Hi Heapsreal Thanks, it's interesting to be able to compare the results. It seems your values are evelvated, while mine are low. Also interesting to see how yours have come down with treatment. As far as NK cell function goes, i've had this test (in the summary it's under "NK cell function", whereas the other immunological values i mentioned are under "Immune status" (T cells absolute, CD4 absolute, CD8 absolute, NK cells absolute) or "Inflammation/Cytokines" (COX-2, NFkB): NK cells (relative).............6.............% Lympho..............6 - 29 (normal range) I don't know if it's the same test you had for NK cell activity and i didn't mention it in my first post, because it was not marked as abnormal. I'm right on the edge of the normal range in this one.