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Premature ovarian failure

Premature ovarian failure is clearly a heterogeneous disorder. The terms 'hypergonadotropic ovarian failure' and 'hypergonadotropic ovarian dysgenesis' (see ODG1, 233300) have been used to indicate a group of disorders in which amenorrhea associated with elevated levels of serum gonadotropins occurs long before the age of 40 years (Coulam, 1982). Cytogenetic studies of X-chromosome aberrations have suggested that it is mainly the long arm of the X chromosome that is involved in defects of ovulation (Bione et al., 1998). Genetic Heterogeneity of Premature Ovarian Failure Mutations in genes identified within a region defined as POF2 (Xq13.3-q21.1) have been found to cause other forms of POF: POF2A (300511) by mutation in the DIAPH2 gene (300108) and POF2B (300604) by mutation in the POF1B gene (300603). See also POF3 (608996), caused by mutation in the FOXL2 gene (605597) on chromosome 3q22; POF4 (see 300510), caused by mutation in the BMP15 gene (300247) on chromosome Xp11; POF5 (611548), caused by mutation in the NOBOX gene (610934) on chromosome 7q35; POF6 (612310), caused by mutation in the FIGLA gene (608697) on chromosome 2p13; POF7 (612964), caused by mutation in the NR5A1 gene (184757) on chromosome 9q33; POF8 (615723), caused by mutation in the STAG3 gene (608489) on chromosome 7q22; POF9 (615724), caused by mutation in the HFM1 gene (615684) on chromosome 1p22; and POF10 (612885), caused by mutation in the MCM8 gene (608187) on chromosome 20p12. [from OMIM]

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Primary ovarian failure

Malfunctioning of the ovaries such that a girl never begins menstruation. [from HPO]

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