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Jung S, Sul H, Oh D, Jung YG, Lee J, Hyun SH. Slow freezing cryopreservation of Korean bovine blastocysts with an additional sucrose pre-equilibration step. Front Vet Sci 2024; 11:1400899. [PMID: 38659455 PMCID: PMC11039926 DOI: 10.3389/fvets.2024.1400899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 03/29/2024] [Indexed: 04/26/2024] Open
Abstract
Introduction Embryo cryopreservation is a valuable technique used for preserving genetic resources for long periods. However, the survival rate of embryos is dependent on the method used. Therefore, in this study, we evaluated the efficiency of slow freezing method but with an additional dehydration step prior to freezing to overcome the formation of ice crystals. Methods Oocytes collected from the ovaries of native Korean cattle subjected to in vitro fertilization were cultured for 7 days until the formation of expanded blastocysts. Before freezing, the blastocysts were placed in four pre-equilibration media: a control medium with no addition of sucrose, and three experimental media with the addition of 0.1, 0.25, and 0.5 M sucrose, respectively. Then, the pre-equilibrated embryos were frozen. Embryo survival and hatching rates were evaluated morphologically at 24, 48, and 72 h after thawing. Immunofluorescence staining, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay, and gene expression analysis of the re-expanded blastocytes were examined 24 h after freeze-thawing. Results The survival rate was significantly higher in the 0.1 M group than in the control group (p < 0.05), and the hatching rate at 72 h was significantly higher in the 0.25 and 0.5 M groups than in the control group (p < 0.05). TUNEL-positive cells were significantly lower in the 0.25 M group than in the control group (12.5 ± 0.9 vs. 8.3 ± 0.8; p < 0.05). The gene expression of BCL2 associated X, heat shock protein 70 kDa, and aquaporin 3 in the 0.25 M group was significantly lower than that in the control group (p < 0.05). Conclusion Our study revealed that treatment with 0.25 M sucrose before slow freezing improved the viability of bovine embryos after freeze-thawing.
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Affiliation(s)
- Seungki Jung
- Veterinary Medical Center and College of Veterinary Medicine, Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), Chungbuk National University, Cheongju, Republic of Korea
- ET Biotech Co. Ltd., Jangsu, Republic of Korea
| | | | - Dongjin Oh
- Veterinary Medical Center and College of Veterinary Medicine, Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), Chungbuk National University, Cheongju, Republic of Korea
- Institute of Stem Cell and Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju, Republic of Korea
| | | | - Joohyeong Lee
- Department of Companion Animal Industry, Semyung University, Jecheon, Republic of Korea
| | - Sang-Hwan Hyun
- Veterinary Medical Center and College of Veterinary Medicine, Laboratory of Veterinary Embryology and Biotechnology (VETEMBIO), Chungbuk National University, Cheongju, Republic of Korea
- Institute of Stem Cell and Regenerative Medicine (ISCRM), Chungbuk National University, Cheongju, Republic of Korea
- Graduate School of Veterinary Biosecurity and Protection, Chungbuk National University, Cheongju, Republic of Korea
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Long Z, Qin H, Huang Z, Xu A, Ye Y, Li Z. Effects of heat stress on physiological parameters, biochemical parameters and expression of heat stress protein gene in Lateolabraxmaculatus. J Therm Biol 2023; 115:103606. [PMID: 37385109 DOI: 10.1016/j.jtherbio.2023.103606] [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: 10/25/2022] [Revised: 05/26/2023] [Accepted: 05/26/2023] [Indexed: 07/01/2023]
Abstract
With global warming and the increasing frequency of extreme heat, we have to consider the heat tolerance of fish to sudden high temperatures. This study investigated the effects of high temperature (32 °C) on physiology and biochemistry and heat shock proteins (HSPs) gene of spotted sea bass (Lateolabrax maculatus). The spotted sea bass (14.7 ± 1.54 g) temporarily cultured at 26 °C was directly transferred to the 32 °C high temperature group, and the gill morphology, liver antioxidant activity, respiratory metabolism related enzyme activity and the expression of five HSP70 family members genes were measured at 3, 6, 9, 12, 24, 48, 72, and 96 h. The results showed that 32 °C had damage effect on gill tissue and antioxidant system, and the damage degree increased with high temperature. Respiratory rate and malondialdehyde increased gradually with the continuous heat stress. Superoxide dismutase and total antioxidant capacity increased briefly and then decreased continuously. Succinate dehydrogenase decreased to the lowest value at 24 h and then continued to increase. Lactate dehydrogenase decreased continuously; the expression of HSP70 increased rapidly and then decreased. These results indicated that the antioxidant system and HSP70 were activated under heat stress condition and provided protection to the body, but with the continuous high temperature, the protective effect was limited, and the fish body was irreversibly damaged. It is necessary to pay close attention to the temperature change in the production practice of spotted sea bass to reduce the influence caused by high temperature.
