Mad Cow in California

A variant of the prion disease that causes bovine spongiform encephalopathy was found in the United States.

By | April 30, 2012

Meneer Zjeroen" > Flickr, Meneer Zjeroen

FLICKR, MENEER ZJEROEN

Last week, as reports of the first case of US mad cow disease in 6 years circulated, researchers discovered that the prion responsible was a rare L-type version, also called an atypical variant, rather than the more common C-type, associated with human transmission of the disease in the United Kingdom. Although there is evidence in primates and mouse models that the L-type is more contagious, it’s not clear whether the same would be true in humans, reported Nature.

Researchers are also looking into how the cow came down with the disease in the first place.  “Long term studies are beginning to look at whether or not it’s capable of transmission orally through feed, but we don’t have the data yet,” Linda Detwiler at Mississippi State University’s College of Veterinary Medicine told Nature.  If it is transmissible through feed, like the C-type, , other cows could be infected.  Alternately, the disease could have started from a gene mutation in the affected cow. But, said Detwiler, “no one knows the origin at this point.”

Add a Comment

Avatar of: You

You

Processing...
Processing...

Sign In with your LabX Media Group Passport to leave a comment

Not a member? Register Now!

LabX Media Group Passport Logo

Popular Now

  1. How Plants Evolved Different Ways to Make Caffeine
  2. Thomson Reuters Predicts Nobelists
    The Nutshell Thomson Reuters Predicts Nobelists

    According to citation statistics, researchers behind programmed cell death pathways and CRISPR/Cas9 are among those in line for Nobel Prizes this year.

  3. Monsanto Buys Rights to CRISPR
    The Nutshell Monsanto Buys Rights to CRISPR

    The US agribusiness secures a global, nonexclusive licensing agreement from the Broad Institute to use the gene-editing technology for agricultural applications.

  4. Reviewing Results-Free Manuscripts
    The Nutshell Reviewing Results-Free Manuscripts

    An open-access journal is trialing a peer-review process in which reviewers do not have access to the results or discussion sections of submitted papers.

RayBiotech