We measured serum levels of the female hormones (estrogen, progesterone, and prolactin), Th1 (IL-2 and IFN-γ), Th2 (IL-4, IL-5, IL-6, and IL-10), and TGF-β cytokine levels in 4 women with uveitis during their 5 normal, full term pregnancies. Here, TGFB1 is linked to uveitis.