Exposure to 50 Hz electromagnetic field changes the efficiency of the scorpion alpha toxin.
Jankowska M, Pawlowska-Mainville A, Stankiewicz M, Rogalska J, Wyszkowska J. · 2015
View Original AbstractExposure to 50 Hz ELF-EMF modified the mode of action of the scorpion alpha toxin LqhαIT in cockroach nervous system experiments and in whole-insect biotests.
Plain English Summary
Researchers assumed that exposure to ELF-EMF would change the effects of a scorpion alpha toxin called LqhαIT on cockroach nerve function and on whole insects. Experiments were performed in vivo on cockroaches (Periplaneta americana) and in vitro on isolated cockroach abdominal nerve cord with cerci. The exposure to ELF-EMF modified the effects of LqhαIT on activity of the cercal nerve and of the connective nerve, with a decrease in the toxin effect on the cercal nerve but an increase on the connective nerve. Biotests showed that toxicity of LqhαIT on cockroaches was reduced by the exposure to ELF-EMF at 0.7 and 7 mT.
Why This Matters
Three groups were compared in the biotests: the control one and the two exposed to ELF-EMF at 0.7 and 7 mT. A ten times higher ELF-EMF was tested on whole insects to account for compensatory mechanisms in organisms. The toxin appeared as a useful tool in distinguishing between the primary and the secondary effects of ELF-EMF.
Exposure Details
- Magnetic Field
- 0.7, 7 mT
- Source/Device
- 50 Hz
Exposure Context
This study used 0.7, 7 mT for magnetic fields:
- 35Kx above the Building Biology guideline of 0.2 mG
- 7Kx above the BioInitiative Report recommendation of 1 mG
Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.
Where This Falls on the Concern Scale
Study Details
We assumed that the exposure to ELF-EMF 0.7 mT will change the effects of the insect selective scorpion alpha toxin (recombinant LqhαIT from Leiurus quinquestriatus hebraeus) at the level of the cercal nerve function, the synaptic transmission and on the level of entire insect organism. Taking into account the compensatory mechanisms in organisms, we tested in addition ten times higher ELF-EMF on whole insects.
Experiments were performed in vivo on cockroaches (Periplaneta americana) and in vitro – on isolated...
The exposure to ELF-EMF (0.7 mT) modified the effects of LqhαIT (5 × 10−8 M) on activity of the cerc...
The exposure to 50 Hz ELF-EMF modified the mode of action of the anti-insect scorpion alpha toxin LqhαIT at cellular level of the cockroach nervous system and in biotests. Toxin appeared as a usefull tool in distinguishing between the primary and the secondary effects of ELF-EMF.
Show BibTeX
@article{m_2015_exposure_to_50_hz_659,
author = {Jankowska M and Pawlowska-Mainville A and Stankiewicz M and Rogalska J and Wyszkowska J.},
title = {Exposure to 50 Hz electromagnetic field changes the efficiency of the scorpion alpha toxin.},
year = {2015},
url = {https://www.scielo.br/j/jvatitd/a/vjJKhw4SDL9rMc38YWPjRvR/?lang=en&format=html},
}