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Cardenas-Padilla AJ, Jimenez-Trejo F, Cerbon M, Chavez-Garcia A, Cruz-Cano NB, Martinez-Torres M, Alcantar-Rodriguez A, Medrano A. Sperm melatonin receptors, seminal plasma melatonin and semen freezability in goats. Theriogenology 2024; 225:98-106. [PMID: 38801791 DOI: 10.1016/j.theriogenology.2024.05.034] [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: 02/08/2024] [Revised: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Goat bucks are seasonal breeders that show variation in sperm quality, endogenous melatonin (MLT), and presumably in the expression of MLT receptors on the sperm throughout the year, which may modify sperm freezability. The aim of this study was to determine whether sperm freezability is associated with (i) endogenous melatonin levels in seminal plasma and (ii) the expression of sperm plasma membrane melatonin receptors (MT1, MT2). To evaluate this, spermatozoa from seven Saanen goat bucks were cryopreserved throughout the year in Mexico using a standard freezing protocol. Seminal plasma MLT concentrations were determined by ELISA and the expression and localization of MT1 and MT2 were detected by immunocytochemistry and confirmed by western blotting. The recovery rate of progressive motility after thawing was higher in spring than autumn and winter; in contrast, the F pattern (CTC assay) was higher in winter than in the other seasons. A proportional increase in the AR pattern (CTC assay) was smaller in winter than in the other seasons and the proportion of sperm showing high plasma membrane fluidity was higher in spring than in summer and autumn. The seminal plasma MLT concentrations showed no significant interseasonal differences. The MT1 receptor was immunolocalised at the apical region of the sperm head, while MT2 was mainly localised in the neck. The relative expression of MLT receptors showed significant differences between summer and winter for all bands, except at 75 kDa of MT2. In conclusion, there was an association between the relative expression of MT1 and MT2 receptors throughout the year and sperm freezability in goat bucks in México. Post-thaw sperm quality is enhanced in semen samples collected during breeding season.
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Affiliation(s)
- Alberto J Cardenas-Padilla
- Laboratorio de Reproducción Animal, Unidad de Investigación Multidisciplinaria, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, 54714, Estado de México, Mexico.
| | | | - Marco Cerbon
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Coyoacán, 04510, Ciudad de México, Mexico.
| | - Araceli Chavez-Garcia
- Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, Coyoacán, 04510, Ciudad de México, Mexico.
| | - Norma B Cruz-Cano
- Laboratorio de Biología de la Reproducción, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, 54090, Estado de México, Mexico.
| | - Martin Martinez-Torres
- Laboratorio de Biología de la Reproducción, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autónoma de México, Tlalnepantla, 54090, Estado de México, Mexico.
| | - Alicia Alcantar-Rodriguez
- Laboratorio de Reproducción Animal, Unidad de Investigación Multidisciplinaria, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, 54714, Estado de México, Mexico.
| | - Alfredo Medrano
- Laboratorio de Reproducción Animal, Unidad de Investigación Multidisciplinaria, Facultad de Estudios Superiores Cuautitlán, Universidad Nacional Autónoma de México, Cuautitlán Izcalli, 54714, Estado de México, Mexico.
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Lavrentiadou SN, Sapanidou V, Tzekaki EE, Margaritis I, Tsantarliotou MP. Melatonin Protects Bovine Spermatozoa by Reinforcing Their Antioxidant Defenses. Animals (Basel) 2023; 13:3219. [PMID: 37893943 PMCID: PMC10603642 DOI: 10.3390/ani13203219] [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: 08/31/2023] [Revised: 10/07/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Cryopreserved semen is widely used in assisted reproductive techniques. Post-thawing spermatozoa endure oxidative stress due to the high levels of reactive oxygen and nitrogen species, which are produced during the freezing/thawing process, and the depletion of antioxidants. To counteract this depletion, supplementation of sperm preparation medium with antioxidants has been widely applied. Melatonin is a hormone with diverse biological roles and a potent antioxidant, with an ameliorative effect on spermatozoa. In the present study, we assessed the effect of melatonin on thawed bovine spermatozoa during their handling. Cryopreserved bovine spermatozoa were thawed and incubated for 60 min in the presence or absence of 100 μΜ melatonin. Also, the effect of melatonin was assessed on spermatozoa further challenged by the addition of 100 μΜ hydrogen peroxide. Spermatozoa were evaluated in terms of kinematic parameters (CASA), viability (trypan blue staining) and antioxidant capacity (glutathione and NBT assay, determination of iNOS levels by Western blot analysis). In the presence of melatonin, spermatozoa presented better kinematic parameters, as the percentage of motile and rapid spermatozoa was higher in the melatonin group. They also presented higher viability and antioxidant status, as determined by the increased cellular glutathione levels and the decreased iNOS protein levels.
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Affiliation(s)
- Sophia N. Lavrentiadou
- Laboratory of Physiology, Department of Animal Structure and Function, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (V.S.); (I.M.); (M.P.T.)
| | - Vasiliki Sapanidou
- Laboratory of Physiology, Department of Animal Structure and Function, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (V.S.); (I.M.); (M.P.T.)
| | - Elena E. Tzekaki
- Laboratory of Biochemistry, Department of Chemistry, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece;
| | - Ioannis Margaritis
- Laboratory of Physiology, Department of Animal Structure and Function, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (V.S.); (I.M.); (M.P.T.)
| | - Maria P. Tsantarliotou
- Laboratory of Physiology, Department of Animal Structure and Function, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (V.S.); (I.M.); (M.P.T.)
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Özgen M, Take G, Kaplanoğlu İ, Erdoğan D, Seymen CM. Therapeutic effects of melatonin in long-term exposure to 2100MHz radiofrequency radiation on rat sperm characteristics. Rev Int Androl 2023; 21:100371. [PMID: 37413938 DOI: 10.1016/j.androl.2023.100371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 10/15/2022] [Indexed: 07/08/2023]
Abstract
INTRODUCTION Radiofrequency electromagnetic fields (RF-EMFs) are one of the risk factors for male reproductive health and melatonin can be an ideal candidate for therapeutic development against RF-induced male fertility problems due to its antioxidant properties. The possible therapeutic role of melatonin in the destructive effects of 2100MHz RF radiation on rat sperm characteristics is investigated in the present study. METHODS Wistar albino rats were divided into four groups and the experiment continued for ninety consecutive days; Control, Melatonin (10mg/kg, subcutaneously), RF (2100MHz, thirty minutes per day, whole-body), and RF+Melatonin groups. Left caudal epididymis and ductus deferens tissues were placed in sperm wash solution (at 37°C) and dissected. The sperms were counted and stained. Measurements of the perinuclear ring of the manchette and posterior portion of the nucleus (ARC) were performed and the sperms were examined at an ultrastructural level. All of the parameters were evaluated statistically. RESULTS The percentages of abnormal sperm morphology were significantly increased with RF exposure, while the total sperm count was significantly decreased. RF exposure also showed harmful effects on acrosome, axoneme, mitochondrial sheath, and outer dense fibers at the ultrastructural level. The number of total sperms, sperms with normal morphology increased, and ultrastructural appearance returned to normal by melatonin administration. DISCUSSION The data showed that melatonin may be a beneficial therapeutic agent for long-term exposure of 2100MHz RF radiation-related reproductive impairments.
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Affiliation(s)
- Meltem Özgen
- Gazi University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Gülnur Take
- Gazi University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - İskender Kaplanoğlu
- Sağlık Bilimleri University, Etlik Zübeyde Hanım Women's Health Teaching and Research Hospital, Center of Assisted Reproduction, Ankara, Turkey
| | - Deniz Erdoğan
- Gazi University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey
| | - Cemile Merve Seymen
- Gazi University Faculty of Medicine, Department of Histology and Embryology, Ankara, Turkey.
