# Regulation of non-emotional memory through α1-adrenergic receptors activation: A short review

## TL;DR

This review explores how α1-adrenergic receptors influence non-emotional memory and their potential in treating neurodegenerative diseases.

## Contribution

The paper highlights recent findings on α1-ARs' role in synaptic plasticity and introduces PAMs as a new therapeutic avenue.

## Key findings

- α1-ARs contribute to synaptic efficacy, LTP, and LTD in the hippocampus and neocortex.
- Activation of α1-ARs involves Gq-protein, MAPK, and cAMP signaling pathways.
- Positive allosteric modulators of α1-ARs may offer safer therapies for Alzheimer's disease.

## Abstract

The α1 adrenergic receptors (α1-ARs) play a central role in the regulation of synaptic plasticity and memory, but their role in non-emotional memory is still poorly understood. This review summarizes recent advances in understanding the functions of α1-ARs and highlights their contributions to synaptic efficacy, long-term potentiation (LTP), and long-term depression (LTD) in the hippocampus and neocortex. There is evidence that α1-AR activation occurs through intracellular pathways such as Gq-protein signaling, MAPK, and cAMP cascades. Furthermore, α1-ARs are emerging as promising therapeutic targets in neurodegenerative diseases, including Alzheimer’s disease (AD), due to their capability to modulate cognition and neuronal plasticity. New insights into positive allosteric modulators (PAMs) that cross the blood-brain barrier provide a potential avenue for safer and more effective therapies. This review highlights the need for further research to improve the understanding of α1-ARs and their potential for memory enhancement and neuroprotection.