our data suggest that ( i ) the brain tryptophan content is an important factor in the control of both 5-hydroxytryptamine and tryptamine synthesis ( ii ) brain 5-hydroxytryptamine metabolism exhibits a u-shaped relationship with age ( iii ) the mean brain tryptophan content and rate of 5-hydroxytryptamine metabolism are greater for women than men ( iv ) indoleamine metabolism is unaffected in untreated epileptics compared with non-epileptics , but anticonvulsant drugs decrease the rate of 5-hydrosytryptamine metabolism .
C0006104
brain
C0423896
content