# RF-008 — Cell-stage differences plus transient mature-sperm DNA damage and motility loss

Why this matters
Sperm at different stages did not respond alike. In mature mouse sperm, one DNA test changed temporarily and movement declined, while another DNA test was negative. For health protection, the important question is which responses persist and affect reproduction under realistic conditions, rather than whether any laboratory marker changes.

Id: RF-008

Author: Houston et al.

Full Authors: Brendan J. Houston; Brett Nixon; Bruce V. King; R. John Aitken; Geoffry N. De Iuliis

Year: 2018

Title: Probing the Origins of 1,800 MHz Radio Frequency Electromagnetic Radiation Induced Damage in Mouse Immortalized Germ Cells and Spermatozoa in vitro

Journal: frontiers in public health

Citation: 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.

Doi: 10.3389/fpubh.2018.00270

Pmid: 30298125

Topic: Reproduction

Verification Group: Original text reviewed

Record Role: Original text reviewed

Featured: True

Exposure: 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: 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.

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.

Boundary: 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.

Related: Newcastle programme with RF-006/007; distinct experiments but one research network.

Protection Question: 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.

Access: Full original methods/results, Figures 1-8, supplements and disclosures rechecked through PMC XML.

Locator: Results/Figure 1; mature-sperm Results and Figures 5-8; SupplementalFigure 1; Funding.

Notice: 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: Authors declare no commercial/financial relationships construed as conflicts.

Source Url: https://doi.org/10.3389/fpubh.2018.00270

Retrieval Links: https://doi.org/10.3389/fpubh.2018.00270 | https://pmc.ncbi.nlm.nih.gov/articles/PMC6160547/ | https://pubmed.ncbi.nlm.nih.gov/30298125/

Verification Date: 2026-10-20