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Tavares WCM, Maretto V, Silveira V, Pinto VB, Bustamante-Filho IC, Quirino CR, Ortiz Vega WH, Caldas-Bussiere MC. Impact of the near-physiological temperature on the in vitro maturation of bovine oocytes: A comparative proteomic approach. Theriogenology 2024; 228:64-74. [PMID: 39098122 DOI: 10.1016/j.theriogenology.2024.07.026] [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: 05/30/2024] [Revised: 07/09/2024] [Accepted: 07/29/2024] [Indexed: 08/06/2024]
Abstract
In vivo, the temperature inside preovulatory follicles of cows is approximately 1 °C lower than rectal temperature. However, standard bovine oocyte in vitro maturation (IVM) protocols use 38.5 °C based on rectal temperature. This study evaluated the effect of reducing IVM temperature to 37.5 °C on the proteomic profile of oocytes compared to the routine 38.5 °C. Nuclear maturation rate and cumulus cell (CC) expansion (30 COCs per group, 21 replicates) were assessed by observing the first polar body and using a subjective scoring method (0-4). Total nitrite concentrations in the culture medium were measured using the Griess method. Differential proteomics was performed using LC-MS/MS on pooled oocyte samples (500 matured oocytes per group, three replicates), followed by gene ontology enrichment, protein-protein interaction, and putative miRNA target analyses. No significant differences were observed between the groups in nuclear maturation, CC expansion, or nitrite concentration (P > 0.05). A total of 806 proteins were identified, with 7 up-regulated and 12 down-regulated in the treatment group compared to the control. Additionally, 12 proteins were unique to the control group, and 8 were unique to the treatment group. IVM at 37.5 °C resulted in the upregulation of proteins involved in protein folding and GTP binding, and the downregulation of enzymes with oxidoreductase activity and proteins involved in cytoskeletal fiber formation. Furthermore, 43 bovine miRNAs potentially regulating these genes (DES, HMOX2, KRT75, FARSA, IDH2, CARHSP1) were identified. We conclude that IVM of bovine oocytes at 37.5 °C induces significant proteomic changes without impacting nuclear maturation, cumulus cell expansion, or nitrite concentration in the IVM medium.
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Affiliation(s)
- Winny Caldas Moreno Tavares
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF), Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro, RJ, 28013-602, Brazil
| | - Vinicius Maretto
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF), Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro, RJ, 28013-602, Brazil
| | - Vanildo Silveira
- Laboratório de Biotecnologia, Centro de Biociências e Biotecnologia (CBB), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Av. Alberto Lamego 2000, Campos dos Goytacazes, RJ, 28013-602, Brazil; Unidade de Biologia Integrativa, Setor de Genômica e Proteômica, UENF, Campos dos Goytacazes, RJ, Brazil
| | - Vitor Batista Pinto
- Laboratório de Biotecnologia, Centro de Biociências e Biotecnologia (CBB), Universidade Estadual do Norte Fluminense Darcy Ribeiro (UENF), Av. Alberto Lamego 2000, Campos dos Goytacazes, RJ, 28013-602, Brazil; Unidade de Biologia Integrativa, Setor de Genômica e Proteômica, UENF, Campos dos Goytacazes, RJ, Brazil
| | - Ivan Cunha Bustamante-Filho
- Laboratório de Biotecnologia da Reprodução Animal, Universidade do Vale do Taquari - Univates, Rua Avelino Tallini, 171, Lajeado, RS, 95914-014, Brazil
| | - Celia Raquel Quirino
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF), Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro, RJ, 28013-602, Brazil
| | - Wilder Hernando Ortiz Vega
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF), Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro, RJ, 28013-602, Brazil
| | - Maria Clara Caldas-Bussiere
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro - UENF), Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro, RJ, 28013-602, Brazil.
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Funnell B, Briand-Amirat L, Viana JHM, Perry G. Disease risk of in vitro produced embryos: A review of current commercial practices in the context of international trade with emphasis on bovine embryos. Theriogenology 2024; 230:212-219. [PMID: 39332381 DOI: 10.1016/j.theriogenology.2024.09.019] [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: 07/16/2024] [Revised: 09/20/2024] [Accepted: 09/23/2024] [Indexed: 09/29/2024]
Abstract
The ever-evolving procedures of the practice of in vitro production (IVP) of embryos has well outpaced the ability of governments and institutions to create standardized rules and regulations around the global trade of these reproductive products. There are several challenges related to identifying and quantifying disease transmission risk in IVP embryos, not the least of which is a lack of published information. The International Embryo Technology Society (IETS) Health and Safety Advisory Committee (HASAC) has identified and addressed several of the challenges related to the potential for disease transmission via IVP embryos. This review will outline the current sanitation practices recommended by the IETS for in vivo derived (IVD) embryos, as well as the current practices at most in vitro fertilization (IVF) labs and will present the case that IVP embryos are not only just as safe as IVD embryos from a disease transmission risk standpoint, but perhaps may even be safer than IVD embryos, as the oocyte, zygote, and embryo in the in vitro production system has no contact with the downstream reproductive anatomy (fimbria, isthmus, oviduct, or uterus) of the donor female.
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Affiliation(s)
- Bethany Funnell
- Purdue University College of Veterinary Medicine, West Lafayette, IN, 47906, USA
| | | | | | - George Perry
- IETS Health and Safety Advisory Committee Chair, Jerrabomberra, NSW, 2619, Australia.
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3
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Oliver MA, Speckhart SL, Edwards JL, Rhoads ML, Ealy AD. Human recombinant interleukin-6 improves the morphological quality of cryopreserved in vitro produced bovine blastocysts. Theriogenology 2024; 226:173-180. [PMID: 38908059 DOI: 10.1016/j.theriogenology.2024.06.014] [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: 04/05/2024] [Revised: 06/01/2024] [Accepted: 06/18/2024] [Indexed: 06/24/2024]
Abstract
This work explored whether a well-characterized recombinant human interleukin-6 (hIL6) protein will influence in vitro produced (IVP) bovine embryo development and survival after cryopreservation. Cumulus oocyte complexes were collected from abattoir derived ovaries, matured for 24 h, and fertilized using pooled semen from Holstein bulls. Embryos were treated with 0, 25, 50, or 100 ng/mL hIL6 on day 5 post-fertilization. An increase in ICM cell numbers was observed in each hIL6 treatment, with the lowest hIL6 treatment having the same magnitude of response as the middle and highest hIL6 concentration. No effects on TE cell numbers were observed. The second study involved cryopreserving (via slow freezing) of hIL6-treated blastocysts, then examining post-thaw blastocyst survival by incubating for 24 h in the absence of hIL6 treatments. Blastocyst re-expansion and hatching rates were unaffected by any of the IL6 treatments, however, increases in both ICM and TE cell numbers were detected at 24 h post-thawing in blastocysts exposed to 100 ng/mL hIL6 but not lower concentrations before freezing. A reduction in the percentage of TUNEL-positive TE cells was observed after thawing in blastocysts exposed to 25, 50 and 100 ng/mL hIL6 before cryopreservation. No treatment-dependent changes in TUNEL-positive ICM cells were observed. In summary, hIL6 supplementation improves ICM cell numbers in bovine blastocysts to a degree that is commensurate with what has been observed when using bovine recombinant IL6. This positive effect of hIL6 on ICM cell numbers is maintained after freezing and thawing, and a novel improvement in post-thaw TE cell numbers occur in hIL6 treated embryos. This positive effect on TE cell numbers is attributed, at least in part, to an hIL6-dependent reduction in TE cell apoptosis.
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Affiliation(s)
- Mary A Oliver
- School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Savannah L Speckhart
- School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA; Current Address: Institute for Reproductive and Developmental Sciences, University of Kansas Medical Center, Kansas City, KS, USA
| | - J Lannett Edwards
- Department of Animal Science, The University of Tennessee, Knoxville, TN, USA
| | - Michelle L Rhoads
- School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Alan D Ealy
- School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA.
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Lee J, Lee S, Ryu G, Kim D, Baek HU, Kim J, Lee K, Kim S, Kim S, Dang CG, Choi T, Choi I. A retrospective analysis of conception per embryo transfer in dairy cattle in South Korea. Theriogenology 2024; 226:363-368. [PMID: 38968679 DOI: 10.1016/j.theriogenology.2024.07.001] [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: 02/19/2024] [Revised: 06/30/2024] [Accepted: 07/02/2024] [Indexed: 07/07/2024]
Abstract
The bovine embryo production industry has seen significant growth over the past two decades, particularly in the production of in vitro produced embryos. This growth, driven by advancements in cryopreservation, in vitro culture mediums, ovum pick-up (OPU) procedures, ultrasonography devices, and embryo transfer (ET) has been notable. Particularly, ET is crucial for disseminating high genetic merit and amplifying foreign breeds by importing frozen embryos. This retrospective study aimed to assess factors affecting conception per embryo transfer (CPET) in Holstein-Friesian cattle in South Korea from October 2008 to July 2022. We evaluated type of embryo breed, type of embryo production (fresh and frozen; in vitro and in vivo production), recipient conditions including estrus type, corpus luteum quality, parity (nulliparous heifers, primiparous, and multiparous cows), and the daily mean temperature-humidity index (THI) as an index for heat stress. Type of embryo breed and estrus had no significant impact on CPET. However, we observed higher CPET in recipients with good quality corpus luteum, nulliparous heifers, and surrogates receiving fresh in vitro and frozen in vivo embryos. Importantly, CPET was not adversely affected by mild heat stress conditions (up to daily mean THI 76), indicating that using frozen in vivo embryos produced by multiple ovulation embryo transfer and fresh in vitro embryos by OPU-ET can help alleviate the subfertility issues in dairy cattle caused by global warming in Korea.
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Affiliation(s)
- Jihwan Lee
- Dairy Science Division, National Institute of Animal Science, RDA, Cheon-an, 31000, Republic of Korea.
| | - Songjeon Lee
- Dairy Biotechnology R&D Center, Seoul Milk Cooperation, Yangpyeong-gun, 12528, Republic of Korea
| | - Gyeonglim Ryu
- Dairy Science Division, National Institute of Animal Science, RDA, Cheon-an, 31000, Republic of Korea
| | - Doosan Kim
- Dairy Science Division, National Institute of Animal Science, RDA, Cheon-an, 31000, Republic of Korea
| | - Hyeong-Uk Baek
- Dairy Science Division, National Institute of Animal Science, RDA, Cheon-an, 31000, Republic of Korea
| | - Joohwan Kim
- Dairy Biotechnology R&D Center, Seoul Milk Cooperation, Yangpyeong-gun, 12528, Republic of Korea
| | - Kyungsuk Lee
- Dairy Science Division, National Institute of Animal Science, RDA, Cheon-an, 31000, Republic of Korea
| | - Sunkyu Kim
- Dairy Science Division, National Institute of Animal Science, RDA, Cheon-an, 31000, Republic of Korea
| | - Sangbum Kim
- Dairy Science Division, National Institute of Animal Science, RDA, Cheon-an, 31000, Republic of Korea
| | - Chang-Gwon Dang
- Animal Breeding and Genetics Division, National Institute of Animal Science, RDA, Cheon-an, 31000, Republic of Korea
| | - Taejeong Choi
- Dairy Science Division, National Institute of Animal Science, RDA, Cheon-an, 31000, Republic of Korea.
| | - Inchul Choi
- Division of Animal and Dairy Sciences, College of Agriculture and Life Sciences, Chungnam National University, Daejeon, 34134, Republic of Korea.
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5
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Carvalheira LDR, Leite Albeny AC, Silva EBM, Borges ÁM. Heat shock on bovine embryos from day 2.5-3 selects the most competent for progression to the blastocyst stage. Theriogenology 2024; 230:21-27. [PMID: 39241577 DOI: 10.1016/j.theriogenology.2024.09.001] [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: 06/18/2024] [Revised: 08/30/2024] [Accepted: 09/01/2024] [Indexed: 09/09/2024]
Abstract
Heat shock can impair embryo formation, while growth factors, such as colony-stimulating factor 2 (CSF2), modulate embryonic development. This study evaluated the effect of heat shock between days 2.5 and 3, as well as the impact of CSF2 at day 5 on bovine embryos cultured in a serum-free in vitro medium. The focus was on blastocyst development, the number of blastomeres, DNA fragmentation (TUNEL-positive cells), and mitochondrial activity. Heat shock reduced the proportion of cleaved embryos that developed into blastocysts (P = 0.0603). The resultant blastocysts exhibited a reduced number and proportion of TUNEL-positive cells in the trophectoderm (P = 0.0270 and P = 0.0240, respectively) and in the entire embryo (P = 0.0029 and P = 0.0031, respectively). Additionally, mitochondrial activity was lower in blastocysts derived from heat-shocked embryos (P = 0.0150) and further reduced in embryos exposed to both heat shock and CSF2 (P = 0.0415). In conclusion, the exposure of cleaved embryos to heat shock reduced their development to the blastocyst stage. However, the resulting blastocysts showed decreased DNA fragmentation and mitochondrial activity.
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Affiliation(s)
- Luciano de Rezende Carvalheira
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil.
| | - Ana Carolina Leite Albeny
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Eliane Beatriz Magalhães Silva
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
| | - Álan Maia Borges
- Departamento de Clínica e Cirurgia Veterinárias, Escola de Veterinária, Universidade Federal de Minas Gerais, 31270-901, Belo Horizonte, Minas Gerais, Brazil
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6
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Guo Y, Wang S, Wu X, Zhao R, Chang S, Ma C, Song S, Zeng S. Multi-Omics Reveals the Role of Arachidonic Acid Metabolism in the Gut-Follicle Axis for the Antral Follicular Development of Holstein Cows. Int J Mol Sci 2024; 25:9521. [PMID: 39273467 PMCID: PMC11395146 DOI: 10.3390/ijms25179521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2024] [Revised: 08/27/2024] [Accepted: 08/30/2024] [Indexed: 09/15/2024] Open
Abstract
In vitro embryonic technology is crucial for improving farm animal reproduction but is hampered by the poor quality of oocytes and insufficient development potential. This study investigated the relationships among changes in the gut microbiota and metabolism, serum features, and the follicular fluid metabolome atlas. Correlation network maps were constructed to reveal how the metabolites affect follicular development by regulating gene expression in granulosa cells. The superovulation synchronization results showed that the number of follicle diameters from 4 to 8 mm, qualified oocyte number, cleavage, and blastocyst rates were improved in the dairy heifers (DH) compared with the non-lactating multiparous dairy cows (NDC) groups. The gut microbiota was decreased in Rikenellaceae_RC9_gut_group, Alistipes, and Bifidobacterium, but increased in Firmicutes, Cyanobacteria, Fibrobacterota, Desulfobacterota, and Verrucomicrobiota in the NDC group, which was highly associated with phospholipid-related metabolites of gut microbiota and serum. Metabolomic profiling of the gut microbiota, serum, and follicular fluid further demonstrated that the co-metabolites were phosphocholine and linoleic acid. Moreover, the expression of genes related to arachidonic acid metabolism in granulosa cells was significantly correlated with phosphocholine and linoleic acid. The results in granulosa cells showed that the levels of PLCB1 and COX2, participating in arachidonic acid metabolism, were increased in the DH group, which improved the concentrations of PGD2 and PGF2α in the follicular fluid. Finally, the expression levels of apoptosis-related proteins, cytokines, and steroidogenesis-related genes in granulosa cells and the concentrations of steroid hormones in follicular fluid were determinants of follicular development. According to our results, gut microbiota-related phosphocholine and linoleic acid participate in arachidonic acid metabolism in granulosa cells through the gut-follicle axis, which regulates follicular development. These findings hold promise for enhancing follicular development and optimizing oocyte quality in subfertile dairy cows.
