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Colopi A, Guida E, Cacciotti S, Fuda S, Lampitto M, Onorato A, Zucchi A, Balistreri CR, Grimaldi P, Barchi M. Dietary Exposure to Pesticide and Veterinary Drug Residues and Their Effects on Human Fertility and Embryo Development: A Global Overview. Int J Mol Sci 2024; 25:9116. [PMID: 39201802 PMCID: PMC11355024 DOI: 10.3390/ijms25169116] [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: 06/28/2024] [Revised: 08/14/2024] [Accepted: 08/20/2024] [Indexed: 09/03/2024] Open
Abstract
Drug residues that contaminate food and water represent a serious concern for human health. The major concerns regard the possible irrational use of these contaminants, since this might increase the amplitude of exposure. Multiple sources contribute to the overall exposure to contaminants, including agriculture, domestic use, personal, public and veterinary healthcare, increasing the possible origin of contamination. In this review, we focus on crop pesticides and veterinary drug residues because of their extensive use in modern agriculture and farming, which ensures food production and security for the ever-growing population around the world. We discuss crop pesticides and veterinary drug residues with respect to their worldwide distribution and impacts, with special attention on their harmful effects on human reproduction and embryo development, as well as their link to epigenetic alterations, leading to intergenerational and transgenerational diseases. Among the contaminants, the most commonly implicated in causing such disorders are organophosphates, glyphosate and antibiotics, with tetracyclines being the most frequently reported. This review highlights the importance of finding new management strategies for pesticides and veterinary drugs. Moreover, due to the still limited knowledge on inter- and transgenerational effects of these contaminants, we underlie the need to strengthen research in this field, so as to better clarify the specific effects of each contaminant and their long-term impact.
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Affiliation(s)
- Ambra Colopi
- Department of Biomedicine and Prevention, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Rome, Italy; (A.C.); (E.G.); (S.C.); (S.F.); (M.L.); (A.O.); (A.Z.); (P.G.)
| | - Eugenia Guida
- Department of Biomedicine and Prevention, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Rome, Italy; (A.C.); (E.G.); (S.C.); (S.F.); (M.L.); (A.O.); (A.Z.); (P.G.)
| | - Silvia Cacciotti
- Department of Biomedicine and Prevention, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Rome, Italy; (A.C.); (E.G.); (S.C.); (S.F.); (M.L.); (A.O.); (A.Z.); (P.G.)
| | - Serena Fuda
- Department of Biomedicine and Prevention, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Rome, Italy; (A.C.); (E.G.); (S.C.); (S.F.); (M.L.); (A.O.); (A.Z.); (P.G.)
| | - Matteo Lampitto
- Department of Biomedicine and Prevention, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Rome, Italy; (A.C.); (E.G.); (S.C.); (S.F.); (M.L.); (A.O.); (A.Z.); (P.G.)
| | - Angelo Onorato
- Department of Biomedicine and Prevention, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Rome, Italy; (A.C.); (E.G.); (S.C.); (S.F.); (M.L.); (A.O.); (A.Z.); (P.G.)
| | - Alice Zucchi
- Department of Biomedicine and Prevention, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Rome, Italy; (A.C.); (E.G.); (S.C.); (S.F.); (M.L.); (A.O.); (A.Z.); (P.G.)
| | - Carmela Rita Balistreri
- Department of Biomedicine, Neuroscience and Advanced Diagnostics (Bi.N.D.), University of Palermo, 90134 Palermo, Italy;
| | - Paola Grimaldi
- Department of Biomedicine and Prevention, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Rome, Italy; (A.C.); (E.G.); (S.C.); (S.F.); (M.L.); (A.O.); (A.Z.); (P.G.)
| | - Marco Barchi
- Department of Biomedicine and Prevention, Faculty of Medicine and Surgery, University of Rome Tor Vergata, 00133 Rome, Italy; (A.C.); (E.G.); (S.C.); (S.F.); (M.L.); (A.O.); (A.Z.); (P.G.)
