منابع مشابه
FDA regulation of stem-cell-based therapies.
In the interest of public safety, the Food and Drug Administration (FDA) has jurisdiction over the production and marketing of any stem-cell–based therapy involving the transplantation of human cells into patients. The FDA’s recently promulgated regulations regarding human cells, tissues, and cellular and tissue-based products1 provide an appropriate regulatory structure for the wide range of s...
متن کاملThe Growing "Stem Cell Clinic" Problem.
T HE RESULTS OF A STUDY BY SCHWARTZ ANDASSOCIates using subretinal transplantation of human embryonic stem cell–derived retinal pigment epithelium cells in patients with Stargardt macular dystrophy and atrophic age-related macular degeneration (AMD) has bolstered hope for using stem cell therapies for retinal diseases. This study reported that transplantation was safe and results in improvement...
متن کاملHematopoietic stem cell expansion: challenges and opportunities.
Attempts to improve hematopoietic reconstitution and engraftment potential of ex vivo-expanded hematopoietic stem and progenitor cells (HSPCs) have been largely unsuccessful due to the inability to generate sufficient stem cell numbers and to excessive differentiation of the starting cell population. Although hematopoietic stem cells (HSCs) will rapidly expand after in vivo transplantation, exp...
متن کامل[Bioethical challenges of stem cell tourism].
Stem cells have drawn extraordinary attention from scientists and the general public due to their potential to generate effective therapies for incurable diseases. At the same time, the production of embryonic stem cells involves a serious ethical issue concerning the destruction of human embryos. Although adult stem cells and induced pluripotential cells do not pose this ethical objection, the...
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Embryonic stem (ES) cells hold great promise for treating degenerative diseases, including diabetes, Parkinson's, Alzheimer's, neural degeneration, and cardiomyopathies. This research is controversial to some because producing ES cells requires destroying embryos, which generally means human embryos. However, some of the surplus human embryos available from in vitro fertilization (IVF) clinics ...
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ژورنال
عنوان ژورنال: Nature
سال: 2010
ISSN: 0028-0836,1476-4687
DOI: 10.1038/466909a