Can I read Membrane Potential and Currents of Isolated Heart Muscle Cells Exposed to Pulsed Radio Frequency Fields on EtoBox?

Membrane Potential and Currents of Isolated Heart Muscle Cells Exposed to Pulsed Radio Frequency Fields by K.W. Linz; C. von Westphalen; J. Streckert; V. Hansen; R. Meyer is a Biochemistry, Genetics and Molecular Biology article available to read on EtoBox.

What is Membrane Potential and Currents of Isolated Heart Muscle Cells Exposed to Pulsed Radio Frequency Fields about?

The influence of radio frequency (RF) fields of 180, 900, and 1800 MHz on the membrane potential, action potential, L-type Ca 2 current and potassium currents of isolated ventricular myocytes was tested. The study is based on 90 guinea-pig myocytes and 20 rat myocytes. The fields were applied in rectangular waveguides (1800 MHz at 80, 480, 600, 720, or 880 mW/kg and 900 MHz, 250 mW/kg) or in a TEM-cell (180 MHz, 80 mW/kg and 900 MHz, 15 mW/kg). Fields of 1800 and 900 MHz were pulsed according to the GSM-standard of cellular phones. The specific absorption rates were determined from computer simulations of the electromagnetic fields inside the exposure devices by considering the structure of the physiological test arrangement. The electrical membrane parameters were measured by whole cell patch-clamp. None of the tested electrophysiological parameters was changed significantly by exposure to RF fields. Another physical stimulus, lowering the temperature from 36 C to 24 C, decreased the current amplitude almost 50% and shifted the voltage dependence of the steady state activation parameter d I and inactivation parameter f I of L-type Ca 2 current by about 5 mV. However, at this lower

Who reads Membrane Potential and Currents of Isolated Heart Muscle Cells Exposed to Pulsed Radio Frequency Fields?

Author

K.W. Linz; C. von Westphalen; J. Streckert; V. Hansen; R. Meyer

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0197-8462)

Published

1999

Language

EN

Field

Biochemistry, Genetics and Molecular Biology (Life Sciences)