The study found no evidence of ion-cyclotron resonance affecting transepithelial current in turtle colonic tissue exposed to magnetic fields.
This is the authors' abstract. We don't add key points for this paper.
Colonic tissue from the turtle (Pseudemys scripta) was exposed in a Ussing chamber to simultaneously applied static and time-varying magnetic fields. Transepithelial differences of potential were monitored as frequency of the AC field was varied continuously or in discrete steps from 3 to 770 Hz. Density of the DC field was varied from 10 to 220 microT and that of the AC field from 1 to 20 microT. Short-circuit currents through tissue were monitored for changes that might have been observed under ion-cyclotron resonance (ICR) conditions for each of several ions: H+, Li+, Na+, K+, Ca2+, and Cl-. No discernible changes of transepithelial current were observed. The negative findings are discussed in relation to positive and negative findings that have appeared in the literature.
No effect in turtle colon model; leaves open ion-cyclotron resonance relevance to mammalian epithelial transport.
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Liboff et al. (1991) studied this question.
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