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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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Rishi JK, Timme K, White HE, Kerns KC, Keating AF. Obesity partially potentiates dimethylbenz[a]anthracene-exposed ovotoxicity by altering the DNA damage repair response in mice†. Biol Reprod 2023; 108:694-707. [PMID: 36702632 PMCID: PMC10106840 DOI: 10.1093/biolre/ioac218] [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: 05/11/2022] [Revised: 08/02/2022] [Accepted: 11/30/2022] [Indexed: 01/28/2023] Open
Abstract
Obesity adversely affects reproduction, impairing oocyte quality, fecundity, conception, and implantation. The ovotoxicant, dimethylbenz[a]anthracene, is biotransformed into a genotoxic metabolite to which the ovary responds by activating the ataxia telangiectasia mutated DNA repair pathway. Basal ovarian DNA damage coupled with a blunted response to genotoxicant exposure occurs in obese females, leading to the hypothesis that obesity potentiates ovotoxicity through ineffective DNA damage repair. Female KK.Cg-a/a (lean) and KK.Cg-Ay/J (obese) mice received corn oil or dimethylbenz[a]anthracene (1 mg/kg) at 9 weeks of age for 7 days via intraperitoneal injection (n = 10/treatment). Obesity increased liver weight (P < 0.001) and reduced (P < 0.05) primary, preantral, and corpora lutea number. In lean mice, dimethylbenz[a]anthracene exposure tended (P < 0.1) to increase proestrus duration and reduced (P = 0.07) primordial follicle number. Dimethylbenz[a]anthracene exposure decreased (P < 0.05) uterine weight and increased (P < 0.05) primary follicle number in obese mice. Total ovarian abundance of BRCA1, γH2AX, H3K4me, H4K5ac, H4K12ac, and H4K16ac (P > 0.05) was unchanged by obesity or dimethylbenz[a]anthracene exposure. Immunofluorescence staining demonstrated decreased (P < 0.05) abundance of γH2AX foci in antral follicles of obese mice. In primary follicle oocytes, BRCA1 protein was reduced (P < 0.05) by dimethylbenz[a]anthracene exposure in lean mice. Obesity also decreased (P < 0.05) BRCA1 protein in primary follicle oocytes. These findings support both a follicle stage-specific ovarian response to dimethylbenz[a]anthracene exposure and an impact of obesity on this ovarian response.
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Affiliation(s)
- Jaspreet K Rishi
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Kelsey Timme
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Hunter E White
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Karl C Kerns
- Department of Animal Science, Iowa State University, Ames, IA, USA
| | - Aileen F Keating
- Department of Animal Science, Iowa State University, Ames, IA, USA
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3
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Ojo OA, Nwafor-Ezeh PI, Rotimi DE, Iyobhebhe M, Ogunlakin AD, Ojo AB. Apoptosis, inflammation, and oxidative stress in infertility: A mini review. Toxicol Rep 2023; 10:448-462. [PMID: 37125147 PMCID: PMC10130922 DOI: 10.1016/j.toxrep.2023.04.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 05/02/2023] Open
Abstract
Infertility has been a major issue in our society for many years, and millions of couples all over the world are still experiencing it. There are several reasons for and causes of infertility in both men and women. Recent studies have shown that apoptosis, inflammation, and oxidative stress contribute immensely to infertility. The data regarding this report were obtained through a thorough review of scientific articles published in various databases, including Elsevier, Web of Science, PubMed, Scopus, and Google Scholar. Furthermore, PhD and MSc theses were also reviewed when compiling the data. Apoptosis, also known as "programmed cell death," is a natural and harmless process that occurs in human beings. Although it can become harmful if altered, Inflammation, on the other hand, is the body's reaction to detrimental stimuli caused by toxic substances or compounds, while oxidative stress is a phenomenon that results in an imbalance between the generation and aggregation of reactive oxygen species (ROS) in the cells against antioxidants. These three factors interchangeably bring about several reproductive disorders in the body, resulting in infertility. This review aims at discussing how apoptosis, inflammation, and oxidative stress play a role in human infertility. Availability of data and material The datasets used and/or analyzed during the current study are available from the corresponding author upon reasonable request.
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Affiliation(s)
- Oluwafemi Adeleke Ojo
- Phytomedicine, Molecular Toxicology, and Computational Biochemistry Research Laboratory (PMTCB-RL), Department of Biochemistry, Bowen University, Iwo, Nigeria
- Correspondence to: Phytomedicine, Molecular Toxicology, and Computational Biochemistry Research Laboratory (PMTCB-RL), Department of Biochemistry, Bowen University, Iwo 232101, Nigeria.
| | - Pearl Ifunanya Nwafor-Ezeh
- Phytomedicine, Molecular Toxicology, and Computational Biochemistry Research Laboratory (PMTCB-RL), Department of Biochemistry, Bowen University, Iwo, Nigeria
| | | | | | - Akingbolabo Daniel Ogunlakin
- Phytomedicine, Molecular Toxicology, and Computational Biochemistry Research Laboratory (PMTCB-RL), Department of Biochemistry, Bowen University, Iwo, Nigeria
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4
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Land KL, Miller FG, Fugate AC, Hannon PR. The effects of endocrine-disrupting chemicals on ovarian- and ovulation-related fertility outcomes. Mol Reprod Dev 2022; 89:608-631. [PMID: 36580349 PMCID: PMC10100123 DOI: 10.1002/mrd.23652] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/03/2022] [Accepted: 11/06/2022] [Indexed: 11/21/2022]
Abstract
Exposure to endocrine-disrupting chemicals (EDCs) is unavoidable, which represents a public health concern given the ability of EDCs to target the ovary. However, there is a large gap in the knowledge about the impact of EDCs on ovarian function, including the process of ovulation. Defects in ovulation are the leading cause of infertility in women, and EDC exposures are contributing to the prevalence of infertility. Thus, investigating the effects of EDCs on the ovary and ovulation is an emerging area for research and is the focus of this review. The effects of EDCs on gametogenesis, uterine function, embryonic development, and other aspects of fertility are not addressed to focus on ovarian- and ovulation-related fertility issues. Herein, findings from epidemiological and basic science studies are summarized for several EDCs, including phthalates, bisphenols, per- and poly-fluoroalkyl substances, flame retardants, parabens, and triclosan. Epidemiological literature suggests that exposure is associated with impaired fecundity and in vitro fertilization outcomes (decreased egg yield, pregnancies, and births), while basic science literature reports altered ovarian follicle and corpora lutea numbers, altered hormone levels, and impaired ovulatory processes. Future directions include identification of the mechanisms by which EDCs disrupt ovulation leading to infertility, especially in women.
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Affiliation(s)
- Katie L. Land
- Department of Obstetrics & Gynecology, College of MedicineUniversity of KentuckyLexingtonKentuckyUSA
| | - Frances G. Miller
- Department of Obstetrics & Gynecology, College of MedicineUniversity of KentuckyLexingtonKentuckyUSA
| | - Ava C. Fugate
- Department of Obstetrics & Gynecology, College of MedicineUniversity of KentuckyLexingtonKentuckyUSA
| | - Patrick R. Hannon
- Department of Obstetrics & Gynecology, College of MedicineUniversity of KentuckyLexingtonKentuckyUSA
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5
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Stem Cell-Based Therapeutic Strategies for Premature Ovarian Insufficiency and Infertility: A Focus on Aging. Cells 2022; 11:cells11233713. [PMID: 36496972 PMCID: PMC9738202 DOI: 10.3390/cells11233713] [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] [Received: 10/26/2022] [Revised: 11/14/2022] [Accepted: 11/18/2022] [Indexed: 11/24/2022] Open
Abstract
Reproductive aging is on the rise globally and inseparable from the entire aging process. An extreme form of reproductive aging is premature ovarian insufficiency (POI), which to date has mostly been of idiopathic etiology, thus hampering further clinical applications and associated with enormous socioeconomic and personal costs. In the field of reproduction, the important functional role of inflammation-induced ovarian deterioration and therapeutic strategies to prevent ovarian aging and increase its function are current research hotspots. This review discusses the general pathophysiology and relative causes of POI and comprehensively describes the association between the aging features of POI and infertility. Next, various preclinical studies of stem cell therapies with potential for POI treatment and their molecular mechanisms are described, with particular emphasis on the use of human induced pluripotent stem cell (hiPSC) technology in the current scenario. Finally, the progress made in the development of hiPSC technology as a POI research tool for engineering more mature and functional organoids suitable as an alternative therapy to restore infertility provides new insights into therapeutic vulnerability, and perspectives on this exciting research on stem cells and the derived exosomes towards more effective POI diagnosis and treatment are also discussed.
