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Curtis MA, Saferin N, Nguyen JH, Imami AS, Ryan WG, Neifer KL, Miller GW, Burkett JP. Developmental pyrethroid exposure in mouse leads to disrupted brain metabolism in adulthood. Neurotoxicology 2024; 103:87-95. [PMID: 38876425 DOI: 10.1016/j.neuro.2024.06.007] [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: 03/27/2024] [Revised: 05/24/2024] [Accepted: 06/11/2024] [Indexed: 06/16/2024]
Abstract
Environmental and genetic risk factors, and their interactions, contribute significantly to the etiology of neurodevelopmental disorders (NDDs). Recent epidemiology studies have implicated pyrethroid pesticides as an environmental risk factor for autism and developmental delay. Our previous research showed that low-dose developmental exposure to the pyrethroid pesticide deltamethrin in mice caused male-biased changes in the brain and in NDD-relevant behaviors in adulthood. Here, we used a metabolomics approach to determine the broadest possible set of metabolic changes in the adult male mouse brain caused by low-dose pyrethroid exposure during development. Using a litter-based design, we exposed mouse dams during pregnancy and lactation to deltamethrin (3 mg/kg or vehicle every 3 days) at a concentration well below the EPA-determined benchmark dose used for regulatory guidance. We raised male offspring to adulthood and collected whole brain samples for untargeted high-resolution metabolomics analysis. Developmentally exposed mice had disruptions in 116 metabolites which clustered into pathways for folate biosynthesis, retinol metabolism, and tryptophan metabolism. As a cross-validation, we integrated metabolomics and transcriptomics data from the same samples, which confirmed previous findings of altered dopamine signaling. These results suggest that pyrethroid exposure during development leads to disruptions in metabolism in the adult brain, which may inform both prevention and therapeutic strategies.
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Affiliation(s)
- Melissa A Curtis
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, United States
| | - Nilanjana Saferin
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, United States
| | - Jennifer H Nguyen
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, United States
| | - Ali S Imami
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, United States
| | - William G Ryan
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, United States
| | - Kari L Neifer
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, United States
| | - Gary W Miller
- Department of Environmental Health, Emory Rollins School of Public Health, Atlanta, GA 30322, United States; Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, United States
| | - James P Burkett
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614, United States.
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Curtis MA, Saferin N, Nguyen JH, Imami AS, Ryan WG, Neifer KL, Miller GW, Burkett JP. Developmental pyrethroid exposure in mouse leads to disrupted brain metabolism in adulthood. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.10.13.562226. [PMID: 37961675 PMCID: PMC10634990 DOI: 10.1101/2023.10.13.562226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Environmental and genetic risk factors, and their interactions, contribute significantly to the etiology of neurodevelopmental disorders (NDDs). Recent epidemiology studies have implicated pyrethroid pesticides as an environmental risk factor for autism and developmental delay. Our previous research showed that low-dose developmental exposure to the pyrethroid pesticide deltamethrin in mice caused male-biased changes in the brain and in NDD-relevant behaviors in adulthood. Here, we used a metabolomics approach to determine the broadest possible set of metabolic changes in the adult male mouse brain caused by low-dose pyrethroid exposure during development. Using a litter-based design, we exposed mouse dams during pregnancy and lactation to deltamethrin (3 mg/kg or vehicle every 3 days) at a concentration well below the EPA-determined benchmark dose used for regulatory guidance. We raised male offspring to adulthood and collected whole brain samples for untargeted high-resolution metabolomics analysis. Developmentally exposed mice had disruptions in 116 metabolites which clustered into pathways for folate biosynthesis, retinol metabolism, and tryptophan metabolism. As a cross-validation, we integrated metabolomics and transcriptomics data from the same samples, which confirmed previous findings of altered dopamine signaling. These results suggest that pyrethroid exposure during development leads to disruptions in metabolism in the adult brain, which may inform both prevention and therapeutic strategies.
