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Jain J, Hasan W, Jat D, Biswas P, Yadav RS. Delayed in sensorimotor reflex ontogeny, slow physical growth, and impairments in behaviour as well as dopaminergic neuronal death in mice offspring following prenatally rotenone administration. Int J Dev Neurosci 2023; 83:518-531. [PMID: 37337287 DOI: 10.1002/jdn.10282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/21/2023] [Accepted: 05/15/2023] [Indexed: 06/21/2023] Open
Abstract
The environment is varying day by day with the introduction of chemicals such as pesticides, most of which have not been effectively studied for their influence on a susceptible group of population involving infants and pregnant females. Rotenone is an organic pesticide used to prepare Parkinson's disease models. A lot of literature is available on the toxicity of rotenone on the adult brain, but to the best of our knowledge, effect of rotenone on prenatally exposed mice has never been investigated yet. Therefore, the recent work aims to evaluate the toxic effect of rotenone on mice, exposed prenatally. We exposed female mice to rotenone at the dose of 5 mg/Kg b.w. throughout the gestational period with oral gavage. We then investigated the effects of rotenone on neonate's central nervous systems as well as on postnatal day (PD) 35 offspring. In the rotenone group, we observed slow physical growth, delays in physical milestones and sensorimotor reflex in neonates and induction of anxiety and impairment in cognitive performances of offspring at PD-35. Additionally, immunohistochemical analysis revealed a marked reduction in TH-positive neurons in substantia nigra. Histological examination of the cerebellum revealed a decrease in Purkinje neurons in the rotenone exposed group as compared to the control. The data from the study showed that prenatally exposure to rotenone affects growth, physical milestones, neuronal population and behaviour of mice when indirectly exposed to the offspring through their mother. This study could provide a great contribution to researchers to find out the molecular mechanism and participating signalling pathway behind these outcomes.
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Affiliation(s)
- Juli Jain
- Neuroscience Research Lab, School of Biological Sciences, Department of Zoology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, India
| | - Whidul Hasan
- Neurology Department, Harward Medical School, Harvard Medical School, Boston, USA
| | - Deepali Jat
- Neuroscience Research Lab, School of Biological Sciences, Department of Zoology, Dr. Harisingh Gour Vishwavidyalaya (A Central University), Sagar, India
| | - Pronit Biswas
- Department of Life Sciences, Christ (Deemed-to-be University), Bangalore, India
| | - Rajesh Singh Yadav
- School of Forensic Science, National Forensic Sciences University, Bhopal, India
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Zhan F, Wang YC, Liu QM, Guo MJ, Zhu HM, Zhang C, Xu DX, Meng XH. Paternal fenvalerate exposure transgenerationally impairs cognition and hippocampus in female offspring. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 223:112565. [PMID: 34358930 DOI: 10.1016/j.ecoenv.2021.112565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 07/08/2021] [Accepted: 07/25/2021] [Indexed: 06/13/2023]
Abstract
The impairments of maternal fenvalerate exposure have been well documented in previous study, but little was known about the effects of paternal fenvalerate exposure. The current study aimed to assess the effects of paternal fenvalerate exposure on spatial cognition and hippocampus across generations. Adult male mice (F0) were orally administered with fenvalerate (0, 2 or 20 mg/kg) for 5 weeks. F0 males were mated with untreated-females to generate F1 generation. F1 males were mated with F1 control females to generate F2 generation. For F1 and F2 adult offspring, spatial learning and memory were detected by Morris water maze. Results showed that spatial learning and memory were impaired in F1 females but not F1 males derived from F0 males exposed to 20 mg/kg FEN. Furthermore, significant impairment of spatial learning and memory were found in F2 females but not F2 males derived from F0 males exposed to 20 mg/kg FEN. As expected, histopathology showed that neural density in hippocampal CA3 region was reduced in F1 and F2 females but not F1 and F2 males derived from F0 males exposed to 20 mg/kg FEN. Mechanistically, hippocampal thyroid hormone receptor alpha1 (TRα1) was down-regulated in F1 and F2 females derived from F0 males exposed to 20 mg/kg FEN. Correspondingly, hippocampal brain-derived neurotrophic factor, tropomyosin receptor kinase B and p75 neurotrophin receptor, three downstream genes of TR signaling, were down-regulated in F1 and F2 females. Taken together, the present study firstly found that paternal fenvalerate exposure transgenerationally impaired spatial cognition in a gender-dependent manner. Hippocampal TR signaling may, at least partially, contribute to the process of cognitive impairment induced by paternal fenvalerate exposure. Further exploration in the mode of action of fenvalerate is critically important to promote human health and environmental safety.
