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Sun X, Mao C, Wang J, Wu S, Qu Y, Xie Y, Sun F, Jiang D, Song Y. Unveiling the Potential of Sulfur-Containing Gas Signaling Molecules in Acute Lung Injury: A Promising Therapeutic Avenue. Curr Issues Mol Biol 2024; 46:7147-7168. [PMID: 39057067 PMCID: PMC11275821 DOI: 10.3390/cimb46070426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/30/2024] [Accepted: 07/04/2024] [Indexed: 07/28/2024] Open
Abstract
Acute lung injury (ALI) and its most severe form, acute respiratory distress syndrome (ARDS), are pulmonary conditions that cause significant morbidity and mortality. The common etiologies of these conditions include pneumonia, pulmonary contusion, fat embolism, smoke inhalation, sepsis, shock, and acute pancreatitis. Inflammation, oxidative stress, apoptosis, and autophagy are key pathophysiological mechanisms underlying ALI. Hydrogen sulfide (H2S) and sulfur dioxide (SO2) are sulfur-containing gas signaling molecules that can mitigate these pathogenic processes by modulating various signaling pathways, such as toll-like receptor 4 (TLR4)/nod-like receptor protein 3 (NLRP3), extracellular signal-regulating protein kinase 1/2 (ERK1/2), mitogen-activated protein kinase (MAPK), phosphatidyl inositol 3 kinase (PI3K)/protein kinase B (Akt)/mammalian target of rapamycin (mTOR), and nuclear factor kappa B (NF-κB), thereby conferring protection against ALI. Given the limited clinical effectiveness of prevailing ALI treatments, investigation of the modulation of sulfur-containing gas signaling molecules (H2S and SO2) in ALI is imperative. This article presents an overview of the regulatory pathways of sulfur-containing gas signaling molecules in ALI animal models induced by various stimuli, such as lipopolysaccharide, gas inhalation, oleic acid, and ischemia-reperfusion. Furthermore, this study explored the therapeutic prospects of diverse H2S and SO2 donors for ALI, stemming from diverse etiologies. The aim of the present study was to establish a theoretical framework, in order to promote the new treatment of ALI.
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Affiliation(s)
- Xutao Sun
- Department of Typhoid, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China;
| | - Caiyun Mao
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (C.M.); (S.W.); (Y.Q.)
| | - Jiaxin Wang
- Department of Synopsis Golden Chamber, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (J.W.); (Y.X.)
| | - Siyu Wu
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (C.M.); (S.W.); (Y.Q.)
| | - Ying Qu
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (C.M.); (S.W.); (Y.Q.)
| | - Ying Xie
- Department of Synopsis Golden Chamber, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (J.W.); (Y.X.)
| | - Fengqi Sun
- Department of Pathology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China;
| | - Deyou Jiang
- Department of Synopsis Golden Chamber, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (J.W.); (Y.X.)
| | - Yunjia Song
- Department of Pharmacology, School of Basic Medical Sciences, Heilongjiang University of Chinese Medicine, Harbin 150040, China; (C.M.); (S.W.); (Y.Q.)
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Jia T, Pu C, Qin T, Liu B, Yao G, Xun Z, Wang B, Tian Y, Zhang Z, Xu H, Zhao C. Azocalixarene-Based Supramolecular System for the Detection of Paraquat via an Improved Indicator Displacement Assay. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:15981-15989. [PMID: 36510782 DOI: 10.1021/acs.jafc.2c06051] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In view of the lethal toxicity of paraquat (PQ) on human health, herein, a simple indicator displacement assay (IDA) based on an azo-modified calixarene host (azoCX[4]) and a fluorophore guest (p-DPD) were elaborately constructed for PQ detection in environmental water samples and plant surfaces. The fluorescent signal of p-DPD in the probe can be quenched by azoCX[4] through a photon-induced electron transfer process and recovered upon the addition of PQ within 10 s. The detection range of the p-DPD@azoCX[4] probe was calculated to be 0.35-8 μM in the Tris-HCl buffer solutions (pH = 7.4). Moreover, this probe exhibited excellent detection selectivity toward PQ over five herbicides (glyphosate, bispyribac, atrazine, ametryn, and bensulfuron methyl), together with anti-interference abilities in the presence of inorganic ions (K+, Na+, Zn2+, Ni2+, Li+, F-, Cl-, Br-, CO32-, HCO3-, and NO3-) and amino acids (Asp, Arg, Glu, Ala, and Cys). Particularly, the probe was successfully used to detect PQ in real water samples with acceptable accuracy and showed potential applications for on-site detection with paper-based test strips and on the leaf surface. We believe that this simplified IDA-based probe provided an effective detecting tool for PQ, and the design strategy would guide the further development of new IDA sensing systems.
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Affiliation(s)
- Tianhao Jia
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong510642, China
| | - Chunmei Pu
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong510642, China
| | - Tianyi Qin
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong510642, China
| | - Bin Liu
- College of Material Science and Engineering, Shenzhen University, Shenzhen, Guangdong518060, China
| | - Guangkai Yao
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong510642, China
| | - Zhiqing Xun
- Guangzhou Quality Supervision and Testing Institute, 1-2 Zhujiang Road, Guangzhou, Guangdong511447, China
| | - Bingfeng Wang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong510642, China
| | - Yongqing Tian
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong510642, China
| | - Zhixiang Zhang
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong510642, China
| | - Hanhong Xu
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong510642, China
| | - Chen Zhao
- Key Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education and State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, South China Agricultural University, Guangzhou, Guangdong510642, China
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Daneshvar A, Jouzdani AF, Firozian F, Asl SS, Mohammadi M, Ranjbar A. Neuroprotective effects of crocin and crocin-loaded niosomes against the paraquat-induced oxidative brain damage in rats. Open Life Sci 2022; 17:1174-1181. [PMID: 36185402 PMCID: PMC9482421 DOI: 10.1515/biol-2022-0468] [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: 02/22/2022] [Revised: 06/08/2022] [Accepted: 06/20/2022] [Indexed: 11/23/2022] Open
Abstract
Paraquat (PQ) is a nonselective herbicide that induces oxidative reactions and multiple-organ failure on exposure. Crocin, a carotenoid obtained from saffron, has demonstrated many therapeutic effects against neural conditions because of its antioxidant properties. In this study, 30 male Wistar rats were divided into 6 groups to evaluate the protective effects of crocin and crocin-loaded niosomes (NC) against PQ in the brain. The levels of total antioxidant capacity (TAC), lipid peroxidation (LPO), total thiol groups (TTG), superoxide dismutase (SOD), and catalase (CAT) activity were measured as the markers of redox status. Histopathological changes in the CA1 region of the hippocampus were evaluated by cresyl violet staining. Results indicated that both crocin and NC were able to attenuate the adverse effects of PQ at the histopathological level, which was following the changes in LPO (P < 0.0001), TAC (P < 0.01), and TTG (P < 0.05) level. The activity of CAT (P < 0.01) and SOD (P < 0.01) could be restored either by crocin or NC. Also, results indicated that nanoformulation of crocin in niosomes appears to be more promising. In conclusion, both crocin and NC showed favourable effects of PQ in the brain of rats, and were determined to be excellent agents to prevent acute toxicities of PQ. Furthermore, these two compounds can be known to provide neuroprotection.
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Affiliation(s)
- Afsoon Daneshvar
- Department of Pharmacology and Toxicology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, 6517838678, Iran
| | - Ali Fathi Jouzdani
- Department of Neuroscience, Neuroscience and Artificial Intelligence Research Group (NAIRG), Student Research Committee, Hamadan University of Medical Sciences, Hamadan, Iran
- USERN Office, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Farzin Firozian
- Department of Pharmaceutics, Faculty of Pharmacy, Hamadan University of Medical Science, Hamadan, Iran
| | - Sara Soleimani Asl
- Department of Anatomy, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mojdeh Mohammadi
- Department of Pharmacology and Toxicology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, 6517838678, Iran
| | - Akram Ranjbar
- Department of Pharmacology and Toxicology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, 6517838678, Iran
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Cüce M, Sezgin Muslu A. Sodium nitroprusside mediates attenuation of paraquat-mediated oxidative stress in Eruca sativa in vitro. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2022; 28:289-299. [PMID: 35221584 PMCID: PMC8847503 DOI: 10.1007/s12298-022-01132-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 11/28/2021] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Paraquat (PQ) causes oxidative stress, the main source of damage in plants subjected to adverse environmental factors. Sodium nitroprusside (SNP), a signaling molecule, alleviates oxidative damage. The present study was carried out to investigate the role of exogenous SNP in the amelioration of PQ-mediated oxidative stress effects on Eruca sativa plantlets cultured in MS basal media. Firstly, MS medium supplemented with 6-BA was found to be the best basal medium for seed germination. Then, a rapid micropropagation protocol was designed to produce E. sativa plantlets by using nodal segments as explants, and 0.25 mg/L 6-BA in combination with 0.1 mg/L IBA was found to be the most favorable for shoot proliferation of E. sativa. Four weeks old plants were applied with or without SNP (100 μM) and exposed to oxidative stress induced by 2.5 μM PQ. The SNP application decreased membrane damage, hydrogen peroxide, and proline contents, and increased relative water, pigments, ascorbate and total phenolic contents, and some antioxidant enzyme activities in seedlings under PQ stress compared to PQ stress alone. These results suggested that exogenous SNP could protect E. sativa plantlets propagated in vitro with PQ stress through modulation of proline and phenolics biosynthesis and antioxidant defense system.