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Affiliation(s)
- Melissa A. Curtis
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Nilanjana Saferin
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Jennifer H. Nguyen
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Ali S. Imami
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - William G. Ryan
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Kari L. Neifer
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
| | - Gary W. Miller
- Department of Environmental Health, Emory Rollins School of Public Health, Atlanta, GA 30322
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032 (current)
| | - James P. Burkett
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, OH 43614
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Xu Y, Wang L, Zhu J, Jiang P, Zhang Z, Li L, Wu Q. Chromium induced neurotoxicity by altering metabolism in zebrafish larvae. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 228:112983. [PMID: 34781135 DOI: 10.1016/j.ecoenv.2021.112983] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/05/2021] [Accepted: 11/08/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Recently, both trivalent chromium Cr (III) and hexavalent chromium Cr (VI) have been reported to produce neurotoxicity. However, the underlying mechanisms of the neurotoxicity caused by different chemical valence of chromium remain unclear. OBJECTIVE The purpose of this study was to investigate the mechanism of neurotoxicity induced by exposure to chromium with different valence states based on metabolic disturbance in zebrafish larvae. METHODS Zebrafish embryos were exposed to 1 mg/L Cr (III) and 1 mg/L Cr (VI) for 120 hpf respectively. The related indexes of neural development were observed by stereoscope and behavior analysis system. 8OH-dG were detected using enzyme-linked immunosorbent assay. The generation of reactive oxygen species was detected using an oxidant-sensing probe 2',7'-dichlorodihydrofluorescein diacetate. AChE activity was determined by a colorimetric assay based on hydrolysis of acetylcholine. The expression levels of neurodevelopmental genes and methyltransferase genes in juvenile zebrafish was analyzed by real-time PCR. The methylation status of neurogenin1 and neurod1 genes was detected by bisulfite sequencing PCR. The binding of H3K27me3 was detected by chromatin immunoprecipitation-qPCR. Metabolic profiles and one carbon metabolic analysis were performed by UPLC-MS. RESULTS There were no significant differences in survival rate, hatching rate and spontaneous movement of zebrafish in both Cr-exposed groups compared to the control. The malformation rate in Cr (VI) -exposed group was obviously increased compared to the control and Cr (III) -exposed group. At 48hpf and 72hpf of exposure, the embryonic heart rate in Cr (III)-exposed group was significantly higher than that of Cr (VI)-exposed group and the control. At 120hpf, zebrafish in both Cr-exposed groups exhibited decreasing changes in swimming distance and disturbance of sensitivity to light and dark. 8OH-dG in Cr (VI)-exposed group were significantly higher than that in the control. The generation of ROS in both Cr -exposed groups was significantly higher than that in the control. The activity of AchE was significantly decreased in both Cr-exposed groups compared to the control. Most of early neurogenesis related genes, such as α-tubulin, elavl3, gap43, sox19b, neurogenin1 and neurod1 in Cr-exposed groups were significantly up-regulated compared to those in the control. The expression of dnmt1 and dnmt3 genes was significantly down-regulated in both Cr-exposed groups. BSP-PCR results showed that genic sequences in the neurogenin1 and neurod1 genes have lower levels of DNA methylation in both Cr-exposed groups, especial in Cr (VI)-exposed group. ChIP analysis showed that there was a decrease in H3K27me3 binding within the corresponding region of neurogenin1 in both Cr-exposed groups and that of neurod1 in Cr (III)-exposed group. Untargeted metabolomic analysis showed that significant changes in metabolites induced by Cr exposure were associated with differences in primary bile acid biosynthesis, phospholipid biosynthesis (phosphatidylcholine biosynthesis and phosphatidylethanolamine biosynthesis), linoleic acid metabolism, arachidonic acid metabolism, amino acid metabolism, purine metabolism, betaine metabolism, spermidine and spermine biosynthesis, and folate metabolism, the last four of which are related to one carbon metabolism. Targeted analysis of one carbon metabolites (5-MT, Gly, Met, SAH and Hcy) related with folate cycle and methionine metabolism were significantly decreased upon Cr exposure. The elevated SAM to SAH ratio in both Cr- exposed group indicated the decreasing capacity for methylation reaction. CONCLUSION Cr (III) and Cr (VI) can induce neurotoxicity by interfering with one carbon metabolism and affecting DNA methylation and histone methylation to regulate the expression of neuro-related genes. Cr exposure also influenced primary bile acid biosynthesis and phospholipid biosynthesis, which are associated with neuroprotective effects and need to be further validated.
