Glucosamine Increases Feeding by Activating Brain Neurons
Author Information
Author(s): Zhou Ligang, Yueh Chen-Yu, Lam Daniel D., Shaw Jill, Osundiji Mayowa, Garfield Alastair S., Evans Mark, Heisler Lora K.
Primary Institution: University of Cambridge
Hypothesis
Does glucosamine stimulate feeding by activating specific neurons in the hypothalamus?
Conclusion
Glucosamine significantly stimulates food intake and activates specific neurons in the hypothalamus associated with hunger.
Supporting Evidence
- Glucosamine infusion significantly increased food intake in rats.
- Neuronal activation was measured using cFOS as a marker.
- Activation of orexigenic neurons was observed in the arcuate nucleus and lateral hypothalamus.
Takeaway
When rats were given glucosamine, they ate more food because it made certain brain cells that tell them to be hungry more active.
Methodology
Rats were infused with glucosamine and their food intake and neuronal activation were measured.
Limitations
The study was conducted on male Sprague-Dawley rats, which may limit the generalizability of the findings.
Participant Demographics
Male Sprague-Dawley rats weighing 280–300 g.
Statistical Information
P-Value
p<0.0001
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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