title: Chlamydia trachomatis-associated ectopic pregnancy: serologic and histologic correlates.
abstract: Fifty-five women with ectopic pregnancy and 24 undergoing tubal ligation with a segmental resection of the fallopian tube were evaluated for histopathology of the fallopian tube, Chlamydia trachomatis serum antibodies, antibodies to a chlamydial sarkosyl-soluble 57-kDa protein, and for isolation of C. trachomatis. Plasma cell infiltration in the fallopian tube submucosa was identified in 31 (65%) of 48 women with ectopic pregnancies and in 8 (33%) of 24 undergoing tubal ligation (P = .01; odds ratio [OR], 3.6; 95% confidence interval [CI], 1.3-10.3). Plasma cell infiltration was correlated with C. trachomatis seropositivity among women with ectopic pregnancy (P = .005; OR, 7.2; 95% CI, 1.7-31) and among women undergoing tubal ligation (P = .008). Of 21 C. trachomatis-seropositive women with ectopic pregnancies, 19 had antibodies to the 57-kDa antigen compared with 1 of 4 seropositive women having tubal ligation (P = .008). Immune responses to the 57-kDa antigen may be involved in the immunopathogenesis of C. trachomatis-associated ectopic pregnancy.
authors.affiliation: Department of Medical Microbiology, University of Manitoba, Winnipeg, Canada.
authors.forename: R C
authors.initials: RC
authors.lastname: Brunham
authors.forename: R
authors.initials: R
authors.lastname: Peeling
authors.forename: I
authors.initials: I
authors.lastname: Maclean
authors.forename: M L
authors.initials: ML
authors.lastname: Kosseim
authors.forename: M
authors.initials: M
authors.lastname: Paraskevas
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000907:Antibodies, Bacterial / Q000097:blood; D016022:Case-Control Studies; D002690:Chlamydia Infections / Q000453:epidemiology / Q000382:microbiology* / Q000473:pathology; D002692:Chlamydia trachomatis / Q000276:immunology / Q000302:isolation & purification*; D005187:Fallopian Tubes / Q000473:pathology; D005260:Female; D006801:Humans; D015151:Immunoblotting; D007074:Immunoglobulin G / Q000097:blood; D009344:Neisseria gonorrhoeae / Q000302:isolation & purification; D010950:Plasma Cells; D011247:Pregnancy; D011271:Pregnancy, Ectopic / Q000453:epidemiology / Q000382:microbiology* / Q000473:pathology; D013246:Sterilization, Tubal
chemical_list: D000907:Antibodies, Bacterial; D007074:Immunoglobulin G