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Li P, Gao Y, Ma X, Zhou S, Guo Y, Xu J, Wang X, Van Halm-Lutterodt N, Yuan L. Study on the Association of Dietary Fatty Acid Intake and Serum Lipid Profiles With Cognition in Aged Subjects With Type 2 Diabetes Mellitus. Front Aging Neurosci 2022; 14:846132. [PMID: 35431907 PMCID: PMC9009143 DOI: 10.3389/fnagi.2022.846132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/28/2022] [Indexed: 11/27/2022] Open
Abstract
Background The correlation between dietary fatty acid (FA) intake and serum lipid profile levels with cognition in the aged population has been reported by previous studies. However, the association of dietary FA intake and serum lipid profile levels with cognition in subjects with type 2 diabetes mellitus (T2DM) is seldom reported. Objective A cross-sectional study was conducted to explore the correlation between dietary FA intake and serum lipid profiles with cognition in the aged Chinese population with T2DM. Methods A total of 1,526 aged Chinese subjects were recruited from communities. Fasting blood samples were collected for parameter measurement. The food frequency questionnaire (FFQ) method was applied for a dietary survey. Cognition was assessed using the Montreal Cognitive Assessment (MoCA) test. Dietary FA intake and serum lipid levels were compared between subjects with T2DM and control subjects. A logistic regression analysis was carried out for analyzing the association of FA intake and serum lipid levels with the risk of mild cognitive impairment (MCI) in subjects with T2DM and control subjects. Results There was a significant difference in the serum lipid level between the T2DM group and the control group. Results of the logistic regression analysis demonstrated the potential associations of serum total cholesterol (TC), low-density lipoprotein cholesterol (LDL-c), and dietary n-3 polyunsaturated fatty acids (PUFAs) intake with the risk of MCI in subjects with T2DM, but the associations were not observed in control subjects. Conclusion The T2DM phenotype might affect the relationship between dietary FA intake, circulating lipids, and cognitive performance. Large prospective cohort studies are needed to uncover the underlying mechanism of how dietary FA intake and serum lipid levels affect cognition in aged subjects with T2DM.
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Affiliation(s)
- Pengfei Li
- School of Public Health, Capital Medical University, Beijing, China
| | - Yanyan Gao
- School of Public Health, Capital Medical University, Beijing, China
| | - Xiaojun Ma
- School of Public Health, Capital Medical University, Beijing, China
| | - Shaobo Zhou
- School of Life Sciences, Institute of Biomedical and Environmental Science and Technology, University of Bedfordshire, Luton, United Kingdom
| | - Yujie Guo
- School of Public Health, Capital Medical University, Beijing, China
| | - Jingjing Xu
- School of Public Health, Capital Medical University, Beijing, China
| | - Xixiang Wang
- School of Public Health, Capital Medical University, Beijing, China
| | | | - Linhong Yuan
- School of Public Health, Capital Medical University, Beijing, China
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A two‐center study for the quality control of [18F]FDG using FASTlab phosphate cassettes. Ann Nucl Med 2016; 30:563-71. [DOI: 10.1007/s12149-016-1097-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Accepted: 06/03/2016] [Indexed: 10/21/2022]
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3
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Djouina M, Esquerre N, Desreumaux P, Vignal C, Body-Malapel M. Toxicological consequences of experimental exposure to aluminum in human intestinal epithelial cells. Food Chem Toxicol 2016; 91:108-16. [DOI: 10.1016/j.fct.2016.03.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 02/22/2016] [Accepted: 03/11/2016] [Indexed: 12/30/2022]
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4
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Jakovljevic I, Petrovic D, Joksovic L, Lazarevic I, Jelikic-Stankov M, Djurdjevic P. Complex formation equilibria between aluminum(III), gadolinium(III) and yttrium(III) ions and some fluoroquinolone ligands. Potentiometric and spectroscopic study. J COORD CHEM 2015. [DOI: 10.1080/00958972.2015.1089535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ivan Jakovljevic
- Faculty of Science, University of Kragujevac, Kragujevac, Serbia
| | - Djordje Petrovic
- Laboratory for Radioisotopes, Institute of Nuclear Science “VINČA”, Belgrade, Serbia
| | | | - Ivan Lazarevic
- CBRN Training Center of the Serbian Armed Forces, Kruševac, Serbia
| | - Milena Jelikic-Stankov
- Faculty of Pharmacy, Analytical Chemistry Department, University of Belgrade, Belgrade, Serbia
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Djurdjevic P, Jakovljevic I, Joksovic L, Ivanovic N, Jelikic-Stankov M. The effect of some fluoroquinolone family members on biospeciation of copper(II), nickel(II) and zinc(II) ions in human plasma. Molecules 2014; 19:12194-223. [PMID: 25123186 PMCID: PMC6271013 DOI: 10.3390/molecules190812194] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 07/25/2014] [Accepted: 07/30/2014] [Indexed: 11/16/2022] Open
Abstract
The speciation of Cu2+, Ni2+ and Zn2+ ions in the presence of the fluoroquinolones (FQs) moxifloxacin, ofloxacin, levofloxacin and ciprofloxacin, in human blood plasma was studied under physiological conditions by computer simulation. The speciation was calculated using an updated model of human blood plasma including over 6,000 species with the aid of the program Hyss2009. The identity and stability of metal-FQ complexes were determined by potentiometric (310 K, 0.15 mol/L NaCl), spectrophotometric, spectrofluorimetric, ESI-MS and 1H-NMR measurements. In the case of Cu2+ ion the concentration of main low molecular weight (LMW) plasma complex (Cu(Cis)His) is very slightly influenced by all examined FQs. FQs show much higher influence on main plasma Ni2+ and Zn2+ complexes: (Ni(His)2 and Zn(Cys)Cit, respectively. Levofloxacin exhibits the highest influence on the fraction of the main nickel complex, Ni(His)2, even at a concentration level of 3×10⁻⁵ mol/L. The same effect is seen on the main zinc complex, Zn(Cys)Cit. Calculated plasma mobilizing indexes indicate that ciprofloxacin possesses the highest mobilizing power from plasma proteins, toward copper ion, while levofloxacin is the most influential on nickel and zinc ions. The results obtained indicate that the drugs studied are safe in relation to mobilization of essential metal ions under physiological conditions. The observed effects were explained in terms of competitive equilibrium reactions between the FQs and the main LMW complexes of the metal ions.