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Affiliation(s)
- Mustafa Cüce
- Department of Food Technology, Şebinkarahisar School of Applied Sciences, Giresun University, Giresun, Turkey
| | - Asiye Sezgin Muslu
- Department of Biology, Faculty of Science, Karadeniz Technical University, 61080 Trabzon, Turkey
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Singh D, Yadav A, Singh C. Autonomous regulation of inducible nitric oxide synthase and cytochrome P450 2E1-mediated oxidative stress in maneb- and paraquat-treated rat polymorphs. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2021; 178:104944. [PMID: 34446210 DOI: 10.1016/j.pestbp.2021.104944] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/28/2021] [Accepted: 07/28/2021] [Indexed: 06/13/2023]
Abstract
Maneb (MB)- and paraquat (PQ)-induced oxidative stress in rat polymorphonuclear leukocytes (PMNs) is regulated in parallel by cytochrome P450 2E1 (CYP2E1) and inducible nitric oxide synthase (iNOS). However, mechanism underlying their regulation is not yet understood. The study investigated the role of nuclear factor- kappa B (NF-κB) and mitogen-activated protein kinase/extracellular signal regulated kinase/protein kinase C (MEK/ERK/PKC) pathway in the regulation of iNOS- and CYP2E1-induced oxidative stress in PMNs. MB + PQ-induced changes in nitrite content, lipid peroxidation (LPO), iNOS expression/activity and inflammatory mediators were alleviated by aminoguanidine (AG), an iNOS inhibitor, without any change in CYP2E1. Alternatively, diallyl sulphide (DAS), a CYP2E1 inhibitor, rescued from MB + PQ-induced changes in CYP2E1 activity/expression, free radical generation, superoxide dismutase (SOD) activity, LPO and pro-inflammatory cytokines without any alterations in nitrite content and iNOS activity/expression. Pyrrolidine dithiocarbamate (PDTC), NF-κB inhibitor, did not alter CYP2E1 but mitigated free radical generation, SOD activity, LPO, nitrite content, iNOS activity/expression and levels of pro-inflammatory cytokines (tumor necrosis factor-α, interleukine-1β and interleukine-4). Ex-vivo treatment with MEK inhibitor (PD98059), ERK1/2 inhibitor (AG126) or PKC inhibitor (rottlerin) ameliorated MB + PQ-induced increase in free radical generation and CYP2E1 activity/expression in PMNs. While PD98059 and AG126 abated MB + PQ-induced increase in ERK1/2, PKC-α/δ and CYP2E1 levels, rottlerin restored PKC-α/δ and CYP2E1 towards normalcy without affecting ERK1/2 level in MB + PQ-treated group. The results suggest that iNOS and CYP2E1 contributing to MB + PQ-induced oxidative stress in rat PMNs exhibit differential regulatory mechanisms. The inflammatory mediators regulate iNOS expression while CYP2E1 expression is triggered via MEK-ERK1/2-PKC pathway.
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Affiliation(s)
- Deepali Singh
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow 226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India
| | - Archana Yadav
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow 226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India
| | - Chetna Singh
- Developmental Toxicology Laboratory, Systems Toxicology and Health Risk Assessment Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhawan 31, Mahatma Gandhi Marg, Lucknow 226 001, Uttar Pradesh, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201 002, Uttar Pradesh, India.
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Abstract
BACKGROUND Paraquat poisoning is one of leading intoxication worldwide without an effective antidote and treatment protocol. Among the other organs, cardiotoxicity of paraquat has been frequently reported. AIM The protective effects of atorvastatin (STN) on paraquat-induced cardiotoxicity and the role of peroxisome proliferator-activated receptors γ in the mediation of STN effects were investigated. METHODS Forty-two male Wistar rats were aliquoted into control or test groups. The animals in test groups in addition of paraquat received saline normal (PQ), pioglitazone (PGT), atorvastatin (STN), PGT + STN, PGT + GW9662, and/or STN + GW9662 for 14 days. RESULTS PGT and STN lowered lipid peroxidation rate, nitric oxide concentration, and activity of myeloperoxidase and CK/MB in the heart. PGT and STN protected from thiol molecules reduction and PQ-induced histopathological injuries. STN regulated the PQ-induced upregulation of COX-II expression in the heart. All STN-related protective effects were reversed by GW9662 as PPARγ antagonist. CONCLUSIONS These data suggest a cardioprotective effect for STN against the PQ-induced inflammation and oxidative stress. The pharmacologic approach of these findings indicates that STN through PPARγ pathway lowered the PQ-induced cardiotoxicity.
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Keowkase R, Kijmankongkul N, Sangtian W, Poomborplab S, Santa-ardharnpreecha C, Weerapreeyakul N, Sitthithaworn W. Protective Effect and Mechanism of Fruit Extract of Aegle marmelos Against Amyloid-β Toxicity in a Transgenic Caenorhabditis elegans. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20933511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Alzheimer’s disease (AD) is the most common form of dementia found in the elderly. AD is caused by the accumulation of toxic proteins including amyloid-β (Aβ). The purpose of this study was to investigate the effect of fruit extract of Aegle marmelos against Aβ toxicity in Caenorhabditis elegans. The fruit of A. marmelos has been used in a traditional Thai herb formula in fatigue patients recovering from illnesses such as fever and diarrhea. We used a transgenic C. elegans strain CL4176, which expresses the human Aβ42, to investigate the effects and the mechanisms of action of the extracts against Aβ toxicity. The extract of A. marmelos significantly delayed Aβ-induced paralysis. Aegle marmelos lost the ability to delay Aβ-induced paralysis in worms fed with daf-16 ribonucleic acid interference (RNAi) bacteria, but not in worms fed with hsf-1 and skin-1 RNAi bacteria. These results indicated that daf-16 transcription factor was required for A. marmelos-mediated delayed paralysis. Aegle marmelos enhanced the level of daf-16 gene. Taken together, these results indicated that A. marmelos reduced Aβ toxicity via the DAF-16-mediated cell signaling pathway. In addition, A. marmelos reduced toxic Aβ oligomers. Aegle marmelos also displayed antioxidative effect in in vivo as it enhanced resistance to paraquat-induced oxidative stress in wild type worms. All of the results suggested that A. marmelos can protect against Aβ-induced toxicity and can be a potential candidate for the prevention or treatment of AD.
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Affiliation(s)
- Roongpetch Keowkase
- Department of Biopharmacy, Faculty of Pharmacy, Srinakharinwirot University, Nakhonnayok, Thailand
| | - Nattanon Kijmankongkul
- Department of Biopharmacy, Faculty of Pharmacy, Srinakharinwirot University, Nakhonnayok, Thailand
| | - Wanapong Sangtian
- Department of Biopharmacy, Faculty of Pharmacy, Srinakharinwirot University, Nakhonnayok, Thailand
| | - Sireethorn Poomborplab
- Department of Biopharmacy, Faculty of Pharmacy, Srinakharinwirot University, Nakhonnayok, Thailand
| | | | - Natthida Weerapreeyakul
- Division of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, Thailand
- Human High Performance and Health Promotion (HHP&HP) Research Institute, Khon Kaen University, Thailand
| | - Worapan Sitthithaworn
- Department of Pharmacognosy, Faculty of Pharmacy, Srinakharinwirot University, Nakhonnayok, Thailand
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Pourakbari Z, Aliakbar A, Sheykhan M. A metal-catex composite electrode for determination of paraquat in various samples by Ad-differential pulse cathodic stripping voltammetry. Talanta 2020; 212:120793. [PMID: 32113555 DOI: 10.1016/j.talanta.2020.120793] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 11/19/2022]
Abstract
In this work, a novel kind of metal-catex composite electrode for determination of paraquat (PQ) by adsorptive differential pulse voltammetry is introduced. The metal-catex composite electrode was fabricated by cathodic electropolymerization of p-nitrophenol and p-nitrobenzoic acid in the presence of tin (II) chloride as a scaffold for composite structure on prepared glassy carbon electrode. Electropolymerization was carried out in sodium acetate medium. The surface of the fabricated electrode was characterized with field emission scanning electron microscope and energy-dispersive X-ray spectrometry. The obtained results show that there are Sn nanoparticles in the structure of the catex-composite. Chemical structure of metal-catex composite electrode was investigated using FTIR (ATR), 13C NMR, H NMR and a suitable mechanism for electropolymerization has been proposed. This metal-catex composite electrode was applied for determinations of PQ using sodium acetate buffer solutions at pH = 6.5 as an electrolyte solution. All parameters influencing the performance of the fabricated electrode were studied and optimized. The proposed electrode exhibits good linearity versus PQ concentration in the range of 3.8 × 10-8 to 7.7 × 10-7 mol L-1 and shows a manifold increase in sensitivity (more than 30 times) as compared to the glassy carbon electrode. The LOQ of this electrode was 7.78 × 10-9 mol L-1, which is comparable with that of other electrochemical methods. The mean, standard deviation and relative standard deviation for seven repetitive determinations of paraquat (7.78 × 10-8 mol L-1) were measured to be 7.75 × 10-8 mol L-1, ±0.29 × 10-8 mol L-1, and 3.75% respectively. This electrode was applied for the determination of paraquat in natural water, natural juice, potatoes and onions. The introduced electrode shows good stability with repeated use and over long periods (about 20 days). There is a good agreement between the results for water analysis by this method and the standard method.
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Affiliation(s)
- Zahra Pourakbari
- Department of Chemistry, Faculty of Science, University of Guilan, P. O. Box 4193833697, Rasht, Iran
| | - Alireza Aliakbar
- Department of Chemistry, Faculty of Science, University of Guilan, P. O. Box 4193833697, Rasht, Iran.
| | - Mehdi Sheykhan
- Department of Chemistry, Faculty of Science, University of Guilan, P. O. Box 4193833697, Rasht, Iran
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Firouzian F, Pourshoja P, Nili-Ahmadabadi A, Ranjbar A. Hepatoprotective effect of N-acetylcystein loaded niosomes on liver function in paraquat-induced acute poisoning. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2019; 160:146-153. [PMID: 31519249 DOI: 10.1016/j.pestbp.2019.08.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 08/12/2019] [Accepted: 08/12/2019] [Indexed: 06/10/2023]
Abstract
Paraquat (PQ) is widely used as a herbicide around the world. PQ intoxication causes liver disease mainly in mammals. N-acetyl cysteine (NAC) is a medication that has positive effects in reducing the liver intoxication caused by PQ. Here, after formulating a NAC noisome nanoparticle (NACNP), we compared the niosomes and NAC on liver toxicity caused by PQ. Thirty male rats were divided into 5 groups and were treated intraperitoneally with PQ and NAC and NACNP for 24 h. PQ group received 35 mg/kg/day of PQ, while NAC and NACNP groups were administered with 25 mg/kg/day of NAC and NACNP, respectively. In addition, 6 rats receiving saline solution were considered as control group. Serum and liver tissue samples were collected from all rats. Alanine (AST) and aspartate (ALT) aminotransferase levels, and oxidative stress biomarkers including total antioxidant capacity (TAC), lipid peroxidation (LPO), and total thiol groups (TTG) levels were determined. Histological samples were also analyzed using hematoxylin and eosin staining slides. PQ administration resulted in hepatic injury as evidenced by increases in serum AST and ALT levels (p < .001). NACNP decreased LPO, TAC, and TTG levels compered to PQ group in liver tissue. Treatment of animals with NACNP was significantly more effective than free NAC in reducing PQ-induced hepatotoxicity (p < .05). Histological evaluation showed that PQ caused tissue inflammation, which was reduced by NAC treatment. This reduction was stronger for NACNP. Given these results, the use of NACNP, compared to NAC, was more protective against the development of the PQ-induced liver toxicity.
