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Ali M, Kumar Das S, Shetake NG, Pandey BN, Kumar A. Enhanced thorium decorporation and mitigation of toxicity through combined use of Liv52® and diethylenetriamine pentaacetate. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135234. [PMID: 39042990 DOI: 10.1016/j.jhazmat.2024.135234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 06/28/2024] [Accepted: 07/15/2024] [Indexed: 07/25/2024]
Abstract
Thorium-232 (Th-232) is a promising fuel for advanced nuclear reactors. However, in case of internal human exposure to Th, there is currently no effective modality for its removal from liver and skeleton or for mitigating its effect. The FDA-approved agent, diethylenetriaminepentaacetate (DTPA), can remove Th and other actinides from blood circulation only. For the first time, a rationally-selected polyherbal hepatoprotective i.e. Liv52® (L52S), was evaluated in-combination with DTPA for its Th decorporation ability in Swiss mice. Inductively-coupled plasma mass spectroscopic analysis showed that oral administration of L52S in conjunction with DTPA significantly decreased Th burden from liver (20 %) and skeleton (33 %) as well as enhanced Th excretion (∼2.5 folds) through urine in comparison to DTPA or L52S alone. The combinatorial therapy was found to be complementary in-action, ameliorating Th-induced tissue damage in liver, spleen, and bone more effectively than monotherapy. Furthermore, markers of liver function (alanine transaminase) and liver inflammation and fibrosis (NF-κB & keratin) further validated the beneficial effect of L52S. The human consumption of L52S for various liver disorders further supports its clinical application for Th decorporation and mitigation of its health effects.
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Affiliation(s)
- Manjoor Ali
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India
| | - Sourav Kumar Das
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Neena G Shetake
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - B N Pandey
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India
| | - Amit Kumar
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400094, India.
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Yildirim N, Lale A, Yazıcı GN, Sunar M, Aktas M, Ozcicek A, Suleyman B, Ozcicek F, Suleyman H. Ameliorative effects of Liv-52 on doxorubicin-induced oxidative damage in rat liver. Biotech Histochem 2022; 97:616-621. [PMID: 35527648 DOI: 10.1080/10520295.2022.2065533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
Hepatotoxicity is a common side effect of doxorubicin (Dox) treatment of cancer. Liv-52 is an ayurvedic medicine that is reported to ameliorate liver injury due to oxidative stress. We investigated the effects of Liv-52 on Dox induced oxidative damage to liver tissues of rats using biochemical and histopathological techniques. Thirty male rats were assigned randomly into three equal groups: control (CG), Dox group (DG) Liv-52 + Dox group (LD). Rats in the LD group received 50 mg/kg Liv-52 in distilled water via gastric gavage. Distilled water was given via the same route to the rats in the DG and CG groups. Rats in the LD and DG groups were injected intraperitoneally with 5 mg/kg Dox 1 h after administration of Liv-52 or distilled water. The procedure was repeated daily for 7 days. On day 8, the animals were sacrificed, and serum and tissue biochemical and histopathological assays were performed. The malondialdehyde level was increased significantly in the DG group, while glutathione and superoxide dismutase levels were significantly lower in the DG group compared to the LD and CG groups. The highest levels of alanine aminotransferase, aspartate aminotransferase and lactate dehydrogenase were found in the DG group, while the lowest levels were found in the CG group, which exhibited levels similar to those of the LD group. Treatment with Liv-52 prior to Dox treatment reduced the histopathologic changes in the Dox group. Therefore, pre-treatment with Liv-52 protected against Dox induced oxidative stress and hepatotoxicity.
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Affiliation(s)
- Nilgun Yildirim
- Department of Medical Oncology, Firat University Faculty of Medicine, Elazıg, Turkey
| | - Azmi Lale
- Department of Surgical Oncology, Firat University Faculty of Medicine, Elazıg, Turkey
| | - Gulce Naz Yazıcı
- Department of Histology and Embryology, Binali Yıldırım University Faculty of Medicine, Erzincan, Turkey
| | - Mukadder Sunar
- Department of Anatomy, Binali Yıldırım University Faculty of Medicine, Erzincan, Turkey
| | - Mehmet Aktas
- Department of Biochemistry, Binali Yıldırım University Faculty of Medicine, Erzincan, Turkey
| | - Adelet Ozcicek
- Department of Internal Medicine, Binali Yıldırım University Faculty of Medicine, Erzincan, Turkey
| | - Bahadır Suleyman
- Department of Pharmacology, Binali Yıldırım University Faculty of Medicine, Erzincan, Turkey
| | - Fatih Ozcicek
- Department of Internal Medicine, Binali Yıldırım University Faculty of Medicine, Erzincan, Turkey
| | - Halis Suleyman
- Department of Pharmacology, Binali Yıldırım University Faculty of Medicine, Erzincan, Turkey
