Inner ear most, while in high frequency sounds, the base of the membrane moves most. Interference with or infection of the labyrinth can result in a syndrome of ailments called labyrinthitis. The symptoms of labyrinthitis include temporary nausea, disorientation, vertigo, and dizziness. Labyrinthitis can be caused by viral infections, bacterial infections, or physical blockage of the inner ear. Another condition has come to be known as autoimmune inner ear disease (AIED). It is characterized by idiopathic, rapidly progressive, bilateral sensorineural hearing loss. It is a fairly rare disorder while at the same time, a lack of proper diagnostic testing has meant that
Niemann–Pick disease, SMPD1-associated clotting (platelets). The brain is not affected in Type B and the disease often presents in the pre-teen years. Niemann–Pick disease, SMPD1-associated Niemann–Pick disease, SMPD1-associated refers to two different types of Niemann–Pick disease which are associated with the SMPD1 gene. There are approximately 1,200 cases of NPA and NPB worldwide with the majority of cases being Type B or an intermediate form. Descriptions of type E and type F have been published, but they are not well characterized, and are currently classified under type B. Mutations in the SMPD1 gene cause Niemann–Pick Types A and B. This gene carries instructions