Fatal familial insomnia, prion disease

Q.  Fatal familial insomnia (FFI) is caused by
- Published on 22 Feb 16

a. Prions
b. Virus
c. Bacteria
d. Fungus

ANSWER: Prions
 
  • Fatal familial insomnia (FFI) is an extremely rare autosomal dominant inherited prion disease of the brain.
  • Prion diseases are a class of ailments that afflict humans as well as animals. ‘Mad cow disease’, for example, is a prion disease that can affect bovines and can be contracted from eating infected meat.
  • Transmissible spongiform encephalopathies (TSEs), also known as prion diseases, are a group of progressive conditions that affect the brain (encephalopathies) and nervous system of many animals, including humans.
  • Prion is composed entirely of protein material, called PrP (short for prion protein)

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