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Chen YZ, Wang WK, Yang YF, Cheng SY, Li LF, Shen H, Qi ZM, Liu Y. Acrolein exposure affects ovarian function by interfering with glycolysis and mitochondrial energy metabolism in mouse. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 361:124776. [PMID: 39173867 DOI: 10.1016/j.envpol.2024.124776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 08/16/2024] [Accepted: 08/19/2024] [Indexed: 08/24/2024]
Abstract
Acrolein is a widespread contaminant found in both diet and environment, entering the human body through food, alcohol, smoking, and exposure to fuel combustion fumes. While prior studies have highlighted acrolein's harmful impact on oocyte quality and early embryonic development in vitro, the specific mechanisms by which acrolein affects the female reproductive system in vivo remain poorly understood. This study first confirmed that in vitro acrolein exposure disrupts spindle morphology and chromosome alignment during the mid-MI stage of oocyte development, thus hindering oocyte maturation. Besides, exposure to acrolein not only stunts growth in mice but also impairs ovarian development, decreases the ovarian coefficient, disrupts follicular development, and increases the count of atretic follicles in vivo. Additional research has shown that acrolein exposure reduces the activity of key enzymes in glycolysis, pyruvate metabolism, and the tricarboxylic acid cycle within the ovaries. It also suppresses mitochondrial complex expression and disturbs the balance between mitochondrial fission and fusion, as confirmed by metabolomic analyses. Moreover, acrolein exposure in vivo induced granulosa cell apoptosis and reduced oocyte number. In summary, acrolein exposure impairs glucose metabolism and induces mitochondrial dysfunction in the ovaries.
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Affiliation(s)
- Yan-Zhu Chen
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Wen-Ke Wang
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yi-Fan Yang
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Si-Yao Cheng
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Lin-Feng Li
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Hao Shen
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Zhi-Min Qi
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China
| | - Yu Liu
- Medical College, Guangxi University, Nanning, Guangxi, 530004, China.
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Zhou D, Liu H, Zheng L, Liu A, Zhuan Q, Luo Y, Zhou G, Meng L, Hou Y, Wu G, Li J, Fu X. Metformin alleviates cryoinjuries in porcine oocytes by reducing membrane fluidity through the suppression of mitochondrial activity. Commun Biol 2024; 7:925. [PMID: 39090373 PMCID: PMC11294456 DOI: 10.1038/s42003-024-06631-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 07/24/2024] [Indexed: 08/04/2024] Open
Abstract
Plasma membrane damage in vitrified oocytes is closely linked to mitochondrial dysfunction. However, the mechanism underlying mitochondria-regulated membrane stability is not elucidated. A growing body of evidence indicates that mitochondrial activity plays a pivotal role in cell adaptation. Since mitochondria work at a higher temperature than the constant external temperature of the cell, we hypothesize that suppressing mitochondrial activity would protect oocytes from extreme stimuli during vitrification. Here we show that metformin suppresses mitochondrial activity by reducing mitochondrial temperature. In addition, metformin affects the developmental potential of oocytes and improves the survival rate after vitrification. Transmission electron microscopy results show that mitochondrial abnormalities are markedly reduced in vitrified oocytes pretreated with metformin. Moreover, we find that metformin transiently inhibits mitochondrial activity. Interestingly, metformin pretreatment decreases cell membrane fluidity after vitrification. Furthermore, transcriptome results demonstrate that metformin pretreatment modulates the expression levels of genes involved in fatty acid elongation process, which is further verified by the increased long-chain saturated fatty acid contents in metformin-pretreated vitrified oocytes by lipidomic profile analysis. In summary, our study indicates that metformin alleviates cryoinjuries by reducing membrane fluidity via mitochondrial activity regulation.
