Journal
AMERICAN JOURNAL OF REPRODUCTIVE IMMUNOLOGY
Volume 61, Issue 2, Pages 167-174Publisher
WILEY
DOI: 10.1111/j.1600-0897.2008.00678.x
Keywords
Anti-tropoelastin antibody; alpha-elastin; ELISA; synthesis; degradation ratio; tropoelastin
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Funding
- Medical University of Pleven, Bulgaria [17/2008]
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The aim of this study was to investigate elastin turnover and autoimmunity in patients with a history of recurrent pregnancy loss (RPL) and during normal pregnancy. Anti-alpha-elastin and anti-tropoelastin IgG and IgM antibodies were measured by a home-made ELISA in serum samples of 60 medically and obstetrically normal pregnant women, classified to three trimester groups, 18 female patients with RPL and 18 healthy non-pregnant women with a history of successful pregnancies. One way analyses of variance and Least Significant Difference method were used for a statistical analysis. Anti-alpha-elastin IgG autoantibodies were significantly decreased in the third trimester pregnant women. IgM anti-alpha-elastin autoantibodies were significantly decreased in all pregnancy groups compared with the controls. Synthesis/degradation ratio of elastin was significantly increased in the third trimester pregnancy group, suggesting decreased elastin degradation during this period of pregnancy. Comparing the RPL patients with the healthy non-pregnant controls showed a significantly increased anti-alpha-elastin IgG antibody and significantly decreased synthesis/degradation ratio in the patient's group, suggesting increased elastin degradation in RPL. Elastin degradation is decreased during normal pregnancy. Increased anti-elastin IgG antibodies may contribute to the pathogenesis of pregnancy losses.
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