[From pathological diagnosis to ovulation induction. The case of ovarian insufficiency]

[Premature ovarian failure: which approaches?]

Premature ovarian failure (POF) occurs in one case of 10,000 in women below the age of 20, one case of 1000 below 30 and 1% in women before the age of 40. In 80% of POF cases, the etiology is unknown, except for Turner syndrome. Spontaneous fertility is very weak, only 3 to 10% of the patients will have natural conception. If the diagnosis is confirmed, ovarian stimulation usually fails. When fertility is desired, the alternative treatments are oocyte and/or embryo donation or adoption and "learn to be happy just in couple". Psychological management is always necessary.

[Premature ovarian failure in galactosaemia: pathophysiology and clinical management]

Classic galactosaemia is a rare aetiology of premature ovarian failure. It is caused by galactose-1-phosphate uridyltransferase deficiency and leads to a severe disease in the newborn. This acute toxic syndrome will completely regress under a galactose-free diet, but some long-term complications, particularly hypergonadotropic hypogonadism in female patients, are frequently observed. Ovarian toxicity could be due to intracellular accumulation of galactose metabolites or to deficient glycosylation reactions. Moreover, the tremendous follicular decrease in the galactosaemic ovary could also involve programmed cell death (apoptosis). As the exact mechanisms of this ovarian injury are still unknown, there is no prevention of follicular loss, thus clinical management especially includes hormonal replacement therapy in order to prevent bone loss and cardiovascular risks and sometimes to allow patients to become pregnant.