Expanding rings vital for viable embryos

Scientists have discovered a process during mammalian embryonic development that is critical for early embryos to develop into healthy blastocysts.

The black box behind embryonic development

DNA regulation is a critical process in a cell that allows it to fulfill its function. This process is key during pregnancy, when embryonic cells must develop into all cell types needed to form an embryo. An international ...

p53 determines organ size

In studies conducted on the fruit fly, researchers at IRB Barcelona (Spain) headed by ICREA Professor Marco Milan have revealed that organs have the molecular mechanisms to control their proportions. In this process the protein ...

Regulating the rapidly developing fruit fly

From birth, it takes humans almost two decades to reach adulthood; for a fruit fly, it takes only about 10 days. During a fly embryo's initial stages of development, the insect looks different from minute to minute, and its ...

Animal eggs not suitable substitutes to produce stem cells

Since the cloning of Dolly the Sheep over a decade ago, somatic cell nuclear transfer (SCNT) has been considered a promising way to generate human, patient-specific stem cells for therapeutic applications. The shortage of ...

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