title: Influencing factors for saliva urea and its application in chronic kidney disease.
abstract: OBJECTIVE
  To analyze possible influencing factors on concentration of saliva urea (SaU) and to validate its application in chronic kidney disease(CKD).
  
  
  METHODS
  Level of SaU in patients and normal subjects was researched.
  
  
  RESULTS
  The concentration of SaU did not vary with sampling time and genders, but was related to ages and level of serum urea (U).
  
  
  CONCLUSIONS
  SaU concentration is stable and it is useful in application in CKD.
authors.affiliation: Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, 410011, PR China.
authors.forename: Can-hui
authors.initials: CH
authors.lastname: Peng
authors.forename: Yun-cheng
authors.initials: YC
authors.lastname: Xia
authors.forename: Yong
authors.initials: Y
authors.lastname: Wu
authors.forename: Zhi-fang
authors.initials: ZF
authors.lastname: Zhou
authors.forename: Ping
authors.initials: P
authors.lastname: Cheng
authors.forename: Ping
authors.initials: P
authors.lastname: Xiao
mesh_terms: D000328:Adult; D000368:Aged; D016022:Case-Control Studies; D003404:Creatinine / Q000032:analysis; D005260:Female; D005921:Glomerulonephritis / Q000473:pathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D051436:Renal Insufficiency, Chronic / Q000175:diagnosis* / Q000473:pathology; D015203:Reproducibility of Results; D012463:Saliva / Q000737:chemistry*; D012680:Sensitivity and Specificity; D018709:Statistics, Nonparametric; D014508:Urea / Q000032:analysis*; D055815:Young Adult
chemical_list: D014508:Urea; D003404:Creatinine