تأثير زيادة فيتامين A على البنية النسيجية و الخلوية للأقسام الأذن الداخلية عند جنين الفأر الأبيض : الجزء الثاني

الملخص EN

Vitamin A is very important vitamin to the embryonic development and therefore the pregnants women must take it in normal limit because both deficiency and increase cause many malformations.

The results of this study proved that the extra doses of vitamin A (5000UI / or 7500 UI) by pregnant mothers of Albino mice led to the deformation of the inner ear during fetal development.

These deformations appear in the cells and tissues and the portions of the inner ear, we observed decreasing or increasing in the number of cellular layers of the inner ear sections, in addition to fragility of the cells and lose intercellular junctions and the formation of granulation tissue in addition to the absence of some sections of the inner ear when embryos mothers given high doses of vitamin A