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Barraza J, Cleofas P, Villamil S, García M, López A, Casas E, Salazar Z, Pichardo F, Barajas-Salinas A, Núñez-Macías E, Ramírez Y, Bonilla E, Bahena I, Ortíz-Muñíz R, Cortés-Barberena E, Betancourt M, Casillas F. In vitro exposure of porcine spermatozoa to methylparaben, and propylparaben, alone or in combination adversely affects sperm quality. J Appl Toxicol 2024. [PMID: 38862408 DOI: 10.1002/jat.4650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 04/22/2024] [Accepted: 05/18/2024] [Indexed: 06/13/2024]
Abstract
Parabens (PBs) are widely used in the cosmetic, pharmaceutical, and food industries as preservatives of products. Because of its great use, humans and other organisms are highly exposed daily. However, little is known about the effect of PBs on male infertility. Therefore, the aim of the present study was to evaluate the effect of methylparaben (MePB) and propylparaben (PrPB), alone or in combination, on the physiological characteristics of pig in vitro exposed sperm to different concentrations (0, 200, 500, and 700 μM) for viability, motility, and acrosome integrity evaluation and (0, 200, 500, 700, 1000, and 2000 μM) for DNA fragmentation index evaluation, after 4 h of exposure. The results showed that sperm viability decreased after exposure to MePB from the concentration of 500 μM. In the PrPB and mixture groups, viability decreased at all concentrations except for the control. The decrease in viability of sperm exposed to PrPB was greater than that of the mixture and MePB groups. Sperm motility decreased in all the experimental groups exposed to PBs, at all concentrations, except for the control group. Acrosome integrity was not decreased in the MePB group; however, in the PrPB group, it decreased at a concentration of 200 μM and in the mixture at 500 μM. All groups exhibited DNA damage at different concentrations, except for the control group. Additionally, the effect of PBs on sperm quality was concentration-dependent. The results demonstrated that MePB and PrPB alone or in combination can have adverse effects on sperm quality parameters. MePB had lower toxicity than did both PrPB and the mixture. The mixture did not have an additive effect on any of the parameters evaluated. This could partially explain the link between PB exposure and infertility.
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Affiliation(s)
- J Barraza
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
- Master's degree in Animal Reproduction Biology, Metropolitan Autonomous University-Iztapalapa Campus, Mexico City, Mexico
| | - P Cleofas
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - S Villamil
- Department of Biology of Reproduction, Metropolitan Autonomous University-Iztapalapa Campus, Mexico City, Mexico
| | - M García
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - A López
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - E Casas
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - Z Salazar
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - F Pichardo
- Department of Biology of Reproduction, Metropolitan Autonomous University-Iztapalapa Campus, Mexico City, Mexico
| | - A Barajas-Salinas
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - E Núñez-Macías
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - Y Ramírez
- Department of Biology of Reproduction, Metropolitan Autonomous University-Iztapalapa Campus, Mexico City, Mexico
| | - E Bonilla
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - I Bahena
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - R Ortíz-Muñíz
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - E Cortés-Barberena
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - M Betancourt
- Department of Health Sciences, Metropolitan Autonomous University-Iztapalapa, Campus, Mexico City, Mexico
| | - F Casillas
- Department of Biology of Reproduction, Metropolitan Autonomous University-Iztapalapa Campus, Mexico City, Mexico
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Breitbart H, Grinshtein E. Mechanisms That Protect Mammalian Sperm from the Spontaneous Acrosome Reaction. Int J Mol Sci 2023; 24:17005. [PMID: 38069328 PMCID: PMC10707520 DOI: 10.3390/ijms242317005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
To acquire the capacity to fertilize the oocyte, mammalian spermatozoa must undergo a series of biochemical reactions in the female reproductive tract, which are collectively called capacitation. The capacitated spermatozoa subsequently interact with the oocyte zona-pellucida and undergo the acrosome reaction, which enables the penetration of the oocyte and subsequent fertilization. However, the spontaneous acrosome reaction (sAR) can occur prematurely in the sperm before reaching the oocyte cumulus oophorus, thereby jeopardizing fertilization. One of the main processes in capacitation involves actin polymerization, and the resulting F-actin is subsequently dispersed prior to the acrosome reaction. Several biochemical reactions that occur during sperm capacitation, including actin polymerization, protect sperm from sAR. In the present review, we describe the protective mechanisms that regulate sperm capacitation and prevent sAR.
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Affiliation(s)
- Haim Breitbart
- The Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel
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