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Updated: May 8, 2026

Flow Cytometric Analysis of Biomarkers for Detecting Human Sperm Functional Defects
Published on: April 21, 2022
Iatrogenic genetic damage of spermatozoa
1Division of Urology, Department of Surgery, McGill University and the Research Institute- McGill University Health Centre, Royal Victoria Hospital, room H6.46, 687 Avenue des Pins Ouest, Montréal, Québec, H3A 1A1, Canada, cristian.oflaherty@mcgill.ca.
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Various factors that negatively influence male fertility can affect sperm morphology and physiology. Many studies on humans and animals suggest that both radiation and chemotherapy alter the sperm chromatin, inducing significant damage to sperm DNA, and decrease the level of protamination, thereby altering DNA compaction. Spermatozoa from cancer survivors are affected by chemotherapy even years after the end of treatment. We are exposed to various toxicants present in the environment (e.g., products of air pollution, pesticides, and plasticizers) whose impact on human male reproduction has not yet been established.This chapter aims to update our knowledge on how the sperm chromatin structure is modified by external agents and to describe the different strategies available to better study this complex structure in infertile men.
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