Glutamatergic

Glutamatergic refers to the system that is associated with the neurotransmitter glutamate, the most abundant excitatory neurotransmitter in the nervous system. The glutamatergic system is involved in most aspects of normal brain function and can be perturbed in many neuropathologic conditions.

Overview

The glutamate neurotransmitter is the most prevalent neurotransmitter in the vertebrate nervous system. It is involved in a variety of brain functions, including learning and memory. The glutamatergic system is composed of glutamate and its receptors, which are divided into two main groups: ionotropic glutamate receptors (iGluRs) and metabotropic glutamate receptors (mGluRs).

Glutamate

Glutamate is the main excitatory neurotransmitter in the nervous system. It is involved in cognitive functions such as learning and memory in the brain. Glutamate has several important metabolic roles throughout the body. In the nervous system, glutamate plays a major role in synaptic plasticity, the ability of synapses to strengthen or weaken over time.

Glutamate Receptors

Glutamate receptors are divided into two groups: ionotropic glutamate receptors (iGluRs) and metabotropic glutamate receptors (mGluRs). iGluRs are ligand-gated ion channels that are directly activated by glutamate. mGluRs are G protein-coupled receptors that indirectly activate ion channels on the plasma membrane via a signaling cascade.

Role in Disease

Alterations in glutamatergic neurotransmission have been implicated in a number of neurological and psychiatric disorders, including schizophrenia, Alzheimer's disease, Parkinson's disease, and depression. Understanding the mechanisms of glutamatergic signaling and how they can be modulated may lead to the development of novel therapeutic strategies for these disorders.

See Also

• Neurotransmitter
• Nervous system
• Neurological disorders
• Psychiatric disorders