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May 19, 2008 Update #73N |
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WILL THEANINE BOTH SUPPRESS APPETITE AND IMPROVE MEMORY?
Background
Recent studies suggest that theanine (L-theanine)
found in most Camellia sinensis teas may modify brain activity and
even human behavior. The following two studies, in rats, add to our
understanding of theanine as a behavior modifier.
Featured Research Study
Administration of Theanine, a Unique Amino Acid in Tea Leaves, Changed Feeding-Relating Components in Serum and Feeding Behavior in Rats.
Biosci Biotechnol Biochem. 2008 May 7. Yamada T, et.al.
Click Here for PubMed Abstract of Study
Effects of Theanine, a Unique Amino Acid in Tea Leaves, on Memory in a Rat Behavioral Test.
Biosci Biotechnol Biochem. 2008 May 7. Yamada T, et.al.
Click Here for PubMed Abstract of Study
Study Highlights
The first study above is an experimental study performed in
rats. It concluded that the oral administration of theanine "suppressed the
food intake of rats." It hypothesized that the feeding behavior change
involved a change in hormone levels, possibly a reduction in insulin and an
increase I corticosterone.
In the second study, rats were fed theanine for 3 weeks and
tested for their ability to recognize a novel object. The study concluded that
"theanine-fed rats showed improved recognition, and that theanine affected
learning and memory."
Comments
Although interesting, it is difficult to determine if the
results of these studies on rats is applicable to human behavior.
Ask your tea professional to guide you toward enjoyable tea options.
Ask your health professional to guide you toward viable health options.
Dr. Paul's Tea & Health Update, WWW.DRPAULSUPDATES.ORG, supports tea and health educational programs by bringing recent research studies into public awareness.
Copyright © 2008 Dr. Paul's School of Tea and Health, LLC. All rights reserved.
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