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Affiliation(s)
- Predrag Djurdjevic
- Faculty of Science, Chemistry Department, University of Kragujevac, P.O.BOX 60, 34000 Kragujevac, Serbia.
| | - Ivan Jakovljevic
- Faculty of Science, Chemistry Department, University of Kragujevac, P.O.BOX 60, 34000 Kragujevac, Serbia.
| | - Ljubinka Joksovic
- Faculty of Science, Chemistry Department, University of Kragujevac, P.O.BOX 60, 34000 Kragujevac, Serbia.
| | - Nevena Ivanovic
- Faculty of Science, Chemistry Department, University of Kragujevac, P.O.BOX 60, 34000 Kragujevac, Serbia.
| | - Milena Jelikic-Stankov
- Faculty of Pharmacy, Analytical Chemistry Department, University of Belgrade, 11221 Belgrade, Serbia.
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Ogawa T, Miyajima M, Wakiyama N, Terada K. Effects of Phosphate Buffer in Parenteral Drugs on Particle Formation from Glass Vials. Chem Pharm Bull (Tokyo) 2013; 61:539-45. [DOI: 10.1248/cpb.c12-01025] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Toru Ogawa
- Formulation Technology Research Laboratories, Daiichi Sankyo Co., Ltd
| | - Makoto Miyajima
- Formulation Technology Research Laboratories, Daiichi Sankyo Co., Ltd
| | - Naoki Wakiyama
- Formulation Technology Research Laboratories, Daiichi Sankyo Co., Ltd
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Nurchi VM, Crisponi G, Lachowicz JI, Murgia S, Pivetta T, Remelli M, Rescigno A, Niclós-Gutíerrez J, González-Pérez JM, Domínguez-Martín A, Castiñeiras A, Szewczuk Z. Iron(III) and aluminum(III) complexes with hydroxypyrone ligands aimed to design kojic acid derivatives with new perspectives. J Inorg Biochem 2010; 104:560-9. [PMID: 20185179 DOI: 10.1016/j.jinorgbio.2010.01.007] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Revised: 01/05/2010] [Accepted: 01/11/2010] [Indexed: 11/16/2022]
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8
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Milacic R, Murko S, Scancar J. Problems and progresses in speciation of Al in human serum: an overview. J Inorg Biochem 2009; 103:1504-13. [PMID: 19740542 DOI: 10.1016/j.jinorgbio.2009.07.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2009] [Revised: 06/29/2009] [Accepted: 07/01/2009] [Indexed: 11/26/2022]
Abstract
Aluminium (Al) is associated with many clinical disorders in renal patients. Al accumulation in brain has also been related to the neurodegenerative processes in Alzheimer's disease. In order to better understand Al transport in the human body, it is necessary to identify and quantify chemical species in which Al is present in body fluids and tissues. Among a variety of biological samples, Al speciation was the most frequently investigated in human serum. Improvements were made in the development of analytical techniques for the determination of the amount and composition of high molecular mass Al (HMM-Al) and low molecular mass Al (LMM-Al) species in human serum. However, due to the complex chemistry of Al in serum, its low total concentration and the high risk of contamination, speciation of Al in biological samples is still a difficult task for analytical chemists. In this work, problems related to speciation of Al in human serum are critically discussed. An overview of the progress that was made by the use of different analytical procedures, in order to propose analytical protocols for reliable speciation of Al in serum at low ng mL(-1) concentration range, is presented.
