No small matter for some: practitioners' views on the moral status and treatment of human embryos

In this paper, we discuss findings from two studies designed to access and analyse the beliefs, attitudes, and behaviours of health-care professionals and scientists working in morally contested fields of biomedicine that involve the embryo. We seek to support the view that the embryo typically 'matters' to the people we interviewed and whose work we observed, even though it is impossible for them to agree in terms of why that is, and even though their work is of the type to which the moral guardians of the embryo object. In the first part of this paper, we touch on the policy and legal position in relation to embryos, noting Margot Brazier's account of the development of the relevant regulation in the UK and the importance of her claim that the embryo is widely thought to have an important symbolic value. We then turn to explore some of the views, attitudes, and work practices of those whose work involves the embryo, whether that be in relation to fertility treatment services, including IVF and PGD, or research that uses embryos. Our discussion shows the extent to which the embryo typically matters, in various ways, to those working in these fields.     

Histological assessment of gestational age in human embryos and fetuses

A light microscopic study performed on 760 human fetuses allows us to define several stages in their visceral development and to relate these to gestational age. The histological examination of most viscera, such as the central nervous system, is useless when the tissue preservation is poor. Nevertheless, three organs may still be studied in macerated fetuses: the lungs (where different glandular, canalar, and alveolar stages of development are evident), the kidneys (where the respective numbers of rows of primitive glomeruli and of generations of mature glomeruli vary after week 22), and the adrenal glands (where neuroblastic nests are normally found between weeks 7 and 26 of gestation). It is important to compare the degree of histological maturation with the clinical, macroscopic, and radiologic data in order to define the profile of maturation proper to each human fetus.     

The legal status of the fetus: an international review

The article examines the way that courts and legislatures in the United Kingdom, the United States of America, Canada and Australia have answered questions regarding the legal status of a fetus. These questions have arisen in a variety of legal situations: the article deals with succession, criminal, child protection and negligence law. The conclusion offered is that a fetus has a value and an existence that the law should recognise. This does not mean, however, that in all circumstances the law should protect the interests of the fetus. Law-makers will respond differently to claims made on behalf of a fetus, depending on the context. The fetus does not have a uniform value or character in the eyes of the law. The law makes choices as to the situations in which it will take account of actual or threatened antenatal harm.