title: Overexpression of ubiquitin carboxyl-terminal hydrolase L1 (UCHL1) in serum of children after thermal injury.
abstract: OBJECTIVE
  The study aims to determinate concentrations of ubiquitin C-terminal hydrolase 1 (UCHL1), which hydrolyzes amino acids from ubiquitin and cleave di-ubiquitins, in serum of children after thermal injury.
  
  
  METHODS
  42 children scalded by hot water, managed at the Department of Pediatric Surgery, with burns in 4-20% TBSA were included into the study (age 9 months up to 14 years, mean age 2.5±1 years). Blood plasma UCHL1 concentration was assessed in 2-6h, 12-16h, 3d, 5d, and 7d after injury using surface plasmon resonance imaging biosensor. 18 healthy subjects admitted for planned surgeries served as controls.
  
  
  RESULTS
  The UCHL1 concentration in the blood plasma of patients with thermal injuries reached its peak 12-16h after thermal injury and slowly decreased over time, and still did not reach the normal range on the 7th day after thermal injury. Mean concentrations of UCHL1 after thermal injury were above the range measured in controls (0.12ng/ml): 2-6h after injury - 5.59ng/dl, 12-16h after injury - 9.16ng/dl, 3 days after injury - 6.94ng/dl, 5 days after 5.41ng/dl, 7 days after injury - 4.09ng/dl.
  
  
  CONCLUSIONS
  We observed sudden increase in the concentration of UCHL1 2-16h after thermal injury with the slow decrease in the UCHL1 concentration over the time. UCHL1 concentration was proportional to the severity of the burn. Further studies are needed to determine the mechanisms by which UCHL1 contributes to metabolic response following thermal injury.
authors.affiliation: Department of Pediatric Surgery, Medical University of Bialystok, Bialystok, Poland. Electronic address: ewamat@tlen.pl.
authors.forename: Ewa
authors.initials: E
authors.lastname: Matuszczak
authors.affiliation: Department of Biophysics, Medical University of Bialystok, Bialystok, Poland.
authors.forename: Marzena
authors.initials: M
authors.lastname: Tylicka
authors.affiliation: Department of Pediatric Surgery, Medical University of Bialystok, Bialystok, Poland.
authors.forename: Wojciech
authors.initials: W
authors.lastname: Dębek
authors.affiliation: Department of Electrochemistry, Institute of Chemistry, University of Bialystok, Bialystok, Poland.
authors.forename: Anna
authors.initials: A
authors.lastname: Sankiewicz
authors.affiliation: Department of Electrochemistry, Institute of Chemistry, University of Bialystok, Bialystok, Poland.
authors.forename: Ewa
authors.initials: E
authors.lastname: Gorodkiewicz
authors.affiliation: Department of Pediatric Surgery, Medical University of Bialystok, Bialystok, Poland.
authors.forename: Adam
authors.initials: A
authors.lastname: Hermanowicz
mesh_terms: D000293:Adolescent; D015415:Biomarkers / Q000097:blood*; D002056:Burns / Q000097:blood* / Q000201:enzymology / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011379:Prognosis; D043222:Ubiquitin Thiolesterase / Q000097:blood*
chemical_list: D015415:Biomarkers; C482860:UCHL1 protein, human; D043222:Ubiquitin Thiolesterase
keywords: Burns; Children; Thermal injury; UCHL1; Ubiquitin