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Affiliation(s)
- Radmila Milacic
- Department of Environmental Sciences, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
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9
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Duffield JR, Edwards K, Evans DA, Morrish DM, Vobe RA, Williams DR. Low Molecular Mass Aluminum Complex Speciation in Biofluids. J COORD CHEM 2009. [DOI: 10.1080/00958979109408258] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- John R. Duffield
- a School of Chemistry and Applied Chemistry , University of Wales College of Cardiff , P.O. Box 912, Cardiff , CF1 3TB , UK
- b Department of Chemistry , Manchester Polytechnic , Manchester , MI , 5GD , UK
| | - Keith Edwards
- a School of Chemistry and Applied Chemistry , University of Wales College of Cardiff , P.O. Box 912, Cardiff , CF1 3TB , UK
| | - D. Andrew Evans
- a School of Chemistry and Applied Chemistry , University of Wales College of Cardiff , P.O. Box 912, Cardiff , CF1 3TB , UK
| | - Deborah M. Morrish
- a School of Chemistry and Applied Chemistry , University of Wales College of Cardiff , P.O. Box 912, Cardiff , CF1 3TB , UK
| | - R. Antony Vobe
- a School of Chemistry and Applied Chemistry , University of Wales College of Cardiff , P.O. Box 912, Cardiff , CF1 3TB , UK
| | - David R. Williams
- a School of Chemistry and Applied Chemistry , University of Wales College of Cardiff , P.O. Box 912, Cardiff , CF1 3TB , UK
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10
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Nurchi VM, Pivetta T, Lachowicz JI, Crisponi G. Effect of substituents on complex stability aimed at designing new iron(III) and aluminum(III) chelators. J Inorg Biochem 2008; 103:227-36. [PMID: 19036454 DOI: 10.1016/j.jinorgbio.2008.10.011] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2008] [Revised: 10/09/2008] [Accepted: 10/10/2008] [Indexed: 11/26/2022]
Abstract
The solution equilibria of iron(III) and aluminum(III) with two classes of hard ligands (catechol, salicylic acid and their nitro-derivatives) have been reliably studied by potentiometric, spectrophotometric and NMR spectroscopy. The effect of the nitro substituent on the binding properties of catechol and salicylic acid has been examined thoroughly. The inductive and resonance properties of the substituent that, as expected, lower the basicity of the phenolic and carboxylic groups, lead to a general decrease in both protonation and complex formation constants. This decrease causes an increase in pM of between 0.2 and 1.1pM units for the nitro-substituted salicylates and of about 4 units for 4-nitrocatechol, with a significantly higher chelating efficacy. The influence of the substituent on catechol and salicylic acid is discussed in detail on the basis of conditional constants at pH 7.4.
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Affiliation(s)
- Valeria Marina Nurchi
- Dipartimento di Scienze Chimiche, Centro Interdipartimentale per lo Studio dei Metalli in Medicina, Cittadella Universitaria, 09042 Monserrato-Cagliari, Italy
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11
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Effects of reaction mixture and other components on the determination of the equilibrium and rate constants of the hydration reactions of anthocyanins. Food Chem 2008. [DOI: 10.1016/j.foodchem.2007.07.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Greger JL. Dietary and other sources of aluminium intake. CIBA FOUNDATION SYMPOSIUM 2007; 169:26-35; discussion 35-49. [PMID: 1490425 DOI: 10.1002/9780470514306.ch3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Aluminium in the food supply comes from natural sources including water, food additives, and contamination by aluminium utensils and containers. Most unprocessed foods, except for certain herbs and tea leaves, contain low (< 5 micrograms Al/g) levels of aluminium. Thus most adults consume 1-10 mg aluminium daily from natural sources. Cooking in aluminium containers often results in statistically significant, but not practically important, increases in the aluminium content of foods. Intake of aluminium from food additives varies greatly (0 to 95 mg Al daily) among residents in North America, with the median intake for adults being about 24 mg daily. Generally, the intake of aluminium from foods is less than 1% of that consumed by individuals using aluminium-containing pharmaceuticals. Currently the real scientific question is not the amount of aluminium in foods but the availability of the aluminium in foods and the sensitivity of some population groups to aluminium. Several dietary factors, including citrate, may affect the absorption of aluminium. Aluminium contamination of soy-based formulae when fed to premature infants with impaired kidney function and aluminium contamination of components of parenteral solutions (i.e. albumin, calcium and phosphorus salts) are of concern.
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Affiliation(s)
- J L Greger
- Department of Nutritional Sciences, University of Wisconsin, Madison 53706
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13
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Kiss T, Odani A. Demonstration of the Importance of Metal Ion Speciation in Bioactive Systems. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2007. [DOI: 10.1246/bcsj.80.1691] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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14
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Caruso JA, Wuilloud RG, Altamirano JC, Harris WR. Modeling and separation-detection methods to evaluate the speciation of metals for toxicity assessment. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2006; 9:41-61. [PMID: 16393869 DOI: 10.1080/15287390500196172] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
There is an increasing appreciation for the importance of speciation in the assessment of metal toxicity. In this review, two approaches to speciation are discussed, with an emphasis on their application to biological samples. One approach is the direct separation and detection of metal species of toxicological interest. Various "hyphenated" techniques, consisting of a chromatographic system coupled to inductively coupled plasma-mass spectrometry (ICP-MS), are discussed. The chromatographic strategies employed for separation emphasize liquid chromatography (LC), but the increasing use of gas chromatography (GC) and capillary electrophoresis (CE) in speciation analysis is discussed. The second approach to speciation is the use of computer models to calculate the speciation of a metal ion within a complex mixture of ligands. This approach is applicable to systems in which the metal cation exchanges ligands rapidly, so that the sample represents an equilibrium mixture of metal complexes. These computational models are based on the equilibrium constants for the metal complexes and a series of mass balance equations and give the distribution of metal complexes in the original sample. This approach is illustrated using the speciation of Al(III) in serum as an example.
