NMO Antibodies, Serum

Anti-aquaporin 4 antibodies, also known as NMO antibodies, are autoantibodies that target aquaporin-4 (AQP4), a protein found on the surface of cells in the brain, spinal cord, and optic nerves. Aquaporin-4 plays an important role in regulating water balance in the central nervous system. When these antibodies are present, they indicate that the immune system is mistakenly attacking AQP4, leading to damage to the nervous system.

This autoimmune response is closely associated with neuromyelitis optica spectrum disorder (NMOSD), which includes classic neuromyelitis optica (NMO or Devic’s disease) as well as related conditions affecting the optic nerves and spinal cord. NMO is a rare inflammatory disorder in which the immune system attacks the optic nerves and spinal cord, causing demyelination (damage to the protective myelin sheath of nerve fibers). The disease can affect one optic nerve and the spinal cord either simultaneously or within a few months, resulting in neurological symptoms.

The NMO Antibodies, Serum test detects these antibodies in the blood, supports early diagnosis and management of NMO. Early detection allows doctors to plan appropriate treatment, monitor disease progression, and reduce the risk of relapses and long-term neurological disability. 

The test is recommended for individuals presenting with neurological symptoms such as sudden vision loss, optic neuritis, transverse myelitis (inflammation of the spinal cord), or unexplained neurological episodes. It is also useful for distinguishing NMOSD from other autoimmune and demyelinating conditions, including multiple sclerosis, which may have overlapping symptoms. 

No special preparation is needed for the NMO Antibodies, Serum test. However, be sure to inform the doctor about any medications or supplements being taken, as they may affect the test results. 

Lab test results may vary across different laboratories. Abnormal test results require expert interpretation. Therefore, never try to self-medicate based solely on these results. Always consult a doctor for a proper understanding of the test results.

Please note: This is an outsourced test. The sample for this test is collected by TATA 1MG and processed at a NABL accredited partnered lab.