1
|
Fathi M, Salama A, El-Shahat KH, El-Sherbiny HR, Abdelnaby EA. Effect of melatonin supplementation during IVM of dromedary camel oocytes (Camelus dromedarius) on their maturation, fertilization, and developmental rates in vitro. Theriogenology 2021; 172:187-192. [PMID: 34218101 DOI: 10.1016/j.theriogenology.2021.05.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 05/17/2021] [Accepted: 05/17/2021] [Indexed: 01/01/2023]
Abstract
The positive impact of melatonin on in vitro embryo production (IVEP) has been reported in many domestic species; however, no studies have been carried out in camelids. We aimed to evaluate the effects of melatonin supplementation in maturation media on in vitro maturation, fertilization, and preimplantation embryo development of dromedary camel oocytes (experiment 1). We also evaluated the concentrations of total antioxidant capacity (TAC), and malondialdehyde (MDA) in the IVM spent medium in relation to melatonin supplementation. Cumulus oocyte complexes (COCs) were cultured in in vitro maturation media (IVM) supplemented with either 0.0, 25.0, 50.0 or 75.0 μM of melatonin for 30 h. Matured oocytes were then fertilized in vitro with epididymal camel spermatozoa. Following IVF, the resulting embryos were cultured in vitro for seven days. The percentage of maturation, fertilization, cleavage, and embryo developmental rates (morula and blastocyst) was recorded (experiment 1). TAC and MDA levels in the IVM spent maturation media were also evaluated at 30 h post-IVM (experiment 2). The results showed that supplementation of IVM media with 25 μM melatonin significantly improved oocyte nuclear maturation, fertilization (18 h post-insemination; pi), cleavage (day 3 pi), morula (day 5 pi) and blastocyst (day 7 pi) rates as compared with the controls and other melatonin-supplemented groups. Furthermore, the TAC in the IVM spent media was significantly increased (P < 0.05) in 25 μM melatonin supplemented groups than those supplemented with 0.0, 50.0, 75.0 μM melatonin. However, the concentration of MDA was significantly lower (P < 0.05) in IVM media supplemented with 25.0 μM of melatonin when compared with the control and other treatment groups. In conclusion, supplementation of IVM medium with 25 μM of melatonin could enhance the in vitro developmental capacity of dromedary camel oocytes.
Collapse
Affiliation(s)
- Mohamed Fathi
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Ali Salama
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - K H El-Shahat
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
| | - H R El-Sherbiny
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Elshymaa A Abdelnaby
- Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| |
Collapse
|
2
|
Tian X, Wang F, Zhang L, He C, Ji P, Wang J, Zhang Z, Lv D, Abulizi W, Wang X, Lian Z, Liu G. Beneficial Effects of Melatonin on the In Vitro Maturation of Sheep Oocytes and Its Relation to Melatonin Receptors. Int J Mol Sci 2017; 18:ijms18040834. [PMID: 28420163 PMCID: PMC5412418 DOI: 10.3390/ijms18040834] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 03/31/2017] [Accepted: 04/07/2017] [Indexed: 12/19/2022] Open
Abstract
(1) Background: The binding sites of melatonin, as a multifunctional molecule, have been identified in human, porcine, and bovine samples. However, the binding sites and mechanisms of melatonin have not been reported in sheep; (2) Methods: Cumulus–oocyte complexes (COCs) were cultured in TCM-199 supplemented with melatonin at concentrations of 0, 10−3, 10−5, 10−7, 10−9, and 10−11 M. Melatonin receptors (MT1 and MT2) were evaluated via immunofluorescence and Western blot. The effects of melatonin on cumulus cell expansion, nuclear maturation, embryo development, and related gene (GDF9, DNMT1, PTX3, HAS2, and EGFR) expression were investigated. The level of cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP) were evaluated in oocytes and cumulus, respectively; (3) Results: Both MT1 and MT2 were expressed in oocytes, cumulus cells, and granulosa cells. Melatonin with a concentration of 10−7 M significantly enhanced the rates of nuclear maturation, cumulus cells expansion, cleavage, and blastocyst. Melatonin enhanced the expression of BMP15 in oocytes and of PTX3, HAS2, and EGFR in cumulus cells. Melatonin decreased the cAMP level of oocytes but enhanced the cGMP level in oocytes and cumulus cells; (4) Conclusion: The higher presence of MT1 in GV cumulus cells and the beneficial effects of melatonin indicated that its roles in regulating sheep oocyte maturation may be mediated mainly by the MT1 receptor.
