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Clark HM, Stokes AE, Edwards JL, Payton RR, Schrick FN, Campagna SR, Sarumi Q, Hessock EA, Roberts SR, Azaridolatabad N, Moorey SE. Impact of preovulatory follicle maturity on oocyte metabolism and embryo development. PNAS NEXUS 2024; 3:pgae181. [PMID: 38752021 PMCID: PMC11095542 DOI: 10.1093/pnasnexus/pgae181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 04/17/2024] [Indexed: 05/18/2024]
Abstract
Improved oocyte competence for embryo development and pregnancy was observed following ovulation of preovulatory follicles with greater physiological maturity, as indicated by estradiol production, prior to the gonadotropin-releasing hormone (GnRH)-induced luteinizing hormone (LH) surge. It was hypothesized that follicular fluid from preovulatory follicles of greater maturity better supports the maturing oocyte's metabolic requirements and improves embryo development. The objective was to determine if differences in preovulatory follicular fluid due to follicle maturity influence oocyte metabolism during in vitro maturation (IVM) and affect embryo development. Bovine preovulatory follicular fluid was collected 18 h after a GnRH-induced LH surge. Serum estradiol concentration at GnRH administration categorized follicles as greater or lesser maturity. Immature bovine oocytes were submitted to 24 h IVM in medium supplemented with 20% follicular fluid from preovulatory follicles of greater or lesser maturity. Embryo development was recorded. Oocyte maturation media and media conditioned by developing embryos were submitted for metabolomics. A randomized block design was utilized to determine differences in embryo development and media metabolites (P ≤ 0.05). Blastocysts from oocytes matured in greater vs. lesser maturity follicular fluid had a more moderate rate of development (P = 0.01). At the conclusion of 24 h IVM, abundance of 66 metabolites differed between greater and lesser follicle maturity treatments. Nine metabolites differed in media conditioned by developing embryos. Metabolome results suggest improved amino acid, purine, and glucose metabolism, followed by a more efficient rate of embryo development, in oocytes matured in greater vs lesser maturity follicular fluid.
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Affiliation(s)
- Hannah M Clark
- Department of Animal Science, University of Tennessee Institute of Agriculture and AgResearch, 2506 River Drive, Knoxville, TN 37996, USA
| | - Allyson E Stokes
- Department of Animal Science, University of Tennessee Institute of Agriculture and AgResearch, 2506 River Drive, Knoxville, TN 37996, USA
| | - J Lannett Edwards
- Department of Animal Science, University of Tennessee Institute of Agriculture and AgResearch, 2506 River Drive, Knoxville, TN 37996, USA
| | - Rebecca R Payton
- Department of Animal Science, University of Tennessee Institute of Agriculture and AgResearch, 2506 River Drive, Knoxville, TN 37996, USA
| | - F Neal Schrick
- Department of Animal Science, University of Tennessee Institute of Agriculture and AgResearch, 2506 River Drive, Knoxville, TN 37996, USA
| | - Shawn R Campagna
- Department of Chemistry, University of Tennessee, 1420 Circle Dr., Knoxville, TN 37996, USA
| | - Qudus Sarumi
- Department of Chemistry, University of Tennessee, 1420 Circle Dr., Knoxville, TN 37996, USA
| | - Emma A Hessock
- Department of Animal Science, University of Tennessee Institute of Agriculture and AgResearch, 2506 River Drive, Knoxville, TN 37996, USA
| | - Samantha R Roberts
- Department of Animal Science, University of Tennessee Institute of Agriculture and AgResearch, 2506 River Drive, Knoxville, TN 37996, USA
| | - Nima Azaridolatabad
- Department of Animal Science, University of Tennessee Institute of Agriculture and AgResearch, 2506 River Drive, Knoxville, TN 37996, USA
| | - Sarah E Moorey
- Department of Animal Science, University of Tennessee Institute of Agriculture and AgResearch, 2506 River Drive, Knoxville, TN 37996, USA
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Liu M, Ding Z, Sun P, Zhou S, Wu H, Huo L, Yang L, Davis JS, Liang A. Neddylation inhibition affects early embryonic development by disrupting maternal-to-zygotic transition and mitochondrial function in mice. Theriogenology 2024; 220:1-11. [PMID: 38457854 DOI: 10.1016/j.theriogenology.2024.02.029] [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: 10/01/2023] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/10/2024]
Abstract
Post-translational modifications (PTMs) are critical for early development in mice because early cleavage-stage embryos are characterized by transcriptional inactivity. Neddylation is an important ubiquitin-like PTM that regulates multiple biophysical processes. However, the exact roles of neddylation in regulating early embryonic development remain largely unknown. In the present study, we found that inhibition of neddylation by specific inhibitor MLN4924 led to severe arrest of early embryonic development. Transcriptomic analysis showed that neddylation inhibition changed the expression of 3959 genes at the 2-cell stage. Importantly, neddylation inhibition blocked zygotic genome activation and maternal mRNA degradation, thus disrupting the maternal-to-zygotic transition. Moreover, inhibition of neddylation induced mitochondrial dysfunction including aberrant mitochondrial distribution, decreased mitochondrial membrane potential, and reduced ATP content. Further analysis showed that inhibition of neddylation resulted in the accumulation of reactive oxygen species and superoxide anion, thereby resulting in oxidative stress and severe DNA damage at the 2-cell stage. Overall, this study demonstrates that neddylation is vital for early embryonic development in mice. Our findings suggest that proper neddylation regulation is essential for the timely inter-stage transition during early embryonic development.
