Seropositivity for the human heat shock protein (Hsp)60 accompanying seropositivity for Chlamydia trachomatis is less prevalent among tubal ectopic pregnancy cases than individuals with normal reproductive history.

Objectives: To investigate the role of anti-human heat shock protein 60 (hHsp60) antibody positivity in the pathogenesis of ectopic pregnancy, following Chlamydia trachomatis (CT) infection.

Study Design: In a case-control study, serological tests for anti-hHsp60 were performed in ectopic pregnancies (study group) and parturients with normal reproductive histories (control group). All participants in both groups were CT IgG(+).