1
|
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.
Collapse
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.
| |
Collapse
|
2
|
Das SK, Ali M, Shetake NG, Pandey BN, Kumar A. Thorium Alters Lung Surfactant Protein Expression in Alveolar Epithelial Cells: In Vitro and In Vivo Investigation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:12330-12342. [PMID: 38772857 DOI: 10.1021/acs.est.4c00254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
Thorium-232 (Th), the most abundant naturally occurring nuclear fuel, has been identified as a sustainable source of energy. In view of its large-scale utilization and human evidence of lung disorders and carcinogenicity, it is imperative to understand the effect of Th exposure on lung cells. The present study investigated the effect of Th-dioxide (1-100 μg/mL, 24-48 h) on expression of surfactant proteins (SPs) (SP-A, SP-B, SP-C, and SP-D, which are essential to maintain lung's surface tension and host-defense) in human lung cells (WI26 and A549), representative of alveolar cell type-I and type-II, respectively. Results demonstrated the inhibitory effect of Th on transcriptional expression of SP-A, SP-B, and SP-C. However, Th promoted the mRNA expression of SP-D in A549 and reduced its expression in WI26. To a significant extent, the effect of Th on SPs was found to be in accordance with their protein levels. Moreover, Th exposure altered the extracellular release of SP-D/A from A549, which remained unaltered in WI26. Our results suggested the differential role of oxidative stress and ATM and HSP90 signaling in Th-induced alterations of SPs. These effects of Th were found to be consistent in lung tissues of mice exposed to Th aerosols, suggesting a potential role of SPs in Th-associated lung disorders.
Collapse
Affiliation(s)
- Sourav Kumar Das
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Manjoor Ali
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
| | - Neena Girish Shetake
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Badri Narain Pandey
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Amit Kumar
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400 085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| |
Collapse
|
3
|
Yadav R, Das SK, Ali M, Shetake NG, Pandey BN, Kumar A. Mechanistic insights into Thorium-232 induced liver carcinogenesis: The driving role of Wnt/β-catenin signaling pathway. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 907:168065. [PMID: 37884152 DOI: 10.1016/j.scitotenv.2023.168065] [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: 05/02/2023] [Revised: 09/29/2023] [Accepted: 10/21/2023] [Indexed: 10/28/2023]
Abstract
Thorium-232 (Th-232), a naturally-occurring radioactive element with high potential of nuclear fuel is now being utilized in advanced nuclear reactors for CO2-free energy generation. To achieve all-round capability in Th-fuel cycle for health and environment, understanding the biological effects of Th-232 at cellular and molecular level are extremely important. The present study investigated long-term effects (6 and 12 months) of Th-232 (4, 10 and 20 mg/kg) on gene expression in mice liver (major target organ). Analysis of differentially expressed genes (DEGs, ≥2.0 folds, p < 0.05) showed that with the increase of Th dose (4 to 20 mg/kg), the number of upregulated DEGs increased and the number of downregulated DEGs decreased significantly. A significant number of upregulated DEGs (10 genes in 6 months and 14 genes in 12 months) were found common between 4 and 20 mg/kg. Gene Ontology analysis revealed significant (Padj ~ 10-6-10-28) enrichment of upregulated DEGs for metabolic process, signal transduction, cell death, cell cycle and cell proliferation. KEGG pathway analysis showed DEGs significantly enriched in several cancer-related pathways including hepatocellular carcinoma (HCC). Protein-protein interaction analysis further revealed statistically significant functional interaction (p-value ~10-6-10-10) among the proteins of HCC, which identified β-catenin as one of the most significant signaling nodes in association with myc, an oncogene and p53, a tumor suppressor. Importantly, these results were corroborated by quantitative real time-polymerase chain reaction and western blotting in liver tissues of animals exposed to Th-232. This study insights Wnt/β-catenin signaling network attributable to drive Th-induced liver carcinogenesis, which may have significant implications for management of long-term effects of Th-232.
Collapse
Affiliation(s)
- Rakhee Yadav
- Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India; Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Sourav Kumar Das
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Manjoor Ali
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Neena G Shetake
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Badri N Pandey
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India
| | - Amit Kumar
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai 400 094, India.