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Silwood CJL, Grootveld M. Evaluation of the speciation status of aluminium(III) ions in isolated osteoarthritic knee-joint synovial fluid. Biochim Biophys Acta Gen Subj 2005; 1725:327-39. [PMID: 15978730 DOI: 10.1016/j.bbagen.2005.05.009] [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] [Received: 03/04/2005] [Revised: 05/05/2005] [Accepted: 05/05/2005] [Indexed: 11/26/2022]
Abstract
High field 1H NMR spectroscopy demonstrated that the equilibration of added Al(III) ions in osteoarthritic (OA) knee-joint synovial fluid (SF) resulted in its complexation by citrate and, to a much lesser extent, tyrosine and histidine. The ability of these ligands, together with inorganic phosphate, to compete for the available Al(III) in terms of (1) thermodynamic equilibrium constants for the formation of their complexes and (2) their SF concentrations was probed through the use of computer speciation calculations, which considered low-molecular-mass binary and ternary Al(III) species, the predominant Al(III) plasma transport protein transferrin, and also relevant hydrolysis and precipitation processes. It was found that, at relatively low added Al(III) concentrations, citrate species were more favoured, whilst phosphate species became dominant at higher levels. The significance of these findings with regard to the in vivo corrosion of aluminium-containing metal alloy joint prostheses (e.g., TiAlV alloys) is discussed.
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Affiliation(s)
- Christopher J L Silwood
- Department of Applied Science, Faculty of Engineering, Science and the Built Environment, London South Bank University, London SE1 0AA, UK
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Thomas TN, Land TA, DeYoreo JJ, Casey WH. In situ atomic force microscopy investigation of the [100] face of KH2PO4 in the presence of Fe(III), Al(III), and Cr(III). LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2004; 20:7643-7652. [PMID: 15323514 DOI: 10.1021/la049546f] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Here we report the effects of dissolved metal complexes of Fe(III), Al(III), and Cr(III) on the step velocities of the [100] face of KH2PO4 (KDP) as observed with atomic force microscopy. The dependence of step velocity on supersaturation (sigma) exhibits a dead zone that scales with adsorbate concentration. The observed dependence varies with the metal complex. From these data, we derive values for the characteristic adsorption time (tau) for the Al(III) and Cr(III) step-pinning adsorbates as being on the order of several hundred microseconds as compared to 10-100 s for the corresponding Fe(III) step-pinning adsorbates. The values of tau are strikingly different than rates of ligand exchange but are associated with the adsorbate-induced morphology of the surface, including elementary steps that bunch into macrosteps and supersteps. The stoichiometry of the adsorbate species is assumed to be M(HxPO4)x, where M = Fe(III), Al(III), or Cr(III). KDP crystals grown in the presence of the dissolved metals were analyzed using laser ablation inductively coupled plasma mass spectroscopy. The data revealed sectoral zoning on the [100] face, with the concentrations of the incorporated adsorbates in the sector with slower moving elementary steps being 1.7-2.0 times greater than those measured on the sector with fast moving elementary steps.
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Affiliation(s)
- Tiffany N Thomas
- Department of Land, Air, and Water Resources, Chemistry Graduate Group, University of California at Davis, Davis, California 95616, USA.
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Cael V, Champmartin D, Rubini P. Interactions of aluminium(III) with glycerolphosphates and glycerophosphorylcholine. J Inorg Biochem 2003; 97:97-103. [PMID: 14507465 DOI: 10.1016/s0162-0134(03)00155-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The complexation of aluminium(III) with glycerol-1-phosphate (G1P) and glycerol-2-phosphate (G2P) in aqueous solutions has been studied as a function of pH, by pH-potentiometry, 31P NMR spectroscopy and ESI mass spectrometry. Various mononuclear complexes (MLH(2)(3+), MLH(2+), ML(+), ML(2)H, ML(2)(-)) and polynuclear species (M(3)L(3)H(-1)(2+), M(3)L(2)H(-n)((n-5)-) with n=5, 6, 7, M(2)L(2)H(-1)(+) ) are formed in the system where the full protonated ligands are noted LH(2). NMR experiments clearly show that G1P and G2P already interact with Al(III) at pH 1. The potentiometric results are confirmed by ESI measurements and 31P NMR studies. No metal ion-induced deprotonation and coordination of the alcoholic-OH functions seem to occur during the complexation. The situation is very different for the glycerophosphorylcholine ligand (GPC identical with LH). Only the complex ML(3+) is formed in aqueous solution with a relatively low formation constant (K=5 at 37 degrees C). This species is clearly identified in 31P and 27Al NMR spectra. The complexation study as a function of the temperature allowed us to determine the thermodynamic parameters of the complex formation. The complexation is not governed by the reaction enthalpy that is found to be positive but by the entropy that is largely positive.
