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Geiker NRW, Bertram HC, Mejborn H, Dragsted LO, Kristensen L, Carrascal JR, Bügel S, Astrup A. Meat and Human Health-Current Knowledge and Research Gaps. Foods 2021; 10:1556. [PMID: 34359429 PMCID: PMC8305097 DOI: 10.3390/foods10071556] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/24/2021] [Accepted: 06/29/2021] [Indexed: 12/14/2022] Open
Abstract
Meat is highly nutritious and contributes with several essential nutrients which are difficult to obtain in the right amounts from other food sources. Industrially processed meat contains preservatives including salts, possibly exerting negative effects on health. During maturation, some processed meat products develop a specific microbiota, forming probiotic metabolites with physiological and biological effects yet unidentified, while the concentration of nutrients also increases. Meat is a source of saturated fatty acids, and current WHO nutrition recommendations advise limiting saturated fat to less than ten percent of total energy consumption. Recent meta-analyses of both observational and randomized controlled trials do not support any effect of saturated fat on cardiovascular disease or diabetes. The current evidence regarding the effect of meat consumption on health is potentially confounded, and there is a need for sufficiently powered high-quality trials assessing the health effects of meat consumption. Future studies should include biomarkers of meat intake, identify metabolic pathways and include detailed study of fermented and other processed meats and their potential of increasing nutrient availability and metabolic effects of compounds.
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Affiliation(s)
- Nina Rica Wium Geiker
- Department of Nutrition, Exercise and Sports, University of Copenhagen, DK-2200 Copenhagen N, Denmark; (L.O.D.); (S.B.); (A.A.)
| | | | - Heddie Mejborn
- National Food Institute, Division of Food Technology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark;
| | - Lars O. Dragsted
- Department of Nutrition, Exercise and Sports, University of Copenhagen, DK-2200 Copenhagen N, Denmark; (L.O.D.); (S.B.); (A.A.)
| | - Lars Kristensen
- Danish Meat Research Institute—DMRI Technological Institute, DK-2630 Taastrup, Denmark;
| | - Jorge R. Carrascal
- Department of Food Science, University of Copenhagen, DK-1958 Frederiksberg C, Denmark;
- IPROCAR, University of Extremadura, E-10004 Caceres, Spain
| | - Susanne Bügel
- Department of Nutrition, Exercise and Sports, University of Copenhagen, DK-2200 Copenhagen N, Denmark; (L.O.D.); (S.B.); (A.A.)
| | - Arne Astrup
- Department of Nutrition, Exercise and Sports, University of Copenhagen, DK-2200 Copenhagen N, Denmark; (L.O.D.); (S.B.); (A.A.)
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2
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Zhang N, Zhou Q, Fan D, Xiao J, Zhao Y, Cheng KW, Wang M. Novel roles of hydrocolloids in foods: Inhibition of toxic maillard reaction products formation and attenuation of their harmful effects. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.03.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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3
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Badea M, Uivarosi V, Olar R. Improvement in the Pharmacological Profile of Copper Biological Active Complexes by Their Incorporation into Organic or Inorganic Matrix. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25245830. [PMID: 33321882 PMCID: PMC7763451 DOI: 10.3390/molecules25245830] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/13/2022]
Abstract
Every year, more Cu(II) complexes are proven to be biologically active species, but very few are developed as drugs or entered in clinical trials. This is due to their poor water solubility and lipophilicity, low stability as well as in vivo inactivation. The possibility to improve their pharmacological and/or oral administration profile by incorporation into inorganic or organic matrix was studied. Most of them are either physically encapsulated or conjugated to the matrix via a moiety able to coordinate Cu(II). As a result, a large variety of species were developed as delivery carriers. The organic carriers include liposomes, synthetic or natural polymers or dendrimers, while the inorganic ones are based on carbon nanotubes, hydrotalcite and silica. Some hybrid organic-inorganic materials based on alginate-carbonate, gold-PEG and magnetic mesoporous silica-Schiff base were also developed for this purpose.
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Affiliation(s)
- Mihaela Badea
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania;
| | - Valentina Uivarosi
- Department of General and Inorganic Chemistry, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, 6 Traian Vuia Str., 020956 Bucharest, Romania
- Correspondence: (V.U.); (R.O.)
| | - Rodica Olar
- Department of Inorganic Chemistry, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., 050663 Bucharest, Romania;
- Correspondence: (V.U.); (R.O.)
