Ania M. Oleksik

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Several studies indicate that estrogen may enhance the effects of mechanical loading on bone mineral density in elderly women. This stimulating effect of estrogen could be due to increased sensitivity of bone cells to mechanical stress in the presence of estrogen. The present study was performed to determine whether 17beta-estradiol (E2) enhances mechanical(More)
The aim of this study is to explore regional iron-related differences in the cerebral cortex, indicative of Alzheimer's disease pathology, between early- and late-onset Alzheimer's disease (EOAD, LOAD, respectively) patients using 7T magnetic resonance phase images. High-resolution T2(∗)-weighted scans were acquired in 12 EOAD patients and 17 LOAD patients(More)
BACKGROUND The Parelsnoer Institute is a collaboration between 8 Dutch University Medical Centers in which clinical data and biomaterials from patients suffering from chronic diseases (so called "Pearls") are collected according to harmonized protocols. The Pearl Neurodegenerative Diseases focuses on the role of biomarkers in the early diagnosis,(More)
BACKGROUND Postmortem studies have indicated the potential of high-field magnetic resonance imaging (MRI) to visualize amyloid depositions in the cerebral cortex. The aim of this study is to test this hypothesis in patients with Alzheimer's disease (AD). METHODS T2*-weighted MRI was performed in 16 AD patients and 15 control subjects. All magnetic(More)
INTRODUCTION We aimed to determine the added value of cerebrospinal fluid (CSF) to clinical and imaging tests to predict progression from mild cognitive impairment (MCI) to any type of dementia. METHODS The risk of progression to dementia was estimated using two logistic regression models based on 250 MCI participants: the first included standard clinical(More)
BACKGROUND Neuropsychological testing has long been embedded in daily clinical practice at memory clinics but the added value of a complete neuropsychological assessment (NPA) to standard clinical evaluation is unknown. OBJECTIVE To evaluate the added diagnostic and prognostic value of NPA to clinical evaluation only in memory clinic patients. METHODS(More)
Studies have suggested that, in subjects with subjective cognitive impairment (SCI), Alzheimer's disease (AD)-like changes may occur in the brain. Recently, an in vivo study has indicated the potential of ultra-high-field MRI to visualize amyloid-beta (Aβ)-associated changes in the cortex in patients with AD, manifested by a phase shift on T2 *-weighted MRI(More)
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