Eustachian Tube Growth and Development: Anatomy/Function. Protocol Description. This study measures Eustachian tube function and facial growth over time in three groups of children: one with recurrent ear infections, one with chronic middle ear fluid, and one with little past history of otitis media.
Causes of Kartagener syndrome. Kartagener syndrome is caused by a mutation in the DNAI1 gene, which makes a cellular protein required for normal functioning cilia (cilia line the respiratory tract) and sperm motility.
What causes TTR-FAP? Family genetics are the main cause of TTR-FAP. This means that there is a chance that the mutated gene that causes the disease can be inherited from one or both of your biological parents. And, if you carry the genetic mutation, there is a chance that you can pass it on to your children.