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  • Title: Age-dependent variation of fecal calprotectin in cystic fibrosis and healthy children.
    Author: Garg M, Leach ST, Coffey MJ, Katz T, Strachan R, Pang T, Needham B, Lui K, Ali F, Day AS, Appleton L, Moeeni V, Jaffe A, Ooi CY.
    Journal: J Cyst Fibros; 2017 Sep; 16(5):631-636. PubMed ID: 28416415.
    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.
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