Molecular Human Reproduction Vol. 2, NUMBER 3 pp. 149-152, 1996
© European Society of Human Reproduction and Embryology 1996
research-article |
Endometriosis associated with the N314D mutation of galactose-1-phosphate uridyl transferase (GALT)
1Department of Obstetrics and Gynecology and the OB-GYN Epidemiology Center, Brigham and Women's Hospital 221 Longwood Avenue, Boston, MA 02115 2Division of Medical Geneties, Children's Hospital of Los Angeles 4650 Sunset Boulevard, Los Angeles, CA 90027, USA
To whom correspondence should be addressed at: 3To whom correspondence should be addressed
To explore a possible connection between endometriosis, Mülerian anomalies, and possession of the N314D allele of the gene for galactose-1-phosphate uridyl transferase (GALT), we studied 33 women with endometriosis attending a fertility clinic. Patients completed questionnaires and had DNA tested for the N314D mutation of GALT. A previously completed general population survey of 111 women which obtained the same information was available for comparison. Women with endometriosis were more likely to carry at least one N314D allele (30% compared with 14%) and more likely to report a medical history of scoliosis (21% compared with 2%) compared to general population controls: two features we have described in women with vaginal agenesis. Compared with endometriosis cases without the N314D allele, those cases with the allele tended to have more advanced disease and a family history of endometriosis. We speculate that endometriosis may arise due to defects of canalization of the cervix leading to cervical stenosis and retrograde menstruation. The relevance of the N314D mutation, via this model, may derive from an association between abnormalities of galactose metabolism and vaginal agenesis which represents a canalization defect of the vaginal plate of the Müllerian tubercle, the same structure which gives rise to the cervix.
endometriosis/galactose-1-phosphate uridyl transferase/Müllerian anomalies/scoliosis
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