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Cajas YN, Cañón-Beltrán K, Mazzarella R, Nuñez-Puente C, González EM, Rodriguez-Martinez H, Rizos D, Martinez-Serrano CA. Nobiletin as a novel agent to enhance porcine in vitro embryo development and quality. Theriogenology 2024; 223:36-46. [PMID: 38669840 DOI: 10.1016/j.theriogenology.2024.04.011] [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: 02/09/2024] [Revised: 03/25/2024] [Accepted: 04/21/2024] [Indexed: 04/28/2024]
Abstract
In vitro embryo production (IVP) is of great importance to the porcine industry, as well as for basic research and biomedical applications. Despite the large efforts made in laboratories worldwide to address suboptimal culture conditions, porcine IVP remains inefficient. Nobiletin (Nob, 5,6,7,8,3',4' hexamethoxyflavone) supplementation to in vitro culture (IVC) medium, enhances in vitro embryo development in various species. However, its impact on the quality and developmental capacity of in vitro-produced pig embryos is yet to be established. This study evaluated the effects of different concentrations (2.5 and 5 μM) of Nob during the early culture of in vitro-produced pig embryos on embryo developmental competence, mitochondrial activity, lipid content, intracellular Reactive Oxygen Species (ROS) and Glutathione (GSH) content, Total Cell Number (TCN) per blastocyst, and expression of genes related to embryo development, quality and oxidative stress. Embryos cultured in medium without Nob supplementation and in medium supplemented with 0.01 % dimethyl sulfoxide (DMSO-vehicle for Nob) constituted the Control and DMSO groups, respectively. Embryo development rates were evaluated on Days 2, 6 and 7 of IVC. Additionally, a representative group of embryos was selected to assess mitochondrial activity, lipid, ROS and GSH content (on Days 2 and 6 of IVC), TCN assessment and gene expression analyses (on Day 6 of IVC). No significant differences were observed in any of the parameters evaluated on Day 2 of IVC. In contrast, embryos cultured under the presence of Nob 2.5 showed higher developmental rates on Days 6 and 7 of IVC. In addition, Day 6 embryos showed increased mitochondrial activity, with decreased levels of ROS and GSH in the Nob 2.5 group compared to the other groups. Both Nob 2.5 and Nob 5 embryos showed higher TCN compared to the Control and DMSO groups. Furthermore, Nob 2.5 and Nob 5 upregulated the expression of Superoxide dismutase type 1 (SOD1) and Glucose-6-phosphate dehydrogenase (G6PDH) genes, which could help to counteract oxidative stress during IVC. In conclusion, the addition of Nob during the first 48 h of IVC increased porcine embryo development rates and enhanced their quality, including the upregulation of relevant genes that potentially improved the overall efficiency of the IVP system.
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Affiliation(s)
- Yulia N Cajas
- Department of Agrarian Production, Technical University of Madrid (UPM), 28040, Madrid, Spain; Department of Biological Science, Technical University of Loja (UTPL), 1101608, Loja, Ecuador.
| | - Karina Cañón-Beltrán
- Department of Biochemistry and Molecular Biology, Veterinary Faculty, Complutense University of Madrid (UCM), 28040, Madrid, Spain.
| | - Rosane Mazzarella
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA-CSIC), Avda. Puerta de Hierro, 28040, Madrid, Spain.
| | - Carolina Nuñez-Puente
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA-CSIC), Avda. Puerta de Hierro, 28040, Madrid, Spain.
| | - Encina M González
- Department of Anatomy and Embryology, Veterinary Faculty, Complutense University of Madrid (UCM), 28040, Madrid, Spain.
| | - Heriberto Rodriguez-Martinez
- Department of Biomedical & Clinical Sciences (BKV), BKH/Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Linköping University, SE-58185, Linköping, Sweden.
| | - Dimitrios Rizos
- Department of Animal Reproduction, National Institute for Agriculture and Food Research and Technology (INIA-CSIC), Avda. Puerta de Hierro, 28040, Madrid, Spain.
| | - Cristina A Martinez-Serrano
- Department of Biotechnology, National Institute for Agriculture and Food Research and Technology (INIA-CSIC), Cta de La Coruña Km 7,5, 28040, Madrid, Spain.