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Affiliation(s)
- Yajun Guo
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Shiwei Wang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xuan Wu
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Rong Zhao
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Siyu Chang
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Chen Ma
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Shuang Song
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Shenming Zeng
- State Key Laboratory of Animal Biotech Breeding, National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the Ministry of Agriculture, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
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Goetten ALF, Barreta MH, Pinto da Silva Y, Bertolin K, Koch J, Rocha CC, Dias Gonçalves PB, Price CA, Antoniazzi AQ, Portela VM. FGF18 impairs blastocyst viability, DNA double-strand breaks and maternal recognition of pregnancy genes. Theriogenology 2024; 225:81-88. [PMID: 38796960 DOI: 10.1016/j.theriogenology.2024.05.020] [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: 12/12/2023] [Revised: 05/15/2024] [Accepted: 05/15/2024] [Indexed: 05/29/2024]
Abstract
Embryonic mortality in cattle is high, reaching 10-40 % in vivo and 60-70 % in vitro. Death of embryos involves reduced expression of genes related to embryonic viability, inhibition of DNA repair and increased DNA damage. In follicular granulosa cells, FGF18 from the theca layer increases apoptosis and DNA damage, so we hypothesized that FGF18 may also affect the oocyte and contribute to early embryonic death. The aims of this study were to identify the effects of FGF18 on cumulus expansion, oocyte maturation and embryo development from cleavage to blastocyst stage using a conventional bovine in vitro embryo production system using ovaries of abattoir origin. Addition of FGF18 during in-vitro maturation did not affect FSH-induced cumulus expansion or rates of nuclear maturation. When FGF18 was present in the culture system, rates of cleavage were not affected however, blastocyst and expanded blastocyst development was substantially inhibited (P < 0.05), indicating a delay of blastulation. The number of phosphorylated histone H2AFX foci per nucleus, a marker of DNA damage, was higher in cleavage-stage embryos cultured with FGF18 than in those from control group (P < 0.05). Furthermore, FGF18 decreased accumulation of PTGS2 and IFNT2 mRNA in blastocysts. In conclusion, these novel findings suggest that FGF18 plays a role in the regulation of embryonic death during the early stages of development by impairing DNA double-strand break repair and expression of genes associated with embryo viability and maternal recognition of pregnancy during the progression from oocyte to expanded blastocysts.
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Affiliation(s)
- André Lucio Fontana Goetten
- Laboratory of Animal Reproduction Physiology, LAFRA, Federal University of Santa Catarina, Curitibanos, SC, Brazil
| | - Marcos Henrique Barreta
- Laboratory of Animal Reproduction Physiology, LAFRA, Federal University of Santa Catarina, Curitibanos, SC, Brazil
| | - Yago Pinto da Silva
- Laboratory of Animal Reproduction Physiology, LAFRA, Federal University of Santa Catarina, Curitibanos, SC, Brazil
| | - Kalyne Bertolin
- Biotechnology and Animal Reproduction Laboratory, BioRep, Federal University of Santa Maria, RS, Brazil
| | - Júlia Koch
- Biotechnology and Animal Reproduction Laboratory, BioRep, Federal University of Santa Maria, RS, Brazil
| | - Cecilia Constantino Rocha
- Laboratory of Animal Reproduction Physiology, LAFRA, Federal University of Santa Catarina, Curitibanos, SC, Brazil
| | - Paulo Bayard Dias Gonçalves
- Biotechnology and Animal Reproduction Laboratory, BioRep, Federal University of Santa Maria, RS, Brazil; Molecular and Integrative Physiology of Reproduction Laboratory, MINT, Federal University of Pampa, Uruguaiana, RS, Brazil
| | - Christopher Alan Price
- Centre de Recherche en Reproduction et Fertilité, Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, QC, Canada
| | - Alfredo Quites Antoniazzi
- Biotechnology and Animal Reproduction Laboratory, BioRep, Federal University of Santa Maria, RS, Brazil
| | - Valerio Marques Portela
- Biotechnology and Animal Reproduction Laboratory, BioRep, Federal University of Santa Maria, RS, Brazil.
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Li X, Du M, Liu Y, Wang M, Shen Y, Xing J, Zhang L, Zhao Y, Bou G, Bai D, Dugarjaviin M, Xia W. Proteome and metabolomic profile of Mongolian horse follicular fluid during follicle development. Sci Rep 2024; 14:19788. [PMID: 39187528 PMCID: PMC11347562 DOI: 10.1038/s41598-024-66686-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Accepted: 07/03/2024] [Indexed: 08/28/2024] Open
Abstract
During follicular development, changes in the composition of the follicular fluid are synchronized with the development of oocytes. Our aim was to screen the key factors affecting oocyte maturation and optimize the in vitro culture protocol by understanding the changes of proteins and metabolites in follicular fluid. Follicles are divided into three groups according to their diameter (small follicle fluid (SFF): 10 mm < d < 20 mm; medium follicle fluid (MFF): 20 mm < d < 30 mm; large follicle fluid (LFF): 30 mm < d). Proteins and metabolites from the follicular fluid were analyzed by mass spectrometry. The results showed that: in LFF vs MFF, 20 differential abundant protein (DAP) and 88 differential abundant metabolites (DAM) were screened out; In SFF vs MFF, 3 DAPs and 65 DAMs were screened out; In MFF vs SFF, 24 DAPs and 35 DAMs were screened out. The analysis of differential proteins and metabolites showed that glycerophosphate hydrolysis decreased during follicular development, and proteins played a major role in metabolism and binding. In addition, DAMs and DAPs are co-enriched in the "linoleic acid metabolism" pathway. Combinatorial analysis reveals the dynamic profile of follicular fluid during follicular development and provides fundation for further exploring the function of follicular fluid in Mongolian horse.
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Affiliation(s)
- Xinyu Li
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Ming Du
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Yuanyi Liu
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Min Wang
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Yingchao Shen
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Jingya Xing
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao, 266000, China
| | - Lei Zhang
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Yiping Zhao
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Gerelchimeg Bou
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Dongyi Bai
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China
| | - Manglai Dugarjaviin
- College of Animal Science, Inner Mongolia Key Laboratory of Equine Science Research and Technology Innovation, Equine Research Center, Inner Mongolia Agricultural University, Hohhot, 010018, China.
| | - Wei Xia
- College of Animal Science and Technology, Hebei Agricultural University, Baoding, 071000, China.
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9
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Mastromonaco G. 40 'wild' years: the current reality and future potential of assisted reproductive technologies in wildlife species. Anim Reprod 2024; 21:e20240049. [PMID: 39286364 PMCID: PMC11404876 DOI: 10.1590/1984-3143-ar2024-0049] [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: 04/18/2024] [Accepted: 06/25/2024] [Indexed: 09/19/2024] Open
Abstract
Over the past 40 years, assisted reproductive technologies (ARTs) have grown significantly in scale and innovation, from the bovine embryo industry's shift from in vivo derived to in vitro produced embryos and the development of somatic cell-based approaches for embryo production. Domestic animal models have been instrumental in the development of ARTs for wildlife species in support of the One Plan Approach to species conservation that integrates in situ and ex situ population management strategies. While ARTs are not the sole solution to the biodiversity crisis, they can offer opportunities to maintain, and even improve, the genetic composition of the captive and wild gene pools over time. This review focuses on the application of sperm and embryo technologies (artificial insemination and multiple ovulation/in vitro produced embryo transfer, respectively) in wildlife species, highlighting impactful cases in which significant progress or innovation has transpired. One of the key messages following decades of efforts in this field is the importance of collaboration between researchers and practitioners from zoological, academic, governmental, and private sectors.
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Klohonatz K, Durrant B, Sirard MA, Ruggeri E. Granulosa cells provide transcriptomic information on ovarian follicle dynamics in southern white rhinoceros. Sci Rep 2024; 14:19321. [PMID: 39164442 PMCID: PMC11336098 DOI: 10.1038/s41598-024-70235-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Accepted: 08/14/2024] [Indexed: 08/22/2024] Open
Abstract
Much remains unknown about the reproductive physiology of southern white rhinoceros (SWR) and the effect of ovarian stimulation prior to ovum pickup (OPU) have not been fully elucidated. Granulosa cells (GC) provide valuable insight into follicle growth and oocyte maturation status. The goals of this study were to evaluate transcriptomic changes in GC from three stages of follicle development and to identify biomarkers possibly associated with follicular growth and maturation as a result of ovarian stimulation. GC collected from SWRs following OPU were assigned stages based upon follicle size. Total RNA was isolated, and cDNA libraries were prepared and sequenced on a NovaSeq 6000. All bioinformatics analyses were performed utilizing the Galaxy web platform. Reads were aligned to CerSimCot1.0, and the manual curation was performed with EquCab3.0. Overall, 39,455 transcripts (21,612 genes) were identified across follicle stages, and manual curation yielded a 61% increase in gene identification from the original annotation. Granulosa cells from preovulatory follicles expressed the highest number of unique transcripts. The following seven biomarkers were determined based upon cluster analysis and patterns of expression: COL1A1, JMY, FBXW11, NRG1, TMPO, MACIR and COL4A1. These data can be used to potentially evaluate the effects of different ovarian stimulation protocols on follicle dynamics, improve OPU results, and support conservation efforts in this species.
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Affiliation(s)
- Kristin Klohonatz
- Center for Research on Reproduction and Women's Health, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Barbara Durrant
- Reproductive Sciences, Conservation Science Wildlife Health, San Diego Zoo Wildlife Alliance, Escondido, CA, USA
| | - Marc-André Sirard
- Département des Sciences Animales, Université Laval, Québec City, Québec, Canada
| | - Elena Ruggeri
- Reproductive Sciences, Conservation Science Wildlife Health, San Diego Zoo Wildlife Alliance, Escondido, CA, USA.
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Itami N, Akagi S, Hirao Y. Excluding alanine from minimum essential medium (MEM) nonessential amino acid supplementation of the culture medium facilitates post-fertilization events and early cleavages of bovine oocytes fertilized in vitro. J Reprod Dev 2024; 70:223-228. [PMID: 38763744 PMCID: PMC11310387 DOI: 10.1262/jrd.2023-098] [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: 12/04/2023] [Accepted: 04/16/2024] [Indexed: 05/21/2024] Open
Abstract
Embryonic transfer of bovine blastocysts produced by in vitro fertilization is widely utilized-despite a compromised conception rate. It has been suggested that a set of four evaluation criteria for judging the quality of embryos, based on the timing of early cleavages and proper morphologies of embryos, can effectively predict pregnancy success. These blastocysts are hereafter referred to as four-criteria-compliant blastocysts. The same criteria should be used to modify the culture media to improve embryo quality. For example, culture media is often supplemented with nonessential amino acids (NEAA) at a uniform concentration despite the major variation in their concentration in the oviductal fluid. In the present study, the effects of the embryo culture medium, namely CR1, supplemented with all seven MEM NEAA or six of them, excluding one at a time, were examined. All media, except for the medium that did not contain proline and serine, tended to improve the efficiency of producing four-criteria-compliant blastocysts, and excluding alanine was particularly effective. The absence of alanine resulted in the rapid occurrence of the first cleavage and pronuclear formation of fertilized oocytes in the alanine-free medium compared to that in the medium containing alanine. These results suggested that alanine hinders certain events involved in the progression of early embryogenesis, which is necessary to achieve the four criteria that provide a benchmark for pregnancy. Therefore, a significantly higher percentage of embryos satisfied the recommended criteria and developed into four-criteria-compliant blastocysts when developed in alanine-free medium than in alanine-containing medium.
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Affiliation(s)
- Nobuhiko Itami
- Division of Dairy Cattle Feeding and Breeding Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Ibaraki 305-0901, Japan
| | - Satoshi Akagi
- Division of Dairy Cattle Feeding and Breeding Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Ibaraki 305-0901, Japan
| | - Yuji Hirao
- Division of Dairy Cattle Feeding and Breeding Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Ibaraki 305-0901, Japan
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Ming H, Zhang M, Rajput S, Logsdon D, Zhu L, Schoolcraft WB, Krisher RL, Jiang Z, Yuan Y. In vitro culture alters cell lineage composition and cellular metabolism of bovine blastocyst†. Biol Reprod 2024; 111:11-27. [PMID: 38408205 PMCID: PMC11247278 DOI: 10.1093/biolre/ioae031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 11/05/2023] [Accepted: 02/14/2024] [Indexed: 02/28/2024] Open
Abstract
Profiling bovine blastocyst transcriptome at the single-cell level has enabled us to reveal the first cell lineage segregation, during which the inner cell mass (ICM), trophectoderm (TE), and an undefined population of transitional cells were identified. By comparing the transcriptome of blastocysts derived in vivo (IVV), in vitro from a conventional culture medium (IVC), and in vitro from an optimized reduced nutrient culture medium (IVR), we found a delay of the cell fate commitment to ICM in the IVC and IVR embryos. Developmental potential differences between IVV, IVC, and IVR embryos were mainly contributed by ICM and transitional cells. Pathway analysis of these non-TE cells between groups revealed highly active metabolic and biosynthetic processes, reduced cellular signaling, and reduced transmembrane transport activities in IVC embryos that may lead to reduced developmental potential. IVR embryos had lower activities in metabolic and biosynthetic processes but increased cellular signaling and transmembrane transport, suggesting these cellular mechanisms may contribute to improved blastocyst development compared to IVC embryos. However, the IVR embryos had compromised development compared to IVV embryos with notably over-active transmembrane transport activities that impaired ion homeostasis.
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Affiliation(s)
- Hao Ming
- Department of Animal Sciences, Genetics Institute, University of Florida, Gainesville, FL, USA
| | - Mingxiang Zhang
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
| | - Sandeep Rajput
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
- Genus plc, DeForest, WI, USA
| | - Deirdre Logsdon
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
| | - Linkai Zhu
- Department of Animal Sciences, Genetics Institute, University of Florida, Gainesville, FL, USA
| | | | - Rebecca L Krisher
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
- Genus plc, DeForest, WI, USA
| | - Zongliang Jiang
- Department of Animal Sciences, Genetics Institute, University of Florida, Gainesville, FL, USA
| | - Ye Yuan
- Colorado Center for Reproductive Medicine, Lone Tree, CO, USA
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Vasconcelos EM, Braga RF, Leal GR, Carvalho RPR, Machado-Neves M, Sudano MJ, Souza-Fabjan JMG. Impact of reducing lipid content during in vitro embryo production: A systematic review and meta-analysis. Theriogenology 2024; 222:31-44. [PMID: 38615434 DOI: 10.1016/j.theriogenology.2024.04.003] [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: 12/02/2023] [Revised: 03/16/2024] [Accepted: 04/08/2024] [Indexed: 04/16/2024]
Abstract
There is still no consensus regarding the role of lipid modulators during in vitro embryo production. Thus, we investigated how lipid reducers during the in vitro maturation of oocytes (IVM) or in vitro culture (IVC) of embryos impact their cryotolerance. A literature search was performed using three databases, recovering 43 articles for the systematic review, comprising 75 experiments (13 performed in IVM, 62 in IVC) and testing 13 substances. In 39 % of the experiments, an increase in oocyte and/or embryo survival after cryopreservation was reported, in contrast to 48 % exhibiting no effect, 5 % causing negative effects, and 8 % influencing in a dose-dependent manner. Of the 75 experiments extracted during IVM and IVC, 41 quantified the lipid content. Of those that reduced lipid content (n = 26), 50 % increased cryotolerance, 34 % had no effect, 8 % harmed oocyte/embryo survival, and 8 % had different results depending on the concentration used. Moreover, 28 out of the 43 studies were analyzed under a meta-analytical approach at the IVC stage in cattle. There was an improvement in the cryotolerance of bovine embryos when the lipid content was reduced. Forskolin, l-carnitine, and phenazine ethosulfate positively affected cryotolerance, while conjugated linoleic acid had no effect and impaired embryonic development. Moreover, fetal bovine serum has a positive impact on cryotolerance. SOF and CR1aa IVC media improved cryotolerance, while mSOF showed no effect. In conclusion, lipid modulators did not unanimously improve cryotolerance, especially when used in IVM, but presented positive effects on cryotolerance during IVC when reaching lipid reduction.