| |
Collapse
|
4
|
Sharma S, Ali M, Kumar A, Rawat N. Combined Thermodynamic, Theoretical, and Biological Study for Investigating N-(2-Acetamido)iminodiacetic Acid as a Potential Thorium Decorporation Agent. Inorg Chem 2023; 62:18887-18900. [PMID: 37922372 DOI: 10.1021/acs.inorgchem.3c02296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2023]
Abstract
The most effective approach to mitigate the toxic effects of internal exposure of radiometals to humans is metal-ligand (ML) chelation therapy. Thorium (Th)-induced carcinogenesis as well as other health hazards to humans as a result of chronic internal exposure necessitates the development of efficient Th-decorporating agents. In this regard, chemical and biological studies were carried out to evaluate N-(2-Acetamido)iminodiacetic acid (ADA), a comparatively cost-effective, readily available, and biologically safe complexing agent for Th decorporation. In the present work, detailed thermodynamic studies for complexation of ADA with Th(IV) have been carried out to understand Th-ADA interaction, using potentiometry, calorimetry, electrospray ionization mass spectrometry, and theoretical studies, followed by its biological assessment for Th decorporation. Thermodynamic studies revealed the formation of strong Th-ADA complexes, which are enthalpically as well as entropically favored. Interestingly, density functional theory calculations, to obtain a thermodynamically favored mode of coordination, showed the uncommon trend of lower denticity of ADA in ML than in ML2, which has been explained on the basis of stabilization of ML by hydrogen bonding. The same was also reflected in the unusual trend of enthalpy for Th-ADA complexes. Biological experiments using human erythrocytes, whole human blood, and lung cells showed good cytocompatibility and ability of ADA to significantly prevent Th-induced hemolysis. Th removal of ADA from erythrocytes, human blood, and normal lung cells was found to be comparable with that of diethylenetriamine pentaacetate (DTPA), an FDA approved decorporating agent. The present study contributed significant data about Th complexation chemistry of ADA and its Th decorporation efficacy from human erythrocytes, blood, and lung cells.
Collapse
Affiliation(s)
- Shikha Sharma
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Manjoor Ali
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Amit Kumar
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| | - Neetika Rawat
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai 400085, India
| |
Collapse
|
5
|
Yadav R, Das SK, Ali M, Pandey BN, Kumar A. Role of calcium ion channels and cytoskeletal proteins in Thorium-232 induced toxicity in normal human liver cells (WRL 68) and its validation in swiss mice. CHEMOSPHERE 2022; 288:132557. [PMID: 34653484 DOI: 10.1016/j.chemosphere.2021.132557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 09/17/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
Hepatic disorders reported in humans exposed to Thorium-232 (Th-232) rationalizes the present study investigating the toxicological response of normal human liver cells (WRL 68) and its validation in Swiss mice. Cell count analysis of WRL 68 cells-treated with Th-nitrate (1-200 μM) estimated IC50 of ∼24 μM (at 24 h) and 35 μM (at 48 h). Analysis of cell viability (trypan blue assay) showed the IC50 of ∼172 μM. Phase contrast bright-field microscopy revealed Th-induced morphological changes and cell-released microvesicle-like structures in extracellular space. Th-estimation by ICP-MS (Inductively-coupled plasma mass-spectrometry) showed uptake of Th by cells as a function of concentration and incubation time. Employing DTPA as a chelating agent in cell harvesting solution, cell-internalized/strongly-bound Th was estimated to be ∼42% of total incubated Th. Th-uptake studies in the presence of ion-channel specific inhibitors (e.g. nifedipine, thapsigargin) revealed the role of plasma membrane calcium channels and cytoplasmic calcium in modulating the Th-uptake. Transmission electron microscopy of Th-treated cells showed cell-derived extracellular vesicles, alterations in the shape and size of nucleus and mitochondria as well as cytoplasmic inclusions. The order of Th accumulation in various sub-cellular protein fractions was found to be as cytoskeleton (43%) > cytoplasmic (15%) > chromatin (7%) > nuclear (5%) & membrane (5%). Immunofluorescence analysis of WRL 68 cells showed that Th significantly altered the expression of cytoskeleton proteins (F-actin and keratin), which was further validated in liver tissues of Swiss mice administered with Th-232. Findings herein highlight the role of calcium channels and cytoskeleton in Th-induced toxicity. Keywords: Thorium toxicity; Liver cells; Calcium channels; Sub-cellular targets, Cytoskeleton; Swiss Mice.
