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Yao X, Liu W, Xie Y, Xi M, Xiao L. Fertility loss: negative effects of environmental toxicants on oogenesis. Front Physiol 2023; 14:1219045. [PMID: 37601637 PMCID: PMC10436557 DOI: 10.3389/fphys.2023.1219045] [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: 05/08/2023] [Accepted: 07/27/2023] [Indexed: 08/22/2023] Open
Abstract
There has been a global decline in fertility rates, with ovulatory disorders emerging as the leading cause, contributing to a global lifetime infertility prevalence of 17.5%. Formation of the primordial follicle pool during early and further development of oocytes after puberty is crucial in determining female fertility and reproductive quality. However, the increasing exposure to environmental toxins (through occupational exposure and ubiquitous chemicals) in daily life is a growing concern; these toxins have been identified as significant risk factors for oogenesis in women. In light of this concern, this review aims to enhance our understanding of female reproductive system diseases and their implications. Specifically, we summarized and categorized the environmental toxins that can affect oogenesis. Here, we provide an overview of oogenesis, highlighting specific stages that may be susceptible to the influence of environmental toxins. Furthermore, we discuss the genetic and molecular mechanisms by which various environmental toxins, including metals, cigarette smoke, and agricultural and industrial toxins, affect female oogenesis. Raising awareness about the potential risks associated with toxin exposure is crucial. However, further research is needed to fully comprehend the mechanisms underlying these effects, including the identification of biomarkers to assess exposure levels and predict reproductive outcomes. By providing a comprehensive overview, this review aims to contribute to a better understanding of the impact of environmental toxins on female oogenesis and guide future research in this field.
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Affiliation(s)
- Xiaoxi Yao
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China
| | - Weijing Liu
- Breast Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yidong Xie
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China
| | - Mingrong Xi
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China
| | - Li Xiao
- Department of Obstetrics and Gynecology, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Chengdu, Sichuan, China
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Rao A, Nayak G, Ananda H, Kumari S, Dutta R, Kalthur SG, Mutalik S, Thomas SA, Pasricha R, Raghu SV, Adiga SK, Kalthur G. Anti-tuberculosis drugs used in a directly observed treatment short course (DOTS) schedule alter endocrine patterns and reduce the ovarian reserve and oocyte quality in the mouse. Reprod Fertil Dev 2022; 34:1059-1077. [PMID: 36219878 DOI: 10.1071/rd22108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/30/2022] [Indexed: 06/16/2023] Open
Abstract
CONTEXT Tuberculosis is one of the major infectious diseases, with people of reproductive age group having a high risk of infection. AIMS The present study was designed to understand the consequences of anti-tuberculosis drugs (ATDs) used in DOTS (directly observed treatment short course) schedule on ovarian function. METHODS Adult female Swiss albino mice were orally administered with combinations of ATDs used in the DOTS schedule every day for 4weeks. At 2weeks after the cessation of ATDs administration, the endocrine changes and ovarian function were assessed in mice. KEY RESULTS Administration of ATDs to mice resulted in a prolonged estrous cycle, reduced ovarian follicle reserve, alteration in FSH, LH, and progesterone level, and decreased the number of ovulated oocytes. Further, the degree of fragmentation, degeneration, abnormal distribution of cytoplasmic organelles, abnormal spindle organisation, and chromosomal misalignment were higher in oocytes that were ovulated following superovulation. Blastocysts derived from ATDs treated mice had significantly lower total cell numbers and greater DNA damage. A marginal increase in the number of resorbed fetuses was observed in all the ATDs treated groups except in the multidrug resistance treatment group. Male progeny of ATDs treated mice had decreased sperm count and lower progressive motility, while female progeny exhibited a non-significant reduction in the number of oocytes ovulated. CONCLUSIONS Theresults of this study suggest that ATDs can have significant adverse effects on the ovarian reserve, cytoplasmic organisation of oocytes, and can potentially cause transgenerational changes. IMPLICATIONS The findings of the present study indicate ovarian toxicity of ATDs and warrant further research in the direction of identifying alternate drugs with minimal toxicity, and strategies to mitigate the ovarian toxicity induced by these drugs.
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Affiliation(s)
- Arpitha Rao
- Division of Reproductive Biology, Department of Reproductive Sciences, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Guruprasad Nayak
- Division of Reproductive Biology, Department of Reproductive Sciences, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Hanumappa Ananda
- Division of Reproductive Biology, Department of Reproductive Sciences, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Sandhya Kumari
- Division of Reproductive Biology, Department of Reproductive Sciences, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Rahul Dutta
- Division of Reproductive Biology, Department of Reproductive Sciences, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Sneha Guruprasad Kalthur
- Department of Anatomy, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Sneha Ann Thomas
- Research Instrument Scientist 1-Electron Microscopy, Core Technology Platforms Operations, NYU, Abu Dhabi, United Arab Emirates
| | - Renu Pasricha
- Research Instrument Scientist 1-Electron Microscopy, Core Technology Platforms Operations, NYU, Abu Dhabi, United Arab Emirates
| | - Shamprasad Varija Raghu
- Neurogenetics Lab, Department of Applied Zoology, Mangalore University, Mangalagangothri 574199, Karnataka, India
| | - Satish Kumar Adiga
- Division of Clinical Embryology, Department of Reproductive Sciences, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - Guruprasad Kalthur
- Division of Reproductive Biology, Department of Reproductive Sciences, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
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Predheepan D, Daddangadi A, Uppangala S, Laxminarayana SLK, Raval K, Kalthur G, Kovačič B, Adiga SK. Experimentally Induced Hyperglycemia in Prepubertal Phase Impairs Oocyte Quality and Functionality in Adult Mice. Endocrinology 2022; 163:6653492. [PMID: 35917567 DOI: 10.1210/endocr/bqac121] [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: 06/22/2022] [Indexed: 11/19/2022]
Abstract
Reproductive abnormalities in women with a history of childhood diabetes are believed to be partially attributed to hyperglycemia. Prolonged hyperglycemia can negatively affect ovarian function and fertility during reproductive life. To address this in an experimental setting, the present study used streptozotocin-induced hyperglycemic prepubertal mouse model. The impact of prolonged hyperglycemic exposure during prepubertal life on ovarian function, oocyte quality, and functional competence was assessed in adult mice. The ovarian reserve was not significantly altered; however, the in vitro maturation potential (P < 0.001), mitochondrial integrity (P < 0.01), and meiotic spindle assembly (P < 0.05-0.001) in oocytes were significantly affected in hyperglycemic animals in comparison to control groups. The results from the study suggest that prepubertal hyperglycemia can have adverse effects on the oocyte functional competence and spindle integrity during the reproductive phase of life. Because these changes can have a significant impact on the genetic integrity and developmental potential of the embryos and fetus, the observation warrants further research both in experimental and clinical settings.