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Han JR, Du YN, Song L, Song YK, Yan JN, Jiang XY, Wu HT, Zhu BW. Structural characteristics and improved in vitro hepatoprotective activities of Maillard reaction products of decapeptide IVTNWDDMEK and ribose. J Food Sci 2021; 86:4001-4016. [PMID: 34318481 DOI: 10.1111/1750-3841.15848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 05/24/2021] [Accepted: 06/13/2021] [Indexed: 11/30/2022]
Abstract
Here, a novel decapeptide IVTNWDDMEK with Maillard reactivity derived from scallop Chlamys farreri mantle was identified. The structural characteristics and in vitro hepatoprotective effects of IVTNWDDMEK conjugated with ribose were further investigated. The changes in decapeptide structures were determined by ultraviolet-visible (UV-vis), Fourier transform infrared (FTIR), and atomic force microscopy (AFM), and the modification sites induced by Maillard reaction of IVTNWDDMEK and ribose were monitored by high performance liquid chromatography/tandem mass spectrometry (HPLC-MS/MS). Maillard reaction products (MRPs) of IVTNWDDMEK-ribose demonstrate hepatoprotective benefits through the suppression of DNA damage and apoptosis induced by oxidative stress in human HepG2 cells in addition to enhancing the antioxidant activities. Moreover, after treatment with decapeptide-ribose MRPs, the activities of cellular antioxidative enzymes, such as catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and glutathione reductase (GSH-Rx) were remarkably increased, while the content of malondialdehyde (MDA) was decreased compared with H2 O2 - treated group, thereby enhancing the intracellular antioxidant defenses. These findings demonstrate the potential utilization of decapeptide IVTNWDDMEK-ribose MRPs as food antioxidants to suppress oxidative damage. PRACTICAL APPLICATION: In recent years, several food-derived bioactive peptides and their derivatives are regarded as good dietary antioxidants for reducing oxidative stress and improving liver function. Here, a novel Maillard reactive decapeptide IVTNWDDMEK, identified from scallop mantle hydrolysates by peptidomics in the previous study was synthesized. Then, the correlation between intercellular antioxidant activities and chemical structure changes of IVTNWDDMEK-ribose Maillard reaction conjugates was further studied. The preferable hepatoprotective activities of decapeptide IVTNWDDMEK-ribose MRPs indicated that these MRPs could be potentially utilized as food antioxidants or additives in the production of nutritional foods.
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Affiliation(s)
- Jia-Run Han
- College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou Zhejiang, China.,School of Food Science and Technology, Dalian Polytechnic University, Dalian, P.R. China
| | - Yi-Nan Du
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P.R. China
| | - Liang Song
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P.R. China.,National Engineering Research Center of Seafood, Dalian, P.R. China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian, P.R. China
| | - Yu-Kun Song
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P.R. China.,National Engineering Research Center of Seafood, Dalian, P.R. China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian, P.R. China
| | - Jia-Nan Yan
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P.R. China
| | - Xin-Yu Jiang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P.R. China
| | - Hai-Tao Wu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P.R. China.,National Engineering Research Center of Seafood, Dalian, P.R. China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian, P.R. China
| | - Bei-Wei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian, P.R. China.,National Engineering Research Center of Seafood, Dalian, P.R. China.,Collaborative Innovation Center of Seafood Deep Processing, Dalian, P.R. China
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Cimen O, Eken H, Keskin Cimen F, Cekic AB, Kurt N, Ozbek Bilgin A, Suleyman B, Suleyman H, Mammadov R, Pehlivanoglu K, Kurnaz E. The effect of Liv-52 on liver ischemia reperfusion damage in rats. BMC Pharmacol Toxicol 2020; 21:2. [PMID: 31900219 PMCID: PMC6942351 DOI: 10.1186/s40360-019-0380-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 12/24/2019] [Indexed: 12/15/2022] Open
Abstract
Background Liver ischemia reperfusion (I/R) damage which is frequently seen in clinical hepatobiliary surgeries has no effective treatment for it. Liv-52, known to have hepatoprotective effects, is a natural antioxidant drug licensed by the Ministry of Health of India. The aim of our study is to investigate the effect of Liv-52 on liver damage induced by I/R in rats. Methods Albino Wistar male rats were divided into three groups; liver I/R (IR), 20 mg/kg Liv-52 + liver ischemia reperfusion (LIR) and sham operation applied to control group (HG). Liv-52 was administered to the LIR group (n = 6) 1 h prior to I/R application and distilled water was given orally to IR (n = 6) and HG (n = 6) groups as a solvent. Ischemia was determined as 1 h, and reperfusion was identified as 6 h in animals. Results Increased levels of alanine aminotransferase, aspartate aminotransferase and lactate dehydrogenase, malondialdehyde, myeloperoxidase, and decreased levels of superoxide dismutase, and glutathione related enzymes caused by I/R application have been converged to healthy group level with Liv-52 treatment and the damage in liver tissue has been improved histopathologically. Conclusions Liv-52 may be beneficial for preventing liver I/R damage in pre-surgery application.