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Sapanidou V, Tsantarliotou MP, Lavrentiadou SN. A review of the use of antioxidants in bovine sperm preparation protocols. Anim Reprod Sci 2023; 251:107215. [PMID: 37001221 DOI: 10.1016/j.anireprosci.2023.107215] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/28/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
Reactive oxygen species (ROS) and oxidative stress (OS), the imbalance between the production of free radicals and the cellular antioxidant defenses, are discussed in relation to their role in bovine sperm physiology. Oxidative stress has been associated to male infertility and low fertility rates in Assisted Reproductive Techniques (ART). Antioxidant supplementation is an interesting approach to overcome OS-related infertility and assisted reproduction drawbacks. Several studies have been conducted to identify the potential sources of ROS in a typical ART setting and the impact of antioxidant supplementation on semen quality and pregnancy outcome. Procedures such as freezing and thawing, centrifugation and incubation are thought to produce significant amounts of ROS with a negative impact on sperm quality parameters and reproductive competence. Given the important role of ROS in sperm function, the addition of antioxidants in sperm media to prevent OS and to improve the reproductive outcome requires attention. Currently, there is limited evidence to support the ameliorative effect of antioxidant supplementation on fertilization and embryo development in farm animals. This review summarizes the different types and concentrations of antioxidants used in sperm preparation media of bovine species and their effectiveness in neutralizing excessive ROS production while preserving physiological sperm function.
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Cosme P, Rodríguez AB, Garrido M, Espino J. Coping with Oxidative Stress in Reproductive Pathophysiology and Assisted Reproduction: Melatonin as an Emerging Therapeutical Tool. Antioxidants (Basel) 2022; 12:antiox12010086. [PMID: 36670948 PMCID: PMC9854935 DOI: 10.3390/antiox12010086] [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: 11/14/2022] [Revised: 12/24/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022] Open
Abstract
Infertility is an increasing global public health concern with socio-psychological implications for affected couples. Remarkable advances in reproductive medicine have led to successful treatments such as assisted reproductive techniques (ART). However, the search for new therapeutic tools to improve ART success rates has become a research hotspot. In the last few years, pineal indolamine melatonin has been investigated for its powerful antioxidant properties and its role in reproductive physiology. It is considered a promising therapeutical agent to counteract the detrimental effects associated with oxidative stress in fertility treatments. The aim of the present narrative review was to summarize the current state of the art on the importance of melatonin in reproductive physiology and to provide a critical evaluation of the data available encompassing basic, translational and clinical studies on its potential use in ART to improve fertility success rates.
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Affiliation(s)
| | | | - María Garrido
- Correspondence: (M.G.); (J.E.); Tel.: +34-924289796 (M.G. & J.E.)
| | - Javier Espino
- Correspondence: (M.G.); (J.E.); Tel.: +34-924289796 (M.G. & J.E.)
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Mandal DK, Kumar M, Tyagi S. Effect of seasons and photoperiods on seminal attributes and sperm morphology in Holstein Friesian × Sahiwal crossbred dairy bulls. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2022; 66:2223-2235. [PMID: 35994121 DOI: 10.1007/s00484-022-02350-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 06/27/2022] [Accepted: 08/12/2022] [Indexed: 06/15/2023]
Abstract
Cattle being non-seasonal breeding species, effects of photoperiods on sperm traits and morphology had been reported inadequately in breeding bulls. To elucidate the plausible existence of effects of photoperiods and seasons, seminal traits of Holstein Friesian × Sahiwal crossbred dairy bulls (N = 557) were analysed using different statistical models. A present study revealed that the biological rhythm of reproduction oscillated almost in parallel to the annual changes of natural photoperiods even in non-seasonal breeding species like cattle bulls. Semen traits diminished to the lowest in winter solstice (WS ± 45 days), progressively increased with the rising day length of spring (vernal equinox ± 45 days), reached a peak in summer solstice (SS ± 45 days), and then gradually reduced with decreasing photoperiod of the autumn equinox (AE ± 45 days). From summer solstice to winter solstice, sperm concentration reduced by 90.53 million/ml (8.85%), total sperm count/ejaculate decreased by 785 million (13.87%), total motile sperm count/ejaculate reduced by 17.59%, and total post-thaw motile sperm counts/ejaculates diminished by 38.64%. In short-duration photoperiods (≤ 12 h), bulls had a significantly (P < 0.01) higher incidence of major, minor, tail abnormality and total aberrant sperm% compared to that of long-duration photoperiods (> 12 h). Solstice equinox-based seasonal classification provided better insight into photoperiodicity on bulls' semen quality and sperm traits as compared to conventional meteorological classification of seasons. It was concluded that photoperiods affect sperm productivity, semen quality, and sperm morphology in non-seasonal breeding species like dairy bulls, maintained at transitional latitude (29° N) tropical climate. Bulls' reproductive ability was more influenced by the phases of increasing/decreasing day length duly primed by climax/trough of photoperiods, compared to mere long/short duration of photoperiods.
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Affiliation(s)
- Dilip Kumar Mandal
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal, 741235, India.
| | - Mahesh Kumar
- ICAR-Central Institute for Research On Cattle, Grass Farm Road, Meerut Cantt, Uttar Pradesh, India
| | - Shrikant Tyagi
- ICAR-Central Institute for Research On Cattle, Grass Farm Road, Meerut Cantt, Uttar Pradesh, India
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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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Mitjana O, Ausejo R, Mendoza N, Miguel J, Tejedor MT, Garrido AM, Falceto MV. Photoperiod and Melatonin Supplementation: Variable Effects on the Quality of Chilled Dog Semen. Front Vet Sci 2022; 9:956630. [PMID: 35903132 PMCID: PMC9317747 DOI: 10.3389/fvets.2022.956630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 06/14/2022] [Indexed: 11/24/2022] Open
Abstract
The addition of melatonin in seminal extenders due to its antioxidant properties and its beneficial role in sperm preservation has been previously described, especially in seasonal species. The aim of this study was to study a potential seasonal effect based on photoperiod duration when adding a physiological concentration of melatonin in the canine ejaculate. A total of 24 ejaculates were obtained from 10 healthy dogs during the increasing photoperiod (from December 21 to June 21), whereas 12 ejaculates were collected from five healthy individuals during the decreasing photoperiod (from June 22 to December 20). Each ejaculate was separated into two aliquots, and one of them remained as a control, whereas melatonin (100 pM) was added to the other one (C and M treatment groups, respectively). Diluted semen was refrigerated at 5°C. On days 0, 1, 2, 3, and 6, sperm motility analyses were performed using a CASA system and hypoosmotic swelling test (HOST), osmotic resistance test (ORT), and flow cytometry analysis. No effect of melatonin on motility was detected in either photoperiod. Negative effects of melatonin were found for acrosomal defects, apoptosis, and viability in the decreasing photoperiod. The addition of melatonin to sperm in the decreasing photoperiod could create such a high level that it would cause the described negative effects. We found a beneficial effect of melatonin in the increasing photoperiod on acrosomal defects and apoptosis during 0–6 days. Melatonin treatment also increased viability in the short term (days 1 and 2) for both photoperiods. Also, melatonin can provide certain beneficial effects on mitochondrial activity in the medium term (days 2 and 3) in the decreasing photoperiod.
