine were measured at baseline, four, and eight weeks. Intent-to-treat repeated measures-ANOVA with multiple imputation (n=100) for missing values identified no treatment effect (P=0.9) or treatment-by-time interaction (P=0.6); however, a significant time effect was noted (P=0.02). Per-protocol analyses including complete cases found no treatment effect (P=1) or treatment-by-time interaction (P=0.6); however, the significant time effect remained (P=0.03). Restricting analysis to subjects with >80% compliance maintained the time effect (P=0.02). Using Pearson correlations, android-pattern and android:gynoid fat were predictive of change (P≤0.05). In conclusion, neither cruciferous supplements nor an added vegetable serving altered urinary 2:16 in premenopausal women with eight weeks treatment. This ratio did vary with time, which is important for designing future trials.

3.
J Nutr ; 152(10): 2209-2217, 2022 10 06.
Artigo em Inglês | MEDLINE | ID: mdl-35524685

RESUMO

BACKGROUND: Adherence to a Mediterranean dietary pattern can protect against atherosclerosis in part by reducing intestinal permeability and gut microbial LPS production. Brussels chicory, a typical Mediterranean vegetable, has been shown to inhibit the formation of early-stage atherosclerosis in mice. OBJECTIVES: We evaluated whether Brussels chicory affects advanced atherosclerosis progression, intestinal permeability, and gut microbial LPS production. METHODS: Thirty-week-old male apoE-deficient mice with unstable atherosclerotic plaques in the brachiocephalic artery were fed the AIN-93G diet alone (control) or supplemented with 0.5% freeze-dried Brussels chicory for 20 wk. Plaque volume and features of plaque stability, plaque macrophage polarization, fecal and serum LPS concentrations, serum lipid profiles and inflammation-related cytokines, and gut microbial profiles were measured. RESULTS: Compared with the control treatment, Brussels chicory consumption did not significantly change plaque volume and serum lipid profiles. However, it increased plaque stability (P < 0.05), as evidenced by reduced necrotic core size (42.3%), and increased fibrous cap thickness (55.0%) and collagen content (68.4%). Moreover, Brussels chicory consumption reduced intestinal permeability (56.3%), fecal and serum LPS concentrations (52.2% and 39.4%), serum IL1ß and TNFα (52.0% and 33.8%), promoted plaque macrophage polarization towards the M2-like phenotype, and altered gut microbial composition, the latter indicated by increased relative abundance of certain members of the Ruminococcaceae family, such as Ruminiclostridium_9, Ruminiclostridium_5, and Intestinimonas (P < 0.05). Spearman correlation analyses further showed that these bacterial genera were significantly correlated with intestinal permeability, fecal and serum LPS, serum proinflammatory cytokines, and several features of plaque stability. CONCLUSIONS: Brussels chicory might help stabilize atherosclerotic plaques in mice by reducing intestinal permeability and gut microbial LPS production. This study provides a promising approach to slow the progression of atherosclerosis.


Assuntos
Aterosclerose , Cichorium intybus , Microbioma Gastrointestinal , Placa Aterosclerótica , Animais , Apolipoproteínas E/genética , Aterosclerose/sangue , Colágeno , Dieta , Lipopolissacarídeos , Masculino , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout para ApoE , Placa Aterosclerótica/genética , Fator de Necrose Tumoral alfa
4.
Molecules ; 27(6)2022 Mar 13.
Artigo em Inglês | MEDLINE | ID: mdl-35335226

