Online research in philosophy

: Embryonic stem cells, which have the potential to save many lives, must be recovered from aborted fetuses or live embryos. Although tissue from aborted fetuses can be used without moral complicity in the underlying abortion, obtaining stem cells from embryos necessarily kills them, thus raising difficult questions about the use of embryonic human material to save others. This article draws on previous controversies over embryo research and distinctions between intrinsic and symbolic moral status to analyze these issues. It argues that stem cell research with spare embryos produced during infertility treatment, or even embryos created specifically for research or therapeutic purposes, is ethically acceptable and should receive federal funding.

: The transplantation of adult human neural stem cells into prenatal non-humans offers an avenue for studying human neural cell development without direct use of human embryos. However, such experiments raise significant ethical concerns about mixing human and nonhuman materials in ways that could result in the development of human-nonhuman chimeras. This paper examines four arguments against such research, the moral taboo, species integrity, "unnaturalness," and human dignity arguments, and finds the last plausible. It argues that the transfer of human brain or retinal stem cells to nonhuman embryos would not result in the development of human-nonhuman chimeras that denigrate human dignity, provided such stem cells are dissociated. The article provides guidelines that set ethical boundaries for conducting such research that are consonant with the requirements of human dignity.

: Pluripotent human stem cell research may offer new treatments for hundreds of diseases, but opponents of this research argue that such therapy comes attached to a Faustian bargain: cures at the cost of the destruction of many frozen embryos. The National Bioethics Advisory Commission (NBAC), government officials, and many scholars of bioethics, including, in these pages, John Robertson, have not offered an adequate response to ethical objections to stem cell research. Instead of examining the ethical issues involved in sacrificing human embryos for the goal of curing fatal and disabling diseases, they seek to either dismiss the moral concerns of those with objections or to find an "accommodation" with those opposed to stem cell research. An ethical argument can be made that it is justifiable to modify or destroy certain human embryos in the pursuit of cures for dread and lethal diseases. Until this argument is made, the case for stem cell research will rest on political foundations rather than on the ethical foundations that the funding of stem cell research requires.

: Stem cell research that requires the destruction of human embryos is incompatible with Catholic moral principles, and with any ethic that gives serious weight to the moral status of the human embryo. Moreover, because there are promising and morally acceptable alternative approaches to the repair and regeneration of human tissues, and because treatments that rely on destruction of human embryos would be morally offensive to many patients, embryonic stem cell research may play a far less significant role in medical progress than proponents believe.

Stem cell research is very promising. The use of human embryos has been confronted with objections based on ethical and religious positions. The recent production of reprogrammed adult (induced pluripotent) cells does not – in the opinion of scientists – reduce the need to continue human embryonic stem cell research. So the debate continues.Islam always encouraged scientific research, particularly research directed toward finding cures for human disease. Based on the expectation of potential benefits, Islamic teachings permit and support human embryonic stem cell research. The majority of Muslim scholars also support therapeutic cloning. This permissibility is conditional on the use of supernumerary early pre-embryos which are obtained during infertility treatment in vitro fertilization (IVF) clinics. The early pre-embryos are considered in Islamic jurisprudence as worthy of respect but do not have the full sanctity offered to the embryo after implantation in the uterus and especially after ensoulment.In this paper the Islamic positions regarding human embryonic stem cell research and therapeutic cloning are reviewed in some detail, whereas positions in other religious traditions are mentioned only briefly.The status of human embryonic stem cell research and therapeutic cloning in different countries, including the USA and especially in Muslim countries, is discussed.