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Affiliation(s)
- Orhan Cimen
- Department of General Surgery, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Hüseyin Eken
- Department of General Surgery, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Ferda Keskin Cimen
- Department of Pathology, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Arif Burak Cekic
- Department of General Surgery, Faculty of Medicine, Karadeniz Technical University, 61000, Trabzon, Turkey
| | - Nezahat Kurt
- Department of Biochemistry, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Asli Ozbek Bilgin
- Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Bahadir Suleyman
- Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Halis Suleyman
- Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Renad Mammadov
- Department of Pharmacology, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey.
| | - Kamil Pehlivanoglu
- Department of General Surgery, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
| | - Eray Kurnaz
- Department of General Surgery, Faculty of Medicine, Erzincan Binali Yildirim University, 24100, Erzincan, Turkey
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Wang YF, Tang ZH, Li T, Xu XH, Chen X, Wang Y, Wang YT, Lu JJ. Baicalein protects tert‑butyl hydroperoxide‑induced hepatotoxicity dependent of reactive oxygen species removal. Mol Med Rep 2017; 16:8392-8398. [PMID: 28944883 DOI: 10.3892/mmr.2017.7592] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 03/30/2017] [Indexed: 11/05/2022] Open
Abstract
Baicalein (BA), one of the major bioactive flavonoids isolated from Scutellariae Radix, possesses various pharmacological activities. The present study aimed to investigate the protective effects of BA on tert‑butyl hydroperoxide (t‑BHP)‑induced hepatotoxicity, and to investigate the potential mechanisms in LO2 cells. BA was demonstrated to possess protective properties against t‑BHP injury in LO2 cells, as evidenced by MTT and lactate dehydrogenase assays. BA significantly prevented t‑BHP‑induced depolarization of mitochondrial membrane potential (MMP), decreased the percentage of apoptotic cells caused by t‑BHP, and prevented intracellular reactive oxygen species (ROS) generation in LO2 cells. Furthermore, BA slightly triggered autophagy in LO2 cells, as evidenced by the elevation of LC3‑II expression, while BA combined treatment with an autophagy inhibitor (chloroquine) or activator (rapamycin) did not alter the hepatoprotective properties. In conclusion, BA may possess a hepatoprotective effect against t‑BHP‑induced liver cell injury, dependent on ROS removal. Therefore, BA may represent a potential drug candidate in protecting hepatotoxicity.
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Affiliation(s)
- Ya-Fang Wang
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau 999078, P.R. China
| | - Zheng-Hai Tang
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau 999078, P.R. China
| | - Ting Li
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau 999078, P.R. China
| | - Xiao-Huang Xu
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau 999078, P.R. China
| | - Xiuping Chen
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau 999078, P.R. China
| | - Ying Wang
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau 999078, P.R. China
| | - Yi-Tao Wang
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau 999078, P.R. China
| | - Jin-Jian Lu
- State Key Laboratory of Quality Research in Chinese Medicine and Institute of Chinese Medical Sciences, University of Macau, Macau 999078, P.R. China
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6
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Du Y, Esfandi R, Willmore WG, Tsopmo A. Antioxidant Activity of Oat Proteins Derived Peptides in Stressed Hepatic HepG2 Cells. Antioxidants (Basel) 2016; 5:antiox5040039. [PMID: 27775607 PMCID: PMC5187537 DOI: 10.3390/antiox5040039] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/14/2016] [Accepted: 10/19/2016] [Indexed: 11/16/2022] Open
Abstract
The purpose of this study was to determine, for the first time, antioxidant activities of seven peptides (P1–P7) derived from hydrolysis of oat proteins in a cellular model. In the oxygen radical absorbance capacity (ORAC) assay, it was found that P2 had the highest radical scavenging activity (0.67 ± 0.02 µM Trolox equivalent (TE)/µM peptide) followed by P5, P3, P6, P4, P1, and P7 whose activities were between 0.14–0.61 µM TE/µM). In the hepatic HepG2 cells, none of the peptides was cytotoxic at 20–300 µM. In addition to having the highest ORAC value, P2 was also the most protective (29% increase in cell viability) against 2,2′-azobis(2-methylpropionamidine) dihydrochloride -induced oxidative stress. P1, P6, and P7 protected at a lesser extent, with an 8%–21% increase viability of cells. The protection of cells was attributed to several factors including reduced production of intracellular reactive oxygen species, increased cellular glutathione, and increased activities of three main endogenous antioxidant enzymes.
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Affiliation(s)
- Yichen Du
- Food Science and Nutrition, Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada.
| | - Ramak Esfandi
- Food Science and Nutrition, Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada.
| | - William G Willmore
- Department of Biology and Institute of Biochemistry, Carleton University, Ottawa, ON K1S 5B6, Canada.
| | - Apollinaire Tsopmo
- Food Science and Nutrition, Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada.
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7
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Liu Y, Yi L, Wang L, Chen L, Chen X, Wang Y. Ginsenoside Rg1 protects human umbilical cord blood-derived stromal cells against tert-Butyl hydroperoxide-induced apoptosis through Akt-FoxO3a-Bim signaling pathway. Mol Cell Biochem 2016; 421:75-87. [PMID: 27522666 DOI: 10.1007/s11010-016-2786-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 08/05/2016] [Indexed: 12/22/2022]
Abstract
Human umbilical cord blood-derived stromal cells (hUCBDSCs) possess strong capability of supporting hematopoiesis and immune regulation, whereas some stress conditions cause reactive oxygen species (ROS) accumulation and then lead to oxidative injury and cell apoptosis. Ginsenoside Rg1 (G-Rg1) has been demonstrated to exert antioxidative and prosurvival effects in many cell types. In this study, the tert-Butyl hydroperoxide (t-BHP), an analog of hydroperoxide, was utilized to mimic the oxidative damage to hUCBDSCs. We aimed to investigate the effects of Ginsenoside Rg1 on protecting hUCBDSCs from t-BHP-induced oxidative injury and apoptosis, as well as the possible signaling pathway involved. It was shown that the treatment of hUCBDSCs with G-Rg1 markedly restored the t-BHP-induced cell viability loss, promoted the CFU-F formation, and inhibited cell apoptosis. G-Rg1 also caused a reduced production of LDH and MDA while significantly enhancing the activity of SOD. Mechanistically, G-Rg1 promoted the phosphorylation of Akt and FoxO3a and led to the cytoplasmic translocation of FoxO3a, which in turn suppressed FoxO3a-modulated expression of proapoptotic Bim and elevated the ratio of Bcl-2 to Bax. All these results suggest that G-Rg1 enhances the survival of t-BHP-induced hUCBDSCs and protects them against apoptosis at least partially through Akt-FoxO3a-Bim signaling pathway.
