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1.
BMC Med Educ ; 24(1): 647, 2024 Jun 11.
Artigo em Inglês | MEDLINE | ID: mdl-38858668

RESUMO

INTRODUCTION: Virtual Patients (VPs) have been shown to improve various aspects of medical learning, however, research has scarcely delved into the specific factors that facilitate the knowledge gain and transfer of knowledge from the classroom to real-world applications. This exploratory study aims to understand the impact of integrating VPs into classroom learning on students' perceptions of knowledge acquisition and transfer. METHODS: The study was integrated into an elective course on "Personalized Medicine in Cancer Treatment and Care," employing a qualitative and quantitative approach. Twenty-two second-year medical undergraduates engaged in a VP session, which included role modeling, practice with various authentic cases, group discussion on feedback, and a plenary session. Student perceptions of their learning were measured through surveys and focus group interviews and analyzed using descriptive statistics and thematic analysis. RESULTS: Quantitative data shows that students highly valued the role modeling introduction, scoring it 4.42 out of 5, and acknowledged the practice with VPs in enhancing their subject matter understanding, with an average score of 4.0 out of 5. However, students' reflections on peer dialogue on feedback received mixed reviews, averaging a score of 3.24 out of 5. Qualitative analysis (of focus-group interviews) unearthed the following four themes: 'Which steps to take in clinical reasoning', 'Challenging their reasoning to enhance deeper understanding', 'Transfer of knowledge ', and ' Enhance Reasoning through Reflections'. Quantitative and qualitative data are cohered. CONCLUSION: The study demonstrates evidence for the improvement of learning by incorporating VPs with learning activities. This integration enhances students' perceptions of knowledge acquisition and transfer, thereby potentially elevating students' preparedness for real-world clinical settings. Key facets like expert role modeling and various authentic case exposures were valued for fostering a deeper understanding and active engagement, though with some mixed responses towards peer feedback discussions. While the preliminary findings are encouraging, the necessity for further research to refine feedback mechanisms and explore a broader spectrum of medical disciplines with larger sample sizes is underscored. This exploration lays a groundwork for future endeavors aimed at optimizing VP-based learning experiences in medical education.


Assuntos
Educação de Graduação em Medicina , Grupos Focais , Estudantes de Medicina , Humanos , Estudantes de Medicina/psicologia , Feminino , Masculino , Currículo , Simulação de Paciente , Medicina de Precisão , Pesquisa Qualitativa , Aprendizagem , Competência Clínica , Transferência de Experiência , Avaliação Educacional
2.
Adv Med Educ Pract ; 15: 281-291, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38600963

RESUMO

Background: Palliative care teams provide support to patients and their caregivers during terminal illness, which requires interprofessional collaboration. One of the foundational skills is to assist patients with decision-making. This can be facilitated through interprofessional shared decision-making (IP-SDM). So far, IP-SDM education frameworks have only been used to a limited extent in the area of palliative care. Aim: This study aims to explore perceptions and practices of faculty members, health professionals, and students toward IP-SDM education in palliative care and to indicate associated factors to implement an IP-SDM in undergraduate health professions education in palliative care settings. Methods: We used a cross-sectional study design in which the data was obtained via an online self-administered questionnaire adapted from existing validated tools. The questionnaire was distributed to faculty members and health professionals (n = 125) and students (n = 334) at King Abdulaziz Medical City in Jeddah, Saudi Arabia. The sampling technique was a non-probability convenience sampling. Bivariate statistics, such as independent sample t-tests, one-way ANOVA, correlation coefficient, and linear multiple regression were conducted. Findings: The response rate was 54% (85 faculty members and health professionals and 164 students). Perceptions on IP-SDM did not differ between participants. From those who had previous experience with IP-SDM, the mean practices score was slightly higher for faculty members and health professionals (M = 83.1, SD = 15.9) than for students (M = 74.1, SD = 11.5), which was significant (p < 0.05). Factors such as gender, age, discipline, nationality, level of education, years of study, and previous experience that were associated with perceptions and practices were varied among participants. Conclusion: The findings show high levels of perception with low levels of practice of IP-SDM in palliative care. Other factors that could be associated with the topic should be addressed in further studies.

