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 are the Causes of Coffin-Lowry Syndrome? Coffin-Lowry syndrome is caused by a mutation in the RPS6KA3 gene found on the X chromosome. The defective gene results in the defect in a protein, which is involved in several important functions of the body including in the brain.