Description
Xenin is an endogenous neurotensin-related peptide hormone that exhibits anorexigenic activity, suppressing feeding behavior in vivo in an IL-1R-dependent manner. Xenin also induces relaxation in ileal smooth muscle cells through activity at neurotensin-type apamin-sensitive receptors. Xenin also delays gastric emptying in vivo, likely contributing to its effects on feeding behavior.
References
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Kim ER, Mizuno TM. Xenin delays gastric emptying rate and activates the brainstem in mice. Neurosci Lett. 2010 Aug 30;481(1):59-63. PMID: 20599589.
Alexiou C, Zimmermann JP, Schick RR, et al. Xenin--a novel suppressor of food intake in rats. Brain Res. 1998 Aug 3;800(2):294-9. PMID: 9685684.
Clemens A, Katsoulis S, Nustede R, et al. Relaxant effect of xenin on rat ileum is mediated by apamin-sensitive neurotensin-type receptors. Am J Physiol. 1997 Jan;272(1 Pt 1):G190-6. PMID: 9038893.