000007479 001__ 7479 000007479 005__ 20231129124941.0 000007479 0247_ $$2DOI$$a10.6083/qf85nb81p 000007479 037__ $$aETD 000007479 245__ $$aThe modulatory role of TAAR1 in neurotoxicity of substituted amphetamines 000007479 260__ $$bOregon Health and Science University 000007479 269__ $$a2019 000007479 336__ $$aDissertation 000007479 502__ $$bPh.D. 000007479 520__ $$aMethamphetamine (MA) use is a global epidemic, causing mental, physical, and societal damage. Although dopamine (DA) dysregulation is the hallmark of MA-induced neurotoxicity, many underlying mechanisms remain unknown. The trace amine-associated receptor 1 (TAAR1) is activated by numerous agonists, including MA and 3,4 methylenedioxymethamphetamine (MDMA). Activation of TAAR1 inhibits DA neuronal firing and decreases rewarding effects of amphetamines, suggesting TAAR1 mitigates their harmful effects. This dissertation investigated the regulatory role of TAAR1 on transitory and sustained neurotoxic effects of amphetamines in a mouse model. Neurotoxicity was assessed through quantification of striatal biomarkers indicative of DA terminal degeneration and astrocyte activation. Thermal response to amphetamines was also recorded as hyperthermia exacerbates neurotoxicity and hypothermia can provide neuroprotection. 000007479 542__ $$fIn copyright - single owner 000007479 650__ $$aNeurotoxicity Syndromes$$032271 000007479 650__ $$aDopamine$$018026 000007479 650__ $$aMethamphetamine$$022135 000007479 650__ $$aN-Methyl-3,4-methylenedioxyamphetamine$$031121 000007479 6531_ $$ataar1 protein 000007479 6531_ $$avesicular monoamine transporter 2 000007479 691__ $$aSchool of Medicine$$041369 000007479 692__ $$aDepartment of Behavioral Neuroscience$$041394 000007479 7001_ $$aMiner, Nicholas 000007479 8564_ $$964b6c887-4814-4ec7-ab20-37dc30eebfda$$s4304013$$uhttps://digitalcollections.ohsu.edu/record/7479/files/nicholas.miner.2019.pdf 000007479 905__ $$a/rest/prod/qf/85/nb/81/qf85nb81p 000007479 909CO $$ooai:digitalcollections.ohsu.edu:7479$$pstudent-work 000007479 980__ $$aTheses and Dissertations