title: Can we predict urinary stone composition based on an analysis of microelement concentration in the hair and urine?
abstract: BACKGROUND
  In recent years the role of trace elements in lithogenesis has received steadily increasing attention.
  
  
  OBJECTIVE
  This study was aimed to attempt to find the correlations between the chemical content of the stones and the concentration of chosen elements in the urine and hair of stone formers.
  
  
  METHODS
  The proposal for the study was approved by the local ethics committee. Specimens were taken from 219 consecutive stone-formers. The content of the stone was evaluated using atomic absorption spectrometry, spectrophotometry, and colorimetric methods. An analysis of 29 elements in hair and 21 elements in urine was performed using inductively coupled plasma-atomic emission spectrometry.
  
  
  RESULTS
  Only a few correlations between the composition of stones and the distribution of elements in urine and in hair were found. All were considered incidental.
  
  
  CONCLUSIONS
  The data obtained did not allow for the creation of a proper and practical algorithm to predict stone chemical composition based on hair and urine analysis.
authors.affiliation: Department of Urology and Urological Oncology, Pomeranian Medical University, Szczecin, Poland. mslojewski@csv.pl
authors.forename: Marcin
authors.initials: M
authors.lastname: Słojewski
authors.forename: Krzysztof
authors.initials: K
authors.lastname: Safranow
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Jakubowska
authors.forename: Maria
authors.initials: M
authors.lastname: Olszewska
authors.forename: Andrzej
authors.initials: A
authors.lastname: Pawlik
authors.forename: Zygmunt
authors.initials: Z
authors.lastname: Juzyszyn
authors.forename: Marek
authors.initials: M
authors.lastname: Droździk
authors.forename: Dariusz
authors.initials: D
authors.lastname: Chlubek
authors.forename: Peter
authors.initials: P
authors.lastname: Hammerer
authors.forename: Andrzej
authors.initials: A
authors.lastname: Sikorski
mesh_terms: D000328:Adult; D006197:Hair / Q000737:chemistry*; D006801:Humans; D008875:Middle Aged; D013053:Spectrophotometry / Q000379:methods; D014131:Trace Elements / Q000032:analysis*; D014545:Urinary Calculi / Q000737:chemistry*; D014556:Urine / Q000737:chemistry*
chemical_list: D014131:Trace Elements