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Affiliation(s)
- Olga Mitjana
- Agroalimentary Institute of Aragon-IA2, Department of Animal Pathology, Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Raquel Ausejo
- Department of Biotechnology R&D, Magapor S.L., Ejea de los Caballeros, Spain
- Department of Animal Pathology, Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Noelia Mendoza
- Department of Biotechnology R&D, Magapor S.L., Ejea de los Caballeros, Spain
| | - Joaquin Miguel
- Department of Biotechnology R&D, Magapor S.L., Ejea de los Caballeros, Spain
| | - Maria Teresa Tejedor
- Department of Anatomy, Embryology and Animal Genetics, CiberCV, Universidad de Zaragoza, Zaragoza, Spain
- *Correspondence: Maria Teresa Tejedor
| | - Ana Maria Garrido
- Department of Animal Pathology, Universidad de Zaragoza-CITA, Zaragoza, Spain
| | - Maria Victoria Falceto
- Agroalimentary Institute of Aragon-IA2, Department of Animal Pathology, Universidad de Zaragoza-CITA, Zaragoza, Spain
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Fernández-Alegre E, Lacalle E, Soriano-Úbeda C, González-Montaña JR, Domínguez JC, Casao A, Martínez-Pastor F. Bos taurus and Cervus elaphus as Non-Seasonal/Seasonal Models for the Role of Melatonin Receptors in the Spermatozoon. Int J Mol Sci 2022; 23:ijms23116284. [PMID: 35682961 PMCID: PMC9181011 DOI: 10.3390/ijms23116284] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 05/28/2022] [Accepted: 06/01/2022] [Indexed: 02/04/2023] Open
Abstract
Melatonin is crucial in reproduction due its antioxidant, hormonal, and paracrine action. Melatonin membrane receptors (MT1/MT2) have been confirmed on spermatozoa from several species, but functionality studies are scarce. To clarify their role in ruminants as reproductive models, bull (Bos taurus, non-seasonal) and red deer (Cervus elaphus, highly seasonal) spermatozoa were analyzed after 4 h of incubation (38 °C, capacitating media) in 10 nM melatonin, MT1/MT2 agonists (phenylmelatonin and 8M-PDOT), and antagonists (luzindole and 4P-PDOT). Motility and functionality (flow cytometry: viability, intracellular calcium, capacitation status, reactive oxygen species (ROS) production, and acrosomal and mitochondrial status) were assessed. In bull, MT1 was related to sperm viability preservation, whereas MT2 could modulate cell functionality to prevent excess ROS produced by the mitochondria; this action could have a role in modulating sperm capacitation. Deer spermatozoa showed resistance to melatonin and receptor activation, possibly because the samples were of epididymal origin and collected at the breeding season's peak, with high circulating melatonin. However, receptors could be involved in mitochondrial protection. Therefore, melatonin receptors are functional in the spermatozoa from bull and deer, with different activities. These species offer models differing from traditional laboratory experimental animals on the role of melatonin in sperm biology.
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Affiliation(s)
- Estela Fernández-Alegre
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Bianor Biotech SL, 24071 Leon, Spain
| | - Estíbaliz Lacalle
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Bianor Biotech SL, 24071 Leon, Spain
| | - Cristina Soriano-Úbeda
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Department of Molecular Biology (Cell Biology), University of León, 24071 Leon, Spain
| | - José Ramiro González-Montaña
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Department of Medicine, Surgery and Veterinary Anatomy (Animal Medicine and Surgery), University of León, 24071 Leon, Spain
| | - Juan Carlos Domínguez
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Department of Medicine, Surgery and Veterinary Anatomy (Animal Medicine and Surgery), University of León, 24071 Leon, Spain
| | - Adriana Casao
- Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón, School of Veterinary Medicine, University of Zaragoza, 50013 Zaragoza, Spain;
| | - Felipe Martínez-Pastor
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 Leon, Spain; (E.F.-A.); (E.L.); (C.S.-Ú.); (J.R.G.-M.); (J.C.D.)
- Department of Molecular Biology (Cell Biology), University of León, 24071 Leon, Spain
- Correspondence: ; Tel.: +34-987-291-491
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Coenzyme Q10 and Melatonin Protect Cryopreserved Equine Sperm Against Lipoperoxidation. Anim Reprod Sci 2022; 243:107027. [DOI: 10.1016/j.anireprosci.2022.107027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/19/2022] [Accepted: 06/13/2022] [Indexed: 11/22/2022]
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Shahat AM, Thundathil JC, Kastelic JP. AMelatonin or arginine in semen extender mitigate reductions in quality of frozen-thawed sperm from heat-stressed rams. Anim Reprod Sci 2022; 238:106934. [DOI: 10.1016/j.anireprosci.2022.106934] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 01/11/2022] [Accepted: 01/21/2022] [Indexed: 12/16/2022]
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Role of Antioxidants in Cooled Liquid Storage of Mammal Spermatozoa. Antioxidants (Basel) 2021; 10:antiox10071096. [PMID: 34356329 PMCID: PMC8301105 DOI: 10.3390/antiox10071096] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/30/2021] [Accepted: 07/02/2021] [Indexed: 12/20/2022] Open
Abstract
Cooled preservation of semen is usually associated with artificial insemination and genetic improvement programs in livestock species. Several studies have reported an increase in reactive oxidative species and a decrease in antioxidant substances and sperm quality parameters during long-term semen storage at refrigerated temperatures. The supplementation of antioxidants in extenders before refrigeration could reduce this detrimental effect. Various antioxidants have been tested, both enzymatic, such as superoxide dismutase and catalase, and non-enzymatic, such as reduced glutathione, vitamins E and C and melatonin. However, the problem of oxidative stress in semen storage has not been fully resolved. The effects of antioxidants for semen-cooled storage have not been reviewed in depth. Therefore, the objective of the present study was to review the efficiency of the supplementation of antioxidants in the extender during cooled storage of semen in livestock species.
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Mahiddine FY, Kim MJ. Overview on the Antioxidants, Egg Yolk Alternatives, and Mesenchymal Stem Cells and Derivatives Used in Canine Sperm Cryopreservation. Animals (Basel) 2021; 11:1930. [PMID: 34203537 PMCID: PMC8300182 DOI: 10.3390/ani11071930] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/22/2021] [Accepted: 06/22/2021] [Indexed: 12/27/2022] Open
Abstract
Sperm cryopreservation is a widely used assisted reproductive technology for canine species. The long-term storage of dog sperm is effective for the breeding of dogs living far apart, scheduling the time of artificial insemination that suits the female, and preventing diseases of the reproductive tract. However, spermatozoa functions are impaired during the freeze-thaw processes, which may decrease reproductive performance. Numerous attempts have been made to restore such impairments, including the use of cryoprotectants to prevent the damage caused by ice crystal formation, and supplementation of antioxidants to reduce reactive oxygen species generation due to osmotic stress during the procedure. Egg yolk derivatives, antioxidants, and, more recently, mesenchymal stem cells (MSCs) and their derivatives have been proposed in this research field. This review article will summarize the current literature available on the topic.
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Affiliation(s)
| | - Min-Jung Kim
- Department of Research and Development, Mjbiogen Corp., Gwangnaru-ro 144, Seoul 14788, Korea;
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Tanaka Y, Herédias-Ribas CM, Baldini MHM, Guevara JEH, Duarte JMB. Evaluation of potential reproductive seasonality in brown brocket deer (Mazama gouazoubira) bucks. Theriogenology 2021; 171:104-112. [PMID: 34052778 DOI: 10.1016/j.theriogenology.2021.05.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 05/14/2021] [Accepted: 05/15/2021] [Indexed: 11/25/2022]
Abstract
Photoperiod is the main cue that controls seasonal reproduction in deer from temperate regions, like secretion of testosterone by the testis, neck enlargement, and testis development. However, little is known about its effect on the reproduction of tropical deer species. This research aimed to assess the potential seasonality of the brown brocket deer (Mazama gouazoubira) by melatonin treatment. Reproductive parameters such as testicular volume, neck circumference, and semen quality were evaluated from day 0 to 90, and fecal androgen metabolites (FAM) from day -28 to 91. Melatonin treatment was administered from day 0 to 60. In total, seven individuals were used in the study. Four animals were allocated to the treated group (TG) and three to the control group (CG). The neck circumference and some seminal parameters did not show a significant difference between CG and TG and along the experimental period. High FAM levels were observed for the TG on days 7, 14, 21, 35, 84, and 91 (p < 0.05). The mean testicular volume was reduced from day 0 to 30 (p < 0.05) and from day 0 to 90 (p < 0.05), with no increase in the mean testicular volume from day 30 to 60 (p > 0.05). Sperm motility was the highest on day 60 compared with day 0 (p < 0.05). Although not statistically different, membrane integrity and major defects tended to be higher and lower, respectively, in the TG compared with the CG. For these parameters, the incremental change (%) per individual showed that males from the TG tended to have a higher percentage during the melatonin treatment, hence melatonin might affect these seminal characteristics. These findings suggest that exogenous melatonin might enhance FAM levels and sperm motility.
