Thursday, May 13, 2010

Rats With Part of Brain Deactivated Move Toward Food But Do Not Eat

Using an animal model of binge eating, University of Missouri researchers discovered that deactivating the basolateral amygdala, a brain region involved in regulating emotion, specifically blocked consumption of a fatty diet. Surprisingly, it had no effect on the rat wanting to look for the food repeatedly. The release of opioids, pleasure chemicals that can lead to euphoria, into the brain produces binge eating in non-hungry rats. Will and his team of researchers determined that deactivating the basolateral amygdala blocked this type of binge eating. “A key to curbing the obesity epidemic in America is controlling the desire to binge eat,” Will said. “Humans have more programming to start and continue eating than to stop eating, especially when they have a bowl of ice cream in front of them. Most of us would finish it even if we weren’t hungry.” In the past when food availability was scarce, humans may have needed this “binge eating” regulation to eat enough food when it was available. Now, when humans have access to foods high in sugar and fat 24 hours a day, this regulation can cause humans to overeat.

http://www.sciencedaily.com/releases/2009/09/090908151334.htm

1 comment:

  1. I think controlling the appetite is the best way to reduce obesity in America.We have so many options when it comes to fast food. it is very convenient when we'rehungry, but if we curve our appetites we wont be craving it as much.

    ReplyDelete