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Affiliation(s)
- Mingxiao Liu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Zhiming Ding
- Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, PR China; NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract, Anhui Medical University, Hefei, 230032, PR China
| | - Peihao Sun
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Shuo Zhou
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Hanxiao Wu
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China
| | - Lijun Huo
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China; Frontiers Science Center for Animal Breeding and Sustainable Production (Huazhong Agricultural University), Ministry of Education, Wuhan, 430070, PR China
| | - Liguo Yang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China; Frontiers Science Center for Animal Breeding and Sustainable Production (Huazhong Agricultural University), Ministry of Education, Wuhan, 430070, PR China
| | - John S Davis
- Olson Center for Women's Health, Department of Obstetrics and Gynecology, University of Nebraska Medical Center, and Veterans Affairs Medical Center, Omaha, NE, 68198, USA
| | - Aixin Liang
- Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan, 430070, PR China; Frontiers Science Center for Animal Breeding and Sustainable Production (Huazhong Agricultural University), Ministry of Education, Wuhan, 430070, PR China.
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Awonuga AO, Camp OG, Abu-Soud HM. A review of nitric oxide and oxidative stress in typical ovulatory women and in the pathogenesis of ovulatory dysfunction in PCOS. Reprod Biol Endocrinol 2023; 21:111. [PMID: 37996893 PMCID: PMC10666387 DOI: 10.1186/s12958-023-01159-6] [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: 07/06/2023] [Accepted: 11/05/2023] [Indexed: 11/25/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) is a heterogeneous functional endocrine disorder associated with a low-grade, chronic inflammatory state. Patients with PCOS present an increased risk of metabolic comorbidities and often menstrual dysregulation and infertility due to anovulation and/or poor oocyte quality. Multiple mechanisms including oxidative stress and low-grade inflammation are believed to be responsible for oocyte deterioration; however, the influence of nitric oxide (NO) insufficiency in oocyte quality and ovulatory dysfunction in PCOS is still a matter for debate. Higher production of superoxide (O2•-) mediated DNA damage and impaired antioxidant defense have been implicated as contributory factors for the development of PCOS, with reported alteration in superoxide dismutase (SOD) function, an imbalanced zinc/copper ratio, and increased catalase activity. These events may result in decreased hydrogen peroxide (H2O2) accumulation with increased lipid peroxidation events. A decrease in NO, potentially due to increased activity of NO synthase (NOS) inhibitors such as asymmetric dimethylarginine (ADMA), and imbalance in the distribution of reactive oxygen species (ROS), such as decreased H2O2 and increased O2•-, may offset the physiological processes surrounding follicular development, oocyte maturation, and ovulation contributing to the reproductive dysfunction in patients with PCOS. Thus, this proposal aims to evaluate the specific roles of NO, oxidative stress, ROS, and enzymatic and nonenzymatic elements in the pathogenesis of PCOS ovarian dysfunction, including oligo- anovulation and oocyte quality, with the intent to inspire better application of therapeutic options. The authors believe more consideration into the specific roles of oxidative stress, ROS, and enzymatic and nonenzymatic elements may allow for a more thorough understanding of PCOS. Future efforts elaborating on the role of NO in the preoptic nucleus to determine its influence on GnRH firing and follicle-stimulating hormone/Luteinizing hormone (FSH/LH) production with ovulation would be of benefit in PCOS. Consequently, treatment with an ADMA inhibitor or NO donor may prove beneficial to PCOS patients experiencing reproductive dysfunction and infertility.
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Affiliation(s)
- Awoniyi O Awonuga
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock Detroit, Detroit, MI, 48201, USA.
