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Kozubek A, Katarzyńska-Banasik D, Kowalik K, Grzegorzewska AK, Hrabia A, Sechman A. Nitrophenols disrupt the expression and activity of biotransformation enzymes (CYP3A and COMT) in chicken ovarian follicles in vivo and in vitro. J Appl Toxicol 2024; 44:756-769. [PMID: 38238931 DOI: 10.1002/jat.4573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/27/2023] [Accepted: 12/10/2023] [Indexed: 04/16/2024]
Abstract
Nitrophenols are environmental pollutants and xenobiotics, the main sources of which are diesel exhaust fumes and pesticides. The biotransformation processes that take place in the liver are defence mechanisms against xenobiotics, such as nitrophenols. Our previous study showed that the chicken ovary is an additional xenobiotic detoxification place and that nitrophenols disrupt steroidogenesis in chicken ovarian follicles. Therefore, the present study aimed to determine the in vivo and in vitro effects of 4-nitrophenol (PNP) and 3-methyl-4-nitrophenol (PNMC) on the expression and activity of phase I (CYP3A) and phase II (COMT) biotransformation enzymes in chicken ovary. In an in vivo study, hens were treated with a vehicle or 10 mg PNP or PNMC/kg b.wt. per day for 6 days. In an in vitro study, prehierarchical white and yellowish follicles, as well as the granulosa and theca layers of the three largest preovulatory follicles (F3, F2 and F1), were isolated and then incubated in a control medium or medium supplemented with PNP (10-6 M) or PNMC (10-6 M) for 24 or 48 h. Both in vivo and in vitro studies showed that nitrophenols exert tissue- and compound-dependent (PNP or PNMC) effects on CYP3A and COMT gene (real-time PCR) protein (Western blot) expression and their activity (colorimetric methods). The inhibitory effect of nitrophenols in vivo on the activity of biotransformation enzymes suggest that the ovary has the capacity to metabolise PNP and PNMC.
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Affiliation(s)
- Anna Kozubek
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, Krakow, 30-059, Poland
| | - Dorota Katarzyńska-Banasik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, Krakow, 30-059, Poland
| | - Kinga Kowalik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, Krakow, 30-059, Poland
| | - Agnieszka K Grzegorzewska
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, Krakow, 30-059, Poland
| | - Anna Hrabia
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, Krakow, 30-059, Poland
| | - Andrzej Sechman
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, Krakow, 30-059, Poland
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Priyadarshini E, Minzar M, Pandey S, Rawat K. Synergistic reduction of nitrophenols by Au-CDs nanoconjugates with NaBH 4. NANOTECHNOLOGY 2024; 35:275101. [PMID: 38502954 DOI: 10.1088/1361-6528/ad355a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 03/19/2024] [Indexed: 03/21/2024]
Abstract
Developing sustainable and innovative approaches for the efficient reduction of nitrophenols is crucial for environmental remediation, for managing health concerns posed by their widespread presence as hazardous pollutants in industrial effluents and contaminated water. We report the use of 12.9 ± 1 nm (TEM data) sized gold carbon dot nanoconjugates (Au@CDs) for catalytic conversion of o, m, p-nitrophenols to aminophenols by sodium borohydride. A simple approach was followed to synthesize ultra-small and highly stable Au@CDs, using citric acid and PEG as reducing and stabilizing agents. X-ray diffraction analysis verified the formation of nano-crystalline nanoconjugates. These nanoconjugates showed a remarkable catalytic activity in the range of 0.22-0.33 s-1(varying with nanoconjugate concentration) which was much higher compared to conventional chemical methods of reduction. All the catalytic reaction experiments were performed at room temperature (27 ± 2 °C). Furthermore, an increase in rate constant was observed with increasing concentration of nanoconjugates. The catalytic activity of Au@CDs nanoconjugates was observed to be in order of m-nitrophenol > o-nitrophenol > p-nitrophenol with apparent rate constant (kaap) values of 0.068, 0.043 and 0.031, respectively. Comparative analysis with GNPs, CDs and Au@CDs nanoconjugates stated that the nanoconjugates had superior catalytic activity. The research can have significant implications in the development of new strategies for environmental remediation and biomedical applications.
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Affiliation(s)
| | - Mohd Minzar
- Department of Chemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Saurabh Pandey
- Department of Biochemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Kamla Rawat
- Department of Chemistry, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
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Dehghani S, Moshfeghinia R, Ramezani M, Vali M, Oskoei V, Amiri-Ardekani E, Hopke P. Exposure to air pollution and risk of ovarian cancer: a review. REVIEWS ON ENVIRONMENTAL HEALTH 2023; 38:439-450. [PMID: 35575767 DOI: 10.1515/reveh-2021-0129] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 04/15/2022] [Indexed: 06/15/2023]
Abstract
OBJECTIVES Exposure to air pollution has destructive health consequences and a potential role in ovarian cancer etiology. We conducted a systematic review of the studies assessing the associations between ovarian malignancy and exposure to air pollutants. CONTENT The included studies were categorized based on types of measured ambient air pollutants, including particulate matter (five studies), gases (two studies), air pollutant mixtures (eight studies), and traffic indicators for air pollution (only one study). Because of the heterogeneity of quantitative data of the reviewed studies, we qualitatively reviewed the air pollution role in ovarian cancer risk with representing incidence and/or the mortality rate of ovarian cancer in related with air pollution. Nine studies were ecological study design. Except for one, all studies confirmed a positive correlation between exposure to ambient air pollution (AAP) and increased ovarian cancer risks. SUMMARY We concluded that prolonged air pollution exposure through possible mechanisms, estrogen-like effects, and genetic mutations might affect ovarian tumorigenesis. This research surveyed the limitations of the previous studies, including issues with ambient air pollution surveillance and assessing the exposure, determining the air pollution sources, data analysis approaches, and study designs. OUTLOOK Finally, the authors provide suggestions for future environmental epidemiological inquiries on the impact of exposure to ambient air pollution on ovarian malignancy.
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Affiliation(s)
- Samaneh Dehghani
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Moshfeghinia
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
- MPH Department, Medical School, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mahsan Ramezani
- Assistant Professor of Emergency Medicine, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Mohebat Vali
- Department of Epidemiology, School of Health, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahide Oskoei
- Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Ehsan Amiri-Ardekani
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
- Student Association of Indigenous Knowledge, Shiraz University of Medical Sciences, Shiraz, Iran
- Department of Phytopharmaceutical (Traditional Pharmacy), School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Philip Hopke
- Department of Public Health Sciences, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA
- Institute for a Sustainable Environment, Clarkson University, Potsdam, NY, USA
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Liang H, Wu X, Yao H, Weng X, Liu S, Chen J, Li Y, Wu Y, Wen L, Chen Q, Jing C. Association of urinary metabolites of non-persistent pesticides with serum sex hormones among the US females: NHANES 2013-2014. CHEMOSPHERE 2022; 300:134577. [PMID: 35421444 DOI: 10.1016/j.chemosphere.2022.134577] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 03/25/2022] [Accepted: 04/07/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Evidence indicated the possibility of non-persistent pesticides disrupting the homeostasis of sex hormones. However, few studies have focused on this relationship in females. We aimed to explore the relationship between non-persistent pesticide exposure and sex hormones among the US females from the National Health and Nutrition Examination Survey 2013-2014. METHODS A total of 790 females, including girls (6-11 years), female adolescents (12-19 years), and adult females (>19 years), were enrolled in this study. Age stratified associations of individual non-persistent pesticide metabolites and their mixtures with sex hormones were analyzed by weighted multiple linear regression and Bayesian kernel machine regression (BKMR) using spot urinary non-persistent pesticide measurement, including 2,4-dichlorophenoxyacetic acid (2,4-D), 3,5,6-trichloropyridinol (TCPY), para-nitrophenol (PNP) and 3-phenoxybenzoic acid (3-PBA), and three serum sex hormones [total testosterone (TT), estradiol (E2) and sex hormone binding globulin (SHBG)]. RESULTS In girls, weighted multivariate linear regression indicated that both 2,4-D and PNP were negatively associated with TT, and TCPY was inversely associated with SHBG. In female adolescents, TCPY was negatively associated with TT and E2, and 3-PBA was negatively associated with SHBG; positive associations were detected both in 2,4-D with SHBG, and in PNP with TT. In adult females, a higher concentration of 3-PBA was associated with higher levels of TT. The BKMR model showed that in female adolescents, the concentrations of pesticide metabolite mixtures at or above the 55th percentile were negatively related to the levels of E2 compared with their mixtures at 50th percentile, and an inverse U-shaped exposure-response function between PNP and E2 was found. CONCLUSIONS Associations between the four non-persistent pesticide metabolites and serum sex hormones were identified in the US females from NHANES 2013-2014 and these associations were age dependent, especially in adolescents. Large-scale cohort studies are needed to confirm these findings and elucidate the potential biological mechanisms.
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Affiliation(s)
- Huanzhu Liang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Xiaomei Wu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Huojie Yao
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Xueqiong Weng
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Shan Liu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Jingmin Chen
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Yexin Li
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Yingying Wu
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Lin Wen
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Qian Chen
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China
| | - Chunxia Jing
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, No.601 Huangpu Ave West, Guangzhou, 510632, Guangdong, China; Guangdong Key Laboratory of Environmental Exposure and Health, Jinan University, Guangzhou, 510632, Guangdong, China.
