Rationale: Criteria for preparation of the oral cavity is not a standard inclusion in current guidelines hydrogen-methane breath testing. The aim this study was to determine how pre-test mouthwash may impact test Results upon which diagnosis and treatment recommendations are based.

BACKGROUND Levels of breath methane, together with breath hydrogen, are determined by means of repeated collections of both, following ingestion of a carbohydrate substrate, at 15-20 minutes intervals, until 10 samples have been obtained. The frequent sampling is required to capture a rise of hydrogen emissions, which typically occur later in the test: in contrast, methane levels are typically ...

OBJECTIVE To examine the correlation of lactase persistence phenotype with genotype in Omani adults. METHODS Lactase persistence phenotype was tested by hydrogen breath test in 52 Omani Adults using the Micro H2 analyzer. Results were checked against genotyping using direct DNA sequencing. RESULTS Forty one individuals with C/C-13910 and T/T-13915 genotypes had positive breath tests (≥20 pp...

30. Chantret I, Lacasa M, Chevalier G, et al. Sequence of the complete cDNA and the 50 structure of the human sucrase-isomaltase gene. Possible homology with a yeast glucoamylase. Biochem J 1992; 285:915–23. 31. Nichols BL, Eldering J, Avery S, et al. Human small intestinal maltaseglucoamylase cDNA cloning. Homology to sucrase-isomaltase. J Biol Chem 1998;273:3076–81. 32. Nichols BL, Avery S, S...

Abstract Background Pancreatic exocrine insufficiency (PEI) is associated with the outcome of pancreatic disease. However, there no method for assessing PEI that can be used noninvasively and easily outpatient. It has been reported changes in intestinal bacteria caused by may increase breath hydrogen concentration (BHC) levels during glucose or lactose loading. We have evaluated usefulness fast...