title: Effects of phototherapy on cytokines' levels and white blood cells in term neonate with hyperbilirubinemia.
abstract: OBJECTIVE
  Phototherapy is the most common treatment used for severe jaundice. There is increasing evidence that phototherapy can directly affect the expression and function of cell surface receptors including adhesion molecules, cytokines, and growth factor receptors. The aim of this study is to investigate the effect of phototherapy use on the levels of interleukin (IL)-1α, IL-6, and tumor necrosis factor (TNF)-α as cytokine expressions from keratinocytes, and also white blood cell counts in the treatment of neonate with hyperbilirubinemia.
  
  
  METHODS
  We studied 32 term newborns with hyperbilirubinemia. Blood samples were obtained before and 72 h after phototherapy. Serum levels of IL-1α, IL-6, TNF-α, and WBC count were measured in the samples using appropriate methods.
  
  
  RESULTS
  Serum TNF-α at 72 h of exposure to phototherapy increased, while the levels of IL-1α and IL-6 at the same time were decreased. These changes were not statistically significant. WBC counts rose significantly with phototherapy.
  
  
  CONCLUSIONS
  Phototherapy in term neonate does not affect cytokines' levels, but can raise peripheral WBC count.
authors.affiliation: Department of Neonatology, Pediatrician and Neonatologist, Imam Reza Hospital, The Social Insurance, Urmia, West Azarbayejan, Iran.
authors.forename: Sedigheh
authors.initials: S
authors.lastname: Jahanshahifard
authors.forename: Mousa
authors.initials: M
authors.lastname: Ahmadpour-Kacho
authors.forename: Yadollah Zahed
authors.initials: YZ
authors.lastname: Pasha
keywords: Cytokine; hyperbilirubinemia; phototherapy; term neonate
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