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Rajak P, Roy S, Podder S, Dutta M, Sarkar S, Ganguly A, Mandi M, Dutta A, Nanda S, Khatun S. Synergistic action of organophosphates and COVID-19 on inflammation, oxidative stress, and renin-angiotensin system can amplify the risk of cardiovascular maladies. Toxicol Appl Pharmacol 2022; 456:116267. [PMID: 36240863 PMCID: PMC9554205 DOI: 10.1016/j.taap.2022.116267] [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: 08/09/2022] [Revised: 09/26/2022] [Accepted: 10/04/2022] [Indexed: 11/24/2022]
Abstract
Organophosphates (OPs) are ubiquitous environmental contaminants, widely used as pesticides in agricultural fields. In addition, they serve as flame-retardants, plasticizers, antifoaming or antiwear agents in lacquers, hydraulic fluids, and floor polishing agents. Therefore, world-wide and massive application of these compounds have increased the risk of unintentional exposure to non-targets including the human beings. OPs are neurotoxic agents as they inhibit the activity of acetylcholinesterase at synaptic cleft. Moreover, they can fuel cardiovascular issues in the form of myocardities, cardiac oedema, arrhythmia, systolic malfunction, infarction, and altered electrophysiology. Such pathological outcomes might increase the severity of cardiovascular diseases which are the leading cause of mortality in the developing world. Coronavirus disease-19 (COVID-19) is the ongoing global health emergency caused by SARS-CoV-2 infection. Similar to OPs, SARS-CoV-2 disrupts cytokine homeostasis, redox-balance, and angiotensin-II/AT1R axis to promote cardiovascular injuries. Therefore, during the current pandemic milieu, unintentional exposure to OPs through several environmental sources could escalate cardiac maladies in patients with COVID-19.
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Affiliation(s)
- Prem Rajak
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India,Corresponding author
| | - Sumedha Roy
- Cytogenetics Laboratory, Department of Zoology, The University of Burdwan, West Bengal, India
| | | | - Moumita Dutta
- Departments of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, USA
| | - Saurabh Sarkar
- Department of Zoology, Gushkara Mahavidyalaya; Gushkara, Purba Bardhaman, West Bengal, India
| | - Abhratanu Ganguly
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India
| | - Moutushi Mandi
- Toxicology Research Unit, Department of Zoology, The University of Burdwan, Purba Bardhaman, West Bengal, India
| | - Anik Dutta
- Post Graduate Department of Zoology, Darjeeling Govt. College, West Bengal, India
| | - Sayantani Nanda
- Department of Animal Science, Kazi Nazrul University, Asansol, West Bengal, India
| | - Salma Khatun
- Department of Zoology, Krishna Chandra College, Hetampur, West Bengal, India
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Leonel Javeres MN, Habib R, Judith N, Iqbal M, Nepovimova E, Kuca K, Batool S, Nurulain SM. Analysis of PON1 gene polymorphisms (rs662 and rs854560) and inflammatory markers in organophosphate pesticides exposed cohorts from two distinct populations. ENVIRONMENTAL RESEARCH 2020; 191:110210. [PMID: 32949615 DOI: 10.1016/j.envres.2020.110210] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 08/30/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND AND OBJECTIVES Organophosphate (OPs) anticholinesterases are one of the main groups of pesticides used in agriculture. Harmful effects of OPs on health have been attributed primarily for irreversible inhibition of acetylcholinesterase (AChE) at nerve synapse. However, studies have shown that inhibition of AChE alone cannot explain all the maladies encountered in prolonged exposure to OPs. Predisposition to population heterogeneity and irregularities in various biochemicals like paraoxonases and inflammatory biochemicals are the possible affects of OPs long term exposure that may lead to sequels of diseases and are less addressed in literature. The study was aimed to assess the cholinergic enzymes (AChE and BChE), PON1, and inflammatory markers (IL1β, IL6, TNFα, CRP, Apo AI, Apo B) and determine the toxicogenetics association of PON1 gene (rs 662 and rs 85456) to chronically OPs exposed groups from Pakistan