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Full-Text Articles in Medicine and Health Sciences

Therapeutic Efficacy Of Antioxidants In Ameliorating Obesity Phenotype And Associated Comorbidities, Steven Tun, Caleb James Spainhower, Cameron Lee Cottrill, Hari Vishal Lakhani, Sneha S. Pillai, Anum Dilip, Hibba Chaudhry, Joseph I. Shapiro, Komal Sodhi Aug 2020

Therapeutic Efficacy Of Antioxidants In Ameliorating Obesity Phenotype And Associated Comorbidities, Steven Tun, Caleb James Spainhower, Cameron Lee Cottrill, Hari Vishal Lakhani, Sneha S. Pillai, Anum Dilip, Hibba Chaudhry, Joseph I. Shapiro, Komal Sodhi

Pharmacology, Physiology and Toxicology

Obesity has been a worldwide epidemic for decades. Despite the abundant increase in knowledge regarding the etiology and pathogenesis of obesity, the prevalence continues to rise with estimates predicting considerably higher numbers by the year 2030. Obesity is characterized by an abnormal lipid accumulation, however, the physiological consequences of obesity are far more concerning. The development of the obesity phenotype constitutes dramatic alterations in adipocytes, along with several other cellular mechanisms which causes substantial increase in systemic oxidative stress mediated by reactive oxygen species (ROS). These alterations promote a chronic state of inflammation in the body caused by the redox …


Mechanisms Of Dopamine-Induced Methamphetamine Neurotoxicity, Melinda L. Asbury Jan 2020

Mechanisms Of Dopamine-Induced Methamphetamine Neurotoxicity, Melinda L. Asbury

Theses, Dissertations and Capstones

Methamphetamine (MA) neurotoxicity is particularly evident in the striatum where it causes extensive dopamine (DA) release and results in neurodegeneration. To identify specific signaling pathways and macromolecules involved in postsynaptic DA-induced striatal toxicity we used a SK-N-MC cell model that mimics postsynaptic D1 receptor-expressing striatal neurons. The cells were treated for 6-24 h with 0-50 µM DA. The concentration was chosen to impart physiological relevance to the study as it mirrors [DA] found within the striatum following MA exposure. We show that 25-50 µM DA resulted in protein changes consistent with nitro(oxidative) stress as well as enhanced cleavage of caspase …