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Affiliation(s)
- Dhakshanya Predheepan
- Division of Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Akshatha Daddangadi
- Division of Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Shubhashree Uppangala
- Division of Reproductive Genetics, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | | | - Keyur Raval
- D epartment of Chemical Engineering, National Institute of Technology Karnataka Surathkal 575025, India
| | - Guruprasad Kalthur
- Division of Reproductive Biology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Borut Kovačič
- Laboratory of Reproductive Biology, Department of Reproductive Medicine and Endocrinology, University Medical Centre, Maribor 2000, Slovenia
| | - Satish Kumar Adiga
- Division of Clinical Embryology, Department of Reproductive Science, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal 576104, India
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Zhang F, Lv X, Jia H, Huang C, Wei J, Ding Z, Wang F, Wang J. Toxicity of the novel fungicide oxathiapiprolin to Chlorella vulgaris: Assessments at different levels of biological organization. CHEMOSPHERE 2022; 291:132752. [PMID: 34736937 DOI: 10.1016/j.chemosphere.2021.132752] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/10/2021] [Accepted: 10/30/2021] [Indexed: 06/13/2023]
Abstract
Oxathiapiprolin (Otp) is the first successful oxysterol-binding protein (OSBP) inhibitor in oomycete control. It is regarded as a significant milestone in the history of fungicide discoveries and has vast application prospects. There is little available information on the ecotoxicity of Otp to aquatic organisms. In this study, we evaluated the toxic effects of Otp in the Chlorella vulgaris (C. vulgaris). The results revealed the acute toxicity of Otp to C. vulgaris, with a 96-h median effective concentration for growth inhibition of 0.74 mg/L. When algal cells were exposed to 0.5 and 1.5 mg/L Otp, their chlorophyll and carotenoid contents dropped dramatically. As suggested by the significant increase in reactive oxygen species (ROS) and malondialdehyde (MDA) levels and the remarkable changes in the activity of a series of antioxidant enzymes, Otp induces production of ROS, resulting in oxidative damage. In addition, Otp can damage cell structures and could destroy membrane integrity. Finally, the changes in endogenous substances indicated that Otp can perturb energy metabolism and photosynthesis in C. vulgaris cells. The experimental results suggest that Otp can have toxic effects on algal cells by disturbing photosynthesis and causing oxidative damage and abnormal energy metabolism in C. vulgaris cells.
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Affiliation(s)
- Fengwen Zhang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences (CAAS), Qingdao, 266101, PR China
| | - Xiaolin Lv
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences (CAAS), Qingdao, 266101, PR China
| | - Haijiang Jia
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, 530001, PR China
| | - Chongjun Huang
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, 530001, PR China
| | - Jianyu Wei
- China Tobacco Guangxi Industrial Co., Ltd., Nanning, 530001, PR China
| | - Zhonglin Ding
- Guizhou Tobacco Company Qiannan Prefecture Company, Qiannan, 558000, PR China
| | - Fenglong Wang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences (CAAS), Qingdao, 266101, PR China
| | - Jie Wang
- Tobacco Research Institute of Chinese Academy of Agricultural Sciences (CAAS), Qingdao, 266101, PR China.
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Liao X, Cao J, Hu Y, Zhang C, Hu L. Mechanism of unactivated peroxymonosulfate-induced degradation of methyl parathion: Kinetics and transformation pathway. CHEMOSPHERE 2021; 284:131332. [PMID: 34198067 DOI: 10.1016/j.chemosphere.2021.131332] [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: 02/17/2021] [Revised: 06/12/2021] [Accepted: 06/23/2021] [Indexed: 06/13/2023]
Abstract
Although various activated peroxymonosulfate (PMS) processes have been applied widely for the destruction of recalcitrant organics due to its high generation potential of various electrophiles reactive oxygen species (e.g., sulfate and hydroxyl radicals and singlet oxygen), non-radical-based PMS reactions with pollutants are poorly understood. Especially, relatively little information exists on the reactivity of PMS towards organic ester compounds such an organophosphorus pesticides (OPPs). Herein, we systematically studied the unactivated PMS-induced transformation of methyl parathion, a stubborn and toxic OPP. Specifically, direct reaction rather than electrophile radical-based oxidation was responsible for the rapid degradation of methyl parathion. The contribution of the produced singlet oxygen (1O2) from the self-decomposition of PMS to methyl parathion degradation can be neglected. The degradation rate constant (kobs) was strongly dependent on PMS loading and solution pH. The implication of the PMS reaction with methyl parathion for environment treatment was further evaluated by investigating the effects of common water matrices such as sediment humic acids, Cl-, and natural water. The identified metabolic products revealed that exposure to PMS resulted in hydrolysis and oxidation to methyl parathion. Further study demonstrated that PMS was also capable of effectively oxidizing other typical OPPs without explicit activation. This study provides novel insights into the reaction of methyl parathion with PMS, which indicate feasibility for the decontamination of OPP-contaminated environments.
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Affiliation(s)
- Xiaoping Liao
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Jinru Cao
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Ying Hu
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan, 430205, China
| | - Caixiang Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, China.
| | - Lisong Hu
- School of Xingfa Mining Engineering, Wuhan Institute of Technology, Wuhan, 430205, China.
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Upson K, Weinberg CR, Nichols HB, Dinse GE, D’Aloisio AA, Sandler DP, Baird DD. Early-life Farm Exposure and Ovarian Reserve in a US Cohort of Women. Epidemiology 2021; 32:672-680. [PMID: 34039897 PMCID: PMC8370468 DOI: 10.1097/ede.0000000000001376] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND In a previous exploratory study, we reported lower concentrations of the ovarian reserve biomarker anti-Müllerian hormone (AMH) in adulthood with prenatal farm exposure. We now examine this association as well as childhood farm exposure using enrollment data from the Sister Study, a large US cohort of women. METHODS We collected prenatal and childhood farm exposure data by questionnaire and telephone interview. However, serum AMH data were available only for a nested subset: premenopausal women ages 35-54 subsequently diagnosed with breast cancer (n = 418 cases) and their matched controls (n = 866). To avoid potential bias from restricting analyses to only premenopausal controls, we leveraged the available cohort data. We used data from both premenopausal cases and controls as well as postmenopausal women ages 35-54 (n = 3,526) (all presumed to have undetectable AMH concentrations) and applied weights to produce a sample representative of the cohort ages 35-54 (n = 17,799). The high proportion of undetectable AMH concentrations (41%) was addressed using reverse-scale Cox regression. An adjusted hazard ratio (HR) <1.0 indicates that exposed individuals had lower AMH concentrations than unexposed individuals. RESULTS Prenatal exposure to maternal residence or work on a farm was associated with lower AMH concentrations (HR 0.66; 95% confidence intervals [CI] = 0.48 to 0.90). Associations between childhood farm residence exposures and AMH were null or weak, except childhood contact with pesticide-treated livestock or buildings (HR 0.69; 95% CI = 0.40 to 1.2). CONCLUSIONS Replication of the prenatal farm exposure and lower adult AMH association raises concern that aspects of prenatal farm exposure may result in reduced adult ovarian reserve.
