Changes in the muscle fibre properties of the mouse temporal muscle after weaning |
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| Authors: | Suzuki K Abe S Kim H J Usami A Iwanuma O Okubo H Ide Y |
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| Institution: | Addresses of authors: Department of Anatomy;and Oral Health Science Center, Tokyo Dental College 1-2-2 Masago, Mihama-ku, Chiba-City, Chiba 261-8502, Japan;;Division in Anatomy &Developmental Biology, Department of Oral Biology, College of Dentistry, Yonsei University, 134 Shinchon-Dong, Seodaemoon-Gu, 120-752 Seoul, Korea;;Division of Oral Anatomy, Department of Morphological Biology, Ohu University School of Dentistry, 31-1 Sankakudo, Tomita-cho, Koriyama 963-9611, Japan;;Corresponding author: Tel.: +81-43-270-3571;fax: +81 43 277 4010;e-mail: |
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| Abstract: | To clarify changes in the muscle fibre properties of the temporal muscle related to the start of masticatory movement, we immunohistochemically investigated myosin heavy chain (MyHC) isoform protein expression using pre-weaning and post-weaning mice. In addition, we examined the expression of a gene coding for those MyHC proteins. Immediately after weaning, isoforms with fast and potent contractility were frequent. This suggests that the temporal muscle plays an important role in a marked functional change in the oral cavity from lactation to mastication, contributing to oral function in cooperation with other masticatory muscles. |
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