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Zhao Z, Hurren C, Zhang M, Zhou L, Wu J, Sun L. In Situ Synthesis of a Double-Layer Chitosan Coating on Cotton Fabric to Improve the Color Fastness of Sodium Copper Chlorophyllin. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E5365. [PMID: 33256124 PMCID: PMC7730442 DOI: 10.3390/ma13235365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/21/2020] [Accepted: 11/22/2020] [Indexed: 05/06/2023]
Abstract
Natural dye's poor affinity for cotton and poor fastness properties still hinder its applications in the textile industry. In this study, a doubled-layered chitosan coating was cured on cotton fabric to serve as bio-mordant and form a protective layer on it. Under the optimal treatment conditions, the maximum qe (adsorption amount) of the natural dye sodium copper chlorophyllin (SCC) calculated from the Langmuir isothermal model was raised from 4.5 g/kg to 19.8 g/kg. The dye uptake of the treated fabric was improved from 22.7% to 96.4% at 1% o.w.f. dye concentration. By a second chitosan layer cured on the dyed fabric via the cross-linking method, the wash fastness of the cotton fabric dyed with SCC can be improved from 3 to 5 (ISO 105 C-06). The natural source of the biopolymer material, chitosan, and its ability to biodegrade at end of life met with the initial objective of green manufacturing in applying natural dyes and natural materials to the textile industry.
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Affiliation(s)
- Zhong Zhao
- Institute for Frontier Materials, Deakin University, Geelong 3220, Australia; (Z.Z.); (C.H.); (M.Z.)
- School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Chris Hurren
- Institute for Frontier Materials, Deakin University, Geelong 3220, Australia; (Z.Z.); (C.H.); (M.Z.)
- School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Mingwen Zhang
- Institute for Frontier Materials, Deakin University, Geelong 3220, Australia; (Z.Z.); (C.H.); (M.Z.)
| | - Liming Zhou
- R&D Center, Guangdong Esquel Co. Ltd. Group, Foshan 528500, China;
| | - Jihong Wu
- School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Lu Sun
- Institute for Frontier Materials, Deakin University, Geelong 3220, Australia; (Z.Z.); (C.H.); (M.Z.)
- School of Textile Science and Engineering, Wuhan Textile University, Wuhan 430073, China
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Jesionowski T, Norman M, Żółtowska-Aksamitowska S, Petrenko I, Joseph Y, Ehrlich H. Marine Spongin: Naturally Prefabricated 3D Scaffold-Based Biomaterial. Mar Drugs 2018; 16:E88. [PMID: 29522478 PMCID: PMC5867632 DOI: 10.3390/md16030088] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 03/06/2018] [Accepted: 03/06/2018] [Indexed: 01/08/2023] Open
Abstract
The biosynthesis, chemistry, structural features and functionality of spongin as a halogenated scleroprotein of keratosan demosponges are still paradigms. This review has the principal goal of providing thorough and comprehensive coverage of spongin as a naturally prefabricated 3D biomaterial with multifaceted applications. The history of spongin's discovery and use in the form of commercial sponges, including their marine farming strategies, have been analyzed and are discussed here. Physicochemical and material properties of spongin-based scaffolds are also presented. The review also focuses on prospects and trends in applications of spongin for technology, materials science and biomedicine. Special attention is paid to applications in tissue engineering, adsorption of dyes and extreme biomimetics.
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Affiliation(s)
- Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland.
| | - Małgorzata Norman
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland.
| | - Sonia Żółtowska-Aksamitowska
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland.
| | - Iaroslav Petrenko
- Institute of Experimental Physics, TU Bergakademie Freiberg, Leipziger str. 23, 09559 Freiberg, Germany.
| | - Yvonne Joseph
- Institute of Electronics and Sensor Materials, TU Bergakademie Freiberg, Gustav-Zeuner-Str. 3, 09599 Freiberg, Germany.
| | - Hermann Ehrlich
- Institute of Experimental Physics, TU Bergakademie Freiberg, Leipziger str. 23, 09559 Freiberg, Germany.
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Gallo A, Masoero F. In vitromodels to evaluate the capacity of different sequestering agents to adsorb aflatoxins. ITALIAN JOURNAL OF ANIMAL SCIENCE 2017. [DOI: 10.4081/ijas.2010.e21] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Antonio Gallo
- Istituto di Scienze degli Alimenti e della Nutrizione, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Francesco Masoero
- Istituto di Scienze degli Alimenti e della Nutrizione, Università Cattolica del Sacro Cuore, Piacenza, Italy
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Norman M, Bartczak P, Zdarta J, Tomala W, Żurańska B, Dobrowolska A, Piasecki A, Czaczyk K, Ehrlich H, Jesionowski T. Sodium Copper Chlorophyllin Immobilization onto Hippospongia communis Marine Demosponge Skeleton and Its Antibacterial Activity. Int J Mol Sci 2016; 17:ijms17101564. [PMID: 27690001 PMCID: PMC5085623 DOI: 10.3390/ijms17101564] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 09/05/2016] [Accepted: 09/09/2016] [Indexed: 01/31/2023] Open
Abstract
In this study, Hippospongia communis marine demosponge skeleton was used as an adsorbent for sodium copper chlorophyllin (SCC). Obtained results indicate the high sorption capacity of this biomaterial with respect to SCC. Batch experiments were performed under different conditions and kinetic and isotherms properties were investigated. Acidic pH and the addition of sodium chloride increased SCC adsorption. The experimental data were well described by a pseudo-second order kinetic model. Equilibrium adsorption isotherms were determined and the experimental data were analyzed using both Langmuir and Freundlich isotherms. The effectiveness of the process was confirmed by 13C Cross Polarization Magic Angle Spinning Nuclear Magnetic Resonance (13C CP/MAS NMR), Fourier transform infrared spectroscopy (FTIR), energy-dispersive X-ray spectroscopy (EDS) and thermogravimetric analysis (TG). This novel SCC-sponge-based functional hybrid material was found to exhibit antimicrobial activity against the gram-positive bacterium Staphylococcus aureus.