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Affiliation(s)
- Erlandia M Vasconcelos
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, CEP, 24230-340, Niterói, RJ, Brazil.
| | - Rachel F Braga
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, CEP, 24230-340, Niterói, RJ, Brazil
| | - Gabriela R Leal
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, CEP, 24230-340, Niterói, RJ, Brazil
| | - Renner P R Carvalho
- Departamento de Biologia Geral, Universidade Federal de Viçosa, Viçosa, Brazil
| | | | - Mateus J Sudano
- Departamento de Genética e Evolução, Universidade Federal de São Carlos, São Carlos, SP, Brazil
| | - Joanna M G Souza-Fabjan
- Faculdade de Veterinária, Universidade Federal Fluminense, Av. Vital Brasil Filho, 64, CEP, 24230-340, Niterói, RJ, Brazil.
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Pereira PVDS, Di Azevedo MIN, Arashiro EKN, Watanabe YF, Correia LFL, Lilenbaum W, Souza-Fabjan JMG. The presence of Leptospira spp. in the follicular fluid of naturally infected cows affects the overall efficiency of the in vitro embryo production technique. Anim Reprod Sci 2024; 266:107492. [PMID: 38749391 DOI: 10.1016/j.anireprosci.2024.107492] [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: 12/24/2023] [Revised: 04/09/2024] [Accepted: 04/28/2024] [Indexed: 06/16/2024]
Abstract
The relationship between Leptospira infection and reproductive failures, as well as the mechanisms that lead to it, has not yet been fully established. It has been hypothesized that the presence of Leptospira spp. in the follicular fluid (FF) could impair the oocyte developmental competence. Thus, the impact of the presence of Leptospira spp. in the FF on in vitro embryo production (IVEP) outcomes was assessed. Dairy cows (n=244) from different farms were subjected to ovum pick-up for cumulus-oocyte complexes (COCs) collection. After PCR analysis of the FF, cows were retrospectively allocated into either: positive (POS-FF) or negative (NEG-FF) group. Statistical modeling was conducted using the farm, PCR result, and laboratory in which the IVEP was performed as effects. Noteworthy, 26.6% of the animals were positive for Leptospira spp., and 70% of farms had at least one POS-FF cow in the herd. POS-FF cows had a lower number of COCs recovered (22.6 ± 1.2 vs 15.0 ± 2.8, P=0.036), rate of viable COCs (85.6 ± 0.9% vs 78.1 ± 2.8%, P=0.015), number of good-quality COCs (16.0 ± 0.9 vs 9.8 ± 2.1, P=0.026), cleaved embryos (11.9 ± 0.7 vs 7.5 ± 1.5, P=0.032), and blastocysts (7.3 ± 0.4 vs 2.3 ± 0.7, P=0.044) yielded per cow. In conclusion, the presence of Leptospira spp. in the FF of naturally infected cows impaired the amount of COCs recovered, decreasing the overall IVEP efficiency.
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Affiliation(s)
| | - Maria Isabel Nogueira Di Azevedo
- Laboratório de Bacteriologia Veterinária, Instituto Biomédico, Universidade Federal Fluminense, Alameda Barros Terra, 57, Niterói, RJ CEP: 24020-150, Brazil
| | - Eduardo Kenji Nunes Arashiro
- Faculdade de Veterinária, Universidade Federal Fluminense, Rua Vital Brasil Filho, 64, Niterói, RJ CEP: 24320-340, Brazil
| | - Yeda Fumie Watanabe
- Watanabe Tecnologia Aplicada, Avenida Coronel José Nogueira Terra, 233, Cravinhos, SP CEP: 14140-000, Brazil
| | | | - Walter Lilenbaum
- Laboratório de Bacteriologia Veterinária, Instituto Biomédico, Universidade Federal Fluminense, Alameda Barros Terra, 57, Niterói, RJ CEP: 24020-150, Brazil
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Andrade RS, Custódio DADC, Silva Fernandes do Vale L, Oliveira ÉA, Lage AP, Dorneles EMS. Is it safe to use ovarian follicular fluid from cows seropositive for brucellosis in the production of in vitro embryos? Reprod Domest Anim 2024; 59:e14672. [PMID: 39034616 DOI: 10.1111/rda.14672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/27/2024] [Accepted: 07/05/2024] [Indexed: 07/23/2024]
Abstract
Animal reproduction biotechniques are important tools for the technological advancement of livestock, as they allow the selection of the reproductive potential of superior quality females and males; however, infectious diseases that have a predilection for the reproductive system can be a hindrance for the use of these technologies. Therefore, the present study aimed to detect Brucella spp. in the ovarian follicular fluid of brucellosis-positive bovine cows. A total of 47 bovine ovarian follicular fluid aspirates from cows, positive in tests for brucellosis and from Brucella-positive herd, were submitted to PCR. The primers used in the PCR were specific to the genus Brucella (bcsp31 gene). All 47 bovine aspirates were negative for Brucella spp. 0.00% (95% CI: 0.00-4.00%). Our results demonstrated that Brucella spp. was absent in the ovarian follicular fluid from seropositive cows, which indicates that Brucella spp.-infected cows could be used for reproductive biotechnologies carried out with follicular aspirates. Future studies are needed to more precisely evaluate the feasibility and safety of using these oocytes from brucellosis-seropositive cows to transfer embryos to heifers/cows not infected by Brucella, aiming to produce calves free of the infection.
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Affiliation(s)
- Rafaella Silva Andrade
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Medicina Veterinária, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
| | - Dircéia Aparecida da Costa Custódio
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Medicina Veterinária, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
| | - Leonardo Silva Fernandes do Vale
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Medicina Veterinária, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
| | - Érika Aparecida Oliveira
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Medicina Veterinária, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
| | - Andrey Pereira Lage
- Departamento de Medicina Veterinária Preventiva, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Elaine Maria Seles Dorneles
- Departamento de Medicina Veterinária, Faculdade de Zootecnia e Medicina Veterinária, Universidade Federal de Lavras, Lavras, Minas Gerais, Brazil
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Djedovic R, Radojkovic D, Stanojevic D, Savic R, Vukasinovic N, Popovac M, Bogdanovic V, Radovic C, Gogic M, Gligovic N, Stojic P, Mitrovic I. Base Characteristics, Preservation Methods, and Assessment of the Genetic Diversity of Autochthonous Breeds of Cattle, Sheep and Pigs in Serbia: A Review. Animals (Basel) 2024; 14:1894. [PMID: 38998006 PMCID: PMC11240667 DOI: 10.3390/ani14131894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2024] [Revised: 06/23/2024] [Accepted: 06/26/2024] [Indexed: 07/14/2024] Open
Abstract
Preserving local autochthonous domestic animal populations and the products derived from them is a crucial aspect of managing human utilization of the biosphere. This management approach aims to ensure sustainable benefits for both present and future generations. The diversity of autochthonous domestic animal populations plays a vital role in the functionality and sustainability of the food production system. It encompasses both productive and non-productive aspects, contributing significantly to the overall health, nutrition, and food security of the landscape by providing a wide range of animal-derived food resources. Based on the data contained in the Draft Program of Rural Development, a significant presence of more than 44 autochthonous and local breeds of domestic animals has been noted in Serbia. In order to enable the sustainable preservation of local domestic animals, the competent Ministry of Agriculture of the Republic of Serbia has, through a number of projects, implemented models for the preservation of local breeds on farms (in situ), as well as provided technical assistance to small farms that keep animal collections. It also helps the local population to procure animals, conducts product quality research, and provides opportunities to integrate conservation programs through tourism. Given that molecular characterization is a key factor for the preservation of autochthonous breeds, in the Republic of Serbia, DNA markers are used for identification and to investigate the belonging to a specific breeds or strain. All the mentioned activities led to an immediate increase in the number of animals, which is especially true for the autochthonous breeds of cattle (Busha), sheep (Sjenicka, Svrljiska, and Vlach-vitohorn) and pigs (Mangalitsa, Moravka, and Resavka) that are discussed in this paper. In addition to the significant measures undertaken to preserve animal genetic resources (AnGR), it is necessary to continue to work primarily on ex situ conservation in order to prevent the loss of their gene pools. However, regardless of the evident effort that has been made to preserve autochthonous genetic resources in Serbia, we believe that there is still a lot of room for further improvement. This primarily refers to advanced technologies that have not been applied so far, mostly related to the identification of genomic regions associated with economic traits, resistance to diseases, and adaptability to emerging climate changes. In this way, the production capacity and functional characteristics of autochthonous species and breeds of domestic animals in Serbia will be improved.
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Affiliation(s)
- Radica Djedovic
- Department of Animal Science, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (D.R.); (D.S.); (R.S.); (M.P.); (V.B.); (N.G.); (I.M.)
| | - Dragan Radojkovic
- Department of Animal Science, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (D.R.); (D.S.); (R.S.); (M.P.); (V.B.); (N.G.); (I.M.)
| | - Dragan Stanojevic
- Department of Animal Science, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (D.R.); (D.S.); (R.S.); (M.P.); (V.B.); (N.G.); (I.M.)
| | - Radomir Savic
- Department of Animal Science, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (D.R.); (D.S.); (R.S.); (M.P.); (V.B.); (N.G.); (I.M.)
| | - Natasha Vukasinovic
- Zoetis Veterinary Medicine Research and Development (VMRD), Kalamazoo, MI 49001, USA;
| | - Mladen Popovac
- Department of Animal Science, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (D.R.); (D.S.); (R.S.); (M.P.); (V.B.); (N.G.); (I.M.)
| | - Vladan Bogdanovic
- Department of Animal Science, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (D.R.); (D.S.); (R.S.); (M.P.); (V.B.); (N.G.); (I.M.)
| | - Cedomir Radovic
- Institute for Animal Husbandry, 11080 Belgrade, Serbia; (C.R.); (M.G.)
| | - Marija Gogic
- Institute for Animal Husbandry, 11080 Belgrade, Serbia; (C.R.); (M.G.)
| | - Nikolija Gligovic
- Department of Animal Science, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (D.R.); (D.S.); (R.S.); (M.P.); (V.B.); (N.G.); (I.M.)
| | - Petar Stojic
- Institute for Science Application in Agriculture, Bulevar Despota Stefana 68b, 11000 Belgrade, Serbia;
| | - Ivan Mitrovic
- Department of Animal Science, Faculty of Agriculture, University of Belgrade, Nemanjina 6, 11080 Belgrade, Serbia; (D.R.); (D.S.); (R.S.); (M.P.); (V.B.); (N.G.); (I.M.)
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Navarro M, Fanti T, Ortega NM, Waremkraut M, Guaimas F, Mutto AÁ, Blüguermann C. The Simulated Physiological Oocyte Maturation (SPOM) System Enhances Cytoplasmic Maturation and Oocyte Competence in Cattle. Animals (Basel) 2024; 14:1893. [PMID: 38998004 PMCID: PMC11240716 DOI: 10.3390/ani14131893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/07/2024] [Accepted: 06/14/2024] [Indexed: 07/14/2024] Open
Abstract
In vitro embryo production is a widely applied technique that allows the expansion of genetics and accelerated breeding programs. However, in cattle, this technique still needs improvement in order to reach quality and pregnancy rates comparable to in vivo-derived embryos. One of the limitations of this technique is related to in vitro maturation, where a heterogeneous population of oocytes is harvested from follicles and cultured in vitro in the presence of gonadotropic hormones to induce maturation. As a result, oocytes with different degrees of competence are obtained, resulting in a decrease in the quality and quantity of embryos obtained. A novel system based on the use of cyclic adenosine monophosphate (cAMP) modulators was developed to enhance bovine oocyte competence, although controversial results were obtained depending on the in vitro embryo production (IVP) system used in each laboratory. Thus, in the present work, we employed a reported cAMP protocol named Simulated Physiological Oocyte Maturation (SPOM) under our IVP system and analysed its effect on cytoplasmic maturation by measuring levels of stress-related genes and evaluating the activity and distribution of mitochondria as a marker for cytoplasmic maturation Moreover, we studied the effect of the cAMP treatment on nuclear maturation, cleavage, and blastocyst formation. Finally, we assessed the embryo quality by determining the hatching rates, total cell number per blastocyst, cryopreservation tolerance, and embryo implantation. We found that maturing oocytes in the presence of cAMP modulators did not affect nuclear maturation, although they changed the dynamic pattern of mitochondrial activity along maturation. Additionally, we found that oocytes subjected to cAMP modulators significantly improved blastocyst formation (15.5% vs. 22.2%, p < 0.05). Blastocysts derived from cAMP-treated oocytes did not improve cryopreservation tolerance but showed an increased hatching rate, a higher total cell number per blastocyst and, when transferred to hormonally synchronised recipients, produced pregnancies. These results reflect that the use of cAMP modulators during IVM results in competent oocytes that, after fertilisation, can develop in more blastocysts with a better quality than standard IVM conditions.
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Affiliation(s)
| | | | | | | | | | - Adrian Ángel Mutto
- Instituto de Investigaciones Biotecnológicas ‘Dr Rodolfo Ugalde’ (IIBIO), UNSAM-CONICET, Buenos Aires CP 1650, Argentina; (M.N.); (T.F.); (N.M.O.); (M.W.); (F.G.); (C.B.)
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Gualtieri R, De Gregorio V, Candela A, Travaglione A, Genovese V, Barbato V, Talevi R. In Vitro Culture of Mammalian Embryos: Is There Room for Improvement? Cells 2024; 13:996. [PMID: 38920627 PMCID: PMC11202082 DOI: 10.3390/cells13120996] [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: 04/30/2024] [Revised: 06/03/2024] [Accepted: 06/05/2024] [Indexed: 06/27/2024] Open
Abstract
Preimplantation embryo culture, pivotal in assisted reproductive technology (ART), has lagged in innovation compared to embryo selection advancements. This review examines the persisting gap between in vivo and in vitro embryo development, emphasizing the need for improved culture conditions. While in humans this gap is hardly estimated, animal models, particularly bovines, reveal clear disparities in developmental competence, cryotolerance, pregnancy and live birth rates between in vitro-produced (IVP) and in vivo-derived (IVD) embryos. Molecular analyses unveil distinct differences in morphology, metabolism, and genomic stability, underscoring the need for refining culture conditions for better ART outcomes. To this end, a deeper comprehension of oviduct physiology and embryo transport is crucial for grasping embryo-maternal interactions' mechanisms. Research on autocrine and paracrine factors, and extracellular vesicles in embryo-maternal tract interactions, elucidates vital communication networks for successful implantation and pregnancy. In vitro, confinement, and embryo density are key factors to boost embryo development. Advanced dynamic culture systems mimicking fluid mechanical stimulation in the oviduct, through vibration, tilting, and microfluidic methods, and the use of innovative softer substrates, hold promise for optimizing in vitro embryo development.
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Affiliation(s)
- Roberto Gualtieri
- Department of Biology, University of Naples ‘’Federico II’’, Complesso Universitario Di Monte S. Angelo, Via Cinthia, 80126 Naples, Italy; (V.D.G.); (A.C.); (A.T.); (V.G.); (V.B.); (R.T.)
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Kajaysri J, Intrarapuk A. The effectiveness of different hormone protocols for improving ovarian function before ovum pick-up in crossbred Japanese black cattle. Vet World 2024; 17:1362-1369. [PMID: 39077435 PMCID: PMC11283605 DOI: 10.14202/vetworld.2024.1362-1369] [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: 01/31/2024] [Accepted: 05/31/2024] [Indexed: 07/31/2024] Open
Abstract
Background and Aim Producing and transferring embryos in vitro are profitable for enhancing premium beef genetics. Reducing costs and enhancing the effectiveness of hormone protocols before ovum pick-up (OPU) yield advantages. This study aimed to confirm that estradiol benzoate (EB) treatment resulted in more medium- and large-sized follicles before OPU and of higher oocyte quality after OPU than non-hormonal treatments, comparable to those undergoing gonadotropin-releasing hormone (GnRH) with follicle-stimulating hormone (FSH) plus prostaglandin F2α (PGF2α) and progesterone-releasing controlled internal drug release (CIDR) or EB with progesterone-releasing CIDR hormonal treatments. Materials and Methods 30 crossbred Japanese black cows were divided into five equal groups, which were either untreated or treated with different hormone protocols before OPU. Group 1 (cows in estrus) and group 2 (cows in diestrus) were the untreated controls. Cows in group 3 were treated with GnRH + FSH + CIDR + PGF2α. Cows in group 4 received EB, and those in group 5 received EB + CIDR + PGF2α. After administering the protocols, all cow follicles were examined through ultrasonography and categorized by size. Subsequently, all cows underwent OPU, and the oocytes were collected and graded from A to D according to standard criteria. Results Group 3 presented the highest large follicle numbers, and groups 3-5 had more medium follicle numbers, not different among groups but they had this parameter more than those of control groups 1 and 2. Moreover, groups 3-5 did not differ in combined grades A + B oocytes (good-quality oocytes). Groups 3 and 4 had more A + B oocytes than control groups 1 and 2, whereas group 5 was not different in this parameter from group 1. Conclusion Among the three hormone protocols, EB treatment proved the most cost-effective and efficient, yielding more high-quality oocytes compared to the non-treatment protocols. To reduce the limitations of EB use in the future, this study suggests researching natural EB phytoestrogens as alternative treatments for improving ovarian function before OPU in other cattle breeds.