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Matheson R, Sexton CL, Wise CF, O'Brien J, Keyser AJ, Kauffman M, Dunbar MD, Stapleton HM, Ruple A. Silicone tags as an effective method of monitoring environmental contaminant exposures in a geographically diverse sample of dogs from the Dog Aging Project. Front Vet Sci 2024; 11:1394061. [PMID: 39220770 PMCID: PMC11363705 DOI: 10.3389/fvets.2024.1394061] [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: 02/29/2024] [Accepted: 05/08/2024] [Indexed: 09/04/2024] Open
Abstract
Introduction Companion animals offer a unique opportunity to investigate risk factors and exposures in our shared environment. Passive sampling techniques have proven effective in capturing environmental exposures in dogs and humans. Methods In a pilot study, we deployed silicone monitoring devices (tags) on the collars of a sample of 15 dogs from the Dog Aging Project Pack cohort for a period of 120 h (5 days). We extracted and analyzed the tags via gas chromatography-mass spectrometry for 119 chemical compounds in and around participants' homes. Results Analytes belonging to the following chemical classes were detected: brominated flame retardants (BFRs), organophosphate esters (OPEs), polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), pesticides, phthalates, and personal care products. The types and amounts of analytes detected varied substantially among participants. Discussion Data from this pilot study indicate that silicone dog tags are an effective means to detect and measure chemical exposure in and around pet dogs' households. Having created a sound methodological infrastructure, we will deploy tags to a geographically diverse and larger sample size of Dog Aging Project participants with a goal of further assessing geographic variation in exposures.
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Affiliation(s)
- Rylee Matheson
- Population Health Sciences Department, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, United States
| | - Courtney L Sexton
- Population Health Sciences Department, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, United States
| | - Catherine F Wise
- Nicholas School of the Environment, Duke University, Durham, NC, United States
| | - Janice O'Brien
- Population Health Sciences Department, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, United States
| | - Amber J Keyser
- Center for Studies in Demography and Ecology, University of Washington, Seattle, WA, United States
| | - Mandy Kauffman
- Center for Studies in Demography and Ecology, University of Washington, Seattle, WA, United States
| | - Matthew D Dunbar
- Center for Studies in Demography and Ecology, University of Washington, Seattle, WA, United States
| | - Heather M Stapleton
- Nicholas School of the Environment, Duke University, Durham, NC, United States
| | - Audrey Ruple
- Population Health Sciences Department, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA, United States
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Mavaie P, Holder L, Skinner M. Identifying unique exposure-specific transgenerational differentially DNA methylated region epimutations in the genome using hybrid deep learning prediction models. ENVIRONMENTAL EPIGENETICS 2023; 9:dvad007. [PMID: 38130880 PMCID: PMC10735314 DOI: 10.1093/eep/dvad007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/04/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023]
Abstract
Exposure to environmental toxicants can lead to epimutations in the genome and an increase in differential DNA methylated regions (DMRs) that have been linked to increased susceptibility to various diseases. However, the unique effect of particular toxicants on the genome in terms of leading to unique DMRs for the toxicants has been less studied. One hurdle to such studies is the low number of observed DMRs per toxicants. To address this hurdle, a previously validated hybrid deep-learning cross-exposure prediction model is trained per exposure and used to predict exposure-specific DMRs in the genome. Given these predicted exposure-specific DMRs, a set of unique DMRs per exposure can be identified. Analysis of these unique DMRs through visualization, DNA sequence motif matching, and gene association reveals known and unknown links between individual exposures and their unique effects on the genome. The results indicate the potential ability to define exposure-specific epigenetic markers in the genome and the potential relative impact of different exposures. Therefore, a computational approach to predict exposure-specific transgenerational epimutations was developed, which supported the exposure specificity of ancestral toxicant actions and provided epigenome information on the DMR sites predicted.
