Tag Archives: Nature

Keystone Ancient Forest

The Keystone Ancient Forest is one of the gems of northeastern Oklahoma. The forest is located in Sand Springs and is home to trees that are hundreds of years old. It’s made up of cross timbers which are some of the toughest trees in existence which is why it’s never been developed.

The forest shows what Oklahoma (or at least the Sand Springs area) looked like well before civilization began exploring it.

It’s a great place to go for a walk and take a step back in time but it does have limited hours and pets are not allowed.

It’s only open on select days throughout the month. For more information on the Forest click here for the city of Sand Springs.

 

It’s what’s in the Gut that matters

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.

You can read the research for yourself in nature.  Or you can read this article in Science Magazine by Ann Gibbons to see how researchers convinced the tribe in the Amazon to let them study their guts. (Let’s just say, sometimes science ain’t pretty.). Gibbons sums it up quite nicely about what this means and why this kind of research is important.

Medieval Dental Plaque Gets OU Researcher Top Honors

Research conducted by a University of Oklahoma anthropology professor has been named one of the top 100 stories of the year by Discover Magazine.

Christina Warinner directed a study of dental plaque from four Medieval skeletons. She published her research in Nature this past February. Discover Magazine was so impressed it’s ranked it the 69th best science story of the year and will feature it in an article in its January/February issue of the top 100 stories of of 2014.

According to OU, Warinner’s study found evidence of ancient DNA from wheat, pork, mutton, and a plant belonging to the mustard family. She also found ancient protein from cattle, sheep, and goat milk.

 

courtesy: University of Oklahoma

Photo credit: Malin Holst, courtesy: University of Oklahoma

The picture above shows a human jawbone that dates to the 1st-4th century from York, UK. Dr. Warinner doesn’t know the sex but says the person was in their 20s or 30s when they died. You can clearly see the build-up of dental plaque on the teeth. Dr. Warinner says this particular example tested positive of milk proteins.

Warinner wrote an article for CNN in 2012 explaining what she does and why it’s so important. “By extracting DNA from ancient human bones, we can reconstruct the human genome at different times in the past and look for differences that might be related to adaptations, risk factors, or inherited diseases,” she wrote. Adding, “The aim is to better understand the evolutionary vulnerabilities of the human body so that we can better manage and improve our health in the future.”

Want more with some cool illustrations? Here she is giving a presentation at TED in 2012.