Study on the effect of electromagnetic impulse on neurotransmitter metabolism in nerve cells by high-performance liquid chromatography-electrochemical detection coupled with microdialysis.
In this paper, a reverse-phase high-performance liquid chromatographic method using a chemically modified electrode coupled with microdialysis was developed to study the effect of electromagnetic impulse (EMI) on monoamine neurotransmitter metabolism in nerve cells. To detect the monoamines and their metabolites, a poly (para-aminobenzoic acid) (P-pABA)-modified electrode was prepared. The modified electrode exhibited efficiently electrocatalytic oxidation for monoamines and their metabolites with relatively high sensitivity, stability, and long life. Nerve cells were primarily cultured. EMI was radiated to three experimental model nerve cells: (i) on mature nerve cells, (ii) on the culture medium, and (iii) on juvenile nerve cells for various periods of time. Then the levels of monoamines in the culture medium were detected by high-performance liquid chromatography-electrochemical detection. The data indicated that electromagnetic fields could influence neurotransmitter metabolism by direct effect on nerve cells or effect on the nutrient medium and that the effect was not only relevant with the length of radiation time, but also with the growing state of the nerve cells.
Department of Chemistry, East China Normal University, Shanghai, People's Republic of China.
Fang
F
Xu
Mengnan
M
Gao
Lin
L
Wang
Litong
L
Jin
D010129:4-Aminobenzoic Acid / Q000737:chemistry / Q000378:metabolism; D000818:Animals; D015306:Biogenic Monoamines / Q000378:metabolism*; D001923:Brain Chemistry; D002478:Cells, Cultured; D002851:Chromatography, High Pressure Liquid; D004563:Electrochemistry; D004566:Electrodes; D004574:Electromagnetic Fields; D005260:Female; D017551:Microdialysis; D009474:Neurons / Q000378:metabolism / Q000528:radiation effects*; D010084:Oxidation-Reduction; D051381:Rats; D017207:Rats, Sprague-Dawley; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013473:Sunscreening Agents / Q000737:chemistry / Q000378:metabolism
D015306:Biogenic Monoamines; D013473:Sunscreening Agents; D010129:4-Aminobenzoic Acid