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Affiliation(s)
- Małgorzata Norman
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland.
| | - Przemysław Bartczak
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland.
| | - Jakub Zdarta
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland.
| | - Wiktor Tomala
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland.
| | - Barbara Żurańska
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland.
| | - Anna Dobrowolska
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, 60627 Poznan, Poland.
| | - Adam Piasecki
- Institute of Materials Science and Engineering, Faculty of Mechanical Engineering and Management, Poznan University of Technology, Jana Pawla II 24, 60965 Poznan, Poland.
| | - Katarzyna Czaczyk
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, 60627 Poznan, Poland.
| | - Hermann Ehrlich
- Institute of Experimental Physics, TU Bergakademie Freiberg, Leipziger 23, 09599 Freiberg, Germany.
| | - Teofil Jesionowski
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, 60965 Poznan, Poland.
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Woziwodzka A, Gołuński G, Wyrzykowski D, Kaźmierkiewicz R, Piosik J. Caffeine and other methylxanthines as interceptors of food-borne aromatic mutagens: inhibition of Trp-P-1 and Trp-P-2 mutagenic activity. Chem Res Toxicol 2013; 26:1660-73. [PMID: 24102551 DOI: 10.1021/tx4002513] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Caffeine is one of the most important biologically active food components. In this article, we demonstrate that caffeine and other methylxanthines significantly reduce the mutagenic activity of two food-derived heterocyclic aromatic amines, Trp-P-1 and Trp-P-2 in the Salmonella typhimurium TA98 strain. Moreover, protection against Trp-P-1-induced mutagenicity was independent of liver S9 enzymatic fraction, suggesting that mechanisms other than modulation of mutagen bioactivation can contribute to the observed protective effects. UV-vis spectroscopy and computational studies revealed that methylxanthines intercept Trp-P-1 and Trp-P-2 in noncovalent molecular complexes, with association constants (KAC) in the 10(2) M(-1) range. Enthalpy values (ΔH about -30 kJ·mol(-1)) of mutagen-methylxanthine heterocomplexation obtained microcalorimetrically correspond to stacking (π-π) interactions. Finally, we demonstrated that the biological activity of Trp-P-1 and Trp-P-2 is strictly dependent on the presence of the mutagen in a free (unbound with methylxanthine) form, suggesting that mutagen sequestration in stacking heterocomplexes with methylxanthines can decrease its bioavailability and diminish its biological effects.
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Affiliation(s)
- Anna Woziwodzka
- Laboratory of Biophysics, Intercollegiate Faculty of Biotechnology UG-MUG , Kładki 24, 80-822 Gdańsk, Poland
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Heterocyclic Aromatic Amines Heterocomplexation with Biologically Active Aromatic Compounds and Its Possible Role in Chemoprevention. ACTA ACUST UNITED AC 2013. [DOI: 10.1155/2013/740821] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Food-borne heterocyclic aromatic amines (HCAs) are known mutagens and carcinogens present especially in Western population diet, which contains large amount of meat and its products. HCAs are capable of interacting with DNA directly through the formation of covalent adducts, however this process requires biological activation in liver, mainly by cytochrome P450 enzymes. This process may produce mutations and in consequence may contribute to the development of cancer. However, there are many studies showing that several biologically active aromatic compounds (BACs) may protect against genotoxic effects of HCAs. Direct interactions and noncovalent heterocomplexes formation may be one of the most important mechanisms of such protection. This work describes several BACs present in human diet, which are capable of molecular complexes formation with HCAs and protect cells as well as whole organisms against HCAs action.
