The vertically polarized magnetic field has no effect on the content of pteridine in mouse liver

We investigate the content of pteridine levels in mouse liver under exposure to a 50 Hz linearly (vertically) polarized magnetic field. Tetrahydrobiopterin (BR₄), neopterin (NP), biopterin (BP) and GTP-CHI activity were measured. Five week-old mice were exposed continuously to 50 Hz, 0.35 mT (RMS) for periods of 1, 3 and 6 weeks. The level of BH₄ in the exposed group was no different from that of the sham-exposed group. The levels of NP in both groups became almost the same. Due to no changes in NP and BH₄ level, it is suggested that the vertically polarized magnetic field does not affect the immune system and biosynthetic pathway from q-BH₂ to BH₄ in mice. There were no changes in the level of BP between the two groups. From these results, the vertically polarized magnetic field does not affect the pteridine level in mice.