21 Hrs
Source:
وكالة الأنباء القطرية
Source: وكالة الأنباء القطرية
21 Hrsوكالة الأنباء القطرية
Source: وكالة الأنباء القطرية
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Chinese researchers have discovered that blood cell formation begins at very early stages of embryonic development. It occurs within the secretory vesicle derived from the extra-embryonic intermediate ectoderm, contrary to previous beliefs that it originated from the somatic ectoderm. They explained that specialized regions inside the vesicle produce hematopoietic progenitor cells, as well as red blood cells and nucleated cells. This finding helps resolve a scientific debate about the origin of early blood cells and enhances our understanding of hematopoietic development before embryonic formation.
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