Cross-reactivity between Chlamydia trachomatis heat shock protein 10 and early pregnancy factor.

Chlamydia trachomatis heat shock protein 10 (Chsp10) is associated with chronic genital tract infection with C. trachomatis. Chsp10 is homologous to human chaperonin 10 (Cpn10) and early pregnancy factor (EPF), a form of human Cpn10 that is specifically secreted at the start of pregnancy.

Anti-Chlamydia pneumoniae heat shock protein 10 antibodies in asthmatic adults.

A multicenter prospective study was performed on 160 asthmatic adults suffering from acute episodes of bronchitis and 88 non-asthmatic controls, to investigate potential associations among Chlamydia pneumoniae infection and/or anti-C. pneumoniae heat shock protein 10 antibodies, and asthma. We used micro-immunofluorescence to detect serum anti-C.

Construction and evaluation of internal control DNA for PCR amplification of Chlamydia trachomatis DNA from urine samples.

An internal control DNA (ICD) with the same primer binding sequences as the target Chlamydia trachomatis DNA was constructed and evaluated in a PCR assay with immunoenzymatic detection. One hundred urine specimens were tested, and 23 were found to contain inhibitors of the PCR, if not subjected to DNA extraction prior to amplification. Coamplification and detection of the ICD appeared to be a useful method for estimating the effects of inhibitors on C.

[Chlamydia pneumoniae and acute respiratory tract infections in breast-feeding infants: simultaneous mother-child serological study in Niamey (Niger)].

The age and the origin of Chlamydia pneumoniae primary infection in Sahelian areas are unknown. To evaluate the prevalence of C. pneumoniae antibodies, the authors studied the serological status of C.