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Affiliation(s)
- Pegah Mavaie
- School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA 99164-2752, USA
| | - Lawrence Holder
- School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA 99164-2752, USA
| | - Michael Skinner
- School of Biological Sciences, Washington State University, Pullman, WA 99164-4236, USA
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4
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Ataei M, Abdollahi M. A systematic review of mechanistic studies on the relationship between pesticide exposure and cancer induction. Toxicol Appl Pharmacol 2022; 456:116280. [DOI: 10.1016/j.taap.2022.116280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 10/05/2022] [Accepted: 10/09/2022] [Indexed: 01/01/2023]
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5
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Yan S, Wang J, Xu J, Jiang W, Xiong M, Cao Z, Wang Y, Wang Z, Zhang T, Wang Z, Sun C, Hou S, Wei W. Exposure to N,N-diethyl- m-toluamide and cardiovascular diseases in adults. Front Public Health 2022; 10:922005. [PMID: 36267998 PMCID: PMC9576625 DOI: 10.3389/fpubh.2022.922005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 09/09/2022] [Indexed: 01/22/2023] Open
Abstract
Although growing evidence suggests that N,N-diethyl-m-toluamide (DEET) has adverse effects on public health, the relationship of DEET with cardiovascular disease (CVD) is still largely unknown. The purpose of this study was, therefore, to evaluate the association between DEET exposure and total and specific CVD among the US adults. In this cross-sectional study, a total of 5,972 participants were selected from the National Health and Nutrition Examination Survey (NHANES) 2007-2014. CVD was defined as a combination of congestive heart failure (CHF), coronary heart disease (CHD), angina, heart attack, or stroke. Logistic regression models were used to evaluate the association between DEET metabolites and the risks of total and specific CVD. Compared to the lowest quartile, 3-(diethylcarbamoyl) benzoic acid (DCBA) in the highest quartile was associated with the increased risks of CVD (odds ratio [OR]: 1.32, 95% CI: 1.03-1.68, P for trend = 0.025) and CHD (OR: 1.57, 95% CI: 1.10-2.25, P for trend = 0.017), after adjustment for potential covariates. Nevertheless, exposure to DCBA was not significantly associated with heart attack, CHF, angina, and stroke. Further studies are required to confirm these findings and identify the underlying mechanisms.
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Affiliation(s)
- Shiwei Yan
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China
| | - Jianing Wang
- Department of Cerebrovascular Disease, The Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai, China
| | - Jiaxu Xu
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China
| | - Wenbo Jiang
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China
| | - Menglin Xiong
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China
| | - Ziteng Cao
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China
| | - Yu Wang
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China
| | - Ziqi Wang
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China
| | - Tongfang Zhang
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China
| | - Zheng Wang
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China
| | - Changhao Sun
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China,*Correspondence: Wei Wei
| | - Shaoying Hou
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China,Shaoying Hou
| | - Wei Wei
- Department of Nutrition and Food Hygiene, College of Public Health, Harbin Medical University, Harbin, China,Changhao Sun
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Mosquito Repellents: Efficacy Tests of Commercial Skin-Applied Products in China. Molecules 2022; 27:molecules27175534. [PMID: 36080301 PMCID: PMC9458079 DOI: 10.3390/molecules27175534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/17/2022] [Accepted: 08/25/2022] [Indexed: 11/24/2022] Open
Abstract
As a prevention tool for mosquito-borne diseases, mosquito repellents have received substantial attention. To make a convincing recommendation for repellent products to Chinese consumers, we compared the protection time (landing time and probing time) of the 26 best-selling commercial repellents in the Chinese market in a controlled laboratory environment. The data were analyzed by one-way ANOVA. Meanwhile, prices and favorable rates of repellents are also taken into consideration. In our study, N, N-diethyl-m-toluamide (DEET)-based products provided the longest protection time (0.5–3.88 h landing time and/or 1–5.63 h probing time) and lower prices (13.9–21.9 yuan) than other components (ethyl butylacetylaminopropionate (IR3535), picaridin, and botanical. Among the 26 selected products, only 17 repellents showed repellency, and the best repellent was Green Jungle (15% DEET), with a mean (±SD) landing and/or probing time of 3.88 ± 1.65 h and/or 5.63 ± 0.36 h. For botanicals, only ICE King, OMNIbaby, and Ren He showed a little repellency. Autan (20% picaridin) performed best in the picaridin group. Run Ben (7% IR3535) stood out from the IR3535 group. In conclusion, DEET repellent is highly recommended to consumers. The combination of botanicals and synthesized chemicals is a new prospect for eco-friendly repellents.
