Human platelets fatty acid profiles were studied with particular inter
est to isomers of eicosapentaenoic and docosahexaenoic acids. C20:5 DE
LTA 17 trans isomer was detected in most of the samples (up to 0.48 %
of total fatty acids). Some samples also contained the DELTA 19 trans
isomer of docosahexaenoic acid (0.05 % max.).