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Affiliation(s)
- Dan Zhou
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Hongyu Liu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lv Zheng
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Aiju Liu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Qingrui Zhuan
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yuwen Luo
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Guizhen Zhou
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lin Meng
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Yunpeng Hou
- State Key Laboratory of Animal Biotech Breeding, College of Biological Sciences, China Agricultural University, Beijing, China
| | - Guoquan Wu
- Yunnan Provincial Engineering Laboratory of Animal Genetic Resource Conservation and Germplasm Enhancement, Yunnan Animal Science and Veterinary Institute, Kunming, China
| | - Jun Li
- Department of Reproductive Medicine, Reproductive Medical Center, The First Hospital of Hebei Medical University, Shijiazhuang, China.
| | - Xiangwei Fu
- National Engineering Laboratory for Animal Breeding, Key Laboratory of Animal Genetics, Breeding and Reproduction of the MARA, Beijing Key Laboratory for Animal Genetic Improvement, State Key Laboratory of Animal Biotech Breeding, College of Animal Science and Technology, China Agricultural University, Beijing, China.
- State Key Laboratory of Sheep Genetic Improvement and Healthy Breeding, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, China.
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Tando Y, Matsui Y. Inheritance of environment-induced phenotypic changes through epigenetic mechanisms. ENVIRONMENTAL EPIGENETICS 2023; 9:dvad008. [PMID: 38094661 PMCID: PMC10719065 DOI: 10.1093/eep/dvad008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/09/2023] [Accepted: 11/20/2023] [Indexed: 03/08/2024]
Abstract
Growing evidence suggests that epigenetic changes through various parental environmental factors alter the phenotypes of descendants in various organisms. Environmental factors, including exposure to chemicals, stress and abnormal nutrition, affect the epigenome in parental germ cells by different epigenetic mechanisms, such as DNA methylation, histone modification as well as small RNAs via metabolites. Some current remaining questions are the causal relationship between environment-induced epigenetic changes in germ cells and altered phenotypes of descendants, and the molecular basis of how the abnormal epigenetic changes escape reprogramming in germ cells. In this review, we introduce representative examples of intergenerational and transgenerational inheritance of phenotypic changes through parental environmental factors and the accompanied epigenetic and metabolic changes, with a focus on animal species. We also discuss the molecular mechanisms of epigenomic inheritance and their possible biological significance.
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Affiliation(s)
- Yukiko Tando
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Miyagi 980-8575, Japan
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Miyagi 980-8575, Japan
| | - Yasuhisa Matsui
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer, Tohoku University, Sendai, Miyagi 980-8575, Japan
- Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi 980-8577, Japan
- Graduate School of Medicine, Tohoku University, Sendai, Miyagi 980-8575, Japan
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Hayashi Y, Tando Y, Ito‐Matsuoka Y, Ikuta K, Takehara A, Morino K, Maegawa H, Matsui Y. Nutritional and metabolic control of germ cell fate through O-GlcNAc regulation. EMBO Rep 2023; 24:e56845. [PMID: 37842859 PMCID: PMC10626443 DOI: 10.15252/embr.202356845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 09/14/2023] [Accepted: 09/18/2023] [Indexed: 10/17/2023] Open
Abstract
Fate determination of primordial germ cells (PGCs) is regulated in a multi-layered manner, involving signaling pathways, epigenetic mechanisms, and transcriptional control. Chemical modification of macromolecules, including epigenetics, is expected to be closely related with metabolic mechanisms but the detailed molecular machinery linking these two layers remains poorly understood. Here, we show that the hexosamine biosynthetic pathway controls PGC fate determination via O-linked β-N-acetylglucosamine (O-GlcNAc) modification. Consistent with this model, reduction of carbohydrate metabolism via a maternal ketogenic diet that decreases O-GlcNAcylation levels causes repression of PGC formation in vivo. Moreover, maternal ketogenic diet intake until mid-gestation affects the number of ovarian germ cells in newborn pups. Taken together, we show that nutritional and metabolic mechanisms play a previously unappreciated role in PGC fate determination.
