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Chen G, Li Y, Miao Y, Liu B. Recent developments on bismuth oxyhalide-based functional nanomaterials for biomedical applications. Biomater Sci 2022; 10:5809-5830. [DOI: 10.1039/d2bm01182d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multifunctional bismuth oxyhalide (BiOX, X = F, Cl, Br, and I) nanomaterials have great potential advantages in medical diagnostic and therapeutic applications. Pure BiOX nanomaterials have some limitations such as...
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Sabbioni E, Groppi F, Di Gioacchino M, Petrarca C, Manenti S. Metallobiochemistry of ultratrace levels of bismuth in the rat I. Metabolic patterns of 205+206Bi 3+ in the blood. J Trace Elem Med Biol 2021; 68:126760. [PMID: 33895056 DOI: 10.1016/j.jtemb.2021.126760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 02/22/2021] [Accepted: 04/12/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND The number of the applications of bismuth (Bi) is rapidly and remarkably increasing, enhancing the chance to increase the levels to which humans are normally daily exposed. The interest to Bi comes also from the potential of Bi-based nanoparticles (BiNPs) for industrial and biomedical purposes. Like other metal-based NPs used in nanomedicine, BiNPs may release ultratrace amounts of Bi ions when injected. The metabolic fate and toxicity of these ions still needs to be evaluated. At present, knowledge of Bi metabolism in laboratory animals refers almost solely to studies under unnatural "extreme" exposures, i.e. pharmacologically relevant high-doses (up to thousand mg kg-1) in relation to its medical use, or infinitesimal-doses (pg kg-1 as non-carrier-added Bi radioisotopes) for radiobiology protection, diagnostic and radiotherapeutic purposes. No specific study exists on the "metabolic patterns" in animal models exposed to levels of Bi, i.e. at "environmental dose exposure" that reflect the human daily exposure (μg kg-1). METHODOLOGY Rats were intraperitoneally injected with 0.8 μg Bi kg-1 bw as 205+206Bi(NO)3 alone or in combination with 59Fe for radiolabelling of iron proteins. The use of 205+206Bi radiotracers allowed the detection and measurement down to pg fg-1 of the element in the blood biochemical compartments and protein fractions as isolated by differential centrifugation, size exclusion- and ion exchange chromatography, electrophoresis, solvent extraction, precipitation and dialysis. RESULTS 24 h after the administration, the blood concentration of Bi was 0.18 ng mL-1, with a repartition plasma/red blod cells (RBC) in a ratio of 2:1. Elution profiles of plasma from gel filtration on Sephadex G-150 showed four pools of Bi-binder proteins with different molecular sizes (> 300 kDa, 160 kDa, 70 kDa and < 6.5 kDa). In the 70 kDa fraction transferrin and albumin were identified as biomolecule carriers for Bi. In red blood cells, Bi was distributed between cytosol and membranes (ghosts) in a ratio of about 5:1. In the cytosol, low molecular components (LMWC) and the hemoglobin associated the Bi in a ratio of about 1.8:1. In the hemoglobin molecule, Bi was bound to the beta polypeptide chain of the globin. In the ghosts, Bi was detected at more than one site of the protein fraction, with no binding with lipids. Dialysis experiments and the consistently high recovery (80-90 %) of 206Bi from chromatography of 206Bi-containing biocomponents suggest that Bi was firmly complexed at physiological pH with a low degree of breaking during the applications of experimental protocols for the isolation of the 206Bi-biocomplexes. These latter were sensitive to acid buffer pH 5, and to the presence of complexing agents in the dialysis fluid. CONCLUSIONS On the basis of an environmental biochemical toxicology approach, we have undertaken a study on the metabolic patterns of Bi3+ ions in rats at tissue, subcellular and molecular level with the identification of cellular Bi-binding components. As a first part of the study the present work reports the results concerned with the metabolic fate of ultratrace levels of 205+206Bi(NO)3 in the blood.
