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- W4292587815 abstract "Biomedical advances have led to a relaxation of natural selection in the human population in developed countries. In the absence of strong purifying selection, spontaneous and frequently deleterious mutations tend to accumulate in the human genome and gradually increase the genetic load; that is, the frequency of potentially lethal genes in the gene pool. Gradual increase in incidence of many hereditary disorders suggests deleterious impact of the genetic load on human well being. Many complex diseases such as type 1 and 2 diabetes, autism, bipolar disorder, allergies, Alzheimer disease, and some cancers show significantly higher concordance in monozygotic (MZ) twins than in dizygotic twins (DZ) or parent-child pairs, suggesting their etiology is strongly influenced by genetics. Preventing these diseases based on genetic data alone is frequently impossible. We hypothesize that the incidence of complex diseases could be significantly reduced in the future through a strategy based on time-separated twinning. This strategy involves the collection and fertilization of human oocytes followed by several rounds of artificial twinning. If preimplantation genetic screening (PGS) reports no aneuploidy or known Mendelian disorders, one of the MZ siblings would be implanted and the remaining embryos cryoconserved. Once the health of the adult MZ sibling(s) is established, subsequent parenthood with the cryoconserved twins could substantially lower the incidence of hereditary disorders with Mendelian or complex etiology. The proposed method of artificial twinning has the potential to alleviate suffering and reduce the negative social impact induced by dysgenic effects associated with known and unknown genetic factors. Time-separated twinning has the capacity to prevent further accumulation of the genetic load and to provide source of isogenic embryonic stem cells for future regenerative therapies." @default.
- W4292587815 created "2022-08-22" @default.
- W4292587815 creator A5004877455 @default.
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- W4292587815 date "2013-01-18" @default.
- W4292587815 modified "2023-09-24" @default.
- W4292587815 title "Preventing common hereditary disorders through time-separated twinning" @default.
- W4292587815 doi "https://doi.org/10.48550/arxiv.1301.4299" @default.
- W4292587815 hasPublicationYear "2013" @default.
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