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Research about the mechanism in masticatory muscle dysfunctional induced by hemimastication / 华西口腔医学杂志
Article in Chinese | WPRIM | ID: wpr-350228
Responsible library: WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To study the mechanism in masticatory muscle dysfunctional induced by hemimastication.</p><p><b>METHODS</b>Ca2+ contents were measured with atomic absorption spectrometry; calcinuerin were measured with colorimetric method; muscle fiber types were measured with adenosine-triphosphate (ATPase) staining.</p><p><b>RESULTS</b>(1) Compared with the controls, Ca2+ contents in experimental group had the higher level except 8 weeks (P < 0.05). (2) The ratio of slow fiber in experimental group increased, higher than the match groups (P < 0.05). (3) With Ca2 contents rise, the activities of calcinuerin present a bell-like shape. (4) The ratio of slow-type fiber was positively correlated to the activities of calcinuerin (r = 0.876, P < 0.05).</p><p><b>CONCLUSION</b>The signal way of muscle fiber growth and fiber transformation were activated by high concentration of calcium, then, muscle fiber transferred from fast to slow type. It may play an important role in the mechanism that hemimastication result in masticatory muscles dysfunction.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Humans / Adenosine Triphosphate / Calcium / Mastication / Masticatory Muscles Language: Chinese Journal: West China Journal of Stomatology Year: 2011 Type: Article
Full text: Available Index: WPRIM (Western Pacific) Main subject: Humans / Adenosine Triphosphate / Calcium / Mastication / Masticatory Muscles Language: Chinese Journal: West China Journal of Stomatology Year: 2011 Type: Article