4 resultados para Science--Early works to 1800

em Aston University Research Archive


Relevância:

100.00% 100.00%

Publicador:

Resumo:

DUE TO COPYRIGHT RESTRICTIONS ONLY AVAILABLE FOR CONSULTATION AT ASTON UNIVERSITY LIBRARY AND INFORMATION SERVICES WITH PRIOR ARRANGEMENT

Relevância:

100.00% 100.00%

Publicador:

Resumo:

DUE TO COPYRIGHT RESTRICTIONS ONLY AVAILABLE FOR CONSULTATION AT ASTON UNIVERSITY LIBRARY AND INFORMATION SERVICES WITH PRIOR ARRANGEMENT

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Poor maternal nutrition during pregnancy can alter postnatal phenotype and increase susceptibility to adult cardiovascular and metabolic diseases. However, underlying mechanisms are largely unknown. Here, we show that maternal low protein diet (LPD), fed exclusively during mouse preimplantation development, leads to offspring with increased weight from birth, sustained hypertension, and abnormal anxiety-related behavior, especially in females. These adverse outcomes were interrelated with increased perinatal weight being predictive of later adult overweight and hypertension. Embryo transfer experiments revealed that the increase in perinatal weight was induced within blastocysts responding to preimplantation LPD, independent of subsequent maternal environment during later pregnancy. We further identified the embryo-derived visceral yolk sac endoderm (VYSE) as one mediator of this response. VYSE contributes to fetal growth through endocytosis of maternal proteins, mainly via the multiligand megalin (LRP2) receptor and supply of liberated amino acids. Thus, LPD maintained throughout gestation stimulated VYSE nutrient transport capacity and megalin expression in late pregnancy, with enhanced megalin expression evident even when LPD was limited to the preimplantation period. Our results demonstrate that in a nutrient-restricted environment, the preimplantation embryo activates physiological mechanisms of developmental plasticity to stablize conceptus growth and enhance postnatal fitness. However, activation of such responses may also lead to adult excess growth and cardiovascular and behavioral diseases. © 2008 by the Society for the Study of Reproduction, Inc.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Objective: The debate surrounding the science/practice balance in the teaching of undergraduate pharmacy has been played out in the professional literature for years. The objective of this work was to explore the attitudes of pharmacy undergraduates on the practice-science debate. Setting: The study was undertaken as part of a national study of teaching, learning and assessment methods in United Kingdom (UK) schools of pharmacy. Method: Six focus groups were carried out. The sample was 44 volunteer students from nine UK schools of pharmacy, representing all 4 years of the MPharm programme. Groups were tape recorded and transcribed. Analysis of the transcripts was theme based by topic. Main Outcome Measure: Qualitative data on student attitudes and experiences. Results: Most students thought that there was too strong an emphasis placed on the science components of the course in the early part of their studies. Later in the course they realised that the majority of the science was necessary; it just had not been apparent to them at the time. There were strongly held attitudes across all 4 years that it would be beneficial to include more practice-related material at the beginning of their studies. This would be beneficial for three reasons: to make the course more interesting, to aid in the contextualisation of the science component and to assist the students in any early placement or vacational work. Conclusion: Internationally, changes to the role of the pharmacist from a traditional supply function to a more clinical role has resulted in differing educational needs for the pharmacist of the future. Pharmacy will remain a degree built on a strong scientific background, but students advise that the contextualisation and sequencing of material within the degree could make a considerable improvement to their learning. Consulting students helps us to understand the teaching, learning and assessment experience better by giving insights into ways of improving the delivery. In the case of the UK, there are legislative changes impending which may provide an opportunity to review the balance of practice-and science in the curriculum. © 2006 Springer Science+Business Media B.V.