Monoamine oxidase A

Monoamine oxidase A (MAO-A) is an enzyme in the brain that helps break down certain chemicals called neurotransmitters, such as serotonin, norepinephrine, and dopamine. These chemicals are important for regulating mood, emotions, and mental function. By controlling their levels, MAO-A plays a key role in maintaining emotional balance. If MAO-A activity is too high or too low, it can influence mental health conditions like depression, anxiety, or aggression. Medications that inhibit MAO-A are sometimes used to treat depression, but their use must be carefully managed due to potential side effects.