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Delbes G, Blázquez M, Fernandino JI, Grigorova P, Hales BF, Metcalfe C, Navarro-Martín L, Parent L, Robaire B, Rwigemera A, Van Der Kraak G, Wade M, Marlatt V. Effects of endocrine disrupting chemicals on gonad development: Mechanistic insights from fish and mammals. ENVIRONMENTAL RESEARCH 2022; 204:112040. [PMID: 34509487 DOI: 10.1016/j.envres.2021.112040] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 09/03/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Over the past century, evidence has emerged that endocrine disrupting chemicals (EDCs) have an impact on reproductive health. An increased frequency of reproductive disorders has been observed worldwide in both wildlife and humans that is correlated with accidental exposures to EDCs and their increased production. Epidemiological and experimental studies have highlighted the consequences of early exposures and the existence of key windows of sensitivity during development. Such early in life exposures can have an immediate impact on gonadal and reproductive tract development, as well as on long-term reproductive health in both males and females. Traditionally, EDCs were thought to exert their effects by modifying the endocrine pathways controlling reproduction. Advances in knowledge of the mechanisms regulating sex determination, differentiation and gonadal development in fish and rodents have led to a better understanding of the molecular mechanisms underlying the effects of early exposure to EDCs on reproduction. In this manuscript, we review the key developmental stages sensitive to EDCs and the state of knowledge on the mechanisms by which model EDCs affect these processes, based on the roadmap of gonad development specific to fish and mammals.
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Affiliation(s)
- G Delbes
- Centre Armand Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Laval, Canada.
| | - M Blázquez
- Institute of Marine Sciences (ICM-CSIC), Barcelona, Spain
| | - J I Fernandino
- Instituto Tecnológico de Chascomús (CONICET-UNSAM), Chascomús, Argentina
| | | | - B F Hales
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada
| | - C Metcalfe
- School of Environment, Trent University, Trent, Canada
| | - L Navarro-Martín
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Barcelona, Spain
| | - L Parent
- Université TELUQ, Montréal, Canada
| | - B Robaire
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada; Department of Obstetrics and Gynecology, McGill University, Montreal, Canada
| | - A Rwigemera
- Centre Armand Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Laval, Canada
| | - G Van Der Kraak
- Department of Integrative Biology, University of Guelph, Guelph, Canada
| | - M Wade
- Environmental Health Science & Research Bureau, Health Canada, Ottawa, Canada
| | - V Marlatt
- Department of Biological Sciences, Simon Fraser University, Burnaby, Canada
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Wu JX, Xia T, She LP, Lin S, Luo XM. Stem Cell Therapies for Human Infertility: Advantages and Challenges. Cell Transplant 2022; 31:9636897221083252. [PMID: 35348026 PMCID: PMC8969497 DOI: 10.1177/09636897221083252] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Physical and mental health and hormonal imbalance are associated with the problems related to infertility and reproductive disorders. The rate of infertility has increased globally over the years, due to various reasons. Given the psychosocial implications of infertility and its effects on the life of the affected people, there has been an increased focus on its treatment over the last several years. Assisted reproductive technology can only solve about 50% of the cases. Moreover, it contains significant risks and does not solve the fundamental problem of infertility. As pluripotent stem cells have the potential to differentiate into almost any type of cell, they have been widely regarded as a promising option in the development of stem cell-based fertility treatments, which could even correct genetic diseases in offspring. These advancements in reproductive biotechnology present both challenges and possibilities for solving infertility problems caused by various unexplainable factors. This review briefly presents the different types of infertility disorders and the potential applications of stem cells in the treatment of these reproductive diseases.
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Affiliation(s)
- Jin-Xiang Wu
- Department of Reproductive Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Tian Xia
- Department of Reproductive Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
| | - Li-Ping She
- New England Fertility Institute, Stamford, CT, USA
| | - Shu Lin
- Centre of Neurological and Metabolic Research, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China.,Diabetes and Metabolism Division, Garvan Institute of Medical Research, Sydney, NSW, Australia
| | - Xiang-Min Luo
- Department of Reproductive Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, China
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8
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Li W, Zhang L, Shinohara A, Keeney S. Editorial: Meiosis: From Molecular Basis to Medicine. Front Cell Dev Biol 2021; 9:812292. [PMID: 34926477 PMCID: PMC8671932 DOI: 10.3389/fcell.2021.812292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- Wei Li
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China.,State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences (CAS), Beijing, China
| | - Liangran Zhang
- Advanced Medical Research Institute, Shandong University, Jinan, China
| | - Akira Shinohara
- Institute for Protein Research, Osaka University, Suita, Japan
| | - Scott Keeney
- Molecular Biology Program, Memorial Sloan Kettering Cancer Center, Howard Hughes Medical Institute, New York, NY, United States
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Hao X, Anastácio A, Viñals-Ribé L, Santamaria Lacuesta A, Diakaki C, Alonso de Mena S, Liu K, Rodriguez-Wallberg KA. Follicle Rescue From Prepubertal Ovaries After Recent Treatment With Cyclophosphamide-An Experimental Culture System Using Mice to Achieve Mature Oocytes for Fertility Preservation. Front Oncol 2021; 11:682470. [PMID: 34631518 PMCID: PMC8497963 DOI: 10.3389/fonc.2021.682470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 09/02/2021] [Indexed: 11/13/2022] Open
Abstract
Ovarian tissue cryopreservation is the only feasible method for fertility preservation in prepubertal girls that will undergo gonadotoxic chemotherapy. To date, the only clinical use of cryopreserved tissue is by a later tissue retransplantation to the patient. Clinical challenges in fertility preservation of very young patients with cancer include time constraints that do not allow to retrieve the tissue for cryopreservation before starting chemotherapy and the preclusion of future ovarian tissue transplantation due to the risk of reintroduction of malignant cells in patients with systemic diseases. To overcome these two challenges, we investigated using an experimental model the feasibility of retrieving secondary follicles from ovaries of prepubertal mice after cyclophosphamide (CPA) treatment in increasing doses of 50, 75, and 100 mg/kg. The follicles were thereafter cultured and matured in vitro. The main outcomes included the efficiency of the method in terms of obtained matured oocytes and the safety of these potentially fertility preservative procedures in terms of analyses of oocyte competence regarding normality of the spindle and chromosome configurations. Our findings demonstrated that it was feasible to isolate and culture secondary follicles and to obtain mature oocytes from prepubertal mice ovaries recently treated with CPA. The efficiency of this method was highly demonstrated in the 100 mg/kg CPA group, with near 90% follicle survival rate after 12 days' culture, similarly to control. Around 80% of the follicles met the criteria to put into maturation, and more than 40% of them achieved metaphase II, with normal spindle and chromosome configurations observed. Suboptimal results were obtained in the 50 and 75 mg/kg CPA groups. These paradoxical findings towards CPA dose might probably reflect a more difficult selection of damaged growing follicles from ovaries recently treated with lower doses of CPA and a hampered ability to identify and discard those with reduced viability for the culture.
