BACKGROUND Previous cross-sectional fMRI studies in subjects with prodromal Alzheimer disease (AD) have reported variable results, ranging from hypoactivation, similar to patients with AD, to paradoxically increased activation or hyperactivation compared to cognitively normal older individuals. We have hypothesized that subjects in early phases of prodromal AD may experience a period of hippoca...

BACKGROUND Approximately 2% of Alzheimer disease cases and 10% to 15% of prion disease cases are due to mutations in autosomal dominant genes. Mutations have been found in patients without family histories of neurological disease. OBJECTIVES To emphasize the need for consideration of a genetic etiology of prion disease and early-onset Alzheimer disease, regardless of the absence of a signific...

BACKGROUND AND PURPOSE Manually drawn VOI-based analysis shows a decrease in magnetization transfer ratio in the hippocampus of patients with Alzheimer disease. We investigated with whole-brain voxelwise analysis the regional changes of the magnetization transfer ratio in patients with mild Alzheimer disease and patients with amnestic mild cognitive impairment. MATERIALS AND METHODS Twenty pa...

important degenerative disease of brain.1,2 Several theories have been raised for Alzheimer disease including genetic deficiencies, slowly-progressive viral diseases, neutrophilic factors deficiencies, amyloid, free radicals, mitochondrial deficiencies and glutamate poisoning.3,4 One important phenomenon in these diseases is changes observed in copper and iron homeostasis.5,6 Since iron serum l...

BACKGROUND Knowledge regarding whether benzodiazepines and similarly acting non-benzodiazepines (Z-drugs) are associated with an increased risk of pneumonia among older adults is lacking. We sought to investigate this association among community-dwelling adults with Alzheimer disease, a condition in which both sedative/hypnotic use and pneumonia are common. METHODS We obtained data on all com...

The aim of the study is to provide (i) a standardized procedure for a Cancellation Test of Digits, designed to assess in the visual modality selective attention deficits in patients with Alzheimer's disease, and (ii) a detailed analysis of how patients cope with it. Age-, education-, and sex-adjusted normative scores earned by 352 healthy controls are set forth, as well as data yielded by the D...

L aser capture microdissection (LCM) is a new technology that is becoming increasingly important for studies of neurodegenerative disorders. A characteristic feature of all neurodegenerative diseases is “selective vulnerability.” In each of the disorders, there is selective degeneration of particular types of neurons, with relative preservation of much of the rest of the brain. Familiar example...