Collapse
Affiliation(s)
- Rakhee Yadav
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
| | - Sourav Kumar Das
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Manjoor Ali
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Badri N Pandey
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India
| | - Amit Kumar
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India; Homi Bhabha National Institute, Anushaktinagar, Mumbai, 400 094, India.
| |
Collapse
|
6
|
Sawminathan S, Kulathu Iyer S. Phenanthridine based rapid "turn-on" fluorescent sensor for selective detection of Th 4+ ion and its real-time application. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 265:120403. [PMID: 34562860 DOI: 10.1016/j.saa.2021.120403] [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: 07/11/2021] [Revised: 08/27/2021] [Accepted: 09/11/2021] [Indexed: 06/13/2023]
Abstract
A new and highly sensitive and selective phenanthridine based sensor, 9-(7,8,13,14-tetrahydrodibenzo[a,i]phenanthridin-5-yl)benzo[h]quinolin-10-ol (PHBQ), was developed for the fluorescent ''turn-on'' detection of Th4+ ion in acetonitrile: water (8:2) medium. The fluorescence intensity of PHBQ diminished in the region of pH 1 to 3 and could be recovered by adjusting the pH to above 4. The sensor PHBQ showed distinct spectral changes in response to Th4+ ion over other competitive metal ions. The fluorescence displayed good linearity with the Th4+ concentration in the equivalence of 0-0.5 equivalents. The detection limit was calculated to be as low as 99 nM, which was less than that of previously reported sensors. The recognizing mechanism of PHBQ towards Th4+ was investigated in detail using HR-MS, NMR, and IR spectroscopy. The economically viable Whatman filter paper was fabricated with PHBQ to develop a paper-based fluorescence kit to detect the Th4+ in an aqueous medium efficiently. Furthermore, the application of sensor ligand in fluorescence imaging was studied in E-coli cells due to its minimal cytotoxicity and good optical properties. The obtained data suggest that the ligand PHBQ can be used as a fluorescent sensor for tracking Th4+ in multiple applications.
Collapse
Affiliation(s)
- Sathish Sawminathan
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632014, India
| | | |
Collapse
|
7
|
Das SK, Ali M, Shetake NG, Dumpala RMR, Pandey BN, Kumar A. Mechanism of thorium-nitrate and thorium-dioxide induced cytotoxicity in normal human lung epithelial cells (WI26): Role of oxidative stress, HSPs and DNA damage. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 281:116969. [PMID: 33845224 DOI: 10.1016/j.envpol.2021.116969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/01/2021] [Accepted: 03/16/2021] [Indexed: 06/12/2023]
Abstract
Inhalation represents the most prevalent route of exposure with Thorium-232 compounds (Th-nitrate/Th-dioxide)/Th-containing dust in real occupational scenario. The present study investigated the mechanism of Th response in normal human alveolar epithelial cells (WI26), exposed to Th-nitrate or colloidal Th-dioxide (1-100 μg/ml, 24-72 h). Assessment in terms of changes in cell morphology, cell proliferation (cell count), plasma membrane integrity (lactate dehydrogenase leakage) and mitochondrial metabolic activity (MTT reduction) showed that Th-dioxide was quantitatively more deleterious than Th-nitrate to WI26 cells. TEM and immunofluorescence analysis suggested that Th-dioxide followed a clathrin/caveolin-mediated endocytosis, however, membrane perforation/non-endocytosis seemed to be the mode of Th internalization in cells exposed to Th-nitrate. Th-estimation by ICP-MS showed significantly higher uptake of Th in cells treated with Th-dioxide than with Th-nitrate at a given concentration. Both Th-dioxide and nitrate were found to increase the level of reactive oxygen species, which seemed to be responsible for lipid peroxidation, alteration in mitochondrial membrane potential and DNA-damage. Amongst HSPs, the protein levels of HSP70 and HSP90 were affected differentially by Th-nitrate/dioxide. Specific inhibitors of ATM (KU55933) or HSP90 (17AAG) were found to increase the Th- cytotoxicity suggesting prosurvival role of these signaling molecules in rescuing the cells from Th-toxicity.
Collapse
Affiliation(s)
- Sourav Kumar Das
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Manjoor Ali
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Neena G Shetake
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Rama Mohan R Dumpala
- Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Badri N Pandey
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400 094, India
| | - Amit Kumar
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai, 400 094, India.
| |
Collapse
|
8
|
Dumpala RMR, Das SK, Ali M, Boda A, Kumar P, Rawat N, Kumar A, Ali SM. Characterization of Thorium-Pyrazinoic acid complexation and its decorporation efficacy in human cells and blood. CHEMOSPHERE 2021; 271:129547. [PMID: 33445029 DOI: 10.1016/j.chemosphere.2021.129547] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 12/30/2020] [Accepted: 01/01/2021] [Indexed: 06/12/2023]
Abstract
Thorium (Th) exposure to the human beings is a radiochemical hazard and the chelation therapy by suitable drugs is the major prevention approach to deal with. The present studies aimed at usage of pyrazinoic acid (PCA), which is a prodrug to treat tuberculosis, for its usage as decorporating agent for thorium from human body. The present studies provide a comprehensive knowledge on the chemical interaction and biological efficacy of pyrazinoic acid (PCA) for decorporation of Thorium from the human body. The thermodynamic parameters for Th-PCA speciation are determined by both experiment and theory. The potentiometric data analysis and Electro-Spray Ionization Mass Spectrometry (ESI-MS) studies revealed the formation of MLi (i = 1-4) species with the decrease in stepwise stability constants. All the species formations are endothermic reactions and are predominantly entropy-driven. Biological experiments using human erythrocytes, whole blood and normal human lung cells showed cytocompatibility and decorporation ability of PCA for Thorium. Density functional calculations have been carried out to get insights on interaction process at molecular level. The experimental results and theoretical predictions found to be in line with each other. Present findings on complexation of Th by PCA and its evaluation in human cells and blood would further motivate determination of its safety levels and decorporation efficacy in animal models.
