Substance P in rectal mucosa of children with chronic constipation

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E Granot1, D Wengrower, J Lysy

  • 1Department of Pediatrics, Hadassah University Hospital, Hebrew University-Hadassah Medical School, Jerusalem, Israel.

Acta Gastroenterologica Latinoamericana
|May 24, 2001
PubMed

Insights

Substance P levels in the rectal mucosa of children with chronic idiopathic constipation were lower than in healthy children. These findings suggest a potential role for motility issues in childhood constipation.

Area of Science:

  • Pediatric Gastroenterology
  • Neurogastroenterology
  • Pharmacology

Background:

  • Idiopathic constipation is a common pediatric issue.
  • Substance P is a neuropeptide involved in gastrointestinal motility.
  • Altered neuropeptide levels may contribute to constipation pathogenesis.

Purpose of the Study:

  • To investigate Substance P levels in rectal mucosa of children with idiopathic constipation.
  • To compare these levels with healthy controls and explore correlations with clinical factors.

Main Methods:

  • Radioimmunoassay was used to quantify Substance P in rectal mucosa biopsies.
  • 17 children with chronic idiopathic constipation and 9 healthy children were studied.
  • Data were analyzed for differences and correlations with age and symptom duration.

Main Results:

  • Rectal mucosa Substance P levels were lower in constipated children compared to controls, though not statistically significant.
  • Substance P levels did not differ between constipated children with and without soiling.
  • Levels in constipated children were intermediate between healthy adults and adults with chronic constipation.

Conclusions:

  • Findings suggest a possible motility derangement in childhood idiopathic constipation.
  • Further research is needed to elucidate the role of Substance P in pediatric constipation.
  • Substance P levels may serve as a potential biomarker for gastrointestinal motility disorders in children.

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