Anti-beta 2 glycoprotein 1 and anti-annexin V antibodies in women with recurrent miscarriage

While it has been established that anti-phospholipid antibodies (aPL) are a ssociated with recurrent miscarriage (RM), the importance of anti-beta2 gly coprotein 1 (GP1) IgG and anti-annexin V IgG antibodies as risk factors for RM is undefined. We have investigated the prevalence of anti-beta2 GP1 IgG and anti-annexin V IgG antibodies in 54 aPL-positive and 48 aPL-negative w omen with RM, The prevalence of IgG anti-beta2 GP1 antibodies was not signi ficantly different in persistently aPL-positive women with RM (7%), aPL-meg ative women with RM (6%) and the normal parous control group (3%). Anti-ann exin V IgG antibody prevalence was significantly increased in aPL-positive women with RM compared with aPL-negative women with RM (P = 0.01). The elev ations were found in 35%, 19% and 16% of aPL-positive women with RM, aPL-ne gative women with RM and the control group respectively. No women showed po sitivity for both anti-beta2 GP1 IgG and anti-annexin V antibodies. Anti-be ta2 GP1 IgG antibodies do not appear to be contributory to the investigatio n of women with RM. Anti-annexin V antibody positivity, although associated with aPL positivity in women with RM, is not an independent risk marker.