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Affiliation(s)
- Xia Hao
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.,Laboratory of Translational Fertility Preservation, BioClinicum, Stockholm, Sweden
| | - Amandine Anastácio
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.,Laboratory of Translational Fertility Preservation, BioClinicum, Stockholm, Sweden
| | - Laia Viñals-Ribé
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.,Laboratory of Translational Fertility Preservation, BioClinicum, Stockholm, Sweden
| | - Ana Santamaria Lacuesta
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.,Laboratory of Translational Fertility Preservation, BioClinicum, Stockholm, Sweden
| | - Christina Diakaki
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.,Laboratory of Translational Fertility Preservation, BioClinicum, Stockholm, Sweden
| | - Sara Alonso de Mena
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.,Laboratory of Translational Fertility Preservation, BioClinicum, Stockholm, Sweden
| | - Kui Liu
- Shenzhen Key Laboratory of Fertility Regulation, Center of Assisted Reproduction and Embryology, The University of Hong Kong-Shenzhen Hospital, Shenzhen, China.,Department of Obstetrics and Gynecology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong, SAR, China
| | - Kenny A Rodriguez-Wallberg
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.,Laboratory of Translational Fertility Preservation, BioClinicum, Stockholm, Sweden.,Department of Reproductive Medicine, Division of Gynecology and Reproduction, Karolinska University Hospital, Stockholm, Sweden
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Algandaby MM. Quercetin attenuates cisplatin-induced ovarian toxicity in rats: Emphasis on anti-oxidant, anti-inflammatory and anti-apoptotic activities. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103191] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Dural O, Kurbanova T, Yasa C, Ugurlucan FG, Selvi E, Ozdemir PK, Akhan SE. Idiopathic primary ovarian insufficiency is associated with anogenital distance, a marker for prenatal environment. Eur J Obstet Gynecol Reprod Biol 2021; 258:304-308. [PMID: 33498004 DOI: 10.1016/j.ejogrb.2021.01.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 01/04/2021] [Accepted: 01/10/2021] [Indexed: 12/09/2022]
Abstract
OBJECTIVE In a significant number of women diagnosed with primary ovarian insufficiency (POI), the underlying cause cannot be found. On the other hand, the ovarian reserve set prenatally has been shown to be affected by intrauterine nutrition, environmental and hormonal factors. We aimed to evaluate the relationship between anogenital distance (AGD), which is considered as a biomarker for prenatal hormonal environment, and idiopathic POI in adolescents and young women. STUDY DESIGN This case control study was conducted between September 2018 and December 2019. The study group consisted of patients between the ages of 15-30, who developed POI following menarche without any identified genetic or iatrogenic cause. Controls were patients of the same age range who were having regular menstrual periods and were not diagnosed with polycystic ovary syndrome or endometriosis. Patients were excluded from the study if they were pregnant, had vaginal delivery or genital surgery. Distance between the anterior clitoral surface and the upper verge of the anus (AGDAC), and between the posterior fourchette and the upper verge of the anus (AGDAF) were measured in all subjects. RESULTS In total, 37 POI patients and 44 controls were included in the study. Two groups were similar for demographic parameters such as age and body mass index (BMI). Shorter AGDAC and AGDAF measurements were found to be associated with idiopathic POI. CONCLUSION Our results provide the first evidence of a strong association between shorter AGD measurements and the presence of idiopathic POI suggesting that prenatal environment may have role in the development of POI.
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Affiliation(s)
- Ozlem Dural
- Istanbul University Faculty of Medicine, Department of Obstetrics and Gynecology, Fatih, 34390, Istanbul, Turkey.
| | - Turkane Kurbanova
- Istanbul University Faculty of Medicine, Department of Obstetrics and Gynecology, Fatih, 34390, Istanbul, Turkey
| | - Cenk Yasa
- Istanbul University Faculty of Medicine, Department of Obstetrics and Gynecology, Fatih, 34390, Istanbul, Turkey
| | - Funda Gungor Ugurlucan
- Istanbul University Faculty of Medicine, Department of Obstetrics and Gynecology, Fatih, 34390, Istanbul, Turkey
| | - Esra Selvi
- Istanbul University Faculty of Medicine, Department of Obstetrics and Gynecology, Fatih, 34390, Istanbul, Turkey
| | - Pelin Kundakci Ozdemir
- Istanbul University Faculty of Medicine, Department of Obstetrics and Gynecology, Fatih, 34390, Istanbul, Turkey
| | - Suleyman Engin Akhan
- Istanbul University Faculty of Medicine, Department of Obstetrics and Gynecology, Fatih, 34390, Istanbul, Turkey
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Environmental Pollutant Benzo[a]pyrene Induces Recurrent Pregnancy Loss through Promoting Apoptosis and Suppressing Migration of Extravillous Trophoblast. BIOMED RESEARCH INTERNATIONAL 2020; 2020:8983494. [PMID: 33123590 PMCID: PMC7586159 DOI: 10.1155/2020/8983494] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 09/24/2020] [Accepted: 10/01/2020] [Indexed: 12/30/2022]
Abstract
Methods The implantation sites, fetus resorption, and abnormal fetuses were studied in pregnant mice treated with different doses of BaP by oral gavage from day 1 to day 10 of gestation. Additionally, apoptosis and related signaling pathway, and the migration and invasion of trophoblasts, were assessed before and after exposure of BPDE in Swan 71 trophoblast cell. Besides, the migration and invasion, and its related signaling pathway, were assessed in villi obtained from women. Results We observed a concentration-dependent incidence of abnormal murine fetuses, beginning with 0.1 mg/kg BaP; with a BaP concentration of 2 mg/kg, no fetuses developed. Correspondingly, a BPDE concentration-dependent apoptosis of human trophoblasts. Beginning with 0.5 μM BPDE exposure, Bax/Caspase-3 were increased and Bcl-2 decreased. Furthermore, BPDE also inhibited, in a dose-dependent manner, the migration of villous explants from elective abortion women, consistent with the reduced migration of villous explants from women with recurrent pregnancy loss (RPL), and reduced the cell immigration in Swan 71 trophoblasts, in a dose-dependent manner measured by transwell assays. Conclusions Our study results provide mechanistic insight to the effect of BPDE on trophoblast dysfunction through enhanced cell apoptosis and inhibited migration, providing further experimental evidence to the causative links between BaP exposure and PRL.
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Aningsih BSD, Sujuti H, Mustofa E, Ratnawati R. Anthocyanins from Ipomoea batatas L. effect on ovarian malondialdehyde and 17β-estradiol in rats exposed cigarette smoke. RUSSIAN OPEN MEDICAL JOURNAL 2020. [DOI: 10.15275/rusomj.2020.0308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Background — Cigarette smoking negatively impacts the health of both active smokers and passive smokers. ROS (Reactive Oxygen Species) from cigarette smoke can cause damage to the ovary and inhibit ovarian follicle growth. Objectives — This study aimed to assess the effects of the anthocyanins from the sweet potato (Ipomoea batatas L.) purple cultivar on ovarian malondialdehyde (MDA) and 17β-estradiol levels in rats (Rattus norvegicus) exposed to cigarette smoke. Material and Methods — The Rattus norvegicus Wistar strain was used in this study. Thirty rats were divided into five groups. Cigarette smoke was given as two cigarettes/day for four minutes, in the morning and afternoon for eight weeks after rats were at the proestrus stage. MDA levelwere measured with the BIOXYTECH MDA-586TM spectrophotometric assay for malondialdehyde, whilst 17β-estradiol was measured by ELISA. Data were then analyzed using one-way ANOVA. Results — MDA level were significantly different between the negative control and positive control groups based on double comparison with the LSD test (p=0.000 <∝). The level of 17β-estradiol also showed asignificant difference between the negative and positive control groups. There was a significant correlation between MDA level and 17β-estradiol levels (p=0.000 <∝) in the group of rats exposed to cigarette smoke and treated with anthocyanins from sweet potato at doses of 40 mg and 80 mg. Conclusions — Anthocyanins from the sweet potato (Ipomoea batatas L.) purple cultivar given at various doses decreased ovarian MDA level and increased 17β-estradiol levels in female rats exposed to cigarette smoke.
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Reduced serotonin impairs long-term depression in basolateral amygdala complex and causes anxiety-like behaviors in a mouse model of perimenopause. Exp Neurol 2019; 321:113030. [DOI: 10.1016/j.expneurol.2019.113030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Revised: 07/07/2019] [Accepted: 07/31/2019] [Indexed: 11/19/2022]
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Mechanistic perspective of protective effects of resveratrol against cisplatin-induced ovarian injury in rats: emphasis on anti-inflammatory and anti-apoptotic effects. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:1225-1238. [PMID: 31129703 DOI: 10.1007/s00210-019-01662-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Accepted: 05/02/2019] [Indexed: 12/18/2022]
Abstract
Chemotherapeutic platinum-containing drugs are widely used to treat a variety of cancer types; however, they cause ovarian failure and infertility. The aim of this study is to investigate the molecular mechanism underlying the potential protective effect of resveratrol against cisplatin-induced ovarian damage in a rat model. Female rats were given either cisplatin (6 mg/kg, i.p., once per week for two consecutive weeks) and/or resveratrol (10 mg/kg, orally for 17 days). Follicular development, ovarian function markers, as well as apoptotic and inflammatory markers were assessed 24 h after the last resveratrol dose. Resveratrol ameliorated the marked follicular loss and the significant reduction in anti-Müllerian hormone (AMH) level triggered by cisplatin. Mechanistically, cisplatin elicited a potent inflammatory response in ovarian tissue as evidenced by the elevated expression of tumor necrosis factor, nuclear factor kappa-B, and proinflammatory enzymes. Co-treatment with resveratrol inhibited the elevation in inflammatory mediators induced by cisplatin. Further, cisplatin switched on the apoptotic machinery in ovarian tissues via increasing the expression of both cytochrome c and caspase-3 which was reversed upon resveratrol co-treatment. Resveratrol also counteracts the upregulating poly(ADP-ribose) polymerase expression which could attribute to the inflammatory and apoptotic effects of cisplatin. Resveratrol protects the ovary from cisplatin-induced toxicity through preventing the loss of the AMH-secreting granulosa cells, diminishing PARP-1 expression, and downregulating the inflammatory and apoptotic events implicated in cisplatin toxicity.
