BACKGROUND/AIM Alzheimer disease, a common proteopathy of advanced age, is characterized by cortical atrophy, neuron degeneration, neuronal loss, and accumulation of extracellular amyloid β plaques. We aimed to investigate serum vitamin B12 and folic acid levels in Alzheimer disease and other dementia patients, as a potential screening test to detect presymptomatic Alzheimer disease in Turkish ...

MR spectroscopy is a noninvasive technique that allows the detection of several naturally occurring compounds (metabolites) from well-defined regions of interest within the human brain. Alzheimer disease, a progressive neurodegenerative disorder, is the most common cause of dementia in the elderly. During the past 20 years, multiple studies have been performed on MR spectroscopy in patients wit...

In Alzheimer disease, neuronal degeneration and the presence of neurofibrillary tangles correlate with the severity of cognitive decline. Neurofibrillary tangles contain the antigenic profile of many cell cycle markers, reflecting a re-entry into the cell cycle by affected neurons. However, while such a cell cycle re-entry phenotype is an early and consistent feature of Alzheimer disease, the m...

Dementia is one of the facts than most contributes to the disability and dependence in elderly people. Alzheimer´s disease is the cause more common of dementia in the world. In Mexico, the prevalence of Alzheimer´s disease is 7.3% and incidence of 27.3 per 1,000 people/year. Mexican population studies have determined that Alzheimer´s disease is highly associated to women and their risk to devel...

Interleukin 1, an immune response-generated cytokine that stimulates astrocyte proliferation and reactivity (astrogliosis), was present in up to 30 times as many glial cells in tissue sections of brain from patients with Down syndrome and Alzheimer disease compared with age-matched control subjects. Most interleukin 1-immunoreactive glia in Down syndrome and Alzheimer disease were classified as...

BACKGROUND Zinc is one of the most important elements for human body. Zinc deficiency can occur in any age, if it is seen in elderly its clinical results can be more harmful due to already diminished functions. Some studies showed zinc deficiency has an important role in the pathogenesis of Alzheimer disease. In this study we measured the nail zinc levels and aimed to show its clinical implicat...

OBJECTIVE To disclose a novel mutation of the presenilin 1 (PS1) gene responsible for early-onset Alzheimer disease and to clarify genotype-phenotype correlation that should help to establish the function of this protein. BACKGROUND The PS1 and presenilin 2 (PS2) genes carry missense mutations in families with Alzheimer disease. The PS1 and PS2 proteins have similar structures, and all presen...

Alzheimer disease is a progressive neurodegenerative disorder, mainly affecting older people, which severely impairs patients' quality of life. In the recent years, number affected individuals has seen rapid increase. It estimated that up to 107 million subjects will be by 2050 worldwide. Research in this area revealed lot about biological and environmental underpinnings Alzheimer, especially i...

Introduction: The nature of the Alzheimer’s disease gradually makes patients dependent to persistent care. This may have a large negative effect on the caregivers’ quality of life and predisposes them to psychological distress. Spirituality, however, may act as a buffer and enhance their adaptability with stressful conditions. This study aimed to evaluate the association betwee...

The extent of microbial community diversity in two similar sandy surface soils from Virginia and Delaware (USA) was analysed with a culture-independent small subunit ribosomal RNA (SSU rRNA) gene-based cloning approach with about 400–700 SSU rDNA clones obtained from each sample. While there were no operational taxonomic units (OTUs) having more than three individuals, about 96–99% of the OTUs ...