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Chen X, Hong L, Mo M, Xiao S, Yin T, Liu S. Contributing factors for pregnancy outcomes in women with PCOS after their first FET treatment: a retrospective cohort study. Gynecol Endocrinol 2024; 40:2314607. [PMID: 38349325 DOI: 10.1080/09513590.2024.2314607] [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: 11/06/2023] [Accepted: 01/30/2024] [Indexed: 02/15/2024] Open
Abstract
OBJECTIVE We aim to explore the contributing factors of clinical pregnancy outcomes in PCOS patients undergoing their first FET treatment. METHODS A retrospective analysis was conducted on 574 PCOS patients undergoing their first FET treatment at a private fertility center from January 2018 to December 2021. RESULTS During the first FET cycle of PCOS patients, progesterone levels (aOR 0.109, 95% CI 0.018-0.670) and endometrial thickness (EMT) (aOR 1.126, 95% CI 1.043-1.419) on the hCG trigger day were associated with the clinical pregnancy rate. Similarly, progesterone levels (aOR 0.055, 95% CI 0.007-0.420) and EMT (aOR 1.179, 95% CI 1.011-1.376) on the hCG trigger day were associated with the live birth rate. In addition, AFC (aOR 1.179, 95% CI 1.011-1.376) was found to be a risk factor for preterm delivery. CONCLUSIONS In women with PCOS undergoing their first FET, lower progesterone levels and higher EMT on hCG trigger day were associated with clinical pregnancy and live birth, and AFC was a risk factor for preterm delivery. During FET treatment, paying attention to the patient's endocrine indicators and follicle status may have a positive effect on predicting and improving the pregnancy outcome of PCOS patients.
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Affiliation(s)
- Xi Chen
- Reproductive Medical Centre, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ling Hong
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Meilan Mo
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Shan Xiao
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
| | - Tailang Yin
- Reproductive Medical Centre, Renmin Hospital of Wuhan University, Wuhan, China
| | - Su Liu
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-implantation, Shenzhen Zhongshan Institute for Reproduction and Genetics, Shenzhen Zhongshan Urology Hospital, Shenzhen, China
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2
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Kleemann DO, Kelly JM, Foyster KM, Swinbourne AM, Weaver AC, Walker SK. Effects of short and long - term nutrition and progesterone supplementation on the success of fixed - time artificial insemination in the ewe. Anim Reprod Sci 2024; 265:107477. [PMID: 38663150 DOI: 10.1016/j.anireprosci.2024.107477] [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: 12/11/2023] [Revised: 03/10/2024] [Accepted: 04/17/2024] [Indexed: 05/24/2024]
Abstract
The success of fixed - time artificial insemination (AI) in the ewe is variable due to poor synchrony of estrus. We examined the effects of long-term nutrition (LTN; low, medium, high - 6 months), short-term nutrition (STN; 1.0 M, 1.5 M - 14 days) and progesterone supplementation (P; single pessary, replacement on Day 9) on synchrony and reproductive outcomes. High LTN advanced (P < 0.05) estrus, increased (P = 0.06) pregnancy (range 71.1 - 81.1%) and improved (P < 0.01) litter size (range 1.30 - 1.50). STN increased (P < 0.05) pregnancy (79.0 versus 72.3%) but not litter size or timing of estrus. A LTN x STN interaction (P < 0.01) for time of estrus indicates that the effects of LTN were moderated by STN depending on the level of LTN. Pessary replacement delayed (P < 0.05) the onset of estrus, improved synchrony but did not affect pregnancy or litter size. High LTN increased (P < 0.05) the number of large (≥ 3.8 mm) and medium - size follicles (2.0 - 3.7 mm) but the diameter of large follicles tended to be reduced (P = 0.08) on Day 12. STN did not affect follicle number or size whilst P reduced (P < 0.05) the diameter of large follicles on Day 12 (4.83 versus 5.10 mm) and increased the number of medium - size follicles (3.56 versus 2.74 mm). In conclusion, both LTN and STN are major sources of variability in AI programs whilst pessary replacement has potential to reduce variability.
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Affiliation(s)
- David O Kleemann
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
| | - Jennifer M Kelly
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
| | - Kimberley M Foyster
- School of Animal and Veterinary Sciences, Roseworthy Campus, The University of Adelaide, Roseworthy, South Australia 5371, Australia.
| | - Alyce M Swinbourne
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
| | - Alice C Weaver
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
| | - Simon K Walker
- Turretfield Research Centre, South Australian Research and Development Institute, Holland Road, Rosedale, South Australia 5350, Australia.
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3
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Weaver AC, Kind KL, Kelly JM, Herde P, van Wettere WHJ. Effect of split weaning on follicle development and oocyte quality in multiparous sows. Anim Reprod Sci 2024; 262:107434. [PMID: 38368653 DOI: 10.1016/j.anireprosci.2024.107434] [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: 10/07/2023] [Revised: 02/11/2024] [Accepted: 02/11/2024] [Indexed: 02/20/2024]
Abstract
Increasing piglet weaning age while maintaining the reproductive efficiency of the breeding herd depends on being able to stimulate sows to ovulate during lactation without reducing subsequent pregnancy rates and litter sizes. Embryo survival is affected by the quality of the oocytes shed at ovulation, and oocyte quality is profoundly impacted by the follicular environment in which the oocyte matures. This study determined the effect of reducing suckled litter size from 11 to 7 piglets on day 18 of lactation on the ovarian follicular environment and oocyte developmental competence at day 21 of lactation. Thirty-nine, Large White X Landrace sows (parity 3.2 ± 0.2; mean ± SEM; range 2-6) had their litter size either maintained at 11 piglets (control); or reduced to seven piglets on day 18 of lactation (split wean (SW)). Sows were slaughtered on day 21 of lactation and ovaries were collected for analysis of follicular fluid composition and in vitro blastocyst development rates. There was no effect of split weaning on fertilisation rate and development to blastocyst stage; however, a greater proportion of blastocysts from control sows were classified as early blastocyst stage. Furthermore, follicular fluid concentrations of oestradiol were higher in SW sows. Together, these results indicate split weaning prior to mating in lactation alters the ovarian follicular environment and while blastocyst development rates were unaffected, embryos from control sows may be of poorer quality as indicated by a delay in development.
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Affiliation(s)
- Alice C Weaver
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, SA 5371, Australia.
| | - Karen L Kind
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, SA 5371, Australia; Robinson Research Institute, The University of Adelaide, SA 5005, Australia
| | - Jennifer M Kelly
- South Australian Research and Development Institute, Turretfield Research Centre, Rosedale, SA 5350 Australia
| | - Paul Herde
- South Australian Research and Development Institute, Pig and Poultry Production Institute, University of Adelaide, Roseworthy, SA 5371, Australia
| | - William He J van Wettere
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy Campus, Roseworthy, SA 5371, Australia
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4
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Brown W, Oliveira M, Reis Silva R, Woodruff K, Bisha B, Demetrio D, Block J. Effects of mycobacterium cell wall fraction on embryo development following in vitro embryo production and pregnancy rates following embryo transfer in virgin dairy heifers. Theriogenology 2024; 215:334-342. [PMID: 38134681 DOI: 10.1016/j.theriogenology.2023.12.019] [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: 08/10/2023] [Revised: 11/28/2023] [Accepted: 12/13/2023] [Indexed: 12/24/2023]
Abstract
An experiment was conducted to determine whether administration of mycobacterium cell wall fraction (MCWF; Amplimune, NovaVive) could enhance embryo developmental competence following in vitro embryo production (IVP) and pregnancy establishment after embryo transfer (ET). Nulliparous, Holstein heifers (n = 40; age 8-15 months) were submitted to two rounds of ovum pick-up (OPU) and IVP in a crossover design. Thirty-six h after follicle wave synchronization, treatments (saline or MCWF, 5 mL, im) were administered in conjunction with a single dose of follicle stimulating hormone (175 IU) and OPU was performed 48-52 h later. Recovered cumulus-oocyte complexes were used for IVP to assess embryo development. For ET, nulliparous, Holstein heifers (n = 225; age 12-18 months) were used as recipients. At 12-24 h after detection of spontaneous estrus, recipients were randomly treated with either saline or MCWF (5 mL, im). The effect of MCWF on pregnancy per ET (P/ET) was assessed in a 2 × 2 factorial design with recipients treated with or without MCWF receiving a fresh IVP embryo from a donor treated with or without MCWF at day 7 or 8 after detected estrus. Blood samples were collected from a subset of donors (n = 8) and recipients (n = 26 to 33 per treatment) prior to treatment and at 6 and 24 h post-treatment to determine serum concentration of interleukin (IL)-1β, IL-6, tumor necrosis factor-α, and interferon-γ. Blood samples were also collected from a group of recipients (n = 31 to 39 per treatment) to assess serum concentration of progesterone at days 4, 7, and 16 post-treatment. Pregnancy status was determined at days 40 and 100 of gestation. Donor treatment with MCWF tended (P < 0.07) to increase the proportion of oocytes that developed into transferable embryos, but there was no effect of MCWF on other parameters of embryo development. The P/ET at days 40 and 100 of gestation and pregnancy loss were not affected by donor treatment or recipient treatment with MCWF and there was no interaction. Serum concentration of proinflammatory cytokines among donors and recipients and serum concentration of progesterone among recipients were not increased by treatment with MCWF. Results of the present study indicate that treatment of donors with MCWF has minimal impact on subsequent embryo development following IVP. Moreover, regardless of whether donors or recipients were treated with MCWF, there was no effect on P/ET following transfer of IVP embryos.
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Affiliation(s)
- W Brown
- Department of Animal Science, University of Wyoming, Laramie, WY, USA
| | | | - R Reis Silva
- EVZ, Federal University of Goias, Goiania, GO, Brazil
| | - K Woodruff
- Department of Animal Science, University of Wyoming, Laramie, WY, USA
| | - B Bisha
- Department of Animal Science, University of Wyoming, Laramie, WY, USA
| | | | - J Block
- Department of Animal Science, University of Wyoming, Laramie, WY, USA.
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5
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Phong V, Fujikawa T, Kawano K, Yanagawa Y, Katagiri S. Effects of prostaglandin F 2α treatment at follicular wave emergence on endometrial epidermal growth factor concentration on day 3 of the next estrous cycle and on fertility in dairy cows. Theriogenology 2023; 212:189-196. [PMID: 37748361 DOI: 10.1016/j.theriogenology.2023.09.014] [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: 04/25/2023] [Revised: 09/16/2023] [Accepted: 09/18/2023] [Indexed: 09/27/2023]
Abstract
Inadequate exposure to estradiol (E2) and progesterone (P4) may be the main causes of altered endometrial epidermal growth factor (EGF) profile, leading to reduced fertility in dairy cows. We hypothesized that PGF2α administration at different timings of the estrous cycle and stages of follicular development could change the profile of steroid hormones between luteolysis and estrus. This results in reduction in the peak concentration of endometrial EGF on day 3 (day 0 = estrus) in the next estrous cycle. In study 1, lactating Holstein cows were treated with PGF2α either on days 12-14 (selection phase group, n = 20) or on days 16-17 (control group, n = 24) of the estrous cycle. Blood samples were obtained before PGF2α treatment, 24 and 48 h after treatment, and on the day of estrus and ovulation for E2 and P4 assays. Endometrial tissues were collected by biopsy on day 3 for EGF assays. The duration from PGF2α treatment to both estrus and ovulation was longer in the selection phase group than in the control group (P < 0.05). The time between estrus and ovulation was longer in the selection phase group (P < 0.05). E2 concentrations were higher in the control group on the day of estrus (P < 0.05). P4 concentrations were not different between the groups. Endometrial EGF concentrations were lower in the selection phase group than in the control group (P < 0.05). In study 2, lactating Holstein cows were treated with PGF2α either on day 12 (selection phase group, n = 76) or day 16 (control group, n = 80). They were subjected to artificial insemination (AI) at estrus, and those that failed to ovulate by 24h after the first AI were subjected to second AI. On day 3, endometrial EGF concentration was determined. At estrus and on days 3 and 7, blood was collected for E2 and P4 assay from 20 randomly selected cows in each group before PGF2α treatment. The cows in the selection phase group exhibited lower EGF concentration, proportion of cows with normal EGF profile, and conception rate than cows in the control group (P < 0.05). On the day of estrus, E2 concentrations tended to be lower in the selection phase group than in the control group (P = 0.08). P4 concentrations were not different between the groups. These findings suggest that low E2 concentrations at estrus and low P4 concentrations for a prolonged period due to premature termination of CL in the absence of a dominant follicle are potential causes of altered endometrial EGF profile in dairy cows.
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Affiliation(s)
- Vuongtuan Phong
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | | | - Kohei Kawano
- Laboratory of Theriogenology, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan; Laboratory of Reproductive Physiology, Faculty of Environmental, Life, Natural Science and Technology, Okayama University, Okayama, 700-8530, Japan
| | - Yojiro Yanagawa
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Seiji Katagiri
- Laboratory of Theriogenology, Department of Clinical Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
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6
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Liu ZB, Zhang JB, Li SP, Yu WJ, Pei N, Jia HT, Li Z, Lv WF, Wang J, Kim NH, Yuan B, Jiang H. ID3 regulates progesterone synthesis in bovine cumulus cells through modulation of mitochondrial function. Theriogenology 2023; 209:141-150. [PMID: 37393744 DOI: 10.1016/j.theriogenology.2023.06.035] [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: 04/06/2023] [Revised: 06/05/2023] [Accepted: 06/23/2023] [Indexed: 07/04/2023]
Abstract
DNA binding inhibitory factor 3 (ID3) has been shown to have a key role in maintaining proliferation and differentiation. It has been suggested that ID3 may also affect mammalian ovarian function. However, the specific roles and mechanisms are unclear. In this study, the expression level of ID3 in cumulus cells (CCs) was inhibited by siRNA, and the downstream regulatory network of ID3 was uncovered by high-throughput sequencing. The effects of ID3 inhibition on mitochondrial function, progesterone synthesis, and oocyte maturation were further explored. The GO and KEGG analysis results showed that after ID3 inhibition, differentially expressed genes, including StAR, CYP11A1, and HSD3B1, were involved in cholesterol-related processes and progesterone-mediated oocyte maturation. Apoptosis in CC was increased, while the phosphorylation level of ERK1/2 was inhibited. During this process, mitochondrial dynamics and function were disrupted. In addition, the first polar body extrusion rate, ATP production and antioxidation capacity were reduced, which suggested that ID3 inhibition led to poor oocyte maturation and quality. The results will provide a new basis for understanding the biological roles of ID3 as well as cumulus cells.
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Affiliation(s)
- Zi-Bin Liu
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China
| | - Jia-Bao Zhang
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China
| | - Sheng-Peng Li
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China
| | - Wen-Jie Yu
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China
| | - Na Pei
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China
| | - Hai-Tao Jia
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China
| | - Ze Li
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China
| | - Wen-Fa Lv
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, 130118, People's Republic of China
| | - Jun Wang
- College of Animal Science and Technology, Jilin Agricultural University, Changchun, Jilin, 130118, People's Republic of China
| | - Nam-Hyung Kim
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China; Department of Animal Science, Chungbuk National University, Cheongju, Chungbuk, 28644, Republic of Korea
| | - Bao Yuan
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China.
| | - Hao Jiang
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, Jilin, 130062, People's Republic of China.
