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    Nat Biotechnol. 2008 Feb;26(2):212-4. Epub 2008 Jan 27.

    Human embryonic stem cell derivation from poor-quality embryos.

    Source

    Division of Newborn Medicine, Brigham & Women's Hospital, Boston, Massachusetts 02115, USA.

    Abstract

    During in vitro fertilization, embryos deemed clinically useless based on poor morphology are typically discarded. Here we demonstrate a statistical correlation between the developmental stage of such poor-quality embryos and the yield of human embryonic stem (hES) cell lines. Early-arrested or highly fragmented embryos only rarely yield cell lines, whereas those that have achieved blastocyst stage are a robust source of normal hES cells.

    PMID:
    18223642
    [PubMed - indexed for MEDLINE]

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