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Affiliation(s)
- Zhongying Long
- Fisheries College, Jimei University, Xiamen, China; Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Huihui Qin
- Fisheries College, Jimei University, Xiamen, China; Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Zhangfan Huang
- Fisheries College, Jimei University, Xiamen, China; Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Anle Xu
- Fisheries College, Jimei University, Xiamen, China; Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Youling Ye
- Fisheries College, Jimei University, Xiamen, China; Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China
| | - Zhongbao Li
- Fisheries College, Jimei University, Xiamen, China; Fujian Provincial Key Laboratory of Marine Fishery Resources and Eco-environment, Xiamen, China.
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SAKATANI M. «The role of reproductive biology in SDGs» Global warming and cattle reproduction: Will increase in cattle numbers progress to global warming? J Reprod Dev 2022; 68:90-95. [PMID: 35095022 PMCID: PMC8979800 DOI: 10.1262/jrd.2021-149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The livestock industry produces a large amount of greenhouse gases (GHG) that cause global warming. A high percentage of GHG emissions are derived from cattle and has been suggested to be a
factor in global warming. With the global increase in the consumption of livestock products, the number of farm animals has increased. In addition, the reduction in productivity and
reproductive capacity of cattle has resulted in accelerated GHG emissions. In a high-temperature environment, the pregnancy rate decreases, leading to an increase in animals that do not
contribute to production. Consequently, GHG emission per unit product increases, thereby accelerating global warming. To reduce this environmental impact, it is important to improve the
breeding efficiency of cattle by the use of reproductive technology and, thus, reduce the number of non-productive animals. Thus, reproductive biology plays a major role in mitigating global
warming related to the livestock industry.
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Affiliation(s)
- Miki SAKATANI
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Tochigi 329-2793, Japan
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Kubota K, Miwa M, Hayashi KG, Hosoe M, Sakatani M. Steroidal but not embryonic regulation of mucin 1 expression in bovine endometrium. J Reprod Dev 2021; 67:386-391. [PMID: 34645736 PMCID: PMC8668378 DOI: 10.1262/jrd.2021-087] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
In cow herd management, inadequate embryo implantation leads to pregnancy loss and causes severe economic losses. Thus, it is crucial to understand the molecular mechanisms underlying
endometrial receptivity and subsequent embryo implantation. Transmembrane glycocalyx mucin 1 (MUC1) has a large and highly glycosylated extracellular domain known to inhibit embryo
implantation via steric hindrance. The role of MUC1 in the bovine endometrium remains to be explored. Herein, we used simple but reliable in vivo and in
vitro experiments to investigate the expression and regulation of MUC1 in the bovine endometrium. MUC1 gene expression was analyzed in endometrial epithelial
cells collected by the cytobrush technique using reverse transcription-quantitative polymerase chain reaction. MUC1 protein expression was evaluated by immunohistochemical analysis of
endometrial samples collected from slaughtered cows. We used an in vitro cell culture model to study the regulation of MUC1 expression by treating cells with sex steroidal
hormones or co-culturing cells with a blastocyst. The results revealed that MUC1 was expressed and localized to the apical surface of luminal epithelial cells in the bovine endometrium. MUC1
expression disappeared during the luteal phase of the estrous cycle and during pregnancy. 17β-estradiol induced MUC1 expression, whereas progesterone inhibited its increase
and co-culturing with blastocysts did not affect the expression. A long postpartum interval is a known risk factor for reduced fertility, and MUC1 expression was higher in this compromised
condition. Our results demonstrated the MUC1 regulation by steroid hormones in bovine endometrium for embryo implantation, and we observed a negative correlation between MUC1 expression and
fertility.