| | - Olivia G Camp
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock Detroit, Detroit, MI, 48201, USA
| | - Husam M Abu-Soud
- Departments of Obstetrics and Gynecology and Biochemistry and Molecular Biology, The C.S. Mott Center for Human Growth and Development, Wayne State University School of Medicine, 275 E. Hancock Detroit, Detroit, MI, 48201, USA
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI, 48201, USA
- Department of Microbiology, Immunology and Biochemistry, Wayne State University School of Medicine, Detroit, MI, 48201, USA
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Bi F, Xiang H, Li J, Sun J, Wang N, Gao W, Sun M, Huan Y. Astaxanthin enhances the development of bovine cloned embryos by inhibiting apoptosis and improving DNA methylation reprogramming of pluripotency genes. Theriogenology 2023; 209:193-201. [PMID: 37423043 DOI: 10.1016/j.theriogenology.2023.06.033] [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: 04/02/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/11/2023]
Abstract
Low cloning efficiency limits the wide application of somatic cell nuclear transfer technology. Apoptosis and incomplete DNA methylation reprogramming of pluripotency genes are considered as the main causes for low cloning efficiency. Astaxanthin (AST), a powerfully antioxidative and antiapoptotic carotenoid, is recently shown to improve the development of early embryos, however, the potential role of AST during the development of cloned embryos remains unclear. This study displayed that treating cloned embryos with AST significantly increased the blastocyst rate and total blastocyst cell number in a concentration dependent manner, and also alleviated the damage of H2O2 to the development of cloned embryos. In addition, compared with the control group, AST significantly reduced the apoptotic cell number and rate in cloned blastocysts, and the significantly upregulated expression of anti-apoptotic gene Bcl2l1 and antioxidative genes (Sod1 and Gpx4) and downregulated transcription of pro-apoptotic genes (Bax, P53 and Caspase3) were observed in the AST group. Moreover, AST treatment facilitated DNA demethylation of pluripotency genes (Pou5f1, Nanog and Sox2), in accompany with the improved transcription levels of DNA methylation reprogramming genes (Tet1, Tet3, Dnmt1, Dnmt3a and Dnmt3b) in cloned embryos, and then, the significantly upregulated expression levels of embryo development related genes including Pou5f1, Nanog, Sox2 and Cdx2 were observed in comparison with the control group. In conclusion, these results revealed that astaxanthin enhanced the developmental potential of bovine cloned embryos by inhibiting apoptosis and improving DNA methylation reprogramming of pluripotency genes, and provided a promising approach to improve cloning efficiency.
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Affiliation(s)
- Fanglong Bi
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, China
| | - Hongxiao Xiang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, China
| | - Jian Li
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, China
| | - Jianqiang Sun
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, China
| | - Ning Wang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, China
| | - Wenju Gao
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, China
| | - Mingju Sun
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, China
| | - Yanjun Huan
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, Shandong Province, China.
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Reiter RJ, Sharma R, Romero A, Manucha W, Tan DX, Zuccari DAPDC, Chuffa LGDA. Aging-Related Ovarian Failure and Infertility: Melatonin to the Rescue. Antioxidants (Basel) 2023; 12:antiox12030695. [PMID: 36978942 PMCID: PMC10045124 DOI: 10.3390/antiox12030695] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/05/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023] Open
Abstract
Aging has a major detrimental effect on the optimal function of the ovary with changes in this organ preceding the age-related deterioration in other tissues, with the middle-aged shutdown leading to infertility. Reduced fertility and consequent inability to conceive by women in present-day societies who choose to have children later in life leads to increased frustration. Melatonin is known to have anti-aging properties related to its antioxidant and anti-inflammatory actions. Its higher follicular fluid levels relative to blood concentrations and its likely synthesis in the oocyte, granulosa, and luteal cells suggest that it is optimally positioned to interfere with age-associated deterioration of the ovary. Additionally, the end of the female reproductive span coincides with a significant reduction in endogenous melatonin levels. Thus, the aims are to review the literature indicating melatonin production in mitochondria of oocytes, granulosa cells, and luteal cells, identify the multiple processes underlying changes in the ovary, especially late in the cessation of the reproductive life span, summarize the physiological and molecular actions of melatonin in the maintenance of normal ovaries and in the aging ovaries, and integrate the acquired information into an explanation for considering melatonin in the treatment of age-related infertility. Use of supplemental melatonin may help preserve fertility later in life and alleviate frustration in women delaying childbearing age, reduce the necessity of in vitro fertilization–embryo transfer (IVF-ET) procedures, and help solve the progressively increasing problem of non-aging-related infertility in women throughout their reproductive life span. While additional research is needed to fully understand the effects of melatonin supplementation on potentially enhancing fertility, studies published to date suggest it may be a promising option for those struggling with infertility.
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Affiliation(s)
- Russel J. Reiter
- Department of Cell Systems and Anatomy, Joe R and Teresa Lozano Long School of Medicine, UT Health San Antonio, San Antonio, TX 78229, USA
- Correspondence: (R.J.R.); (A.R.); Tel.: +1-210-567-3859 (R.J.R.); +34-91-3943970 (A.R.)
| | - Ramaswamy Sharma
- Department of Cell Systems and Anatomy, Joe R and Teresa Lozano Long School of Medicine, UT Health San Antonio, San Antonio, TX 78229, USA
| | - Alejandro Romero
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain
- Correspondence: (R.J.R.); (A.R.); Tel.: +1-210-567-3859 (R.J.R.); +34-91-3943970 (A.R.)
