Breath hydrogen and methane in populations at different risk for colon cancer.
Results from laboratory and clinical studies have suggested that fermentation in the large bowel may play a protective role against colon cancer.
Hydrogen and methane are end-products of colonic fermentation that are absorbed into the bloodstream and excreted via expired air in the breath.
Thus, breath levels of hydrogen and methane have been used as markers for this process.
Breath levels of these gases were compared among 10 ethnic and sex groups that exhibit marked differences for colon cancer risk in Hawaii.
Four end-expiratory breath samples were used to characterize daily excretion of hydrogen and methane in a population-based sample of 244 men and women.
There was no significant difference in breath hydrogen or methane by sex or age.
Mots-clés Pascal : Tumeur maligne, Côlon, Facteur risque, Fermentation, Hydrogène, Méthane, Expiration, Hawaï, Polynésie, Océanie, Ethnie, Epidémiologie, Homme, Côlon pathologie, Intestin pathologie, Appareil digestif pathologie, Etude cas témoin
Mots-clés Pascal anglais : Malignant tumor, Colon, Risk factor, Fermentation, Hydrogen, Methane, Expiration, Hawaii, Polynesia, Oceania, Ethnic group, Epidemiology, Human, Colonic disease, Intestinal disease, Digestive diseases, Case control study
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 94-0132667
Code Inist : 002B13B01. Création : 199406.