Kronus, Star, Idaho, offers the Aquaporin-4 Autoantibody (AQP4Ab) ELISA  assay, designed for the accurate determination of autoantibodies to aquaporin-4 (AQP4) in human serum. The AQP4Ab ELISA assay may be useful as an aid in the diagnosis of neuromyelitis optica and neuromyelitis optica spectrum disorders. The AQP4Ab ELISA assay is not to be used alone, and is to be used in conjunction with other clinical, laboratory, and radiological (e.g., MRI) findings. For prescription in vitro diagnostic use only. For more information, visit AACC booth 1548 or Kronus.