Collapse
Affiliation(s)
| | - Sourav Kumar Das
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, 400094, India
| | - Manjoor Ali
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, 400094, India
| | - Anil Boda
- Chemical Engineering Division, Bhabha Atomic Research Centre, Mumbai, 400094, India
| | - Pranaw Kumar
- Fuel Chemistry Division, Bhabha Atomic Research Centre, Mumbai, 400094, India
| | - Neetika Rawat
- Radiochemistry Division, Bhabha Atomic Research Centre, Mumbai, 400094, India
| | - Amit Kumar
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Mumbai, 400094, India.
| | - Sk Musharaf Ali
- Chemical Engineering Division, Bhabha Atomic Research Centre, Mumbai, 400094, India
| |
Collapse
|
9
|
Abdel-Rahman M, Rezk MM, Ahmed-Farid OA, Essam S, Abdel Moneim AE. Saussurea lappa root extract ameliorates the hazards effect of thorium induced oxidative stress and neuroendocrine alterations in adult male rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:13237-13246. [PMID: 32016872 DOI: 10.1007/s11356-020-07917-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 01/28/2020] [Indexed: 06/10/2023]
Abstract
The present study was aimed to estimating the effect of Saussurea lappa (costus) root extract on thorium accumulation in different brain regions (cerebral cortex, cerebellum, and hypothalamus) of adult male albino rats and also to evaluate the antioxidant effect and thyroid gland modulation activity of costus following thorium toxicity. Adult male rats were randomly allocated into four groups; control group receiving saline (0.9% NaCl), thorium group receiving an intraperitoneal (i.p.) injection of thorium nitrate (Th; 6.3 mg/kg bwt), costus group receiving an oral administration of costus extract at 200 mg/kg bwt and costus + thorium group receiving costus 1 h before thorium injection. Thorium injection in rats for 28 days resulted in the accumulation of Th maximally in the cerebellum followed by the cerebral cortex and then in the hypothalamus. The accumulation of Th was associated with significant disturbance in sodium and potassium ions. A significant decrease in monoamines was also observed in different brain regions. Furthermore, the results indicated that Th-induced oxidative stress evidenced by increased lipid peroxidation and nitric oxide and decrease the glutathione content. Additionally, Th caused a significant increase in thyroid-stimulating hormone (TSH), triiodothyronine (T3), and thyroxine (T4) levels in the serum of rats. However, the pre-administration of costus alleviated all of those disturbances. Our results revealed that costus extract exerted its protective effect mainly through potentiating the antioxidant defense system.
Collapse
Affiliation(s)
- Mona Abdel-Rahman
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Mohamed M Rezk
- Isotopes Department, Nuclear Materials Authority, Cairo, Egypt
| | - Omar A Ahmed-Farid
- Department of Physiology, National Organization for Drug Control and Research (NODCAR), Giza, Giza Governorate, Egypt
| | - Safia Essam
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt
| | - Ahmed E Abdel Moneim
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt.
