Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Entire DC Network
Investigating The Role Of Dna Polymerase Beta In The Aging Phenotype Of Down Syndrome, Aqila Ahmed Ahmed
Investigating The Role Of Dna Polymerase Beta In The Aging Phenotype Of Down Syndrome, Aqila Ahmed Ahmed
Wayne State University Dissertations
Down syndrome (DS) is a chromosomal condition characterized by accelerated aging that has yet to be directly linked to a DNA repair defect. Reduced PolB and unrepaired damage from oxidative stress observed in DS, point toward defective base excision repair (BER). In this study, we report that low PolB transcript correlates with increased markers of senescence. The gene dosage effect of Trisomy 21 is likely the source for PolB downregulation. We show that the HSA21-localized miR-155 overexpression correlates with a decrease in Creb1 and PolB, thus establishing a putative regulatory pathway. Data from the DS mouse model, Ts65Dn, reveal low …
The Impact Of Folate Restriction On Cancer And Aging: A Mechanistic Analysis, Safa Beydoun
The Impact Of Folate Restriction On Cancer And Aging: A Mechanistic Analysis, Safa Beydoun
Wayne State University Dissertations
Aging is a multifactorial process associated with alterations in several physiological functions. It increases susceptibility to disease and ultimately results in mortality. Since the associated diseases of aging are highly prevalent in the geriatric population, targeting the aging process as a whole may provide a better way to delay these age related diseases, in turn delaying aging. Various interventions have been shown to delay aging and age related diseases. They impact a major nutrient sensing pathway, mTOR. mTOR signaling is altered in many cancers and its downregulation was shown to delay aging. Other interventions extend lifespan by altering the one …
Effects Of Altering The Peroxisomal Redox State In Models Of Degenerative Disease, Courtney Rose Giordano
Effects Of Altering The Peroxisomal Redox State In Models Of Degenerative Disease, Courtney Rose Giordano
Wayne State University Dissertations
Peroxisomes are important regulators of cellular redox balance and function as a signaling platform to regulate anti-aging metabolic and communication networks. In addition the organelle has emerged as a major player in maintaining cellular ROS at an optimal level. At such levels, these ROS are involved in initiation of signaling cascades and that produce an array of anti-aging and disease processes. However, as cells age over time, ROS amass within the peroxisome and elsewhere in the cell. This leads to an imbalance in oxidative homeostasis and results in compromised signaling networks. The goal of this dissertation was to treat disease …