3.
Cureus ; 15(8): e44039, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37638267

RESUMO

Introduction Shared decision-making (SDM) in palliative care is a highly complex process that requires an interdisciplinary team. Interprofessional team members need education on how to facilitate discussion of patient/family wishes at the end of life in hospital settings. So far, interprofessional shared decision-making (IP-SDM) education frameworks have been used to a limited extent in the area of education on palliative care. The aim of this study was to explore policymakers', health professionals', faculty members', and students' perspectives on implementing an IP-SDM educational framework in palliative care to identify aspects that should be prioritized to further develop interprofessional education for SDM in palliative care. Methods We used the qualitative method to capture the micro, meso, and macro factors using Oandasan and Reeves' model for the implementation of IP-SDM education regarding palliative care. Data collection tools included in-depth, face-to-face interviews with individual policymakers and focus group interviews with health professionals, faculty members, and undergraduate health professionals. The interview guide explores the teaching of SDM in palliative care, factors that could facilitate or hinder the implementation of IP-SDM education for health professions students in palliative care, and interventions to facilitate the implementation of this approach. This study was conducted at the Oncology and Palliative Care Department at King Abdulaziz Medical City in the Ministry of National Guard Health Affairs and at King Saud bin Abdulaziz University for Health Sciences in Jeddah, Saudi Arabia. Results The results indicated a high demand for IP-SDM in palliative care. The findings revealed factors that can facilitate or hinder the implementation of IP-SDM education in palliative care for undergraduate health professions students that is going to the local community. Factors include culture, religion, gender, power issues, team hierarchy, and respect among team members. Also, our findings have revealed potential solutions to the hindering factors. Conclusions IP-SDM education in palliative care is a highly relevant topic for improving patient outcomes. However, it might be a complex process to implement, especially given the challenges of palliative care settings. We recommend starting such a course in the early clinical phases of undergraduate health professional education.

4.
Artigo em Inglês | MEDLINE | ID: mdl-36981983

RESUMO

Young carers provide a substantial amount of care to family members and support to friends, yet their situation has not been actively addressed in research and policy in many European countries or indeed globally. Awareness of their situation by professionals and among children and young carers themselves remains low overall. Thus, young carers remain a largely hidden group within society. This study reports and analyses the recruitment process in a multi-centre intervention study offering psychosocial support to adolescent young carers (AYCs) aged 15-17 years. A cluster-randomised controlled trial was designed, with recruitment taking place in Italy, the Netherlands, Slovenia, Sweden, Switzerland and the United Kingdom exploiting various channels, including partnerships with schools, health and social services and carers organisations. In total, 478 AYCs were recruited and, after screening failures, withdrawals and initial dropouts, 217 were enrolled and started the intervention. Challenges encountered in reaching, recruiting and retaining AYCs included low levels of awareness among AYCs, a low willingness to participate in study activities, uncertainty about the prevalence of AYCs, a limited school capacity to support the recruitment; COVID-19 spreading in 2020-2021 and related restrictions. Based on this experience, recommendations are put forward for how to better engage AYCs in research.


Assuntos
COVID-19 , Cuidadores , Criança , Humanos , Adolescente , Cuidadores/psicologia , Sistemas de Apoio Psicossocial , Europa (Continente) , Família
5.
Public Health Rev ; 43: 1604795, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35992752

RESUMO

Objectives: Students would like to see more creativity and flexibility in the performance of problem-based learning (PBL). Therefore, we applied flipped classroom formats in a course of the Bachelor European Public Health at Maastricht University to investigate the experiences of the students. The main objective was to stimulate interaction between students mutual, and between students and teachers. Methods: 304 first-year students following the course on "Ageing in Europe" in three academic years, were asked to fill out questions focussing on prior knowledge, preparation work, and group session parameters, e.g., duration, content, extent of interaction and format group session. Results: In-class activities, such as debate, making a mind map, giving a pitch, role-play e.g., were highly appreciated by students, especially the interactivity and discussions with the experts during these sessions. Students felt they applied knowledge. Conclusion: Flipped classroom formats can be used to extend the Maastricht University PBL design and students do recommend this. It can be a relevant and challenging answer on the articulated request for more creativity and flexibility in the regular PBL format.