| |
Collapse
|
10
|
Yadav R, Pandey BN, Kumar A. Estimation and in-situ detection of thorium in human liver cell culture by arsenazo-III based colorimetric assay. Biometals 2020; 33:75-85. [DOI: 10.1007/s10534-019-00231-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 12/11/2019] [Indexed: 12/19/2022]
|
11
|
da F Iwahara LK, de Oliveira MS, de Alencar MAV. Evaluation of the effect of three constituent metals of monazita on the radiosensibility of human osteoblasts. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2019; 208-209:106011. [PMID: 31288125 DOI: 10.1016/j.jenvrad.2019.106011] [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: 08/09/2018] [Revised: 06/17/2019] [Accepted: 07/03/2019] [Indexed: 06/09/2023]
Abstract
Thorium has gained notoriety in recent years, as a potential source of nuclear energy, substituting uranium in power plants. Monazite is an important source of thorium, as well of uranium and rare earths elements. Workers involved in the extraction and manipulation of this mineral are occupationally exposed to a range of metal mixtures containing thorium and to ionizing radiation. As an osteotropic substance, thorium is mostly deposited in bone tissue and may interfere in cellular radiosensitivity. A human osteoblast cell line was used to evaluate the effects of thorium (Th), cerium (Ce) and lanthanum (La) on cell radiosensivity, using proliferation as indicator. Assays were performed using cell cultures exposed to metals alone and metals combined with ionizing radiation. No stimulus of proliferation was observed when samples were exposed to metals or radiation alone. On the other hand, the metals were able to influence cell radiosensivity, in a concentration-dependent manner when metals and radiation were applied simultaneously. Samples irradiated and exposed to metals combinations revealed an interaction between them in all the tested arrangements (Th-Ce, Th-La, Th-Ce-La). All interactions proved to be of the antagonist type relative to the proliferation indicator, with a higher degree seen for the Th-Ce association. Such results showed the possibility that metal mixtures together with radiation may produce combined effects on osteoblasts, through modifications on the degree of radiosensivity. The results indicate the possibility of an enhancement in occupational risk for workers that manipulate monazite byproducts. Thus, the development of risk assessment models that include the evaluation of mixtures and their cytotoxic and radiotoxic effects on tissues and organs must be highlighted.
Collapse
Affiliation(s)
- Lucas K da F Iwahara
- Dosimetry Division, Radiation Protection and Dosimetry Institute, Av. Salvador Allende, s/no. Barra da Tijuca, Rio de Janeiro, CEP 22783-127l, Brazil.
| | - Monica S de Oliveira
- Dosimetry Division, Radiation Protection and Dosimetry Institute, Av. Salvador Allende, s/no. Barra da Tijuca, Rio de Janeiro, CEP 22783-127l, Brazil
| | - Marcus A V de Alencar
- Dosimetry Division, Radiation Protection and Dosimetry Institute, Av. Salvador Allende, s/no. Barra da Tijuca, Rio de Janeiro, CEP 22783-127l, Brazil
| |
Collapse
|
12
|
Abdel-Rahman M, Rezk MM, Abdel Moneim AE, Ahmed-Farid OA, Essam S. Thorium exerts hazardous effects on some neurotransmitters and thyroid hormones in adult male rats. Naunyn Schmiedebergs Arch Pharmacol 2019; 393:167-176. [DOI: 10.1007/s00210-019-01718-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 08/23/2019] [Indexed: 12/12/2022]
|
13
|
Martakov IS, Shevchenko OG, Torlopov MA, Gerasimov EY, Sitnikov PA. Formation of gallic acid layer on γ-AlOOH nanoparticles surface and their antioxidant and membrane-protective activity. J Inorg Biochem 2019; 199:110782. [PMID: 31362175 DOI: 10.1016/j.jinorgbio.2019.110782] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 06/11/2019] [Accepted: 07/15/2019] [Indexed: 01/24/2023]
Abstract
In the reported study we prepared gallic acid modified γ-AlOOH nanoparticles. We proposed mechanism of phenolic compounds binding on the alumina, suggesting covalent and electrostatic interactions. Most of the properties of alumina nanoparticles (NPs) are unchanged, but there is partial reduction of surface charge. Prepared samples are colloidally stable hydrosols. It allowed us to perform biological studies on cellular and non-cellular models, which showed nontoxicity of both pure and hybrid γ-AlOOH nanoparticles. Furthermore, pure alumina NPs exhibit antioxidant properties, which are enhanced after gallic acid immobilization on their surface. Also, hybrid alumina-gallic acid NPs showed membrane-protective activity.
Collapse
Affiliation(s)
- I S Martakov
- Institute of Chemistry of Komi Scientific Centre of the Ural Branch of the Russian Academy of Sciences, 167000, Syktyvkar, 48 Pervomayskaya St., Russian Federation.