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Tutt DAR, Guven-Ates G, Kwong WY, Simmons R, Sang F, Silvestri G, Canedo-Ribeiro C, Handyside AH, Labrecque R, Sirard MA, Emes RD, Griffin DK, Sinclair KD. Developmental, cytogenetic and epigenetic consequences of removing complex proteins and adding melatonin during in vitro maturation of bovine oocytes. Front Endocrinol (Lausanne) 2023; 14:1280847. [PMID: 38027209 PMCID: PMC10647927 DOI: 10.3389/fendo.2023.1280847] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 10/02/2023] [Indexed: 12/01/2023] Open
Abstract
Background In vitro maturation (IVM) of germinal vesicle intact oocytes prior to in vitro fertilization (IVF) is practiced widely in animals. In human assisted reproduction it is generally reserved for fertility preservation or where ovarian stimulation is contraindicated. Standard practice incorporates complex proteins (CP), in the form of serum and/or albumin, into IVM media to mimic the ovarian follicle environment. However, the undefined nature of CP, together with batch variation and ethical concerns regarding their origin, necessitate the development of more defined formulations. A known component of follicular fluid, melatonin, has multifaceted roles including that of a metabolic regulator and antioxidant. In certain circumstances it can enhance oocyte maturation. At this stage in development, the germinal-vesicle intact oocyte is prone to aneuploidy and epigenetic dysregulation. Objectives To determine the developmental, cytogenetic and epigenetic consequences of removing CP and including melatonin during bovine IVM. Materials and methods The study comprised a 2 x 2 factorial arrangement comparing (i) the inclusion or exclusion of CP, and (ii) the addition (100 nM) or omission of melatonin, during IVM. Cumulus-oocyte complexes (COCs) were retrieved from stimulated cycles. Following IVM and IVF, putative zygotes were cultured to Day 8 in standard media. RNAseq was performed on isolated cumulus cells, cytogenetic analyses (SNP-based algorithms) on isolated trophectoderm cells, and DNA methylation analysis (reduced representation bisulfite sequencing) on isolated cells of the inner-cell mass. Results Removal of CP during IVM led to modest reductions in blastocyst development, whilst added melatonin was beneficial in the presence but detrimental in the absence of CP. The composition of IVM media did not affect the nature or incidence of chromosomal abnormalities but cumulus-cell transcript expression indicated altered metabolism (primarily lipid) in COCs. These effects preceded the establishment of distinct metabolic and epigenetic signatures several days later in expanded and hatching blastocysts. Conclusions These findings highlight the importance of lipid, particularly sterol, metabolism by the COC during IVM. They lay the foundation for future studies that seek to develop chemically defined systems of IVM for the generation of transferrable embryos that are both cytogenetically and epigenetically normal.
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Affiliation(s)
- Desmond A. R. Tutt
- School of Biosciences, University of Nottingham, Sutton Bonington, United Kingdom
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, United Kingdom
| | - Gizem Guven-Ates
- School of Biosciences, University of Nottingham, Sutton Bonington, United Kingdom
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, United Kingdom
| | - Wing Yee Kwong
- School of Biosciences, University of Nottingham, Sutton Bonington, United Kingdom
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, United Kingdom
| | - Rob Simmons
- Paragon Veterinary Group, Carlisle, United Kingdom
| | - Fei Sang
- School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
| | | | | | - Alan H. Handyside
- School of Biosciences, University of Kent, Canterbury, United Kingdom
| | | | - Marc-André Sirard
- CRDSI, Département des Sciences Animales, Faculté des sciences de l’agriculture et de l’alimentation, Université Laval, Quebec City, QC, Canada
| | - Richard D. Emes
- School of Biosciences, University of Nottingham, Sutton Bonington, United Kingdom
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, United Kingdom
| | - Darren K. Griffin
- School of Biosciences, University of Kent, Canterbury, United Kingdom
| | - Kevin D. Sinclair
- School of Biosciences, University of Nottingham, Sutton Bonington, United Kingdom
- School of Veterinary Medicine and Science, University of Nottingham, Sutton Bonington, United Kingdom