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Affiliation(s)
- Ying Liu
- Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, People's Republic of China
| | - Long Yi
- Research Center for Nutrition and Food Safety, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing, People's Republic of China
| | - Lu Wang
- Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, People's Republic of China
| | - Linbo Chen
- Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, People's Republic of China
| | - Xiongbin Chen
- Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, People's Republic of China
| | - Yaping Wang
- Department of Histology and Embryology, Laboratory of Stem Cells and Tissue Engineering, Chongqing Medical University, Chongqing, People's Republic of China.
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Standardized bioactive fraction of Phaleria macrocarpa (Proliverenol) prevents ethanol-induced hepatotoxicity via down-regulation of NF-κB-TNFα-caspase-8 pathway. Asian Pac J Trop Biomed 2016. [DOI: 10.1016/j.apjtb.2016.06.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Azeemuddin M, Rafiq M, Anturlikar SD, Sharath Kumar LM, Patki PS, Babu UV, Shyam R. Extract of a polyherbal formulation ameliorates experimental nonalcoholic steatohepatitis. J Tradit Complement Med 2016; 6:160-7. [PMID: 27114939 PMCID: PMC4833463 DOI: 10.1016/j.jtcme.2014.12.002] [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: 09/17/2014] [Revised: 11/24/2014] [Accepted: 12/04/2014] [Indexed: 12/16/2022] Open
Abstract
The objective of the present study is to evaluate the effect of the extract of a well-known hepatospecific polyherbal formulation, Liv.52, in an experimental model of high-fat diet (HFD)-induced nonalcoholic steatohepatitis (NASH) in rats. Feeding a HFD for 15 weeks resulted in significant impairment of the lipid profile, elevation of hepatic enzyme markers, and insulin resistance in rats. The histological examination of the liver furthermore indicated fibrotic changes and fat deposition in hepatic tissues. The treatment with Liv.52 extract [125 mg/kg body weight per os (b.wt. p.o.)], which was administered from week 9 onward, reversed the HFD-induced changes to a statistically significant extent, compared to the untreated positive control animals. The effect observed with Liv.52 extract was comparable to that of pioglitazone (4 mg/kg b.wt.), a standard drug that is useful in the management of NASH. The treatment with Liv.52 extract significantly reduced steatosis, collagen deposition, and necrosis in hepatic tissues, which indicates its antifibrotic and antinecrotic properties. The results obtained in the present set of experiments indicate that Liv.52 extract effectively reverses metabolic and histological changes associated with HFD-induced NASH.
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Affiliation(s)
- Mohammed Azeemuddin
- Department of Pharmacology, R&D Center, The Himalaya Drug Company, Bangalore, India
| | - Mohamed Rafiq
- Department of Pharmacology, R&D Center, The Himalaya Drug Company, Bangalore, India
| | | | | | | | | | - Ramakrishnan Shyam
- Chief Scientific Officer, R&D Center, The Himalaya Drug Company, Bangalore, India
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Oh NS, Young Lee J, Lee HA, Joung JY, Shin YK, Kim SH, Kim Y, Lee KW. Chemical characteristics and enhanced hepatoprotective activities of Maillard reaction products derived from milk protein-sugar system. J Dairy Sci 2016; 99:947-958. [DOI: 10.3168/jds.2015-10009] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 09/04/2015] [Indexed: 01/08/2023]
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Samanta P, Pal S, Mukherjee AK, Ghosh AR. Evaluation of metabolic enzymes in response to Excel Mera 71, a glyphosate-based herbicide, and recovery pattern in freshwater teleostean fishes. BIOMED RESEARCH INTERNATIONAL 2014; 2014:425159. [PMID: 25013782 PMCID: PMC4071806 DOI: 10.1155/2014/425159] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 05/20/2014] [Accepted: 05/24/2014] [Indexed: 11/17/2022]
Abstract
Metabolic enzymes such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), and alkaline phosphatase (ALP) were evaluated in Indian teleostean fishes, namely, Anabas testudineus (Bloch) and Heteropneustes fossilis (Bloch), for an exposure to 30 days of Excel Mera 71 (17.2 mg/L), a glyphosate formulation, and subsequent depuration under Liv.52, a plant extract at a dose of 187.5 mg/d/250 L for the same period in the same tissues under laboratory condition. ALT activity was significantly increased (P<0.05) in all the tissues and raised up to 229.19% in liver of A. testudineus (229.19%) and 128.61% in liver of H. fossilis. AST also increased significantly (P<0.05) and was maximum in liver of H. fossilis (526.19%) and minimum in gill of A. testudineus (124.38%). ALP activity was also raised highly in intestine of H. fossilis (490.61%) but was less in kidney of H. fossilis (149.48%). The results indicated that Excel Mera 71 caused alterations in the metabolic enzymatic activities in fish tissues and AST showed the highest alteration in both the fishes, while lowest in ALP and ALT in A. testudineus and H. fossilis, respectively. During depuration under Liv.52, all the enzyme activities came down towards the control condition which indicated the compensatory response by the fish against this herbicidal stress and it was in the following order: AST>ALT>ALP, in A. testudineus, while H. fossilis showed the following trend: ALT>AST>ALP. Therefore, these parameters could be used as indicators of herbicidal pollution in aquatic organisms and were recommended for environmental monitoring for investigating the mechanism involved in the recovery pattern.
