1
|
Rousar T, Handl J, Capek J, Nyvltova P, Rousarova E, Kubat M, Smid L, Vanova J, Malinak D, Musilek K, Cesla P. Cysteine conjugates of acetaminophen and p-aminophenol are potent inducers of cellular impairment in human proximal tubular kidney HK-2 cells. Arch Toxicol 2023; 97:2943-2954. [PMID: 37639014 PMCID: PMC10504157 DOI: 10.1007/s00204-023-03569-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/02/2023] [Indexed: 08/29/2023]
Abstract
Acetaminophen (APAP) belong among the most used analgesics and antipyretics. It is structurally derived from p-aminophenol (PAP), a potent inducer of kidney toxicity. Both compounds can be metabolized to oxidation products and conjugated with glutathione. The glutathione-conjugates can be cleaved to provide cysteine conjugates considered as generally nontoxic. The aim of the present report was to synthesize and to purify both APAP- and PAP-cysteine conjugates and, as the first study at all, to evaluate their biological effects in human kidney HK-2 cells in comparison to parent compounds. HK-2 cells were treated with tested compounds (0-1000 µM) for up to 24 h. Cell viability, glutathione levels, ROS production and mitochondrial function were determined. After 24 h, we found that both APAP- and PAP-cysteine conjugates (1 mM) were capable to induce harmful cellular damage observed as a decrease of glutathione levels to 10% and 0%, respectively, compared to control cells. In addition, we detected the disappearance of mitochondrial membrane potential in these cells. In the case of PAP-cysteine, the extent of cellular impairment was comparable to that induced by PAP at similar doses. On the other hand, 1 mM APAP-cysteine induced even larger damage of HK-2 cells compared to 1 mM APAP after 6 or 24 h. We conclude that cysteine conjugates with aminophenol are potent inducers of oxidative stress causing significant injury in kidney cells. Thus, the harmful effects cysteine-aminophenolic conjugates ought to be considered in the description of APAP or PAP toxicity.
Collapse
Affiliation(s)
- Tomas Rousar
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic.
| | - Jiri Handl
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic
| | - Jan Capek
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic
| | - Pavlina Nyvltova
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic
| | - Erika Rousarova
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic
| | - Miroslav Kubat
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic
| | - Lenka Smid
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic
| | - Jana Vanova
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic
| | - David Malinak
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic
| | - Kamil Musilek
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 500 03, Hradec Kralove, Czech Republic
| | - Petr Cesla
- Department of Analytical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentska 95, 532 10, Pardubice, Czech Republic
| |
Collapse
|
2
|
Li Z, Deng H, Guo X, Yan S, Lu C, Zhao Z, Feng X, Li Q, Wang J, Zeng J, Ma X. Effective dose/duration of natural flavonoid quercetin for treatment of diabetic nephropathy: A systematic review and meta-analysis of rodent data. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 105:154348. [PMID: 35908521 DOI: 10.1016/j.phymed.2022.154348] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/29/2022] [Accepted: 07/17/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Given the challenges on diabetic nephropathy (DN) treatment, research has been carried out progressively focusing on dietary nutrition and natural products as a novel option with the objective of enhancing curative effect and avoiding adverse reactions. As a representative, Quercetin (Qu) has proved to be of great value in current data. PURPOSE We aimed to synthetize the evidence regarding the therapeutic effect and specific mechanism of quercetin on DN via systematically reviewing and performing meta-analysis. METHODS Preclinical literature published prior to August 2021, was systematical retrieval and manually filtrated across four major databases including PubMed, Web of Science, EMBASE and Cochrane library. Pooled overall effect sizes of results were generated by STATA 16.0, and underlying mechanisms were summarized. Three-dimensional dose/time-effect analyses and radar maps were conducted to examine the dosage/time-response relations between Qu and DN. RESULTS This paper pools all current available evidence in a comprehensive way, and shows the therapeutic benefits as well as potential action mechanisms of Qu in protecting the kidney against damage. A total of 304 potentially relevant citations were identified, of which 18 studies were enrolled into analysis. Methodological quality was calculated, resulting in an average score of 7.06/10. This paper provided the preliminary evidence that consumption of Qu could induce a statistical reduction in mesangial index, Scr, BUN, 24-h urinary protein, serum urea, BG, kidney index, TC, TG, LDL-C, AST, MDA, AGE, TNF-α, TGF-β1, TGF-β1 mRNA, CTGF and IL-1β, whereas HDL-C, SOD, GSH, GSH-Px, CAT and smad-7 were significantly increased. Furthermore, Qu could remarkably improve the renal pathology. In terms of the mechanisms underlying therapy of DN, Qu exerts anti-diabetic nephropathy properties possibly through PI3K/PKB, AMPK-P38 MAPK, SCAP/SREBP2/LDLr, mtROS-TRX/TXNIP/NLRP3/IL-1β, TGF-β1/Smad, Nrf2/HO-1, Hippo, mTORC1/p70S6K and SHH pathways. Dose/time-response images predicted a modest association between Qu dosage consumption/administration length and therapeutic efficacy, with the optimal dosage at 90-150 mg/kg/d and administration length ranging from 8 weeks to 12 weeks. CONCLUSIONS Quercetin exhibit highly pleiotropic actions, which simultaneously contributes to prevent fundamental progression of DN, such as hyperglycemia, dyslipidemia, inflammation, fibrotic lesions and oxidative stress. The therapeutic effect becomes stronger when Qu administration at higher dosages lasts for longer durations. Taken together, quercetin could be used in patients with DN as a promising agent, which has well-established safety profiles and nontoxicity according to existing literature.
