Kállay M, Juhász-Bánhidi L
Biophysical Institute, Medical University, Pécs.
Acta Biochim Biophys Hung. 1987;22(1):107-12.
Electron microscopic autoradiographic investigations to study the localization of Ca in muscle were performed using heart muscle. The distribution of autoradiographic grains, originating from Ca-45 were compared above myofibrils and interfibrillar spaces of the ventricle, auricle and sinus node of the heart. Our aim was to get new data on the role of Ca in the mechanical activity of muscle with special consideration of the Ca content of interfibrillar spaces. The different distribution of grains in the muscle fibrils and interfibrillar spaces of various parts of the heart can be in connection with the different activities of these parts. The more Ca content in myofibrils of ventricle cells may be in connection with its greater mechanical activity and its work.
利用心肌进行了电子显微镜放射自显影研究，以探究钙在肌肉中的定位。比较了源自钙 - 45的放射自显影颗粒在心脏心室、心房和窦房结的肌原纤维上方和肌原纤维间间隙的分布情况。我们的目的是获得关于钙在肌肉机械活动中的作用的新数据，特别考虑肌原纤维间间隙的钙含量。心脏不同部位的肌原纤维和肌原纤维间间隙中颗粒的不同分布可能与这些部位的不同活动有关。心室细胞肌原纤维中较高的钙含量可能与其较强的机械活动及其功能有关。