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Affiliation(s)
- Jatuporn Kajaysri
- Department of Science, Technology and Innovation, Faculty of Science, Chulabhorn Royal Academy, Bangkok, Thailand
| | - Apiradee Intrarapuk
- Department of Science, Technology and Innovation, Faculty of Science, Chulabhorn Royal Academy, Bangkok, Thailand
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20
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McGraw MS, Bishman JA, Daigneault BW. Efficiency of embryo complementation and pluripotency maintenance following multiple passaging of in vitro-derived bovine embryos. Reprod Fertil Dev 2024; 36:RD24018. [PMID: 38902907 DOI: 10.1071/rd24018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 05/28/2024] [Indexed: 06/22/2024] Open
Abstract
Context Current methods to obtain bovine embryos of high genetic merit include approaches that require skilled techniques for low-efficiency cloning strategies. Aims The overall goal herein was to identify the efficacy of alternative methods for producing multiple embryos through blastomere complementation while determining maintenance of cell pluripotency. Methods Bovine oocytes were fertilised in vitro to produce 4-cell embryos from which blastomeres were isolated and cultured as 2-cell aggregates using a well-of-the-well system. Aggregates were returned to incubation up to 7days (Passage 1). A second passage of complement embryos was achieved by splitting 4-cell Passage 1 embryos. Passaged embryos reaching the blastocyst stage were characterised for cell number and cell lineage specification in replicate with non-reconstructed zona-intact embryos. Key results Passage 1 and 2 embryo complements yielded 29% and 25% blastocyst development, respectively. Passage 1 embryos formed blastocysts, but with a reduction in expression of SOX2 and decreased size compared to non-reconstructed zona-intact embryos. Passage 2 embryos had a complete lack of SOX2 expression and a reduction in transcript abundance of SOX2 and SOX17, suggesting loss of pluripotency markers that primarily affected inner cell mass (ICM) and hypoblast formation. Conclusions In vitro fertilised bovine embryos can be reconstructed with multiple passaging to generate genetically identical embryos. Increased passaging drives trophectoderm cell lineage specification while compromising ICM formation. Implications These results may provide an alternative strategy for producing genetically identical bovine embryos through blastomere complementation with applications towards the development of trophoblast and placental models of early development.
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Affiliation(s)
- Maura S McGraw
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville, FL 32611, USA
| | - Jordan A Bishman
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville, FL 32611, USA
| | - Bradford W Daigneault
- Department of Animal Sciences, University of Florida, 2250 Shealy Drive, Gainesville, FL 32611, USA
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21
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Machado AF, Facioni Guimarães SE, Lollobrigida de S Netto D, Guimarães JD, Alves Torres CA, Sanglard LP, Gomez-Leon VE. Phenotypic and genetic relationships among anogenital distance, anti-Müllerian hormone, and in vitro embryo production in Gyr dairy cattle. J Dairy Sci 2024; 107:2512-2523. [PMID: 37863293 DOI: 10.3168/jds.2023-23497] [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: 03/16/2023] [Accepted: 09/25/2023] [Indexed: 10/22/2023]
Abstract
Anti-Müllerian hormone (AMH) concentration and number of recovered oocytes (ROOC) are phenotypic parameters associated with in vitro embryo production (IVEP). More recently, anogenital distance (AGD) has been proposed as a proxy for fertility in dairy cattle that is easy to collect at a low cost. The aim of this study was to characterize the AGD and its phenotypic and genetic associations with AMH and IVEP in Bos indicus Gyr dairy cattle. The hypothesis was that the number of ROOC, in vitro-produced embryos, and AMH concentration would increase as the AGD decreases. From July to December 2021, a single morphometrical measurement of AGD was collected in 552 donors from 6 herds in Brazil. A subset of donors had AMH assayed on the same day. Only ovum pick-up events that occurred up to 12 mo preceding and 7 mo succeeding the AGD measurement were used to assess the association between AGD, AMH, and IVEP. Thus, 472 donors (1,551 ovum pick-up events and 140 donors with AMH) were considered in the analysis. A raw average was calculated for each individual donor's ROOC, viable oocytes, total produced embryos, viability rate, and embryo rate (defined as total produced embryos/viable oocytes). Comparisons were conducted within the age categories of 3 to <6 yr or 6 to <10 yr. Phenotypic associations were performed in SAS software (SAS Institute Inc., Cary, NC). Genetic correlations were estimated using the BLUPF90 family of programs. The AGD (128.7 mm ± 14; mean ± standard deviation) had a normal distribution and was highly variable (83 to 172 mm) among the Gyr population. Our experimental hypothesis was partially supported by a phenotypic association of a greater number of total produced embryos (R2 = 0.023) as AGD decreased. Our results failed to support an increase in AMH concentration along with a decrease in AGD. In addition, positive and low genetic correlations were observed between AGD and viable oocytes (r = 0.08), and embryo rate (r = 0.20). A greater number of viable oocytes and embryos were observed in donors in the high compared with intermediate and low ROOC categories within both age categories. The age interval of 3 to <6 yr showed a greater number of recovered and viable oocytes for the high AMH compared with the low category, but no differences were observed among the AGD categories. In summary, for the Gyr breed, AGD was phenotypically inversely associated with a quantity-related parameter, such as the total number of produced embryos. In contrast, AGD showed a low genetic correlation with qualitative-related outcomes such as viable oocytes and embryo rate. Further studies should be performed to validate these retrospective analyses and to better understand the association between AGD and IVEP.
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Affiliation(s)
- Andréia Ferreira Machado
- Department of Animal Sciences and Industry, Kansas State University, Manhattan, KS 66506; Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil 36570
| | | | | | - José Domingos Guimarães
- Department of Veterinary Medicine, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil 36570
| | - Ciro A Alves Torres
- Department of Animal Science, Universidade Federal de Viçosa, Viçosa, Minas Gerais, Brazil 36570
| | - Leticia P Sanglard
- Department of Animal Science, University of Nebraska-Lincoln, Lincoln, NE 68583
| | - Victor E Gomez-Leon
- Department of Animal Sciences and Industry, Kansas State University, Manhattan, KS 66506.
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22
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Kabeer SW, Riaz A, Ul-Rahman A, Shahbakht RM, Anjum A, Khera HURA, Haider A, Riaz F, Yasin R, Yaseen M, Saleem M, Bano N, Raza MA, Khan JA. Effect of different concentrations of resveratrol on nuclear maturation and in-vitro development competence of oocytes of Nili Ravi buffalo. Trop Anim Health Prod 2024; 56:105. [PMID: 38502249 DOI: 10.1007/s11250-024-03952-w] [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: 05/18/2023] [Accepted: 03/01/2024] [Indexed: 03/21/2024]
Abstract
Buffaloes are considered animals of the future with the ability to survive under unfavorable conditions. However, the lack of access to superior germplasm poses a significant challenge to increasing buffalo production. Resveratrol has been shown to improve oocyte quality and developmental competence in various animals during in vitro embryo development. However, limited information is available on the use of resveratrol to improve the in vitro maturation and development competence of Nili Ravi buffalo oocytes. Therefore, the current study aimed to investigate the influence of different concentrations of resveratrol on the maturation, fertilization, and development of buffalo oocytes under in vitro conditions. Oocytes were collected from ovaries and subjected to in vitro maturation (IVM) using varying concentrations of resveratrol (0 µM, 0.5 µM, 1 µM, 1.5 µM, and 2 µM), and the maturation process was assessed using a fluorescent staining technique. Results indicated no significant differences in oocyte maturation, morula rate, and blastocyst rate among the various resveratrol concentrations. However, the cleavage rate notably increased with 1 µM and 1.5 µM concentrations of resveratrol (p < 0.05). In conclusion, the study suggests that adding 1 µM of resveratrol into the maturation media may enhance the cleavage and blastocyst hatching of oocytes of Nili Ravi buffaloes. These findings hold promise for advancing buffalo genetics, reproductive performance, and overall productivity, offering potential benefits to the dairy industry, especially in Asian countries.
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Affiliation(s)
- Samar Wafa Kabeer
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan.
| | - Amjad Riaz
- Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Aziz Ul-Rahman
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan.
| | - Rana Muhammad Shahbakht
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Ahsan Anjum
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Hafeez Ur Rehman Ali Khera
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Ali Haider
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Faisal Riaz
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Riffat Yasin
- Department of Zoology, University of Education, D.G Khan Campus, Dera Ghazi Khan, Pakistan
| | - Muhammad Yaseen
- Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Muhammad Saleem
- Department of Theriogenology, University of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Naheed Bano
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Muhammad Asif Raza
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
| | - Junaid Ali Khan
- Faculty of Veterinary and Animal Sciences, Muhammad Nawaz Shareef University of Agriculture, Multan, 66000, Pakistan
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23
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Pranomphon T, Mahé C, Demattei MV, Papillier P, Vitorino Carvalho A, Reynaud K, Almiñana C, Bauersachs S, Parnpai R, Mermillod P, Saint-Dizier M. Characterization of oviduct epithelial spheroids for the study of embryo-maternal communication in cattle. Theriogenology 2024; 217:113-126. [PMID: 38271765 DOI: 10.1016/j.theriogenology.2024.01.022] [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: 09/15/2023] [Revised: 01/18/2024] [Accepted: 01/19/2024] [Indexed: 01/27/2024]
Abstract
Most in vitro models of oviduct epithelial cells (OEC) used thus far to gain insights into embryo-maternal communication induce cell dedifferentiation or are technically challenging. Moreover, although the presence of developing embryos has been shown to alter gene expression in OEC, the effect of embryos on OEC physiology remains largely unknown. Here, we propose a model based on bovine oviduct epithelial spheroids (OES) with specific shape and diameter (100-200 μm) criteria. The aims of this study were to i) determine the appropriate culture conditions of bovine OES cultured in suspension by evaluating their morphology, total cell number, viability, and activity of ciliated cells; ii) monitor gene expression in OES at the time of their formation (day 0) and over the 10 days of culture; and iii) test whether the vicinity of developing embryos affects OES quality criteria. On day 10, the proportions of vesicle-shaped OES (V-OES) were higher in M199/500 (500 μl of HEPES-buffered TCM-199) and synthetic oviduct fluid (SOF)/25 (25-μL droplet of SOF medium under mineral oil) than in M199/25 (25-μL droplet of M199 under mineral oil). The proportion of viable cells in V-OES was not affected by culture conditions and remained high (>80%) through day 10. The total number of cells per V-OES decreased over time except in SOF/25, while the proportions of ciliated cells increased over time in M199/500 but decreased in M199/25 and SOF/25. The movement amplitude of OES in suspension decreased over time under all culture conditions. Moreover, the gene expression of ANXA1, ESR1, HSPA8, and HSPA1A in OES remained stable during culture, while that of PGR and OVGP1 decreased from day 0 to day 10. Last, the co-culture of developing embryos with OES in SOF/25 increased the rates of blastocysts on days 7 and 8 compared to embryos cultured alone, and increased the proportion of V-OES compared to OES cultured alone. In conclusion, M199/500 and SOF/25 provided the optimal conditions for the long-time culture of OES. The supporting effect of OES on embryo development and of developing embryos on OES morphology was evidenced for the first time. Altogether, these results point OES as an easy-to-use, standardizable, and physiological model to study embryo-maternal interactions in cattle.
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Affiliation(s)
- Thanya Pranomphon
- CNRS, INRAE, University of Tours, PRC, Nouzilly, 37380, France; Embryo Technology and Stem Cell Research Center, School of Biotechnology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
| | - Coline Mahé
- CNRS, INRAE, University of Tours, PRC, Nouzilly, 37380, France
| | | | | | | | - Karine Reynaud
- CNRS, INRAE, University of Tours, PRC, Nouzilly, 37380, France
| | - Carmen Almiñana
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, 8315, Lindau (ZH), Switzerland
| | - Stefan Bauersachs
- Institute of Veterinary Anatomy, Vetsuisse Faculty, University of Zurich, 8315, Lindau (ZH), Switzerland
| | - Rangsun Parnpai
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand.
| | | | - Marie Saint-Dizier
- CNRS, INRAE, University of Tours, PRC, Nouzilly, 37380, France; Tours University, Faculty of Sciences and Techniques, Tours, 37200, France.
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24
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Perez Guerra UH, Quispe Barriga YM, Luque Mamani N, Ruelas Calloapaza DA, Palomino Cano JM, Pérez Durand MG. Comparison of superstimulatory protocols with different doses of eCG on ovarian response and oocyte recovery by follicular aspiration in llamas ( Lama glama). Anim Reprod 2024; 21:e20220134. [PMID: 38510566 PMCID: PMC10954232 DOI: 10.1590/1984-3143-ar2022-0134] [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: 05/21/2023] [Accepted: 12/15/2023] [Indexed: 03/22/2024] Open
Abstract
The objective of this study was to evaluate the effect of three doses of equine chorionic gonadotropin (eCG) for ovarian superstimulation on ovarian response, follicular development and cumulus-oocyte complexes (COCs) collection in llamas. For this purpose, eighteen multiparous non-lactating adult (4-7 yo) female llamas with an average body condition of 2.8 (BCS 1-5) were submitted to a follicular ablation (FA) to induce a new follicular wave emergence. Two days after FA (Day 0), synchronized llamas were randomly allocated to three treatment groups (n = 6/group) and given 500, 750 and 1000 IU of eCG (Novormon®, Syntex, Buenos Aires, Argentina) per animal respectively to induce ovarian superstimulation. Transrectal ultrasonography were performed on Days 2, 4, and 6; and ovum pick up (OPU) was performed on Day 6. Data was evaluated by one-way analysis of variance (ANOVA), repeated measures ANOVA, and 2-tailed Chi-square. The average size (mm) of follicles was greater (p≤ 0.05) in the 1000 IU group compared to the other groups. There was a greater (p≤ 0.05) number of follicles ≥ 7 mm in the 1000 IU group compared to the 500 IU group. Number of COCs collected on Day 6 and the COC recovery rate were not different among groups. In conclusion, a single dose of 1000 IU of eCG induced the best ovarian response resulting in larger and greater number of follicles at the time of OPU.
