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Titolo:
MAGNETIC-FIELDS ALTER ELECTRICAL-PROPERTIES OF SOLUTIONS AND THEIR PHYSIOLOGICAL-EFFECTS
Autore:
AYRAPETYAN SN; GRIGORIAN KV; AVANESIAN AS; STAMBOLTSIAN KV;
Indirizzi:
ARMENIAN ACAD SCI,DEPT BIOPHYS,HASRATIAN 7 YEREVAN 375044 ARMENIA
Titolo Testata:
Bioelectromagnetics
fascicolo: 2, volume: 15, anno: 1994,
pagine: 133 - 142
SICI:
0197-8462(1994)15:2<133:MAEOSA>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
OPERANT-BEHAVIOR; HELIX-POMATIA; CALCIUM-ION; SENSITIVITY; NEURONS; TISSUE; EFFLUX; RATS;
Keywords:
MAGNETIC FIELD; NEURON; CONDUCTANCE; CELL VOLUME; CA; WATER OF HYDRATION; CYCLIC NUCLEOTIDE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
S.N. Ayrapetyan et al., "MAGNETIC-FIELDS ALTER ELECTRICAL-PROPERTIES OF SOLUTIONS AND THEIR PHYSIOLOGICAL-EFFECTS", Bioelectromagnetics, 15(2), 1994, pp. 133-142

Abstract

Calcium chloride and snail physiological salt solutions were exposed to static magnetic fields (2.3-350 mT), and the physical properties ofthe solutions as well as their biologic effects were studied. Our preliminary observations show that these fields alter physicochemical properties of CaCl2 solutions and the functional effects of physiologicalsolutions. Experiments on CaCl3 solutions demonstrated field-dependent changes of electrical conductivity, with the magnitude and the direction of conductivity change being a function of both concentration andfield intensity. The changes in conductivity were maintained for periods in excess of 1 h after exposure. Conductivity changes were not found after exposure of physiological solutions to static magnetic fields, but changes of biological consequence did occur. Other experiments showed that there were several changes in cellular function observed inganglia and isolated neurons of Helix pomatia when the perfusing medium was changed from the normal physiologic solution to the same solution after exposure to magnetic fields. These changes include membrane depolarization and increased action potential discharge reduced uptake of Ca into cells. altered content of cyclic nucleotides in ganglia. and increased volume of isolated cell bodies. A change in hydration of calcium ions may be one of the consequences of magnetic-field exposure,and in physiological solutions this change may have functional consequences. (C) 1994 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/11/20 alle ore 08:29:18