Electron Paramagnetic Resonance and Its Possible Use in the Pharmacological and Toxicological Studies of Drugs

Authors

  • Anton Štalc
  • Marjeta Šentjurc

DOI:

https://doi.org/10.5644/Radovi.262

Abstract

Electron paramagnetic resonance is a spectroscopic method which can be also used in the study of different pharmacological and toxicological properties of drugs, such as drug resorption, distribution, excretion and metabolism. Further, various effects mediated via receptors or enzymes and effects not mediated via receptors, i. e. nonspecific effects on membrane due to physical and/or Chemical properties of drug can be investigated. Some essential results of our own studies concerning the properties of acetylcholinesterase and cholinoreceptor are presented. Beside this, the influence of cholinergic substances on membrane fluidity is described.

References

Chignell, C. F. (1979): Spin labeling in pharmacology. U: Berliner, L. J. (ed.) Spin labeling II — theory and applications, Academic Press, New York, p. 223.

Gilmer Kury, P., Ramwell, P. W. and McConell, H. M. (1974): The effect of prostaglandins E and E2 on the human erythrocyte as monitored by spin labels. Biochem. Biophys. Res. Commun. 56, 478—483.

Janzen, E. G. and Blackburn B. J. (1971): Detection and Identification of short-lived free radicals by electron spin resonance trapping. Acc. Chem. Res. 4, 31—40.

Leute, R. K., Ullman, E. F., Goldstein, A. and H erzenberg, L. A. (1972): Spin immunoassay technique for determination of morphine. Nature new biol. 236, 93—94.

Montgomery, M. R., Hollzman, J. L., Leute, R. K., Devvees, J. S. and B o 1 z, A. (1975): Determination of diphenylhidantoin in human serum by spin immunoassay. Clin. Chem. 21, 221—226.

Pečar, S., Šentjurc, M., Schara, M., Nemec, M., Sorg, B. and Hecker, E. (1982): Spin-labeled phorbol ester and their interaction with cellular membranes. U: Hecker, E. (ed.) Carcinogenesis 7, Raven Press, New

York, p. 541.

Schara, M., Pečar, S., Nemec, M. and Šentjurc, M. (1983): Spin probe and spin label binding to bovine serum albumin. Farm, vestnik 34, 139—149.

Swartz, H. M„ Bollon, J. R. and B o r g, D. C. (1972): Biological application of electron spin resonance. Wiles-Interscience, New York.

Šentjurc, M., Schara, M., Nemec, M., Sava, G. and Giraldi, T. (1983): The influence of antimetastatic drugs on L-1210 cell membranes. Farm, vestnik 34, 228—238.

Šentjurc, M., Schara, M. and Nemec, M. (1984): Interaction of liposomes with other lipid lilayers. Studia biophys 103, 81—87.

Šentjurc, M. in Stale, A. (1976): Uporaba elektronske paramagnetne resonance v biologiji in meidcini. Med. razgl. 15, 259—279.

Šentjurc, M., Stale, A. and Župančić, A. O. (1976): On the location of active serine of membrane acetylcholinesterase studied by the EPR method. Biochim. Biophys. Acta 438, 131—137.

Šentjurc, M. and Stale, A. (1985): The influence of cholinergic substances on the membrane fluidity. Period, biol. 87 314—316.

Šentjurc, M., Štale, A., Pećar, S. and Schara, M.: Covalent spin labeling in acetylcholinesterase studies. U: Zhdanov, R. I. (ed.) Paramagnetic models of drugs and biochemicals. CRC Press INC, Florida (u štampi).

Stale, A., Sojer, J., Šentjurc, M., Pećar, S. and Župančić, A. O. (1984): An introduetion to the study of the microgeography of the cholinoreceptor active site by struetural analogs of acetylcholine. Farm, vestnik 35,

5—12.

Wee, V. T., Feldman, R. J., Tanis, R. J. and Chignell, C. I. (1976): A comparative study of mammalian erythrocyte carbonic anhydrases employing spin-labeled analogs of inhibitory sulfonamides. Mol. Pharmacol. 72, 832—843.

Weiland, G., Georgia, B., Wee, V. T., Chignell, C. F. and Taylor, P. (1976): Ligand interactions with cholinergic receptor-enriched membranes from Torpedo: Influence of agonist exposure on receptor properties. Mol. Pharmacol. 72, 1091—1105.

Published

11.09.1986

Issue

Section

Works

How to Cite

Electron Paramagnetic Resonance and Its Possible Use in the Pharmacological and Toxicological Studies of Drugs. (1986). Acta Medica Academica, 23, 257-265. https://doi.org/10.5644/Radovi.262