Although the organization of bone ultrastructure, i.e. the orientation and arrangement of the mineralized collagen fibrils, has been in the focus of research for many years for cortical bone, and many models on the osteonal arrangement have been proposed, limited attention has been paid to trabecular bone ultrastructure. This is surprising because trabeculae play a crucial role for the mechanic...

Human periodontal ligament fibroblasts and L 929 cell line labelled with chromium 51 were examined by electron microscope to evaluate the effect of the chromium labeling on the cell ultrastructure. The cells were labeled with chromium 12-20 hours before the start of the experiment. Af ter two and four hours of incubation at 37°C and 100% humidity, the cells were examined by scanning and transmi...

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Methods Activity and amount of oxidative phosphorylation complexes (OXPHOS) were analysed by spectrophotometry, histochemistry and imunoelectrophoretic methods in fibroblast cell lines derived from skin biopsies of three adult male patients with Schnitzler syndrome. Ultrastructure of mitochondria, mitochondrial network and reactive oxygen species (ROS) were analysed by fluorescent and electron ...

Melatonin is known to influence various physiological processes, including plant ripening; however, the effect of melatonin on postharvest blueberry fruit softening unknown. Herein, effects at different concentrations (100, 300, and 500 μmol L-1) quality parameters, cell wall substances, cell-wall-degrading enzymes, ultrastructure fruits were investigated during low-temperature storage. treatme...