RESUMO

Hydrothermal treatment of Brussels sprouts (Brassica oleracea var. gemmifera) induces both physical and chemical changes in nutrients and non-nutrients. It also affects the bioaccessibility of individual compounds. The aim of this study was to investigate the influence of hydrothermal treatment (boiling, steaming, and sous vide technique) on the concentration of the selected nutrients and non-nutrients in Brussels sprouts and in vitro bioaccessibility of the mineral components. It has been shown that, in terms of the leaching of nutrients and non-nutrients into the aqueous medium, traditional cooking in water involves the greatest percentage loss (the highest decrease in dry matter (11.8%), ash (13.3%), protein (10.4%), crude fat (43.3%), dietary fiber (9.5%), digestible carbohydrates (12.2%), and most of mineral components (7.6-39.8%)). In contrast, steam cooking and sous vide cooking of Brussels sprouts allow a higher level of preservation of the individual compounds. By using reduced process temperatures and vacuum packaging, sous vide cooking can be an alternative to traditional cooking to preserve the higher nutritional value of Brassica oleracea var. gemmifera (preservation of dry matter, ash, crude fat, and most of the mineral components at the level of the raw sample p ≤ 0.05).


Assuntos
Brassica , Antioxidantes/química , Brassica/química , Culinária/métodos , Minerais , Valor Nutritivo
5.
New Phytol ; 232(6): 2475-2490, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34537968

RESUMO

Plant-soil feedback (PSF) may influence plant-insect interactions. Although plant defense differs between shoot and root tissues, few studies have examined root-feeding insect herbivores in a PSF context. We examined here how plant growth and resistance against root-feeding Delia radicum larvae was influenced by PSF. We conditioned soil with cabbage plants that were infested with herbivores that affect D. radicum through plant-mediated effects: leaf-feeding Plutella xylostella caterpillars and Brevicoryne brassicae aphids, root-feeding D. radicum larvae, and/or added rhizobacterium Pseudomonas simiae WCS417r. We analyzed the rhizosphere microbial community, and in a second set of conspecific plants exposed to conditioned soil, we assessed growth, expression of defense-related genes, and D. radicum performance. The rhizosphere microbiome differed mainly between shoot and root herbivory treatments. Addition of Pseudomonas simiae did not influence rhizosphere microbiome composition. Plant shoot biomass, gene expression, and plant resistance against D. radicum larvae was affected by PSF in a treatment-specific manner. Soil conditioning overall reduced plant shoot biomass, Pseudomonas simiae-amended soil causing the largest growth reduction. In conclusion, shoot and root insect herbivores alter the rhizosphere microbiome differently, with consequences for growth and resistance of plants subsequently exposed to conditioned soil.


Assuntos
Afídeos , Brassica , Microbiota , Animais , Retroalimentação , Herbivoria , Larva , Raízes de Plantas , Rizosfera , Solo
6.
Qual Health Res ; 30(4): 583-597, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-31303115

RESUMO

Researchers propose that the convoy of care model should be used to study care networks of frail, older individuals. Care convoys are defined as the evolving collection of individuals who may or may not have close personal connections to the recipient or to one another, but who provide care, including help with activities of daily living (ADLs) and instrumental activities of daily living (IADLs), socio-emotional care, skilled health care, monitoring, and advocacy. This study reports on community-dwelling older adults' experiences of their care convoy, how care convoys change over time, and perceived (positive) outcomes. A qualitative analysis among 65 semi-structured interviews with frail, community-dwelling older adults demonstrates a great variety in the composition of care convoys. Participants were often actively involved in their care convoy and valued the social/relational aspect of care. Care and support covered a wide range of activities, with some activities being provided by specific types of caregivers. Participants expressed the adequacy of their care convoy in terms of satisfaction and sufficiency. Noteworthy, participants who were satisfied with their care convoy did not necessarily receive sufficient help. Policies and practice should recognize the relational aspect of care, the complex interplay between all actors, and the dynamic character of care convoys.