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Affiliation(s)
- Kaiyu Kubota
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tochigi 329-2793, Japan
| | - Masafumi Miwa
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tochigi 329-2793, Japan
| | - Ken-Go Hayashi
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Ibaraki 305-0901, Japan
| | - Misa Hosoe
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Ibaraki 305-0901, Japan
| | - Miki Sakatani
- Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), Tochigi 329-2793, Japan
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Yodrug T, Parnpai R, Hirao Y, Somfai T. The effects of vitrification after equilibration in different concentrations of cryoprotectants on the survival and quality of bovine blastocysts. Anim Sci J 2020; 91:e13451. [PMID: 32926550 DOI: 10.1111/asj.13451] [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: 06/08/2020] [Revised: 07/20/2020] [Accepted: 08/02/2020] [Indexed: 11/27/2022]
Abstract
This study assessed the effects of cryoprotectant concentration during equilibration on the efficiency of bovine blastocyst vitrification and the expression of selected developmentally important genes. In vitro produced bovine blastocysts were equilibrated in either 7.5% ethylene glycol (EG) + 7.5% DMSO (Va group) or in 2% EG + 2% DMSO (Vb group) then vitrified on Cryotop® sheets in 16.5% EG + 16.5% DMSO + 0.5M sucrose. After warming, embryos were cultured for 48 hr. Re-expansion, hatching, and the numbers of total and membrane damaged cells were compared among vitrified groups and a control. There was no significant difference between the vitrified groups in survival, cell numbers and the extent of membrane damage. Vitrification increased the number of membrane-damaged cells in both groups, however, in a greater extent in the Vb group. Vitrification increased (p < .05) the expression of the HSP70 gene in Va but not in Vb embryos. The expression of IGF2R, SNRPN, HDAC1, DNMT3B, BAX, OCT4, and IFN-t genes were the same in control and vitrified groups. In conclusion, the concentration of cryoprotectants during equilibration did not affect survival rates; however, normal cell numbers could be maintained only by equilibration in 15% cryoprotectants which was associated with increased HSP70 expression.
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Affiliation(s)
- Thatawat Yodrug
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Rangsun Parnpai
- Embryo Technology and Stem Cell Research Center, School of Biotechnology, Suranaree University of Technology, Nakhon Ratchasima, Thailand
| | - Yuji Hirao
- Animal Breeding and Reproduction Research Division, Institute of Livestock and Grassland Science (NILGS), National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
| | - Tamás Somfai
- Animal Breeding and Reproduction Research Division, Institute of Livestock and Grassland Science (NILGS), National Agriculture and Food Research Organization (NARO), Tsukuba, Japan
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Khatun H, Egashira J, Sakatani M, Takenouchi N, Tatemoto H, Wada Y, Yamanaka KI. Sericin enhances the developmental competence of heat-stressed bovine embryos. Mol Reprod Dev 2018; 85:696-708. [DOI: 10.1002/mrd.23038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 06/23/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Hafiza Khatun
- Faculty of Agriculture; Saga University; Saga Japan
- Faculty of Animal Husbandry; Bangladesh Agricultural University; Mymensingh Bangladesh
- Animal Resource Production Division; The United Graduate School of Agricultural Sciences, Kagoshima University; Kagoshima Japan
| | - Junki Egashira
- Animal Resource Production Division; The United Graduate School of Agricultural Sciences, Kagoshima University; Kagoshima Japan
- Division of Cattle Research; Saga Prefectural Livestock Experiment Station; Saga Japan
| | - Miki Sakatani
- Livestock and Grassland Research Division; Kyushu Okinawa Agricultural Research Center, NARO; Kumamoto Japan
| | - Naoki Takenouchi
- Livestock and Grassland Research Division; Kyushu Okinawa Agricultural Research Center, NARO; Kumamoto Japan
| | - Hideki Tatemoto
- Animal Resource Production Division; The United Graduate School of Agricultural Sciences, Kagoshima University; Kagoshima Japan
