2018年2月22日 · The hemochorial placenta is a prominent feature in primate and rodent development. This manuscript provides an overview of the basics of hemochorial placental development and function, provides perspectives on major discoveries that have shaped placental research, and thoughts on strategies for future investigation.

(3) Hemochorial type: this type is the most invasive placenta. All maternal tissue layers disappear through erosion, leading to direct connection between the chorion and maternal blood. There are hemomonochorial (primates), hemodichorial (rabbits), and hemotrichorial (rats and mice) placentas, with one, two and three trophoblast layers ...

Human pregnancy relies on hemochorial placentation, including implantation of the blastocyst and deep invasion of fetal trophoblast cells into maternal uterine blood vessels, enabling direct contact of maternal blood with placental villi.

2014年3月15日 · The defining feature of the hemochorial placenta is that trophoblast cells and not endothelial cells line the maternal vasculature within the placenta, starting at the level of spiral arteries for incoming blood and up to the point when nutrient- and oxygen-depleted blood leaves the placenta to enter into the uterine veins.

2021年10月20日 · Single-cell placenta research has advanced understanding of tissue-resident stem cells and molecules that are poised to support maternal–fetal communication and nutrient transport. Herein, we provide context for these recent findings by reviewing placental anatomy and cell populations, and discuss recent scRNA-seq mouse placenta findings.

2025年1月13日 · Hemochorial placentation is a unique reproductive adaptation found primarily in primates and rodents. This type of placenta allows for direct contact between maternal blood and fetal chorion. As a result, it plays a crucial role in nutrient …

2022年1月1日 · Placentae can be classified into three types based on the number of intervening layers separating trophoblast cells from maternal blood: epitheliochorial, endotheliochorial, and hemochorial. This chapter will describe hemochorial placentation and provide strategies and challenges for its investigation.

2018年2月22日 · Placentation is a reproductive adaptation that permits fetal growth and development within the protected confines of the female reproductive tract. Through this important role, the placenta also...

…for possible pregnancy, forming a hemochorial placenta (with intimate contact between maternal and fetal bloodstreams) if pregnancy occurs and requiring it to be shed, in menstruation, if there is no fertilization. Strepsirrhines have no uterine preparation, no menstruation, and a much-less-intimate epitheliochorial placenta.

2018年7月1日 · The hemochorial placenta is a prominent feature in primate and rodent development. This manuscript provides an overview of the basics of hemochorial placental development and function, provides perspectives on major discoveries that have shaped placental research, and thoughts on strategies for future investigation.