Comparative study of fertility parameters in vitrified human spermatozoa in the presence or absence of EmbryORP ® : A novel antioxidant
| Autor: | Ralf Henkel, Paulina Torres-Rodríguez, Israel Jiménez-Medina, Lina Gabriela Villar-Muñoz, Ashok Agarwal, Israel Maldonado-Rosas, César Rodrigo Coria-Gómez, Claudia L. Treviño |
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| Rok vydání: | 2021 |
| Předmět: |
chemistry.chemical_classification
Reactive oxygen species 030219 obstetrics & reproductive medicine Antioxidant Chemistry Urology medicine.medical_treatment 030232 urology & nephrology Motility Semen General Medicine Sperm Cryopreservation Andrology 03 medical and health sciences 0302 clinical medicine Endocrinology medicine Vitrification Acrosome |
| Zdroj: | Andrologia. 53 |
| ISSN: | 1439-0272 0303-4569 |
| Popis: | The cryopreservation of spermatozoa has the main purpose of preserving male fertility. However, current preservation techniques have shown to produce lesions in the structure and alter sperm functions, probably due to the production of reactive oxygen species (ROS) during cryopreservation. To overcome the damage provoked by ROS, we introduced a novel antioxidant called EmbryORP® in a vitrification protocol and compared eight fertility parameters: motility, viability, morphology, concentration, the semen pH, the oxidation-reduction potential (ORP), the spontaneous acrosomal reaction (AR) and the mitochondrial membrane potential (MMP), in the presence or absence of EmbryORP® . We analysed 20 samples from healthy human sperm donors and observed that the antioxidant significantly decreased the semen pH as well as the MMP and the ORP affecting the balance of ROS. The antioxidant also lowered the motility and viability of the cells, but preserved the acrosome and sperm morphology in general. We concluded that EmbryORP® lowered the ORP, but to a suboptimal level that may be harmful to spermatozoa. Despite these results, our work opens new perspectives on how to improve cryopreservation media. Therefore, we recommend exploring the EmbryORP® potential benefit by reducing its concentration or changing the exposure time during the cryopreservation protocol. |
| Databáze: | OpenAIRE |
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