A University of Oklahoma scientist is perfecting the art (and by art I mean science) of studying ancient dental plaque. We’ve highlighted Dr. Christina Warinner before when her research gained national recognition. Now she’s featured in a fantastic video produced by Illumina. The company describes itself as, “a leading developer, manufacturer, and marketer of life science tools and integrated systems for large-scale analysis of genetic variation and function.”
Dr. Warinner likes to say she’s an “archaeologist of the invisible”. She studies the dental plaque from teeth that are thousands of years old. Bacteria covers that dental plaque, from that she’s able to learn all kinds of things about the person who once used that tooth. Where they lived, what they ate, whether they were healthy or not, etc…
Scientists at the University of Oklahoma are getting international attention for research into what’s in your gut. Cecil Lewis and his team at the Laboratories of Molecular Anthropology and Microbiome Research at OU studied what’s inside the guts of a group of Norman residents and compared it to the guts of a hunter-gatherer society in the Amazon.
They found that the population of gut microbes of the people in the Amazon and city-dwellers in Norman have some significant differences. For example, one microbe called Treponema was not found in the Norman population but was found in the tribe of hunter-gatherers. This is a bacteria that has been in human and primate guts for millions of years.
“In our study, we show that these lost bacteria are in fact multiple species that are likely capable of fermenting fiber and generating short chain fatty acids in the gut. Short chain fatty acids have anti-inflammatory properties. This raises an important question, could these lost Treponema be keystone species that explain the increased risk for autoimmunce disorders in industrialized people? This is what we hope to explore next,”says Lewis.