PMID: 9173351Mar 1, 1997Paper

The positive effect of pretreatment with serotonin and gangliosides on the development of early mouse embryos after cryopreservation

Ontogenez
N Iu SakharovaG A Buznikov

Abstract

We have demonstrated that viability of preimplantation mouse embryos F1 (C57B1/6 x CBA) after cryoconservation at the stage of four blastomeres improves after pretreatment with serotonin (5 HT, 5 microM) or total gangliosides of bovine brain gangliosides (TG, 3 microM) added to the cultivation medium. After thawing, 64% of embryos preincubated with total brain gangliosides and 49% of embryos preincubated with serotonin developed to the stage of blastocyst during the cultivation in vitro; in the control, no more than 25% of embryos reaches this stage, and all these embryos were abnormal. Possible mechanisms of protective action of these compounds is discussed. We conclude that mouse embryos subjected to freezing-thawing procedure can be used to examine the role of serotonin and gangliosides in the regulatory processes of mammalian preimplantation development.

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