A review of S. M. Liao's "Rescuing human embryonic stem cell research: The blastocyst transfer method," American Journal of Bioethics 5(6), 2005: 8:16.

Frances Kamm distinguishes between changes or enhancements that are made before a child exists (ex ante changes) and those that are made once a child exists (ex post changes), and she argues that ex ante changes do not show disrespect or, as Michael Sandel would put it, lack of love, for a person, since the person does not yet exist. In this paper, I argue that it is important to distinguish between ex ante enhancements that are morally neutral and those (...) that are morally dubious, and that the latter ones are morally objectionable even if the persons do not yet exist. (shrink)

S. Matthew Liao's paper (2005) exemplifies what I characterize as the third stage in the lifecycle of bioethics, “bioethics as co-PI,” in which bioethics asserts a role in directing the biomedical...

Despite the therapeutic potential of human embryonic stem cells, many people believe that HES cell research should be banned. The reason is that the present method of extracting HES cells involves the destruction of the embryo, which for many is the beginning of a person. This paper examines a number of compromise solutions such as parthenogenesis, the use of defective embryos, genetically creating a “pseudo embryo” that can never form a placenta, and determining embryo death, and argues that none of (...) these proposals are likely to satisfy embryoists, that is, those who regard the embryo as a person. This paper then proposes a method of extracting HES cells, what might be called the Blastocyst Transfer Method, that meets the ethical requirements of embryoists, and it considers some possible concerns regarding this method. It concludes by encouraging future HES cell research to investigate this method. (shrink)

Despite the therapeutic potential of human embryonic stem (HES) cells, many people believe that HES cell research should be banned. The reason is that the present method of extracting HES cells involves the destruction of the embryo, which for many is the beginning of a person. This paper examines a number of compromise solutions such as parthenogenesis, the use of defective embryos, genetically creating a "pseudo embryo" that can never form a placenta, and determining embryo death, and argues that none (...) of these proposals are likely to satisfy embryoists, that is, those who regard the embryo as a person. This paper then proposes a method of extracting HES cells, what might be called the Blastocyst Transfer Method, that meets the ethical requirements of embryoists, and it considers some possible concerns regarding this method. It concludes by encouraging future HES cell research to investigate this method. (shrink)

This article examines a moral problem for the blastocyst transfer method of harvesting stem cells from embryos. Although BTM does not result in the destruction of an embryo, this article suggests that BTM nevertheless faces difficulty because it poses a threat to the autonomy of the embryo.