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Full-Text Articles in Neurosciences
Reversal Of Neurodegeneration By Engineered Monocytes In Alzheimer’S Disease, Chao-Hsien Chen
Reversal Of Neurodegeneration By Engineered Monocytes In Alzheimer’S Disease, Chao-Hsien Chen
Dissertations & Theses (Open Access)
The health challenges posed by Alzheimer’s disease (AD) continue to grow as societies age worldwide. Accumulation of Tau-associated pathology correlates with clinical cognitive deterioration in AD. Resident myeloid cells within the central nervous system (CNS) have a limited capacity to uptake and degrade Tau; however, the resulting secretion of proinflammatory cytokines only acts to accelerate neurodegeneration. Therapeutic antibodies can reduce the neurotoxic oligomeric form of Tau (o-Tau), but in doing so they also aggravate inflammation. Attenuating mutation of the antibody Fc region can silence inflammation but also eliminates its capacity to mediate o-Tau clearance by CNS myeloid cells. Thus, there …
The Role Of Hiv-1 Proteins In Alzheimer's Disease Pathology, Brian Nelson Giunta
The Role Of Hiv-1 Proteins In Alzheimer's Disease Pathology, Brian Nelson Giunta
USF Tampa Graduate Theses and Dissertations
Prevalence of HIV-associated cognitive impairment is rising, the worst form of which is HIV-associated dementia (HAD). The disease is fuiled by a chronic innate type pro-inflammatory response in the brain which is highly dependent upon the activation of microglia. We first created an in vitro model of HAD composed of cultured microglial cells synergistically activated by the addition of IFN-gamma and the HIV-1 coat glycoprotein, gp120. This activation, as measured by TNF-alpha and NO release, is synergistically attenuated through the alpha7nAChR and p44/42 MAPK system by pretreatment with nicotine, and the cholinesterase inhibitor, galantamine. As these medications have been FDA …