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Affiliation(s)
- Feng Zhan
- School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, Anhui, China; NHC Key Laboratory of study on abnormal gametes and reproductive tract, No 81 Meishan Road, Hefei, Anhui, China
| | - Ye-Cheng Wang
- School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, Anhui, China; NHC Key Laboratory of study on abnormal gametes and reproductive tract, No 81 Meishan Road, Hefei, Anhui, China
| | - Quan-Mei Liu
- School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, Anhui, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, Anhui, China
| | - Meng-Juan Guo
- School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, Anhui, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, Anhui, China
| | - Hui-Min Zhu
- School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, Anhui, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, Anhui, China
| | - Chi Zhang
- School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, Anhui, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, Anhui, China
| | - De-Xiang Xu
- School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, Anhui, China; NHC Key Laboratory of study on abnormal gametes and reproductive tract, No 81 Meishan Road, Hefei, Anhui, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, Anhui, China.
| | - Xiu-Hong Meng
- School of Public Health, Anhui Medical University, Hefei, Anhui, China; Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, No 81 Meishan Road, Hefei, Anhui, China; NHC Key Laboratory of study on abnormal gametes and reproductive tract, No 81 Meishan Road, Hefei, Anhui, China; Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, No 81 Meishan Road, Hefei, Anhui, China.
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Manna B, Dutta SM, Dalapati S, Maiti S. Oxidative Stress-induced Toxicity and DNA Stability in Some Agri-field Based Livestock/Insect by Widely used Pesticides. Comb Chem High Throughput Screen 2021; 23:972-980. [PMID: 32294033 DOI: 10.2174/1386207323666200415110745] [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: 12/15/2019] [Revised: 03/17/2020] [Accepted: 03/25/2020] [Indexed: 11/22/2022]
Abstract
AIM AND OBJECTIVE Humans continuously use pesticides in the field to control the pest population and weeds for considerable agricultural productivity. Side-by species like grazinganimals, insects and other species are adversely affected by or become resistant to pesticides. Insects, birds and cattle are highly abundant dwellers of the agriculture-field and represent three distinct phyla having versatile physiological features. Besides higher agricultural-productivity, protection to several species will maintain ecological/environmental balance. Studies on the effect of widely used pesticides on their DNA-stability and important enzymatic-activities are insufficient. MATERIALS AND METHODS Antioxidant-activity (Superoxide-dismutase; SOD/Catalase- by gelzymogram- assay) and DNA-stability (fragmentation-assay) in hepatic/gut tissues were studied after in vitro exposure of Chlorpyrifos, Fenvalerate, Nimbecidine or Azadirachtin to goat/cow/poultry-hen/insect. RESULTS In general, all pesticides were found to impair enzymatic-activities. However, lower organisms were affected more than higher vertebrates by azadirachtin-treatment. DNA fragmentation was found more in insects/poultry-birds than that of the cattle in hepatic/gut tissues. Inversely, toxicity/antioxidant marker-enzymes were more responsive in insect gut-tissues. However, mitochondrialtoxicity revealed variable effects on different species. It has been noticed that chlorpyrifos is the most toxic pesticide, followed by Fenvalerate/Nimbecidine (Azadirachtin, AZT). Nevertheless, AZT revealed its higher DNA-destabilizing effects on the field-insects as compared to the other animals. CONCLUSION Field-insects are highly integrated into the ecosystem and the local bio-geo-chemical cycle, which may be impaired. Pesticides may have toxic effects on higher vertebrates and may sustain in the soil after being metabolized into their different derivatives. Some of the sensitive biochemical parameters of this organism may be used as a biomarker for pesticide toxicity.