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Affiliation(s)
- Yohei Hayashi
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer (IDAC)Tohoku UniversitySendaiJapan
- Graduate School of Life SciencesTohoku UniversitySendaiJapan
- Graduate School of MedicineTohoku UniversitySendaiJapan
| | - Yukiko Tando
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer (IDAC)Tohoku UniversitySendaiJapan
- Graduate School of Life SciencesTohoku UniversitySendaiJapan
- Graduate School of MedicineTohoku UniversitySendaiJapan
| | - Yumi Ito‐Matsuoka
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer (IDAC)Tohoku UniversitySendaiJapan
| | - Kaho Ikuta
- School of MedicineTohoku UniversitySendaiJapan
| | - Asuka Takehara
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer (IDAC)Tohoku UniversitySendaiJapan
| | - Katsutaro Morino
- Department of MedicineShiga University of Medical ScienceOtsuJapan
| | - Hiroshi Maegawa
- Department of MedicineShiga University of Medical ScienceOtsuJapan
| | - Yasuhisa Matsui
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer (IDAC)Tohoku UniversitySendaiJapan
- Graduate School of Life SciencesTohoku UniversitySendaiJapan
- Graduate School of MedicineTohoku UniversitySendaiJapan
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Zhu Q, Li Y, Ma J, Ma H, Liang X. Potential factors result in diminished ovarian reserve: a comprehensive review. J Ovarian Res 2023; 16:208. [PMID: 37880734 PMCID: PMC10598941 DOI: 10.1186/s13048-023-01296-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 10/07/2023] [Indexed: 10/27/2023] Open
Abstract
The ovarian reserve is defined as the quantity of oocytes stored in the ovary or the number of oocytes that can be recruited. Ovarian reserve can be affected by many factors, including hormones, metabolites, initial ovarian reserve, environmental problems, diseases, and medications, among others. With the trend of postponing of pregnancy in modern society, diminished ovarian reserve (DOR) has become one of the most common challenges in current clinical reproductive medicine. Attributed to its unclear mechanism and complex clinical features, it is difficult for physicians to administer targeted treatment. This review focuses on the factors associated with ovarian reserve and discusses the potential influences and pathogenic factors that may explain the possible mechanisms of DOR, which can be improved or built upon by subsequent researchers to verify, replicate, and establish further study findings, as well as for scientists to find new treatments.
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Affiliation(s)
- Qinying Zhu
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Yi Li
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Jianhong Ma
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Hao Ma
- The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Xiaolei Liang
- Department of Obstetrics and Gynecology, Key Laboratory for Gynecologic Oncology Gansu Province, The First Hospital of Lanzhou University, No.1, Donggangxi Rd, Chengguan District, 730000, Lanzhou, China.
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Lucia Dos Santos Silva R, de Sousa Barberino R, Tavares de Matos MH. Impact of antioxidant supplementation during in vitro culture of ovarian preantral follicles: A review. Theriogenology 2023; 207:110-122. [PMID: 37290274 DOI: 10.1016/j.theriogenology.2023.05.027] [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: 02/15/2023] [Revised: 05/10/2023] [Accepted: 05/27/2023] [Indexed: 06/10/2023]
Abstract
The in vitro culture systems of ovarian preantral follicles have been developed for studying follicular and oocyte growth, for future use of immature oocytes as sources of fertilizable oocytes and for screening ovarian toxic substances. One of the key limitations of the in vitro culture of preantral follicles is the oxidative stress by accumulation of reactive oxygen species (ROS), which can impair follicular development and oocyte quality. Several factors are associated with oxidative stress in vitro, which implies the need for a rigorous control of the conditions as well as addition of antioxidant agents to the culture medium. Antioxidant supplementation can minimize or eliminate the damage caused by ROS, supporting follicular survival and development and producing mature oocytes competent for fertilization. This review focuses on the use of antioxidants and their role in preventing follicular damage caused by oxidative stress in the in vitro culture of preantral follicles.
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Affiliation(s)
- Regina Lucia Dos Santos Silva
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-900, Petrolina, PE, Brazil
| | - Ricássio de Sousa Barberino
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-900, Petrolina, PE, Brazil
| | - Maria Helena Tavares de Matos
- Nucleus of Biotechnology Applied to Ovarian Follicle Development, Federal University of São Francisco Valley, 56300-900, Petrolina, PE, Brazil.
