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Dias FCR, Cupertino MC, Silva PG, Oliveira EL, Ladeira LCM, Matta SLP, Otoni WC, Gomes MLM. Exposure to Pfaffia glomerata causes oxidative stress and triggers hepatic changes. BRAZ J BIOL 2023; 83:e271425. [PMID: 37341252 DOI: 10.1590/1519-6984.271425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Accepted: 05/16/2023] [Indexed: 06/22/2023] Open
Abstract
Medicinal plant species are genetically engineered to obtain higher production of biomass and specific secondary metabolites, which can be used in the pharmaceutical industry. The aim of the present study was to evaluate the effect of Pfaffia glomerata (Spreng.) Pedersen tetraploid hydroalcoholic extract on the liver of adult Swiss mice. The extract was prepared from the plant roots and given to the animals by gavage, for 42 days. The experimental groups were treated with water (control), Pfaffia glomerata tetraploid hydroalcoholic extract (100, 200 and 400 mg/kg) and Pfaffia glomerata tetraploid hydroalcoholic extract discontinuously (200 mg/kg). The last group received the extract every 3 days, for 42 days. The oxidative status, mineral dynamics, and cell viability were analysed. The liver weight and the number of viable hepatocytes were reduced, despite the increased cell's number. Increased levels of malondialdehyde and nitric oxide, and changes in iron, copper, zinc, potassium, manganese and sodium levels were observed. aspartate aminotransferase levels were increased while alanine aminotransferase levels were decreased due to BGEt intake. Our results showed that BGEt induced alterations of oxidative stress biomarkers leading to liver injury, which was associated with a reduction in the number of hepatocytes.
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Affiliation(s)
- F C R Dias
- Universidade Federal do Triângulo Mineiro - UFTM, Departamento de Biologia Estrutural, Uberaba, MG, Brasil
- Universidade Federal Rural de Pernambuco - UFRPE, Departamento de Veterinária, Recife, PE, Brasil
| | - M C Cupertino
- Universidade Federal de Viçosa - UFV, Departamento de Medicina e Nutrição, Laboratório de Métodos Epidemiológicos e Computacionais em Saúde, Viçosa, MG, Brasil
- Universidade Federal de Viçosa - UFV, Departamento de Biologia Geral, Viçosa, MG, Brasil
| | - P G Silva
- Universidade Federal de Viçosa - UFV, Departamento de Biologia Animal, Viçosa, MG, Brasil
| | - E L Oliveira
- Universidade Federal de Viçosa - UFV, Departamento de Biologia Geral, Viçosa, MG, Brasil
| | - L C M Ladeira
- Universidade Federal de Viçosa - UFV, Departamento de Biologia Geral, Viçosa, MG, Brasil
| | - S L P Matta
- Universidade Federal de Viçosa - UFV, Departamento de Biologia Geral, Viçosa, MG, Brasil
| | - W C Otoni
- Universidade Federal de Viçosa - UFV, Departamento de Biologia Vegetal, Viçosa, MG, Brasil
| | - M L M Gomes
- Universidade Federal do Triângulo Mineiro - UFTM, Departamento de Biologia Estrutural, Uberaba, MG, Brasil
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2
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A naphthimide fluorescent probe for the detection of selenols in selenium-enriched Tan sheep. Food Chem 2022; 373:131647. [PMID: 34838402 DOI: 10.1016/j.foodchem.2021.131647] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 11/15/2021] [Accepted: 11/16/2021] [Indexed: 12/29/2022]
Abstract
An "off-on" fluorescent probe, Nap-DNB, which is based on naphthimide, was designed and developed for the detection of biological selenols in vitro. We have adopted a combination of a low-pH detection environment and reaction sites that are more difficult to destroy to avoid the interference of a large number of biological thiols in biological samples. Nap-DNB can completely respond to selenocysteine within 15 mins, with a detection limit of 92 nM. Nap-DNB was successfully used for the detection of selenols in the serum, liver, and longissimus dorsi of selenium-enriched Tan sheep. Through comparison, we found that the detection of selenols by the Nap-DNB is similar to that by thioredoxin reductase and glutathione peroxidase in a commercial kit method. Nap-DNB can be used for the detection of selenols in selenium-enriched Tan sheep.
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3
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Bonfim NESMT, Baranoski A, Mantovani MS. Cytotoxicity of sodium selenite in HaCaT cells induces cell death and alters the mRNA expression of PUMA, ATR, and mTOR genes. J Trace Elem Med Biol 2020; 62:126605. [PMID: 32634766 DOI: 10.1016/j.jtemb.2020.126605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 06/18/2020] [Accepted: 06/30/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND By identifying the molecular mechanisms underlying sodium selenite (Na2SeO3) cytotoxicity during exposure in non-tumor cells (HaCaT cells), we will improve the current understanding of its antiproliferative effects and modulation of gene expression in the main pathways related to the cell cycle, cell death, oxidative stress, and DNA damage and repair. METHODS Non-tumor HaCaT cells were treated with Na2SeO3 to induce cytotoxicity, and the effects were investigated using an MTT assay (cell viability), real-time cell analysis (profiling the cell index), flow cytometry (membrane integrity, cell cycle disruption, and apoptosis), a comet assay (genotoxicity, i.e., DNA damage), and RT-qPCR (mRNA expression of genes). RESULTS Treatment with Na2SeO3 was cytotoxic at 10 μM, producing morphological changes in cells (cytoplasmic granulations); however, it did not have a genotoxic effect. Na2SeO3 induced cell membrane damage, cell death, and cell cycle arrest in HaCaT cells. It also altered the mRNA expression levels of PUMA, ATR, and mTOR genes. However, it had no effect on the mRNA expression of caspases or PARP1, BIRC5, BECN1, and c-MYC genes, suggesting that Na2SeO3 causes PUMA-dependent apoptosis in HaCaT cells. The mRNA expression of specific genes related to oxidative stress, DNA damage and repair, and cell cycle control were unchanged by Na2SeO3. CONCLUSIONS We demonstrated the cytotoxic effect of Na2SeO3 in HaCaT cells by analyzing mRNA expression patterns, changes in cell morphology, and proliferation kinetics.
