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Related Experiment Videos

'Normal' disaccharidase levels in children.

G L Barnes1, R P Ford, S Dawson

  • 1Department of Gastroenterology, Royal Children's Hospital, Parkville, Victoria, Australia.

Australian Paediatric Journal
|February 1, 1988
PubMed
Summary
This summary is machine-generated.

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This study establishes normal disaccharidase values in children by analyzing small bowel biopsies. These findings provide a crucial reference for diagnosing pediatric gastrointestinal disorders.

Area of Science:

  • Pediatric Gastroenterology
  • Clinical Biochemistry
  • Digestive Physiology

Background:

  • Accurate reference values for disaccharidase activity are essential for diagnosing pediatric malabsorption disorders.
  • Previous studies may lack sufficient sample size or ethical considerations for establishing truly normal pediatric values.
  • Understanding normal enzyme levels aids in differentiating between congenital and acquired disaccharidase deficiencies.

Purpose of the Study:

  • To establish reliable normal ranges for disaccharidase (maltase, sucrase, lactase) activity in pediatric small bowel biopsies.
  • To provide a normative dataset for comparison in clinical diagnostic settings.
  • To ethically obtain and analyze data representing near-normal physiological conditions in children.

Main Methods:

Related Experiment Videos

  • Analysis of disaccharidase assay results from 887 pediatric small bowel biopsies collected over three years.
  • Exclusion of cases with abnormal histology, giardia trophozoites, or complete absence of sucrase/isomaltase (307 cases).
  • Graphical representation of maltase, sucrase, and lactase results as percentiles across different age groups for the remaining 580 children.

Main Results:

  • Established percentile-based normal values for maltase, sucrase, and lactase activity in pediatric small bowel biopsies.
  • The dataset represents ethically obtained results, closely approximating normal physiological values.
  • Age-specific graphs illustrate the distribution of enzyme activities, providing a valuable reference tool.

Conclusions:

  • The study successfully generated a comprehensive dataset of normal disaccharidase values for children.
  • These findings serve as a critical benchmark for the accurate diagnosis of disaccharidase deficiencies in pediatric populations.
  • The established normal values will aid clinicians in interpreting biopsy results and managing pediatric gastrointestinal conditions.