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Fabregues F, González-Foruria I, Peñarrubia J, Carmona F. Ovarian response is associated with anogenital distance in patients undergoing controlled ovarian stimulation for IVF. Hum Reprod 2019; 33:1696-1704. [PMID: 30016431 DOI: 10.1093/humrep/dey244] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Accepted: 06/19/2018] [Indexed: 01/18/2023] Open
Abstract
STUDY QUESTION Is the length of the anogenital distance (AGD) a biomarker of ovarian reserve and response to controlled ovarian stimulation (COS)? SUMMARY ANSWER Shorter AGD is associated with presence of poor ovarian response. WHAT IS KNOWN ALREADY Organ development during prenatal life is influenced by the prevailing intrauterine environment, and it has been suggested that nutritional, environmental and toxic factors could affect ovarian reserve set prenatally. AGD is a biomarker of prenatal-hormonal environment and observational studies have shown an association between its length and reproductive parameters in both sexes. STUDY DESIGN, SIZE, DURATION This was a prospective cohort study of 437 women treated with IVF/ICSI conducted in a tertiary-care university hospital between January and December 2016. PARTICIPANTS/MATERIALS, SETTING, METHODS All women underwent their first COS for IVF/ICSI and reached criteria for oocyte retrieval. Based on the number of oocytes obtained, patients were divided into three groups: poor responders (≤3 oocytes) (n = 50), normoresponders (4-15 oocytes) (n = 332) and high responders (>15 oocytes) (n = 55). Before retrieval, the following patient data were recorded: age, body mass index (BMI), ovarian reserve markers (anti-Müllerian hormone [AMH], antral follicle count [AFC] and follicular stimulation hormone [FSH]), cause of infertility, total doses of gonadotropins used and ovarian sensitivity index (OSI). Patients with previous pregnancies, polycystic ovary syndrome (PCOS), endometriosis and previous ovarian or genital surgery were excluded. Anthropometric biomarkers of AGDAC (anus-clitoris) and AGDAF (anus-fourchette) were measured in all patients under sedation on the day of retrieval and before proceeding to oocyte pick-up. Multiple linear regression analyses were used to examine the association between both AGD and ovarian reserve markers, the total units of gonadotropins used, the number of oocytes obtained and the OSI. Logistic regression was used to predict poor response in COS for IVF/ICSI, while accounting for confounders such as age and BMI. MAIN RESULTS AND THE ROLE OF CHANCE Baseline FSH, AMH, AFC and age were significantly different among the three groups of ovarian response, as were the units of gonadotropin used, and the ovarian sensitivity index (OSI) (P < 0.001). Both AGDAC and AGDAF measurements were positively correlated with AMH levels (r = 0.38 and r = 0.21; P < 0.05), AFC (r = 0.41 and r = 0.20; P < 0.05), the OSI (r = 0.24 and r = 0.19; P < 0.05) and the number of oocytes retrieved (r = 0.29 and r = 0.28, respectively; P < 0.05). Conversely, there was a negative correlation between both AGD measurements and the doses of gonadotropins used (r= -0.19 and r= -0.15; P < 0.05). The area under the curve (AUC) for prediction of poor response of AGDAC was 0.70 (95% CI 0.66, 0.75), which was comparable to the classic ovarian reserve markers, such as AFC and AMH. AGDAF showed a significantly worse predictive capacity for poor ovarian response (AUC 0.60 [95% CI 0.55, 0.60]) than AMH and AFC. LIMITATIONS, REASONS FOR CAUTION The population used for the study was a highly selected group of infertile women who underwent COS for IVF, so the findings of this research may not be applicable for general population. Besides, measurement or selection biases might have been possible and must be considered. WIDER IMPLICATIONS OF THE FINDINGS The findings of this study suggest that in utero exposure to certain hormonal environments could affect the ovarian reserve set prenatally. STUDY FUNDING/COMPETING INTEREST(S) None. The authors have no competing interests to declare.
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Affiliation(s)
- F Fabregues
- Institut Clínic of Gynecology, Obstetrics and Neonatology, Hospital Clínic- Institut d´Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Faculty of Medicine-University of Barcelona, Spain
| | - I González-Foruria
- Institut Clínic of Gynecology, Obstetrics and Neonatology, Hospital Clínic- Institut d´Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Faculty of Medicine-University of Barcelona, Spain
| | - J Peñarrubia
- Institut Clínic of Gynecology, Obstetrics and Neonatology, Hospital Clínic- Institut d´Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Faculty of Medicine-University of Barcelona, Spain
| | - F Carmona
- Institut Clínic of Gynecology, Obstetrics and Neonatology, Hospital Clínic- Institut d´Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Faculty of Medicine-University of Barcelona, Spain
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Pascuali N, Scotti L, Di Pietro M, Oubiña G, Bas D, May M, Gómez Muñoz A, Cuasnicú PS, Cohen DJ, Tesone M, Abramovich D, Parborell F. Ceramide-1-phosphate has protective properties against cyclophosphamide-induced ovarian damage in a mice model of premature ovarian failure. Hum Reprod 2019. [PMID: 29534229 DOI: 10.1093/humrep/dey045] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
STUDY QUESTION Is ceramide-1-phosphate (C1P) an ovarian protective agent during alkylating chemotherapy? SUMMARY ANSWER Local administration of C1P drastically reduces ovarian damage induced by cyclophosphamide (Cy) via protection of follicular reserve, restoration of hormone levels, inhibition of apoptosis and improvement of stromal vasculature, while protecting fertility, oocyte quality and uterine morphology. WHAT IS KNOWN ALREADY Cancer-directed therapies cause accelerated loss of ovarian reserve and lead to premature ovarian failure (POF). Previous studies have demonstrated that C1P regulates different cellular processes including cell proliferation, cell migration, angiogenesis and apoptosis. This sphingolipid may be capable of modulating vascular development and apoptosis in ovaries affected by chemotherapy. STUDY DESIGN, SIZE, DURATION The 6-8-week-old mice were weighed and administered either a single intraperitoneal injection of Cy (75 mg/kg) or an equal volume of saline solution only for control mice. Control and Cy mice underwent sham surgery and received an intrabursal injection of saline solution, while Cy + C1P animal groups received 5 μl C1P, either 0.5 or 1 mM, under the bursa of both ovaries 1 h prior to Cy administration. PARTICIPANTS/MATERIALS, SETTING, METHODS Animals were euthanized by cervical dislocation or cardiac puncture 2 weeks after surgery for collection of blood orovary and uterus samples, which were cleaned of adhering tissue in culture medium and used for subsequent assays. Ovaries were used for Western blotting or immunohistochemical and/or histological analyses or steroid extraction, as required (n = 5-8 per group). A set of mice (n = 3/group) was destined for oocyte recovery and IVF. Finally, another set (n = 5-6/group) was separated to study fertility parameters. MAIN RESULTS AND THE ROLE OF CHANCE The number of primordial (P < 0.01), primary (P < 0.05) and preantral follicles (P < 0.05) were decreased in Cy-treated mice compared to control animals, while atretic follicles were increased (P < 0.001). In Cy + C1P mice, the ovaries recovered control numbers of these follicular structures, in both C1P doses studied. Cy affected AMH expression, while it was at least partially recovered when C1P is administered as well. Cy caused an increase in serum FSH concentration (P < 0.01), which was prevented by C1P coadministration (P < 0.01). E2 levels in Cy-treated ovaries decreased significantly compared to control ovaries (P < 0.01), whilst C1P restored E2 levels to those of control ovaries (P < 0.01). Cy increased the expression of BAX (P < 0.01) and decreased the expression of BCLX-L compared to control ovaries (P < 0.01). The ovarian BCLX-L:BAX ratio was also lower in Cy-treated mice (P < 0.05). In the Cy + C1P group, the expression levels of BAX, BCLX-L and BCLX-L:BAX ratio were no different than those in control ovaries. In addition, acid sphingomyelinase (A-SMase) expression was higher in Cy-treated ovaries, whilst remaining similar to the control in the Cy + C1P group. Cy increased the apoptotic index (TUNEL-positive follicles/total follicles) in preantral and early antral stages, compared to control ovaries (P < 0.001 and P < 0.01, respectively). C1P protected follicles from this increase. No primordial or primary follicular cells stained for either cleaved caspase-3 or TUNEL when exposed to Cy, therefore, we have found no evidence for follicular reserve depletion in response to Cy being due to apoptosis. Cy caused evident vascular injury, especially in large cortical stromal vessels, and some neovascularization. In the Cy + C1P group, the disruptions in vascular wall continuity were less evident and the number of healthy stromal blood vessels seemed to be restored. In Cy-treated ovaries α-SMA-positive cells showed a less uniform distribution around blood vessels. C1P coadministration partially prevented this Cy-induced effect, with a higher presence of α-SMA-positive cells surrounding vessels. By H&E staining, Cy-treated mice showed endometrial alterations compared to controls, affecting both epithelial and stromal compartments. However, C1P allowed that the stromal tissue to maintain its loose quality and its glandular branches. Cy-treated animals had significantly lower pregnancy rates and smaller litter sizes compared with control mice (P = 0.013 and P < 0.05, respectively), whereas cotreatment with C1P preserved normal fertility. Furthermore, a higher (P < 0.05) proportion of abnormal oocytes was recovered from Cy-treated mice compared to the control, which was prevented by C1P administration. LARGE SCALE DATA N/A. LIMITATIONS REASONS FOR CAUTION The results of this study were generated from an in-vivo animal experimental model, already used by several authors. Further studies on C1P functions in female reproduction in pathological conditions such as chemotherapy-induced ovarian failure and on the safety of use of this sphingolipid are required. WIDER IMPLICATIONS OF THE FINDINGS The present findings showed that C1P administration prior to Cy might be a promising fertility preservation strategy in female patients who undergo chemotherapy. STUDY FUNDING/COMPETING INTEREST(S) This work was supported by grants from ANPCyT (PICT 2015-1117), CONICET (PIP 380), Cancer National Institute (INC) and Roemmers Foundation, Argentina. The authors declare no conflicts of interest.
