Van Winkle L J, Campione A L, Webster D P
J Exp Zool. 1983 May;226(2):321-4. doi: 10.1002/jez.1402260219.
The uteri of mice were flushed with isotonic mannitol (1) on the day of implantation during normal pregnancy or (2) during delay of implantation. The Na+ concentration in flushings was reduced during diapause but had increased by 65% 24 h after progesterone-treated ovariectomized mice received estrogen injections. The results suggest that the apparent metabolic quiescence of diapausing blastocysts may, in part, be a consequence of lower (Na+) in the uterus during delay of implantation.
在正常妊娠植入当天或植入延迟期间，用等渗甘露醇冲洗小鼠子宫。在滞育期间，冲洗液中的Na⁺浓度降低，但在孕酮处理的去卵巢小鼠接受雌激素注射24小时后，该浓度增加了65%。结果表明，滞育胚泡明显的代谢静止状态，可能部分是植入延迟期间子宫中较低的（Na⁺）所致。