| | - Walter Manucha
- Instituto de Medicina y Biologia Experimental de Cuyo (IMBECU), Consejo Nacional de Investigaciones Cientificas y Tecnologicas (CONICET), Mendoza 5500, Argentina
| | - Dun-Xian Tan
- Department of Cell Systems and Anatomy, Joe R and Teresa Lozano Long School of Medicine, UT Health San Antonio, San Antonio, TX 78229, USA
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Ra K, Park SC, Lee BC. Female Reproductive Aging and Oxidative Stress: Mesenchymal Stem Cell Conditioned Medium as a Promising Antioxidant. Int J Mol Sci 2023; 24:ijms24055053. [PMID: 36902477 PMCID: PMC10002910 DOI: 10.3390/ijms24055053] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/16/2023] [Accepted: 03/05/2023] [Indexed: 03/09/2023] Open
Abstract
The recent tendency to delay pregnancy has increased the incidence of age-related infertility, as female reproductive competence decreases with aging. Along with aging, a lowered capacity of antioxidant defense causes a loss of normal function in the ovaries and uterus due to oxidative damage. Therefore, advancements have been made in assisted reproduction to resolve infertility caused by reproductive aging and oxidative stress, following an emphasis on their use. The application of mesenchymal stem cells (MSCs) with intensive antioxidative properties has been extensively validated as a regenerative therapy, and proceeding from original cell therapy, the therapeutic effects of stem cell conditioned medium (CM) containing paracrine factors secreted during cell culture have been reported to be as effective as that of direct treatment of source cells. In this review, we summarized the current understanding of female reproductive aging and oxidative stress and present MSC-CM, which could be developed as a promising antioxidant intervention for assisted reproductive technology.
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Affiliation(s)
- Kihae Ra
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea
| | - Se Chang Park
- Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
- Correspondence: (S.C.P.); (B.C.L.)
| | - Byeong Chun Lee
- Department of Theriogenology and Biotechnology, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea
- Correspondence: (S.C.P.); (B.C.L.)
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7
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Biomarkers of oxidative stress and reproductive complications. Adv Clin Chem 2023; 113:157-233. [PMID: 36858646 DOI: 10.1016/bs.acc.2022.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Oxidative stress is the result of an imbalance between the formation of reactive oxygen species (ROS) and the levels of enzymatic and non-enzymatic antioxidants. The assessment of biological redox status is performed by the use of oxidative stress biomarkers. An oxidative stress biomarker is defined as any physical structure or process or chemical compound that can be assessed in a living being (in vivo) or in solid or fluid parts thereof (in vitro), the determination of which is a reproducible and reliable indicator of oxidative stress. The use of oxidative stress biomarkers allows early identification of the risk of developing diseases associated with this process and also opens up possibilities for new treatments. At the end of the last century, interest in oxidative stress biomarkers began to grow, due to evidence of the association between the generation of free radicals and various pathologies. Up to now, a significant number of studies have been carried out to identify and apply different oxidative stress biomarkers in clinical practice. Among the most important oxidative stress biomarkers, it can be mentioned the products of oxidative modifications of lipids, proteins, nucleic acids, and uric acid as well as the measurement of the total antioxidant capacity of fluids in the human body. In this review, we aim to present recent advances and current knowledge on the main biomarkers of oxidative stress, including the discovery of new biomarkers, with emphasis on the various reproductive complications associated with variations in oxidative stress levels.
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Impact of the number of retrieved oocytes on IVF outcomes: oocyte maturation, fertilization, embryo quality and implantation rate. ZYGOTE 2023; 31:91-96. [PMID: 36533391 DOI: 10.1017/s096719942200065x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The process of oocyte retrieval represents a key phase during the cycles of in vitro fertilization (IVF). It involves controlled ovarian stimulation to retrieve the highest number of oocytes possible. According to many previous studies, the higher the number of oocytes the higher the chances of obtaining embryos for multiple transfers. In this study, in total, 1987 patients were retrospectively reviewed to investigate the correlations between the number of retrieved oocytes and the subsequent IVF outcomes. Patients were divided into three groups according to the number of retrieved oocytes (Group 1: ≤5 oocytes; Group 2: 6-15 oocytes; Group 3: ≥15 oocytes). The results showed a significant negative correlation between oocyte number and maturation rate as well as fertilization rate. However, a significant positive correlation was found between oocyte number and the blastulation rate. The implantation rate after fresh embryo transfers was higher in group 2 (6-15 oocytes) compared with group 1 (≤5 oocytes). According to our findings, we conclude that oocyte numbers between 6 and 15 oocytes can result in the highest chances of positive IVF outcomes in terms of embryo quality and fresh embryo transfers with lower risks of ovarian hyperstimulation.
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Muacevic A, Adler JR, Utlu E, Güvey H, Kahyaoğlu İ, Neşelioğlu S, Erel Ö, Akar S, Engin-Üstün Y. Serum and Follicular Fluid Thiol/Disulfide Homeostasis in Diminished Ovarian Reserve Patients Undergoing In Vitro Fertilization/Intracytoplasmic Sperm Injection Treatment. Cureus 2023; 15:e35476. [PMID: 36855584 PMCID: PMC9968409 DOI: 10.7759/cureus.35476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/26/2023] [Indexed: 02/27/2023] Open
Abstract
INTRODUCTION The etiologies of diminished ovarian reserve (DOR) are still poorly understood, and many factors such as age, autoimmunity, genetics, idiopathicity, iatrogenesis, and oxidative stress (OS) play a role. Oxidative cellular damage increases following reactive oxygen species (ROS)-induced aging. This is the first study to evaluate the serum and follicular fluid (FF) thiol/disulfide homeostasis in patients under 35 years of age with DOR undergoing in vitro fertilization (IVF)/intracytoplasmic sperm injection (ICSI). METHODS In this study, DOR was defined by the Poseidon criteria, and Poseidon group 3 women were selected as the study group (n = 40). The control group was composed of patients with the diagnosis of mild-moderate male factor infertility (n = 30). RESULTS The FF and serum native and total thiol levels, the markers of the antioxidant system, were significantly decreased in the DOR group compared with the control group (p = 0.021) (p = 0.037) (p = 0.029) (p = 0.04). On the other hand, we found no significant differences in the oxidant parameters between the groups (p > 0.05). CONCLUSIONS An intrinsic deficiency of antioxidants can play an important role in the etiology of DOR. The dietary addition of antioxidants could be beneficial in DOR patients.