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7
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Yousuf S, Malik WA, Feng H, Liu T, Xie L, Miao X. Genome wide identification and characterization of fertility associated novel CircRNAs as ceRNA reveal their regulatory roles in sheep fecundity. J Ovarian Res 2023; 16:115. [PMID: 37340323 DOI: 10.1186/s13048-023-01178-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 04/29/2023] [Indexed: 06/22/2023] Open
Abstract
Reproductive traits play a vital role in determining the production efficiency of sheep. Maximizing the production is of paramount importance for breeders worldwide due to the growing population. Circular RNAs (circRNAs) act as miRNA sponges by absorbing miRNA activity through miRNA response elements (MREs) and participate in ceRNA regulatory networks (ceRNETs) to regulate mRNA expression. Despite of extensive research on role of circRNAs as miRNA sponges in various species, their specific regulatory roles and mechanism in sheep ovarian tissue are still not well understood. In this study, we performed whole genome sequencing of circRNAs, miRNA and mRNA employing bioinformatic techniques on ovine tissues of two contrasting sheep breeds "Small tail Han (X_LC) and Dolang sheep (D_LC)", which results into identification of 9,878 circRNAs with a total length of 23,522,667 nt and an average length of 2,381.32 nt. Among them, 44 differentially expressed circRNAs (DECs) were identified. Moreover, correlation between miRNA-mRNA and lncRNA-miRNA provided us with to prediction of miRNA binding sites on nine differentially expressed circRNAs and 165 differentially expressed mRNAs using miRanda. miRNA-mRNA and lncRNA-miRNA pairs with negative correlation were selected to determine the ceRNA score along with positively correlated pairs from lncRNA and mRNA network. Integration of ceRNA score and positively correlated pairs exhibit a significant ternary relationship among circRNAs-miRNA-mRNA demonestrated by ceRNA, comprising of 50 regulatory pairs sharring common nodes and predicted potential differentially expressed circRNAs-miRNAs-mRNAs regulatory axis. Based on functional enrichment analysis shortlisted key ceRNA regulatory pairs associated with reproduction including circRNA_3257-novel579_mature-EPHA3, circRNA_8396-novel130_mature-LOC101102473, circRNA_4140- novel34_mature > novel661_mature-KCNK9, and circRNA_8312-novel339_mature-LOC101110545. Furthermore, expression profiling, functional enrichments and qRT-PCR analysis of key target genes infer their implication in reproduction and metabolism. ceRNA target mRNAs evolutionary trajectories, expression profiling, functional enrichments, subcellular localizations following genomic organizations will provide new insights underlying molecular mechanisms of reproduction, and establish a solid foundation for future research. Graphical abstract summarizing the scheme of study.
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Affiliation(s)
- Salsabeel Yousuf
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Waqar Afzal Malik
- Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China
| | - Hui Feng
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Tianyi Liu
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Lingli Xie
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xiangyang Miao
- Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Zhao H, He X, Zhang X, Shi J, Zhou R, Mai R, Su Q, Cai G, Huang S, Xu Z, Wu Z, Li Z. Progesterone and Androstenedione Are Important Follicular Fluid Factors Regulating Porcine Oocyte Maturation Quality. Animals (Basel) 2023; 13:1811. [PMID: 37889685 PMCID: PMC10251964 DOI: 10.3390/ani13111811] [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: 05/04/2023] [Revised: 05/25/2023] [Accepted: 05/29/2023] [Indexed: 10/29/2023] Open
Abstract
Oocytes matured in vitro are useful for assisted human and farm animal reproduction. However, the quality of in vitro matured oocytes is usually lower than that of in vivo matured oocytes, possibly due to the absence of some important signal regulators in vitro. In this study, untargeted metabolomics was used to detect the changes in the metabolites in the follicular fluid (FF) during in vivo pig oocyte maturation and in the culture medium during in vitro maturation. Our results showed that the total metabolite changing profile of the in vivo FF was different from that of the in vitro maturation medium, but the levels of 23 differentially expressed metabolites (DEMs) changed by following the same trend during both in vivo and in vitro pig oocyte maturation. These 23 metabolites may be important regulators of porcine oocyte maturation. We found that progesterone and androstenedione, two factors in the ovarian steroidogenesis pathway enriched from the DEMs, were upregulated in the FF during in vivo pig oocyte maturation. The levels of these two factors were 31 and 20 fold, respectively, and they were higher in the FF than in the culture medium at the oocyte mature stage. The supplementation of progesterone and androstenedione during in vitro maturation significantly improved the pig oocyte maturation rate and subsequent embryo developmental competence. Our finding suggests that a metabolic abnormality during in vitro pig oocyte maturation affects the quality of the matured oocytes. This study identified some important metabolites that regulate oocyte maturation and their developmental potential, which will be helpful to improve assisted animal and human reproduction.
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Affiliation(s)
- Huaxing Zhao
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; (H.Z.)
- State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510642, China
| | - Xiaohua He
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; (H.Z.)
- State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510642, China
| | - Xianjun Zhang
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; (H.Z.)
- State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510642, China
| | - Junsong Shi
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510642, China
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527439, China
| | - Rong Zhou
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527439, China
| | - Ranbiao Mai
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527439, China
| | - Qiaoyun Su
- Guangdong Wens Breeding Swine Technology Co., Ltd., Yunfu 527439, China
| | - Gengyuan Cai
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; (H.Z.)
- State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510642, China
| | - Sixiu Huang
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; (H.Z.)
- State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510642, China
| | - Zheng Xu
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; (H.Z.)
- State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510642, China
| | - Zhenfang Wu
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; (H.Z.)
- State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
| | - Zicong Li
- National Engineering Research Center for Breeding Swine Industry, South China Agricultural University, Guangzhou 510642, China; (H.Z.)
- State Key Laboratory of Livestock and Poultry Breeding, South China Agricultural University, Guangzhou 510642, China
- Guangdong Provincial Key Laboratory of Agro-Animal Genomics and Molecular Breeding, South China Agricultural University, Guangzhou 510642, China
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, Guangzhou 510642, China
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
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9
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Enhanced progesterone support during stimulated cycles of transvaginal follicular aspiration improves bovine in vitro embryo production. Theriogenology 2023; 199:77-85. [PMID: 36706702 DOI: 10.1016/j.theriogenology.2023.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 01/02/2023] [Accepted: 01/03/2023] [Indexed: 01/05/2023]
Abstract
The in vitro production (IVP) of cattle embryos requires that germinal-vesicle stage oocytes undergo a period of maturation in vitro prior to fertilization and culture to the blastocyst stage. Success of IVP in taurine cattle is enhanced following ovarian stimulation prior to oocyte retrieval (OPU), particularly if preceded by a short period of FSH withdrawal ('coasting'). However, evidence regarding the importance of progesterone (P4) support during OPU-IVP is equivocal. The current study, therefore, determined the effects of increased peripheral P4 concentrations during FSH-stimulated ('coasted') cycles of OPU. Progesterone support was provided by either an active corpus luteum (CL) and/or one of two intravaginal P4 releasing devices (i.e., CIDR® [1.38 g P4] or PRID® Delta [1.55 g P4]). Expt. 1 established an initial estrus prior to OPU, allowing CL formation (single luteal phase) spanning the first two of five cycles of OPU; the remaining three cycles were supported by either a CIDR® or PRID® Delta. Expt. 2 commenced with two cycles of dominant follicle removal (including prostaglandin F2α) undertaken seven days apart prior to six cycles of OPU. The absence of a CL meant that these cycles were supported only by a CIDR® or PRID® Delta. As each experiment involved several sequential cycles of OPU, the cumulative effects of device use on vaginal discharges were also assessed. Each experiment involved 10 sexually mature Holstein heifers. In the absence of a CL, peak plasma P4 concentrations were greater (P = 0.002) for the PRID® Delta (4.3 ± 0.22) than for the CIDR® (2.9 ± 0.22). In Expt. 1 there was an interaction (P < 0.05) between CL presence at OPU and P4 device on Day 8 blastocyst yields, indicating an effect of P4 device only when the CL was absent. The percentage hatching/hatched blastocysts of matured oocytes for the CIDR® and PRID® Delta was 44.3 ± 5.04 and 41.0 ± 5.40 in the presence, and 17.1 ± 3.48 and 42.2 ± 3.76 in the absence, of a CL (P = 0.018). Combined analyses of data from Expt. 1 and 2, when no CL was present, confirmed that Day 8 blastocyst yields were greater (P = 0.022) for the PRID® Delta than the CIDR®. Vaginal discharge scores were higher (P < 0.001) for the PRID® Delta than the CIDR® in Expt. 1 but not in Expt 2; however scores were low, did not increase with repeated use, and thus were deemed of no clinical or welfare concern. In conclusion, enhanced P4 support during FSH-stimulated cycles of OPU-IVP can improve in vitro embryo development.
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Vasilopoulou C, McDaid-McCloskey SL, McCluskey G, Duguez S, Morris AP, Duddy W. Genome-Wide Gene-Set Analysis Identifies Molecular Mechanisms Associated with ALS. Int J Mol Sci 2023; 24:4021. [PMID: 36835433 PMCID: PMC9966913 DOI: 10.3390/ijms24044021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/26/2023] [Accepted: 02/02/2023] [Indexed: 02/19/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal late-onset motor neuron disease characterized by the loss of the upper and lower motor neurons. Our understanding of the molecular basis of ALS pathology remains elusive, complicating the development of efficient treatment. Gene-set analyses of genome-wide data have offered insight into the biological processes and pathways of complex diseases and can suggest new hypotheses regarding causal mechanisms. Our aim in this study was to identify and explore biological pathways and other gene sets having genomic association to ALS. Two cohorts of genomic data from the dbGaP repository were combined: (a) the largest available ALS individual-level genotype dataset (N = 12,319), and (b) a similarly sized control cohort (N = 13,210). Following comprehensive quality control pipelines, imputation and meta-analysis, we assembled a large European descent ALS-control cohort of 9244 ALS cases and 12,795 healthy controls represented by genetic variants of 19,242 genes. Multi-marker analysis of genomic annotation (MAGMA) gene-set analysis was applied to an extensive collection of 31,454 gene sets from the molecular signatures database (MSigDB). Statistically significant associations were observed for gene sets related to immune response, apoptosis, lipid metabolism, neuron differentiation, muscle cell function, synaptic plasticity and development. We also report novel interactions between gene sets, suggestive of mechanistic overlaps. A manual meta-categorization and enrichment mapping approach is used to explore the overlap of gene membership between significant gene sets, revealing a number of shared mechanisms.
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Affiliation(s)
- Christina Vasilopoulou
- Personalised Medicine Centre, School of Medicine, Ulster University, Londonderry BT47 6SB, UK
| | | | - Gavin McCluskey
- Personalised Medicine Centre, School of Medicine, Ulster University, Londonderry BT47 6SB, UK
| | - Stephanie Duguez
- Personalised Medicine Centre, School of Medicine, Ulster University, Londonderry BT47 6SB, UK
| | - Andrew P. Morris
- Centre for Genetics and Genomics Versus Arthritis, Centre for Musculoskeletal Research, University of Manchester, Manchester M13 9PT, UK
| | - William Duddy
- Personalised Medicine Centre, School of Medicine, Ulster University, Londonderry BT47 6SB, UK
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Ho KT, Balboula AZ, Homma K, Takanari J, Bai H, Kawahara M, Thi Kim Nguyen K, Takahashi M. Synergistic effect of standardized extract of Asparagus officinalis stem and heat shock on progesterone synthesis with lipid droplets and mitochondrial function in bovine granulosa cells. J Steroid Biochem Mol Biol 2023; 225:106181. [PMID: 36150639 DOI: 10.1016/j.jsbmb.2022.106181] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/07/2022] [Accepted: 09/18/2022] [Indexed: 02/01/2023]
Abstract
Progesterone (P4) is a well-known steroid hormone that plays a key role in oocyte growth and the maintenance of pregnancy in mammals, including cattle. Heat stress (HS) has an adverse effect on P4 synthesis through an imbalance in the cellular redox status. We have recently revealed that a standardized extract of Asparagus officinalis stem (EAS) increases P4 through non-HS induction of heat shock protein 70 (HSP70) and a synergistic increase of HSP70 by enhancing the intracellular redox balance, which was adversely affected by HS in bovine granulosa cells (GCs). Bovine GCs collected from bovine ovarian follicles were cultured at 38.5 °C and 41 °C for 12 h with or without 5 mg/mL EAS. After treatment, cells and culture suppernatant were collected for the analysis. Enzyme-linked immunosorbent assay (ELISA) was performed to detect in P4 levels. Quantitative reverse-transcription polymerase chain reaction (RT-qPCR) was used to detect expression of steroidogenesis related genes. Fluorescence staining was used to detect mitochondrial activity and lipid droplet. P4 level was increased by EAS treatment in association with increase in steroidogenic acute regulatory protein (STAR), 3β-hydroxysteroid dehydrogenase (3β-HSD), mitochondrial membrane activity and lipid droplet both under non-HS and HS conditions. Notably, synergistic effect of EAS with HS co-treatment was observed to show a greater increase in P4 synthesis when comparison with EAS treatment under non-HS condition. Furthermore, inhibition of HSP70 significantly reduced EAS-induced P4 synthesis, mitochondrial activity and synthesis of lipid droplets. These results suggest that P4 synthesis by EAS is mediated by the steroidogenesis pathway via HSP70-regulated activation of STAR and 3β-HSD, together with improved mitochondrial activity and lipid metabolism in bovine GCs. Moreover, effect of EAS has a synergistic effect of with HSP70-regulated steroidogenesis pathway.
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Affiliation(s)
- Khoi Thieu Ho
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan; College of Agriculture, Can Tho University, Can Tho City, Viet Nam
| | | | - Kohei Homma
- AMINO UP Co. Ltd., Sapporo, Hokkaido 004-0839, Japan
| | - Jun Takanari
- AMINO UP Co. Ltd., Sapporo, Hokkaido 004-0839, Japan
| | - Hanako Bai
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | - Manabu Kawahara
- Graduate School of Agriculture, Hokkaido University, Sapporo, Hokkaido 060-8589, Japan
| | | | - Masashi Takahashi
- Research Faculty of Agriculture, Hokkaido University, Sapporo, Hokkaido, 060-8589, Japan.
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Qin Y, Feng S, Zheng M, Liu X, Zhao J, Zhao Q, Ye J, Mi J, Zhong Y. Progesterone Promotes In Vitro Maturation of Domestic Dog Oocytes Leading to Successful Live Births. Life (Basel) 2022; 12:life12111778. [PMID: 36362933 PMCID: PMC9698205 DOI: 10.3390/life12111778] [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: 10/08/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Gene-edited dogs are promising models for biomedical research because they have hundreds of genetic diseases that are similar to humans. A common method for producing gene-edited dogs is assisted reproductive technology (ART) using in vivo oocytes or embryos, but it is much more inefficient and has a higher cost. ART for dogs has lagged mostly because of the lack of an efficient in vitro maturation system. Because early maturation of canine oocytes occurs in follicles with extremely high concentrations of progesterone (P4), we hypothesize that P4 has an important role during maturation. In this study, we obtained ovaries of female dogs and collected cumulus−oocyte complexes, which were cultured in vitro in microdrops containing different P4 concentrations (0, 10, 40, 100 or 200 µg/mL). We found that 40 µg/mL P4 produced the highest oocyte maturation rate (29.7% ± 7.1%, p < 0.05). We also evaluated the quality of in vitro matured oocytes by in vitro fertilization and single-cell RNA sequencing, and both indicated an improvement in oocyte developmental potential. In conclusion, we successfully obtained the first live dogs using in vitro matured oocytes by adding P4 to optimize the in vitro maturation system of canine oocytes, and established a new and low-cost method to produce dogs via in vitro maturation and in vitro fertilization.
