X‐linked creatine deficiency syndrome: A novel mutation in creatine transporter gene <i>SLC6A8</i>

Abstract

Among creatine deficiency syndromes, an X-linked condition related to a defective creatine transport into the central nervous system has been described recently. Hallmarks of the disease are the absence of a creatine signal at brain spectroscopy, increased creatine levels in blood and urine, ineffectiveness of oral supplementation, and a mutation in the SLC6A8 (Online Mendelian Inheritance in Man [OMIM] 300036) creatine transporter gene. We report on a patient in whom a novel mutation (1221-1223delTTC) was identified.