GABAergic system in Alzheimer’s disease: a systematic review with meta‐analysis

Cholinergic and glutamatergic dysfunctions have been widely described in Alzheimer’s disease (AD). However, the role of other neurotransmitter systems, such as the GABAergic, remains poorly understood. In fact, studies evaluating GABAergic neurotransmission in AD patients have provided contradictory results, pointing to a need for a consensus in the literature regarding the GABAergic system in AD. Thus, we aimed at examining whether the GABAergic system is altered in AD.