dopac การใช้

• One such substance is DOPAC . Another is 3-methoxytyramine ( 3-MT ).
• DOPAC can be oxidized by hydrogen peroxide, leading to the formation of toxic metabolites which destroy dopamine storage vesicles in the substantia nigra.
• Increases in neuronal levels of DOPAC, a metabolic breakdown product of dopamine, have been shown to occur in striatal isolated nerve endings as a result of exposure to vinpocetine.
• Both degradations involve the enzymes monoamine oxidase ( MAO ) and catechol-O-methyl transferase ( COMT ), albeit in reverse order : MAO catalyzes dopamine to DOPAC, and COMT catalyzes DOPAC to HVA; whereas COMT catalyzes dopamine to 3-MT and MAO catalyzes 3-MT to HVA . The third metabolic end-product of dopamine is norepinephrine ( noradrenaline ).
• Both degradations involve the enzymes monoamine oxidase ( MAO ) and catechol-O-methyl transferase ( COMT ), albeit in reverse order : MAO catalyzes dopamine to DOPAC, and COMT catalyzes DOPAC to HVA; whereas COMT catalyzes dopamine to 3-MT and MAO catalyzes 3-MT to HVA . The third metabolic end-product of dopamine is norepinephrine ( noradrenaline ).