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Affiliation(s)
- Farzin Firouzian
- Department of Pharmaceutics, Faculty of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Parisa Pourshoja
- Department of Pharmaceutics, Faculty of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran; Department of Toxicology & Pharmacology, Faculty of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Amir Nili-Ahmadabadi
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Akram Ranjbar
- Department of Toxicology & Pharmacology, Faculty of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran; Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran.
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Yi R, Zhizhou Y, Zhaorui S, Wei Z, Xin C, Shinan N. Retrospective study of clinical features and prognosis of edaravone in the treatment of paraquat poisoning. Medicine (Baltimore) 2019; 98:e15441. [PMID: 31083174 PMCID: PMC6531030 DOI: 10.1097/md.0000000000015441] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
To observe whether edaravone can protect organs and inhibit pulmonary fibrosis in patients with paraquat poisoning and to provide a method for clinical intervention for paraquat poisoning.Forty-four cases of paraquat poisoning were collected from March 2011 to December 2017 in our hospital. Eighteen cases from March 2011 to November 2013 did not receive edaravone treatment and were considered the control group, and 26 cases from January 2014 to December 2017 were treated with edaravone and were considered the observation group. Injuries to the central nervous system, heart, liver, kidney, and digestive system were evaluated on at 24 hours, 3 days, and 7 days after hospitalization. The expression of serum inflammatory factors (interleukin [IL]-6, IL-10, tumor necrosis factor-α [TNF-α]) and oxidative stress correlation (superoxide dismutase [SOD] and malondialdehyde [MDA]) were assayed at 24 hours, 3 days, and 7 days after being hospitalized. After 7, 14, and 30 days, the changes in pathological lung characteristics in the 2 groups were assessed, and survival rates were calculated.Edaravone significantly increased the serum levels of SOD and obviously markedly reduce the serum levels of IL-6, IL-10, TNF-α, and MDA in patients poisoned with paraquat (P < .05). Edaravone significantly protected the liver (P = .021), cardiovascular (P = .031), and renal (P = .028) organs of patients from paraquat poisoning-induced injury after 7 days but had no significant protection or improvement on respiratory and digestive tract damage. Edaravone delayed the occurrence of pulmonary fibrosis and increase the survival time of patients at 7 and 14 days (P < .05). However, the 1-month follow-up found that edaravone did not reduce pulmonary fibrosis (77.8% vs 73.1%, P = .615) and did not increase the survival rate of the patients (61.1% vs 65.3%, P = .853).Edaravone is beneficial for protecting the kidneys and liver from paraquat poisoning through reducing oxidative stress and inhibiting inflammatory response. It can also inhibit the pulmonary fibrosis process and prolong the survival time of the patients. However, no significant improvements were seen in the probability of pulmonary fibrosis and the survival rate.
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Melittin Exerts Beneficial Effects on Paraquat-Induced Lung Injuries In Mice by Modifying Oxidative Stress and Apoptosis. Molecules 2019; 24:molecules24081498. [PMID: 30995821 PMCID: PMC6514788 DOI: 10.3390/molecules24081498] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 04/05/2019] [Accepted: 04/08/2019] [Indexed: 12/21/2022] Open
Abstract
Melittin (MEL) is a 26-amino acid peptide with numerous biological activities. Paraquat (PQ) is one of the most widely used herbicides, although it is extremely toxic to humans. To date, PQ poisoning has no effective treatment, and therefore the current study aimed to assess for the first time the possible effects of MEL on PQ-induced lung injuries in mice. Mice received a single intraperitoneal (IP) injection of PQ (30 mg/kg), followed by IP treatment with MEL (0.1 and 0.5 mg/kg) twice per week for four consecutive weeks. Histological alterations, oxidative stress, and apoptosis in the lungs were studied. Hematoxylin and eosin (H&E) staining indicated that MEL markedly reduced lung injuries induced by PQ. Furthermore, treatment with MEL increased superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) activity, and decreased malonaldehyde (MDA) and nitric oxide (NO) levels in lung tissue homogenates. Moreover, immunohistochemical staining showed that B-cell lymphoma-2 (Bcl-2) and survivin expressions were upregulated after MEL treatment, while Ki-67 expression was downregulated. The high dose of MEL was more effective than the low dose in all experiments. In summary, MEL efficiently reduced PQ-induced lung injuries in mice. Specific pharmacological examinations are required to determine the effectiveness of MEL in cases of human PQ poisoning.
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Heidary Dartoti H, Firozian F, Soleimani Asl S, Ranjbar A. Protective Role of Ce Nanoparticles Against the Hepatotoxicity Induced by Exposure to Paraquat. AVICENNA JOURNAL OF MEDICAL BIOCHEMISTRY 2018. [DOI: 10.15171/ajmb.2018.09] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Objectives: The present study aimed to investigate the antioxidant activity of cerium oxide nanoparticles (CeNPs) against paraquat (PQ)-induced liver injury in rats. Methods: Thirty-two male rats were divided into four 8-member groups and treated intraperitoneally with PQ and/or CeNPs for 14 days. Group 1 received PQ (5 mg/kg/d), group 2 received CeNPs (15, 30, and 60 mg/kg/d), group 3 received a combination of PQ (5 mg/kg/d) and CeNPs (15, 30, and 60 mg/kg/d), and group 4 (control group) received saline solution. Serum samples along with liver tissue samples were collected from all the rats. Oxidative stress (OS) biomarkers including total antioxidant capacity, lipid peroxidation, total thiol groups, DNA damage, and nitric oxide levels were determined. Histological samples were also analyzed using hematoxylin and eosin staining slides. Results: Levels of oxidative stress and hepatic tissue damage were significantly higher in the PQ group compared to the control group. CeNPs at a dose of 15 mg/kg showed the antioxidant activity and compromised the PQ-induced damage. Conclusion: In the scenario tested in this study, CeNPs could reduce the levels of OS, as well as hepatic damage induced by PQ.
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Affiliation(s)
- Hamid Heidary Dartoti
- Department of Toxicology and Pharmacology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Farzin Firozian
- Department of Pharmaceutical, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Sara Soleimani Asl
- Anatomy Department, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Akram Ranjbar
- Nutrition Health Research Center, Hamadan University of Medical Sciences, Hamadan, Iran
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Ranjbar A, Soleimani Asl S, Firozian F, Heidary Dartoti H, Seyedabadi S, Taheri Azandariani M, Ganji M. Role of Cerium Oxide Nanoparticles in a Paraquat-Induced Model of Oxidative Stress: Emergence of Neuroprotective Results in the Brain. J Mol Neurosci 2018; 66:420-427. [DOI: 10.1007/s12031-018-1191-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 09/25/2018] [Indexed: 12/25/2022]
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Zhang WX, Xiao XY, Peng CG, Chen WL, Xie S, Wang DW. Sodium tanshinone IIA sulfate protects myocardium against paraquat-induced toxicity through activating the Nrf2 signaling pathway in rats. Hum Exp Toxicol 2018; 38:247-254. [PMID: 30112919 DOI: 10.1177/0960327118792051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective: To investigate the therapeutic effect and mechanism of sodium tanshinone IIA sulfate (STS) on paraquat (PQ)-induced myocardial injuries in a rat model. Methods: Healthy adult Sprague Dawley rats were randomly divided into normal control, PQ, and PQ + STS groups. PQ group was given a single intragastric administration of PQ (80 mg/kg). PQ + STS group was intraperitoneally injected with STS (1 ml/kg) at 30 min following PQ exposure. Rats in control and PQ groups were injected with equal amount of saline. After 12, 24, 48, and 72 h, rats were killed, and the apoptosis of myocardial cells was detected. Myocardial expression of Bax and Bcl-2 was measured. The activity of the nuclear erythroid 2-related factor 2 (Nrf2) pathway was assessed by Western blot. Results: The apoptotic cells in PQ group were significantly increased in a time-dependent manner compared with the control group ( p < 0.01). The rats in PQ group exhibited significantly lower Bcl-2 expression, but notably higher Bax expression at 12, 24, 48, and 72 h after PQ exposure ( p < 0.05 or 0.01). STS intervention markedly reduced the proportion of apoptotic myocardial cells, increased Bcl-2 expression, and decreased Bax expression at 24, 48, and 72 h after treatment ( p < 0.05 or 0.01). The expression of phosphorylated Nrf2 and heme oxygenase 1 in PQ + STS group was significantly increased compared with PQ and control groups ( p < 0.05 or 0.01). Conclusion: STS effectively inhibits PQ-induced myocardial cell apoptosis in rats via modulating the Nrf2 pathway, suggesting its potential as a promising therapeutic agent for PQ-induced myocardium damage.
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Affiliation(s)
- WX Zhang
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - XY Xiao
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - CG Peng
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - WL Chen
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - S Xie
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
| | - DW Wang
- Department of Emergency, Jiangxi Provincial People’s Hospital, Nanchang, Jiangxi, China
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Mandal S, Pathak MP, Sharma Bora N, Patowary P, Barman PK, Kishor S, Goyary D, Verma N, Chattopadhyay P. Determination of LCt 50 of aerosolized paraquat and its pulmonary toxic implications in non-anesthetized rats. Drug Chem Toxicol 2018; 42:552-558. [PMID: 30081682 DOI: 10.1080/01480545.2018.1488857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Paraquat (PQ), a highly popular agricultural herbicide, is a serious occupational hazard with lethality reported at doses as low as 35 mg/kg body weight with intoxication occurring via inhalation or dermal route. The main objective of this study was to determine the median lethal concentration (LCt50) of paraquat through whole body exposure in adult male Wistar rats. Aerosolized PQ dissolved in water was delivered in a dose-dependent manner, to fully conscious rats confined in whole body plethysmograph (WBP), in a nebulized form with concentrations ranging from 40-200 mg/kg of air over a 4 h exposure period. Animals were observed up to 24-48 h post-exposure to observe any lethality. LCt50 estimates (±95% confidence interval) were obtained from the sequential stage-wise experiments using probit analysis. Rat lungs were examined radiologically and histopathologically. Gas chromatography-mass spectrometry (GC-MS) analysis determined the correlation of PQ accumulation in the lungs with the actual exposed dose of PQ. The actual LCt50 was found to be 218 g·min/m3 whereas 57.9 ± 2.90 µg/g of PQ accumulated in the lungs of each lifeless animal. All animals exhibited severe respiratory changes and pulmonary abnormalities. This study demonstrated that when compared with the actually exposed dose, the amount of PQ that accumulated in the lungs was very low, but enough to cause death in 50% of animal population and cause pulmonary abnormalities in each of the experimental animal. The PQ exposure carried out in WBP also facilitated the dermal absorption of aerosolized PQ, which replicated the real-life situation in workers operating with PQ.