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Affiliation(s)
- Yuki Tanaka
- Veterinary Science Postgraduate Program, School of Agricultural and Veterinary Studies (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, SP, Brazil; Deer Research and Conservation Center (NUPECCE), School of Agricultural and Veterinary Studies (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, SP, Brazil.
| | - Cláudia Maria Herédias-Ribas
- Veterinary Science Postgraduate Program, School of Agricultural and Veterinary Studies (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, SP, Brazil; Deer Research and Conservation Center (NUPECCE), School of Agricultural and Veterinary Studies (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, SP, Brazil.
| | - Maria Helena Mazzoni Baldini
- Veterinary Science Postgraduate Program, School of Agricultural and Veterinary Studies (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, SP, Brazil; Deer Research and Conservation Center (NUPECCE), School of Agricultural and Veterinary Studies (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, SP, Brazil.
| | - José Eduard Hernández Guevara
- Animal Science Postgraduate Program, School of Agricultural and Veterinary Studies (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, SP, Brazil; Deer Research and Conservation Center (NUPECCE), School of Agricultural and Veterinary Studies (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, SP, Brazil.
| | - José Maurício Barbanti Duarte
- Deer Research and Conservation Center (NUPECCE), School of Agricultural and Veterinary Studies (FCAV), São Paulo State University (UNESP), Jaboticabal, São Paulo, SP, Brazil.
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15
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Pool KR, Rickard JP, de Graaf SP. Melatonin improves the motility and DNA integrity of frozen-thawed ram spermatozoa likely via suppression of mitochondrial superoxide production. Domest Anim Endocrinol 2021; 74:106516. [PMID: 32712540 DOI: 10.1016/j.domaniend.2020.106516] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/02/2020] [Accepted: 06/24/2020] [Indexed: 01/16/2023]
Abstract
The ability of the neurohormone melatonin to ameliorate cryopreservation-induced damage to spermatozoa has been demonstrated in several domestic species. However, it is unclear how these protective effects are conferred, with improvements in sperm quality ambiguously attributed to the general antioxidant activity of melatonin. To further investigate this phenomenon, ram spermatozoa were diluted in cryomedia with and without melatonin (0 [control], 0.1, 1, 10, and 100 μM) and assessed for motility, viability, DNA integrity, mitochondrial superoxide production, lipid peroxidation, and intracellular reactive oxygen species before freezing and after thawing (0, 3, and 6 h post-thaw). Before freezing, supplementation with melatonin at any concentration had no effect on any measure of sperm quality. However, post-thaw, spermatozoa frozen in the presence of any level of melatonin reduced mitochondrial superoxide production of spermatozoa (P < 0.001), decreased the level of sperm DNA fragmentation (P < 0.001), and increased the percentage of motile spermatozoa (P = 0.035). Melatonin supplementation did not influence the relative levels of lipid peroxidation in the sperm membrane, the levels of intracellular reactive oxygen species, or sperm membrane lipid disorder (P > 0.05). There was no difference in the percentage of viable spermatozoa between treatment groups pre- or post-freeze (P > 0.05). These results suggest that, in the ram, melatonin does not protect the quality of cryopreserved spermatozoa through a nondiscerning scavenging of reactive oxygen species as previously suggested. Rather, melatonin appears to specifically reduce mitochondrial superoxide production, altering sperm functionality, as opposed to merely increasing the percentage of live sperm.
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Affiliation(s)
- K R Pool
- Faculty of Science, School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia.
| | - J P Rickard
- Faculty of Science, School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - S P de Graaf
- Faculty of Science, School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales 2006, Australia
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16
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Félix F, Oliveira CCV, Cabrita E. Antioxidants in Fish Sperm and the Potential Role of Melatonin. Antioxidants (Basel) 2020; 10:E36. [PMID: 33396234 PMCID: PMC7824569 DOI: 10.3390/antiox10010036] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/23/2020] [Accepted: 12/28/2020] [Indexed: 12/30/2022] Open
Abstract
In recent years, the effects of novel antioxidants have played an important role in the research focusing on fish cell protection. As food demand grows, aquaculture production becomes more intensive, and fish are more exposed to oxidative stress conditions, like high densities, temperature shifting, frequent fish handling and samplings, and prophylactic or disease treatments, which expose fish to a different environment. Particularly in reproduction, germ cells lose antioxidant capacity with spermatogenesis, as spermatozoa are more prone to oxidative stress. Antioxidants have been used in a variety of fish physiological problems including in reproduction and in the establishment of cryopreservation protocols. From the most used antioxidants to natural plant food and herbs, and endogenously produced antioxidants, like melatonin, a review of the literature available in terms of their effects on the protection of fish spermatozoa is presented here in a classified structure. Several direct and indirect approaches to improve gamete quality using antioxidants administration are mentioned (through feed supplementation or by adding in cryopreservation media), as well as factors affecting the efficiency of these molecules and their mechanisms of action. Special attention is given to the unclear melatonin pathway and its potential scavenger activity to prevent and counteract oxidative stress damage on fish spermatozoa.
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Affiliation(s)
| | - Catarina C. V. Oliveira
- Centre of Marine Sciences (CCMAR), University of Algarve, Campus Gambelas, 8005-139 Faro, Portugal;
| | - Elsa Cabrita
- Centre of Marine Sciences (CCMAR), University of Algarve, Campus Gambelas, 8005-139 Faro, Portugal;
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17
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Melatonin membrane receptors MT 1 and MT 2 are expressed in ram spermatozoa from non-seasonal breeds. Trop Anim Health Prod 2020; 52:2549-2557. [PMID: 32445158 DOI: 10.1007/s11250-020-02289-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 05/13/2020] [Indexed: 12/23/2022]
Abstract
In mammals, many melatonin biological functions are mediated through its interaction with the membrane receptors MT1 and MT2. We have previously reported their presence in ram spermatozoa from males located in temperate climates, but there is no information on their presence in spermatozoa from rams in areas with an equatorial photoperiod (12L:12D). Thus, we have investigated the existence and cellular distribution of melatonin receptors in spermatozoa from three sheep breeds in Colombia (Colombian Creole, Hampshire, and Romney Marsh) during dry and rainy seasons, using indirect immunofluorescence and western blot. Our results indicated the presence of melatonin receptors in spermatozoa from these rams, and that their distribution differs from that previously found in spermatozoa from rams in temperate climates. Moreover, two new immunotypes of MT2 were identified: type N, with staining only in the neck, and type E with a band of immunofluorescence in the upper part of the post-acrosome and the apical edge. Likewise, differences between breeds and climate seasons were detected for both receptors. However, densitometry analysis of western blot bands only revealed differences between seasons in the Creole rams for MT1 and the Romney Marsh rams for MT2, whereas differences between breeds were only detected for MT2. It could be inferred that melatonin receptors in rams subjected to an equatorial photoperiod might be more closely related to sperm quality than seasonal control. Therefore, the presence of these receptors suggests that melatonin could be a useful tool to increase the fertility of rams located in tropical or equatorial climates.