Collapse
Affiliation(s)
- Ziyu Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Haichuan Deng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Xiaochuan Guo
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Sining Yan
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Chaorui Lu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Zewei Zhao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Xinyu Feng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Qihong Li
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Jiayi Wang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China; School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - Jinhao Zeng
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, China.
| | - Xiao Ma
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
| |
Collapse
|
3
|
Vanova J, Malinak D, Andrys R, Kubat M, Mikysek T, Rousarova E, Musilek K, Rousar T, Cesla P. Optimization of Gradient Reversed Phase High Performance Liquid Chromatography Analysis of Acetaminophen Oxidation Metabolites using Linear and Non-linear Retention Model. J Chromatogr A 2022; 1669:462956. [DOI: 10.1016/j.chroma.2022.462956] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/28/2022] [Accepted: 03/09/2022] [Indexed: 11/15/2022]
|
4
|
Nogueira AF, Nunes B. Effects of paracetamol on the polychaete Hediste diversicolor: occurrence of oxidative stress, cyclooxygenase inhibition and behavioural alterations. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:26772-26783. [PMID: 33496946 DOI: 10.1007/s11356-020-12046-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Pharmaceuticals are significant environmental stressors, since they are utilized around the world; they are usually released in to the aquatic system without adequate treatment and several non-target species can be harmed because of their intrinsic properties. Paracetamol is one of the most widely prescribed analgesics in human medical care. Consequently, this compound is systematically reported to occur in the wild, where it may exert toxic effects on non-target species, which are mostly uncharacterized so far. The objective of the present work was to assess the acute (control, 5, 25, 125, 625 and 3125 μg/L) and chronic (control, 5, 10, 20, 40 and 80 μg/L) effects of paracetamol on behavioural endpoints, as well as on selected oxidative stress biomarkers [superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GRed)] and the anti-inflammatory activity biomarker cyclooxygenase (COX), in the polychaete Hediste diversicolor (Annelida: Polychaeta). Exposure to paracetamol caused effects on behavioural traits, with increased burrowing time (96 h) and hypoactivity (28 days). In addition, exposure to paracetamol resulted also in significant increases of SOD activity, but only for intermediate levels of exposure, but for both acute and chronic exposures. Both forms of GPx had their activities significantly increased, especially after chronic exposure. Acutely exposed organisms had their GRed significantly decreased, while chronically exposed worms had their GRed activity augmented only for the lowest tested concentrations. Effects were also observed in terms of COX activity, showing that paracetamol absorption occurred and caused an inhibition of COX activity in both exposure regimes. It is possible to conclude that the exposure to concentrations of paracetamol close to the ones in the environment may be deleterious to marine ecosystems, endangering marine life by changing their overall redox balance, and the biochemical control of inflammatory intermediaries. Behaviour was also modified and the burrowing capacity was adversely affected. This set of effects clearly demonstrate that paracetamol exposure, under realistic conditions, it not exempt of adverse effects on marine invertebrates, such as polychaetes.
Collapse
Affiliation(s)
- Ana Filipa Nogueira
- Centro de Estudos do Ambiente e do Mar, CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
- Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal
| | - Bruno Nunes
- Centro de Estudos do Ambiente e do Mar, CESAM, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
- Departamento de Biologia, Universidade de Aveiro, Campus Universitário de Santiago, 3810-193, Aveiro, Portugal.