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Optimizing swine in vitro embryo production with growth factor and antioxidant supplementation during oocyte maturation. Theriogenology 2022; 194:133-143. [DOI: 10.1016/j.theriogenology.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/02/2022] [Accepted: 10/04/2022] [Indexed: 11/05/2022]
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Pollard CL, Younan A, Swegen A, Gibb Z, Grupen CG. Insights into the NAD + biosynthesis pathways involved during meiotic maturation and spindle formation in porcine oocytes. J Reprod Dev 2022; 68:216-224. [PMID: 35342119 PMCID: PMC9184828 DOI: 10.1262/jrd.2021-130] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Treatments that elevate NAD+ levels have been found to improve oocyte quality in mice, cattle, and pigs, suggesting that NAD+ is vital during oocyte maturation. This
study aimed to examine the influence of different NAD+ biosynthetic pathways on oocyte quality by inhibiting key enzymes. Porcine oocytes from small antral follicles were matured
for 44 h in a defined maturation system supplemented with 2-hydroxynicotinic acid [2-HNA, nicotinic acid phosphoribosyltransferase (NAPRT) inhibitor], FK866 [nicotinamide
phosphoribosyltransferase (NAMPT) inhibitor], or gallotannin [nicotinamide mononucleotide adenylyltransferase (NMNAT) inhibitor] and their respective NAD+ pathway modulators
(nicotinic acid, nicotinamide, and nicotinamide mononucleotide, respectively). Cumulus expansion was assessed after 22 h of maturation. At 44 h, maturation rates were determined and mature
oocytes were fixed and stained to assess spindle formation. Each enzyme inhibitor reduced oocyte maturation rate and adversely affected spindle formation, indicating that NAD+ is
required for meiotic spindle assembly. Furthermore, NAMPT and NMNAT inhibition reduced cumulus expansion, whereas NAPRT inhibition affected chromosomal segregation. Treating oocytes with
gallotannin and nicotinamide mononucleotide together showed improvements in spindle width, while treating oocytes with 2-HNA and nicotinic acid combined showed an improvement in both spindle
length and width. These results indicate that the salvage pathway plays a vital role in promoting oocyte meiotic progression, while the Preiss-Handler pathway is essential for spindle
assembly.
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Affiliation(s)
- Charley-Lea Pollard
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Camden, NSW 2570, Australia
| | - Ashleigh Younan
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Camden, NSW 2570, Australia
| | - Aleona Swegen
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW 2308, Australia.,Nuffield Department of Women's and Reproductive Health, University of Oxford, Oxford, UK
| | - Zamira Gibb
- Priority Research Centre for Reproductive Science, University of Newcastle, Callaghan, NSW 2308, Australia
| | - Christopher G Grupen
- Sydney School of Veterinary Science, Faculty of Science, The University of Sydney, Camden, NSW 2570, Australia
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Zhao S, Guo Z, Xiang W, Wang P. The neuroendocrine pathways and mechanisms for the control of the reproduction in female pigs. Anim Reprod 2021; 18:e20210063. [PMID: 34925558 PMCID: PMC8677349 DOI: 10.1590/1984-3143-ar2021-0063] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 11/10/2021] [Indexed: 01/05/2024] Open
Abstract
Within the hypothalamic-pituitary-gonad (HPG) axis, the major hierarchical component is gonadotropin-releasing hormone (GnRH) neurons, which directly or indirectly receive regulatory inputs from a wide array of regulatory signals and pathways, involving numerous circulating hormones, neuropeptides, and neurotransmitters, and which operate as a final output for the brain control of reproduction. In recent years, there has been an increasing interest in neuropeptides that have the potential to stimulate or inhibit GnRH in the hypothalamus of pigs. Among them, Kisspeptin is a key component in the precise regulation of GnRH neuron secretion activity. Besides, other neuropeptides, including neurokinin B (NKB), neuromedin B (NMB), neuromedin S (NMS), α-melanocyte-stimulating hormone (α-MSH), Phoenixin (PNX), show potential for having a stimulating effect on GnRH neurons. On the contrary, RFamide-related peptide-3 (RFRP-3), endogenous opioid peptides (EOP), neuropeptide Y (NPY), and Galanin (GAL) may play an inhibitory role in the regulation of porcine reproductive nerves and may directly or indirectly regulate GnRH neurons. By combining data from suitable model species and pigs, we aim to provide a comprehensive summary of our current understanding of the neuropeptides acting on GnRH neurons, with a particular focus on their central regulatory pathways and underlying molecular basis.