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10
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Uptake of heterocyclic aromatic amine by insoluble dietary fiber in artificial gastric and intestinal juice. Environ Health Prev Med 2012; 9:47-52. [PMID: 21432298 DOI: 10.1007/bf02897931] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2003] [Accepted: 01/07/2004] [Indexed: 10/22/2022] Open
Abstract
OBJECTIVES The purpose of the presentin vitro study was to predict to what extent dietary fiber (DF) takes up heterocyclic aromatic amine (HAA) and how DF acts to intercept HAAsin vivo. METHODS The sorption isotherms of 2-amino-3-methyl-3H-imidazo[4,5-f]quinoline (IQ), 2-amino-3,4-dimethyl-3H-imidazo[4,5-f]quinoline (MeIQ), 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole acetate (Trp-P-1), and 3-amino-1-methyl-5H-pyrido[4,3-b]indole acetate (Trp-P-2) for DF were measured in artificial intestinal juice (AIJ) and artificial gastric juice (AGJ) at 37°C. The desorption of HAA from DF was measured in AGJ and AIJ. RESULTS The sorption isotherms were statistically classified into four types. The percentage of Trp-Ps taken up by carboxymethylated cellulose (CMC) and agar in AGJ (pH, 1.2) was 52-56% and 58-78%, respectively. On the other hand, the percentage of Trp-Ps taken up by CMC and agar in AIJ (pH, 6.8) was 97-98% and 87-89%, respectively. The percentage of IQ and MeIQ sorbed by CMC was 21-27% in AGJ and 100% in AIJ. Collagen and chitin did not remove any HAAs in AGJ, but removed 4-69% in AIJ. In the four-component solution, the percentage of HAA taken up by DF was almost the same or significantly increased, with a few exceptions, as compared with that in the one-component solution. CONCLUSION The results indicated that MeIQ is mainly held on the surface of CMC in AIJ, and that Trp-P-1 and Trp-P-2 are mainly held in the interior of agar in AGJ and AIJ. The results on sorption-desorptionin vitro indicate that sorbed HAAs in the stomach are held more firmly by agar than by CMC while DF passes through the human intestinal tract. CMC and agar would be expected to be more useful than collagen and chitin as agents intercepting HAAs.
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11
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Synytsya A, Synytsya A, Blafková P, Ederová J, Spěvaček J, Slepička P, Král V, Volka K. pH-Controlled Self-Assembling of meso-Tetrakis(4-sulfonatophenyl)porphyrin−Chitosan Complexes. Biomacromolecules 2009; 10:1067-76. [DOI: 10.1021/bm8011715] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alla Synytsya
- Department of Analytical Chemistry, Department of Carbohydrate Chemistry and Technology, Central Laboratories, Department of Solid State Engineering, Institute of Chemical Technology, Prague 16628, Czech Republic, and Institute of Macromolecular Chemistry, Academy of Science of the Czech Republic, Prague 16206, Czech Republic
| | - Andriy Synytsya
- Department of Analytical Chemistry, Department of Carbohydrate Chemistry and Technology, Central Laboratories, Department of Solid State Engineering, Institute of Chemical Technology, Prague 16628, Czech Republic, and Institute of Macromolecular Chemistry, Academy of Science of the Czech Republic, Prague 16206, Czech Republic
| | - Petra Blafková
- Department of Analytical Chemistry, Department of Carbohydrate Chemistry and Technology, Central Laboratories, Department of Solid State Engineering, Institute of Chemical Technology, Prague 16628, Czech Republic, and Institute of Macromolecular Chemistry, Academy of Science of the Czech Republic, Prague 16206, Czech Republic
| | - Jana Ederová
- Department of Analytical Chemistry, Department of Carbohydrate Chemistry and Technology, Central Laboratories, Department of Solid State Engineering, Institute of Chemical Technology, Prague 16628, Czech Republic, and Institute of Macromolecular Chemistry, Academy of Science of the Czech Republic, Prague 16206, Czech Republic
| | - Jiři Spěvaček
- Department of Analytical Chemistry, Department of Carbohydrate Chemistry and Technology, Central Laboratories, Department of Solid State Engineering, Institute of Chemical Technology, Prague 16628, Czech Republic, and Institute of Macromolecular Chemistry, Academy of Science of the Czech Republic, Prague 16206, Czech Republic
| | - Petr Slepička
- Department of Analytical Chemistry, Department of Carbohydrate Chemistry and Technology, Central Laboratories, Department of Solid State Engineering, Institute of Chemical Technology, Prague 16628, Czech Republic, and Institute of Macromolecular Chemistry, Academy of Science of the Czech Republic, Prague 16206, Czech Republic
| | - Vladimír Král
- Department of Analytical Chemistry, Department of Carbohydrate Chemistry and Technology, Central Laboratories, Department of Solid State Engineering, Institute of Chemical Technology, Prague 16628, Czech Republic, and Institute of Macromolecular Chemistry, Academy of Science of the Czech Republic, Prague 16206, Czech Republic
| | - Karel Volka
- Department of Analytical Chemistry, Department of Carbohydrate Chemistry and Technology, Central Laboratories, Department of Solid State Engineering, Institute of Chemical Technology, Prague 16628, Czech Republic, and Institute of Macromolecular Chemistry, Academy of Science of the Czech Republic, Prague 16206, Czech Republic
