NR AESO
AU Gonzales,T.S.; Rushing,E.J.
TI Bad news and good news: what the dentist needs to know about transmissible spongiform encephalopathies.
QU Quintessence International 1998 May; 29(5): 319-21
KI Quintessence Int. 2000 Jun;31(6):375. PMID: 11203951
PT journal article; review; review, tutorial
AB Since reports of the "mad cow disease" epidemic in Great Britain erupted in the international press, sensational and intimidating articles about the risk that bovine spongiform encephalopathy and related diseases may pose to humans have appeared. The bad news is that compelling scientific evidence suggests so-called prion disease can and has infected humans, although the overall risk appears to be low. Furthermore, at present, there is no reliable antemortem diagnosis, specific treatment, or vaccine to prevent the disease. The agent thought to be responsible for this unusual class of disease is a rogue protein (called a prion) that, unlike all other agents known to cause infectious disease, contains neither DNA nor RNA. According to a popular hypothesis, normal membrane-associated prion proteins undergo conformational changes that can cause disease. The "bad" prion forms cause holes or a spongy appearance in the brain in all disease variants, hence the generic designation of spongiform encephalopathy. The good news is that risk for exposure to prion disease is exceedingly remote in the dental practice and that current universal infection control procedures are probably sufficient.
ZR 14
MH Animal; Cattle; Creutzfeldt-Jakob Syndrome/pathology; Encephalopathy, Bovine Spongiform/transmission; Human; *Infection Control, Dental; Prion Diseases/*transmission; Prions/chemistry; Protein Conformation; Risk Factors
AD Department of Diagnostic Sciences, Baylor College of Dentistry-TAMUS, Dallas, Texas 75246, USA
SP englisch
PO England