The amount of a aldo-keto reductase family 1 member C1 (human) when measured in cerebrospinal fluid. The trait is level of aldo-keto reductase family 1 member C1 (human) in cerebrospinal fluid (OBA_2058497, an Ontology of Biological Attributes entry). Also known as: cerebrospinal fluid aldo-keto reductase family 1 member C1 (human) amount.