vendredi 14 janvier 2011

Mad cow disease: directly to the the brain by smell.

Mad cow disease: directly to the the brain by smell.

Mad cow disease: prions pass respiratory directly to the brain through smell.
It is transmitted by air, which explains some mysteries
It is very worrying conclusion of a study conducted by the University of Zurich.
The infectious agent is transmitted by contaminated surgical instruments, blood transfusions or by eating meat.
By inhaling an aerosol charge of prions into mice, these have all been contaminated!
  • The incubation is slow: 4-5 years for cows, 5 to 30 years for men
    The prognosis is bad: the evolution is to the death in a few months a major achievement of vital functions and complications of bedridden state. This development is so rapid clinical character most important in the differential diagnosis with Alzheimer's disease.
    New variant Creutzfeldt-Jakob disease.
    This would explain the explosion of cases still listed under AD.
    Since 1995 occurred in cases involving younger patients (under 40). Ataxia is early lows more frequent. Evolution is a little slower than in classic disease. Histologic lesions similar to those of bovine spongiform encephalopathy, and a link between the two conditions exist. Consumption of meat from infected cattle could cause disease in humans. Contamination by human products (corneal transplantation, administration of human growth hormone) is possible.
It begins with rapidly changing mental disorders to dementia. Intellectual deterioration is rapid, irreversible and global, with impairment of reasoning ability, trial, memory and symbolic functions.
While these results are a little frightening, according to Professor Adriano Aguzzi. Security measures are recommended more stringent.

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