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Gene expression profiles of two testicular somatic cell lines respond differently to 4-nitrophenol mediating vary reproductive toxicity. Toxicology 2021; 463:152991. [PMID: 34673133 DOI: 10.1016/j.tox.2021.152991] [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: 04/30/2021] [Revised: 10/04/2021] [Accepted: 10/13/2021] [Indexed: 11/20/2022]
Abstract
4-Nitrophenol (PNP) has been extensively used in manufacturing for several decades. Its toxic effects on the male reproductive system have been reported, but the underlying mechanisms remain unclear. In this study, we utilized two testicular somatic cell lines (TM3 and TM4 cells) to explore the possible toxic effects of PNP on the male reproductive system. The activity of the cells after exposure to different doses of PNP (0.01, 0.1, 1, 10 and 100 μM) was evaluated. PNP treatment at 10 μM significantly inhibited cell viability, and 10 μM PNP was thus selected for subsequent experiments. Although PNP (10 μM) inhibited cell proliferation, promoted cell apoptosis, and changed the cell cycle distribution and ultrastructure in both types of cells, these effects were more significant in the TM4 cells. In addition, an Agilent mouse mRNA array was used to identify the gene expression differences between the control and PNP (10 μM) exposed TM3 and TM4 cells. The microarray analysis identified 67 and 1372 differentially expressed genes mainly concentrated in endothelial cell morphogenesis and anatomical structure development in TM3 cells and associated with cardiovascular system development and circulatory system development in TM4 cells. Moreover, a pathway analysis revealed that PNP not only predominately affected meiotic recombination and meiosis in TM3 cells, but also influenced axon guidance and developmental biology in TM4 cells. These results suggest that TM3 and TM4 cells exhibit different responses to PNP, which might mediate different toxic mechanisms.
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Ahmed EA, Khaled HE, Elsayed AK. Long-term exposure to p-Nitrophenol induces hepatotoxicity via accelerating apoptosis and glycogen accumulation in male Japanese quails. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:44420-44431. [PMID: 33846926 DOI: 10.1007/s11356-021-13806-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
p-Nitrophenol (PNP) is the main end product of organophosphorus insecticides and a derivative of diesel exhaust particles. In addition to its unfavorable impact on reproductive functions in both genders, it also has various harmful physiological effects including lung cancer and allergic rhinitis. The identification of the cellular readout that functions in metabolic pathway perpetuation is still far from clear. This research aimed to study the impact of chronic PNP exposure on the health condition of the liver in Japanese quails. Quails were exposed to different concentrations of PNP as follows: 0.0 (control), 0.01mg (PNP/0.01), 0.1mg (PNP/0.1), and 1mg (PNP/1) per kg of body weight for 2.5 months through oral administration. Liver and plasma samples were collected at 1.5, 2, and 2.5 months post-treatment for biochemical, histopathology, and immunohistochemistry assessment. The plasma aspartate aminotransferase (AST) level was assessed enzymatically. The livers were collected for histopathology, glycogen accumulation, proliferating cell nuclear antigen (PCNA), and apoptosis assessment. Our results revealed an irregularity in body weight due to the long-term exposure of PNP with a significant reduction in liver weight. PNP treatment caused histopathological alterations in the hepatic tissues which increased in severity by the long-term exposure. The low dose led to mild degeneration with lymphocytic infiltration, while the moderate dose has a congestion effect with some necrosis; meanwhile severe hepatocyte degeneration and RBCs hemolysis were noticed due to high dose of PNP. Glycogen accumulation increased in hepatocytes by prolonged exposure to p-Nitrophenol with the highest intensity in the group treated by the high dose. Moderate and high doses of PNP resulted in a significant increase in apoptosis and hepatocytes' proliferation at the different time points after treatment. This increase is markedly notable and maximized at 2.5 months post-treatment. The damage occurred in a time-dependent manner. These changes reflected on the plasma hepatic enzyme AST that was clearly increased at 2.5 months of exposure. Therefore, it could be concluded that PNP has profound toxic effects on the liver in cellular level. Taking into consideration the time and dose factors, both have a synergistic effect on the accumulation of glycogen, apoptosis, and cellular proliferation, highlighting the power of cellular investigation which will potentially open the door for earlier medical intervention to counteract this toxicity. Collectively, PNP could have critical hurtful effects on the health of human beings, wild animals as well as livestock.
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Affiliation(s)
- Eman A Ahmed
- Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt.
- Proteomics and Metabolomics Unit, Department of Basic Research, Children's Cancer Hospital Egypt 57357, Cairo, 11441, Egypt.
| | - Howayda E Khaled
- Zoology Department, Faculty of Sciences, Suez University, Suez, Egypt
| | - Ahmed K Elsayed
- Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt
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Tannic Acid: A green and efficient stabilizer of Au, Ag, Cu and Pd nanoparticles for the 4-Nitrophenol Reduction, Suzuki-Miyaura coupling reactions and click reactions in aqueous solution. J Colloid Interface Sci 2021; 604:281-291. [PMID: 34271489 DOI: 10.1016/j.jcis.2021.07.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 06/06/2021] [Accepted: 07/03/2021] [Indexed: 11/19/2022]
Abstract
Due to the good electrical, optical, magnetic, catalytic properties, transition metal nanoparticles (TMNPs) have been becoming more and more interesting in the fileds of environment, material, biomedicine, catalysis, and so on. Here, tannic acid (TA) is used as a green and efficient stabilizer to fabricate all kinds of TMNPs including AuNPs, AgNPs, CuNPs and PdNPs. These TMNPs possess small sizes ranging from 1 nm to 6 nm, which is conducive to several catalytic reactions in aqueous solution, such as 4-nitrophenol (4-NP) reduction, CuAAC reactions and Suzuki-Miyaura coupling reactions. AuNPs and PdNPs are found to have distinctly higher catalytic activities than AgNPs and CuNPs in the 4-NP reduction process. Especially, PdNPs show the highest catalytic activities with TOF up to 7200 h-1 in the 4-NP reduction. Furthermore, PdNPs also exhibit satisfying catalytic performance in the Suzuki-Miyaura coupling process, and CuNPs are catalytically active in the copper-catalyzed azide alkyne cycloaddition (CuAAC) reactions. The applicability and generality of PdNPs and CuNPs are respectively confirmed via the reaction between different substrates in the Suzuki-Miyaura coupling reactions and the CuAAC reactions. This work present a simple, fast, green and efficient strategy to synthesize TMNPs for multiple catalysis.
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Ren S, Li Y, Li C. Effects of P-nitrophenol exposure on the testicular development and semen quality of roosters. Gen Comp Endocrinol 2021; 301:113656. [PMID: 33159910 DOI: 10.1016/j.ygcen.2020.113656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 10/25/2020] [Accepted: 10/29/2020] [Indexed: 01/26/2023]
Abstract
The widespread use of P-nitrophenol (PNP) as a raw material in pesticides, medicines and dyes has led to environmental pollution. PNP is a well-known endocrine disruptor in mammals and quails. This study investigated the effects of long-term PNP exposure on the testicular development and semen quality of roosters. Pubescent and postpubescent animals were given drinking water supplemented with (0 mg/L, 1 mg/L, 10 mg/L, or 100 mg/L) PNP for eight weeks or sixteen weeks. The relative testis weight, antioxidant index, serum hormone concentration, morphological changes, semen quality and expression of major steroidogenic genes were measured. The results showed that eight weeks of PNP exposure decreased CAT activity and increased H2O2 level in serum and testes in the 10 mg/L and 100 mg/L PNP-treated groups. Detached sperm cells were also found in the testicular tissues of the 100 mg/L PNP-treated group. After sixteen weeks of PNP exposure, daily weight gain, sperm motility, serum testosterone concentration and 3β1-hydroxysteroid dehydrogenase (HSD3β1) mRNA expression were decreased in the 100 mg/L PNP-treated group. Some vacuoles in the seminiferous epithelium in the testicular tissues were found in the 10 mg/L and 100 mg/L PNP-treated groups. In conclusion, as an endocrine disruptor, PNP exposure impaired antioxidant capacity, reduced testosterone synthesis, caused morphological changes in testes, and ultimately decreased semen quality in the roosters. The reproductive damage of PNP to roosters depended on the length of exposure time and the administered dose.
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Affiliation(s)
- Shanmao Ren
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China; Jiangsu Agri-animal Husbandry Vocational College, Taizhou 225300, China
| | - Yansen Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Chunmei Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Kozubek A, Katarzyńska-Banasik D, Grzegorzewska AK, Kowalik K, Hrabia A, Sechman A. Nitrophenols are negative modulators of steroidogenesis in preovulatory follicles of the hen (Gallus domesticus) ovary: An in vitro and in vivo study. Theriogenology 2020; 157:162-175. [PMID: 32810793 DOI: 10.1016/j.theriogenology.2020.07.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 07/24/2020] [Accepted: 07/26/2020] [Indexed: 11/28/2022]
Abstract
This study assessed the effects of 4-nitrophenol (PNP) and 3-methyl-4-nitrophenol (PNMC) on steroidogenesis in the granulosa layers (GLs) and theca layers (TLs) of chicken preovulatory follicles in vitro and in vivo. In the in vitro experiment, three of the largest yellow preovulatory follicles (F3 < F2 < F1) were exposed to PNP or PNMC (10-8-10-4 M), ovine luteinising hormone (oLH; 10 ng/mL), and combinations of oLH and PNP or PNMC (10-6 M). In the in vivo experiment, laying hens were treated for 6 days with PNP or PNMC (10 mg/kg). In vitro experiments revealed that PNP and PNMC decreased basal and oLH-stimulated P4 secretion from the GL as well as T and E2 secretion from the TLs of F3-F1 follicles. Treatment of laying hens with nitrophenols lowered plasma concentrations of luteinising hormone and all three steroids. The reduction of steroid secretion was associated with decrease in LHR, HSD3B1 and CYP19A1 mRNA expression in the GL and/or TLs of the preovulatory follicles, both in vitro and in vivo. Moreover, PNP decreased HSD3B protein expression in the GL of F2 follicles in vitro and in vivo, while PNMC diminished its expression in the GL of F1 follicles in vivo. In vitro, nitrophenols did not affect CYP19A1 protein expression; however, nitrophenols inhibited its expression in the TLs of F3 and F2 follicles in vivo. The results obtained clearly demonstrate that nitrophenols are negative modulators of steroidogenesis in chicken preovulatory follicles and, in consequence, may not only impair ovulation process, but also affect function of the hypothalamic-pituitary-ovarian axis.
