The gene that encodes transthyretin, a plasma protein consisting of 127 amino acids that binds retinol and thyroxine. Many distinct forms of amyloidosis have been related to different point mutations in TTR.

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    Pelvic inflammatory disease (PID) which can damage the tube’s functioning or leave it partly or completely blocked; Surgery on a Fallopian tube; Surgery in the neighborhood of the Fallopian tube which can leave adhesions (bands of tissue that bind together surfaces); A prior tubal pregnancy; A history of repeated induced abortions; A history of infertility […]

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    A long hollow cylinder. There are many tube-like structures in the human body, such as the auditory tube (Eustachian tube) in the ear.

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    A small tube inserted into the eardrum to keep the middle ear aerated for a prolonged period of time. These ventilating tubes usually remain in place for 6 months to several years. Eventually, they move out of the eardrum (extrude) and fall out into the ear canal. Also called tympanostomy tubes.

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