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Affiliation(s)
| | - Adrivanio Baranoski
- Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, Paraná, Brazil
| | - Mário Sérgio Mantovani
- Departamento de Biologia Geral, Universidade Estadual de Londrina, Londrina, Paraná, Brazil.
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4
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Chen HC, Awale S, Wu CP, Lee HH, Wu HT. Co-cultured bone marrow mesenchymal stem cells repair thioacetamide-induced hepatocyte damage. Cell Biol Int 2020; 44:2459-2472. [PMID: 32827326 DOI: 10.1002/cbin.11453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 07/18/2020] [Accepted: 08/16/2020] [Indexed: 12/11/2022]
Abstract
Adult stem cells, such as bone marrow mesenchymal stem cells (BMSCs), are postdevelopmental cells found in many bone tissues. They are capable of multipotent differentiation and have low immune-rejection characteristics. Hepatocytes may become inflamed and produce a large number of free radicals when affected by drugs, poisoning, or a viral infection. The excessive accumulation of free radicals in the extracellular matrix (ECM) eventually leads to liver fibrosis. This study aims to investigate the restorative effects of mouse bone marrow mesenchymal stem cells (mBMSCs) on thioacetamide (TAA)-induced damage in hepatocytes. An in vitro transwell co-culture system of HepG2 cells were co-cultured with mBMSCs. The effects of damage done to TAA-treated HepG2 cells were reflected in the overall cell survival, the expression of antioxidants (SOD1, GPX1, and CAT), the ECM (COL1A1 and MMP9), antiapoptosis characteristics (BCL2), and inflammation (TNF) genes. The majority of the damage done to HepG2 by TAA was significantly reduced when cells were co-cultured with mBMSCs. The signal transducer and activator of transcription 3 (STAT3) and its phosphorylated STAT3 (p-STAT3), as related to cell growth and survival, were detected in this study. The results show that STAT3 was significantly decreased in the TAA-treated HepG2 cells, but the STAT3 and p-STAT3 of HepG2 cells were significantly activated when the TAA-treated HepG2 co-cultured with mBMSCs. Strong expression of interleukin (Il6) messenger RNA in co-cultured mBMSCs/HepG2 indicated mBMSCs secret the cytokines IL-6, which promotes cell survival through downstream STAT3 activation and aid in the recovery of HepG2 cells damaged by TAA.
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Affiliation(s)
- Hung-Chiuan Chen
- Department of BioAgricultural Sciences, National Chiayi University, Chiayi City, Taiwan
| | - Suresh Awale
- Department of Translational Research, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Chean-Ping Wu
- Department of Animal Science, National Chiayi University, Chiayi City, Taiwan
| | - Hu-Hui Lee
- Department of BioAgricultural Sciences, National Chiayi University, Chiayi City, Taiwan
| | - Hsi-Tien Wu
- Department of BioAgricultural Sciences, National Chiayi University, Chiayi City, Taiwan
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5
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Tang C, Li S, Zhang K, Li J, Han Y, Zhan T, Zhao Q, Guo X, Zhang J. Selenium deficiency-induced redox imbalance leads to metabolic reprogramming and inflammation in the liver. Redox Biol 2020; 36:101519. [PMID: 32531544 PMCID: PMC7287308 DOI: 10.1016/j.redox.2020.101519] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 03/08/2020] [Accepted: 03/21/2020] [Indexed: 02/06/2023] Open
Abstract
Selenium (Se) intake disequilibrium is associated with many human diseases (e.g., Keshan disease and type 2 diabetes). To understand the mechanism of Se deficiency-induced hepatic pathogenesis, a pure line pig model was established by feeding a diet with either 0.07 mg/kg Se or 0.3 mg/kg Se for 16 weeks. The hepatic metabolome, lipidome, global proteome, and whole transcriptome were analyzed. Se deficiency causes a redox imbalance via regulation of selenoproteins at both the mRNA and protein level, and blocks the glutathione anti-oxidant system along with enhanced glutathione synthesis and catabolism. The Warburg effect was observed by enhanced activation of the glycolysis and phosphate pentose pathways. The tricarboxylic acid cycle was dysfunctional since the preliminary metabolites decreased and shifted from using glycolysis origin substrates to a glutamine catabolism-preferred metabolic mode. The reprogrammed central carbon metabolism induced widely restrained lipid synthesis. In addition, a Se deficiency initiated inflammation by activating the NF-κB pathway through multiple mechanisms. These results identified the potential metabolic vulnerability of the liver in response to a Se deficiency-induced redox imbalance and possible therapeutic or intervention targets.
