objective(s): exposing to stress may be associated with increased production of reactive oxygen species (ros). therefore, high level of oxidative stress may eventually give rise to accumulation of oxidative damage and development of numerous neurodegenerative diseases. it has been presented that brain-derived neurotrophic factor (bdnf) supports neurons against various neurodegenerative conditio...

Objective(s): Studies have mainly assessed the effect of hyperglycemia on18F-fluorodeoxyglucose (FDG) uptake in the brain. In this study, we assessed the FDG uptake of the brain not only in normo- and hyperglycemia but also in hypoglycemia to compare the effect of various blood glucose levels on regional FDG uptake in the brain. Methods: </...

Brain region coordination in learning Gamma-frequency oscillations have been hypothesized as a physiological mechanism of interregional communication the brain. However, until now, all supporting data correlational and thus indirect. Fernández-Ruiz et al. examined gamma-frequency activity spike coupling between entorhinal cortex hippocampal dentate gyrus during after selective perturbation timi...

Large quantities of radiopharmaceuticals prescribed for treatment and diagnosis are excreted through kidney. Therefore, radiation unwanted dose is created in kidney. As a result, exact calculation of prescribed radiopharmaceuticals amount is important. Monte Carlo method is used for simulation of radiation transport in body due to random nature of radiation. In this research, for the first time...

To optimize task sequences, the brain must differentiate between current and prospective goals. We previously showed that currently prospectively relevant object representations in working memory can be dissociated within object-selective cortex. Based on other recent studies indicating a range of areas may involved distinguishing information memory, here we conducted multivoxel pattern analyse...

Abstract Early-life stress is a risk factor for the development of behavioral and cognitive disorders in humans animals. Such stressful situations include social isolation early postnatal ontogenesis. Behavioral impairments associated with neuroplastic changes brain structures. We have found that after ten weeks isolation, male Wistar rats show abnormalities deficit, accompanied by an increase ...

AbstractResearch question How does follicle distribution evolve in the human ovarian cortex between ages of 20 and 35 years? Design Fragments from women undergoing unilateral oophorectomy for fertility preservation were obtained quantitative histological assessment, including recording two-dimensional coordinates follicles. Data analysed using spatial statistical meth...