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Scientists have identified the biochemical signals that control the emergence of the body pattern in the primate embryo. This will guide work to understand birth defects and pregnancy loss in humans.

The study also provides a crucial reference for foetal tissue generation in the lab — such tissue is in short supply but is needed for drug screening and studies into stem cell-based treatments to regenerate body tissues in diseases like Parkinson’s, for example.

Embryos develop from a clump of cells into highly organised structures. However, until now the signals orchestrating this transformation have remained hidden from observation inside the womb.

Measuring gene activity in three dimensions, researchers have generated molecular maps of the second week of gestation as it has never been seen before. Their work is published today in the journal Nature.

“This work will provide a definitive laboratory reference for future studies of early embryo development, order ventolin uk and the embryonic origins of disease,” said Dr Thorsten Boroviak in the University of Cambridge’s Department of Physiology, Development and Neuroscience and senior author of the study.

The second week of gestation is one of the most mysterious, yet critical, stages of embryo development. Failure of development during this time is one of the major causes of early pregnancy loss and birth defects.

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