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Affiliation(s)
- Enrico Sabbioni
- Center for Advanced Studies and Technology (C.A.S.T.), "G. d'Annunzio" University of Chieti-Pescara, Via Luigi Polacchi 11, Chieti, I-66100, Italy; LASA, Department of Physics, Università Degli Studi di Milano and INFN-Milano, Via F.lli Cervi 201, Segrate, MI, I-20090, Italy
| | - Flavia Groppi
- Department of Physics, Università Degli Studi di Milano, Via Celoria 16, Milano, I-20133, Italy; LASA, Department of Physics, Università Degli Studi di Milano and INFN-Milano, Via F.lli Cervi 201, Segrate, MI, I-20090, Italy
| | - Mario Di Gioacchino
- Center for Advanced Studies and Technology (C.A.S.T.), "G. d'Annunzio" University of Chieti-Pescara, Via Luigi Polacchi 11, Chieti, I-66100, Italy; Institute of Clinical Immunotherapy and Advanced Biological Treatments, Piazza Pierangeli 1, Pescara, Rectorate of Leonardo da Vinci Telematic University, Largo San Rocco 11 Torrevecchia Teatina, CH, Italy
| | - Claudia Petrarca
- Center for Advanced Studies and Technology (C.A.S.T.), "G. d'Annunzio" University of Chieti-Pescara, Via Luigi Polacchi 11, Chieti, I-66100, Italy; Department of Medicine and Aging Sciences, "G. d'Annunzio" University of Chieti-Pescara, via Luigi Polacchi 11, Chieti, I-66100, Italy
| | - Simone Manenti
- Department of Physics, Università Degli Studi di Milano, Via Celoria 16, Milano, I-20133, Italy; LASA, Department of Physics, Università Degli Studi di Milano and INFN-Milano, Via F.lli Cervi 201, Segrate, MI, I-20090, Italy.
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Mohammed TA, Meier CM, Kalvoda T, Kalt M, Rulíšek L, Shoshan MS. Potent Cyclic Tetrapeptide for Lead Detoxification. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202103217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tagwa A. Mohammed
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Christoph M. Meier
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Tadeáš Kalvoda
- Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovo náměstí 2 16610 Praha 6 Czech Republic
| | - Martina Kalt
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Lubomír Rulíšek
- Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovo náměstí 2 16610 Praha 6 Czech Republic
| | - Michal S. Shoshan
- Department of Chemistry University of Zurich Winterthurerstrasse 190 8057 Zurich Switzerland
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Mohammed TA, Meier CM, Kalvoda T, Kalt M, Rulíšek L, Shoshan MS. Potent Cyclic Tetrapeptide for Lead Detoxification. Angew Chem Int Ed Engl 2021; 60:12381-12385. [PMID: 33759306 DOI: 10.1002/anie.202103217] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Indexed: 11/05/2022]
Abstract
Lead (Pb) is a ubiquitous poisonous metal, affecting the health of vast populations worldwide. Medications to treat Pb poisoning suffer from various limitations and are often toxic owing to insufficient metal selectivity. Here, we report a cyclic tetrapeptide that selectively binds Pb and eradicates its toxic effect on the cellular level, with superior potency than state-of-the-art drugs. The Pb-peptide complex is remarkably strong and was characterized experimentally and computationally. Accompanied by the lack of toxicity and enhanced stability of this peptide, these qualities indicate its merit as a potential remedy for Pb poisoning.