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Deluao JC, Winstanley Y, Robker RL, Pacella-Ince L, Gonzalez MB, McPherson NO. OXIDATIVE STRESS AND REPRODUCTIVE FUNCTION: Reactive oxygen species in the mammalian pre-implantation embryo. Reproduction 2022; 164:F95-F108. [PMID: 36111646 DOI: 10.1530/rep-22-0121] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 09/15/2022] [Indexed: 11/08/2022]
Abstract
In brief Reactive oxygen species are generated throughout the pre-implantation period and are necessary for normal embryo formation. However, at pathological levels, they result in reduced embryo viability which can be mediated through factors delivered by sperm and eggs at conception or from the external environment. Abstract Reactive oxygen species (ROS) occur naturally in pre-implantation embryos as a by-product of ATP generation through oxidative phosphorylation and enzymes such as NADPH oxidase and xanthine oxidase. Biological concentrations of ROS are required for crucial embryonic events such as pronuclear formation, first cleavage and cell proliferation. However, high concentrations of ROS are detrimental to embryo development, resulting in embryo arrest, increased DNA damage and modification of gene expression leading to aberrant fetal growth and health. In vivo embryos are protected against oxidative stress by oxygen scavengers present in follicular and oviductal fluids, while in vitro, embryos rely on their own antioxidant defence mechanisms to protect against oxidative damage, including superoxide dismutase, catalase, glutathione and glutamylcysteine synthestase. Pre-implantation embryonic ROS originate from eggs, sperm and embryos themselves or from the external environment (i.e. in vitro culture system, obesity and ageing). This review examines the biological and pathological roles of ROS in the pre-implantation embryo, maternal and paternal origins of embryonic ROS, and from a clinical perspective, we comment on the growing interest in combating increased oxidative damage in the pre-implantation embryo through the addition of antioxidants.
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Affiliation(s)
- Joshua C Deluao
- Robinson Research Institute, The University of Adelaide, Adelaide, Australia.,Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, Australia.,Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, Australia
| | - Yasmyn Winstanley
- Robinson Research Institute, The University of Adelaide, Adelaide, Australia.,Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, Australia
| | - Rebecca L Robker
- Robinson Research Institute, The University of Adelaide, Adelaide, Australia.,Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, Australia.,Department of Anatomy and Developmental Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia
| | - Leanne Pacella-Ince
- Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, Australia.,Repromed, Dulwich, Australia
| | - Macarena B Gonzalez
- Robinson Research Institute, The University of Adelaide, Adelaide, Australia.,Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, Australia
| | - Nicole O McPherson
- Robinson Research Institute, The University of Adelaide, Adelaide, Australia.,Freemasons Centre for Male Health and Wellbeing, The University of Adelaide, Adelaide, Australia.,Adelaide Health and Medical School, School of Biomedicine, Discipline of Reproduction and Development, The University of Adelaide, Adelaide, Australia.,Repromed, Dulwich, Australia
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11
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Yang D, Yang S, Mu M, Liu X, Zhao L, Xu Z, Mu C, Li D, Ge L. Multifunctional β-Cyclodextrin-Poly(ethylene glycol)-Cholesterol Nanomicelle for Anticancer Drug Delivery. ACS APPLIED BIO MATERIALS 2022; 5:5418-5431. [PMID: 36326507 DOI: 10.1021/acsabm.2c00773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Nanoparticle drug delivery systems have drawn considerable attention worldwide due to their unique characteristics and advantages in anticancer drug delivery. Herein, the curcumin (Cur) loaded nanomicelles with two-stage drug release behavior were developed. β-Cyclodextrin (β-CD) and cholesterol were conjugated onto both ends of the poly(ethylene glycol) (PEG) chain to obtain an amphiphilic β-CD-PEG-Chol. The Cur was loaded into the cavities of β-CD and nanomicelle when the β-CD-PEG-Chol self-assembled to the Cur@β-CD-PEG-Chol nanomicelles (Cur@CPC NMs). These Cur@CPC NMs are spherical particles with a particle size of 120.9 nm. The Cur drug loading capacity of Cur@CPC NMs are 61.6 ± 6.9 mg/g. The release behavior of Cur from Cur@CPC NMs conformed to a two-stage mode of "burst-release followed by sustained-release". The prepared Cur@CPC NMs possess high storage stability and excellent hemocompatibility. Moreover, these Cur@CPC NMs exhibit satisfactory antioxidant activity and anticancer activity, resulting in significant reduction in intracellular H2O2-induced ROS and a nearly 50% lethality rate of HepG-2 cells. Meanwhile, the Cur@CPC NMs show good anti-inflammatory activity, by which the secretion of inflammatory factors of IL-6 and TNF-α are inhibited. Overall, the developed Cur@CPC NMs show application prospects in anticancer drug delivery systems.
