label: cerebral folate deficiency
label_lc: cerebral folate deficiency
description: "Cerebral folate deficiency is defined as a neurological syndrome associated with low CSF 5-methyltetrahydrofolate (5MTHF), the active folate metabolite, in the presence of normal folate metabolism outside the nervous system. Cerebral folate deficiency can result from either disturbed folate transport or from increased folate turnover within the central nervous system."