6.
Artigo em Inglês | MEDLINE | ID: mdl-36011572

RESUMO

Young carers are children and adolescents who provide care to other family members or friends, taking over responsibilities that are usually associated with adulthood. There is emerging but still scarce knowledge worldwide about the phenomenon of young carers and the impact of a caring role on their health, social and personal development spheres. This paper provides an overview of the main results from the ME-WE project, which is the first European research and innovation project dedicated to adolescent young carers (AYCs) (15-17 years). The project methods relied on three main activities: (1) a systematization of knowledge (by means of a survey to AYCs, country case studies, Delphi study, literature review); (2) the co-design, implementation and evaluation of a primary prevention intervention addressing AYCs' mental health (by means of Blended Learning Networks and a clinical trial in six European countries); (3) the implementation of knowledge translation actions for dissemination, awareness, advocacy and lobbying (by means of national and international stakeholder networks, as well as traditional and new media). Project results substantially contributed to a better understanding of AYCs' conditions, needs and preferences, defined tailored support intervention (resilient to COVID-19 related restrictions), and significant improvements in national and European policies for AYCs.


Assuntos
COVID-19 , Cuidadores , Adolescente , Adulto , Cuidadores/psicologia , Criança , União Europeia , Família , Humanos , Políticas
7.
Ned Tijdschr Geneeskd ; 1662022 07 18.
Artigo em Holandês | MEDLINE | ID: mdl-35899755

RESUMO

A 6-month-old girl with an isolated bald spot was seen at the general practice. We diagnosed aplasia cutis congenita, a rare disorder with a wide variation in clinical symptoms. Most lesions can be managed conservatively. Larger defects, however, require surgery.


Assuntos
Displasia Ectodérmica , Doenças Raras , Couro Cabeludo , Alopecia/diagnóstico , Alopecia/etiologia , Displasia Ectodérmica/diagnóstico , Displasia Ectodérmica/patologia , Displasia Ectodérmica/cirurgia , Família , Feminino , Humanos , Lactente , Couro Cabeludo/patologia
8.
BMC Health Serv Res ; 20(1): 921, 2020 Oct 07.
Artigo em Inglês | MEDLINE | ID: mdl-33028311

RESUMO

BACKGROUND: Across Europe, young carers (YCs) and their need for support receive limited attention in the media, policy and empirical research, even though, similar to adult carers, they also provide care to ill family members. The Delphi study, a qualitative research methodology, which provides the focus for this article, had the overall aim of exploring existing successful strategies to support YCs. Compared to YCs, even less is known about adolescent young carers (AYCs), a group that is in a critical life transition phase. The study forms part of an EU Horizon 2020 funded research project on AYCs aged 15-17 years old. METHODS: A two-round Delphi study was conducted with 66 experts on YCs from 10 European countries. Topics included: (i) visibility and awareness-raising of YCs at local, regional, and national levels, (ii) current interventions to support YCs, and (iii) future strategies to support YCs. RESULTS: Experts reported a lack of visibility and awareness about YCs in general, and AYCs in particular. Although awareness is slowly increasing in most countries, with the UK ranked highest, experts acknowledged that it remains challenging to identify YCs in many countries. Furthermore, the level and type of support available for YCs differs, with most countries mainly offering support on a local level. Diverse views were expressed regarding future strategies to support YCs. Experts highlighted the importance of specific legislation to formalise the rights of YCs, and the issue of whether young people should be safeguarded from caregiving or if this should be considered part of regular family life. They also emphasised the relevance of available integrated support services for YCs, including schools, family, health and social care. CONCLUSIONS: In most European countries, there is a lack of awareness and visibility on YCs. Identification of YCs is a crucial first step and there is need for a common definition of YCs, together with greater opportunities for young adults to identify themselves as YCs.


