Researchers using time-lapse imaging on zebrafish have discovered the exact area in vertebrates where fundamental embryonic tissues create the parent stem cells that make all the adult blood cells in an individual's life span. The finding could help in the development of stem cell treatments for diseases of the blood or bone marrow. "If we could generate healthy hematopoetic [blood] stem cells from patients and transplant them back into their own bone marrow, it would eliminate many complications," the lead researcher said.

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