Magnetic Field Effects on the Behavior of Radicals in Protein and DNA Environments

Photochemistry and Photobiology

Volumn 67, Issue 1, 1998, Pages 111-118

  Mohtat, N ^a   Cozens, F L ^a   Hancock Chen, T ^a   Scaiano, J C ^a   McLean, J ^b   Kim, J ^b  

^a UNIVERSITY OF OTTAWA   (Canada)

^b HEALTH CANADA   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

BOVINAE; MUS;

BENZOPHENONE; BENZOPHENONE DERIVATIVE; BOVINE SERUM ALBUMIN; DNA; FREE RADICAL; SERUM ALBUMIN;

ANIMAL; ARTICLE; CATTLE; CHEMISTRY; HUMAN; LASER; MAGNETISM; PHOTOLYSIS;

ANIMALS; BENZOPHENONES; CATTLE; DNA; FREE RADICALS; HUMANS; LASERS; MAGNETICS; PHOTOLYSIS; SERUM ALBUMIN; SERUM ALBUMIN, BOVINE;

EID: 0031613310     PISSN: 00318655     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1751-1097.1998.tb05173.x     Document Type: Article

References (48)

1. Turro, N. J. and B. Kraeutler (1980) Magnetic field and magnetic isotope effects in organic photochemical reactions. A novel probe of reaction mechanisms and a method for enrichment of magnetic isotopes. Acc. Chem. Res. 13, 369-377.
2. Turro, N. J. (1982) Laser flash spectrometric investigations of biradicals and caged radical pairs. Tetrahedron 38, 809-817.
3. Gould, I. R., M. B. Zimmt, N. J. Turro, B. H. Baretz and G. F. Lehr (1985) Dynamics of radical pair reactions in micelles. J. Am. Chem. Soc. 107, 4607-4612.
4. Hileman, B. (1993) Health effects of electromagnetic fields remain unresolved. C & E News, November 8, pp. 15-29.
5. Scaiano, J. C., F. L. Cozens and J. McLean (1994) Model for the rationalization of magnetic field effects in vivo. Application of the radical-pair mechanism to biological systems. Photochem. Photobiol. 59, 585-589.
6. Grissom, C. B. (1995) Magnetic field effects in biology: a survey of possible mechanisms with emphasis on radical-pair recombination. Chem. Rev. 95, 3-24.
7. McLauchlan, K. (1992) Are environmental magnetic fields dangerous? Physics World (January), pp. 41-45.
8. Walleczek, J. (1995) Magnetokinetic effects on radical pairs: a paradigm for magnetic field interactions with biological systems at lower than thermal energy. Adv. Chem. (ACS) 250, 395-420.
9. 12 ethanolamine ammonia lyase: evidence for a radical mechanism. Science 263, 958-960.
10. 12 enzymes. J. Am. Chem. Soc. 115, 12152-12157.
11. Armitage, B., C. Yu, C. Devadoss and G. B. Schuster (1994) Cationic anthraquinone derivatives as catalytic DNA photonucleases: mechanisms for DNA damage and quinone recycling. J. Am. Chem. Soc. 116, 9847-9859.
12. Breslin, D. T. and G. B. Schuster (1996) Anthraquinone photonucleases: mechanisms for GG-selective and nonselective cleavage of double-stranded DNA. J. Am. Chem. Soc. 118, 2311-2319.
13. Alomar, A. (1985) Ketoprofen photodermatitis. Contact Dermatitis 12, 112-113.
14. Bosca′, F., M. A. Miranda, G. Carganico and D. Mauleón (1994) Photochemical and photobiological properties of ketoprofen associated with the benzophenone chromophore. Photochem. Photobiol. 60, 96-101.
15. Dormán, G. and G. D. Prestwich (1994) Benzophenone photophores in biochemistry. Biochemistry 33, 5661-5673.
16. Chignell, C. F. and R. H. Sik (1995) Magnetic field effects on the photohemolysis of human erythrocytes by ketoprofen and protoporphyrin IX. Photochem. Photobiol. 62, 205-207.
17. Cozens, F. L. and J. C. Scaiano (1993) A comparative study of magnetic field effects on the dynamics of geminate and random radical pair processes in micelles. J. Am. Chem. Soc. 115, 5204-5211.
18. Scaiano, J. C., N. Mohtat, F. L. Cozens, J. McLean and A. Thansandote (1994) Application of the radical pair mechanism to free radicals in organized systems: can the effects of 60 Hz be predicted from studies under static fields? Bioelectromagnetics 15, 549-554.
19. Scaiano, J. C., M. Tanner and D. Weir (1985) Exploratory study of the intermolecular reactivity of excited diphenylmethyl radicals. J. Am. Chem. Soc. 107, 4396-4403.
20. Prütz, W. A. (1984) Inhibition of DNA-ethidium bromide intercalation due to free radical attack upon DNA. I. Comparison of the effects of various radicals. Radiat. Environ. Biophys. 23, 1-6.
21. .-. Radiat. Environ. Biophys. 23, 7-18.
22. Scaiano, J. C. (1980) Solvent effects in the photochemistry of xanthone. J. Am. Chem. Soc. 102, 7747-7753.
23. Scaiano, J. C. (1973/74) Intermolecular photoreductions of ketones. J. Photochem. 2, 81.
