Exploring the Effect of Arsenic-Containing Hydrocarbon on the Bidirectional Synaptic Plasticity of the Dorsal Hippocampus

TL;DR

This study shows that a specific arsenic-containing compound improves brain plasticity, which could help with cognitive functions and brain recovery.

Contribution

The study is the first to show that AsHC 360 enhances bidirectional synaptic plasticity during the maintenance phase.

Findings

15 μg As L−1 AsHC 360 enhances bidirectional synaptic plasticity during the maintenance phase.

Calcium gradient experiments suggest AsHC 360 may influence synaptic plasticity through calcium ion levels.

Abstract

Arsenic-containing hydrocarbons (AsHCs) are common in marine organisms. However, there is little research on their effects on the central nervous system’s advanced activities, such as cognition. Bidirectional synaptic plasticity dynamically regulates cognition through the balance of long-term potentiation (LTP) and long-term depression (LTD). However, the effects of AsHCs on bidirectional synaptic plasticity and the underlying molecular mechanisms remain unexplored. This study provides the first evidence that 15 μg As L−1 AsHC 360 enhances bidirectional synaptic plasticity, occurring during the maintenance phase rather than the baseline phase. Further calcium gradient experiments hypothesize that AsHC 360 may enhance bidirectional synaptic plasticity by affecting calcium ion levels. The enhancement of bidirectional synaptic plasticity by 15 μg As L−1 AsHC 360 holds significant implications in improving cognitive function, treating neuro-psychiatric disorders, promoting neural recovery, and enhancing brain adaptability.

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