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Affiliation(s)
- Tagwa A Mohammed
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Christoph M Meier
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Tadeáš Kalvoda
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610, Praha 6, Czech Republic
| | - Martina Kalt
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Lubomír Rulíšek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí 2, 16610, Praha 6, Czech Republic
| | - Michal S Shoshan
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
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Keattanong P, Wasukan N, Kuno M, Srisung S. Synthesis, structural characterization, computational studies and stability evaluations of metal ions and ZnONPs complexes with dimercaptosuccinic acid. Heliyon 2021; 7:e05962. [PMID: 33553730 PMCID: PMC7851782 DOI: 10.1016/j.heliyon.2021.e05962] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/12/2020] [Accepted: 01/08/2021] [Indexed: 11/18/2022] Open
Abstract
Meso-2,3-dimercaptosuccinic acid (DMSA) is one of the efficient chelating reagents for treating the toxicity of several heavy metals. Currently, nanomaterial have been applied to various parts including zinc Oxide nanoparticles (ZnONPs). ZnONPs have several properties and are used as many applications. An increasing the amount of ZnONPs in commercial products causes risks related to free radicals or reactive oxygen species (ROS) in the body, leading to oxidative stress and eventually to the cancer process. In the present work, we mainly focused on the study of DMSA complexes in term of metal ions and nanoparticles. The synthesis of DMSA-ZnONPs by the co-precipitation method were determined, followed by Scanning Electron Microscope, Fourier Transform Infrared Spectroscopy and UV-Vis spectrophotometry confirming successful synthesis process. The stability study of the DMSA complexes with metal ions and ZnONPs were determined and evaluated the stability constant (K), with the Benesi- Hildebrand equation. All complexes with DMSA were formed at a 1:2 ratio by the dithiol group and the carboxyl group with different stability constants. Therefore, these results can help of an understanding of the interaction and its behavior between DMSA with heavy metal ion and ZnONPs. In addition, the stable structure of DMSA and metal ion complexes were predicted using the B3LYP and the 6-31G (d,p) basis set which the most stable structure of meso-DMSA was 2R,3S conformation and the metal ions and DMSA complexes was complex 2a with the binding energy of -1553.46 kcal mol-1.
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Affiliation(s)
- Poonyawee Keattanong
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumwit 23, Wattana District, Bangkok, 10110, Thailand
| | - Nootcharin Wasukan
- National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Mayuso Kuno
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumwit 23, Wattana District, Bangkok, 10110, Thailand
| | - Sujittra Srisung
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumwit 23, Wattana District, Bangkok, 10110, Thailand
- Corresponding author.
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Scheuerlein MC, Ensinger W. Development of a nanoscale electroless plating procedure for bismuth and its application in template-assisted nanotube fabrication. RSC Adv 2021; 11:8636-8642. [PMID: 35423366 PMCID: PMC8695131 DOI: 10.1039/d1ra00978h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 02/16/2021] [Indexed: 12/22/2022] Open
Abstract
Electroless plating is a versatile technique for the facile and controlled synthesis of metallic thin films and nanostructures. While there are numerous known procedures involving transition metals, reports on the electroless plating of post-transition metals are particularly rare, even without considering specific nanofabrication requirements. In this work we outline the development of a remarkably stable electroless plating bath for nanoscale bismuth coatings, based on the reduction of Bi–EDTA by borane dimethylamine. Its suitability for nanostructure fabrication is showcased by coating ion-track etched polycarbonate membranes, creating Bi tubes with sub-micron diameters in the process. This procedure could be particularly useful for the development and improvement of high surface-area Bi based catalysts and heavy metal sensors. We outline the development of a remarkably stable electroless bismuth plating bath. Its nanofabrication potential is showcased by coating ion-track etched polymer membranes, enabling the synthesis of sub-micron diameter bismuth tubes.![]()
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Affiliation(s)
| | - Wolfgang Ensinger
- Department of Materials and Earth Sciences
- Technical University of Darmstadt
- D-64287 Darmstadt
- Germany
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Bjørklund G, Crisponi G, Nurchi VM, Cappai R, Buha Djordjevic A, Aaseth J. A Review on Coordination Properties of Thiol-Containing Chelating Agents Towards Mercury, Cadmium, and Lead. Molecules 2019; 24:E3247. [PMID: 31489907 PMCID: PMC6767255 DOI: 10.3390/molecules24183247] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/26/2019] [Accepted: 08/31/2019] [Indexed: 11/17/2022] Open
Abstract
The present article reviews the clinical use of thiol-based metal chelators in intoxications and overexposure with mercury (Hg), cadmium (Cd), and lead (Pb). Currently, very few commercially available pharmaceuticals can successfully reduce or prevent the toxicity of these metals. The metal chelator meso-2,3-dimercaptosuccinic acid (DMSA) is considerably less toxic than the classical agent British anti-Lewisite (BAL, 2,3-dimercaptopropanol) and is the recommended agent in poisonings with Pb and organic Hg. Its toxicity is also lower than that of DMPS (dimercaptopropane sulfonate), although DMPS is the recommended agent in acute poisonings with Hg salts. It is suggested that intracellular Cd deposits and cerebral deposits of inorganic Hg, to some extent, can be mobilized by a combination of antidotes, but clinical experience with such combinations are lacking. Alpha-lipoic acid (α-LA) has been suggested for toxic metal detoxification but is not considered a drug of choice in clinical practice. The molecular mechanisms and chemical equilibria of complex formation of the chelators with the metal ions Hg2+, Cd2+, and Pb2+ are reviewed since insight into these reactions can provide a basis for further development of therapeutics.
