Effects of adolescent sucrose overconsumption on serotonin and dopamine signalling and associated maladaptive effects in adulthood

(2022) Effects of adolescent sucrose overconsumption on serotonin and dopamine signalling and associated maladaptive effects in adulthood. PhD by Publication, Queensland University of Technology.

Description

High sugar diet contributes to the development of obesity. Recent research suggests that the brain responds to sugar overconsumption similar to drugs of abuse. It is unknown how sugar overconsumption impacts serotonin and dopamine which are critical to the brain’s reward system. This thesis characterises an animal model of sugar overconsumption to examine the relationship between dopamine/serotonin signalling and sugar intake. Our results suggest that sugar dependence negatively influences emotional behaviour and impulse control, dopamine/serotonin signalling and production of new neurons. Understanding how sugar affects the brain will allow the development of drugs to reduce sugar intake and obesity.

Impact and interest:

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ID Code: 228732
Item Type: QUT Thesis (PhD by Publication)
Supervisor: Bartlett, Selena, Chehrehasa, Fatemeh, & Belmer, Arnauld
Keywords: Sucrose, Sugar addiction, Obesity, Serotonin, Dopamine, Anxiety, Depression, Impulsivity, Neurogenesis, Neuroplasticity
DOI: 10.5204/thesis.eprints.228732
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Schools > School of Clinical Sciences
Institution: Queensland University of Technology
Deposited On: 22 Mar 2022 23:53
Last Modified: 22 Mar 2022 23:53