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Articles 1 - 4 of 4
Full-Text Articles in Biochemistry
The Contribution Of Oxidative Stress In The Protein Damage And Dna Lesion In Alzheimer's Disease Neuropathology, Cheng Zhang
The Contribution Of Oxidative Stress In The Protein Damage And Dna Lesion In Alzheimer's Disease Neuropathology, Cheng Zhang
Doctoral Dissertations
Glutathione (GSH) plays an essential role in the intracellular antioxidant defense against the oxidant radicals, especially the ·OH radical. To understand the early and progressive cellular changes in Alzheimer's disease (AD) development, we investigated reduced glutathione/oxidized glutathione (GSH/GSSG) status in a double mutated AD transgenic mouse model (B6.Cg-Tg), which carries Swedish amyloid precursor protein mutation (APPswe) and exon 9 deletion of the PSEN1 gene. Likewise, S-glutathionylation (Pr-SSG) is a specific post-translational modification (PTM) of cysteine residues by the addition of glutathione. S-glutathionylated proteins induced by oxidative stress play an essential role in understanding the pathogenesis of the aging …
Examination Of The Neurochemical Mechanisms That Mediate Nicotine Withdrawal In Adolescent And Adult Rats, Luis Alberto Natividad
Examination Of The Neurochemical Mechanisms That Mediate Nicotine Withdrawal In Adolescent And Adult Rats, Luis Alberto Natividad
Open Access Theses & Dissertations
Introduction: The mechanisms that mediate nicotine withdrawal are presently unclear and age group differences in the neurochemical effects of withdrawal have been largely unexplored. Previous studies in our laboratory demonstrated that adult rats display a decrease in extracellular levels of dopamine in the nucleus accumbens (NAcc) during nicotine withdrawal and this decrease is reduced in adolescent rats (Natividad et al., 2010). The goal of this dissertation was to examine whether these age group differences in dopamine during withdrawal are mediated via excitatory and inhibitory mechanisms that modulate dopamine in the cell body region of the ventral tegmental area (VTA). Methods: …
Mechanism Of Inhibition Of The Glua2 Receptors By N-3 Derivatives Of 2,3-Benzodiazepines With C-4 Methyl Group, Congzhou Wang
Mechanism Of Inhibition Of The Glua2 Receptors By N-3 Derivatives Of 2,3-Benzodiazepines With C-4 Methyl Group, Congzhou Wang
Legacy Theses & Dissertations (2009 - 2024)
α-Amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors are one of the three subtypes of ionotropic glutamate receptors. AMPA receptors mediate fast synaptic neurotransmission in the central nervous system (CNS). Over-activation of calcium permeable AMPA receptors causes intracellular calcium overload, which leads to neurodegeneration and cell death. As such, AMPA receptors have been implicated in a number of neurological disorders and diseases, such as epilepsy, amyotrophic lateral sclerosis (ALS), and Parkinson's disease. 2,3-Benzodiazepine derivatives (or GYKI compounds) are a group of structurally similar compounds synthesized as inhibitors of AMPA receptors, and they have been used as potential drug candidates for the treatment of various …
Investigations Into Modulation Of Brain Oxidative Stress By Various Interventions, Jessica Lynn Harris
Investigations Into Modulation Of Brain Oxidative Stress By Various Interventions, Jessica Lynn Harris
Theses and Dissertations--Chemistry
In this thesis study we examined glycogen synthase kinase-3β (GSK-3β) and its effects over Nrf2 and Pin 1 as it relates to Alzheimer’s disease (AD). AD is a neurodegenerative disease characterized by a prolonged high oxidative environment. Transcription factor Nrf2 is vital in the brain’s defense against oxidative insults through its up-regulation of over 100 antioxidants. Depletion of the brain’s antioxidant defense system results in intolerance to an oxidative environment, contributing to the progression of AD. The regulatory Pin 1 protein promotes cellular homeostasis, and when down-regulated results in increased deposits of neurofibrillary tangles (NFTs) and amyloid-β (Aβ) plaques, the …