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Affiliation(s)
- V Cael
- Laboratoire de Chimie Physique Organique et Colloi;dale, Université Henri Poincaré-Nancy I, Unité Mixte CNRS-UHP (SRSMC, UMR 7565) BP 239, 54506 Vandoeuvre-Lès-Nancy Cédex, France
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Harris WR, Wang Z, Hamada YZ. Competition between transferrin and the serum ligands citrate and phosphate for the binding of aluminum. Inorg Chem 2003; 42:3262-73. [PMID: 12739968 DOI: 10.1021/ic026027w] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A key issue regarding the speciation of Al(3+) in serum is how well the ligands citric acid and phosphate can compete with the iron transport protein serum transferrin for the aluminum. Previous studies have attempted to measure binding constants for each ligand separately, but experimental problems make it very difficult to obtain stability constants with the accuracy required to make a meaningful comparison between these ligands. In this study, effective binding constants for Al-citrate and Al-phosphate at pH 7.4 have been determined using difference UV spectroscopy to monitor the direct competition between these ligands and transferrin. The analysis of this competition equilibrium also includes the binding of citrate and phosphate as anions to apotransferrin. The effective binding constants are 10(11.59) for the 1:1 Al-citrate complexes and 10(14.90) for the 1:2 Al-citrate complexes. The effective binding constant for the 1:2 Al-phosphate complex is 10(12.02). No 1:1 Al-phosphate complex was detected. Speciation calculations based on these effective binding constants indicate that, at serum concentrations of citrate and phosphate, citrate will be the primary low-molecular-mass ligand for aluminum. Formal stability constants for the Al-citrate system have also been determined by potentiometric methods. This equilibrium system is quite complex, and information from both electrospray mass spectrometry and difference UV experiments has been used to select the best model for fitting the potentiometric data. The mass spectra contain peaks that have been assigned to complexes having aluminum:citrate stoichiometries of 1:1, 1:2, 2:2, 2:3, and 3:3. The difference UV results were used to determine the stability constant for Al(H(-1)cta)-, which was then used in the least-squares fitting of the potentiometric data to determine stability constants for Al(Hcta)+, Al(cta), Al(cta)2(3-), Al(H(-1)cta)(cta)(4-), Al2(H(-1)cta)2(2-), and Al3(H(-1)cta)3(OH)(4-).
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Affiliation(s)
- Wesley R Harris
- Department of Chemistry and Biochemistry, University of Missouri-St. Louis, St. Louis, MO 63121, USA
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Daydé S, Champmartin D, Rubini P, Berthon G. Aluminium speciation studies in biological fluids. Part 8. A quantitative investigation of Al(III)–amino acid complex equilibria and assessment of their potential implications for aluminium metabolism and toxicity. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(02)01046-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Aluminum: Interaction with Nucleotides and Nucleotidases and Analytical Aspects of Its Determination. STRUCTURE AND BONDING 2002. [DOI: 10.1007/3-540-45425-x_4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Sanz-Medel A, Soldado Cabezuelo AB, Milačič R, Bantan Polak T. The chemical speciation of aluminium in human serum. Coord Chem Rev 2002. [DOI: 10.1016/s0010-8545(02)00085-1] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Berthon G. Aluminium speciation in relation to aluminium bioavailability, metabolism and toxicity. Coord Chem Rev 2002. [DOI: 10.1016/s0010-8545(02)00021-8] [Citation(s) in RCA: 277] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Harris WR, Messori L. A comparative study of aluminum(III), gallium(III), indium(III), and thallium(III) binding to human serum transferrin. Coord Chem Rev 2002. [DOI: 10.1016/s0010-8545(02)00037-1] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Rubini P, Lakatos A, Champmartin D, Kiss T. Speciation and structural aspects of interactions of Al(III) with small biomolecules. Coord Chem Rev 2002. [DOI: 10.1016/s0010-8545(01)00467-2] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Lakatos A, Evanics F, Dombi G, Bertani R, Kiss T. Speciation of AlIII in Blood Serum − The AlIII−Citrate−Phosphate Ternary System. Eur J Inorg Chem 2001. [DOI: 10.1002/1099-0682(200112)2001:12<3079::aid-ejic3079>3.0.co;2-v] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zhang F, Yang L, Bi S, Liu J, Liu F, Wang X, Yang X, Gan N, Yu T, Hu J, Li H, Yang T. Neurotransmitter dopamine applied in electrochemical determination of aluminum in drinking waters and biological samples. J Inorg Biochem 2001; 87:105-13. [PMID: 11709219 DOI: 10.1016/s0162-0134(01)00320-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
It was demonstrated that the decrease of the differential pulse voltammetric (DPV) anodic peak current of dopamine (3,4-dihydroxyphenylethylamine, DA) was linear with the increase of aluminum (Al) concentration. Under optimum experimental conditions (pH 4.6, 1.2 x 10(-3) M DA, and 0.04 M NaAc-HAc buffer solution), the linear range is 4.0 x 10(-7)-8.0 x 10(-5) M, the detection limit is 1.4 x 10(-7) M, and the relative standard deviation for 4 x 10(-5) M Al(III) is 3.5% (n=8). Many foreign species, especially some low-molecule-weight biological molecules, were chosen for interference testing. The proposed method was applied to the determination of Al in biological samples such as synthetic renal dialysate, Ringer's solution, human blood, cerebrospinal fluid of a patient, and urine of a diabetic patient. The corresponding recoveries were generally between 95 and 105%. The basic principle of the method was determined by examining Al complexed with DA. This results in the blockage of the electroactive sites on DA, followed eventually by the reduction of the electrochemical response of DA. This result was verified by examining the behavior of DA, both in the presence and absence of Al, using electrochemical, UV-Vis, Raman, and (13)C NMR spectroscopic methods.