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Affiliation(s)
- Kristen Upson
- Department of Epidemiology and Biostatistics, College of
Human Medicine, Michigan State University, East Lansing, MI, USA
| | - Clarice R. Weinberg
- Biostatistics & Computational Biology Branch, National
Institute of Environmental Health Sciences, Research Triangle Park, NC, USA
| | - Hazel B. Nichols
- Department of Epidemiology, Gillings School of Global
Public Health, University of North Carolina, Chapel Hill, NC, USA
| | - Gregg E. Dinse
- Clinical and Public Health Sciences, Social &
Scientific Systems, Durham, NC, USA
| | - Aimee A. D’Aloisio
- Clinical and Public Health Sciences, Social &
Scientific Systems, Durham, NC, USA
| | - Dale P. Sandler
- Epidemiology Branch, National Institute of Environmental
Health Sciences, Research Triangle Park, NC, USA
| | - Donna D. Baird
- Epidemiology Branch, National Institute of Environmental
Health Sciences, Research Triangle Park, NC, USA
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Lin H, Lin F, Yuan J, Cui F, Chen J. Toxic effects and potential mechanisms of Fluxapyroxad to zebrafish (Danio rerio) embryos. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 769:144519. [PMID: 33482547 DOI: 10.1016/j.scitotenv.2020.144519] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 12/03/2020] [Accepted: 12/11/2020] [Indexed: 06/12/2023]
Abstract
Fluxapyroxad is a broad-spectrum and high-efficiency succinate dehydrogenase inhibitor fungicide that can control plant fungal pathogens on many crops. However, fluxapyroxad can enter the aquatic environment when applied in the field, which has an impact on the aquatic environment. The potential threat and toxicological mechanisms of fluxapyroxad in aquatic organisms remain poorly understood. In this study, zebrafish embryos were exposed to fluxapyroxad to investigate the toxic effects and potential mechanisms of fluxapyroxad. In the acute toxicity test, the lethal sensitivity rank of the zebrafish during the three stages was larvae (0.699 mg/L) > adult fish (0.913 mg/L) > embryo (1.388 mg/L). Fluxapyroxad induced abnormal spontaneous movement, malformations and decreased heartbeat, hatching percentage, and body length of the embryos. In the sublethal toxicity test, succinate dehydrogenase activity was significantly increased in all treatment groups, while the activities of the electron transport chain complex II and ATPase were markedly inhibited in 0.347 and 0.694 mg/L fluxapyroxad groups compared to that of the control group. Exposure to fluxapyroxad resulted in significant increases in MDA production, and GPx activity was significantly reduced at 0.694 mg/L. Moreover, caspase-3 activity was significantly increased in the 0.694 mg/L group, and the expression of the genes related to growth (bmp4 and lox) was inhibited after fluxapyroxad exposure. These results indicated that oxidative stress, cell apoptosis and mitochondrial damage might be the potential mechanism underlying the toxic effects of fluxapyroxad on zebrafish embryos.
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Affiliation(s)
- Hai Lin
- National Joint Engineering Laboratory of Biopesticide Preparation, College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, Zhejiang, China
| | - Fangrui Lin
- National Joint Engineering Laboratory of Biopesticide Preparation, College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, Zhejiang, China
| | - Jing Yuan
- National Joint Engineering Laboratory of Biopesticide Preparation, College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, Zhejiang, China
| | - Feng Cui
- National Joint Engineering Laboratory of Biopesticide Preparation, College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, Zhejiang, China.
| | - Jie Chen
- National Joint Engineering Laboratory of Biopesticide Preparation, College of Forestry and Biotechnology, Zhejiang A & F University, Hangzhou 311300, Zhejiang, China.
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Malott KF, Luderer U. Toxicant effects on mammalian oocyte mitochondria†. Biol Reprod 2021; 104:784-793. [PMID: 33412584 PMCID: PMC8023417 DOI: 10.1093/biolre/ioab002] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 12/28/2022] Open
Abstract
Oocyte mitochondria are unique organelles that establish a founder population in primordial germ cells (PGCs). As the oocyte matures in the postnatal mammalian ovary during folliculogenesis it increases exponentially in volume, and the oocyte mitochondria population proliferates to about 100 000 mitochondria per healthy, mature murine oocyte. The health of the mature oocyte and subsequent embryo is highly dependent on the oocyte mitochondria. Mitochondria are especially sensitive to toxic insults, as they are a major source of reactive oxygen species (ROS), they contain their own DNA (mtDNA) that is unprotected by histone proteins, they contain the electron transport chain that uses electron donors, including oxygen, to generate ATP, and they are important sensors for overall cellular stress. Here we review the effects that toxic insults including chemotherapeutics, toxic metals, plasticizers, pesticides, polycyclic aromatic hydrocarbons (PAHs), and ionizing radiation can have on oocyte mitochondria. This is very clearly a burgeoning field, as our understanding of oocyte mitochondria and metabolism is still relatively new, and we contend much more research is needed to understand the detrimental impacts of exposure to toxicants on oocyte mitochondria. Developing this field further can benefit our understanding of assisted reproductive technologies and the developmental origins of health and disease (DOHaD).
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Affiliation(s)
- Kelli F Malott
- Department of Environmental and Occupational Health, University of California, Irvine, CA 92617, USA
- Department of Medicine, University of California, Irvine CA 92617, USA
| | - Ulrike Luderer
- Department of Environmental and Occupational Health, University of California, Irvine, CA 92617, USA
- Department of Medicine, University of California, Irvine CA 92617, USA
- Developmental and Cell Biology, University of California, Irvine CA 92617, USA
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Rao A, Satheesh A, Nayak G, Poojary PS, Kumari S, Kalthur SG, Mutalik S, Adiga SK, Kalthur G. High-fat diet leads to elevated lipid accumulation and endoplasmic reticulum stress in oocytes, causing poor embryo development. Reprod Fertil Dev 2020; 32:1169-1179. [PMID: 32998795 DOI: 10.1071/rd20112] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 07/28/2020] [Indexed: 11/23/2022] Open
Abstract
The present study was designed to investigate the effect of diet-induced obesity on endoplasmic reticulum (ER) stress in oocytes. Swiss albino mice (3 weeks old) were fed with a high-fat diet (HFD) for 8 weeks. Oocytes were assessed for lipid droplet accumulation, oxidative stress, ER stress and their developmental potential invitro. High lipid accumulation (P<0.01) and elevated intracellular levels of reactive oxygen species were observed in both germinal vesicle and MII oocytes of HFD-fed mice (P<0.05 and P<0.01 respectively compared with control). Further, expression of the ER stress markers X-box binding protein 1 (XBP1), glucose-regulated protein 78 (GRP78), activating transcription factor 4 (ATF4) and activating transcription factor 6 (ATF6) was significantly (P<0.001) higher in oocytes of the HFD than control group. Oocytes from HFD-fed mice exhibited poor fertilisation and blastocyst rates, a decrease in total cell number and high levels of DNA damage (P<0.01) compared with controls. In conclusion, diet-induced obesity resulted in elevated lipid levels and higher oxidative and ER stress in oocytes, which contributed to the compromised developmental potential of embryos.
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Affiliation(s)
- Arpitha Rao
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Aparna Satheesh
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Guruprasad Nayak
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Pooja Suresh Poojary
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Sandhya Kumari
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Sneha Guruprasad Kalthur
- Department of Anatomy, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Srinivas Mutalik
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Satish Kumar Adiga
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India
| | - Guruprasad Kalthur
- Department of Clinical Embryology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576 104, Karnataka State, India; and Corresponding author.
