Abstract
Upon exercise, IL-6 produced by skeletal muscles plays a key role in glucose homeostasis in skeletal muscles during physical exercise. In this article, the role of IL-6 in masticatory activity (MA) were reviewed, especially in the unique model of gnawing behavior (GB) in mice. GB induced IL-6 mRNA expression in masseter muscles and also increased SOCS-3 mRNA expression, a downstream molecule of IL-6 signaling. Interestingly, mice fed with harder pellet food exhibited higher MA and also lower IL-6 mRNA expression in masseter muscle. IL-6-deficient mice exhibited much lower MA. In addition, in masseter muscle, the recovery of glycogen level after GB and the Glut4 mRNA expressions were lower in IL-6-deficient mice.
Taken together, IL-6 produced in masseter muscle in response to mastication plays a key role in sustaining normal masticatory activity by supporting glucose homeostasis, and that daily provision of hard food increases MA, with a decreasing dependency on IL-6 production.
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Tsuchiya, M. et al. (2012). Roles of IL-6 in Mastication in Mice and Effects of Training and Food Hardness. In: Sasaki, K., Suzuki, O., Takahashi, N. (eds) Interface Oral Health Science 2011. Springer, Tokyo. https://doi.org/10.1007/978-4-431-54070-0_21
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DOI: https://doi.org/10.1007/978-4-431-54070-0_21
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-54069-4
Online ISBN: 978-4-431-54070-0
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