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Affiliation(s)
- Natalia Pascuali
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Leopoldina Scotti
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Mariana Di Pietro
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Gonzalo Oubiña
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Diana Bas
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - María May
- Instituto de Investigaciones Farmacológicas (ININFA-UBA-CONICET), Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Antonio Gómez Muñoz
- Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Bilbao, Spain
| | - Patricia S Cuasnicú
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Débora J Cohen
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Marta Tesone
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Dalhia Abramovich
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Fernanda Parborell
- IInstituto de Biología y Medicina Experimental (IByME-CONICET), Vuelta de Obligado 2490, C1428ADN, Buenos Aires, Argentina
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Jiang C, Yang H, Di P, Li W, Tang Y, Liu G. In silico prediction of chemical reproductive toxicity using machine learning. J Appl Toxicol 2019; 39:844-854. [DOI: 10.1002/jat.3772] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/05/2018] [Accepted: 12/15/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Changsheng Jiang
- Shanghai Key Laboratory of New Drug Design, School of PharmacyEast China University of Science and Technology Shanghai 200237 China
| | - Hongbin Yang
- Shanghai Key Laboratory of New Drug Design, School of PharmacyEast China University of Science and Technology Shanghai 200237 China
| | - Peiwen Di
- Shanghai Key Laboratory of New Drug Design, School of PharmacyEast China University of Science and Technology Shanghai 200237 China
| | - Weihua Li
- Shanghai Key Laboratory of New Drug Design, School of PharmacyEast China University of Science and Technology Shanghai 200237 China
| | - Yun Tang
- Shanghai Key Laboratory of New Drug Design, School of PharmacyEast China University of Science and Technology Shanghai 200237 China
| | - Guixia Liu
- Shanghai Key Laboratory of New Drug Design, School of PharmacyEast China University of Science and Technology Shanghai 200237 China
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Huang Y, Guo J, Lv N, Li S, Wu Y, Bai R, Shen J, Chen G, Zhang D. Associations of urinary polycyclic aromatic hydrocarbons with age at natural menopause in U.S. women aged 35-65, NHANES 2003-2012. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:1878-1886. [PMID: 30408876 DOI: 10.1016/j.envpol.2018.09.109] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 09/04/2018] [Accepted: 09/21/2018] [Indexed: 06/08/2023]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) mediated ovarian toxicity has been demonstrated in animal experiments. However, this issue has not been assessed in humans. Based on the National Health and Nutrition Examination Survey (NHANES) 2003-2012, data analysis was restricted to 1221 general U.S. women aged 35-65 years with complete data of interest. Levels of nine PAH metabolites in spot urine specimens were measured by isotope dilution gas chromatography/tandem mass spectrometry (GC-MS/MS). Self-reported information on the menopause status and age at menopause were obtained during interview. Cox proportional hazards regression was employed to assess the associations between PAH levels and natural menopause. Compared with women in the first quartile, subjects in the highest quartile of 1-Hydroxynapthalene [hazard ratio (HR) = 1.46, 95% confidence interval (CI) = 1.06 to 2.01], 2-Hydroxynapthalene (HR = 1.51, 95% CI = 1.12 to 2.05) and 3-Hydroxyfluorene (HR = 1.51, 95% CI = 1.06 to 2.16), or in the second quartile of 9-Hydroxyfluorene (HR = 1.53, 95% CI = 1.05 to 2.22), had elevated risks of earlier onset of natural menopause. Our findings suggested positive associations between urinary PAH levels and earlier age at natural menopause in the general U.S. women. Prospective studies are warranted to confirm the causality in the future.
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Affiliation(s)
- Yun Huang
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jing Guo
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Na Lv
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Shuai Li
- Department of Clinical Laboratory, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yiqing Wu
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Rongpan Bai
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Jun Shen
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
| | - Guangdi Chen
- Institute of Environmental Health, Department of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Dan Zhang
- Key Laboratory of Reproductive Genetics (Ministry of Education), Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
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Archibong AE, Rideout ML, Harris KJ, Ramesh A. OXIDATIVE STRESS IN REPRODUCTIVE TOXICOLOGY. CURRENT OPINION IN TOXICOLOGY 2017; 7:95-101. [PMID: 30105313 DOI: 10.1016/j.cotox.2017.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Oxidative stress (OS) has been implicated in the causation of environmentally-induced diseases. However, the role of toxicants in the pathophysiology of disorders and diseases affecting the reproductive system are less understood. This review focuses on some of the mechanisms that underlie OS-induced reproductive toxicity at the cellular- and organ levels (germ cell damage and perturbed organ responses to endocrine stimuli). While most of the reproductive and developmental studies conducted in adult animals and transgenerational adult animals point to the involvement of genotoxicity, the part played by epigenetic alterations is accorded a recent recognition, thus warranting more studies in this area. Additionally, metabolomic, proteomic and transcriptomic approaches need to be employed to advance our understanding of key metabolites formed and the expression of anti-OS genes at the molecular level that are necessary for combating reactive oxygen species formation. The resulting data could be analyzed using bioinformatics tools to identify the pathways linked to disease causation and as a consequence, the adoption of therapeutic strategies, including but not limited to administering phytochemicals (many of which possess antioxidant properties) to improve disease outcomes.
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Affiliation(s)
| | | | - Kenneth J Harris
- Department of Biochemistry & Cancer Biology, Meharry Medical College, Nashville TN 37208
| | - Aramandla Ramesh
- Department of Biochemistry & Cancer Biology, Meharry Medical College, Nashville TN 37208
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21
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Polycyclic aromatic hydrocarbons and female reproductive health: A scoping review. Reprod Toxicol 2017; 73:61-74. [DOI: 10.1016/j.reprotox.2017.07.012] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 07/18/2017] [Accepted: 07/20/2017] [Indexed: 12/14/2022]
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Barut MU, Agacayak E, Bozkurt M, Aksu T, Gul T. There is a Positive Correlation Between Socioeconomic Status and Ovarian Reserve in Women of Reproductive Age. Med Sci Monit 2016; 22:4386-4392. [PMID: 27847382 PMCID: PMC5123781 DOI: 10.12659/msm.897620] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The purpose of this study was to investigate the potential association between socioeconomic status and ovarian reserve, anti-Mullerian hormone level, antral follicle count, and follicle stimulating hormone level in women of reproductive age. Material/Methods A total of 101 married women between 20–35 years of age who presented to the Department of Obstetrics and Gynecology, Health Research System In Vitro Fertilization (HRS IVF) Center between October 2014 and November 2015 and met the inclusion criteria were included in this study. The participants were divided into three socioeconomic groups using Kuppuswamy’s socioeconomic status scale. Thirty-one participants were assigned to the low socioeconomic status group, 37 to the middle socioeconomic status group, and 33 to the high socioeconomic status group. On days 3–6 of the menstrual cycle, 10 mL of blood was collected from the participants for follicle stimulating hormone and anti-Mullerian hormone measurements. Transvaginal ultrasonography was performed for both ovaries for the purpose of counting antral follicles measuring 2–10 mm in diameter. Results Both ovarian reserve parameters, namely anti-Mullerian hormone level and antral follicle count, exhibited a significant association with socioeconomic status (p=0.000 and p=0.000, respectively). The association between follicle stimulating hormone level and socioeconomic status was also significant (p=0.000). Conclusions A low socioeconomic status aggravated by sources of stress such as undernutrition and financial hardships affects ovarian reserve, which should be remembered in approaching infertile patients.