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Affiliation(s)
- Yumin Qin
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Shenjiong Feng
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Min Zheng
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
| | - Xiaojuan Liu
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
| | - Jianping Zhao
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
| | - Qintao Zhao
- Nanchang Police-dog Base of the Ministry of Public Security of PRC, Nanchang 330100, China
| | - Junhua Ye
- Nanchang Police-dog Base of the Ministry of Public Security of PRC, Nanchang 330100, China
- Correspondence: (J.Y.); (J.M.); (Y.Z.)
| | - Jidong Mi
- Beijing SINOGENE Biotechnology Co., Ltd., Beijing 102200, China
- Correspondence: (J.Y.); (J.M.); (Y.Z.)
| | - Yougang Zhong
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Correspondence: (J.Y.); (J.M.); (Y.Z.)
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Anbo N, Suzuki A, Mukangwa M, Takahashi R, Muranishi Y, Tetsuka M. Progesterone stimulates cortisol production in the maturing bovine cumulus-oocyte complex. Theriogenology 2022; 189:183-191. [PMID: 35780557 DOI: 10.1016/j.theriogenology.2022.06.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 06/13/2022] [Accepted: 06/17/2022] [Indexed: 12/20/2022]
Abstract
In the bovine cumulus oophorus, 11β-hydroxysteroid dehydrogenase type 1 (HSD11B1)-mediated cortisol production dramatically increases during the periovulatory period. This event is closely associated with increased progesterone (P4) production, implying a functional connection between these C21 steroids. In this study, we investigated the mutual regulation of P4 and cortisol production in the bovine cumulus oophorus. Bovine cumulus-oocyte complexes (COCs) were aspirated from follicles 2-5 mm in diameter and subjected to in vitro maturation (IVM) for 24 h in an M199 supplemented with fetal calf serum (FCS) and follicle-stimulating hormone (FSH). COCs were treated with trilostane (0, 0.1, 1, 10 mM), an inhibitor of P4 synthesis, RU486 (0, 0.1, 1, 10 mM), a receptor antagonist for the progesterone receptor (PR) and glucocorticoid receptor (GR), and various concentrations of a synthetic progestogen nomegestrol acetate (NA; 0, 0.001, 0.01, 0.1, 1, 10 mM) to examine effect of P4. The effects of cortisol (0, 0.1, 1, 10 mM) were also examined in the presence or absence of trilostane. Trilostane and RU486 suppressed cumulus expansion, cortisol production, and HSD11B1 but not hexose-6-phosphate dehydrogenase (H6PDH) expression. Concomitant treatment with NA reversed the effects of trilostane. Unlike NA, cortisol did not alter the antagonistic effects of trilostane on cumulus expansion and HSD11B1 expression. Cortisol did not affect P4 production or steroidogenic acute regulatory protein (STAR), cholesterol side-chain cleavage enzyme (CYP11A1), 3β-hydroxysteroid dehydrogenase type 1 (HSD3B1), and HSD11B1 expression. Collectively, these results indicate that locally produced P4 is crucial in regulating the local glucocorticoid environment through PRtg in the maturing bovine cumulus oophorus. Cortisol, however, does not appear to regulate P4 or its production.
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Affiliation(s)
- Nobuhiro Anbo
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Akari Suzuki
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Memory Mukangwa
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Rio Takahashi
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Yuki Muranishi
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
| | - Masafumi Tetsuka
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan.
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Progestogen supplementation during superovulation leads to higher embryo viability and TGFB1 gene expression in sheep. Anim Reprod Sci 2022; 238:106938. [DOI: 10.1016/j.anireprosci.2022.106938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 12/15/2021] [Accepted: 01/30/2022] [Indexed: 11/22/2022]
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Jerez ERM, García AA, Caccia M, Rodríguez AC, Gonzales SJR, Waltero EMM, Marín DFD. Effect of the presence and location of corpus luteum on competence of bovine cumulus-oocyte complexes. Anim Reprod 2022; 19:e20210074. [PMID: 35571505 PMCID: PMC9083436 DOI: 10.1590/1984-3143-ar2021-0074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 03/31/2022] [Indexed: 11/21/2022] Open
Abstract
This study aimed to determine the effect of presence of the corpus luteum (CL) and its influence on cumulus–oocyte complexes (COCs) obtained from the ipsilateral or contralateral ovary in bovine on the recovery and capacity of the oocytes to sustain mono-spermic fertilization, undergo preimplantation development, and develop to the blastocyst stage. Ovaries were collected at a local slaughterhouse and kept in pairs corresponding to the same animal. In the first experiment the variables evaluated were compared between cows with (CCL+) and without (CCL-) CL, and for the second experiment, comparisons were made between ovaries with an ipsilateral (CL+), contralateral (CL−), and no (NCL). The recovery rate of COCs was higher in ovaries from CCL− cows, and a higher proportion of grade 1 COCs were recovered from this group. A higher proportion of metaphase I oocytes at 7 h of maturation, and a higher rate of cleavage were observed in the CCL+ group; however, a higher proportion of embryos were obtained from the CCL− group. Besides, COCs from the CL+ group had a lower proportion of grades 1 and 2 morphological qualities, lower rate of metaphase II oocytes at 22 h of maturation, and lower rate of formation of two pronuclei, whereas a higher proportion of unfertilized oocytes after in vitro fertilization. On the other hand, the COCs from the CL− group displayed a lower proportion of oocytes with more than two pronuclei, higher cleavage rate, and higher final blastocyst production were obtained when compared to CL+. Thus, the effects of CL on the competence of bovine COCs are different depending on the anatomical proximity of their location in the animal, negatively affecting the quality of COCs located in the same ovary, but not having negative effects on the competence of COCs in the ovaries contralateral to their location.
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16
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Network medicine for disease module identification and drug repurposing with the NeDRex platform. Nat Commun 2021; 12:6848. [PMID: 34824199 PMCID: PMC8617287 DOI: 10.1038/s41467-021-27138-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 11/04/2021] [Indexed: 12/17/2022] Open
Abstract
Traditional drug discovery faces a severe efficacy crisis. Repurposing of registered drugs provides an alternative with lower costs and faster drug development timelines. However, the data necessary for the identification of disease modules, i.e. pathways and sub-networks describing the mechanisms of complex diseases which contain potential drug targets, are scattered across independent databases. Moreover, existing studies are limited to predictions for specific diseases or non-translational algorithmic approaches. There is an unmet need for adaptable tools allowing biomedical researchers to employ network-based drug repurposing approaches for their individual use cases. We close this gap with NeDRex, an integrative and interactive platform for network-based drug repurposing and disease module discovery. NeDRex integrates ten different data sources covering genes, drugs, drug targets, disease annotations, and their relationships. NeDRex allows for constructing heterogeneous biological networks, mining them for disease modules, prioritizing drugs targeting disease mechanisms, and statistical validation. We demonstrate the utility of NeDRex in five specific use-cases.
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17
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Jiang X, Jiang S, Diao H, Deng K, Zhang C. Progestin-primed ovarian stimulation protocol with or without letrozole for patients with normal ovarian reserve: a retrospective cohort study. J Clin Pharm Ther 2021; 47:469-476. [PMID: 34796515 DOI: 10.1111/jcpt.13567] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 10/17/2021] [Accepted: 10/25/2021] [Indexed: 12/16/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE To compare the characteristics and efficacy of progestin-primed ovarian stimulation (PPOS) protocol plus letrozole versus PPOS protocol alone for patients with normal ovarian function who received in vitro fertilization/intracytoplasmic sperm injection-embryo transfer (IVF/ICSI-ET) assisted pregnancy treatment. METHODS From 1 October 2017 to 1 October 2019, 576 patients who underwent IVF/ICSI cycles received PPOS protocol with or without letrozole in the Center of Reproductive Medicine, Renmin Hospital of Shiyan City were included in this retrospective cohort study. The PPOS group included 249 patients who received PPOS protocol alone, and the combined treatment group included 327 patients who received PPOS protocol plus letrozole. The general data and laboratory indicators were detected and used as baseline data. In addition, evaluation of related indicators was performed, including days of gonadotropin (Gn) duration, total amount of dose of Gn and medroxyprogesterone acetate (MPA), hormone levels on the trigger day, number of oocytes retrieved and mature eggs, fertilization rate, cleavage rate, blastocyst formation rate, high-quality embryo rate, methods of endometrial preparation, stage of embryo transfer, endometrial thickness, the number of embryo transfer, biochemical pregnancy rate, clinical pregnancy rate, implantation rate, abortion rate, ectopic pregnancy rate and live birth rate. The risk factors affecting clinical pregnancy rate were detected by binary Logistic regression analysis. RESULTS AND DISCUSSION In this study, we found that baseline level of Anti-Müllerian hormone (AMH) was significantly higher in combined group compared with PPOS group (p < 0.05). The days of Gn duration in combined group were significantly longer than that in PPOS group (p < 0.05), and the total amount of dose of Gn and MPA in combined group was significantly less than that in PPOS group (p < 0.05). The levels of luteinizing hormone (LH) and progesterone in combined group were significantly higher than that in PPOS group on the trigger day (p < 0.05). The number of oocytes retrieved and mature eggs in combined group was significantly more than that in PPOS group (p < 0.05). Meanwhile, the fertilization rate, cleavage rate and blastocyst formation rate in combined group were significantly higher than that in PPOS group (p < 0.05). There was no significant difference in the characteristics of endometrial preparation and embryo transfer, as well as the pregnancy outcomes. The results of logistic regression analysis showed that stage (p < 0.001) (OR = 0.281, 95% CI: 0.187, 0.422) and number (p < 0.001) (OR = 0.333, 95% CI: 0.196, 0.567) of embryos transfer were risk factors for clinical pregnancy rate. WHAT IS NEW AND CONCLUSION Compared with PPOS protocol alone, letrozole combined with PPOS can achieve similar embryo and pregnancy outcomes while reducing the amount of Gn and MPA, which has a higher cost performance and is worth promoting. Stage and number of embryos transfer are risk factors for clinical pregnancy rate.
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Affiliation(s)
- Xing Jiang
- Reproductive Medicine Center, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,Hubei Clinical Research Center for Reproductive Medicine, Shiyan, China
| | - Shengfang Jiang
- Reproductive Medicine Center, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,Hubei Clinical Research Center for Reproductive Medicine, Shiyan, China
| | - Honglu Diao
- Reproductive Medicine Center, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,Hubei Clinical Research Center for Reproductive Medicine, Shiyan, China.,School of Biomedical Engineering, Hubei University of Medicine, Shiyan, China.,Biomedical Research Institute, Hubei University of Medicine, Shiyan, China.,Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Kai Deng
- Reproductive Medicine Center, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,Hubei Clinical Research Center for Reproductive Medicine, Shiyan, China.,School of Biomedical Engineering, Hubei University of Medicine, Shiyan, China.,Biomedical Research Institute, Hubei University of Medicine, Shiyan, China.,Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
| | - Changjun Zhang
- Reproductive Medicine Center, Renmin Hospital, Hubei University of Medicine, Shiyan, China.,Hubei Clinical Research Center for Reproductive Medicine, Shiyan, China.,School of Biomedical Engineering, Hubei University of Medicine, Shiyan, China.,Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan, China
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Etchevers L, Belotti EM, Díaz PU, Rodríguez FM, Rey F, Salvetti NR, Ortega HH, Amweg AN. MC2R/MRAP2 activation could affect bovine ovarian steroidogenesis potential after ACTH treatment. Theriogenology 2021; 174:102-113. [PMID: 34425302 DOI: 10.1016/j.theriogenology.2021.08.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/13/2021] [Accepted: 08/16/2021] [Indexed: 01/10/2023]
Abstract
Stressors activate the hypothalamic-pituitary-adrenal (HPA) axis, reducing fertility by interfering with the mechanisms that regulate the timing of events within the follicular phase of the estrous cycle. In the HPA axis, melanocortin 2 receptor (MC2R) mediates responses to adrenocorticotropic hormone (ACTH) in concert with melanocortin receptor accessory protein 2 (MRAP2). The aims of the present study were: (1) to evaluate the effects of ACTH administered in cows in the preovulatory period on the expression of the MC2R/MRAP2 complex in the dominant follicle; and (2) to analyze the involvement of Extracellular signal Regulated Kinase 1 (ERK1) signaling in the activation of MC2R and the expression of key enzymes involved in the biosynthesis of glucocorticoids (GCs) in the dominant follicle. To this end, 100 IU ACTH was administered to Holstein cows from a local dairy farm during pro-estrus every 12 h for four days until ovariectomy, which was performed before ovulation. Protein immunostaining of MC2R was higher in the dominant follicles of ACTH-treated cows (p < 0.05). Also, Western blot analysis showed higher activation of the ERK1 signaling pathway in ACTH-treated cows (p < 0.05). Finally, immunohistochemistry performed in the dominant follicles of ACTH-treated cows detected higher expression of CYP17A1 and CYP21A2 (p < 0.05). These results suggest that the bovine ovary is able to respond locally to ACTH as a consequence of stress altering the expression of relevant steroidogenic enzymes. The results also confirm that the complete GC biosynthesis pathway is present in bovine dominant follicle and therefore GCs could be produced locally.
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Affiliation(s)
- L Etchevers
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias Del Litoral (ICiVet-Litoral), Universidad Nacional Del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Esperanza, Santa Fe, Argentina
| | - E M Belotti
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias Del Litoral (ICiVet-Litoral), Universidad Nacional Del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional Del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - P U Díaz
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias Del Litoral (ICiVet-Litoral), Universidad Nacional Del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional Del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - F M Rodríguez
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias Del Litoral (ICiVet-Litoral), Universidad Nacional Del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional Del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - F Rey
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias Del Litoral (ICiVet-Litoral), Universidad Nacional Del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional Del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - N R Salvetti
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias Del Litoral (ICiVet-Litoral), Universidad Nacional Del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional Del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - H H Ortega
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias Del Litoral (ICiVet-Litoral), Universidad Nacional Del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional Del Litoral (UNL), Esperanza, Santa Fe, Argentina
| | - A N Amweg
- Laboratorio de Biología Celular y Molecular Aplicada, Instituto de Ciencias Veterinarias Del Litoral (ICiVet-Litoral), Universidad Nacional Del Litoral (UNL), Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Esperanza, Santa Fe, Argentina; Facultad de Ciencias Veterinarias, Universidad Nacional Del Litoral (UNL), Esperanza, Santa Fe, Argentina.
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A standardized extract of Asparagus officinalis stem improves HSP70-mediated redox balance and cell functions in bovine cumulus-granulosa cells. Sci Rep 2021; 11:18175. [PMID: 34518614 PMCID: PMC8437968 DOI: 10.1038/s41598-021-97632-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Accepted: 08/25/2021] [Indexed: 11/24/2022] Open
Abstract
Heat shock (HS) protein 70 (HSP70), a well-known HS-induced protein, acts as an intracellular chaperone to protect cells against stress conditions. Although HS induces HSP70 expression to confer stress resistance to cells, HS causes cell toxicity by increasing reactive oxygen species (ROS) levels. Recently, a standardized extract of Asparagus officinalis stem (EAS), produced from the byproduct of asparagus, has been shown to induce HSP70 expression without HS and regulate cellular redox balance in pheochromocytoma cells. However, the effects of EAS on reproductive cell function remain unknown. Here, we investigated the effect of EAS on HSP70 induction and oxidative redox balance in cultured bovine cumulus-granulosa (CG) cells. EAS significantly increased HSP70 expression; however, no effect was observed on HSP27 and HSP90 under non-HS conditions. EAS decreased ROS generation and DNA damage and increased glutathione (GSH) synthesis under both non-HS and HS conditions. Moreover, EAS synergistically increased HSP70 and HSF1 expression and increased progesterone levels in CG cells. Treatment with an HSP70 inhibitor significantly decreased GSH level, increased ROS level, and decreased HSF1, Nrf2, and Keap1 expression in the presence of EAS. Furthermore, EAS significantly increased progesterone synthesis. Thus, EAS improves HSP70-mediated redox balance and cell function in bovine CG cells.
