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Using Multi-fluorinated Bile Acids and In Vivo Magnetic Resonance Imaging to Measure Bile Acid Transport

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Fructose, trehalose and sorbitol malabsorption.

M Montalto¹, A Gallo, V Ojetti

¹Institute of Internal Medicine, School of Medicine, Catholic University of the Sacred Heart, Rome, Italy. mmontalto@rm.unicatt.it.

European Review for Medical and Pharmacological Sciences

|January 21, 2014

Summary

This summary is machine-generated.

Carbohydrate malabsorption, including fructose, trehalose, and sorbitol, presents diagnostic challenges. Small intestinal bacterial overgrowth is a crucial consideration for patients with unexplained abdominal discomfort.

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Area of Science:

Gastroenterology
Digestive Health
Clinical Nutrition

Background:

Carbohydrate malabsorption is a common cause of abdominal symptoms.
While lactose is the most frequent culprit, fructose, trehalose, and sorbitol malabsorption also occur.
Functional bowel disorders are often linked to fructose malabsorption, though evidence is limited.

Purpose of the Study:

To evaluate the clinical relevance of fructose, trehalose, and sorbitol malabsorption.
To assess the diagnostic accuracy of common tests for these conditions.
To highlight alternative diagnoses for carbohydrate-related abdominal discomfort.

Main Methods:

Review of existing studies on fructose, trehalose, and sorbitol malabsorption.
Analysis of the limitations and diagnostic challenges of breath hydrogen testing.
Consideration of small intestinal bacterial overgrowth as a differential diagnosis.

Main Results:

Limited data exists to confirm the clinical significance of fructose, trehalose, and sorbitol malabsorption.
Diagnostic accuracy of current tests for these malabsorption types is uncertain.
Breath hydrogen testing interpretation is complex due to lack of standardized protocols and gold standards.

Conclusions:

Definitive conclusions on the clinical relevance and diagnostic accuracy of fructose, trehalose, and sorbitol malabsorption cannot be drawn.
Small intestinal bacterial overgrowth should be considered in patients with unexplained abdominal symptoms after carbohydrate ingestion.
Bacterial fermentation can mimic sugar malabsorption, leading to misdiagnosis.