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Affiliation(s)
- Palas Samanta
- Ecotoxicology Laboratory, Department of Environmental Science, The University of Burdwan, Golapbag, Burdwan, West Bengal 713104, India
| | - Sandipan Pal
- Department of Environmental Science, Aghorekamini Prakashchandra Mahavidyalaya, Subhasnagar, Bengai, Hooghly, West Bengal 712611, India
| | - Aloke Kumar Mukherjee
- P.G. Department of Conservation Biology, Durgapur Government College, Durgapur, West Bengal 713214, India
| | - Apurba Ratan Ghosh
- Ecotoxicology Laboratory, Department of Environmental Science, The University of Burdwan, Golapbag, Burdwan, West Bengal 713104, India
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12
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Comparison of biological processes induced in HepG2 cells by tert-butyl hydroperoxide (t-BHP) and hydroperoxide (H2O2): The influence of carvacrol. MUTATION RESEARCH-GENETIC TOXICOLOGY AND ENVIRONMENTAL MUTAGENESIS 2013; 757:15-22. [DOI: 10.1016/j.mrgentox.2013.03.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 02/01/2013] [Accepted: 03/28/2013] [Indexed: 11/19/2022]
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13
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Din WM, Chu J, Clarke G, Jin KT, Bradshaw TD, Fry JR, Wiart C. Antioxidant and Cytoprotective Effects of an Ethanol Extract of Acalypha wilkesiana var. macafeana from Malaysia. Nat Prod Commun 2013. [DOI: 10.1177/1934578x1300800325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In the annals of biomedical theory perhaps no single class of natural product has enjoyed more ingenious speculation than antioxidants formally aimed at counteracting oxidative insults which are involved in the pathophysiology of Alzheimer's and Parkinson's disease, cancer, amyotrophic lateral sclerosis, skin ageing and wound healing. In pursuing our study of Malaysian traditional medicines with antioxidant properties, we became interested in Acalypha wilkesiana var. macafeana hort., used traditionally to heal wounds. To examine whether Acalypha wilkesiana var. macafeana hort. could suppress oxidation an ethanol extract was tested by conventional chemical in vitro assays i.e., ferric reducing antioxidant potential assay (FRAP), DPPH scavenging assay and beta-carotene bleaching (BCB) assay. To explore whether Acalypha wilkesiana var. macafeana hort. protected cells against oxidative injuries, we exposed human hepatocellular liver carcinoma (HepG2) cells to tert-butylhydroperoxide ( t-BHP). In all the aforementioned experiments, the ethanol extracts elicited potent antioxidant and cytoprotective activities. To gain a better understanding of the phytochemical nature of the antioxidant principle involved, five fractions (F1-F5) obtained from the ethanol extract were tested using FRAP, DPPH and BCB assays. Our results provided evidence that F5 was the most active fraction with antioxidant potentials equal to 2.090 ± 0.307 μg/mL, 0.532 ± 0.041 μg/mL, 0.032 ± 0.025 μg/mL in FRAP, DPPH and BCB assay, respectively. Interestingly, F5 protected HepG2 against t-BHP oxidative insults. To further define the chemical identity of the antioxidant principle, we first performed a series of phytochemical tests, followed by liquid-chromatography and mass spectrometry (LC/MS) profiling which showed that the major compound contained in F5 was geraniin. To the best of our knowledge, this is the first report showing that the wound healing property of Acalypha wilkesiana var. macafeana hort. is mediated by a geraniin containing extract. Furthermore, our data leads us to conclude that geraniin could be used as a potential pharmaceutical and/or cosmetic topical agent.