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Affiliation(s)
- Chaohua Tang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Shuang Li
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Kai Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Jing Li
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Yunsheng Han
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Tengfei Zhan
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Qingyu Zhao
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Xiaoqing Guo
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Junmin Zhang
- State Key Laboratory of Animal Nutrition, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China; Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China of Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences of Chinese Academy of Agricultural Sciences, Beijing, 100193, China.
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Selenoprotein S silencing triggers mouse hepatoma cells apoptosis and necrosis involving in intracellular calcium imbalance and ROS-mPTP-ATP. Biochim Biophys Acta Gen Subj 2018; 1862:2113-2123. [PMID: 30017912 DOI: 10.1016/j.bbagen.2018.07.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 06/22/2018] [Accepted: 07/04/2018] [Indexed: 12/26/2022]
Abstract
Selenoprotein S (SelenoS) is one of the cellular endoplasmic reticulum (ER) and membrane located selenoproteins, and it has the main functions of anti-oxidation, anti-apoptosis and anti-ER stress. To investigate the effect of SelenoS silencing on mouse hepatoma cell death and the intracellular biological function of SelenoS, we knocked down SelenoS in Hepa1-6 cells, and detected ER stress, intracellular calcium homeostasis, mitochondrial dynamics, apoptosis and necrosis. To further explore whether reactive oxygen species (ROS) has an effect on apoptosis and necrosis under SelenoS silencing, we used NAC (2.5 mM) to pretreat cells, and detected ΔΨm, ATP, and apoptosis and necrosis rates. SelenoS silencing broke the intracellular calcium homeostasis, induced mitochondrial dynamic disorder, ROS accumulation, loss of ΔΨm and ATP, and triggered apoptosis and necrosis in mouse hepatoma cells. The clearance of ROS alleviated the loss of ΔΨm and ATP caused by silencing of SelenoS, reduced cell necrosis and increased apoptosis. However, SelenoS silencing did not cause ER stress in Hepa1-6 cells. These results indicate that SelenoS silencing triggers mouse hepatoma cells apoptosis and necrosis through affecting intracellular calcium homeostasis and ROS-mPTP-ATP participates in cell death transformation from apoptosis to necrosis to rise damage.
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7
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Jiang ZH, Lin HJ, Yao HD, Zhang ZW, Fu J, Xu SW. SelW protects against H2O2-induced liver injury in chickens via inhibiting inflammation and apoptosis. RSC Adv 2017. [DOI: 10.1039/c6ra27911b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Selenium (Se) is recognized as a necessary trace mineral in animal diets. Se deficiency induces a number of diseases and injuries in chickens including liver damage, which is related to oxidative stress.
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Affiliation(s)
- Zhi-Hui Jiang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Hong-Jin Lin
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Hai-Dong Yao
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Zi-Wei Zhang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Jing Fu
- College of Animal Science and Technology
- Northeast Agricultural University
- Harbin 150030
- P. R. China
| | - Shi-Wen Xu
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin 150030
- P. R. China
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8
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Jiang ZH, Khoso PA, Yao HD, Zhang ZW, Zhang XY, Xu SW. SelW regulates inflammation-related cytokines in response to H2O2in Se-deficient chicken liver. RSC Adv 2015. [DOI: 10.1039/c4ra16055j] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Selenium (Se) deficiency-induced liver damage is related to oxidative stress, and the alternative transcription of cytokines has been linked to liver disease.
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Affiliation(s)
- Zhi-Hui Jiang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin
- P. R. China
- College of Veterinary Medicine
| | - Pervez Ahmed Khoso
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Hai-Dong Yao
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Zi-Wei Zhang
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Xiao-Ying Zhang
- College of Veterinary Medicine
- Northwest A&F University
- Yangling
- P. R. China
| | - Shi-wen Xu
- College of Veterinary Medicine
- Northeast Agricultural University
- Harbin
- P. R. China
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9
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Stefanello ST, Flores da Rosa EJ, Dobrachinski F, Amaral GP, Rodrigues de Carvalho N, Almeida da Luz SC, Bender CR, Schwab RS, Dornelles L, Soares FAA. Effect of diselenide administration in thioacetamide-induced acute neurological and hepatic failure in mice. Toxicol Res (Camb) 2015. [DOI: 10.1039/c4tx00166d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hepatic encephalopathy is a common complication of severe acute hepatic failure and has been associated with high short-term mortality rates.
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10
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Edaravone scavenges nitric oxide. Redox Rep 2013. [DOI: 10.1179/rer.2002.7.5.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
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11
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Pan D, Huang H. Hair selenium levels in hepatic steatosis patients. Biol Trace Elem Res 2013; 152:305-9. [PMID: 23412809 DOI: 10.1007/s12011-013-9624-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2013] [Accepted: 02/04/2013] [Indexed: 02/08/2023]
Abstract
The purpose of this study was to assess hair selenium levels of liver patients suffering from hepatic simple steatosis and non-alcoholic steatohepatitis (NASH) in central areas of China. Selenium was measured by an atomic absorption spectrophotometer equipped with the hydride generation system. The levels of selenium in healthy individuals ranged between 0.3 and 0.9 μg/g, and mean hair selenium levels in the male population and female population were 0.59 ± 0.18 and 0.57 ± 0.15 μg/g, respectively. These concentrations did not vary significantly (P > 0.05) in relation to the gender. One hundred-eighteen individuals of both sexes aged between 15 and 60 years with hepatic simple steatosis and NASH were selected for this study. The mean and standard deviation of hair selenium concentrations observed in male and female patients with hepatic simple steatosis were 0.54 ± 0.16 and 0.50 ± 0.15 μg/g, respectively, while the mean and standard deviation of hair selenium concentrations observed in male and female patients with NASH were 0.40 ± 0.14 and 0.41 ± 0.12 μg/g. Analysis of t test showed a significant difference between NASH (P < 0.001) patients in hair selenium concentrations when compared with controls.