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Affiliation(s)
- Santa Mandal
- a Division of Pharmaceutical Technology, Defence Research Laboratory , Tezpur , Assam , India.,b School of Pharmaceutical Sciences , IFTM University , Moradabad , Uttar Pradesh , India
| | - Manash Pratim Pathak
- a Division of Pharmaceutical Technology, Defence Research Laboratory , Tezpur , Assam , India.,c Department of Pharmaceutical Sciences , Dibrugarh University , Dibrugarh , Assam , India
| | - Nilutpal Sharma Bora
- a Division of Pharmaceutical Technology, Defence Research Laboratory , Tezpur , Assam , India.,c Department of Pharmaceutical Sciences , Dibrugarh University , Dibrugarh , Assam , India
| | - Pompy Patowary
- a Division of Pharmaceutical Technology, Defence Research Laboratory , Tezpur , Assam , India.,c Department of Pharmaceutical Sciences , Dibrugarh University , Dibrugarh , Assam , India
| | | | - Sumit Kishor
- a Division of Pharmaceutical Technology, Defence Research Laboratory , Tezpur , Assam , India
| | - Danswrang Goyary
- a Division of Pharmaceutical Technology, Defence Research Laboratory , Tezpur , Assam , India
| | - Navneet Verma
- b School of Pharmaceutical Sciences , IFTM University , Moradabad , Uttar Pradesh , India
| | - Pronobesh Chattopadhyay
- a Division of Pharmaceutical Technology, Defence Research Laboratory , Tezpur , Assam , India
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de Oliveira MR, de Bittencourt Brasil F, Fürstenau CR. Inhibition of the Nrf2/HO-1 Axis Suppresses the Mitochondria-Related Protection Promoted by Gastrodin in Human Neuroblastoma Cells Exposed to Paraquat. Mol Neurobiol 2018; 56:2174-2184. [PMID: 29998398 DOI: 10.1007/s12035-018-1222-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 07/03/2018] [Indexed: 12/16/2022]
Abstract
Mitochondria are double-membrane organelles involved in the transduction of energy from different metabolic substrates into adenosine triphosphate (ATP) in mammalian cells. The oxidative phosphorylation system is comprised by the activity of the respiratory chain and the complex V (ATP synthase/ATPase). This system is dependent on oxygen gas (O2) in order to maintain a flux of electrons in the respiratory chain, since O2 is the final acceptor of these electrons. Electron leakage from this complex system leads to the continuous generation of reactive species in the cells. The mammalian cells exhibit certain mechanisms to attenuate the consequences originated from the constant exposure to these reactive species. In this context, the transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) and one of the enzymes whose expression is modulated by Nrf2, heme oxygenase-1 (HO-1), take a central role in inducing cytoprotection in humans. Mitochondrial abnormalities are observed during intoxication and in certain diseases, including neurodegeneration. Mitochondrial protection promoted by natural compounds has attracted the attention of researchers due to the promising effects these agents induce experimentally. In this regard, we examined here whether and how gastrodin (GAS), a phenolic glucoside, would prevent the paraquat (PQ)-induced mitochondrial impairment in the SH-SY5Y cells. The cells were exposed to GAS (25 μM) for 4 h prior to the challenge with PQ at 100 μM for additional 24 h. The silencing of Nrf2 by siRNA or the inhibition of HO-1 by ZnPP IX suppressed the GAS-elicited cytoprotection. Therefore, GAS promoted mitochondrial protection by an Nrf2/HO-1-dependent manner.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Grupo de Estudos em Neuroquímica e Neurobiologia de Moléculas Bioativas, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Cuiaba, MT, 78060-900, Brazil.
- Programa de Pós-Graduação em Química (PPGQ), Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil.
- Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade Federal de Mato Grosso (UFMT), Cuiabá, Brazil.
| | - Flávia de Bittencourt Brasil
- Departamento de Ciências da Natureza, Campus Universitário de Rio das Ostras, Universidade Federal Fluminense (UFF), Rio de Janeiro, Brazil
| | - Cristina Ribas Fürstenau
- Instituto de Biotecnologia (IBTEC), Universidade Federal de Uberlândia (UFU), Patos de Minas, MG, Brazil
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Hu X, Guo R, Chen X, Chen Y. Increased plasma prothrombin time is associated with poor prognosis in patients with paraquat poisoning. J Clin Lab Anal 2018; 32:e22597. [PMID: 29943421 DOI: 10.1002/jcla.22597] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 05/31/2018] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND Paraquat can cause severe injury to vascular endothelial cells and lead to coagulation dysfunction when it is taken into the blood by oral ingestion. In this study, we aim to find a routine coagulation index to serve as an indicator of outcome in patients with acute paraquat poisoning. METHODS Between January 2012 and December 2016, 209 patients who attempted suicide by oral ingestion of paraquat were admitted to the emergency room. Routine coagulation indices, including plasma prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen (Fbg), thrombin time (TT), and D-dimer were measured to analyze the trend of changes and their relationship with prognosis. RESULTS The results showed that the PT and APTT values in the ≥30 mL group were significantly greater than those in the <30 mL group (both P < .01). Within 1 week of admission, PT and APTT values gradually decreased, while Fbg levels gradually increased. Univariate and multivariate Cox regression analysis indicated that sex, ingestion volume, and PT were independent predictors of mortality within 40 days. The cumulative survival rates differed significantly (P = .001) between patients with PT <12 seconds and PT ≥12 seconds. CONCLUSIONS Coagulation status in patients with PQ poisoning was closely related to prognosis. Routine monitoring of coagulation function, particularly PT in plasma, is helpful for analysis of the condition and prognosis of patients with PQ poisoning.
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Affiliation(s)
- Xiao Hu
- Department of Laboratory Medicine, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Clinical In Vitro Diagnostic Techniques of Zhejiang Province, Hangzhou, China
| | - Renyong Guo
- Department of Laboratory Medicine, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Clinical In Vitro Diagnostic Techniques of Zhejiang Province, Hangzhou, China
| | - Xing Chen
- Department of Laboratory Medicine, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Clinical In Vitro Diagnostic Techniques of Zhejiang Province, Hangzhou, China
| | - Yu Chen
- Department of Laboratory Medicine, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China.,Key Laboratory of Clinical In Vitro Diagnostic Techniques of Zhejiang Province, Hangzhou, China
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Hasanuzzaman M, Nahar K, Alam MM, Bhuyan MB, Oku H, Fujita M. Exogenous nitric oxide pretreatment protects Brassica napus L. seedlings from paraquat toxicity through the modulation of antioxidant defense and glyoxalase systems. PLANT PHYSIOLOGY AND BIOCHEMISTRY 2018; 126:173-186. [PMID: 0 DOI: 10.1016/j.plaphy.2018.02.021] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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Shivakumar A, Yogendra Kumar MS. Critical Review on the Analytical Mechanistic Steps in the Evaluation of Antioxidant Activity. Crit Rev Anal Chem 2018; 48:214-236. [DOI: 10.1080/10408347.2017.1400423] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
| | - M. S. Yogendra Kumar
- Defence Bio-Engineering and Electromedical Laboratory, Defense Research and Development Organization, Bengaluru, Karnataka, India
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20
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Bonadiman BDSR, Cadoná FC, Assmann CE, Weis GCC, de Oliveira Alves A, Duarte MF, Chaves CM, do Carmo Chaves C, dos Santos Motta KM, Ribeiro EE, Bagatini MD, da Cruz IBM. Guarana (Paullinia cupana): Cytoprotective effects on age-related eye dysfunction. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.07.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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21
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Xu X, Yu Z, Liang Y, Gao H, Liu Y, Yu Y. Mumps caused by paraquat-induced poisoning: A case report. Exp Ther Med 2017; 13:401-404. [PMID: 28352307 PMCID: PMC5348647 DOI: 10.3892/etm.2016.3982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 05/27/2016] [Indexed: 12/11/2022] Open
Abstract
Paraquat (PQ) is a highly toxic herbicide that harms the liver, kidney, lungs and heart, and results in a variety of complications. The majority of patients with severe PQ poisoning may succumb to multiple organ failure, and the mortality rate is high. Although a large number of studies have been performed investigating PQ poisoning, cases of mumps caused by PQ-induced poisoning are rare. In the present case report, a 45-year-old female who ingested PQ was admitted to the Emergency Department of Liaocheng People's Hospital (Liaocheng, China). During the development of the disease, mumps was caused by a cavity ulcer following PQ poisoning. To the best of our knowledge, cases of mumps following PQ poisoning are rare.
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Affiliation(s)
- Xiaoyan Xu
- Department of Pharmacy, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Zhongkai Yu
- Department of Pharmacy, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Yongguang Liang
- Department of Pharmacy, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Hengqiang Gao
- Department of Pharmacy, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Yilin Liu
- Department of Pharmacy, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
| | - Yunbei Yu
- Department of Pharmacy, Liaocheng People's Hospital, Liaocheng, Shandong 252000, P.R. China
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Williams JH, Whitehead Z, Van Wilpe E. Paraquat intoxication and associated pathological findings in three dogs in South Africa. J S Afr Vet Assoc 2016; 87:e1-e9. [PMID: 28155296 PMCID: PMC6138077 DOI: 10.4102/jsava.v87i1.1352] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 06/24/2016] [Accepted: 08/23/2016] [Indexed: 11/01/2022] Open
Abstract
Paraquat is a bipyridylium non-selective contact herbicide commonly used worldwide. When ingestion occurs by humans and animals either accidentally, intentionally or maliciously, paraquat selectively accumulates in the lungs resulting in the production of oxygen-free radicals, causing membrane damage and cell death. Intoxicated subjects typically show progressive and fatal pulmonary haemorrhage, collapse and oedema. In individuals surviving the acute phase, pulmonary fibrosis develops. Gastrointestinal-, renal- and central nervous system clinical signs may also occur. Owing to the lack of effective treatment and absence of an antidote, the prognosis is poor. The clinical presentation, clinicopathological findings and treatment are briefly described of three dogs from one South African household, intoxicated with paraquat. Macroscopic and microscopic lesions in one dog that was necropsied, as well as pulmonary ultrastructure are detailed and illustrated for academic reference. All dogs presented with tachypnoea and dyspnoea 2-3 days after accidental paraquat ingestion. Treatment was aimed at reducing gastrointestinal absorption, enhancing elimination by diuresis and avoiding further oxidative damage by administration of antioxidants. All dogs, however, became progressively hypoxic despite treatment and were euthanised. Paraquat toxicity should be a differential diagnosis in dogs with unexplained progressive respiratory and gastrointestinal signs and renal failure. The local veterinary profession should be aware of accidental or intentional paraquat toxicity of animals. Existing literature, variations possible in canine clinical signs, measured parameters, lesions, as well as possible treatments, promising experimental antidotes and management options are discussed.
