title: Is human methane production affected by long-term occupational exposure to a methanogenic flora?
abstract: The factors determining human methane production or nonproduction are unknown. Exposure at a young age to a methanogenic flora is thought to be of significance. We examined whether long-term occupational exposure to methanogenic flora in adult life affects methane production. Among 38 subjects who worked in a cowshed for a mean period of 14 +/- 15 years, the proportion of methane producers was identical to that found in well-matched controls. The length of work in the cowshed had no effect on methane production.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000822:Animal Husbandry; D000818:Animals; D001419:Bacteria / Q000378:metabolism*; D001944:Breath Tests; D002417:Cattle / Q000382:microbiology; D004781:Environmental Exposure; D005260:Female; D006801:Humans; D007422:Intestines / Q000382:microbiology*; D008297:Male; D008697:Methane / Q000096:biosynthesis*; D008875:Middle Aged
chemical_list: D008697:Methane