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Affiliation(s)
- Mert Ulas Barut
- Department of Obstetrics and Gynecology, Health Research System In Vitro Fertilization (HRS IVF) Center, Ankara, Turkey
| | - Elif Agacayak
- Department of Obstetrics and Gynecology, Dicle University, School of Medicine, Diyarbakir, Turkey
| | - Murat Bozkurt
- Department of Obstetrics and Gynecology, Sakarya University, School of Medicine, Sakarya, Turkey
| | - Tarık Aksu
- Department of Obstetrics and Gynecology, Health Research System In Vitro Fertilization (HRS IVF) Center, Ankara, Turkey
| | - Talip Gul
- Department of Obstetrics and Gynecology, Dicle University, School of Medicine, Diyarbakir, Turkey
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The 'Developmental Origins' Hypothesis: relevance to the obstetrician and gynecologist. J Dev Orig Health Dis 2016; 6:415-24. [PMID: 26347389 DOI: 10.1017/s2040174415001324] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The recognition of 'fetal origins of adult disease' has placed new responsibilities on the obstetrician, as antenatal care is no longer simply about ensuring good perinatal outcomes, but also needs to plan for optimal long-term health for mother and baby. Recently, it has become clear that the intrauterine environment has a broad and long-lasting impact, influencing fetal and childhood growth and development as well as future cardiovascular health, non-communicable disease risk and fertility. This article looks specifically at the importance of the developmental origins of ovarian reserve and ageing, the role of the placenta and maternal nutrition before and during pregnancy. It also reviews recent insights in developmental medicine of relevance to the obstetrician, and outlines emerging evidence supporting a proactive clinical approach to optimizing periconceptional as well as antenatal care aimed to protect newborns against long-term disease susceptibility.
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Zhou H, Malik MA, Arab A, Hill MT, Shikanov A. Hydrogel Based 3-Dimensional (3D) System for Toxicity and High-Throughput (HTP) Analysis for Cultured Murine Ovarian Follicles. PLoS One 2015; 10:e0140205. [PMID: 26451950 PMCID: PMC4599796 DOI: 10.1371/journal.pone.0140205] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 08/29/2015] [Indexed: 12/22/2022] Open
Abstract
Various toxicants, drugs and their metabolites carry potential ovarian toxicity. Ovarian follicles, the functional unit of the ovary, are susceptible to this type of damage at all stages of their development. However, despite of the large scale of potential negative impacts, assays that study ovarian toxicity are limited. Exposure of cultured ovarian follicles to toxicants of interest served as an important tool for evaluation of toxic effects for decades. Mouse follicles cultured on the bottom of a culture dish continue to serve an important approach for mechanistic studies. In this paper, we demonstrated the usefulness of a hydrogel based 3-dimensional (3D) mouse ovarian follicle culture as a tool to study ovarian toxicity in a different setup. The 3D in vitro culture, based on fibrin alginate interpenetrating network (FA-IPN), preserves the architecture of the ovarian follicle and physiological structure-function relationship. We applied the novel 3D high-throughput (HTP) in vitro ovarian follicle culture system to study the ovotoxic effects of an anti-cancer drug, Doxorobucin (DXR). The fibrin component in the system is degraded by plasmin and appears as a clear circle around the encapsulated follicle. The degradation area of the follicle is strongly correlated with follicle survival and growth. To analyze fibrin degradation in a high throughput manner, we created a custom MATLAB® code that converts brightfield micrographs of follicles encapsulated in FA-IPN to binary images, followed by image analysis. We did not observe any significant difference between manually processed images to the automated MATLAB® method, thereby confirming that the automated program is suitable to measure fibrin degradation to evaluate follicle health. The cultured follicles were treated with DXR at concentrations ranging from 0.005 nM to 200 nM, corresponding to the therapeutic plasma levels of DXR in patients. Follicles treated with DXR demonstrated decreased survival rate in greater DXR concentrations. We observed partial follicle survival of 35% ± 3% (n = 80) in 0.01nM treatment and 48% ± 2% (n = 92) in 0.005nM, which we identified as the IC50 for secondary follicles. In summary, we established a 3D in vitro ovarian follicle culture system that could be used in an HTP approach to measure toxic effects on ovarian follicles.
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Affiliation(s)
- Hong Zhou
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, United States of America
| | - Malika Amattullah Malik
- College of Literature, Science and the Arts, University of Michigan, Ann Arbor, Michigan, 48109, United States of America
| | - Aarthi Arab
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, United States of America
| | - Matthew Thomas Hill
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, United States of America
| | - Ariella Shikanov
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, United States of America
- Department of Macromolecular Science and Engineering, University of Michigan, Ann Arbor, Michigan, 48109, United States of America
- * E-mail:
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Huo Y, Xu Y, Wang J, Wang F, Liu Y, Zhang Y, Zhang B. Analysis of the serum reproductive system related autoantibodies of infertility patients in Tianjin region of China. Int J Clin Exp Med 2015; 8:14048-14053. [PMID: 26550366 PMCID: PMC4613051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2015] [Accepted: 08/02/2015] [Indexed: 06/05/2023]
Abstract
OBJECT Reproductive system related autoantibodies have been proposed to be associated with natural infertility. However, large scale systematic analysis of these of antibodies has not been conducted. The aim of this study is to analyze the positive rate of antisperm antibody (ASAb), anti-endometrium antibody (EMAb), anti-ovary antibody (AOAb), anti-zona pellucida antibody (AZP) and anticardiolipin antibody (ACA) in infertility patients in Tianjin region of China. METHODS 1305 male and 1711 female primary infertility patients and 1100 female secondary infertility patients were included in this study, as well as 627 healthy female controls. The above autoantibodies were tested and the positive rates in each group were calculated. RESULTS the positive rate of ASAb were significantly higher in primary infertility female than that in male, further analysis revealed that primary infertility population all exhibit significant higher positive rate of EMAb, AOAb, AZP and ACA compared with control group. Furthermore, the positive rates of all the antibodies in primary infertility female were significantly higher than those in secondary infertility female. CONCLUSIONS Our study thus indicates that these autoantibodies might be associated with immunological related primary infertility and may have clinical significance in its diagnosis and treatment.
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Affiliation(s)
- Yan Huo
- Department of Family Planning, The Second Hospital of Tianjin Medical UniversityTianjin 300211, China
| | - Yanying Xu
- Department of Gynecology, The Second Hospital of Tianjin Medical UniversityTianjin 300211, China
| | - Jianmei Wang
- Department of Family Planning, The Second Hospital of Tianjin Medical UniversityTianjin 300211, China
| | - Fang Wang
- Department of Gynecology, The Second Hospital of Tianjin Medical UniversityTianjin 300211, China
| | - Yu Liu
- Department of Urology, The Second Hospital of Tianjin Medical UniversityTianjin 300211, China
| | - Yujuan Zhang
- Department of Family Planning, The Second Hospital of Tianjin Medical UniversityTianjin 300211, China
| | - Bumei Zhang
- Department of Family Planning, The Second Hospital of Tianjin Medical UniversityTianjin 300211, China
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Alur S, Wang H, Hoeger K, Swan SH, Sathyanarayana S, Redmon BJ, Nguyen R, Barrett ES. Urinary phthalate metabolite concentrations in relation to history of infertility and use of assisted reproductive technology. Fertil Steril 2015; 104:1227-35. [PMID: 26275821 DOI: 10.1016/j.fertnstert.2015.07.1150] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 07/18/2015] [Accepted: 07/22/2015] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To examine urinary phthalate metabolite concentrations in pregnant women with planned pregnancies in relation to history of infertility and use of assisted reproductive technology (ART). DESIGN Phthalate metabolite concentrations were measured in first-trimester urine samples collected from women participating in a prospective pregnancy cohort study. SETTING Prenatal clinics. PATIENT(S) A total of 750 women, of whom 86 had a history of infertility. Forty-one women used ART to conceive. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Primary outcomes were concentrations of four metabolites of diethylhexyl phthalate (DEHP) and their molar sum (∑DEHP). Multivariable analyses compared phthalate metabolite levels in [1] women reporting a history of infertility vs. those who did not (comparison group); and [2] those who used ART to conceive the index pregnancy vs. women with a history of infertility who did not use ART. RESULT(S) Among women with a history of infertility, ∑DEHP was significantly lower in women who conceived after ART compared with those who did not (geometric mean ratio: 0.83; 95% confidence interval 0.71-0.98). Similar significant associations were observed for all of the individual DEHP metabolites. There were no differences in DEHP metabolite concentrations between women with a history of infertility and the comparison group. CONCLUSION(S) Women who used ART to conceive had lower first-trimester phthalate metabolite concentrations than women with a history of infertility who did not use ART. Further research is needed to explore whether those pursuing fertility treatments take precautions to avoid exposure to environmental toxins, to improve treatment outcomes.