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Affiliation(s)
- Danzhen Pan
- Department of Microbiology, Tongji Medical College, Huazhong University of Science and Technology, 13 Hangkong Road, Wuhan City, Hubei Province 430030, People's Republic of China.
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12
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Kolachi NF, Kazi TG, Afridi HI, Kazi NG, Mughal MA, Khan S. Effects of selenium and zinc status in biological samples of hepatitis C patient after herbal and pharmaceutical supplements. Biol Trace Elem Res 2013; 152:187-94. [PMID: 23412808 DOI: 10.1007/s12011-013-9617-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2012] [Accepted: 01/22/2013] [Indexed: 02/05/2023]
Abstract
The use of natural remedies and pharmacological mineral supplements for liver disease treatment has a long history. In present study, the levels of selenium (Se) and zinc (Zn) were determined in biological samples (serum and whole blood) of female hepatitis C patients (n = 132), age ranged 30-45 years, before and after 30 days treatment with herbal/pharmaceutical supplements. For comparative study, 128 age-matched female subjects, residing in the same residential areas and have socioeconomic status, were selected as referents. The Se and Zn in supplements, blood, and sera were determined by atomic absorption spectrometry. It was observed that Zn and Se in blood and serum samples of viral hepatitis C (HCV) patients were reduced in the range of 28.6-39 % and 24-36 %, respectively, as compared to those of referents. After herbal/pharmaceutical supplementations, 20.6-25.0 and 9.15-13.2 % of Zn and 10.6-12.1 and 19.6-21.4 % of Se were enhanced in sera and blood samples of HCV patients, respectively. The resulted data indicated that the levels of Se and Zn in addition to some biochemical parameters were improved in HCV patients after herbal/pharmaceutical supplementation. The effects of both supplements were not significantly different (p > 0.05).
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Affiliation(s)
- Nida F Kolachi
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro 76080, Pakistan.
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13
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Kazi TG, Kolachi NF, Afridi HI, Kazi NG, Arain SS. Effects of mineral supplementation on liver cirrhotic/cancer male patients. Biol Trace Elem Res 2012; 150:81-90. [PMID: 22968625 DOI: 10.1007/s12011-012-9501-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2012] [Accepted: 08/22/2012] [Indexed: 12/20/2022]
Abstract
The aim of the present study was to compare the levels of essential trace and toxic elements in biological samples (blood and serum) of male liver cirrhotic/cancer patients (n = 144), of age groups 30-50 years, before and after 60 days treatment with mineral supplementation. For comparison purposes, the same biological samples were also collected from healthy male subjects (n = 120) of the same age groups. The biological samples were oxidized by 65 % HNO₃/30 % H₂O₂ (2:1) in a microwave oven. The digests of all biological samples were analyzed for arsenic (As), cadmium (Cd), selenium (Se), and zinc (Zn) by electrothermal atomic absorption spectrometry. The levels of Se and Zn were lower in liver cirrhotic/cancer patients as compared to healthy individuals (p < 0.001). The patients with liver cirrhosis/cancer have twofold higher As and Cd levels in biological samples as compared to age-matched referents. Moreover, a negative correlation was observed between essential and toxic elements. The pathogenesis of liver cirrhosis/cancer has been associated with changes in the balance of certain essential trace and toxic elements. The study confirms that oral supplements of Se and Zn produce metabolic effects in patients with liver cirrhosis/cancer. It was observed that the status of essential trace elements, Se and Zn, was improved in biological samples of all patients after 60 days of treatment with mineral supplementation.
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Affiliation(s)
- Tasneem Gul Kazi
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan.
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14
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Kolachi NF, Kazi TG, Afridi HI, Kazi NG, Khan S. Investigation of essential trace and toxic elements in biological samples (blood, serum and scalp hair) of liver cirrhotic/cancer female patients before and after mineral supplementation. Clin Nutr 2012; 31:967-73. [DOI: 10.1016/j.clnu.2012.04.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Revised: 04/19/2012] [Accepted: 04/24/2012] [Indexed: 11/24/2022]
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15
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Kim IW, Bae SM, Kim YW, Liu HB, Bae SH, Choi JY, Yoon SK, Chaturvedi PK, Battogtokh G, Ahn WS. Serum selenium levels in Korean hepatoma patients. Biol Trace Elem Res 2012; 148:25-31. [PMID: 22328307 DOI: 10.1007/s12011-012-9344-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Accepted: 01/23/2012] [Indexed: 11/27/2022]
Abstract
The aim of this study was to determine serum selenium (Se) levels during the development of liver disease as well as the possible Se supplementation benefits in liver disease patients. Serum was collected from 187 patients with liver diseases and 120 normal healthy people living in Seoul. The samples were collected at the Kangnam St. Mary's Hospital College of Medicines, The Catholic University of Korea, in accordance with procedures approved by the Institutional Review Board of the Catholic University of Korea. Serum Se levels were quantified by inductively coupled plasma mass spectrometry and were compared between healthy and liver diseases patients. Se levels were 92.65 ± 32.50 μg/l in hepatitis infection, 92.33 ± 30.66 μg/l in hepatitis B virus infection and 96.41 ± 51.50 μg/l in hepatitis C virus infection, 96.42 ± 32.80 μg/l in cirrhosis, and 67.47 ± 14.30 μg/l in hepatoma patients. Findings were significantly lower in hepatitis and hepatoma as compared with the healthy participants (P < 0.001). The Se level of the healthy population was 108.38 ± 29.50, 119.37 ± 28.31 for males and 97.87 ± 26.99 μg/l for females. Our data shows the same parallelism between liver disease progression and decrease of Se levels except in the case of liver cirrhosis. And also, our study confirms the previous findings of significantly lower Se levels in Korean hepatoma patients. Se levels that decrease parallel to liver disease progression should be further integrated and analyzed with liver function blood biomarkers.