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Affiliation(s)
- Anna Kozubek
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059, Krakow, Poland.
| | - Dorota Katarzyńska-Banasik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059, Krakow, Poland
| | - Agnieszka K Grzegorzewska
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059, Krakow, Poland
| | - Kinga Kowalik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059, Krakow, Poland
| | - Anna Hrabia
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059, Krakow, Poland
| | - Andrzej Sechman
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059, Krakow, Poland
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Dong F, Chen L, Wang R, Yang W, Lu T, Zhang Y. 4-nitrophenol exposure in T24 human bladder cancer cells promotes proliferation, motilities, and epithelial-to-mesenchymal transition. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2020; 61:316-328. [PMID: 31654581 DOI: 10.1002/em.22345] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 10/15/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
Although health hazards of 4-nitrophenol (PNP) exposure have been reported, the adverse effects of PNP exposure on cancer biological features are still unknown. We investigated the effects of administration of PNP in T24 human bladder cancer cells. The results showed that PNP exposure promoted cellular proliferation, migration and invasion, inhibited adhesion and apoptosis in vitro. Using quantitative real-time PCR, we found that (1) the mRNA expression levels of cell-cycle regulators PCNA, cyclin D1 and COX-2 were increased in PNP-treated cells compared to controls, however, that of pro-apoptotic gene Bax was decreased; (2) the expression level of EMT-associated gene E-cadherin was decreased in PNP-treated cells, whereas those of N-cadherin, vimentin, snail, and slug were increased; (3) the expression levels of cancer-promoting genes HIF-1, IL-1β, VEGFα and K-Ras were enhanced, but those of tumor suppressors p53, PTEN and BRCA were decreased. There was a positive association between PNP exposure times and the promotion effects. Finally, we found that the expression level of PPARγ (γ1 isoform) was increased in PNP-treated T24 cells. GW9662, a specific PPARγ antagonist, attenuated PNP-induced cell migration and invasion. These findings indicate that PNP exposure may promote bladder cancer growth and progression involving PPARγ signaling. PPARγ is a potential target for development of novel intervention study on environment pollution. Environ. Mol. Mutagen. 61:316-328, 2020. © 2019 Wiley Periodicals, Inc.
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Affiliation(s)
- Fulu Dong
- Laboratory of Nuclear Receptors & Cancer Research, Basic Medical Research Center, Nantong Key Laboratory of Microenvironment and Cancer Translational Medicine, Nantong University School of Medicine, Nantong, 226001, Jiangsu, People's Republic of China
| | - Lu Chen
- Laboratory of Nuclear Receptors & Cancer Research, Basic Medical Research Center, Nantong Key Laboratory of Microenvironment and Cancer Translational Medicine, Nantong University School of Medicine, Nantong, 226001, Jiangsu, People's Republic of China
| | - Rui Wang
- Laboratory of Nuclear Receptors & Cancer Research, Basic Medical Research Center, Nantong Key Laboratory of Microenvironment and Cancer Translational Medicine, Nantong University School of Medicine, Nantong, 226001, Jiangsu, People's Republic of China
| | - Weiping Yang
- Laboratory of Nuclear Receptors & Cancer Research, Basic Medical Research Center, Nantong Key Laboratory of Microenvironment and Cancer Translational Medicine, Nantong University School of Medicine, Nantong, 226001, Jiangsu, People's Republic of China
| | - Tingting Lu
- Laboratory of Nuclear Receptors & Cancer Research, Basic Medical Research Center, Nantong Key Laboratory of Microenvironment and Cancer Translational Medicine, Nantong University School of Medicine, Nantong, 226001, Jiangsu, People's Republic of China
| | - Yonghui Zhang
- Laboratory of Nuclear Receptors & Cancer Research, Basic Medical Research Center, Nantong Key Laboratory of Microenvironment and Cancer Translational Medicine, Nantong University School of Medicine, Nantong, 226001, Jiangsu, People's Republic of China
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Sechman A, Grzegorzewska AK, Grzesiak M, Kozubek A, Katarzyńska-Banasik D, Kowalik K, Hrabia A. Nitrophenols suppress steroidogenesis in prehierarchical chicken ovarian follicles by targeting STAR, HSD3B1, and CYP19A1 and downregulating LH and estrogen receptor expression. Domest Anim Endocrinol 2020; 70:106378. [PMID: 31514021 DOI: 10.1016/j.domaniend.2019.07.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 12/18/2022]
Abstract
To assess the effects of 4-nitrophenol (PNP) and 3-methyl-4-nitrophenol (PNMC) on steroidogenesis in the chicken ovary, white (WF, 1-4 mm) and yellowish (YF, 4-8 mm) prehierarchical follicles were incubated in a medium supplemented with PNP or PNMC (10-8-10-4 M), ovine LH (oLH; 10 ng/mL), and combinations of oLH with PNP or PNMC (10-6 M). Testosterone (T) and estradiol (E2) concentrations in media and mRNA expression for steroidogenic proteins (STAR, HSD3B1, and CYP19A1), and LH receptors (LHR), estrogen receptor α (ESR1) and β (ESR2) in follicles were determined by RIA and real-time qPCR, respectively. PNP and PNMC decreased T and E2 secretion by the WF and YF, and oLH-stimulated T secretion from these follicles. PNP decreased basal STAR and HSD3B1 mRNA levels both in the WF and YF, and CYP19A1 mRNAs in the WF. PNP reduced oLH-affected mRNA expression of these genes in the YF. PNMC inhibited basal STAR, HSD3B1, and CYP19A1 mRNA expression in the WF, but not in the YF. PNMC reduced oLH-stimulated STAR and CYP19A1 expression in the YF and WF, respectively. PNP decreased basal mRNA expression of LHR, ESR1, and ESR2 in the WF, but it increased ESR1 and ESR2 mRNA levels in the YF. PNMC reduced both basal and oLH-affected LHR, ESR1, and ESR2 mRNA expression in the WF; however, it did not influence expression of these genes in the YF. We suggest that nitrophenols by influencing sex steroid synthesis and transcription of LH and estrogen receptors in prehierarchical ovarian follicles may impair their development and selection to the preovulatory hierarchy.
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Affiliation(s)
- A Sechman
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland.
| | - A K Grzegorzewska
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - M Grzesiak
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - A Kozubek
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - D Katarzyńska-Banasik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - K Kowalik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - A Hrabia
- Department of Animal Physiology and Endocrinology, University of Agriculture in Krakow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
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Grzegorzewska AK, Hrabia A, Kowalik K, Katarzyńska-Banasik D, Kozubek A, Sechman A. In vitro effects of PNP and PNMC on apoptosis and proliferation in the hen ovarian stroma and prehierarchal follicles. Acta Histochem 2020; 122:151463. [PMID: 31708232 DOI: 10.1016/j.acthis.2019.151463] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 10/25/2019] [Accepted: 10/25/2019] [Indexed: 12/11/2022]
Abstract
This study aimed to examine the mRNA expression, activity, and immunolocalisation of apoptosis/proliferation regulating factors following in vitro exposure of the stroma, white (WFs), and yellowish (YFs) follicles of the chicken ovary to 4-nitrophenol (PNP) or 3-methyl-4-nitrophenol (PNMC). PNMC increased the mRNA expression of caspase-3, -8, Apaf-1, and cytochrome c in the ovarian stroma. The activity of caspase-3, -8, and -9 decreased in WFs in both nitrophenol-treated groups. PNP reduced the number of caspase-3-positive cells in the stromal connective tissue (CT) and the theca interna and externa layers of WFs. In the stroma, the proliferating index decreased in the wall of primary follicles in both nitrophenol-treated groups, however, in the CT, the effect of PNMC was opposite. In the theca interna of WFs, PNP diminished the proliferating index. These results suggest that nitrophenols might impact the development of chicken ovarian follicles by affecting cell death and proliferation.
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Affiliation(s)
- A K Grzegorzewska
- Department of Animal Physiology and Endocrinology, University of Agriculture in Cracow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland.
| | - A Hrabia
- Department of Animal Physiology and Endocrinology, University of Agriculture in Cracow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - K Kowalik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Cracow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - D Katarzyńska-Banasik
- Department of Animal Physiology and Endocrinology, University of Agriculture in Cracow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - A Kozubek
- Department of Animal Physiology and Endocrinology, University of Agriculture in Cracow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
| | - A Sechman
- Department of Animal Physiology and Endocrinology, University of Agriculture in Cracow, Al. Mickiewicza 24/28, 30-059 Krakow, Poland
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Ma Y, Hu K, Sun Y, Iqbal K, Bai Z, Wang C, Jia X, Ye W. N-doped carbon coated Mn 3O 4/PdCu nanocomposite as a high-performance catalyst for 4-nitrophenol reduction. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 696:134013. [PMID: 31465923 DOI: 10.1016/j.scitotenv.2019.134013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 08/19/2019] [Accepted: 08/19/2019] [Indexed: 06/10/2023]
Abstract
This paper reports the chemical synthesis of highly-active Mn3O4/PdCu nanocomposites coated with N-doped carbon (NC) shell using polydopamine (PDA) as the carbon source, which provides high specific surface area and pore volume. The structure and morphology of Mn3O4/PdCu@NC nanocomposites were systematically studied. Taking advantage of the synergistic effects of PdCu alloy and Mn3O4 support, the Mn3O4/PdCu@NC catalyst exhibited an outstanding activity toward the reduction of 4-nitrophenol (4-NP), in comparison to Mn3O4/PdM@NC (M = Ni, Au, Ag), Mn3O4/PdCu@PDA, and commercial Pd/C catalyst. Owing to the protection by NC shell, the as-prepared catalyst showed stable conversion efficiency of up to 90% over ten successive cycles. Considering 4-NP as one of the important organic pollutants from industrial production, the effects of various inorganic and organic species on the catalytic efficiency were further tested and most of them had negligible impact. This strategy of utilizing an N-doped carbon shell could be extended to obtain PdCu alloys supported on other metal oxides, making it applicable for applications in treatment of environmental pollutants.