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Priyanka PP, Ravula AR, Yenugu S. A mixture of pyrethroids induces reduced fecundity and increased testicular genotoxicity in rats. Andrologia 2022; 54:e14567. [DOI: 10.1111/and.14567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 07/07/2022] [Accepted: 08/09/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
| | - Anandha Rao Ravula
- Department of Animal Biology School of Life Sciences, University of Hyderabad Hyderabad India
| | - Suresh Yenugu
- Department of Animal Biology School of Life Sciences, University of Hyderabad Hyderabad India
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8
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Ravula AR, Yenugu S. Effect of a mixture of pyrethroids at doses similar to human exposure through food in the Indian context. J Biochem Mol Toxicol 2022; 36:e23132. [PMID: 35678313 DOI: 10.1002/jbt.23132] [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: 11/07/2021] [Revised: 03/10/2022] [Accepted: 05/30/2022] [Indexed: 11/11/2022]
Abstract
Residual amounts of pyrethroids were detected in rice and vegetables of the Indian market. Thus, consumers are exposed to a mixture of pyrethroids on a daily basis through food. Though a large number of studies reported the toxic effects of pyrethroids, there are no reports that used doses equivalent to human consumption. In this study, male Wistar rats were exposed daily to a mixture of pyrethroids for 1-15 months which is equivalent to the amount present in rice and vegetables consumed by an average Indian each day. The oxidant-antioxidant status (lipid peroxidation, nitric oxide; activities of catalase, glutathione peroxidase, glutathione S transferase, and superoxide dismutase) and anatomical changes in the general organs (liver, lung, and kidney) and male reproductive tract tissues (caput, cauda, testis, and prostate) were evaluated. Further, liver and kidney function tests, lipid profile, and complete blood picture were analyzed. Increased oxidative stress, perturbations in the antioxidant enzyme activities, and damage to the anatomical architecture were observed. Disturbances in the liver function and lipid profile were significant. Results of our study demonstrate that exposure to a mixture of pyrethroids at a dose that is equivalent to human consumption can cause systemic and reproductive toxicity, which may ultimately result in the development of lifestyle diseases. This first line of evidence will fuel further studies to determine the impact of food-based pyrethroid exposure on the long-term health of humans and to envisage policies to reduce pesticide content in food products.
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Affiliation(s)
- Anandha R Ravula
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, India
| | - Suresh Yenugu
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, India
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9
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Rodríguez-Aguilar BA, Martínez-Rivera LM, Muñiz-Valencia R, Mercado-Silva N, Iñiguez-Dávalos LI, Peregrina-Lucano AA. Study of feces of neotropical otters (Lontra longicaudis) in the Ayuquila-Armería basin, Mexico as biomonitors of the spatiotemporal distribution of pesticides. ENVIRONMENTAL MONITORING AND ASSESSMENT 2022; 194:474. [PMID: 35657507 DOI: 10.1007/s10661-022-09952-3] [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: 09/02/2021] [Accepted: 03/12/2022] [Indexed: 06/15/2023]
Abstract
The pesticides used have contributed to increasing food production; it has also caused them to be found in most ecosystems and have negative effects on biota. The neotropical otter (Lontra longicaudis) is vulnerable to pesticide accumulation and is characterized by being elusive, so it is necessary to address the use of indirect techniques that evaluate its populations' state in an efficient, logistically simple, and non-invasive way. This study aimed to determine the concentration of 20 pesticides in neotropical otter feces in the Ayuquila-Armería basin and to describe the spatiotemporal variation of these pesticides. The presence of 11 pesticides was determined. Imazalil, picloram, and malathion the pesticides with the highest concentrations; emamectin, λ-cyhalothrin, methomyl, and picloram were present in all samples. Emamectin was the only pesticide that presented significant differences concerning the temporality of the samplings, presenting higher concentrations in the wet season. Molinate concentrations showed significant differences concerning the location of the sampling sections in the basin; the lower part of the basin presented higher concentrations. The distribution of the populations of L. longicaudis in the Ayuquila-Armería basin does not respond to the degree of contamination by pesticides in surface waters or to the proximity to agricultural activities, and this in places with evident chemical and organic contamination and human presence. The use of otter feces for pesticide monitoring is an accepted non-invasive method to assess the degree of exposure and can be used to determine sites with pollution problems.
