Vaping during pregnancy is becoming more common, but its impact on early human development is not well understood. A new ...

By placing the hatched blastocyst onto a tissue culturing dish, we can encourage several different types of cells to grow: colonies of embryonic stem cells from the inner cell mass (A), membrane ...

The fetal membranes consist of the chorion ... A remnant of the yolk sac merges in the forming embryo into the primitive gut. The role of the yolk sac in early gestation is to supply the embryo ...

Young do not need to run risks attendant with foraging themselves. 3. modification of extra-embryonic membranes to form the placenta, providing nutrients and disposing of wastes through the ...

For some animals, the entire process of cellular multiplication, generation of specialized cells, and their organization into an ordered multicellular embryo takes place in the protective environment ...

Amniotic egg appears very early in reptilian evolution. Egg has several special extra-embryonic membranes, which allow it to develop on land independent of water. Just as significant as evolution of ...

Zernicka-Goetz set out to investigate if human embryonic development resembled that of mice. She and her team first tracked cell lineage from the two-cell stage; they injected mRNA for green ...

During the first 72 hours in particular, extracellular vesicles—nanoparticles enclosed in cell membranes—play a significant role in the embryonic development of zebrafish. This is the result ...

Figure 3: Zebrafish embryo with multicolored fluorescence-marked nuclei and cellular membranes; level 8 of the Z stack. The FW4000 software package from Leica Microsystems combines a variety of ...

The Niswander lab investigates novel mouse models of embryonic development with the overarching goal ... cell death (or apoptosis), phospholipid asymmetry in biological membranes, mitochondrial ...