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Affiliation(s)
- Yao Ma
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Kaiqi Hu
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Yifan Sun
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Kanwal Iqbal
- Department of chemistry, Sardar Bahadur Khan Women(')s University, Quettta 87300, Pakistan
| | - Zhiyong Bai
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Changding Wang
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xueqing Jia
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Weichun Ye
- State Key Laboratory of Applied Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, China.
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Elkin T, Saouma C. Effect of linker and metal on photoreduction and cascade reactions of nitroaromatics by M-UiO-66 metal organic frameworks. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.119076] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Gao M, Yang Y, Guo J. Revealing the Role of Chain Length of Ligands on Gold Nanoparticles Surface in the Process for Catalysis Reduction of 4-Nitrophenol. Catal Letters 2019. [DOI: 10.1007/s10562-019-02752-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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16
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Ismail M, Khan M, Khan SB, Akhtar K, Khan MA, Asiri AM. Catalytic reduction of picric acid, nitrophenols and organic azo dyes via green synthesized plant supported Ag nanoparticles. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.07.030] [Citation(s) in RCA: 89] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Gürbüz MU, Ertürk AS. Synthesis and Characterization of Jeffamine Core PAMAM Dendrimer-Silver Nanocomposites (Ag JCPDNCs) and Their Evaluation in The Reduction of 4-Nitrophenol. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2018. [DOI: 10.18596/jotcsa.428572] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Zhang H, Taya K, Nagaoka K, Yoshida M, Watanabe G. 4-Nitrophenol (PNP) inhibits the expression of estrogen receptor β and disrupts steroidogenesis during the ovarian development in female rats. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 229:1-9. [PMID: 28570923 DOI: 10.1016/j.envpol.2017.04.088] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Revised: 04/22/2017] [Accepted: 04/29/2017] [Indexed: 06/07/2023]
Abstract
4-nitrophenol (PNP), isolated from diesel exhaust particles, has estrogenic and anti-androgenic activities, and affects the hypothalamus-pituitary-gonad axis in male rats. However, the effect of PNP on the reproduction of the female rats is still unknown. The aim of the study was to investigate the effect of neonatal PNP exposure on the ovarian function of female rats. The neonatal female rats were exposed to PNP (10 mg/kg, subcutaneously injection), the ovary and serum samples were collected at postnatal day (PND) 7, 14 and 21. The results showed that the ratio of primordial and primary follicles increased whereas the ratio of antral follicles decreased in the PNP treated ovaries at PND21. Even though no abnormality was observed in cyclicity, there was a significantly delayed timing of vaginal opening in PNP treated rats. The ovarian expression of steroidogenic enzymes including StAR, P450scc, P450c17 and P450arom increased at PND14 in the PNP treated rats compared with the control rats. In consistent with the gene expression, the concentration of estradiol-17β showed the similar pattern. However, PNP exposure failed to cause any significant change in the expression of steroidogenic enzymes in cultured neonatal ovaries. Furthermore, PNP suppressed the expression of estrogen receptor β (ERβ), but not estrogen receptor α (ERα), in cultured ovaries or developmental ovaries. These results suggested that PNP might directly affect the expression of ERβ in the rat ovaries, resulting in the disrupted steroidogenesis during ovarian development and the delayed puberty.
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Affiliation(s)
- Haolin Zhang
- Laboratory of Animal Physiology, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, PR China; United Graduate School of Veterinarian Science, Gifu University, Gifu 501-1193, Japan; Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Kazuyoshi Taya
- United Graduate School of Veterinarian Science, Gifu University, Gifu 501-1193, Japan
| | - Kentaro Nagaoka
- United Graduate School of Veterinarian Science, Gifu University, Gifu 501-1193, Japan; Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan
| | - Midori Yoshida
- Division of Pathology, National Institute of Health Sciences, Tokyo 158-8501, Japan
| | - Gen Watanabe
- United Graduate School of Veterinarian Science, Gifu University, Gifu 501-1193, Japan; Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo 183-8509, Japan.
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Yang P, Sun H, Gong YJ, Wang YX, Liu C, Chen YJ, Sun L, Huang LL, Ai SH, Lu WQ, Zeng Q. Repeated measures of urinary polycyclic aromatic hydrocarbon metabolites in relation to altered reproductive hormones: A cross-sectional study in China. Int J Hyg Environ Health 2017; 220:1340-1346. [PMID: 28935356 DOI: 10.1016/j.ijheh.2017.09.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 09/08/2017] [Accepted: 09/09/2017] [Indexed: 01/06/2023]
Abstract
BACKGROUND Polycyclic aromatic hydrocarbons (PAHs) are a group of ubiquitous environmental pollutants. In vivo and in vitro studies have demonstrated that PAHs can alter endocrine function, yet evidence from human studies is limited. OBJECTIVES The objective of this study was to investigate whether environmental exposure to PAHs was associated with altered reproductive hormone levels, using repeated measures of urinary OH-PAHs as biomarkers. METHODS We measured 10 monohydroxylated PAHs (OH-PAHs) in repeated urine samples from 371 men in an infertility clinic in Wuhan, China. Multivariable linear regression models were used to estimate the associations between average urinary OH-PAH levels and serum reproductive hormones, and restricted cubic spline models were further used to examine the shapes of dose-response relationships. RESULTS We observed dose-response associations of urinary 2-hydroxynaphthalene (2-OHNa) with decreased serum free testosterone (fT) and urinary 1-hydroxypyrene (1-OHP), 9-hydroxyphenanthrene (9-OHPh), and 9-hydroxyfluorene (9-OHFlu) with decreased serum estradiol (all P for trends <0.05). These associations were linear and significant when these four OH-PAHs were modeled as continuous variables in restricted cubic spline models. Furthermore, a U-shaped association was observed across urinary 4-OHPh levels, with lower levels of serum sex hormone-binding globulin (SHBG) at median concentrations compared with 5th and 95th percentile concentrations. CONCLUSION Environmental levels of PAH exposure in our study are associated with altered reproductive hormones. However, further research is needed to confirm our findings.
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Affiliation(s)
- Pan Yang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Huan Sun
- Xiangtan County Center for Disease Control and Prevention, Xiangtan, Hunan, PR China
| | - Ya-Jie Gong
- Department of Epidemiology and Biostatistics, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Yi-Xin Wang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Chong Liu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Ying-Jun Chen
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Li Sun
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Li-Li Huang
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Song-Hua Ai
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Wen-Qing Lu
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - Qiang Zeng
- Department of Occupational and Environmental Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China; Key Laboratory of Environment and Health, Ministry of Education & Ministry of Environmental Protection, and State Key Laboratory of Environmental Health (incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China.
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Inhibition of autophagy aggravated 4-nitrophenol-induced oxidative stress and apoptosis in NHPrE1 human normal prostate epithelial progenitor cells. Regul Toxicol Pharmacol 2017; 87:88-94. [DOI: 10.1016/j.yrtph.2017.05.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Revised: 02/24/2017] [Accepted: 05/01/2017] [Indexed: 12/20/2022]
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Kumar V, Singh K, Panwar S, Mehta SK. Green synthesis of manganese oxide nanoparticles for the electrochemical sensing of p-nitrophenol. INTERNATIONAL NANO LETTERS 2017. [DOI: 10.1007/s40089-017-0205-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Yadav DK, Ganesan V, Marken F, Gupta R, Sonkar PK. Metal@MOF Materials in Electroanalysis: Silver-Enhanced Oxidation Reactivity Towards Nitrophenols Adsorbed into a Zinc Metal Organic Framework—Ag@MOF-5(Zn). Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Tang J, Song M, Watanabe G, Nagaoka K, Rui X, Li C. Effects of 4-nitrophenol on expression of the ER-α and AhR signaling pathway-associated genes in the small intestine of rats. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 216:27-37. [PMID: 27235926 DOI: 10.1016/j.envpol.2016.05.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Revised: 05/13/2016] [Accepted: 05/16/2016] [Indexed: 06/05/2023]
Abstract
4-Nitrophenol (PNP) is a persistent organic pollutant that was proven to be an environmental endocrine disruptor. The aim of this study was to evaluate the role of the estrogen receptor-α (ER-α) and aryl hydrocarbon receptor (AhR) signaling pathway in regulating the damage response to PNP in the small intestine of rats. Wistar-Imamichi male rats (21 d) were randomly divided into two groups: the control group and PNP group. Each group had three processes that were gavaged with PNP or vehicle daily: single dose (1 d), repeated dose (3 consecutive days) (3 d), and repeated dose with recovery (3 consecutive days and 3 recovery days) (6 d). The weight of the body, the related viscera, and small intestine were examined. Histological parameters of the small intestine and the quantity of mucus proteins secreted by small goblet cells were determined using HE staining and PAS staining. The mRNA expression of AhR, ER-α, CYP1A1, and GST was measured by real-time qPCR. In addition, we also analyzed the AhR, ER-α, and CYP1A1 expression in the small intestine by immunohistochemical staining. The small intestines histologically changed in the PNP-treated rat and the expression of AhR, CYP1A1, and GST was increased. While ER-α was significantly decreased in the small intestine, simultaneously, when rats were exposed to a longer PNP treatment, the damages disappeared. Our results demonstrate that PNP has an effect on the expression of AhR signaling pathway genes, AhR, CYP1A1, and GST, and ER-α in the rat small intestine.
