EMF Evidence Library
Research library/Reproductive health/RF-008
RF-008Original text reviewed

Cell-stage differences plus transient mature-sperm DNA damage and motility loss

Houston et al. · 2018 · frontiers in public health

The reported finding

At0.15 W/kg, mitochondrial ROS rose in GC1/GC2 cells and primary spermatogonia. Mature sperm did not show elevated real-time ROS, but alkaline comet fragmentation increased approximately 20% at 3 h (P<.05; no longer significant 4 h),8-OHdG increased 4 h, and total motility fell from 46% to 35% at 4 h (P<.05). Halo assay was negative.

Reading it carefully

Cell-stage/assay/time dependence is material: no significant exposure-induced germ-cell-line DNA fragmentation, no exposure-related mature-sperm real-time ROS/lipid peroxidation or vitality effect; comet signal transient and halo negative. Small n and nonphysiological culture; no clinical fertility endpoint or human-limit compliance inference.

Inside the study

Exposure conditions
Continuous-wave 1.8 GHz; main protocol 0.15 W/kg, with 1.5 W/kg supplementary comparison. Germ cells up to 6 h; mature sperm up to 4 h; culture maintained at 23°C. Thermal-probe/numerical SAR calibration.
Design & controls
Cell lines and primary spermatogonia versus somatic cells; mature caudal sperm from three mice per assay, at least three independent replicates. Electron-transport inhibitors and complementary ROS/DNA/function assays.
Related research & shared cohorts
Newcastle programme with RF-006/007; distinct experiments but one research network.
The protection question raised
Which reproductive-cell stages and exposure durations are vulnerable, and do the measured changes persist? Differences between assays and time points matter; this related laboratory programme does not establish a human fertility effect.
Source verification
Full original methods/results, Figures 1-8, supplements and disclosures rechecked through PMC XML.
Where to find the result
Results/Figure 1; mature-sperm Results and Figures 5-8; SupplementalFigure 1; Funding.
Editorial notices
Primary PubMed linked-notice record checked 20 Oct 2026; no correction, concern or retraction linked at check. This is not an exhaustive publisher-history certification.
Funding
Australian Research Council Discovery Project DP110103951 to R.J.Aitken and B.V.King; B.Houston Australian Postgraduate Award PhD scholarship.
Conflicts of interest
Authors declare no commercial/financial relationships construed as conflicts.

Reviews to read alongside

Related syntheses and proposals in the separate review collection. These are topical reading links, not additional independent experiments.

Original publication

Houston BJ, Nixon B, King BV, Aitken RJ, De Iuliis GN. Probing the Origins of 1,800 MHz Radio Frequency Electromagnetic Radiation Induced Damage in Mouse Immortalized Germ Cells and Spermatozoa in vitro. Frontiers in Public Health. 2018;6:270. doi:10.3389/fpubh.2018.00270.

Plain-text record