Influence of Nitric Oxide Synthase Inhibitors on Embryo Destruction and Morphological Features in Pre- and Postimplantation Mouse Embryos

Influence of Nitric Oxide Synthase Inhibitors on Embryo Destruction and Morphological Features in... Nitric oxide is an important intraovarian regulatory factor. The periimplantation period is a critical phase in mouse development. Although it was shown that nitric oxide plays an essential role during gestation, its role in the preimplantation period is not yet fully clear. We studied the involvement of nitric oxide in developmental competence (embryonic defects and morphology of pre- and postimplantation embryos) using nitric oxide synthase inhibitors, which suppress all forms of nitric oxide synthase, and female mice, to which the inhibitors had been administered before their mating with intact males. The level of mortality of pre- and postimplantation embryos in females mated to intact males increased soon after the administration of inhibitors. Studies of the morphology of embryos have shown that there was a delay in embryogenesis at the stages of cleavage and gastrulation. The results obtained suggest that nitric oxide is a potent regulator of embryonic differentiation, specifically in pre- and postimplantation mouse embryos. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Influence of Nitric Oxide Synthase Inhibitors on Embryo Destruction and Morphological Features in Pre- and Postimplantation Mouse Embryos

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Publisher
Kluwer Academic Publishers-Plenum Publishers
Copyright
Copyright © 2004 by MAIK “Nauka/Interperiodica”
Subject
Life Sciences; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1023/B:RUDO.0000043820.20030.f3
Publisher site
See Article on Publisher Site

Abstract

Nitric oxide is an important intraovarian regulatory factor. The periimplantation period is a critical phase in mouse development. Although it was shown that nitric oxide plays an essential role during gestation, its role in the preimplantation period is not yet fully clear. We studied the involvement of nitric oxide in developmental competence (embryonic defects and morphology of pre- and postimplantation embryos) using nitric oxide synthase inhibitors, which suppress all forms of nitric oxide synthase, and female mice, to which the inhibitors had been administered before their mating with intact males. The level of mortality of pre- and postimplantation embryos in females mated to intact males increased soon after the administration of inhibitors. Studies of the morphology of embryos have shown that there was a delay in embryogenesis at the stages of cleavage and gastrulation. The results obtained suggest that nitric oxide is a potent regulator of embryonic differentiation, specifically in pre- and postimplantation mouse embryos.

Journal

Russian Journal of Developmental BiologySpringer Journals

Published: Dec 30, 2004

References

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