| | - O G Shevchenko
- Institute of Biology of Komi Scientific Centre of the Ural Branch of the Russian Academy of Sciences, 167982 Syktyvkar, 28 Kommunisticheskaya St., Russian Federation
| | - M A Torlopov
- Institute of Chemistry of Komi Scientific Centre of the Ural Branch of the Russian Academy of Sciences, 167000, Syktyvkar, 48 Pervomayskaya St., Russian Federation
| | - E Yu Gerasimov
- Boreskov Institute of Catalysis SB RAS, 5 Lavrentieva Av., 630090 Novosibirsk, Russian Federation
| | - P A Sitnikov
- Institute of Chemistry of Komi Scientific Centre of the Ural Branch of the Russian Academy of Sciences, 167000, Syktyvkar, 48 Pervomayskaya St., Russian Federation
| |
Collapse
|
14
|
Creff G, Zurita C, Jeanson A, Carle G, Vidaud C, Den Auwer C. What do we know about actinides-proteins interactions? RADIOCHIM ACTA 2019. [DOI: 10.1515/ract-2019-3120] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Abstract
Since the early 40s when the first research related to the development of the atomic bomb began for the Manhattan Project, actinides (An) and their association with the use of nuclear energy for civil applications, such as in the generation of electricity, have been a constant source of interest and fear. In 1962, the first Society of Toxicology (SOT), led by H. Hodge, was established at the University of Rochester (USA). It was commissioned as part of the Manhattan Project to assess the impact of nuclear weapons production on workers’ health. As a result of this initiative, the retention and excretion rates of radioactive heavy metals, their physiological impact in the event of acute exposure and their main biological targets were assessed. In this context, the scientific community began to focus on the role of proteins in the transportation and in vivo accumulation of An. The first studies focused on the identification of these proteins. Thereafter, the continuous development of physico-chemical characterization techniques has made it possible to go further and specify the modes of interaction with proteins from both a thermodynamic and structural point of view, as well as from the point of view of their biological activity. This article reviews the work performed in this area since the Manhattan Project. It is divided into three parts: first, the identification of the most affine proteins; second, the study of the affinity and structure of protein-An complexes; and third, the impact of actinide ligation on protein conformation and function.
Collapse
Affiliation(s)
- Gaëlle Creff
- Université Côte d’Azur, CNRS, UMR 7272, Institut de Chimie de Nice , 06108 Nice , France
| | - Cyril Zurita
- Université Côte d’Azur, CNRS, UMR 7272, Institut de Chimie de Nice , 06108 Nice , France
| | - Aurélie Jeanson
- Université Côte d’Azur, CNRS, UMR 7272, Institut de Chimie de Nice , 06108 Nice , France
| | - Georges Carle
- Université Côte d’Azur, CEA, UMR E-4320 TIRO-MATOs , 06100 Nice , France
| | - Claude Vidaud
- CEA DRF, CNRS, UMR 7265, Institut de Biosciences et Biotechnologies d’Aix-Marseille , 13108 Saint-Paul-lez-Durance , France
| | - Christophe Den Auwer
- Université Côte d’Azur, CNRS, UMR 7272, Institut de Chimie de Nice , 06108 Nice , France
| |
Collapse
|
15
|
Götzke L, Schaper G, März J, Kaden P, Huittinen N, Stumpf T, Kammerlander KK, Brunner E, Hahn P, Mehnert A, Kersting B, Henle T, Lindoy LF, Zanoni G, Weigand JJ. Coordination chemistry of f-block metal ions with ligands bearing bio-relevant functional groups. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.01.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
16
|
Ali M, Sadhu B, Boda A, Tiwari N, Das A, Musharaf Ali SK, Bhattacharya D, Pandey BN, Kumar A. Thorium decorporation efficacy of rationally-selected biocompatible compounds with relevance to human application. JOURNAL OF HAZARDOUS MATERIALS 2019; 365:952-961. [PMID: 30616306 DOI: 10.1016/j.jhazmat.2018.11.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 09/26/2018] [Accepted: 11/10/2018] [Indexed: 06/09/2023]
Abstract
During civil, nuclear or defense activities, internal contamination of actinides in humans and mitigation of their toxic impacts are of serious concern. Considering the health hazards of thorium (Th) internalization, an attempt was made to examine the potential of ten rationally-selected compounds/formulations to decorporate Th ions from physiological systems. The Th-induced hemolysis assay with human erythrocytes revealed good potential of tiron, silibin (SLB), phytic acid (PA) and Liv.52® (L52) for Th decorporation, in comparison to diethylenetriaminepentaacetic acid, an FDA-approved decorporation drug. This was further validated by decorporation experiments with relevant human cell models (erythrocytes and liver cells) and biological fluid (blood) under pre-/post-treatment conditions, using inductively coupled plasma mass spectrometry (ICP-MS) and transmission electron microscopy (TEM). Furthermore, density functional theory-based calculations and extended X-ray absorption fine structure (EXAFS) spectroscopy confirmed the formation of Th complex by these agents. Amongst the chosen biocompatible agents, tiron, SLB, PA and L52 hold promise to enhance Th decorporation for human application.