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Affiliation(s)
- Uri Harold Perez Guerra
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional del Altiplano, Puno, Perú
| | | | - Natalio Luque Mamani
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional del Altiplano, Puno, Perú
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25
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Hasbi H, Iskandar H, Sonjaya H, Purwantara B, Arifiantini RI, Agil M, Pardede BP, Suyadi S, Septian WA, Samsudewa D, Damayanti E, Maulana T, Said S. Comparative developmental competence of in vitro embryos recovered from Bali cattle with normal and poor sperm motility. Vet World 2024; 17:593-601. [PMID: 38680141 PMCID: PMC11045541 DOI: 10.14202/vetworld.2024.593-601] [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: 11/17/2023] [Accepted: 02/16/2024] [Indexed: 05/01/2024] Open
Abstract
Background and Aim Fertility is crucial for enhancing the efficiency of livestock production, as it directly impacts the reproductive rates. A comprehensive understanding of the relationship between sperm quality and embryo development is key to optimizing reproductive outcomes and improving the quality of livestock. This study analyzed the developmental competence of in vitro embryos recovered from Bali cattle with normal or poor sperm motility. Materials and Methods Nine bulls with normal fresh semen (NFS) or poor fresh semen (PFS) motility were ejaculated for semen. Semen ejaculates, including volume, motility, and sperm concentration, were evaluated immediately after collection to measure the quality of the fresh semen. Frozen semen was evaluated using computer-assisted semen analysis (CASA) for motility, progressive sperm motility, distance curve path, distance curve linear, distance straight line, average path velocity, curvilinear velocity, linear velocity, straightness (STR), linearity of forward progression (LIN), wobble, and average lateral head displacement (ALH). Bull groups were used to determine in vitro embryo cleavage ability after fertilization of Bali cattle. Ovaries of Bali cattle were collected by slicing, and only cytoplasmic oocytes with compact cumulus cells were used in this study. The oocytes were matured, and in vitro fertilization was performed using fertilization media with a final sperm concentration of 1.5 × 106 spermatozoa/mL. After 48 h, the embryo cleavage ability of the cultured oocytes was evaluated. Results There were significant differences in motility values between the NFS and PFS groups; however, there were no significant differences in the volume or sperm concentration. There was a significant difference in the LIN value between the groups but no significant differences in other CASA parameters. There were no significant differences in the cleavage rate and morula between the groups, but a positive correlation was observed between the cleavage rate and the morula and between the morula and ALH. A significant negative correlation was observed between the cleavage rate and STR and between the morula and STR; no significant differences were observed for other variables. Conclusion Despite variations in sperm characteristics, both normal and poor sperm motility demonstrated comparable in vitro embryonic development competence. These findings provide important insights into the fertility potential of Bali bulls, providing valuable information that can enhance selection strategies to improve the quality of livestock production.
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Affiliation(s)
- Hasbi Hasbi
- Department of Animal Production, Faculty of Animal Science, Hasanuddin University, Makassar, 90245, Indonesia
| | - Hikmayani Iskandar
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Bogor, 16914, Indonesia
| | - Herry Sonjaya
- Department of Animal Production, Faculty of Animal Science, Hasanuddin University, Makassar, 90245, Indonesia
| | - Bambang Purwantara
- Division of Reproduction and Obstetrics, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, 16680, Indonesia
| | - Raden Iis Arifiantini
- Division of Reproduction and Obstetrics, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, 16680, Indonesia
| | - Muhammad Agil
- Division of Reproduction and Obstetrics, School of Veterinary Medicine and Biomedical Sciences, IPB University, Bogor, 16680, Indonesia
| | - Berlin Pandapotan Pardede
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Bogor, 16914, Indonesia
| | - Suyadi Suyadi
- Faculty of Animal Science, Brawijaya University, Malang, 65145, Indonesia
| | - Wike Andre Septian
- Faculty of Animal Science, Brawijaya University, Malang, 65145, Indonesia
| | - Daud Samsudewa
- Department of Animal Science, Faculty of Animal and Agricultural Sciences, Diponegoro University, Semarang, 50275, Indonesia
| | - Erni Damayanti
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Bogor, 16914, Indonesia
| | - Tulus Maulana
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Bogor, 16914, Indonesia
| | - Syahruddin Said
- Research Center for Applied Zoology, National Research and Innovation Agency (BRIN), Bogor, 16914, Indonesia
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Homobono BP, das Mercês MO, Nogueira LHDS, de Souza EB, Cardoso APL, Santos ABS, Ramos ADS, Costa MHP, Santana PDPB, de Almeida NNDC, Cordeiro MS, Santos SDSD. Fertilization with follicular fluid reduces HSP70 and BAX expression on bovine in vitro embryos. Reprod Domest Anim 2024; 59:e14548. [PMID: 38459830 DOI: 10.1111/rda.14548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 01/02/2024] [Accepted: 02/21/2024] [Indexed: 03/10/2024]
Abstract
The in vivo fertilization process occurs in the presence of follicular fluid (FF). The aim of this study was to evaluate the effect of in vitro fertilization medium supplementation with 5% or 10% bovine follicular fluid (BFF) on the production of in vitro bovine embryos. FF was collected from ovarian follicles with a diameter of 8-10 mm, and cumulus-oocyte complexes (COCs) were co-incubated with sperm for 24 h in the commercial medium BotuFIV® (BotuPharma©), being distributed among the experimental groups: oocytes fertilized in a control medium; oocytes fertilized in a medium supplemented with 5% BFF; and oocytes fertilized in a medium supplemented with 10% BFF. After fertilization, the zygotes were cultured in vitro for 8 days. Embryo development was assessed through cleavage rates (day 2) and blastocyst formation rates (day 8). The relative expression of the genes OCT4, IFNT2, BAX, HSP70 and SOD2 was measured using the real-time polymerase chain reaction method. There was no difference (p > .05) among the different experimental groups in terms of cleavage rates and blastocyst formation rates. Regarding the gene expression results, only the blastocysts from oocytes fertilized with 10% BFF showed significantly lower expression of IFNT2 (p = .003) and SOD2 (p = .01) genes compared to blastocysts from oocytes fertilized in control medium alone, while there was no difference between blastocyst from oocytes fertilized in control medium and the ones from oocytes fertilized with 5% BFF. In addition to this, the blastocysts from oocytes fertilized with 5% BFF showed significantly reduced levels of expression of the heat shock protein HSP70 (p < .001) and the pro-apoptotic protein BAX (p = .015) compared to blastocysts from oocytes fertilized with control medium. This may indicate that lower supplementation of BFF to the IVF medium creates a more suitable environment for fertilization and is less stressful for the zygote.
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27
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Miyashita N, Akagi S, Somfai T, Hirao Y. Serum-free spontaneously immortalized bovine oviduct epithelial cell conditioned medium promotes the early development of bovine in vitro fertilized embryos. J Reprod Dev 2024; 70:42-48. [PMID: 38246613 PMCID: PMC10902639 DOI: 10.1262/jrd.2023-031] [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: 03/28/2023] [Accepted: 12/14/2023] [Indexed: 01/23/2024] Open
Abstract
Embryonic transfer of bovine blastocysts produced using in vitro fertilization (IVF) is widely used, although the challenge of compromised conception rates remains. Using bovine oviduct epithelial cells (BOEC) to improve embryo culture conditions has attracted attention, particularly since the recent discovery of extracellular vesicles from BOEC. The selection of embryos for transfer has also been the subject of various studies, and a set of evaluation criteria to predict pregnancy success has been suggested, in which the embryos are judged by their kinetics and morphology at the early stages. In the present study, we established a spontaneously immortalized BOEC line (SI-BOEC) and examined the effects of conditioned medium on IVF embryos, focusing on the results of the recommended criteria. A modified KSOM (mKSOM) was used to prepare conditioned media. Presumptive zygotes were cultured in mKSOM (control), SI-BOEC-conditioned medium, mKSOM supplemented with sediment (pellet) collected after the ultracentrifugation of the conditioned medium (mKSOM/sediment), and the supernatant. A significantly higher percentage of embryos satisfied the recommended criteria when grown in the conditioned medium than in the mKSOM. A higher proportion of embryos developed into blastocysts after achieving the four criteria. A similar tendency was observed when grown in mKSOM/sediment compared to mKSOM; however, this was not observed in the supernatant. Vesicles with a size similar to that of exosomes were observed in the sediment. In conclusion, the culture medium conditioned by SI-BOEC promoted the production of bovine blastocysts that satisfied the four evaluation criteria recommended for embryo selection.
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Affiliation(s)
- Norikazu Miyashita
- Division of Dairy Cattle Feeding and Breeding Research, Institute of Livestock and Grassland Science, NARO, Ibaraki 305-0901, Japan
| | - Satoshi Akagi
- Division of Dairy Cattle Feeding and Breeding Research, Institute of Livestock and Grassland Science, NARO, Ibaraki 305-0901, Japan
| | - Tamas Somfai
- Division of Biomaterial Sciences, Institute of Agrobiological Sciences, NARO, Ibaraki 305-8518, Japan
| | - Yuji Hirao
- Division of Dairy Cattle Feeding and Breeding Research, Institute of Livestock and Grassland Science, NARO, Ibaraki 305-0901, Japan
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28
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Verruma CG, Santos RS, Marchesi JAP, Sales SLA, Vila RA, Rios ÁFL, Furtado CLM, Ramos ES. Dynamic methylation pattern of H19DMR and KvDMR1 in bovine oocytes and preimplantation embryos. J Assist Reprod Genet 2024; 41:333-345. [PMID: 38231285 PMCID: PMC10894807 DOI: 10.1007/s10815-023-03011-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 12/19/2023] [Indexed: 01/18/2024] Open
Abstract
PURPOSE This study aimed to evaluate the epigenetic reprogramming of ICR1 (KvDMR1) and ICR2 (H19DMR) and expression of genes controlled by them as well as those involved in methylation, demethylation, and pluripotency. METHODS We collected germinal vesicle (GV) and metaphase II (MII) oocytes, and preimplantation embryos at five stages [zygote, 4-8 cells, 8-16 cells, morula, and expanded blastocysts (ExB)]. DNA methylation was assessed by BiSeq, and the gene expression was evaluated using qPCR. RESULTS H19DMR showed an increased DNA methylation from GV to MII oocytes (68.04% and 98.05%, respectively), decreasing in zygotes (85.83%) until morula (61.65%), and ExB (63.63%). H19 and IGF2 showed increased expression in zygotes, which decreased in further stages. KvDMR1 was hypermethylated in both GV (71.82%) and MII (69.43%) and in zygotes (73.70%) up to morula (77.84%), with a loss of methylation at the ExB (36.64%). The zygote had higher expression of most genes, except for CDKN1C and PHLDA2, which were highly expressed in MII and GV oocytes, respectively. DNMTs showed increased expression in oocytes, followed by a reduction in the earliest stages of embryo development. TET1 was downregulated until 4-8-cell and upregulated in 8-16-cell embryos. TET2 and TET3 showed higher expression in oocytes, and a downregulation in MII oocytes and 4-8-cell embryo. CONCLUSION We highlighted the heterogeneity in the DNA methylation of H19DMR and KvDMR1 and a dynamic expression pattern of genes controlled by them. The expression of DNMTs and TETs genes was also dynamic owing to epigenetic reprogramming.
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Affiliation(s)
- Carolina G Verruma
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Renan S Santos
- Postgraduate Program in Physiology and Pharmacology, Drug Research and Development Center (NPDM), Federal University of Ceara (UFC), Fortaleza, CE, 60430-275, Brazil
| | - Jorge A P Marchesi
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Sarah L A Sales
- Postgraduate Program in Physiology and Pharmacology, Drug Research and Development Center (NPDM), Federal University of Ceara (UFC), Fortaleza, CE, 60430-275, Brazil
| | - Reginaldo A Vila
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil
| | - Álvaro F L Rios
- Biotechnology Laboratory, Center of Bioscience and Biotechnology, State University of North Fluminense Darcy Ribeiro, Goitacazes Campus, Rio de Janeiro, Brazil
| | - Cristiana L M Furtado
- Experimental Biology Center, Graduate Program in Medical Sciences, University of Fortaleza - UNIFOR, Fortaleza, CE, 60811-905, Brazil
- Drug Research and Development Center (NPDM), Postgraduate Program in Translational Medicine, Federal University of Ceara (UFC), Fortaleza, CE, 60430-275, Brazil
| | - Ester S Ramos
- Department of Genetics, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, 14049-900, Brazil.
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Anchordoquy JP, Balbi M, Farnetano NA, Giuliodori MJ, Nikoloff N, Carranza-Martín AC, Furnus CC, Anchordoquy JM. Effect of follicular wave synchronization using a progesterone-releasing intravaginal device-based protocol on in vitro embryo production in Bos taurus cows subjected to 14-day intervals ovum pick-up. Anim Reprod Sci 2024; 261:107397. [PMID: 38134500 DOI: 10.1016/j.anireprosci.2023.107397] [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: 05/23/2023] [Revised: 11/03/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023]
Abstract
Follicular wave synchronization (FWS) before ovum pick-up (OPU) is one of the strategies used to improve the efficiency of in vitro embryo production (IVP). This study aimed to evaluate the effect of FWS on the total follicular number, cumulus-oocyte complex (COC) recovery, and in vitro embryo development in Angus cows (n = 33) subjected to OPU with 14-day intersession intervals. Additionally, it was also evaluated the presence of carryover effects given the short intersession interval used. The experiment was run as a 2-treatment (FWS vs. Control) x 2-period (1 vs. 2) crossover design. Animals in the FWS group received an intravaginal progesterone implant (1gr), estradiol benzoate (2 mg), and D-cloprostenol (150 μg) on day 0 and the OPU was performed on day 5. Control group animals did not receive any hormone treatment. The FWS increased the number of 6-10 mm follicles (P = 0.05), but it decreased the COC recovery rate (P < 0.01). The FWS did not affect the total or frozen embryo numbers (P = 0.49 and P = 0.17; respectively), but it increased the total blastocyst cell number (P < 0.01). A carryover effect was found on the total and < 6 mm follicles number (P = 0.10 and P < 0.01; respectively), and on the regular, atretic, viable, and total number of COC (P = 0.01, P = 0.08, P = 0.02 and P < 0.01; respectively). We concluded that the FWS increased the quality of embryos after OPU with 14-day intersession intervals in Angus cows and that this kind of OPU/IVP scheme enabled the existence of a carryover effect, especially on the follicle number and COC morphology.
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Affiliation(s)
- Juan Patricio Anchordoquy
- IGEVET - Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina; Cátedra de Fisiología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Marianela Balbi
- IGEVET - Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Nicolás A Farnetano
- IGEVET - Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Mauricio J Giuliodori
- Cátedra de Fisiología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina; INIRA - Instituto de Investigaciones en Reproducción Animal (UNLP-CONICET La Plata), Facultad de Ciencias Veterinarias-Universidad Nacional de La Plata, Buenos Aires, Argentina.
| | - Noelia Nikoloff
- IGEVET - Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Ana C Carranza-Martín
- IGEVET - Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Cecilia C Furnus
- IGEVET - Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina
| | - Juan Mateo Anchordoquy
- IGEVET - Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina; Cátedra de Fisiología, Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, Buenos Aires, Argentina
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Juengel JL, Reader KL, Maclean PH, Quirke LD, Zellhuber-McMillan S, Haack NA, Heiser A. The role of the oviduct environment in embryo survival. Reprod Fertil Dev 2024; 36:RD23171. [PMID: 38402905 DOI: 10.1071/rd23171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/01/2024] [Indexed: 02/27/2024] Open
Abstract
CONTEXT Declining fertility is an issue in multiple mammalian species. As the site of fertilisation and early embryo development, the oviduct plays a critical role in embryo survival, yet there is a paucity of information on how the oviduct regulates this process. AIMS We hypothesised that differences in steroid hormone signalling and/or immune function would be observed in a model of poor embryo survival, the peripubertal ewe. METHODS We examined expression of steroid hormones in systemic circulation, oviductal expression of oestrogen receptorαand genes important in steroid hormone signalling, and immune function in pregnant and cyclic peripubertal and adult ewes on day 3 after oestrus. KEY RESULTS Concentrations of progesterone, but not oestradiol, were decreased in the peripubertal ewe compared to the adult ewe. Oestrogen receptorαprotein expression was increased in the peripubertal ewe, but pathway analysis of gene expression revealed downregulation of the oestrogen signalling pathway compared to the adult ewe. Differential expression of several genes involved in immune function between the peripubertal and adult ewe was consistent with an unfavourable oviductal environment in the peripubertal ewe lamb. Oestradiol concentration was positively correlated with the expression of multiple genes involved in the regulation of immune function. CONCLUSIONS Differences in the immune environment of the oviduct, potentially linked to differential modulation by steroid hormones, may partially underly the poor fertilisation and early embryo survival observed in the peripubertal ewe. IMPLICATIONS A unfavourable oviductal environment may play an important role in limiting reproductive success.
