alexa Orexins hypocretins regulate drinking behaviour.
Psychiatry

Psychiatry

Journal of Addiction Research & Therapy

Author(s): Kunii K, Yamanaka A, Nambu T, Matsuzaki I, Goto K,

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Abstract Orexin/hypocretins are recently identified neuropeptides which regulate feeding behaviour. We found orexins increased water intake when administrated intracerebroventricularly to rats. The effect of orexin-A was more potent as compared with orexin-B, suggesting the possible involvement of OX(1) receptor. The efficacy of orexin-A was almost comparable with that of angiotensin II, and the effect lasted more than 3 h. Prepro-orexin mRNA level was up-regulated when rats were deprived of water. Orexin-immunoreactive varicose axons were observed in the subfornical organ and area postrema, regions implicated in drinking behaviour. These observations suggest a physiological role for orexin as mediators that regulate drinking behaviour.
This article was published in Brain Res and referenced in Journal of Addiction Research & Therapy

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