Collapse
Affiliation(s)
- Manjoor Ali
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Biswajit Sadhu
- Radiation Safety Systems Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Anil Boda
- Chemical Engineering Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Nidhi Tiwari
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Amit Das
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - S K Musharaf Ali
- Chemical Engineering Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Dibyendu Bhattacharya
- Atomic & Molecular Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Badri N Pandey
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India
| | - Amit Kumar
- Radiation Biology & Health Sciences Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400 085, India.
| |
Collapse
|
17
|
Rezk MM. A Neuro-Comparative Study between Single/Successive Thorium Dose Intoxication and Alginate Treatment. Biol Trace Elem Res 2018; 185:414-423. [PMID: 29594947 DOI: 10.1007/s12011-018-1262-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 02/01/2018] [Indexed: 10/17/2022]
Abstract
The adult male albino rats were grouped into five groups (control group and four variably treated groups with thorium (Th) in single or successive with or without alginate treatment). The IP administration of thorium nitrate (13.6 mg/kg b.wt.) induced a regional distribution and accumulation ordered as cerebellum > cerebral cortex > brain stem > hippocampus > hypothalamus > striatum. Also, it induces a significant increase in Na+, Ca2+, and Fe3+ ion content and malondialdehyde (MDA) level while K+ ions and glutathione (GSH) level were significantly decreased. On the other hand, the daily oral administration of 5% alginate showed a significant decreasing in the accumulation of thorium in the different brain areas and mitigated its hazardous effects. By the alginate treatment, Na+, Ca2+, Fe3+, and level of MDA were declined while K+ ions and GSH level showed a significant increase. The improvement of the investigated parameters was attributed to the specific chelating, regeneration, and antioxidant properties of the alginate. So, alginate administration could ameliorate the hazardous effects of thorium nitrate.
Collapse
Affiliation(s)
- Mohamed M Rezk
- Isotopes Department, Nuclear Materials Authority, Cairo, Egypt.
| |
Collapse
|
18
|
Shevchenko OG, Plyusnina SN. The role of interspecies differences in the ratio of choline-containing phospholipid fractions of rodent erythrocytes in response of these cells to the effect of membranotropic compounds. J EVOL BIOCHEM PHYS+ 2017. [DOI: 10.1134/s0022093017040068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
19
|
Kumar A, Ali M, Ningthoujam RS, Gaikwad P, Kumar M, Nath BB, Pandey BN. The interaction of actinide and lanthanide ions with hemoglobin and its relevance to human and environmental toxicology. JOURNAL OF HAZARDOUS MATERIALS 2016; 307:281-293. [PMID: 26799219 DOI: 10.1016/j.jhazmat.2015.12.029] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 12/09/2015] [Accepted: 12/16/2015] [Indexed: 06/05/2023]
Abstract
Due to increasing use of lanthanides/actinides in nuclear and civil applications, understanding the impact of these metal ions on human health and environment is a growing concern. Hemoglobin (Hb), which occurs in all the kingdom of living organism, is the most abundant protein in human blood. In present study, effect of lanthanides and actinides [thorium: Th(IV), uranium: U(VI), lanthanum: La(III), cerium: Ce(III) and (IV)] on the structure and function of Hb has been investigated. Results showed that these metal ions, except Ce(IV) interacted with carbonyl and amide groups of Hb, which resulted in the loss of its alpha-helix conformation. However, beyond 75μM, these ions affected heme moiety. Metal-heme interaction was found to affect oxygen-binding of Hb, which seems to be governed by their closeness with the charge-to-ionic-radius ratio of iron(III). Consistently, Ce(IV) being closest to iron(III), exhibited a greater effect on heme. Binding constant and binding stoichiometry of Th(IV) were higher than that of U(VI). Experiments using aquatic midge Chironomus (possessing human homologous Hb) and human blood, further validated metal-Hb interaction and associated toxicity. Thus, present study provides a biochemical basis to understand the actinide/lanthanide-induced interference in heme, which may have significant implications for the medical and environmental management of lanthanides/actinides toxicity.
Collapse
Affiliation(s)
- Amit Kumar
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India.