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Affiliation(s)
- Jennifer L Juengel
- Agricultural Systems and Reproduction, AgResearch Ltd, Invermay Agricultural Centre, Mosgiel 9092, New Zealand
| | - Karen L Reader
- Department of Pathology, University of Otago, Dunedin 9016, New Zealand
| | - Paul H Maclean
- Bioinformatics and Statistics, AgResearch Ltd, Grasslands Research Centre, Private Bag 11008, Palmerston North, New Zealand
| | - Laurel D Quirke
- Agricultural Systems and Reproduction, AgResearch Ltd, Invermay Agricultural Centre, Mosgiel 9092, New Zealand
| | | | - Neville A Haack
- Animal Health Solutions, Hopkirk Research Institute, AgResearch Ltd, Private Bag 11008, Palmerston North 4442, New Zealand
| | - Axel Heiser
- Animal Health Solutions, Hopkirk Research Institute, AgResearch Ltd, Private Bag 11008, Palmerston North 4442, New Zealand
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Tsopp E, Kilk K, Taalberg E, Pärn P, Viljaste-Seera A, Kavak A, Jaakma Ü. Associations of the Single Bovine Embryo Growth Media Metabolome with Successful Pregnancy. Metabolites 2024; 14:89. [PMID: 38392981 PMCID: PMC10890179 DOI: 10.3390/metabo14020089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/20/2024] [Accepted: 01/23/2024] [Indexed: 02/25/2024] Open
Abstract
This study investigated whether metabolomic fingerprints of bovine embryo growth media improve the prediction of successful embryo implantation. In this prospective cohort study, the metabolome from in vitro-produced day 7 blastocysts with successful implantation (n = 11), blastocysts with failed implantation (n = 10), and plain culture media without embryos (n = 5) were included. Samples were analyzed using an AbsoluteIDQ® p180 Targeted Metabolomics Kit with LC-MS/MS, and a total of 189 metabolites were analyzed from each sample. Blastocysts that resulted in successful embryo implantation had significantly higher levels of methionine sulfoxide (p < 0.001), DOPA (p < 0.05), spermidine (p < 0.001), acetylcarnitine-to-free-carnitine ratio (p < 0.05), C2 + C3-to-free-carnitine ratio (p < 0.05), and lower levels of threonine (nep < 0.001) and phosphatidylcholine PC ae C30:0 (p < 0.001) compared to control media. However, when compared to embryos that failed to implant, only DOPA, spermidine, C2/C0, (C2 + C3)/C0, and PC ae C30:0 levels differentiated significantly. In summary, our study identifies a panel of differential metabolites in the culture media of bovine blastocysts that could act as potential biomarkers for the selection of viable blastocysts before embryo transfer.
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Affiliation(s)
- Elina Tsopp
- Chair of Animal Breeding and Biotechnology, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
| | - Kalle Kilk
- Department of Biochemistry, Institute of Biomedicine and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
| | - Egon Taalberg
- Department of Biochemistry, Institute of Biomedicine and Translational Medicine, University of Tartu, 50411 Tartu, Estonia
| | - Pille Pärn
- Chair of Animal Breeding and Biotechnology, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
| | - Anni Viljaste-Seera
- Chair of Animal Breeding and Biotechnology, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
| | - Ants Kavak
- Chair of Clinical Veterinary Medicine, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
| | - Ülle Jaakma
- Chair of Animal Breeding and Biotechnology, Institute of Veterinary Medicine and Animal Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
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Bicici E, Satilmis F, Bodu M, Demirel MA, Karakas Alkan K, Alkan H. Effect of putrescine supplementation to in vitro maturation medium on embryo development and quality in cattle. Anim Biotechnol 2023; 34:3887-3896. [PMID: 37466367 DOI: 10.1080/10495398.2023.2236660] [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] [Indexed: 07/20/2023]
Abstract
This study aimed to investigate the effect of putrescine supplementation to maturation medium during in vitro embryo production in cattle on maturation and embryo development/quality. Oocytes obtained from the ovaries of Holstein cattle were used in the study. Obtained cumulus-oocyte complexes were evaluated according to morphological structure, cytoplasmic features, and cumulus cell number, and only Category-I ones were used in the study. Before the in vitro maturation step, oocytes were randomly divided into two groups. In the first group (Putrescine group, n = 159), 0.5 mM putrescine was added to the maturation medium before in vitro maturation. No addition was applied to the maturation medium of the second group (Control group, n = 149). Cumulus expansion degrees of oocytes following maturation (Grade I: poor, Grade II: partial, and Grade III: complete) were determined. In addition, the meiosis of oocytes after maturation was evaluated by differential staining. Then the oocytes were left for fertilization with sperm and finally, possible zygotes were transferred to the culture medium. After determining the developmental stages and quality of the embryos after in vitro culture, only the embryos at the blastocyst stage were stained with the differential staining method to determine the cell numbers. When the cumulus expansion degrees of the groups were evaluated, the Grade III cumulus expansion rate in the putrescine group was higher than the control group (74.21% and 60.4%; respectively) and the Grade I expansion rate (11.95% and 26.17%; respectively) was found lower (p < .05). When the resumption of meiosis was evaluated according to the cumulus expansion degrees, it was determined that the rate of resumption of meiosis increased as the cumulus expansion increased. In addition, the cleavage rates of oocytes and reaching the blastocyst in the putrescine group were found to be higher than in the control group (p < .05). Moreover, inner cell mass, trophectoderm cells, and total cell counts were found to be higher in blastocysts obtained after the putrescine supplementation to the maturation medium compared to the control group (p < .05). As a result, it was determined that the putrescine supplementation to the maturation medium during in vitro embryo production in cattle increased the degree of cumulus expansion and the rate of resumption of meiosis. In addition, putrescine supplementation was thought to increase the rate of reaching the blastocyst of oocytes due to better cell development in embryos.
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Affiliation(s)
- Esra Bicici
- Department of Obstetrics and Gynecology, Selcuk University, Konya, Turkey
| | - Fatma Satilmis
- Department of Obstetrics and Gynecology, Selcuk University, Konya, Turkey
| | - Mustafa Bodu
- Department of Reproduction and Artificial Insemination, Selcuk University, Konya, Turkey
| | | | | | - Hasan Alkan
- Department of Obstetrics and Gynecology, Selcuk University, Konya, Turkey
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Hasler JF. Looking back at five decades of embryo technology in practice. Reprod Fertil Dev 2023; 36:1-15. [PMID: 38064185 DOI: 10.1071/rd23120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023] Open
Abstract
This paper covers developments from International Embryo Technology Society (IETS) meetings over the past 50years. The IETS was officially 'born' at a meeting in Denver, Colorado on Sunday 26 May 1974. There have been 51 IETS meetings (the first was in May 1974), and the first conference at which papers were presented was in 1975. The name of the IETS was changed from International Embryo Transfer Society to International Embryo Technology Society in 2016. The annual IETS conferences are held once a year in January. Embryo technology advanced from the laborious and slow techniques of surgical recovery and transfer of bovine embryos to non-surgical recovery and transfer in many species. Cryopreservation of embryos was initially a slow process that met with only moderate technical success before the development of technology that resulted in high embryo survival rates. The polymerase chain reaction was used to determine the sex of embryos following laminar flow cytology, which came into use to separate X- and Y-bearing spermatozoa. IVF has grown to become widely used, and several factors make it more useful than superovulation and embryo recovery/transfer. Perhaps the most important tool of all was the system that allowed the genetic 'mapping' of the genomic sequence of Bos taurus cattle. Charting key DNA differences by scientists, 'haplotypes' are now used routinely to identify animals with desirable traits of economic importance, discover new genetic disorders, and track carrier status of genotyped animals. Future technology is discussed.
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Affiliation(s)
- John F Hasler
- Vetoquinol USA, Inc., 4250 N. Sylvania Ave, Fort Worth, TX 76137, USA
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Suqueli García MF, Gabbanelli N, Ríos GL, Buschiazzo J. Exogenous progesterone during in vitro fertilization improves developmental competence of partially cumulus-denuded bovine oocytes. Theriogenology 2023; 211:11-18. [PMID: 37556930 DOI: 10.1016/j.theriogenology.2023.07.036] [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: 04/25/2023] [Revised: 06/24/2023] [Accepted: 07/26/2023] [Indexed: 08/11/2023]
Abstract
The progesterone (P4) secreted by cumulus cells has gained attention for its role as a possible physiological inducer of sperm acrosome exocytosis. In mammals, it is generally accepted that fertilization rates of oocytes without cumulus are markedly low. This study assessed the integrity of capacitated bovine sperm acrosome when exposed to increasing concentrations of P4, and evaluated whether exogenous P4 during in vitro fertilization (IVF) increases the developmental competence of partially cumulus-denuded oocytes in serum-free conditions. After a 4-h capacitation induction, sperm were incubated with increasing concentrations of P4 (0, 0.1, 10 and 100 μM) and evaluated for viability, caspase activation and acrosome status at three different times (4, 5, and 22 h), including the capacitation induction period. Progesterone induced sperm acrosomal exocytosis without compromising sperm viability or activating sperm caspases. Sperm undergoing acrosome reaction exhibited three differential Concanavalin A patterns, corresponding to early, intermediate and late acrosomal exocytosis. The percentage of these patterns significantly increased over time, regardless of P4 concentration, except for those spermatozoa with late acrosomal exocytosis, which only showed an increase at 22 h of incubation. After incubation for 1 h with 100 μM P4, spermatozoa showing intermediate acrosomal exocytosis significantly increased. At 22 h of incubation, the pattern corresponding to early acrosomal exocytosis evidenced a dose-dependent increase. However, prematurely high levels of acrosome reaction induced by 100 μM P4 led to inefficient IVF outcomes (P < 0.05). Therefore, IVF trials with partially cumulus-denuded oocytes were carried out with lower P4 concentrations (0, 0.1, 1, 5, 10 μM). Cleavage rate significantly increased at 1 μM P4, which translated to increased total embryo production after 7 days of in vitro culture (P < 0.05). Significantly higher percentages of expanded blastocysts were observed at both 1 μM and 10 μM P4 as compared to the other experimental conditions. In conclusion, the different patterns of acrosomal exocytosis identified over time by incubation of live sperm with a fluorescent lectin revealed the existence of sperm subpopulations heterogeneous in their physiological states. Moreover, exogenous P4 at 1 μM during IVF improved the developmental competence of partially cumulus-denuded oocytes in serum-free conditions.
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Affiliation(s)
- María Florencia Suqueli García
- Laboratorio Biotecnología de la Reproducción, Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ruta 226 km 73.5, 7620, Balcarce, Argentina.
| | - Nadia Gabbanelli
- Laboratorio Biotecnología de la Reproducción, Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ruta 226 km 73.5, 7620, Balcarce, Argentina.
| | - Glenda Laura Ríos
- Laboratorio Biotecnología de la Reproducción, Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ruta 226 km 73.5, 7620, Balcarce, Argentina.
| | - Jorgelina Buschiazzo
- Laboratorio Biotecnología de la Reproducción, Instituto de Innovación para la Producción Agropecuaria y el Desarrollo Sostenible (IPADS Balcarce), Instituto Nacional de Tecnología Agropecuaria (INTA)-Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ruta 226 km 73.5, 7620, Balcarce, Argentina.
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Hayden CB, Sala RV, Pereira DC, Moreno JF, García-Guerra A. Effect of use and dosage of p-follicle-stimulating hormone for ovarian superstimulation before ovum pick-up and in vitro embryo production in pregnant Holstein heifers. J Dairy Sci 2023; 106:8110-8121. [PMID: 37641305 DOI: 10.3168/jds.2023-23576] [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: 04/04/2023] [Accepted: 05/26/2023] [Indexed: 08/31/2023]
Abstract
The benefit of ovarian superstimulation using exogenous FSH before ovum pick-up (OPU) and in vitro embryo production (IVEP) has been the subject of conflicting results. The objective of the present study, therefore, was to evaluate the effect of use and dose of porcine FSH (p-FSH) before OPU/IVEP on ovarian response and embryo production in pregnant heifers. Pregnant Holstein heifers (n = 48) were randomly assigned to receive 0, 160, or 300 mg NIH-FSH-P1 in a crossover design. Ovum pick-up was performed at 49, 63, and 77 d of gestation with a 14 d "washout" between OPU sessions. Follicle ablation was performed on D 0 (p.m.) and p-FSH treatments, consisting of 4 decreasing dose injections administered 12 h apart, were initiated 36 h after follicle ablation (d 2 a.m.). Heifers underwent OPU on D 5 (a.m.), 40 h after the last p-FSH treatment, and cumulus oocyte complexes (COC) were subjected to IVEP procedures. Differences between treatment groups were evaluated using generalized linear mixed models. There were quadratic effects of treatment on both number and percentage of small (<6 mm), medium (6-10 mm), and large (>10 mm) follicles. Number and percentage of medium follicles increased with increasing p-FSH dosages, although the magnitude of the change was greater between 0 and 160 mg, than between 160 and 300 mg of p-FSH. Total number of follicles, number of COC recovered and number of viable COC increased linearly with increasing p-FSH dose. Conversely, there was no evidence for an effect of p-FSH dose on COC recovery percentage nor the percentage of viable COC. Cleavage percentage, number of cleaved oocytes, blastocyst percentage, and number of blastocysts increased linearly with increasing p-FSH dose. In conclusion, use of p-FSH before OPU resulted in greater superstimulatory response and oocyte competence which in turn increased IVEP. Furthermore, these effects were dose dependent such that use of a greater dose of p-FSH up to 300 mg progressively increased embryo yield.
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Affiliation(s)
- Cameron B Hayden
- Department of Animal Sciences, The Ohio State University, Columbus, OH 43210
| | - Rodrigo V Sala
- STgenetics, The Ohio Heifer Center, South Charleston, OH 45368
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Santos GMGD, Junior LB, Silva-Santos KC, Ayres Dias JH, Dias IDS, Seneda MM, Morotti F. Conception rate and pregnancy loss in fixed-time cattle embryo transfer programs are related to the luteal blood perfusion but not to the corpus luteum size. Theriogenology 2023; 210:251-255. [PMID: 37549464 DOI: 10.1016/j.theriogenology.2023.07.039] [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: 05/31/2023] [Revised: 07/10/2023] [Accepted: 07/31/2023] [Indexed: 08/09/2023]
Abstract
This study aimed to evaluate the effect of luteal blood perfusion and corpus luteum (CL) area on the conception rate and occurrence of pregnancy loss of recipients in a large-scale fixed-time embryo transfer (FTET) program. Multiparous Brangus cows (n = 1700) at 45 days postpartum and body condition scores (BCS) between 2.5 and 4.0 (3.0 ± 0.3) were used in this study. On a random day of the estrous cycle (day -10), the females received progesterone and estradiol based on the FTET protocol. On day 7, 1465 recipients had at least one CL and were evaluated using B-mode ultrasound for the CL area (cm2) and color Doppler for the luteal blood perfusion score (I/low-vascularization area <40% of the CL; II/medium-vascularization >45% to < 50%; and III/high-vascularization >50%). Immediately after CL evaluation, each recipient received a single fresh embryo (blastocyst stage) ipsilateral to the CL, in vitro produced from a commercial laboratory. Pregnancy diagnosis was performed at 30 days and repeated 60 days later to evaluate pregnancy loss (30-90 days). Ultrasound evaluation and embryo transfer were performed by a single technician. For data analysis, in addition to luteal blood perfusion groups, recipients were retrospectively ranked according to CL area into small (<3 cm2; 2.63 ± 0.01), medium (>3 to < 4 cm2; 3.44 ± 0.01), and large (>4 cm2; 4.77 ± 0.03). Data were analyzed using a logistic regression model (P < 0.05). The overall conception rate was 44.2% (648/1465), influenced by the luteal blood perfusion score [P = 0.03; high 48.4%a (134/277), medium 44.6%a (427/958), and low 37.8%b (87/230)] but not by CL area ranking [P = 0.37; large 41.8% (225/538), medium 45.2% (276/610), and small 46.4% (147/317)]. There was no interaction between the luteal blood perfusion score and CL area ranking (P = 0.81), and the BCS did not affect the results of this study (P = 0.51). In terms of pregnancy loss up to 90 days, there was no effect on the CL area ranking (P = 0.77), but the flow score showed an effect [P = 0.03; high 3.6%b (5/139), medium 9.3%a (44/471), and low 10.3%a (10/97)]. The conception rate and occurrence of pregnancy loss in the FTET program in beef cattle are related to luteal blood perfusion but not CL size.