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Kawabe M, Futakuchi M, Tamano S, Shirai T, Hirose M. Modifying effects of chitin, chitosan and their related compounds on 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx) in a rat medium-term hepatocarcinogenesis model, and their post-initiation effects in a female rat 2-stage multi-organ carcinogenesis model. Food Chem Toxicol 2008; 46:2758-63. [DOI: 10.1016/j.fct.2008.04.032] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2007] [Revised: 04/15/2008] [Accepted: 04/24/2008] [Indexed: 10/22/2022]
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Attenuation of acridine mutagen ICR-191--DNA interactions and DNA damage by the mutagen interceptor chlorophyllin. Biophys Chem 2008; 135:69-75. [PMID: 18423964 DOI: 10.1016/j.bpc.2008.03.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2007] [Revised: 03/18/2008] [Accepted: 03/18/2008] [Indexed: 11/24/2022]
Abstract
We have investigated the ability of chlorophyllin (CHL) to interact with acridine mutagen ICR-191 (2-methoxy-6-chloro-9-(3-(2-chloroethyl)aminopropylamino)acridine) and also its ability to decrease binding of ICR-191 to DNA in a simple three-component competition system: CHL-ICR-DNA. Our data indicate a strong association of ICR-191 with CHL, stronger even than the association of ICR-191 with DNA. Calculations based on the measured affinity data show that a two- to three-fold excess of CHL reduces by about two-fold the concentration of the mutagen-DNA complex. We also exposed human leukemic HL-60 cells to ICR-191 in the absence and presence of CHL and measured the mutagen-induced DNA damage. The extent of DNA damage was assessed by analysis of histone H2AX phosphorylation. While ICR-191 induced significant increase in expression of phosphorylated H2AX (gammaH2AX), particularly in DNA replicating cells, this increase was totally abolished in the cells treated with ICR-191 in the presence of CHL.
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14
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Thanpitcha T, Sirivat A, Jamieson AM, Rujiravanit R. Physical and Electrical Properties of Chlorophyllin/Carboxymethyl Chitin and Chlorophyllin/Carboxymethyl Chitosan Blend Films. ACTA ACUST UNITED AC 2008. [DOI: 10.1002/masy.200850427] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Ferruzzi MG, Blakeslee J. Digestion, absorption, and cancer preventative activity of dietary chlorophyll derivatives. Nutr Res 2007. [DOI: 10.1016/j.nutres.2006.12.003] [Citation(s) in RCA: 295] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Takagai Y, Akiyama R, Igarashi S. Powerful preconcentration method for capillary electrophoresis and its application to analysis of ultratrace amounts of polycyclic aromatic hydrocarbons. Anal Bioanal Chem 2006; 385:888-94. [PMID: 16791569 DOI: 10.1007/s00216-006-0447-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2005] [Revised: 03/22/2006] [Accepted: 03/24/2006] [Indexed: 11/30/2022]
Abstract
For environmental analyses, a high-performance and powerful preconcentration system exceeding 1 x 10(7)-fold was developed that was composed of a blue cotton method (solid extraction method)/homogeneous liquid-liquid extraction method/on-line concentration method for capillary electrophoresis (CE). This system was named the "triplex concentration system" and it was achieved by finding a new phase-separation phenomenon (homogeneous liquid-liquid extraction) from a water-miscible organic solvent. Parts per trillion levels of polycyclic aromatic hydrocarbons (PAHs) were used as model analytical targets in this study. With the proposed method, 20-L levels of environmental water could be preconcentrated up to 1 x 10(7)-fold within a maximum of 1 h. The parts per trillion levels of PAHs were easily determined even using UV/CE, which has a serious sensitivity problem, and the detection limit of benzo[a]pyrene was 3.60 ppt. This system was also used as a practical monitoring method for the Miyata River (in Japan).
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Affiliation(s)
- Yoshitaka Takagai
- Laboratory of Physical and Chemical Science, Fukushima University, 1 Kanayagawa, Fukushima 960-1296, Japan
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17
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Pietrzak M, Wieczorek Z, Wieczorek J, Darzynkiewicz Z. The "interceptor" properties of chlorophyllin measured within the three-component system: intercalator-DNA-chlorophyllin. Biophys Chem 2006; 123:11-9. [PMID: 16650923 PMCID: PMC3488280 DOI: 10.1016/j.bpc.2006.03.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2006] [Revised: 03/28/2006] [Accepted: 03/30/2006] [Indexed: 10/24/2022]
Abstract
In aqueous solutions, in the presence of double-stranded DNA, chlorophyllin (CHL) forms complexes with each of the three DNA intercalators: acridine orange (AO), quinacrine mustard (QM), and doxorubicin (DOX). The evidence for these interactions was obtained by measurement changes in the absorption and fluorescence spectra of the mixtures containing DNA and intercalators during titration with CHL. A model of simple competition between DNA and CHL for the intercalator was used to define the measured interactions. The concentrations of the complexes estimated based on this model were consistent with the concentrations obtained by actual measurement of the absorption spectra. The present data provide further support for the role of chlorophyllin as an "interceptor" that may neutralize biological activity of aromatic compounds including mutagens and antitumor drugs.
