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正常胚胎和胎儿的发育有赖于适当的母体胎盘血流。曾报道在麻醉鼠暂时完全限制子宫循环将引起胎鼠死亡、生长延缓和畸形。又报道某些形式的贫血可引起母体的胎盘增生。本文试图阐明,随母体失血引起的子宫血流下降与失血对胚胎发育和胎盘重量影响之间的关系。用50只未在育过的 Wistar 种大白鼠,平均体重204克。保持于环境温度19℃,相对湿度60%,光照14小时。交配过夜后,次晨阴道涂片发现精
The development of normal embryos and fetuses depends on proper maternal placental blood flow. It has been reported that temporarily completely limiting uterine circulation in anesthetized mice will cause fetal rat death, growth retardation and deformity. It is also reported that some forms of anemia can cause maternal placental hyperplasia. This article attempts to elucidate the relationship between declining uterine blood flow and blood loss on embryonic development and placental weight associated with maternal blood loss. With an average of 204 g, 50 unwatted Wistar rats were used. Maintained at an ambient temperature of 19 ° C, relative humidity of 60%, light for 14 hours. After mating overnight, the next morning vaginal smear found fine