| |
Collapse
|
5
|
Sestili P, Fimognari C. Paracetamol-Induced Glutathione Consumption: Is There a Link With Severe COVID-19 Illness? Front Pharmacol 2020; 11:579944. [PMID: 33117175 PMCID: PMC7577213 DOI: 10.3389/fphar.2020.579944] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/15/2020] [Indexed: 01/02/2023] Open
Abstract
COVID-19 pandemic is posing an unprecedented sanitary threat: antiviral and host-directed medications to treat the disease are urgently needed. A great effort has been paid to find drugs and treatments for hospitalized, severely ill patients. However, medications used for the domiciliary management of early symptoms, notwithstanding their importance, have not been and are not presently regarded with the same attention and seriousness. In analogy with other airways viral infections, COVID-19 patients in the early phase require specific antivirals (still lacking) and non-etiotropic drugs to lower pain, fever, and control inflammation. Non-steroidal anti-inflammatory drugs (NSAIDs) and paracetamol (PAC) are widely used as non-etiotropic agents in common airways viral infections and hence are both theoretically repurposable for COVID-19. However, a warning from some research reports and National Authorities raised NSAIDs safety concerns because of the supposed induction of angiotensin-converting enzyme 2 (ACE2) levels (the receptor used by SARS-CoV2 to enter host airways cells), the increased risk of bacterial superinfections and masking of disease symptoms. As a consequence, the use of NSAIDs was, and is still, discouraged while the alternative adoption of paracetamol is still preferred. On the basis of novel data and hypothesis on the possible role of scarce glutathione (GSH) levels in the exacerbation of COVID-19 and of the GSH depleting activity of PAC, this commentary raises the question of whether PAC may be the better choice.
Collapse
Affiliation(s)
- Piero Sestili
- Department of Biomolecular Sciences (DISB), Università degli Studi di Urbino Carlo Bo, Urbino, Italy
| | - Carmela Fimognari
- Dipartimento di Scienze per la Qualità della Vita, Università degli Studi di Bologna, Rimini, Italy
| |
Collapse
|
6
|
Yang J, Yan B, Zhao B, Fan Y, He X, Yang L, Ma Q, Zheng J, Wang W, Bai L, Zhu F, Ma X. Assessing the Causal Effects of Human Serum Metabolites on 5 Major Psychiatric Disorders. Schizophr Bull 2020; 46:804-813. [PMID: 31919502 PMCID: PMC7342080 DOI: 10.1093/schbul/sbz138] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Psychiatric disorders are the leading cause of disability worldwide while the pathogenesis remains unclear. Genome-wide association studies (GWASs) have made great achievements in detecting disease-related genetic variants. However, functional information on the underlying biological processes is often lacking. Current reports propose the use of metabolic traits as functional intermediate phenotypes (the so-called genetically determined metabotypes or GDMs) to reveal the biological mechanisms of genetics in human diseases. Here we conducted a two-sample Mendelian randomization analysis that uses GDMs to assess the causal effects of 486 human serum metabolites on 5 major psychiatric disorders, which respectively were schizophrenia (SCZ), major depression (MDD), bipolar disorder (BIP), autism spectrum disorder (ASD), and attention-deficit/hyperactivity disorder (ADHD). Using genetic variants as proxies, our study has identified 137 metabolites linked to the risk of psychiatric disorders, including 2-methoxyacetaminophen sulfate, which affects SCZ (P = 1.7 × 10-5) and 1-docosahexaenoylglycerophosphocholine, which affects ADHD (P = 5.6 × 10-5). Fourteen significant metabolic pathways involved in the 5 psychiatric disorders assessed were also detected, such as glycine, serine, and threonine metabolism for SCZ (P = .0238), Aminoacyl-tRNA biosynthesis for both MDD (P = .0144) and ADHD (P = .0029). Our study provided novel insights into integrating metabolomics with genomics in order to understand the mechanisms underlying the pathogenesis of human diseases.
