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.
Inherited mutations in the prion protein gene (PRNP) cause the familial form of prion disease. This prion gene provides instructions to your cells regarding how to make the prion protein. In fCJD, the mutations in this gene cause the cells to produce an abnormal form of the prion protein instead of the normal form.ike sCJD, sFI is caused by a misfolded protein, but also like sCJD, what causes that protein to misfold is unknown. Symptoms include difficulty falling asleep (insomnia), difficulty walking, weight loss and excessive tears in the eye. The symptoms rapidly progress to loss of consciousness and death.