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Affiliation(s)
- Monika Pietrzak
- Department of Physics and Biophysics, University of Warmia and Mazury in Olsztyn, Oczapowskiego 4, 10-719 Olsztyn, Poland
| | - Zbigniew Wieczorek
- Department of Physics and Biophysics, University of Warmia and Mazury in Olsztyn, Oczapowskiego 4, 10-719 Olsztyn, Poland
- Corresponding author: Tel./fax: +48 89 523 45 47. (Z. Wieczorek)
| | - Jolanta Wieczorek
- Department of Commodities and Food Research, University of Warmia and Mazury in Olsztyn, Cieszyński Square 1, 10-726 Olsztyn, Poland
| | - Zbigniew Darzynkiewicz
- Brander Cancer Research Institute at New York Medical College, Hawthorne, NY, 10532, USA
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Kitamura K, Nagao M, Hayatsu H, Morita M. Effect of chlorophyllin-chitosan on excretion of dioxins in a healthy man. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2005; 39:1084-1091. [PMID: 15773481 DOI: 10.1021/es048577u] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
We investigated the usefulness of chitosan and chlorophyllin-chitosan (chl-chitosan) administration for reduction of the body burden of environmental dioxins, including polychlorinated dibenzo-p-dioxins/dibenzofurans (PCDDs/ Fs) and coplanar polychlorinated biphenyls (Co-PCBs), by examining the excretion levels in the feces and sebum of a healthy man. The volunteer ate the same three meals every day during the 40-d experiment, which was composed of five phases (I-V) of 8 d each. In phase I (days 1-8), the volunteer was given only the basal diet. In phases II-V, 0.2 g of chitosan, 0.6 g of chitosan, 0.2 g of chl-chitosan, and 0.6 g of chl-chitosan, respectively, were administered immediately after each meal. We measured daily the amount of dioxins occurring in the feces and sebum during the last 5 d of each phase. The total toxicity equivalency (TEQ) of the dioxin in phases I-V were 27, 26, 38, 36, and 67 pg/d in the feces and 20, 19, 16, 16, and 14 pg/d in the sebum, compared with 74 pg/d in the food. The excretion of dioxins in the feces was significantly increased in phases III, IV, and V, being 140% (p < 0.05), 135% (p < 0.05), and 249% (p < 0.01) of the control level (phase I). Although the dioxin in the sebum was slightly decreased in phase V as compared with the control level, the total amount of excreted dioxin in feces and sebum was increased significantly in phase V, being 174% of the control level, which is almost the same level as that in the food. This indicates that chl-chitosan can prevent accumulation of dioxin, at least at the intake level of normal foods.
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Affiliation(s)
- Kimiyoshi Kitamura
- National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan.
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Negishi T, Shinoda A, Ishizaki N, Hayatsu H, Sugiyama C. No Effects of Chlorophyllin on IQ (2-Amino-3-methylimidazo[4,5-f]-quinoline)-genotoxicity and -DNA Adduct Formation in Drosophila. Biol Pharm Bull 2004; 27:242-3. [PMID: 14758044 DOI: 10.1248/bpb.27.242] [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: 11/22/2022]
Abstract
Previously we demonstrated that chlorophyllin suppressed the genotoxicities of many carcinogens. However, the genotoxicity of IQ (2-amino-3-methylimidazo[4,5-f]quinoline), a carcinogenic heterocyclic amine, was not suppressed in Drosophila. On the contrary, it has been reported that chrolophyllin suppressed the genotoxicity of IQ in rodents, rainbow trout and Salmonella. We demonstrated that the chlorophyllin-induced suppression of MeIQx (2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline)-genotoxicity was associated with a decrease in MeIQx-DNA adduct formation in Drosophila larval DNA. MeIQx represents another type of heterocyclic amine and is similar to IQ in structure. In this study we utilized (32)P-postlabeling to examine whether chlorophyllin reduced IQ-DNA adduct formation in Drosophila DNA in the same way as MeIQx. The results revealed that the formation of IQ-DNA adducts was unaffected by treatment with chlorophyllin. This was consistent with the absence of any inhibitory effect on genotoxicity as observed in the Drosophila repair test. These results suggest that IQ-behavior in Drosophila is not affected by chlorophyllin, indicating that the process of IQ-DNA adduct formation followed by expression of genotoxicity in Drosophila may be different from that in other organisms.