Assuntos
Conscientização , Cuidadores/psicologia , Apoio Social , Adolescente , Cuidadores/estatística & dados numéricos , Técnica Delphi , Europa (Continente) , Feminino , Humanos , Masculino
9.
Clin Child Psychol Psychiatry ; 25(3): 565-578, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32508158

RESUMO

Little is known about how play affects the development of children with a chronic condition. Studying play poses major methodological challenges in measuring differences in play behaviour, which results in a relative scarcity of research on this subject. This pilot study seeks to provide novel directions for research in this area. The effectiveness of a play- and sports-based cognitive behavioural programme for children (8-12 years) with a chronic condition was studied. The children and parents completed a battery of measurement tools before and after the programme. Moreover, the application of automated computer analyses of behaviour was piloted. Behaviour (Child Behavior Checklist) seemed to be positively affected by the programme. An increase in psychological well-being was observed (KIDSCREEN). Perceived competence (Self-Perception Profile for Children) and actual motor competence (Canadian Agility and Movement Skill Assessment) did not show any positive trends. These results of 13 participants suggest that children might learn to better cope with their illness by stimulating play behaviour. For the analysis of the effectiveness of programmes like this, we therefore propose to focus on measuring behaviour and quality of life. In addition, pilot measurements showed that automated analysis of play can provide important insights into the participation of children.


Assuntos
Adaptação Psicológica , Comportamento Infantil , Doença Crônica/reabilitação , Terapia Cognitivo-Comportamental , Exercício Físico , Satisfação Pessoal , Jogos e Brinquedos , Psicoterapia de Grupo , Autoimagem , Criança , Comportamento Infantil/psicologia , Exercício Físico/psicologia , Feminino , Humanos , Masculino , Avaliação de Resultados em Cuidados de Saúde , Projetos Piloto , Jogos e Brinquedos/psicologia , Desenvolvimento de Programas , Esportes
10.
Ned Tijdschr Geneeskd ; 1642020 Mar 25.
Artigo em Holandês | MEDLINE | ID: mdl-32392007

RESUMO

The current guidelines for diagnosis and treatment of primary respiratory infections are still useful during the COVID-19 epidemic.Telephone triage of patients with respiratory complaints aims to identify patients with complications or an increased risk of complications.There are no indications to test for SARS-CoV-2 virus in general practice.During this COVID-19 epidemic, protective clothing is recommended in all physical contacts with patients with respiratory complaints.There is no reason to be cautious about using NSAIDs in patients suspected of COVID-19.Amoxicillin is first choice treatment for respiratory infections during the COVID-19 epidemic; there is lack of evidence to support azithromycin as a first choice.Respiratory rate > 24 / min or saturation <92-94% indicate imminent respiratory decompensation and may be reasons for referral.


Assuntos
Betacoronavirus , Infecções por Coronavirus/diagnóstico , Medicina Geral , Pneumonia Viral/diagnóstico , Infecções Respiratórias/virologia , Idoso de 80 Anos ou mais , Amoxicilina/uso terapêutico , Antibacterianos/uso terapêutico , Anti-Inflamatórios não Esteroides/uso terapêutico , COVID-19 , Infecções por Coronavirus/epidemiologia , Infecções por Coronavirus/prevenção & controle , Feminino , Medicina Geral/métodos , Medicina Geral/normas , Humanos , Masculino , Pessoa de Meia-Idade , Pandemias/prevenção & controle , Pneumonia Viral/epidemiologia , Pneumonia Viral/prevenção & controle , Infecções Respiratórias/tratamento farmacológico , SARS-CoV-2 , Triagem
11.
Psychol Bull ; 145(5): 459-489, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30777768

