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Ultrastructural comparison of human spermatozoa along a Percoll density gradient
C Barthèlèmy1, G Fricot, S Hamamah
1Unité de Reproduction, C.H.U. Bretonneau, Tours, France.
International Journal of Fertility
|November 1, 1992
Summary
Percoll gradient centrifugation processing for in vitro fertilization (IVF) is safe for sperm. Studies showed no negative impacts on sperm integrity, membranes, or DNA after processing, ensuring viable sperm for fertility treatments.
Area of Science:
- Reproductive biology
- Cell biology
- In vitro fertilization (IVF)
Background:
- Sperm preparation is crucial for assisted reproductive technologies.
- Percoll gradient centrifugation is a common sperm processing technique.
- Potential effects of processing on sperm quality require thorough investigation.
Purpose of the Study:
- To evaluate the potential deleterious effects of Percoll gradient centrifugation on human sperm integrity.
- To assess sperm morphology and viability after Percoll processing for IVF.
Main Methods:
- Analysis of 18 semen samples from patients in an IVF program.
- Utilized optical and transmission electron microscopy for detailed sperm evaluation.
- Employed nonparametric tests to compare sperm integrity before and after Percoll treatment.
Main Results:
- High recovery of motile and viable spermatozoa (32%) in the 100% Percoll layer.
- No significant differences in sperm membranes, acrosomes, or nuclei were observed post-Percoll treatment.
- No adverse effects of Percoll processing on spermatozoal integrity were detected.
Conclusions:
- Percoll gradient centrifugation processing does not appear to cause significant deleterious effects on human sperm.
- The technique effectively isolates motile and viable spermatozoa for IVF.
- Sperm integrity is maintained following Percoll processing, supporting its use in fertility treatments.