Advances in Clinical and Experimental Medicine
2010, vol. 19, nr 4, July-August, p. 437–441
Publication type: original article
Language: English
The Diagnostic Importance of Detecting Chlamydia Trachomatis Antigen and Anti-IgG Anti-cHSP60 Antibodies in Infertile Women
Znaczenie diagnostyczne wykrywania antygenu Chlamydia trachomatis i przeciwciał IgG anty cHSP60 u niepłodnych kobiet
1 Department of Basic Sciences, Faculty of Health Sciences, Wroclaw Medical University, Poland
Abstract
Background. Clinical forms of chlamydia infection in women are inflammation of the urethra, urethral syndrome, cervicitis, inflammation of the rectum, and conjunctivitis. Persistence of Chlamydia trachomatis infection leads to an increased production of the 60-kDa chlamydial heat-shock protein (cHSP60).
Objectives. The aim of this study was to assess the diagnostic value and usefulness of the cHSP60-IgG-ELISA test and to determine the prevalence of IgG anti-cHSP60 antibodies in infertile women according to age groups.
Material and Methods. The study group consisted of 108 women with primary (n = 91; 84.3%) and secondary (n = 17; 15.7%) infertility. The control group (n = 37) consisted of women without any complaints of the urogenital tract. C. trachomatis antigen was determined in cervical smears by the direct immunofluorescence Pathfinder® Chlamydia trachomatis Direct Specimen test from Bio-Rad. IgG anti-cHSP60 antibodies were determined in the serum using the cHSP60-IgG-ELISA test from medac.
Results. The 108 cervical swabs of the women being treated due to infertility were labeled by direct immunofluorescence (DIF); a positive test result was noted in 41 (37.9%) patients. Serum from the 108 was assessed by ELISA and IgG anti-cHSP60 antibodies were found in 17 (15.7%). In the control group, positive results of the C. trachomatis test were found in 18.9% of the women by DIF and IgG anti-cHSP60 antibodies were found in the serum of 5 (15.6%).
Conclusion. Serological tests may only supplement bacteriological tests and have some value in epidemiological studies. However, they should not be used as an alternative to bacteriological examination.
Streszczenie
Wprowadzenie. Kliniczne postacie zakażeń Chlamydia trachomatis u kobiet to zapalenie cewki moczowej i zespół cewkowy, zapalenie szyjki macicy, odbytu oraz zapalenie spojówek. Przetrwałe zakażenie chlamydią skutkuje wzrostem wydzielania cHSP60 (chlamydialnego białka szoku termicznego o masie 60 kDa).
Cel pracy. Ocena wartości i przydatności diagnostycznej testu cHSP60-IgG-ELISA oraz określenie występowania przeciwciał IgG anty cHSP60 u niepłodnych kobiet z uwzględnieniem grup wiekowych.
Materiał i metody. Grupę badaną stanowiło 108 kobiet, u których zdiagnozowano niepłodność pierwotną (n = 91; 84,3%) lub niepłodność wtórną (n = 17; 15,7%). Grupę kontrolną stanowiły kobiety (n = 37) bez dolegliwości ze strony układu moczowo-płciowego, które zgłaszały się do poradni ginekologicznej w celu wykonania rutynowych badań profilaktycznych. Do badania antygenów C. trachomatis w wymazach z cewki moczowej i szyjki macicy metodą immunofluorescencji bezpośredniej (DIF – direct immunofluorescence) zastosowano test Pathfinder® Chlamydia trachomatis Direct Specimen, firmy Biorad. Do wykrywania przeciwciał w surowicy krwi badanych zastosowano test cHSP60-IgG-ELISA firmy medac.
Wyniki. Antygen Chlamydia trachomatis wykrywano metodą immunofluorescencji bezpośredniej (DIF) w 108 wymazach z kanału szyjki macicy; wyniki dodatnie uzyskano u 41 (37,9%) kobiet. 108 surowic badano z użyciem techniki ELISA i przeciwciała IgG anty-cHSP60 wykryto u 17 (15,7%). W grupie kontrolnej pozytywne wyniki badań w kierunku C. trachomatis uzyskano w 18,9% kobiet techniką DIF, a przeciwciała IgG anty-cHSP60 wykryto w surowicy 5 (15,6%) pacjentek.
Wnioski. Testy serologiczne mogą stanowić uzupełnienie testów bakteriologicznych, mają wartość epidemiologiczną. Nie powinny być jednak alternatywą standardowych badań bakteriologicznych.
Key words
Chlamydia trachomatis, IgG anti cHSP60
Słowa kluczowe
Chlamydia trachomatis, IgG anty cHSP60
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