Collapse
Affiliation(s)
- Xiuzhi Tian
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Feng Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Lu Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Changjiu He
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Pengyun Ji
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Jing Wang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Zhenzhen Zhang
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Dongying Lv
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Wusiman Abulizi
- College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China.
| | - Xuguang Wang
- College of Animal Science, Xinjiang Agricultural University, Urumqi 830052, China.
| | - Zhengxing Lian
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| | - Guoshi Liu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, Beijing Key Laboratory for Animal Genetic Improvement, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China.
| |
Collapse
|
3
|
Rodrigues-Cunha MC, Mesquita LG, Bressan F, Collado MD, Balieiro JCC, Schwarz KRL, de Castro FC, Watanabe OY, Watanabe YF, de Alencar Coelho L, Leal CLV. Effects of melatonin during IVM in defined medium on oocyte meiosis, oxidative stress, and subsequent embryo development. Theriogenology 2016; 86:1685-94. [PMID: 27471183 DOI: 10.1016/j.theriogenology.2016.05.026] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Revised: 05/02/2016] [Accepted: 05/20/2016] [Indexed: 01/25/2023]
Abstract
Melatonin may have beneficial effects when used in oocyte maturation and embryo development culture. The effect of melatonin during IVM on meiosis resumption and progression in bovine oocytes and on expression of antioxidant enzymes, nuclear fragmentation and free radicals, as well as on embryo development were assessed. Cumulus-oocyte complexes were matured in vitro with melatonin (10(-9) and 10(-6) M), FSH (positive control), or without hormones (negative control) in defined medium. Maturation rates were evaluated at 6, 12, 18, and 24 hours. Transcripts for antioxidant enzymes (CuZnSOD, MnSOD, and glutathione peroxidase 4 (GPX4)) in oocytes and cumulus cells, nuclear fragmentation in cumulus cells (TUNEL) and reactive oxygen species levels in oocytes (carboxy-H2 difluorofluorescein diacetate) were determined at 24 hours IVM. Effect of treatments on embryo development was determined after in vitro fertilization and culture. At 12 hours, meiosis resumption rates in FSH and melatonin-treated groups were similar (69.6%-81.8%, P > 0.05). At 24 hours, most oocytes were in metaphase II, with FSH showing highest rates (90.0%, P < 0.05) compared with the other groups (51.6%-69.1%, P > 0.05). In cumulus cells, MnSOD expression was higher in FSH group (P < 0.05) whereas Cu,ZnSOD transcripts were more abundant in melatonin group (10(-6)M; P < 0.05). Nuclear fragmentation in cumulus cells was highest in controls (37.4%/10,000 cells; P < 0.05) and lower in FSH and 10(-6)M melatonin (29.4% and 25.6%/10,000 cells, respectively). Reactive oxygen species levels were lower in oocytes matured with 10(-6)M melatonin than in control and FSH groups (P < 0.05). Embryo development from oocytes matured only with melatonin was similar to those matured in complete medium (P > 0.05). In conclusion, although melatonin during IVM in a defined medium does not stimulate nuclear maturation progression it does stimulate meiosis resumption and such treated oocytes support subsequent embryo development. Melatonin also shows cytoprotective effects on cumulus-oocyte complexes.
