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Diagrammatic portrayal of the BBB and the iron transport proteins believed to play a role in iron movement into the brain. BBB, blood-brain barrier; CSF, cerebrospinal fluid; DMT1, divalent metal transporter 1; Frt, ferritin; FrtR, ferritin receptor; MTP, metal transport protein or ferroportin; Tf, transferrin; TfR, transferrin receptor. Reproduced with permission from reference 192.