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Affiliation(s)
- Geir Bjørklund
- Council for Nutritional and Environmental Medicine, N-8610 Mo i Rana, Norway.
| | - Guido Crisponi
- Cittadella Universitaria, University of Cagliari, 09042 Cagliari, Italy.
| | - Valeria Marina Nurchi
- Department of Life and Environmental Sciences, University of Cagliari, 09042 Cagliari, Italy.
| | - Rosita Cappai
- Department of Life and Environmental Sciences, University of Cagliari, 09042 Cagliari, Italy.
| | - Aleksandra Buha Djordjevic
- Department of Toxicology "Akademik Danilo Soldatović", Faculty of Pharmacy, University of Belgrade, 11000 Belgrade, Serbia.
| | - Jan Aaseth
- Research Department, Innlandet Hospital, N-2380 Brumunddal, Norway.
- Inland Norway University of Applied Sciences, N-2411 Elverum, Norway.
- IM Sechenov First Moscow State Medical University (Sechenov University), 119146 Moscow, Russia.
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Kaviani S, Shahab S, Sheikhi M, Ahmadianarog M. DFT study on the selective complexation of meso-2,3-dimercaptosuccinic acid with toxic metal ions (Cd2+, Hg2+ and Pb2+) for pharmaceutical and biological applications. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.027] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Aaseth J, Ajsuvakova OP, Skalny AV, Skalnaya MG, Tinkov AA. Chelator combination as therapeutic strategy in mercury and lead poisonings. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.12.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Zhang X, Qin B, Deng J, Wells M. Whole-cell bioreporters and risk assessment of environmental pollution: A proof-of-concept study using lead. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 229:902-910. [PMID: 28779895 DOI: 10.1016/j.envpol.2017.07.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 07/02/2017] [Accepted: 07/21/2017] [Indexed: 06/07/2023]
Abstract
As the world burden of environmental contamination increases, it is of the utmost importance to develop streamlined approaches to environmental risk assessment in order to prioritize mitigation measures. Whole-cell biosensors or bioreporters and speciation modeling have both become of increasing interest to determine the bioavailability of pollutants, as bioavailability is increasingly in use as an indicator of risk. Herein, we examine whether bioreporter results are able to reflect expectations based on chemical reactivity and speciation modeling, with the hope to extend the research into a wider framework of risk assessment. We study a specific test case concerning the bioavailability of lead (Pb) in aqueous environments containing Pb-complexing ligands. Ligands studied include ethylene diamine tetra-acetic acid (EDTA), meso-2,3 dimercaptosuccinic acid (DMSA), leucine, methionine, cysteine, glutathione, and humic acid (HA), and we also performed experiments using natural water samples from Lake Tai (Taihu), the third largest lake in China. We find that EDTA, DMSA, cysteine, glutathione, and HA amendment significantly reduced Pb bioavailability with increasing ligand concentration according to a log-sigmoid trend. Increasing dissolved organic carbon in Taihu water also had the same effect, whereas leucine and methionine had no notable effect on bioavailability at the concentrations tested. We find that bioreporter results are in accord with the reduction of aqueous Pb2+ that we expect from the relative complexation affinities of the different ligands tested. For EDTA and HA, for which reasonably accurate ionization and complexation constants are known, speciation modeling is in agreement with bioreporter response to within the level of uncertainty recognised as reasonable by the United States Environmental Protection Agency for speciation-based risk assessment applications. These findings represent a first step toward using bioreporter technology to streamline the biological confirmation or validation of speciation modeling for use in environmental risk assessment.
