ArticleCurrent microbiology2022
Genetic Polymorphisms in MicroRNA-196a2 and the Risk of Human Abortion Related to Mycoplasma hominis.
Article in Current microbiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Mutations in some miRNAs are associated with human recurrent pregnancy loss (RPL). In parallel, Mycoplasma spp. are one of the most common infections in pregnant women. The objective of this study was to identify the relationship between miRNA196a-2 gene polymorphism and Mycoplasma hominis (M. hominis) infection as a possible cause of human abortion. A total of 160 cervical swab specimens were collected from women (80 samples with at least one abortion as case, and 80 samples without abortion as control). A PCR-based method using 16S rRNA gene and tetra primer amplification refractory mutation system-polymerase chain (Tetra-ARMS-PCR) were used to identify the presence of M. hominis infections and miRNA196a-2 genotypes of studied women, respectively. Results showed that 22.5% of women with abortion and 7.5% of women without abortion were infected with M. hominis, thereby suggesting a significant difference between the two groups (P < 0.05). Tetra-ARMSPCR indicated that no significant difference in frequency of genotypes existed between women experimenting abortion and control group. Independently to the presence of M. hominis infection, a significant difference (P < 0.05) was observed in genotypic frequencies of miRNA196a-2 between RPL women and those with one abortion. Estimation of the Odds Ratios indicated that the chance of recurrent abortions in TT genotypes of miRNA196a-2 was about three times more likely than CC in non-infected individuals and about five times more likely than CC in M. hominis-infected patients. Our results proposed the role of miRNA196a-2 genotypes in RPL either in M. hominis-infected or non-infected individuals.
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