Assuntos
Atividades Cotidianas/psicologia , Cuidadores/psicologia , Idoso Fragilizado/psicologia , Vida Independente/psicologia , Satisfação do Paciente , Autocuidado/psicologia , Apoio Social , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
7.
Environ Manage ; 60(2): 263-279, 2017 08.
Artigo em Inglês | MEDLINE | ID: mdl-28477238

RESUMO

One of the major challenges facing river restoration in densely populated urban areas has been the disparity between the expectations of policy-makers and societal preferences. This study aimed to elicit public preferences and elucidate underlying sources of preference heterogeneity, using the Zenne River in central Brussels, Belgium, as a case study. A discrete choice experiment was administered to a representative sample of the Brussels population. Five attributes were specified, including water quality, ecological status, hydromorphological features of channels, recreational opportunities, and monetary cost. Our econometric analysis based on mixed logit models revealed that overall public would like to have a more natural river (open and naturalized channel, good water quality, and with rich species diversity), while achieving good water quality was the most preferred attribute. Respondents categorized as male, non-Belgian citizen, or not being a member of an environmental organization constituted an inclination to prefer the status quo. Belgian citizens showed a pronounced preference for good biodiversity, and being a member of an environmental organization could moderate the strong preference for good water quality. This study provided insights into the relative attractiveness of key attributes pertaining to river restoration, in general, and served as a useful input to the ongoing discussion concerning the future plan for the Zenne River in Brussels, specifically. Possible implications also exist for other urban river restorations in the rest of Europe, where the Water Framework Directive has become a major impetus for the expansion of freshwater ecosystem restoration from rural and peri-urban areas to densely populated urban areas. Particularly, the cultural heterogeneity of societal preferences should be tested and accounted for to compare the welfare impacts of river restoration and to facilitate benefit transfer, within and between river basins, in the Water Framework Directive implementation.


Assuntos
Comportamento de Escolha , Conservação dos Recursos Naturais/economia , Conservação dos Recursos Naturais/métodos , Formulação de Políticas , Rios , Urbanização , Bélgica , Ecossistema , Política Ambiental , Modelos Econométricos , Densidade Demográfica , Controles Informais da Sociedade , Qualidade da Água/normas
8.
Med Intensiva ; 39(1): 20-5, 2015.
Artigo em Espanhol | MEDLINE | ID: mdl-24768624

RESUMO

PURPOSE: To compare discrimination and calibration of the modified Brussels score with the Simplified Acute Physiology Score version 3 (SAPS-3) in predicting mortality. DESIGN: A prospective cohort study was carried out. SETTING: The Respiratory Intensive Care Unit (RICU) of Mexico General Hospital. PATIENTS: A total of 251 patients out of 285 admissions to the RICU in 2012 were included. The mean age was 48.4±17.1 years, and 132 of the patients were men (52.8%). INTERVENTIONS: None. VARIABLES OF INTEREST: Demographic data, SAPS-3 score upon admission and the modified Brussels score on the day 1 of stay in the RICU. RESULTS: On day 1, the modified Brussels and SAPS-3 scores were 4.7 ± 3.8 and 54.7 ± 17.8, respectively. Areas under the ROC curve for the modified Brussels score on day 1 and the SAPS-3 were 0.837 ± 0.025 (95% CI 0.787-0.887) and 0.813 ± 0.027 (95% CI 0.761-0.865), respectively. Hosmer-Lemeshow goodness-of-fit values were 5,885 (P=.660) and 4,026 (P=.855), respectively. CONCLUSIONS: The modified Brussels score on day 1 offers excellent discrimination and calibration in predicting mortality in the RICU, comparable to that of the SAPS-3.


Assuntos
Mortalidade Hospitalar , Unidades de Terapia Intensiva , Índice de Gravidade de Doença , Adulto , Área Sob a Curva , Calibragem , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Prospectivos , Curva ROC , Espanha
9.
Rev Epidemiol Sante Publique ; 62(1): 27-32, 2014 Feb.
Artigo em Francês | MEDLINE | ID: mdl-24388739

