Another functionally active molecule with high
development potential is gamma-aminobutyric acid (GABA). This
amino acid acts as an inhibitor type of neurotransmitter in the
brain, binding to specific receptors on the plasma membranes in
neuronal processes. The GABA-induced antihypertensive effect
seems to be due to its inhibition of noradrenaline release through
an action on presynaptic GABA receptors, and thus suppressing the
increase in perfusion pressure (Hayakawa, Kimura, & Kamata,
2002).