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Brulport A, Le Corre L, Maquart G, Barbet V, Dastugue A, Severin I, Vaiman D, Chagnon MC. Multigenerational study of the obesogen effects of bisphenol S after a perinatal exposure in C57BL6/J mice fed a high fat diet. Environ Pollut 2021; 270:116243. [PMID: 33326921 DOI: 10.1016/j.envpol.2020.116243] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/13/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND Bisphenol S is an endocrine disruptor exhibiting metabolic disturbances, especially following perinatal exposures. To date, no data are available on the obesogen effects of BPS in a mutligenerational issue. OBJECTIVES We investigated obesogen effects of BPS in a multigenerational study by focusing on body weight, adipose tissue and plasma parameters in male and female mice. METHODS Pregnant C57BL6/J mice were exposed to BPS (1.5 μg/kg bw/day ie a human equivalent dose of 0.12 μg/kg bw/day) by drinking water from gestational day 0 to post natal day 21. All offsprings were fed with a high fat diet during 15 weeks. Body weight was monitored weekly and fat mass was measured before euthanasia. At euthanasia, blood glucose, insuline, triglyceride, cholesterol and no esterified fatty acid plasma levels were determined and gene expressions in visceral adipose tissue were assessed. F1 males and females were mated to obtain the F2 generation. Likewise, the F2 mice were cross-bred to obtain F3. The same analyses were performed. RESULTS In F1 BPS induced an overweight in male mice associated to lipolysis gene expressions upregulation. In F1 females, dyslipidemia was observed. In F2, BPS exposure was associated to an increase in body weight, fat and VAT masses in males and females. Several plasma parameters were increased but with a sex related pattern (blood glucose, triglycerides and cholesterol in males and NEFA in females). We observed a down-regulation in mRNA expression of gene involved in lipogenesis and in lipolysis for females but only in the lipogenesis for males. In F3, a decrease in VAT mass and an upregulation of lipogenesis gene expression occurred only in females. CONCLUSIONS BPS perinatal exposure induced sex-dependent obesogen multigenerational effects, the F2 generation being the most impacted. Transgenerational disturbances persisted only in females.
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Affiliation(s)
- Axelle Brulport
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSupdijon, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
| | - Ludovic Le Corre
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSupdijon, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France.
| | - Guillaume Maquart
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSupdijon, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
| | - Virginie Barbet
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSupdijon, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
| | - Aurélie Dastugue
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSupdijon, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
| | - Isabelle Severin
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSupdijon, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
| | - Daniel Vaiman
- From Gametes to Birth Team (FGTB), INSERM, U1016, Institut Cochin, F-75014, Paris, France; CNRS UMR8104, F-75014, Paris, France; Université Sorbonne Paris Cité, F-75014, Paris, France
| | - Marie-Christine Chagnon
- Université de Bourgogne Franche-Comté, LNC UMR1231, F-21000, Dijon, France; AgroSupdijon, LNC UMR1231, F-21000, Dijon, France; Nutrition Physiology and Toxicology Team (NUTox), INSERM, LNC UMR1231, F-21000, Dijon, France
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Ghasemnejad-Berenji M, Nemati M, Pourheydar B, Gholizadeh S, Karimipour M, Mohebbi I, Jafari A. Neurological effects of long-term exposure to low doses of pesticides mixtures in male rats: Biochemical, histological, and neurobehavioral evaluations. Chemosphere 2021; 264:128464. [PMID: 33049502 DOI: 10.1016/j.chemosphere.2020.128464] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2020] [Revised: 09/15/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Abstract
Humans are usually exposed to multiple pesticides in real life, but little is known as yet about the safety of low-dose pesticides mixtures. This study was conducted to evaluate the effects of long-term exposure to very low doses of pesticide mixtures on biochemical, histological, and neurobehavioral alterations in the rat model. For 90 days, four groups of male Wistar rats were given a mixture of five pesticides (in drinking water) in doses of 0, 0.25, 1 and 5 times the legally permitted levels (mg/kg body weight/day). After three-month exposure, the neurobehavioral effects of pesticide mixtures were evaluated by the Morris water maze, elevated plus maze and the open field tests. Then the biochemical and histopathological alterations in the hippocampus of studied animals were evaluated. Results showed that long-term exposure to a combination of five pesticides affected the nervous system in dose-dependent manner. As expected, nearly all of the parameters determined in this study were adversely changed in the high dose group. Exposure to medium dose (permitted level of pesticides mixture) was also able to induce oxidative stress and impaired memory and learning ability, although not all parameters were significantly changed in this group. It means that pesticides may behave differently when mixed. Interestingly, the administration of low doses of these chemicals induced an adaptive response by stimulating the redox system. In conclusion, it seems that the prolonged exposure to pesticide mixtures may cause adverse neurobehavioral effects, even at permitted levels.