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18
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Peris-Frau P, Soler AJ, Iniesta-Cuerda M, Martín-Maestro A, Sánchez-Ajofrín I, Medina-Chávez DA, Fernández-Santos MR, García-Álvarez O, Maroto-Morales A, Montoro V, Garde JJ. Sperm Cryodamage in Ruminants: Understanding the Molecular Changes Induced by the Cryopreservation Process to Optimize Sperm Quality. Int J Mol Sci 2020; 21:ijms21082781. [PMID: 32316334 PMCID: PMC7215299 DOI: 10.3390/ijms21082781] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 04/07/2020] [Accepted: 04/14/2020] [Indexed: 12/28/2022] Open
Abstract
Sperm cryopreservation represents a powerful tool for livestock breeding. Several efforts have been made to improve the efficiency of sperm cryopreservation in different ruminant species. However, a significant amount of sperm still suffers considerable cryodamage, which may affect sperm quality and fertility. Recently, the use of different “omics” technologies in sperm cryobiology, especially proteomics studies, has led to a better understanding of the molecular modifications induced by sperm cryopreservation, facilitating the identification of different freezability biomarkers and certain proteins that can be added before cryopreservation to enhance sperm cryosurvival. This review provides an updated overview of the molecular mechanisms involved in sperm cryodamage, which are in part responsible for the structural, functional and fertility changes observed in frozen–thawed ruminant sperm. Moreover, the molecular basis of those factors that can affect the sperm freezing resilience of different ruminant species is also discussed as well as the molecular aspects of those novel strategies that have been developed to reduce sperm cryodamage, including new cryoprotectants, antioxidants, proteins, nanoparticles and vitrification.
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Fernández-Alegre E, Álvarez-Fernández I, Domínguez JC, Casao A, Martínez-Pastor F. Melatonin Non-Linearly Modulates Bull Spermatozoa Motility and Physiology in Capacitating and Non-Capacitating Conditions. Int J Mol Sci 2020; 21:ijms21082701. [PMID: 32295040 PMCID: PMC7215461 DOI: 10.3390/ijms21082701] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 04/04/2020] [Accepted: 04/07/2020] [Indexed: 02/08/2023] Open
Abstract
Bull spermatozoa physiology may be modulated by melatonin. We washed ejaculated spermatozoa free of melatonin and incubated them (4 h, 38 °C) with 0-pM, 1-pM, 100-pM, 10-nM and 1-µM melatonin in TALP-HEPES (non-capacitating) and TALP-HEPES-heparin (capacitating). This range of concentrations encompassed the effects mediated by melatonin receptors (pM), intracellular targets (nM–µM) or antioxidant activity (µM). Treatment effects were assessed as motility changes by computer-assisted sperm analysis (CASA) of motility and physiological changes by flow cytometry. Melatonin effects were more evident in capacitating conditions, with 100 pM reducing motility and velocity (VCL) while increasing a “slow” subpopulation. All concentrations decreased apoptotic spermatozoa and stimulated mitochondrial activity in viable spermatozoa, with 100 pM–1 µM increasing acrosomal damage, 10 nM–1 µM increasing intracellular calcium and 1 pM reducing the response to a calcium-ionophore challenge. In non-capacitating media, 1 µM increased hyperactivation-related variables and decreased apoptotic spermatozoa; 100 pM–1 µM increased membrane disorders (related to capacitation); all concentrations decreased mitochondrial ROS production. Melatonin concentrations had a modal effect on bull spermatozoa, suggesting a capacitation-modulating role and protective effect at physiological concentrations (pM). Some effects may be of practical use, considering artificial reproductive techniques.
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Affiliation(s)
- Estela Fernández-Alegre
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 León, Spain; (E.F.-A.); (I.Á.-F.); (J.C.D.)
| | - Indira Álvarez-Fernández
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 León, Spain; (E.F.-A.); (I.Á.-F.); (J.C.D.)
| | - Juan Carlos Domínguez
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 León, Spain; (E.F.-A.); (I.Á.-F.); (J.C.D.)
- Department of Animal Medicine, Surgery and Anatomy (Animal Medicine and Surgery), University of León, 24071 León, Spain
| | - Adriana Casao
- BIOFITER, Department of Biochemistry and Molecular and Cell Biology, Institute of Environmental Sciences of Aragón, School of Veterinary Medicine, University of Zaragoza, 50013 Zaragoza, Spain;
| | - Felipe Martínez-Pastor
- Institute of Animal Health and Cattle Development (INDEGSAL), University of León, 24071 León, Spain; (E.F.-A.); (I.Á.-F.); (J.C.D.)
- Department of Molecular Biology (Cell Biology), University of León, 24071 León, Spain
- Correspondence: ; Tel.: +34-987-291-491
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20
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D'Occhio MJ, Ghuman SS, Neglia G, Della Valle G, Baruselli PS, Zicarelli L, Visintin JA, Sarkar M, Campanile G. Exogenous and endogenous factors in seasonality of reproduction in buffalo: A review. Theriogenology 2020; 150:186-192. [PMID: 32000994 DOI: 10.1016/j.theriogenology.2020.01.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 01/18/2020] [Indexed: 12/29/2022]
Abstract
Seasonal breeding in buffalo is influenced by exogenous (photoperiod, climate, nutrition, management) and endogenous (hormones, genotype) factors. Buffalo are negatively photoperiodic and show a natural increase in fertility during decreasing day length. The hormone melatonin is produced by the pineal gland and has a fundamental role in photoperiodic time measurement within the brain. This drives annual cycles of gonadotropin secretion and gonadal function in buffaloes. Some melatonin is released into the systemic circulation and, together with peripherally produced melatonin, acts at somatic tissues. In the ovaries and testes of buffalo, melatonin acts as an antioxidant and scavenges oxygen free radicals to reduce both oxidative stress and apoptosis. This has beneficial effects on gametogenesis and steroidogenesis. Female buffalo treated with melatonin show an improved response to estrus synchronization protocols in out-of-season breeding. Melatonin acts through melatonin receptors MT1 and MT2 and the gene for MT1 (MTNR1A) is polymorphic in buffaloes. Single nucleotide polymorphisms (SNPs) in gene MTNR1A have been associated with fertility in female buffalo. The knowledge and tools are available to lift the reproductive performance of buffalo. This is highly important as the global demand for nutritious buffalo food products has undergone a sharp rise, and continues to grow. Buffalo can make an important contribution to affordable, nutritious animal protein. This will help address global nutritional security.
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Affiliation(s)
- Michael J D'Occhio
- School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Sydney, New South Wales, Australia
| | - Sarvpreet S Ghuman
- Department of Teaching Veterinary Clinical Complex, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, Punjab, 141004, India
| | - Gianluca Neglia
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy.
| | - Giovanni Della Valle
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - Pietro S Baruselli
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - Luigi Zicarelli
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
| | - José A Visintin
- Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of Sao Paulo, Sao Paulo, Brazil
| | - Mihir Sarkar
- Physiology and Climatology Division, Indian Veterinary Research Institute, Izatnagar, Bareilly, UP, 243122, India
| | - Giuseppe Campanile
- Department of Veterinary Medicine and Animal Production, University of Naples Federico II, Naples, Italy
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21
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Mercati F, Domingo P, Pasquariello R, Dall'Aglio C, Di Michele A, Forti K, Cocci P, Boiti C, Gil L, Zerani M, Maranesi M. Effect of chelating and antioxidant agents on morphology and DNA methylation in freeze-drying rabbit (Oryctolagus cuniculus) spermatozoa. Reprod Domest Anim 2020; 55:29-37. [PMID: 31626708 DOI: 10.1111/rda.13577] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 09/26/2019] [Accepted: 10/13/2019] [Indexed: 12/26/2022]
Abstract
Freeze-drying (FD) has been exhaustively tried in several mammalian species as an alternative technique to sperm cryopreservation, but few studies have been done in rabbits (Oryctolagus cuniculus). The main objective of this study was to compare the protective effect of various antioxidants added to EDTA medium on structural and functional components of FD rabbit spermatozoa and on their status of global DNA methylation. FD media used were composed of basic FD medium (10 mM Tris-HCl buffer and 50 mM NaCl) supplemented with either 50 mM EDTA alone (EDTA) or added with 105 µM of rosmarinic acid (RA, EDTA-RA) or 10 µM of melatonin (MLT, EDTA-MLT). The effect of each medium on the preservation of FD spermatozoon structure was evaluated with light and scanning electron microscopy (SEM). Global DNA methylation was quantified in all FD sperm samples as well as in fresh spermatozoa. Morphologically, fracture points were evidenced in the neck, mid and principal piece of the spermatozoon tail. No differences in spermatozoon fracture points were evidenced among FD treatments: intact spermatozoa were the largest (p < .01) category, whereas the most frequent (p < .01) injury was the neck fracture, resulting in tailless heads. At SEM, the head of spermatozoa showed a well-conserved shape and intact membrane in all treatments. DNA methylation status was the same in all FD treatments. In conclusion, supplementation of EDTA, EDTA-RA and EDTA-MLT during FD preserved rabbit sperm morphological integrity and methylation status as well. Therefore, the difficulty of getting viable offspring using FD semen is likely unrelated to the impact of the lyophilization process on DNA methylation and morphology of lyophilized spermatozoa.
