RF-018Original text reviewed
Rat sperm motility and oxidative markers
The reported finding
Motile sperm 43.08±10.03% exposed versus 71.97±8.7% control,P<.002. Testis/epididymis MDA increased and GSH decreased. Total sperm count was not significantly different,P=.052.
Reading it carefully
Small groups; rooms confounded with treatment; facial thermometry does not exclude organ heating; no dose assessment or mating/fertility outcome.
Inside the study
Exposure conditions
Dual-band 0.9/1.8 GHz commercial handset; no animal SAR or incident field reported. Pre/post facial temperatures were not significantly different.
Design & controls
Male Wistar rats,n=6/group. Active GSM phone or battery-free phone 1 h/day for 28 days inside a wooden-bottom nested cage; separate similar exposure rooms; freely moving animals.
The protection question raised
Does this separate laboratory sperm finding persist when exposure-room and thermal uncertainties are resolved? The missing absorbed dose prevents a quantitative comparison with human protection.
Source verification
Original PMC XML full methods/results reviewed; upgraded from record only.
Where to find the result
Animals; Mobile Phone Exposure; Results; Figures 1-2.
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
No specific funding statement located; technical assistance acknowledged from Clinical Embryology,Kasturba Medical College.
Conflicts of interest
No declaration located in retrieved original; absence of conflicts not inferred.
Original publication
Mailankot M,Kunnath AP,Jayalekshmi H,Koduru B,Valsalan R. Radio Frequency Electromagnetic Radiation (RF-EMR) from GSM(0.9/1.8GHZ) Mobile Phones Induces Oxidative Stress and Reduces Sperm Motility in Rats. Clinics.2009;64(6):561-565. DOI10.1590/S1807-59322009000600011.