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Affiliation(s)
- Xiaokai Zhang
- Department of Environmental Science, Xi'an Jiaotong-Liverpool University, Suzhou, Jiangsu 215123, People's Republic of China; Department of Environmental Science, University of Liverpool, Brownlow Hill, Liverpool L69 7ZX, United Kingdom
| | - Boqiang Qin
- Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China
| | - Jianming Deng
- Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China
| | - Mona Wells
- Department of Environmental Science, Xi'an Jiaotong-Liverpool University, Suzhou, Jiangsu 215123, People's Republic of China; Department of Environmental Science, University of Liverpool, Brownlow Hill, Liverpool L69 7ZX, United Kingdom.
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Sisombath NS, Jalilehvand F, Schell AC, Wu Q. Lead(II) binding to the chelating agent D-penicillamine in aqueous solution. Inorg Chem 2014; 53:12459-68. [PMID: 25385465 PMCID: PMC4250370 DOI: 10.1021/ic5018714] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Indexed: 11/28/2022]
Abstract
A spectroscopic investigation of the complexes formed between the Pb(II) ion and D-penicillamine (H2Pen), a chelating agent used in the treatment of lead poisoning, was carried out on two sets of alkaline aqueous solutions with CPb(II) ≈ 10 and 100 mM, varying the H2Pen/Pb(II) molar ratio (2.0, 3.0, 4.0, 10.0). Ultraviolet-visible (UV-vis) spectra of the 10 mM Pb(II) solutions consistently showed an absorption peak at 298 nm for S(-) → Pb(II) ligand-to-metal charge-transfer. The downfield (13)C NMR chemical shift for the penicillamine COO(-) group confirmed Pb(II) coordination. The (207)Pb NMR chemical shifts were confined to a narrow range between 1806 ppm and 1873 ppm for all Pb(II)-penicillamine solutions, indicating only small variations in the speciation, even in large penicillamine excess. Those chemical shifts are considerably deshielded, relative to the solid-state (207)Pb NMR isotropic chemical shift of 909 ppm obtained for crystalline penicillaminatolead(II) with Pb(S,N,O-Pen) coordination. The Pb LIII-edge extended X-ray absorption fine structure (EXAFS) spectra obtained for these solutions were well-modeled with two Pb-S and two Pb-(N/O) bonds with mean distances 2.64 ± 0.04 Å and 2.45 ± 0.04 Å, respectively. The combined spectroscopic results, reporting δ((207)Pb) ≈ 1870 ppm and λmax ≈ 298 nm for a Pb(II)S2NO site, are consistent with a dominating 1:2 lead(II):penicillamine complex with [Pb(S,N,O-Pen)(S-HnPen)](2-n) (n = 0-1) coordination in alkaline solutions, and provide useful structural information on how penicillamine can function as an antidote against lead toxicity in vivo.
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Affiliation(s)
- Natalie S. Sisombath
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Farideh Jalilehvand
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Adam C. Schell
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Qiao Wu
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
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Sorption of toxic metal ions by solid sorbents: A predictive speciation approach based on complex formation constants in aqueous solution. Coord Chem Rev 2012. [DOI: 10.1016/j.ccr.2011.09.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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13
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Hamada YZ, Harris WR. Stability constants and multinuclear NMR measurements of phosphonic acid derivatives with aluminum in aqueous solutions. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2005.11.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Tandon SK, Singh S, Prasad S, Srivastava S, Siddiqui MKJ. Reversal of lead-induced oxidative stress by chelating agent, antioxidant, or their combination in the rat. ENVIRONMENTAL RESEARCH 2002; 90:61-66. [PMID: 12359191 DOI: 10.1006/enrs.2002.4386] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The influence of N-acetyl cysteine (NAC), an antioxidant, on the therapeutic efficacy of meso-2,3-dimercaptosuccinic acid (DMSA), a hydrophilic, and its ester, monoisoamyl 2,3-dimercaptosuccinate (MiADMS), a lipophilic, both soft tissue lead mobilizers, was investigated in lead-preexposed rats. The subsequent treatment of lead-exposed animals with DMSA, MiADMS, or NAC reversed the lead-induced alterations in blood delta-aminolevulinic acid dehydratase, catalase, malondialdehyde (MDA), reduced glutathione, oxidized glutathione, and brain MDA levels. The combined treatment with DMSA and NAC was more effective than that with MiADMS and NAC in enhancing the restoration of all these parameters indicative of lead-induced oxidative stress. These reversals were consistent with the lead-removing ability of DMSA and MiADMS but not that of NAC. As the reversal of these parameters by NAC was independent of its lead-mobilizing capability, this ought to be mainly due to its strong antioxidant property. The increase in blood and brain zinc levels upon lead exposure appears to be the result of the redistribution of endogenous zinc due to lead. Subsequent treatment with DMSA, MiADMS, NAC, or their combination decreased the brain zinc as its excretable complexes with a transient increase in blood zinc level. The ideal treatment of lead poisoning seems to be a combination of a lead chelator and an antioxidant.
