Effects of Dipeptides on Hyperactivity in Chicks
Author Information
Author(s): Tsuneyoshi Yousuke, Tomonaga Shozo, Asechi Mari, Morishita Koji, Denbow D Michael, Furuse Mitsuhiro
Primary Institution: Kyushu University
Hypothesis
Do β-alanyl dipeptides induce hyperactivity in chicks?
Conclusion
Central β-alanyl-branched chain amino acids stimulate activity in chicks through the hypothalamus-pituitary-adrenal axis.
Supporting Evidence
- β-alanyl-L-leucine induced hyperactivity similar to carnosine.
- Both carnosine and β-alanyl-L-leucine stimulated corticosterone release.
- β-alanyl-L-isoleucine also caused hyperactivity but was less effective than β-alanyl-L-leucine.
Takeaway
This study found that certain dipeptides can make baby chicks more active, similar to how a special substance called carnosine does.
Methodology
Chicks received intracerebroventricular injections of various dipeptides, and their behavior was observed for 10 minutes.
Limitations
The study did not confirm whether these dipeptides are present in the brain.
Participant Demographics
Day-old male chicks (Julia strain)
Statistical Information
P-Value
<0.0001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website