نتایج جستجو برای: alzheimer disease ad
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alzheimer's disease (ad) is considered as the greatest thread to adults aged 65 and older. it stands as the most common cause of dementia, the prevalence of which is around 24 million worldwide. ad is a progressive and degenerative disorder that combats the neurons, leading to impairment of different cognitive functions. ad is characterized by an accumulation of two factors normally presen...
To date, nearly 35.6 million people world wide live with dementia, and the situation is going to get worse by 2050 with 115.4 million cases.(1) In the western world, the prevalence for dementia in people over the age of 60 is greater than 5% and two thirds are due to Alzheimer disease,(2) (-) (5) the most common form of dementias. Alzheimer disease (AD), first described as "presenile dementi...
The Dominantly Inherited Alzheimer Network (DIAN) is a collaborative effort of international Alzheimer disease (AD) centers that are conducting a multifaceted prospective biomarker study in individuals at-risk for autosomal dominant AD (ADAD). DIAN collects comprehensive information and tissue in accordance with standard protocols from asymptomatic and symptomatic ADAD mutation carriers and the...
This paper aims to study the abnormal patterns of brain glucose metabolism co-variations in Alzheimer disease (AD) and Mild Cognitive Impairment (MCI) patients compared to Normal healthy controls (NC) using the Alzheimer Disease Neuroimaging Initiative (ADNI) database. The local cerebral metabolic rate for glucose (CMRgl) in a set of 90 structures belonging to the AAL atlas was obtained from Fl...
Alzheimer disease (AD) is a complex neurodegenerative disease that leads to the decline in the cognition in elderly people (>65 years of age). Deposition of senile plaques (of amyloid β) and neurofibrillary tangles (of hyperphosphorylated tau) are the typical hallmarks of the disease. AD significantly contributes to the worldwide dementia, which is 46.8 million in 2015 and estimated to 131.5 mi...
Alzheimer Disease (AD) is a neurodegenerative disorder and the most common form of dementia. Increasing evidence suggests that Alzheimer's disease pathogenesis is not restricted to the neuronal compartment, but includes strong interactions with immunological mechanisms in the brain. In vitro and animal studies have linked neuroinflammation to Alzheimer's disease (AD) pathology. Studies on marke...
BACKGROUND Lewy bodies (LB) are present in at least 20% to 30% of persons with Alzheimer disease (AD) and contribute to the risk of psychosis and to excess cognitive burden. OBJECTIVE To determine whether altered striatal dopamine receptor binding is associated with LB and psychosis in AD. DESIGN Postmortem case control. SETTING Alzheimer's Disease Research Center at the University of Pit...
Oxidative stress has been associated with the onset and progression of mild cognitive impairment (MCI) and Alzheimer disease (AD). AD and MCI brain and plasma display extensive oxidative stress as indexed by protein oxidation, lipid peroxidation, free radical formation, DNA oxidation, and decreased antioxidants. The most abundant endogenous antioxidant, glutathione, plays a significant role in ...
Background: Inflammation and oxidative stress are both involved in the pathogenesis of Alzheimer disease and have been shown to be reciprocally linked. One group of molecules that have been directly associated with inflammation and the production of free radicals are the prostaglandin 13,14-dihydro 15-keto PGF2α and the isoprostane 8-iso-PGF2α. Results: To further delineate the role of inflamma...
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