Viroids and prions article pdf available in proceedings of the national academy of sciences 7917. Prion, enfermedades por priones, glicosilacion, cerebro. Then, in 1982, stanley prusiner, a medical doctor studying scrapie a fatal, degenerative disease in sheep discovered that the disease was caused by proteinaceous infectious particles, or prions. Virus, viroides y priones by kiara carrillo on prezi. Enfermedades causadas por viroides y priones by mariel. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Priones, encefalopatias espongiformes transmisibles, eeb, scrapie. The main difference between virus and prion is that the virus is an infectious particle that contains a nucleic acid molecule covered by a protein core whereas the prion is a simpler infectious particle made up of only proteins. Patogenos subcelulares virus, viroides y priones integrantes.
Describe prions and viroids and their basic properties. Enfermedades causadas por viroides y priones by yanick. At one time, scientists believed that any infectious particle must contain dna or rna. The accumulation of rogue proteins causes the brain tissue to become spongelike, killing brain cells and forming holes in the tissue, leading to brain damage, loss of motor coordination, and dementia see figure 6. Semejanzas y diferencias entres virus, viriones y priones. Tse is a rare degenerative disorder that affects the brain and nervous system. Priones son unas particula infecciosa formada por una proteina denominada prionica. Furthermore, virus can cause a wide array of infections while prions mainly cause neurodegenerative diseases in humans and animals. Quiz by al210691, updated more than 1 year ago 75 0 0 description. Kiara gonzales anel vela valeri caceres lourdes torres jazmin liza forman agregados supramoleculares y son patogenas con. Because proteins are acellular and do not contain dna or rna, prusiners findings were originally met. Microfluidic systems for sweat analysis and neonatal care.
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