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Affiliation(s)
| | | | | | | | | | | | - Fábio Morotti
- UEL - Universidade Estadual de Londrina, Londrina, PR, Brazil; UNOPAR - Universidade Pitágoras Unopar Anhanguera, Arapongas, PR, Brazil.
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Baouche M, Ochota M, Mermillod P, Locatelli Y, Nizanski W. Feline Wharton's jelly-derived mesenchymal stem cells as a feeder layer for oocytes maturation and embryos culture in vitro. Front Vet Sci 2023; 10:1252484. [PMID: 37869498 PMCID: PMC10590214 DOI: 10.3389/fvets.2023.1252484] [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: 07/03/2023] [Accepted: 09/11/2023] [Indexed: 10/24/2023] Open
Abstract
Introduction Due to their capacity to release growth factors and cytokines, co-culture using mesenchymal stem cells has been considered a good alternative to promoting the maturation of the oocytes and the embryo's development quality in vitro in different mammalian species. In this regard, we investigated the effect of feline Wharton's jelly MSCs as feeders layer in oocyte maturation-consequently, the development of resulting embryos in co-culture. Methods Oocytes with dark cytoplasm and a few layers of cumulus cells were collected and subjected to in vitro maturation and embryo culture using commercial media with and without MSCs addition. The oocytes' nuclear maturation and the degree of cumulus expansion in different groups were assessed after 24 h; the development of the embryo was evaluated every 12 h until day eight. Results Although MSCs increased the proportion of cumulus cells oocytes exhibiting cumulus expansion, there were no significant differences in the percentage of matured oocytes (metaphase II) among the groups (p > 0.05). However, the embryo development differs significantly, with a higher cleavage, morula, and blastocyst percentage in oocytes matured with MSC co-culture conditions than in commercial media alone (p < 0.05). Also, we observed higher morula and blastocyst rates in the embryos co-cultured with MSCs during the in vitro culture (p > 0.05). Conclusion Based on our results, the co-culture with MSCs during the oocyte maturation resulted in better embryo development, as well as the MSCs addition during embryo culture returned an increased number of morula and blastocysts. Further research is needed to fully understand and optimize the use of MSCs in oocyte maturation and embryo development.
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Affiliation(s)
- Meriem Baouche
- Department of Reproduction and Clinic of Farm Animals, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Małgorzata Ochota
- Department of Reproduction and Clinic of Farm Animals, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Pascal Mermillod
- Physiology of Reproduction and Behaviors (PRC), INRAE, CNRS, University of Tours, Tours, France
| | - Yann Locatelli
- Physiology of Reproduction and Behaviors (PRC), INRAE, CNRS, University of Tours, Tours, France
- Museum National d’Histoire Naturelle, Réserve Zoologique de la Haute Touche, Obterre, France
| | - Wojciech Nizanski
- Department of Reproduction and Clinic of Farm Animals, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
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Piau TB, de Queiroz Rodrigues A, Paulini F. Insulin-like growth factor (IGF) performance in ovarian function and applications in reproductive biotechnologies. Growth Horm IGF Res 2023; 72-73:101561. [PMID: 38070331 DOI: 10.1016/j.ghir.2023.101561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/25/2023] [Accepted: 11/30/2023] [Indexed: 12/18/2023]
Abstract
The role of the insulin-like growth factor (IGF) system has attracted close attention. The activity of IGF binding proteins (IGFBPs) within the ovary has not been fully elucidated to date. These proteins bind to IGF with an equal, or greater, affinity than to the IGF1 receptor, thus being in the main position to regulate IGF signalling, in addition to extending the half-life of IGFs within the bloodstream and promoting IGF storage in specific tissue niches. IGF1 has an important part in cell proliferation, differentiation and apoptosis. Considering the importance of IGFs in oocyte maturation, this review sought to elucidate aspects including: IGF production mechanisms; constituent members of their family and their respective functions; the role that these factors play during folliculogenesis, together with their functions during oocyte maturation and apoptosis, and their performance during luteal development. This review also explores the role of IGFs in biotechnological applications, focusing specifically on animal genetic gain.
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Affiliation(s)
- Tathyana Benetis Piau
- University of Brasília, Institute of Biological Sciences, Department of Physiological Sciences, Brasília, DF 70910-900, Brazil
| | - Aline de Queiroz Rodrigues
- University of Brasília, Institute of Biological Sciences, Department of Physiological Sciences, Brasília, DF 70910-900, Brazil
| | - Fernanda Paulini
- University of Brasília, Institute of Biological Sciences, Department of Physiological Sciences, Brasília, DF 70910-900, Brazil.
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Zhang M, Zhang J, Wang D, Liu Z, Xing K, Wang Y, Jiao M, Wang Y, Shi B, Zhang H, Zhang Y. C-X-C motif chemokine ligand 12 improves the developmental potential of bovine oocytes by activating SH2 domain-containing tyrosine phosphatase 2 during maturation†. Biol Reprod 2023; 109:282-298. [PMID: 37498179 DOI: 10.1093/biolre/ioad079] [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: 10/29/2022] [Revised: 03/21/2023] [Accepted: 07/25/2023] [Indexed: 07/28/2023] Open
Abstract
In vitro maturation of mammalian oocytes is an important means in assisted reproductive technology. Most bovine immature oocytes complete nuclear maturation, but less than half develop to the blastocyst stage after fertilization. Thus, inefficient in vitro production is mainly caused by a suboptimal in vitro culture process, in which oocyte quality appears to be the limiting factor. In our study, a potential maternal regulator, C-X-C motif chemokine ligand 12, was identified by analyzing transcriptome data. C-X-C motif chemokine ligand 12 supplementation promoted the developmental potential of oocytes by improving protein synthesis and reorganizing cortical granules and mitochondria during in vitro maturation, which eventually increased blastocyst formation efficiency and cell number after parthenogenesis, fertilization, and cloning. All these promoting effects by C-X-C motif chemokine ligand 12 were achieved by activating SH2 domain-containing tyrosine phosphatase 2, thereby promoting the mitogen-activated protein kinase signaling pathway. These findings provide an in vitro maturation system that closely resembles the maternal environment to provide high-quality oocytes for in vitro production.
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Affiliation(s)
- Min Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Jingcheng Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Debao Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Zhengqing Liu
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Kangning Xing
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yongsheng Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Mei Jiao
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yong Wang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Binqiang Shi
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Hexu Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Yong Zhang
- Key Laboratory of Animal Biotechnology of the Ministry of Agriculture, College of Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
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40
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Velazquez MA, Idriss A, Chavatte-Palmer P, Fleming TP. The mammalian preimplantation embryo: Its role in the environmental programming of postnatal health and performance. Anim Reprod Sci 2023; 256:107321. [PMID: 37647800 DOI: 10.1016/j.anireprosci.2023.107321] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/02/2023] [Accepted: 08/17/2023] [Indexed: 09/01/2023]
Abstract
During formation of the preimplantation embryo several cellular and molecular milestones take place, making the few cells forming the early embryo vulnerable to environmental stressors than can impair epigenetic reprogramming and controls of gene expression. Although these molecular alterations can result in embryonic death, a significant developmental plasticity is present in the preimplantation embryo that promotes full-term pregnancy. Prenatal epigenetic modifications are inherited during mitosis and can perpetuate specific phenotypes during early postnatal development and adulthood. As such, the preimplantation phase is a developmental window where developmental programming can take place in response to the embryonic microenvironment present in vivo or in vitro. In this review, the relevance of the preimplantation embryo as a developmental stage where offspring health and performance can be programmed is discussed, with emphasis on malnutrition and assisted reproductive technologies; two major environmental insults with important implications for livestock production and human reproductive medicine.
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Affiliation(s)
- Miguel A Velazquez
- School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, UK.
| | - Abdullah Idriss
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK; Pathology and laboratory medicine, King Faisal Specialist Hospital and Research Centre, P.O. Box 40047, MBC J-10, Jeddah 21499, Kingdom of Saudi Arabia
| | - Pascale Chavatte-Palmer
- Université Paris-Saclay, UVSQ, INRAE, BREED, 78350 Jouy-en-Josas, France; Ecole Nationale Vétérinaire d'Alfort, BREED, 94700 Maisons-Alfort, France
| | - Tom P Fleming
- Biological Sciences, University of Southampton, Southampton, UK
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Besenfelder U, Havlicek V. The interaction between the environment and embryo development in assisted reproduction. Anim Reprod 2023; 20:e20230034. [PMID: 37700910 PMCID: PMC10494886 DOI: 10.1590/1984-3143-ar2023-0034] [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: 03/08/2023] [Accepted: 06/28/2023] [Indexed: 09/14/2023] Open
Abstract
It can be assumed that the natural processes of selection and developmental condition in the animal provide the best prerequisites for embryogenesis resulting in pregnancy and subsequent birth of a healthy neonate. In contrast, circumventing the natural selection mechanisms and all developmental conditions in a healthy animal harbors the risk of counteracting, preventing or reducing the formation of embryos or substantially restricting their genesis. Considering these facts, it seems to be obvious that assisted reproductive techniques focusing on early embryonic stages serve an expanded and unselected germ cell pool of oocytes and sperm cells, and include the culture of embryos outside their natural habitat during and after fertilization for manipulation and diagnostic purposes, and for storage. A significant influence on the early embryonic development is seen in the extracorporeal culture of bovine embryos (in vitro) or stress on the animal organism (in vivo). The in vitro production per se and metabolic as well as endocrine changes in the natural environment of embryos represent adequate models and serve for a better understanding. The purpose of this review is to give a brief presentation of recent techniques aimed at focusing more on the complex processes in the Fallopian tube to contrast in vivo and in vitro prerequisites and abnormalities in early embryonic development and serve to identify potential new ways to make the use of ARTs more feasible.
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Affiliation(s)
- Urban Besenfelder
- Department of Biomedical Sciences, Institute of Animal Breeding and Genetics, Vienna, Austria
| | - Vitezslav Havlicek
- Department of Biomedical Sciences, Institute of Animal Breeding and Genetics, Vienna, Austria
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42
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Selionova MI, Aibazov MM, Zharkova EK. Cryopreservation and Transfer of Sheep Embryos Recovered at Different Stages of Development and Cryopreserved Using Different Techniques. Animals (Basel) 2023; 13:2361. [PMID: 37508138 PMCID: PMC10375972 DOI: 10.3390/ani13142361] [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: 05/26/2023] [Revised: 07/11/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023] Open
Abstract
This article presents data from experiments to determine the cryoresistance of Charollais sheep embryos, depending on the stage of embryo development and the method of freezing, as well as the results of embryo transfer. The study design consisted of a study on the cryopreservation of ewe embryos at different developmental stages (early, 2-8 blastomeric and late, at the morula/blastocyst stage), two cryopreservation protocols (slow freezing and ultra-fast vitrification), and embryo transfer of cryo- and fresh embryos. Embryos from Charollais sheep donors (n = 12) were recovered after induction of superovulation. The embryos were recovered surgically (laparotomy) on days 2 and 6 after insemination. Before there was transfer to recipients, part of embryos was cryopreserved using standard slow freezing and ultra-fast vitrification methods. The average ovarian response was 7.54 ovulations per donor, and 5.83 embryos per donor were collected. No effect of the cryopreservation method and embryo development stage on the preservation of the morphological structure of embryos was found. There were no significant differences in the survival rate of cryoembryos at different development stages, frozen using different techniques, and after transfer to recipients. Differences in cryoresistance between embryonic developmental stages in favor of the morula/blastocyst stage were found (survival after thawing 86.4% vs. 75.0% in early embryos). At different stages of development, the survival rate of fresh embryos (45.8%) compared to cryopreserved ones (30.2%) was significantly higher (p < 0.05), while among fresh ones, the best survival rate (50.0%) was observed after the transfer of morules and blastocysts.
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Affiliation(s)
- Marina I Selionova
- Subdepartment of Animal Breeding, Genetics and Biotechnology, Russian State Agrarian University-Moscow Timiryazev Agricultural Academy, Timiryazevskaya Street, 41, 127343 Moscow, Russia
| | - Magomet M Aibazov
- North Caucasian Agrarian Center, Zootechnicheski 15, 355017 Stavropol, Russia
| | - Ekaterina K Zharkova
- Subdepartment of Animal Breeding, Genetics and Biotechnology, Russian State Agrarian University-Moscow Timiryazev Agricultural Academy, Timiryazevskaya Street, 41, 127343 Moscow, Russia
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43
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Huamani MC, Palomino CYG, Arcce IML, Chaves MS, Melo LM, de Figueirêdo Freitas VJ. Does the addition of follicular fluid in the in vitro maturation medium increase the oocyte maturation and embryo production in alpacas? Trop Anim Health Prod 2023; 55:232. [PMID: 37284911 DOI: 10.1007/s11250-023-03646-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/16/2023] [Indexed: 06/08/2023]
Abstract
In alpacas (Vicugna pacos), the high cost of in vitro embryo production is also a consequence of the use of several substances in the culture medium. In addition, embryo production rates in this species are still considered low. Thus, in attempt to reduce the cost and to improve the in vitro embryo production rates, this study evaluates the effect of adding follicular fluid (FF) in the in vitro maturation medium on oocyte maturation and subsequent embryo production. After ovary collection at the local slaughterhouse, the oocytes were recovered, selected, and allocated in experimental groups: standard maturation medium (G1) and simplified medium added by 10% FF (G2). The FF was acquired from follicles between 7- and 12-mm diameter. The cumulus cell expansion and the embryo production rates were analyzed by chi-square with p < 0.05. No differences (p > 0.05) were observed in maturation rate between G1 (66.36%) and G2 (63.12%) groups. Likewise, no significant difference (p > 0.05) was verified between G1 and G2 for morula (40.85 vs 38.45%), blastocyst (7.01 vs 6.93%), and total number of embryos (47.87 vs 45.38%). In conclusion, it was possible to simplify the medium used for in vitro maturation of alpaca oocytes resulting in embryo production rates similar to the standard medium.
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Affiliation(s)
| | | | | | - Maiana Silva Chaves
- Laboratório de Fisiologia E Controle da Reprodução, Universidade Estadual Do Ceará (UECE), Fortaleza, Brazil
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Wang Y, Xu Y, Li S, Yan X, Yang X, Chen M, Wang Y, Jia R, Zhou D, Shi D, Lu F. Beneficial Effects of Catalpol Supplementation during In Vitro Maturation of Porcine Cumulus-Oocyte Complexes. Antioxidants (Basel) 2023; 12:1222. [PMID: 37371952 DOI: 10.3390/antiox12061222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/01/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
Oxidative stress degrades oocytes during in vitro maturation (IVM). Catalpol, a well-known iridoid glycoside, exhibits antioxidant, anti-inflammatory, and antihyperglycemic effects. In this study, catalpol supplementation was tested on porcine oocyte IVM and its mechanisms. Corticalgranule (GC) distribution, mitochondrial function, antioxidant capacity, DNA damage degree, and real-time quantitative polymerase chain reaction were used to confirm the effects of 10 μmol/L catalpol in the maturation medium during IVM. Catalpol treatment significantly increased the first-pole rate and cytoplasmic maturation in mature oocytes. It also increased oocyte glutathione (GSH), mitochondrial membrane potential and blastocyst cell number. However, DNA damage as well as reactive oxygen species (ROS) and malondialdehyde (MDA) levels. Mitochondrial membrane potential and blastocyst cell number were also increased. Thus, the supplementation of 10 μmol/L catalpol in the IVM medium improves porcine oocyte maturation and embryonic development.