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Affiliation(s)
- Wardah M. Din
- School of Biomedical Sciences, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Jessica Chu
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Garry Clarke
- School of Biomedical Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Khoo T. Jin
- School of Pharmacy, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
| | - Tracey D. Bradshaw
- School of Pharmacy, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Jeff R. Fry
- School of Biomedical Sciences, University of Nottingham, University Park, Nottingham, NG7 2RD, United Kingdom
| | - Christophe Wiart
- School of Biomedical Sciences, University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor, Malaysia
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Quercetin ameliorate insulin resistance and up-regulates cellular antioxidants during oleic acid induced hepatic steatosis in HepG2 cells. Toxicol In Vitro 2013; 27:945-53. [PMID: 23348005 DOI: 10.1016/j.tiv.2013.01.014] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Revised: 12/24/2012] [Accepted: 01/10/2013] [Indexed: 12/14/2022]
Abstract
Hepatic lipid accumulation and oxidative stress contribute to non-alcoholic fatty liver disease (NAFLD). Thus, we hypothesized that the hypolipidemic and antioxidant activity of quercetin would attenuate events leading to NAFLD. Addition of 2.0mM oleic acid (OA) into the culture media induced fatty liver condition in HepG2 cells by 24h. It was marked by significant accumulation of lipid droplets as determined by Oil-Red-O (ORO) based colorimetric assay, increased triacylglycerol (TAG) and increased lipid peroxidation. The inflammatory cytokines TNF-α and IL-8 levels were significantly increased with decreased antioxidant molecules. OA induced insulin resistance which was evident by inhibition of glucose uptake and cell proliferation. Quercetin (10 μM) increased cell proliferation by 3.05 folds with decreased TAG content (45%) and was effective in increasing insulin mediated glucose uptake by 2.65 folds. The intracellular glutathione content was increased by 2.0 folds without substantial increase in GSSG content. Quercetin (10 μM) decreased TNF-α and IL-8 by 59.74% and 41.11% respectively and inhibited generation of lipid peroxides by 50.5%. In addition, RT-PCR results confirmed quercetin (10 μM) inhibited TNF-alpha gene expression. Further, superoxide dismutase, catalase and glutathione peroxidase activities were increased by 1.68, 2.19 and 1.71 folds respectively. Albumin and urea content was increased while the alanine aminotransferase (ALAT) activity was significantly decreased by quercetin. Hence, quercetin effectively reversed NAFLD symptoms by decreased triacyl glycerol accumulation, insulin resistance, inflammatory cytokine secretion and increased cellular antioxidants in OA induced hepatic steatosis in HepG2 cells.
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Vidyashankar S, Sharath Kumar LM, Barooah V, Sandeep Varma R, Nandakumar KS, Patki PS. Liv.52 up-regulates cellular antioxidants and increase glucose uptake to circumvent oleic acid induced hepatic steatosis in HepG2 cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2012; 19:1156-1165. [PMID: 22940028 DOI: 10.1016/j.phymed.2012.08.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2012] [Revised: 06/28/2012] [Accepted: 08/05/2012] [Indexed: 06/01/2023]
Abstract
HepG2 cells were rendered steatotic by supplementing 2.0mM oleic acid (OA) in the culture media for 24h. OA induced hepatic steatosis in HepG2 cells was marked by significant accumulation of lipid droplets as determined by Oil-Red-O (ORO) based colorimetric assay, increased triacylglycerol (TAG) and increased lipid peroxidation. It was also marked by increased inflammatory cytokines TNF-α and IL-8 with decreased enzymic and non-enzymic antioxidant molecules and decreased cell proliferation associated with insulin resistance and DNA fragmentation. Addition of Liv.52 hydro-alcoholic extract (LHAE) 50μg/mL to the steatotic cells was effective in increasing the insulin mediated glucose uptake by 3.13 folds and increased cell proliferation by 3.81 folds with decreased TAG content (55%) and cytokines. The intracellular glutathione content was increased by 8.9 folds without substantial increase in GSSG content. LHAE decreased TNF-α and IL-8 by 51% and 6.5% folds respectively, lipid peroxidation by 65% and inhibited DNA fragmentation by 69%. The superoxide dismutase, catalase and glutathione peroxidase activities were increased by 88%, 128% and 64% respectively. Albumin and urea content was increased while the alanine aminotransferase (ALAT) activity was significantly decreased by LHAE. Hence, LHAE effectively attenuate molecular perturbations associated with non-alcoholic fatty liver disease (NAFLD) indications in HepG2 cells.
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Affiliation(s)
- Satyakumar Vidyashankar
- Cell Biology and Biochemistry, Research and Development, The Himalaya Drug Company, Makali, Bangalore, India.
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Shivananjappa MM, Mhasavade D, Joshi MK. Aqueous extract ofTerminalia arjunaattenuates tert-butyl hydroperoxide-induced oxidative stress in HepG2 cell model. Cell Biochem Funct 2012; 31:129-35. [DOI: 10.1002/cbf.2867] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Revised: 12/19/2011] [Accepted: 07/17/2012] [Indexed: 11/08/2022]
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Herbal products: benefits, limits, and applications in chronic liver disease. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:837939. [PMID: 22991573 PMCID: PMC3443820 DOI: 10.1155/2012/837939] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/02/2012] [Accepted: 07/30/2012] [Indexed: 12/14/2022]
Abstract
Complementary and alternative medicine soughts and encompasses a wide range of approaches; its use begun in ancient China at the time of Xia dynasty and in India during the Vedic period, but thanks to its long-lasting curative effect, easy availability, natural way of healing, and poor side-effects it is gaining importance throughout the world in clinical practice. We conducted a review describing the effects and the limits of using herbal products in chronic liver disease, focusing our attention on those most known, such as quercetin or curcumin. We tried to describe their pharmacokinetics, biological properties, and their beneficial effects (as antioxidant role) in metabolic, alcoholic, and viral hepatitis (considering that oxidative stress is the common pathway of chronic liver diseases of different etiology). The main limit of applicability of CAM comes from the lacking of randomized, placebo-controlled clinical trials giving a real proof of efficacy of those products, so that anecdotal success and personal experience are frequently the driving force for acceptance of CAM in the population.