and Cameroon. MATERIALS AND METHODS AChE, BChE and PON1 were measured by colorimetric method using spectrophotometry. Inflammatory markers were determined by Elisa assay. PCR-restriction fragment length polymorphism (PCR-RFLP) using salting out method was employed for SNP genotyping. RESULTS The results revealed the significant (p ≤ 0.05) inhibition of cholinergic enzymes PON 1 was found to be 6.91 ng/mL±1.03 and 2.84 ng/mL±1.40 (mean ± SD) in Pakistan and Cameroon groups respectively. IL6, TNFα, CRP were increased and Apo AI was less while Apo B was increased in OP exposed groups in both population groups. SNPs analysis of PON1 showed significant differences in allelic and genotype frequencies of OPs exposed and non-exposed groups. CONCLUSIONS PON1 was noticeably less in Cameroonian than Pakistani, albeit both groups have significant decrease in PON1 actity. In addition, the study concludes that OPs induce low grade inflammation, an aetiology of many diseases. Selected PON1 SNPs analysis showed a significant toxicogenetics association with OPs exposure marker enzymes. The results of this study may help in regulation of usage of OPs anticholinesterases in different populations. The study will further open new avenues in toxicogenetic and exploration of SNPs based strategies on organophosphate intoxication.
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Affiliation(s)
| | - Rabia Habib
- Department of Biosciences, COMSATS University Islamabad, Islamabad, 45550, Pakistan
| | - Ngondi Judith
- Department of Biochemistry, Yaoundé I University, Yaoundé, Cameroon
| | - Moaz Iqbal
- Department of Biosciences, COMSATS University Islamabad, Islamabad, 45550, Pakistan
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, 50003, Czech Republic
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Hradec Kralove, 50003, Czech Republic.
| | - Sajida Batool
- Department of Biosciences, COMSATS University Islamabad, Islamabad, 45550, Pakistan
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Leonel Javeres MN, Raza S, Judith N, Anwar F, Habib R, Batool S, Nurulain SM. Mixture of Organophosphates Chronic Exposure and Pancreatic Dysregulations in Two Different Population Samples. Front Public Health 2020; 8:534902. [PMID: 33194944 PMCID: PMC7655777 DOI: 10.3389/fpubh.2020.534902] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 08/20/2020] [Indexed: 12/13/2022] Open
Abstract
Organophosphates (OP) are a major agrochemical. The application of OP pesticides is expected to increase multifold in the coming decades. The etiology of diabetic diseases is attributed to multiple factors including OP pesticide exposure. The present study investigates pancreatic dysregulation with respect to exocrine enzymes and diabesity in groups of Pakistani and Cameroonian people exposed to a mixture of OP pesticides. Nine hundred and four OP exposed individuals were enrolled for this cross-sectional study after due consent and approval from an ethical review committee. Pesticides' residues were measured by GC-MS spectrometry. Cholinergic enzymes were measured by Elman's method. Serum glucose, insulin, serum amylase, lipase, and triglyceride were measured by spectrophotometry and ELISA; HOMA-IR was determined in OP exposed and non-exposed participants. Stata 15 and R 3.2.0 software were used for statistical analysis of the data. Malathion, chlorpyrifos, and parathion residues were evident in plasma samples. RBC-acetylcholinesterase was significantly depressed in OP exposed groups. In both population samples, investigated pancreatic functions were found to be statistically significantly more dysregulated than non-exposed. OP exposure indicated risk of diabetes and insulin, glycaemia, adiponectin, triglycerides, and TNF-α dysregulations. The study concludes that both OP exposed population groups exhibited a mixture of OP residues and pancreatic dysregulation, although the effect was more pronounced in the Cameroonian population. In addition, serum lipase has a positive correlation with OP exposure and diabetes and may be suggested as an alternate/additional diagnostic marker for diabesity under OP exposure. However, screening of other environmental co-factors with OP for pancreatic dysregulation is suggested.
