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MSU Graduate Theses

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Inflammation

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Modulation Of Glucose Homeostasis By Nucleotide P2y2 Receptor And Biological Sex, Hailee Anne Marino Aug 2021

Modulation Of Glucose Homeostasis By Nucleotide P2y2 Receptor And Biological Sex, Hailee Anne Marino

MSU Graduate Theses

Recent insights into the pathological role of Nucleotide P2Y2 receptor suggest P2Y2R involvement in high fat diet-induced obesity and potentiates insulin resistance. However, these recent insights do not demonstrate how P2Y2R modulates glucose homeostasis under physiological conditions. Further, it remains unknown how sex biological factors influence P2Y2R receptor signaling in the regulation of glucose homeostasis. The research objective for the present study is to elucidate the novel roles of P2Y2 in fasting blood glucose and glucose tolerance (basal insulin sensitivity) under resting conditions in males and females. We expected that under physiological …


Sodium Pyruvate Ameliorates Influenza A Virus Infection In Vitro And In Vivo, Jessica M. Reel May 2021

Sodium Pyruvate Ameliorates Influenza A Virus Infection In Vitro And In Vivo, Jessica M. Reel

MSU Graduate Theses

Pyruvate is produced in duplicate at the end of glycolysis in addition to ATP and NADH. Pyruvate is the metabolite of choice in most cells, whether obtained exogenously or endogenously. Recently we found that the addition of pyruvate’s conjugate base, sodium pyruvate, to cell culture media dampened the immune response to influenza A virus (IAV) infection in cultured innate immune cells. Thus, I decided to investigate the mechanism and potential for treatment of IAV. In vitro using bone marrow derived macrophages that were infected with IAV we found that adding sodium pyruvate to the media decreased immune signaling pathways through …


It's A Hard Nacht Life: Understanding How Nlrp12 Ticks, Abbigale Julia Brown Dec 2019

It's A Hard Nacht Life: Understanding How Nlrp12 Ticks, Abbigale Julia Brown

MSU Graduate Theses

The protein NOD- like receptor pyrin domain containing 12 (NLRP12) comes from a family of protein receptors with a wide range of functions including fertility as well as anti-inflammatory properties. The biological role of NLRP12 is poorly understood: research on the mechanisms behind its function and/or activation remains contradictory between different cell models. Current research suggests its involvement in a multi-protein complex named the inflammasome. The alternative hypothesis that has also been proposed is that NLRP12 is not a part of the inflammasome, rather it negatively regulates a transcription factor known as NF-��B down stream of Toll-like receptors. NLRP12 is …


Tumor Necrosis Factor Alpha Converting Enzyme Inhibition During Acute Colitis In Mice: A Regional Analysis, Brian Maddox Jan 2015

Tumor Necrosis Factor Alpha Converting Enzyme Inhibition During Acute Colitis In Mice: A Regional Analysis, Brian Maddox

MSU Graduate Theses

Tumor Necrosis Factor-a Converting Enzyme (TACE) induces active TNFa and may contribute to the development of colitis in humans. I hypothesized that pharmacological blockade of TNFa production would improve colitis scoring through decreased expression of inflammatory biomarkers. Acute colitis was induced in wild type BALB/c mice using 5% dextran sulfate sodium (DSS) in drinking water for 7 days. TACE inhibition was accomplished through twice daily intraperitoneal injection of DPC- 333 (10mg/kg; BSM Inc.) To determine the effects of TACE blockade during colitis, the following experimental groups (n=6-7/group) were tested: 1) vehicle; 2) DPC-333; 3) 5% DSS and vehicle; and 4) …