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Affiliation(s)
- Yawen Xu
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Li Wang
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Jun Zhu
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Ping Jiang
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Zhan Zhang
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Lei Li
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
| | - Qian Wu
- The Key Laboratory of Modern Toxicology of Ministry of Education and Department of Health Inspection and Quarantine, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
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Fleming TP, Sun C, Denisenko O, Caetano L, Aljahdali A, Gould JM, Khurana P. Environmental Exposures around Conception: Developmental Pathways Leading to Lifetime Disease Risk. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:9380. [PMID: 34501969 PMCID: PMC8431664 DOI: 10.3390/ijerph18179380] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 12/11/2022]
Abstract
Environment around conception can influence the developmental programme with lasting effects on gestational and postnatal phenotype and with consequences for adult health and disease risk. Peri-conception exposure comprises a crucial part of the 'Developmental Origins of Health and Disease' (DOHaD) concept. In this review, we consider the effects of maternal undernutrition experienced during the peri-conception period in select human models and in a mouse experimental model of protein restriction. Human datasets indicate that macronutrient deprivation around conception affect the epigenome, with enduring effects on cardiometabolic and neurological health. The mouse model, comprising maternal low protein diet exclusively during the peri-conception period, has revealed a stepwise progression in altered developmental programming following induction through maternal metabolite deficiency. This progression includes differential effects in extra-embryonic and embryonic cell lineages and tissues, leading to maladaptation in the growth trajectory and increased chronic disease comorbidities. The timeline embraces an array of mechanisms across nutrient sensing and signalling, cellular, metabolic, epigenetic and physiological processes with a coordinating role for mTORC1 signalling proposed. Early embryos appear active participants in environmental sensing to optimise the developmental programme for survival but with the trade-off of later disease. Similar adverse health outcomes may derive from other peri-conception environmental experiences, including maternal overnutrition, micronutrient availability, pollutant exposure and assisted reproductive treatments (ART) and support the need for preconception health before pregnancy.
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Affiliation(s)
- Tom P. Fleming
- Biological Sciences, Southampton General Hospital, University of Southampton, Southampton SO16 6YD, UK; (L.C.); (A.A.); (P.K.)
| | - Congshan Sun
- Departments of Neurology and Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA;
- Center for Genetic Muscle Disorders, Hugo W. Moser Research Institute at Kennedy Krieger Institute, Baltimore, MD 21205, USA
| | - Oleg Denisenko
- Department of Medicine, University of Washington, 850 Republican St., Rm 242, Seattle, WA 98109, USA;
| | - Laura Caetano
- Biological Sciences, Southampton General Hospital, University of Southampton, Southampton SO16 6YD, UK; (L.C.); (A.A.); (P.K.)
| | - Anan Aljahdali
- Biological Sciences, Southampton General Hospital, University of Southampton, Southampton SO16 6YD, UK; (L.C.); (A.A.); (P.K.)
- Department of Biological Sciences, Faculty of Science, Alfaisaliah campus, University of Jeddah, Jeddah 23442, Saudi Arabia
| | - Joanna M. Gould
- Clinical Neurosciences and Psychiatry, Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton SO16 6YD, UK;
| | - Pooja Khurana
- Biological Sciences, Southampton General Hospital, University of Southampton, Southampton SO16 6YD, UK; (L.C.); (A.A.); (P.K.)
- Institute for Biogenesis Research, Research Corporation of the University of Hawaii, Manoa, Honolulu, HI 96822, USA
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Takashima M, Tanaka W, Matsuyama H, Tajiri H, Sakakibara H. Maternal Quercetin Consumption during Pregnancy May Help Regulate Total Cholesterol/HDL-Cholesterol Ratio without Effect on Cholesterol Levels in Male Progeny Consuming High-Fat Diet. Nutrients 2021; 13:1242. [PMID: 33918820 PMCID: PMC8069367 DOI: 10.3390/nu13041242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/02/2021] [Accepted: 04/06/2021] [Indexed: 01/14/2023] Open
Abstract
Quercetin has been shown to have anti-obesity effects, but it is unknown whether these effects can be transmitted from mothers to their progeny. In this study, we investigated whether maternal quercetin consumption during pregnancy has a protective effect on high-fat diet-induced hyper lipid levels and overweight in progeny. Female mice consumed a control diet or a diet containing 1.0% quercetin during breeding. The male progeny were then divided into four groups that were (1) sacrificed at postnatal day 3; (2) born to dams fed the control diet and also fed the control diet (C-C), (3) born to dams fed the control diet and then fed a 30% high-fat diet (C-HF), or (4) born to dams fed the Q-diet and then fed the HF diet (Q-HF). Maternal consumption of quercetin did not affect body weight or blood lipid parameters in either dams or neonates at postnatal day 3. After 13 weeks, the Q-HF group exhibited greater body and liver weights, and higher blood cholesterol levels than the C-HF group. However, the total cholesterol/ high density lipoprotein (HDL)-cholesterol ratios in the Q-HF and C-C groups remained similar. In conclusion, maternal quercetin consumption does not appear to protect the next generation from high-fat diet-induced hyper cholesterol level in the blood and liver, and consequently overweight, but may help regulate the total cholesterol/HDL-cholesterol ratio.
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Affiliation(s)
| | | | | | | | - Hiroyuki Sakakibara
- Graduate School of Agriculture, University of Miyazaki, 1-1 Gakuen-kibanadai Nishi, Miyazaki 889-2192, Japan; (M.T.); (W.T.); (H.M.); (H.T.)
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