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Filters: tag: melatonin Clear

The S4–Mitochondria–Cryptochrome Framework: A Unified Theory of Non-Thermal RF/ELF Biological Effects

Independent Voices RF Safe Nov 24, 2025

RF Safe presents an advocacy-style article proposing a “S4–mitochondria–cryptochrome” framework to explain alleged non-thermal biological effects from RF and ELF exposure. It argues that EMF-related “noise” could disrupt voltage-gated ion channel signaling, amplify oxidative stress via mitochondria, and affect…

Electromagnetic Fields as a Weak Magnetic Co‑Zeitgeber for the Body Clock

Independent Voices RF Safe Nov 24, 2025

This RF Safe article argues that everyday electromagnetic fields (EMFs) could act as a weak “magnetic co‑zeitgeber,” subtly influencing circadian timing alongside light. It proposes a mechanism in which EMFs modulate cryptochrome radical‑pair spin dynamics, potentially nudging circadian phase and downstream processes…

Melatonin ameliorates RF-EMR-induced reproductive damage by inhibiting ferroptosis through Nrf2 pathway activation

Research RF Safe Research Library Jan 1, 2025

This animal study reports that prolonged RF-EMR exposure (2.45 GHz for 8 weeks) increased oxidative stress and ferroptosis in mouse testicular tissue and was associated with reduced sperm quality. Melatonin administration reportedly mitigated oxidative injury and inhibited ferroptosis. The abstract attributes the…

Melatonin and omega-3 neuroprotection in prenatal rat spinal cord exposed to 900 MHz electromagnetic field.

Research RF Safe Research Library Jan 1, 2025

This animal study examined prenatal 900 MHz EMF exposure (2 hours/day for 21 days) in pregnant rats and assessed spinal cord outcomes in male offspring at postnatal day 35. Volume-based stereological measures (GM/WM ratios and total spinal cord volume) did not differ significantly between groups. Microscopy reported…

Possible effects of melatonin and omega-3 on the obesity-related hypothalamic nuclei of the electromagnetic field-exposed offspring rats: a stereological and immunohistochemical analysis.

Research RF Safe Research Library Jan 1, 2025

This animal study examined whether prenatal exposure to a 900 MHz electromagnetic field affects obesity-related hypothalamic nuclei in male rat offspring and whether melatonin or omega-3 modifies these effects. The EMF-exposed group showed fewer neurons in the arcuate nucleus, stronger NPY immunoreactivity, and…

Protective effects of melatonin and omega-3 on the hippocampus and the cerebellum of adult Wistar albino rats exposed to electromagnetic fields.

Research RF Safe Research Library Jan 1, 2017

This rat study examined 900 MHz EMF exposure for 60 minutes per day over 15 days and assessed hippocampal and cerebellar outcomes, behavior, and serum enzyme activity. The EMF-only group showed significant neuronal cell losses in multiple brain regions and worse passive avoidance performance compared with other…

Effect of electromagnetic fields and antioxidants on the trace element content of rat teeth.

Research RF Safe Research Library Jan 1, 2017

This animal study examined whether extremely low-frequency electromagnetic fields (ELF-EMFs) from a high-voltage source alter trace element concentrations in rat teeth and whether antioxidants (melatonin and glutathione) modify these changes. Rats were exposed 8 hours/day for 26 or 52 days, with separate sham…

Effect of exposure to extremely low frequency magnetic fields on melatonin levels in calves is seasonally dependent

Research RF Safe Research Library Sep 18, 2015

This animal study measured salivary melatonin in 1–2 month old calves exposed to 50 Hz extremely low frequency magnetic fields in the hundreds of nT range. The authors report a season-dependent response: melatonin decreased with exposure in winter but increased in summer. They suggest future studies should consider…

Melatonin protects rat cerebellar granule cells against electromagnetic field-induced increases in Na(+) currents through intracellular Ca(2+) release

Research RF Safe Research Library Jan 1, 2014

This in vitro study examined extremely low-frequency electromagnetic field (ELF-EMF) effects on voltage-gated sodium (Nav) currents in rat cerebellar granule cells and whether melatonin modifies these effects. The abstract reports that 60 minutes of ELF-EMF exposure increased Nav current density, and that melatonin…

Critical time delay of the pineal melatonin rhythm in humans due to weak electromagnetic exposure.

Research RF Safe Research Library Jan 1, 2013

This paper discusses a mechanism by which weak electromagnetic exposure could perturb radical pair recombination rates, potentially increasing radical lifetimes. It reports significant melatonin interruption and circadian rhythm changes due to perturbation of chemical reaction rates, and notes that mRNA degradation…

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