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10
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Hegde S, Poojary KK, Rasquinha R, Crasta DN, Gopalan D, Mutalik S, Siddiqui S, Adiga SK, Kalthur G. Epigallocatechin-3-gallate (EGCG) protects the oocytes from methyl parathion-induced cytoplasmic deformities by suppressing oxidative and endoplasmic reticulum stress. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2020; 167:104588. [PMID: 32527428 DOI: 10.1016/j.pestbp.2020.104588] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Revised: 03/21/2020] [Accepted: 04/17/2020] [Indexed: 06/11/2023]
Abstract
Methyl parathion (MP) is a commonly used organophosphorus insecticide in commercial farming. It is well known that MP exposure can affect the function of nervous, respiratory, cardiovascular and reproductive systems. In our previous report we have demonstrated that MP exposure results in poor oocyte maturation and defective embryo development which is mainly mediated through oxidative stress. The present investigation was designed to explore whether using a potent free radical scavenger like Epigallocatechin-3-gallate (EGCG) can help in reducing the detrimental effects of MP on the oocytes. For the study, germinal vesicle (GV) stage oocytes collected from the ovaries of adult Swiss albino mice were subjected to in vitro maturation (IVM) in the presence or absence of MP (100 μg/mL) and/or EGCG (0.25 μM). MP significantly reduced the nuclear maturation rate, and resulted in poor cytoplasmic organization which was evident from the altered distribution pattern of mitochondria, endoplasmic reticulum and abnormal spindle organization. These changes were associated with significant elevation in oxidative stress and expression of ER stress markers such as 78 kDa Glucose regulated protein (GRP78) as well as X-box binding protein-1 (XBP1) in the oocytes. Further, the oocytes exposed to MP had lower activation rate and developmental potential. Supplementation of EGCG during IVM not only improved the nuclear maturation rate but also reduced the cytoplasmic abnormalities. These beneficial effects appear to be due to mitigation of oxidative and ER stress in oocytes. In conclusion, results of our study indicate that EGCG can help in alleviating MP-induced oocyte abnormalities.
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Affiliation(s)
- Shweta Hegde
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Keerthana Karunakar Poojary
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Rhea Rasquinha
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Daphne Norma Crasta
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Divya Gopalan
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Sazada Siddiqui
- Department of Biology, College of Science, King Khalid University, Abha 61413, Saudi Arabia
| | - Satish Kumar Adiga
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India
| | - Guruprasad Kalthur
- Department of Clinical Embryology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education, Manipal, India.
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11
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Zhang Y, Ji L, Hu Y, Tse LA, Wang Y, Qin K, Ding G, Zhou Y, Yu X, Ouyang F, Zhang J, Gao Y, Tian Y. Exposure to Organophosphate Pesticides and Menstrual Cycle Characteristics in Chinese Preconceptional Women. Am J Epidemiol 2020; 189:375-383. [PMID: 31845721 DOI: 10.1093/aje/kwz242] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 10/08/2019] [Accepted: 10/08/2019] [Indexed: 11/13/2022] Open
Abstract
Organophosphates (OPs) are the most heavily used pesticides in China. The Chinese population, including preconceptional women, is highly exposed, yet little is known regarding the associations between OP exposure and menstruation in humans. We conducted a cross-sectional analysis in women preparing for pregnancy to investigate the relationship between biomarkers of OP exposure and menstrual cycle characteristics. From 2013 to 2015, 627 women visiting free preconception-care clinics at 2 maternity hospitals in Shanghai, China, were included. Information on menstrual cycle characteristics was obtained through questionnaires. OP exposure was assessed by measuring urine concentrations of 6 dialkylphosphate metabolites (dimethylphosphate, dimethylthiophosphate, dimethyldithiophosphate, diethylphosphate, diethylthiophosphate, and diethyldithiophosphate). The relationship between concentrations of dialkylphosphate metabolites and menstrual cycle characteristics was analyzed using multiple linear regression models and logistic regression models. Log-transformed levels of diethyl phosphate metabolites (the sum of diethylphosphate and diethylthiophosphate levels) were related to a higher risk of irregularity of menstrual cycles (adjusted odds ratio = 2.36, 95% confidence interval: 1.28, 4.34). Subjects with a higher concentration of diethyl phosphate metabolites (log-transformed) had a shorter duration of menstrual bleeding (adjusted β = -0.33, 95% confidence interval: -0.64, -0.02). The findings suggest that OP exposure may be associated with alterations in menstrual function in preconceptional women.
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Affiliation(s)
- Yan Zhang
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Ji
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi Hu
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Center for Medical Bioinformatics, Shanghai Children’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Lap Ah Tse
- Division of Occupational and Environmental Health, JC School of Public Health and Primary Care, Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yiwen Wang
- MOE-Shanghai Key Laboratory of Children’s Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Neonatology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Kaili Qin
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guodong Ding
- MOE-Shanghai Key Laboratory of Children’s Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Respiratory Medicine, Shanghai Children’s Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yijun Zhou
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaodan Yu
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Developmental and Behavioral Pediatrics, Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fengxiu Ouyang
- MOE-Shanghai Key Laboratory of Children’s Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun Zhang
- MOE-Shanghai Key Laboratory of Children’s Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | | | - Ying Tian
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- MOE-Shanghai Key Laboratory of Children’s Environmental Health, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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12
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Antidiabetic drug metformin affects the developmental competence of cleavage-stage embryos. J Assist Reprod Genet 2020; 37:1227-1238. [PMID: 32335799 DOI: 10.1007/s10815-020-01709-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 01/30/2020] [Indexed: 12/22/2022] Open
Abstract
PURPOSE Metformin is the most commonly prescribed drug in the management of metabolic disorders such as polycystic ovarian syndrome (PCOS) and gestational diabetes in women of reproductive age. Insulin-sensitizing effect of metformin helps in improving from PCOS features such as hyperandrogenism, anovulation, and infertility. However, its ability to cross placental barrier raises concern about safety of the drug on early embryonic development. In this study, we evaluated the effect of metformin on the ovarian function and embryo development. METHODS Adult Swiss albino female mice were administered with metformin (0, 50, 100, and 200 mg/kg body weight) for 4 weeks and assessed for reproductive function and preimplantation embryo development. Further, effect of metformin (0, 10, 25, 50, 100, 250, and 500 μg/mL) exposure to 2-cell-stage embryos was tested under in vitro conditions. RESULTS Metformin did not alter the body weight, blood glucose, ovarian weight, and follicular reserve. However, the early embryo development was significantly affected in mice treated with metformin in vivo at highest dose. Moreover, embryos which were exposed to metformin in vitro showed dose-dependent decline in blastocyst rate and hatching rate. Furthermore, at highest concentration of metformin (500 μg/mL), all the embryos were arrested at compaction stage. CONCLUSION The study revealed that metformin affects the early embryonic development and raises concern about its use during conception.
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13
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Liu H, Liu Z, Lu T, Zhang L, Cheng J, Fu X, Hou Y. Toxic effects of 1-(N-methyl-N-nitrosamino)-1-(3-pyridinyl)-4-butanal on the maturation and subsequent development of murine oocyte. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 181:370-380. [PMID: 31212185 DOI: 10.1016/j.ecoenv.2019.06.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/31/2019] [Accepted: 06/02/2019] [Indexed: 06/09/2023]
Abstract
Cigarette smoke can cause follicle destruction and oocyte dysfunction and increase the risks of spontaneous abortion, stillbirth, and tubal ectopic pregnancy, affecting female reproductive health. Third-hand smoke (THS) is residual tobacco smoke existing in the environment long after cigarettes are extinguished, which can react with other compounds in the environment to produce secondary pollutants. However, the effects of THS on the female reproductive system, particularly the maturation of the oocyte, remain unclear. 1-(N-methyl-N-nitrosamino)-1-(3-pyridinyl)-4-butanal (NNA), a component of THS, is a logical biomarker of THS exposure. Thus, this study aims to investigate the toxic effects of NNA on the maturation of murine oocytes and subsequent developmental competence. Herein, murine oocytes were exposed to 0 (control group), 0.1, 1.0, 10, and 50 μM NNA for 24 h. Our results showed that NNA exposure reduced the polar body extrusion rate by causing 8-oxo-deoxyguanosine (8-OHdG) to increase and disrupting the meiotic spindle morphology by inhibiting ERK1/2 activation during in vitro maturation. Additionally, NNA exposure resulted in cleavage and blastocyst rate reduction by altering DNA and histone methylations by reducing 5 mC and H3K4me2 levels and by inducing apoptosis caused by mitochondrial dysfunction and reactive oxygen species accumulation, as shown by the increased superoxide dismutase mRNA level and by the decreased Bcl-x mRNA level. Collectively, our results demonstrate that NNA exposure reduces the maturation and developmental capability of murine oocytes by increasing the risk of DNA damage and abnormal spindle morphology, altering epigenetic modifications, and inducing apoptosis, suggesting the toxic effect of NNA on mammalian productive health.
