Factors affecting the GABAergic synapse function in Alzheimer's disease: Focus on microRNAs

Area of Science:

• Neuroscience
• Molecular Biology
• Gerontology

Background:

• Alzheimer's disease (AD) is a neurodegenerative disorder marked by cognitive decline.
• Key pathological hallmarks include amyloid beta (Aß) plaques and phosphorylated Tau (p-tau) tangles.
• GABAergic synapses, vital for inhibitory neurotransmission, are notably dysfunctional in AD.

Purpose of the Study:

• To explore GABA receptor involvement in AD-related neurological dysfunction.
• To identify biological and environmental factors contributing to GABAergic neuron dysfunction in AD.
• To investigate the role of microRNAs (miRNAs) in regulating GABAergic synapse function in AD.

Main Methods:

• Literature review and analysis of existing research on AD pathology.
• Examination of factors including Aß, p-tau, aging, sex, APOE, lifestyle, and comorbidities.
• Focus on specific miRNAs (e.g., miR-27b, miR-30a, miR-190a/b) implicated in GABAergic regulation.

Main Results:

• GABAergic synapse dysfunction is a significant contributor to neurological deficits in AD.
• Multiple factors, including protein aggregates, aging, and genetic predispositions, impact GABAergic function.
• Specific miRNAs are identified as key regulators of GABAergic synapse integrity in AD.

Conclusions:

• Dysfunctional GABAergic synapses are central to AD's neurological impact.
• Understanding the interplay of biological and environmental factors, modulated by miRNAs, is crucial for AD research.
• Targeting miRNA-mediated regulation of GABAergic pathways may offer novel therapeutic strategies for AD.