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Affiliation(s)
| | - Mohadeseh Nemati
- Department of Biochemistry, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Bagher Pourheydar
- Department of Anatomical Sciences and Neurophysiology Research Center, School of Medicine, Iran
| | - Saber Gholizadeh
- Department of Medical Entomology and Cellular and Molecular Research Center, School of Health, Urmia University of Medical Sciences, Iran
| | - Mojtaba Karimipour
- Department of Anatomy and Histology, School of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Iraj Mohebbi
- Social Determinants of Health Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Abbas Jafari
- Department of Toxicology and Neurophysiology Research Center, Faculty of Health, Urmia University of Medical Sciences, Urmia, Iran.
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Docea AO, Goumenou M, Calina D, Arsene AL, Dragoi CM, Gofita E, Pisoschi CG, Zlatian O, Stivaktakis PD, Nikolouzakis TK, Kalogeraki A, Izotov BN, Galateanu B, Hudita A, Calabrese EJ, Tsatsakis A. Adverse and hormetic effects in rats exposed for 12 months to low dose mixture of 13 chemicals: RLRS part III. Toxicol Lett 2019; 310:70-91. [PMID: 30999039 DOI: 10.1016/j.toxlet.2019.04.005] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/27/2019] [Accepted: 04/05/2019] [Indexed: 12/31/2022]
Abstract
The aim of the current study was to evaluate the effects of a mixture of thirteen common chemicals on rats, after a one-year exposure to doses around the acceptable daily intake (ADIs), using blood and urinary tests. The influence of low doses of the mixture on weight gain, water consumption, feed consumption and feed efficiency, biochemistry parameters, haematological parameters, blood lymphocytes subsets, serum inflammation profile and urine parameters was evaluated. Our mixture caused a moderate monotonic increase of the males' appetite and a non-monotonic increase of anabolism and a monotonic increase of appetite for the females. Regarding biochemical parameters, the exposure to the test mixture caused non-monotonic increases of AST and ALT, a decrease of PChE in males and plausibly a monotonic biliary obstruction in both sexes. Monocytes significantly increased in low dose groups of both sexes. A significant decrease of all the lymphocytes subclasses and an increased expression of TNF-α protein associated with an increased expression of IFN-γ protein observed in various groups. It became apparent that after twelve months of exposure very low doses of the tested mixture had both non-monotonic and monotonic harmful effects on different levels on rats.
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Huang SSY, Noble S, Godoy R, Ekker M, Chan HM. Delayed effects of methylmercury on the mitochondria of dopaminergic neurons and developmental toxicity in zebrafish larvae (Danio rerio). Aquat Toxicol 2016; 175:73-80. [PMID: 26994370 DOI: 10.1016/j.aquatox.2016.03.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/03/2016] [Accepted: 03/04/2016] [Indexed: 06/05/2023]
Abstract
Methylmercury (MeHg) is a known neurotoxicant affecting the central nervous system but effects on dopaminergic (DA) neurons are not well understood. Wild-type zebrafish (Danio rerio) and two transgenic lines: Tg(dat:eGFP) expressing enhanced green fluorescent protein (eGFP) in DA neuron clusters and Tg(dat:tom20 MLS-mCherry) expressing red fluorescence (mCherry) targeted to mitochondria of DA neurons were used to evaluate the effects of micromolar MeHg exposure on DA neuron and whole animal motor function during early development. Three-day-old larvae were exposed to micromolar concentrations of MeHg (0.03, 0.06, and 0.3μM) in system water. Exposure to 0.3μM MeHg caused mortality and significant morphological abnormalities including edema, curvature of the spine, and hemorrhages in zebrafish larvae after a 48h exposure period. At 0.06μM MeHg, the appearance of morphological abnormalities was delayed for 72h and far less severe, whereas 0.03μM MeHg did not cause any morphological defects or mortalities. A delayed but significant reduction in locomotor ability and mCherry fluorescence in specific brain regions in the 0.06μM MeHg exposed larvae suggests that DA neuron function rather than neuron numbers was compromised. Double immunolabeling with tyrosine hydroxylase and pan neural staining showed no effect of MeHg exposure. We have established Tg(dat:tom20 MLS-mCherry) zebrafish larvae as a model which can be used to assess MeHg neurotoxicity and that exposure to low dose MeHg (0.06μM) during development may predispose DA neurons to impairment caused by changes in mitochondrial dynamics.
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Affiliation(s)
- Susie S Y Huang
- Centre for Advanced Research in Environmental Genomics, University of Ottawa, Ontario K1N 6N5, Canada
| | - Sandra Noble
- Centre for Advanced Research in Environmental Genomics, University of Ottawa, Ontario K1N 6N5, Canada
| | - Rafael Godoy
- Centre for Advanced Research in Environmental Genomics, University of Ottawa, Ontario K1N 6N5, Canada
| | - Marc Ekker
- Centre for Advanced Research in Environmental Genomics, University of Ottawa, Ontario K1N 6N5, Canada
| | - Hing Man Chan
- Centre for Advanced Research in Environmental Genomics, University of Ottawa, Ontario K1N 6N5, Canada.
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