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Affiliation(s)
| | - Saqlain Raza
- Department of Mathematics, COMSATS University Islamabad, Islamabad, Pakistan
| | - Ngondi Judith
- Department of Biochemistry, Yaoundé I University, Yaoundé, Cameroon
| | - Fozia Anwar
- Department of Health Informatic, COMSATS University Islamabad, Islamabad, Pakistan
| | - Rabia Habib
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
| | - Sajida Batool
- Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan
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Mbah Ntepe LJ, Habib R, Judith Laure N, Raza S, Nepovimova E, Kuca K, Batool S, Muhammad Nurulain S. Oxidative Stress and Analysis of Selected SNPs of ACHE (rs 2571598), BCHE (rs 3495), CAT (rs 7943316), SIRT1 (rs 10823108), GSTP1 (rs 1695), and Gene GSTM1, GSTT1 in Chronic Organophosphates Exposed Groups from Cameroon and Pakistan. Int J Mol Sci 2020; 21:ijms21176432. [PMID: 32899431 PMCID: PMC7503738 DOI: 10.3390/ijms21176432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 08/30/2020] [Accepted: 08/31/2020] [Indexed: 02/07/2023] Open
Abstract
The detrimental effects of organophosphates (OPs) on human health are thought to be of systemic, i.e., irreversible inhibition of acetylcholinesterase (AChE) at nerve synapses. However, several studies have shown that AChE inhibition alone cannot explain all the toxicological manifestations in prolonged exposure to OPs. The present study aimed to assess the status of antioxidants malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH) (reduced), catalase, and ferric reducing antioxidant power (FRAP) in chronic OP-exposed groups from Cameroon and Pakistan. Molecular analysis of genetic polymorphisms (SNPs) of glutathione transferases (GSTM1, GSTP1, GSTT1), catalase gene (CAT, rs7943316), sirtuin 1 gene (SIRT1, rs10823108), acetylcholinesterase gene (ACHE, rs2571598), and butyrylcholinesterase gene (BCHE, rs3495) were screened in the OP-exposed individuals to find the possible causative association with oxidative stress and toxicity. Cholinesterase and antioxidant activities were measured by colorimetric methods using a spectrophotometer. Salting-out method was employed for DNA extraction from blood followed by restriction fragment length polymorphism (RFLP) for molecular analysis. Cholinergic enzymes were significantly decreased in OP-exposed groups. Catalase and SOD were decreased and MDA and FRAP were increased in OP-exposed groups compared to unexposed groups in both groups. GSH was decreased only in Pakistani OPs-exposed group. Molecular analysis of ACHE, BCHE, Catalase, GSTP1, and GSTM1 SNPs revealed a tentative association with their phenotypic expression that is level of antioxidant and cholinergic enzymes. The study concludes that chronic OPs exposure induces oxidative stress which is associated with the related SNP polymorphism. The toxicogenetics of understudied SNPs were examined for the first time to our understanding. The findings may lead to a newer area of investigation on OPs induced health issues and toxicogenetics.
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Affiliation(s)
- Leonel Javeres Mbah Ntepe
- Department of Biosciences, COMSATS University Islamabad, Chak Shahzad, Islamabad 45550, Pakistan; (L.J.M.N.); (S.B.)
| | - Rabia Habib
- Department of Biosciences, COMSATS University Islamabad, Chak Shahzad, Islamabad 45550, Pakistan; (L.J.M.N.); (S.B.)
- Correspondence: (R.H.); (K.K.); (S.M.N.)
| | | | - Saqlain Raza
- Department of Mathematics, COMSATS University Islamabad, Chak Shahzad, Islamabad 45550, Pakistan;
| | - Eugenie Nepovimova
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic;
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, 50003 Hradec Kralove, Czech Republic;
- Correspondence: (R.H.); (K.K.); (S.M.N.)
| | - Sajida Batool
- Department of Biosciences, COMSATS University Islamabad, Chak Shahzad, Islamabad 45550, Pakistan; (L.J.M.N.); (S.B.)
| | - Syed Muhammad Nurulain
- Department of Biosciences, COMSATS University Islamabad, Chak Shahzad, Islamabad 45550, Pakistan; (L.J.M.N.); (S.B.)
- Correspondence: (R.H.); (K.K.); (S.M.N.)
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