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Pontifical Academy for Life
Prospects for xenotransplantation

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  • PART TWO Anthropological and Ethical Aspects
    • Preliminary issues
      • 11.
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11.

 Such a modification, as already noted, affects the historical dimension of the person, and thus the individual's communicative structure as mediated by his corporeality.

In light of a renewed appreciation of the body and of the symbolic understanding of it that much of contemporary anthropology offers, it should be observed that not all organs of the human body are in equal measure an expression of the unrepeatable identity of the person. There are some which exclusively perform their specific function; others, instead, add to their functionality a strong and personal symbolic element which inevitably depends on the subjectivity of the individual; and others still, such as the encephalon and the gonads, are indissolubly linked with the personal identity of the subject because of their specific function, independently of their symbolic implications. Therefore one must conclude that whereas the transplantation of these last can never be morally legitimate, because of the inevitable objective consequences that they would produce in the recipient or in his descendants,(61) those organs which are seen as being purely functional and those with greater personalized significance must be assessed, case by case, specifically in relation to the symbolic meaning which they take on for each individual person.(62)




61) We do well to specify that, while the encephalon is related to the personal identity of the subject insofar as it is the organ representing the "principal seat of psychological consciousness", and the "deposit" of existential memory, the gonads are likewise related, insofar as they are organs charged with gametogenesis (the production of gametes); they represent, in a manner of speaking, the "transmitter" - by means of procreation - of the subject's personal identity (genetic patrimony) to offspring. For this reason, while an hypothetical encephalon transplant can in no case be considered morally licit, neither can an eventual gonad transplant - if performed for the purpose of supplying the gametogenetic function - be morally acceptable. Different, however, is the case of a gonad transplant performed exclusively for hormonogenetic purposes (that is, to restore a sufficient hormonal function); once the integrity of the subject's personal identity has been ensured, and once the disassociation with procreation has been established, there would be no particular moral reservations. In this regard, see M.P. Faggioni, Il trapianto di gonadi. Storia e attualità, Med. Mor., 1998, 48, 15-46.



62) Cf. Cuer P., Quelques considérations éthiques, notamment sur l'identité lors de xénotrasplantations, Path Biol (Paris) 2000, 48426-428.






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