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Affiliation(s)
- Huage Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China
| | - Zhiqiang Liu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China
| | - Tengfei Lu
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China
| | - Luyao Zhang
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China
| | - Jinmei Cheng
- (b)Nantong University Medical School, Qixiu Rd 19, Chongchuan District, 226001 Nantong, China
| | - Xiangwei Fu
- Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and National Engineering Laboratory for Animal Breeding, College of Animal Science and Technology, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China
| | - Yunpeng Hou
- State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Yuanmingyuan West Rd 2, Haidian District, 100193 Beijing, China.
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14
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Upson K, Chin HB, Marsh EE, Baird DD. Intrauterine, Infant, and Childhood Factors and Ovarian Reserve in Young African American Women. J Womens Health (Larchmt) 2019; 28:1711-1720. [PMID: 30638418 DOI: 10.1089/jwh.2018.7382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Background: Ovarian toxic exposures during early development may contribute to reduced ovarian reserve in adulthood. Materials and Methods: We explored a range of intrauterine, infant, and childhood factors in relation to a biomarker of ovarian reserve, anti-Müllerian hormone (AMH) concentrations, in adulthood. We conducted a cross-sectional exploratory study of 1600 African American women 23-35 years of age residing in the Detroit, Michigan metropolitan area, who had serum AMH measurements (Ansh Labs PicoAMH enzyme-linked immunosorbent assay) and no previous polycystic ovarian syndrome diagnosis. Information on 32 intrauterine, infant, and childhood factors was ascertained by self-administered questionnaires, with 87% of participants receiving assistance from mothers. The percent differences in AMH concentrations in relation to early-life factors and 95% confidence intervals (CIs) were estimated using multivariable linear regression, adjusting for age, current hormonal contraceptive use, and body mass index. Results: Of the early-life factors evaluated in this study, two maternal pregnancy factors were associated with lower AMH concentrations in adult participants. Participants whose mothers lived or worked on a farm (vs. neither lived nor worked on a farm) when pregnant with the participant had 42% lower AMH concentrations (95% CI = -62 to -9). Among participants whose mothers lived in Michigan when pregnant with the participant (n = 1238), maternal residence in Detroit for at least a month was associated with 22% lower AMH concentrations (95% CI = -34 to -8) in the participant. Conclusions: Further research is merited to replicate our findings and identify the aspects of maternal farm exposure and Detroit residence that may be associated with lower AMH concentrations.
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Affiliation(s)
- Kristen Upson
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - Helen B Chin
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
| | - Erica E Marsh
- Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, University of Michigan Medical School, Ann Arbor, Michigan
| | - Donna D Baird
- Epidemiology Branch, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina
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15
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Teng M, Zhu W, Wang D, Yan J, Qi S, Song M, Wang C. Acute exposure of zebrafish embryo (Danio rerio) to flutolanil reveals its developmental mechanism of toxicity via disrupting the thyroid system and metabolism. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 242:1157-1165. [PMID: 30114598 DOI: 10.1016/j.envpol.2018.07.092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 07/09/2018] [Accepted: 07/21/2018] [Indexed: 06/08/2023]
Abstract
Flutolanil, an amide fungicide, had been detected frequently in aquatic environments; it is thus potentially a great risk to aquatic organisms and human health. Therefore, we investigated the developmental toxicity and the potential mechanism of thyroid endocrine disruption induced by flutolanil based on 1H NMR metabolomics analysis using a zebrafish model. Hatching of zebrafish embryo exposed to flutolanil was inhibited at 72 hpf (hour post-fertilization) and survival and body length at 96 hpf. In addition, increased teratogenic effects on embryos were observed, including pericardial edema, spine deformation, and tail malformation. Furthermore, flutolanil induced slower heartbeat and larger pericardial area in the treated groups than control group. Transcription levels of TRH, TSHR, TPO, Dio1, TRα, and UGT1ab were significantly altered after flutolanil exposure. Metabolomics analysis further indicated that flutolanil induced alterations of energy, amino acids, nucleotide, lipids, and fatty acid metabolism. Our study also indicated that flutolanil exposure led to alterations of endogenous metabolites, which induced the thyroid endocrine disruption in zebrafish. Ultimately, embryonic developmental toxicity was caused by flutolanil.
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Affiliation(s)
- Miaomiao Teng
- College of Sciences, China Agricultural University, Beijing, 100193, China
| | - Wentao Zhu
- College of Sciences, China Agricultural University, Beijing, 100193, China
| | - Dezhen Wang
- College of Sciences, China Agricultural University, Beijing, 100193, China
| | - Jin Yan
- College of Sciences, China Agricultural University, Beijing, 100193, China
| | - Suzhen Qi
- Institute of Apiculture Research, Chinese Academy of Agricultural Sciences, Beijing, 100093, China
| | - Min Song
- Tai'an Academy of Agricultural Sciences, Tai'an, 271000, China
| | - Chengju Wang
- College of Sciences, China Agricultural University, Beijing, 100193, China.
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16
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Hu Y, Ji L, Zhang Y, Shi R, Han W, Tse LA, Pan R, Wang Y, Ding G, Xu J, Zhang Q, Gao Y, Tian Y. Organophosphate and Pyrethroid Pesticide Exposures Measured before Conception and Associations with Time to Pregnancy in Chinese Couples Enrolled in the Shanghai Birth Cohort. ENVIRONMENTAL HEALTH PERSPECTIVES 2018; 126:077001. [PMID: 30044228 PMCID: PMC6108871 DOI: 10.1289/ehp2987] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 05/08/2018] [Accepted: 05/10/2018] [Indexed: 05/20/2023]
Abstract
BACKGROUND Pesticides have been associated with reproductive disorders, but there is limited research on pesticide exposures and human fertility. OBJECTIVE We aimed to investigate the effects of preconception exposure to pesticides on time to pregnancy (TTP) and on infertility in a general population of couples planning to become pregnant in Shanghai, China. METHOD A total of 615 women who were planning a pregnancy were enrolled before conception and were prospectively followed for 1 y to observe their TTP. Preconception pesticide exposures were assessed by measuring urinary metabolites of organophosphates (OPs) and pyrethroids (PYRs). Fecundability odds ratios (FORs) and odds ratios (ORs) of infertility were estimated using Cox and logistic regression models, respectively. All analyses were repeated after restricting the sample to nulliparous women (n=569). RESULTS After adjusting for age, prepregnancy BMI, current smoking, education, annual household income, age at menarche, and two items from the Perceived Stress Scale (PSS-10), women in the highest quartile of diethylthiophosphate (DETP; an OP metabolite) had significantly longer TTP [adjusted FOR=0.68 (95% CI: 0.51, 0.92)] and increased infertility [adjusted OR=2.17 (95% CI: 1.19, 3.93)] compared with women in the lowest quartile. The highest versus lowest quartile of 3-phenoxybenzoic acid (3PBA; a PYR metabolite) was associated with longer TTP and infertility, with significant associations in nulliparous women [adjusted FOR=0.72 (95% CI: 0.53, 0.98); adjusted OR for infertility=2.03 (95% CI: 1.10, 3.74)]. CONCLUSION Our study provides some of the first evidence that preconception OP and PYR exposures are associated with decreased fertility in Chinese couples. Given that OPs and PYRs are rapidly metabolized in humans, more studies are needed to confirm our findings. https://doi.org/10.1289/EHP2987.
