The ultrastructural study of endometrium in healthy young women in reproductive age is described days 5, 9, 13, 16-17, 22-23, 24-25 and 27-28 of the menstrual cycle.
The results obtained are as follows;
1. The endometrial glandular cell showed relat...
The ultrastructural study of endometrium in healthy young women in reproductive age is described days 5, 9, 13, 16-17, 22-23, 24-25 and 27-28 of the menstrual cycle.
The results obtained are as follows;
1. The endometrial glandular cell showed relatively well-defined patterns; reparative proliferative on day 5, proliferative on day 9 and 13, early secretory on day 16-17, secretory on day 22-23, and regressive after day 24-25.
2. There is a characteristic triad of events occurring around the time of ovulation; the accumulation of glycogen in a subnuclear position, the formation of a canalicular nucleolar channel system and the development of a giant mitochondria-endoplasmic reticulum unit.
3. The endometrial stromal cells were immature on day 5 and underwent differentiation toward a fibroblasts from day 9 to 22-23. After day 24-25, the stromal cell showed maturation to predecidual cells.
4. The stromal granulocytes were found on the endometrium of day 24-25 and they demonstrated a characteristic membrane-bound secretory granules in their cytoplasm.