18 May 2014
University of British Columbia
Published: 18 February 2014
Summary:
The fatal neurodegenerative disease ALS, also known as Lou Gehrig's disease, has been under investigation by researchers, and in particular, how it spreads. New findings suggest that transmission can be blocked, and that misfolded non-mutant SOD1 can be transmitted from region to region in the nervous system, offering a molecular explanation for the progressive nature of the spread. ALS is a disease that affects nerve cells in the brain and the spinal cord. There are approximately 140,000 new cases diagnosed worldwide each year.
Connection:
This connects to our first unit on the Human Body, where we learnt about the Nervous System. We learnt about the motor neurons and how they send the information back to where the sensory neurons received received information. This article connects to the nervous system as it talks about how ALS can break down the motor neurons in the nervous system. In addition to connecting with the nervous system, this article also talks about mutation and how genetic mutation can cause mutation in protein. As a result, this article relates back to our unit on DNA and RNA.
Is this disease prominent in certain kinds/ages of people?
ReplyDeleteIt's usually common in males between the ages of mid 40s to late 60s
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ReplyDeletewhat does the modified SOD1 protein do that is not it's normal function and starts to degenerate the brain? Can they figure out a way to counter the proteins harmful effects now that they know what it is?
ReplyDeleteSOD1 makes an enzyme called superoxide dismutase, which attaches (binds) to molecules of copper and zinc to break down toxic, charged oxygen molecules called superoxide radicals. Superoxide radicals can damage cells if too many accumulate within cells. Superoxide radicals are byproducts of normal cell processes, particularly energy-producing reactions, and must be broken down regularly.
DeleteAs of now, there is no counter to the protein. But as research progresses, scientists most likely be able to discover a way to lessen the harmful effects of SOD1.
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