Effects of TCB-2 on Alzheimer's neuropathology

dc.contributor.authorCocco, Giulia
dc.contributor.supervisorSutherland, Robert J.
dc.date.accessioned2022-07-27T22:19:10Z
dc.date.available2022-07-27T22:19:10Z
dc.date.issued2022
dc.description4o pagesen_US
dc.description.abstractBackground: In recent years there’s been a surging interest in the pharmacological benefits of serotonin receptor (5-HTR) agonists to treat psychiatric disorders, one of them being Alzheimer’s Disease (AD). Research has hinted at the effects of these 5-HTR agonists on hippocampal (HPC) neurogenesis, Amyloid-b (Ab) plaque deposition and microglial activation. These are all hallmark biomarkers of AD. In light of the rise in dementia diagnoses, studies should examine different methods to moderate these symptoms. Objective: This study shows the effects of the drug (4-Bromo-3,6-dimethoxybenzocyclobuten-1-yl)methylamine hydrobromide (TCB-2) as a candidate to ameliorate AD biomarkers of neuropathology in the APPNL-G-F mouse model at 6 and 10 months of age (early and late stages). Methods: Fourteen APPNL-G-F mice were fed 0.35g of Nutella®. The treatment group received 5 mg/kg of TCB-2 whereas the controls received the vehicle only. Feeding occurred every 3 days for the length of 29 days. Afterward, they were tested on the Novel Object Recognition (NOR) task for 6 days and subsequently perfused to collect their brains and apply immunohistochemistry analysis. Results: The TCB-2 treatment was significantly more effective at decreasing A plaque count in the younger cohort, resulting in a trend of cognitive enhancement as well. It provided anti-inflammatory aid and decreased HPC surface area across all ages. Conclusion: Due to the ambiguous role of serotonin in learning and memory, our research hopes to expand its literature. The results prove that there’s potential for 5-HTR agonists to be used as medical treatments to prevent the development of AD neuropathology.
dc.identifier.urihttps://hdl.handle.net/10133/6292
dc.language.isoen_USen_US
dc.publisherUniversity of Lethbridge, Dept. of Neuroscience
dc.publisher.departmentDepartment of Neuroscience
dc.publisher.facultyCanadian Centre for Behavioural Neuroscienceen_US
dc.publisher.facultyArts and Science
dc.subjectTCB-2
dc.subjectAD neuropathology
dc.subject5-HTR agonists
dc.subject.lcshAlzheimer's disease--Research
dc.titleEffects of TCB-2 on Alzheimer's neuropathologyen_US
dc.typeHonours Thesisen_US
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