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Updated: Jun 5, 2025

Using Enzyme-based Biosensors to Measure Tonic and Phasic Glutamate in Alzheimer's Mouse Models
Published on: May 3, 2017
Harmonic activity of glutamate dehydrogenase and neuroplasticity: The impact on aging, cognitive dysfunction, and
Shakiba Salarvandian1, Hadi Digaleh2, Fariba Khodagholi1
1Neuroscience Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Abstract:
In recent years, glutamate has attracted significant attention for its roles in various brain processes. However, one of its key regulators, glutamate dehydrogenase (GDH), remains understudied despite its pivotal role in several biochemical pathways. Dysfunction or dysregulation of GDH has been implicated in aging and various neurological disorders, such as Alzheimer's disease and Parkinson's disease. In this review, the impact of GDH on aging, cognitive impairment, and neurodegenerative conditions, as exemplars of the phenomena that may affected by neuroplasticity, has been reviewed. Despite extensive research on synaptic plasticity, the precise influence of GDH on brain structure and function remains undiscovered. This review of existing literature on GDH and neuroplasticity reveals diverse and occasionally conflicting effects. Future research endeavors should aim to describe the precise mechanisms by which GDH influences neuroplasticity (eg. synaptic plasticity and neurogenesis), particularly in the context of human aging and disease progression. Studies on GDH activity have been limited by factors such as insufficient sample sizes and varying experimental conditions. Researchers should focus on investigating the molecular mechanisms by which GDH modulates neuroplasticity, utilizing various animal strains and species, ages, sexes, GDH isoforms, brain regions, and cell types. Understanding GDH's role in neuroplasticity may offer innovative therapeutic strategies for neurodegenerative and psychiatric diseases, potentially slowing the aging process and promoting brain regeneration.
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