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Bezerra FTG, Paulino LRFM, Silva BR, Silva AWB, Souza Batista ALP, Silva JRV. Effects of epidermal growth factor and progesterone on oocyte meiotic resumption and the expression of maturation-related transcripts during prematuration of oocytes from small and medium-sized bovine antral follicles. Reprod Fertil Dev 2021; 32:1190-1199. [PMID: 32943135 DOI: 10.1071/rd20099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 08/10/2020] [Indexed: 01/08/2023] Open
Abstract
This study evaluated the effects of epidermal growth factor (EGF) and progesterone (P4) on growth, the resumption of meiosis and expression of eukaryotic translation initiation factor 4E(eIF4E), poly(A)-specific ribonuclease (PARN), oocyte-specific histone H1 (H1FOO), oocyte maturation factor Mos (cMOS), growth differentiation factor-9 (GDF9) and cyclin B1 (CCNB1) mRNA in oocytes from small and medium-sized antral follicles after prematuration and maturation invitro. Oocytes from small (<2.0mm) and medium (3.0-6.0mm) antral follicles were cultured in medium containing EGF (10ng mL-1), P4 (100 µM) or both. After culture, growth rate, resumption of meiosis and eIF4E, PARN, H1FOO, cMOS, GDF9 and CCNB1 mRNA levels were evaluated. P4 increased cMOS, H1FOO and CCNB1 mRNA levels after the culture of oocytes from small antral follicles, and EGF increased CCNB1 mRNA levels in these oocytes. In the medium-sized antral follicles, P4 alone or in combination with EGF increased oocyte diameter after prematuration invitro. In these oocytes, the presence of either EGF or P4 in the culture medium increased cMOS mRNA levels. In conclusion, P4 increases cMOS, H1FOO and CCNB1 mRNA levels after the culture of oocytes from small antral follicles. P4 and the combination of EGF and P4 promote the growth of oocytes from medium-sized antral follicles, and both EGF and P4 increase cMOS mRNA levels.
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Affiliation(s)
- Francisco Taiã G Bezerra
- Laboratory of Biotechnology and Physiology of Reproduction, Federal University of Ceara, Sobral-CE, Brazil
| | - Laís R F M Paulino
- Laboratory of Biotechnology and Physiology of Reproduction, Federal University of Ceara, Sobral-CE, Brazil
| | - Bianca R Silva
- Laboratory of Biotechnology and Physiology of Reproduction, Federal University of Ceara, Sobral-CE, Brazil
| | - Anderson W B Silva
- Laboratory of Biotechnology and Physiology of Reproduction, Federal University of Ceara, Sobral-CE, Brazil
| | - Ana L P Souza Batista
- Laboratory of Biotechnology and Physiology of Reproduction, Federal University of Ceara, Sobral-CE, Brazil
| | - José R V Silva
- Laboratory of Biotechnology and Physiology of Reproduction, Federal University of Ceara, Sobral-CE, Brazil; and Corresponding author.
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Pardiñas ML, Nohales M, Labarta E, De los Santos JM, Mercader A, Remohí J, Bosch E, De los Santos MJ. Elevated serum progesterone does not impact euploidy rates in PGT-A patients. J Assist Reprod Genet 2021; 38:1819-1826. [PMID: 34008094 PMCID: PMC8324650 DOI: 10.1007/s10815-021-02197-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 04/18/2021] [Indexed: 01/29/2023] Open
Abstract
PURPOSE Some women undergoing stimulated cycles have elevated serum progesterone (P) on the day of ovulation trigger, but its effect on embryo quality is unclear. We analyze embryo quality among patients with high and low serum P undergoing preimplantation genetic testing for aneuploidy (PGT-A). METHODS This retrospective study included 1597 patients divided into two groups by serum P values: < 1.5 ng/mL or ≥ 1.5 ng/mL. A gonadotrophin-releasing hormone (GnRH) antagonist protocol was established for each patient. Serum P levels were measured on the day of triggering. Propensity score matching and Poisson regression were done. Age, body mass index, and ovarian sensitivity index were also compared. RESULTS Elevated serum P was not significantly associated with euploid embryo rate or other embryo-quality variables evaluated in our study. Age was the only variable associated with euploidy rate (per MII oocyte, P < 0.001; per biopsied embryo, P = 0.008), embryo biopsy rate (P < 0.001), absolute number of euploid embryos (P = 0.008), and top-quality embryo rate (P = 0.008). Categorical variables decreased in value for every year of increased age in patients with high serum P. CONCLUSIONS Elevated serum P did not affect the number of euploid and good-quality embryos for transfer in GnRH antagonist intracytoplasmic sperm injection (ICSI) cycles. Contrary to the clear influence of premature P elevation on endometrial receptivity based on literature, our results may help to tip the balance towards the absence of a negative effect of P elevation on embryo competence. More studies are needed to fully understand the effect of P elevation on reproductive outcomes.
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Affiliation(s)
| | - Mar Nohales
- Instituto Valenciano de Infertilidad, IVI RMA, Valencia, Spain
| | - Elena Labarta
- Instituto Valenciano de Infertilidad, IVI RMA, Valencia, Spain
- Fundación IVI, Biopolo, Iis Hospital la Le, Valencia, Spain
| | | | - Amparo Mercader
- Instituto Valenciano de Infertilidad, IVI RMA, Valencia, Spain
- Fundación IVI, Biopolo, Iis Hospital la Le, Valencia, Spain
| | - José Remohí
- Instituto Valenciano de Infertilidad, IVI RMA, Valencia, Spain
- Fundación IVI, Biopolo, Iis Hospital la Le, Valencia, Spain
| | - Ernesto Bosch
- Instituto Valenciano de Infertilidad, IVI RMA, Valencia, Spain
- Fundación IVI, Biopolo, Iis Hospital la Le, Valencia, Spain
| | - Maria José De los Santos
- Instituto Valenciano de Infertilidad, IVI RMA, Valencia, Spain
- Fundación IVI, Biopolo, Iis Hospital la Le, Valencia, Spain
- OB/GYN Department, University of Valencia, Valencia, Spain
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22
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da Silva JCB, Alves MBR, Bridi A, Bohrer RC, Escobar GSL, de Carvalho JABA, Binotti WAB, Pugliesi G, Lemes KM, Chello D, Perecin F. Reproductive seasonality influences oocyte retrieval and embryonic competence but not uterine receptivity in buffaloes. Theriogenology 2021; 170:77-84. [PMID: 34000520 DOI: 10.1016/j.theriogenology.2021.04.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 04/30/2021] [Accepted: 04/30/2021] [Indexed: 11/29/2022]
Abstract
Since buffaloes are a seasonal, polyestrous species, optimizing reproduction during the non-breeding season is a key factor in increasing the reproductive and productive efficiency of herds. Ovum pick-up associated with in vitro embryo production and embryo cryopreservation is an alternative to reduce seasonal impacts. We studied the effects of seasonality in buffalo oocyte donors and embryo recipients during the favorable and non-favorable breeding seasons. Donors were evaluated for oocyte recovery and blastocyst production rate as dFBS (donors in favorable breeding season) or dNBS (donors in non-favorable breeding season). Embryos produced from dFBS or dNBS were cryopreserved by vitrification or the slow-freeze method for direct transfer and transferred to recipients in the favorable (rFBS) or non-favorable breeding season (rNBS). The heifers or cows were subjected to a fixed-time embryo transfer protocol and conception rates were determined on day 30 and on day 60. The oocyte recovery was lower in dFBS than in dNBS (7.6 vs. 10.0 oocyte/OPU, p = 0.0262); while no difference was found comparing blastocyst production rate (23.7% vs. 30.9% of blastocysts, respectively). Embryos from dFBS resulted in greater (p = 0.0013) conception rates on day 30 compared to dNBS (46.5% vs. 22.4%, respectively), despite the breeding season. The rFBS and rNBS treatments had similar (p = 0.6714) conception rates on day 30 (38.0% vs. 33.0%, respectively), indicating similar uterine receptivity. However, heifers on FBS had higher (p = 0.0003) conception rates on day 30 than cows (73.9% vs. 13.3%, respectively) when receiving embryos from dFBS. Vitrification and direct transfer had similar (p = 0.1698) conception rates on day 30 (30.4% vs. 41.4%, respectively). In conclusion, in vitro-produced embryos derived from dFBS were more competent in establishing pregnancy than dNBS counterparts, independent of recipients' reproductive seasonality. Heifers achieved better conception rates than cows during the favorable breeding season when the embryo came from dFBS. Cryopreserved in vitro produced embryos represent a reliable alternative to reduce seasonal variations in buffalo reproduction. The data elucidate the seasonal effects on embryo competence and on recipients' uterine receptivity, affording new strategies to implement ovum pick-up associated with in vitro embryo production programs in buffalo herds.
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Affiliation(s)
- Júlio César Barboza da Silva
- FZEA/USP - Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
| | - Maíra Bianchi Rodrigues Alves
- FZEA/USP - Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
| | - Alessandra Bridi
- FZEA/USP - Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil
| | | | | | | | | | - Guilherme Pugliesi
- FMVZ/USP - Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil São Paulo, Brazil
| | | | - Damiana Chello
- FMVZ/USP - Department of Animal Reproduction, Faculty of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil São Paulo, Brazil
| | - Felipe Perecin
- FZEA/USP - Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, São Paulo, Brazil.
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23
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Contreras-Solís I, Catalá M, Soto-Heras S, Roura M, Paramio MT, Izquierdo D. Effect of follicle size on hormonal status of follicular fluid, oocyte ATP content, and in vitro embryo production in prepubertal sheep. Domest Anim Endocrinol 2021; 75:106582. [PMID: 33238222 DOI: 10.1016/j.domaniend.2020.106582] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 10/28/2020] [Accepted: 10/28/2020] [Indexed: 11/16/2022]
Abstract
The aim of this study was to assess the effect of follicular size on estradiol (E2) and progesterone (P4) levels in intrafollicular fluid, ATP content in oocytes, and the embryo development rate in prepubertal sheep. Slaughterhouse ovaries were dissected to recover the follicles, which were classified according to the follicle diameter as <3 mm (n = 20) and ≥3 mm (n = 17). Then, follicular fluid was obtained and analyzed by radioimmunoassay to determine the E2 and P4 concentrations. Another group of ovaries was used to recover cumulus-oocyte complexes according to follicle size. In vitro maturation (IVM), in vitro fertilization (IVF), and embryo culture were performed using standard procedures, and ATP level was assessed at 0 and 24 h of IVM. Intrafollicular concentrations of E2 and P4 and E2:P4 ratio were higher in ≥3 mm (18.7 ± 5.9 ng/mL, 7.8 ± 1.2 ng/mL, and 3.6 ± 1.3, respectively) than <3 mm (1.8 ± 0.4 ng/mL, 2.6 ± 0.3 ng/mL and 0.9 ± 0.3, respectively) follicles. The rate of ATP increased during IVM and was higher in oocytes from ≥3 mm than <3 mm (22.4 ± 0.7 and 8.6 ± 2.2-fold change; respectively) follicles. After IVF, the blastocyst development was higher in oocytes recovered from ≥3 mm (11.1 ± 0.9%) than from <3 mm (6.5 ± 0.7%) follicles. These results indicate an improvement in the competence and development of oocytes from ≥3 mm follicles with a higher E2:P4 ratio. Thus, this ratio could be used as reference to design IVM medium and to enhance the in vitro embryo production in lambs.
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Affiliation(s)
- I Contreras-Solís
- Department of Veterinary Medicine, Sassary University, Sardinia, Italy
| | - M Catalá
- Departament de Ciència Animal i dels Aliments, Facultad De Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - S Soto-Heras
- Departament de Ciència Animal i dels Aliments, Facultad De Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Roura
- Departament de Ciència Animal i dels Aliments, Facultad De Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M T Paramio
- Departament de Ciència Animal i dels Aliments, Facultad De Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - D Izquierdo
- Departament de Ciència Animal i dels Aliments, Facultad De Veterinària, Universitat Autònoma de Barcelona, Barcelona, Spain.
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24
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Comparison of two intravaginal progesterone-releasing devices in shortened-timed artificial insemination protocols in beef cattle. Theriogenology 2021; 168:75-82. [PMID: 33862427 DOI: 10.1016/j.theriogenology.2021.03.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 02/23/2021] [Accepted: 03/27/2021] [Indexed: 11/23/2022]
Abstract
Commercially available intravaginal progesterone (P4) devices differ in shape, surface area and P4 load, which may affect the resulting pregnancy per AI (P/AI) following timed-AI (TAI). The objective of this study was to compare two intravaginal P4 devices on estrus rate, follicular dynamics and P/AI in beef cattle subjected to shortened-TAI protocols. In Expt. 1, nulliparous heifers were randomly assigned to a P4-releasing intravaginal device (PRID-Delta, 1.55 g P4) or a controlled internal drug release (CIDR, 1.38 g P4) at the initiation of a J-synch protocol. Heifers that displayed estrus 72 h following device removal were TAI, or if not in estrus given GnRH at 72 h and TAI at 90 h. In Expt. 2, nulliparous heifers and non-suckling cows were randomly assigned to either PRID or CIDR groups and either 1 or 2 mg of estradiol benzoate (EB) at initiation of a J-synch protocol. All cattle were TAI concurrent with GnRH 72 h after device removal. In Expt. 3, nulliparous heifers and suckling cows were randomly assigned to either PRID or CIDR groups and initiated a 5-d Cosynch protocol, with TAI concurrent with GnRH 72 h following device removal. In each experiment, cattle received estrus detection patches at device removal, which were then scored from 0 to 3 based on color change between initial application and TAI; 0 = unchanged, 1 = ≤50% change, 2 = >50% change, 3 = missing. Estrus was defined to have occurred when the patch was scored 2 or 3. Transrectal ultrasonography was used to determine cyclicity, diagnose pregnancy in all experiments, and the size of the ovulatory follicle in Expt. 3. In Expt. 1, the estrus rate was greater (72.0% vs. 61.0%; P = 0.04) in the PRID compared to the CIDR group. In Expt. 2, a parity by EB dose interaction (P = 0.02) was attributed to an increased estrus rate (52.8% vs. 41.4%; P = 0.05) in heifers given 1 vs. 2 mg EB. In Expt. 3, there was no difference in the ovulatory follicle diameter at device removal (P = 0.22) or TAI (P = 0.28) between P4 groups. Treatment with a PRID tended (P = 0.10) to increase the P/AI in cows compared to a CIDR (73.5% vs. 61.0%). In all experiments combined, the overall P/AI tended to increase (55.2% vs. 51.0%; P = 0.08) and P/AI in cattle exhibiting estrus increased (64.4% vs. 59.7%; P = 0.02) in cattle given a PRID compared to those given a CIDR, respectively. In summary, the type of intravaginal P4 device affected estrus response and P/AI following TAI in beef cows.
