Hum. Reprod. Advance Access originally published online on January 21, 2005
Human Reproduction 2005 20(4):970-973; doi:10.1093/humrep/deh715
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Susceptibility to ovarian endometriosis in Polish population is not associated with HLA-DRB1 alleles
brzykowska2
gowska1
P
oski41 2nd Department of Gynaecology and Obstetrics, 2 Department of Clinical Immunology, Institute of Transplantology, Warsaw Medical University, PL-02004 Warsaw, Poland, 3 Division of Nuclear and Medical Electronics, Warsaw University of Technology, PL-00665 Warsaw, Poland, 4 Human Molecular Genetics Laboratory of Department of Forensic Medicine and Department of Childhood Diabetes and Birth Defects and 5 Laboratory for Molecular Cell Biology, Department of Histology and Embryology, Centre of Biostructure Research, Warsaw Medical University, PL-02004 Warsaw, Poland
6 To whom correspondence should be addressed at: Laboratory for Molecular Cell Biology, Department of Histology and Embryology, Centre of Biostructure Research, Warsaw Medical University, Cha
ubi
skiego 5, PL-02004 Warsaw, Poland. Email: jmalej{at}ib.amwaw.edu.pl
BACKGROUND: Endometriosis is associated with inflammatory autoimmune reactions; however, aetiopathogenesis of the disease is still poorly understood. While autoimmune disorders are often associated with particular HLA alleles, the possible involvement of HLA in the aetiopathogenesis of endometriosis is still a subject of controversy. The aim of the study was to examine the distribution of HLA-DRB1 alleles in women with endometriosis. To ensure homogeneity of the studied group, only women with ovarian endometrial cysts were included. METHODS: The study included 65 Polish patients of Caucasian origin in whom ovarian endometriosis had been confirmed by laparoscopic and histopathological examinations. HLA-DRB1 alleles were typed using a reverse slot blot method. A frequency of particular HLA-DRB1 alleles in patients was compared with that of a control group of 700 unrelated ethnically matched individuals as well as 193 age-matched women without endometriosis. RESULTS: No statistically significant differences were found in the distribution of HLA-DRB1 alleles in patients with ovarian endometriosis as compared with control populations. CONCLUSIONS: The results of the present study show that ovarian endometriosis is not associated with particular HLA-DRB1 allele(s). This may suggest that aetiology of this form of endometriosis may be not primarily associated with class II HLA-mediated autoimmune reactions.
Key words: autoimmunity/endometriosis/HLA-DRB1 alleles/major histocompatibility complex
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