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Affiliation(s)
- F Zhang
- State Key Laboratory of Coordination Chemistry of China, Department of Chemistry, Nanjing University, Nanjing 210093, PR China
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Polak TB, Milacic R, Mitrovic B, Benedik M. Speciation of low molecular weight Al complexes in serum of CAPD patients. J Pharm Biomed Anal 2001; 26:189-201. [PMID: 11470196 DOI: 10.1016/s0731-7085(01)00397-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Speciation of LMW--Al complexes was performed in human serum of six continuous ambulatory peritoneal dialysis (CAPD) patients in order to investigate the individual variability in the percentage and the composition of LMW--Al species. The total concentration of Al in serum ranged from 10 to 120 ng ml(-1). The samples with high total concentration of Al were analysed directly, while those of low total Al concentration were spiked with Al(3+). Spiked and non-spiked samples (100--120 ng ml(-1) of total Al) were microultrafiltered through a membrane filter (cut-off 30,000 Da) to separate Al-transferrin from LMW-Al complexes. On an anion-exchange fast protein liquid chromatography (FPLC) column, 0.2 ml of filtrate was injected. An aqueous -- 4 mol l(-1) NH(4)NO(3) linear gradient elution was applied for 10 min to separate LMW--Al complexes. Fractions of 0.2 ml collected throughout the chromatographic run were diluted 1:1 with water and Al determined 'off line' by electrothermal atomic absorption spectrometry (ETAAS). The characterisation of LMW-Al species eluted under the chromatographic peaks was performed also by electrospray tandem mass spectrometric (ES-MS-MS) analysis. It was found experimentally that the percentage of LMW--Al species in spiked and non-spiked serum ranged from 25 to 50% (in one non-spiked sample 100%). The following LMW--Al species were separated and identified during the chromatographic run: Al-phosphate and a mixture of Al-citrate and ternary Al-citrate--phosphate complexes. It was found experimentally that the distribution of these species varied among particular patients. Similar distribution of LMW--Al species was found in spiked serum of healthy volunteers.
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Affiliation(s)
- T B Polak
- Department of Environmental Sciences, Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia
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Zhang F, Bi S, Li H, Chen Y, Dai L. Application ofL-Dopa as an Electroactive Ligand for Indirect Determination of Aluminum in Biological Samples by Differential Pulse Voltammetry. ELECTROANAL 2001. [DOI: 10.1002/1521-4109(200108)13:12<1054::aid-elan1054>3.0.co;2-f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Djurdjevic P, Jelikic-Stankov M, Lazarevic I. The Effect of Surfactants on Equilibria in Aluminium(III) Ion + Ofloxacin Solution and Adsorption of Ofloxacin on Aluminium-Oxide. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2001. [DOI: 10.1246/bcsj.74.1261] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kiss T, Kiss E, Micera G, Sanna D. The formation of ternary complexes between VO(maltolate)2 and small bioligands. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(98)00229-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Abstract
OBJECTIVES In dialysis patients both aluminum (AI) and silicon (Si) may accumulate. Whereas the toxic effects of AI within this population are clearly established, little is known on the role of Si in the development/protection of particular dialysis-related diseases. A clear insight in the protein binding and speciation of trace elements is important to better understand the mechanisms underlying their toxicity/essentiality. Research in this field however is complex and often prone to analytical difficulties and inaccuracies. DESIGN AND METHODS In the first part of this review techniques used for speciation studies of AI and Si in biological fluids are discussed. Notwithstanding recent technical advances (a) extraneous metal contamination, (b) unrecognized aspecific binding of metals to proteins, and (c) unwanted interactions with separation equipment such as chromatography columns and ultrafiltration membranes remain important pitfalls and often lead to erroneous conclusions. The factors that determine the speciation of AI and Si and their ultimate tissue distribution and toxicity are dealt with in the second part. Here, experimental data obtained with various speciation techniques are linked to in vivo data on the tissue distribution, localization/toxicity of both elements. CONCLUSIONS A model in which the AI tissue distribution/toxicity is mediated by either its citrate or transferrin bound form is proposed.