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Affiliation(s)
- June H Williams
- Department of Paraclinical Sciences, University of Pretoria.
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Amirshahrokhi K, Khalili AR. Carvedilol attenuates paraquat-induced lung injury by inhibition of proinflammatory cytokines, chemokine MCP-1, NF-κB activation and oxidative stress mediators. Cytokine 2016; 88:144-153. [PMID: 27619518 DOI: 10.1016/j.cyto.2016.09.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Revised: 09/01/2016] [Accepted: 09/06/2016] [Indexed: 11/16/2022]
Abstract
Paraquat is a highly toxic herbicide that selectively accumulates in the lungs and causes pulmonary damage through the oxidative and inflammatory processes. Carvedilol is a nonselective beta and alpha-adrenergic blocking agent that has been shown to possess powerful antioxidant and anti-inflammatory properties. In the present study, we evaluated the protective effects and the underlying mechanisms of carvedilol on paraquat-induced lung injury in a mouse model. Mice were injected with a single dose of paraquat (20mg/kg, ip), and treated with carvedilol (10 and 20mg/kg/day, orally) for eight days. At the end of the experiment, lung tissue and blood samples were collected for histological and biochemical analysis. The results showed that carvedilol treatment improved the histopathological changes in the lung tissue of mice exposed to paraquat. Carvedilol significantly decreased the levels of malondialdehyde (MDA), carbonyl protein, myeloperoxidase (MPO), and nitric oxide (NO), while increased the levels of glutathione (GSH), superoxide dismutase (SOD), catalase and glutathione reductase compared with paraquat group. Carvedilol treatment also significantly reduced the levels of proinflammatory cytokines tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-6, transforming growth factor (TGF)-β1 and monocyte chemoattractant protein (MCP)-1 in the lung tissue. Treatment of mice with carvedilol decreased paraquat-induced expression of nuclear factor kappa B (NF-κB). In addition the plasma levels of matrix metalloproteinase (MMP)-9 and the lung hydroxyproline content significantly reduced by carvedilol treatment. Taken together, these results indicate that carvedilol is able to decrease the severity of paraquat-induced lung injury through inhibition of inflammation and oxidative stress.
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Affiliation(s)
- Keyvan Amirshahrokhi
- Department of Pharmacology, School of Pharmacy, Ardabil University of Medical Sciences, Ardabil, Iran.
| | - Ali-Reza Khalili
- Division of Pathology, Imam Hospital, Ardabil University of Medical Sciences, Ardabil, Iran
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Park HK, Kim SK, Kwon OY, Chung JH, Lee SK. Analysis between nitric oxide synthase 1 (NOS1) and risk of obesity. Mol Cell Toxicol 2016. [DOI: 10.1007/s13273-016-0026-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Poly-ADP-ribose polymerase inhibition provides protection against lung injury in a rat paraquat toxicity model. Inflammopharmacology 2016; 24:155-61. [DOI: 10.1007/s10787-016-0268-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 05/18/2016] [Indexed: 11/25/2022]
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Gu SY, Yeh TY, Lin SY, Peng FC. Unfractionated bone marrow cells attenuate paraquat-induced glomerular injury and acute renal failure by modulating the inflammatory response. Sci Rep 2016; 6:23287. [PMID: 26988026 PMCID: PMC4796871 DOI: 10.1038/srep23287] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Accepted: 03/03/2016] [Indexed: 11/09/2022] Open
Abstract
The aim of this study was to evaluate the efficacy of unfractionated bone marrow cells (BMCs) in attenuating acute kidney injury (AKI) induced by paraquat (PQ) in a mouse model. PQ (55 mg/kg BW) was intraperitoneally injected into C57BL/6 female mice to induce AKI, including renal function failure, glomerular damage and renal tubule injury. Glomerular podocytes were the first target damaged by PQ, which led to glomerular injury. Upon immunofluorescence staining, podocytes depletion was validated and accompanied by increased urinary podocin levels, measured on days 1 and 6. A total of 5.4 × 10(6) BMCs obtained from the same strain of male mice were injected into AKI mice through the tail vein at 3, 24, and 48 hours after PQ administration. As a result, renal function increased, tubular and glomerular injury were ameliorated, podocytes loss improved, and recipient mortality decreased. In addition, BMCs co-treatment decreased the extent of neutrophil infiltration and modulated the inflammatory response by shifting from pro-inflammatory Th1 to an anti-inflammatory Th2 profile, where IL-1β, TNF-α, IL-6 and IFN-γ levels declined and IL-10 and IL-4 levels increased. The present study provides a platform to investigate PQ-induced AKI and repeated BMCs injection represents an efficient therapeutic strategy.
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Affiliation(s)
- Sing-Yi Gu
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ti-Yen Yeh
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shih-Yi Lin
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Fu-Chuo Peng
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei, Taiwan
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Khalighi Z, Rahmani A, Cheraghi J, Ahmadi MRH, Soleimannejad K, Asadollahi R, Asadollahi K. Perfluorocarbon attenuates inflammatory cytokines, oxidative stress and histopathologic changes in paraquat-induced acute lung injury in rats. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 42:9-15. [PMID: 26766533 DOI: 10.1016/j.etap.2015.12.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 12/04/2015] [Accepted: 12/13/2015] [Indexed: 06/05/2023]
Abstract
The effects of perfluorocarbon (PFC) on paraquat (PQ) induced acute lung injury (ALI) was evaluated among rats. Twenty four Wistar rats were divided into 4 groups: control group injected by saline physiologic 0.9%, PFC group injected by Perfluorocarbon, PQ group injected by PQ and PQ+PFC group injected by PFC one hour after receiving paraquat. Bronchoalveular fluid content, inflammatory cytokines, oxidative and histopathologic changes were measured after 72 h. The levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α) and transforming growth factor-β1(TGF-β1) in the PQ group were increased compared to either control or PFC groups, but their levels decreased in PQ+PFC group significantly (p<0.05). Also, histopathologic evaluation revealed an increase in malondialdehyde (MDA) and hydroxyproline (HP) in the PQ group but a decrease in PQ+PFC group significantly (p<0.01). PFC emulsion by its anti-inflammatory, anti-oxidative and anti-fibrotic properties can reduce the inflammatory and fibrotic alterations, pulmonary oedema, and pulmonary histopathologic changes created by PQ.
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Affiliation(s)
- Zahra Khalighi
- Department of Internal Medicine, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Asghar Rahmani
- Student Researches Committee, Ilam University of Medical Sciences, Ilam, Iran
| | - Javad Cheraghi
- Department of Physiology, Faculty of Veterinary, Ilam University, Ilam, Iran
| | | | - Koroush Soleimannejad
- Department of Cardiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Ruhangiz Asadollahi
- Department of Pathology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran
| | - Khairollah Asadollahi
- Department of Epidemiology, Faculty of Medicine, Ilam University of Medical Sciences, Ilam, Iran.
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Diss L, Dyball S, Ghela T, Golding J, Morris R, Robinson S, Tucker R, Walter T, Young P, Allen M, Fidalgo S, Gard P, Mabley J, Patel B, Chatterjee P, Yeoman M. Acute paraquat exposure impairs colonic motility by selectively attenuating nitrergic signalling in the mouse. Auton Neurosci 2016; 195:8-15. [PMID: 26853977 DOI: 10.1016/j.autneu.2016.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 01/06/2023]
Abstract
Paraquat, a common herbicide, is responsible for large numbers of deaths worldwide through both deliberate and accidental ingestion. Previous studies have eluded that the bioavailability of paraquat increases substantially with increasing dose and that these changes may in part be due to the effects that these high concentrations have on the gastrointestinal tract (GI tract). To date, the actions of acute, high concentrations (20mM for 60 min) of paraquat on the GI tract, particularly the colon which is a major site of paraquat absorption, are unknown. This study examined the effects of acute paraquat administration on colonic motility in the C57BL/6 mouse. Acute paraquat exposure decreased colonic motility and the amplitude of colonic migrating motor complexes (CMMCs), which are major motor patterns involved in faecal pellet propulsion. In isolated segments of distal colon, paraquat increased resting tension and markedly attenuated electrical field stimulation-evoked relaxations. Pharmacological dissection of paraquat's mechanism of action on both the CMMCs and field stimulated tissue using the nitric oxide synthase inhibitor NG-nitro-L-arginine and direct measurement of NO release from the myenteric plexus, demonstrated that paraquat selectively attenuates nitrergic signalling pathways. These changes did not appear to be due to alterations in colonic oxidative stress, inflammation or complex 1 activity, but were most likely caused by paraquat's ability to act as a redox couple. In summary, these data demonstrate that acute paraquat exposure attenuates colonic transit. These changes may facilitate the absorption of paraquat into the circulation and so facilitate its toxicity.
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Affiliation(s)
- Lucy Diss
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Sarah Dyball
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Tina Ghela
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Jonathan Golding
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Rachel Morris
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Stephen Robinson
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Rosemary Tucker
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Talia Walter
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Paul Young
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Marcus Allen
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Sara Fidalgo
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Paul Gard
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Jon Mabley
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Bhavik Patel
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Prabal Chatterjee
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK
| | - Mark Yeoman
- School of Pharmacy and Biomolecular Sciences, Huxley Building, College of Life, Health and Physical Sciences, University of Brighton, Brighton, East Sussex BN2 4GJ, UK.
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Díaz S, Martín-González A, Cubas L, Ortega R, Amaro F, Rodríguez-Martín D, Gutiérrez JC. High resistance of Tetrahymena thermophila to paraquat: Mitochondrial alterations, oxidative stress and antioxidant genes expression. CHEMOSPHERE 2016; 144:909-917. [PMID: 26432532 DOI: 10.1016/j.chemosphere.2015.09.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 09/04/2015] [Accepted: 09/05/2015] [Indexed: 06/05/2023]
Affiliation(s)
- Silvia Díaz
- Dpto. Microbiología-III, Facultad de Biología, Universidad Complutense, C/.José Antonio Novais 2, 28040 Madrid, Spain
| | - Ana Martín-González
- Dpto. Microbiología-III, Facultad de Biología, Universidad Complutense, C/.José Antonio Novais 2, 28040 Madrid, Spain
| | - Liliana Cubas
- Dpto. Microbiología-III, Facultad de Biología, Universidad Complutense, C/.José Antonio Novais 2, 28040 Madrid, Spain
| | - Ruth Ortega
- Dpto. Microbiología-III, Facultad de Biología, Universidad Complutense, C/.José Antonio Novais 2, 28040 Madrid, Spain
| | - Francisco Amaro
- Dpto. Microbiología-III, Facultad de Biología, Universidad Complutense, C/.José Antonio Novais 2, 28040 Madrid, Spain
| | - Daniel Rodríguez-Martín
- Dpto. Microbiología-III, Facultad de Biología, Universidad Complutense, C/.José Antonio Novais 2, 28040 Madrid, Spain
| | - Juan-Carlos Gutiérrez
- Dpto. Microbiología-III, Facultad de Biología, Universidad Complutense, C/.José Antonio Novais 2, 28040 Madrid, Spain.