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Affiliation(s)
- Balaram Manna
- Cell and Molecular Therapeutics Laboratory, Department of Biochemistry and Biotechnology, Oriental Institute of Science and Technology, Midnapore 721102, West Bengal, India
| | - Sangita M Dutta
- Department of Biological Sciences, Midnapore City College, Midnapore, West Bengal, India
| | - Subrata Dalapati
- Cell and Molecular Therapeutics Laboratory, Department of Biochemistry and Biotechnology, Oriental Institute of Science and Technology, Midnapore 721102, West Bengal, India
| | - Smarajit Maiti
- Cell and Molecular Therapeutics Laboratory, Department of Biochemistry and Biotechnology, Oriental Institute of Science and Technology, Midnapore 721102, West Bengal, India
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Granja MG, Alves LP, Leardini-Tristão M, Saul ME, Bortoni LC, de Moraes FM, Ferreira EC, de Moraes BPT, da Silva VZ, Dos Santos AFR, Silva AR, Gonçalves-de-Albuquerque CF, Bambini-Junior V, Weyrich AS, Rondina MT, Zimmerman GA, de Castro-Faria-Neto HC. Inflammatory, synaptic, motor, and behavioral alterations induced by gestational sepsis on the offspring at different stages of life. J Neuroinflammation 2021; 18:60. [PMID: 33632243 PMCID: PMC7905683 DOI: 10.1186/s12974-021-02106-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 02/09/2021] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND The term sepsis is used to designate a systemic condition of infection and inflammation associated with hemodynamic changes that result in organic dysfunction. Gestational sepsis can impair the development of the central nervous system and may promote permanent behavior alterations in the offspring. The aim of our work was to evaluate the effects of maternal sepsis on inflammatory cytokine levels and synaptic proteins in the hippocampus, neocortex, frontal cortex, and cerebellum of neonatal, young, and adult mice. Additionally, we analyzed the motor development, behavioral features, and cognitive impairments in neonatal, young and adult offspring. METHODS Pregnant mice at the 14th embryonic day (E14) were intratracheally instilled with saline 0.9% solution (control group) or Klebsiella spp. (3 × 108 CFU) (sepsis group) and started on meropenem after 5 h. The offspring was sacrificed at postnatal day (P) 2, P8, P30, and P60 and samples of liver, lung, and brain were collected for TNF-α, IL-1β, and IL-6 measurements by ELISA. Synaptophysin, PSD95, and β-tubulin levels were analyzed by Western blot. Motor tests were performed at all analyzed ages and behavioral assessments were performed in offspring at P30 and P60. RESULTS Gestational sepsis induces a systemic pro-inflammatory response in neonates at P2 and P8 characterized by an increase in cytokine levels. Maternal sepsis induced systemic downregulation of pro-inflammatory cytokines, while in the hippocampus, neocortex, frontal cortex, and cerebellum an inflammatory response was detected. These changes in the brain immunity were accompanied by a reduction of synaptophysin and PSD95 levels in the hippocampus, neocortex, frontal cortex, and cerebellum, in all ages. Behavioral tests demonstrated motor impairment in neonates, and depressive-like behavior, fear-conditioned memory, and learning impairments in animals at P30 and P60, while spatial memory abilities were affected only at P60, indicating that gestational sepsis not only induces an inflammatory response in neonatal mouse brains, but also affects neurodevelopment, and leads to a plethora of behavioral alterations and cognitive impairments in the offspring. CONCLUSION These data suggest that maternal sepsis may be causatively related to the development of depression, learning, and memory impairments in the litter.
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Affiliation(s)
- Marcelo Gomes Granja
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Biologia Molecular e Celular, Universidade Federal do Estado do Rio de Janeiro - UNIRIO, Rio de Janeiro, Brazil
| | - Letícia Pires Alves
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Biologia Molecular e Celular, Universidade Federal do Estado do Rio de Janeiro - UNIRIO, Rio de Janeiro, Brazil
| | - Marina Leardini-Tristão
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
| | - Michelle Edelman Saul
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
- Faculdade de Medicina, Universidade Estácio de Sá - UNESA, Rio de Janeiro, Brazil
| | - Letícia Coelho Bortoni
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
- Faculdade de Medicina, Universidade Estácio de Sá - UNESA, Rio de Janeiro, Brazil
| | - Flávia Maciel de Moraes
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
| | - Erica Camila Ferreira
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
| | - Bianca Portugal Tavares de Moraes
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
- Programa de Pós-graduação em Neurociências, Universidade Federal Fluminense - UFF, Niterói, Rio de Janeiro, Brazil
| | - Victória Zerboni da Silva
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
| | | | - Adriana Ribeiro Silva
- Laboratório de Imunofarmacologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz - Fiocruz, Rio de Janeiro, Brazil
| | | | - Victorio Bambini-Junior
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, PR1 2HE, Lancashire, Preston, England, UK
| | - Andrew S Weyrich
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, PR1 2HE, Lancashire, Preston, England, UK
| | - Matthew T Rondina
- Department of Internal Medicine and Molecular Medicine Program, University of Utah, Salt Lake City, UT, USA
- Department of Internal Medicine and Pathology, University of Utah, Salt Lake City, UT, USA
- Department of Internal Medicine and GRECC, George E. Wahlen VAMC, Salt Lake City, UT, USA
| | - Guy A Zimmerman
- Department of Internal Medicine and Molecular Medicine Program, University of Utah, Salt Lake City, UT, USA