| | - Manjoor Ali
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | | | - Pallavi Gaikwad
- Department of Zoology, Savitribai Phule Pune University, Pune 411 007, Mumbai, India
| | - Mukesh Kumar
- Solid State, Physics Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| | - Bimalendu B Nath
- Department of Zoology, Savitribai Phule Pune University, Pune 411 007, Mumbai, India
| | - Badri N Pandey
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 400 085, India
| |
Collapse
|
20
|
Ali M, Kumar A, Kumar M, Pandey BN. The interaction of human serum albumin with selected lanthanide and actinide ions: Binding affinities, protein unfolding and conformational changes. Biochimie 2016; 123:117-29. [PMID: 26821345 DOI: 10.1016/j.biochi.2016.01.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 01/22/2016] [Indexed: 10/22/2022]
Abstract
Human serum albumin (HSA), the most abundant soluble protein in blood plays critical roles in transportation of biomolecules and maintenance of osmotic pressure. In view of increasing applications of lanthanides- and actinides-based materials in nuclear energy, space, industries and medical applications, the risk of exposure with these metal ions is a growing concern for human health. In present study, binding interaction of actinides/lanthanides [thorium: Th(IV), uranium: U(VI), lanthanum: La(III), cerium: Ce(III) and (IV)] with HSA and its structural consequences have been investigated. Ultraviolet-visible, Fourier transform-infrared, Raman, Fluorescence and Circular dichroism spectroscopic techniques were applied to study the site of metal ions interaction, binding affinity determination and the effect of metal ions on protein unfolding and HSA conformation. Results showed that these metal ions interacted with carbonyl (CO..:)/amide(N..-H) groups and induced exposure of aromatic residues of HSA. The fluorescence analysis indicated that the actinide binding altered the microenvironment around Trp214 in the subdomain IIA. Binding affinity of U(VI) to HSA was slightly higher than that of Th(IV). Actinides and Ce(IV) altered the secondary conformation of HSA with a significant decrease of α-helix and an increase of β-sheet, turn and random coil structures, indicating a partial unfolding of HSA. A correlation was observed between metal ion's ability to alter HSA conformation and protein unfolding. Both cationic effects and coordination ability of metal ions seemed to determine the consequences of their interaction with HSA. Present study improves our understanding about the protein interaction of these heavy ions and their impact on its secondary structure. In addition, binding characteristics may have important implications for the development of rational antidote for the medical management of health effects of actinides and lanthanides.
Collapse
Affiliation(s)
- Manjoor Ali
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 85, India
| | - Amit Kumar
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 85, India.
| | - Mukesh Kumar
- Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai 85, India
| | - Badri N Pandey
- Radiation Biology and Health Sciences Division, Bhabha Atomic Research Centre, Mumbai 85, India
| |
Collapse
|
21
|
Mukherjee R, Saha M, Routray A, Chakraborty C. Nanoscale Surface Characterization of Human Erythrocytes by Atomic Force Microscopy: A Critical Review. IEEE Trans Nanobioscience 2015; 14:625-33. [PMID: 25935044 DOI: 10.1109/tnb.2015.2424674] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Erythrocytes (red blood cells, RBCs), the most common type of blood cells in humans are well known for their ability in transporting oxygen to the whole body through hemoglobin. Alterations in their membrane skeletal proteins modify shape and mechanical properties resulting in several diseases. Atomic force microscopy (AFM), a new emerging technique allows non-invasive imaging of cell, its membrane and characterization of surface roughness at micrometer/nanometer resolution with minimal sample preparation. AFM imaging provides direct measurement of single cell morphology, its alteration and quantitative data on surface properties. Hence, AFM studies of human RBCs have picked up pace in the last decade. The aim of this paper is to review the various applications of AFM for characterization of human RBCs topology. AFM has been used for studying surface characteristics like nanostructure of membranes, cytoskeleton, microstructure, fluidity, vascular endothelium, etc., of human RBCs. Various modes of AFM imaging has been used to measure surface properties like stiffness, roughness, and elasticity. Topological alterations of erythrocytes in response to different pathological conditions have also been investigated by AFM. Thus, AFM-based studies and application of image processing techniques can effectively provide detailed insights about the morphology and membrane properties of human erythrocytes at nanoscale.
Collapse
|
22
|
Hussain A, Samad A, Singh SK, Ahsan MN, Haque MW, Faruk A, Ahmed FJ. Nanoemulsion gel-based topical delivery of an antifungal drug:in vitroactivity andin vivoevaluation. Drug Deliv 2014; 23:642-47. [DOI: 10.3109/10717544.2014.933284] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
23
|
Ali M, Kumar A, Pandey BN. Thorium induced cytoproliferative effect in human liver cell HepG2: Role of insulin-like growth factor 1 receptor and downstream signaling. Chem Biol Interact 2014; 211:29-35. [DOI: 10.1016/j.cbi.2014.01.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Revised: 01/01/2014] [Accepted: 01/09/2014] [Indexed: 01/06/2023]
|
24
|
Shevchenko OG, Plyusnina SN, Shishkina LN, Chukicheva IY, Fedorova IV, Kuchin AV. Membrane-protective properties of isobornylphenols-a new class of antioxidants. BIOCHEMISTRY MOSCOW SUPPLEMENT SERIES A-MEMBRANE AND CELL BIOLOGY 2013. [DOI: 10.1134/s1990747812060062] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
25
|
Kumar A, Sharma P, Ali M, Pandey BN, Mishra KP. Decorporation and therapeutic efficacy of liposomal-DTPA against thorium-induced toxicity in the Wistar rat. Int J Radiat Biol 2011; 88:223-9. [DOI: 10.3109/09553002.2011.634883] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|