Draehmpaehl D
Institut für Anatomie, Veterinärmedizinische Fakultät-Standort Mitte-der Freien Universität Berlin.
Berl Munch Tierarztl Wochenschr. 1994 Aug;107(8):263-6.
In ovaries of 31 cows, which were in prooestrus, the diameters of all visible tertiary follicles and their intrafollicular pressure were measured. The pressure increased largely, if the diameter of the follicles was higher than 5 mm. This high intrafollicular pressure reached the filtering pressure of capillaries. So it is possible, that the peripheral portions of the theca interna from the follicles become ischaemic. The following metabolic acidosis activates the collagenolytic enzyme in the follicular wall. It is concluded that these enzymes could be active in the digestion of the follicle wall during ovulation. In that time the high intrafollicular pressure in spite of higher diameter (over 10 mm) slowly decreased.
在31头处于发情前期奶牛的卵巢中，测量了所有可见三级卵泡的直径及其卵泡内压力。如果卵泡直径大于5毫米，压力会大幅升高。这种高卵泡内压力达到了毛细血管的滤过压力。因此，卵泡内膜的周边部分有可能会缺血。随后的代谢性酸中毒会激活卵泡壁中的胶原olytic酶。得出的结论是，这些酶在排卵期间卵泡壁的消化过程中可能是活跃的。在那个时候，尽管直径更大（超过10毫米），高卵泡内压力仍会缓慢下降。
