Disorders of neurotransmitters metabolism

Disorders of Neurotransmitter Metabolism

Overview

Neurotransmitters are chemical messengers that enable communication between nerve cells and regulate movement, cognition, mood, autonomic functions, and many other neurological processes. Genetic defects affecting neurotransmitter synthesis, metabolism, transport, or degradation can lead to rare but potentially treatable neurological disorders.

What Does This Gene Panel Detect?

The Disorders of Neurotransmitter Metabolism Gene Panel evaluates genes associated with inherited abnormalities involving:

• Dopamine and serotonin metabolism
• GABA and glutamate pathways
• Glycine and other inhibitory neurotransmitters
• Neurotransmitter synthesis and degradation
• Cofactor and vitamin-dependent neurotransmitter pathways
• Neurotransmitter transport and vesicular release

Clinical Indications

Testing may be considered in individuals presenting with:

• Developmental delay or intellectual disability
• Movement disorders, dystonia, or tremor
• Hypotonia or abnormal muscle tone
• Seizures or unexplained neurological episodes
• Ataxia or progressive neurological deterioration
• Abnormal eye movements
• Sleep or behavioral abnormalities
• Unexplained neurological symptoms beginning in infancy or childhood
• Suspected inherited neurotransmitter disorders

Why Genetic Testing?

Genetic testing can help:

• Identify the underlying molecular cause
• Establish or confirm a diagnosis
• Differentiate between clinically similar neurological disorders
• Support targeted treatment and management
• Provide information about inheritance and recurrence risk
• Enable appropriate family screening when indicated

Sample

Preferred sample: Peripheral blood in EDTA tube

Test Method

Next-Generation Sequencing (NGS) with bioinformatic analysis of clinically relevant genes. Depending on the laboratory workflow, variant confirmation and additional methods may be recommended.

Important Note

A genetic result should be interpreted together with the patient's clinical findings, biochemical investigations, neurotransmitter/metabolite studies, and family history. Genetic counselling is recommended for appropriate interpretation and family planning.

Who May Benefit?

This panel may be useful for neurologists, pediatricians, geneticists, metabolic specialists, and clinicians evaluating unexplained neurological or movement disorders.

Early diagnosis can be important because some neurotransmitter disorders have specific or potentially treatable therapeutic options.