MYC and medulloblastoma: There were also glucose-derived glutamate m + 3, m + 4 and m + 5 (which are derived from citrate m + 3, m + 4, m + 5 as the products of m + 1, m + 2, m + 3 OAA combining with Acetyl-coA m + 1, m + 2) in normal brain and MYC-amplified medulloblastoma tumors, that represented the products of the TCA after the second turn and third turns.