The amount of a DNA-3-methyladenine glycosylase (human) when measured in cerebrospinal fluid. The trait is level of DNA-3-methyladenine glycosylase (human) in cerebrospinal fluid (OBA_2057582, an Ontology of Biological Attributes identifier). Also known as: cerebrospinal fluid DNA-3-methyladenine glycosylase (human) amount.