Assisted reproduction does not show negative side effects in adulthood

Assessing whether those born by assisted reproduction show more negative side effects than those conceived naturally has been extensively studied (see HERE and HERE ), but knowing whether these effects exist in the long term is not well determined. A recent study that looked at...

Three-dimensional models of human embryos generated using human stem cells

The development of anterior-posterior symmetry of the human embryo occurs during pregnancy. Many of the signals that regulate this process have been described in experiments using mice. However, there is no direct molecular evidence of how anterior-posterior symmetry is achieved...