What is prion?
prion is an inanimate, infectious agent made of incorrect protein. It can be reproduced by normal, healthy proteins wrong with the help of the host biological apparatus as a virus. "Prion" is short for "protein infectious particle."
The idea of an infectious agent lacking nucleic acid for reproduction initially encountered skepticism when the idea was designed in the age of 60, because such a phenomenon has never been observed before. While nucleic acid -based entities are clearly understandable, the reproduction mechanism between prions is still not entirely clear. Prions found in animals only infect the brain, are fatal and incurable. The prores were discovered in mouth, but rather than damaging them, it is theorized that they can play a symbiotic role in the immune system of the sponge. Prion protein was not isolated only in 1982, when Stanley B. Prusiner discovered it and created this term. In 1997 he won the Nobel Prize forphysiology or medicine for his discovery.
One of the first cases of prion -based diseases to be examined was the time scracy , a disease occurring in sheep and goats. This disease has been known since the 18th century, but only up to 60. Scrakie, like most prion -based diseases, is fatal for the animal that infects, causing terrible symptoms before death. The name of the disease comes from the disturbing behavior of infected sheep to scratch their fleece against the rocks. Prion also causes Wal inability, varicose collapse and excessive smacking of lips.
prions are responsible for the disease included in the class known as portable spongiform encephalopathy . (Scientific name for crazy cows disease is beef spoNgiformal encephalopathy .) The disease is thus named because it causes the victim's brain to degenerate into the consistency of a similar fungus.
Most prions are not portable among the species, but cases of people who have infected with a version of the VCJD disease have been reported, with 4 deaths in the UK Armthorpe. News, such as these, led to worldwide terror accompanying a crazy cow. Since the outbreak, several dozen examples of prion infection have been reported in various countries around the world, but many large countries producing livestock remains without disease. The mass industry in the United States has suffered terribly when the news of the disease hit the US coast, although the probability of hinging hits of the infection is incredibly small.