Influence of gonadotropic hormones on the ultrastructure of rat pinealocytes |
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| Authors: | Ass Prof Dr M Karasek K Marek |
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| Institution: | (1) Laboratory of Electron Microscopy, Research Centre, Medical Academy,  ód , Poland;(2) Laboratory of Electron Microscopy, Research Centre, Medical Academy, ul. Sterlinga 5, 91425 ód, Poland |
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| Abstract: | Summary The influence of gonadotropic hormones on the ultrastructure of rat pinealocytes was studied. Human chorionic gonadotropin (HCG) as well as pregnant mare serum gonadotropin (PMSG) caused a marked activation of pinealocytes. It is characterised by a conspicuous proliferation of the granular endoplasmic reticulum and Golgi apparatus as well as an increase in number of dense core vesicles, mitochondria, dense bodies, subsurface cisternae and vesicles in the terminal buds of pinealocyte processes. The changes after HCG administration were more pronounced than after PMSG.Supported by a grant from the Polish Academy of Sciences, No. 10.4.2.01.5.6 |
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| Keywords: | Pineal organ rat Ultrastructure Gonadotropic hormones |
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