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Blaschka C, Diers S, Aravina M, Geisler S, Schuler G, Tetens J. Evaluation of a small volume oil-free in vitro production system for bovine embryos. Vet Med Sci 2021; 7:868-875. [PMID: 33502126 PMCID: PMC8136954 DOI: 10.1002/vms3.428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 12/16/2020] [Accepted: 01/04/2021] [Indexed: 02/01/2023] Open
Abstract
Background: Embryos are usually produced in culture systems with an oil overlay, which conveys protection against the evaporation of water and microbial contamination. The oil can also release toxic substances and absorb essential components, such as hormones, which adversely affect the quality of the oocytes and the development of embryos in vitro. Objective: The aim of this study was to validate an oil‐free bovine in vitro production (IVP) system. Method: Cumulus–oocyte complexes collected from abattoir‐derived ovaries were matured, fertilized and cultured employing a standard system. The quantity of medium in both groups (with and without an oil overlay) and throughout all stages of IVP was maintained at a volume of 100 μl. The oil group was covered with paraffin oil. The maturation stage of oocytes was assessed using fluorescence staining after 24 hr and developmental stages of embryos were evaluated on day 8. The expanded day 8 blastocysts were assessed by live–dead staining. Results: Oocytes matured in the absence of an oil overlay had significantly higher maturation rates when compared against matured oocytes in medium with an oil overlay. Steroid concentration is higher in medium after maturation without oil cover. The developmental rate was significantly higher after culture without oil overlay. The total cell number and the live–dead ratio was not significantly different. The osmolality did not differ between both groups during maturation and slightly decreased during culture without oil. Conclusion: Based on the current study, bovine oil‐free IVP systems can be suggested as an alternative to oil‐covered medium.
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Affiliation(s)
- Carina Blaschka
- Division of Biotechnology and Livestock Reproduction, Department of Animal Sciences, Georg-August-University, Goettingen, Germany
| | - Sophie Diers
- Division of Biotechnology and Livestock Reproduction, Department of Animal Sciences, Georg-August-University, Goettingen, Germany
| | - Mariya Aravina
- Division of Biotechnology and Livestock Reproduction, Department of Animal Sciences, Georg-August-University, Goettingen, Germany
| | - Swantje Geisler
- Division of Biotechnology and Livestock Reproduction, Department of Animal Sciences, Georg-August-University, Goettingen, Germany
| | - Gerhard Schuler
- Clinic for Veterinary Obstetrics, Gynecology and Andrology, Molecular Reproductive Medicine, Justus-Liebig-University, Giessen, Germany
| | - Jens Tetens
- Division of Biotechnology and Livestock Reproduction, Department of Animal Sciences, Georg-August-University, Goettingen, Germany
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26
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Husnurrizal H, Siregar TN, Gholib G, Panjaitan B, Armansyah T, Wahyuni S. Profiles of progesterone and bovine interferon-τ in repeat breeding and non-repeat breeding Aceh cows. Vet World 2021; 14:230-236. [PMID: 33642808 PMCID: PMC7896903 DOI: 10.14202/vetworld.2021.230-236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/14/2020] [Indexed: 11/25/2022] Open
Abstract
AIM This study aimed at determining the profiles of progesterone and bovine interferon-τ (bIFN-τ) and the correlation between the two in repeat breeding (RB) Aceh cattle and non-RB Aceh cattle. MATERIALS AND METHODS The study was performed on five RB and five non-RB Aceh cows. These cows were subjected to estrous synchronization using the prostaglandin F2 alpha hormone, which was followed by artificial insemination (AI). Serum samples were collected on days 5, 6, 7, 15, 16, and 17 after AI to measure the concentration of progesterone at the beginning and end of the luteal phase and from days 14 to 18 after AI to measure the concentration of bIFN-τ. The concentrations of progesterone and bIFN-τ were determined using enzyme-linked immunosorbent assay. Pregnancy examinations were performed by ultrasonography on days 25, 35, 45, and 55 after AI. Data for progesterone and bIFN-τ concentrations were analyzed using the Mann-Whitney and t-tests, and the correlation between progesterone and bIFN-τ was analyzed using the Spearman correlation test. RESULTS The average concentration of progesterone in RB Aceh cows tended to be lower than non-RB Aceh cows, but it was not significantly different (p>0.05). Similar results also found in the concentration of bIFN-τ which RB Aceh cows tended to have lower bIFN-τ concentrations compared to non-RB Aceh cows, but it was also not significantly different (p>0.05). Moreover, the concentrations of progesterone and bIFN-τ in RB and non-RB Aceh cows did not show a significant correlation (p>0.05). These results of the ultrasonography showed that non-RB Aceh cows were pregnant from day 25 to day 55 after AI, whereas RB Aceh cows were not pregnant and had early embryonic death. CONCLUSION The concentrations of progesterone and bIFN-τ in non-RB Aceh cows tended to be higher than those in RB Aceh cows, although, it was not significantly different. Non-RB Aceh cows were able to maintain pregnancy until day 55, whereas RB Aceh cows were diagnosed with early embryonic death before day 25 after AI.
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Affiliation(s)
- Husnurrizal Husnurrizal
- Laboratory of Reproduction, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Tongku Nizwan Siregar
- Laboratory of Reproduction, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Gholib Gholib
- Laboratory of Physiology, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Budianto Panjaitan
- Laboratory of Clinic, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Teuku Armansyah
- Laboratory of Pharmacology, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
| | - Sri Wahyuni
- Laboratory of Anatomy, Faculty of Veterinary Medicine, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
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Genome-Wide Association Study and Pathway Analysis for Female Fertility Traits in Iranian Holstein Cattle. ANNALS OF ANIMAL SCIENCE 2020. [DOI: 10.2478/aoas-2020-0031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Abstract
Female fertility is an important trait that contributes to cow’s profitability and it can be improved by genomic information. The objective of this study was to detect genomic regions and variants affecting fertility traits in Iranian Holstein cattle. A data set comprised of female fertility records and 3,452,730 pedigree information from Iranian Holstein cattle were used to predict the breeding values, which were then employed to estimate the de-regressed proofs (DRP) of genotyped animals. A total of 878 animals with DRP records and 54k SNP markers were utilized in the genome-wide association study (GWAS). The GWAS was performed using a linear regression model with SNP genotype as a linear covariate. The results showed that an SNP on BTA19, ARS-BFGL-NGS-33473, was the most significant SNP associated with days from calving to first service. In total, [69] significant SNPs were located within 27 candidate genes. Novel potential candidate genes include OSTN, DPP6, EphA5, CADPS2, Rfc1, ADGRB3, Myo3a, C10H14orf93, KIAA1217, RBPJL, SLC18A2, GARNL3, NCALD, ASPH, ASIC2, OR3A1, CHRNB4, CACNA2D2, DLGAP1, GRIN2A and ME3. These genes are involved in different pathways relevant to female fertility and other characteristics in mammals. Gene set enrichment analysis showed that thirteen GO terms had significant overrepresentation of genes statistically associated with female fertility traits. The results of network analysis identified CCNB1 gene as a hub gene in the progesterone-mediated oocyte maturation pathway, significantly associated with age at first calving. The candidate genes identified in this study can be utilized in genomic tests to improve reproductive performance in Holstein cattle.
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Argudo DE, Tenemaza MA, Merchán SL, Balvoa JA, Méndez MS, Soria ME, Galarza LR, Ayala LE, Hernández-Fonseca HJ, Perea MS, Perea FP. Intraovarian influence of bovine corpus luteum on oocyte morphometry and developmental competence, embryo production and cryotolerance. Theriogenology 2020; 155:232-239. [PMID: 32758994 DOI: 10.1016/j.theriogenology.2020.05.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 04/28/2020] [Accepted: 05/30/2020] [Indexed: 12/25/2022]
Abstract
Three experiments were conducted to determine influence of the bovine corpus luteum (CL) on morphometric and functional characteristics of oocytes, and subsequent embryonic development. Cumulus-oocyte complexes were aspirated from two types of cows: 1) with a CL in one ovary (CL+) and without a CL in the contralateral ovary (CL-), 2) and from cows without CL in either ovary (C). Intracellular activity of the enzyme glucose-6-phosphate dehydrogenase (G6PDH), oocyte diameter and thickness of the zona pellucida were determined (Experiment 1). Then, the rate of in vitro oocyte maturation for each ovarian category was evaluated and oocyte diameter and zona pellucida thickness were measured after maturation (Experiment 2). In Experiment 3, in vitro embryo production and cryotolerance were assessed. The oocyte diameter was greater (P < 0.01) and the zona pellucida was thinner in CL+ than in CL- (P > 0.05) or C (P = 0.0131) ovaries. Activity of G6PDH was lower in oocytes from CL+ than CL- (P < 0.01) and C (P = 0.0148) ovaries. Rate of oocyte maturation, oocyte diameter and thickness of the zona pellucida after maturation did not differ among groups. Rate of cleavage was greater in zygotes from CL+ than from CL- or C (P < 0.01); and CL+ ovaries produced more total embryos on day 7 (P < 0.05) and more blastocysts (P < 0.01) than CL- and C ovaries. Rate of expansion and hatching of day-7 vitrified-warmed blastocysts at 24 and 48 h of culture did not differ among groups. In conclusion, oocytes collected from CL+ ovaries were larger and metabolically more prepared to continue maturation than those from ovaries lacking a CL. Also, rates of cleavage and yield of blastocysts were greater for oocytes from CL+ ovaries than from CL- and C ovaries. These findings indicate that a CL influenced oocyte developmental competence and embryonic development, presumably through intraovarian interactions.
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Affiliation(s)
- Daniel E Argudo
- Unidad Académica de Ciencias Agropecuarias, Universidad Católica de Cuenca, Ecuador
| | - Milton A Tenemaza
- Laboratorio de Biotecnologías de la Reproducción Animal, Facultad de Ciencias Agropecuarias. Universidad de Cuenca, Ecuador
| | - Shirley L Merchán
- Laboratorio de Biotecnologías de la Reproducción Animal, Facultad de Ciencias Agropecuarias. Universidad de Cuenca, Ecuador
| | - José A Balvoa
- Laboratorio de Biotecnologías de la Reproducción Animal, Facultad de Ciencias Agropecuarias. Universidad de Cuenca, Ecuador
| | - Maria S Méndez
- Laboratorio de Biotecnologías de la Reproducción Animal, Facultad de Ciencias Agropecuarias. Universidad de Cuenca, Ecuador
| | - Manuel E Soria
- Laboratorio de Biotecnologías de la Reproducción Animal, Facultad de Ciencias Agropecuarias. Universidad de Cuenca, Ecuador
| | - Luis R Galarza
- Laboratorio de Biotecnologías de la Reproducción Animal, Facultad de Ciencias Agropecuarias. Universidad de Cuenca, Ecuador
| | - Luis E Ayala
- Laboratorio de Biotecnologías de la Reproducción Animal, Facultad de Ciencias Agropecuarias. Universidad de Cuenca, Ecuador
| | | | - Mariana S Perea
- Facultad de Ciencias Veterinarias, Universidad del Zulia, Venezuela
| | - Fernando P Perea
- Departamento de Ciencias Agrarias, Universidad de Los Andes, Trujillo, Venezuela.
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Dubeibe DF, Caldas-Bussiere MC, Maciel VL, Sampaio W, Gonçalves PBD, De Cesaro MP, Quirino CR, Faes MR, Paes de Carvalho CS. Partial inhibition of nitric oxide synthase activity stimulates the nuclear maturation progression of bovine cumulus-oocyte complex in vitro in the presence of hemisections of the follicular walls. ZYGOTE 2020; 28:1-9. [PMID: 32408924 DOI: 10.1017/s0967199420000234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This study aimed to assess the effects of the inhibition of nitric oxide synthase (NOS) on events that modulate bovine in vitro oocyte maturation. Cumulus-oocyte complexes (COCs) were cultured with hemisections (HSs) of the follicular walls in a maturation medium supplemented with different concentrations (0.1-10.0 mM) of Nω-nitro-l-arginine methyl ester hydrochloride (l-NAME). Controls consisted of COCs cultured in the presence (+HSs) or absence of HSs (-HSs) with no additional l-NAME supplementation. The following parameters were assessed: oocyte nuclear maturation stage; cumulus cell (CC) membrane integrity; nitrate/nitrite, progesterone, and estradiol concentrations in the culture medium at 22 h of cultivation; and the concentrations of cGMP and cAMP in COCs during the first hour of maturation. The addition of 1.0 mM l-NAME increased the percentage of oocytes that reached metaphase II (MII) and the percentage of intact CCs (P < 0.05). All l-NAME concentrations reduced the nitrate/nitrite concentrations (P < 0.05), but none affected steroid concentrations compared with control +HSs (P > 0.05). The addition of 1.0 mM l-NAME reduced cGMP concentrations at 3 h and increased cAMP concentrations in the first hour of culture (P < 0.05). Our findings suggest that the NOS/NO/cGMP pathway participates in meiosis progression (MI to MII) of the bovine oocytes matured in vitro in the presence of hemisections of the follicular walls. Lastly, the mechanisms that lead to the progression of meiosis after NOS inhibition do not involve changes in steroid production.
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Affiliation(s)
- Diego Fernando Dubeibe
- Laboratório de Reprodução e Melhoramento Genético Animal, Centro de Ciências e Tecnologias Agropecuárias, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro - RJ, Cep 28013-602, Brazil
| | - Maria Clara Caldas-Bussiere
- Laboratório de Reprodução e Melhoramento Genético Animal, Centro de Ciências e Tecnologias Agropecuárias, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro - RJ, Cep 28013-602, Brazil
| | - Valter Luiz Maciel
- Laboratório de Reprodução e Melhoramento Genético Animal, Centro de Ciências e Tecnologias Agropecuárias, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro - RJ, Cep 28013-602, Brazil
| | - Wlaisa Sampaio
- Laboratório de Reprodução e Melhoramento Genético Animal, Centro de Ciências e Tecnologias Agropecuárias, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro - RJ, Cep 28013-602, Brazil
| | - Paulo B D Gonçalves
- Laboratório de Biotecnologia e Reprodução Animal, Universidade Federal de Santa Maria - UFSM, Santa Maria, Rio Grande do Sul-RS, Cep 97105-900, Brazil
| | - Matheus P De Cesaro
- Laboratório de Biotecnologia e Reprodução Animal, Universidade Federal de Santa Maria - UFSM, Santa Maria, Rio Grande do Sul-RS, Cep 97105-900, Brazil
| | - Celia Raquel Quirino
- Laboratório de Reprodução e Melhoramento Genético Animal, Centro de Ciências e Tecnologias Agropecuárias, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro - RJ, Cep 28013-602, Brazil
| | - Márcia R Faes
- Laboratório de Reprodução e Melhoramento Genético Animal, Centro de Ciências e Tecnologias Agropecuárias, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro - RJ, Cep 28013-602, Brazil
| | - Carla S Paes de Carvalho
- Laboratório de Reprodução e Melhoramento Genético Animal, Centro de Ciências e Tecnologias Agropecuárias, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Avenida Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, Rio de Janeiro - RJ, Cep 28013-602, Brazil
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Cho MH, Kim SH, Lee DK, Lee M, Lee CK. Progesterone receptor membrane component 1 (PGRMC1)-mediated progesterone effect on preimplantation development of in vitro produced porcine embryos. Theriogenology 2020; 147:39-49. [PMID: 32086050 DOI: 10.1016/j.theriogenology.2020.02.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Revised: 02/06/2020] [Accepted: 02/08/2020] [Indexed: 01/10/2023]
Abstract
Progesterone is a steroid hormone well known for its significant role in the reproduction process of mammals. Numerous studies have reported on the regulation of progesterone during implantation, pregnancy and parturition, but there are fewer studies on progesterone in relation to the early stages of embryo development. In the present study, we investigated the effects of progesterone during the development of in vitro produced porcine embryos. First, gene expression of various progesterone receptors in the in vitro produced porcine embryos were analyzed. PGRMC1 and PGRMC2 (progesterone receptor membrane component 1 and 2) showed distinct expression. Next, the embryos were treated with two concentrations of progesterone (10 nM and 100 nM) for two different durations (from day 0 and from day 4) to compare the developmental rates, cell numbers, and apoptosis rates of day 7 blastocysts. The experimental groups in both durations showed similarly increased blastocyst cell numbers and decreased apoptosis rates when treated with 100 nM progesterone. Furthermore, the expression levels of PGRMC1, PGRMC2, PAIRBP1 (plasminogen activator inhibitor RNA-binding protein 1), and apoptosis-related genes were examined in blastocysts and showed significant increases in the 100 nM treatment group compared to the control group. Subsequently, the embryos were treated with the PGRMC1 inhibitor, AG-205, and developmental rates, cell numbers, and apoptosis rates of day 7 blastocysts were compared. In addition, 100 nM progesterone was treated simultaneously with AG-205 to test if the inhibition effect is relieved by progesterone. Groups treated with 1 μM and 2 μM AG-205 showed decreased cell numbers and increased apoptosis rates in day 7 blastocysts compared to the control group. We also confirmed the recovery of inhibition by 100 nM progesterone. In conclusion, the present study indicated that progesterone positively affects the development of in vitro produced preimplantation porcine embryos by increasing cell proliferation and decreasing apoptosis via PGRMC1-involved actions. However, the detailed mechanisms of PGRMC1 need further elucidation.
