title: Is the effect of mobile phone radiofrequency waves on human skin perfusion non-thermal?
abstract: OBJECTIVE
  To establish whether SkBF can be modified by exposure to the radiofrequency waves emitted by a mobile phone when the latter is held against the jaw and ear.
  
  
  METHODS
  Variations in SkBF and Tsk in adult volunteers were simultaneously recorded with a thermostatic laser Doppler system during a 20-minute "radiofrequency" exposure session and a 20-minute "sham" session. The skin microvessels' vasodilatory reserve was assessed with a heat challenge at the end of the protocol.
  
  
  RESULTS
  During the radiofrequency exposure session, SkBF increased (vs. baseline) more than during the sham exposure session. The sessions did not differ significant in terms of the Tsk time-course response. The skin microvessels' vasodilatory ability was found to be greater during radiofrequency exposure than during sham exposure.
  
  
  CONCLUSIONS
  Our results reveal the existence of a specific vasodilatory effect of mobile phone radiofrequency emission on skin perfusion.
authors.affiliation: PériTox Laboratory (EA 4285-UMI01), Faculty of Medicine, Jules Verne University of Picardy, Amiens, France.
authors.forename: Nathalie
authors.initials: N
authors.lastname: Loos
authors.forename: György
authors.initials: G
authors.lastname: Thuróczy
authors.forename: Rania
authors.initials: R
authors.lastname: Ghosn
authors.forename: Valérie
authors.initials: V
authors.lastname: Brenet-Dufour
authors.forename: Sophie
authors.initials: S
authors.lastname: Liabeuf
authors.forename: Brahim
authors.initials: B
authors.lastname: Selmaoui
authors.forename: Jean-Pierre
authors.initials: JP
authors.lastname: Libert
authors.forename: Véronique
authors.initials: V
authors.lastname: Bach
authors.forename: Momar
authors.initials: M
authors.lastname: Diouf
authors.forename: René
authors.initials: R
authors.lastname: de Seze
mesh_terms: D000328:Adult; D040421:Cell Phone; D004423:Ear / Q000098:blood supply; D005260:Female; D006801:Humans; D007568:Jaw / Q000098:blood supply; D008297:Male; D008833:Microcirculation / Q000528:radiation effects*; D011846:Radio Waves; D012867:Skin / Q000098:blood supply*; D013997:Time Factors; D014664:Vasodilation / Q000528:radiation effects*
keywords: SkBF; Tsk; radiofrequency exposure; skin microcirculation; thermostatic laser Doppler flowmetry