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Genetic research

Research Reveals Link Between Sperm DNA Fragmentation and PLCz Deficiency in Infertile Patients

Strategic Insights

— 1 min read

A team of researchers from the Faculty of Medicine in Casablanca, Morocco, has published a study exploring the relationship between sperm DNA fragmentation, chromatin decondensation, and PLCz deficiency in infertile patients. The study, published in Current Issues in Molecular Biology, aimed to investigate the efficacy of PLCz in patients experiencing oocyte fertilization failure following intracytoplasmic sperm injection (ICSI). The researchers collected semen samples from 135 patients, including 65 fertile men and 70 infertile patients, to analyze concentration, motility, and morphology.

Key Takeaways:

  • The study found that the proportion of spermatozoa presenting PLCz was significantly lower in infertile patients (18.41 ± 18.84%) compared to fertile controls (67.31 ± 13.79%) (* * p*
  • DNA fragmentation and chromatin decondensation were associated with alterations in the localization patterns and reduced protein levels of PLCz.
  • The study suggests that PLCz deficiency may contribute to total fertilization failure in infertile patients.
  • The research team found that the PLCz protein levels were assessed by immunofluorescence and quantitative techniques, DNA fragmentation by TUNEL assay, and chromatin decondensation by aniline blue staining.
  • The study involved a total of 135 patients, including 65 fertile men and 70 infertile patients.

Statistics:

  • 135 patients participated in the study.
  • 65 fertile men and 70 infertile patients were included in the study.
  • The proportion of spermatozoa presenting PLCz was 18.41 ± 18.84% in infertile patients and 67.31 ± 13.79% in fertile controls.
  • The researchers used immunofluorescence and quantitative techniques to assess PLCz protein levels, TUNEL assay to measure DNA fragmentation, and aniline blue staining to evaluate chromatin decondensation.

Sources:

  • NewsRx. Research on Nucleoproteins Published by Researchers at Faculty of Medicine (Effect of Sperm DNA Fragmentation and Chromatin Decondensation on PLCz Efficacy in Infertile Patients). Life Science Weekly. October 14, 2025; p 5528.
  • Current Issues in Molecular Biology, 2025, 47(9):707.

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