Although often used as a reference standard in the breath hydrogen test(BHT), lactulose fermentation produces more hydrogen, compared to starch, and may there fore not be ideal. This study compares inulin with lactulo...
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Although often used as a reference standard in the breath hydrogen test(BHT), lactulose fermentation produces more hydrogen, compared to starch, and may there fore not be ideal. This study compares inulin with lactulose as reference standa rd in the study of carbohydrate malabsorption. Seventeen patients with malabsorp tion due to chronic pancreatitis and 15 normal controls were studied. Following overnight fasts, BHTs were performed after ingesting 10 g lactulose, 10 g inulin , and 200 g(16 g highly resistant starch) maize meal. Lactulose fermentation pro duced significantly more hydrogen than inulin in patients with malabsorption (97 ±20 vs 45±22 ppm·hr; P cho malabsorpti on was 2.5 ±0.8 vs 5.2 ±3.8 g with lactulose and 5.2 ±3.1 vs 11.2 ±9.6 g wit h inulin as standards in controls and patients, respectively (P cho malabsorption u sing these standards is therefore not comparable.
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