Collapse
Affiliation(s)
- Jian Yang
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Bin Yan
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Binbin Zhao
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Yajuan Fan
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Xiaoyan He
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Lihong Yang
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Qingyan Ma
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Jie Zheng
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Wei Wang
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Ling Bai
- Clinical Research Center, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Feng Zhu
- Center for Translational Medicine, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Xiancang Ma
- Department of Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China,To whom correspondence should be addressed; The First Affiliated Hospital of Xi’an Jiaotong University, No. 277 Yanta West Road, Xi’an 710061, China; tel: 029-85323614, fax: 029-85252580, e-mail:
| |
Collapse
|
7
|
Zuo M, Tang J, Xiang M, Long Q, Dai J, Yu G, Zhang H, Hu H. Clinical observation of the reduced glutathione in the treatment of diabetic chronic kidney disease. J Cell Biochem 2018; 120:8483-8491. [PMID: 30556156 DOI: 10.1002/jcb.28135] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 10/31/2018] [Indexed: 01/13/2023]
Affiliation(s)
- Man‐hua Zuo
- School of Medicine, Hubei Institute for Nationalities Enshi China
| | - Jun Tang
- Department of Nephrology The Central Hospital of Enshi Autonomous Prefecture Enshi China
| | - Miao‐miao Xiang
- Department of Nephrology The Central Hospital of Enshi Autonomous Prefecture Enshi China
| | - Qing Long
- Department of Nephrology The Central Hospital of Enshi Autonomous Prefecture Enshi China
| | - Jian‐ping Dai
- Department of Nephrology The Central Hospital of Enshi Autonomous Prefecture Enshi China
| | - Guo‐dan Yu
- Department of Nephrology The Central Hospital of Enshi Autonomous Prefecture Enshi China
| | - Hua‐guo Zhang
- Department of Nursing Henan Medical College Zhengzhou China
| | - Hui Hu
- Nursing School, Hubei University of Chinese Medicine Wuhan China
| |
Collapse
|
8
|
Tropisetron Protects Against Acetaminophen-Induced Liver Injury via Suppressing Hepatic Oxidative Stress and Modulating the Activation of JNK/ERK MAPK Pathways. BIOMED RESEARCH INTERNATIONAL 2016; 2016:1952947. [PMID: 27891510 PMCID: PMC5116490 DOI: 10.1155/2016/1952947] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 09/09/2016] [Accepted: 10/03/2016] [Indexed: 12/26/2022]
Abstract
Objectives. To investigate the protective effects of tropisetron on acetaminophen- (APAP-) induced liver injury in a mice model. Methods. C57BL/6 male mice were given tropisetron (0.3 to 10 mg/kg) 30 minutes before a hepatotoxic dose of acetaminophen (300 mg/kg) intraperitoneally. Twenty hours after APAP intoxication, sera alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels, hepatic myeloperoxidase (MPO), malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD) activities, and liver histopathological changes were examined. The MAP kinases were also detected by western blotting. Results. Our results showed that tropisetron pretreatment significantly attenuated the acute elevations of the liver enzyme ALT level, hepatic MPO activity, and hepatocytes necrosis in a dose-dependent manner (0.3-10 mg/kg) in APAP-induced hepatotoxicity mice. Tropisetron (1 and 3 mg/kg) suppressed APAP-induced hepatic lipid peroxidation expression and alleviated GSH and SOD depletion. Administration of tropisetron also attenuated the phosphorylation of c-Jun-NH2-terminal protein kinase (JNK) and extracellular signal-regulated kinase (ERK) caused by APAP. Conclusion. Our data demonstrated that tropisetron's hepatoprotective effect was in part correlated with the antioxidant, which were mediated via JNK and ERK pathways on acetaminophen-induced liver injury in mice.
Collapse
|
9
|
VRBOVÁ M, ROUŠAROVÁ E, BRŮČKOVÁ L, ČESLA P, ROUŠAR T. Characterization of Acetaminophen Toxicity in Human Kidney HK-2 Cells. Physiol Res 2016; 65:627-635. [DOI: 10.33549/physiolres.933158] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Acetaminophen (APAP) overdose causes liver injury, but in some cases it is associated also with renal impairment. While several studies exist in relation to acetaminophen nephrotoxicity, no reports have been published describing intracellular changes related to APAP nephrotoxicity in vitro. Because proximal tubular cells are considered to constitute a secondary site of drug-induced injury after hepatocytes, our study's aim was to estimate the toxicity in the human HK-2 cell line. We used a range of APAP concentrations (1-10 mM) to examine toxicity in the cells (1-48 h). We evaluated cell viability using the WST-1 and LDH tests. Cells impairment was also determined by monitoring ROS production, glutathione levels. We proved that HK-2 cells are able to metabolize acetaminophen. We observed moderate impairment of cells already after 1 h of treatment based on a finding of increased ROS production and decreased cell viability. After 24 h, the results showed significant cellular impairment at all tested concentrations except for 1 mM APAP, but no glutathione depletion was found. We conclude that HK-2 cells are susceptible to acetaminophen toxicity but, unlike hepatocytes, it might be not linked to glutathione depletion.
Collapse
Affiliation(s)
| | | | | | | | - T. ROUŠAR
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Pardubice, Czech Republic
| |
Collapse
|
10
|
Trettin A, Modun D, Madunic S, Vukovic J, Radman M, Batkai S, Thum T, Jordan J, Tsikas D. LC–MS/MS and GC–MS/MS measurement of plasma and urine di-paracetamol and 3-nitro-paracetamol: Proof-of-concept studies on a novel human model of oxidative stress based on oral paracetamol administration. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 959:71-81. [DOI: 10.1016/j.jchromb.2014.03.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 03/14/2014] [Accepted: 03/16/2014] [Indexed: 12/18/2022]
|