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Affiliation(s)
- Yi Hu
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lin Ji
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yan Zhang
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Rong Shi
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenchao Han
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lap Ah Tse
- Division of Occupational and Environmental Health, Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Rui Pan
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yiwen Wang
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Guodong Ding
- Department of Pediatrics, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jian Xu
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qingying Zhang
- Obstetrical Department, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, China
| | - Yu Gao
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ying Tian
- Department of Environmental Health, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- MOE-Shanghai Key Laboratory of Children's Environmental Health, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China
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17
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Kalthur G, Salian SR, Nair R, Mathew J, Adiga SK, Kalthur SG, Zeegers D, Hande MP. Distribution pattern of cytoplasmic organelles, spindle integrity, oxidative stress, octamer-binding transcription factor 4 (Oct4) expression and developmental potential of oocytes following multiple superovulation. Reprod Fertil Dev 2018; 28:2027-2038. [PMID: 26173898 DOI: 10.1071/rd15184] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Accepted: 06/09/2015] [Indexed: 11/23/2022] Open
Abstract
The aim of the present study was to determine the effects of repeated superovulation on oocyte quality and embryo developmental potential. Female Swiss albino mice were injected with 5IU pregnant mare's serum gonadotropin followed 48h by 10IU human chorionic gonadotropin. Mice were superovulated up to four times with a gap of 7 days between each superovulation cycle. Ovarian weight increased significantly with an increasing number of superovulation cycles. Although the first stimulation cycle resulted in a threefold increase in the number of oocytes, the number of oocytes decreased gradually after subsequent stimulations. Increased cytoplasmic fragmentation, abnormal mitochondrial distribution, aggregation of Golgi apparatus, spindle damage, increased intracellular oxidative stress and a decrease in expression of octamer-binding transcription factor 4 (Oct4) expression were observed in these oocytes. Further, embryos derived from mice subjected to multiple stimulation cycles exhibited a low blastocyst rate, decreased hatching rate and increased apoptosis in blastocysts. In conclusion, the present study demonstrates that repeated superovulation adversely affects mouse oocyte quality by altering the distribution of cytoplasmic organelles, increasing oxidative stress and decreasing Oct4 expression, resulting in poor developmental potential of the embryos.
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Affiliation(s)
- Guruprasad Kalthur
- Division of Clinical Embryology, Department of Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, 576104, India
| | - Sujith Raj Salian
- Division of Clinical Embryology, Department of Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, 576104, India
| | - Ramya Nair
- Division of Clinical Embryology, Department of Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, 576104, India
| | - Jemey Mathew
- Division of Clinical Embryology, Department of Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, 576104, India
| | - Satish Kumar Adiga
- Division of Clinical Embryology, Department of Obstetrics and Gynecology, Kasturba Medical College, Manipal University, Manipal, 576104, India
| | | | - Dimphy Zeegers
- Genome Stability Laboratory, Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
| | - M Prakash Hande
- Genome Stability Laboratory, Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
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18
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Jia Z, Feng Z, Wang L, Li H, Wang H, Xu D, Zhao X, Feng D, Feng X. Resveratrol reverses the adverse effects of a diet-induced obese murine model on oocyte quality and zona pellucida softening. Food Funct 2018; 9:2623-2633. [DOI: 10.1039/c8fo00149a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Resveratrol exerts protective effects on ovarian injury, decreased oocyte quality and zona pellucida softening due to obesity.
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Affiliation(s)
- Zhenzhen Jia
- State Key Laboratory of Medicinal Chemical Biology
- The Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Science
- Nankai University
| | - Zeyang Feng
- The Institute of Robotics and Automatic Information Systems
- Nankai University
- Tianjin 300071
- China
| | - Lining Wang
- State Key Laboratory of Medicinal Chemical Biology
- The Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Science
- Nankai University
| | - Hao Li
- School of Medicine
- Nankai University
- Tianjin 300071
- China
| | - Hongyu Wang
- State Key Laboratory of Medicinal Chemical Biology
- The Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Science
- Nankai University
| | - Dingqi Xu
- State Key Laboratory of Medicinal Chemical Biology
- The Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Science
- Nankai University
| | - Xin Zhao
- The Institute of Robotics and Automatic Information Systems
- Nankai University
- Tianjin 300071
- China
| | - Daofu Feng
- Department of General Surgery
- Tianjin Medical University General Hospital
- Tianjin 300052
- China
| | - Xizeng Feng
- State Key Laboratory of Medicinal Chemical Biology
- The Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Science
- Nankai University
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Abstract
Parthenotes are characterized by poor in vitro developmental potential either due to the ploidy status or the absence of paternal factors. In the present study, we demonstrate the beneficial role of sperm-derived factors (SDF) on the in vitro development of mouse parthenotes. Mature (MII) oocytes collected from superovulated Swiss albino mice were activated using strontium chloride (SrCl2) in the presence or absence of various concentrations of SDF in M16 medium. The presence of SDF in activation medium did not have any significant influence on the activation rate. However, a significant increase in the developmental potential of the embryos and increased blastocyst rate (P < 0.01) was observed at 50 µg/ml concentration. Furthermore, the activated oocytes from this group exhibited early cleavage and cortical distribution of cortical granules that was similar to that of normally fertilized zygotes. Culturing 2-cell stage parthenotes in the presence of SDF significantly improved the developmental potential (P < 0.05) indicating that they also play a significant role in embryo development. In conclusion, artificial activation of oocytes with SDF can improve the developmental potential of parthenotes in vitro.
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20
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Nair R, Mutalik S, Dasappa JP, Kalthur G, Adiga SK. Haploid parthenotes express differential response to in vitro exposure of ammonia compared to normally fertilized embryos. Biochem Biophys Res Commun 2017; 486:88-93. [PMID: 28267432 DOI: 10.1016/j.bbrc.2017.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Accepted: 03/02/2017] [Indexed: 10/20/2022]
Abstract
In the present study, we assessed whether absence of paternal genome imparts any differential response in embryos to chemical stress such as ammonia. Parthenogenesis was induced in MII stage oocytes using 10 mM SrCl2 in M16 medium. Parthenotes and normally fertilized embryos at 2 cell stage were exposed to different concentrations of ammonia and cultured till blastocyst. Exposure of ammonia to normally fertilized embryos resulted in significant decrease in the developmental potential (p < 0.0001) and blastocyst quality (p < 0.001). Whereas, in parthenotes, even though lower concentrations of ammonia did not have any effect, at 200 μM concentration the blastocyst rate was two times higher than control. The baseline apoptotic index was higher in parthenotes compared to normally fertilized embryos, which further increased after ammonium exposure (p < 0.001). Unlike in normally fertilized embryos ammonia exposure altered the mitochondrial distribution pattern and lead to increased expression of Oct4, Nanog and Na+/K+ ion exchange channel, while the cytochrome C expression was downregulated. This indicates that haploidy and/or absence of paternal factors in the embryo results in differential tolerance to stress induced by ammonia.
