PLOD1 and hypogonadism: In contrast, a previous study showed unchanged levels of LH and FSH (as well as oestradiol and inhibin B) before and 24 months after PRRT [33], and another study with a longer follow-up showed no differences in secondary hypogonadism rates between PRRT-treated and control females, with no differences in FSH levels between these two subgroups; moreover, none of the PRRT-treated post-menopausal women had inappropriately low levels of FSH and LH [113].