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Peña-Delgado V, Noya A, Carvajal-Serna M, Canto F, Sánchez MC, Letosa E, Vicente A, Morato I, Macías Á, Abecia JA, Casao A, Pérez-Pe R. Genotyping of rams based on melatonin receptor 1A gene polymorphisms: a tool in sire selection? Reprod Fertil Dev 2024; 36:RD23235. [PMID: 38753960 DOI: 10.1071/rd23235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 04/23/2024] [Indexed: 05/18/2024] Open
Abstract
Context Several polymorphisms in the melatonin receptor 1A gene (MTNR1A ) have been related to reproductive performance in ovine. Aims To investigate the effect of the Rsa I and Mnl I polymorphisms on ram seminal quality. Methods Eighteen Rasa Aragonesa rams were genotyped for the Rsa I (C/C, C/T, T/T) and Mnl I (G/G, G/A, A/A) allelic variants of the MTNR1A gene. Individual ejaculates were analysed once a month throughout the whole year. Sperm motility, morphology, membrane integrity, levels of reactive oxygen species (ROS), phosphatidylserine (PS) inversion, DNA fragmentation and capacitation status were assessed. The effect of the season and polymorphisms on seminal quality was evaluated by mixed ANOVA. Key results Both polymorphisms had an effect on membrane integrity and viable spermatozoa with low levels of ROS and without PS translocation, and Rsa I also on motile and DNA-intact spermatozoa. An interaction between both polymorphisms was found, pointing to a negative effect on seminal quality of carrying the T or A allele in homozygosity. Differences were higher in the reproductive than in the non-reproductive season. Conclusions Mutations substituting C by T and G by A at Rsa I and Mnl I polymorphic sites, respectively, in the MTNR1A gene in rams could decrease the seminal quality. Implications Genotyping of rams based on melatonin receptor 1A could be a powerful tool in sire selection.
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Affiliation(s)
- Victoria Peña-Delgado
- Grupo BIOFITER-IUCA, Universidad de Zaragoza, Facultad de Veterinaria, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Agustí Noya
- Grupo BIOFITER-IUCA, Universidad de Zaragoza, Facultad de Veterinaria, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Melissa Carvajal-Serna
- Grupo BIOFITER-IUCA, Universidad de Zaragoza, Facultad de Veterinaria, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Francisco Canto
- Grupo BIOFITER-IUCA, Universidad de Zaragoza, Facultad de Veterinaria, Miguel Servet 177, 50013 Zaragoza, Spain
| | - María Carmen Sánchez
- Centro de Selección y Reproducción Animal, Centro de Transferencia Agroalimentaria de Aragón, Barrio de Movera, 580, 50194 Zaragoza, Spain
| | - Eva Letosa
- Centro de Selección y Reproducción Animal, Centro de Transferencia Agroalimentaria de Aragón, Barrio de Movera, 580, 50194 Zaragoza, Spain
| | - Antonio Vicente
- Centro de Selección y Reproducción Animal, Centro de Transferencia Agroalimentaria de Aragón, Barrio de Movera, 580, 50194 Zaragoza, Spain
| | - Ignacio Morato
- Centro de Selección y Reproducción Animal, Centro de Transferencia Agroalimentaria de Aragón, Barrio de Movera, 580, 50194 Zaragoza, Spain
| | - Ángel Macías
- Asociación Nacional de Criadores de Rasa Aragonesa (ANGRA), Cabañera Real, s/n, 50800 Zuera, Spain
| | - José Alfonso Abecia
- Grupo BIOFITER-IUCA, Universidad de Zaragoza, Facultad de Veterinaria, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Adriana Casao
- Grupo BIOFITER-IUCA, Universidad de Zaragoza, Facultad de Veterinaria, Miguel Servet 177, 50013 Zaragoza, Spain
| | - Rosaura Pérez-Pe
- Grupo BIOFITER-IUCA, Universidad de Zaragoza, Facultad de Veterinaria, Miguel Servet 177, 50013 Zaragoza, Spain
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Parrilla Hernández S, Franck T, Munaut C, Feyereisen É, Piret J, Farnir F, Reigner F, Barrière P, Deleuze S. Characterization of Myeloperoxidase in the Healthy Equine Endometrium. Animals (Basel) 2023; 13:ani13030375. [PMID: 36766264 PMCID: PMC9913682 DOI: 10.3390/ani13030375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/18/2023] [Accepted: 01/18/2023] [Indexed: 01/24/2023] Open
Abstract
Myeloperoxidase (MPO), as a marker of neutrophil activation, has been associated with equine endometritis. However, in absence of inflammation, MPO is constantly detected in the uterine lumen of estrous mares. The aim of this study was to characterize MPO in the uterus of mares under physiological conditions as a first step to better understand the role of this enzyme in equine reproduction. Total and active MPO concentrations were determined, by ELISA and SIEFED assay, respectively, in low-volume lavages from mares in estrus (n = 26), diestrus (n = 18) and anestrus (n = 8) in absence of endometritis. Immunohistochemical analysis was performed on 21 endometrial biopsies randomly selected: estrus (n = 11), diestrus (n = 6) and anestrus (n = 4). MPO, although mostly enzymatically inactive, was present in highly variable concentrations in uterine lavages in all studied phases, with elevated concentrations in estrus and anestrus, while in diestrus, concentrations were much lower. Intracytoplasmic immunoexpression of MPO was detected in the endometrial epithelial cells, neutrophils and glandular secretions. Maximal expression was observed during estrus in mid and basal glands with a predominant intracytoplasmic apical reinforcement. In diestrus, immunopositive glands were sporadic. In anestrus, only the luminal epithelium showed residual MPO immunostaining. These results confirm a constant presence of MPO in the uterine lumen of mares in absence of inflammation, probably as part of the uterine mucosal immune system, and suggest that endometrial cells are a source of uterine MPO under physiological cyclic conditions.
