THE EFFECT OF DIET ENRICHED WITH PYROPHOSPHATE (E450) ON EXPRESSION OF GENES ENCODING BONE MORPHOGENETIC PROTEIN AND OSTEOCALCIN IN MOUSE EMBRYONIC MANDIBLE TISSUES

OBJECTIVE The aim: Of our study was to measure the mRNA expression of the investigated odontogenesis factors in mandible tissue of mouse embryos (17th day of pregnancy) gestated by females, kept on a E450 rich diet since 30 days before fertilization to gestation. PATIENTS AND METHODS Materials and methods: The effect of food supplements was studied in «Overload phosphates model». Experiments were carried out on white nonlinear outbred mice with mass 25-28g (n=40). The females from the control group were fed with standard rodent food, whereas the experimental females were fed with pyrophosphate-enriched food. The materials, used for the molecular genetic study, were the lower jaws of 17-days old mouse embryos (E-17). RESULTS Results: The investigated BMP2 and osteocalcin genes are expressed at approximately the same level. Pyrophosphate-rich diet does not alter BMP2 gene expression, but it significantly increases the expression of osteocalcin. CONCLUSION Conclusions: The present study is the first one to describe the impact of the pyrophosphate-rich diet on mRNA expression of key osteogenesis regulators - osteocalcin and BMP2.