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Affiliation(s)
- Brian Arturo Rodríguez-Aguilar
- Departamento de Ecología y Recursos Naturales, Centro Universitario de la Costa Sur, Universidad de Guadalajara, Independencia Nacional 151, 48900, Autlán de Navarro, Jalisco, Mexico
| | - Luis Manuel Martínez-Rivera
- Departamento de Ecología y Recursos Naturales, Centro Universitario de la Costa Sur, Universidad de Guadalajara, Independencia Nacional 151, 48900, Autlán de Navarro, Jalisco, Mexico.
| | - Roberto Muñiz-Valencia
- Centro de Investigación en Recursos Naturales y Sustentabilidad, Universidad Bernardo O'Higgins, Fabrica 1990, Segundo Piso, Santiago, Chile
| | - Norman Mercado-Silva
- Centro de Investigación en Biodiversidad y Conservación, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, 62209, Cuernavaca, Morelos, Mexico
| | - Luis Ignacio Iñiguez-Dávalos
- Departamento de Ecología y Recursos Naturales, Centro Universitario de la Costa Sur, Universidad de Guadalajara, Independencia Nacional 151, 48900, Autlán de Navarro, Jalisco, Mexico
| | - Alejandro Aarón Peregrina-Lucano
- Departamento de Farmacobiología, Centro Universitario de Ciencias Exactas e Ingenería, Universidad de Guadalajara, Blvd. Marcelino García Barragán 1421, Módulo E, 44430, Guadalajara, Jalisco, México
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Beck D, Nilsson EE, Ben Maamar M, Skinner MK. Environmental induced transgenerational inheritance impacts systems epigenetics in disease etiology. Sci Rep 2022; 12:5452. [PMID: 35440735 PMCID: PMC9018793 DOI: 10.1038/s41598-022-09336-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 03/17/2022] [Indexed: 12/12/2022] Open
Abstract
Environmental toxicants have been shown to promote the epigenetic transgenerational inheritance of disease through exposure specific epigenetic alterations in the germline. The current study examines the actions of hydrocarbon jet fuel, dioxin, pesticides (permethrin and methoxychlor), plastics, and herbicides (glyphosate and atrazine) in the promotion of transgenerational disease in the great grand-offspring rats that correlates with specific disease associated differential DNA methylation regions (DMRs). The transgenerational disease observed was similar for all exposures and includes pathologies of the kidney, prostate, and testis, pubertal abnormalities, and obesity. The disease specific DMRs in sperm were exposure specific for each pathology with negligible overlap. Therefore, for each disease the DMRs and associated genes were distinct for each exposure generational lineage. Observations suggest a large number of DMRs and associated genes are involved in a specific pathology, and various environmental exposures influence unique subsets of DMRs and genes to promote the transgenerational developmental origins of disease susceptibility later in life. A novel multiscale systems biology basis of disease etiology is proposed involving an integration of environmental epigenetics, genetics and generational toxicology.
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Affiliation(s)
- Daniel Beck
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Eric E Nilsson
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Millissia Ben Maamar
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Michael K Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA.
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11
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Ravula AR, Yenugu S. Transgenerational effects on the fecundity and sperm proteome in rats exposed to a mixture of pyrethroids at doses similar to human consumption. CHEMOSPHERE 2022; 290:133242. [PMID: 34896426 DOI: 10.1016/j.chemosphere.2021.133242] [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: 11/11/2021] [Revised: 12/08/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
Pyrethroid based pesticide usage for crop protection resulted in percolation of these compounds into the food chain. Toxicological studies that reflect exposure to pyrethroids through food in the human settings are rare. We conducted animal experimentations using a mixture of pyrethroids that is equivalent to the amount consumed by average individual through rice and vegetables in the Indian context. Male rats treated with a mixture of pyrethroids for 1-12 months displayed decreased transgenerational fecundity, sperm count, activities of 3β- and 17β-HSD and perturbed hormonal profile. At the transcriptome level, the expression of genes involved in spermatogenesis, steroidogenesis, germ cell epigenetic modulators and germ cell apoptosis were altered in the testis. In the sperm lysates of control rats, 506 proteins identified by mass spectrometry. The differential expression of these proteins (treated/control ratio) in the pyrethroid exposed rats was analyzed. Among the 506 proteins, 153 had a ratio of 0; 41 had a ratio ranging from >0 to <0.5; and 10 had a ratio >2.0. Interestingly, the differential expression was transgenerational. 26 proteins that were differentially expressed in the sperm of F0 treated rats continued to remain the same in the F1, F2 and F3 generations, while the differential expression was maintained up to F2 and F1 generations for 46 and 2 proteins respectively. Some of the proteins that continued to be differentially expressed in the later generations are reported to have critical roles in male reproduction. These results indicate that the reduced fecundity observed in the later generations could be due to the continued differential expression that was initiated by pyrethroid treatment in the F0 rats. Results of our study, for the first time, provide evidence that long-term exposure to pyrethroids affects transgenerational fecundity manifested by changes in sperm proteome.
