Volume 65, Issue 3 (2 2007)                   Tehran Univ Med J 2007, 65(3): 72-77 | Back to browse issues page

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Khalili M B, Sharifi yazdi M K, Sadeh M. Correlation of H. pylori infection and infertility a survey in Yazd infertility clinic. Tehran Univ Med J. 2007; 65 (3) :72-77
URL: http://tumj.tums.ac.ir/article-1-822-en.html
Abstract:   (5347 Views)
Background: Infertility is a worldwide problem. Many different factors may cause infertility. Among them, bacterial infection of the reproductive system is one of the main factors. Recently, some limited investigation has revealed that H. pylori is capable of causing genital inflammation that may lead to infertility. Although known to be a causative agent of gastritis and duodenal ulcers, this species may be transferred orally to the vagina and asymptomatic infection leads to inflammation of the system and finally manifestation of infertility. In addition, infertility may be due to antibodies synthesized against H. pylori cross-reacting with the genital tissue.
Methods: In the present study, 180 women consisting of 90 cases referred to IVF center of Yazd and 90 matched controls were enrolled. Serum was taken from all women for detection of IgG and IgM using the ELISA technique.
Results: A total of 117 (65%) serum samples were positive for Helicobacter, of which 63.3% were from fertile and 66.7% from infertile women. The serum positive population was found to be predominantly in the age range of 25-35, although some 35-42 year olds were also serum positive. When the prevalence of Helicobacter infection status was compared with marriage duration in both groups, it was found that antibody titer in subjects from marriages with durations of greater than five years was significantly higher than those of five-year marriages. In addition, higher antibody titers were found in infertile women with fallopian tube (FT) factor and lower titers in those with polycystic factors.
Conclusion: Although the results were not significant, they nevertheless indicate that the Helicobacter antibody titers in infertile women were higher than those of fertile women (P =0.6). Therefore, further studies are necessary to determine the role that Helicobacter infection plays with regard to infertility among women. Since the antibody titer in infertile cases with FT factor was higher than others, it may indicate that inflammation caused by H. pylori plays an indirect role in the induction of infertility.
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