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Affiliation(s)
- Tomoe Negishi
- Faculty of Pharmaceutical Sciences, Okayama University, Tsushima, Okayama 700-8530, Japan
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Pietrzak M, Wieczorek Z, Stachelska A, Darzynkiewicz Z. Interactions of chlorophyllin with acridine orange, quinacrine mustard and doxorubicin analyzed by light absorption and fluorescence spectroscopy. Biophys Chem 2003; 104:305-13. [PMID: 12834849 PMCID: PMC3480723 DOI: 10.1016/s0301-4622(02)00387-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The present study was designed to estimate the ability of chlorophyllin (CHL) to interact with two acridine mutagens, quinacrine mustard (QM) and acridine orange (AO), and with the antitumor anthracycline doxorubicin (Dox). To this end, aqueous solutions of QM, AO or Dox during titration with CHL were subjected to spectrophotometry and spectrofluorimetry to detect possible interactions between these reagents. The data indicate that CHL forms complexes with AO, QM or Dox in these solutions. The presence of the complexes was manifested by a bathochromic shift of the absorption spectra, as well as by strong quenching of the fluorescence of each of these mutagens in the presence of CHL. CHL, thus, may serve as an interceptor of these mutagenic acridines in different in vivo or in vitro applications. Its ability to interact with Dox may potentially be utilized to detoxify patients overdosed with this or similar drugs.
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Affiliation(s)
- Monika Pietrzak
- Department of Physics and Biophysics, University of Warmia and Mazury in Olsztyn, Oczapowskiego 4, 10-719 Olsztyn, Poland
| | - Zbigniew Wieczorek
- Department of Physics and Biophysics, University of Warmia and Mazury in Olsztyn, Oczapowskiego 4, 10-719 Olsztyn, Poland
- Corresponding author. Tel./fax: +48-89-523-4547. (Z. Wieczorek)
| | - Alicja Stachelska
- Department of Physics and Biophysics, University of Warmia and Mazury in Olsztyn, Oczapowskiego 4, 10-719 Olsztyn, Poland
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Sugiyama C, Nakandakari N, Hayatsu H, Arimoto-Kobayashi S. Preventive effects of chlorophyllin fixed on chitosan towards DNA adduct formation of 3-amino-1-methyl-5H-pyrido [4,3-b]indole in CDF1 mice. Biol Pharm Bull 2002; 25:520-2. [PMID: 11995936 DOI: 10.1248/bpb.25.520] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chlorophyllin, a water-soluble derivative of chlorophyll, is known to suppress the mutagenic and carcinogenic action of compounds having polycyclic structures, e.g., heterocyclic amines and aflatoxin B1. Recently, we reported that chlorophyllin fixed on chitosan (chl-chitosan), which is insoluble in water, can efficiently and tightly trap these heterocyclic amines. We have studied whether this adsorption to chl-chitosan can result in an interference with DNA-adduct formation caused by 3-amino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2), a heterocyclic amine, in CDF1 mice, in which Trp-P-2 had been shown to induce hepatocellular carcinomas. Mice were fed a diet containing Trp-P-2 with or without chl-chitosan. After 3 d of feeding, DNA-adduct formation in liver and lung was examined by 32P-postlabeling analysis. Adducts formed from Trp-P-2 were significantly decreased by the chl-chitosan addition (p<0.05, t-test). These results suggest that the uptake of Trp-P-2 into the mouse was lowered by its adsorption to chl-chitosan, either within the digestive tract or within the food itself. This trapping agent, chl-chitosan, is thus worthy of study for cancer chemoprevention.
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Anzai N, Taniyama T, Nakandakari N, Sugiyama C, Negishi T, Hayatsu H, Negishi K. Inhibition of DNA adduct formation and mutagenic action of 3-amino-1-methyl-5h-pyrido[4,3-b]indole by chlorophyllin-chitosan in rpsL transgenic mice. Jpn J Cancer Res 2001; 92:848-53. [PMID: 11509116 PMCID: PMC5926831 DOI: 10.1111/j.1349-7006.2001.tb01171.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
We have studied the inhibitory effect of chlorophyllin-chitosan (Chl-Chi) complex, an insoluble form of chlorophyllin, on the DNA adduct formation and mutagenesis by a heterocyclic food mutagen-carcinogen, 3-amino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2), in mice carrying the E. coli rpsL gene as a mutagenesis reporter. Upon administration of a diet containing 0.002% or 0.01% Trp-P-2, DNA adducts were formed in various tissues in a dose-dependent manner, with the maximum level observed in the liver. Addition of 3% Chl-Chi to the diet reduced the Trp-P-2 adduct by up to 90%. The rpsL mutant frequencies increased significantly in both the liver and spleen upon administration of a 0.01% Trp-P-2 diet. Addition of Chl-Chi to the diet decreased these induced mutant frequencies to the background level. No harmful effect of Chl-Chi was detected during these experiments. The results show that Chl-Chi may be a candidate chemopreventive agent against the genotoxic action of Trp-P-2, and possibly also other aromatic carcinogens in the diet.
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Affiliation(s)
- N Anzai
- Gene Research Center, Okayama University, 1-1-1 Tsushima-Naka, Okayama 700-8530, Japan.