RESUMO

AIM: The increasing prevalence of sickle cell disease (SCD) is an important issue in Belgium due to migrations from high prevalence areas. It has become the most common genetic disease in Belgium. The impact is important in terms of health service delivery, especially since Belgian physicians have little experience with the disease. This study was designed to determine the current level of knowledge about SCD among medical students at the Louvain's Catholic University, Brussels. METHOD: This study was part of a larger cross-sectional and descriptive study carried out at the Louvain's Catholic University in December 2010. Data were collected from medical students using self-administered structured questionnaires. RESULTS: In this study, 152 students were enrolled. All respondents had heard about SCD, the majority during their medical school curriculum. All students (100%) thought SCD is an African disease. A majority recognized that SCD is a serious illness and that it is linked with malaria. Anemia was the most frequently cited symptoms (98.0%) followed by splenomegaly (77.5%). Only 51% reported pain as a symptom. A majority knew they would have patients with the disease in their future career but only 2.3% of students considered specializing in the field of SCD. Using criteria for scoring information delivery, awareness about SCD was among the lowest in Belgium. CONCLUSION: For Belgian medical students, SCD is an exotic disease. Too little information about SCD is delivered. Continuing medical education about SCD can be recommended for medical students in Belgium.


Assuntos
Anemia Falciforme , Conhecimentos, Atitudes e Prática em Saúde , Estudantes de Medicina , Adulto , Bélgica/epidemiologia , Escolha da Profissão , Estudos Transversais , Educação Médica/normas , Feminino , Humanos , Masculino , Especialização/estatística & dados numéricos , Estudantes de Medicina/estatística & dados numéricos , Inquéritos e Questionários , Adulto Jovem
10.
Eur J Popul ; 40(1): 5, 2024 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-38270711

RESUMO

Spatial assimilation theory asserts that immigrants' socioeconomic progress leads to residential adaptation and integration. This association has proven robust in USA and European urban areas through much of the twentieth century, but drastic change of ethnic and class compositions yet persistent (neighbourhood) inequality in the urban landscape urge us to reconsider the dynamic interaction between stability and change. In this study, we investigate to what extent education shapes residential mobility differently for young adults with varying ethnic and social origins. Focussing on Brussels, we use multinomial logistic regressions on linked longitudinal population-based censuses from 1991 and 2001 and register data for the period 2001-2006. Analyses show that dispersal away from poor inner-city neighbourhoods appears least likely for the offspring of poor low-educated non-Western households, regardless of their own educational attainment. While our approach roughly confirms traditional arguments of socio-spatial integration, it also reveals how educational success generates opportunities to escape poor neighbourhoods for some but not for others. With this, it points at the subtle ways in which factors and mechanisms in traditional spatial assimilation theory affect residential behaviour of young adults over their life course, at the intersection of specific locales, ethnic groups, social classes and generations.

11.
Foods ; 13(18)2024 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-39335916

RESUMO

Cruciferous vegetables represent a valuable source of bioactive compounds. However, there is currently a deficiency of information regarding the extent to which these compounds remain bioaccessible to the body following thermal treatment and digestion processes within the digestive tract. Accordingly, the aim of this study was to evaluate the impact of heat treatment and in vitro digestion on the level of selected bioactive compounds in Brussels sprouts. The Brussels sprouts samples were subjected to a range of thermal processing techniques, which were then followed by a simulated in vitro digestion. The investigated compounds were analyzed using UV-Vis spectrometry and liquid chromatography coupled with mass spectrometry (LC-MS). The findings revealed that the sous-vide method of cooking Brussels sprouts resulted in significantly higher losses of glucosinolates (GLS) in comparison to conventional cooking methods. No significant differences were observed with regard to isothiocyanates and indoles. The analysis of GLS following digestion revealed that the process was more effective after sous vide and traditional cooking, and slightly less effective after steam cooking. With regard to individual compounds, glucoraphanin (GRA), glucoraphenin (GIV), and gluconasturtiin (GNS) were found to be completely degraded, whereas methoxyglucobrassicin (metGBS) was the most resistant to digestion in both the sous vide and steamed Brussels sprouts. The results indicated that the process of simulating digestion had no significant impact on isothiocyanates and indoles. This suggests that, if present in the heat-treated samples, these compounds remained stable during the in vitro digestion procedure.

