Abstract:
:Intestinal damage in malnutrition constitutes a threat to the survival of many thousands of children globally. We studied children in Lusaka, Zambia, with severe acute malnutrition (SAM) and persistent diarrhea using endoscopy, biopsy and analysis of markers and protective proteins in blood and intestinal secretions. We carried out parallel investigations in apparently healthy adults, and analyzed biomarkers only in apparently healthy children. Villus height and crypt depth did not differ in children with SAM and adult controls, but epithelial surface was reduced in children with SAM (median 445, interquartile range (IQR) 388, 562μm per 100μm muscularis mucosae) compared to adults (578, IQR 465,709; P=0.004). Histological lesions and disruptions of claudin-4 and E-cadherin were most pronounced in children with SAM. Circulating lipopolysaccharide, a marker of bacterial translocation, was higher in malnourished children (251, IQR 110,460EU/ml) than in healthy children (51, IQR 0,111; P=0.0001). Other translocation markers showed similar patterns. Anti-Deamidated Gliadin Peptide IgG concentrations, although within the normal range, were higher in children with SAM (median 2.7U/ml, IQR 1.5-8.6) than in adults (1.6, 1.4-2.1; P=0.005), and were inversely correlated with villus height (ρ=-0.79, n=13, P=0.001). Malnutrition enteropathy is associated with intestinal barrier failure and immune dysregulation.
journal_name
EBioMedicinejournal_title
EBioMedicineauthors
Amadi B,Besa E,Zyambo K,Kaonga P,Louis-Auguste J,Chandwe K,Tarr PI,Denno DM,Nataro JP,Faubion W,Sailer A,Yeruva S,Brantner T,Murray J,Prendergast AJ,Turner JR,Kelly Pdoi
10.1016/j.ebiom.2017.07.017subject
Has Abstractpub_date
2017-08-01 00:00:00pages
191-199issn
2352-3964pii
S2352-3964(17)30290-6journal_volume
22pub_type
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