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Affiliation(s)
- Die Yang
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Shilong Yang
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Mingze Mu
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Xueping Liu
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Lei Zhao
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu610041, P. R. China
| | - Zhilang Xu
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Changdao Mu
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Defu Li
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China
| | - Liming Ge
- Department of Pharmaceutics and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu610065, P. R. China.,Key Laboratory of Leather Chemistry and Engineering, Ministry of Education, Sichuan University, Chengdu610065, P. R. China
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12
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Abstract
The objective of this study was to investigate the effects of adding β-mercaptoethanol (βME) to culture medium of bovine in vitro-produced (IVP) embryos prior to or after vitrification on embryo development and cryotolerance. In Experiment I, Day-7 IVP blastocysts were vitrified and, after warming, cultured in medium containing 0, 50 or 100 μM βME for 72 h. Embryos cultured in 100 μM βME attained higher hatching rates (66.7%) than those culture in 0 (47.7%) and 50 (52.4%) μM βME. In Experiment II, IVP embryos were in vitro-cultured (IVC) to the blastocyst stage in 0 (control) or 100 μM βME, followed by vitrification. After warming, embryos were cultured for 72 h (post-warming culture, PWC) in 0 (control) or 100 μM βME, in a 2 × 2 factorial design: (i) CTRL-CTRL, control IVC and control PWC; (ii) CTRL-βME, control IVC and βME-supplemented PWC; (iii) βME-CTRL, βME-supplemented IVC and control PWC; or (iv) βME-βME, βME-supplemented IVC and βME-supplemented PWC. βME during IVC reduced embryo development (28.0% vs. 43.8%) but, following vitrification, higher re-expansion rates were seen in βME-CTRL (84.0%) and βME-βME (87.5%) than in CTRL-CTRL (71.0%) and CTRL-βME (73.1%). Hatching rates were higher in CTRL-βME (58.1%) and βME-βME (63.8%) than in CTRL-CTRL (36.6%) and βME-CTRL (42.0%). Total cell number in hatched blastocysts was higher in βME-βME (181.2 ± 7.4 cells) than CTRL-CTRL (139.0 ± 9.9 cells). Adding βME to the IVC medium reduced development but increased cryotolerance, whereas adding βME to the PWC medium improved embryo survival, hatching rates, and total cell numbers.
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13
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Normal and Pathological NRF2 Signalling in the Central Nervous System. Antioxidants (Basel) 2022; 11:antiox11081426. [PMID: 35892629 PMCID: PMC9394413 DOI: 10.3390/antiox11081426] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 11/17/2022] Open
Abstract
The nuclear factor erythroid 2-related factor 2 (NRF2) was originally described as a master regulator of antioxidant cellular response, but in the time since, numerous important biological functions linked to cell survival, cellular detoxification, metabolism, autophagy, proteostasis, inflammation, immunity, and differentiation have been attributed to this pleiotropic transcription factor that regulates hundreds of genes. After 40 years of in-depth research and key discoveries, NRF2 is now at the center of a vast regulatory network, revealing NRF2 signalling as increasingly complex. It is widely recognized that reactive oxygen species (ROS) play a key role in human physiological and pathological processes such as ageing, obesity, diabetes, cancer, and neurodegenerative diseases. The high oxygen consumption associated with high levels of free iron and oxidizable unsaturated lipids make the brain particularly vulnerable to oxidative stress. A good stability of NRF2 activity is thus crucial to maintain the redox balance and therefore brain homeostasis. In this review, we have gathered recent data about the contribution of the NRF2 pathway in the healthy brain as well as during metabolic diseases, cancer, ageing, and ageing-related neurodegenerative diseases. We also discuss promising therapeutic strategies and the need for better understanding of cell-type-specific functions of NRF2 in these different fields.
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14
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Liu RP, Wang XQ, Wang J, Dan L, Li YH, Jiang H, Xu YN, Kim NH. Oroxin A reduces oxidative stress, apoptosis, and autophagy and improves the developmental competence of porcine embryos in vitro. Reprod Domest Anim 2022; 57:1255-1266. [PMID: 35780288 DOI: 10.1111/rda.14200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/01/2022] [Indexed: 11/28/2022]
Abstract
Oroxin A (OA) is a flavonoid isolated from Oroxylum indicum (L.) Kurz that has various biological activities, including antioxidant activities. This study aimed to examine the viability of using OA in an in vitro culture (IVC) medium for its antioxidant effects and related molecular mechanisms on porcine blastocyst development. In this study, we investigated the effects of OA on early porcine embryo development via terminal deoxynucleotidyl transferase dUTP nick-end labeling, 5-ethynyl-2'-deoxyuridine labeling, quantitative reverse transcription PCR, and immunocytochemistry. Embryos cultured in the IVC medium supplemented with 2.5 μM of OA had an increased blastocyst formation rate, total cell number, and proliferation capacity, along with a low apoptosis rate. OA supplementation decreased reactive oxygen species levels, while increasing glutathione levels. OA-treated embryos exhibited an improved intracellular mitochondrial membrane potential and reduced autophagy. Moreover, levels of pluripotency- and antioxidant-related genes were upregulated, whereas those of apoptosis- and autophagy-related genes were downregulated by OA addition. In conclusion, OA improves preimplantation embryonic development by reducing oxidative stress and enhancing mitochondrial function.