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Hao Y, Wang J, Ren J, Liu Z, Bai Z, Liu G, Dai Y. Effect of dimethyl alpha-ketoglutarate supplementation on the in vitro developmental competences of ovine oocytes. Theriogenology 2022; 184:171-184. [DOI: 10.1016/j.theriogenology.2022.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 02/19/2022] [Accepted: 03/14/2022] [Indexed: 10/18/2022]
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Hayashi Y, Matsui Y. Metabolic Control of Germline Formation and Differentiation in Mammals. Sex Dev 2022:1-16. [PMID: 35086109 PMCID: PMC10389803 DOI: 10.1159/000520662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 10/27/2021] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND The germ cell lineage involves dynamic epigenetic changes during its formation and differentiation that are completely different from those of the somatic cell lineage. Metabolites and metabolic pathways have been reported as key factors related to the regulation of epigenetics as cofactors and substrates. However, our knowledge about the metabolic characteristics of germ cells, especially during the fetal stage, and their transition during differentiation is quite limited due to the rarity of the cells. Nevertheless, recent developments in omics technologies have made it possible to extract comprehensive metabolomic features of germ cells. SUMMARY In this review, we present the latest researches on the metabolic properties of germ cells in 4 stages: primordial germ cell specification, fetal germ cell differentiation, spermatogenesis, and oogenesis. At every stage, extensive published data has been accumulated on energy metabolism, and it is possible to describe its changes during germ cell differentiation in detail. As pluripotent stem cells differentiate into germ cells, energy metabolism shifts from glycolysis to oxidative phosphorylation; however, in spermatogenesis, glycolytic pathways are also temporarily dominant in spermatogonial stem cells. Although the significance of metabolic pathways other than energy metabolism in germ cell differentiation is largely unknown, the relation of the pentose phosphate pathway and Ser-Gly-one-carbon metabolism with germ cell properties has been suggested at various stages. We further discuss the relationship between these characteristic metabolic pathways and epigenetic regulation during germ cell specification and differentiation. Finally, the relevance of dietary and supplemental interventions on germ cell function and epigenomic regulation is also discussed. Key Messages: Comprehensive elucidation of metabolic features and metabolism-epigenome crosstalk in germ cells is important to reveal how the characteristic metabolic pathways are involved in the germ cell regulation. The accumulation of such insights would lead to suggestions for optimal diets and supplements to maintain reproductive health through modulating metabolic and epigenetic status of germ cells.
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Affiliation(s)
- Yohei Hayashi
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan.,Graduate School of Life Sciences, Tohoku University, Sendai, Japan.,Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yasuhisa Matsui
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Sendai, Japan.,Graduate School of Life Sciences, Tohoku University, Sendai, Japan.,Graduate School of Medicine, Tohoku University, Sendai, Japan
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Matsui Y, Hayashi Y. Metabolic pathways regulating the development and non-genomic heritable traits of germ cells. J Reprod Dev 2021; 68:96-103. [PMID: 34955463 PMCID: PMC8979796 DOI: 10.1262/jrd.2021-137] [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] [Indexed: 11/23/2022] Open
Abstract
Metabolism is an important cellular process necessary not only for producing energy and building blocks for cells, but also for regulating various cell functions, including intracellular
signaling, epigenomic effects, and transcription. The regulatory roles of metabolism have been extensively studied in somatic cells, including stem cells and cancer cells, but data regarding
germ cells are limited. Because germ cells produce individuals of subsequent generations, understanding the role of metabolism and its regulatory functions in germ cells is important.
Although limited information concerning the specific role of metabolism in germ cells is available, recent advances in related research have revealed specific metabolic states of
undifferentiated germ cells in embryos as well as in germ cells undergoing oogenesis and spermatogenesis. Studies have also elucidated the functions of some metabolic pathways associated
with germ cell development and the non-genomic heritable machinery of germ cells. In this review, we summarized all the available knowledge on the characteristic metabolic pathways in germ
cells, focusing on their regulatory functions, while discussing the issues that need to be addressed to enhance the understanding of germ cell metabolism.
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Affiliation(s)
- Yasuhisa Matsui
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Miyagi 980-8575, Japan.,Graduate School of Life Sciences, Tohoku University, Miyagi 980-8577, Japan.,Graduate School of Medicine, Tohoku University, Miyagi 980-8575, Japan
| | - Yohei Hayashi
- Cell Resource Center for Biomedical Research, Institute of Development, Aging and Cancer (IDAC), Tohoku University, Miyagi 980-8575, Japan.,Graduate School of Life Sciences, Tohoku University, Miyagi 980-8577, Japan.,Graduate School of Medicine, Tohoku University, Miyagi 980-8575, Japan
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