- Faculty of Agriculture; University of the Ryukyus; Okinawa Japan
| | - Yasuhiko Wada
- Faculty of Agriculture; Saga University; Saga Japan
- Animal Resource Production Division; The United Graduate School of Agricultural Sciences, Kagoshima University; Kagoshima Japan
| | - Ken-ichi Yamanaka
- Faculty of Agriculture; Saga University; Saga Japan
- Animal Resource Production Division; The United Graduate School of Agricultural Sciences, Kagoshima University; Kagoshima Japan
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Sakai S, Hagihara N, Kuse M, Kimura K, Okuda K. Heat stress affects prostaglandin synthesis in bovine endometrial cells. J Reprod Dev 2018; 64:311-317. [PMID: 29710018 PMCID: PMC6105743 DOI: 10.1262/jrd.2018-051] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Heat stress (HS) negatively affects reproduction in cattle; however, its effect on endocrine function in bovine endometrial cells remains unclear. In this study, we examined the effects of HS on the production of prostaglandin (PG) E2 and PGF2α in the cultured bovine endometrial epithelial and stromal cells separately. To evaluate the effect of HS on endocrine function, the cells were cultured at 38.5°C (control) or 40.5°C (HS). After treatment, PGE2 and PGF2α levels were measured via enzyme immunoassay (EIA) and mRNA expressions of enzymes involved in PG synthesis were examined via quantitative reverse transcription polymerase chain reaction (RT-PCR). HS did not influence the production of PGE2 or PGF2α in the epithelial cells; however, HS significantly enhanced the production of both PGE2 and PGF2α in the stromal cells (P < 0.05). In addition, HS significantly increased phospholipase A2 (PLA2), cyclooxygenase 2 (COX2), prostaglandin F synthase (PGFS), prostaglandin E synthase (PGES), and carbonyl reductase 1 (CBR1) mRNA expression in the stromal cells (P < 0.05). The overall results suggest that HS induces mRNA expression of enzymes involved in PG synthesis, resulting in the upregulation of PGE2 and PGF2α production in the stromal cells, but not in the epithelial cells. The HS-induced increase of PGE2 and PGF2α secretion in bovine endometrial stromal cells may disrupt the normal estrous cycle and cause infertility in cows during summer.
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Affiliation(s)
- Shunsuke Sakai
- Laboratory of Reproductive Physiology, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Natsumi Hagihara
- Laboratory of Reproductive Physiology, Under Graduate School of Faculty of Agriculture, Okayama University, Okayama 700-8530, Japan
| | - Mariko Kuse
- Laboratory of Reproductive Physiology, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Koji Kimura
- Laboratory of Reproductive Physiology, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan
| | - Kiyoshi Okuda
- Laboratory of Reproductive Physiology, Graduate School of Environmental and Life Science, Okayama University, Okayama 700-8530, Japan.,Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan
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Stacey GN, Connon CJ, Coopman K, Dickson AJ, Fuller B, Hunt CJ, Kemp P, Kerby J, Man J, Matejtschuk P, Moore H, Morris J, Oreffo ROC, Slater N, Ward S, Wiggins C, Zimmermann H. Preservation and stability of cell therapy products: recommendations from an expert workshop. Regen Med 2017; 12:553-564. [DOI: 10.2217/rme-2017-0073] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
If the field of regenerative medicine is to deliver therapies, rapid expansion and delivery over considerable distances to large numbers of patients is needed. This will demand efficient stabilization and shipment of cell products. However, cryopreservation science is poorly understood by life-scientists in general and in recent decades only limited progress has been made in the technology of preservation and storage of cells. Rapid translation of new developments to a broader range of cell types will be vital, as will assuring a deeper knowledge of the fundamental cell biology relating to successful preservation and recovery of cell cultures. This report presents expert consensus on these and other issues which need to be addressed for more efficient delivery of cell therapies.