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Affiliation(s)
- Juan Tang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Meiyan Song
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Gen Watanabe
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Kentaro Nagaoka
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - Xiaoli Rui
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - ChunMei Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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Chen R, Liu C, Yuan L, Zha J, Wang Z. 2, 4-Dichloro-6-nitrophenol, a photonitration product of 2, 4-dichlorophenol, caused anti-androgenic potency in Chinese rare minnows (Gobiocypris rarus). ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 216:591-598. [PMID: 27325545 DOI: 10.1016/j.envpol.2016.06.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 06/03/2016] [Accepted: 06/07/2016] [Indexed: 06/06/2023]
Abstract
2,4-Dichloro-6-nitrophenol (DCNP) is an environmental transformation product of 2,4-dichlorophenol that has been identified as widespread in effluent wastewater, but little is known about its toxicity because this compound is not regulated. Therefore, to investigate the endocrine disruption potency of DCNP in Chinese rare minnows (Gobiocypris rarus), adult and juvenile fish were exposed to various concentrations of DCNP (2, 20, and 200 μg/L) for 28 d. After 28 d exposure, the plasma vitellogenin (VTG) levels were reduced in females while increased in males and juvenile fish considerably, as compared with the control. These results suggested that DCNP affects the HPG-axis in a sex-dependent way. Testosterone (T) levels in the plasma were significantly lower in adult and juvenile fish and were accompanied by an increased estradiol (E2)/T ratio. Histopathological observation revealed hypertrophy of the hepatocytes and nuclear pyknosis in the liver, the inhibition of spermatogenesis in the testes, and the degeneration of oocytes in the ovaries after DCNP exposure. The expression pattern of selected genes indicated that the nuclear receptor, steroidogenesis and gonadotropin regulation pathways were perturbed after DCNP exposure. Above all, our results demonstrated that DCNP clearly had anti-androgenic activity in both adult and juvenile fish and can therefore be considered as an endocrine-disrupting chemical.
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Affiliation(s)
- Rui Chen
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Cao Liu
- Beijing Water Sciences and Technology Institute, Beijing, 100048, China
| | - Lilai Yuan
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Jinmiao Zha
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
| | - Zijian Wang
- Beijing Key Laboratory of Industrial Wastewater Treatment and Reuse, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
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Xing L, Leng K, Sun W, Sun X, Guo J. Determination of nitrophenolate sodium in aquatic products by HPLC–MS/MS with atmospheric pressure chemical ionization. JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1134/s1061934816080104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zhang Y, Cao Y, Wang F, Song M, Rui X, Li Y, Li C. 4-Nitrophenol induces activation of Nrf2 antioxidant pathway and apoptosis of the germ cells in rat testes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2016; 23:13035-13046. [PMID: 26996915 DOI: 10.1007/s11356-016-6470-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2015] [Accepted: 03/14/2016] [Indexed: 06/05/2023]
Abstract
The potential of 4-nitrophenol (PNP) to affect testicular function of rats was assessed by intratesticular injection (IT). The protective effects of phytosterin (PS) on PNP-induced injury were assessed. Rats were sacrificed on days 1, 3, and 7 after IT of PNP (0.1 M, 50 μl). PNP induced hemorrhage in intertubular areas and denudation of germinal epithelium. The expression of caspase-3 and sperm abnormalities were significantly increased (P < 0.05). The concentrations of testosterone in serum were significantly increased (P < 0.05) on the 1st and 3rd day. PNP induced oxidative stress in testes, which manifested increased SOD, CAT, GSH-Px activities, and increases in MDA, GSH, H2O2 concentrations (P < 0.05). The Nrf2 antioxidant pathway was activated as indicated by increased expression of Nrf2, HO-1, and GCLC mRNA (P < 0.05). Moreover, supplementation with PS resulted in an amelioration of PNP-induced oxidative damage. These results suggest that PNP induced activation of Nrf2 antioxidant pathway and apoptosis of the germ cells.
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Affiliation(s)
- Yonghui Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, People's Republic of China
- Laboratory of Nuclear Receptors and Cancer Research, Basic Medical Research Center, Nantong University School of Medicine, Nantong, 226001, Jiangsu, People's Republic of China
| | - Yun Cao
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, People's Republic of China
| | - Fei Wang
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, People's Republic of China
| | - Meiyan Song
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, People's Republic of China
| | - Xiaoli Rui
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, People's Republic of China
| | - Yansen Li
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, People's Republic of China
| | - ChunMei Li
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing, 210095, People's Republic of China.
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Tomei G, Rosati MV, Ciarrocca M, Capozzella A, Pimpinella B, Palitti T, Casale T, Di Famiani M, Filippelli C, Cangemi C, Giubilati R, Monti C, Tomei F. Urban stressors and plasmatic 17-β-estradiol (E2) in male exposed workers. Toxicol Ind Health 2016; 23:537-43. [DOI: 10.1177/0748233708089043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The aim of the study is to evaluate if the occupational exposure to urban stressors could cause alterations in 17-β-estradiol (E2) plasma levels and related disorders in male traffic police compared with a control group. After excluding from the study, the subjects with the principal confounding factors, traffic police and controls were matched by age, working life, Body Mass Index (BMI), smoking and drinking habit. A total of 171 male traffic police and 171 controls were included in the study. In traffic police, mean E2 values were significantly lower versus controls ( P < 0.001). The distribution of E2 values in traffic police and controls was significant ( P < 0.001). No significant differences were found in percentage of traffic police versus controls concerning the following questionnaire items: fertility and mental health diseases. Our results suggest that the occupational exposure to chemical urban stressor, interacting with and adding to the psychosocial ones, could alter plasma E2 concentrations in male traffic police compared with a control group. According to our previous researches on other neuro-immune-endocrine parameters, E2 could be used as an early biological marker, valuable for the group, to be used in occupational set even before the onset of the pathologies.
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Affiliation(s)
- G Tomei
- Department of Psychiatric Science and Psychological Medicine, University of Rome “Sapienza”, Rome, Italy
| | - MV Rosati
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - M Ciarrocca
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - A Capozzella
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - B Pimpinella
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - T Palitti
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - T Casale
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - M Di Famiani
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - C Filippelli
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - C Cangemi
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - R Giubilati
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - C Monti
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
| | - F Tomei
- Department of Occupational Medicine, University of Rome “Sapienza”, Rome, Italy
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28
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Li R, Song M, Li Z, Li Y, Watanabe G, Nagaoka K, Taya K, Li C. 4-Nitrophenol exposure alters the AhR signaling pathway and related gene expression in the rat liver. J Appl Toxicol 2016; 37:150-158. [DOI: 10.1002/jat.3332] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Revised: 03/09/2016] [Accepted: 03/11/2016] [Indexed: 11/06/2022]
Affiliation(s)
- Ruonan Li
- Jiangsu Provincial Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
| | - Meiyan Song
- Jiangsu Provincial Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
| | - Zhi Li
- Jiangsu Provincial Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
| | - Yansen Li
- Jiangsu Provincial Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
| | - Gen Watanabe
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture; Tokyo University of Agriculture and Technology; Tokyo Japan
- Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences; Gifu University; Gifu Japan
| | - Kentaro Nagaoka
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture; Tokyo University of Agriculture and Technology; Tokyo Japan
- Department of Basic Veterinary Science, The United Graduate School of Veterinary Sciences; Gifu University; Gifu Japan
| | - Kazuyoshi Taya
- Jiangsu Provincial Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture; Tokyo University of Agriculture and Technology; Tokyo Japan
| | - Chunmei Li
- Jiangsu Provincial Key Laboratory of Gastrointestinal Nutrition and Animal Health, College of Animal Science and Technology; Nanjing Agricultural University; Nanjing China
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Wu D, Tao X, Chen ZP, Han JT, Jia WJ, Zhu N, Li X, Wang Z, He YX. The environmental endocrine disruptor p-nitrophenol interacts with FKBP51, a positive regulator of androgen receptor and inhibits androgen receptor signaling in human cells. JOURNAL OF HAZARDOUS MATERIALS 2016; 307:193-201. [PMID: 26780698 DOI: 10.1016/j.jhazmat.2015.12.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2015] [Revised: 12/16/2015] [Accepted: 12/22/2015] [Indexed: 05/05/2023]
Abstract
The compound p-nitrophenol, which shows the anti-androgenic activity, can easily become anthropogenic pollutants and pose a threat to the environment and human health. Previous work indicates that the anti-androgenic mechanism of p-nitrophenol is complex and may involve several components in the AR signaling pathway, but the molecular details of how p-nitrophenol inhibits AR signaling are still not quite clear. Here, we characterized p-nitrophenol binds to the FK1 domain of an AR positive regulator FKBP51 with micromolar affinity and structural analysis of FK1 domain in complex with p-nitrophenol revealed that p-nitrophenol occupies a hydrophobic FK1 pocket that is vital for AR activity enhancement. Molecular dynamics simulation indicated that p-nitrophenol is stably bound to the FK1 pocket and the hotspot residues that involved p-nitrophenol binding are mainly hydrophobic and overlap with the AR interaction site. Furthermore, we showed that p-nitrophenol inhibits the androgen-dependent growth of human prostate cancer cells, possibly through down-regulating the expression levels of AR activated downstream genes. Taken together, our data suggests that p-nitrophenol suppresses the AR signaling pathway at least in part by blocking the interaction between AR and its positive regulator FKBP51. We believe that our findings could provide new guidelines for assessing the potential health effects of p-nitrophenol.
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Affiliation(s)
- Dan Wu
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China; Institute of Urology, Lanzhou University Second Hospital, Key Laboratory of Urological Diseases in Gansu Province, Gansu Nephro-Urological Clinical Center, Lanzhou, Gansu 730000, PR China
| | - Xuanyu Tao
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Zhi-Peng Chen
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China; Cuiying Honors College, Lanzhou University, Lanzhou 730000, PR China
| | - Jian-Ting Han
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Wen-Juan Jia
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Ning Zhu
- MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Xiangkai Li
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Zhiping Wang
- Institute of Urology, Lanzhou University Second Hospital, Key Laboratory of Urological Diseases in Gansu Province, Gansu Nephro-Urological Clinical Center, Lanzhou, Gansu 730000, PR China.
| | - Yong-Xing He
- School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China; MOE Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China; Gansu Key Laboratory of Biomonitoring and Bioremediation for Environmental Pollution, School of Life Sciences, Lanzhou University, Lanzhou, PR China.
