Hummel L, Zimmermann T, Schirrmeister W, Wagner H
Acta Biol Med Ger. 1976;35(10):1311-6.
The in vivo tracer method and in vitro acetate incorporation experiments were used to investigate the metabolism of placental free fatty acids. Analysis of data revealed that free fatty acids pass into the fetus from maternal plasma through a small placental compartment, which accounts for only 5 percent of all of the placental free fatty acids. The turnover time of this compartment is 0.57 min. The rate of placental fatty acid synthesis evaluated by both methods is very small and amounts to 0.003 mumols fatty acids/min/all placentas of one litter.
采用体内示踪法和体外乙酸掺入实验来研究胎盘游离脂肪酸的代谢。数据分析显示，游离脂肪酸通过一个小的胎盘区室从母体血浆进入胎儿体内，该胎盘区室仅占胎盘游离脂肪酸总量的5%。这个区室的周转时间为0.57分钟。通过这两种方法评估的胎盘脂肪酸合成速率非常小，为0.003微摩尔脂肪酸/分钟/一窝所有胎盘。