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Affiliation(s)
- Snigdha Alur
- Department of Obstetrics and Gynecology, University of Rochester, Rochester, New York.
| | - Hongyue Wang
- Department of Biostatistics and Computational Biology, University of Rochester, Rochester, New York
| | - Kathy Hoeger
- Department of Obstetrics and Gynecology, University of Rochester, Rochester, New York
| | - Shanna H Swan
- Department of Preventive Medicine, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Sheela Sathyanarayana
- Department of Pediatrics, University of Washington, Seattle, Washington; Seattle Children's Research Institute, Seattle, Washington
| | - Bruce J Redmon
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Ruby Nguyen
- Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota
| | - Emily S Barrett
- Department of Obstetrics and Gynecology, University of Rochester, Rochester, New York
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Abstract
Menopause is an inevitable component of ageing and encompasses the loss of ovarian reproductive function, either occurring spontaneously or secondary to other conditions. It is not yet possible to accurately predict the onset of menopause, especially early menopause, to give women improved control of their fertility. The decline in ovarian oestrogen production at menopause can cause physical symptoms that may be debilitating, including hot flushes and night sweats, urogenital atrophy, sexual dysfunction, mood changes, bone loss, and metabolic changes that predispose to cardiovascular disease and diabetes. The individual experience of the menopause transition varies widely. Important influential factors include the age at which menopause occurs, personal health and wellbeing, and each woman's environment and culture. Management options range from lifestyle assessment and intervention through to hormonal and non-hormonal pharmacotherapy, each of which has specific benefits and risks. Decisions about therapy for perimenopausal and postmenopausal women depend on symptomatology, health status, immediate and long-term health risks, personal life expectations, and the availability and cost of therapies. More effective and safe therapies for the management of menopausal symptoms need to be developed, particularly for women who have absolute contraindications to hormone therapy. For an illustrated summary of this Primer, visit: http://go.nature.com/BjvJVX.
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Khedr NF. Protective effect of mirtazapine and hesperidin on cyclophosphamide-induced oxidative damage and infertility in rat ovaries. Exp Biol Med (Maywood) 2015; 240:1682-9. [PMID: 25787947 DOI: 10.1177/1535370215576304] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 01/27/2015] [Indexed: 12/16/2022] Open
Abstract
Cyclophosphamide (CP) causes infertility due to ovarian toxicity. The toxicity mechanism suggests oxidative stress. We assessed whether mirtazapine (MTZ) and hesperidin (HSP) could promote ovarian protection against damage due to CP chemotherapy. Female Wistar rats aged 14 weeks were used. Animals were divided into four groups: control vehicle group (n = 8); CP group (n = 8, rats received 150 mg/kg of CP, single intraperitoneal [i.p.] injection); CP + MTZ group (n = 8, rats received same dose of CP + 30 mg/kg of MTZ, orally, daily); and HSP + CP group (n = 8, rats received same dose of CP + 100 mg/kg of HSP, orally, daily). After eight days of medication, ovaries were removed and ovarian toxicity was assessed by counting follicles and corpora lutea. Nitric oxide (NO) and malondialdehyde (MDA) levels, myeloperoxidase (MPO), glutathione peroxidase (GPx), and superoxide dismutase (SOD) activities were estimated in ovarian tissue. NO level, MDA level, and MPO activity were increased (P < 0.001), while, GPx and SOD activities were lowered significantly (P < 0.001) in CP-treated group compared with control vehicle. In addition, ovulation, number of follicles, and ovarian weight were reduced by CP treatment. On the contrary, rats pretreated with MTZ and HSP showed significant decrease in NO, MDA levels, and MPO activity, while, activities of SOD and GPx were increased (P < 0.001). Oxidative stress induced by CP in the rat ovary causes infertility in the female rats. HSP and MTZ could reverse this effect and provide protection of fertility against CP-induced toxicity.
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Affiliation(s)
- Naglaa Fathi Khedr
- Department of Biochemistry, Faculty of Pharmacy, Tanta University, 31527 Tanta, Egypt
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Zhao Y, Chen X, Liu X, Ding Y, Gao R, Qiu Y, Wang Y, He J. Exposure of mice to benzo(a)pyrene impairs endometrial receptivity and reduces the number of implantation sites during early pregnancy. Food Chem Toxicol 2014; 69:244-51. [PMID: 24769007 DOI: 10.1016/j.fct.2014.04.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 04/05/2014] [Accepted: 04/11/2014] [Indexed: 01/14/2023]
Abstract
Benzo(a)pyrene (BaP) is a ubiquitous environmental pollutant. Studies have demonstrated it to be an endocrine-disrupting chemical that can cause adverse effects on the female reproductive system. However, the effect of BaP on early pregnancy has not been reported. We investigated the effect of BaP on endometrial receptivity and embryo implantation. Pregnant mice were dosed with BaP at 0.2, 2 and 20 mg/kg/day from day 1 (D1) to day 5 (D5) of gestation. Exposure to BaP impaired the morphology of the endometrium and decreased the number of implantation sites (p0.2=0.006, p2=0.167, p20=0.003). Levels of estrodiol (p<0.001, for three treatment group compare with control group) and progesterone-4 in plasma were elevated in BaP-treatment groups (p0.2<0.001, p2<0.001, p20=0.032). Expression of estrogen receptor-α was up-regulated (p0.2=0.002, p2=0.131, p20=0.024) whereas expression of the progesterone receptor was down-regulated (p0.2<0.001, p2=0.064, p20=0.021). Levels of receptivity-related genes HoxA10 (p0.2<0.001, p2=0.135, p20<0.001) and E-cadherin (p0.2=0.002, p2=0.624, p20=0.137) were changed by BaP. These results revealed that BaP can disrupt the balance of estrogen and progesterone, influence expression of their receptors and downstream related genes, lead to changes in endometrium receptivity, and reduce of the number of implantation sites.
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Affiliation(s)
- Yi Zhao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Xuemei Chen
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Xueqing Liu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Yubin Ding
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Rufei Gao
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Yiwen Qiu
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Yingxiong Wang
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China
| | - Junlin He
- Laboratory of Reproductive Biology, School of Public Health, Chongqing Medical University, Box 197, No. 1 Yixueyuan Road, Yuzhong District, 400016 Chongqing, PR China.
