Related Experiment Video
Updated: Jan 26, 2026

Author Spotlight: A Single-Entry Point Endoscopic Intraventricular Approach for Third Ventriculostomy and Pineal Biopsy
Published on: June 28, 2024
Evidence that extremely low frequency Ca(2+)-cyclotron resonance depresses pineal melatonin synthesis in vitro
A Lerchl1, R J Reiter, K A Howes
1Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio 78284-7762.
Abstract:
The effects of ion cyclotron resonance (ICR)-type magnetic fields on pineal glands were investigated. Both the synthesis and the release of pineal melatonin, the gland's major hormone, were significantly (P less than 0.001 in each case) reduced by Ca(2+)-ICR-exposure, presumably caused by a reduced activity (P less than 0.05) of the enzyme N-acetyltransferase. It is concluded that this type of exposure may help to explain some of the effects of electromagnetic fields on biological systems. An extension to the existing ICR theory is presented which explains that ICR-like conditions may occur under various environmental circumstances.
Related Concept Videos
The Evidence for Evolution
The Pineal Gland
The primary secretion of the pineal gland is the hormone melatonin, derived from serotonin. The concentration of melatonin in the...
Long-term Depression
Long-term Depression
Calcium Ion Concentration Mechanism
If over...
Freezing Point Depression and Boiling Point Elevation
The boiling point of a liquid is the temperature at which its vapor pressure is equal to ambient atmospheric pressure. Since the vapor pressure of a solution is lowered due to the presence of nonvolatile solutes, it stands to reason that the solution’s boiling point will subsequently be increased. Vapor pressure increases with temperature, and so a solution will require a higher temperature than will pure solvent to achieve any given vapor pressure, including one...
Resonance