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Abstract
Aluminum (Al) is a nonessential, toxic metal to which humans are frequently exposed. Oral exposure to aluminum occurs through ingestion of aluminum-containing pharmaceuticals and to a lesser extent foods and water. Parenteral exposure to aluminum can occur via contaminated total parenteral nutrition (TPN), intravenous (i.v.) solutions, or contaminated dialysates. Inhalation exposure may be important in some occupational settings. The gut is the most effective organ in preventing tissue aluminum accumulation after oral exposure. Typically gastrointestinal absorption of aluminum from diets is < 1%. Although the mechanisms of aluminum absorption have not been elucidated, both passive and active transcellular processes and paracellular transport are believed to occur. Aluminum and calcium may share some absorptive pathways. Aluminum absorption is also affected by the speciation of aluminum and a variety of other substances, including citrate, in the gut milieu. Not all absorbed or parenterally delivered aluminum is excreted in urine. Low glomerular filtration of aluminum reflects that most aluminum in plasma is nonfiltrable because of complexation to proteins, predominantly transferrin. The importance of biliary secretion of aluminum is debatable and the mechanism(s) is poorly understood and appears to be saturable by fairly low oral doses of aluminum.
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Affiliation(s)
- J L Greger
- Department of Nutritional Sciences, University of Wisconsin, Madison 53706, USA
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34
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Radiochemistry of aluminium. J Radioanal Nucl Chem 1996. [DOI: 10.1007/bf02039714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Atkári K, Kiss T, Bertani R, Martin RB. Interactions of Aluminum(III) with Phosphates. Inorg Chem 1996; 35:7089-7094. [PMID: 11666891 DOI: 10.1021/ic960329e] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In order to obtain information about aluminum(III)-phosphate interactions, potentiometric measurements were carried out to characterize the complex forming properties of Al(III) with organic phosphates, phosphonates, and nucleoside-5'-monophosphates. The aluminum(III)-orthophosphate system is difficult to study due to AlPO(4) precipitation. To overcome this problem, the stability constant logarithms of the 1:1 Al(III) complexes of ligands with the same donor groups (log K(1:1)) were plotted against the basicities of the ligands (log K(PO)3(H)). The resulting linear free energy relation (LFER) indicates that organic phosphates, phosphonates, and uridine-, thymidine-, and guanosine 5'-monophosphates similarly bind Al(III). Adenosine and cytidine 5'-monophosphate fall above the LFER owing to the presence of a second microform with the nucleic base protonated and a hydroxide bound to the Al(III). From the LFER the log stability constant for Al(III) binding to HPO(4)(2-) is estimated as 6.13 +/- 0.05. From the weakness of any soluble orthophosphate complexes of Al(III) we confirm the importance of citrate as the main small molecule Al(3+) binder in the blood serum. The study includes investigation of Al(III) binding to di- and triphosphates, which bind metal ion differently than monophosphates. Structures of the complexes were supported by (31)P NMR measurements.
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Affiliation(s)
- Károly Atkári
- Department of Inorganic and Analytical Chemistry, Kossuth University, H-4010 Debrecen, Hungary, Centro di Studio Sulla Chimica e Tecnologia dei Compositi Metallorganici degli Elementi di Transizione, CNR, I-35131 Padova, Italy, and Department of Chemistry, University of Virginia, Charlottesville, Virginia 22903
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Interaction of aluminium (III) with phosphate-binding sites: biological aspects and implications. Coord Chem Rev 1996. [DOI: 10.1016/s0010-8545(96)90036-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Seruga M, Hasenay D. Corrosion of aluminium in soft drinks. ZEITSCHRIFT FUR LEBENSMITTEL-UNTERSUCHUNG UND -FORSCHUNG 1996; 202:308-12. [PMID: 8638433 DOI: 10.1007/bf01206102] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The corrosion of aluminium (Al) in several brands of soft drinks (cola- and citrate-based drinks) has been studied, using an electrochemical method, namely potentiodynamic polarization. The results show that the corrosion of Al in soft drinks is a very slow, time-dependent and complex process, strongly influenced by the passivation, complexation and adsorption processes. The corrosion of Al in these drinks occurs principally due to the presence of acids: citric acid in citrate-based drinks and orthophosphoric acid in cola-based drinks. The corrosion rate of Al rose with an increase in the acidity of soft drinks, i.e. with increase of the content of total acids. The corrosion rates are much higher in the cola-based drinks than those in citrate-based drinks, due to the facts that: (1) orthophosphoric acid is more corrosive to Al than is citric acid, (2) a quite different passive oxide layer (with different properties) is formed on Al, depending on whether the drink is cola or citrate based. The method of potentiodynamic polarization was shown as being very suitable for the study of corrosion of Al in soft drinks, especially if it is combined with some non-electrochemical method, e.g. graphite furnace atomic absorption spectrometry (GFAAS).