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Affiliation(s)
- Man Ho Cho
- Department of Agricultural Biotechnology, Animal Biotechnology Major, Research Institute of Agriculture and Life Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Seung-Hun Kim
- Department of Agricultural Biotechnology, Animal Biotechnology Major, Research Institute of Agriculture and Life Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Dong-Kyung Lee
- Department of Agricultural Biotechnology, Animal Biotechnology Major, Research Institute of Agriculture and Life Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Mingyun Lee
- Department of Agricultural Biotechnology, Animal Biotechnology Major, Research Institute of Agriculture and Life Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Chang-Kyu Lee
- Department of Agricultural Biotechnology, Animal Biotechnology Major, Research Institute of Agriculture and Life Science, Seoul National University, Seoul, 08826, Republic of Korea; Designed Animal & Transplantation Research Institute, Institute of Green Bio Science and Technology, Seoul National University, Gangwon-do, 25354, Republic of Korea.
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Hepatic mRNA expression of enzymes associated with progesterone metabolism and its impact on ovarian and endocrine responses in Nelore (Bos indicus) and Holstein (Bos taurus) heifers with differing feed intakes. Theriogenology 2019; 143:113-122. [PMID: 31869732 DOI: 10.1016/j.theriogenology.2019.11.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 11/26/2019] [Accepted: 11/28/2019] [Indexed: 12/18/2022]
Abstract
The aim of this study was to evaluate circulating progesterone concentration (P4), LH pulsatility and ovarian follicular dynamics in Nelore (B. indicus) and Holstein (B. taurus) heifers under high (HDMI) and low (LDMI) dry matter/energy intakes. In addition, the effects of dry matter/energy intake and breed on hepatic expression of six genes associated with P4 metabolism (AKR1C4, AKR1D1, CYP3A4, CYP2C19, SRD5A1, and SRD5A3) was evaluated. Heifers received an intravaginal P4 device (1 g), 2 mg of estradiol benzoate (EB) i.m. and 500 μg of PGF2α at the begging of the synchronization protocol (D0). Eight days later, the P4 device was removed and all heifers received 1 mg of EB 24h later. Regardless of dry matter/energy intake, the number of recruited follicles was greater in Nelore than in Holstein heifers. In contrast, the maximum diameter of the dominant follicle was greater in Holstein than in Nelore heifers. Circulating P4 concentrations were greater in Nelore than in Holstein from D2 to D9, and in heifers receiving LDMI than those receiving HDMI from D1 to D8 of hormonal protocol. In addition, Holstein heifers had greater LH pulsatility and area under the curve of LH peaks compared to Nelore heifers. However, no effects were observed for LH values between feed intake levels. Interestingly, Holstein heifers had higher expression of SRD5A1, AKR1C4, AKR1D1 than Nelore heifers; whereas, for Nelore heifers, only the expression of CYP3A4 was higher compared to Holstein heifers. In conclusion, there are important differences in the follicular dynamics, circulating P4 and LH pulsatility concentrations that need to be considered during synchronization protocols for Nelore and Holstein breeds. More importantly, these differences appear to be at least partially modulated by the level of feed intake and the contrasting enzyme system in the liver involved with P4 metabolism between these cattle breeds.
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Peng Q, Cao X, Wang J, Wang L, Xu J, Ji X, Liu S, Zhu J, Dong X. Progestin-primed ovarian stimulation vs mild stimulation in women with advanced age above 40: a retrospective cohort study. Reprod Biol Endocrinol 2019; 17:91. [PMID: 31706340 PMCID: PMC6842539 DOI: 10.1186/s12958-019-0518-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 08/27/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Previous studies have demonstrated that progestin-primed ovarian stimulation (PPOS) protocol was a feasible and efficient method in in vitro fertilization (IVF) cycle. However, its application in women with advanced age has not been determined yet. The purpose of this study was to investigate its efficacy in women aged ≥40 years old. METHODS This retrospective cohort study included patients with ages of ≥40 years old at the time of ovarian stimulation. The embryonic and clinical outcome of mild stimulation and PPOS were compared. Primary outcome was top-quality embryo rate on day 3, and secondary outcome was clinical pregnancy rate. RESULTS Baseline characteristics of patients was similar in mild stimulation (122 cycles) and PPOS (47 cycles). No significant difference was found in the number of retrieved and mature oocytes and the fertilization and cleavage rates. Of interest, the rate of top-quality embryos was significantly higher in PPOS group (50.08% vs 33.29%, p = 0.015), with an increasing trend of viable embryo rate (73.55% vs 61.16%). A greater amount of gonadotropin was observed in PPOS group (2061.17 ± 1254.63 IU vs 1518.14 ± 547.25 IU, p < 0.05) in spite of comparable duration of stimulation. After FET cycle, no significant difference was found in the clinical pregnancy rates between mild stimulation (12.5%) and PPOS group (16.7%). CONCLUSIONS Higher percentage of top-quality embryos on Day 3 and comparable clinical pregnancy rate was obtained in PPOS protocol, which could be considered as a feasible ovarian stimulation protocol in women aged above 40 years old.
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Affiliation(s)
- Qian Peng
- Reproductive medicine centre, Zhongshan hospital, Fudan University, Shanghai, China
| | - Xiang Cao
- Reproductive medicine centre, Zhongshan hospital, Fudan University, Shanghai, China
| | - Jing Wang
- Reproductive medicine centre, Zhongshan hospital, Fudan University, Shanghai, China
| | - Lin Wang
- Reproductive medicine centre, Zhongshan hospital, Fudan University, Shanghai, China
| | - Jun Xu
- Reproductive medicine centre, Zhongshan hospital, Fudan University, Shanghai, China
| | - Xiaowei Ji
- Reproductive medicine centre, Zhongshan hospital, Fudan University, Shanghai, China
| | - Suying Liu
- Reproductive medicine centre, Zhongshan hospital, Fudan University, Shanghai, China
| | - Jin Zhu
- Department of Obstetrics and Gynecology, Shanghai Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.
| | - Xi Dong
- Reproductive medicine centre, Zhongshan hospital, Fudan University, Shanghai, China.
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Caballero J, Blondin P, Vigneault C, Sirard MA, Richard FJ. The use of adenosine to inhibit oocyte meiotic resumption in Bos taurus during pre-IVM and its potential to improve oocyte competence. Theriogenology 2019; 142:207-215. [PMID: 31614287 DOI: 10.1016/j.theriogenology.2019.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 09/10/2019] [Accepted: 10/03/2019] [Indexed: 02/01/2023]
Abstract
One of the major challenges of artificial reproductive technologies is to develop new methods for producing greater numbers of embryos. An oocyte fosters the ability to develop into an embryo before oocyte meiotic resumption. The aim of the present study was to assess the effect of adenosine (ADO), a purine nucleoside found in follicular fluid, on the inhibition of oocyte meiotic resumption and the production of blastocysts. The results showed the efficacy of ADO to inhibit oocyte meiotic resumption. The use of ADO (3 mM) during a pre-in vitro maturation (pre-IVM) culture period of 6 h resulted in a significant increase (p < 0.05) of blastocysts compared to control conditions with no pre-IVM culture period. No effect on the percentage of cleavage was observed. The effect of adenosine on blastocyst yield was time- and concentration-dependent with an optimum effect at 3 mM for 6 h. Supplementing the ADO pre-IVM culture medium with estradiol, follicle-stimulating hormone, progesterone, epidermal growth factor, insulin-like growth factor-2 or reelin did not improve the blastocyst yield. Transcriptional analyses of ADO-treated cumulus cells revealed that NRP1, RELN, MAN1A1, THRA and GATM were up-regulated. Finally, bioinformatic analysis identified mitochondrial function as the top canonical pathway affected by ADO. This opens up new opportunities for further investigations.
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Affiliation(s)
- Julieta Caballero
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle, Département des Sciences Animales, Faculté des Sciences de L'agriculture et de L'alimentation, Université Laval, Québec, Québec, G1V 0A6, Canada
| | - Patrick Blondin
- L'Alliance Boviteq Inc, 19320 Grand Rang St-François, Saint-Hyacinthe, Québec, J2T 5H1, Canada
| | - Christian Vigneault
- L'Alliance Boviteq Inc, 19320 Grand Rang St-François, Saint-Hyacinthe, Québec, J2T 5H1, Canada
| | - Marc-André Sirard
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle, Département des Sciences Animales, Faculté des Sciences de L'agriculture et de L'alimentation, Université Laval, Québec, Québec, G1V 0A6, Canada
| | - François J Richard
- Centre de Recherche en Reproduction, Développement et Santé Intergénérationnelle, Département des Sciences Animales, Faculté des Sciences de L'agriculture et de L'alimentation, Université Laval, Québec, Québec, G1V 0A6, Canada.
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Tetsuka M, Tanakadate M. Activation of HSD11B1 in the bovine cumulus-oocyte complex during IVM and IVF. Endocr Connect 2019; 8:1029-1039. [PMID: 31252401 PMCID: PMC6652248 DOI: 10.1530/ec-19-0188] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 06/26/2019] [Indexed: 02/02/2023]
Abstract
The bovine cumulus-oocyte complex (COC) is capable of converting cortisone, an inert glucocorticoid to active cortisol. This mechanism is mediated by 11β-hydroxysteroid oxidoreductase type 1 (HSD11B1), whose expression dramatically increases in the mature COC. In this study, we investigate the time course expression of HSD11B1 and the enzyme activity in the bovine COC undergoing maturation and fertilization in relation to key events taking place in the COC. Bovine COCs were subjected to in vitro maturation (IVM) and fertilization (IVF). The activities of HSD11B1 and HSD11B2, which mediates the opposite reaction, were measured using a radiometric conversion assay. In parallel studies, cumulus expansion, P4 production and the expression of genes associated with ovulation were measured. The reductive activity of HSD11B1 increased in the latter half of IVM and remained high during IVF, whereas the oxidative activity of HSD11B2 remained unchanged over both periods. Consequently, the net glucocorticoid metabolism in the bovine COC shifted from inactivation to activation around the time of ovulation and fertilization. The increase in HSD11B1 expression lagged behind that of P4 increase and cumulus expansion but ahead of the expressions of genes responsible for PGE2 synthesis. The reductive activity of HSD11B1 was well correlated with the cumulus expansion rate. This outcome indicates that the ability of the cumulus to activate glucocorticoids is related to its ability to synthesize hyaluronan. These results also indicate that the activation of HSD11B1 is an integral part of the sequential events taking place at the ovulation and fertilization in the bovine COC.
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Affiliation(s)
- Masafumi Tetsuka
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
- Correspondence should be addressed to M Tetsuka:
| | - Misato Tanakadate
- Department of Life and Food Science, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido, Japan
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Aller JF, Abalos MC, Acuña F, Cancino AK. Plasma steroid profiles and ovarian response in llamas treated with eCG for superovulation combined with exogenous progesterone during early luteal phase. Anim Reprod Sci 2019; 208:106108. [PMID: 31405462 DOI: 10.1016/j.anireprosci.2019.106108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 06/03/2019] [Accepted: 06/24/2019] [Indexed: 11/29/2022]
Abstract
The objective of this study was to evaluate the effects of plasma progesterone (P4) concentrations during eCG-ovarian follicular superstimulatory treatment performed in early luteal phase and estradiol concentrations during peri-ovulatory period on ovarian response, number and embryo quality. On Day -2, females (n = 75) having a follicle ≥7 mm were treated with GnRH to induce ovulation. On Day 0, females that had ovulations (n = 54) were treated with 1000 IU eCG and were assigned to one of two treatments: (1) intravaginal device (ID) containing 0.5 g P4 (P4 group) and (2) no ID (Control group). On Day 5, females were administered PGF2α and the ID was removed. On Day 7 and 8, females were mated and embryo recovery was performed 7 or 8 days later. Blood samples were collected from Day 0 to 9. Number (± SD) of follicles ≥7 mm on day of mating was greater (P = 0.04) in the control (9.7 ± 4.2) than P4-treated (6.7 ± 4.9) group; number of corpora lutea did not differ (5.5 ± 3.1 and 5.2 ± 3.4 respectively). Ovulation rate was greater (P < 0.01) in the P4-group (77.4%; 130/168) than control group (53.3%; 135/253). Number of embryos with an excellent grade (grade 1) tended to be greater (P = 0.07) in the P4-group (82.4%; 42/51) than control group (65.4%; 36/55). It was concluded that supplementation with exogenous P4 during eCG treatment in early luteal phase inhibits excessive follicular growth, increases ovulation rate and improves embryo quality.
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Affiliation(s)
- Juan F Aller
- Instituto Nacional de Tecnología Agropecuaria (INTA), Estación Experimental Agropecuaria Balcarce, 7620, Balcarce, Argentina.
| | - Marcos C Abalos
- INTA, Estación Experimental Agropecuaria Abra Pampa, Argentina
| | - Francisco Acuña
- INTA, Estación Experimental Agropecuaria Abra Pampa, Argentina
| | - Andrea K Cancino
- INTA, Estación Experimental Agropecuaria Bariloche, 8400, Bariloche, Argentina
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Temporal expression pattern of steroid-metabolizing enzymes in bovine COC during in vitro maturation employing different gonadotropin concentrations. Theriogenology 2019; 131:182-192. [PMID: 30981973 DOI: 10.1016/j.theriogenology.2019.03.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 03/10/2019] [Accepted: 03/30/2019] [Indexed: 01/17/2023]
Abstract
Steroid hormones are regulators in the fine-tuned process of follicular development. During final maturation in vivo a switch from oestradiol (E2) to progesterone (P4) dominance within the follicle is well-described. This change is accompanied by the resumption of meiosis and results in the maturation of the oocyte. It also suggests the important role of these hormones. However, present in vitro maturation (IVM) systems do not completely mimic the in vivo situation, resulting in oocytes of reduced quality. Aim of the study was to determine the temporal pattern of steroid hormone concentrations in the IVM medium of bovine cumulus-oocyte-complexes (COC) at defined time points. The influence of different gonadotropin supplementations during IVM on oocyte maturation, as well as the molecular quality of the oocytes and their corresponding cumulus cells was investigated. COCs were obtained from abattoir-derived ovaries and matured in medium added with different compounds of gonadotropins (eCG/hCG; FSH/LH, each at 0.05 IU or 0.01 IU; only FSH; without gonadotropins) employing a standard protocol without oil overlay. In experiment 1, medium, oocytes and cumulus cells were collected at different time points (0 h [control], 4 h, 8 h, 12 h, 16 h, 20 h, 24 h) after IVM in just eCG/hCG-supplemented medium. In experiment 2, medium, oocytes and cumulus cells were collected at 0 h (control) and after 24 h of IVM with all above-named supplements. The E2 concentration remained similar during IVM whereas P4 concentration increased during experiment 1. No significant changes could be determined after the addition of different gonadotropins (experiment 2). These results suggest that during IVM the temporal pattern of E2 and P4 did not correspond with the pattern during final maturation in vivo. RT-qPCR was used to assess the relative abundance of developmentally important genes in oocytes (BMP15; GDF9; ZAR1; PGR; PGRMC1/2; G6PD; StAR; ESR1/2; SULT1E1; STS; SOAT) and cumulus cells (ESR1/2; FSHR; LHCGR; CYP19A1; HSD3B1; PGR; PGRMC1/2; SULT1E1; STS; SOAT) at all collection points in both experiments. Most transcripts follow a time-regulated mRNA expression pattern during the entire in vitro maturation period. In addition, the expression of the analyzed transcripts was not influenced by the different gonadotropin supplementations during the IVM period. In all, this underlines that present conditions of IVM do not reflect the in vivo situation and require further optimisation.