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30
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Chen J, Song M, Li Y, Zhang Y, Taya K, Li C. The effect of phytosterol protects rats against 4-nitrophenol-induced liver damage. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 41:266-271. [PMID: 26748050 DOI: 10.1016/j.etap.2015.12.011] [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: 08/25/2015] [Revised: 12/14/2015] [Accepted: 12/16/2015] [Indexed: 06/05/2023]
Abstract
We investigated the effect of phytosterol (PS) in regard to liver damage induced by 4-nitrophenol (PNP). Twenty rats were randomly divided into four groups (Control, PS, PNP, and PNP+PS). The PS and PNP+PS groups were pretreated with PS for one week. The PNP and PNP+PS groups were injected subcutaneously with PNP for 28 days. The control group received a basal diet and was injected with vehicle alone. Treatment with PS prevented the elevation of the total bilirubin levels, as well as an increase in serum alkaline transaminase and aspartate transaminase, which are typically caused by PNP-induced liver damage. Histopathologically showed that liver damage was significantly mitigated by PS treatment. However, there was no significant change in antioxidant enzyme activities, and the Nrf2-antioxidant system was not activated after treatment with PS. These results suggest that PS could mitigate liver damage induced by PNP, but does not enhance antioxidant capacity.
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Affiliation(s)
- Jiaqin Chen
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Meiyan Song
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Yansen Li
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Yonghui Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China
| | - Kazuyoshi Taya
- Laboratory of Veterinary Physiology, Cooperative Department of Veterinary Medicine, Faculty of Agriculture, Tokyo University of Agriculture and Technology, Tokyo, Japan
| | - ChunMei Li
- College of Animal Science and Technology, Nanjing Agricultural University, 1 Weigang, Nanjing 210095, PR China.
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31
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Kumar A, Devi M, Mamidi N, Gonsalves KE, Pradeep CP. Aromatic Sulfonium Polyoxomolybdates: Solid-State Photochromic Materials with Tunable Properties. Chemistry 2015; 21:18557-62. [DOI: 10.1002/chem.201503574] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Indexed: 11/06/2022]
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Kiyama R, Wada-Kiyama Y. Estrogenic endocrine disruptors: Molecular mechanisms of action. ENVIRONMENT INTERNATIONAL 2015; 83:11-40. [PMID: 26073844 DOI: 10.1016/j.envint.2015.05.012] [Citation(s) in RCA: 172] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 05/26/2015] [Accepted: 05/27/2015] [Indexed: 05/20/2023]
Abstract
A comprehensive summary of more than 450 estrogenic chemicals including estrogenic endocrine disruptors is provided here to understand the complex and profound impact of estrogen action. First, estrogenic chemicals are categorized by structure as well as their applications, usage and effects. Second, estrogenic signaling is examined by the molecular mechanism based on the receptors, signaling pathways, crosstalk/bypassing and autocrine/paracrine/homeostatic networks involved in the signaling. Third, evaluation of estrogen action is discussed by focusing on the technologies and protocols of the assays for assessing estrogenicity. Understanding the molecular mechanisms of estrogen action is important to assess the action of endocrine disruptors and will be used for risk management based on pathway-based toxicity testing.
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Affiliation(s)
- Ryoiti Kiyama
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
| | - Yuko Wada-Kiyama
- Department of Physiology, Nippon Medical School, Bunkyo-ku, Tokyo 113-8602, Japan
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Ahmed E, Nagaoka K, Fayez M, Abdel-Daim MM, Samir H, Watanabe G. Suppressive effects of long-term exposure to P-nitrophenol on gonadal development, hormonal profile with disruption of tissue integrity, and activation of caspase-3 in male Japanese quail (Coturnix japonica). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2015; 22:10930-42. [PMID: 25772865 PMCID: PMC4490174 DOI: 10.1007/s11356-015-4245-9] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Accepted: 02/17/2015] [Indexed: 06/03/2023]
Abstract
P-Nitrophenol (PNP) is considered to be one of nitrophenol derivatives of diesel exhaust particles. PNP is a major metabolite of some organophosphorus compounds. PNP is a persistent organic pollutant as well as one of endocrine-disrupting compounds. Consequently, bioaccumulation of PNP potentiates toxicity. The objectives of the current study were to assess in vivo adverse effects of long-term low doses of PNP exposure on reproductive system during development stage. Twenty-eight-day-old male Japanese quails were orally administered different doses of PNP (0, 0.01, 0.1, 1 mg/kg body weight) daily for 2.5 months. Testicular histopathology, hormones, caspase-3 (CASP3), and claudin-1 (CLDN1) tight junction protein, as well as plasma hormones were analyzed. The results revealed that long-term PNP exposure caused testicular histopathological changes such as vacuolation of spermatogenic cell and spermatocyte with significant testicular and cloacal gland atrophy. PNP activated CASP3 enzyme that is an apoptosis-related cysteine peptidase. Besides, it disrupted the expression of CLDN1. Furthermore, a substantial decrease in plasma concentrations of luteinizing hormone (LH) and testosterone was observed after 2 and 2.5 months in the PNP-treated groups. Meanwhile, the pituitary LH did not significantly change. Site of action of PNP may be peripheral on testicular development and/or centrally on the hypothalamic-pituitary-gonadal axis through reduction of pulsatile secretion of gonadotrophin-releasing hormone. Consequently, it may reduce the sensitivity of the anterior pituitary gland to secrete LH. In conclusion, PNP induced profound endocrine disruption in the form of hormonal imbalance, induction of CASP3, and disruption of CLDN1 expression in the testis. Hence, it may hinder the reproductive processes.
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Affiliation(s)
- Eman Ahmed
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai-cho, Fuchu, Tokyo, 183-8509, Japan,
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34
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Zhang Y, Song M, Rui X, Pu S, Li Y, Li C. Supplemental dietary phytosterin protects against 4-nitrophenol-induced oxidative stress and apoptosis in rat testes. Toxicol Rep 2015; 2:664-676. [PMID: 28962402 PMCID: PMC5598167 DOI: 10.1016/j.toxrep.2015.04.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 04/27/2015] [Accepted: 04/27/2015] [Indexed: 11/26/2022] Open
Abstract
4-Nitrophenol (PNP), is generally regarded as an environmental endocrine disruptor (EED). Phytosterin (PS), a new feed additive, possesses highly efficient antioxidant activities. The transcription factor, nuclear factor-erythroid 2-related factor 2 (Nrf2), is an important regulator of cellular oxidative stress. Using rats, this study examined PNP-induced testicular oxidative damage and PS-mediated protection against that damage. The generation of MDA and H2O2 upon PNP and PS treatment was milder than that upon treatment with PNP alone. This mitigation was accompanied by partially reversed changes in SOD, CAT, GSH and GSH-Px. Moreover, PNP significantly reduced the caudal epididymal sperm counts and serum testosterone levels. Typical morphological changes were also observed in the testes of PNP-treated animals. PNP reduced the transcriptional level of Nrf2, as evaluated by RT-PCR, but it promoted the dissociation from the Nrf2 complex, stabilization and translocation into the nucleus, as evaluated by immunohistochemistry and Western blotting. In addition, PNP enhanced the Nrf2-dependent gene expression of heme oxygenase-1 (HO-1) and glutamate–cysteine ligase catalytic subunit (GCLC). These results suggest that the Nrf2 pathway plays an important role in PNP-induced oxidative damage and that PS possesses modulatory effects on PNP-induced oxidative damage in rat testes.
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Key Words
- 4-Nitrophenol
- 4-Nitrophenol (PubChem CID: 980)
- ARE, antioxidant response element
- Antioxidant gene
- Apoptosis
- CAT, catalase
- Campesterol (PubChem CID: 457801)
- DEP, diesel exhaust particles
- EED, environmental endocrine disruptor
- GCLC, γ-glutamylcysteine synthetase
- GSH, glutathione
- GSH-Px, glutathione peroxidase
- HO-1, heme oxygenase 1
- Keap1, kelch-like ECH-associated protein 1
- NF-κB, nuclear factor-κB
- NQO1, NAD(P)H: quinone oxidoreductase 1
- Nrf2
- Nrf2, nuclear factor erythroid 2-related factor 2
- PNP, 4-nitrophenol
- PS, phytosterins
- Phytosterin
- ROS, reactive oxygen species
- SOD, superoxide dismutase
- Stigmasterol (PubChem CID: 5280794)
- Testis
- β-Sitosterol (PubChem CID: 222284)
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Affiliation(s)
- Yonghui Zhang
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China.,Laboratory of Nuclear Receptors & Cancer Research, Basic Medical Research Center, Nantong University School of Medicine, Nanjing 226001, Jiangsu, PR China
| | - Meiyan Song
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xiaoli Rui
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Shaoxia Pu
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Yansen Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
| | - ChunMei Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China
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35
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Hernández-Gordillo A, Obregón S, Paraguay-Delgado F, Rodríguez-González V. Effective photoreduction of a nitroaromatic environmental endocrine disruptor by AgNPs functionalized on nanocrystalline TiO2. RSC Adv 2015. [DOI: 10.1039/c5ra00094g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Unprecedented photoactivity of silver nanoparticles photodeposited on nanocrystalline TiO2 for the efficient reduction of 4-nitrophenol at room temperature is reported.