RESUMO

Experiencing child sexual abuse (CSA) is a major public health problem with serious consequences for CSA victims. For effective assessment and (preventive) intervention, knowledge on risk factors and their effects is crucial. Here, the aim was to synthesize research on associations between (putative) risk factors and CSA victimization. In total, 765 (putative) risk factors were extracted from 72 studies, which were classified into 35 risk domains. A series of three-level meta-analyses produced a significant mean effect for 23 of the 35 risk domains ranging from r = .101 to r = .360. The strongest effects were found for prior victimization of the child and/or its family members, such as prior CSA victimization of the child and/or siblings (r = .360), prior victimization of the child other than child abuse (r = .340), prior or concurrent forms of child abuse in the child's home environment (r = .267), and a parental history of child abuse victimization (r = .265). Other identified risks were related to parental problems (e.g., intimate partner violence, r = .188), parenting problems (e.g., low quality of parent-child relation, r = .292), a non-nuclear family structure (e.g., having a stepfather, r = .118), family problems (e.g., social isolation, r = .191), child problems (e.g., having a mental/physical chronic condition, r = .193), and other child characteristics (e.g., being female, r = .290). Moderator analyses suggested that contact CSA victimization may be better predicted than noncontact CSA victimization. It was concluded that an ecological perspective on preventing CSA victimization is necessary. (PsycINFO Database Record (c) 2019 APA, all rights reserved).


Assuntos
Abuso Sexual na Infância/psicologia , Abuso Sexual na Infância/estatística & dados numéricos , Vítimas de Crime/psicologia , Vítimas de Crime/estatística & dados numéricos , Adolescente , Adulto , Criança , Feminino , Nível de Saúde , Humanos , Masculino , Relações Pais-Filho , Pais/psicologia , Fatores de Risco , Fatores Sexuais , Isolamento Social
13.
Public Health Rev ; 39: 13, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29881645

RESUMO

BACKGROUND: Public health leaders are confronted with complex problems, and developing effective leadership competencies is essential. The teaching of leadership is still not common in public health training programs around the world. A reconceptualization of professional training is needed and can benefit from innovative educational approaches. Our aim was to explore learners' perceptions of the effectiveness and appeal of a public health leadership course using problem-based, blended learning methods that used virtual learning environment technologies. CASE PRESENTATION: In this cross-sectional evaluative study, the Self-Assessment Instrument of Competencies for Public Health Leaders was administered before and after an online, blended-learning, problem-based (PBL) leadership course. An evaluation questionnaire was also used to measure perceptions of blended learning, problem-based learning, and tutor functioning among 19 public health professionals from The Netherlands (n = 8), Lithuania (n = 5), and Austria (n = 6).Participants showed overall satisfaction and knowledge gains related to public health leadership competencies in six of eight measured areas, especially Political Leadership and Systems Thinking. Some perceptions of blended learning and PBL varied between the institutions. This might have been caused by lack of experience of the educational approaches, differing professional backgrounds, inexperience of communicating in the online setting, and different expectations towards the course. CONCLUSIONS: Blended, problem-based learning might be an effective way to develop leadership competencies among public health professionals in international and interdisciplinary context.

14.
Front Pediatr ; 6: 122, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29761094

RESUMO

Background: The Dutch Active Healthy Kids (AHK) Report Card+ (RC+) consolidates and translates research and assesses how the Netherlands is being responsible in providing physical activity (PA) opportunities for youth (< 18 years) with a chronic disease or disability. The aim of this article is to summarize the results of the Dutch RC+. Methods: Nine indicators were graded using the AHK Global Alliance RC development process, which includes a synthesis of best available research, surveillance, policy and practice findings, and expert consensus. Two additional indicators were included: weight status and sleep. Results: Grades assigned were: Overall Physical Activity, D; Organized Sports Participation, B-; Active Play, C-; Active Transportation, A-; Sedentary Behavior, C; Sleep C; For Weight Status, Family and Peers, School, Community and Built Environment, Government Strategies, and Investments all INC. Conclusions: The youth with disabilities spend a large part of the day sedentary, since only 26% of them met the PA norm for healthy physical activity. Potential avenues to improve overall physical activity are changing behaviors regarding sitting, screen time, and active play. The Netherlands is on track regarding PA opportunities for youth with disabilities, however they are currently not able to participate unlimited in sports and exercise.

