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Neuroscience and Neurobiology Commons

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Wright State University

Pharmacology

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Full-Text Articles in Neuroscience and Neurobiology

Effects Of Fluoxetine/Simvastatin/Ascorbic Acid Combination Treatment On Neurogenesis And Functional Recovery In A Model Of Multiple Sclerosis, Olivia Cameron Webb Jan 2021

Effects Of Fluoxetine/Simvastatin/Ascorbic Acid Combination Treatment On Neurogenesis And Functional Recovery In A Model Of Multiple Sclerosis, Olivia Cameron Webb

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Whereas immune modulation has proven beneficial in multiple sclerosis (MS), we hypothesized that targeting down-stream modulators of neurogenesis and subsequent remyelination may offer an additional, if not superior, point of intervention in an attempt to repair damage and recover lost function. As such, the present study assessed the effectiveness of 30-day administration of the drug combination fluoxetine (5 mg/kg), simvastatin (1 mg/kg), and ascorbic acid (50 mg/kg) (FSA) on an early marker of neurogenesis, doublecortin (DCX), and functional recovery using the Montoya Staircase following lysolecithin-induced focal demyelination of the corpus callosum in middle-aged (10-11 month) male and female rats. Lysolecithin …


Potential Involvement Of Micro Vesicle Particles In The Synergistic Effects Of Ultraviolet-B Radiation And Platelet -Activating Factor Receptor Agonists On Cytokine Production, Shweta Bhadri Jan 2021

Potential Involvement Of Micro Vesicle Particles In The Synergistic Effects Of Ultraviolet-B Radiation And Platelet -Activating Factor Receptor Agonists On Cytokine Production, Shweta Bhadri

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Cytokines play a pivotal role in regulating inflammation, which is a condition that makes the tissue vulnerable to different pathological and physiological conditions. Thus, how cytokines are regulated is an important area of study. Skin that receives ultraviolet B radiation (UVB), a major pro-oxidative stressor, results in the release of multiple cytokines and chemokines like tumor necrosis factor (TNF)-alpha and interleukin (IL)-8. Previous studies from our group and others have demonstrated synergistic release of TNF-alpha when UVB is combined with IL-1 or the lipid mediator Platelet-activating factor (PAF). Of interest, subcellular microvesicle particles (MVP) have been proposed to play an …


Extracellular Vesicles From Uvb Irradiated Keratinocytes Contain Cyclobutane Pyrimidine Dimers, Meghana Reddy Ginugu Jan 2021

Extracellular Vesicles From Uvb Irradiated Keratinocytes Contain Cyclobutane Pyrimidine Dimers, Meghana Reddy Ginugu

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Ultraviolet (UV) radiation induces the formation of cyclobutane pyrimidine dimers (CPDs) in genomic DNA, which are normally removed by nucleotide excision repair. However, the fate of these adducts remain largely unexplored. Detection of these photoproducts in body fluids could act as a predictor of UV exposure and enable a better understanding of the pathogenesis of photosensitive skin diseases, such as lupus. Using cultured human keratinocytes exposed to UVB radiation in vitro, ultracentrifugation of cell culture supernatants, and immunodot blot analysis of isolated DNA, we have found that a small fraction of CPDs is released from cells in a dose- and …


Divalent Metal Cation Entry And Cytotoxicity In Jurkat T Cells: Role Of Trpm7 Channels, Alayna N. Mellott Jan 2020

Divalent Metal Cation Entry And Cytotoxicity In Jurkat T Cells: Role Of Trpm7 Channels, Alayna N. Mellott

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Humans are exposed daily to a variety of metals that can be harmful to our immune system. Although certain divalent metal cations are essential for numerous cellular functions and are critical trace elements in humans, the uptake mechanisms of these ions remain mostly unknown. Transient receptor potential melastatin 7 (TRPM7), which is expressed in a variety of human cell types, including lymphocytes and macrophages, conducts many divalent metal cations. TRPM7 channels are largely inactive under normal physiological conditions due to cytoplasmic magnesium acting as a channel inhibitor. Magnesium is a cofactor for many biochemical reactions. Low serum levels of magnesium, …