“Foiling Chemical Event May Combat Brain Breakdown”

This post is about an interesting article on preventing misfolded protein accumulations (which occurs in AD, PD, and many related diseases), protecting an enzyme (called called protein disulphide isomerase), and stopping a chemical (nitric oxide) from wreaking havoc in the brain.

The Bloomberg News article talks about a study just published in the journal Nature. The aarticle notes:

“While previous studies showed that nitric oxide can be involved in the degeneration of brain cells through a variety of mechanisms, the new study shows a previously unrecognized relationship between the chemical and protein misfolding.”

Here’s a link to the article:

www.bloomberg.com/apps/news?pid=10000082&sid=avdCh4_MT55U

Foiling Chemical Event May Combat Brain Breakdown, Study Says
Bloomberg.com
May 24, 2006

Arctic ground squirrel clears out tau during hibernation

The PSP Family Conference, put on by the Society for PSP (Progressive Supranuclear Palsy), was held last Saturday near SFO.

As I had attended the ’04 PSP Family Conference and had heard Dr. James Tetrud speak before, I had different expectations of what he would say at this year’s conference.  He is the neurologist at The Parkinson’s Institute who probably knows the most about Atypical Parkinsonism disorders, such as PSP, LBD, MSA, and CBGD.  I compared his slides from ’06 to ’04, and was disappointed that there was nothing new to report in the area of research with one exception:  at last Saturday’s conference he mentioned the Arctic ground squirrel.

During a 7-month hibernation, the squirrel’s brain loses many of the nerve-cell connections that govern how it operates.  Tau protein accumulates in the brain — just like with Alzheimer’s Disease and PSP.  (I’m sorry to say that I don’t know the pathology of the other Atypical Parkinsonism diseases.)  Within 2 to 3 hours of emerging from hibernation, there is a wave of neuronal growth and tau is eliminated.  Thus, there appears to be a mechanism to clear tau.

Dr. Tetrud referred to a recent Economist magazine article on the subject.  I consider myself to have excellent follow-through and research skills but I was outdone on both of these fronts by Sam, a support group member who also attended the Saturday conference.  He found the article in the Feb. 4th issue (page 72).  Here’s a link to the article:

www.economist.com/node/5466196

Dementia
Sleeping on it
Similarities between dementia and hibernation suggest a treatment
The Economist
Feb 2nd 2006

It’s interesting reading!  Let’s hope something comes of it…

Robin