نتایج جستجو برای: human reproductive cloning
تعداد نتایج: 1773769 فیلتر نتایج به سال:
The President’s Council on Bioethics (Edmund D. Pellegrino, MD, Chairman) will hold its thirtieth meeting, at which it will (1) Discuss a projected ‘‘white paper’’ on the neurological standard for the determination of death; (2) continue the exploratory phase of a potential inquiry into the ‘‘crisis’’ of the healing professions with expert presentations and Council discussions; and (3) continue...
In addition to the moral argument against the use of somatic-cell nuclear transfer for the creation of a child (“reproductive cloning”), there are overwhelming scientific reasons to oppose this practice. In contrast, many believe that the practice of somatic-cell nuclear transfer with the goal of generating an embryonic stem-cell line (sometimes referred to as “therapeutic cloning”) is justifie...
This study was conducted to evaluate the preimplantation embryonic potential of adult somatic cells from an infertile man using an interspecies bioassay for quality control and also to create human embryos via somatic cell nuclear transfer (SCNT). Skin tissue was biopsied from infertile man to obtain fibroblast cells. These cells were fused with both enucleated bovine oocytes obtained commercia...
This document presents arguments that conclude that it is unethical to use somatic cell nuclear transfer (SCNT) for infertility treatment due to concerns about safety; the unknown impact of SCNT on children, families, and society; and the availability of other ethically acceptable means of assisted reproduction. This document replaces the ASRM Ethics Committee report titled, "Human somatic cell...
I believe that there is a personal right, ethically based, to individuality, autonomy, and identity. This right correlates with the right not to be seen primarily as a "means", but is more fundamental. Reproductive cloning crosses a significant boundary in removing the single most important feature of autonomy: the fact that each of us is genetically unique and individual. Our genetic identity ...
The advent of systems biology necessitates the cloning of nearly entire sets of protein-encoding open reading frames (ORFs), or ORFeomes, to allow functional studies of the corresponding proteomes. Here, we describe the generation of a first version of the human ORFeome using a newly improved Gateway recombinational cloning approach. Using the Mammalian Gene Collection (MGC) resource as a start...
Improvements in agronomic traits in all livestock species have been achieved during the past several decades using reproductive technologies. Cloning and transgenesis are the most recent of these technologies, providing geneticists with additional tools to influence population genetics. This Issue Paper describes both of these technologies, addresses their strengths and limitations, and provide...
For centuries a woman who bore a child was clearly the birth mother of that child: mater est quam gestatio demonstrat. However, this relationship is no longer unequivocal. The possibility of embryo transfer or egg donation separates biological motherhood into genetic and gestational components. With the announcement in 1997 of the live birth of the first cloned adult mammal using differentiated...
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