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- W4387396578 abstract "Infertility is a widespread issue in industrialized countries whose etiology is still elusive in a significant percentage of cases. Epigenetics, consisting of molecular changes (including methylation) that modulate gene expression, can be a possible cause of male infertility and represent an aid in the diagnostic process. The mesoderm-specific transcription (MEST) gene is a paternally expressed imprinted gene that, among others, appears to play a role in embryo survival. Data are available on the methylation pattern of the MEST gene in spermatozoa of infertile patients. The latest meta-analysis on this topic was published in 2017 and showed that the methylation pattern of this gene is significantly higher in spermatozoa from infertile or oligozoospermic patients than in fertile or normozoospermic controls. Therefore, the present study aimed to provide an updated and comprehensive systematic review and meta-analysis of the MEST gene methylation pattern in patients with abnormal sperm parameters compared to men with normal parameters. This meta-analysis was registered in PROSPERO (n. 397056) and performed following the MOOSE guidelines for Meta-analyses and Systematic Reviews of Observational Studies and the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocols (PRISMA-P). Only original articles evaluating MEST gene methylation in spermatozoa from patients with infertility or abnormalities in one or more sperm parameters compared to fertile or normozoospermic men were included. Of the 354 abstracts evaluated for eligibility, only 6 studies were included in the quantitative synthesis, involving a total of 301 patients and 163 controls. Our analysis showed significantly higher levels of MEST gene methylation in patients compared with controls (SMD 2.150, 95% CI 0.377, 3.922, p = 0.017), although there was significant heterogeneity between studies (Q-value = 239.90, p-value 0; I2 = 97.91%). No significant evidence of publication bias was found, although one study was sensitive enough to skew the results, leading to a loss of significance (SMD 1.543, 95% CI -0.300, 3.387, p = 0.062). In meta-regression analysis, we found that the results were independent of both age (p= 0.6519) and sperm concentration (p= 0.2360). The results of this systematic review and meta-analysis showed that the methylation pattern of the MEST gene appears to be related to the quality of sperm parameters, without being influenced by age and sperm concentration. Although its role in male infertility remains to be elucidated, sperm DNA methylation may be associated with epigenetic risk in assisted reproductive techniques (ART)." @default.
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- W4387396578 date "2023-10-01" @default.
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- W4387396578 title "SPERM MESODERM SPECIFIC TRANSCRIPT GENE METHYLATION STATUS IN INFERTILE PATIENTS: A SYSTEMATIC REVIEW AND META-ANALYSIS" @default.
- W4387396578 doi "https://doi.org/10.1016/j.fertnstert.2023.08.123" @default.
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