00:00Scientists think that we're on the verge of being able to functionally cure genetic diseases
00:04like sickle cell.
00:05Here's how.
00:06So these are healthy red blood cells.
00:07But if you happen to have a mutation in a gene for a protein called hemoglobin, it can
00:11turn these cells hard and sticky.
00:14So they clump together and they cause a huge amount of pain and lack of oxygen.
00:17So the most effective treatment up until now has been to give patients other people's
00:21cells that produce healthy hemoglobin.
00:23But that wears off.
00:24But now doctors can edit a patient's own DNA to get them to produce hemoglobin on their
00:29own.
00:30They take blood cells out of the patient, edit the genes in that cell to tell it to produce
00:34a different kind of hemoglobin, and then put the edited cells back in.
00:39This is unbelievable.
00:40If you want to know what else we're using it for, subscribe.
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