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30
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Hoyer PB, Keating AF. Xenobiotic effects in the ovary: temporary versus permanent infertility. Expert Opin Drug Metab Toxicol 2014; 10:511-23. [DOI: 10.1517/17425255.2014.880690] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Richardson M, Guo M, Fauser B, Macklon N. Environmental and developmental origins of ovarian reserve. Hum Reprod Update 2013; 20:353-69. [DOI: 10.1093/humupd/dmt057] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Rekhadevi PV, Diggs DL, Huderson AC, Harris KL, Archibong AE, Ramesh A. Metabolism of the environmental toxicant benzo(a)pyrene by subcellular fractions of human ovary. Hum Exp Toxicol 2013; 33:196-202. [PMID: 23703818 DOI: 10.1177/0960327113489050] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Knowledge of the ability of the female reproductive system to metabolize environmental chemicals is critical not only from the standpoint of toxicity but also from infertility risk assessment. Benzo(a)pyrene (BaP) is a toxicant that is released into the environment from automobile exhausts, cigarette smoke, burning of refuse, industrial emissions, and hazardous waste sites. In exposed animals, BaP becomes activated to reactive metabolites that interfere with target organ function and as a consequence cause toxicity. Studies on animal models conducted in our laboratories and those of others have shown that BaP possess endocrine disrupting properties. Thus, this chemical has the potential to cause infertility and cancers in the female genital tract. An understanding of BaP metabolism in the female reproductive system will be of importance in the diagnosis and management of female fertility as well as cancers in the reproductive tissues. Therefore, the objective of our study was to examine the metabolism of BaP by human ovarian subcellular fractions. Human ovary samples (eight individuals) were obtained from postoperative tissue removed from subjects with uterine tumors. Subcellular fractions (nuclear, cytosolic, mitochondrial, and microsomal) were prepared by differential centrifugation. BaP (1 μM and 3 μM) was individually incubated with individual subcellular fractions for 15 min and the products were analyzed by high-performance liquid chromatography. Among the different fractions tested, microsomal BaP metabolism was higher than the rest of the fractions. The BaP metabolites identified were as follows: BaP-9,10-diol, BaP-4,5-diol, BaP-7,8-diol, 9(OH) BaP, 3(OH) BaP, BaP-1,6-dione, BaP-3,6-dione, and BaP-6,12-dione. Of interest was the presence of DNA-reactive metabolites such as BaP-3,6-dione, BaP-6,12-dione, and BaP 7,8-diol, which have been implicated in the causation of infertility and cancer. Our results indicate that women who are exposed to BaP via cigarette smoke, occupational settings, and diet are more likely at a larger risk of this toxicant-induced infertility and cancer than others.
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Affiliation(s)
- P V Rekhadevi
- 1Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, TN, USA
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33
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Marion SL, Watson J, Sen N, Brewer MA, Barton JK, Hoyer PB. 7,12-dimethylbenz[a]anthracene-induced malignancies in a mouse model of menopause. Comp Med 2013; 63:6-12. [PMID: 23561932 PMCID: PMC3567371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 07/24/2012] [Accepted: 08/30/2012] [Indexed: 06/02/2023]
Abstract
Ovarian cancer has a high mortality rate because there are few symptoms in early disease development. The incidence of ovarian cancer increases in women after menopause. Understanding early events in this disease can best be achieved by using animal models. Therefore, the objective of this study was to develop and track the onset of ovarian tumorigenesis in mice mimicking characteristics of postmenopausal epithelial cancer in women. Female B6C3F1 mice (age, 28 d) received 4-vinylcyclohexene diepoxide (VCD, 160 mg/kg IV daily for 20 d) to cause ovarian failure. Four months after VCD treatment, via surgical intervention, each mouse received a single injection of 7,12-dimethylbenz[a]anthracene (DMBA) or vehicle control (sesame oil) under the bursa of the right ovary to cause ovarian neoplasms. The experimental groups were untreated controls (Con-Con), DMBA-treatment only (Con-DMBA), VCD treatment only (VCD-Con), and VCD+DMBA-treated (VCD+DMBA) mice. At 3, 5, 7, and 9 mo after DMBA injection, ovaries were collected for histologic and immunohistochemical evaluation. No tumors developed in Con-Con mice. All VCD-treated mice (with or without DMBA) exhibited ovarian failure. Mice that received both VCD and DMBA exhibited tumors at 3 mo (50%), 5 mo (14%), 7 mo (90%), and 9 mo (57%) after DMBA treatment; 31% of the tumors were epithelial in origin. Our findings confirm that inducing ovarian tumors in mice by chemical means is an effective method for studying early stages of tumor development that may be relevant to epithelial ovarian cancers that arise in postmenopausal women.
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Affiliation(s)
| | - Jennifer Watson
- Biomedical Engineering, University of Arizona, Tucson, Arizona
| | | | - Molly A Brewer
- Division of Gynecologic, Oncology, Carol and Ray Neag Comprehensive Cancer Center, University of Connecticut Health Center, Farmington, Connecticut
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34
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Qi SC, Wei XY, Zong ZM, Wang YK. Application of supported metallic catalysts in catalytic hydrogenation of arenes. RSC Adv 2013. [DOI: 10.1039/c3ra40848e] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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Abstract
Over recent decades, epidemiological studies have been reporting worrisome trends in the incidence of human infertility rates. Extensive detection of industrial chemicals in human serum, seminal plasma and follicular fluid has led the scientific community to hypothesise that these compounds may disrupt hormonal homoeostasis, leading to a vast array of physiological impairments. Numerous synthetic and natural substances have endocrine-disruptive effects, acting through several mechanisms. The main route of exposure to these chemicals is the ingestion of contaminated food and water. They may disturb intrauterine development, resulting in irreversible effects and may also induce transgenerational effects. This review aims to summarise the major scientific developments on the topic of human infertility associated with exposure to endocrine disruptors (EDs), integrating epidemiological and experimental evidence. Current data suggest that environmental levels of EDs may affect the development and functioning of the reproductive system in both sexes, particularly in foetuses, causing developmental and reproductive disorders, including infertility. EDs may be blamed for the rising incidence of human reproductive disorders. This constitutes a serious public health issue that should not be overlooked. The exposure of pregnant women and infants to EDs is of great concern. Therefore, precautionary avoidance of exposure to EDs is a prudent attitude in order to protect humans and wildlife from permanent harmful effects on fertility.
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Affiliation(s)
- André Marques-Pinto
- Serviço de EndocrinologiaFaculdade de Medicina da Universidade do PortoAl. Prof. Hernâni Monteiro4200-319, PortoPortugal
- Correspondence should be addressed to A Marques-Pinto
| | - Davide Carvalho
- Serviço de EndocrinologiaFaculdade de Medicina da Universidade do PortoAl. Prof. Hernâni Monteiro4200-319, PortoPortugal
- Departamento de Endocrinologia, Diabetes e MetabolismoCentro Hospitalar de São JoãoPortoPortugal
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36
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Endocrine disruptive actions of inhaled benzo(a)pyrene on ovarian function and fetal survival in fisher F-344 adult rats. Reprod Toxicol 2012; 34:635-43. [PMID: 23059060 DOI: 10.1016/j.reprotox.2012.09.003] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 09/06/2012] [Accepted: 09/18/2012] [Indexed: 01/06/2023]
Abstract
This study evaluated the effect of inhaled BaP on female reproductive function. Rats were exposed to 50, or 75 or 100 μg BaP/m(3), 4 h a day for 14 days via inhalation. Plasma E(2), P(4), LH and FSH concentrations were determined. Ovarian BaP metabolism and aryl hydrocarbon hydrolase (AHH) activity at proestrus were determined and fertility evaluations were conducted. Ovulation rate and number of pups/litter were reduced in rats exposed to 100 μg BaP/m(3) compared with other treatment and control groups. Plasma concentrations of E(2), and LH were significantly reduced at proestrus in BaP-exposed versus those of controls whereas those of P(4) were significantly reduced at diestrus I. The activity of AHH in ovarian and liver tissues and concentrations of BaP 7,8-diol and BaP 3,6-dione metabolites increased in an exposure concentration-dependent manner. These data suggest that exposure of rats to BaP prior to mating contributes to reduced ovarian function and fetal survival.
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37
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Sobinoff AP, Nixon B, Roman SD, McLaughlin EA. Staying alive: PI3K pathway promotes primordial follicle activation and survival in response to 3MC-induced ovotoxicity. Toxicol Sci 2012; 128:258-71. [PMID: 22505044 DOI: 10.1093/toxsci/kfs137] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
3-Methylcholanthrene (3MC) is a potent ovotoxicant capable of causing premature ovarian failure through primordial follicle depletion. Despite 3MCs ovotoxicity having been established for 30 years, relatively little information exists on the mechanisms. In this study, we examined the effects of 3MC exposure on the immature ovarian follicle population. Microarray analysis revealed a complex mechanism of 3MC-induced ovotoxicity involving a number of cellular processes associated with xenobiotic metabolism, ovarian cancer, cell cycle progression, and cell death. 3MC exposure was also found to induce developing follicle atresia and aberrant primordial follicle activation via the stimulation of PI3K/Akt and mammalian target of rapamycin (mTOR) signaling pathways. Inhibition of PI3K/Akt signaling resulted in the severe depletion of the primordial follicle pool, with further analysis identifying increased Akt1-stimulated Bad phosphoinhibition in 3MC-treated primordial follicles. Our results suggest that the primordial follicle pool enters a "prosurvival" state upon 3MC exposure and that its depletion is due to a vicious cycle of primordial follicle activation in an attempt to replace developing follicles undergoing follicular atresia.
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Affiliation(s)
- Alexander P Sobinoff
- Reproductive Science Group, School of Environmental & Life Sciences, University of Newcastle, Callaghan, New South Wales 2308, Australia
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