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Galvano F, Piva A, Ritieni A, Galvano G. Dietary strategies to counteract the effects of mycotoxins: a review. J Food Prot 2001; 64:120-31. [PMID: 11198434 DOI: 10.4315/0362-028x-64.1.120] [Citation(s) in RCA: 172] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We reviewed various dietary strategies to contain the toxic effects of mycotoxins using antioxidant compounds (selenium, vitamins, provitamins), food components (phenolic compounds, coumarin, chlorophyll and its derivatives, fructose, aspartame), medicinal herbs and plant extracts, and mineral and biological binding agents (hydrated sodium calcium aluminosilicate, bentonites, zeolites, activated carbons, bacteria, and yeast). Available data are primarily from in vitro studies and mainly focus on aflatoxin B1, whereas much less information is available about other mycotoxins. Compounds with antioxidant properties are potentially very efficacious because of their ability to act as superoxide anion scavengers. Interesting results have been obtained by food components contained in coffee, strawberries, tea, pepper, grapes, turmeric, Fava tonka, garlic, cabbage, and onions. Additionally, some medicinal herbs and plant extracts could potentially provide protection against aflatoxin B1 and fumonisin B1. Activated carbons, hydrated sodium calcium aluminosilicate, and bacteria seem to effectively act as binders. We conclude that dietary strategies are the most promising approach to the problem, considering their limited or nil interference in the food production process. Nevertheless, a great research effort is necessary to verify the in vivo detoxification ability of the purposed agents, their mode of action, possible long-term drawbacks of these detoxification-decontamination procedures, and their economical and technical feasibility.
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Affiliation(s)
- F Galvano
- Dipartimento di Scienze e Tecnologie Agroforestali ed Ambientali, Universita di Reggio, Gallina di Reggio Calabria, Italy.
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Hayatsu H, Sugiyama C, Arimoto-Kobayashi S, Negishi T. Porphyrins as possible preventers of heterocyclic amine carcinogenesis. Cancer Lett 1999; 143:185-7. [PMID: 10503901 DOI: 10.1016/s0304-3835(99)00122-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Our studies have shown that hemin and chlorophyllin can directly interact with heterocyclic amines (HAs) and prevent their mutagenic actions. Hemin and chlorophyllin can trap HAs efficiently, probably by forming face-to-face complexes with them. The trapping was most clearly demonstrated by use of solid-supported porphyrins, hemin-agarose and chlorophyllin-chitosan. Furthermore, spectroscopic measurements have suggested that there are interactions in solution between the porphyrins and the HAs. A number of in vivo data have been accumulated by efforts from many laboratories for the anticarcinogenic and antigenotoxic properties of porphyrins, particularly chlorophyllin, against HAs.
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Affiliation(s)
- H Hayatsu
- Faculty of Pharmaceutical Sciences, Okayama University, Tsushima, Japan.
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Arimoto-Kobayashi S, Inada N, Nakano H, Rai H, Hayatsu H. Iron-chlorophyllin-mediated conversion of 3-hydroxyamino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2(NHOH)) into its nitroso derivative. Mutat Res 1998; 400:259-69. [PMID: 9685672 DOI: 10.1016/s0027-5107(98)00033-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Early work from our laboratory has shown that the mutagenicity of heterocyclic amines in Salmonella can be inhibited by hemin and chlorophyllins. We have speculated that the inhibition is a result of complex formation between heterocyclic amines and the pigments, and the speculation has been given a line of experimental evidence. We have now found that ferric-chlorophyllin (Fe-chlorophyllin) can modify the mutagenicity of 3-hydroxyamino-1-methyl-5H-pyrido[4, 3-b]indole (Trp-P-2(NHOH)), a metabolically activated form of 3-amino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2). The mutagenicity of Trp-P-2(NHOH) in Salmonella typhimurium TA 98 (without S9) was strongly inhibited by an addition of an equimolar Fe-chlorophyllin in the pre-incubation mixture. Fe-chlorophyllin also inhibited the mutagenicity of 2-hydroxyamino-6-methyldipyrido[1,2-a:3',2'-d] imidazole (Glu-P-1(NHOH)). A rapid change in the UV spectrum of a mixture of Trp-P-2(NHOH) and Fe-chlorophyllin was observed. Analysis by high performance liquid chromatography showed that Trp-P-2(NHOH) was converted into 3-nitroso-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2(NO)), the mutagenic potency of which is a quarter of that of Trp-P-2(NHOH). Furthermore, the mutagenicity of Trp-P-2(NO), in turn, was inhibited by Fe-chlorophyllin. We conclude that the suppression of the mutagenicity of Trp-P-2(NHOH) is ascribable to the oxidative function of Fe-chlorophyllin, coupled with its ability to form complex formation with the planar surface of the heterocyclic amine molecules.
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Affiliation(s)
- S Arimoto-Kobayashi
- Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima, Okayama 700, Japan.
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