Während der größte Teil der Bevölkerung die kieferorthopädische Therapie, also die Veränderung der Zahn- bzw. Kieferstellung, als eine Behandlung betrachtet, die vor allem auf eine Verbesserung des Erscheinungsbildes zielt, sehen der kieferorthopädische und zahnärztliche Berufsstand sowie auch private und öffentliche Kostenträger in bestimmten Abweichungen von Zahn- oder Kieferstellungen eine Gefährdung der oralen Gesundheit und der Funktionsfähigkeit des Gebisses. Letztere Auffassung bestimmt das ärztliche Handeln in der Kieferorthopädie und begründet auch die Übernahme zumindest bestimmter Leistungen durch die gesetzlichen Krankenkassen. Anhand aktueller (...) wissenschaftlicher Erkenntnisse lassen sich jedoch in vielen Fällen keine (akuten oder potentiellen) gesundheitlichen oder essentiellen funktionellen Beeinträchtigungen und Risiken abweichender Zahnstellungen nachweisen. Ziel dieses Aufsatzes ist es, diesem Widerspruch nachzugehen. Im Folgenden werden wir aufzeigen, welche Faktoren die Anbieter kieferorthopädischer Leistungen beeinflussen, welches die entscheidenden Gründe und Grundlagen für die Behandlung sind und an welchen Kriterien sich die Leistungsübernahme durch die Krankenkassen orientiert. Dabei wird deutlich werden, dass die formalen Kriterien von Behandlung und Kostenübernahme, die tatsächliche Behandlungs- und Kostenerstattungspraxis, die Erwartungen derjenigen, die Behandlungsleistungen in Anspruch nehmen und der aktuelle Stand der Forschung zu erwartbaren Funktionsbeeinträchtigungen durch Zahnstellungsvariationen nicht zwanglos zu vereinbaren sind. Erforderlich erscheint ein interdisziplinärer normativer Diskurs über die Frage, wie die diagnostizierten Spannungen aufzulösen wären. Als Anregung für einen solchen Diskurs werden wir im Ausblick alternative Lösungsstrategien vorstellen. (shrink)

A biochemical pathway is a sequence of chemical reactions in a biological organism. Such pathways specify mechanisms that explain how cells carry out their major functions by means of molecules and reactions that produce regular changes. Many diseases can be explained by defects in pathways, and new treatments often involve finding drugs that correct those defects. This paper presents explanation schemas and treatment strategies that characterize how thinking about pathways contributes to biomedical discovery. It discusses the significance of pathways for (...) understanding the nature of diseases, explanations, and theories. (shrink)

The gulf between Christian and secular bioethics has far-reaching implications for public policy, healthcare organizations, clinicians, and patients and their families. There also are significant differences among various Christian approaches to bioethics. Differences and similarities between Christian and secular bioethics as well as among Christian approaches to bioethics are evident across three domains explored in this issue of Christian Bioethics. The first concerns different approaches to or methods for resolving ethical questions. The second concerns the ways in which understandings of (...) health and disease and human anthropology shape our judgments about what we may do in the pursuit of health or in response to disease. The third concerns how our perceptions of and regard for others affect judgments of moral worth and can influence healthcare decision-making. (shrink)

Aging is an elusive property of life, and many important questions about aging depend on its definition. This article proposes to draw a definition from the scientific literature on aging. First, a broad review reveals five features commonly used to define aging: structural damage, functional decline, depletion, typical phenotypic changes or their cause, and increasing probability of death. Anything that can be called ‘aging’ must present one of these features. Then, although many conditions are not consensual instances of aging, aging (...) is consensually described as a process of loss characterized by a rate and resulting from the counteraction of protective mechanisms against mechanisms that limit lifespan. Beyond such an abstract definition, no one has yet succeeded in defining aging by a specific mechanism of aging because of an explanatory gap between such a mechanism and lifespan, a consensual explanandum of a theory of aging. By contrast, a sound theoretical definition can be obtained by revisiting the evolutionary theory of aging. Based on this theory, aging evolves thanks to the impossibility that natural selection eliminates late traits that are neutral mainly due to decreasing selective pressure. Yet, the results of physiological research suggest that this theory should be revised to also account for the small number of different aging pathways and for the existence of mechanisms counteracting these pathways, that must, on the contrary, have been selected. A synthetic, but temporary definition of aging can finally be proposed. (shrink)

The aim of the paper is to give an ontologically informed account of disease that can aid in the construction of disease ontologies. The paper begins by distinguishing cases of diseases from what are purely structural abnormalities, referred to as ‘disorders’. The paper then presents a causal model apt for the understanding of disease that distinguishes diseases from both their causes and their potential effects. The analysis of disease defended treats disease in terms of distortions of standard cellular network processes, (...) where those distortions are incapable of self remedy and produce biologically disadvantageous symptoms. (shrink)

This is the third in a series of five papers on the role, remit and function of research ethics committees which are intended to provide for REC members a broad understanding of the most important issues in research ethics and governance. This paper examines the role of ethics committees in balancing the social value of the research it reviews against the risks it imposes on those who take part. The ethics committee's role in assessing the social value of research goes (...) well beyond checking its scientific validity and this assessment may affect the risks ethics committees are prepared to ask of subjects not only for their own potential personal interests but importantly and inevitably in the name of science. However, their function is importantly restricted by the wider regulatory and governance environment in which they work. (shrink)

Ageing is often deemed bad for people and something that ought to be eliminated. An important aspect of this normative aspect of ageing is whether ageing, i.e., senescence, is a disease. In this essay, I defend a theory of disease that concludes that ageing is not a disease, based on an account of natural function. I also criticize other arguments that lead to the same conclusion. It is important to be clear about valid reasons in this debate, since the failure (...) of bad analyses is exploited by proponents of the view that ageing is indeed a disease. Finally, I argue that there could be other reasons for attempting to eradicate senescence, which have to do with an evaluative assessment of ageing in relation to the good life. I touch on some reasons why ageing might be good for people and conclude that we cannot justify generalized statements in this regard. (shrink)

Staggering advances in biotechnology within the past decade have given rise to pharmacological, surgical and prosthetic techniques capable of enhancing human functioning rather than merely treating or preventing disease. Bioenhancement technologies range from nootropics capable of enhancing cognitive abilities to distraction osteogenesis, a surgical technique capable of increasing height through limb lengthening. This paper examines whether the use of bioenhancements falls inside or outside the proper boundaries of healthcare, and if so, whether clinicians have professional responsibilities to administer bioenhancements to (...) patients. After explicating two theoretical approaches to the concept of health, one objectivist and the other constructivist, I contend that clinicians' corresponding professional responsibilities hinge on which philosophical account of health is endorsed, and illustrate how the lack of analytic clarity with respect to this concept can lead to defective positions on the place of bioenhancements in healthcare. With this conceptual framework in place, an account of health as a cluster concept that incorporates both constructivist and objectivist components is developed and defended. (shrink)