Light, circadian cycles, and cardiac function

David Hallowell st93q84w at Dunx1.OCS.Drexel.Edu
Fri Apr 8 18:07:07 EST 1994


I'm not sure if this really is the correct place to post this but...I'm
interested in testing the relationship between circadian rhythms and
cardiac function and the affect that light might have on this relationship
for a class project.
How would I go about doing this?  I have a clue how to test this 
generally, but I'm not sure on the specifics: what organism to use, how 
to test for changes in cardiac function....

It's too hard to use humans since I can't think of anyone that is willing
or has the time to undergo light depravation for this experiment.  Can
heart rate and/or blood pressure be measured in mice?  Does anyone know of
any organisms that might prove to be easiest to study?

Any help or insight is great appreciated!


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