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Affiliation(s)
- M Seruga
- Faculty of Food Technology, University of Osijek, Croatia
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Kiss T. Interaction of aluminum with biomolecules — any relevance to Alzheimer's disease? Arch Gerontol Geriatr 1995; 21:99-112. [PMID: 15374229 DOI: 10.1016/0167-4943(95)00642-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/1994] [Revised: 12/05/1994] [Accepted: 03/30/1995] [Indexed: 11/17/2022]
Abstract
The possible involvement of aluminum in Alzheimer's disease (AD) is discussed focusing, on the one hand, on a critical review of the analytical results concerning the brain aluminum content of AD patients, and on the other hand, on the in vitro interactions of AI(III) with biologically relevant potential AI(III) binders occurring in intracellular and/or extracellular fluids. The biomolecules considered are such as amino acids, organic and inorganic phosphates, nucleotides, catecholamines and transferrin. It is quite clear from the results that definition of the actual AI(III) species present in the biological systems is essentially important in any studies of the neurotoxic role of aluminum.
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Affiliation(s)
- T Kiss
- Department of Inorganic and Analytical Chemistry, Kossuth University, H-4010 Debrecen, POB. 21, Hungary
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Bittar EE, Huang YP. Concerning stimulation by injected fluoroaluminate of the sodium efflux in barnacle muscle fibers. BIOCHIMICA ET BIOPHYSICA ACTA 1993; 1152:307-13. [PMID: 8218331 DOI: 10.1016/0005-2736(93)90262-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Single barnacle muscle fibers from Balanus nubilus were used primarily to examine the validity of two ideas: first, that the injection of KF stimulates the ouabain-insensitive Na+ efflux, and that this action is potentiated by adding AlCl3 (Al) in a low concentration to the solution of KF prior to injection. And second, that the injection of a KF-AlCl3 solution into ouabain-poisoned, K(+/-)-depolarized fibers elicits a stimulatory response resembling that obtained by injecting GTP. The results of this study are as follows: injection of 0.5 M KF into unpoisoned fibers causes a sustained rise in the resting Na+ efflux. However, injection of a 0.5 M KF, 10(-3) M AlCl3 solution leads to a reduced rather than an augmented response. Whereas injection of 0.5 M KF into ouabain-poisoned fibers elicits a marked stimulatory response, the injection of 0.5 M KF, 10(-3) M AlCl3 reduces the remaining Na+ efflux. Injection of KF-AlCl3 in equimolar concentrations, e.g., 0.25 M, elicits a response that is significantly larger than that obtained by injecting 0.25 M KF. A dose-response curve indicates that a 0.2 M solution of fluoroaluminate probably represents an optimal concentration. Injection of 0.3 M KF following peak stimulation by injecting 0.3 M AlCl3 completely reverses this response to Al. In sharp contrast, injection of a 0.3 M KF, 0.3 M AlCl3 mixture following peak stimulation by injecting 0.3 M AlCl3 is ineffective. Injection of KF into ouabain-poisoned, K+ depolarized fibers does not always cause sustained stimulation of the remaining Na+ efflux.(ABSTRACT TRUNCATED AT 250 WORDS)
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Affiliation(s)
- E E Bittar
- Department of Physiology, University of Wisconsin, Madison 53706
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Abstract
Initially characterized in uremic patients undergoing hemodialysis, toxic effects due to high aluminum (Al) body loads were subsequently observed in a number of conditions, in particular following ingestion of Al-containing antacids. Among compounds of this class, aluminum phosphate (AlPO4) was recognized as safer than aluminum hydroxide (Al(OH)3), which was thought to result from its lower solubility and thus absorption in the gastrointestinal (gi) tract. However, while virtually insoluble at acid pH, AlPO4 is more soluble than Al(OH)3 under alkaline conditions, leading to the hypothesis that Al is predominantly absorbed in the acidic region of the gi tract. Our present results suggest otherwise. Al bioavailability depends on the solubility of the salt ingested as well as on the physicochemical properties of the Al soluble complexes formed in the gi fluid. Anions of dietary acids may indeed dissolve significant fractions of Al salts and form absorbable Al complexes. It is in these terms that the well documented increase of Al gi absorption by citrate has been interpreted from computer-based speciation studies. Using similar calculations, we now demonstrate that a series of dietary acids (namely malic, oxalic, tartaric, succinic, aspartic and glutamic acids) can also dissolve significant amounts of Al(OH)3 and form Al neutral complexes available to the gi membrane. In contrast, both effects are far less apparent when Al is administered as AlPO4. We conclude from this observation that the lower toxicity of AlPO4 vs Al(OH)3 stems from its better capacity to resist dissolution and neutral complex formation in the presence of acids commonly present in food.
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Affiliation(s)
- G Berthon
- Inserm U305, Equipe Bioréactifs: Spéciation et Biodisponibilité, Université Paul Sabatier, Toulouse, France
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