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Affiliation(s)
- In-Wook Kim
- Cancer Research Institute, Catholic Research Institute of Medical Science, College of Medicine, Catholic University of Korea, 505 Banpo-dong, Seocho-ku, Seoul, 137-701, South Korea
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16
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Rauf N, Tahir SS, Dilawar S, Ahmad I, Parvez S. Serum selenium concentration in liver cirrhotic patients suffering from hepatitis B and C in Pakistan. Biol Trace Elem Res 2012; 145:144-50. [PMID: 21898107 DOI: 10.1007/s12011-011-9182-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Accepted: 08/16/2011] [Indexed: 11/25/2022]
Abstract
High rates of hepatitis B and C are present in Pakistan. Epidemiological surveys demonstrated an inverse association between selenium (Se) level and regional cancer incidence, as well as viral infection. In this cross-sectional descriptive analytical study, serum selenium concentration of 150 patients suffering from hepatitis B and C patients, along with 26 healthy controls, was determined by atomic absorption spectrophotometer equipped with hydride generation system. The mean and standard deviation of serum selenium concentration observed in male and female patients with hepatitis C were 101.60 ± 0.55 and 77.43 ± 0.47 μg/l, respectively, while the mean and standard deviation of serum selenium concentration observed in male and female patients with hepatitis B was 107.58 ± 0.44 and 137.8 ± 0.36 μg/l. Analysis of t test showed significant difference between hepatitis C and B (P < 0.001) patients in serum selenium concentration when compared with control.
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Affiliation(s)
- Naseem Rauf
- Environmental Analytical Laboratory, Pakistan Council of Scientific & Industrial Research, Islamabad, Pakistan.
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17
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Khan MS, Dilawar S, Ali I, Rauf N. The possible role of selenium concentration in hepatitis B and C patients. Saudi J Gastroenterol 2012; 18:106-10. [PMID: 22421715 PMCID: PMC3326970 DOI: 10.4103/1319-3767.93811] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND/AIM The compelling evidence reported that selenium is an essential trace mineral for human beings. Selenium plays a pivotal role in the restoration of immune functions. High rates of hepatitis B and C are present in Pakistan. Epidemiologic surveys demonstrated an inverse association between selenium (Se) level and regional cancer incidence, as well as viral infection. The present study was designed to evaluate the concentration of selenium in the serum of patients suffering from hepatitis B and C. PATIENTS AND METHODS In this cross-sectional descriptive analytical study, serum selenium concentration of 150 patients suffering from hepatitis B and C, along with 26 healthy controls, was determined by atomic absorption spectrophotometer equipped with hydride generation system, model Analytic Jena (Vario III). RESULTS The mean and standard deviation of serum selenium concentration observed in male and female patients with hepatitis C were 101.60 ± 0.55 and 77.43 ± 0.47 μ g/L, respectively, whereas the mean and standard deviation of serum selenium concentration observed in male and female patients with hepatitis B were 107.58 ± 0.44 and 137.8 ± 0.36 μg/L. Analysis of t test showed significant difference between C and B (P<0.001) patients in serum selenium concentration, when compared with the control. CONCLUSION The obtained results indicate that serum selenium concentration of hepatitis B and C patients is less than serum selenium concentration of healthy individuals. However, serum selenium decline is relative to severity of disease. Based on findings of this study, it is proposed that selenium should be supplemented in such patients in order to optimize nutritional support and to get better treatment response.
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Affiliation(s)
- Mohammad S. Khan
- Department of Biochemistry, Bannu Medical College, Khyber Pakhtunkhwa, Bannu, Pakistan,Address for correspondence: Dr. Mohammad Shoaib Khan, Department of Biochemistry, Bannu Medical College, Khyber Pakhtunkhwa, Bannu, Pakistan. E-mail:
| | - Shahnaz Dilawar
- Department of Biochemistry, Bannu Medical College, Khyber Pakhtunkhwa, Bannu, Pakistan
| | - Irshad Ali
- Department of Biochemistry, Gomal University Dera Ismail Khan Khyber Pakhtunkhwa, Pakistan
| | - Naseem Rauf
- National Physical Standard laboratories, Islamabad, Pakistan
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Martínez-Peinado M, Nogueras-López F, Arcos-Cebrián A, Agil A, Navarro-Alarcón M. Serum selenium levels in cirrhotic patients are not influenced by the disease severity index. Nutr Res 2011; 30:574-8. [PMID: 20851312 DOI: 10.1016/j.nutres.2010.08.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 08/13/2010] [Accepted: 08/17/2010] [Indexed: 11/25/2022]
Abstract
Selenium (Se) is an antioxidant element that protects against cellular damage by reactive oxygen species. Therefore, total serum Se concentration may reflect protection during the development of cirrhosis, an oxidative stress-related disease. We hypothesized that serum Se levels are diminished in cirrhotic patients due to their enhanced oxidative stress, and serum Se levels are reduced the most in patients with the highest severity of cirrhosis. A case-control study was performed to determine whether cirrhosis is associated with changes in serum Se levels. Blood samples from 30 healthy controls and 93 cirrhotic patients were analyzed for total serum Se by hydride generation atomic absorption spectrometry. The Child-Pugh index score was used to evaluate the severity of liver disease. The mean serum Se concentration was significantly lower in patients vs controls (0.721 ± 0.239 vs 0.926 ± 0.241 μmol/L; P = .001). Mean serum Se levels were not significantly lower in patients with higher severity of cirrhosis (0.691 ± 0.229 vs 0.755 ± 0.255 μmol/L; P = .144). A positive and significant correlation was found between age and serum Se levels in patients (r = 0.277, P = .007). Patients showed significant sex differences in serum Se level (higher in male) and severity index (higher in female). The significantly decreased serum Se level in patients indicates that the Se component of the antioxidant system is severely impaired in cirrhosis. However, serum Se levels were not influenced by the severity of the disease.
