When humans became more dependent on carbohydrates, the diversity in our oral microbiome suffered. Farming brought significant dietary changes to human societies worldwide, causing microbial populations in human mouths to change dramatically. By studying fossilized bacteria in plaque from ancient teeth, scientists link carbohydrates and highly processed foods to the rise of two species of harmful oral bacteria that increase our susceptibility to cavities and gum disease.
Science Bulletins is a production of the National Center for Science Literacy, Education, and Technology (NCSLET), part of the Department of Education at the American Museum of Natural History.
RELATED LINKS
Nature Genetics: Sequencing ancient calcified dental plaque shows changes in oral microbiota with dietary shifts of the Neolithic and Industrial revolutions
http://www.nature.com/ng/journal/v45/...
Australian Center for Ancient DNA
http://www.adelaide.edu.au/acad/
The Wellcome Trust Sanger Institute
http://www.sanger.ac.uk/research/
Science: How Sweet It Is—Genes Show How Bacteria Colonized Human Teeth
http://www.sciencemag.org/content/339...
bacterial transformation Science Bulletins: Diet Changes In Our Past Helped Harmful Microbes To Thrive | |
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