15.
J Cachexia Sarcopenia Muscle ; 8(3): 466-474, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28150387

RESUMO

BACKGROUND: Handgrip strength (HGS) is used to identify individuals with low muscle strength (dynapenia). The influence of the number of attempts on maximal HGS is not yet known and may differ depending on age and health status. This study aimed to assess how many attempts of HGS are required to obtain maximal HGS. METHODS: Three cohorts (939 individuals) differing in age and health status were included. HGS was assessed three times and explored as continuous and dichotomous variable. Paired t-test, intraclass correlation coefficients (ICC) and Bland-Altman analysis were used to test reproducibility of HGS. The number of individuals with misclassified dynapenia at attempts 1 and 2 with respect to attempt 3 were assessed. RESULTS: Results showed the same pattern in all three cohorts. Maximal HGS at attempts 1 and 2 was higher than at attempt 3 on population level (P < 0.001 for all three cohorts). ICC values between all attempts were above 0.8, indicating moderate to high reproducibility. Bland-Altman analysis showed that 41.0 to 58.9% of individuals had the highest HGS at attempt 2 and 12.4 to 37.2% at attempt 3. The percentage of individuals with a maximal HGS above the gender-specific cut-off value at attempt 3 compared with attempts 1 and 2 ranged from 0 to 50.0%, with a higher percentage of misclassification in middle-aged and older populations. CONCLUSIONS: Maximal HGS is dependent on the number of attempts, independent of age and health status. To assess maximal HGS, at least three attempts are needed if HGS is considered to be a continuous variable. If HGS is considered as a discrete variable to assess dynapenia, two attempts are sufficient to assess dynapenia in younger populations. Misclassification should be taken into account in middle-aged and older populations.


Assuntos
Força da Mão , Adolescente , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Estudos de Coortes , Estudos Transversais , Avaliação Geriátrica , Nível de Saúde , Humanos , Pessoa de Meia-Idade , Força Muscular , Reprodutibilidade dos Testes , Adulto Jovem
16.
Perspect Med Educ ; 3(4): 278-288, 2014 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-24458338

RESUMO

Blended learning in which online education is combined with face-to-face education is especially useful for (future) health care professionals who need to keep up-to-date. Blended learning can make learning more efficient, for instance by removing barriers of time and distance. In the past distance-based learning activities have often been associated with traditional delivery-based methods, individual learning and limited contact. The central question in this paper is: can blended learning be active and collaborative? Three cases of blended, active and collaborative learning are presented. In case 1 a virtual classroom is used to realize online problem-based learning (PBL). In case 2 PBL cases are presented in Second Life, a 3D immersive virtual world. In case 3 discussion forums, blogs and wikis were used. In all cases face-to-face meetings were also organized. Evaluation results of the three cases clearly show that active, collaborative learning at a distance is possible. Blended learning enables the use of novel instructional methods and student-centred education. The three cases employ different educational methods, thus illustrating diverse possibilities and a variety of learning activities in blended learning. Interaction and communication rules, the role of the teacher, careful selection of collaboration tools and technical preparation should be considered when designing and implementing blended learning.

17.
Food Chem Toxicol ; 54: 35-42, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22981906

RESUMO

This paper presents the benefit-risk assessment of adding plant sterols to margarine as an illustration of the QALIBRA method and software. With the QALIBRA tool health effects, risks as well as benefits are expressed in a common metric (DALY) which allows quantitative balancing of benefits and risks of food intake. The QALIBRA software can handle uncertainties in a probabilistic simulation. This simple case study illustrates the data need and assumptions that go into a quantitative benefit-risk assessment. The assessment shows that the benefits of plant sterols added to margarine outweigh the risks, if any.