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Affiliation(s)
- Manuel Martínez-Peinado
- Department of Nutrition and Food Science, School of Pharmacy, University of Granada, E-18071 Granada, Spain
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19
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Morine MJ, McMonagle J, Toomey S, Reynolds CM, Moloney AP, Gormley IC, Gaora PO, Roche HM. Bi-directional gene set enrichment and canonical correlation analysis identify key diet-sensitive pathways and biomarkers of metabolic syndrome. BMC Bioinformatics 2010; 11:499. [PMID: 20929581 PMCID: PMC3098081 DOI: 10.1186/1471-2105-11-499] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2009] [Accepted: 10/07/2010] [Indexed: 11/25/2022] Open
Abstract
Background Currently, a number of bioinformatics methods are available to generate appropriate lists of genes from a microarray experiment. While these lists represent an accurate primary analysis of the data, fewer options exist to contextualise those lists. The development and validation of such methods is crucial to the wider application of microarray technology in the clinical setting. Two key challenges in clinical bioinformatics involve appropriate statistical modelling of dynamic transcriptomic changes, and extraction of clinically relevant meaning from very large datasets. Results Here, we apply an approach to gene set enrichment analysis that allows for detection of bi-directional enrichment within a gene set. Furthermore, we apply canonical correlation analysis and Fisher's exact test, using plasma marker data with known clinical relevance to aid identification of the most important gene and pathway changes in our transcriptomic dataset. After a 28-day dietary intervention with high-CLA beef, a range of plasma markers indicated a marked improvement in the metabolic health of genetically obese mice. Tissue transcriptomic profiles indicated that the effects were most dramatic in liver (1270 genes significantly changed; p < 0.05), followed by muscle (601 genes) and adipose (16 genes). Results from modified GSEA showed that the high-CLA beef diet affected diverse biological processes across the three tissues, and that the majority of pathway changes reached significance only with the bi-directional test. Combining the liver tissue microarray results with plasma marker data revealed 110 CLA-sensitive genes showing strong canonical correlation with one or more plasma markers of metabolic health, and 9 significantly overrepresented pathways among this set; each of these pathways was also significantly changed by the high-CLA diet. Closer inspection of two of these pathways - selenoamino acid metabolism and steroid biosynthesis - illustrated clear diet-sensitive changes in constituent genes, as well as strong correlations between gene expression and plasma markers of metabolic syndrome independent of the dietary effect. Conclusion Bi-directional gene set enrichment analysis more accurately reflects dynamic regulatory behaviour in biochemical pathways, and as such highlighted biologically relevant changes that were not detected using a traditional approach. In such cases where transcriptomic response to treatment is exceptionally large, canonical correlation analysis in conjunction with Fisher's exact test highlights the subset of pathways showing strongest correlation with the clinical markers of interest. In this case, we have identified selenoamino acid metabolism and steroid biosynthesis as key pathways mediating the observed relationship between metabolic health and high-CLA beef. These results indicate that this type of analysis has the potential to generate novel transcriptome-based biomarkers of disease.
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Affiliation(s)
- Melissa J Morine
- Nutrigenomics Research Group, School of Public Health, UCD Conway Institute of Biomolecular & Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
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20
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Kabirov K, Kapetanovic I, Lyubimov A. Direct determination of selenium in rat blood plasma by Zeeman atomic absorption spectrometry. Chem Biol Interact 2008; 171:152-8. [DOI: 10.1016/j.cbi.2007.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2007] [Revised: 11/23/2007] [Accepted: 11/23/2007] [Indexed: 10/22/2022]
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21
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AL-Rawi MM. Inhibitory Effect of Melatonin on Histological Changes Induced in Rat Liver by Thioacetamide Intoxication. ACTA ACUST UNITED AC 2006. [DOI: 10.3923/jbs.2007.10.18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Matsumoto KI, Ui I, Satoh K, Tobe T, Ushio F, Endo K. Evaluation of oxidative damage in the liver of selenium-deficient rats. Redox Rep 2003; 7:351-4. [PMID: 12688528 DOI: 10.1179/135100002125000974] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
Previous studies have implied a relationship between Se-deficiency and oxidative stress. In the present study, the occurrence of oxidative stress due to Se-deficiency was investigated by evaluating the age dependence of growth and indices of oxidative damage for the liver of Se-deficient (SeD) rats. The ratios of liver weight to body weight of the SeD rats were greater than those of the normal rats. The values of AST and ALT (clinical indices of liver damage) were higher in the SeD rats than the normal ones especially in the young (6-12 weeks of age). The TBARS level of the 4-week-old SeD group were higher than the normal group while the level decreased with age. Conversely, the TBARS level of the normal group gradually increased and became higher than SeD group in older rats (12-20 weeks of age). Vitamin E rather than vitamin C may be consumed during oxidative stress due to Se-deficiency. Damage induced by Se-deficiency may be related to growth and the mechanisms of this damage may alter with age.