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Zhu Q, Yang Y, Lao Z, Zhong Y, Zhang K, Zhao S. Acute and chronic toxicity of deltamethrin, permethrin, and dihaloacetylated heterocyclic pyrethroids in mice. PEST MANAGEMENT SCIENCE 2020; 76:4210-4221. [PMID: 32596996 DOI: 10.1002/ps.5978] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/12/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Pyrethroids, a class of insecticides, that act on the nervous system of insects. Frequent consumption of foods with pyrethroid residues increase the risk of developmental and neurological diseases in humans. Assessing the toxicity of novel synthetic pyrethroids to mammals is also critical to the development of agrochemicals. RESULTS Using mice as models, the acute and chronic toxicity of deltamethrin, permethrin, dihaloacetylated pyrethroids to mammals was researched by gavage administration. Acute toxicity assessment displayed that the median lethal dose (LD50 ) of deltamethrin, permethrin and dihaloacetylated heterocyclic pyrethroids DCA-O, DCA-01, and DCA-11 tested were greater than 500 mg/kg of weight. Furthermore, chronic toxicity assessment demonstrated that deltamethrin, permethrin caused epidermal damage near the genitals, while dihaloacetylated heterocyclic pyrethroids DCA-O, DCA-01, and DCA-11 showed no relevant symptoms. However, both the acute and chronic toxicity assessment suggested that pyrethroids exposure induced mice loss weight. Additionally, the elevated plus maze (EPM) test showed that pyrethroids caused anxiety-like behaviors and no motor defects in Kunming mice. Beside, during the sucrose preference test (SPT), 60-day pyrethroids exposure increased excitatory behaviors in mice. However, the neurochemical studies displayed that pyrethroids exposure increased the total amount of glutamate (Gln), glutamine (Glu) and γ-aminobutyric acid (GABA) in the mice's blood. CONCLUSION Pyrethroids exposure induced weight loss in mice, although the acute oral toxicity of deltamethrin, permethrin and dihaloacetylated heterocyclic pyrethroids DCA-O, DCA-01, and DCA-11 was low. However, regarding chronic toxicity, deltamethrin, permethrin and dihaloacetylated heterocyclic pyrethroids DCA-O, DCA-01, and DCA-11 induced anxiety-like behaviors, excitatory behaviors, Gln-Glu-GABA circulatory dysfunction in blood. Particularly, deltamethrin, though permethrin also had reproductive toxicity. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Qiuyan Zhu
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P. R. China
| | - Yang Yang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P. R. China
| | - Zhiting Lao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P. R. China
| | - Yingying Zhong
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P. R. China
| | - Kun Zhang
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P. R. China
- Faculty of Biotechnology and Health, Wuyi University, Jiangmen, P. R. China
| | - Suqing Zhao
- School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, P. R. China
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Guo C, Yang Y, Shi MX, Wang B, Liu JJ, Xu DX, Meng XH. Critical time window of fenvalerate-induced fetal intrauterine growth restriction in mice. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:186-193. [PMID: 30708230 DOI: 10.1016/j.ecoenv.2019.01.054] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 01/08/2019] [Accepted: 01/12/2019] [Indexed: 06/09/2023]
Abstract
Fenvalerate (FEN), a representative type II pyrethroid, is a widely used pyrethroid insecticide and a potential environmental contaminant. Several studies demonstrated that gestational FEN exposure induced intrauterine growth restriction (IUGR). However, the critical time window of FEN-induced fetal IUGR remains obscure. The present study aimed to identify the critical window of FEN-induced fetal IUGR. Pregnant mice were administered corn oil or FEN (20 mg/kg) by gavage daily at the early gestational stage (GD0-GD6), middle gestational stage (GD7-GD12) or late gestational stage (GD13-GD17). The results showed that the rates of fetal IUGR were markedly increased only in the mice exposed to FEN on GD13-GD17 but not in the mice exposed to FEN on GD7-GD12 or GD0-GD6. Further analysis showed that the blood sinusoid area in the placental labyrinth layer was reduced in the mice exposed to FEN on GD13-GD17. In addition, CD34+ microvessel density in the labyrinthine region was decreased in the male and female fetuses whose mothers were exposed to FEN on GD13-GD17. Mechanistic analysis found that the glutathione level was decreased in the FEN-exposed placentas. In contrast, the levels of 3-nitrotyrosine and malondialdehyde, two oxidative stress markers, were increased in FEN-exposed placentas. Heme oxygenase-1, inducible nitric oxide synthase, catalase and peroxiredoxin-3, which are antioxidant enzymes, were upregulated in the FEN-exposed placentas. The present study suggests that the late gestational stage is a critical time window of FEN-induced fetal IUGR. Placental oxidative stress may be, at least partially, involved in the process of FEN-induced placental damage and fetal IUGR.
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Affiliation(s)
- Ce Guo
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - Yang Yang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - Meng-Xing Shi
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - Bo Wang
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - Ji-Jie Liu
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China
| | - De-Xiang Xu
- Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China; Department of Toxicology, School of Public Health, Anhui Medical University, Hefei, Anhui, China.
| | - Xiu-Hong Meng
- Department of Maternal, Child and Adolescent Health, School of Public Health, Anhui Medical University, Hefei, Anhui, China; Anhui Provincial Key Laboratory of Population Health & Aristogenics, Hefei, Anhui, China.
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