Related Experiment Video
Updated: Jun 21, 2026

Stable Isotope In-Vivo Labeling for Mass-Spectrometry Identification of Paternal Metabolites Transferred from Sperm to Oocyte During Fertilization
Published on: June 17, 2025
Transgenerational changes in somatic and germ line genetic integrity of first-generation offspring derived from the
Satish Kumar Adiga1, Dinesh Upadhya, Guruprasad Kalthur
1Division of Reproductive Medicine, Kasturba Medical College, Manipal University, Manipal, India. satish.adiga@manipal.edu
Objective:
To report a more quantitative approach to study the influence of varying levels of sperm DNA damage on transgenerational changes in genomic instability in a mouse model.
Design:
Experimental prospective study.
Setting:
Embryology research laboratory.
Animal(S):
Swiss albino mice.
Intervention(S):
The sperm DNA damage was induced by different doses of gamma-irradiation to male mice followed by mating with healthy female mice.
Main Outcome Measure(S):
Genomic integrity in embryos, fetus, and spermatozoa of F1 mice derived from the DNA-damaged sperm.
Result(S):
The transgenerational changes in genetic integrity were attributed by a dose-dependent increase in the frequency of micronuclei in preimplantation embryos and a concomitant increase in genomic instability in fetal liver cells and sperm chromatin modifications in F1 males. A strong positive correlation was observed between the extent of sperm DNA damage and somatic and germ-line genomic instability.
Conclusion(S):
Sperm-mediated transgenerational genomic instability is dependent on the amount of DNA damage present in the sire's sperm at the time of fertilization.
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