Avtor/Urednik | Shelling, Andrew N; Burton, Karen A; Chand, Ashwini L; van Ee, Cynthia C; France, John T; Farquhar, Cynthia M; Milsom, Stella R; Love, Donald R; Geršak, Ksenija; Aittomaeki, Kristiina; et al, ; | |
Naslov | Inhibin: a candidate gene for premature ovarian failure | |
Tip | članek | |
Vir | Hum Reprod | |
Vol. in št. | Letnik 15, št. 12 | |
Leto izdaje | 2000 | |
Obseg | str. 2644-9 | |
Jezik | eng | |
Abstrakt | Premature ovarian failure (POF) occurs in 1% of all women, and in 0.1% of women under age of 300 years. The mechanisms that give rise to POF are largerly 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 (SSCO) and DNA sequencing, DNA samples were screened from 43 woman with POF for mulÐtations in the three inhibin genes. Two variants were found: a 1032C -->T transition in the INHbetaA gene in one patients, and a 769G -->A transition in the INHalpha gene in three patients. The INHbetaA variant appears to be a polymorphism, as there was no change in the amino acid sequence of the gene product. The INHalpha variant resultes 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. | |
Deskriptorji | OVARIAN FAILURE, PREMATURE FSH INHIBIN INFERTILITY, FEMALE ADULT POLYMORPHISM, SINGLE-STRANDED CONFORMATIONAL BASE SEQUENCE POLYMERASE CHAIN REACTION MUTATION |