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Affiliation(s)
- Sonia Parrilla Hernández
- Physiology of Reproduction, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | - Thierry Franck
- Center for Oxygen Research and development (CORD), University of Liège, 4000 Liège, Belgium
| | - Carine Munaut
- Laboratory of Tumor and Developmental Biology, GIGA-Cancer, University of Liège, 4000 Liège, Belgium
| | - Émilie Feyereisen
- Laboratory of Tumor and Developmental Biology, GIGA-Cancer, University of Liège, 4000 Liège, Belgium
| | - Joëlle Piret
- Department of Morphology and Pathology, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | - Frédéric Farnir
- Biostatistics and Bioinformatics Applied to Veterinary Sciences, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
| | | | | | - Stéfan Deleuze
- Physiology of Reproduction, Faculty of Veterinary Medicine, University of Liège, 4000 Liège, Belgium
- Equine and Companion Animal Reproduction, Veterinary Medicine Faculty, University of Liège, 4000 Liège, Belgium
- Correspondence:
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Fernández‐Alegre E, Lacalle E, Soriano‐Úbeda C, Carlos Domínguez J, Casao A, Martínez‐Pastor F. Melatonin affects red deer spermatozoa motility and physiology in capacitating and non-capacitating conditions. Reprod Domest Anim 2022; 57 Suppl 5:82-85. [PMID: 35488500 PMCID: PMC9790586 DOI: 10.1111/rda.14137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/07/2022] [Accepted: 04/25/2022] [Indexed: 12/30/2022]
Abstract
Melatonin affects sperm physiology, possibly through membrane receptors. Effects were tested at low concentrations (1 pM, 100 pM, 10 nM and 1 µM) in red deer epididymal spermatozoa as a model for high-seasonality species. Samples were incubated with melatonin as uncapacitated or capacitating conditions (heparin) and evaluated for motility and physiology (flow cytometry). Most effects occurred at low concentrations (nM-pM), mainly protecting from apoptosis and maintaining acrosomal integrity, suggesting a role for membrane receptors rather than a direct antioxidant effect. Intracellular calcium was not affected, differing from other studies and perhaps because of the epididymal origin. This study supports the relevance of melatonin on sperm physiology and could contribute to the application of reproductive technologies in wild ruminants.
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Affiliation(s)
| | | | - Cristina Soriano‐Úbeda
- Institute for Animal Health and Cattle Development (INDEGSAL) and IMAPOR Research GroupUniversidad de LeónLeónSpain,Department of Molecular Biology (Cell Biology)Universidad de LeónLeónSpain
| | - Juan Carlos Domínguez
- Institute for Animal Health and Cattle Development (INDEGSAL) and IMAPOR Research GroupUniversidad de LeónLeónSpain,Department of Animal Medicine, Surgery and Anatomy (Animal Medicine and Surgery)University of LeónLeónSpain
| | - Adriana Casao
- Department of Biochemistry and Molecular and Cell BiologyInstitute of Environmental Sciences of AragónSchool of Veterinary MedicineUniversity of ZaragozaZaragozaSpain
| | - Felipe Martínez‐Pastor
- Institute for Animal Health and Cattle Development (INDEGSAL) and IMAPOR Research GroupUniversidad de LeónLeónSpain,Department of Molecular Biology (Cell Biology)Universidad de LeónLeónSpain
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