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Affiliation(s)
- Shuang Zhao
- College of Bioengineering, Chongqing University, Chongqing, P. R. China
| | - Zongyi Guo
- Chongqing Academy of Animal Sciences, Chongqing, P. R. China
| | - Wei Xiang
- School of Advanced Agriculture and Bioengineering, Yangtze Normal University, Fuling of Chongqing, P. R. China
| | - Pingqing Wang
- College of Bioengineering, Chongqing University, Chongqing, P. R. China
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Yong W, Ma H, Na M, Gao T, Zhang Y, Hao L, Yu H, Yang H, Deng X. Roles of melatonin in the field of reproductive medicine. Biomed Pharmacother 2021; 144:112001. [PMID: 34624677 DOI: 10.1016/j.biopha.2021.112001] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/30/2021] [Accepted: 08/01/2021] [Indexed: 12/30/2022] Open
Abstract
Melatonin, mostly released by the pineal gland, is a circadian rhythm-regulated and multifunctional hormone. Great advances in melatonin research have been made, including its role in rhythms of the sleep-wake cycle, retardation of ageing processes, as well as antioxidant or anti-inflammatory functions. Melatonin can scavenge free radicals such as reactive oxygen species (ROS), a key factor in reproductive functions. Melatonin plays an important role in oocyte maturation, fertilization and embryonic development as well. The concurrent use of melatonin increases the number of mature oocytes, the fertilization rate, and number of high-quality embryos, which improves the clinical outcome of assisted reproductive technology (ART). This review discusses the relationship between melatonin and human reproductive function, and potential clinical applications of melatonin in the field of reproductive medicine.
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Affiliation(s)
- Wei Yong
- Center Laboratory of the Fourth Affiliated Hospital, China Medical University (CMU), Shenyang, 110032, China; Department of Pharmacology, the Fourth Affiliated Hospital, CMU, Shenyang, 110032, China
| | - Haiying Ma
- Department of Pharmacology, the Fourth Affiliated Hospital, CMU, Shenyang, 110032, China
| | - Man Na
- Center Laboratory of the Fourth Affiliated Hospital, China Medical University (CMU), Shenyang, 110032, China; Department of Pharmacology, the Fourth Affiliated Hospital, CMU, Shenyang, 110032, China
| | - Teng Gao
- Center Laboratory of the Fourth Affiliated Hospital, China Medical University (CMU), Shenyang, 110032, China; Department of Pharmacology, the Fourth Affiliated Hospital, CMU, Shenyang, 110032, China
| | - Ye Zhang
- Center Laboratory of the Fourth Affiliated Hospital, China Medical University (CMU), Shenyang, 110032, China; Department of Pharmacology, the Fourth Affiliated Hospital, CMU, Shenyang, 110032, China
| | - Liying Hao
- Institute of Medical Toxicology, College of Pharmacology, China Medical University, Shenyang, China
| | - Hang Yu
- Department of Biophysics, CMU, Shenyang, 110122, China
| | - Huazhe Yang
- Department of Biophysics, CMU, Shenyang, 110122, China
| | - Xin Deng
- Center Laboratory of the Fourth Affiliated Hospital, China Medical University (CMU), Shenyang, 110032, China.
