The amount of a neuroendocrine secretory protein 55 isoform Nesp55 (human) when measured in cerebrospinal fluid. The trait is OBA_2056512 (level of neuroendocrine secretory protein 55 isoform Nesp55 (human) in cerebrospinal fluid). Also known as: cerebrospinal fluid neuroendocrine secretory protein 55 isoform Nesp55 (human) amount.