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Ning Z, Bai YL, Lu H, Mo KL. Prognostic value of plasma C-reactive protein in the evaluation of paraquat poisoning patients. Asian Pac J Trop Biomed 2015. [DOI: 10.1016/j.apjtb.2015.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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de Jong K, Vonk JM, Kromhout H, Vermeulen R, Postma DS, Boezen HM. NOS1: a susceptibility gene for reduced level of FEV1 in the setting of pesticide exposure. Am J Respir Crit Care Med 2015; 190:1188-90. [PMID: 25398110 DOI: 10.1164/rccm.201404-0697le] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- K de Jong
- 1 University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC) Groningen, The Netherlands
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Yao R, Zhou Y, He Y, Jiang Y, Liu P, Ye L, Zheng Z, Lau WB, Cao Y, Zeng Z. Adiponectin protects against paraquat-induced lung injury by attenuating oxidative/nitrative stress. Exp Ther Med 2014; 9:131-136. [PMID: 25452788 PMCID: PMC4247297 DOI: 10.3892/etm.2014.2073] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2014] [Accepted: 09/11/2014] [Indexed: 02/05/2023] Open
Abstract
The specific mechanisms underlying paraquat (PQ)-induced lung injury remain unknown, which limits understanding of its cytotoxic potential. Although oxidative stress has been established as an important mechanism underlying PQ toxicity, multiple antioxidants have proven ineffective in attenuating the deleterious effects of PQ. Adiponectin, which shows anti-oxidative and antinitrative effects, may have the potential to reduce PQ-mediated injury. The present study determined the protective action of globular domain adiponectin (gAd) on PQ-induced lung injury, and attempted to elucidate the underlying mechanism or mechanisms of action. BALB/c mice were administered PQ, with and without 12 or 36 h of gAd pre-treatment. The pulmonary oxidative/nitrative status was assessed by measuring pulmonary O2•−, superoxide dismutase (SOD), malondialdehyde (MDA), nitric oxide (NO) and 8-hydroxy-2-dydeoxy guanosine (8-OHdG) production, and blood 3-Nitrotyrosine (3-NT). At a dose of 20 mg/kg, PQ markedly increased O2•−, SOD, MDA, NO and 8-OHdG production 3 h post-administration, but did not significantly increase 3-NT levels until 12 h. gAd inhibited these changes in a dose-dependent manner, via transient activation of MDA, followed by attenuation of MDA formation from 6 h onwards. Histological analysis demonstrated that gAd decreased interstitial edema and inflammatory cell infiltration. These results suggest that gAd protects against PQ-induced lung injury by mitigating oxidative/nitrative stress. Furthermore, gAd may be a potential therapeutic agent for PQ-induced lung injury, and further pharmacological studies are therefore warranted.
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Affiliation(s)
- Rong Yao
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yaxiong Zhou
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yarong He
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yaowen Jiang
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Peng Liu
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Lei Ye
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Zhijie Zheng
- Electrocardiogram Department, No.4 West China Teaching Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Wayne Bond Lau
- Department of Emergency Medicine, Thomas Jefferson University Hospital, Philadelphia, PA 19107, USA
| | - Yu Cao
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Zhi Zeng
- Department of Emergency Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Tyagi N, Kumari A, Dash D, Singh R. Protective effects of intranasal curcumin on paraquot induced acute lung injury (ALI) in mice. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2014; 38:913-921. [PMID: 25461551 DOI: 10.1016/j.etap.2014.10.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Revised: 10/06/2014] [Accepted: 10/10/2014] [Indexed: 06/04/2023]
Abstract
Paraquot (PQ) is widely and commonly used as herbicide and has been reported to be hazardous as it causes lung injury. However, molecular mechanism underlying lung toxicity caused by PQ has not been elucidated. Curcumin, a known anti-inflammatory molecule derived from rhizomes of Curcuma longa has variety of pharmacological activities including free-radical scavenging properties but the protective effects of curcumin on PQ-induced acute lung injury (ALI) have not been studied. In this study, we aimed to study the effects of curcumin on ALI caused by PQ in male parke's strain mice which were challenged acutely by PQ (50mg/kg, i.p.) with or without curcumin an hour before (5mg/kg, i.n.) PQ intoxication. Lung specimens and the bronchoalveolar lavage fluid (BALF) were isolated for pathological and biochemical analysis after 48h of PQ exposure. Curcumin administration has significantly enhanced superoxide dismutase (SOD) and catalase activities. Lung wet/dry weight ratio, malondialdehyde (MDA) and lactate dehydrogenase (LDH) content, total cell number and myeloperoxidase (MPO) levels in BALF as well as neutrophil infiltration were attenuated by curcumin. Pathological studies also revealed that intranasal curcumin alleviate PQ-induced pulmonary damage and pro-inflammatory cytokine levels like tumor necrosis factor-α (TNF-α) and nitric oxide (NO). These results suggest that intranasal curcumin may directly target lungs and curcumin inhalers may prove to be effective in PQ-induced ALI treatment in near future.
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Affiliation(s)
- Namitosh Tyagi
- Department of Zoology, MMV, Banaras Hindu University, Varanasi, 221005, India
| | - Asha Kumari
- Department of Zoology, MMV, Banaras Hindu University, Varanasi, 221005, India
| | - D Dash
- Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi, 221005, India
| | - Rashmi Singh
- Department of Zoology, MMV, Banaras Hindu University, Varanasi, 221005, India.
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Amirshahrokhi K, Bohlooli S. Effect of methylsulfonylmethane on paraquat-induced acute lung and liver injury in mice. Inflammation 2014; 36:1111-21. [PMID: 23595869 DOI: 10.1007/s10753-013-9645-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Methylsulfonylmethane (MSM) is a natural organosulfur compound that exhibits antioxidative and anti-inflammatory effects. This study was carried out to investigate the effect of MSM on paraquat (PQ)-induced acute lung and liver injury in mice. A single dose of PQ (50 mg/kg, i.p.) induced acute lung and liver toxicity. Mice were treated with MSM (500 mg/kg/day, i.p.) for 5 days. At the end of the experiment, animals were euthanized, and lung and liver tissues were collected for histological and biochemical analysis. Tissue samples were used to determine malondialdehyde (MDA), myeloperoxidase (MPO), catalase (CAT), superoxide dismutase (SOD), glutathione (GSH), and tumor necrosis factor-α (TNF-α) levels. Blood samples were used to measure plasma alanine transaminase (ALT), γ-glutamyl transferase (GGT), and alkaline phosphatase (ALP). Histological examination indicated that MSM decreased lung and liver damage caused by PQ. Biochemical results showed that MSM treatment significantly reduced tissue levels of MDA, MPO, and TNF-α, while increased the levels of SOD, CAT, and GSH compared with PQ group. MSM treatment also significantly reduced plasma levels of ALT, GGT, and ALP. These findings suggest that MSM as a natural product attenuates PQ-induced pulmonary and hepatic oxidative injury.
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Affiliation(s)
- Keyvan Amirshahrokhi
- Department of Pharmacology, School of Medicine, Ardabil University of Medical Sciences, P.O. Box 5618953141, Ardabil, Iran,
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Zhang N, Xie YP, Pang L, Zang XX, Wang J, Shi D, Wu Y, Liu XL, Wang GH. Paraquat increases connective tissue growth factor expression and impairs lung fibroblast proliferation and viscoelasticity. Hum Exp Toxicol 2014; 33:1232-40. [PMID: 24556028 DOI: 10.1177/0960327114524239] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This in vitro study was designed to investigate the molecular mechanisms of paraquat-induced damage using cultured human fetal lung fibroblasts (MRC-5 cells), in order to promote the development of improved therapies for paraquat poisoning. Paraquat’s effects on proliferation were examined by flow cytometry, on viscoelasticity by the micropipette aspiration technique, and on connective tissue growth factor (CTGF) expression by real-time polymerase chain reaction and enzyme-linked immunosorbent assay. Paraquat was found to significantly reduce the proliferation index of MRC-5 cells in a concentration-dependent manner ( p < 0.05) and to significantly impair the viscoelastic properties in a time-independent manner ( p < 0.05). Exposure to paraquat led to a significant and time-dependent increase in CTGF expression ( p < 0.05) and induced changes in the morphology and biomechanical characteristics of the MRC-5 cells. These findings not only provide novel insights into the mechanisms of paraquat-induced lung fibrosis but may represent useful targets of improved molecular-based therapies for paraquat poisoning.
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Affiliation(s)
- N Zhang
- Department of Emergency Medicine, The First Hospital of Jilin University, China
| | - Y-P Xie
- Department of Emergency Medicine, Lianyungang Hospital Affiliated to Xuzhou Medical College, China
| | - L Pang
- Department of Emergency Medicine, The First Hospital of Jilin University, China
| | - X-X Zang
- Department of Emergency Medicine, The First Hospital of Jilin University, China
| | - J Wang
- Department of Gastrointestinal Medicine, The First Hospital of Jilin University, China
| | - D Shi
- Department of Emergency Medicine, Jilin Traditional Chinese Medical College, China
| | - Y Wu
- Department of Emergency Medicine, The First Hospital of Jilin University, China
| | - X-L Liu
- Department of Emergency Medicine, The First Hospital of Jilin University, China
| | - G-H Wang
- Pharmacy and Biological Science College, Weifang Medical University, China
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Dos Santos GA, Kats L, Pandolfi PP. Synergy against PML-RARa: targeting transcription, proteolysis, differentiation, and self-renewal in acute promyelocytic leukemia. ACTA ACUST UNITED AC 2014; 210:2793-802. [PMID: 24344243 PMCID: PMC3865469 DOI: 10.1084/jem.20131121] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Pandolfi et al. provide an in-depth discussion on the synergism between all-trans-retinoic acid and arsenic trioxide treatment and their mechanisms of action on acute promyelocytic leukemia. Acute promyelocytic leukemia (APL) is a hematological malignancy driven by a chimeric oncoprotein containing the C terminus of the retinoic acid receptor-a (RARa) fused to an N-terminal partner, most commonly promyelocytic leukemia protein (PML). Mechanistically, PML-RARa acts as a transcriptional repressor of RARa and non-RARa target genes and antagonizes the formation and function of PML nuclear bodies that regulate numerous signaling pathways. The empirical discoveries that PML-RARa–associated APL is sensitive to both all-trans-retinoic acid (ATRA) and arsenic trioxide (ATO), and the subsequent understanding of the mechanisms of action of these drugs, have led to efforts to understand the contribution of molecular events to APL cell differentiation, leukemia-initiating cell (LIC) clearance, and disease eradication in vitro and in vivo. Critically, the mechanistic insights gleaned from these studies have resulted not only in a better understanding of APL itself, but also carry valuable lessons for other malignancies.
