NR546 Week 2 Discussion: Gamma Aminobutyric Acid(GABA)

• NR546 Week 2 Discussion

The Gamma-aminobutyric acid (GABA) is the primary inhibitory neurotransmitter in the brain. It acts by lowering the excitability of the neurons of the whole nervous system that leads to calmness and relaxation. The significance of GABA has to do with mood, sleep, anxiety, and muscle tone since it suppresses excessive brain activation (Hepsomali et al., 2020). It maintains the level of excitation and inhibition of the central nervous system and helps to stabilize mental and emotional activity.

Generalized anxiety disorder (GAD) and other anxiety-related disorders have been highly attributed to a lack of GABA. When the levels of GABA are low, the brain is overexcited, and this could lead to persistent worrying, anxiety, restless feelings, and inability to concentrate. When an individual is affected with GAD, he or she often mentions having an on-edge feeling or an easily scared mood, which are some signs that the brain is no longer receiving the calming effect that would have been reached had there been enough GABA present. On the other hand, better GABA activity will result in a relaxed state, which is useful in the treatment of such symptoms.

They presume that insomnia, muscle tension, irritability, and other symptoms that are reported in GAD are the consequences of the absence of GABA. This will cause the sympathetic nervous system to be in a hyperactive state, as there will be no sufficient GABA to reduce the overfiring of the brain cells, resulting in the development of chronic stress and fear responses. This inconsistency promotes the process of anxiety and results in the failure to remove the symptoms if it is not effectively handled.

The benzodiazepine family of drugs is one of the most common pharmacologic treatments of the GABA-related disorders, such as GAD (Ghit et al., 2021). GABA-A receptor agonists Benzodiazepines (e.g., lorazepam, diazepam, alprazolam) are agonists of GABA-A receptors. They do not stimulate the production of GABA directly but stimulate the natural inhibitory action of GABA by stimulating the opening of chloride channels in neurons, which enhances the frequency of opening chloride channels, which increases neuronal inhibition (Garakani et al., 2020). As a result, the anxiolytic and the anti-anxiety effect of GABA is intensified, reducing the levels of panic, tension, and anxiety in muscles.

As much as benzodiazepines have a short-term role in symptomatic treatment, their use should be cautious since they tend to cause dependence, tolerance, and sedation. Selective serotonin reuptake inhibitors (SSRIs) are typically prescribed in treating the GABA-related anxiety disorders on a long-term basis (Spurny et al., 2021). They primarily act on serotonin, although long-term, indirectly, they influence the amount of GABA, which stabilizes mood and relieves anxiety without the addictive effects of benzodiazepines.

In conclusion, GABA is significant in the control of emotions, especially in preventing overstimulation of the brain. GABA deficiency is also linked with anxiety disorders such as GAD, whereby the inhibitory messages are compromised, leading to constant worry and anxiety. As agonists of the GABA receptors, benzodiazepines can trigger an immediate effect on alleviating the symptoms by enhancing the inhibitory effect of GABA, though long-term therapy can be performed using an SSRI, since they possess a more favorable profile. Effective pharmacodynamics of GABA will help psychiatric nurse practitioners make good decisions in the management of anxiety disorders.