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Affiliation(s)
- Rong-Ping Liu
- School of Biotechnology and Health Sciences, Wuyi University, 529000, Jiangmen, China
| | - Xin-Qin Wang
- School of Biotechnology and Health Sciences, Wuyi University, 529000, Jiangmen, China
| | - Jing Wang
- School of Biotechnology and Health Sciences, Wuyi University, 529000, Jiangmen, China
| | - Luo Dan
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, China
| | - Ying-Hua Li
- School of Biotechnology and Health Sciences, Wuyi University, 529000, Jiangmen, China
| | - Hao Jiang
- Department of Laboratory Animals, Jilin Provincial Key Laboratory of Animal Model, Jilin University, Changchun, China
| | - Yong-Nan Xu
- School of Biotechnology and Health Sciences, Wuyi University, 529000, Jiangmen, China
| | - Nam-Hyung Kim
- School of Biotechnology and Health Sciences, Wuyi University, 529000, Jiangmen, China
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15
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Qu P, Zhao J, Hu H, Cao W, Zhang Y, Qi J, Meng B, Zhao J, Liu S, Ding C, Wu Y, Liu E. Loss of Renewal of Extracellular Vesicles: Harmful Effects on Embryo Development in vitro. Int J Nanomedicine 2022; 17:2301-2318. [PMID: 35615541 PMCID: PMC9126234 DOI: 10.2147/ijn.s354003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 05/09/2022] [Indexed: 12/12/2022] Open
Abstract
Background Methods Results Conclusion
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Affiliation(s)
- Pengxiang Qu
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
| | - Jinpeng Zhao
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
| | - Huizhong Hu
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
| | - Wenbin Cao
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
| | - Yanru Zhang
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
| | - Jia Qi
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
| | - Bin Meng
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- The Assisted Reproduction Center, Northwest Women’s and Children’s Hospital, Xi’an, People’s Republic of China
| | - Juan Zhao
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
- Department of Hematology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, People’s Republic of China
| | - Shuangqing Liu
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
| | - Chong Ding
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
| | - Yuqi Wu
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
| | - Enqi Liu
- Laboratory Animal Center, Xi’an Jiaotong University Health Science Centre, Xi’an, Shaanxi, People’s Republic of China
- Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education of China, Xi'an, Shaanxi, People's Republic of China
- Correspondence: Enqi Liu, Email
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16
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Miao X, Cui W. Berberine alleviates LPS-induced apoptosis, oxidation, and skewed lineages during mouse preimplantation development†. Biol Reprod 2022; 106:699-709. [PMID: 35024788 PMCID: PMC9040657 DOI: 10.1093/biolre/ioac002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 12/30/2021] [Accepted: 01/06/2022] [Indexed: 01/14/2023] Open
Abstract
Female infertility is a heterogeneous disorder with a variety of complex causes, including inflammation and oxidative stress, which are also closely associated with the pathogenesis of polycystic ovary syndrome (PCOS). As a new treatment for PCOS, berberine (BER), a natural compound from Berberis, has been clinically applied recently. However, the mechanisms underlying the association between BER and embryogenesis are still largely unknown. In this study, effects of BER on preimplantation development were evaluated under both normal and inflammatory culture conditions induced by lipopolysaccharide (LPS) in mice. Our data first suggest that BER itself (25 nM) does not affect embryo quality or future developmental potency; however, it can effectively alleviate LPS-induced embryo damage by mitigating apoptosis via reactive oxygen species (ROS)-/caspase-3-dependent pathways and by suppressing proinflammatory cytokines via inhibition of the NF-κB signaling pathway during preimplantation embryonic development. In addition, skewed cell lineage specification in the inner cell mass (ICM) and primitive endoderm (PE) caused by LPS can also be successfully rescued with BER. In summary, these findings for the first time demonstrate the nontoxicity of low doses of BER and its antiapoptotic and antioxidative properties on embryonic cells during mammalian preimplantation development.
