First Author | Shelling AN | Year | 2000 |
Journal | Hum Reprod | Volume | 15 |
Issue | 12 | Pages | 2644-9 |
PubMed ID | 11098038 | Mgi Jnum | J:66254 |
Mgi Id | MGI:1928193 | Doi | 10.1093/humrep/15.12.2644 |
Citation | Shelling AN, et al. (2000) Inhibin: a candidate gene for premature ovarian failure. Hum Reprod 15(12):2644-9 |
abstractText | Premature ovarian failure (POF) occurs in 1% of all women, and in 0. 1% of women under the age of 30 years. The mechanisms that give rise to POF are largely unknown. Inhibin has a role in regulating the pituitary secretion of FSH, and is therefore a potential candidate gene for ovarian failure. Using single-stranded conformation polymorphism (SSCP) and DNA sequencing, DNA samples were screened from 43 women with POF for mutations in the three inhibin genes. Two variants were found: a 1032C-->T transition in the INHssA gene in one patient, and a 769G-->A transition in the INHalpha gene in three patients. The INHssA variant appears to be a polymorphism, as there was no change in the amino acid sequence of the gene product. The INHalpha variant resulted in a non-conservative amino acid change, with a substitution from alanine to threonine. This alanine is highly conserved across species, and has the potential to affect receptor binding. The INHalpha variant is significantly associated with POF (3/43 patients; 7%) compared with control samples (1/150 normal controls; 0.7%) (Fisher's exact test, P: < 0.035). Further analysis of the inhibin gene in POF patients and matched controls will determine its role in the aetiology of POF. |