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  • Title: Expression of extraocular-superfast-myosin heavy chain in rat laryngeal muscles.
    Author: Shiotani A, Flint PW.
    Journal: Neuroreport; 1998 Nov 16; 9(16):3639-42. PubMed ID: 9858372.
    Abstract:
    Superfast myosin heavy chain (MHC), which is found in jaw-closing muscle and extraocular muscle (EOM), may also be found in rat laryngeal muscles. Immunostaining and Western blot using anti-EOM antibody were performed to identify and localize EOM MHC in laryngeal muscles. Specific reactivity of laryngeal IIL MHC was confirmed by Western blot and on immunostaining, all fibers in the lateral part of thyroarytenoid muscle reacted with EOM antibody. A scattered pattern of positive fibers was observed in the medial part of the thyroarytenoid, the posterior cricoarytenoid and the lateral cricoarytenoid muscles. EOM MHC was not detected in the cricothyroid muscle. The expression of EOM MHC in rat laryngeal muscle is consistent with the functional demands of the airway protection reflex.
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