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Affiliation(s)
- Ken-ichiro Matsumoto
- Department of Physical Chemistry, Showa Pharmaceutical University, Machida, Tokyo, Japan
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23
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Navarro-Alarcón M, López-Ga de la Serrana H, Pérez-Valero V, López-Martínez MC. Selenium concentrations in serum of individuals with liver diseases (cirrhosis or hepatitis): relationship with some nutritional and biochemical markers. THE SCIENCE OF THE TOTAL ENVIRONMENT 2002; 291:135-141. [PMID: 12150433 DOI: 10.1016/s0048-9697(01)01088-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Serum concentrations were measured in individuals (n = 50) with liver diseases (cirrhosis and hepatitis) by hydride generation atomic absorption spectrometry in a cross-sectional study. Mean serum selenium levels determined in patients with cirrhosis (n = 12) or with hepatitis (n = 38) were significantly lower (P<0.01) than those measured in control groups mainly due to a decreased liver function. Mean serum selenium concentrations were significantly lower in cirrhotic individuals when compared with patients with hepatitis (P<0.05). Therefore, the severity of the live injury is a factor conditioning the impairment in the selenium body status observed in individuals with hepatopathies. In hepatic patients serum total cholesterol levels showed a significant correlation with serum selenium concentrations (r=0.912, P<0.05) demonstrating the important role of selenium as an antioxidant agent; similarly, gamma-glutamic-transferase levels were significantly correlated with the serum selenium levels (r=-0.803, P<0.05) indicating that when the intensity of the hepatic injury increases (enhancement in serum GGT levels) concomitantly the serum selenium levels decrease significantly. No significant relationships between serum selenium levels and sex or age of patients were observed.
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Affiliation(s)
- M Navarro-Alarcón
- Department of Nutrition and Bromatology, Faculty of Pharmacy, University of Granada, Spain.
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24
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Abul H, Mathew TC, Dashti HM, Al-Bader A. Level of superoxide dismutase, glutathione peroxidase and uric acid in thioacetamide-induced cirrhotic rats. Anat Histol Embryol 2002; 31:66-71. [PMID: 12047241 DOI: 10.1046/j.1439-0264.2002.00359.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Levels of superoxide dismutase and glutathione peroxidase were determined in blood and hepatic tissues of thioacetamide-induced cirrhotic rats and compared to levels in age-matched control animals. The plasma level of uric acid was also determined in these animals. A general decrease was noticed in the level of all the antioxidants examined as compared to the control. This decrease was statistically significant in the level of all the antioxidants studied, except for the level of superoxide dismutase in blood. A decrease in the antioxidant level may indicate an increase in free radical level and thereby an increase in cellular damage in cirrhotic rats. The changes in the level of antioxidants showed a direct correlation with the changes in the level of trace elements observed in our previous studies. These studies suggest that antioxidants alone or in combination with trace elements may have beneficial effects in treating liver cirrhosis.
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Affiliation(s)
- H Abul
- Department of Pharmacology, Faculty of Medicine, Kuwait University Health Sciences Centre, Safat
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25
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Abul HT, Mathew TC, Abul F, Al-Sayer H, Dashti HM. Antioxidant enzyme level in the testes of cirrhotic rats. Nutrition 2002; 18:56-9. [PMID: 11827766 DOI: 10.1016/s0899-9007(01)00743-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVES An understanding of the tissue and organ level of antioxidant enzymes that scavenge reactive oxygen species may provide an indication of their susceptibility to free radical-related cytotoxic damage. A direct association between testicular production of excessive reactive oxygen species and male infertility has been noted. We measured the activities of superoxide dismutase and glutathione peroxidase in the testes of thioacetamide-induced cirrhotic rats. METHODS Antioxidant enzyme activities and trace element levels (copper, zinc, manganese, and selenium) in the testes of thioacetamide-induced cirrhotic and control rats were measured. The statistical difference between the experimental and control groups with regard to the activities of superoxide dismutase and glutathione peroxidase and levels of trace elements was analyzed with Student's t test. RESULTS Our results showed a significant decrease in the activity of these enzymes in the testes of cirrhotic rats. The testicular levels of copper, zinc, and manganese, which are associated with these antioxidant enzymes, increased, whereas selenium decreased slightly in cirrhotic rats; that decrease was not statistically significant. CONCLUSIONS Our studies showed a drastic decrease in the level of antioxidant enzymes in the testes of cirrhotic rats that could have deleterious effects on sperm function in these animals. Further studies are necessary to understand the exact pathways of trace element metabolism in the testes of cirrhotic rats.