12.
Integr Environ Assess Manag ; 20(5): 1529-1538, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38712803

RESUMO

On 1 January 2021, the United Kingdom formally exited the European Union (EU; Brexit) and ceased to be subject to EU chemical regulation requirements. Before Brexit, UK chemical policy was regulated largely by the EU. With its large internal market, sophisticated regulatory capability, and stringent regulatory framework, the EU has become the world's leading regulatory state, regularly influencing global industrial decisions and practices. At the time of writing, there has been limited academic analysis of the implications of Brexit for UK chemical regulation. More than two years post-Brexit, we have the opportunity to assess UK chemical regulation and revisit early expectations about regulatory divergence. This article takes the EU's Regulation on the Registration, Evaluation, Authorisation, and Restriction of Chemicals (REACH) as a case study to analyze patterns of post-Brexit regulatory divergence, thereby providing one of the first analyses of the implications of Brexit on UK chemical regulation. Through the analysis and review of key documents and reports (n = 99), this article assesses the extent to which UK and EU regulatory (REACH) regimes are beginning to diverge and discusses the potential implications of any divergence for the United Kingdom. We find that the UK and EU chemical regulatory regimes are now evolving independently and provide clear, empirical evidence of an emerging divergence in regulatory decisions, ambitions, and approaches. The evidence suggests that the United Kingdom is currently unable to keep pace with EU developments, lacking the capacity, expertise, and capability of its EU counterparts, raising the prospect of further divergence in the future. Integr Environ Assess Manag 2024;20:1529-1538. © 2024 The Authors. Integrated Environmental Assessment and Management published by Wiley Periodicals LLC on behalf of Society of Environmental Toxicology & Chemistry (SETAC).


Assuntos
União Europeia , Reino Unido , Política Ambiental , Poluentes Ambientais
13.
Water Res ; 253: 121257, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38340702

RESUMO

Freshwaters have been recognized as important sources of greenhouse gases (GHG) to the atmosphere. However, urban ponds have received little attention even though their number is increasing due to expanding urbanisation globally. Ponds are frequently associated to urban green spaces that provide several ecosystemic services such as cooling local climate, regulating the water cycle, and acting as small carbon sinks This study aims to identify and understand the processes producing GHGs (CO2, CH4, and N2O) in the urban ponds of the temperate European city of Brussels in Belgium. 22 relatively small ponds (0.1-4.6 ha) surrounded by contrasted landscape (strictly urban, bordered by cropland or by forest), were sampled during four seasons in 2021-2022. The mean ± standard deviation was 3,667 ± 2,904 ppm for the partial pressure of CO2 (pCO2), 2,833 ± 4,178 nmol L-1 for CH4, and 273 ± 662% for N2O saturation level (%N2O). Relationships of GHGs with oxygen and water temperature suggest that biological processes controlled pCO2, CH4 concentration and%N2O. However, pCO2 was also controlled by external inputs as indicated by the higher values of pCO2 in the smaller ponds, more subject to external inputs than larger ones. The opposite was observed for CH4 concentration that was higher in larger ponds, closer to the forest in the city periphery, and with higher macrophyte cover. N2O concentrations, as well as dissolved inorganic nitrogen, were higher closer to the city center, where atmospheric nitrogen deposition was potentially higher. The total GHG emissions from the Brussels ponds were estimated to 1kT CO2-eq per year and were equivalent to the carbon sink of urban green spaces.


Assuntos
Gases de Efeito Estufa , Gases de Efeito Estufa/análise , Dióxido de Carbono , Estações do Ano , Lagoas , Metano/análise , Monitoramento Ambiental , Nitrogênio , Óxido Nitroso/análise
14.
Am J Vet Res ; : 1-5, 2024 Oct 03.
Artigo em Inglês | MEDLINE | ID: mdl-39362278

