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Human Reproduction, Vol. 18, No. 10, 2052-2057, October 2003
© 2003 European Society of Human Reproduction and Embryology

Mutagen sensitivity as a susceptibility marker for endometriosis

Jun Lin, Xinmei Zhang1 and Yulan Chen

Department of Gynecology, Women’s Hospital, Zhejiang University School of Medicine, Hangzhou 310006, Zhejiang, China

1 To whom correspondence should be addressed. e-mail: xinmei6{at}yahoo.com

BACKGROUND: The mutagen sensitivity assay has been well established and widely used as a good independent risk predictor for developing cancers. Although endometriosis is considered a benign disorder, it exhibits several features similar to malignancy. The objectives of this study were to evaluate whether mutagen sensitivity can predict the risk of endometriosis development. METHODS: The subjects were women undergoing different surgical procedures due to different stages of endometriosis. Bleomycin was used as a mutagen, and the mutagen sensitivity of peripheral lymphocytes from women with and without endometriosis was determined by measuring chromatid breaks induced by bleomycin in short-term culture using cytogenetic analysis. RESULTS: The mean ± SD (range) number of chromatid breaks per cell in women with and without endometriosis was 0.68 ± 0.12 (0.50–0.94) and 0.52 ± 0.10 (0.35–0.68), respectively. There was a significant difference with regard to mean chromatid breaks per cell between women with and without endometriosis (P < 0.001). On logistic regression analysis, the odds ratio (95% confidence interval) of chromatid breaks per cell was 5.80 (2.19–15.37, P < 0.001) for cases compared with controls. Yet, variables of interest including age, dysmenorrhoea, previous induced abortion and smoking in the home and workplace were not statistically correlated with chromatid breaks per cell. CONCLUSIONS: These preliminary data suggest that sensitivity to bleomycin-induced chromatid breaks in lymphocytes is associated with the risk of endometriosis development.

Key words: bleomycin/chromatid/cytogenetics/endometriosis susceptibility/mutagen sensitivity


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X. Zhang, P. Hei, L. Deng, and J. Lin
Interleukin-10 gene promoter polymorphisms and their protein production in peritoneal fluid in patients with endometriosis
Mol. Hum. Reprod., February 1, 2007; 13(2): 135 - 140.
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