Jr. Bolin Td",myokhin,soeaung,"genge et Vm. Duncombe, CORRELATION OF HYDROGEN AND METHANE PRODUCTION TO RICE CARBOHYDRATE MALABSORPTION IN BURMESE (MYANMAR) CHILDREN, Journal of pediatric gastroenterology and nutrition, 22(2), 1996, pp. 144-147
Rice carbohydrate malabsorption is common in Burmese village children
and adults and may contribute to diminished growth. Its diagnosis depe
nds on a rice breath hydrogen test, which has limitations. Almost 20%
of Burmese children under age 5 produce methane, compared with less th
an 7% of children in Africa and Hong Kong. If an increased carbohydrat
e load in the colon due to rice malabsorption provides increased subst
rate for methanogenic bacteria in the left colon, higher fasting breat
h methane concentrations might be a simpler method of diagnosing rice
malabsorption. We tested breath hydrogen and methane over a 4-h period
and did anthropometric measurements in 142 subjects, 79 children, and
63 adults. Seventy percent of children were rice-malabsorbers. Methan
e production occurred in 20% of children under 5 years of age and incr
eased to 60% of adults. There is an association of rice malabsorption
with reduced length. There was not correlation between rice malabsorpt
ion and breath methane, and the concentration of breath methane does n
ot, therefore, indicate rice absorption status and cannot replace rice
breath hydrogen tests.