Résumé
To investigate the effect of placental isoferritin (PLF) on mouse embryo development in vitro, mice 2-cell embryos were co-cultured with human first trimester decidual cells at different concentrations of PLF in vitro. The following changes of the above system were observed under an invert microscope and the number of embryos were recorded and the embryos were classified. The results showed there was no significant difference in the percentage of embryos development to 4-cell, 8-cell and morula (P>0.05). PLF at the doses of 10 and 100 U/mL significantly enhanced more embryos development to the blastocyst and hatching blastocyst (P0.05). It was concluded that PLF at the concentration of 10-100 U/mL had no significant effects on the early development of mice embryos, however, PLF could promote the growth, differentiation, and hatching of preimplantation blastocysts.
Sujets)
Techniques de coculture , Caduques/cytologie , Embryon de mammifère/cytologie , Embryon de mammifère/effets des médicaments et des substances chimiques , Embryon de mammifère/embryologie , Développement embryonnaire/effets des médicaments et des substances chimiques , Ferritines/isolement et purification , Ferritines/pharmacologie , Placenta/composition chimique , Techniques de culture de tissusRésumé
The effect of inhibitors and intermediates of heme synthesis, inhibitor of globin synthesis, and some iron proteins on in vitro iron uptake and haemoglobin synthesis by reticulocytes of iron deficient subjects was investigated in this study. Lead, INH, ALA, mesoprophyrin, ferritin and albumin substantially increased iron uptake by iron deficient reticulocytes, while cycloheximide and glycine depressed it. The results showed that it is possible to stimulate iron uptake and Hb synthesis in iron deficiency by substances other than iron; the most effective and remarkable of them was ferritin.