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Affiliation(s)
- Francesca Mercati
- Dipartimento di Medicina Veterinaria, Università di Perugia, Perugia, Italy
| | - Paula Domingo
- Departamento de Patologìa Animal, Universidad de Zaragoza, Zaragoza, Spain
| | - Rolando Pasquariello
- Dipartimento di Scienze Agrarie e Ambientali - Produzione, Territorio, Agroenergia, Università di Milano, Milano, Italy
| | - Cecilia Dall'Aglio
- Dipartimento di Medicina Veterinaria, Università di Perugia, Perugia, Italy
| | | | - Katia Forti
- Istituto Zooprofilattico Sperimentale Umbria e Marche 'Togo Rosati' Perugia, Perugia, Italy
| | - Paolo Cocci
- Scuola di Bioscienze e Medicina Veterinaria, Università di Camerino, Camerino, Italy
| | - Cristiano Boiti
- Dipartimento di Medicina Veterinaria, Università di Perugia, Perugia, Italy
| | - Lidia Gil
- Departamento de Patologìa Animal, Universidad de Zaragoza, Zaragoza, Spain
| | - Massimo Zerani
- Dipartimento di Medicina Veterinaria, Università di Perugia, Perugia, Italy
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22
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Martínez-Marcos P, Carvajal-Serna M, Lázaro-Gaspar S, Pérez-Pé R, Muiño-Blanco T, Cebrián-Pérez JA, Casao A. Presence of melatonin-catabolizing non-specific enzymes myeloperoxidase and indoleamine 2,3-dioxygenase in the ram reproductive tract. Reprod Domest Anim 2019; 54:1643-1650. [PMID: 31587393 DOI: 10.1111/rda.13574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 09/30/2019] [Indexed: 11/27/2022]
Abstract
The melatonin catabolism is very complex and not completely understood. Melatonin can be metabolized by free radical interaction, but also pseudo-enzymatically or by enzymatic pathways. We have previously detected the existence of melatonin-synthesizing enzymes and melatonin receptors MT1 and MT2 in the ram reproductive tract; thus, in order to start to elucidate melatonin catabolism in these organs, we have investigated the presence of the melatonin-catabolizing enzymes indoleamine 2,3-dioxygenase (IDO, both IDO1 and IDO2 isoforms) and myeloperoxidase (MPO) in testis, epididymis and accessory glands. Gene expression analyses by real-time PCR showed the presence of MPO, IDO1 and IDO2 in all the organs of the ram reproductive tract and revealed that MPO is the main melatonin-catabolizing enzyme, which is mainly expressed in the testis and the bulbourethral glands (p < .05). These results were further corroborated by immunohistochemical staining, and by Western blot. Likewise, MPO was also evidenced in epididymal and ejaculated spermatozoa by indirect immunofluorescence and Western blot. In conclusion, melatonin-catabolizing enzymes MPO, IDO1 and IDO2 are expressed in the ram reproductive tract, and MPO is the most expressed one, mainly in the testis and the bulbourethral glands. The presented results warrant further studies on the function of these enzymes and their melatonin-metabolizing activity.
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Affiliation(s)
- Paula Martínez-Marcos
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - Melissa Carvajal-Serna
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain.,Departamento de Producción Animal, Facultad de Medicina Veterinaria y de Zootecnia, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Sofía Lázaro-Gaspar
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - Rosaura Pérez-Pé
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - Teresa Muiño-Blanco
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - José A Cebrián-Pérez
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - Adriana Casao
- Grupo BIOFITER, Departamento de Bioquímica y Biología Molecular y Celular, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
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23
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Rocco M, Betarelli R, Placci A, Fernández-Novell JM, Spinaci M, Casao A, Muiño-Blanco T, Cebrián-Pérez JA, Peña A, Rigau T, Bonet S, Castillo-Martín M, Yeste M, Rodríguez-Gil JE. Melatonin affects the motility and adhesiveness of in vitro capacitated boar spermatozoa via a mechanism that does not depend on intracellular ROS levels. Andrology 2018; 6:720-736. [PMID: 29858528 DOI: 10.1111/andr.12504] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Revised: 04/09/2018] [Accepted: 04/26/2018] [Indexed: 12/11/2022]
Abstract
This work sought to address the effects of melatonin during in vitro capacitation (IVC) and progesterone-induced acrosome exocytosis (IVAE) in boar spermatozoa. With this purpose, two different experiments were set. In the first one, IVC and IVAE were induced in the absence or presence of melatonin, which was added either at the start of IVC or upon triggering the IVAE with progesterone. Different parameters were evaluated, including intracellular levels of peroxides and superoxides, free cysteine radicals and distribution of specific lectins. While melatonin neither affected most capacitation-associated parameters nor IVAE, it dramatically decreased sperm motility, with a maximal effect at 5 μm. This effect was accompanied by a significant increase in the percentage of agglutinated spermatozoa, which was independent from noticeable changes in the distribution of lectins. Levels of free cysteine radicals were significantly lower in melatonin treatments than in the control after 4 h of incubation in capacitating medium. The second experiment evaluated the effects of melatonin on in vitro fertilising ability of boar spermatozoa. Spermatozoa previously subjected to IVC in the presence of 1 μm melatonin and used for in vitro fertilisation exhibited less ability to bind the zona pellucida (ZP) and higher percentages of monospermy. In conclusion, melatonin affects sperm motility and the stability of nucleoprotein structure and also modulates the ability of in vitro capacitated boar spermatozoa to bind the oocyte ZP. However, such effects do not seem to be related to either its antioxidant properties or changes in the sperm glycocalix.