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Photobiomodulation can improve ovarian activity in polycystic ovary syndrome-induced rats. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2019; 194:6-13. [PMID: 30897401 DOI: 10.1016/j.jphotobiol.2019.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/04/2018] [Accepted: 03/10/2019] [Indexed: 11/20/2022]
Abstract
Follicular cystic ovary disease is a common reproductive disorder in women and females of domestic animals, characterized by anovulation and the persistence of follicle is a common cause of reproductive failure in mammalian. Polycystic ovary syndrome (PCOS) is characterized by hyperandrogenism (HA), chronic anovulation and polycystic ovaries, and it is a common reproductive endocrine disease with clinical manifestations including hirsutism, acne, infertility and obesity that can affect 5-20% of women in their reproductive age. Photobiomodulation (PBM) has been investigated and used in clinical practice, related to biomodulatory influences on cellular functions in animals and humans, both in vivo and in vitro. In this study, we include endocrine and reproductive features in a rat model for PCOS and the effects of PBM on ovarian activities. Forty-five adult female Wistar rats PCOS-induced by a single dose of the estradiol valerate (EV) were used in the study. After the EV injection for PCO induction, rats were divided into 9 groups (n = 5/group) named C30, C45 and C60 (Control group), S30, S45 and S60 (PCO group) and L30, L45 and L60 (PCO/Laser group). The rats were irradiated with laser 3 times/week. The results shown that EV PCO-induced rats had increased body mass, reduced ovary mass, and reduced GSI. The plasma levels of P4 and T were increased, and the LH plasma level was decreased by PBM stimulation. The number of ovarian follicles and corpus luteum were increased, and the number of ovarian cysts was decreased by PBM stimulation. Thus, reproductive and endocrine characteristics were modulated by PBM.
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38
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Saad M, Sarwar Z, Saleem M, Arshad U, Shahzad M, Hassan Mushtaq M, Husnain A, Riaz A, Ahmad N. Effect of plasma progesterone on oocyte recovery, oocyte quality, and early in-vitro developmental competence of embryos in Bos indicus dairy cows. Anim Reprod Sci 2019; 202:80-86. [PMID: 30765111 DOI: 10.1016/j.anireprosci.2019.02.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/20/2018] [Accepted: 02/06/2019] [Indexed: 11/29/2022]
Abstract
The objective of present study was to determine the effect of plasma progesterone (P4) on oocyte recovery, oocyte quality, and early in-vitro developmental competence of embryos in Bos indicus dairy cows. The ovaries were collected in an abattoir. These ovaries (n = 750) were divided into two groups: 1) estrous CYCLIC (n = 318), and 2) estrous ACYCLIC (n = 432). Mean serum concentrations of P4 in a subset of (n = 85; 4.21 ± 0.4 ng/ml compared with 0.5 ± 0.2 ng/ml; P < 0.05) were greater in estrous CYCLIC as compared to ACYCLIC cows, respectively. The mean number of oocytes recovered per ovary (6.5 ± 0.5 compared with 4.0 ± 0.2; P < 0.05) was greater for estrous CYCLIC than ACYCLIC cows, respectively. The oocytes with grade I_+_II quality (55.3% compared with 47.6%; P < 0.05) were greater, whereas, there was lesser percentage with grade III_+_IV quality (44.5% compared with 52.4%; P < 0.05) from estrous CYCLIC as compared with ACYCLIC cows, respectively. Cleavage rate (70.9% compared with 52.8%; P < 0.05) was greater for embryos derived from estrous CYCLIC than ACYCLIC cows, respectively. Similarly, the embryo developmental rates to the 8- (38.5% compared with 20.8%; P < 0.05) and 16- (20.0% compared with 10.9%; P < 0.05) cell stage were greater for embryos derived from estrous CYCLIC as compared to ACYCLIC cows, respectively. In conclusion, the presence of greater plasma P4 has a beneficial effect on oocyte recovery, oocyte quality, and early IVEP outcomes in Bos indicus dairy cows.
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Affiliation(s)
- Muhammad Saad
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Zaeem Sarwar
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Muhammad Saleem
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Usman Arshad
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Muhammad Shahzad
- Nuclear Institute for Agriculture and Biology (NIAB), Faisalabad 38000, Pakistan
| | - Muhammad Hassan Mushtaq
- Department of Epidemiology and Public Health, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Ali Husnain
- Department of Animal Sciences, University of Florida, Gainesville, FL 32611, USA
| | - Amjad Riaz
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan
| | - Nasim Ahmad
- Department of Theriogenology, Faculty of Veterinary Science, University of Veterinary and Animal Sciences, Lahore 54000, Pakistan.
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Extent and pattern of pregnancy losses and progesterone levels during gestation in Swedish Red and Swedish Holstein dairy cows. Acta Vet Scand 2018; 60:68. [PMID: 30376885 PMCID: PMC6208093 DOI: 10.1186/s13028-018-0420-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 10/23/2018] [Indexed: 12/19/2022] Open
Abstract
Background Pregnancy loss is a major source of infertility in dairy cows. Despite a fertilization rate after insemination (AI) of approximately 90%, calving rates are 30%–50%, indicating the occurrence of extensive embryonic and foetal losses. The aim of this study was to establish the extent and pattern of embryonic and foetal loss in Swedish Red (SR) and Swedish Holstein (SH) dairy cows, as well as, the relationship to oestrus intensity (OI) and progesterone (P4) concentration. In total, 2130 AIs and 16,176 milk P4 samples from 359 SR and 212 SH dairy cows were included in the study. Pregnancy losses were estimated using data from P4 values combined with AI information and calving data. Results Total pregnancy loss from AI to the day of calving was 65%. Early embryonic loss, late embryonic loss and foetal loss were estimated to be 29, 14 and 13%, respectively. There is strong evidence in the literature that P4 concentrations at different time points are associated with pregnancy loss. In the present study, cows with pregnancy losses had significantly higher P4 levels at the day of AI and significantly lower P4 concentration at days 10, 21 and 30 after AI compared to pregnant cows. Swedish Red cows had significantly lower total pregnancy losses compared to SH cows (62% and 68% respectively, P = 0.017). Early embryonic loss was 6.7% points lower for cows inseminated at a stronger OI (OI = 3) compared to at a weaker OI (OI = 2, P = 0.006). Cows inseminated at ovulation number ≥ 5 had significantly lower early pregnancy losses compared to cows inseminated at first or second ovulation (11.5 and 8% points, respectively, P < 0.05). With an increase of one SD of milk (448 kg ECM) during the first 60 days in milk, early embryonic loss increased by 4.7% points (P = 0.006). Conclusions It is important to increase the number of cows calving per insemination by reducing embryo/foetal loss. This outcome can be achieved by management and breeding for optimal P4 levels at critical time points, and by considering oestrus expression in the breeding programmes to facilitate the correct timing of insemination.
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Carrasco RA, Singh J, Adams GP. The relationship between gonadotropin releasing hormone and ovulation inducing factor/nerve growth factor receptors in the hypothalamus of the llama. Reprod Biol Endocrinol 2018; 16:83. [PMID: 30170607 PMCID: PMC6119247 DOI: 10.1186/s12958-018-0402-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 08/24/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A molecule identical to nerve growth factor, with ovulation-inducing properties has been discovered in the seminal plasma of South American camelids (ovulation-inducing factor/nerve growth factor; OIF/NGF). We hypothesize that the ovulatory effect of OIF/NGF is initiated at the level of the hypothalamus, presumably by GnRH neurons. The objective of the present study was to determine the structural relationship between GnRH neurons and neurons expressing high- and low-affinity receptors for NGF (i.e., TrkA and p75, respectively) in the hypothalamus. METHODS Mature llamas (n = 4) were euthanized and their hypothalamic tissue was fixed, sectioned, and processed for immunohistochemistry on free-floating sections. Ten equidistant sections per brain were double stained for immunofluorescence detection of TrkA and GnRH, or p75 and GnRH. RESULTS Cells immunoreactive to TrkA were detected in most hypothalamic areas, but the majority of cells were detected in the diagonal band of Broca (part of the ventral forebrain) and the supraoptic nuclei and periventricular area. The number of cells immunoreactive to p75 was highest in the diagonal band of Broca and lateral preoptic areas and least in more caudal areas of the hypothalamus (p < 0.05) in a pattern similar to that of TrkA. A low proportion of GnRH neurons were immunoreactive to TrkA (2.5% of total GnRH cells), and no co-localization between GnRH and p75 was detected. GnRH neuron fibers were detected only occasionally in proximity to TrkA immunopositive neurons. CONCLUSIONS Results do not support the hypothesis that the effect of OIF/NGF is driven by a direct interaction with GnRH neurons, but rather provide rationale for the hypothesis that interneurons exist in the hypothalamus that mediate OIF/NGF-induced ovulation.
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Affiliation(s)
- Rodrigo A. Carrasco
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 campus drive, Saskatoon, Saskatchewan S7N5B4 Canada
| | - Jaswant Singh
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 campus drive, Saskatoon, Saskatchewan S7N5B4 Canada
| | - Gregg P. Adams
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, 52 campus drive, Saskatoon, Saskatchewan S7N5B4 Canada
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Cavalieri J, Gaina C, Hepworth G. Randomised controlled trial of the effect of concentration of progesterone before artificial insemination on fertility in ovulatory and anovulatory Bos indicus
cattle. Aust Vet J 2018; 96:346-355. [DOI: 10.1111/avj.12728] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 04/07/2018] [Accepted: 04/30/2018] [Indexed: 11/29/2022]
Affiliation(s)
- J Cavalieri
- College of Public Health, Medical and Veterinary Sciences; James Cook University; Townsville Queensland 4811 Australia
| | - C Gaina
- College of Public Health, Medical and Veterinary Sciences; James Cook University; Townsville Queensland 4811 Australia
| | - G Hepworth
- The Statistical Consulting Centre; The University of Melbourne; Parkville Victoria Australia
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Menchaca A, Cuadro F, Dos Santos-Neto PC, Bosolasco D, Barrera N, de Brun V, Crispo M. Oocyte developmental competence is improved by relatively greater circulating progesterone concentrations during preovulatory follicular growth. Anim Reprod Sci 2018; 195:321-328. [PMID: 31262405 DOI: 10.1016/j.anireprosci.2018.06.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Revised: 05/31/2018] [Accepted: 06/21/2018] [Indexed: 01/28/2023]
Abstract
This study evaluated the effect of progesterone priming during follicular growth on oocyte competence to undergo oocyte cleavage and embryo development in sheep. Two experiments were performed on a total of 195 females that either received or did not receive a progesterone treatment (CIDR-type device) during the first follicular wave, beginning soon after ovulation (i.e., Day 0 of the experiment). On Day 3, the follicular population and oocyte quality (Experiment 1 and 2) and the competence of oocytes for cleavage and embryo development (Experiment 2) were evaluated after laparoscopic ovum pickup (LOPU) and in vitro fertilization. In Experiment 1, in a 2 × 2 factorial study the progesterone priming treatment (treated or not) was or was not associated with a single dose of FSH in a slow-release hyaluronic acid preparation given on Day 0. The follicular population on Day 3 and the number and morphology of recovered cumulus oocyte complexes (COCs) were not affected by the progesterone treatment (P = NS) but were improved by the FSH administration (P < 0.05). An interaction between both treatments was observed (P < 0.05), with more desirable outcome with the females that received both the progesterone and the FSH treatments. In Experiment 2, half of the females received the exogenous progesterone priming, and all females received FSH on Day 0. After follicular aspiration on Day 3, the cleavage rate and the embryo development rate following in vitro fertilization and culture were greater in those females that received the progesterone treatment (P < 0.05). In conclusion, these studies provide evidence that progesterone treatment during follicular growth affects oocyte competence, with the greater progesterone concentrations enhancing the oocyte's capacity to undergo cleavage and embryo development.
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Affiliation(s)
- A Menchaca
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay.
| | - F Cuadro
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay
| | - P C Dos Santos-Neto
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay
| | - D Bosolasco
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay
| | - N Barrera
- Instituto de Reproducción Animal Uruguay, Fundacion IRAUy, Cruz del Sur 2250, Montevideo, Uruguay
| | - V de Brun
- Laboratorio de Técnicas Nucleares, Facultad de Veterinaria, Universidad de la República, Av. Lasplaces, 1550, Montevideo, Uruguay
| | - M Crispo
- Unidad de Animales Transgénicos y de Experimentación, Institut Pasteur de Montevideo, Mataojo, 2020, Montevideo, Uruguay
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Guerreiro TM, Gonçalves RF, Melo CFOR, de Oliveira DN, Lima EDO, Visintin JA, de Achilles MA, Catharino RR. A Metabolomic Overview of Follicular Fluid in Cows. Front Vet Sci 2018; 5:10. [PMID: 29473045 PMCID: PMC5809397 DOI: 10.3389/fvets.2018.00010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 01/18/2018] [Indexed: 12/30/2022] Open
Abstract
Follicular fluid (FF) protects the oocyte against proteolysis and extrusion during ovulation, providing an appropriate microenvironment that favors proper embryonic development; thereby, FF plays a key role in embryo quality. Being directly related to cattle breeding, studying FF is extremely important in livestock science to measure cattle fertility. This may eventually help to assess the quality of both meat and milk, products widely consumed worldwide. There is an important commercial interest in the evaluation and characterization of compounds present in the FF of livestock that present greater likelihood of pregnancy. Mass spectrometry is a great ally for this type of analysis and can provide quick and efficient screening for molecular markers in biological samples. The present study demonstrated the potential of high-resolution mass spectrometry in analyzing FF samples from two distinct groups of Nellore cows (Bos indicus): high and low fertility, as determined by the number of oocytes produced. We were able to delineate markers of interest for each group, which may ultimately be related to biochemical pathways that lead to higher or lower reproductive performance.