RESUMO

OBJECTIVE: The investigators' hypothesis is that Jack Russell Terriers (JRTs), Miniature Pinschers (MPs), and Brussels Griffons (BGs) without underlying cardiac disease have breed-specific vertebral heart size (VHS) reference intervals. METHODS: The electronic medical records of IDEXX Telemedicine Consultants were searched for JRTs, MPs, and BGs undergoing radiography from January 1, 2023, through June 30, 2023. The study range was expanded to January 1 2022, through June 30, 2023, for BGs only to improve case volume. Dogs were included if they had 2- or 3-view thoracic radiographs performed and no evidence of cardiopulmonary or systemic disease. The VHS and vertebral left atrial size (VLAS) measurements were performed by the same board-certified cardiologist for all images. RESULTS: During the study period, a total of 991 JRTs, 750 MPs, and 399 BGs were identified. Of these, 689 JRTs, 512 MPs, and 267 BGs were excluded, leaving 302 JRTs, 238 MPs, and 132 BGs available for analysis. The reference intervals for JRTs were 9.7v to 11.8v for VHS and 1.8v to 2.6v for VLAS. The reference intervals for MPs were 9.6v to 12.2v for VHS and 1.7v to 2.4v for VLAS. The reference intervals for BGs were 9.3v to 11.9v for VHS and 1.7v to 2.4v for VLAS. CONCLUSIONS: Jack Russell Terriers, MPs, and BGs have breed-specific VHS and VLAS reference intervals. CLINICAL RELEVANCE: Clinicians should be aware of these results to accurately diagnose cardiac disease in these 3 breeds.

16.
Food Res Int ; 169: 112864, 2023 07.
Artigo em Inglês | MEDLINE | ID: mdl-37254313

RESUMO

Processing can affect (bio)chemical conversions in vegetables and can act on their volatile properties accordingly. In this study, the integrated effect of pretreatment and pasteurization on the volatile profile of leek and Brussels sprouts and the change of this profile upon refrigerated storage were investigated. Pretreatments were specifically selected to steer biochemical reactivities to different extents. Volatile profiles were analyzed by headspace-solid phase microextraction-gas chromatography-mass spectrometry. For both vegetables, it was observed that different pretreatments prior to a pasteurization step led to diverse volatile profiles. The differences in volatile profiles observed in the different samples were presumably attributed to the different degrees of enzymatic conversions, further conversions of enzymatically formed products and thermally induced reactivities. Interestingly, the observed initial relative differences between volatile profiles of differently pretreated pasteurized samples were still observed after a refrigerated storage of 4 weeks at 4 °C. In conclusion, refrigerated storage only limitedly affected the resulting volatile profile.


Assuntos
Brassica , Cebolas , Brassica/química , Verduras/química , Cromatografia Gasosa-Espectrometria de Massas/métodos , Pasteurização
17.
Arch Public Health ; 81(1): 129, 2023 Jul 07.
Artigo em Inglês | MEDLINE | ID: mdl-37420293

RESUMO

BACKGROUND: This paper aims at analysing the impact of partial non-response in the association between urban environment and mental health in Brussels. The potential threats of the partial non-response are biases in survey estimates and statistics. The effect of non-response on statistical associations is often overlooked and evidence in the research literature is lacking. METHODS: Data from the Belgian Health Interview Survey 2008 and 2013 were used. The association between non-response and potential determinants was explored through logistic regressions. RESULTS: Participants with low income, low educational levels, lower or higher age or in households with children were less likely to respond. When adjusting for socio-economic variables, non-response was higher in areas which are less vegetated, more polluted or more urbanised. Because the determinants of non-response and depressive disorders were similar, it is reasonable to assume that there will be more people with mental health problems among the non-respondents. And because more non-responses were found in low vegetation areas, the protective association between green spaces and mental health may be underestimated. CONCLUSION: Our capacity to measure the association between the urban environment and health is affected by non-response in surveys. The non-random spatial and socio-economic distribution of this bias affects the research findings.

