Link Between Cattle Mutilations
And Mad Cow Prions?


Note - As I have earlier stated, it is my belief cattle mutilations are, in part, involved with tracking the spread of BSE/Mad Cow Prions. Tongues are commonly removed in mutilations. I have also stated that Mad Cow/BSE is essentially the same disease as CWD which is the same disease as CJD/Alzheimers which is the same as GSS, etc. Prion disease is prion disease.
The discovery of prions in cattle tongues should not come as a surprise in light of the known concentration of them in afflicted HUMAN tonsils. The British discovered this years ago and then, much to their dismay, found that over half of reusable childrens' tonsillectomy instruments that were checked for prions in UK hospitals were found to be contaminated with prions AFTER the instruments were sterilized.
And then there was the announced study to begin checking removed tonsils, nationwide, for signs of prion infection. The results of that test were never released...-- Jeff Rense
Mouth's Muscle Could Be A Route For BSE Infection
By Helen Pearson
Tongue meat could carry a risk of infection from mad cow disease, a new report suggests1.
Tongue could contain high levels of the prion protein thought to cause bovine spongiform encephalopathy (BSE) in cattle and variant Creutzfeldt-Jakob disease in humans, say Richard Bessen and his colleagues. Prions injected into hamster brains travelled to the tongue and accumulated to relatively high levels, the team found.
This doesn't prove that cows with BSE have prion-loaded tongues, or that eating these tongues could cause human disease, says Bessen, who works at Creighton University in Omaha, Nebraska. But guidelines on the meat allowed into the food-chain should be re-evaluated, he says.
Cattle spine and brain are barred from meat products in some European countries. In infected animals, these tissues accumulate prions. Tongue is not banned.
There are fears that infected beef is still entering the food-chain. There are also safety concerns over meat from sheep and deer with related prion diseases.
Nerves could carry infectious prions from the brain to the tongue, explains pathologist Jan Fraser of the Institute for Animal Health in Edinburgh, UK. "Whether there's sufficient [infectivity] to cause disease is a moot point."
Mice injected with nerve cells from infected cow tongue remain healthy. "We have no evidence at the moment for infectivity in the tongue or peripheral nerves of BSE cattle," says Fraser. But the new result makes further testing worthwhile, she says.
Tongue tied
In cows, the brain might download prions to the tongue. In humans, prions might enter via the tongue, Bessen's team proposes. Current opinion holds that prions infect people through the stomach.
Prions injected into hamsters' tongues took 1-2 weeks to reach the brain. These animals fell ill in around 80 days - compared with 190 days when infected through the gut.
Prions can enter through small wounds on the tongue. "A lesion, cut or infection could enhance the ability of [an animal or person] to become infected," says Bessen.
"It can presumably propagate the infections pretty rapidly to the brain," says prion researcher Byron Caughey of Rocky Mountain Labs in Hamilton, Montana. "Whether it actually happens I don't know."
References Bartz, J. C. et al. Rapid prion neuroinvasion following tongue infection. Journal of Virology, 77, 583 - 591, (2002). |Article|
© Nature News Service / Macmillan Magazines Ltd 2002
Your Comments Are Always Welcome At!



This Site Served by TheHostPros