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.
C9ORF72 mutations are by far the most common genetic defect associated with both ALS and FTD, so understanding how the mutation causes disease is tremendously important for efforts to develop therapies to stop or reverse the death of neurons in the brain and spinal cord of patients, said corresponding author Dr. J. Paul Taylor, chair of cell and molecular biology at St. Jude and a Howard Hughes Medical Institute investigator.