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Effect of crocin and quercetin supplementation in cryopreservation medium on post-thaw human sperm quality

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Abstract

Biochemical and physical changes during the cryopreservation process adversely affect sperm function required for fertilization. Recently, many studies have been conducted to find effective pre-freezing treatments to limit these damages. The present study aimed to investigate the effects of pre-freezing treatment with quercetin and crocin, individually or in combination, on sperm parameters after thawing procedure. For this, semen samples from 20 normozoospermic men were collected and then each sample was divided into five equal parts: 1. fresh group 2. frozen–thawed group without addition of antioxidants 3. frozen–thawed group containing 1 mM crocin, 4. frozen–thawed group containing 50 μM quercetin, and 5. frozen–thawed group containing a combination of 1 mM crocin and 50 μM quercetin. Pre-cryopreservation and post-thaw sperm motility, morphology, viability, DNA fragmentation, reactive oxygen species [1] (ROS) levels, and mitochondrial membrane potential [2] (MMP) were investigated. Cryopreservation significantly reduced sperm quality. Both crocin and quercetin individually improved sperm progressive motility, decreased ROS levels, reduced DNA fragmentation, and marginally increased MMP, though crocin seems to be more successful in protecting sperm quality. More interestingly, the combined addition of crocin and quercetin to the sperm-freezing medium did not show positive effects on sperm quality. Crocin and quercetin may play a role in mitigating the cryopreservation-induced injury to sperm.

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The data that support the findings of this study are available from the corresponding author on reasonable request.

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Acknowledgements

The authors of this manuscript wish to express their appreciation to Hormozgan University of Medical Sciences, Bandar abbas, Iran.

Funding

This work was supported by the Hormozgan University of Medical Sciences grant for the accomplishment of the Doctor of Pharmacy thesis of Abedeh Mousavi [grant number: IR.HUMS.REC.1400.125.

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ES designed the research. ES, MO, EKA, AM, ASh and PS contributed in data collection, interpretation of data and manuscript writing/editing. ASh and AM wrote the manuscript. AM and MO assisted in the analysis of the data. All authors read and approved the final manuscript.

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Correspondence to Mahmoud Omidi.

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Salehi, E., Shadboorestan, A., Mohammadi-Bardbori, A. et al. Effect of crocin and quercetin supplementation in cryopreservation medium on post-thaw human sperm quality. Cell Tissue Bank (2023). https://doi.org/10.1007/s10561-023-10110-3

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  • DOI: https://doi.org/10.1007/s10561-023-10110-3

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