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Affiliation(s)
- Tatiane Melina Guerreiro
- Innovare Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Roseli Fernandes Gonçalves
- Department of Animal Reproduction, College of Veterinary Medicine and Animal Science, São Paulo University - USP, São Paulo, Brazil
| | - Carlos Fernando O Rodrigues Melo
- Innovare Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Diogo Noin de Oliveira
- Innovare Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Estela de Oliveira Lima
- Innovare Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
| | - Jose Antônio Visintin
- Department of Animal Reproduction, College of Veterinary Medicine and Animal Science, São Paulo University - USP, São Paulo, Brazil
| | | | - Rodrigo Ramos Catharino
- Innovare Biomarkers Laboratory, School of Pharmaceutical Sciences, University of Campinas - UNICAMP, Campinas, São Paulo, Brazil
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Blavy P, Friggens N, Nielsen K, Christensen J, Derks M. Estimating probability of insemination success using milk progesterone measurements. J Dairy Sci 2018; 101:1648-1660. [DOI: 10.3168/jds.2016-12453] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 09/01/2017] [Indexed: 11/19/2022]
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Effect of Frozen Embryo Transfer and Progestin-primed Ovary Stimulation on IVF outcomes in women with high body mass index. Sci Rep 2017; 7:7447. [PMID: 28785018 PMCID: PMC5547067 DOI: 10.1038/s41598-017-07773-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/03/2017] [Indexed: 12/12/2022] Open
Abstract
Among women undergoing IVF, high BMI negatively affects pregnancy outcomes when using the conventional ovary stimulating protocols combined with fresh embryo transfer. Therefore, finding a proper treatment for these high BMI women is more important and urgent when obesity is prevalent. In our study, we reported a retrospective study of 4457 women who were divided into normal BMI group (18.5 kg/m2–24.9 kg/m2) and high BMI group (≥25 kg/m2) undergoing 4611 IVF treatment cycles with frozen embryo transfer (FET). We found the high BMI group originally had the poor oocytes performance, but after FET they got the similar pregnancy outcomes as the normal BMI group. Then under FET we analyzed the IVF outcomes of our new progestin-primed ovary stimulation (PPOS) protocol, indicating that the hMG + MPA (4 or 10 mg/d) groups had the obvious better pregnancy results than the conventional short group in the high BMI group, and binary logistic regression analysis showed the hMG + MPA (10 mg/d) group was associated with better pregnancy outcomes than the hMG + MPA (4 mg/d) group. These results indicate PPOS - hMG + MPA (10 mg/d) combined with FET might be a new potential treatment choice for the high BMI women undergoing IVF treatments.
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Vanni VS, Somigliana E, Reschini M, Pagliardini L, Marotta E, Faulisi S, Paffoni A, Vigano’ P, Vegetti W, Candiani M, Papaleo E. Top quality blastocyst formation rates in relation to progesterone levels on the day of oocyte maturation in GnRH antagonist IVF/ICSI cycles. PLoS One 2017; 12:e0176482. [PMID: 28520729 PMCID: PMC5435161 DOI: 10.1371/journal.pone.0176482] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 04/11/2017] [Indexed: 02/05/2023] Open
Abstract
Cycles with progesterone elevation during controlled ovarian stimulation (COS) for IVF/ICSI are commonly managed with a "freeze-all" strategy, due to a well-recognized detrimental effect of high progesterone levels on endometrial receptivity. However, also a detrimental effect of elevated progesterone on day-3 embryo quality has recently been found with regards to top quality embryo formation rate. Because blastocyst culture and cryopreservation are largely adopted, we deemed relevant to determine whether this detrimental effect is also seen on blastocyst quality on day 5-6. This issue was investigated through a large two-center retrospective study including 986 GnRH antagonist IVF/ICSI cycles and using top quality blastocyst formation rate as the main outcome. Results showed that on multivariate analysis sperm motility (p<0.01) and progesterone levels at ovulation triggering (p = 0.01) were the only two variables that significantly predicted top quality blastocyst formation rate after adjusting for relevant factors including female age, BMI, basal AMH and total dose of FSH used for COS. More specifically, progesterone levels at induction showed an inverse relation with top quality blastocyst formation (correlation coefficient B = -1.08, 95% CI -1.9 to -0.02) and ROC curve analysis identified P level >1.49 ng/ml as the best cut-off for identification of patients at risk for the absence of top quality blastocysts (AUC 0.55, p<0.01). Our study is the first to investigate the top quality blastocyst formation rate in relation to progesterone levels in IVF/ICSI cycles, showing that increasing progesterone is associated with lower rates of top quality blastocyst. Hence, the advantages of prolonging COS to maximize the number of collected oocytes might eventually be hindered by a decrease in top quality blastocysts available for transfer, if increasing progesterone levels are observed. This observation extends the results of two recent studies focused on day-3 embryos and deserves further research.
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Affiliation(s)
- V. S. Vanni
- Centro Scienze Natalità, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - E. Somigliana
- Fondazione IRCCS Ca’Granda, Ospedale Maggiore Policlinico, Milan, Italy
- Università degli Studi di Milano, Milan, Italy
| | - M. Reschini
- Fondazione IRCCS Ca’Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - L. Pagliardini
- Centro Scienze Natalità, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - E. Marotta
- Centro Scienze Natalità, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - S. Faulisi
- Centro Scienze Natalità, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - A. Paffoni
- Fondazione IRCCS Ca’Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - P. Vigano’
- Centro Scienze Natalità, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Division of Genetics and Cell Biology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- * E-mail:
| | - W. Vegetti
- Fondazione IRCCS Ca’Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - M. Candiani
- Università Vita-Salute San Raffaele, Milan, Italy
| | - E. Papaleo
- Centro Scienze Natalità, IRCCS San Raffaele Scientific Institute, Milan, Italy
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Ge H, Zhang F, Duan P, Zhu N, Zhang J, Ye F, Shan D, Chen H, Lu X, Zhu C, Ge R, Lin Z. Mitochondrial Uncoupling Protein 2 in human cumulus cells is associated with regulating autophagy and apoptosis, maintaining gap junction integrity and progesterone synthesis. Mol Cell Endocrinol 2017; 443:128-137. [PMID: 28089824 DOI: 10.1016/j.mce.2017.01.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 01/11/2017] [Accepted: 01/12/2017] [Indexed: 01/24/2023]
Abstract
To explore the roles of mitochondrial Uncoupling Protein 2 (UCP2) in cumulus cells (CCs), human CCs were cultured in vitro, and the UCP2 was inhibited by treatment with Genipin, a special UCP inhibitor, or by RNA interference targeting UCP2. No significant differences in adenosine triphosphate levels and the ratio of ADP/ATP were observed after UCP2 inhibition. UCP2 inhibition caused a significant increase in cellular oxidative damage, which was reflected in alterations to several key parameters, including reactive oxygen species (ROS) and lipid peroxidation levels and the ratio of reduced GSH to GSSG. UCP2 blocking resulted in an obvious increase in active Caspase-3, accompanied by the decline of proactive Caspase-3 and a significant increase in the LC3-II/LC3-I ratio, suggesting that UCP2 inhibition triggered cellular apoptosis and autophagy. The mRNA and protein expression of connexin 43 (Cx43), a gap junction channel protein, were significantly reduced after treatment with Genipin or siRNA. The progesterone level in the culture medium was also significantly decreased after UCP2 inhibition. Our data indicated that UCP2 plays highly important roles in mediating ROS production and regulating apoptosis and autophagy, as well as maintaining gap junction integrity and progesterone synthesis, which suggests that UCP2 is involved in the regulation of follicle development and early embryo implantation and implies that it might serve as a potential biomarker for oocyte quality and competency.
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Affiliation(s)
- Hongshan Ge
- Center for Reproductive Medicine, Department of Obstetrics and Gynaecology, Taizhou People's Hospital, The Fifth Hospital Affiliated Nantong University, Taizhou, Jiangsu Province, 225300, People's Republic of China; The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China.
| | - Fan Zhang
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Ping Duan
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Nan Zhu
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Jiayan Zhang
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Feijun Ye
- Maternal and Child Health Hospital, Zhoushan Hospital Affiliated Wenzhou Medical University, Zhejiang Province, 316100, People's Republic of China
| | - Dan Shan
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Hua Chen
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - XiaoSheng Lu
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - ChunFang Zhu
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Renshan Ge
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China
| | - Zhenkun Lin
- The Second Affiliated Hospital and YuYing Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang Province, 325000, People's Republic of China.
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Dubeibe DF, Caldas-Bussiere MC, Maciel VL, Sampaio WV, Quirino CR, Gonçalves PBD, De Cesaro MP, Faes MR, Paes de Carvalho CS. L-arginine affects the IVM of cattle cumulus-oocyte complexes. Theriogenology 2016; 88:134-144. [PMID: 27743687 DOI: 10.1016/j.theriogenology.2016.09.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 07/27/2016] [Accepted: 09/09/2016] [Indexed: 11/18/2022]
Abstract
Nitric oxide (NO) is identified as a signaling molecule involved in many cellular or physiological functions, including meiotic maturation of cattle oocytes. This study aimed to evaluate the effect of supplementation of culture medium with the L-arginine (L-arg, NO synthesis precursor) in nuclear maturation of oocytes, concentrations of nitrate/nitrite, progesterone (P4), and 17β-estradiol (E2) in the culture medium; and the cyclic guanosine monophosphate (cGMP) and cyclic adenosine monophosphate (cAMP) intracellular concentrations in the cumulus-oocyte complexes (COCs) during the first hours of maturation in the presence of hemisections (HSs) of the follicular wall (control -ve). The addition of 5.0-mM L-arg increased (P < 0.05) the percentage of oocytes at the germinal vesicle breakdown stage after 7 hours of cultivation compared with control -ve. All concentrations of L-arg (2.5, 5.0, and 10.0 mM) increased the percentage of oocytes that reached the metaphase I (MI) at 15 hours (P < 0.05) but do not affect the progression from MI to metaphase II (P > 0.05) at 22 hours. All concentrations of L-arg tested increased (P < 0.05) the percentage of cumulus cells with plasma membrane integrity at 22 hours of cultivation. L-arginine did not change (P > 0.05) the nitrate/nitrite, P4, and E2 concentrations in relation to control -ve at any of the times tested. In immature COCs, immediately after being removed from the follicles (0 hours), the intracellular concentration of cGMP in the control -ve and treatment with 5-mM L-arg progressively decreased (P < 0.05) after the first hour of cultivation; however, COCs treated with 5.0-mM L-arg had higher concentrations of cGMP at 1 hour of cultivation (P < 0.05). The cAMP concentration of COCs supplemented or not with 5.0-mM L-arg progressively increased until 3 hours of cultivation and at, 6 hours, decreased (P < 0.05). The results show, in using this system, that (1) the mechanisms that give the oocyte the ability to restart the meiosis until MI after adding 5.0-mM L-arg do not involve changes in the concentration of nitrate/nitrite, P4, and E2 in the culture medium and (2) L-arg acts on a pathway that involves changing the cGMP concentration but does not involve changing cAMP concentration. More studies are needed to assess whether the observed effects of L-arg during IVM using this system are via NO or not and what the role is in increasing the viability of cumulus cells in the resumption and progression of meiosis until MI.
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Affiliation(s)
- D F Dubeibe
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro-UENF), Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - M C Caldas-Bussiere
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro-UENF), Campos dos Goytacazes, Rio de Janeiro, Brazil.
| | - V L Maciel
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro-UENF), Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - W V Sampaio
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro-UENF), Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - C R Quirino
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro-UENF), Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - P B D Gonçalves
- Laboratory of Biotechnology and Animal Reproduction, Santa Maria Federal University (Universidade Federal de Santa Maria-UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - M P De Cesaro
- Laboratory of Biotechnology and Animal Reproduction, Santa Maria Federal University (Universidade Federal de Santa Maria-UFSM), Santa Maria, Rio Grande do Sul, Brazil
| | - M R Faes
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro-UENF), Campos dos Goytacazes, Rio de Janeiro, Brazil
| | - C S Paes de Carvalho
- Laboratory of Animal Reproduction and Breeding, State University of Norte Fluminense 'Darcy Ribeiro' (Universidade Estadual do Norte Fluminense Darcy Ribeiro-UENF), Campos dos Goytacazes, Rio de Janeiro, Brazil
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49
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De Bie J, Langbeen A, Verlaet AAJ, Florizoone F, Immig I, Hermans N, Fransen E, Bols PEJ, Leroy JLMR. The effect of a negative energy balance status on β-carotene availability in serum and follicular fluid of nonlactating dairy cows. J Dairy Sci 2016; 99:5808-5819. [PMID: 27157583 DOI: 10.3168/jds.2016-10870] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Accepted: 03/10/2016] [Indexed: 11/19/2022]
Abstract
Maternal metabolic pressure due to a cow's negative energy balance (NEB) has a negative effect on oocyte quality as a result of increased oxidative stress. In this study, we hypothesized that a NEB status may negatively affect the availability of β-carotene (bC, an antioxidant) in the micro-environment of the oocyte or follicular fluid (FF) and that daily bC supplementation can increase bC availability. We aimed to (1) determine the effect of a nutritionally induced NEB on bC concentrations in serum and FF as well as on the presence of bC metabolites, oxidative stress levels, and follicular growth in a nonlactating dairy cow model, and (2) investigate how this effect could be altered by dietary bC supplementation. Six multiparous nonlactating Holstein Friesian cows were subjected to 4 consecutive dietary treatments, 28 d each: (1) 1.2 × maintenance (M) or positive energy balance (PEB) without bC supplement (PEB-bC), (2) 1.2 × M with daily supplement of 2,000mg of bC comparable to the level of bC intake at grazing (PEB+bC), (3) 0.6 × M with 2,000mg of bC (NEB+bC), and (4) 0.6 × M (NEB-bC). At the end of each treatment, estrous cycles were synchronized and blood and FF of the largest follicle were sampled and analyzed for bC, retinol, α-tocopherol, free fatty acids, estradiol, and progesterone. Serum cholesterol, triglycerides, urea, insulin growth factor 1, growth hormone, total antioxidant status (TAS), and red blood cell glutathione (GSH) concentrations were determined as well. All cows lost body weight during both energy restriction periods and showed increased serum free fatty acid concentrations, illustrating a NEB. A dietary induced NEB reduced FF bC, but not plasma bC or plasma and FF retinol concentrations. However, bC and retinol concentrations drastically increased in both fluid compartments after bC supplementation. Follicular diameter was increased in supplemented PEB cows. Energy restriction reduced the TAS and red blood cell GSH, whereas daily bC supplementation could restore GSH concentrations, but not the TAS, to levels present in healthy PEB cows. In conclusion, daily bC supplementation can substantially improve bC and retinol availability in the oocyte's micro-environment, irrespective of the energy balance, which may affect follicular development and oocyte quality in the presence of maternal metabolic stress. This knowledge can be of importance to optimize nutritional strategies in the dairy industry to feed for optimal oocyte quality and fertility.
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Affiliation(s)
- J De Bie
- Gamete Research Centre, Laboratory for Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, B-2610 Wilrijk, Belgium.
| | - A Langbeen
- Gamete Research Centre, Laboratory for Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, B-2610 Wilrijk, Belgium
| | - A A J Verlaet
- Laboratory of Nutrition and Functional Food Science, Department of Pharmaceutical Sciences, University of Antwerp, B-2610 Wilrijk, Belgium
| | - F Florizoone
- DSM Nutritional Products, CH-4303 Kaiseraugst, Switzerland
| | - I Immig
- DSM Nutritional Products, CH-4303 Kaiseraugst, Switzerland
| | - N Hermans
- Laboratory of Nutrition and Functional Food Science, Department of Pharmaceutical Sciences, University of Antwerp, B-2610 Wilrijk, Belgium
| | - E Fransen
- StatUa Center for Statistics, University of Antwerp, B-2610 Wilrijk, Belgium
| | - P E J Bols
- Gamete Research Centre, Laboratory for Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, B-2610 Wilrijk, Belgium
| | - J L M R Leroy
- Gamete Research Centre, Laboratory for Veterinary Physiology and Biochemistry, Department of Veterinary Sciences, University of Antwerp, B-2610 Wilrijk, Belgium
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50
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Lüttgenau J, Purschke S, Tsousis G, Bruckmaier R, Bollwein H. Body condition loss and increased serum levels of nonesterified fatty acids enhance progesterone levels at estrus and reduce estrous activity and insemination rates in postpartum dairy cows. Theriogenology 2016; 85:656-63. [DOI: 10.1016/j.theriogenology.2015.10.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2015] [Revised: 09/29/2015] [Accepted: 10/01/2015] [Indexed: 11/27/2022]
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