The yolk sac is also the first site of hematopoeisis, with embryonic red blood cells and macrophages visible in the yolk sac as early as 2 weeks' gestation. Neutrophils, platelets, and lymphocytes ...

Pig embryo at 33 days. Pig embryos with human heart cells have survived for 21 days. Credit: Daniel Sambraus/Science Photo Library Researchers have reported growing hearts containing human cells ...

Replicating the Amniotic Sac The team at the Crick created a new 3D model – called a post-gastrulation amnioid (PGA) – which closely resembles the human amnion and other supportive tissues ...

New U.S. Embryo Screening Firm Raises Specter of ‘Designer Babies’ Embryos that meet parental desires will be eligible for implanting, and undesirable ones will be discarded.

This is a useful study in the role of CHI3L1 in Kupffer cells, the macrophages of the liver, showing that CHI3L1 alters glucose regulation in obesity. Specifically, Chi3l1 protects glucose-dependent ...

Two independent studies provide comprehensive human embryo reference maps by integrating multiple human embryo single-cell RNA sequencing (scRNA-seq) datasets. These references are instrumental in ...

Knowing how to make custard is a skill you'll never regret learning. Great for every pudding you can think of, and as a base for ice cream. Separated egg yolks can be kept in an airtight container ...