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Affiliation(s)
- S K Tandon
- Chemical Toxicology, Industrial Toxicology Research Center, 80, Lucknow 226001, India.
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Crisponi G, Diaz A, Nurchi VM, Pivetta T, Tapia Estévez MJ. Equilibrium study on Cd(II) and Zn(II) chelates of mercapto carboxylic acids. Polyhedron 2002. [DOI: 10.1016/s0277-5387(02)00973-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Crisponi G, Cristiani F, Nurchi VM, Pinna R, Tapia Estévez MJ. Equilibrium study on Pd(II) chelates of mercapto carboxylic acids. Polyhedron 1999. [DOI: 10.1016/s0277-5387(99)00261-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jones MM, Singh PK, Kostial K, Blanusa M, Piasek M, Restek-Samarozija N. Comparative in vivo lead mobilization of meso- and rac-2,3-dimercaptosuccinic acids in albino Wistar rats. PHARMACOLOGY & TOXICOLOGY 1997; 80:182-6. [PMID: 9140137 DOI: 10.1111/j.1600-0773.1997.tb00393.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Comparison of the racemic and meso forms of 2,3-dimercaptosuccinic acid (DMSA) in lead mobilization from lead-loaded albino Wistar rats demonstrates that the racemic form is significantly more effective in reducing femur lead levels. After four oral doses at 0.5 mmol/kg, femur lead levels were reduced to 87% of control values by meso-DMSA and to 50% of control levels by rac-DMSA. Similarly, when the dose was increased to 1.0 mmol/kg, femur lead levels were reduced to 69% of control levels by meso-DMSA and to 45% of control levels by rac-DMSA. A similar pattern was found for renal lead levels. Brain lead concentrations were significantly lower in treated groups than in control groups, but no differences were found between rac- and meso-DMSA. Rac-DMSA is more soluble than meso-DMSA in acetonitrile, ethyl acetate, and ethyl ether. The partition coefficient of rac-DMSA in the n-octanol/water system was found to be about 2.8. These results indicate that rac-DMSA deserves further attention as a possible substitute for meso-DMSA.
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Affiliation(s)
- M M Jones
- Department of Chemistry, Vanderbilt University, Nashville, TN 37235, USA
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Lever SZ, Stricklin DL. Preparation of radioactive lead complexes utilizing Chelex methodology. Nucl Med Biol 1996; 23:1013-7. [PMID: 9004291 DOI: 10.1016/s0969-8051(96)00156-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The use of Chelex resin for the synthesis of radioactive lead complexes has been explored. The process involved immobilization of 203Pb on the resin and subsequent elution of complexed lead by chelating agents. 203Pb complexes derived from meso- and racemic dimercaptosuccinic acid (meso-DMSA, rac-DMSA) were prepared and assessed for stability in vitro.
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Affiliation(s)
- S Z Lever
- Department of Environmental Health Sciences, Johns Hopkins University School of Hygiene and Public Health, Baltimore, MD 21205-2179, USA
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Coordination chemistry of bis-thiohydroxamic acids: synthesis and characterization of their lead(II) complexes and stability constant determination. Inorganica Chim Acta 1996. [DOI: 10.1016/0020-1693(95)04894-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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