Noun
transthyretin (countable and uncountable, plural transthyretins) (abbreviated TTR)
(biochemistry) a protein found in human blood serum and cerebrospinal fluid that functions as a carrier of the thyroid hormone thyroxine and the retinol-binding protein
Synonym: (dated) prealbumin
Recently the European Medicines Agency approved the use of Tafamidis or Vyndaqel (a kinetic stabilizer of tetrameric transthyretin) for the treatment of transthyretin amyloid diseases. Source: Internet