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Full-Text Articles in Life Sciences
Thc On The Brain: Adult Vs. Adolescent Changes, Addison Smartt, Jeffrey Edwards Phd
Thc On The Brain: Adult Vs. Adolescent Changes, Addison Smartt, Jeffrey Edwards Phd
Library/Life Sciences Undergraduate Poster Competition 2023
Δ9 -tetrahydrocannabinol (THC) has been demonstrated to cause elimination of cannabinoid 1 receptor (CB1) mediated long term depression (LTD) of GABA neurons in the ventral tegmental area (VTA) of the brain. Through electrophysiology and quantitative PCR experiments, this study reveals that LTD elimination is more pronounced in adolescents than adults, giving an explanation for the increased risk of THC dependency in adolescence. However, after a seven day withdrawal period, these effects were reversed. The data also supports the hypothesis that removal or desensitization of CB1 receptors from the synapse is an important mechanism of THC-induced neural and cognitive changes.
Identifying Deep Brain Photoreceptors In The Larval Zebrafish Optic Tectum, Emalie A. Christensen, Allison G. Pickens, Sarah Y. Jarrett, Maurice Hunt, Arminda Suli
Identifying Deep Brain Photoreceptors In The Larval Zebrafish Optic Tectum, Emalie A. Christensen, Allison G. Pickens, Sarah Y. Jarrett, Maurice Hunt, Arminda Suli
Library/Life Sciences Undergraduate Poster Competition 2023
Deep brain photoreceptors (DBPs) are light sensing neurons present in mammals and non-mammalian vertebrates. In non-mammalian vertebrates, studies have shown DBP involvement in various time and light dependent behaviors including circadian rhythm, phototaxis, and seasonal reproduction. In adult teleosts, DBPs are present throughout the brain, including the optic tectum (OT). While their approximate location in teleosts is known, DBP’s function is relatively unknown. In this study, we focused on DBPs present in the larval zebrafish OT, a multilaminated midbrain structure responsible for multisensory integration. Single-cell RNA sequencing of the larval zebrafish OT showed the presence of several opsins. We focused …