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  • Title: Enhancement of re-closure capacity by the intra-amniotic injection of human embryonic stem cells in surgically induced spinal open neural tube defects in chick embryos.
    Author: Lee DH, Park S, Kim EY, Kim SK, Chung YN, Cho BK, Lee YJ, Lim J, Wang KC.
    Journal: Neurosci Lett; 2004 Jul 01; 364(2):98-100. PubMed ID: 15196686.
    Abstract:
    To evaluate the re-closure promoting capacity of human embryonic stem (hES) cells injected into the amniotic cavity on spinal open neural tube defects (ONTDs) of chick embryos, neural tubes were opened at Hamburger and Hamilton stage 18 or 19 and the embryos were divided into three groups: a control group (no injection), a vehicle group, and a hES cell group (injection of 20,000 hES cells immediately after neural tube incision). On postoperative days 3, 5, and 7, ONTDs were significantly more re-closed in the hES cell group than in the other two groups. hES cells were present at the area in the process of re-closure, and covered ONTDs, but were not found in the re-closed area, suggesting indirect effects rather than cell replacement on the neural tissue.
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