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Affiliation(s)
- Habib T Abul
- Department of Pharmacology, Kuwait University Health Sciences Center, Safat, Kuwait
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Balkan J, Doğru-Abbasoğlu S, Kanbağli O, Cevikbaş U, Aykaç-Toker G, Uysal M. Taurine has a protective effect against thioacetamide-induced liver cirrhosis by decreasing oxidative stress. Hum Exp Toxicol 2001; 20:251-4. [PMID: 11476157 DOI: 10.1191/096032701678227758] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Thioacetamide (TAA) administration (0.3 g/l of tap water for a period of 3 months) to rats resulted in hepatic cirrhosis as assessed by biochemical and histopathological findings. This treatment caused an increase in the levels of malondialdehyde (MDA) and diene conjugates (DCs) and a decrease in the levels of glutathione (GSH), vitamin E, vitamin C and the activities of glutathione peroxidase (GSH-Px) in the liver of rats. Superoxide dismutase (SOD) activities were unchanged. Taurine (2% w/w, added to the chow diet) was administered together with TAA (0.3 g/l of drinking water) for 3 months. Taurine was found to decrease TAA-induced hepatic lipid peroxidation and to increase TAA-depleted vitamin E levels and GSH-Px activities. Histopathological findings also suggested that taurine has an inhibitive effect on TAA-induced hepatic cirrhosis. These results indicate that taurine treatment has a protective effect against TAA-induced liver cirrhosis by decreasing oxidative stress.
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Affiliation(s)
- J Balkan
- Department of Biochemistry, Istanbul Medical Faculty, University of Istanbul, Capa, Turkey
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Matsumoto K, Inagaki T, Hirunuma R, Enomoto S, Endo K. Contents and uptake rates of Mn, Fe, Co, Zn, and Se in Se-deficient rat liver cell fractions. ANAL SCI 2001; 17:587-91. [PMID: 11708137 DOI: 10.2116/analsci.17.587] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The contents of manganese (Mn), iron (Fe), cobalt (Co), zinc (Zn), and selenium (Se) in nuclear (NU), mitochondrial (MT), microsomal (MC), and cytosolic (CS) fractions of liver homogenates of normal and selenium-deficient (SeD) rats were determined by instrumental neutron activation analysis (INAA). The uptake rates of these elements in the liver cell fractions of both groups of rats were determined by multitracer analysis (MTA). The results indicated that Se-deficiency caused a significant increase in the content of Fe in the MC fractions. The MTA showed that the uptake rate of Fe was highest in the MC fraction, and that the uptake rate in the fraction was similar between the SeD and normal rats.
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Affiliation(s)
- K Matsumoto
- Department of Physical Chemistry, Showa Pharmaceutical University, 3-3165 Higashi-Tamagawagakuen, Machida, Tokyo 194-8543, Japan.
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Al-Bader A, Mathew TC, Abul H, Al-Sayer H, Singal PK, Dashti HM. Cholangiocarcinoma and liver cirrhosis in relation to changes due to thioacetamide. Mol Cell Biochem 2000; 208:1-10. [PMID: 10939622 DOI: 10.1023/a:1007082515548] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Different doses of thioacetamide (0.05%, 0.1% and 0.15%) were used to induce liver cirrhosis in Wistar rats. Thioacetamide at 0.5% caused cirrhosis by the twelfth week of treatment. A severe bile duct proliferation and cholangiocarcinoma was seen at longer intervals. Animals treated with higher doses (0.1% and 0.15%) of thioacetamide developed more severe intense degenerative changes in the liver and died in the twelfth and eighth week respectively. The serum and tissue contents of Zn and Cu changed in a characteristic fashion that was consistent with the severity of the liver damage. Serum Zn and Cu concentrations were at their lowest in the animals that developed severe degenerative liver and died at higher dose (0.15%) of thioacetamide. This study indicates that treatment of rats with 0.05% thiocetamide is more effective and appropriate for the induction of liver cirrhosis. Continued administration of the drug at this dosage led to the development of further changes in the liver. This model may be suitable for studying these long term changes that occur in the liver and lead to cirrhosis. Events that precede the development of severe bile duct proliferation and cholangiocarcinoma may also be studied.
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Affiliation(s)
- A Al-Bader
- Department of Pathology, Faculty of Allied Health Sciences and Nursing, Kuwait University Health Sciences Center, Safat
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al-Bader A, Mathew TC, Khoursheed M, Asfar S, al-Sayer H, Dashti HM. Thioacetamide toxicity and the spleen: histological and biochemical analysis. Anat Histol Embryol 2000; 29:3-8. [PMID: 10820895 DOI: 10.1046/j.1439-0264.2000.00207.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Exposure to thioacetamide is associated with the development of liver cirrhosis in experimental animals. In addition to liver, thioacetamide toxicity has been observed in other organs. In this study, the toxic effect of thioacetamide on the spleen was investigated at 0, 4, 8 and 12 weeks post-treatment durations. The level of tissue copper and selenium increased until the eighth week when a significant drop was observed. The zinc level was also increased but returned back to normal by week 8, thereafter it showed further increase. Calculation of the copper/zinc ratio showed an increase, but, recovered and returned to normal value by week 12. The level of manganese fluctuated until the eighth week. It then increased rapidly. Histological studies of the spleen tissue showed a significant increase in extramedullary haematopoiesis in the red pulp region and marked hyperplasia in the marginal zone and follicles. The results of this study, demonstrate an intimate association between trace element levels and spleen pathology, as observed in studies of other organs.
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Affiliation(s)
- A al-Bader
- Department of Pathology, Faculty of Medicine, Kuwait University Health Sciences Center, Safat, Kuwait.
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