Collapse
Affiliation(s)
| | - Lígia G Mesquita
- Departamento de Nutrição e Produção Animal, Faculdade de Medicina Veterinária e Zootecnia-USP, Pirassununga-SP, Brazil
| | - Fabiana Bressan
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos-USP, Pirassununga-SP, Brazil
| | - Maite Del Collado
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos-USP, Pirassununga-SP, Brazil
| | - Júlio C C Balieiro
- Departamento de Nutrição e Produção Animal, Faculdade de Medicina Veterinária e Zootecnia-USP, Pirassununga-SP, Brazil
| | - Kátia R L Schwarz
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos-USP, Pirassununga-SP, Brazil
| | - Fernanda C de Castro
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos-USP, Pirassununga-SP, Brazil
| | | | | | - Lia de Alencar Coelho
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos-USP, Pirassununga-SP, Brazil
| | - Cláudia L V Leal
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos-USP, Pirassununga-SP, Brazil.
| |
Collapse
|
4
|
Gonzalez-Arto M, Hamilton TRDS, Gallego M, Gaspar-Torrubia E, Aguilar D, Serrano-Blesa E, Abecia JA, Pérez-Pé R, Muiño-Blanco T, Cebrián-Pérez JA, Casao A. Evidence of melatonin synthesis in the ram reproductive tract. Andrology 2016; 4:163-71. [PMID: 26742835 DOI: 10.1111/andr.12117] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 09/04/2015] [Accepted: 09/07/2015] [Indexed: 12/24/2022]
Abstract
Melatonin is a ubiquitous molecule found in a wide range of fluids, one of them being ram seminal plasma, in which it can reach higher concentrations than those found in blood, suggesting an extrapineal secretion by the reproductive tract. In order to identify the source of the melatonin found in ram seminal plasma, we first tried to determine whether the melatonin levels were maintained during the day. For this purpose, melatonin concentrations were measured in seminal plasma obtained from first ejaculates of six rams at 6:00 a.m. in total darkness, at 10:00 a.m. and at 14:00 p.m. The melatonin concentration was higher (p < 0.05) in ejaculates collected at 6:00 a.m. than at 10:00 and 14:00. There was no statistical difference between the latter. To further corroborate an extrapineal secretion of melatonin, the presence of the two key enzymes involved in melatonin synthesis, arylalkylamine-N-acetyltransferase (AANAT) and N-acetylserotonin-O-methyltransferase (ASMT) was analyzed by RT-PCR, q-PCR and Western-blot in ram testes, epididymis, and accessory glands. The RT-PCR showed the presence of the m-RNA codifying both AANAT and ASTM in all the tissues under study, but the q-PCR and Western-blot revealed that gene expression of these enzymes was significantly higher in the testis (p < 0.05). Immunohistochemistry confirmed the presence of AANAT and ASMT in the testis and revealed that they were found in the Leydig cells, spermatocytes, and spermatids. Also, measurable levels of melatonin were found in testicular tissue and the tail of the epididymis. In conclusion, our study indicates that the testes are one of the likely sources of the high levels of melatonin found in ram seminal plasma, at least during the day.
Collapse
Affiliation(s)
- M Gonzalez-Arto
- Grupo Biología y Fisiología de la Reproducción, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - T R dos S Hamilton
- Dpto. de Reprodução Animal, da Faculdade de Medicina Veterinaria e Zootecnia, da Universidade de São Paulo, São Paulo, Brazil
| | - M Gallego
- Departamento de Patología Animal, Facultad de Veterinaria, Universidad de Zaragoza, Zaragoza, Spain
| | - E Gaspar-Torrubia
- Grupo Biología y Fisiología de la Reproducción, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - D Aguilar
- Grupo Biología y Fisiología de la Reproducción, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - E Serrano-Blesa
- Grupo Biología y Fisiología de la Reproducción, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - J A Abecia
- Grupo Biología y Fisiología de la Reproducción, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - R Pérez-Pé
- Grupo Biología y Fisiología de la Reproducción, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - T Muiño-Blanco
- Grupo Biología y Fisiología de la Reproducción, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - J A Cebrián-Pérez