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Lee H, Kim J, Lee SY, Park JH, Hwang GS. Processed Panax ginseng, Sun Ginseng, Decreases Oxidative Damage Induced by tert-butyl Hydroperoxide via Regulation of Antioxidant Enzyme and Anti-apoptotic Molecules in HepG2 Cells. J Ginseng Res 2012; 36:248-55. [PMID: 23717125 PMCID: PMC3659594 DOI: 10.5142/jgr.2012.36.3.248] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2012] [Revised: 03/13/2012] [Accepted: 04/03/2012] [Indexed: 11/18/2022] Open
Abstract
Potential antioxidant effect of processed ginseng (sun ginseng, SG) on oxidative stress generated by tert-butyl hydroperoxide (t-BHP) was investigated in HepG2 cells. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay and lactate dehydrogenase (LDH) leakage test demonstrated that SG dose-dependently prevents a loss of cell viability against t-BHP-induced oxidative stress. Also, SG treatment dose-dependently relieved the increment of activities of hepatic enzymes, such as aspartate aminotrasferase and alanine aminotransferase, and lipid peroxidation mediated by t-BHP treatment in HepG2 cells. SG increased the gene expression of antioxidant enzymes such as superoxide dismutase, catalase, and glutathione peroxidase. However, high dose of SG treatment caused decrease in mRNA level of glutathione peroxidase as compared to low dosage of SG-treated cells. The gene expression of glutathione reductase was found to be slightly increased by SG treatment. In addition, SG extract attributed its hepaprotective effect by inducing the mRNA level of bcl-2 and bcl-xL but reducing that of bax. But, the gene expression of bad showed no significant change in SG-treated HepG2 cells. These findings suggest that SG has hepatoprotective effect by showing reduction of LDH release, activities of hepatic enzymes and lipid peroxidation and regulating the gene expression of antioxidant enzymes and apoptosis-related molecules against oxdative stress caused by t-BHP in HepG2 cells.
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Affiliation(s)
- Hyejin Lee
- Lab of Cell Differentiation Research, College of Oriental Medicine, Gachon University, Seongnam 461-701, Korea
| | - Jinhee Kim
- Lab of Cell Differentiation Research, College of Oriental Medicine, Gachon University, Seongnam 461-701, Korea
| | - Seo Young Lee
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
| | - Jeong Hill Park
- College of Pharmacy, Seoul National University, Seoul 151-742, Korea
| | - Gwi Seo Hwang
- Lab of Cell Differentiation Research, College of Oriental Medicine, Gachon University, Seongnam 461-701, Korea
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Magnone M, Sturla L, Jacchetti E, Scarfì S, Bruzzone S, Usai C, Guida L, Salis A, Damonte G, De Flora A, Zocchi E. Autocrine abscisic acid plays a key role in quartz-induced macrophage activation. FASEB J 2012; 26:1261-1271. [PMID: 22042223 DOI: 10.1096/fj.11-187351] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Inhalation of quartz induces silicosis, a lung disease where alveolar macrophages release inflammatory mediators, including prostaglandin-E(2) (PGE(2)) and tumor necrosis factor α (TNF-α). Here we report the pivotal role of abscisic acid (ABA), a recently discovered human inflammatory hormone, in silica-induced activation of murine RAW264.7 macrophages and of rat alveolar macrophages (AMs). Stimulation of both RAW264.7 cells and AMs with quartz induced a significant increase of ABA release (5- and 10-fold, respectively), compared to untreated cells. In RAW264.7 cells, autocrine ABA released after quartz stimulation sequentially activates the plasma membrane receptor LANCL2 and NADPH oxidase, generating a Ca(2+) influx resulting in NFκ B nuclear translocation and PGE(2) and TNF-α release (3-, 2-, and 3.5-fold increase, respectively, compared to control, unstimulated cells). Quartz-stimulated RAW264.7 cells silenced for LANCL2 or preincubated with a monoclonal antibody against ABA show an almost complete inhibition of NFκ B nuclear translocation and PGE(2) and TNF-α release compared to controls electroporated with a scramble oligonucleotide or preincubated with an unrelated antibody. AMs showed similar early and late ABA-induced responses as RAW264.7 cells. These findings identify ABA and LANCL2 as key mediators in quartz-induced inflammation, providing possible new targets for antisilicotic therapy.
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Affiliation(s)
- Mirko Magnone
- DIMES, Section of Biochemistry, University of Genova, Viale Benedetto XV, 1 16132 Genova, Italy.
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Yang SY, Hong CO, Lee H, Park SY, Park BG, Lee KW. Protective effect of extracts of Perilla frutescens treated with sucrose on tert-butyl hydroperoxide-induced oxidative hepatotoxicity in vitro and in vivo. Food Chem 2012; 133:337-43. [PMID: 25683404 DOI: 10.1016/j.foodchem.2012.01.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2011] [Revised: 11/16/2011] [Accepted: 01/16/2012] [Indexed: 11/25/2022]
Abstract
Perilla frutescens leaves are often used in East Asian gourmet food. In this study, we investigated the hepatoprotective effects of P. frutescens leaves grown in different concentrations of sucrose (0, 115, 175 and 235 mM sucrose) leading to four samples of perilla leaf extracts (PLEs). Based on caffeic acid level and antioxidant activities, further experiments were conducted using perilla leaf extracts treated with 6% sucrose compared with non-treated perilla leaf extracts as a control. Oral intubation with non-treated perilla leaf extracts or perilla leaf extracts treated with 6% sucrose (1000 mg/kg b.w. rat) for 5 days was conducted before treatment with a single dose of tert-butyl hydroperoxide (0.5 mmol/kg b.w., i.p.) led to a significant reduction of hepatic toxicity in the perilla leaf extracts treated with 6% sucrose. We demonstrated that P. frutescens with higher contents of caffeic acid was produced, and that sucrose could play a role in the induction of this secondary metabolite. Sucrose-treated perilla leaves, which had better antioxidant activities than untreated leaves, can be used as a potential dietary source.