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Pyeon DB, Lee SE, Yoon JW, Park HJ, Park CO, Kim SH, Oh SH, Lee DG, Kim EY, Park SP. The antioxidant dieckol reduces damage of oxidative stress-exposed porcine oocytes and enhances subsequent parthenotes embryo development. Mol Reprod Dev 2021; 88:349-361. [PMID: 33843103 DOI: 10.1002/mrd.23466] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 12/24/2020] [Indexed: 12/13/2022]
Abstract
This study investigated the effect of the antioxidant dieckol, a component of Ecklonia cava, on maturation and developmental competence of porcine oocytes exposed to oxidative stress in vitro. Oocytes were matured in in vitro maturation (IVM) medium containing various concentrations of dieckol. The blastocyst formation rate was highest in the 0.5 μM dieckol-treated (0.5 DEK) group. The reactive oxygen species level was decreased, and the level of glutathione and expression of antioxidant genes (NFE2L, SOD1, and SOD2) at metaphase II were increased in the 0.5 DEK group. Abnormal spindle organization and chromosome misalignment were prevented in the 0.5 DEK group. Expression of maternal markers (CCNB1 and MOS) and activity of p44/42 mitogen-activated protein kinase were increased in the 0.5 DEK group. After parthenogenetic activation, the total number of cells per blastocyst was increased and the percentage of apoptotic cells was decreased in the 0.5 DEK group. Expression of development-related genes (CX45, CDX2, POU5F1, and NANOG), antiapoptotic genes (BCL2L1 and BIRC5), and a proapoptotic gene (CASP3) were altered in the 0.5 DEK group. These results indicate that the antioxidant dieckol improves IVM and subsequent development of porcine oocytes and can be used to improve the quality of oocytes under peroxidation experimental conditions.
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Affiliation(s)
- Da-Bin Pyeon
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Seung-Eun Lee
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Jae-Wook Yoon
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Hyo-Jin Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Chan-Oh Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - So-Hee Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Seung-Hwan Oh
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Do-Geon Lee
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
| | - Eun-Young Kim
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
- Mirae Cell Bio, Seoul, Korea
| | - Se-Pill Park
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju-si, Jeju Province, Korea
- Stem Cell Research Center, Jeju National University, Jeju-si, Jeju Province, Korea
- Mirae Cell Bio, Seoul, Korea
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Winn E, Whitaker BD. Quercetin supplementation to the thawing and incubation media of boar sperm improves post-thaw sperm characteristics and the in vitro production of pig embryos. Reprod Biol 2020; 20:315-320. [PMID: 32586751 DOI: 10.1016/j.repbio.2020.06.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/08/2020] [Accepted: 06/13/2020] [Indexed: 12/11/2022]
Abstract
Elevated levels of reactive oxygen species can cause oxidative stress, which could lead to membrane damage, decreased fertility, and spermatozoan morphological deformities. Antioxidants can be supplemented to reduce the impacts of oxidative stress. The objective of this study was to determine the effects of supplementing quercetin (0.25, 0.50, 0.75 mM) during the thawing and incubation of frozen-thawed boar semen on spermatozoan characteristics, IVF kinetics (n = 400) and subsequent embryonic development (n = 1340). Spermatozoa were evaluated for motility, viability, and membrane lipid peroxidation levels at 0, 2, 4, 6, 8, and 10 h after thawing. Embryos were evaluated for IVF kinetics 12 h after IVF (penetration, polyspermy, male pronucleus formation, IVF efficiency) and cleavage and blastocyst formation at 48 h and 144 h after IVF, respectively. Spermatozoa supplemented with 0.25 mM quercetin had significantly higher (P < 0.05) motility (51.67±8.50 %) and percent of viable cells (61.21 ± 2.44 %) compared to all other treatments at 10 h after thawing, in addition to having significantly (P < 0.05) lower levels of hydroperoxide (3.38 ± 0.88 μM/107cells). There were no differences in penetration rates and male pronucleus formation between treatment groups. Supplementation of quercetin significantly decreased (P < 0.05) polyspermy and significantly increased (P < 0.05) the percentage of embryos reaching blastocyst stage of development by 144 h after IVF compared to no supplementation. Results indicated that supplementing frozen-thawed boar semen with 0.25 mM quercetin improves sperm characteristics up to 10 h after thawing and decreases polyspermy while improving early embryonic development in pigs.
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Affiliation(s)
- Emily Winn
- Department of Animal and Pre-veterinary Studies, University of Findlay, Findlay OH, 45840, USA
| | - Brian Daniel Whitaker
- Department of Animal and Pre-veterinary Studies, University of Findlay, Findlay OH, 45840, USA.
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