24. Scaiano, J. C., E. B. Abuin and L. C. Stewart (1982) Photochemistry of benzophenone in micelles. Formation and decay of radical pairs. J. Am. Chem. Soc. 104, 5673-5679.
25. Boate, D. R., L. J. Johnston and J. C. Scaiano (1989) A laser flash photolysis study of the behaviour of polyfluorophenyl ketones in solution. Can. J. Chem. 67, 927-932.
26. Chatgilialoglu, C. (1989) Electronic absorption spectra of free radicals. In Handbook of Organic Photochemistry. CRC Press, Boca Raton, FL.
27. Scaiano, J. C. (1983) Photochemistry in organized systems. Trans. R. Soc. Can. 21, 133-142.
28. Steiner, U. E. and J. Q. Wu (1992) Electron spin relaxation of photochemically generated radical pairs diffusing in micellar supercages. Chem. Phys. 162, 53-67.
29. Evans, C. H., J. C. Scaiano and K. U. Ingold (1992) Influence of micellar size on the decay of triplet-derived radical pairs in micelles. J. Am. Chem. Soc. 114, 140-146.
30. Evans, C., K. U. Ingold and J. C. Scaiano (1988) Magnetic field effects on the decay of ketyl-aryloxy radical pairs in micellar solution. J. Phys. Chem. 92, 1257-1262.
31. Encinas, M. V., E. A. Lissi, M. Vasquez, A. F. Olea and E. Silva (1989) Photointeraction of benzophenone triplet with lysozyme. Photochem. Photobiol. 49, 557-563.
32. Das, P. K., M. V. Encinas, S. Steenken and J. C. Scaiano (1981) Reaction of tert-butoxy radicals with phenols. Comparison with the reactions of carbonyl triplets. J. Am. Chem. Soc. 103, 4162-4166.
33. Barra, M., C. Bohne, A. Zanocco and J. C. Scaiano (1992) Exploratory study of the application of transmission and diffuse-reflectance laser techniques in the study of free radical processes in vesicles. Langmuir 8, 2390-2395.
34. Atherton, S. J. and C. M. G. Dymond (1989) Formation of clusters between ionic species and sodium dodecyl sulfate below the critical micelle concentration. Ethidium ions and divalent metal ions. J. Phys. Chem. 93, 6809-6813.
35. Habersbergerová, A., I. Janovsky and J. Teply (1972) Absorption spectra of intermediates formed during radiolysis and photolysis. Part II. Radiat. Res. Rev. 4, 123-231.
36. Lin, Y. and C. D. Jonah (1992) Dependence of the benzophenone anion solvation on solvent structure. J. Phys. Chem. 96, 10119-10124.
37. Wood, P. D. and R. W. Redmond (1996) Triplet state interactions between nucleic acid bases in solution at room temperature: intermolecular energy and electron transfer. J. Am. Chem. Soc. 118, 4256-4263.
38. Gut, I. G., P. D. Wood and R. W. Redmond (1996) Interaction of triplet photosensitizers with nucleotides and DNA in aqueous solution at room temperature. J. Am. Chem. Soc. 118, 2366-2373.
39. Forbes, M. D. E. (1995) Time-resolved electron paramagnetic resonance spectroscopy as a structural and mechanistic tool in organic chemistry. The Spectrum 8, 1-8.
40. Closs, G. L., M. D. E. Forbes and J. R. Norris, Jr. (1987) Spinpolarized electron paramagnetic resonance spectra of radical pairs in micelles. Observation of electron spin-spin interactions. J. Phys. Chem. 91, 3592-3599.
41. Tarasov, V. F., N. D. Ghatlia, N. I. Avdievich and N. J. Turro (1993) Exchange interaction in micellized radical pairs. Z. Phys. Chem. 182, 227-244.
42. Scaiano, J. C., S. Monahan and J. Renaud (1997) Dramatic effect of magnetite particles on the dynamics of photogenerated free radicals. Photochem. Photobiol. 65, 759-762.
43. Scaiano, J. C. and D. J. Lougnot (1984) Magnetic field effects on the behaviour of carbene-derived radical pairs in microemulsions. Examination of carbene multiplicities. Chem. Phys. Lett. 105, 535-538.
44. Dormán, G. and G. D. Prestwich (1993) ChemTracts 6, 131-138.
45. Scaiano, J. C., F. L. Cozens and N. Montat (1995) Influence of combined AC-DC magnetic fields of free radicals in organized and biological systems. Development of a model and application of the radical pair mechanism to radicals in micelles. Photochem. Photobiol. 62, 818-829.
46. von Sonntag, C. (1991) The chemistry of free-radical-mediated DNA damage. In Physical and Chemical Mechanisms in Molecular Radiation Biology. Plenum Press, New York.
47. Dean, R. T., S. Gieseg and M. J. Davies (1993) Reactive species and their accumulation on radical damaged proteins. Trends Biochem. Sci. 18, 437-441.
48. Breimer, L. H. (1990) Molecular mechanisms of oxygen radical carcinogenesis and mutagenesis: the role of DNA base damage. Mol. Carcinogenesis 3, 188-197.