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Affiliation(s)
- Ramya Nair
- Clinical Embryology, Kasturba Medical College, Manipal University, Manipal 576104, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, India
| | | | - Guruprasad Kalthur
- Clinical Embryology, Kasturba Medical College, Manipal University, Manipal 576104, India.
| | - Satish Kumar Adiga
- Clinical Embryology, Kasturba Medical College, Manipal University, Manipal 576104, India
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21
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Yeast Biosensors for Detection of Environmental Pollutants: Current State and Limitations. Trends Biotechnol 2016; 34:408-419. [DOI: 10.1016/j.tibtech.2016.01.007] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/19/2016] [Accepted: 01/20/2016] [Indexed: 01/17/2023]
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Patnaik R, Padhy RN. Evaluation of geno-toxicity of methyl parathion and chlorpyrifos to human liver carcinoma cell line (HepG2). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:8492-8499. [PMID: 26782680 DOI: 10.1007/s11356-015-5963-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Accepted: 12/10/2015] [Indexed: 06/05/2023]
Abstract
Insecticides and their residues are known to cause several types of ailments in human body. An attempt had been made to assess digitally the geno-toxicity of methyl parathion (MP) and chlorpyrifos (CP) to in vitro-grown HepG2 cell line, with Hoechst 33342 staining, comet, and micronucleus assays. Additionally, "acridine orange/ethidium bromide" (AO/EB) staining was done for the determination of insecticide-induced cytotoxicity, in corollary. Hoechst 33342 staining of cells revealed a decrease in live cell counts at 8-40 mg/L MP and 15-70 mg/L CP. Moreover, nuclear fragmentations in ranges 8 to 40 mg/L MP and 15 to 70 mg/L CP were recorded dependant on individual doses, increasingly with concomitant increases in comet tail length values. DNA fragmentation index measured in comet assays was 94.3 ± 0.57 at 40 mg/L MP and 93.3 ± 2.08 at 70 mg/L CP. Average micronuclei number was 59.0 ± 2.00 at 40 mg/L MP and 62.6 ± 1.52 at 70 mg/L CP, per 1000 cell nuclei, in micronucleus assay. Minimum inhibitory concentration (MIC) values with AO/EB staining for monitoring cytotoxicity were 4 and 10 mg/L for MP and CP, respectively. Lethal concentration50 (LC50) values were 20.89 mg/L MP and 79.43 mg/L CP in AO/EB staining, for cytotoxicity with probit analyses. It was concluded that MP was comparatively more geno-toxic than CP to HepG2 cell. It was discernible that at lower levels of each insecticide, geno-toxicity was recorded in comparison to cytotoxicity.
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Affiliation(s)
- Rajashree Patnaik
- Central Research Laboratory, Institute of Medical Sciences & Sum Hospital, Siksha 'O' Anusandhan University, Kalinga Nagar, Bhubaneswar, Odisha, 751003, India
| | - Rabindra Nath Padhy
- Central Research Laboratory, Institute of Medical Sciences & Sum Hospital, Siksha 'O' Anusandhan University, Kalinga Nagar, Bhubaneswar, Odisha, 751003, India.
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Nayak G, Honguntikar SD, Kalthur SG, D'Souza AS, Mutalik S, Setty MM, Kalyankumar R, Krishnamurthy H, Kalthur G, Adiga SK. Ethanolic extract of Moringa oleifera Lam. leaves protect the pre-pubertal spermatogonial cells from cyclophosphamide-induced damage. JOURNAL OF ETHNOPHARMACOLOGY 2016; 182:101-109. [PMID: 26875643 DOI: 10.1016/j.jep.2016.02.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 01/12/2016] [Accepted: 02/06/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Moringa oleifera Lam. is widely cultivated in Asian and African countries for its medicinal and dietary significance. The leaves are highly nutritious and are known to possess various biological activities. MATERIALS AND METHODS Pre-pubertal Swiss albino male mice were injected with single dose of cyclophosphamide (CP, 200mg/kg body weight) or ethanolic extract of Moringa oleifera leaves (MOE, 100mg/kg body weight) intraperitoneally. In combination group, MOE was administered 24h prior to CP injection. RESULTS CP induced a significant decrease in testicular weight (p<0.01) and depletion of germ cells (p<0.001) and higher level of DNA damage (p<0.001) compared to control. The expression of P53, Bax, Cytochrome C (Cyt C) was increased while there was a decrease in the expression of Bcl2, c-Kit and Oct4. Administration of MOE 24h prior to CP treatment ameliorated the depletion (p<0.001), DNA damage (p<0.001) and apoptosis (p<0.01) of germ cells induced by CP. The mitigating effect of MOE appears to be mediated by up-regulating the expression of c-Kit and Oct4 transcripts in P53-independent manner. CONCLUSION MOE protects the spermatogonial cells from CP-induced damage by modulating the apoptotic response elicited by CP and therefore can be considered as an efficient method of male fertility preservation.
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Affiliation(s)
- Guruprasad Nayak
- Center of Excellence in Clinical Embryology, Level 2, Central Research Lab, Kasturba Medical College, Manipal University, Manipal-576104, Karnataka, India
| | - Sachin D Honguntikar
- Center of Excellence in Clinical Embryology, Level 2, Central Research Lab, Kasturba Medical College, Manipal University, Manipal-576104, Karnataka, India
| | - Sneha Guruprasad Kalthur
- Department of Anatomy, Kasturba Medical College, Manipal University, Manipal-576104, Karnataka, India
| | - Antony Sylvan D'Souza
- Department of Anatomy, Kasturba Medical College, Manipal University, Manipal-576104, Karnataka, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal-576104, Karnataka, India
| | - Manjunath M Setty
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal-576104, Karnataka, India
| | - Raksha Kalyankumar
- National Center for Biological Sciences, Tata Institute of Fundamental Research, Bengaluru-560065, India
| | | | - Guruprasad Kalthur
- Center of Excellence in Clinical Embryology, Level 2, Central Research Lab, Kasturba Medical College, Manipal University, Manipal-576104, Karnataka, India.
| | - Satish Kumar Adiga
- Center of Excellence in Clinical Embryology, Level 2, Central Research Lab, Kasturba Medical College, Manipal University, Manipal-576104, Karnataka, India
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Yang Y, Qi S, Wang D, Wang K, Zhu L, Chai T, Wang C. Toxic effects of thifluzamide on zebrafish (Danio rerio). JOURNAL OF HAZARDOUS MATERIALS 2016; 307:127-136. [PMID: 26780700 DOI: 10.1016/j.jhazmat.2015.12.055] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Revised: 12/10/2015] [Accepted: 12/28/2015] [Indexed: 06/05/2023]
Abstract
Thifluzamide is a fungicide widely used to control crop diseases, and it therefore constitutes a hazard to the environment. In this study, zebrafish were selected to assess the aquatic toxicity of thifluzamide. The acute and development toxicity of thifluzamide to embryos, larvae, and adult zebrafish were measured and the corresponding 96h-LC50 values were as follows: adult fish (4.19mg/L) <larvae (3.52mg/L) <embryos (3.08mg/L). A large suite of symptoms was found in these three stages of zebrafish, including abnormal spontaneous movement, slow heartbeat, hatching inhibition, growth regression, and morphological deformities. In addition, for adult zebrafish, distinct pathological changes were noted in liver and kidney 21 days post exposure (dpe) to 0.19, 1.33, and 2.76mg/L. Liver damage was more severe than kidney damage. In another 28 days exposure of adult zebrafish to 0.019, 0.19, and 1.90mg/L, negative changes in mitochondrial structure and enzymes activities [succinate dehydrogenase (SDH) and respiratory chain complexes] were found. These might be responsible for the adverse expansion of the apoptosis- and immune-related genes, which would facilitate the action of these factors in programmed cell death and might play a key role during the toxic events.