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Affiliation(s)
- Sung-Yong Yang
- Division of Food Bioscience and Technology, College of Life Science & Biotechnology, Korea University, Seoul 136-713, South Korea
| | - Chung-Oui Hong
- Division of Food Bioscience and Technology, College of Life Science & Biotechnology, Korea University, Seoul 136-713, South Korea
| | - Hojoung Lee
- Division of Life and Genetic Engineering, College of Life Science & Biotechnology, Korea University, Seoul 136-713, South Korea
| | - Sang-Yul Park
- Miryang City Agricultural Technology Center, Miryang-si, Gyeongsangnam-do 627-911, South Korea
| | - Byung-Gyu Park
- Nutraceutical & Functional Food Center, CJ CheilJedang Co., Seoul 152-051, South Korea
| | - Kwang-Won Lee
- Division of Food Bioscience and Technology, College of Life Science & Biotechnology, Korea University, Seoul 136-713, South Korea.
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Ghosh N, Ghosh R, Mandal V, Mandal SC. Recent advances in herbal medicine for treatment of liver diseases. PHARMACEUTICAL BIOLOGY 2011; 49:970-988. [PMID: 21595500 DOI: 10.3109/13880209.2011.558515] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
CONTEXT Liver disease is a serious ailment and the scenario is worsened by the lack of precise therapeutic regimens. Currently available therapies for liver ailments are not apposite and systemic toxicity inhibits their long term use. Medicinal plants have been traditionally used for treating liver diseases since centuries as the toxicity factor appears to be on the lower side. OBJECTIVE Several phytochemials have been identified which have significant hepatoprotective activity with minimal systemic adverse effects which could limit their long term use. The scenario calls for extensive investigations which can lead to development of lead molecules for hepatoprotective molecules of future. This review deals with the biological activity, mode of action and toxicity and forthcoming application of some of these leads. METHODS These generally have strong antioxidative potential and cause induction of antioxidant enzymes like superoxide dismutase, reduced glutathione and catalase. Additional mechanisms of hepatoprotection include stimulation of heme oxygenase-1 activity, inhibition of nitric oxide production, hepatocyte apoptosis and nuclear factor-κB activation. RESULTS AND CONCLUSION Out of the several leads obtained from plant sources as potential hepatoprotective agents, silymarin, andrographolide, neoandrographolide, curcumin, picroside, kutkoside, phyllanthin, hypophyllanthin, and glycyrrhizin have been established as potent hepatoprotective agents. The hepatoprotective potential of several herbal medicines has been clinically evaluated. Significant efficacy has been seen with silymarin, glycyrrhizin and Liv-52 in treatment of hepatitis, alcoholic liver disease and liver cirrhosis.
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Affiliation(s)
- Nilanjan Ghosh
- Dr. BC Roy College of Pharmacy and Allied Health Sciences, Durgapur, India.
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Vidyashankar S, Patki PS. Liv.52 attenuate copper induced toxicity by inhibiting glutathione depletion and increased antioxidant enzyme activity in HepG2 cells. Food Chem Toxicol 2010; 48:1863-8. [PMID: 20412827 DOI: 10.1016/j.fct.2010.04.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 03/18/2010] [Accepted: 04/15/2010] [Indexed: 10/19/2022]
Abstract
Altered copper metabolism plays a pivotal role in the onset of several hepatic disorders and glutathione (GSH) plays an important role in its homeostasis. Hepatic diseases are often implicated with decreased content of intracellular GSH. GSH depleted cells are prone to increased oxidative damage eventually leading to its death. Liv.52 is used to treat hepatic ailments since long time. Hence, in the present study the potential cytoprotective effect of Liv.52 against toxicity induced by copper (Cu2+) was evaluated in HepG2 cells. Cu2+ at 750 microM induced cytotoxicity to HepG2 cells as determined by MTT assay. The toxicity was brought about by increased lipid peroxidation, DNA fragmentation and decreased GSH content. But, upon treatment with Liv.52 cell death induced by Cu2+ was significantly abrogated by inhibition of lipid peroxidation by 58% and DNA fragmentation by 37%. Liv.52 increased the GSH content by 74%. Activities of the antioxidant enzymes catalase, glutathione peroxidase and superoxide dismutase were increased by 46%, 22% and 81% respectively in Liv.52 treated cells. Thus, it is apparent from these results that Liv.52 abrogates Cu2+ induced cytotoxicity in HepG2 cells by inhibiting lipid peroxidation and increased GSH content and antioxidant enzyme activity.
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Affiliation(s)
- Satyakumar Vidyashankar
- Department of Cell Biology and Biochemistry, Research and Development, The Himalaya Drug Company, Makali, Bangalore 562123, India.
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