Stefan Ruhl
@Ruhl_Lab
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We study how #glycans in #saliva make #bacteria stick to #teeth
University at Buffalo, NY, USA
Joined September 2016
Dear Friends, Colleagues, and Followers, I have reached a stage where I decided to take a break from the Twitter/X media platform. I will reconsider my decision after an extended period of time, but if I don't miss anything by then, I will cancel my account. // Stefan
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@johnhawks Could it have come from some adornment held ox fixated between the teeth that was wiggling back and forth during movements of the body? I am sure you must have thought of all these possibilities. I think a lot of repetitive friction must have caused these grooves.
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🦷🦷 #TEETH 🦷🦷
The most substantial skeleton attributed to Homo habilis, extremely fragmented, is OH 62—around 1.8 million years old from the FLK site at Olduvai Gorge. Two teeth have grooves reflecting the individual's habitual use of toothpicks, among the oldest known. #FossilFriday
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🦷🦷 #TEETH ❕🦷🦷
In the past ~20 years, #microCT scanning has truly revolutionized the way we study #bat morphology and biomechanics. Check out what our lab has been up to recently in this interview @vaibhchhaya and I did for @Micro_Photonics:
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RT @evolutionscribe: Sugars to feed the brain? If these dates are correct, humans were able to digest more sugars in starch when our ancest…
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RT @evobioclio: How humans evolved a starch-digesting superpower long before farming | Science | AAAS
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💧💧 #SALIVA ❕💧💧
Our study, "Reconstruction of the human amylase locus reveals ancient duplications seeding modern-day variation," has just been published in Science. This thread will provide a brief overview of how gene duplications have shaped modern variation in the amylase locus.
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💧💧 #SALIVA ❗️💧💧 CALL FOR PAPERS: #JADAFS is developing a special issue on the diagnostic and healing properties of #saliva. Submit your work at #JADAJournals
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🦷🦠🦠 #OralMicrobiome 🦠🦠🦷 One of the most common bacteria in dental plaque is Corynebacterium matruchotii (one colony, shown). And it has a unique form of cell division, splitting into as many 14 cells at a time.
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RT @garethjfraser: Toothy skin! Perfectly uniform skin denticles of the juvenile Nurse Shark (Ginglymostoma cirratum). These flat 'skin-tee…
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🦷🦠🦠 #OralMicrobiome 🦠🦠🦷
My latest for @MBLScience highlights an absolutely wild form of cell division by C. matruchotii—a bacteria that lives in the human mouth. Instead of dividing into two, the bacteria splits into multiple cells at once, a rare process called multiple fission. (Watch the video)
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🦷🦷 #TEETH ❕🦷🦷
It turns out...Komodo dragons have iron-coated teeth! Their serrations and tips pop into the mouth with an orange hue. Using different techniques, we show that these iconic lizards have special iron-rich coatings on each tooth, keeping them razor sharp!
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