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Affiliation(s)
- Martina Rocco
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès), Spain.,Department of Agriculture, Environment and Food Science, University of Molise, Campobasso, Italy
| | - Rafael Betarelli
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès), Spain.,Department of Veterinary Medicine, Federal University of Lavras, Lavras, Brazil
| | - Anna Placci
- Department of Veterinary Medicine, University of Bologna, Bologna, Italy
| | | | - Marcella Spinaci
- Department of Veterinary Medicine, University of Bologna, Bologna, Italy
| | - Adriana Casao
- Department of Biochemistry and Molecular and Cell Biology, Research Institute of Environmental Sciences, School of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - Teresa Muiño-Blanco
- Department of Biochemistry and Molecular and Cell Biology, Research Institute of Environmental Sciences, School of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - José A Cebrián-Pérez
- Department of Biochemistry and Molecular and Cell Biology, Research Institute of Environmental Sciences, School of Veterinary Medicine, University of Zaragoza, Zaragoza, Spain
| | - Alejandro Peña
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès), Spain
| | - Teresa Rigau
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès), Spain
| | - Sergi Bonet
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Miriam Castillo-Martín
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Marc Yeste
- Biotechnology of Animal and Human Reproduction (TechnoSperm), Department of Biology, Institute of Food and Agricultural Technology, University of Girona, Girona, Spain
| | - Joan E Rodríguez-Gil
- Department of Animal Medicine and Surgery, School of Veterinary Medicine, Autonomous University of Barcelona, Bellaterra (Cerdanyola del Vallès), Spain
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24
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Satta V, Manca ME, Torres-Rovira L, Succu S, Mereu P, Nehme M, Epifani G, Gallus M, Berlinguer F, Naitana S, Leoni GG. Effects of melatonin administration on seminal plasma metabolites and sperm fertilization competence during the non-reproductive season in ram. Theriogenology 2018; 115:16-22. [PMID: 29702366 DOI: 10.1016/j.theriogenology.2018.04.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 04/10/2018] [Accepted: 04/13/2018] [Indexed: 10/17/2022]
Abstract
The purpose of this study was to investigate the effects of ram melatonin treatment on the sperm quality and metabolite composition of the seminal plasma in the non-breeding season. Four mature rams were treated with 54 mg melatonin in March subcutaneous implants and four untreated rams served as control. At 0, 30, 90 and 120 days semen samples were collected and sperm, separated from seminal plasma, was evaluated for its capacity to fertilize and produce embryos in vitro. Seminal plasma metabolites were extracted and analyzed by capillary electrophoresis/mass spectroscopy. In the resulting electropherograms, the area corresponding to selected metabolites was extracted and quantified. Ram melatonin treatment affected the in vitro fertilization competence of sperm. Blastocyst output increased until 90 days after treatment (27.20 ± 7.35 vs 54.7 ± 4.4% at 0 and 90 days respectively; p < 0.05) while the untreated group did not show statistical differences. In treated rams, the concentration of melatonin in seminal plasma increased from 3.34 ± 1.70 at day 0-9.65 ± 2.89 AU (Arbitrary Units) after 90 days, then decreased to reach the level of the untreated ram after 120 days (p < 0.05). During 90 days after melatonin treatment, an increase (p < 0.05) in seminal plasma concentrations of glutamic acid (6.28 ± 1.53 vs 14.93 ± 1.53 AU at 0 and 90 days respectively), glutamine (16.89 ± 4.65 vs 54.51 ± 4.65 AU), carnitine (22.97 ± 9.81 vs 104.30 ± 9.81 AU), acetyl-carnitine (48.15 ± 17.32 vs 217.69 ± 17.32 AU), choline (1.82 ± 1.55 vs 14.16 ± 1.55 AU) and arginine (1.31 ± 1.08 vs 14.25 ± 1.08 AU) was detected. Tyrosine concentration increased during 30 days from melatonin treatment (12.79 ± 3.93 vs 27.08 ± 3.04 AU) but at 90 days its levels were similar to the untreated group. In conclusion, melatonin treatment during the non-breeding season improves the concentration of several metabolites in seminal plasma and sperm fertilization competence in Sarda breed ram.
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Affiliation(s)
- Valentina Satta
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Maria Elena Manca
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Laura Torres-Rovira
- Department of Animal Reproduction, INIA, Avda. Puerta de Hierro, 28040, Madrid, Spain
| | - Sara Succu
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Paolo Mereu
- Department of Biomedical Sciences, Via Muroni 11, 07100, Sassari, Italy
| | - Michella Nehme
- Lebanese University, Faculty of Agriculture Dekwaneh, Lebanon
| | - Gianpaolo Epifani
- Department of Animal Production, AGRIS Sardegna, Loc. Bonassai, Sassari, Italy
| | - Marilia Gallus
- Department of Animal Production, AGRIS Sardegna, Loc. Bonassai, Sassari, Italy
| | - Fiammetta Berlinguer
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
| | - Salvatore Naitana
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100, Sassari, Italy.
| | - Giovanni Giuseppe Leoni
- Department of Veterinary Medicine, University of Sassari, Via Vienna 2, 07100, Sassari, Italy
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25
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viviD D, Bentley GE. Seasonal Reproduction in Vertebrates: Melatonin Synthesis, Binding, and Functionality Using Tinbergen's Four Questions. Molecules 2018; 23:E652. [PMID: 29534047 PMCID: PMC6017951 DOI: 10.3390/molecules23030652] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/11/2018] [Accepted: 02/13/2018] [Indexed: 12/15/2022] Open
Abstract
One of the many functions of melatonin in vertebrates is seasonal reproductive timing. Longer nights in winter correspond to an extended duration of melatonin secretion. The purpose of this review is to discuss melatonin synthesis, receptor subtypes, and function in the context of seasonality across vertebrates. We conclude with Tinbergen's Four Questions to create a comparative framework for future melatonin research in the context of seasonal reproduction.
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Affiliation(s)
- Dax viviD
- Berkeley Department of Integrative Biology, University of California, Berkeley, CA 94720, USA.
| | - George E Bentley
- Berkeley Department of Integrative Biology, University of California, Berkeley, CA 94720, USA.
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26
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Deng SL, Wang ZP, Jin C, Kang XL, Batool A, Zhang Y, Li XY, Wang XX, Chen SR, Chang CS, Cheng CY, Lian ZX, Liu YX. Melatonin promotes sheep Leydig cell testosterone secretion in a co-culture with Sertoli cells. Theriogenology 2017; 106:170-177. [PMID: 29073541 DOI: 10.1016/j.theriogenology.2017.10.025] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 10/15/2017] [Accepted: 10/16/2017] [Indexed: 10/18/2022]
Abstract
Leydig cells synthesize and secrete testosterone, and are regulated by Sertoli cells. These two cell types may work together to regulate testicular androgen production. Studies have shown that Leydig cell androgen synthesis can be dramatically enhanced by Sertoli cells in the presence of melatonin, which can regulate the secretory function of Leydig and Sertoli cells. However, the molecular mechanism of melatonin-regulated Leydig cell androgen production via Sertoli cells remains unclear. Here, we found that 10-7 M melatonin increased testosterone production in co-cultured Leydig and Sertoli cells isolated from sheep. Melatonin increased the expression of stem cell factor and insulin-like growth factor-1 and decreased estrogen synthesis in Sertoli cells. Melatonin promoted insulin-like growth factor-1 and decreased estrogen content via the membrane melatonin receptor 1. It also enhanced stem cell factor expression via the retinoic acid receptor-related orphan receptor alpha. Addition of PD98059, a MEK inhibitor, to Sertoli cell culture demonstrated that the melatonin upregulation of insulin-like growth factor-1 and downregulation of estrogen may be through the MEK/extracellular signal-regulated kinase pathway. Together, these results suggest that melatonin may function through modulating melatonin receptor 1-regulated insulin-like growth factor-1 expression, as well as melatonin receptor 1-induced suppression of estrogen synthesis to increase androgen production in co-cultured Leydig and Sertoli cells.
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Affiliation(s)
- Shou-Long Deng
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Zhi-Peng Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China; University of the Chinese Academy of Sciences, Beijing 100101, PR China
| | - Cheng Jin
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China; University of the Chinese Academy of Sciences, Beijing 100101, PR China
| | - Xiao-Long Kang
- College of Agriculture, Ningxia University, Yinchuan 750021, PR China
| | - Aalia Batool
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China; University of the Chinese Academy of Sciences, Beijing 100101, PR China
| | - Yan Zhang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Xiao-Yu Li
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China; University of the Chinese Academy of Sciences, Beijing 100101, PR China
| | - Xiu-Xia Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Su-Ren Chen
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Chawn-Shang Chang
- George Whipple Laboratory for Cancer Research, Departments of Pathology, The Wilmot Cancer Center, University of Rochester Medical Center, Rochester, NY 14623, USA
| | - C Yan Cheng
- The Mary M. Wohlford Laboratory for Male Contraceptive Research, Center for Biomedical Research, Population Council, NY 10065, USA
| | - Zheng-Xing Lian
- Laboratory of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
| | - Yi-Xun Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, PR China.