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Affiliation(s)
- Guilherme Augusto Dos Santos
- Cancer Genetics Program, Beth Israel Deaconess Cancer Center; and 2 Department of Medicine and 3 Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215
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Choi SC, Oh S, Min YG, Cha JY, Gil HW, Hong SY. Evaluation of exhaled nitric oxide in acute paraquat poisoning: a pilot study. Med Sci Monit 2014; 20:167-72. [PMID: 24487780 PMCID: PMC3914929 DOI: 10.12659/msm.889820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Fractional exhaled nitric oxide (FENO) is nitric oxide (NO) in the lower airway measured by oral exhalation. FENO can be a useful non-invasive marker for asthma. Paraquat-mediated lung injury can be reflective of an ROS-induced lung injury. We aimed to verify if FENO is a clinical parameter of ROS formation and responsiveness to medical therapies in acute paraquat intoxication. MATERIAL AND METHODS We recruited 12 patients admitted with acute paraquat poisoning. A portable and noninvasive device called NIOX MINO™ (Aerocrine AB, Solna, Sweden) was used to measure FENO. Measurements were made at the time of hospital admission and at 24, 48, 72, 96, and 120 h after paraquat ingestion. RESULTS Six out of the total 12 recruited patients had general conditions (e.g. oral pain) that made it difficult for them to exhale with adequate force. Mean plasma paraquat level was 1.4 ± 2.5 g/mL. We found no direct correlation between the paraquat levels (both ingestion amount and plasma concentration) and FENO (initial, maximal, and minimal values). All the measured FENO values were no greater than 20 ppb for the 2 patients who died. FENO did not vary more than 20% from the baseline. Compared to the above findings, FENO measurements were found to be greater than 20 ppb for the patients who survived. FENO tends to reach its peak value at between 50 h and 80 h. CONCLUSIONS FENO did not predict mortality, and there was no increase of FENO in patients with severe paraquat intoxication.
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Affiliation(s)
- Sang-cheon Choi
- Department of Emergency Medicine, Ajou University School of Medicine, Suwon, Korea
| | - Sungho Oh
- Daegu Research Center for Medical Device and Green Energy, Korea Institute of Machinery and Materials, Daegu, Korea
| | - Young-gi Min
- Department of Emergency Medicine, Ajou University School of Medicine, Suwon, Korea
| | - Ju Young Cha
- Daegu Research Center for Medical Device and Green Energy, Korea Institute of Machinery and Materials, Daegu, Korea
| | - Hyo-Wook Gil
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Sae-yong Hong
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
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Szulc A, Zablocka M, Coppel Y, Bijani C, Dabkowski W, Bryszewska M, Klajnert-Maculewicz B, Majoral JP. A viologen phosphorus dendritic molecule as a carrier of ATP and Mant-ATP: spectrofluorimetric and NMR studies. NEW J CHEM 2014. [DOI: 10.1039/c4nj01176g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A viologen phosphorus dendritic molecule is able to create non-covalent interactions with model molecules of drugs belonging to the group of nucleoside analogues.
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Affiliation(s)
- Aleksandra Szulc
- Department of General Biophysics
- University of Lodz
- 90-236 Lodz, Poland
| | - Maria Zablocka
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Lodz, Poland
| | - Yannick Coppel
- Laboratoire de Chimie de Coordination du CNRS (LCC)
- F-31077 Toulouse cedex 4, France
| | - Christian Bijani
- Laboratoire de Chimie de Coordination du CNRS (LCC)
- F-31077 Toulouse cedex 4, France
| | - Wojciech Dabkowski
- Centre of Molecular and Macromolecular Studies
- Polish Academy of Sciences
- 90-363 Lodz, Poland
| | - Maria Bryszewska
- Department of General Biophysics
- University of Lodz
- 90-236 Lodz, Poland
| | | | - Jean-Pierre Majoral
- Laboratoire de Chimie de Coordination du CNRS (LCC)
- F-31077 Toulouse cedex 4, France
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Isogenic human iPSC Parkinson's model shows nitrosative stress-induced dysfunction in MEF2-PGC1α transcription. Cell 2013; 155:1351-64. [PMID: 24290359 DOI: 10.1016/j.cell.2013.11.009] [Citation(s) in RCA: 343] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2013] [Revised: 08/11/2013] [Accepted: 11/04/2013] [Indexed: 01/16/2023]
Abstract
Parkinson's disease (PD) is characterized by loss of A9 dopaminergic (DA) neurons in the substantia nigra pars compacta (SNpc). An association has been reported between PD and exposure to mitochondrial toxins, including environmental pesticides paraquat, maneb, and rotenone. Here, using a robust, patient-derived stem cell model of PD allowing comparison of A53T α-synuclein (α-syn) mutant cells and isogenic mutation-corrected controls, we identify mitochondrial toxin-induced perturbations in A53T α-syn A9 DA neurons (hNs). We report a pathway whereby basal and toxin-induced nitrosative/oxidative stress results in S-nitrosylation of transcription factor MEF2C in A53T hNs compared to corrected controls. This redox reaction inhibits the MEF2C-PGC1α transcriptional network, contributing to mitochondrial dysfunction and apoptotic cell death. Our data provide mechanistic insight into gene-environmental interaction (GxE) in the pathogenesis of PD. Furthermore, using small-molecule high-throughput screening, we identify the MEF2C-PGC1α pathway as a therapeutic target to combat PD.
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Cataldi M, Sblendorio V, Leo A, Piazza O. Biofilm-dependent airway infections: a role for ambroxol? Pulm Pharmacol Ther 2013; 28:98-108. [PMID: 24252805 DOI: 10.1016/j.pupt.2013.11.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 10/31/2013] [Accepted: 11/11/2013] [Indexed: 11/16/2022]
Abstract
Biofilms are a key factor in the development of both acute and chronic airway infections. Their relevance is well established in ventilator associated pneumonia, one of the most severe complications in critically ill patients, and in cystic fibrosis, the most common lethal genetic disease in Caucasians. Accumulating evidence suggests that biofilms could have also a role in chronic obstructive pulmonary disease and their involvement in bronchiectasis has been proposed as well. When they grow in biofilms, microorganisms become multidrug-resistant. Therefore the treatment of biofilm-dependent airway infections is problematic. Indeed, it still largely based on measures aiming to prevent the formation of biofilms or remove them once that they are formed. Here we review recent evidence suggesting that the mucokinetic drug ambroxol has specific anti-biofilm properties. We also discuss how additional pharmacological properties of this drug could be beneficial in biofilm-dependent airway infections. Specifically, we review the evidence showing that: 1-ambroxol exerts anti-inflammatory effects by inhibiting at multiple levels the activity of neutrophils, and 2-it improves mucociliary clearance by interfering with the activity of airway epithelium ion channels and transporters including sodium/bicarbonate and sodium/potassium/chloride cotransporters, cystic fibrosis transmembrane conductance regulator and aquaporins. As a whole, the data that we review here suggest that ambroxol could be helpful in biofilm-dependent airway infections. However, considering the limited clinical evidence available up to date, further clinical studies are required to support the use of ambroxol in these diseases.
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Affiliation(s)
- M Cataldi
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, Federico II University of Naples, Via Pansini 5, 80131 Napoli, Italy.
| | - V Sblendorio
- Division of Pharmacology, Department of Neuroscience, Reproductive and Odontostomatologic Sciences, Federico II University of Naples, Via Pansini 5, 80131 Napoli, Italy
| | - A Leo
- Department of Health Sciences, University Magna Græcia of Catanzaro, University Campus "Salvatore Venuta", Viale Europa, I-88100 Catanzaro, Italy
| | - O Piazza
- University of Salerno, Via Allende, 84081 Baronissi, Italy
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Anti-inflammatory effect of thalidomide in paraquat-induced pulmonary injury in mice. Int Immunopharmacol 2013; 17:210-5. [DOI: 10.1016/j.intimp.2013.06.005] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Revised: 05/23/2013] [Accepted: 06/03/2013] [Indexed: 11/22/2022]
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Aires RD, Capettini LSA, Silva JF, Rodrigues-Machado MDG, Pinho V, Teixeira MM, Cortes SF, Lemos VS. Paraquat poisoning induces TNF-α-dependent iNOS/NO mediated hyporesponsiveness of the aorta to vasoconstrictors in rats. PLoS One 2013; 8:e73562. [PMID: 24039983 PMCID: PMC3767802 DOI: 10.1371/journal.pone.0073562] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 07/19/2013] [Indexed: 02/07/2023] Open
Abstract
Paraquat is a toxic herbicide that may induce acute lung injury, circulatory failure and death. The present work aimed at investigating whether there is systemic inflammation and vascular dysfunction after paraquat exposure and whether these parameters were related. There was neutrophilia and accumulation of neutrophils in lung and bronchoalveolar lavage of animals given paraquat. This was associated with an increase in serum levels of TNF-α. In rats given paraquat, the relaxant response of aortic rings to acetylcholine was not modified but the contractile response to phenylephrine was greatly reduced. Endothelium removal or treatment with non-selective (L-NAME) or selective (L-NIL) inhibitors of inducible nitric oxide synthase (iNOS) restored contraction of aortas. There was greater production of nitric oxide (NO), which was restored to basal level by L-NIL, and greater expression of iNOS in endothelial cells, as seen by Western blot analyses and confocal microscopy. Blockade of TNF-α reduced pulmonary and systemic inflammation and vascular dysfunction. Together, our results clearly show that paraquat causes pulmonary and systemic inflammation, and vascular dysfunction in rats. Vascular dysfunction is TNF-α dependent, associated with enhanced expression of iNOS in aortic endothelial cells and greater NO production, which accounts for the decreased responsiveness of aortas to vasoconstrictors. Blockers of TNF-α may be useful in patients with paraquat poisoning.
