Georgieva R, Kovachev K
Vet Med Nauki. 1986;23(10):54-64.
The studies were carried out with both nonpregnant sows aged 1-2 years and pregnant sows from the 30th to the 40th day and on the 60th, 90th, and 100th day of gestation. Three types of cells were found in the epithelium covering the uterus of nonpregnant sows--with kinocilia and microvilli at the apical pole, with microvilli only, and with no microvilli and kinocilia. During pregnancy the ultrastructure of the epithelium were subjected to essential changes which consisted chiefly in increasing the compactness of microvilli, the amount of lysosomes at the apical part, and the basal deposition of fatty globules in some of the cells. The basal membrane on which the epithelial cells lay became considerably thicker. The draining lymph nodes showed a clear trend toward increasing the number of lymphocytes and cells of the plasmatic order. The ultrastructure of the plasmatic cells and lymphocytes spoke of enhanced processes of synthesis.
这些研究是在1至2岁的未怀孕母猪以及妊娠第30至40天、第60天、第90天和第100天的怀孕母猪身上进行的。在未怀孕母猪子宫的上皮中发现了三种类型的细胞——顶端有动纤毛和微绒毛的、只有微绒毛的以及没有微绒毛和动纤毛的。在怀孕期间，上皮的超微结构发生了本质变化，主要表现为微绒毛致密性增加、顶端部分溶酶体数量增多以及一些细胞中脂肪球的基底沉积。上皮细胞所附着的基底膜明显增厚。引流淋巴结显示出淋巴细胞和浆细胞数量增加的明显趋势。浆细胞和淋巴细胞的超微结构表明合成过程增强。
