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Enhancing Dna-Damaging Therapy Through The Inhibition Of Dntp Synthesis Using A Synergistic Drug Combination To Treat Pancreatic Neuroendocrine Neoplasms, Jennifer Castle Md Jan 2023

Enhancing Dna-Damaging Therapy Through The Inhibition Of Dntp Synthesis Using A Synergistic Drug Combination To Treat Pancreatic Neuroendocrine Neoplasms, Jennifer Castle Md

Theses and Dissertations--Clinical and Translational Science

Despite clinical advances, pancreatic neuroendocrine neoplasms (pNEN) remain a difficult clinical entity to treat and can carry a poor prognosis. Systemic therapy is used to treat pNENs which are not amenable to surgical resection. Peptide receptor radionuclide therapy, a form of radiation therapy (RT) and cisplatin are two different forms of DNA-damaging therapy in current use to treat pNENs. However, their efficacy remains poor as single agents. This study aimed to increase the sensitivity of pNENs to the DNA-damaging agents, RT and cisplatin, by inhibiting deoxynucleotide triphosphate (dNTP) synthesis. Triapine, a ribonucleotide reductase inhibitor (RNRi), and ataxia telangiectasia and Rad3-related …


Assessment Of The Interplay Between Regional Β-Amyloid Burden And White Matter Hyperintensities On Cognition And Default Mode Network In Clinically Normal Older Participants, Doaa G. Ali Jan 2023

Assessment Of The Interplay Between Regional Β-Amyloid Burden And White Matter Hyperintensities On Cognition And Default Mode Network In Clinically Normal Older Participants, Doaa G. Ali

Theses and Dissertations--Clinical and Translational Science

Objective: Alzheimer’s disease (AD) and subcortical vascular dementia are considered the most common pathologic contributors to dementia in the aging population. Both frequently coexist in over 80% of community dwelling adults with dementia. The neuropathological development of AD arguably begins with β-amyloid (Aβ) deposition in the brain. This series of studies aims to test the hypothesis that early focal regional amyloid deposition in the brain is associated with cognitive performance in specific cognitive domain scores in preclinical AD (pAD) (study1). Since mixed dementia is widely recognized as the norm rather than the exception, the second study aimed to explore the …