Antral inflammatory cells, gastric emptying, and electrogastrography in pediatric functional dyspepsia.
The aims of the current study were to determine the activation states of antral eosinophils and mast cells and to evaluate the interactions of antral inflammatory cells with gastric emptying and electrogastrography (EGG) in 30 pediatric patients with functional dyspepsia. Eosinophil degranulation was moderate in 42% and extensive in 54% of patients. Mast cell degranulation was > 50% in 81% of patients. Elevated mast cell density was associated with slower one hour gastric emptying and increased preprandial dysrhythmia. Mast cell density correlated with the preprandial percentage tachygastria. CD3+ cell density correlated with the preprandial percentage tachygastria also, but only in patients with increased eosinophil density. In conclusion, antral eosinophils and mast cells are significantly activated in pediatric functional dyspepsia. Mast cell density is associated with delayed gastric emptying and preprandial dysrhythmia, suggesting that there may be an interaction between antral inflammation and gastric electromechanical dysfunction in the pathophysiology of pediatric functional dyspepsia.
Friesen
Craig A
CA
Section of Gastroenterology, The Children's Mercy Hospital and Clinics, 2401 Gillham Road, Kansas City, MO 64108, USA. cfriesen@cmh.edu
Lin
Zhiyue
Z
Singh
Meenal
M
Singh
Vivekanand
V
Schurman
Jennifer V
JV
Burchell
Nanci
N
Cocjin
Jose T
JT
McCallum
Richard W
RW
D000293:Adolescent; D002648:Child; D004415:Dyspepsia / Q000473:pathology* / Q000503:physiopathology*; D004594:Electrophysiology / Q000379:methods*; D004804:Eosinophils / Q000473:pathology / Q000502:physiology; D005260:Female; D005746:Gastric Emptying / Q000502:physiology*; D006801:Humans; D007249:Inflammation / Q000473:pathology / Q000503:physiopathology; D008297:Male; D008407:Mast Cells / Q000473:pathology / Q000502:physiology; D040542:Mechanotransduction, Cellular / Q000502:physiology; D011706:Pyloric Antrum / Q000473:pathology*