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27
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Li C, Zhu X, Chen S, Chen L, Zhao Y, Jiang Y, Gao S, Wang F, Liu Z, Fan R, Sun L, Zhou X. Melatonin promotes the proliferation of GC-1 spg cells by inducing metallothionein-2 expression through ERK1/2 signaling pathway activation. Oncotarget 2017; 8:65627-65641. [PMID: 29029459 PMCID: PMC5630359 DOI: 10.18632/oncotarget.20019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 07/25/2017] [Indexed: 12/31/2022] Open
Abstract
Synthesized by the pineal gland, melatonin is a neurohormone implicated in diverse physiological functions via several mechanisms. However, the role of melatonin in spermatogenesis and its underlying mechanisms have yet to be completely understood. In the present study, transcriptome sequencing was performed to characterize the mechanism of melatonin-induced GC-1 spg proliferation. Gene ontology (GO) enrichment and pathway analyses were also conducted to identify the signaling pathways and biological processes involved in differential mRNA expression. Results revealed 28 differential genes. Of these genes, 11 were upregulated and 17 were downregulated. Melatonin increased the expression of metallothionein-2 (Mt2), a gene that acts as a protector to sequester nonessential toxic heavy metals. Functional investigations demonstrated that Mt2 overexpression promoted the proliferation of GC-1 spg cells, but Mt2 knockdown significantly suppressed their proliferation and increased their apoptosis. Mechanistic analysis indicated that the extracellular-signal-regulated kinase 1/2 (ERK1/2) pathway participated in melatonin-promoted proliferation of GC-1 spg cells. Therefore, melatonin induces the proliferation of GC-spg 1 cells by stimulating Mt2 expression, and this process is mediated by the ERK1/2 signaling pathway.
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Affiliation(s)
- Chunjin Li
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Xiaoling Zhu
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Shuxiong Chen
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Lu Chen
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Yun Zhao
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Yanwen Jiang
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Shan Gao
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Fengge Wang
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Zhuo Liu
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Rong Fan
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Liting Sun
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Xu Zhou
- College of Animal Sciences, Jilin Provincial Key Laboratory of Animal Embryo Engineering, Jilin University, Changchun, Jilin, 130062, P.R. China
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28
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Vince S, Valpotić H, Berta V, Milinković-Tur S, Samardžija M, Grizelj J, Špoljarić B, Đuričić D, Nazansky I, Žura Žaja I. Monitoring of libido and semen quality parameters in melatonin-treated French alpine bucks during the non-breeding season. Reprod Domest Anim 2017; 52:953-961. [PMID: 28608426 DOI: 10.1111/rda.13003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Accepted: 05/10/2017] [Indexed: 11/26/2022]
Abstract
The aim of this study was to investigate the effects of exogenous melatonin on libido and semen quality parameters in bucks during the non-breeding season. Twelve bucks of the French alpine breed from 1.5 to 4 years of age were assigned into melatonin (MG) and control (CG) groups, with 6 bucks in each group. The experimental period was 3 months (March-May), divided into six periods of 15 days each. The bucks in the MG group received four melatonin implants at the end of March. Two semen samples were taken from the bucks by artificial vagina once per week and their libido estimated. Volume and spermatozoa concentration, their mass motility and motility, proportion of live and total abnormal and forms with abnormal head and tail were determined in the obtained ejaculate samples. The total number of spermatozoa and functional spermatozoa fraction in the ejaculate was also calculated. The MG bucks had significantly higher mass motility and motility of spermatozoa in the first half of April, and a higher proportion of live spermatozoa in the first and second half of April (p < .05). Differences in libido intensity were not significant. The results indicated that the application of melatonin significantly improved the qualitative parameters of semen in bucks, as seen in increased mass motility, motility of spermatozoa and proportion of live spermatozoa shortly following melatonin insertion. Therefore, the results of the current study are novel regarding the use of melatonin treatment during the non-breeding season to improve the qualitative parameters of ejaculates in bucks.
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Affiliation(s)
- S Vince
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - H Valpotić
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - V Berta
- Veterinary Practice Varaždin, Varaždin, Croatia
| | - S Milinković-Tur
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - M Samardžija
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - J Grizelj
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - B Špoljarić
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - D Đuričić
- Veterinary Practice Đurđevac, Đurđevac, Croatia
| | - I Nazansky
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - I Žura Žaja
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
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29
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da Costa CFP, Gobbo MG, Taboga SR, Pinto-Fochi ME, Góes RM. Melatonin intake since weaning ameliorates steroidogenic function and sperm motility of streptozotocin-induced diabetic rats. Andrology 2016; 4:526-41. [PMID: 27037637 DOI: 10.1111/andr.12158] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 12/15/2015] [Accepted: 12/16/2015] [Indexed: 12/14/2022]
Abstract
Melatonin may be used as an antioxidant in therapy against systemic sequelae caused by oxidative stress in diabetes. However, as melatonin has a major role in regulating reproductive activity, its consequence on reproductive parameters under diabetes needs to be better clarified. We have studied whether prior and concomitant treatment of juvenile Wistar rats with low doses of melatonin interferes in reproductive damage induced by experimental diabetes after 1 and 8 weeks. The consequences of melatonin administration since weaning on reproductive parameters of healthy rats at adulthood were also evaluated. Melatonin was provided in drinking water (10 μg/kg b.w./day) after weaning (5-week-old). Diabetes was induced by streptozotocin injection (4.5 mg/100 g b.w.) at 13-week-old rats, and rats were euthanized 1 and 8 weeks after disease onset. Diabetes decreased circulating testosterone levels (~35% to 1 week; ~62% to 2 months; p < 0.01) but did not affect testes sperm counts. Two months of diabetes reduced the sperm reserve and led to atrophy of epididymal cauda. Both 1-week and 2-month diabetes impaired sperm motility, decreased the number of spermatozoa with progressive movement, and increased the number of immotile sperm. Melatonin intake reduced serum testosterone levels ~29% in healthy 14-week-old and ~23% in 21-week-old rats and reduced daily testicular sperm production ~26% in the latter disease stage, but did not interfere in sperm reserves and transit time for both experimental periods. Exogenous melatonin prevented the serum testosterone decrease and damage to sperm motility in diabetic rats and attenuated reduction in sperm counts and transit time induced by 1-week diabetes but did not avoid this decrease at 2-month diabetes. Low doses of melatonin administered prior to and during experimental diabetes attenuated damage to testicular steroidogenic activity and preserved sperm motility, but not sperm reserves in the rat. Our data indicated a differential action of melatonin in normoglycemic and hyperglycemic conditions, particularly in sperm motility and testosterone production by Leydig cells.
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Affiliation(s)
- C F P da Costa
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas - UNICAMP, São José do Rio Preto, SP, Brazil.,Department of Biology, Institute of Biosciences, Letters and Exact Sciences, Univ Estadual Paulista (IBILCE/UNESP), São José do Rio Preto, SP, Brazil
| | - M G Gobbo
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas - UNICAMP, São José do Rio Preto, SP, Brazil.,Department of Biology, Institute of Biosciences, Letters and Exact Sciences, Univ Estadual Paulista (IBILCE/UNESP), São José do Rio Preto, SP, Brazil
| | - S R Taboga
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas - UNICAMP, São José do Rio Preto, SP, Brazil.,Department of Biology, Institute of Biosciences, Letters and Exact Sciences, Univ Estadual Paulista (IBILCE/UNESP), São José do Rio Preto, SP, Brazil
| | - M E Pinto-Fochi
- Department of Biology, Institute of Biosciences, Letters and Exact Sciences, Univ Estadual Paulista (IBILCE/UNESP), São José do Rio Preto, SP, Brazil
| | - R M Góes
- Department of Structural and Functional Biology, Institute of Biology, State University of Campinas - UNICAMP, São José do Rio Preto, SP, Brazil.,Department of Biology, Institute of Biosciences, Letters and Exact Sciences, Univ Estadual Paulista (IBILCE/UNESP), São José do Rio Preto, SP, Brazil
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