Assuntos
Margarina/análise , Modelos Teóricos , Plantas/química , Medição de Risco , Esteróis/administração & dosagem , Humanos , Países Baixos , Probabilidade , Incerteza
18.
Food Chem Toxicol ; 54: 43-9, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22902968

RESUMO

If a diet, food or food constituent is recognised to have both health benefits and health risks, the benefits have to be compared with the risks to develop coherent scientific evidence-based dietary advice. This means that both risk and benefit assessment should follow a similar paradigm and that benefits and risks are expressed in a common currency. Dose-response functions are vital for that purpose. However, the construction of these functions is often of second interest in the currently available (epidemiological) literature. In order to bring forward the potential of epidemiological studies for the construction of the dose-response functions for benefit-risk purposes, the scientific (nutrition and health) community is asked to expand on their data presentation, either by presenting more detailed data focusing on dose-response necessities, and/or by sharing primary data.


Assuntos
Relação Dose-Resposta a Droga , Ciências da Nutrição , Humanos , Medição de Risco
19.
Food Chem Toxicol ; 54: 30-4, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22079313

RESUMO

The fish ingredient N3-docosahexaenoic acid 22:6 n-3 (DHA) stimulates brain development. On the other hand methylmercury (MeHg) in fish disturbs the developing central nervous system. In this Context the IQ score in children is considered as an aggregate measure of in utero brain development. To determine the effect of DHA exposure on prenatal neurodevelopment the maternal DHA intake during pregnancy was compared with its epidemiologically observed effect on the IQ score of children. For MeHg the maternal intake was converted into its accumulation in the maternal body. The maternal body burden then was compared with its epidemiologically observed relationship with the IQ score. Taking the MeHg and DHA content of 33 fish species the net effect of these compounds on the IQ score was quantified. For most fish species the adverse effect of MeHg on the IQ score exceeded the beneficial effect of DHA. In the case of long-living predators a negative effect up to 10 points on the IQ score was found. The results of this study indicate that food interventions aiming at the beneficial effects of fish consumption should focus on fish species with a high DHA content, while avoiding fish species with a high MeHg content.


Assuntos
Sistema Nervoso Central/embriologia , Exposição Materna , Medição de Risco , Alimentos Marinhos , Adulto , Carga Corporal (Radioterapia) , Criança , Ácidos Docosa-Hexaenoicos/administração & dosagem , Feminino , Humanos , Compostos de Metilmercúrio/farmacocinética , Compostos de Metilmercúrio/toxicidade , Gravidez , Efeitos Tardios da Exposição Pré-Natal
20.
Food Chem Toxicol ; 54: 4-17, 2013 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-23261673

RESUMO

The EU project BRAFO proposed a framework for risk-benefit assessment of foods, or changes in diet, that present both potential risks and potential benefits to consumers (Hoekstra et al., 2012a). In higher tiers of the BRAFO framework, risks and benefits are integrated quantitatively to estimate net health impact measured in DALYs or QALYs (disability- or quality-adjusted life years). This paper describes a general model that was developed by a second EU project, Qalibra, to assist users in conducting these assessments. Its flexible design makes it applicable to a wide range of dietary questions involving different nutrients, contaminants and health effects. Account can be taken of variation between consumers in their diets and also other characteristics relevant to the estimation of risk and benefit, such as body weight, gender and age. Uncertainty in any input parameter may be quantified probabilistically, using probability distributions, or deterministically by repeating the assessment with alternative assumptions. Uncertainties that are not quantified should be evaluated qualitatively. Outputs produced by the model are illustrated using results from a simple assessment of fish consumption. More detailed case studies on oily fish and phytosterols are presented in companion papers. The model can be accessed as web-based software at www.qalibra.eu.


Assuntos
Alimentos , Modelos Teóricos , Medição de Risco , Incerteza , União Europeia
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