| Literature DB >> 578810 |
L V Johnson, P G Calarco, M L Siebert.
Abstract
Alkaline phosphatase (AP) activity has been assayed in frozen sections of preimplantation mouse embryos by an azo-dye cytochemical method. The results indicate that during preimplantation mouse development AP activity is first expressed between the 8- and 16-cell stages and develops in all cells by the late morula stage. During blastocyst formation AP activity is lost or greatly reduced in trophoblast cells while activity is maintained in the inner cell mass.Entities:
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Year: 1977 PMID： 578810
Source DB: PubMed Journal: J Embryol Exp Morphol ISSN： 0022-0752