Human cell lines are well-characterized laboratory cultures of human cells derived from a single source. In recent years, much moral controversy has surrounded human cell lines and biological materials obtained from aborted fetuses and destructive human embryo research. Dignitas personae instructs scientists of good conscience to avoid using biological materials of illicit origin, to distance themselves from evil, and to avoid scandal. The author suggests that the Instruction allows a scientist to delay discontinuing the use of a morally controversial cell line for a reasonable amount of time and allows a citizen of conscience to financially support—in a limited and restricted manner governed by prudence—philanthropic organizations that fund controversial biomedical research programs. National Catholic Bioethics Quarterly 10.2 (Summer 2010): 265–272.

It is important to know as precisely as possible when a human being comes into existence. This can occur in ordinary circumstances after sexual intercourse. It can also occur in a nonsexual manner by various types of cloning and genetic engineering techniques and in naturally occurring monozygotic identical twining in vivo. Many scientists and physicians, in an effort to avoid being accused of abuse of human embryos in their research and in the practice of abortion, have falsified the facts about human conception for many years throughout the world, creating moral confusion and error. This essay is meant to clarify this situation. National Catholic Bioethics Quarterly 10.2 (Summer 2010): 251–256.

This paper explores the concept of ectogenesis in both the partial and the complete forms and argues for the moral permissibility of artificial womb technology in some restricted contexts. The author proposes that artificial wombs could licitly be employed for the purpose of saving the lives of infants born at very young gestational ages either by miscarriage or by delivery induced for very serious medical reasons. The author also proposes that artificial womb technology may be licitly used for the rescue of embryos created through in vitro fertilization and subsequently abandoned by their parents, but the technology would have no ethical application when used electively. National Catholic Bioethics Quarterly 10.3 (Autumn 2010): 515–528.

This paper explores the determination of death as it pertains to ethical decisions about organ and tissue donation. The Church holds that death can be diagnosed on the basis of evidence showing the complete cessation of all brain function and the corresponding loss of integration of the body. On the basis of evidence presented by D. Alan Shewmon and others, influential secular bodies have rejected the integrationist view, arguing instead for a much more liberal view that a loss of spontaneous breathing and loss of consciousness are sufficient for a diagnosis of death; that is, some brain function may continue after death. New laws and guidelines in various countries are based on this mode-of-being view. The author defends the Church’s integrationist view, arguing that loss of all brain function means loss of integration in the intercommunicative sense that pertains to the separation of the life principle, or soul, from the body in death. National Catholic Bioethics Quarterly 10.3 (Autumn 2010): 491–514.

There is controversy in the Catholic medical ethics community surrounding assisted nutrition and hydration (ANH). Recently, the Ethical and Religious Directives for Catholic Health Care Services were amended to make ANH “obligatory.” The persistent vegetative state is cited specifically in the document, and the sentence following its mention states that ANH is “optional” when it cannot be expected to “prolong life” or when it would be “excessively burdensome.” For patients suffering from other medical conditions, such as dementia and frailty, ANH may be excessively burdensome and may not prolong life. For these patients, ANH may be of no real benefit and may even have significant morbidity and mortality. Competent individuals with these conditions can ethically elect to forgo ANH. National Catholic Bioethics Quarterly 10.3 (Autumn 2010): 481–488.