On 25 April 2002, the German Parliament has passed a strict new law referring to stem cell research. This law took effect on July 1, 2002. The so-called embryonic Stem Cell Act ( Stammzellgesetz — StZG ) permits the import of embryonic stem (ES) cells isolated from surplus IvF-embryos for research reasons. The production itself of ES cells from human blastocysts has been prohibited by the German Embryo Protection Act of 1990, with the exception of the use of ES cells which exist already. The debate on the legitimate use of ES cells escalated, after the main German research funding agency, the Deutsche Forschungsgemeinschaft (DFG), unexpectedly published new guidelines recommending are stricted use of human ES cells for research. Meanwhile, the debate has ethically dividedsociety, political parties, government and church members into a group supporting and a group rejecting ES cell research. The arguments in favour of such a research can be summarized as arguments derived from a new ethics ofhealing calling for a therapeutic imperative, whereas the arguments against can be summarized as arguments violating the fundamental principle of human dignity as they imply the destruction of human embryos. This article willtry to present and evaluate various ethical arguments founded on the latest biological and medical data on the potential use of stem cell technologies. It will finally come to the conclusion that ES cell research is opposed to human dignity, since the procedures of isolating ES cells require the destruction and instrumentalization of human embryos. Human embryos are human beings at a very early stage of their development, fully possessing the ability of completing their development. At this very early stage, human embryos are extremely dependent and fragile, and thus vulnerable corporealities. Vulnerability and human dignity demand the protection of the embryo's corporeal integrity. Hence, this essay will try to propagate research with adult stem(AS) cells, a procedure which does not require the destruction of human embryos; with regard to the necessary plasticity, it should be emphasized that AS cells very much resemble ES cells.

It seems that if abortion is permissible, then stem cell research must be as well: it involves the death of a less significant thing (an embryo rather than a fetus) for a greater good (lives saved rather than nine months of physical imposition avoided). However, I argue in this essay that this natural thought is mistaken. In particular, on the assumption that embryos and fetuses have the full moral status of persons, abortion is permissible but one form of stem cell research is notFthe practice of creating embryos and then destroying them to extract cell..

Can one consistently deny the permissibility of abortion while endorsing the killing of human embryos for the sake of stem cell research? The question is not trivial; for even if one accepts that abortion is prima facie wrong in all cases, there are significant differences with many of the embryos used for stem cell research from those involved in abortion—most prominently, many have been abandoned in vitro, and appear to have no reasonably likely meaningful future. On these grounds one might think to maintain a strong position against abortion but endorse killing human embryos for the sake of stem cell research and its promising benefits. I will argue, however, that these differences are not decisive. Thus, one who accepts a strong view against abortion is committed to the moral impermissibility of killing human embryos for the sake of stem cell research. I do not argue for the moral standing of either abortion or the killing of embryos for stem cell research; I only argue for the relation between the two. Thus the conclusion is relevant to those with a strong view in favor of the permissibility of killing embryos for the sake of research as much as for those who may strongly oppose abortion; neither can consider their position in isolation from the other.

This essay has two purposes. The first is to argue that our moral duties towards human embryos should be assessed in light of the Golden Rule by asking the normative question, “how would I want to be treated if I were an embryo?” Some reject the proposition “I was an embryo” on the basis that embryos should not be recognized as persons. This essay replies to five common arguments denying the personhood of human embryos: (1) that early human embryos lack ontological individuation; (2) that they are members of the species Homo sapiens but not yet human persons; (3) that the argument for personhood commits the “heap argument” fallacy; (4) that since human procreation in nature is inefficient, human embryos cannot be persons; and (5) the “burning building” scenario proves that all arguments for personhood are irrational or inconsistent. The second purpose is to set forth and criticize in light of the normative judgement defended in part one the present legal situation of cryo-preserved embryos in the U.S. The essay ends by proposing legislative reforms to protect ex utero human embryos.

On both sides of the debate on the use of embryos in stem cell research, and in reproductive technologies more generally, rhetoric and symbolic images have been evoked to influence public opinion. Human embryos themselves are described as either “very small human beings” or “small clusters of cells.” The intentions behind the use of these phrases are clear. One description suggests that embryos are already members of our community and share with us a right to life or at least respectful treatment, whereas the other focuses on the differences between embryos and adult human beings with normal capacities, that is, their lack of sentience and of personal identity. The research on stem cells has been nicknamed “Frankenstein science” or presented as “research that could stop Parkinson disease.” Again, one description reminds us of scary science-fiction scenarios where the scientist is guilty of “playing God,” whereas the other description highlights the worth and potential benefits of the research outcomes.