Confidence votes 11. According to Wikipedia, the width of the Atlantic Ocean at its narrowest point is 2,848 kilometers (1,770 mi) between Brazil and Sierra Leone.
What causes PNH? It is not fully understood why people develop PNH. Inside the bone marrow, blood cells are made by stem cells (the seed cells of the marrow). PNH occurs due to a change (or mutation) in a gene in one of the stem cells in the bone marrow. This mutation happens in a gene called PIG-A and the cells made by this stem cell lack certain proteins on their surface making them âweakerâ than normal blood cells.
One of the abnormalities seen in the TD brain is PNH. In normal brain, neurons exist in the cerebral cortex whereas in the brain with TD, some neurons exist in the deep part of the brain as clusters, which are called PNH. The mechanism of PNH formation was largely unknown. *3Ferret.