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Akbas E, Unal F, Yuzbasioglu D. Genotoxic effects of gadobutrol and gadoversetamide active substances used in magnetic resonance imaging in human peripheral lymphocytes in vitro. Drug Chem Toxicol 2022; 45:2471-2482. [PMID: 35184618 DOI: 10.1080/01480545.2021.1957913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Gadobutrol and gadoversetamide are gadolinium-based contrast agents (GBCAs) widely used during magnetic resonance imaging examination. In this study, the genotoxicity of two GBCAs, gadobutrol and gadoversetamide, was investigated by using different endpoints: chromosome aberration (CAs), sister chromatid exchange (SCEs), and micronucleus (MNi). Human peripheral lymphocytes (PBLs) were treated with five concentrations (7 000, 14 000, 28 000, 56 000, and 112 000 μg/mL) of both agents. While a few concentrations of gadobutrol significantly increased abnormal cell frequency and CA/Cell, nearly all the concentrations of gadoversetamide significantly elevated the same aberrations. Similarly, the effect of gadoversetamide on the formation of SCEs was higher than those of gadobutrol. Only one concentration of gadoversetamide significantly increased MN% but no gadobutrol. The comet assay was applied for the only gadobutrol which induced a significant increase in tail intensity at the highest concentration only. On the other hand, significantly decreased mitotic index (MI) was observed following both substances, again gadoversetamide was slightly higher than those of the gadobutrol. The results revealed that both the contrast agents are likely to induce genotoxic risk in PBLs. However, different concentrations and treatment periods should be examined in vitro and specifically in vivo with different test systems for the safer usage of these contrast agents.
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Affiliation(s)
- Ece Akbas
- Genetic Toxicology Laboratory, Department of Biology, Science Faculty, Gazi University, 06560, Ankara, Turkey
| | - Fatma Unal
- Genetic Toxicology Laboratory, Department of Biology, Science Faculty, Gazi University, 06560, Ankara, Turkey
| | - Deniz Yuzbasioglu
- Genetic Toxicology Laboratory, Department of Biology, Science Faculty, Gazi University, 06560, Ankara, Turkey
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Qureshi S, Ali G, Idrees M, Muhammad T, Kong IK, Abbas M, Shah MIA, Ahmad S, Sewell RDE, Ullah S. Selected Thiadiazine-Thione Derivatives Attenuate Neuroinflammation in Chronic Constriction Injury Induced Neuropathy. Front Mol Neurosci 2021; 14:728128. [PMID: 34975395 PMCID: PMC8716630 DOI: 10.3389/fnmol.2021.728128] [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: 06/20/2021] [Accepted: 11/17/2021] [Indexed: 11/13/2022] Open
Abstract
Neuropathic pain refers to a lesion or disease of peripheral and/or central somatosensory neurons and is an important body response to actual or potential nerve damage. We investigated the therapeutic potential of two thiadiazine-thione [TDT] derivatives, 2-(5-propyl-6-thioxo-1, 3, 5-thiadiazinan-3-yl) acetic acid [TDT1] and 2-(5-propyl-2-thioxo-1, 3, 5-thiadiazinan-3-yl) acetic acid [TDT2] against CCI (chronic constriction injury)-induced neuroinflammation and neuropathic pain. Mice were used for assessment of acute toxicity of TDT derivatives and no major toxic/bizarre responses were observed. Anti-inflammatory activity was assessed using the carrageenan test, and both TDT1 and TDT2 significantly reduced carrageenan-induced inflammation. We also used rats for the induction of CCI and performed allodynia and hyperalgesia-related behavioral tests followed by biochemical and morphological analysis using RT-qPCR, immunoblotting, immunohistochemistry and immunofluorescence. Our findings revealed that CCI induced clear-cut allodynia and hyperalgesia which was reversed by TDT1 and TDT2. To determine the function of TDT1 and TDT2 in glia-mediated neuroinflammation, Iba1 mRNA and protein levels were measured in spinal cord tissue sections from various experimental groups. Interestingly, TDT1 and TDT2 substantially reduced the mRNA expression and protein level of Iba1, implying that TDT1 and TDT2 may mitigate CCI-induced astrogliosis. In silico molecular docking studies predicted that both compounds had an effective binding affinity for TNF-α and COX-2. The compounds interactions with the proteins were dominated by both hydrogen bonding and van der Waals interactions. Overall, these results suggest that TDT1 and TDT2 exert their neuroprotective and analgesic potentials by ameliorating CCI-induced allodynia, hyperalgesia, neuroinflammation and neuronal degeneration in a dose-dependent manner.
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Affiliation(s)
- Sonia Qureshi
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
| | - Gowhar Ali
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
- Laboratory of Neurogenomics and Novel Therapies, The Ken and Ruth Davee Department of Neurology, Department of Neurology and Clinical Neurosciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States
| | - Muhammad Idrees
- Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju, South Korea
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, South Korea
| | - Tahir Muhammad
- Molecular Neuropsychiatry and Development (MiND) Lab, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Il-Keun Kong
- Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju, South Korea
- Institute of Agriculture and Life Science, Gyeongsang National University, Jinju, South Korea
- The Kingkong Co., Ltd., Gyeongsang National University, Jinju, South Korea
| | - Muzaffar Abbas
- Faculty of Pharmacy, Capital University of Science & Technology, Islamabad, Pakistan
| | | | - Sajjad Ahmad
- Department of Health and Biological Sciences, Abasyn University, Peshawar, Pakistan
| | - Robert D. E. Sewell
- School of Pharmacy and Pharmaceutical Sciences, Cardiff University, Cardiff, United Kingdom
| | - Sami Ullah
- Department of Pharmacy, University of Peshawar, Peshawar, Pakistan
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