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Affiliation(s)
- Xiaosu Miao
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA
| | - Wei Cui
- Department of Veterinary and Animal Sciences, University of Massachusetts, Amherst, MA, USA.,Animal Models Core Facility, Institute for Applied Life Sciences (IALS), University of Massachusetts, Amherst, MA, USA
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17
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Zhao X, Ma R, Zhang X, Wang B, Rong B, Jiang N, Feng W, Chen M, Huo Z, Li S, Xia T. Transcriptomic study of the mechanism by which the Kai Yu Zhong Yu recipe improves oocyte quality in a stressed mouse model. JOURNAL OF ETHNOPHARMACOLOGY 2021; 278:114298. [PMID: 34090913 DOI: 10.1016/j.jep.2021.114298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/26/2021] [Accepted: 06/01/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The Kai Yu Zhong Yu recipe (KYZY) is a classic herbal formula in traditional Chinese medicine (TCM) that has been used to treat infertility associated with psychological stress for more than three hundred years. AIM OF THE STUDY Psychological stress has major impacts on fertility, with variable outcomes depending on the nature, strength, and duration of the stress. Stress can directly disturb ovulation, oocyte quality, maturation, and embryo development. The aim of this study is to investigate the molecular mechanism by which KYZY improves oocyte developmental potential under psychological stress. MATERIALS AND METHODS ICR female mice aged 4-5 weeks were randomly divided into five groups: control, stressed in the chronic unpredictable stress model (CUSM), and stressed plus KYZY treatment at 38.2 g/kg (KYZYH), 19.1 g/kg (KYZYM), or 9.6 g/kg (KYZYL). Ovary function was assessed by measuring serum levels of estradiol (E2), luteinizing hormone (LH), follicle-stimulating hormone (FSH), and anti-Müllerian hormone (AMH). Oocyte quality was evaluated in terms of reactive oxygen species (ROS) levels, apoptotic DNA fragmentation, and mitochondria distribution. We used RNA sequencing (RNAseq) to identify differentially expressed genes (DEGs) between groups and then further analyzed the DEGs for gene ontology (GO) term enrichment and protein-protein interactions. RESULTS Mice in the stressed group had reduced serum E2, LH, and FSH as well as increased ROS levels, increased apoptosis, and disturbed mitochondria distribution in oocytes. Treatment with KYZY at all three doses reversed or ameliorated these negative effects of stress. DEG analysis identified 187 common genes between the two comparisons (stressed vs. control and KYZYM vs. stressed), 33 of which were annotated with six gene ontology (GO)'s biological process (BP) terms: cell differentiation, apoptosis, ATP synthesis, protein homo-oligomerization, neuron migration, and negative regulation of peptidase activity. Protein-protein interaction network analysis of DEGs identified key hub genes. Notably, the genes Atp5o and Cyc1 were both involved in the ATP synthesis and among the top three hub genes, suggesting that regulation of oocyte mitochondrial electron transport and ATP synthesis is important in the response to stress and also is a possible mechanism of action for KYZY. CONCLUSIONS KYZY was effective in ameliorating the adverse effects of stress on oocyte competence, possibly by targeting the mitochondrial respiratory chain and ATP synthase.
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Affiliation(s)
- Xiaoli Zhao
- Reproductive Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, And National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China
| | - Ruihong Ma
- Reproductive Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, And National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China
| | - Xiaoyu Zhang
- Reproductive Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, And National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China
| | - Baojuan Wang
- Reproductive Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, And National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China
| | - Beilei Rong
- Reproductive Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, And National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China
| | - Nan Jiang
- Reproductive Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, And National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China
| | - Weihua Feng
- Reproductive Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, And National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China
| | - Mingli Chen
- Reproductive Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, And National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China
| | - Zhipeng Huo
- School of Chinese Materia Medica, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Shuming Li
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Tian Xia
- Reproductive Center, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, And National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300381, China.
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18
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Amoushahi M, Lykke-Hartmann K. Distinct Signaling Pathways Distinguish in vivo From in vitro Growth in Murine Ovarian Follicle Activation and Maturation. Front Cell Dev Biol 2021; 9:708076. [PMID: 34368158 PMCID: PMC8346253 DOI: 10.3389/fcell.2021.708076] [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: 05/11/2021] [Accepted: 06/18/2021] [Indexed: 11/24/2022] Open
Abstract
Women with cancer and low ovarian reserves face serious challenges in infertility treatment. Ovarian tissue cryopreservation is currently used for such patients to preserve fertility. One major challenge is the activation of dormant ovarian follicles, which is hampered by our limited biological understanding of molecular determinants that activate dormant follicles and help maintain healthy follicles during growth. Here, we investigated the transcriptomes of oocytes isolated from dormant (primordial) and activated (primary) follicles under in vivo and in vitro conditions. We compared the biological relevance of the initial molecular markers of mature metaphase II (MII) oocytes developed in vivo or in vitro. The expression levels of genes involved in the cell cycle, signal transduction, and Wnt signaling were highly enriched in oocytes from primary follicles and MII oocytes. Interestingly, we detected strong downregulation of the expression of genes involved in mitochondrial and reactive oxygen species (ROS) production in oocytes from primordial follicles, in contrast to oocytes from primary follicles and MII oocytes. Our results showed a dynamic pattern in mitochondrial and ROS production-related genes, emphasizing their important role(s) in primordial follicle activation and oocyte maturation. The transcriptome of MII oocytes showed a major divergence from that of oocytes of primordial and primary follicles.
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Affiliation(s)
| | - Karin Lykke-Hartmann
- Department of Biomedicine, Aarhus University, Aarhus, Denmark.,Department of Clinical Medicine, Aarhus University, Aarhus, Denmark.,Department of Clinical Genetics, Aarhus University Hospital, Aarhus, Denmark
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