18.
Nutrients ; 15(4)2023 Feb 06.
Artigo em Inglês | MEDLINE | ID: mdl-36839190

RESUMO

Brussels chicory, a typical vegetable in Mediterranean diets, has been recently reported to stabilize advanced atherosclerotic plaques in the brachiocephalic artery of apoE-deficient (Apoe-/-) mice. Herein, we investigated whether Brussels chicory can stabilize advanced plaques in the aorta via improving oxidative stress. Thirty week old Apoe-/- mice were fed the AIN-93G diet or supplemented with 0.5% freeze-dried Brussels chicory for twenty weeks. Aortic plaque size and stability, aortic relaxation, monocyte adhesion to aortic endothelium, free radicals, and enzymatic and non-enzymatic factors involved in free radical production and elimination in aorta and serum were measured. Brussels chicory consumption did not alter aortic plaque size, however, it stabilized aortic plaques, promoted aortic relaxation, and also inhibited monocyte adhesion to aortic endothelium. Moreover, this administration reduced oxidized LDL (ox-LDL) and 4-hydroxynonenal (4-HNE) content in aortic plaques, associated with inhibited aortic NADPH oxidase (NOX) and uncoupled endothelial nitric oxide synthase (eNOS)-mediated free radical production. However, Brussels chicory consumption did not appreciably alter aortic and serum superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activities, aortic glutathione (GSH), as well as serum non-enzymatic antioxidants, such as bilirubin, uric acid, and GSH. Collectively, improved oxidative stress might contribute to the atheroprotective effect of Brussels chicory, supporting the prospect of the antioxidant therapy in advanced atherosclerosis progression.


Assuntos
Aterosclerose , Cichorium intybus , Dieta Mediterrânea , Placa Aterosclerótica , Animais , Camundongos , Antioxidantes/metabolismo , Cichorium intybus/química , Glutationa , Estresse Oxidativo , Verduras/metabolismo , Camundongos Knockout para ApoE
19.
Digit Soc ; 2(1): 5, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36713889

RESUMO

Anu Bradford has described the European Union's ability to externalise its norms and standards as the so-called Brussels effect. We apply the Brussels effect to select issues discussed via the EU-US Trade and Technology Council (TTC) and show that its capacity to project power stems not only from the EU's market size but also from its domestic decision-making structure. The political capital accumulated in the EU's consensus-based and inclusive deliberations functions as an effective instrument for motivating other states to adopt European regulations, as legislative acts resulting from European inter-institutional and multi-level policy-making hold high standards of legal certainty and signal European strategic goals and political commitments credibly. Knowing that European consensus is an important condition for externalisation, Brussels can facilitate consensus by calling for internal compromise in order to be able to take the European compromise to the international stage. Thus, the internal and external dimensions of the Brussels effect are mutually reinforcing. This twofold appearance demarcates it from the California effect and the Beijing effect.

20.
Foods ; 11(18)2022 Sep 17.
Artigo em Inglês | MEDLINE | ID: mdl-36141018

RESUMO

Pulsed electric fields (PEF) at low field strength is considered a non-thermal technique allowing membrane permeabilization in plant-based tissue, hence possibly impacting biochemical conversions and the concomitant volatile profile. Detailed studies on the impact of PEF at low field strength on biochemical conversions in plant-based matrices are scarce but urgently needed to provide the necessary scientific basis allowing to open a potential promising field of applications. As a first objective, the effect of PEF and other treatments that aim to steer biochemical conversions on the volatile profile of Brussels sprouts was compared in this study. As a second objective, the effect of varying PEF conditions on the volatile profile of Brussels sprouts was elucidated. Volatile fingerprinting was used to deduce whether and which (bio)chemical reactions had occurred. Surprisingly, PEF at 1.01 kV/cm and 2.7 kJ/kg prior to heating was assumed not to have caused significant membrane permeabilization since similar volatiles were observed in the case of only heating, as opposed to mixing. A PEF treatment with an electrical field strength of 3.00 kV/cm led to a significantly higher formation of certain enzymatic reaction products, being more pronounced when combined with an energy input of 27.7 kJ/kg, implying that these PEF conditions could induce substantial membrane permeabilization. The results of this study can be utilized to steer enzymatic conversions towards an intended volatile profile of Brussels sprouts by applying PEF.

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