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Affiliation(s)
- Yang Yang
- College of Sciences, China Agricultural University, Beijing, People's Republic of China
| | - Suzhen Qi
- College of Sciences, China Agricultural University, Beijing, People's Republic of China
| | - Donghui Wang
- Plant Developmental Biology, College of Life Sciences, Peking University, 5 Yiheyuan Road, Beijing 100871, People's Republic of China
| | - Kai Wang
- College of Sciences, China Agricultural University, Beijing, People's Republic of China
| | - Lizhen Zhu
- College of Sciences, China Agricultural University, Beijing, People's Republic of China
| | - Tingting Chai
- College of Sciences, China Agricultural University, Beijing, People's Republic of China
| | - Chengju Wang
- College of Sciences, China Agricultural University, Beijing, People's Republic of China.
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Yılmaz D, Kalay M, Dönmez E, Yılmaz N. Assessment of biological effects of environmental pollution in Mersin Bay (Turkey, northeastern Mediterranean Sea) using Mullus barbatus and Liza ramada as target organisms. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 208:361-370. [PMID: 26552534 DOI: 10.1016/j.envpol.2015.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 09/25/2015] [Accepted: 10/01/2015] [Indexed: 06/05/2023]
Abstract
The increasing emphasis on the assessment and monitoring of marine ecosystems has revealed the need to use appropriate biological indicators for these areas. Enzyme activities and histopathology are increasingly being used as indicators of environmental stress since they provide a definite biological end-point of pollutant exposure. As part of an ecotoxicological assessment of Mersin Bay, EROD enzyme activity and histopathological response in selected organs and tissues of two species of fish, Mullus barbatus (red mullet) and Liza ramada (thinlip grey mullet), captured from area were examined. Pollutant (Organochlorines (OC), alkylphenols (APs) and BPA) levels and biomarker responses in tissue samples were evaluated together for their potential to alter the metabolism and cellular aspects in liver and gonad. Elevated induction of EROD activity and histopathological alterations in contaminated samples from Mersin Bay was observed compared to reference site indicating the exposure to potential pollutants.
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Affiliation(s)
- Doruk Yılmaz
- Faculty of Fisheries, Mersin University, Yenisehir Kampusu, P.O. Box 33169 Mersin, Turkey.
| | - Mustafa Kalay
- Faculty of Fisheries, Mersin University, Yenisehir Kampusu, P.O. Box 33169 Mersin, Turkey
| | - Erdem Dönmez
- Faculty of Fisheries, Mersin University, Yenisehir Kampusu, P.O. Box 33169 Mersin, Turkey
| | - Nejat Yılmaz
- Department of Histology and Embryology, Faculty of Medicine, Mersin University, Ciftlikkoy Kampusu, P.O. Box 33169 Mersin, Turkey
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Liu Y, Zhang C, Liao X, Luo Y, Wu S, Wang J. Hydrolysis mechanism of methyl parathion evidenced by Q-Exactive mass spectrometry. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:19747-19755. [PMID: 26278904 DOI: 10.1007/s11356-015-5169-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 08/06/2015] [Indexed: 06/04/2023]
Abstract
Organophosphorus pesticides (OPPs), a kind of widely used pesticides, are currently attracting great attention due to their adverse effects on human central nervous systems, particularly in children. Although the hydrolysis behavior of OPPs has been studied well, its hydrolysis mechanism remained controversial, especially at various pH conditions, partly due to their relatively complex structures and abundant moieties that were prone to be attacked by nucleophiles. The Q-Exactive mass spectrometer, part of those hybrid high-resolution mass spectrometers (HRMS), was used to determine hydrolysis products of methyl parathion (MP), a kind of OPPs in situ buffer aqueous solution with pH ranging from 1 to 13 in this study. Most of the complex hydrolysis products of MP were identified due to the high sensitivity and accuracy of HRMS. The results demonstrated that the hydrolysis rate and pathway of MP were strong pH dependent. With the increase of pH, the hydrolysis rate of MP increased, and two different reaction mechanisms were identified: SN (2)@P pathway dominated the hydrolysis process at high pH (e.g., pH ≥ 11) while SN (2)@C was the main behavior at low pH (e.g., pH ≤ 9). This study helps understand the hydrolysis mechanism of OPPs at various pH and extends the use of Q-Exactive mass spectrometry in identifying organic pollutants and their degradation products in environmental matrices.
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Affiliation(s)
- Yuan Liu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Caixiang Zhang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China.
| | - Xiaoping Liao
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Yinwen Luo
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Sisi Wu
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
| | - Jianwei Wang
- State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences, Wuhan, 430074, People's Republic of China
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A selective and sensitive sensor based on highly dispersed cobalt porphyrin-Co3O4-graphene oxide nanocomposites for the detection of methyl parathion. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-3079-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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28
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Argentin G, Divizia M, Cicchetti R. Oxidative Stress, Cytotoxicity, and Genotoxicity Induced by Methyl Parathion in Human Gingival Fibroblasts: Protective Role of Epigallocatechin-3-Gallate. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2015; 78:1227-1240. [PMID: 26479333 DOI: 10.1080/15287394.2015.1079582] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Organophosphorous (OP) compounds are pesticides frequently released into the environment because of extensive use in agriculture. Among these, methyl parathion (mPT) recently received attention as a consequence of illegal use. The predominant route of human exposure to mPT is via inhalation, but inadvertent consumption of contaminated foods and water may also occur. The goal of this study was to investigate the in vitro effects of mPT on cells in the oral cavity and evaluate the potential protective role of epigallocathechin-3-gallate (EGCG) on these effects. Human gingival fibroblasts (HGF) were exposed to 10, 50, or 100 μ g/ml mPT for 24 h and assessed for oxidative stress, as evidenced by reactive generation of oxygen species (ROS), induction of apoptotic cell death, DNA damage (comet assay and cytochinesis-block micronucleus test), and nitric oxide (NO) production. The results showed that mPT produced significant oxidative stress, cytotoxicity, and genotoxicity and increased NO levels through stimulation of inducible NO synthase expression. Finally, data demonstrated that EGCG (10, 25, or 50 μ M) was able to inhibit the pesticide-induced effects on all parameters studied. Data indicate that cytotoxic and genotoxic effects may be associated with oxidative stress induced by mPT observed in HGF cultures and that EGCG plays a protective role via antioxidant activities.
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Affiliation(s)
- Gabriella Argentin
- a Department of Clinical Sciences and Translational Medicine, Faculty of Medicine , University of Tor Vergata , Rome , Italy
| | - Maurizio Divizia
- b Department of Experimental Medicine and Surgery, Faculty of Medicine , University of Tor Vergata , Rome , Italy
| | - Rosadele Cicchetti
- a Department of Clinical Sciences and Translational Medicine, Faculty of Medicine , University of Tor Vergata , Rome , Italy
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