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  • Title: Antibody to the Chlamydia trachomatis 60 kDa heat shock protein in follicular fluid and in vitro fertilization outcome.
    Author: Jakus S, Neuer A, Dieterle S, Bongiovanni AM, Witkin SS.
    Journal: Am J Reprod Immunol; 2008 Feb; 59(2):85-9. PubMed ID: 18076634.
    Abstract:
    PROBLEM: The association between 60 kDa Chlamydia trachomatis heat shock protein (CHSP60) antibodies and the etiology and outcomes of in vitro fertilization (IVF) outcomes is not well known. METHOD OF STUDY: A retrospective study with a double-blind analysis of follicular fluid from 253 IVF patients for IgG antibodies to CHSP60. RESULTS: The CHSP60 antibodies were detected in 74.1% of women without embryo implantation and in 47.9% of women with 1-3 implantations per IVF cycle (P = 0.0004). CHSP60 antibodies were detected in 69.5% of women with tubal occlusion and 49.7% of women with other causes of infertility (P = 0.01). CHSP60 antibody detection was unrelated to maternal age, number of oocytes collected, or percentage of oocytes fertilized. CONCLUSION: Detection of IgG antibody to CHSP60 may indicate persistence of C. trachomatis in the upper genital tract with low implantation rates resulting from a chronic inflammatory reaction. Alternatively, as human hsp60 is expressed in early stage embryogenesis, a cross-reacting antibody may induce destruction of the embryo.
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