Age-dependent variation of fecal calprotectin in cystic fibrosis and healthy children

J Cyst Fibros. 2017 Sep;16(5):631-636. doi: 10.1016/j.jcf.2017.03.010. Epub 2017 Apr 14.

Abstract

Background: Fecal calprotectin may be used as a non-invasive method to assess the effect of novel therapies on the gut in cystic fibrosis (CF).

Method: Stools from CF patients and healthy controls (HC) (0-10years old) were prospectively collected for evaluation of temporal trends.

Results: 130 CF samples (64 subjects) and 114 HC samples (101 subjects) were collected. Overall, fecal calprotectin levels were different in CF patients and HC from 0 to 10years (P=0.0002). Fecal calprotectin in CF was significantly lower than HC from 0 to 1years (P=0.03) and demonstrated an upward trajectory until 4years. From >4 to 10years calprotectin was consistently higher in CF patients compared with HC (P=0.007).

Conclusions: Fecal calprotectin levels in children with CF and HC were age-dependent and had distinct trajectories. Careful interpretation of calprotectin is required if used in drug trials for CF, particularly in children less than 4years old.

Keywords: Calprotectin; Cystic fibrosis; Gastrointestinal inflammation; Leukocyte L1 antigen complex; Pediatrics; S100 proteins.

MeSH terms

  • Age Factors
  • Biomarkers / analysis
  • Child
  • Child, Preschool
  • Cystic Fibrosis* / diagnosis
  • Cystic Fibrosis* / physiopathology
  • Feces*
  • Female
  • Humans
  • Infant
  • Infant, Newborn
  • Inflammation* / diagnosis
  • Inflammation* / etiology
  • Inflammation* / physiopathology
  • Intestinal Mucosa* / metabolism
  • Intestines* / physiopathology
  • Leukocyte L1 Antigen Complex / analysis*
  • Male
  • Reproducibility of Results

Substances

  • Biomarkers
  • Leukocyte L1 Antigen Complex