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1.
Artigo em Inglês | MEDLINE | ID: mdl-22784192

RESUMO

Heated plant foods may contain compounds with adverse health effects (e.g. acrylamide). On the other hand, health-promoting compounds (e.g. antioxidants) have also been identified in such foods. Therefore, a baking experiment with biscuits was carried out to study the potential impact of both acrylamide and antioxidants in that food. Two different wheat flour types - wholemeal (WMF) and white flour type 550 (T550; 0.55% mineral content) - as well as recipe (fat and leavening agent) and thermal input (temperature × time) were changed. Furthermore, the effect of an enzymatic asparagine hydrolysation was tested. Antioxidants were determined with two independent procedures ABTS - (2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonate)) and FRAP-assay (ferric reducing ability of plasma). WMF samples resulted in an unchanged acrylamide level, but in a significantly higher antioxidant concentration when compared with T550 samples (149 and 141 µg kg(-1) acrylamide and 9.1 and 5.1 mmol TE kg(-1) FW ABTS for WMF and T550, respectively). A reduced fat content yielded in an increased volume. Raising agents had no effect on acrylamide levels, but antioxidants were higher in samples with sodium bicarbonate (SBC) than with ammonium bicarbonate (ABC). Thermal input (temperature × time; 150°C × 25 min to 240°C × 9 min) indicated an exponential acrylamide increase especially at higher temperatures (from 75 to 236 µg kg(-1)), whereas antioxidant increase was linear (from 7.0 to 7.7 mmol TE kg(-1) FW, ABTS). FRAP and ABTS values were correlated on a low level, whereas acrylamide content of biscuits was correlated with FRAP and lightness (R (2 )= 0.62 and 0.47, and 0.71 and 0.85 for WMF and T550, respectively). The enzyme asparaginase reduced acrylamide formation by about 50% for both raising agents (SBC and ABC, respectively), whereas antioxidant levels were not affected. An evaluation of recipe variants with low acrylamide and high antioxidants indicated the advantage of wholemeal biscuits.


Assuntos
Acrilamida/análise , Antioxidantes/análise , Pão/análise , Carcinógenos/análise , Contaminação de Alimentos , Manipulação de Alimentos , Acrilamida/química , Bicarbonatos/química , Carcinógenos/química , Cor , Gorduras na Dieta/análise , Fibras na Dieta/análise , Farinha/análise , Contaminação de Alimentos/prevenção & controle , Alemanha , Temperatura Alta/efeitos adversos , Hidrólise , Bicarbonato de Sódio/química , Fatores de Tempo
2.
J Med Ethics ; 34(5): 332-5, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18448710

RESUMO

BACKGROUND: Although fair distribution of healthcare services for older patients is an important challenge, qualitative research exploring clinicians' considerations in clinical prioritisation within this field is scarce. OBJECTIVES: To explore how clinicians understand their professional role in clinical prioritisations in healthcare services for old patients. DESIGN: A semi-structured interview-guide was employed to interview 45 clinicians working with older patients. The interviews were analysed qualitatively using hermeneutical content analysis. PARTICIPANTS: 20 physicians and 25 nurses working in public hospitals and nursing homes in different parts of Norway. RESULTS AND INTERPRETATIONS: The clinicians struggle with not being able to attend to the comprehensive needs of older patients, and being unfaithful to professional ideals and expectations. There is a tendency towards lowering the standards and narrowing the role of the clinician. This is done in order to secure the vital needs of the patient, but is at the expense of good practice and holistic role modelling. Increased specialisation, advances and increase in medical interventions, economical incentives, organisational structures, and biomedical paradigms, may all contribute to a narrowing of the clinicians' role. CONCLUSION: Distributing healthcare services in a fair way is generally not described as integral to the clinicians' role in clinical prioritisations. If considerations of justice are not included in clinicians' role, it is likely that others will shape major parts of their roles and responsibilities in clinical prioritisations. Fair distribution of healthcare services for older patients is possible only if clinicians accept responsibility in these questions.


Assuntos
Atitude do Pessoal de Saúde , Alocação de Recursos para a Atenção à Saúde/ética , Serviços de Saúde para Idosos/provisão & distribuição , Papel Profissional/psicologia , Adulto , Idoso , Feminino , Serviços de Saúde para Idosos/ética , Serviços de Saúde para Idosos/normas , Humanos , Entrevistas como Assunto , Masculino , Corpo Clínico , Pessoa de Meia-Idade , Noruega , Recursos Humanos de Enfermagem , Relações Profissional-Paciente/ética , Pesquisa Qualitativa
3.
J Med Ethics ; 34(4): 230-5, 2008 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-18375671

RESUMO

BACKGROUND: A fair distribution of healthcare services for older patients is an important challenge, but qualitative research exploring clinicians' consideration in daily clinical prioritisation in healthcare services for the aged is scarce. OBJECTIVES: To explore what kind of criteria, values, and other relevant considerations are important in clinical prioritisations in healthcare services for older patients. DESIGN: A semi-structured interview-guide was used to interview 45 clinicians working with older patients. The interviews were analysed qualitatively using hermeneutical content analysis and template organising style. PARTICIPANTS: 20 physicians and 25 nurses working in public hospitals and nursing homes in different parts of Norway. RESULTS AND INTERPRETATIONS: Important dilemmas relate to under-provision of community care and comprehensive approaches, and over-utilisation of certain specialised services. Overt ageism is generally not reported, but the healthcare services for the aged seem to be inadequate due to more subtle processes, for example, dominating considerations and ideals and operating conditions that do not pay sufficient attention to older patients' needs and considerations of justice. Clinical prioritisations are described as being dominated by adapting traditional biomedical approaches to the operating conditions. Many of the clinicians indicate that there is a potential for improving end of life decisions and for reducing exaggerated use of life-prolonging treatment and hospitalisations. CONCLUSION: The interviews in this study indicate that considerations of justice and patients' perspectives should be given more attention to strike a balance between specialised medical approaches and more general and comprehensive approaches in healthcare services for older patients.


Assuntos
Atitude do Pessoal de Saúde , Enfermagem Geriátrica , Geriatria , Alocação de Recursos para a Atenção à Saúde/ética , Cuidados Paliativos/psicologia , Relações Profissional-Paciente , Assistência Terminal/psicologia , Idoso , Humanos , Noruega , Cuidados Paliativos/ética , Direitos do Paciente/ética , Pesquisa Qualitativa , Qualidade da Assistência à Saúde , Assistência Terminal/ética
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