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Affiliation(s)
- Rosária D. Aires
- Department of Physiology and Biophysics, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Luciano S. A. Capettini
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Josiane F. Silva
- Department of Physiology and Biophysics, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Vanessa Pinho
- Department of Morphology, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mauro M. Teixeira
- Department of Biochemistry and Immunology, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Steyner F. Cortes
- Department of Pharmacology, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Virginia S. Lemos
- Department of Physiology and Biophysics, ICB, Federal University of Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Tsai HL, Chang JW, Yang HW, Chen CW, Yang CC, Yang AH, Liu CS, Chin TW, Wei CF, Lee OK. Amelioration of Paraquat-Induced Pulmonary Injury by Mesenchymal Stem Cells. Cell Transplant 2013; 22:1667-81. [DOI: 10.3727/096368912x657765] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Acute paraquat (PQ) poisoning induces redox cycle and leads to fatal injury of lung. Clinical management is supportive in nature due to lack of effective antidote, and the mortality is very high. Mesenchymal stem cells (MSCs) process the properties of immunomodulation, anti-inflammatory, and antifibrotic effects and oxidative stress resistance. MSC transplantation may theoretically serve as an antidote in PQ intoxication. In this study, we examined the potential therapeutic effects of MSCs in PQ-induced lung injury. The degree of PQ toxicity in the rat type II pneumocyte cell line, L2, and MSCs was evaluated by examining cell viability, ultrastructural changes, and gene expression. L2 cells treated with 0.5 mM PQ were cocultured in the absence or presence of MSCs. For the in vivo study, adult male SD rats were administered an intraperitoneal injection of PQ (24 mg/kg body weight) and were divided into three groups: group I, control; group II, cyclophosphamide and methylprednisolone; group III, MSC transplantation 6 h after PQ exposure. MSCs were relatively resistant to PQ toxicity. Coculture with MSCs significantly inhibited PQ accumulation in L2 cells and upregulated the expression of antioxidative heme oxygenase 1 and metallothionein 1a genes, reversed epithelial-to-mesenchymal transition, and increased the viability of PQ-exposed L2 cells. Treatment with MSCs resulted in a significant reduction in severity of liver and renal function deterioration, alleviated lung injury, and prolonged the life span of rats. Altogether, our results suggest that MSCs possess antidote-like effect through multifactorial protection mechanism. The results of this preclinical study demonstrate that transplantation of MSCs may be a promising therapy and should be further validated clinically.
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Affiliation(s)
- Hsin-Lin Tsai
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Division of Pediatric Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jei-Wen Chang
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hui-Wen Yang
- Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chang-Wei Chen
- Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chen-Chang Yang
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Environmental and Occupational Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Division of Clinical Toxicology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - An-Hang Yang
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Division of Ultrastructural and Molecular Pathology, Department of Pathology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chin-Su Liu
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Division of Pediatric Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Tai-Wai Chin
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Division of Pediatric Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chou-Fu Wei
- Department of Surgery, Taipei Medical University Hospital, Taipei, Taiwan
| | - Oscar K. Lee
- Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
- Stem Cell Research Center, National Yang-Ming University, Taipei, Taiwan
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Rodriguez M, Snoek LB, De Bono M, Kammenga JE. Worms under stress: C. elegans stress response and its relevance to complex human disease and aging. Trends Genet 2013; 29:367-74. [PMID: 23428113 DOI: 10.1016/j.tig.2013.01.010] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Revised: 01/14/2013] [Accepted: 01/25/2013] [Indexed: 12/24/2022]
Abstract
Many organisms have stress response pathways, components of which share homology with players in complex human disease pathways. Research on stress response in the nematode worm Caenorhabditis elegans has provided detailed insights into the genetic and molecular mechanisms underlying complex human diseases. In this review we focus on four different types of environmental stress responses - heat shock, oxidative stress, hypoxia, and osmotic stress - and on how these can be used to study the genetics of complex human diseases. All four types of responses involve the genetic machineries that underlie a number of complex human diseases such as cancer and neurodegenerative diseases, including Alzheimer's and Parkinson's. We highlight the types of stress response experiments required to detect the genes and pathways underlying human disease and suggest that studying stress biology in worms can be translated to understanding human disease and provide potential targets for drug discovery.
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Affiliation(s)
- Miriam Rodriguez
- Laboratory of Nematology, Wageningen University, 6708 PD, Wageningen, The Netherlands
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Loss of Neil3, the major DNA glycosylase activity for removal of hydantoins in single stranded DNA, reduces cellular proliferation and sensitizes cells to genotoxic stress. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:1157-64. [PMID: 23305905 DOI: 10.1016/j.bbamcr.2012.12.024] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2012] [Revised: 12/13/2012] [Accepted: 12/26/2012] [Indexed: 11/21/2022]
Abstract
7,8-Dihydro-8-oxoguanine (8-oxoG) is one of the most common oxidative base lesions in normal tissues induced by a variety of endogenous and exogenous agents. Hydantoins are products of 8-oxoG oxidation and as 8-oxoG, they have been shown to be mutagenic lesions. Oxidative DNA damage has been implicated in the etiology of various age-associated pathologies, such as cancer, cardiovascular diseases, arthritis, and several neurodegenerative diseases. The mammalian endonuclease VIII-like 3 (Neil3) is one of the four DNA glycosylases found to recognize and remove hydantoins in the first step of base excision repair (BER) pathway. We have generated mice lacking Neil3 and by using total cell extracts we demonstrate that Neil3 is the main DNA glycosylase that incises hydantoins in single stranded DNA in tissues. Using the neurosphere culture system as a model to study neural stem/progenitor (NSPC) cells we found that lack of Neil3 impaired self renewal but did not affect differentiation capacity. Proliferation was also reduced in mouse embryonic fibroblasts (MEFs) derived from Neil3(-/-) embryos and these cells were sensitive to both the oxidative toxicant paraquat and interstrand cross-link (ICL)-inducing agent cisplatin. Our data support the involvement of Neil3 in removal of replication blocks in proliferating cells.
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An N-myristoylated globin with a redox-sensing function that regulates the defecation cycle in Caenorhabditis elegans. PLoS One 2012; 7:e48768. [PMID: 23251335 PMCID: PMC3520999 DOI: 10.1371/journal.pone.0048768] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Accepted: 10/04/2012] [Indexed: 01/17/2023] Open
Abstract
Globins occur in all kingdoms of life where they fulfill a wide variety of functions. In the past they used to be primarily characterized as oxygen transport/storage proteins, but since the discovery of new members of the globin family like neuroglobin and cytoglobin, more diverse and complex functions have been assigned to this heterogeneous family. Here we propose a function for a membrane-bound globin of C. elegans, GLB-26. This globin was predicted to be myristoylated at its N-terminus, a post-translational modification only recently described in the globin family. In vivo, this globin is found in the membrane of the head mesodermal cell and in the tail stomato-intestinal and anal depressor muscle cells. Since GLB-26 is almost directly oxidized when exposed to oxygen, we postulate a possible function as electron transfer protein. Phenotypical studies show that GLB-26 takes part in regulating the length of the defecation cycle in C. elegans under oxidative stress conditions.
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Ahmad I, Shukla S, Kumar A, Singh BK, Kumar V, Chauhan AK, Singh D, Pandey HP, Singh C. Biochemical and molecular mechanisms of N-acetyl cysteine and silymarin-mediated protection against maneb- and paraquat-induced hepatotoxicity in rats. Chem Biol Interact 2012; 201:9-18. [PMID: 23159886 DOI: 10.1016/j.cbi.2012.10.027] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 10/09/2012] [Accepted: 10/28/2012] [Indexed: 12/22/2022]
Abstract
Oxidative stress is one of the major players in the pathogenesis of maneb (MB) and paraquat (PQ)-induced disorders. N-acetyl cysteine (NAC), a glutathione (GSH) precursor and silymarin (SIL), a naturally occurring antioxidant, encounter oxidative stress-mediated cellular damage. The present study was aimed to investigate the effects of NAC and SIL against MB and/or PQ-induced hepatotoxicity in rats. The levels of hepatotoxicity markers - alanine aminotransaminase (ALT), aspartate aminotransaminase (AST) and total bilirubin, histological changes, oxidative stress indices, phase I and phase II xenobiotic metabolizing enzymes - cytochrome P450 (CYP) and glutathione S-transferase (GST) and pro-inflammatory molecules - inducible nitric oxide synthase (iNOS), tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were measured in animals treated with MB and/or PQ in the presence or absence of NAC and SIL. MB and/or PQ augmented ALT, AST, total bilirubin, lipid peroxidation and nitrite contents and catalytic activities of superoxide dismutase and glutathione peroxidase however, the GSH content was attenuated. NAC and SIL restored the above-mentioned alterations towards basal levels but the restorations were more pronounced in SIL treated groups. Similarly, MB and/or PQ-mediated histopathological symptoms and changes in the catalytic activities/expressions of CYP1A2, CYP2E1, iNOS, TNF-α, and IL-1β were alleviated by NAC and SIL. Conversely, MB and/or PQ-induced GSTA4-4 expression/activity was further increased by NAC/SIL and glutathione reductase activity was also increased. The results obtained thus suggest that NAC and SIL protect MB and/or PQ-induced hepatotoxicity by reducing oxidative stress, inflammation and by modulating xenobitic metabolizing machinery and SIL seems to be more effective.
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Affiliation(s)
- Israr Ahmad
- CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Lucknow 226 001, India
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49
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Differential responses of hydrogen peroxide, lipid peroxidation and antioxidant enzymes in Azolla microphylla exposed to paraquat and nitric oxide. Biologia (Bratisl) 2012. [DOI: 10.2478/s11756-012-0110-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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50
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Zielonka J, Sikora A, Hardy M, Joseph J, Dranka BP, Kalyanaraman B. Boronate probes as diagnostic tools for real time monitoring of peroxynitrite and hydroperoxides. Chem Res Toxicol 2012; 25:1793-9. [PMID: 22731669 DOI: 10.1021/tx300164j] [Citation(s) in RCA: 173] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Boronates, a group of organic compounds, are emerging as one of the most effective probes for detecting and quantifying peroxynitrite, hypochlorous acid, and hydrogen peroxide. Boronates react with peroxynitrite nearly a million times faster than with hydrogen peroxide. Boronate-containing fluorogenic compounds have been used to monitor real time generation of peroxynitrite in cells and for imaging hydrogen peroxide in living animals. This perspective highlights potential applications of boronates and other fluorescent probes to high-throughput analyses of peroxynitrite and hydroperoxides in toxicological studies.
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Affiliation(s)
- Jacek Zielonka
- Department of Biophysics, Free Radical Research Center, Medical College of Wisconsin, Milwaukee, WI 53226, USA
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