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Affiliation(s)
- Anandha Rao Ravula
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India
| | - Suresh Yenugu
- Department of Animal Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046, India.
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12
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Robaire B, Delbes G, Head JA, Marlatt VL, Martyniuk CJ, Reynaud S, Trudeau VL, Mennigen JA. A cross-species comparative approach to assessing multi- and transgenerational effects of endocrine disrupting chemicals. ENVIRONMENTAL RESEARCH 2022; 204:112063. [PMID: 34562476 DOI: 10.1016/j.envres.2021.112063] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 06/13/2023]
Abstract
A wide range of chemicals have been identified as endocrine disrupting chemicals (EDCs) in vertebrate species. Most studies of EDCs have focused on exposure of both male and female adults to these chemicals; however, there is clear evidence that EDCs have dramatic effects when mature or developing gametes are exposed, and consequently are associated with in multigenerational and transgenerational effects. Several publications have reviewed such actions of EDCs in subgroups of species, e.g., fish or rodents. In this review, we take a holistic approach synthesizing knowledge of the effects of EDCs across vertebrate species, including fish, anurans, birds, and mammals, and discuss the potential mechanism(s) mediating such multi- and transgenerational effects. We also propose a series of recommendations aimed at moving the field forward in a structured and coherent manner.
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Affiliation(s)
- Bernard Robaire
- Department of Pharmacology and Therapeutics and of Obstetrics and Gynecology, McGill University, Montreal, Canada.
| | - Geraldine Delbes
- Centre Armand Frappier Santé Biotechnologie, Institut National de La Recherche Scientifique (INRS), Laval, QC, Canada
| | - Jessica A Head
- Department of Natural Resource Sciences, Faculty of Agricultural and Environmental Sciences, McGill University, Montreal, Canada
| | - Vicki L Marlatt
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Christopher J Martyniuk
- Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Stéphane Reynaud
- Univ. Grenoble-Alpes, Université. Savoie Mont Blanc, CNRS, LECA, Grenoble, 38000, France
| | - Vance L Trudeau
- Department of Biology, University of Ottawa, Ottawa, ON, Canada
| | - Jan A Mennigen
- Department of Biology, University of Ottawa, Ottawa, ON, Canada
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Mavaie P, Holder L, Beck D, Skinner MK. Predicting environmentally responsive transgenerational differential DNA methylated regions (epimutations) in the genome using a hybrid deep-machine learning approach. BMC Bioinformatics 2021; 22:575. [PMID: 34847877 PMCID: PMC8630850 DOI: 10.1186/s12859-021-04491-z] [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: 08/23/2021] [Accepted: 11/18/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Deep learning is an active bioinformatics artificial intelligence field that is useful in solving many biological problems, including predicting altered epigenetics such as DNA methylation regions. Deep learning (DL) can learn an informative representation that addresses the need for defining relevant features. However, deep learning models are computationally expensive, and they require large training datasets to achieve good classification performance. RESULTS One approach to addressing these challenges is to use a less complex deep learning network for feature selection and Machine Learning (ML) for classification. In the current study, we introduce a hybrid DL-ML approach that uses a deep neural network for extracting molecular features and a non-DL classifier to predict environmentally responsive transgenerational differential DNA methylated regions (DMRs), termed epimutations, based on the extracted DL-based features. Various environmental toxicant induced epigenetic transgenerational inheritance sperm epimutations were used to train the model on the rat genome DNA sequence and use the model to predict transgenerational DMRs (epimutations) across the entire genome. CONCLUSION The approach was also used to predict potential DMRs in the human genome. Experimental results show that the hybrid DL-ML approach outperforms deep learning and traditional machine learning methods.
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Affiliation(s)
- Pegah Mavaie
- School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA, 99164-2752, USA
| | - Lawrence Holder
- School of Electrical Engineering and Computer Science, Washington State University, Pullman, WA, 99164-2752, USA.
| | - Daniel Beck
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA
| | - Michael K Skinner
- Center for Reproductive Biology, School of Biological Sciences, Washington State University, Pullman, WA, 99164-4236, USA.
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