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Affiliation(s)
- A. Hernández-Gordillo
- División de Materiales Avanzados
- Instituto Potosino de Investigación Científica y Tecnológica
- San Luis Potosí
- Mexico
- Instituto de Investigaciones en Materiales
| | - S. Obregón
- Instituto de Ciencia de Materiales de Sevilla
- Centro Mixto Universidad de Sevilla-CSIC
- 41092 Sevilla
- Spain
| | - F. Paraguay-Delgado
- Departamento de Materiales Nanoestructurados
- Centro de Investigación en Materiales Avanzados
- 31109 Chih
- Mexico
| | - V. Rodríguez-González
- División de Materiales Avanzados
- Instituto Potosino de Investigación Científica y Tecnológica
- San Luis Potosí
- Mexico
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36
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Kundu S, Chanda A, Thompson JVK, Diabes G, Khetan SK, Ryabov AD, Collins TJ. Rapid degradation of oxidation resistant nitrophenols by TAML activator and H2O2. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01426j] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TAML and H2O2remove toxic nitrophenol pollutants producing innocuous minerals. Mechanistic studies reveal the substrate inhibition due to the reversible binding of nitrophenolate to iron(iii) of the TAML resting state.
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Affiliation(s)
- Soumen Kundu
- Institute for Green Science
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Arani Chanda
- Institute for Green Science
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Jasper V. K. Thompson
- Institute for Green Science
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - George Diabes
- Institute for Green Science
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Sushil K. Khetan
- Institute for Green Science
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Alexander D. Ryabov
- Institute for Green Science
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
| | - Terrence J. Collins
- Institute for Green Science
- Department of Chemistry
- Carnegie Mellon University
- Pittsburgh
- USA
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37
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Woo H, Lee K, Park S, Park KH. Magnetically separable and recyclable Fe3O4-supported Ag nanocatalysts for reduction of nitro compounds and selective hydration of nitriles to amides in water. Molecules 2014; 19:699-712. [PMID: 24402201 PMCID: PMC6271850 DOI: 10.3390/molecules19010699] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 12/27/2013] [Accepted: 12/30/2013] [Indexed: 11/24/2022] Open
Abstract
As hybrid nanostructures have become more important in many fields of chemistry, Ag nanoparticles (NPs) are being increasingly immobilized onto Fe3O4 microspheres in situ. Structural characterization reveals that the Ag NPs are uniformly immobilized in the Fe3O4 microsphere-based supports. Moreover, Ag NPs are more stable in the hybrid structure than in the naked state and show high catalytic activity for the reduction of nitro compounds and hydration of nitriles to amides in water. The Fe3O4 microspheres were recycled several times using an external magnet.
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Affiliation(s)
- Hyunje Woo
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea.
| | - Kyoungho Lee
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea.
| | - Sungkyun Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea.
| | - Kang Hyun Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 609-735, Korea.
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38
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Zhang Y, Piao Y, Li Y, Song M, Tang P, Li C. 4-Nitrophenol induces Leydig cells hyperplasia, which may contribute to the differential modulation of the androgen receptor and estrogen receptor-α and -β expression in male rat testes. Toxicol Lett 2013; 223:228-35. [DOI: 10.1016/j.toxlet.2013.09.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 09/15/2013] [Accepted: 09/16/2013] [Indexed: 10/26/2022]
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39
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Lam SH, Ung CY, Hlaing MM, Hu J, Li ZH, Mathavan S, Gong Z. Molecular insights into 4-nitrophenol-induced hepatotoxicity in zebrafish: Transcriptomic, histological and targeted gene expression analyses. Biochim Biophys Acta Gen Subj 2013; 1830:4778-89. [DOI: 10.1016/j.bbagen.2013.06.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 05/03/2013] [Accepted: 06/09/2013] [Indexed: 12/17/2022]
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Intrauterine exposure to diesel exhaust diminishes adult ovarian reserve. Fertil Steril 2013; 99:1681-8. [PMID: 23419929 DOI: 10.1016/j.fertnstert.2013.01.103] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 12/20/2012] [Accepted: 01/14/2013] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To analyze ovarian and uterine morphologic changes resulting from intrauterine and postnatal exposure to diesel exhaust. DESIGN Crossover study. Experimental groups: intrauterine and postnatal clean air exposure; intrauterine exposure to diesel only; postnatal exposure to diesel only; and intrauterine and postnatal exposure to diesel. SETTING Laboratory of Experimental Air Pollution. ANIMAL(S) Swiss mice. INTERVENTION(S) Mice exposed to diesel exhaust with doses that correspond to the daily average PM₂.₅ levels (fine particles in the ambient air 2.5 μm or less in size) reported by the World Health Organization. MAIN OUTCOME MEASURE(S) Morphometric analyses of the ovaries and uterus were performed to define the relative area occupied by follicles, corpus luteum, and stroma and the proportionate area of glands, epithelial layer, and stroma within the uterine endometrium. RESULT(S) A significant reduction in the proportion of primordial follicles was observed in intrauterine-exposed animals, those exposed during the postnatal period, and in animals exposed during both phases. Primary follicle proportion was reduced in animals exposed during pregnancy. No significant changes were detected in uterine morphology. CONCLUSION(S) Intrauterine exposure to acceptable levels of diesel exhaust compromises the reproductive potential of female mice, diminishing ovarian reserve when sexual maturity is achieved. This effect could increase the risk of premature menopause. The findings raise concern about current environmental guidelines for diesel exposure, warranting more careful examination of this issue in humans by regulatory authorities.
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41
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Bendi R, Imae T. Renewable catalyst with Cu nanoparticles embedded into cellulose nano-fiber film. RSC Adv 2013. [DOI: 10.1039/c3ra42689k] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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42
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Synthesis and characterization of Cu, Ag and Au dendrimer-encapsulated nanoparticles and their application in the reduction of 4-nitrophenol to 4-aminophenol. J Colloid Interface Sci 2013; 389:260-7. [DOI: 10.1016/j.jcis.2012.09.012] [Citation(s) in RCA: 214] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 09/07/2012] [Accepted: 09/11/2012] [Indexed: 02/03/2023]
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Li C, Li X, Suzuki AK, Zhang Y, Fujitani Y, Nagaoka K, Watanabe G, Taya K. Effects of exposure to nanoparticle-rich diesel exhaust on pregnancy in rats. J Reprod Dev 2012; 59:145-50. [PMID: 23257834 PMCID: PMC3934203 DOI: 10.1262/jrd.2012-145] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Pollutants from burning of diesel fuel are hazardous to human health. Nanoparticles in diesel exhaust potentially have profound impact on fetal development and maternal endocrine function during pregnancy due to their ability to penetrate deeply into the body. To investigate the effects of nanoparticle-rich diesel exhaust (NR-DE) on pregnancy, pregnant rats were exposed to NR-DE, filtered diesel exhaust (F-DE) or clean air for 19 days of gestation. Relative weights of maternal liver and spleen to body weight were significantly lower in the NR-DE and F-DE groups than those in the control group. The serum concentration of maternal progesterone was significantly lower, while those of luteinizing hormone (LH) and corticosterone were significantly higher in the NR-DE and F-DE groups than those in the control group. The serum concentration of estradiol-17β was significantly higher in the F-DE group than that in the control group. The levels of cytochrome P450 side-chain cleavage enzyme, 3β-hydroxysteroid dehydrogenase and LH receptor mRNA in the corpus luteum were significantly lower in the NR-DE and F-DE groups than those in the control. In fetuses, body weight and crown-rump length were significantly greater and shorter, respectively, in both males and females in the NR-DE and F-DE groups than those in the control group. These results demonstrate that exposure of pregnant rats to NR-DE and F-DE suppresses the function of corpora lutea and stimulates the function of the adrenal cortex, suggesting a risk of spontaneous abortion associated with maternal hormonal changes.
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Affiliation(s)
- ChunMei Li
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China.
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44
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Yue Z, She RP, Bao HH, Tian J, Yu P, Zhu J, Chang L, Ding Y, Sun Q. Necrosis and apoptosis of renal tubular epithelial cells in rats exposed to 3-methyl-4-nitrophenol. ENVIRONMENTAL TOXICOLOGY 2012; 27:653-661. [PMID: 21374789 DOI: 10.1002/tox.20688] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2010] [Revised: 11/10/2010] [Accepted: 11/16/2010] [Indexed: 05/30/2023]
Abstract
The 3-methyl-4-nitrophenol (4-nitro-m-cresol; PNMC) exists in diesel exhaust particles (DEP), and is also one of the degradation products of insecticide fenitrothion. To assess potential nephrotoxicity of PNMC, male Sprague-Dawley (SD) rats were subcutaneously dosed with PNMC at 1, 10, and 100 mg/kg/day for five consecutive days. No significant changes were detected in body weights and relative weights of kidneys by the treatment of PNMC. However, the extent of cellular necrosis was found to be severe in renal tubular epithelial cells of PNMC-treated rats. In addition, PNMC exposure significantly increased the number of terminal deoxynucleotidyle transferase-mediated dUTP nick end-labeling (TUNEL)-positive cells compared to the control in renal tubule of PNMC-treated rats. Moreover, immunohistochemical results indicated that significant decrease in the B-cell lymphoma 2 (Bcl-2) expressions andincrease in the Bcl-2 associated × protein (Bax) expression were detected in PNMC-treated rats. The ratio of Bcl-2/Bax was also reduced significantly at PNMC-treated rats dosed at 10 or 100 mg kg(-1) . Furthermore, the significant increase of FAS (CD95/APO-1) expression was found in the groups dosed at 10 or 100 mg kg(-1) of PNMC. The expression of Caspase-3 was higher in PNMC-treated rats, compared to the control group. Our results indicated that activation of mitochondria and Caspase-3 protease may contribute to the PNMC-induced apoptosis, suggesting that PNMC could cause both necrosis and apoptosis resulting in cell death of renal epithelium cells and could induce renal toxicity.