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Affiliation(s)
- Glyn N Stacey
- UK Stem Cell Bank, Division of Advanced Therapies, NIBSC, South Mimms, Hertfordshire, UK
| | - Che J Connon
- Institute of Genetic Medicine, University of Newcastle, Newcastle upon Tyne, UK
| | - Karen Coopman
- Chemical Engineering, Loughborough University, Loughborough, UK
| | - Alan J Dickson
- Manchester Institute of Biotechnology, University of Manchester, Manchester, UK
| | - Barry Fuller
- Department of Surgery, University College London, London, UK
| | - Charles J Hunt
- UK Stem Cell Bank, Division of Advanced Therapies, NIBSC, South Mimms, Hertfordshire, UK
| | - Paul Kemp
- Intercytex Ltd & HairClone, Manchester, UK
| | - Julie Kerby
- Cell Therapy Manufacturing Development, Pfizer, Cambridge, UK
| | - Jennifer Man
- UK Stem Cell Bank, Division of Advanced Therapies, NIBSC, South Mimms, Hertfordshire, UK
| | - Paul Matejtschuk
- Standardisation Science, National Institute for Biological Standards and Control (NIBSC) a centre of the MHRA, South Mimms, Hertfordshire, UK
| | - Harry Moore
- Department of Biomedical Sciences, University of Sheffield, Sheffield, UK
| | | | - Richard OC Oreffo
- Centre for Human Development, Stem Cells & Regeneration, University of Southampton, Southampton, UK
| | - Nigel Slater
- The Bioscience Engineering Group, University of Cambridge, Cambridge, UK
| | | | - Claire Wiggins
- National Health Service – Blood & Transplant, Watford, UK
| | - Heiko Zimmermann
- Fraunhofer-Institute for Biomedical Engineering, Sulzbach, Germany
- Department of Molecular & Cellular Biotechnology/Nanotechnology, Saarland University, Saarbrücken, Germany
- Department of Marine Sciences, Universidad Católica del Norte, Antafogasta/Coquimbo, Chile
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Abstract
Summer heat stress decreases the pregnancy rate in cattle and has been thought to be associated with the early embryonic death caused by the elevation of maternal body temperature. In vitro cultures have been widely used for the evaluation of effects of heat stress on oocytes, fertilization, preimplantation, and embryonic development. Susceptibility to heat stress is present in developmental stages from oocytes to cleavage-stage (before embryonic gene activation, EGA) embryos, leading to a consequent decrease in developmental competence. On the other hand, advanced-stage embryos such as morula or blastocysts have acquired thermotolerance. The mechanism for the developmental stage-dependent change in thermotolerance is considered to be the accumulation of antioxidants in embryos in response to heat-inducible production of reactive oxygen species. The supplementation of antioxidants to the culture media has been known to neutralize the detrimental effects of heat stress. Besides, EGA could be involved in acquisition of thermotolerance in later stages of embryos. Morulae or blastocysts can repair heat-induced unfolded proteins or prevent DNA damage occurring in processes such as apoptosis. Therefore, embryo transfer (ET) that can bypass the heat-sensitive stage could be a good solution to improve the pregnancy rate under heat stress. However, frozen-thawed ET could not improve the pregnancy rate as expected. Frozen-thawed blastocysts were more sensitive to heat stress and showed less proliferation upon heat exposure, compared to fresh blastocysts. Therefore, further research is required to improve the reduction in pregnancy rates due to summer heat stress.
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Affiliation(s)
- Miki Sakatani
- Livestock and Grassland Research Division, Kyushu Okinawa Agricultural Research Center, NARO, Kumamoto 861-1192, Japan
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