They found that the transgenic mice were susceptible to classical and atypical Bovine Spongiform
Encephalopathy prions, and also to mouse - derived Scrapie prions.
Not exact matches
Mad cow is the common name for bovine spongiform
encephalopathy (BSE), a fatal disease caused by abnormal proteins (
prions) in the brain and nervous system.
Degenerative brain diseases like mad cow disease (officially known as bovine spongiform
encephalopathy, or BSE), scrapie in sheep, and vCJD in humans are thought to be caused by
prions, misfolded versions of a normal cellular protein called PrPC.
Bovine spongiform
encephalopathy (BSE) is caused by a misfolded protein — a
prion — which accumulates in brain tissue, causing death.
Overhyped microbes include anthrax (famous for the U.S. mail attacks in 2000), the Ebola and Marburg viruses (which can cause dramatic bleeding and high fever in their victims), and the
prion agent of mad cow disease (otherwise known as bovine spongiform
encephalopathy, or BSE), which kills people by making their nervous systems degenerate.
Other
prion diseases include scrapie in sheep; chronic wasting disease in deer, elk and moose; and bovine spongiform
encephalopathy (BSE), or mad cow disease, in cattle.
The researchers then exposed these transgenic mice to
prion isolates collected from sick animals, including classical and atypical strains of Bovine Spongiform
Encephalopathy (i.e., mad cow disease), sheep Scrapie, and deer Chronic Wasting Disease.
The cow's brain is the organ most likely to harbor
prions, the source of bovine spongiform
encephalopathy.
Rabbits have long been considered immune to
prion disease, but recently scientists have shown that they can — under certain circumstances — get transmissible spongiform
encephalopathy (or TSE, the scientific term for the fatal brain disease caused by
prions).
Other
prion diseases include scrapie in sheep, chronic wasting disease in deer, elk and moose, and bovine spongiform
encephalopathy in cattle.
Infamous for causing fatal degenerative brain diseases, such as bovine spongiform
encephalopathy, known more commonly as «mad cow disease,» Creutzfeldt - Jakob disease, and scrapie,
prions are proteins that have the ability to self - perpetuate when they assume a particular conformation.
Scientists first discovered
prions in the 1980s as the agents behind fatal brain disorders known as transmissible spongiform
encephalopathies.
It cause animal brains to turn into a spongy mess in scrapie, a disease of sheep, and in bovine spongiform
encephalopathy (BSE or «mad cow disease»), as well as in human
prion diseases such as CJD.
Transmissible spongiform
encephalopathies (TSEs, also known as
prion diseases) are a group of progressive conditions that affect the brain and nervous system of humans and animals and are transmitted by
prions.
The most well - known
prion diseases include bovine spongiform
encephalopathy (often called «mad cow disease») and Creutzfeldt - Jakob disease in humans.
What is known is that
prions that become misshapen, through some unknown process, can result in BSE (bovine spongiform
encephalopathy)-- mad cow disease — and its equivalents in other animals.
Dissociation of
prion protein amyloid seeding from transmission of a spongiform
encephalopathy
Prions are the «infectious proteins» behind diseases such as bovine spongiform
encephalopathy.
Researchers are reporting what they say is the most compelling evidence, to date, that the infectious proteins called
prions that cause bovine spongiform
encephalopathy (BSE), or «mad cow» disease, have infected humans, causing fatal brain degeneration.
Prior to development of transgenic mice harboring bovine
prion protein genes, the only sure - proof way to determine if a live cow has bovine spongiform
encephalopathy (BSE) is to wait out its lengthy incubation period — a minimum of four years.
The Director of the UC San Francisco Institute, Stanley B. Prusiner, MD, UCSF professor of neurology, biochemistry and biophysics, won the Nobel Prize in Physiology or Medicine in 1997 for discovering that the neurodegenerative diseases known as spongiform
encephalopathies were caused by
prions.2 Prusiner and Stephen A. DeArmond, MD, PhD, UCSF professor of pathology and chief of the Division of Neuropathology, were the senior authors of the study.
Bovine Spongiform
Encephalopathy (BSE), a
prion disease that occurs in cattle, is the cause of variant Creutzfeldt - Jakob disease (vCJD) in humans.
The new finding offers direct, physical evidence supporting protein - based inheritance, thus strengthening the «
prion hypothesis» of the cause of neurodegenerative diseases in mammals, such as sheep scrapie, mad cow disease (or bovine spongiform
encephalopathy) and the kuru disease of the Papua New Guinea tribes.
Although
prions are infamous for causing Creutzfeld - Jakob disease, fatal familial insomnia, and bovine spongiform
encephalopathy, commonly known as mad cow's disease, the present study indicates that
prions identified in yeast, and possibly in plants, and other organisms may be beneficial.
When highly reactive proteins such as
prions, amyloid - beta, or tau are too sticky, they can clump into aggregates that kill cells and cause diseases such as Alzheimer's and
encephalopathy.
A rare disorder called Feline Spongiform
Encephalopathy (FSE), the feline analog of BSE
prion disease in cattle, may resemble senility in much younger cats which have eaten BSE infected feeds.