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Affiliation(s)
- Zhuo Yue
- College of Veterinary Medicine, China Agricultural University, Beijing 100193, People's Republic of China
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45
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Win-Shwe TT, Fujimaki H, Fujitani Y, Hirano S. Novel object recognition ability in female mice following exposure to nanoparticle-rich diesel exhaust. Toxicol Appl Pharmacol 2012; 262:355-62. [PMID: 22659509 DOI: 10.1016/j.taap.2012.05.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 05/17/2012] [Accepted: 05/23/2012] [Indexed: 01/21/2023]
Abstract
Recently, our laboratory reported that exposure to nanoparticle-rich diesel exhaust (NRDE) for 3 months impaired hippocampus-dependent spatial learning ability and up-regulated the expressions of memory function-related genes in the hippocampus of female mice. However, whether NRDE affects the hippocampus-dependent non-spatial learning ability and the mechanism of NRDE-induced neurotoxicity was unknown. Female BALB/c mice were exposed to clean air, middle-dose NRDE (M-NRDE, 47 μg/m(3)), high-dose NRDE (H-NRDE, 129 μg/m(3)), or filtered H-NRDE (F-DE) for 3 months. We then investigated the effect of NRDE exposure on non-spatial learning ability and the expression of genes related to glutamate neurotransmission using a novel object recognition test and a real-time RT-PCR analysis, respectively. We also examined microglia marker Iba1 immunoreactivity in the hippocampus using immunohistochemical analyses. Mice exposed to H-NRDE or F-DE could not discriminate between familiar and novel objects. The control and M-NRDE-exposed groups showed a significantly increased discrimination index, compared to the H-NRDE-exposed group. Although no significant changes in the expression levels of the NMDA receptor subunits were observed, the expression of glutamate transporter EAAT4 was decreased and that of glutamic acid decarboxylase GAD65 was increased in the hippocampus of H-NRDE-exposed mice, compared with the expression levels in control mice. We also found that microglia activation was prominent in the hippocampal area of the H-NRDE-exposed mice, compared with the other groups. These results indicated that exposure to NRDE for 3 months impaired the novel object recognition ability. The present study suggests that genes related to glutamate metabolism may be involved in the NRDE-induced neurotoxicity observed in the present mouse model.
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Affiliation(s)
- Tin-Tin Win-Shwe
- Center for Environmental Health Sciences, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan.
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46
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Ung CY, Lam SH, Zhang X, Li H, Ma J, Zhang L, Li B, Gong Z. Existence of inverted profile in chemically responsive molecular pathways in the zebrafish liver. PLoS One 2011; 6:e27819. [PMID: 22140468 PMCID: PMC3226580 DOI: 10.1371/journal.pone.0027819] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2011] [Accepted: 10/26/2011] [Indexed: 01/09/2023] Open
Abstract
How a living organism maintains its healthy equilibrium in response to endless exposure of potentially harmful chemicals is an important question in current biology. By transcriptomic analysis of zebrafish livers treated by various chemicals, we defined hubs as molecular pathways that are frequently perturbed by chemicals and have high degree of functional connectivity to other pathways. Our network analysis revealed that these hubs were organized into two groups showing inverted functionality with each other. Intriguingly, the inverted activity profiles in these two groups of hubs were observed to associate only with toxicopathological states but not with physiological changes. Furthermore, these inverted profiles were also present in rat, mouse, and human under certain toxicopathological conditions. Thus, toxicopathological-associated anti-correlated profiles in hubs not only indicate their potential use in diagnosis but also development of systems-based therapeutics to modulate gene expression by chemical approach in order to rewire the deregulated activities of hubs back to normal physiology.
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Affiliation(s)
- Choong Yong Ung
- Department of Biological Sciences, National University of Singapore, Queenstown, Singapore
- Department of Mathematics, National University of Singapore, Queenstown, Singapore
- * E-mail: (CYU); (ZG)
| | - Siew Hong Lam
- Department of Biological Sciences, National University of Singapore, Queenstown, Singapore
| | - Xun Zhang
- Graduate School for Integrative Sciences and Engineering, National University of Singapore, Queenstown, Singapore
- Department of Physics and Centre for Computational Science and Engineering, National University of Singapore, Queenstown, Singapore
| | - Hu Li
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts, United States of America
| | - Jing Ma
- Graduate School for Integrative Sciences and Engineering, National University of Singapore, Queenstown, Singapore
- Department of Physics and Centre for Computational Science and Engineering, National University of Singapore, Queenstown, Singapore
| | - Louxin Zhang
- Department of Mathematics, National University of Singapore, Queenstown, Singapore
- Graduate School for Integrative Sciences and Engineering, National University of Singapore, Queenstown, Singapore
| | - Baowen Li
- Graduate School for Integrative Sciences and Engineering, National University of Singapore, Queenstown, Singapore
- Department of Physics and Centre for Computational Science and Engineering, National University of Singapore, Queenstown, Singapore
| | - Zhiyuan Gong
- Department of Biological Sciences, National University of Singapore, Queenstown, Singapore
- * E-mail: (CYU); (ZG)
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Simultaneous analysis of chlorophenols, alkylphenols, nitrophenols and cresols in wastewater effluents, using solid phase extraction and further determination by gas chromatography–tandem mass spectrometry. Talanta 2011; 85:2397-404. [DOI: 10.1016/j.talanta.2011.07.081] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2011] [Revised: 07/13/2011] [Accepted: 07/23/2011] [Indexed: 11/23/2022]
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48
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Win-Shwe TT, Fujitani Y, Hirano S, Fujimaki H. [Exposure to nanoparticle-rich diesel exhaust affects hippocampal functions in mice]. Nihon Eiseigaku Zasshi 2011; 66:628-633. [PMID: 21996758 DOI: 10.1265/jjh.66.628] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Epidemiological studies have indicated associations between day-to-day particulate air pollution and increased risks of various adverse health outcomes. Although an association between exposure to diesel exhaust particles (DEPs) and the development of pulmonary inflammation has been reported, there are limited reports on the neurotoxic effects of DEPs, particularly those of nanoparticle-rich diesel exhaust (NRDE). In this minireview, we highlighted the effects of NRDE which was generated in the National Institute for Environmental Studies, on hippocampus-dependent spatial learning ability and the expression of memory-function-related genes, neurotrophins, and proinflammatory cytokines in a mouse model.
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Affiliation(s)
- Tin Tin Win-Shwe
- Center for Environmental Risk Research, National Institute for Environmental Studies. Ibaraki, Japan.
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Win-Shwe TT, Yamamoto S, Fujitani Y, Hirano S, Fujimaki H. Nanoparticle-rich diesel exhaust affects hippocampal-dependent spatial learning and NMDA receptor subunit expression in female mice. Nanotoxicology 2011; 6:543-53. [PMID: 21663545 DOI: 10.3109/17435390.2011.590904] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We investigated the effect of exposure to nanoparticle-rich diesel exhaust (NRDE) on hippocampal-dependent spatial learning and memory function-related gene expressions in female mice. Female BALB/c mice were exposed to clean air, middle-dose NRDE (M-NRDE), high-dose NRDE (H-NRDE) or filtered diesel exhaust (F-DE) for three months. A Morris water maze apparatus was used to examine spatial learning. The expression levels of the N-methyl-D-aspartate (NMDA) receptor subunit, proinflammatory cytokines and neurotrophin mRNAs in the hippocampus were then investigated using real-time RT-PCR. Mice exposed to H-NRDE required a longer time to reach the hidden platform and showed higher mRNA expression levels of the NMDA receptor subunit NR2A, the proinflammatory cytokine CCL3, and brain-derived neurotrophic factor (BDNF) in the hippocampus, compared with the findings in the control group. These results indicate that three months of exposure to NRDE affected spatial learning and memory function-related gene expressions in the female mouse hippocampus.
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Affiliation(s)
- Tin-Tin Win-Shwe
- Center for Environmental Risk Research , National Institute for Environmental Studies , 16-2 Onogawa, Tsukuba, Ibaraki, Japan.
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50
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Ganranoo L, Mishra SK, Azad AK, Shigihara A, Dasgupta PK, Breitbach ZS, Armstrong DW, Grudpan K, Rappenglueck B. Measurement of nitrophenols in rain and air by two-dimensional liquid chromatography-chemically active liquid core waveguide spectrometry. Anal Chem 2010; 82:5838-43. [PMID: 20518471 DOI: 10.1021/ac101015y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a novel system to analyze atmospheric nitrophenols (NPs). Rain or air sample extracts (1 mL) are preconcentrated on a narrow bore (2 mm) aliphatic anion exchanger. In the absence of strong retention of NPs exhibited by aromatic ion exchangers, retained NPs are eluted as a plug by injection of 100 microL of 0.1 M Na(2)SO(4) on to a short (2 x 50 mm) reverse phase C-18 column packed with 2.2 mum particles. The salt plug passes through the C-18 column unretained while the NPs are separated by an ammonium acetate buffered methanol-water eluent, compatible with mass spectrometry (MS). The eluted NPs are measured with a long path Teflon AF-based liquid core waveguide (0.15 x 1420 mm) illuminated by a 403 nm light emitting diode and detected by a monolithic photodiode-operational amplifier. The waveguide is rendered chemically active by suspending it over concentrated ammonia that permeates into the lumen. The NPs ionize to the yellow anion form (lambda(max) approximately 400 nm). The separation of 4-nitrophenol, 2,4-dinitrophenol, 2-methyl-4-nitrophenol, 3-methyl-4-nitrophenol, and 2-nitrophenol (these are the dominant NPs, typically in that order, in both rain and air of Houston and Arlington, TX, confirmed by tandem MS) takes just over 5 min with respective S/N = 3 limits of detection (LODs) of 60, 12, 30, 67, and 23 pg/mL compared to MS/MS LODs of 20, 49, 11, 20, and 210 pg/mL. Illustrative air and rain data are presented.
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Affiliation(s)
- Lucksagoon Ganranoo
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, Texas 76019-0065, USA
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