- Grupo Biología y Fisiología de la Reproducción, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| | - A Casao
- Grupo Biología y Fisiología de la Reproducción, Facultad de Veterinaria, Instituto de Investigación de Ciencias Ambientales de Aragón (IUCA), Universidad de Zaragoza, Zaragoza, Spain
| |
Collapse
|
5
|
Nishihara T, Hashimoto S, Ito K, Nakaoka Y, Matsumoto K, Hosoi Y, Morimoto Y. Oral melatonin supplementation improves oocyte and embryo quality in women undergoing in vitro fertilization-embryo transfer. Gynecol Endocrinol 2014; 30:359-62. [PMID: 24628045 DOI: 10.3109/09513590.2013.879856] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The aim of this study was to evaluate the efficacy of oral melatonin supplementation on oocyte and embryo quality in patients in an assisted reproductive technologies program. All patients were treated for at least 2 weeks with melatonin (3 mg/day). To evaluate the cumulative effect of melatonin supplementation, we compared cycle outcomes between the first (no supplementation) and second cycles (melatonin supplementation) of patients who completed two treatment cycles. There were no significant differences in maturation rates (p = 0.50), blastocyst rates (p = 0.75), and the rate of good quality blastocysts (p = 0.59) between the first and second cycles. The fertilization rate of ICSI was higher in the second cycle than that in the first cycle (69.3 versus 77.5%). Being limited to patients with a low fertilization rate in the first cycle (<60%), the fertilization rate dramatically increased after melatonin treatment (35.1 versus 68.2%). The rate of good quality embryos also increased (48.0 versus 65.6%). An important finding in our study was that oral melatonin supplementation can have a beneficial effect on the improvement of fertilization and embryo quality and this may have occurred due to a reduction in oxidative damage.
Collapse
|
6
|
El-Raey M, Geshi M, Somfai T, Kaneda M, Hirako M, Abdel-Ghaffar AE, Sosa GA, El-Roos MEAA, Nagai T. Evidence of melatonin synthesis in the cumulus oocyte complexes and its role in enhancing oocyte maturation in vitro in cattle. Mol Reprod Dev 2011; 78:250-62. [PMID: 21381146 DOI: 10.1002/mrd.21295] [Citation(s) in RCA: 138] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Accepted: 01/24/2011] [Indexed: 12/15/2022]
Abstract
Melatonin is a multifunctional molecule that mediates several circadian and seasonal reproductive processes. The exact role of melatonin in modulating reproduction, however, is not fully understood-especially its effects on the ovarian follicles and oocytes. This study was conducted to investigate the expressions of the ASMT and melatonin-receptor MTNR1A and MTNR1B genes in bovine oocytes and their cumulus cells, as well as the effects of melatonin on oocyte nuclear and cytoplasmic maturation in vitro. Cumulus-oocyte complexes (COCs) from abattoir ovaries were cultured in TCM-199 supplemented with melatonin at concentrations of 0, 10, 50, and 100 ng/ml. The expression of ASMT, MTNR1A, and MTNR1B genes was evaluated by RT-PCR. Moreover, the effects of melatonin on cumulus cell expansion, nuclear maturation, mitochondrial characteristics and COCs steroidogenesis were investigated. Furthermore, the level of reactive oxygen species (ROS) was evaluated in denuded oocytes. Our study revealed that ASMT and MTNR1A genes were expressed in COCs, while the MTNR1B gene was expressed only in oocytes. Additionally, melatonin supplementation at 10 and 50 ng/ml to in vitro maturation medium significantly enhanced oocyte nuclear maturation, cumulus cell expansion and altered the mitochondrial distribution patterns, but had no effects on oocyte mitochondrial activity and COCs steroidogenesis. Melatonin-treated oocytes had a significantly lower level of ROS than controls. The presence of melatonin receptors in COCs and its promoting effects on oocyte nuclear and cytoplasmic events, indicate the potentially important roles of this hormone in regulating bovine oocyte maturation. Moreover, the presence of ASMT transcript in COCs suggests the possible involvement of these cells in melatonin biosynthesis.
Collapse
Affiliation(s)
- Mohamed El-Raey
- Reproductive Biology and Technology Research Team, National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Tsukuba, Ibaraki, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|