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Affiliation(s)
- Yanxin Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Ye Xu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Sijia Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Xi Yan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Xiaofen Yang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Mengjia Chen
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Yun Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Ruru Jia
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Dongping Zhou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Deshun Shi
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
| | - Fenghua Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, 75 Xiuling Road, Nanning 530005, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Guangxi University, 75 Xiuling Road, Nanning 530005, China
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Oliver MA, Peterson KD, Bhandari S, Payton RR, Edwards JL, Mathew DJ. Progesterone-stimulated endometrial cell conditioned media increases in vitro produced bovine embryo blastocyst formation. Anim Reprod Sci 2023; 254:107264. [PMID: 37285656 DOI: 10.1016/j.anireprosci.2023.107264] [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: 01/23/2023] [Revised: 04/28/2023] [Accepted: 05/21/2023] [Indexed: 06/09/2023]
Abstract
The early bovine embryo is supported by histotroph molecules secreted by endometrial epithelial (EPI) and stroma fibroblast (SF) cells in response to luteal progesterone (P4). We hypothesized that specific histotroph molecule transcript abundance depends on cell type and P4 concentration and that endometrial cell conditioned media (CM) could improve in vitro produced (IVP) embryo development in culture. Primary bovine EPI and SF cells from seven uteri were incubated for 12 h with RPMI medium containing 0 (Control), 1, 15, or 50 ng of P4. RPMI was also incubated without cells (N-CM) and CM from EPI or SF cultures (EPI- or SF-CM) or a combination of the two (1:1; EPI/SF-CM) was used to culture IVP embryos from days 4-8 of development (n = 117). There was an effect of cell type (SLC1A1, SLC5A6, SLC7A1, FGF-2, FGF-7, CTGF, PRSS23 and NID2) and/or P4 concentration (FGF-7 and NID2) on endometrial cell histotroph molecule mRNA (P < 0.05). Compared to N-CM, blastocyst development on day 7 was greater in the EPI or SF-CM (P ≤ 0.05) and tended to be greater in the EPI/SF-CM (P = 0.07). On day 8, blastocyst development was greater only in the EPI-CM (P < 0.05). Further, culturing embryos with endometrial cell CM reduced day 8 blastocyst transcript abundance of cell adhesion molecule LGALS1 (P < 0.01). In conclusion, endometrial cell CM or histotroph molecules may be used to improve IVP embryo development in cattle.
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Affiliation(s)
- Mary A Oliver
- Department of Animal Sciences, University of Tennessee, Knoxville, TN, USA; School of Animal Sciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Katie D Peterson
- Department of Animal Sciences, University of Tennessee, Knoxville, TN, USA
| | - Sadikshya Bhandari
- Department of Animal Sciences, University of Tennessee, Knoxville, TN, USA
| | - Rebecca R Payton
- Department of Animal Sciences, University of Tennessee, Knoxville, TN, USA
| | - J Lannett Edwards
- Department of Animal Sciences, University of Tennessee, Knoxville, TN, USA
| | - Daniel J Mathew
- Department of Animal Sciences, University of Tennessee, Knoxville, TN, USA.
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Jiang Y, He Y, Pan X, Wang P, Yuan X, Ma B. Advances in Oocyte Maturation In Vivo and In Vitro in Mammals. Int J Mol Sci 2023; 24:9059. [PMID: 37240406 PMCID: PMC10219173 DOI: 10.3390/ijms24109059] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 05/28/2023] Open
Abstract
The quality and maturation of an oocyte not only play decisive roles in fertilization and embryo success, but also have long-term impacts on the later growth and development of the fetus. Female fertility declines with age, reflecting a decline in oocyte quantity. However, the meiosis of oocytes involves a complex and orderly regulatory process whose mechanisms have not yet been fully elucidated. This review therefore mainly focuses on the regulation mechanism of oocyte maturation, including folliculogenesis, oogenesis, and the interactions between granulosa cells and oocytes, plus in vitro technology and nuclear/cytoplasm maturation in oocytes. Additionally, we have reviewed advances made in the single-cell mRNA sequencing technology related to oocyte maturation in order to improve our understanding of the mechanism of oocyte maturation and to provide a theoretical basis for subsequent research into oocyte maturation.
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Affiliation(s)
- Yao Jiang
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
- Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518120, China
| | - Yingting He
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Xiangchun Pan
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Penghao Wang
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
| | - Xiaolong Yuan
- Guangdong Laboratory of Lingnan Modern Agriculture, National Engineering Research Center for Breeding Swine Industry, Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, College of Animal Science, South China Agricultural University, Guangzhou 510642, China
| | - Bin Ma
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, WA 6149, Australia
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Fernández-Montoro A, Angel-Velez D, Benedetti C, Azari-Dolatabad N, Pascottini OB, Van Soom A, Pavani KC. Alternative Culture Systems for Bovine Oocyte In Vitro Maturation: Liquid Marbles and Differentially Shaped 96-Well Plates. Animals (Basel) 2023; 13:ani13101635. [PMID: 37238065 DOI: 10.3390/ani13101635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
In vivo-matured oocytes exhibit higher developmental competence than those matured in vitro but mimicking the in vivo environment by in vitro conditions has been challenging. Until now, conventional two-dimensional (2D) systems have been used for in vitro maturation of bovine cumulus-oocytes-complexes (COCs). However, using such systems present certain limitations. Therefore, alternative low-cost methodologies may help to optimize oocyte in vitro maturation. Here, we used two different systems to culture COCs and evaluate their potential influence on embryo development and quality. In the first system, we used treated fumed silica particles to create a 3D microenvironment (liquid marbles; LM) to mature COCs. In the second system, we cultured COCs in 96-well plates with different dimensions (flat, ultra-low attachment round-bottom, and v-shaped 96-well plates). In both systems, the nuclear maturation rate remained similar to the control in 2D, showing that most oocytes reached metaphase II. However, the subsequent blastocyst rate remained lower in the liquid marble system compared with the 96-well plates and control 2D systems. Interestingly, a lower total cell number was found in the resulting embryos from both systems (LM and 96-well plates) compared with the control. In conclusion, oocytes matured in liquid marbles or 96-well plates showed no remarkable change in terms of meiotic resumption. None of the surface geometries influenced embryo development while oocyte maturation in liquid marbles led to reduced embryo development. These findings show that different geometry during maturation did not have a large impact on oocyte and embryo development. Lower embryo production after in vitro maturation in liquid marbles was probably detected because in vitro maturation was performed in serum-free medium, which makes oocytes more sensitive to possible toxic effects from the environment.
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Affiliation(s)
- Andrea Fernández-Montoro
- Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Daniel Angel-Velez
- Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, 9820 Merelbeke, Belgium
- Research Group in Animal Sciences-INCA-CES, Universidad CES, Medellin 050021, Colombia
| | - Camilla Benedetti
- Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Nima Azari-Dolatabad
- Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Osvaldo Bogado Pascottini
- Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Ann Van Soom
- Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, 9820 Merelbeke, Belgium
| | - Krishna Chaitanya Pavani
- Department of Internal Medicine, Reproduction and Population Medicine, Ghent University, 9820 Merelbeke, Belgium
- Department for Reproductive Medicine, Ghent University Hospital, 9000 Gent, Belgium
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48
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El-Sheikh M, Mesalam AA, Kang SM, Joo MD, Soliman SS, Khalil AAK, Ahn MJ, Kong IK. Modulation of Apoptosis and Autophagy by Melatonin in Juglone-Exposed Bovine Oocytes. Animals (Basel) 2023; 13:ani13091475. [PMID: 37174512 PMCID: PMC10177052 DOI: 10.3390/ani13091475] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Melatonin, an antioxidant hormone secreted by the pineal gland, has been recognized as a regulator for numerous biological events. The deleterious effects of juglone, a polyphenolic extract of walnut trees, on embryo development has been previously reported. In the current study, we aimed to display the impact of melatonin administrated during in vitro oocyte maturation (IVM) on juglone-treated oocytes. Thus, in vitro matured oocytes were collected after 24 h post incubation with juglone in the presence or absence of melatonin. Reactive oxygen species (ROS), glutathione (GSH) content, mitochondrial distribution, and the relative abundance of mRNA transcription levels were assessed in oocytes, in addition, oocytes were in vitro fertilized to check the competency levels of oocytes to generate embryos. We found that administration of melatonin during the maturation of oocytes under juglone stress significantly improved the cleavage rate, 8-16 cell-stage embryos and day-8 blastocysts when compared to the sole juglone treatment. In addition, the fluorescence intensity of ROS increased, whereas the GSH decreased in juglone-treated oocytes compared to melatonin-juglone co-treated and untreated ones. Additionally, a significant increase in the mitochondrial aberrant pattern, the pattern that was normalized following melatonin supplementation, was observed following juglone administration. The mRNA analysis using RT-qPCR revealed a significant upregulation of autophagy and oxidative-stress-specific markers in the juglone-treated group compared to the co-treatment and control. In conclusion, the study reveals, for the first time, a protective effect of melatonin against the oxidative stress initiated following juglone treatment during the in vitro maturation of oocytes.
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Affiliation(s)
- Marwa El-Sheikh
- Department of Microbial Biotechnology, Biotechnology Research Institute, National Research Centre (NRC), Dokki, Cairo 12622, Egypt
| | - Ahmed Atef Mesalam
- Department of Therapeutic Chemistry, Pharmaceutical and Drug Industries Research Institute, National Research Centre (NRC), Dokki, Cairo 12622, Egypt
| | - Seon-Min Kang
- Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Myeong-Don Joo
- Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Seham Samir Soliman
- Department of Animal Reproduction and Artificial Insemination, Veterinary Research Institute, National Research Centre (NRC), Dokki, Cairo 12622, Egypt
| | - Atif Ali Khan Khalil
- Department of Pharmacognosy, Faculty of Pharmaceutical and Allied Health Sciences, Lahore College for Women University, Lahore 54000, Pakistan
| | - Mi-Jeong Ahn
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Il-Keun Kong
- Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Republic of Korea
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 52828, Republic of Korea
- The King Kong Corp. Ltd., Gyeongsang National University, Jinju 52828, Republic of Korea
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49
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Bahrami M, Morris MB, Day ML. Glutamine, proline, and isoleucine support maturation and fertilisation of bovine oocytes. Theriogenology 2023; 201:59-67. [PMID: 36842262 DOI: 10.1016/j.theriogenology.2023.02.019] [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: 12/20/2022] [Revised: 02/15/2023] [Accepted: 02/16/2023] [Indexed: 02/20/2023]
Abstract
Successful in-vitro production of bovine embryos relies on meiotic maturation of oocytes in vitro (IVM) before they can be fertilised. High levels of IVM are currently achieved using a complex medium that contains all 20 common amino acids, namely TCM199, but can also be achieved using a simple inorganic salt solution containing non-essential amino acids, proline, and glutamine. Further simplification of the amino acid content of medium used for IVM could lead to a more defined medium that provides reproducible IVM. The aim of this study was, therefore, to determine the minimal amino acid requirements for bovine oocyte nuclear maturation, as measured by progression to metaphase II (MII) of meiosis. Supplementation of a simple medium composed of inorganic salts (M1 medium) with multiple amino-acid combinations showed that M1 containing glutamine, proline, and isoleucine resulted in nuclear maturation comparable to that of TCM199 (57.4 ± 3.4% vs 67% ± 1.7%, respectively) but was reduced when cystine (Cys2) to that seen with M1 alone (38.0 ± 2.2%). Viability of oocytes matured in this simplified medium was equal to those matured in TCM199 since the same proportion of zygotes with 2 pronuclei were observed following fertilisation in medium containing no amino acids (33.9 ± 6.5% vs 33.3 ± 3.6%, respectively). Addition of glutamine, proline and isoleucine to fertilisation medium also increased the proportion of zygotes but did not increase blastocyst development rates. Thus, a defined medium containing only glutamine, proline and isoleucine is sufficient for oocyte maturation and successful fertilisation.
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Affiliation(s)
- Mohammad Bahrami
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, New South Wales, Australia; Priority Research Centre for Reproductive Science, School of Environmental and Life Sciences, Faculty of Science, University of Newcastle, Callaghan, New South Wales, Australia.
| | - Michael B Morris
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, New South Wales, Australia
| | - Margot L Day
- School of Medical Sciences, Faculty of Medicine and Health, University of Sydney, New South Wales, Australia.
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50
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Tanga BM, Fang X, Bang S, Seo C, Kang H, Cha D, Qamar AY, Shim J, Choi K, Saadeldin IM, Lee S, Cho J. The combination of rolipram and cilostamide improved the developmental competence of cloned porcine embryos. Sci Rep 2023; 13:5733. [PMID: 37029228 PMCID: PMC10081996 DOI: 10.1038/s41598-023-32677-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 03/31/2023] [Indexed: 04/09/2023] Open
Abstract
In vitro maturation of porcine oocytes is characterized by asynchronous cytoplasmic and nuclear maturation, leading to less competent oocytes supporting embryo development. The purpose of this study was to evaluate the combined effect of rolipram and cilostamide as cyclic Adenine monophosphate (cAMP) modulators to find the maximum cAMP levels that temporarily arrest meiosis. We determined the optimal time to maintain functional gap junction communication during pre-in vitro maturation to be four hours. Oocyte competence was evaluated by the level of glutathione, reactive oxygen species, meiotic progression, and gene expression. We evaluated embryonic developmental competence after parthenogenetic activation and somatic cell nuclear transfer. The combined treatment group showed significantly higher glutathione and lower reactive oxygen species levels and a higher maturation rate than the control and single treatment groups. Cleavage and blastocyst formation rates in parthenogenetic activation and somatic cell nuclear transfer embryos were higher in two-phase in vitro maturation than in the other groups. The relative levels of BMP15and GDF9 expression were increased in two-phase in vitro maturation. Somatic cell nuclear transfer blastocysts from two-phase in vitro maturation oocytes showed a lower level of expression of apoptotic genes than the control, indicating better pre-implantation developmental competence. The combination of rolipram and cilostamide resulted in optimal synchrony of cytoplasmic and nuclear maturation in porcine in vitro matured oocytes and there by enhanced the developmental competence of pre-implantation embryos.
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Affiliation(s)
- Bereket Molla Tanga
- Lab of Theriogenology, College of Veterinary Medicine, Chungnam National University, 99, Daehak-ro, Daejeon, 34134, Republic of Korea
- School of Veterinary Medicine, Hawassa University, Hawassa, Ethiopia
| | - Xun Fang
- Lab of Theriogenology, College of Veterinary Medicine, Chungnam National University, 99, Daehak-ro, Daejeon, 34134, Republic of Korea
| | - Seonggyu Bang
- Lab of Theriogenology, College of Veterinary Medicine, Chungnam National University, 99, Daehak-ro, Daejeon, 34134, Republic of Korea
| | - Chaerim Seo
- Lab of Theriogenology, College of Veterinary Medicine, Chungnam National University, 99, Daehak-ro, Daejeon, 34134, Republic of Korea
| | - Heejae Kang
- Lab of Theriogenology, College of Veterinary Medicine, Chungnam National University, 99, Daehak-ro, Daejeon, 34134, Republic of Korea
| | - Dabin Cha
- Lab of Theriogenology, College of Veterinary Medicine, Chungnam National University, 99, Daehak-ro, Daejeon, 34134, Republic of Korea
| | - Ahmad Yar Qamar
- College of Veterinary & Animal Science, University of Veterinary & Animal Sciences, Lahore, Pakistan
| | - Joohyun Shim
- Department of Transgenic Animal Research, Optipharm, Inc., Chungcheongbuk-do, Cheongju-si, Republic of Korea
| | - Kimyung Choi
- Department of Transgenic Animal Research, Optipharm, Inc., Chungcheongbuk-do, Cheongju-si, Republic of Korea
| | - Islam M Saadeldin
- Lab of Theriogenology, College of Veterinary Medicine, Chungnam National University, 99, Daehak-ro, Daejeon, 34134, Republic of Korea
- Research Institute of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Sanghoon Lee
- Lab of Theriogenology, College of Veterinary Medicine, Chungnam National University, 99, Daehak-ro, Daejeon, 34134, Republic of Korea
| | - Jongki Cho
- Lab of Theriogenology, College of Veterinary Medicine, Chungnam National University, 99, Daehak-ro, Daejeon, 34134, Republic of Korea.
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